diff --git a/common/iobuf.c b/common/iobuf.c index a5b8d5955..e82e75d1b 100644 --- a/common/iobuf.c +++ b/common/iobuf.c @@ -1,2827 +1,2842 @@ /* iobuf.c - File Handling for OpenPGP. * Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2006, 2007, 2008, * 2009, 2010, 2011 Free Software Foundation, Inc. * Copyright (C) 2015 g10 Code GmbH * * This file is part of GnuPG. * * This file is free software; you can redistribute it and/or modify * it under the terms of either * * - the GNU Lesser General Public License as published by the Free * Software Foundation; either version 3 of the License, or (at * your option) any later version. * * or * * - the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at * your option) any later version. * * or both in parallel, as here. * * This file is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_W32_SYSTEM # ifdef HAVE_WINSOCK2_H # include # endif # include #endif #ifdef __riscos__ # include # include #endif /* __riscos__ */ #include #include "util.h" #include "sysutils.h" #include "iobuf.h" /*-- Begin configurable part. --*/ /* The standard size of the internal buffers. */ #define DEFAULT_IOBUF_BUFFER_SIZE (64*1024) /* To avoid a potential DoS with compression packets we better limit the number of filters in a chain. */ #define MAX_NESTING_FILTER 64 /*-- End configurable part. --*/ /* The size of the iobuffers. This can be changed using the * iobuf_set_buffer_size function. */ static unsigned int iobuf_buffer_size = DEFAULT_IOBUF_BUFFER_SIZE; #ifdef HAVE_W32_SYSTEM # ifdef HAVE_W32CE_SYSTEM # define FD_FOR_STDIN (es_fileno (es_stdin)) # define FD_FOR_STDOUT (es_fileno (es_stdout)) # else # define FD_FOR_STDIN (GetStdHandle (STD_INPUT_HANDLE)) # define FD_FOR_STDOUT (GetStdHandle (STD_OUTPUT_HANDLE)) # endif #else /*!HAVE_W32_SYSTEM*/ # define FD_FOR_STDIN (0) # define FD_FOR_STDOUT (1) #endif /*!HAVE_W32_SYSTEM*/ /* The context used by the file filter. */ typedef struct { gnupg_fd_t fp; /* Open file pointer or handle. */ int keep_open; int no_cache; int eof_seen; int delayed_rc; int print_only_name; /* Flags indicating that fname is not a real file. */ char fname[1]; /* Name of the file. */ } file_filter_ctx_t; /* The context used by the estream filter. */ typedef struct { estream_t fp; /* Open estream handle. */ int keep_open; int no_cache; int eof_seen; int use_readlimit; /* Take care of the readlimit. */ size_t readlimit; /* Number of bytes left to read. */ int print_only_name; /* Flags indicating that fname is not a real file. */ char fname[1]; /* Name of the file. */ } file_es_filter_ctx_t; /* Object to control the "close cache". */ struct close_cache_s { struct close_cache_s *next; gnupg_fd_t fp; char fname[1]; }; typedef struct close_cache_s *close_cache_t; static close_cache_t close_cache; int iobuf_debug_mode; #ifdef HAVE_W32_SYSTEM typedef struct { int sock; int keep_open; int no_cache; int eof_seen; int print_only_name; /* Flag indicating that fname is not a real file. */ char fname[1]; /* Name of the file */ } sock_filter_ctx_t; #endif /*HAVE_W32_SYSTEM*/ /* The first partial length header block must be of size 512 to make * it easier (and more efficient) we use a min. block size of 512 for * all chunks (but the last one) */ #define OP_MIN_PARTIAL_CHUNK 512 #define OP_MIN_PARTIAL_CHUNK_2POW 9 /* The context we use for the block filter (used to handle OpenPGP length information header). */ typedef struct { int use; size_t size; size_t count; int partial; /* 1 = partial header, 2 in last partial packet. */ char *buffer; /* Used for partial header. */ size_t buflen; /* Used size of buffer. */ int first_c; /* First character of a partial header (which is > 0). */ int eof; } block_filter_ctx_t; /* Local prototypes. */ static int underflow (iobuf_t a, int clear_pending_eof); static int underflow_target (iobuf_t a, int clear_pending_eof, size_t target); static int translate_file_handle (int fd, int for_write); /* Sends any pending data to the filter's FILTER function. Note: this works on the filter and not on the whole pipeline. That is, iobuf_flush doesn't necessarily cause data to be written to any underlying file; it just causes any data buffered at the filter A to be sent to A's filter function. If A is a IOBUF_OUTPUT_TEMP filter, then this also enlarges the buffer by iobuf_buffer_size. May only be called on an IOBUF_OUTPUT or IOBUF_OUTPUT_TEMP filters. */ static int filter_flush (iobuf_t a); /* This is a replacement for strcmp. Under W32 it does not distinguish between backslash and slash. */ static int fd_cache_strcmp (const char *a, const char *b) { #ifdef HAVE_DOSISH_SYSTEM for (; *a && *b; a++, b++) { if (*a != *b && !((*a == '/' && *b == '\\') || (*a == '\\' && *b == '/')) ) break; } return *(const unsigned char *)a - *(const unsigned char *)b; #else return strcmp (a, b); #endif } + +#ifdef HAVE_W32_SYSTEM +static int +any8bitchar (const char *string) +{ + if (string) + for ( ; *string; string++) + if ((*string & 0x80)) + return 1; + return 0; +} +#endif /*HAVE_W32_SYSTEM*/ + /* * Invalidate (i.e. close) a cached iobuf */ static int fd_cache_invalidate (const char *fname) { close_cache_t cc; int rc = 0; assert (fname); if (DBG_IOBUF) log_debug ("fd_cache_invalidate (%s)\n", fname); for (cc = close_cache; cc; cc = cc->next) { if (cc->fp != GNUPG_INVALID_FD && !fd_cache_strcmp (cc->fname, fname)) { if (DBG_IOBUF) log_debug (" did (%s)\n", cc->fname); #ifdef HAVE_W32_SYSTEM if (!CloseHandle (cc->fp)) rc = -1; #else rc = close (cc->fp); #endif cc->fp = GNUPG_INVALID_FD; } } return rc; } /* Try to sync changes to the disk. This is to avoid data loss during a system crash in write/close/rename cycle on some file systems. */ static int fd_cache_synchronize (const char *fname) { int err = 0; #ifdef HAVE_FSYNC close_cache_t cc; if (DBG_IOBUF) log_debug ("fd_cache_synchronize (%s)\n", fname); for (cc=close_cache; cc; cc = cc->next ) { if (cc->fp != GNUPG_INVALID_FD && !fd_cache_strcmp (cc->fname, fname)) { if (DBG_IOBUF) log_debug (" did (%s)\n", cc->fname); err = fsync (cc->fp); } } #else (void)fname; #endif /*HAVE_FSYNC*/ return err; } static gnupg_fd_t direct_open (const char *fname, const char *mode, int mode700) { #ifdef HAVE_W32_SYSTEM unsigned long da, cd, sm; HANDLE hfile; (void)mode700; /* Note, that we do not handle all mode combinations */ /* According to the ReactOS source it seems that open() of the * standard MSW32 crt does open the file in shared mode which is * something new for MS applications ;-) */ if (strchr (mode, '+')) { if (fd_cache_invalidate (fname)) return GNUPG_INVALID_FD; da = GENERIC_READ | GENERIC_WRITE; cd = OPEN_EXISTING; sm = FILE_SHARE_READ | FILE_SHARE_WRITE; } else if (strchr (mode, 'w')) { if (fd_cache_invalidate (fname)) return GNUPG_INVALID_FD; da = GENERIC_WRITE; cd = CREATE_ALWAYS; sm = FILE_SHARE_WRITE; } else { da = GENERIC_READ; cd = OPEN_EXISTING; sm = FILE_SHARE_READ; } -#ifdef HAVE_W32CE_SYSTEM - { - wchar_t *wfname = utf8_to_wchar (fname); - if (wfname) - { - hfile = CreateFile (wfname, da, sm, NULL, cd, - FILE_ATTRIBUTE_NORMAL, NULL); - xfree (wfname); - } - else - hfile = INVALID_HANDLE_VALUE; - } -#else - hfile = CreateFile (fname, da, sm, NULL, cd, FILE_ATTRIBUTE_NORMAL, NULL); -#endif + /* We use the Unicode version of the function only if needed to + * avoid an extra conversion step. */ + if (any8bitchar (fname)) + { + wchar_t *wfname = utf8_to_wchar (fname); + if (wfname) + { + hfile = CreateFileW (wfname, da, sm, NULL, cd, + FILE_ATTRIBUTE_NORMAL, NULL); + xfree (wfname); + } + else + hfile = INVALID_HANDLE_VALUE; + } + else + hfile = CreateFileA (fname, da, sm, NULL, cd, FILE_ATTRIBUTE_NORMAL, NULL); + return hfile; #else /*!HAVE_W32_SYSTEM*/ int oflag; int cflag = S_IRUSR | S_IWUSR; if (!mode700) cflag |= S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH; /* Note, that we do not handle all mode combinations */ if (strchr (mode, '+')) { if (fd_cache_invalidate (fname)) return GNUPG_INVALID_FD; oflag = O_RDWR; } else if (strchr (mode, 'w')) { if (fd_cache_invalidate (fname)) return GNUPG_INVALID_FD; oflag = O_WRONLY | O_CREAT | O_TRUNC; } else { oflag = O_RDONLY; } #ifdef O_BINARY if (strchr (mode, 'b')) oflag |= O_BINARY; #endif #ifdef __riscos__ { struct stat buf; /* Don't allow iobufs on directories */ if (!stat (fname, &buf) && S_ISDIR (buf.st_mode) && !S_ISREG (buf.st_mode)) return __set_errno (EISDIR); } #endif return open (fname, oflag, cflag); #endif /*!HAVE_W32_SYSTEM*/ } /* * Instead of closing an FD we keep it open and cache it for later reuse * Note that this caching strategy only works if the process does not chdir. */ static void fd_cache_close (const char *fname, gnupg_fd_t fp) { close_cache_t cc; assert (fp); if (!fname || !*fname) { #ifdef HAVE_W32_SYSTEM CloseHandle (fp); #else close (fp); #endif if (DBG_IOBUF) log_debug ("fd_cache_close (%d) real\n", (int)fp); return; } /* try to reuse a slot */ for (cc = close_cache; cc; cc = cc->next) { if (cc->fp == GNUPG_INVALID_FD && !fd_cache_strcmp (cc->fname, fname)) { cc->fp = fp; if (DBG_IOBUF) log_debug ("fd_cache_close (%s) used existing slot\n", fname); return; } } /* add a new one */ if (DBG_IOBUF) log_debug ("fd_cache_close (%s) new slot created\n", fname); cc = xcalloc (1, sizeof *cc + strlen (fname)); strcpy (cc->fname, fname); cc->fp = fp; cc->next = close_cache; close_cache = cc; } /* * Do a direct_open on FNAME but first try to reuse one from the fd_cache */ static gnupg_fd_t fd_cache_open (const char *fname, const char *mode) { close_cache_t cc; assert (fname); for (cc = close_cache; cc; cc = cc->next) { if (cc->fp != GNUPG_INVALID_FD && !fd_cache_strcmp (cc->fname, fname)) { gnupg_fd_t fp = cc->fp; cc->fp = GNUPG_INVALID_FD; if (DBG_IOBUF) log_debug ("fd_cache_open (%s) using cached fp\n", fname); #ifdef HAVE_W32_SYSTEM if (SetFilePointer (fp, 0, NULL, FILE_BEGIN) == 0xffffffff) { log_error ("rewind file failed on handle %p: ec=%d\n", fp, (int) GetLastError ()); fp = GNUPG_INVALID_FD; } #else if (lseek (fp, 0, SEEK_SET) == (off_t) - 1) { log_error ("can't rewind fd %d: %s\n", fp, strerror (errno)); fp = GNUPG_INVALID_FD; } #endif return fp; } } if (DBG_IOBUF) log_debug ("fd_cache_open (%s) not cached\n", fname); return direct_open (fname, mode, 0); } static int file_filter (void *opaque, int control, iobuf_t chain, byte * buf, size_t * ret_len) { file_filter_ctx_t *a = opaque; gnupg_fd_t f = a->fp; size_t size = *ret_len; size_t nbytes = 0; int rc = 0; (void)chain; /* Not used. */ if (control == IOBUFCTRL_UNDERFLOW) { log_assert (size); /* We need a buffer. */ if (a->eof_seen) { rc = -1; *ret_len = 0; } else if (a->delayed_rc) { rc = a->delayed_rc; a->delayed_rc = 0; if (rc == -1) a->eof_seen = -1; *ret_len = 0; } else { #ifdef HAVE_W32_SYSTEM unsigned long nread; nbytes = 0; if (!ReadFile (f, buf, size, &nread, NULL)) { int ec = (int) GetLastError (); if (ec != ERROR_BROKEN_PIPE) { rc = gpg_error_from_errno (ec); log_error ("%s: read error: ec=%d\n", a->fname, ec); } } else if (!nread) { a->eof_seen = 1; rc = -1; } else { nbytes = nread; } #else int n; nbytes = 0; read_more: do { n = read (f, buf + nbytes, size - nbytes); } while (n == -1 && errno == EINTR); if (n > 0) { nbytes += n; if (nbytes < size) goto read_more; } else if (!n) /* eof */ { if (nbytes) a->delayed_rc = -1; else { a->eof_seen = 1; rc = -1; } } else /* error */ { rc = gpg_error_from_syserror (); if (gpg_err_code (rc) != GPG_ERR_EPIPE) log_error ("%s: read error: %s\n", a->fname, gpg_strerror (rc)); if (nbytes) { a->delayed_rc = rc; rc = 0; } } #endif *ret_len = nbytes; } } else if (control == IOBUFCTRL_FLUSH) { if (size) { #ifdef HAVE_W32_SYSTEM byte *p = buf; unsigned long n; nbytes = size; do { if (size && !WriteFile (f, p, nbytes, &n, NULL)) { int ec = (int) GetLastError (); rc = gpg_error_from_errno (ec); log_error ("%s: write error: ec=%d\n", a->fname, ec); break; } p += n; nbytes -= n; } while (nbytes); nbytes = p - buf; #else byte *p = buf; int n; nbytes = size; do { do { n = write (f, p, nbytes); } while (n == -1 && errno == EINTR); if (n > 0) { p += n; nbytes -= n; } } while (n != -1 && nbytes); if (n == -1) { rc = gpg_error_from_syserror (); log_error ("%s: write error: %s\n", a->fname, strerror (errno)); } nbytes = p - buf; #endif } *ret_len = nbytes; } else if (control == IOBUFCTRL_INIT) { a->eof_seen = 0; a->delayed_rc = 0; a->keep_open = 0; a->no_cache = 0; } else if (control == IOBUFCTRL_DESC) { mem2str (buf, "file_filter(fd)", *ret_len); } else if (control == IOBUFCTRL_FREE) { if (f != FD_FOR_STDIN && f != FD_FOR_STDOUT) { if (DBG_IOBUF) log_debug ("%s: close fd/handle %d\n", a->fname, FD2INT (f)); if (!a->keep_open) fd_cache_close (a->no_cache ? NULL : a->fname, f); } xfree (a); /* We can free our context now. */ } return rc; } /* Similar to file_filter but using the estream system. */ static int file_es_filter (void *opaque, int control, iobuf_t chain, byte * buf, size_t * ret_len) { file_es_filter_ctx_t *a = opaque; estream_t f = a->fp; size_t size = *ret_len; size_t nbytes = 0; int rc = 0; (void)chain; /* Not used. */ if (control == IOBUFCTRL_UNDERFLOW) { assert (size); /* We need a buffer. */ if (a->eof_seen) { rc = -1; *ret_len = 0; } else if (a->use_readlimit) { nbytes = 0; if (!a->readlimit) { /* eof */ a->eof_seen = 1; rc = -1; } else { if (size > a->readlimit) size = a->readlimit; rc = es_read (f, buf, size, &nbytes); if (rc == -1) { /* error */ rc = gpg_error_from_syserror (); log_error ("%s: read error: %s\n", a->fname,strerror (errno)); } else if (!nbytes) { /* eof */ a->eof_seen = 1; rc = -1; } else a->readlimit -= nbytes; } *ret_len = nbytes; } else { nbytes = 0; rc = es_read (f, buf, size, &nbytes); if (rc == -1) { /* error */ rc = gpg_error_from_syserror (); log_error ("%s: read error: %s\n", a->fname, strerror (errno)); } else if (!nbytes) { /* eof */ a->eof_seen = 1; rc = -1; } *ret_len = nbytes; } } else if (control == IOBUFCTRL_FLUSH) { if (size) { byte *p = buf; size_t nwritten; nbytes = size; do { nwritten = 0; if (es_write (f, p, nbytes, &nwritten)) { rc = gpg_error_from_syserror (); log_error ("%s: write error: %s\n", a->fname, strerror (errno)); break; } p += nwritten; nbytes -= nwritten; } while (nbytes); nbytes = p - buf; } *ret_len = nbytes; } else if (control == IOBUFCTRL_INIT) { a->eof_seen = 0; a->no_cache = 0; } else if (control == IOBUFCTRL_DESC) { mem2str (buf, "estream_filter", *ret_len); } else if (control == IOBUFCTRL_FREE) { if (f != es_stdin && f != es_stdout) { if (DBG_IOBUF) log_debug ("%s: es_fclose %p\n", a->fname, f); if (!a->keep_open) es_fclose (f); } f = NULL; xfree (a); /* We can free our context now. */ } return rc; } #ifdef HAVE_W32_SYSTEM /* Because network sockets are special objects under Lose32 we have to use a dedicated filter for them. */ static int sock_filter (void *opaque, int control, iobuf_t chain, byte * buf, size_t * ret_len) { sock_filter_ctx_t *a = opaque; size_t size = *ret_len; size_t nbytes = 0; int rc = 0; (void)chain; if (control == IOBUFCTRL_UNDERFLOW) { assert (size); /* need a buffer */ if (a->eof_seen) { rc = -1; *ret_len = 0; } else { int nread; nread = recv (a->sock, buf, size, 0); if (nread == SOCKET_ERROR) { int ec = (int) WSAGetLastError (); rc = gpg_error_from_errno (ec); log_error ("socket read error: ec=%d\n", ec); } else if (!nread) { a->eof_seen = 1; rc = -1; } else { nbytes = nread; } *ret_len = nbytes; } } else if (control == IOBUFCTRL_FLUSH) { if (size) { byte *p = buf; int n; nbytes = size; do { n = send (a->sock, p, nbytes, 0); if (n == SOCKET_ERROR) { int ec = (int) WSAGetLastError (); rc = gpg_error_from_errno (ec); log_error ("socket write error: ec=%d\n", ec); break; } p += n; nbytes -= n; } while (nbytes); nbytes = p - buf; } *ret_len = nbytes; } else if (control == IOBUFCTRL_INIT) { a->eof_seen = 0; a->keep_open = 0; a->no_cache = 0; } else if (control == IOBUFCTRL_DESC) { mem2str (buf, "sock_filter", *ret_len); } else if (control == IOBUFCTRL_FREE) { if (!a->keep_open) closesocket (a->sock); xfree (a); /* we can free our context now */ } return rc; } #endif /*HAVE_W32_SYSTEM*/ /**************** * This is used to implement the block write mode. * Block reading is done on a byte by byte basis in readbyte(), * without a filter */ static int block_filter (void *opaque, int control, iobuf_t chain, byte * buffer, size_t * ret_len) { block_filter_ctx_t *a = opaque; char *buf = (char *)buffer; size_t size = *ret_len; int c, needed, rc = 0; char *p; if (control == IOBUFCTRL_UNDERFLOW) { size_t n = 0; p = buf; assert (size); /* need a buffer */ if (a->eof) /* don't read any further */ rc = -1; while (!rc && size) { if (!a->size) { /* get the length bytes */ if (a->partial == 2) { a->eof = 1; if (!n) rc = -1; break; } else if (a->partial) { /* These OpenPGP introduced huffman like encoded length * bytes are really a mess :-( */ if (a->first_c) { c = a->first_c; a->first_c = 0; } else if ((c = iobuf_get (chain)) == -1) { log_error ("block_filter: 1st length byte missing\n"); rc = GPG_ERR_BAD_DATA; break; } if (c < 192) { a->size = c; a->partial = 2; if (!a->size) { a->eof = 1; if (!n) rc = -1; break; } } else if (c < 224) { a->size = (c - 192) * 256; if ((c = iobuf_get (chain)) == -1) { log_error ("block_filter: 2nd length byte missing\n"); rc = GPG_ERR_BAD_DATA; break; } a->size += c + 192; a->partial = 2; if (!a->size) { a->eof = 1; if (!n) rc = -1; break; } } else if (c == 255) { size_t len = 0; int i; for (i = 0; i < 4; i++) if ((c = iobuf_get (chain)) == -1) break; else len = ((len << 8) | c); if (i < 4) { log_error ("block_filter: invalid 4 byte length\n"); rc = GPG_ERR_BAD_DATA; break; } a->size = len; a->partial = 2; if (!a->size) { a->eof = 1; if (!n) rc = -1; break; } } else { /* Next partial body length. */ a->size = 1 << (c & 0x1f); } /* log_debug("partial: ctx=%p c=%02x size=%u\n", a, c, a->size); */ } else BUG (); } while (!rc && size && a->size) { needed = size < a->size ? size : a->size; c = iobuf_read (chain, p, needed); if (c < needed) { if (c == -1) c = 0; log_error ("block_filter %p: read error (size=%lu,a->size=%lu)\n", a, (ulong) size + c, (ulong) a->size + c); rc = GPG_ERR_BAD_DATA; } else { size -= c; a->size -= c; p += c; n += c; } } } *ret_len = n; } else if (control == IOBUFCTRL_FLUSH) { if (a->partial) { /* the complicated openpgp scheme */ size_t blen, n, nbytes = size + a->buflen; assert (a->buflen <= OP_MIN_PARTIAL_CHUNK); if (nbytes < OP_MIN_PARTIAL_CHUNK) { /* not enough to write a partial block out; so we store it */ if (!a->buffer) a->buffer = xmalloc (OP_MIN_PARTIAL_CHUNK); memcpy (a->buffer + a->buflen, buf, size); a->buflen += size; } else { /* okay, we can write out something */ /* do this in a loop to use the most efficient block lengths */ p = buf; do { /* find the best matching block length - this is limited * by the size of the internal buffering */ for (blen = OP_MIN_PARTIAL_CHUNK * 2, c = OP_MIN_PARTIAL_CHUNK_2POW + 1; blen <= nbytes; blen *= 2, c++) ; blen /= 2; c--; /* write the partial length header */ assert (c <= 0x1f); /*;-) */ c |= 0xe0; iobuf_put (chain, c); if ((n = a->buflen)) { /* write stuff from the buffer */ assert (n == OP_MIN_PARTIAL_CHUNK); if (iobuf_write (chain, a->buffer, n)) rc = gpg_error_from_syserror (); a->buflen = 0; nbytes -= n; } if ((n = nbytes) > blen) n = blen; if (n && iobuf_write (chain, p, n)) rc = gpg_error_from_syserror (); p += n; nbytes -= n; } while (!rc && nbytes >= OP_MIN_PARTIAL_CHUNK); /* store the rest in the buffer */ if (!rc && nbytes) { assert (!a->buflen); assert (nbytes < OP_MIN_PARTIAL_CHUNK); if (!a->buffer) a->buffer = xmalloc (OP_MIN_PARTIAL_CHUNK); memcpy (a->buffer, p, nbytes); a->buflen = nbytes; } } } else BUG (); } else if (control == IOBUFCTRL_INIT) { if (DBG_IOBUF) log_debug ("init block_filter %p\n", a); if (a->partial) a->count = 0; else if (a->use == IOBUF_INPUT) a->count = a->size = 0; else a->count = a->size; /* force first length bytes */ a->eof = 0; a->buffer = NULL; a->buflen = 0; } else if (control == IOBUFCTRL_DESC) { mem2str (buf, "block_filter", *ret_len); } else if (control == IOBUFCTRL_FREE) { if (a->use == IOBUF_OUTPUT) { /* write the end markers */ if (a->partial) { u32 len; /* write out the remaining bytes without a partial header * the length of this header may be 0 - but if it is * the first block we are not allowed to use a partial header * and frankly we can't do so, because this length must be * a power of 2. This is _really_ complicated because we * have to check the possible length of a packet prior * to it's creation: a chain of filters becomes complicated * and we need a lot of code to handle compressed packets etc. * :-((((((( */ /* construct header */ len = a->buflen; /*log_debug("partial: remaining length=%u\n", len ); */ if (len < 192) rc = iobuf_put (chain, len); else if (len < 8384) { if (!(rc = iobuf_put (chain, ((len - 192) / 256) + 192))) rc = iobuf_put (chain, ((len - 192) % 256)); } else { /* use a 4 byte header */ if (!(rc = iobuf_put (chain, 0xff))) if (!(rc = iobuf_put (chain, (len >> 24) & 0xff))) if (!(rc = iobuf_put (chain, (len >> 16) & 0xff))) if (!(rc = iobuf_put (chain, (len >> 8) & 0xff))) rc = iobuf_put (chain, len & 0xff); } if (!rc && len) rc = iobuf_write (chain, a->buffer, len); if (rc) { log_error ("block_filter: write error: %s\n", strerror (errno)); rc = gpg_error_from_syserror (); } xfree (a->buffer); a->buffer = NULL; a->buflen = 0; } else BUG (); } else if (a->size) { log_error ("block_filter: pending bytes!\n"); } if (DBG_IOBUF) log_debug ("free block_filter %p\n", a); xfree (a); /* we can free our context now */ } return rc; } /* Change the default size for all IOBUFs to KILOBYTE. This needs to * be called before any iobufs are used and can only be used once. * Returns the current value. Using 0 has no effect except for * returning the current value. */ unsigned int iobuf_set_buffer_size (unsigned int kilobyte) { static int used; if (!used && kilobyte) { if (kilobyte < 4) kilobyte = 4; else if (kilobyte > 16*1024) kilobyte = 16*1024; iobuf_buffer_size = kilobyte * 1024; used = 1; } return iobuf_buffer_size / 1024; } #define MAX_IOBUF_DESC 32 /* * Fill the buffer by the description of iobuf A. * The buffer size should be MAX_IOBUF_DESC (or larger). * Returns BUF as (const char *). */ static const char * iobuf_desc (iobuf_t a, byte *buf) { size_t len = MAX_IOBUF_DESC; if (! a || ! a->filter) memcpy (buf, "?", 2); else a->filter (a->filter_ov, IOBUFCTRL_DESC, NULL, buf, &len); return buf; } static void print_chain (iobuf_t a) { if (!DBG_IOBUF) return; for (; a; a = a->chain) { byte desc[MAX_IOBUF_DESC]; log_debug ("iobuf chain: %d.%d '%s' filter_eof=%d start=%d len=%d\n", a->no, a->subno, iobuf_desc (a, desc), a->filter_eof, (int) a->d.start, (int) a->d.len); } } int iobuf_print_chain (iobuf_t a) { print_chain (a); return 0; } iobuf_t iobuf_alloc (int use, size_t bufsize) { iobuf_t a; static int number = 0; assert (use == IOBUF_INPUT || use == IOBUF_INPUT_TEMP || use == IOBUF_OUTPUT || use == IOBUF_OUTPUT_TEMP); if (bufsize == 0) { log_bug ("iobuf_alloc() passed a bufsize of 0!\n"); bufsize = iobuf_buffer_size; } a = xcalloc (1, sizeof *a); a->use = use; a->d.buf = xmalloc (bufsize); a->d.size = bufsize; a->no = ++number; a->subno = 0; a->real_fname = NULL; return a; } int iobuf_close (iobuf_t a) { iobuf_t a_chain; size_t dummy_len = 0; int rc = 0; for (; a; a = a_chain) { byte desc[MAX_IOBUF_DESC]; int rc2 = 0; a_chain = a->chain; if (a->use == IOBUF_OUTPUT && (rc = filter_flush (a))) log_error ("filter_flush failed on close: %s\n", gpg_strerror (rc)); if (DBG_IOBUF) log_debug ("iobuf-%d.%d: close '%s'\n", a->no, a->subno, iobuf_desc (a, desc)); if (a->filter && (rc2 = a->filter (a->filter_ov, IOBUFCTRL_FREE, a->chain, NULL, &dummy_len))) log_error ("IOBUFCTRL_FREE failed on close: %s\n", gpg_strerror (rc)); if (! rc && rc2) /* Whoops! An error occurred. Save it in RC if we haven't already recorded an error. */ rc = rc2; xfree (a->real_fname); if (a->d.buf) { memset (a->d.buf, 0, a->d.size); /* erase the buffer */ xfree (a->d.buf); } xfree (a); } return rc; } int iobuf_cancel (iobuf_t a) { const char *s; iobuf_t a2; int rc; #if defined(HAVE_W32_SYSTEM) || defined(__riscos__) char *remove_name = NULL; #endif if (a && a->use == IOBUF_OUTPUT) { s = iobuf_get_real_fname (a); if (s && *s) { #if defined(HAVE_W32_SYSTEM) || defined(__riscos__) remove_name = xstrdup (s); #else remove (s); #endif } } /* send a cancel message to all filters */ for (a2 = a; a2; a2 = a2->chain) { size_t dummy = 0; if (a2->filter) a2->filter (a2->filter_ov, IOBUFCTRL_CANCEL, a2->chain, NULL, &dummy); } rc = iobuf_close (a); #if defined(HAVE_W32_SYSTEM) || defined(__riscos__) if (remove_name) { /* Argg, MSDOS does not allow removing open files. So * we have to do it here */ #ifdef HAVE_W32CE_SYSTEM wchar_t *wtmp = utf8_to_wchar (remove_name); if (wtmp) DeleteFile (wtmp); xfree (wtmp); #else remove (remove_name); #endif xfree (remove_name); } #endif return rc; } iobuf_t iobuf_temp (void) { return iobuf_alloc (IOBUF_OUTPUT_TEMP, iobuf_buffer_size); } iobuf_t iobuf_temp_with_content (const char *buffer, size_t length) { iobuf_t a; int i; a = iobuf_alloc (IOBUF_INPUT_TEMP, length); assert (length == a->d.size); /* memcpy (a->d.buf, buffer, length); */ for (i=0; i < length; i++) a->d.buf[i] = buffer[i]; a->d.len = length; return a; } int iobuf_is_pipe_filename (const char *fname) { if (!fname || (*fname=='-' && !fname[1]) ) return 1; return check_special_filename (fname, 0, 1) != -1; } static iobuf_t do_open (const char *fname, int special_filenames, int use, const char *opentype, int mode700) { iobuf_t a; gnupg_fd_t fp; file_filter_ctx_t *fcx; size_t len = 0; int print_only = 0; int fd; byte desc[MAX_IOBUF_DESC]; assert (use == IOBUF_INPUT || use == IOBUF_OUTPUT); if (special_filenames /* NULL or '-'. */ && (!fname || (*fname == '-' && !fname[1]))) { if (use == IOBUF_INPUT) { fp = FD_FOR_STDIN; fname = "[stdin]"; } else { fp = FD_FOR_STDOUT; fname = "[stdout]"; } print_only = 1; } else if (!fname) return NULL; else if (special_filenames && (fd = check_special_filename (fname, 0, 1)) != -1) return iobuf_fdopen (translate_file_handle (fd, use == IOBUF_INPUT ? 0 : 1), opentype); else { if (use == IOBUF_INPUT) fp = fd_cache_open (fname, opentype); else fp = direct_open (fname, opentype, mode700); if (fp == GNUPG_INVALID_FD) return NULL; } a = iobuf_alloc (use, iobuf_buffer_size); fcx = xmalloc (sizeof *fcx + strlen (fname)); fcx->fp = fp; fcx->print_only_name = print_only; strcpy (fcx->fname, fname); if (!print_only) a->real_fname = xstrdup (fname); a->filter = file_filter; a->filter_ov = fcx; file_filter (fcx, IOBUFCTRL_INIT, NULL, NULL, &len); if (DBG_IOBUF) log_debug ("iobuf-%d.%d: open '%s' desc=%s fd=%d\n", a->no, a->subno, fname, iobuf_desc (a, desc), FD2INT (fcx->fp)); return a; } iobuf_t iobuf_open (const char *fname) { return do_open (fname, 1, IOBUF_INPUT, "rb", 0); } iobuf_t iobuf_create (const char *fname, int mode700) { return do_open (fname, 1, IOBUF_OUTPUT, "wb", mode700); } iobuf_t iobuf_openrw (const char *fname) { return do_open (fname, 0, IOBUF_OUTPUT, "r+b", 0); } static iobuf_t do_iobuf_fdopen (int fd, const char *mode, int keep_open) { iobuf_t a; gnupg_fd_t fp; file_filter_ctx_t *fcx; size_t len = 0; fp = INT2FD (fd); a = iobuf_alloc (strchr (mode, 'w') ? IOBUF_OUTPUT : IOBUF_INPUT, iobuf_buffer_size); fcx = xmalloc (sizeof *fcx + 20); fcx->fp = fp; fcx->print_only_name = 1; fcx->keep_open = keep_open; sprintf (fcx->fname, "[fd %d]", fd); a->filter = file_filter; a->filter_ov = fcx; file_filter (fcx, IOBUFCTRL_INIT, NULL, NULL, &len); if (DBG_IOBUF) log_debug ("iobuf-%d.%d: fdopen%s '%s'\n", a->no, a->subno, keep_open? "_nc":"", fcx->fname); iobuf_ioctl (a, IOBUF_IOCTL_NO_CACHE, 1, NULL); return a; } iobuf_t iobuf_fdopen (int fd, const char *mode) { return do_iobuf_fdopen (fd, mode, 0); } iobuf_t iobuf_fdopen_nc (int fd, const char *mode) { return do_iobuf_fdopen (fd, mode, 1); } iobuf_t iobuf_esopen (estream_t estream, const char *mode, int keep_open, size_t readlimit) { iobuf_t a; file_es_filter_ctx_t *fcx; size_t len = 0; a = iobuf_alloc (strchr (mode, 'w') ? IOBUF_OUTPUT : IOBUF_INPUT, iobuf_buffer_size); fcx = xtrymalloc (sizeof *fcx + 30); fcx->fp = estream; fcx->print_only_name = 1; fcx->keep_open = keep_open; fcx->readlimit = readlimit; fcx->use_readlimit = !!readlimit; snprintf (fcx->fname, 30, "[fd %p]", estream); a->filter = file_es_filter; a->filter_ov = fcx; file_es_filter (fcx, IOBUFCTRL_INIT, NULL, NULL, &len); if (DBG_IOBUF) log_debug ("iobuf-%d.%d: esopen%s '%s'\n", a->no, a->subno, keep_open? "_nc":"", fcx->fname); return a; } iobuf_t iobuf_sockopen (int fd, const char *mode) { iobuf_t a; #ifdef HAVE_W32_SYSTEM sock_filter_ctx_t *scx; size_t len; a = iobuf_alloc (strchr (mode, 'w') ? IOBUF_OUTPUT : IOBUF_INPUT, iobuf_buffer_size); scx = xmalloc (sizeof *scx + 25); scx->sock = fd; scx->print_only_name = 1; sprintf (scx->fname, "[sock %d]", fd); a->filter = sock_filter; a->filter_ov = scx; sock_filter (scx, IOBUFCTRL_INIT, NULL, NULL, &len); if (DBG_IOBUF) log_debug ("iobuf-%d.%d: sockopen '%s'\n", a->no, a->subno, scx->fname); iobuf_ioctl (a, IOBUF_IOCTL_NO_CACHE, 1, NULL); #else a = iobuf_fdopen (fd, mode); #endif return a; } int iobuf_ioctl (iobuf_t a, iobuf_ioctl_t cmd, int intval, void *ptrval) { byte desc[MAX_IOBUF_DESC]; if (cmd == IOBUF_IOCTL_KEEP_OPEN) { /* Keep system filepointer/descriptor open. This was used in the past by http.c; this ioctl is not directly used anymore. */ if (DBG_IOBUF) log_debug ("iobuf-%d.%d: ioctl '%s' keep_open=%d\n", a ? a->no : -1, a ? a->subno : -1, iobuf_desc (a, desc), intval); for (; a; a = a->chain) if (!a->chain && a->filter == file_filter) { file_filter_ctx_t *b = a->filter_ov; b->keep_open = intval; return 0; } #ifdef HAVE_W32_SYSTEM else if (!a->chain && a->filter == sock_filter) { sock_filter_ctx_t *b = a->filter_ov; b->keep_open = intval; return 0; } #endif } else if (cmd == IOBUF_IOCTL_INVALIDATE_CACHE) { if (DBG_IOBUF) log_debug ("iobuf-*.*: ioctl '%s' invalidate\n", ptrval ? (char *) ptrval : "?"); if (!a && !intval && ptrval) { if (fd_cache_invalidate (ptrval)) return -1; return 0; } } else if (cmd == IOBUF_IOCTL_NO_CACHE) { if (DBG_IOBUF) log_debug ("iobuf-%d.%d: ioctl '%s' no_cache=%d\n", a ? a->no : -1, a ? a->subno : -1, iobuf_desc (a, desc), intval); for (; a; a = a->chain) if (!a->chain && a->filter == file_filter) { file_filter_ctx_t *b = a->filter_ov; b->no_cache = intval; return 0; } #ifdef HAVE_W32_SYSTEM else if (!a->chain && a->filter == sock_filter) { sock_filter_ctx_t *b = a->filter_ov; b->no_cache = intval; return 0; } #endif } else if (cmd == IOBUF_IOCTL_FSYNC) { /* Do a fsync on the open fd and return any errors to the caller of iobuf_ioctl. Note that we work on a file name here. */ if (DBG_IOBUF) log_debug ("iobuf-*.*: ioctl '%s' fsync\n", ptrval? (const char*)ptrval:""); if (!a && !intval && ptrval) { return fd_cache_synchronize (ptrval); } } return -1; } /**************** * Register an i/o filter. */ int iobuf_push_filter (iobuf_t a, int (*f) (void *opaque, int control, iobuf_t chain, byte * buf, size_t * len), void *ov) { return iobuf_push_filter2 (a, f, ov, 0); } int iobuf_push_filter2 (iobuf_t a, int (*f) (void *opaque, int control, iobuf_t chain, byte * buf, size_t * len), void *ov, int rel_ov) { iobuf_t b; size_t dummy_len = 0; int rc = 0; if (a->use == IOBUF_OUTPUT && (rc = filter_flush (a))) return rc; if (a->subno >= MAX_NESTING_FILTER) { log_error ("i/o filter too deeply nested - corrupted data?\n"); return GPG_ERR_BAD_DATA; } /* We want to create a new filter and put it in front of A. A simple implementation would do: b = iobuf_alloc (...); b->chain = a; return a; This is a bit problematic: A is the head of the pipeline and there are potentially many pointers to it. Requiring the caller to update all of these pointers is a burden. An alternative implementation would add a level of indirection. For instance, we could use a pipeline object, which contains a pointer to the first filter in the pipeline. This is not what we do either. Instead, we allocate a new buffer (B) and copy the first filter's state into that and use the initial buffer (A) for the new filter. One limitation of this approach is that it is not practical to maintain a pointer to a specific filter's state. Before: A | v 0x100 0x200 +----------+ +----------+ | filter x |--------->| filter y |---->.... +----------+ +----------+ After: B | v 0x300 +----------+ A | filter x | | +----------+ v 0x100 ^ v 0x200 +----------+ +----------+ | filter w | | filter y |---->.... +----------+ +----------+ Note: filter x's address changed from 0x100 to 0x300, but A still points to the head of the pipeline. */ b = xmalloc (sizeof *b); memcpy (b, a, sizeof *b); /* fixme: it is stupid to keep a copy of the name at every level * but we need the name somewhere because the name known by file_filter * may have been released when we need the name of the file */ b->real_fname = a->real_fname ? xstrdup (a->real_fname) : NULL; /* remove the filter stuff from the new stream */ a->filter = NULL; a->filter_ov = NULL; a->filter_ov_owner = 0; a->filter_eof = 0; if (a->use == IOBUF_OUTPUT_TEMP) /* A TEMP filter buffers any data sent to it; it does not forward any data down the pipeline. If we add a new filter to the pipeline, it shouldn't also buffer data. It should send it downstream to be buffered. Thus, the correct type for a filter added in front of an IOBUF_OUTPUT_TEMP filter is IOBUF_OUPUT, not IOBUF_OUTPUT_TEMP. */ { a->use = IOBUF_OUTPUT; /* When pipeline is written to, the temp buffer's size is increased accordingly. We don't need to allocate a 10 MB buffer for a non-terminal filter. Just use the default size. */ a->d.size = iobuf_buffer_size; } else if (a->use == IOBUF_INPUT_TEMP) /* Same idea as above. */ { a->use = IOBUF_INPUT; a->d.size = iobuf_buffer_size; } /* The new filter (A) gets a new buffer. If the pipeline is an output or temp pipeline, then giving the buffer to the new filter means that data that was written before the filter was pushed gets sent to the filter. That's clearly wrong. If the pipeline is an input pipeline, then giving the buffer to the new filter (A) means that data that has read from (B), but not yet read from the pipeline won't be processed by the new filter (A)! That's certainly not what we want. */ a->d.buf = xmalloc (a->d.size); a->d.len = 0; a->d.start = 0; /* disable nlimit for the new stream */ a->ntotal = b->ntotal + b->nbytes; a->nlimit = a->nbytes = 0; a->nofast = 0; /* make a link from the new stream to the original stream */ a->chain = b; /* setup the function on the new stream */ a->filter = f; a->filter_ov = ov; a->filter_ov_owner = rel_ov; a->subno = b->subno + 1; if (DBG_IOBUF) { byte desc[MAX_IOBUF_DESC]; log_debug ("iobuf-%d.%d: push '%s'\n", a->no, a->subno, iobuf_desc (a, desc)); print_chain (a); } /* now we can initialize the new function if we have one */ if (a->filter && (rc = a->filter (a->filter_ov, IOBUFCTRL_INIT, a->chain, NULL, &dummy_len))) log_error ("IOBUFCTRL_INIT failed: %s\n", gpg_strerror (rc)); return rc; } /**************** * Remove an i/o filter. */ int iobuf_pop_filter (iobuf_t a, int (*f) (void *opaque, int control, iobuf_t chain, byte * buf, size_t * len), void *ov) { iobuf_t b; size_t dummy_len = 0; int rc = 0; byte desc[MAX_IOBUF_DESC]; if (DBG_IOBUF) log_debug ("iobuf-%d.%d: pop '%s'\n", a->no, a->subno, iobuf_desc (a, desc)); if (a->use == IOBUF_INPUT_TEMP || a->use == IOBUF_OUTPUT_TEMP) { /* This should be the last filter in the pipeline. */ assert (! a->chain); return 0; } if (!a->filter) { /* this is simple */ b = a->chain; assert (b); xfree (a->d.buf); xfree (a->real_fname); memcpy (a, b, sizeof *a); xfree (b); return 0; } for (b = a; b; b = b->chain) if (b->filter == f && (!ov || b->filter_ov == ov)) break; if (!b) log_bug ("iobuf_pop_filter(): filter function not found\n"); /* flush this stream if it is an output stream */ if (a->use == IOBUF_OUTPUT && (rc = filter_flush (b))) { log_error ("filter_flush failed in iobuf_pop_filter: %s\n", gpg_strerror (rc)); return rc; } /* and tell the filter to free it self */ if (b->filter && (rc = b->filter (b->filter_ov, IOBUFCTRL_FREE, b->chain, NULL, &dummy_len))) { log_error ("IOBUFCTRL_FREE failed: %s\n", gpg_strerror (rc)); return rc; } if (b->filter_ov && b->filter_ov_owner) { xfree (b->filter_ov); b->filter_ov = NULL; } /* and see how to remove it */ if (a == b && !b->chain) log_bug ("can't remove the last filter from the chain\n"); else if (a == b) { /* remove the first iobuf from the chain */ /* everything from b is copied to a. This is save because * a flush has been done on the to be removed entry */ b = a->chain; xfree (a->d.buf); xfree (a->real_fname); memcpy (a, b, sizeof *a); xfree (b); if (DBG_IOBUF) log_debug ("iobuf-%d.%d: popped filter\n", a->no, a->subno); } else if (!b->chain) { /* remove the last iobuf from the chain */ log_bug ("Ohh jeee, trying to remove a head filter\n"); } else { /* remove an intermediate iobuf from the chain */ log_bug ("Ohh jeee, trying to remove an intermediate filter\n"); } return rc; } /**************** * read underflow: read at least one byte into the buffer and return * the first byte or -1 on EOF. */ static int underflow (iobuf_t a, int clear_pending_eof) { return underflow_target (a, clear_pending_eof, 1); } /**************** * read underflow: read TARGET bytes into the buffer and return * the first byte or -1 on EOF. */ static int underflow_target (iobuf_t a, int clear_pending_eof, size_t target) { size_t len; int rc; if (DBG_IOBUF) log_debug ("iobuf-%d.%d: underflow: buffer size: %d; still buffered: %d => space for %d bytes\n", a->no, a->subno, (int) a->d.size, (int) (a->d.len - a->d.start), (int) (a->d.size - (a->d.len - a->d.start))); if (a->use == IOBUF_INPUT_TEMP) /* By definition, there isn't more data to read into the buffer. */ return -1; assert (a->use == IOBUF_INPUT); /* If there is still some buffered data, then move it to the start of the buffer and try to fill the end of the buffer. (This is useful if we are called from iobuf_peek().) */ assert (a->d.start <= a->d.len); a->d.len -= a->d.start; memmove (a->d.buf, &a->d.buf[a->d.start], a->d.len); a->d.start = 0; if (a->d.len < target && a->filter_eof) /* The last time we tried to read from this filter, we got an EOF. We couldn't return the EOF, because there was buffered data. Since there is no longer any buffered data, return the error. */ { if (DBG_IOBUF) log_debug ("iobuf-%d.%d: underflow: eof (pending eof)\n", a->no, a->subno); if (! clear_pending_eof) return -1; if (a->chain) /* A filter follows this one. Free this filter. */ { iobuf_t b = a->chain; if (DBG_IOBUF) log_debug ("iobuf-%d.%d: filter popped (pending EOF returned)\n", a->no, a->subno); xfree (a->d.buf); xfree (a->real_fname); memcpy (a, b, sizeof *a); xfree (b); print_chain (a); } else a->filter_eof = 0; /* for the top level filter */ return -1; /* return one(!) EOF */ } if (a->d.len == 0 && a->error) /* The last time we tried to read from this filter, we got an error. We couldn't return the error, because there was buffered data. Since there is no longer any buffered data, return the error. */ { if (DBG_IOBUF) log_debug ("iobuf-%d.%d: pending error (%s) returned\n", a->no, a->subno, gpg_strerror (a->error)); return -1; } if (a->filter && ! a->filter_eof && ! a->error) /* We have a filter function and the last time we tried to read we didn't get an EOF or an error. Try to fill the buffer. */ { /* Be careful to account for any buffered data. */ len = a->d.size - a->d.len; if (DBG_IOBUF) log_debug ("iobuf-%d.%d: underflow: A->FILTER (%lu bytes)\n", a->no, a->subno, (ulong) len); if (len == 0) /* There is no space for more data. Don't bother calling A->FILTER. */ rc = 0; else rc = a->filter (a->filter_ov, IOBUFCTRL_UNDERFLOW, a->chain, &a->d.buf[a->d.len], &len); a->d.len += len; if (DBG_IOBUF) log_debug ("iobuf-%d.%d: A->FILTER() returned rc=%d (%s), read %lu bytes\n", a->no, a->subno, rc, rc == 0 ? "ok" : rc == -1 ? "EOF" : gpg_strerror (rc), (ulong) len); /* if( a->no == 1 ) */ /* log_hexdump (" data:", a->d.buf, len); */ if (rc == -1) /* EOF. */ { size_t dummy_len = 0; /* Tell the filter to free itself */ if ((rc = a->filter (a->filter_ov, IOBUFCTRL_FREE, a->chain, NULL, &dummy_len))) log_error ("IOBUFCTRL_FREE failed: %s\n", gpg_strerror (rc)); /* Free everything except for the internal buffer. */ if (a->filter_ov && a->filter_ov_owner) xfree (a->filter_ov); a->filter_ov = NULL; a->filter = NULL; a->filter_eof = 1; if (clear_pending_eof && a->d.len == 0 && a->chain) /* We don't need to keep this filter around at all: - we got an EOF - we have no buffered data - a filter follows this one. Unlink this filter. */ { iobuf_t b = a->chain; if (DBG_IOBUF) log_debug ("iobuf-%d.%d: pop in underflow (nothing buffered, got EOF)\n", a->no, a->subno); xfree (a->d.buf); xfree (a->real_fname); memcpy (a, b, sizeof *a); xfree (b); print_chain (a); return -1; } else if (a->d.len == 0) /* We can't unlink this filter (it is the only one in the pipeline), but we can immediately return EOF. */ return -1; } else if (rc) /* Record the error. */ { a->error = rc; if (a->d.len == 0) /* There is no buffered data. Immediately return EOF. */ return -1; } } assert (a->d.start <= a->d.len); if (a->d.start < a->d.len) return a->d.buf[a->d.start++]; /* EOF. */ return -1; } static int filter_flush (iobuf_t a) { size_t len; int rc; if (a->use == IOBUF_OUTPUT_TEMP) { /* increase the temp buffer */ size_t newsize = a->d.size + iobuf_buffer_size; if (DBG_IOBUF) log_debug ("increasing temp iobuf from %lu to %lu\n", (ulong) a->d.size, (ulong) newsize); a->d.buf = xrealloc (a->d.buf, newsize); a->d.size = newsize; return 0; } else if (a->use != IOBUF_OUTPUT) log_bug ("flush on non-output iobuf\n"); else if (!a->filter) log_bug ("filter_flush: no filter\n"); len = a->d.len; rc = a->filter (a->filter_ov, IOBUFCTRL_FLUSH, a->chain, a->d.buf, &len); if (!rc && len != a->d.len) { log_info ("filter_flush did not write all!\n"); rc = GPG_ERR_INTERNAL; } else if (rc) a->error = rc; a->d.len = 0; return rc; } int iobuf_readbyte (iobuf_t a) { int c; if (a->use == IOBUF_OUTPUT || a->use == IOBUF_OUTPUT_TEMP) { log_bug ("iobuf_readbyte called on a non-INPUT pipeline!\n"); return -1; } assert (a->d.start <= a->d.len); if (a->nlimit && a->nbytes >= a->nlimit) return -1; /* forced EOF */ if (a->d.start < a->d.len) { c = a->d.buf[a->d.start++]; } else if ((c = underflow (a, 1)) == -1) return -1; /* EOF */ assert (a->d.start <= a->d.len); /* Note: if underflow doesn't return EOF, then it returns the first byte that was read and advances a->d.start appropriately. */ a->nbytes++; return c; } int iobuf_read (iobuf_t a, void *buffer, unsigned int buflen) { unsigned char *buf = (unsigned char *)buffer; int c, n; if (a->use == IOBUF_OUTPUT || a->use == IOBUF_OUTPUT_TEMP) { log_bug ("iobuf_read called on a non-INPUT pipeline!\n"); return -1; } if (a->nlimit) { /* Handle special cases. */ for (n = 0; n < buflen; n++) { if ((c = iobuf_readbyte (a)) == -1) { if (!n) return -1; /* eof */ break; } if (buf) { *buf = c; buf++; } } return n; } n = 0; do { if (n < buflen && a->d.start < a->d.len) /* Drain the buffer. */ { unsigned size = a->d.len - a->d.start; if (size > buflen - n) size = buflen - n; if (buf) memcpy (buf, a->d.buf + a->d.start, size); n += size; a->d.start += size; if (buf) buf += size; } if (n < buflen) /* Draining the internal buffer didn't fill BUFFER. Call underflow to read more data into the filter's internal buffer. */ { if ((c = underflow (a, 1)) == -1) /* EOF. If we managed to read something, don't return EOF now. */ { a->nbytes += n; return n ? n : -1 /*EOF*/; } if (buf) *buf++ = c; n++; } } while (n < buflen); a->nbytes += n; return n; } int iobuf_peek (iobuf_t a, byte * buf, unsigned buflen) { int n = 0; assert (buflen > 0); assert (a->use == IOBUF_INPUT || a->use == IOBUF_INPUT_TEMP); if (buflen > a->d.size) /* We can't peek more than we can buffer. */ buflen = a->d.size; /* Try to fill the internal buffer with enough data to satisfy the request. */ while (buflen > a->d.len - a->d.start) { if (underflow_target (a, 0, buflen) == -1) /* EOF. We can't read any more. */ break; /* Underflow consumes the first character (it's the return value). unget() it by resetting the "file position". */ assert (a->d.start == 1); a->d.start = 0; } n = a->d.len - a->d.start; if (n > buflen) n = buflen; if (n == 0) /* EOF. */ return -1; memcpy (buf, &a->d.buf[a->d.start], n); return n; } int iobuf_writebyte (iobuf_t a, unsigned int c) { int rc; if (a->use == IOBUF_INPUT || a->use == IOBUF_INPUT_TEMP) { log_bug ("iobuf_writebyte called on an input pipeline!\n"); return -1; } if (a->d.len == a->d.size) if ((rc=filter_flush (a))) return rc; assert (a->d.len < a->d.size); a->d.buf[a->d.len++] = c; return 0; } int iobuf_write (iobuf_t a, const void *buffer, unsigned int buflen) { const unsigned char *buf = (const unsigned char *)buffer; int rc; if (a->use == IOBUF_INPUT || a->use == IOBUF_INPUT_TEMP) { log_bug ("iobuf_write called on an input pipeline!\n"); return -1; } do { if (buflen && a->d.len < a->d.size) { unsigned size = a->d.size - a->d.len; if (size > buflen) size = buflen; memcpy (a->d.buf + a->d.len, buf, size); buflen -= size; buf += size; a->d.len += size; } if (buflen) { rc = filter_flush (a); if (rc) return rc; } } while (buflen); return 0; } int iobuf_writestr (iobuf_t a, const char *buf) { if (a->use == IOBUF_INPUT || a->use == IOBUF_INPUT_TEMP) { log_bug ("iobuf_writestr called on an input pipeline!\n"); return -1; } return iobuf_write (a, buf, strlen (buf)); } int iobuf_write_temp (iobuf_t dest, iobuf_t source) { assert (source->use == IOBUF_OUTPUT || source->use == IOBUF_OUTPUT_TEMP); assert (dest->use == IOBUF_OUTPUT || dest->use == IOBUF_OUTPUT_TEMP); iobuf_flush_temp (source); return iobuf_write (dest, source->d.buf, source->d.len); } size_t iobuf_temp_to_buffer (iobuf_t a, byte * buffer, size_t buflen) { byte desc[MAX_IOBUF_DESC]; size_t n; while (1) { int rc = filter_flush (a); if (rc) log_bug ("Flushing iobuf %d.%d (%s) from iobuf_temp_to_buffer failed. Ignoring.\n", a->no, a->subno, iobuf_desc (a, desc)); if (! a->chain) break; a = a->chain; } n = a->d.len; if (n > buflen) n = buflen; memcpy (buffer, a->d.buf, n); return n; } /* Copies the data from the input iobuf SOURCE to the output iobuf DEST until either an error is encountered or EOF is reached. Returns the number of bytes copies. */ size_t iobuf_copy (iobuf_t dest, iobuf_t source) { char *temp; /* Use a 32 KB buffer. */ const size_t temp_size = 32 * 1024; size_t nread; size_t nwrote = 0; size_t max_read = 0; int err; assert (source->use == IOBUF_INPUT || source->use == IOBUF_INPUT_TEMP); assert (dest->use == IOBUF_OUTPUT || source->use == IOBUF_OUTPUT_TEMP); if (iobuf_error (dest)) return -1; temp = xmalloc (temp_size); while (1) { nread = iobuf_read (source, temp, temp_size); if (nread == -1) /* EOF. */ break; if (nread > max_read) max_read = nread; err = iobuf_write (dest, temp, nread); if (err) break; nwrote += nread; } /* Burn the buffer. */ if (max_read) wipememory (temp, max_read); xfree (temp); return nwrote; } void iobuf_flush_temp (iobuf_t temp) { if (temp->use == IOBUF_INPUT || temp->use == IOBUF_INPUT_TEMP) log_bug ("iobuf_flush_temp called on an input pipeline!\n"); while (temp->chain) iobuf_pop_filter (temp, temp->filter, NULL); } void iobuf_set_limit (iobuf_t a, off_t nlimit) { if (nlimit) a->nofast = 1; else a->nofast = 0; a->nlimit = nlimit; a->ntotal += a->nbytes; a->nbytes = 0; } off_t iobuf_get_filelength (iobuf_t a, int *overflow) { if (overflow) *overflow = 0; /* Hmmm: file_filter may have already been removed */ for ( ; a->chain; a = a->chain ) ; if (a->filter != file_filter) return 0; { file_filter_ctx_t *b = a->filter_ov; gnupg_fd_t fp = b->fp; #if defined(HAVE_W32_SYSTEM) ulong size; static int (* __stdcall get_file_size_ex) (void *handle, LARGE_INTEGER *r_size); static int get_file_size_ex_initialized; if (!get_file_size_ex_initialized) { void *handle; handle = dlopen ("kernel32.dll", RTLD_LAZY); if (handle) { get_file_size_ex = dlsym (handle, "GetFileSizeEx"); if (!get_file_size_ex) dlclose (handle); } get_file_size_ex_initialized = 1; } if (get_file_size_ex) { /* This is a newer system with GetFileSizeEx; we use this then because it seem that GetFileSize won't return a proper error in case a file is larger than 4GB. */ LARGE_INTEGER exsize; if (get_file_size_ex (fp, &exsize)) { if (!exsize.u.HighPart) return exsize.u.LowPart; if (overflow) *overflow = 1; return 0; } } else { if ((size=GetFileSize (fp, NULL)) != 0xffffffff) return size; } log_error ("GetFileSize for handle %p failed: %s\n", fp, w32_strerror (-1)); #else /*!HAVE_W32_SYSTEM*/ { struct stat st; if ( !fstat (FD2INT (fp), &st) ) return st.st_size; log_error("fstat() failed: %s\n", strerror(errno) ); } #endif /*!HAVE_W32_SYSTEM*/ } return 0; } int iobuf_get_fd (iobuf_t a) { for (; a->chain; a = a->chain) ; if (a->filter != file_filter) return -1; { file_filter_ctx_t *b = a->filter_ov; gnupg_fd_t fp = b->fp; return FD2INT (fp); } } off_t iobuf_tell (iobuf_t a) { return a->ntotal + a->nbytes; } #if !defined(HAVE_FSEEKO) && !defined(fseeko) #ifdef HAVE_LIMITS_H # include #endif #ifndef LONG_MAX # define LONG_MAX ((long) ((unsigned long) -1 >> 1)) #endif #ifndef LONG_MIN # define LONG_MIN (-1 - LONG_MAX) #endif /**************** * A substitute for fseeko, for hosts that don't have it. */ static int fseeko (FILE * stream, off_t newpos, int whence) { while (newpos != (long) newpos) { long pos = newpos < 0 ? LONG_MIN : LONG_MAX; if (fseek (stream, pos, whence) != 0) return -1; newpos -= pos; whence = SEEK_CUR; } return fseek (stream, (long) newpos, whence); } #endif int iobuf_seek (iobuf_t a, off_t newpos) { file_filter_ctx_t *b = NULL; if (a->use == IOBUF_OUTPUT || a->use == IOBUF_INPUT) { /* Find the last filter in the pipeline. */ for (; a->chain; a = a->chain) ; if (a->filter != file_filter) return -1; b = a->filter_ov; #ifdef HAVE_W32_SYSTEM if (SetFilePointer (b->fp, newpos, NULL, FILE_BEGIN) == 0xffffffff) { log_error ("SetFilePointer failed on handle %p: ec=%d\n", b->fp, (int) GetLastError ()); return -1; } #else if (lseek (b->fp, newpos, SEEK_SET) == (off_t) - 1) { log_error ("can't lseek: %s\n", strerror (errno)); return -1; } #endif /* Discard the buffer it is not a temp stream. */ a->d.len = 0; } a->d.start = 0; a->nbytes = 0; a->nlimit = 0; a->nofast = 0; a->ntotal = newpos; a->error = 0; /* It is impossible for A->CHAIN to be non-NULL. If A is an INPUT or OUTPUT buffer, then we find the last filter, which is defined as A->CHAIN being NULL. If A is a TEMP filter, then A must be the only filter in the pipe: when iobuf_push_filter adds a filter to the front of a pipeline, it sets the new filter to be an OUTPUT filter if the pipeline is an OUTPUT or TEMP pipeline and to be an INPUT filter if the pipeline is an INPUT pipeline. Thus, only the last filter in a TEMP pipeline can be a */ /* remove filters, but the last */ if (a->chain) log_debug ("iobuf_pop_filter called in iobuf_seek - please report\n"); while (a->chain) iobuf_pop_filter (a, a->filter, NULL); return 0; } const char * iobuf_get_real_fname (iobuf_t a) { if (a->real_fname) return a->real_fname; /* the old solution */ for (; a; a = a->chain) if (!a->chain && a->filter == file_filter) { file_filter_ctx_t *b = a->filter_ov; return b->print_only_name ? NULL : b->fname; } return NULL; } const char * iobuf_get_fname (iobuf_t a) { for (; a; a = a->chain) if (!a->chain && a->filter == file_filter) { file_filter_ctx_t *b = a->filter_ov; return b->fname; } return NULL; } const char * iobuf_get_fname_nonnull (iobuf_t a) { const char *fname; fname = iobuf_get_fname (a); return fname? fname : "[?]"; } /**************** * Enable or disable partial body length mode (RFC 4880 4.2.2.4). * * If LEN is 0, this disables partial block mode by popping the * partial body length filter, which must be the most recently * added filter. * * If LEN is non-zero, it pushes a partial body length filter. If * this is a read filter, LEN must be the length byte from the first * chunk and A should be position just after this first partial body * length header. */ void iobuf_set_partial_body_length_mode (iobuf_t a, size_t len) { if (!len) /* Disable partial body length mode. */ { if (a->use == IOBUF_INPUT) log_debug ("iobuf_pop_filter called in set_partial_block_mode" " - please report\n"); log_assert (a->filter == block_filter); iobuf_pop_filter (a, block_filter, NULL); } else /* Enabled partial body length mode. */ { block_filter_ctx_t *ctx = xcalloc (1, sizeof *ctx); ctx->use = a->use; ctx->partial = 1; ctx->size = 0; ctx->first_c = len; iobuf_push_filter (a, block_filter, ctx); } } unsigned int iobuf_read_line (iobuf_t a, byte ** addr_of_buffer, unsigned *length_of_buffer, unsigned *max_length) { int c; char *buffer = (char *)*addr_of_buffer; unsigned length = *length_of_buffer; unsigned nbytes = 0; unsigned maxlen = *max_length; char *p; /* The code assumes that we have space for at least a newline and a NUL character in the buffer. This requires at least 2 bytes. We don't complicate the code by handling the stupid corner case, but simply assert that it can't happen. */ assert (!buffer || length >= 2 || maxlen >= 2); if (!buffer || length <= 1) /* must allocate a new buffer */ { length = 256 <= maxlen ? 256 : maxlen; buffer = xrealloc (buffer, length); *addr_of_buffer = (unsigned char *)buffer; *length_of_buffer = length; } p = buffer; while (1) { if (!a->nofast && a->d.start < a->d.len && nbytes < length - 1) /* Fast path for finding '\n' by using standard C library's optimized memchr. */ { unsigned size = a->d.len - a->d.start; byte *newline_pos; if (size > length - 1 - nbytes) size = length - 1 - nbytes; newline_pos = memchr (a->d.buf + a->d.start, '\n', size); if (newline_pos) { /* Found newline, copy buffer and return. */ size = (newline_pos - (a->d.buf + a->d.start)) + 1; memcpy (p, a->d.buf + a->d.start, size); p += size; nbytes += size; a->d.start += size; a->nbytes += size; break; } else { /* No newline, copy buffer and continue. */ memcpy (p, a->d.buf + a->d.start, size); p += size; nbytes += size; a->d.start += size; a->nbytes += size; } } else { c = iobuf_readbyte (a); if (c == -1) break; *p++ = c; nbytes++; if (c == '\n') break; } if (nbytes == length - 1) /* We don't have enough space to add a \n and a \0. Increase the buffer size. */ { if (length == maxlen) /* We reached the buffer's size limit! */ { /* Skip the rest of the line. */ while ((c = iobuf_get (a)) != -1 && c != '\n') ; /* p is pointing at the last byte in the buffer. We always terminate the line with "\n\0" so overwrite the previous byte with a \n. */ assert (p > buffer); p[-1] = '\n'; /* Indicate truncation. */ *max_length = 0; break; } length += length < 1024 ? 256 : 1024; if (length > maxlen) length = maxlen; buffer = xrealloc (buffer, length); *addr_of_buffer = (unsigned char *)buffer; *length_of_buffer = length; p = buffer + nbytes; } } /* Add the terminating NUL. */ *p = 0; /* Return the number of characters written to the buffer including the newline, but not including the terminating NUL. */ return nbytes; } static int translate_file_handle (int fd, int for_write) { #if defined(HAVE_W32CE_SYSTEM) /* This is called only with one of the special filenames. Under W32CE the FD here is not a file descriptor but a rendezvous id, thus we need to finish the pipe first. */ fd = _assuan_w32ce_finish_pipe (fd, for_write); #elif defined(HAVE_W32_SYSTEM) { int x; (void)for_write; if (fd == 0) x = (int) GetStdHandle (STD_INPUT_HANDLE); else if (fd == 1) x = (int) GetStdHandle (STD_OUTPUT_HANDLE); else if (fd == 2) x = (int) GetStdHandle (STD_ERROR_HANDLE); else x = fd; if (x == -1) log_debug ("GetStdHandle(%d) failed: ec=%d\n", fd, (int) GetLastError ()); fd = x; } #else (void)for_write; #endif return fd; } void iobuf_skip_rest (iobuf_t a, unsigned long n, int partial) { if ( partial ) { for (;;) { if (a->nofast || a->d.start >= a->d.len) { if (iobuf_readbyte (a) == -1) { break; } } else { unsigned long count = a->d.len - a->d.start; a->nbytes += count; a->d.start = a->d.len; } } } else { unsigned long remaining = n; while (remaining > 0) { if (a->nofast || a->d.start >= a->d.len) { if (iobuf_readbyte (a) == -1) { break; } --remaining; } else { unsigned long count = a->d.len - a->d.start; if (count > remaining) { count = remaining; } a->nbytes += count; a->d.start += count; remaining -= count; } } } } diff --git a/common/sysutils.c b/common/sysutils.c index 6738da108..bfb5d7dd8 100644 --- a/common/sysutils.c +++ b/common/sysutils.c @@ -1,1466 +1,1502 @@ /* sysutils.c - system helpers * Copyright (C) 1991-2001, 2003-2004, * 2006-2008 Free Software Foundation, Inc. * Copyright (C) 2013-2016 Werner Koch * * This file is part of GnuPG. * * This file is free software; you can redistribute it and/or modify * it under the terms of either * * - the GNU Lesser General Public License as published by the Free * Software Foundation; either version 3 of the License, or (at * your option) any later version. * * or * * - the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at * your option) any later version. * * or both in parallel, as here. * * This file is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #include #ifdef WITHOUT_NPTH /* Give the Makefile a chance to build without Pth. */ # undef HAVE_NPTH # undef USE_NPTH #endif #include #include #include #include #include #include #include #include #ifdef HAVE_STAT # include #endif #if defined(__linux__) && defined(__alpha__) && __GLIBC__ < 2 # include # include #endif #include #ifdef HAVE_SETRLIMIT # include # include #endif #ifdef HAVE_PWD_H # include # include #endif /*HAVE_PWD_H*/ #ifdef HAVE_W32_SYSTEM # if WINVER < 0x0500 # define WINVER 0x0500 /* Required for AllowSetForegroundWindow. */ # endif # ifdef HAVE_WINSOCK2_H # include # endif # include #else /*!HAVE_W32_SYSTEM*/ # include # include #endif #ifdef HAVE_INOTIFY_INIT # include #endif /*HAVE_INOTIFY_INIT*/ #ifdef HAVE_NPTH # include #endif #include #include #include "util.h" #include "i18n.h" #include "sysutils.h" #define tohex(n) ((n) < 10 ? ((n) + '0') : (((n) - 10) + 'A')) /* Flag to tell whether special file names are enabled. See gpg.c for * an explanation of these file names. */ static int allow_special_filenames; #ifdef HAVE_W32_SYSTEM /* State of gnupg_inhibit_set_foregound_window. */ static int inhibit_set_foregound_window; #endif static GPGRT_INLINE gpg_error_t my_error_from_syserror (void) { return gpg_err_make (default_errsource, gpg_err_code_from_syserror ()); } static GPGRT_INLINE gpg_error_t my_error (int e) { return gpg_err_make (default_errsource, (e)); } #if defined(__linux__) && defined(__alpha__) && __GLIBC__ < 2 #warning using trap_unaligned static int setsysinfo(unsigned long op, void *buffer, unsigned long size, int *start, void *arg, unsigned long flag) { return syscall(__NR_osf_setsysinfo, op, buffer, size, start, arg, flag); } void trap_unaligned(void) { unsigned int buf[2]; buf[0] = SSIN_UACPROC; buf[1] = UAC_SIGBUS | UAC_NOPRINT; setsysinfo(SSI_NVPAIRS, buf, 1, 0, 0, 0); } #else void trap_unaligned(void) { /* dummy */ } #endif int disable_core_dumps (void) { #ifdef HAVE_DOSISH_SYSTEM return 0; #else # ifdef HAVE_SETRLIMIT struct rlimit limit; /* We only set the current limit unless we were not able to retrieve the old value. */ if (getrlimit (RLIMIT_CORE, &limit)) limit.rlim_max = 0; limit.rlim_cur = 0; if( !setrlimit (RLIMIT_CORE, &limit) ) return 0; if( errno != EINVAL && errno != ENOSYS ) log_fatal (_("can't disable core dumps: %s\n"), strerror(errno) ); #endif return 1; #endif } int enable_core_dumps (void) { #ifdef HAVE_DOSISH_SYSTEM return 0; #else # ifdef HAVE_SETRLIMIT struct rlimit limit; if (getrlimit (RLIMIT_CORE, &limit)) return 1; limit.rlim_cur = limit.rlim_max; setrlimit (RLIMIT_CORE, &limit); return 1; /* We always return true because this function is merely a debugging aid. */ # endif return 1; #endif } +#ifdef HAVE_W32_SYSTEM +static int +any8bitchar (const char *string) +{ + if (string) + for ( ; *string; string++) + if ((*string & 0x80)) + return 1; + return 0; +} +#endif /*HAVE_W32_SYSTEM*/ + /* Allow the use of special "-&nnn" style file names. */ void enable_special_filenames (void) { allow_special_filenames = 1; } /* Return a string which is used as a kind of process ID. */ const byte * get_session_marker (size_t *rlen) { static byte marker[SIZEOF_UNSIGNED_LONG*2]; static int initialized; if (!initialized) { gcry_create_nonce (marker, sizeof marker); initialized = 1; } *rlen = sizeof (marker); return marker; } /* Return a random number in an unsigned int. */ unsigned int get_uint_nonce (void) { unsigned int value; gcry_create_nonce (&value, sizeof value); return value; } #if 0 /* not yet needed - Note that this will require inclusion of cmacros.am in Makefile.am */ int check_permissions(const char *path,int extension,int checkonly) { #if defined(HAVE_STAT) && !defined(HAVE_DOSISH_SYSTEM) char *tmppath; struct stat statbuf; int ret=1; int isdir=0; if(opt.no_perm_warn) return 0; if(extension && path[0]!=DIRSEP_C) { if(strchr(path,DIRSEP_C)) tmppath=make_filename(path,NULL); else tmppath=make_filename(GNUPG_LIBDIR,path,NULL); } else tmppath=m_strdup(path); /* It's okay if the file doesn't exist */ if(stat(tmppath,&statbuf)!=0) { ret=0; goto end; } isdir=S_ISDIR(statbuf.st_mode); /* Per-user files must be owned by the user. Extensions must be owned by the user or root. */ if((!extension && statbuf.st_uid != getuid()) || (extension && statbuf.st_uid!=0 && statbuf.st_uid!=getuid())) { if(!checkonly) log_info(_("Warning: unsafe ownership on %s \"%s\"\n"), isdir?"directory":extension?"extension":"file",path); goto end; } /* This works for both directories and files - basically, we don't care what the owner permissions are, so long as the group and other permissions are 0 for per-user files, and non-writable for extensions. */ if((extension && (statbuf.st_mode & (S_IWGRP|S_IWOTH)) !=0) || (!extension && (statbuf.st_mode & (S_IRWXG|S_IRWXO)) != 0)) { char *dir; /* However, if the directory the directory/file is in is owned by the user and is 700, then this is not a problem. Theoretically, we could walk this test up to the root directory /, but for the sake of sanity, I'm stopping at one level down. */ dir= make_dirname (tmppath); if(stat(dir,&statbuf)==0 && statbuf.st_uid==getuid() && S_ISDIR(statbuf.st_mode) && (statbuf.st_mode & (S_IRWXG|S_IRWXO))==0) { xfree (dir); ret=0; goto end; } m_free(dir); if(!checkonly) log_info(_("Warning: unsafe permissions on %s \"%s\"\n"), isdir?"directory":extension?"extension":"file",path); goto end; } ret=0; end: m_free(tmppath); return ret; #endif /* HAVE_STAT && !HAVE_DOSISH_SYSTEM */ return 0; } #endif /* Wrapper around the usual sleep function. This one won't wake up before the sleep time has really elapsed. When build with Pth it merely calls pth_sleep and thus suspends only the current thread. */ void gnupg_sleep (unsigned int seconds) { #ifdef USE_NPTH npth_sleep (seconds); #else /* Fixme: make sure that a sleep won't wake up to early. */ # ifdef HAVE_W32_SYSTEM Sleep (seconds*1000); # else sleep (seconds); # endif #endif } /* Wrapper around the platforms usleep function. This one won't wake * up before the sleep time has really elapsed. When build with nPth * it merely calls npth_usleep and thus suspends only the current * thread. */ void gnupg_usleep (unsigned int usecs) { #if defined(USE_NPTH) npth_usleep (usecs); #elif defined(HAVE_W32_SYSTEM) Sleep ((usecs + 999) / 1000); #elif defined(HAVE_NANOSLEEP) if (usecs) { struct timespec req; struct timespec rem; req.tv_sec = usecs / 1000000; req.tv_nsec = (usecs % 1000000) * 1000; while (nanosleep (&req, &rem) < 0 && errno == EINTR) req = rem; } #else /*Standard Unix*/ if (usecs) { struct timeval tv; tv.tv_sec = usecs / 1000000; tv.tv_usec = usecs % 1000000; select (0, NULL, NULL, NULL, &tv); } #endif } /* This function is a NOP for POSIX systems but required under Windows as the file handles as returned by OS calls (like CreateFile) are different from the libc file descriptors (like open). This function translates system file handles to libc file handles. FOR_WRITE gives the direction of the handle. */ int translate_sys2libc_fd (gnupg_fd_t fd, int for_write) { #if defined(HAVE_W32CE_SYSTEM) (void)for_write; return (int) fd; #elif defined(HAVE_W32_SYSTEM) int x; if (fd == GNUPG_INVALID_FD) return -1; /* Note that _open_osfhandle is currently defined to take and return a long. */ x = _open_osfhandle ((intptr_t)fd, for_write ? 1 : 0); if (x == -1) log_error ("failed to translate osfhandle %p\n", (void *) fd); return x; #else /*!HAVE_W32_SYSTEM */ (void)for_write; return fd; #endif } /* This is the same as translate_sys2libc_fd but takes an integer which is assumed to be such an system handle. On WindowsCE the passed FD is a rendezvous ID and the function finishes the pipe creation. */ int translate_sys2libc_fd_int (int fd, int for_write) { #if HAVE_W32CE_SYSTEM fd = (int) _assuan_w32ce_finish_pipe (fd, for_write); return translate_sys2libc_fd ((void*)fd, for_write); #elif HAVE_W32_SYSTEM if (fd <= 2) return fd; /* Do not do this for error, stdin, stdout, stderr. */ return translate_sys2libc_fd ((void*)fd, for_write); #else (void)for_write; return fd; #endif } /* Check whether FNAME has the form "-&nnnn", where N is a non-zero * number. Returns this number or -1 if it is not the case. If the * caller wants to use the file descriptor for writing FOR_WRITE shall * be set to 1. If NOTRANSLATE is set the Windows specific mapping is * not done. */ int check_special_filename (const char *fname, int for_write, int notranslate) { if (allow_special_filenames && fname && *fname == '-' && fname[1] == '&') { int i; fname += 2; for (i=0; digitp (fname+i); i++ ) ; if (!fname[i]) return notranslate? atoi (fname) /**/ : translate_sys2libc_fd_int (atoi (fname), for_write); } return -1; } /* Replacement for tmpfile(). This is required because the tmpfile function of Windows' runtime library is broken, insecure, ignores TMPDIR and so on. In addition we create a file with an inheritable handle. */ FILE * gnupg_tmpfile (void) { #ifdef HAVE_W32_SYSTEM int attempts, n; #ifdef HAVE_W32CE_SYSTEM wchar_t buffer[MAX_PATH+7+12+1]; # define mystrlen(a) wcslen (a) wchar_t *name, *p; #else char buffer[MAX_PATH+7+12+1]; # define mystrlen(a) strlen (a) char *name, *p; #endif HANDLE file; int pid = GetCurrentProcessId (); unsigned int value; int i; SECURITY_ATTRIBUTES sec_attr; memset (&sec_attr, 0, sizeof sec_attr ); sec_attr.nLength = sizeof sec_attr; sec_attr.bInheritHandle = TRUE; n = GetTempPath (MAX_PATH+1, buffer); if (!n || n > MAX_PATH || mystrlen (buffer) > MAX_PATH) { gpg_err_set_errno (ENOENT); return NULL; } p = buffer + mystrlen (buffer); #ifdef HAVE_W32CE_SYSTEM wcscpy (p, L"_gnupg"); p += 7; #else p = stpcpy (p, "_gnupg"); #endif /* We try to create the directory but don't care about an error as it may already exist and the CreateFile would throw an error anyway. */ CreateDirectory (buffer, NULL); *p++ = '\\'; name = p; for (attempts=0; attempts < 10; attempts++) { p = name; value = (GetTickCount () ^ ((pid<<16) & 0xffff0000)); for (i=0; i < 8; i++) { *p++ = tohex (((value >> 28) & 0x0f)); value <<= 4; } #ifdef HAVE_W32CE_SYSTEM wcscpy (p, L".tmp"); #else strcpy (p, ".tmp"); #endif file = CreateFile (buffer, GENERIC_READ | GENERIC_WRITE, 0, &sec_attr, CREATE_NEW, FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE, NULL); if (file != INVALID_HANDLE_VALUE) { FILE *fp; #ifdef HAVE_W32CE_SYSTEM int fd = (int)file; fp = _wfdopen (fd, L"w+b"); #else int fd = _open_osfhandle ((intptr_t)file, 0); if (fd == -1) { CloseHandle (file); return NULL; } fp = fdopen (fd, "w+b"); #endif if (!fp) { int save = errno; close (fd); gpg_err_set_errno (save); return NULL; } return fp; } Sleep (1); /* One ms as this is the granularity of GetTickCount. */ } gpg_err_set_errno (ENOENT); return NULL; #undef mystrlen #else /*!HAVE_W32_SYSTEM*/ return tmpfile (); #endif /*!HAVE_W32_SYSTEM*/ } /* Make sure that the standard file descriptors are opened. Obviously some folks close them before an exec and the next file we open will get one of them assigned and thus any output (i.e. diagnostics) end up in that file (e.g. the trustdb). Not actually a gpg problem as this will happen with almost all utilities when called in a wrong way. However we try to minimize the damage here and raise awareness of the problem. Must be called before we open any files! */ void gnupg_reopen_std (const char *pgmname) { #ifdef F_GETFD int did_stdin = 0; int did_stdout = 0; int did_stderr = 0; FILE *complain; if (fcntl (STDIN_FILENO, F_GETFD) == -1 && errno ==EBADF) { if (open ("/dev/null",O_RDONLY) == STDIN_FILENO) did_stdin = 1; else did_stdin = 2; } if (fcntl (STDOUT_FILENO, F_GETFD) == -1 && errno == EBADF) { if (open ("/dev/null",O_WRONLY) == STDOUT_FILENO) did_stdout = 1; else did_stdout = 2; } if (fcntl (STDERR_FILENO, F_GETFD)==-1 && errno==EBADF) { if (open ("/dev/null", O_WRONLY) == STDERR_FILENO) did_stderr = 1; else did_stderr = 2; } /* It's hard to log this sort of thing since the filehandle we would complain to may be closed... */ if (!did_stderr) complain = stderr; else if (!did_stdout) complain = stdout; else complain = NULL; if (complain) { if (did_stdin == 1) fprintf (complain, "%s: WARNING: standard input reopened\n", pgmname); if (did_stdout == 1) fprintf (complain, "%s: WARNING: standard output reopened\n", pgmname); if (did_stderr == 1) fprintf (complain, "%s: WARNING: standard error reopened\n", pgmname); if (did_stdin == 2 || did_stdout == 2 || did_stderr == 2) fprintf(complain,"%s: fatal: unable to reopen standard input," " output, or error\n", pgmname); } if (did_stdin == 2 || did_stdout == 2 || did_stderr == 2) exit (3); #else /* !F_GETFD */ (void)pgmname; #endif } /* Inhibit calls to AllowSetForegroundWindow on Windows. Calling this * with YES set to true calls to gnupg_allow_set_foregound_window are * shunted. */ void gnupg_inhibit_set_foregound_window (int yes) { #ifdef HAVE_W32_SYSTEM inhibit_set_foregound_window = yes; #else (void)yes; #endif } /* Hack required for Windows. */ void gnupg_allow_set_foregound_window (pid_t pid) { if (!pid) log_info ("%s called with invalid pid %lu\n", "gnupg_allow_set_foregound_window", (unsigned long)pid); #if defined(HAVE_W32_SYSTEM) && !defined(HAVE_W32CE_SYSTEM) else if (inhibit_set_foregound_window) ; else if (!AllowSetForegroundWindow ((pid_t)pid == (pid_t)(-1)?ASFW_ANY:pid)) log_info ("AllowSetForegroundWindow(%lu) failed: %s\n", (unsigned long)pid, w32_strerror (-1)); #endif } int gnupg_remove (const char *fname) { #ifdef HAVE_W32CE_SYSTEM int rc; wchar_t *wfname; wfname = utf8_to_wchar (fname); if (!wfname) rc = 0; else { rc = DeleteFile (wfname); xfree (wfname); } if (!rc) return -1; /* ERRNO is automagically provided by gpg-error.h. */ return 0; #else return remove (fname); #endif } /* Wrapper for rename(2) to handle Windows peculiarities. If * BLOCK_SIGNALS is not NULL and points to a variable set to true, all * signals will be blocked by calling gnupg_block_all_signals; the * caller needs to call gnupg_unblock_all_signals if that variable is * still set to true on return. */ gpg_error_t gnupg_rename_file (const char *oldname, const char *newname, int *block_signals) { gpg_error_t err = 0; if (block_signals && *block_signals) gnupg_block_all_signals (); #ifdef HAVE_DOSISH_SYSTEM { int wtime = 0; gnupg_remove (newname); again: if (rename (oldname, newname)) { if (GetLastError () == ERROR_SHARING_VIOLATION) { /* Another process has the file open. We do not use a * lock for read but instead we wait until the other * process has closed the file. This may take long but * that would also be the case with a dotlock approach for * read and write. Note that we don't need this on Unix * due to the inode concept. * * So let's wait until the rename has worked. The retry * intervals are 50, 100, 200, 400, 800, 50ms, ... */ if (!wtime || wtime >= 800) wtime = 50; else wtime *= 2; if (wtime >= 800) log_info (_("waiting for file '%s' to become accessible ...\n"), oldname); Sleep (wtime); goto again; } err = my_error_from_syserror (); } } #else /* Unix */ { #ifdef __riscos__ gnupg_remove (newname); #endif if (rename (oldname, newname) ) err = my_error_from_syserror (); } #endif /* Unix */ if (block_signals && *block_signals && err) { gnupg_unblock_all_signals (); *block_signals = 0; } if (err) log_error (_("renaming '%s' to '%s' failed: %s\n"), oldname, newname, gpg_strerror (err)); return err; } #ifndef HAVE_W32_SYSTEM static mode_t modestr_to_mode (const char *modestr, mode_t oldmode) { static struct { char letter; mode_t value; } table[] = { { '-', 0 }, { 'r', S_IRUSR }, { 'w', S_IWUSR }, { 'x', S_IXUSR }, { 'r', S_IRGRP }, { 'w', S_IWGRP }, { 'x', S_IXGRP }, { 'r', S_IROTH }, { 'w', S_IWOTH }, { 'x', S_IXOTH } }; int idx; mode_t mode = 0; /* For now we only support a string as used by ls(1) and no octal * numbers. The first character must be a dash. */ for (idx=0; idx < 10 && *modestr; idx++, modestr++) { if (*modestr == table[idx].letter) mode |= table[idx].value; else if (*modestr == '.') { if (!idx) ; /* Skip the dummy. */ else if ((oldmode & table[idx].value)) mode |= (oldmode & table[idx].value); else mode &= ~(oldmode & table[idx].value); } else if (*modestr != '-') break; } return mode; } #endif /* A wrapper around mkdir which takes a string for the mode argument. This makes it easier to handle the mode argument which is not defined on all systems. The format of the modestring is "-rwxrwxrwx" '-' is a don't care or not set. 'r', 'w', 'x' are read allowed, write allowed, execution allowed with the first group for the user, the second for the group and the third for all others. If the string is shorter than above the missing mode characters are meant to be not set. */ int gnupg_mkdir (const char *name, const char *modestr) { /* Note that gpgrt_mkdir also sets ERRNO in addition to returing an * gpg-error style error code. */ return gpgrt_mkdir (name, modestr); } /* A simple wrapper around chdir. NAME is expected to be utf8 * encoded. */ int gnupg_chdir (const char *name) { /* Note that gpgrt_chdir also sets ERRNO in addition to returning an * gpg-error style error code. */ return gpgrt_chdir (name); } /* A wrapper around chmod which takes a string for the mode argument. This makes it easier to handle the mode argument which is not defined on all systems. The format of the modestring is the same as for gnupg_mkdir with extra feature that a '.' keeps the original mode bit. */ int gnupg_chmod (const char *name, const char *modestr) { #ifdef HAVE_W32_SYSTEM (void)name; (void)modestr; return 0; #else mode_t oldmode; if (strchr (modestr, '.')) { /* Get the old mode so that a '.' can copy that bit. */ struct stat st; if (stat (name, &st)) return -1; oldmode = st.st_mode; } else oldmode = 0; return chmod (name, modestr_to_mode (modestr, oldmode)); #endif } /* Our version of mkdtemp. The API is identical to POSIX.1-2008 version. We do not use a system provided mkdtemp because we have a good RNG instantly available and this way we don't have diverging versions. */ char * gnupg_mkdtemp (char *tmpl) { /* A lower bound on the number of temporary files to attempt to generate. The maximum total number of temporary file names that can exist for a given template is 62**6 (5*36**3 for Windows). It should never be necessary to try all these combinations. Instead if a reasonable number of names is tried (we define reasonable as 62**3 or 5*36**3) fail to give the system administrator the chance to remove the problems. */ #ifdef HAVE_W32_SYSTEM static const char letters[] = "abcdefghijklmnopqrstuvwxyz0123456789"; # define NUMBER_OF_LETTERS 36 # define ATTEMPTS_MIN (5 * 36 * 36 * 36) #else static const char letters[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; # define NUMBER_OF_LETTERS 62 # define ATTEMPTS_MIN (62 * 62 * 62) #endif int len; char *XXXXXX; uint64_t value; unsigned int count; int save_errno = errno; /* The number of times to attempt to generate a temporary file. To conform to POSIX, this must be no smaller than TMP_MAX. */ #if ATTEMPTS_MIN < TMP_MAX unsigned int attempts = TMP_MAX; #else unsigned int attempts = ATTEMPTS_MIN; #endif len = strlen (tmpl); if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX")) { gpg_err_set_errno (EINVAL); return NULL; } /* This is where the Xs start. */ XXXXXX = &tmpl[len - 6]; /* Get a random start value. */ gcry_create_nonce (&value, sizeof value); /* Loop until a directory was created. */ for (count = 0; count < attempts; value += 7777, ++count) { uint64_t v = value; /* Fill in the random bits. */ XXXXXX[0] = letters[v % NUMBER_OF_LETTERS]; v /= NUMBER_OF_LETTERS; XXXXXX[1] = letters[v % NUMBER_OF_LETTERS]; v /= NUMBER_OF_LETTERS; XXXXXX[2] = letters[v % NUMBER_OF_LETTERS]; v /= NUMBER_OF_LETTERS; XXXXXX[3] = letters[v % NUMBER_OF_LETTERS]; v /= NUMBER_OF_LETTERS; XXXXXX[4] = letters[v % NUMBER_OF_LETTERS]; v /= NUMBER_OF_LETTERS; XXXXXX[5] = letters[v % NUMBER_OF_LETTERS]; if (!gnupg_mkdir (tmpl, "-rwx")) { gpg_err_set_errno (save_errno); return tmpl; } if (errno != EEXIST) return NULL; } /* We got out of the loop because we ran out of combinations to try. */ gpg_err_set_errno (EEXIST); return NULL; } int gnupg_setenv (const char *name, const char *value, int overwrite) { #ifdef HAVE_W32CE_SYSTEM (void)name; (void)value; (void)overwrite; return 0; #else /*!W32CE*/ # ifdef HAVE_W32_SYSTEM /* Windows maintains (at least) two sets of environment variables. One set can be accessed by GetEnvironmentVariable and SetEnvironmentVariable. This set is inherited by the children. The other set is maintained in the C runtime, and is accessed using getenv and putenv. We try to keep them in sync by modifying both sets. */ { int exists; char tmpbuf[10]; exists = GetEnvironmentVariable (name, tmpbuf, sizeof tmpbuf); if ((! exists || overwrite) && !SetEnvironmentVariable (name, value)) { gpg_err_set_errno (EINVAL); /* (Might also be ENOMEM.) */ return -1; } } # endif /*W32*/ # ifdef HAVE_SETENV return setenv (name, value, overwrite); # else /*!HAVE_SETENV*/ if (! getenv (name) || overwrite) { char *buf; (void)overwrite; if (!name || !value) { gpg_err_set_errno (EINVAL); return -1; } buf = strconcat (name, "=", value, NULL); if (!buf) return -1; # if __GNUC__ # warning no setenv - using putenv but leaking memory. # endif return putenv (buf); } return 0; # endif /*!HAVE_SETENV*/ #endif /*!W32CE*/ } int gnupg_unsetenv (const char *name) { #ifdef HAVE_W32CE_SYSTEM (void)name; return 0; #else /*!W32CE*/ # ifdef HAVE_W32_SYSTEM /* Windows maintains (at least) two sets of environment variables. One set can be accessed by GetEnvironmentVariable and SetEnvironmentVariable. This set is inherited by the children. The other set is maintained in the C runtime, and is accessed using getenv and putenv. We try to keep them in sync by modifying both sets. */ if (!SetEnvironmentVariable (name, NULL)) { gpg_err_set_errno (EINVAL); /* (Might also be ENOMEM.) */ return -1; } # endif /*W32*/ # ifdef HAVE_UNSETENV return unsetenv (name); # else /*!HAVE_UNSETENV*/ { char *buf; if (!name) { gpg_err_set_errno (EINVAL); return -1; } buf = xtrystrdup (name); if (!buf) return -1; # if __GNUC__ # warning no unsetenv - trying putenv but leaking memory. # endif return putenv (buf); } # endif /*!HAVE_UNSETENV*/ #endif /*!W32CE*/ } /* Return the current working directory as a malloced string. Return NULL and sets ERRNO on error. */ char * gnupg_getcwd (void) { return gpgrt_getcwd (); } /* A simple wrapper around access. NAME is expected to be utf8 * encoded. This function returns an error code and sets ERRNO. */ gpg_err_code_t gnupg_access (const char *name, int mode) { #if GPGRT_VERSION_NUMBER < 0x012800 /* 1.39 */ # ifdef HAVE_W32_SYSTEM wchar_t *wfname; wfname = utf8_to_wchar (fname); if (!wfname) ec = gpg_err_code_from_syserror (); else { ec = _waccess (wfname, mode)? gpg_err_code_from_syserror () : 0; xfree (wfname); } # else return access (name, mode)? gpg_err_code_from_syserror () : 0; # endif #else return gpgrt_access (name, mode); #endif } +/* A wrapper around open to handle Unicode file names under Windows. */ +int +gnupg_open (const char *name, int flags, unsigned int mode) +{ +#ifdef HAVE_W32_SYSTEM + if (any8bitchar (name)) + { + wchar_t *wname; + int ret; + + wname = utf8_to_wchar (name); + if (!wname) + return -1; + ret = _wopen (wname, flags, mode); + xfree (wname); + return ret; + } + else + return open (name, flags, mode); +#else + return open (name, flags, mode); +#endif +} + /* Try to set an envvar. Print only a notice on error. */ #ifndef HAVE_W32_SYSTEM static void try_set_envvar (const char *name, const char *value, int silent) { if (gnupg_setenv (name, value, 1)) if (!silent) log_info ("error setting envvar %s to '%s': %s\n", name, value, gpg_strerror (my_error_from_syserror ())); } #endif /*!HAVE_W32_SYSTEM*/ /* Switch to USER which is either a name or an UID. This is a nop * under Windows. Note that in general it is only possible to switch * to another user id if the process is running under root. if silent * is set no diagnostics are printed. */ gpg_error_t gnupg_chuid (const char *user, int silent) { #ifdef HAVE_W32_SYSTEM (void)user; /* Not implemented for Windows - ignore. */ (void)silent; return 0; #elif HAVE_PWD_H /* A proper Unix */ unsigned long ul; struct passwd *pw; struct stat st; char *endp; gpg_error_t err; gpg_err_set_errno (0); ul = strtoul (user, &endp, 10); if (errno || endp == user || *endp) pw = getpwnam (user); /* Not a number; assume USER is a name. */ else pw = getpwuid ((uid_t)ul); if (!pw) { if (!silent) log_error ("user '%s' not found\n", user); return my_error (GPG_ERR_NOT_FOUND); } /* Try to set some envvars even if we are already that user. */ if (!stat (pw->pw_dir, &st)) try_set_envvar ("HOME", pw->pw_dir, silent); try_set_envvar ("USER", pw->pw_name, silent); try_set_envvar ("LOGNAME", pw->pw_name, silent); #ifdef _AIX try_set_envvar ("LOGIN", pw->pw_name, silent); #endif if (getuid () == pw->pw_uid) return 0; /* We are already this user. */ /* If we need to switch set PATH to a standard value and make sure * GNUPGHOME is not set. */ try_set_envvar ("PATH", "/usr/local/bin:/usr/bin:/bin", silent); if (gnupg_unsetenv ("GNUPGHOME")) if (!silent) log_info ("error unsetting envvar %s: %s\n", "GNUPGHOME", gpg_strerror (gpg_error_from_syserror ())); if (initgroups (pw->pw_name, pw->pw_gid)) { err = my_error_from_syserror (); if (!silent) log_error ("error setting supplementary groups for '%s': %s\n", pw->pw_name, gpg_strerror (err)); return err; } if (setuid (pw->pw_uid)) { err = my_error_from_syserror (); log_error ("error switching to user '%s': %s\n", pw->pw_name, gpg_strerror (err)); return err; } return 0; #else /*!HAVE_PWD_H */ if (!silent) log_info ("system is missing passwd querying functions\n"); return my_error (GPG_ERR_NOT_IMPLEMENTED); #endif } #ifdef HAVE_W32CE_SYSTEM /* There is a isatty function declaration in cegcc but it does not make sense, thus we redefine it. */ int _gnupg_isatty (int fd) { (void)fd; return 0; } #endif #ifdef HAVE_W32CE_SYSTEM /* Replacement for getenv which takes care of the our use of getenv. The code is not thread safe but we expect it to work in all cases because it is called for the first time early enough. */ char * _gnupg_getenv (const char *name) { static int initialized; static char *assuan_debug; if (!initialized) { assuan_debug = read_w32_registry_string (NULL, "\\Software\\GNU\\libassuan", "debug"); initialized = 1; } if (!strcmp (name, "ASSUAN_DEBUG")) return assuan_debug; else return NULL; } #endif /*HAVE_W32CE_SYSTEM*/ #ifdef HAVE_W32_SYSTEM /* Return the user's security identifier from the current process. */ PSID w32_get_user_sid (void) { int okay = 0; HANDLE proc = NULL; HANDLE token = NULL; TOKEN_USER *user = NULL; PSID sid = NULL; DWORD tokenlen, sidlen; proc = OpenProcess (PROCESS_QUERY_INFORMATION, FALSE, GetCurrentProcessId()); if (!proc) goto leave; if (!OpenProcessToken (proc, TOKEN_QUERY, &token)) goto leave; if (!GetTokenInformation (token, TokenUser, NULL, 0, &tokenlen) && GetLastError() != ERROR_INSUFFICIENT_BUFFER) goto leave; user = xtrymalloc (tokenlen); if (!user) goto leave; if (!GetTokenInformation (token, TokenUser, user, tokenlen, &tokenlen)) goto leave; if (!IsValidSid (user->User.Sid)) goto leave; sidlen = GetLengthSid (user->User.Sid); sid = xtrymalloc (sidlen); if (!sid) goto leave; if (!CopySid (sidlen, sid, user->User.Sid)) goto leave; okay = 1; leave: xfree (user); if (token) CloseHandle (token); if (proc) CloseHandle (proc); if (!okay) { xfree (sid); sid = NULL; } return sid; } #endif /*HAVE_W32_SYSTEM*/ /* Support for inotify under Linux. */ /* Store a new inotify file handle for FNAME at R_FD or return an * error code. This file descriptor watch the removal of FNAME. */ gpg_error_t gnupg_inotify_watch_delete_self (int *r_fd, const char *fname) { #if HAVE_INOTIFY_INIT gpg_error_t err; int fd; *r_fd = -1; if (!fname) return my_error (GPG_ERR_INV_VALUE); fd = inotify_init (); if (fd == -1) return my_error_from_syserror (); if (inotify_add_watch (fd, fname, IN_DELETE_SELF) == -1) { err = my_error_from_syserror (); close (fd); return err; } *r_fd = fd; return 0; #else /*!HAVE_INOTIFY_INIT*/ (void)fname; *r_fd = -1; return my_error (GPG_ERR_NOT_SUPPORTED); #endif /*!HAVE_INOTIFY_INIT*/ } /* Store a new inotify file handle for SOCKET_NAME at R_FD or return * an error code. */ gpg_error_t gnupg_inotify_watch_socket (int *r_fd, const char *socket_name) { #if HAVE_INOTIFY_INIT gpg_error_t err; char *fname; int fd; char *p; *r_fd = -1; if (!socket_name) return my_error (GPG_ERR_INV_VALUE); fname = xtrystrdup (socket_name); if (!fname) return my_error_from_syserror (); fd = inotify_init (); if (fd == -1) { err = my_error_from_syserror (); xfree (fname); return err; } /* We need to watch the directory for the file because there won't * be an IN_DELETE_SELF for a socket file. To handle a removal of * the directory we also watch the directory itself. */ p = strrchr (fname, '/'); if (p) *p = 0; if (inotify_add_watch (fd, fname, (IN_DELETE|IN_DELETE_SELF|IN_EXCL_UNLINK)) == -1) { err = my_error_from_syserror (); close (fd); xfree (fname); return err; } xfree (fname); *r_fd = fd; return 0; #else /*!HAVE_INOTIFY_INIT*/ (void)socket_name; *r_fd = -1; return my_error (GPG_ERR_NOT_SUPPORTED); #endif /*!HAVE_INOTIFY_INIT*/ } /* Read an inotify event and return true if it matches NAME or if it * sees an IN_DELETE_SELF event for the directory of NAME. */ int gnupg_inotify_has_name (int fd, const char *name) { #if USE_NPTH && HAVE_INOTIFY_INIT #define BUFSIZE_FOR_INOTIFY (sizeof (struct inotify_event) + 255 + 1) union { struct inotify_event ev; char _buf[sizeof (struct inotify_event) + 255 + 1]; } buf; struct inotify_event *evp; int n; n = npth_read (fd, &buf, sizeof buf); /* log_debug ("notify read: n=%d\n", n); */ evp = &buf.ev; while (n >= sizeof (struct inotify_event)) { /* log_debug (" mask=%x len=%u name=(%s)\n", */ /* evp->mask, (unsigned int)evp->len, evp->len? evp->name:""); */ if ((evp->mask & IN_UNMOUNT)) { /* log_debug (" found (dir unmounted)\n"); */ return 3; /* Directory was unmounted. */ } if ((evp->mask & IN_DELETE_SELF)) { /* log_debug (" found (dir removed)\n"); */ return 2; /* Directory was removed. */ } if ((evp->mask & IN_DELETE)) { if (evp->len >= strlen (name) && !strcmp (evp->name, name)) { /* log_debug (" found (file removed)\n"); */ return 1; /* File was removed. */ } } n -= sizeof (*evp) + evp->len; evp = (struct inotify_event *)(void *) ((char *)evp + sizeof (*evp) + evp->len); } #else /*!(USE_NPTH && HAVE_INOTIFY_INIT)*/ (void)fd; (void)name; #endif /*!(USE_NPTH && HAVE_INOTIFY_INIT)*/ return 0; /* Not found. */ } /* Return a malloc'ed string that is the path to the passed * unix-domain socket (or return NULL if this is not a valid * unix-domain socket). We use a plain int here because it is only * used on Linux. * * FIXME: This function needs to be moved to libassuan. */ #ifndef HAVE_W32_SYSTEM char * gnupg_get_socket_name (int fd) { struct sockaddr_un un; socklen_t len = sizeof(un); char *name = NULL; if (getsockname (fd, (struct sockaddr*)&un, &len) != 0) log_error ("could not getsockname(%d): %s\n", fd, gpg_strerror (my_error_from_syserror ())); else if (un.sun_family != AF_UNIX) log_error ("file descriptor %d is not a unix-domain socket\n", fd); else if (len <= offsetof (struct sockaddr_un, sun_path)) log_error ("socket name not present for file descriptor %d\n", fd); else if (len > sizeof(un)) log_error ("socket name for file descriptor %d was truncated " "(passed %zu bytes, wanted %u)\n", fd, sizeof(un), len); else { size_t namelen = len - offsetof (struct sockaddr_un, sun_path); /* log_debug ("file descriptor %d has path %s (%zu octets)\n", fd, */ /* un.sun_path, namelen); */ name = xtrymalloc (namelen + 1); if (!name) log_error ("failed to allocate memory for name of fd %d: %s\n", fd, gpg_strerror (my_error_from_syserror ())); else { memcpy (name, un.sun_path, namelen); name[namelen] = 0; } } return name; } #endif /*!HAVE_W32_SYSTEM*/ /* Check whether FD is valid. */ int gnupg_fd_valid (int fd) { int d = dup (fd); if (d < 0) return 0; close (d); return 1; } diff --git a/common/sysutils.h b/common/sysutils.h index 12b45e47c..d088fe29f 100644 --- a/common/sysutils.h +++ b/common/sysutils.h @@ -1,93 +1,94 @@ /* sysutils.h - System utility functions for Gnupg * Copyright (C) 2002 Free Software Foundation, Inc. * * This file is part of GnuPG. * * This file is free software; you can redistribute it and/or modify * it under the terms of either * * - the GNU Lesser General Public License as published by the Free * Software Foundation; either version 3 of the License, or (at * your option) any later version. * * or * * - the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at * your option) any later version. * * or both in parallel, as here. * * This file is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #ifndef GNUPG_COMMON_SYSUTILS_H #define GNUPG_COMMON_SYSUTILS_H /* Because we use system handles and not libc low level file descriptors on W32, we need to declare them as HANDLE (which actually is a plain pointer). This is required to eventually support 64 bits Windows systems. */ #ifdef HAVE_W32_SYSTEM typedef void *gnupg_fd_t; #define GNUPG_INVALID_FD ((void*)(-1)) #define INT2FD(s) ((void *)(s)) #define FD2INT(h) ((unsigned int)(h)) #else typedef int gnupg_fd_t; #define GNUPG_INVALID_FD (-1) #define INT2FD(s) (s) #define FD2INT(h) (h) #endif void trap_unaligned (void); int disable_core_dumps (void); int enable_core_dumps (void); void enable_special_filenames (void); const unsigned char *get_session_marker (size_t *rlen); unsigned int get_uint_nonce (void); /*int check_permissions (const char *path,int extension,int checkonly);*/ void gnupg_sleep (unsigned int seconds); void gnupg_usleep (unsigned int usecs); int translate_sys2libc_fd (gnupg_fd_t fd, int for_write); int translate_sys2libc_fd_int (int fd, int for_write); int check_special_filename (const char *fname, int for_write, int notranslate); FILE *gnupg_tmpfile (void); void gnupg_reopen_std (const char *pgmname); void gnupg_inhibit_set_foregound_window (int yes); void gnupg_allow_set_foregound_window (pid_t pid); int gnupg_remove (const char *fname); gpg_error_t gnupg_rename_file (const char *oldname, const char *newname, int *block_signals); int gnupg_mkdir (const char *name, const char *modestr); int gnupg_chdir (const char *name); int gnupg_chmod (const char *name, const char *modestr); char *gnupg_mkdtemp (char *template); int gnupg_setenv (const char *name, const char *value, int overwrite); int gnupg_unsetenv (const char *name); char *gnupg_getcwd (void); gpg_err_code_t gnupg_access (const char *name, int mode); +int gnupg_open (const char *name, int flags, unsigned int mode); gpg_error_t gnupg_chuid (const char *user, int silent); char *gnupg_get_socket_name (int fd); int gnupg_fd_valid (int fd); gpg_error_t gnupg_inotify_watch_delete_self (int *r_fd, const char *fname); gpg_error_t gnupg_inotify_watch_socket (int *r_fd, const char *socket_name); int gnupg_inotify_has_name (int fd, const char *name); #ifdef HAVE_W32_SYSTEM void *w32_get_user_sid (void); #include "../common/w32help.h" #endif /*HAVE_W32_SYSTEM*/ #endif /*GNUPG_COMMON_SYSUTILS_H*/ diff --git a/dirmngr/crlcache.c b/dirmngr/crlcache.c index 131a0bd8d..54caf4136 100644 --- a/dirmngr/crlcache.c +++ b/dirmngr/crlcache.c @@ -1,2761 +1,2761 @@ /* crlcache.c - LDAP access * Copyright (C) 2002 Klarälvdalens Datakonsult AB * Copyright (C) 2003, 2004, 2005, 2008 g10 Code GmbH * * This file is part of DirMngr. * * DirMngr is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * DirMngr is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ /* 1. To keep track of the CRLs actually cached and to store the meta information of the CRLs a simple record oriented text file is used. Fields in the file are colon (':') separated and values containing colons or linefeeds are percent escaped (e.g. a colon itself is represented as "%3A"). The first field is a record type identifier, so that the file is useful to keep track of other meta data too. The name of the file is "DIR.txt". 1.1. Comment record Field 1: Constant beginning with "#". Other fields are not defined and such a record is simply skipped during processing. 1.2. Version record Field 1: Constant "v" Field 2: Version number of this file. Must be 1. This record must be the first non-comment record and there shall only exist one record of this type. 1.3. CRL cache record Field 1: Constant "c", "u" or "i". A "c" or "u" indicate a valid cache entry, however "u" requires that a user root certificate check needs to be done. An "i" indicates an invalid cache entry which should not be used but still exists so that it can be updated at NEXT_UPDATE. Field 2: Hexadecimal encoded SHA-1 hash of the issuer DN using uppercase letters. Field 3: Issuer DN in RFC-2253 notation. Field 4: URL used to retrieve the corresponding CRL. Field 5: 15 character ISO timestamp with THIS_UPDATE. Field 6: 15 character ISO timestamp with NEXT_UPDATE. Field 7: Hexadecimal encoded MD-5 hash of the DB file to detect accidental modified (i.e. deleted and created) cache files. Field 8: optional CRL number as a hex string. Field 9: AuthorityKeyID.issuer, each Name separated by 0x01 Field 10: AuthorityKeyID.serial Field 11: Hex fingerprint of trust anchor if field 1 is 'u'. 2. Layout of the standard CRL Cache DB file: We use records of variable length with this structure n bytes Serialnumber (binary) used as key thus there is no need to store the length explicitly with DB2. 1 byte Reason for revocation (currently the KSBA reason flags are used) 15 bytes ISO date of revocation (e.g. 19980815T142000) Note that there is no terminating 0 stored. The filename used is the hexadecimal (using uppercase letters) SHA-1 hash value of the issuer DN prefixed with a "crl-" and suffixed with a ".db". Thus the length of the filename is 47. */ #include #include #include #include #include #include #include #include #include #include #ifndef HAVE_W32_SYSTEM #include #endif #ifdef MKDIR_TAKES_ONE_ARG #undef mkdir #define mkdir(a,b) mkdir(a) #endif #include "dirmngr.h" #include "validate.h" #include "certcache.h" #include "crlcache.h" #include "crlfetch.h" #include "misc.h" #include "cdb.h" /* Change this whenever the format changes */ #define DBDIR_D "crls.d" #define DBDIRFILE "DIR.txt" #define DBDIRVERSION 1 /* The number of DB files we may have open at one time. We need to limit this because there is no guarantee that the number of issuers has a upper limit. We are currently using mmap, so it is a good idea anyway to limit the number of opened cache files. */ #define MAX_OPEN_DB_FILES 5 #ifndef O_BINARY # define O_BINARY 0 #endif static const char oidstr_crlNumber[] = "2.5.29.20"; /* static const char oidstr_issuingDistributionPoint[] = "2.5.29.28"; */ static const char oidstr_authorityKeyIdentifier[] = "2.5.29.35"; /* Definition of one cached item. */ struct crl_cache_entry_s { struct crl_cache_entry_s *next; int deleted; /* True if marked for deletion. */ int mark; /* Internally used by update_dir. */ unsigned int lineno;/* A 0 indicates a new entry. */ char *release_ptr; /* The actual allocated memory. */ char *url; /* Points into RELEASE_PTR. */ char *issuer; /* Ditto. */ char *issuer_hash; /* Ditto. */ char *dbfile_hash; /* MD5 sum of the cache file, points into RELEASE_PTR.*/ int invalid; /* Can't use this CRL. */ int user_trust_req; /* User supplied root certificate required. */ char *check_trust_anchor; /* Malloced fingerprint. */ ksba_isotime_t this_update; ksba_isotime_t next_update; ksba_isotime_t last_refresh; /* Use for the force_crl_refresh feature. */ char *crl_number; char *authority_issuer; char *authority_serialno; struct cdb *cdb; /* The cache file handle or NULL if not open. */ unsigned int cdb_use_count; /* Current use count. */ unsigned int cdb_lru_count; /* Used for LRU purposes. */ int dbfile_checked; /* Set to true if the dbfile_hash value has been checked one. */ }; /* Definition of the entire cache object. */ struct crl_cache_s { crl_cache_entry_t entries; }; typedef struct crl_cache_s *crl_cache_t; /* Prototypes. */ static crl_cache_entry_t find_entry (crl_cache_entry_t first, const char *issuer_hash); /* The currently loaded cache object. This is usually initialized right at startup. */ static crl_cache_t current_cache; /* Return the current cache object or bail out if it is has not yet been initialized. */ static crl_cache_t get_current_cache (void) { if (!current_cache) log_fatal ("CRL cache has not yet been initialized\n"); return current_cache; } /* Create ae directory if it does not yet exists. Returns on success, or -1 on error. */ static int create_directory_if_needed (const char *name) { DIR *dir; char *fname; fname = make_filename (opt.homedir_cache, name, NULL); dir = opendir (fname); if (!dir) { log_info (_("creating directory '%s'\n"), fname); if (mkdir (fname, S_IRUSR|S_IWUSR|S_IXUSR) ) { int save_errno = errno; log_error (_("error creating directory '%s': %s\n"), fname, strerror (errno)); xfree (fname); gpg_err_set_errno (save_errno); return -1; } } else closedir (dir); xfree (fname); return 0; } /* Remove all files from the cache directory. If FORCE is not true, some sanity checks on the filenames are done. Return 0 if everything went fine. */ static int cleanup_cache_dir (int force) { char *dname = make_filename (opt.homedir_cache, DBDIR_D, NULL); DIR *dir; struct dirent *de; int problem = 0; if (!force) { /* Very minor sanity checks. */ if (!strcmp (dname, "~/") || !strcmp (dname, "/" )) { log_error (_("ignoring database dir '%s'\n"), dname); xfree (dname); return -1; } } dir = opendir (dname); if (!dir) { log_error (_("error reading directory '%s': %s\n"), dname, strerror (errno)); xfree (dname); return -1; } while ((de = readdir (dir))) { if (strcmp (de->d_name, "." ) && strcmp (de->d_name, "..")) { char *cdbname = make_filename (dname, de->d_name, NULL); int okay; struct stat sbuf; if (force) okay = 1; else okay = (!stat (cdbname, &sbuf) && S_ISREG (sbuf.st_mode)); if (okay) { log_info (_("removing cache file '%s'\n"), cdbname); if (gnupg_remove (cdbname)) { log_error ("failed to remove '%s': %s\n", cdbname, strerror (errno)); problem = -1; } } else log_info (_("not removing file '%s'\n"), cdbname); xfree (cdbname); } } xfree (dname); closedir (dir); return problem; } /* Read the next line from the file FP and return the line in an malloced buffer. Return NULL on error or EOF. There is no limitation os the line length. The trailing linefeed has been removed, the function will read the last line of a file, even if that is not terminated by a LF. */ static char * next_line_from_file (estream_t fp, gpg_error_t *r_err) { char buf[300]; char *largebuf = NULL; size_t buflen; size_t len = 0; unsigned char *p; int c; char *tmpbuf; *r_err = 0; p = buf; buflen = sizeof buf - 1; while ((c=es_getc (fp)) != EOF && c != '\n') { if (len >= buflen) { if (!largebuf) { buflen += 1024; largebuf = xtrymalloc ( buflen + 1 ); if (!largebuf) { *r_err = gpg_error_from_syserror (); return NULL; } memcpy (largebuf, buf, len); } else { buflen += 1024; tmpbuf = xtryrealloc (largebuf, buflen + 1); if (!tmpbuf) { *r_err = gpg_error_from_syserror (); xfree (largebuf); return NULL; } largebuf = tmpbuf; } p = largebuf; } p[len++] = c; } if (c == EOF && !len) return NULL; p[len] = 0; if (largebuf) tmpbuf = xtryrealloc (largebuf, len+1); else tmpbuf = xtrystrdup (buf); if (!tmpbuf) { *r_err = gpg_error_from_syserror (); xfree (largebuf); } return tmpbuf; } /* Release one cache entry. */ static void release_one_cache_entry (crl_cache_entry_t entry) { if (entry) { if (entry->cdb) { int fd = cdb_fileno (entry->cdb); cdb_free (entry->cdb); xfree (entry->cdb); if (close (fd)) log_error (_("error closing cache file: %s\n"), strerror(errno)); } xfree (entry->release_ptr); xfree (entry->check_trust_anchor); xfree (entry); } } /* Release the CACHE object. */ static void release_cache (crl_cache_t cache) { crl_cache_entry_t entry, entry2; if (!cache) return; for (entry = cache->entries; entry; entry = entry2) { entry2 = entry->next; release_one_cache_entry (entry); } cache->entries = NULL; xfree (cache); } /* Open the dir file FNAME or create a new one if it does not yet exist. */ static estream_t open_dir_file (const char *fname) { estream_t fp; fp = es_fopen (fname, "r"); if (!fp) { log_error (_("failed to open cache dir file '%s': %s\n"), fname, strerror (errno)); /* Make sure that the directory exists, try to create if otherwise. */ if (create_directory_if_needed (NULL) || create_directory_if_needed (DBDIR_D)) return NULL; fp = es_fopen (fname, "w"); if (!fp) { log_error (_("error creating new cache dir file '%s': %s\n"), fname, strerror (errno)); return NULL; } es_fprintf (fp, "v:%d:\n", DBDIRVERSION); if (es_ferror (fp)) { log_error (_("error writing new cache dir file '%s': %s\n"), fname, strerror (errno)); es_fclose (fp); return NULL; } if (es_fclose (fp)) { log_error (_("error closing new cache dir file '%s': %s\n"), fname, strerror (errno)); return NULL; } log_info (_("new cache dir file '%s' created\n"), fname); fp = es_fopen (fname, "r"); if (!fp) { log_error (_("failed to re-open cache dir file '%s': %s\n"), fname, strerror (errno)); return NULL; } } return fp; } /* Helper for open_dir. */ static gpg_error_t check_dir_version (estream_t *fpadr, const char *fname, unsigned int *lineno, int cleanup_on_mismatch) { char *line; gpg_error_t lineerr = 0; estream_t fp = *fpadr; int created = 0; retry: while ((line = next_line_from_file (fp, &lineerr))) { ++*lineno; if (*line == 'v' && line[1] == ':') break; else if (*line != '#') { log_error (_("first record of '%s' is not the version\n"), fname); xfree (line); return gpg_error (GPG_ERR_CONFIGURATION); } xfree (line); } if (lineerr) return lineerr; /* The !line catches the case of an empty DIR file. We handle this the same as a non-matching version. */ if (!line || strtol (line+2, NULL, 10) != DBDIRVERSION) { if (!created && cleanup_on_mismatch) { log_error (_("old version of cache directory - cleaning up\n")); es_fclose (fp); *fpadr = NULL; if (!cleanup_cache_dir (1)) { *lineno = 0; fp = *fpadr = open_dir_file (fname); if (!fp) { xfree (line); return gpg_error (GPG_ERR_CONFIGURATION); } created = 1; goto retry; } } log_error (_("old version of cache directory - giving up\n")); xfree (line); return gpg_error (GPG_ERR_CONFIGURATION); } xfree (line); return 0; } /* Open the dir file and read in all available information. Store that in a newly allocated cache object and return that if everything worked out fine. Create the cache directory and the dir if it does not yet exist. Remove all files in that directory if the version does not match. */ static gpg_error_t open_dir (crl_cache_t *r_cache) { crl_cache_t cache; char *fname; char *line = NULL; gpg_error_t lineerr = 0; estream_t fp; crl_cache_entry_t entry, *entrytail; unsigned int lineno; gpg_error_t err = 0; int anyerr = 0; cache = xtrycalloc (1, sizeof *cache); if (!cache) return gpg_error_from_syserror (); fname = make_filename (opt.homedir_cache, DBDIR_D, DBDIRFILE, NULL); lineno = 0; fp = open_dir_file (fname); if (!fp) { err = gpg_error (GPG_ERR_CONFIGURATION); goto leave; } err = check_dir_version (&fp, fname, &lineno, 1); if (err) goto leave; /* Read in all supported entries from the dir file. */ cache->entries = NULL; entrytail = &cache->entries; xfree (line); while ((line = next_line_from_file (fp, &lineerr))) { int fieldno; char *p, *endp; lineno++; if ( *line == 'c' || *line == 'u' || *line == 'i' ) { entry = xtrycalloc (1, sizeof *entry); if (!entry) { err = gpg_error_from_syserror (); goto leave; } entry->lineno = lineno; entry->release_ptr = line; if (*line == 'i') { entry->invalid = atoi (line+1); if (entry->invalid < 1) entry->invalid = 1; } else if (*line == 'u') entry->user_trust_req = 1; for (fieldno=1, p = line; p; p = endp, fieldno++) { endp = strchr (p, ':'); if (endp) *endp++ = '\0'; switch (fieldno) { case 1: /* record type */ break; case 2: entry->issuer_hash = p; break; case 3: entry->issuer = unpercent_string (p); break; case 4: entry->url = unpercent_string (p); break; case 5: strncpy (entry->this_update, p, 15); entry->this_update[15] = 0; break; case 6: strncpy (entry->next_update, p, 15); entry->next_update[15] = 0; break; case 7: entry->dbfile_hash = p; break; case 8: if (*p) entry->crl_number = p; break; case 9: if (*p) entry->authority_issuer = unpercent_string (p); break; case 10: if (*p) entry->authority_serialno = unpercent_string (p); break; case 11: if (*p) entry->check_trust_anchor = xtrystrdup (p); break; default: if (*p) log_info (_("extra field detected in crl record of " "'%s' line %u\n"), fname, lineno); break; } } if (!entry->issuer_hash) { log_info (_("invalid line detected in '%s' line %u\n"), fname, lineno); xfree (entry); entry = NULL; } else if (find_entry (cache->entries, entry->issuer_hash)) { /* Fixme: The duplicate checking used is not very effective for large numbers of issuers. */ log_info (_("duplicate entry detected in '%s' line %u\n"), fname, lineno); xfree (entry); entry = NULL; } else { line = NULL; *entrytail = entry; entrytail = &entry->next; } } else if (*line == '#') ; else log_info (_("unsupported record type in '%s' line %u skipped\n"), fname, lineno); if (line) xfree (line); } if (lineerr) { err = lineerr; log_error (_("error reading '%s': %s\n"), fname, gpg_strerror (err)); goto leave; } if (es_ferror (fp)) { log_error (_("error reading '%s': %s\n"), fname, strerror (errno)); err = gpg_error (GPG_ERR_CONFIGURATION); goto leave; } /* Now do some basic checks on the data. */ for (entry = cache->entries; entry; entry = entry->next) { assert (entry->lineno); if (strlen (entry->issuer_hash) != 40) { anyerr++; log_error (_("invalid issuer hash in '%s' line %u\n"), fname, entry->lineno); } else if ( !*entry->issuer ) { anyerr++; log_error (_("no issuer DN in '%s' line %u\n"), fname, entry->lineno); } else if ( check_isotime (entry->this_update) || check_isotime (entry->next_update)) { anyerr++; log_error (_("invalid timestamp in '%s' line %u\n"), fname, entry->lineno); } /* Checks not leading to an immediate fail. */ if (strlen (entry->dbfile_hash) != 32) log_info (_("WARNING: invalid cache file hash in '%s' line %u\n"), fname, entry->lineno); } if (anyerr) { log_error (_("detected errors in cache dir file\n")); log_info (_("please check the reason and manually delete that file\n")); err = gpg_error (GPG_ERR_CONFIGURATION); } leave: es_fclose (fp); xfree (line); xfree (fname); if (err) { release_cache (cache); cache = NULL; } *r_cache = cache; return err; } static void write_percented_string (const char *s, estream_t fp) { for (; *s; s++) if (*s == ':') es_fputs ("%3A", fp); else if (*s == '\n') es_fputs ("%0A", fp); else if (*s == '\r') es_fputs ("%0D", fp); else es_putc (*s, fp); } static void write_dir_line_crl (estream_t fp, crl_cache_entry_t e) { if (e->invalid) es_fprintf (fp, "i%d", e->invalid); else if (e->user_trust_req) es_putc ('u', fp); else es_putc ('c', fp); es_putc (':', fp); es_fputs (e->issuer_hash, fp); es_putc (':', fp); write_percented_string (e->issuer, fp); es_putc (':', fp); write_percented_string (e->url, fp); es_putc (':', fp); es_fwrite (e->this_update, 15, 1, fp); es_putc (':', fp); es_fwrite (e->next_update, 15, 1, fp); es_putc (':', fp); es_fputs (e->dbfile_hash, fp); es_putc (':', fp); if (e->crl_number) es_fputs (e->crl_number, fp); es_putc (':', fp); if (e->authority_issuer) write_percented_string (e->authority_issuer, fp); es_putc (':', fp); if (e->authority_serialno) es_fputs (e->authority_serialno, fp); es_putc (':', fp); if (e->check_trust_anchor && e->user_trust_req) es_fputs (e->check_trust_anchor, fp); es_putc ('\n', fp); } /* Update the current dir file using the cache. */ static gpg_error_t update_dir (crl_cache_t cache) { char *fname = NULL; char *tmpfname = NULL; char *line = NULL; gpg_error_t lineerr = 0; estream_t fp; estream_t fpout = NULL; crl_cache_entry_t e; unsigned int lineno; gpg_error_t err = 0; fname = make_filename (opt.homedir_cache, DBDIR_D, DBDIRFILE, NULL); /* Fixme: Take an update file lock here. */ for (e= cache->entries; e; e = e->next) e->mark = 1; lineno = 0; fp = es_fopen (fname, "r"); if (!fp) { err = gpg_error_from_errno (errno); log_error (_("failed to open cache dir file '%s': %s\n"), fname, strerror (errno)); goto leave; } err = check_dir_version (&fp, fname, &lineno, 0); if (err) goto leave; es_rewind (fp); lineno = 0; /* Create a temporary DIR file. */ { char *tmpbuf, *p; const char *nodename; #ifndef HAVE_W32_SYSTEM struct utsname utsbuf; #endif #ifdef HAVE_W32_SYSTEM nodename = "unknown"; #else if (uname (&utsbuf)) nodename = "unknown"; else nodename = utsbuf.nodename; #endif gpgrt_asprintf (&tmpbuf, "DIR-tmp-%s-%u-%p.txt.tmp", nodename, (unsigned int)getpid (), &tmpbuf); if (!tmpbuf) { err = gpg_error_from_errno (errno); log_error (_("failed to create temporary cache dir file '%s': %s\n"), tmpfname, strerror (errno)); goto leave; } for (p=tmpbuf; *p; p++) if (*p == '/') *p = '.'; tmpfname = make_filename (opt.homedir_cache, DBDIR_D, tmpbuf, NULL); xfree (tmpbuf); } fpout = es_fopen (tmpfname, "w"); if (!fpout) { err = gpg_error_from_errno (errno); log_error (_("failed to create temporary cache dir file '%s': %s\n"), tmpfname, strerror (errno)); goto leave; } while ((line = next_line_from_file (fp, &lineerr))) { lineno++; if (*line == 'c' || *line == 'u' || *line == 'i') { /* Extract the issuer hash field. */ char *fieldp, *endp; fieldp = strchr (line, ':'); endp = fieldp? strchr (++fieldp, ':') : NULL; if (endp) { /* There should be no percent within the issuer hash field, thus we can compare it pretty easily. */ *endp = 0; e = find_entry ( cache->entries, fieldp); *endp = ':'; /* Restore original line. */ if (e && e->deleted) { /* Marked for deletion, so don't write it. */ e->mark = 0; } else if (e) { /* Yep, this is valid entry we know about; write it out */ write_dir_line_crl (fpout, e); e->mark = 0; } else { /* We ignore entries we don't have in our cache because they may have been added in the meantime by other instances of dirmngr. */ es_fprintf (fpout, "# Next line added by " "another process; our pid is %lu\n", (unsigned long)getpid ()); es_fputs (line, fpout); es_putc ('\n', fpout); } } else { es_fputs ("# Invalid line detected: ", fpout); es_fputs (line, fpout); es_putc ('\n', fpout); } } else { /* Write out all non CRL lines as they are. */ es_fputs (line, fpout); es_putc ('\n', fpout); } xfree (line); } if (!es_ferror (fp) && !es_ferror (fpout) && !lineerr) { /* Write out the remaining entries. */ for (e= cache->entries; e; e = e->next) if (e->mark) { if (!e->deleted) write_dir_line_crl (fpout, e); e->mark = 0; } } if (lineerr) { err = lineerr; log_error (_("error reading '%s': %s\n"), fname, gpg_strerror (err)); goto leave; } if (es_ferror (fp)) { err = gpg_error_from_errno (errno); log_error (_("error reading '%s': %s\n"), fname, strerror (errno)); } if (es_ferror (fpout)) { err = gpg_error_from_errno (errno); log_error (_("error writing '%s': %s\n"), tmpfname, strerror (errno)); } if (err) goto leave; /* Rename the files. */ es_fclose (fp); fp = NULL; if (es_fclose (fpout)) { err = gpg_error_from_errno (errno); log_error (_("error closing '%s': %s\n"), tmpfname, strerror (errno)); goto leave; } fpout = NULL; #ifdef HAVE_W32_SYSTEM /* No atomic mv on W32 systems. */ gnupg_remove (fname); #endif if (rename (tmpfname, fname)) { err = gpg_error_from_errno (errno); log_error (_("error renaming '%s' to '%s': %s\n"), tmpfname, fname, strerror (errno)); goto leave; } leave: /* Fixme: Relinquish update lock. */ xfree (line); es_fclose (fp); xfree (fname); if (fpout) { es_fclose (fpout); if (err && tmpfname) gnupg_remove (tmpfname); } xfree (tmpfname); return err; } /* Create the filename for the cache file from the 40 byte ISSUER_HASH string. Caller must release the return string. */ static char * make_db_file_name (const char *issuer_hash) { char bname[50]; assert (strlen (issuer_hash) == 40); memcpy (bname, "crl-", 4); memcpy (bname + 4, issuer_hash, 40); strcpy (bname + 44, ".db"); return make_filename (opt.homedir_cache, DBDIR_D, bname, NULL); } /* Hash the file FNAME and return the MD5 digest in MD5BUFFER. The caller must allocate MD%buffer wityh at least 16 bytes. Returns 0 on success. */ static int hash_dbfile (const char *fname, unsigned char *md5buffer) { estream_t fp; char *buffer; size_t n; gcry_md_hd_t md5; gpg_error_t err; buffer = xtrymalloc (65536); fp = buffer? es_fopen (fname, "rb") : NULL; if (!fp) { log_error (_("can't hash '%s': %s\n"), fname, strerror (errno)); xfree (buffer); return -1; } err = gcry_md_open (&md5, GCRY_MD_MD5, 0); if (err) { log_error (_("error setting up MD5 hash context: %s\n"), gpg_strerror (err)); xfree (buffer); es_fclose (fp); return -1; } /* We better hash some information about the cache file layout in. */ sprintf (buffer, "%.100s/%.100s:%d", DBDIR_D, DBDIRFILE, DBDIRVERSION); gcry_md_write (md5, buffer, strlen (buffer)); for (;;) { n = es_fread (buffer, 1, 65536, fp); if (n < 65536 && es_ferror (fp)) { log_error (_("error hashing '%s': %s\n"), fname, strerror (errno)); xfree (buffer); es_fclose (fp); gcry_md_close (md5); return -1; } if (!n) break; gcry_md_write (md5, buffer, n); } es_fclose (fp); xfree (buffer); gcry_md_final (md5); memcpy (md5buffer, gcry_md_read (md5, GCRY_MD_MD5), 16); gcry_md_close (md5); return 0; } /* Compare the file FNAME against the dexified MD5 hash MD5HASH and return 0 if they match. */ static int check_dbfile (const char *fname, const char *md5hexvalue) { unsigned char buffer1[16], buffer2[16]; if (strlen (md5hexvalue) != 32) { log_error (_("invalid formatted checksum for '%s'\n"), fname); return -1; } unhexify (buffer1, md5hexvalue); if (hash_dbfile (fname, buffer2)) return -1; return memcmp (buffer1, buffer2, 16); } /* Open the cache file for ENTRY. This function implements a caching strategy and might close unused cache files. It is required to use unlock_db_file after using the file. */ static struct cdb * lock_db_file (crl_cache_t cache, crl_cache_entry_t entry) { char *fname; int fd; int open_count; crl_cache_entry_t e; if (entry->cdb) { entry->cdb_use_count++; return entry->cdb; } for (open_count = 0, e = cache->entries; e; e = e->next) { if (e->cdb) open_count++; /* log_debug ("CACHE: cdb=%p use_count=%u lru_count=%u\n", */ /* e->cdb,e->cdb_use_count,e->cdb_lru_count); */ } /* If there are too many file open, find the least recent used DB file and close it. Note that for Pth thread safeness we need to use a loop here. */ while (open_count >= MAX_OPEN_DB_FILES ) { crl_cache_entry_t last_e = NULL; unsigned int last_lru = (unsigned int)(-1); for (e = cache->entries; e; e = e->next) if (e->cdb && !e->cdb_use_count && e->cdb_lru_count < last_lru) { last_lru = e->cdb_lru_count; last_e = e; } if (!last_e) { log_error (_("too many open cache files; can't open anymore\n")); return NULL; } /* log_debug ("CACHE: closing file at cdb=%p\n", last_e->cdb); */ fd = cdb_fileno (last_e->cdb); cdb_free (last_e->cdb); xfree (last_e->cdb); last_e->cdb = NULL; if (close (fd)) log_error (_("error closing cache file: %s\n"), strerror(errno)); open_count--; } fname = make_db_file_name (entry->issuer_hash); if (opt.verbose) log_info (_("opening cache file '%s'\n"), fname ); if (!entry->dbfile_checked) { if (!check_dbfile (fname, entry->dbfile_hash)) entry->dbfile_checked = 1; /* Note, in case of an error we don't print an error here but let require the caller to do that check. */ } entry->cdb = xtrycalloc (1, sizeof *entry->cdb); if (!entry->cdb) { xfree (fname); return NULL; } - fd = open (fname, O_RDONLY | O_BINARY); + fd = gnupg_open (fname, O_RDONLY | O_BINARY, 0); if (fd == -1) { log_error (_("error opening cache file '%s': %s\n"), fname, strerror (errno)); xfree (entry->cdb); entry->cdb = NULL; xfree (fname); return NULL; } if (cdb_init (entry->cdb, fd)) { log_error (_("error initializing cache file '%s' for reading: %s\n"), fname, strerror (errno)); xfree (entry->cdb); entry->cdb = NULL; close (fd); xfree (fname); return NULL; } xfree (fname); entry->cdb_use_count = 1; entry->cdb_lru_count = 0; return entry->cdb; } /* Unlock a cache file, so that it can be reused. */ static void unlock_db_file (crl_cache_t cache, crl_cache_entry_t entry) { if (!entry->cdb) log_error (_("calling unlock_db_file on a closed file\n")); else if (!entry->cdb_use_count) log_error (_("calling unlock_db_file on an unlocked file\n")); else { entry->cdb_use_count--; entry->cdb_lru_count++; } /* If the entry was marked for deletion in the meantime do it now. We do this for the sake of Pth thread safeness. */ if (!entry->cdb_use_count && entry->deleted) { crl_cache_entry_t eprev, enext; enext = entry->next; for (eprev = cache->entries; eprev && eprev->next != entry; eprev = eprev->next) ; assert (eprev); if (eprev == cache->entries) cache->entries = enext; else eprev->next = enext; /* FIXME: Do we leak ENTRY? */ } } /* Find ISSUER_HASH in our cache FIRST. This may be used to enumerate the linked list we use to keep the CRLs of an issuer. */ static crl_cache_entry_t find_entry (crl_cache_entry_t first, const char *issuer_hash) { while (first && (first->deleted || strcmp (issuer_hash, first->issuer_hash))) first = first->next; return first; } /* Create a new CRL cache. This function is usually called only once. never fail. */ void crl_cache_init(void) { crl_cache_t cache = NULL; gpg_error_t err; if (current_cache) { log_error ("crl cache has already been initialized - not doing twice\n"); return; } err = open_dir (&cache); if (err) log_fatal (_("failed to create a new cache object: %s\n"), gpg_strerror (err)); current_cache = cache; } /* Remove the cache information and all its resources. Note that we still keep the cache on disk. */ void crl_cache_deinit (void) { if (current_cache) { release_cache (current_cache); current_cache = NULL; } } /* Delete the cache from disk and memory. Return 0 on success.*/ int crl_cache_flush (void) { int rc; crl_cache_deinit (); rc = cleanup_cache_dir (0)? -1 : 0; crl_cache_init (); return rc; } /* Check whether the certificate identified by ISSUER_HASH and SN/SNLEN is valid; i.e. not listed in our cache. With FORCE_REFRESH set to true, a new CRL will be retrieved even if the cache has not yet expired. We use a 30 minutes threshold here so that invoking this function several times won't load the CRL over and over. */ static crl_cache_result_t cache_isvalid (ctrl_t ctrl, const char *issuer_hash, const unsigned char *sn, size_t snlen, int force_refresh) { crl_cache_t cache = get_current_cache (); crl_cache_result_t retval; struct cdb *cdb; int rc; crl_cache_entry_t entry; gnupg_isotime_t current_time; size_t n; (void)ctrl; entry = find_entry (cache->entries, issuer_hash); if (!entry) { log_info (_("no CRL available for issuer id %s\n"), issuer_hash ); return CRL_CACHE_DONTKNOW; } gnupg_get_isotime (current_time); if (strcmp (entry->next_update, current_time) < 0 ) { log_info (_("cached CRL for issuer id %s too old; update required\n"), issuer_hash); return CRL_CACHE_DONTKNOW; } if (force_refresh) { gnupg_isotime_t tmptime; if (*entry->last_refresh) { gnupg_copy_time (tmptime, entry->last_refresh); add_seconds_to_isotime (tmptime, 30 * 60); if (strcmp (tmptime, current_time) < 0 ) { log_info (_("force-crl-refresh active and %d minutes passed for" " issuer id %s; update required\n"), 30, issuer_hash); return CRL_CACHE_DONTKNOW; } } else { log_info (_("force-crl-refresh active for" " issuer id %s; update required\n"), issuer_hash); return CRL_CACHE_DONTKNOW; } } if (entry->invalid) { log_info (_("available CRL for issuer ID %s can't be used\n"), issuer_hash); return CRL_CACHE_CANTUSE; } cdb = lock_db_file (cache, entry); if (!cdb) return CRL_CACHE_DONTKNOW; /* Hmmm, not the best error code. */ if (!entry->dbfile_checked) { log_error (_("cached CRL for issuer id %s tampered; we need to update\n") , issuer_hash); unlock_db_file (cache, entry); return CRL_CACHE_DONTKNOW; } rc = cdb_find (cdb, sn, snlen); if (rc == 1) { n = cdb_datalen (cdb); if (n != 16) { log_error (_("WARNING: invalid cache record length for S/N ")); log_printf ("0x"); log_printhex (sn, snlen, ""); } else if (opt.verbose) { unsigned char record[16]; char *tmp = hexify_data (sn, snlen, 1); if (cdb_read (cdb, record, n, cdb_datapos (cdb))) log_error (_("problem reading cache record for S/N %s: %s\n"), tmp, strerror (errno)); else log_info (_("S/N %s is not valid; reason=%02X date=%.15s\n"), tmp, *record, record+1); xfree (tmp); } retval = CRL_CACHE_INVALID; } else if (!rc) { if (opt.verbose) { char *serialno = hexify_data (sn, snlen, 1); log_info (_("S/N %s is valid, it is not listed in the CRL\n"), serialno ); xfree (serialno); } retval = CRL_CACHE_VALID; } else { log_error (_("error getting data from cache file: %s\n"), strerror (errno)); retval = CRL_CACHE_DONTKNOW; } if (entry->user_trust_req && (retval == CRL_CACHE_VALID || retval == CRL_CACHE_INVALID)) { if (!entry->check_trust_anchor) { log_error ("inconsistent data on user trust check\n"); retval = CRL_CACHE_CANTUSE; } else if (get_istrusted_from_client (ctrl, entry->check_trust_anchor)) { if (opt.verbose) log_info ("no system trust and client does not trust either\n"); retval = CRL_CACHE_CANTUSE; } else { /* Okay, the CRL is considered valid by the client and thus we can return the result as is. */ } } unlock_db_file (cache, entry); return retval; } /* Check whether the certificate identified by ISSUER_HASH and SERIALNO is valid; i.e. not listed in our cache. With FORCE_REFRESH set to true, a new CRL will be retrieved even if the cache has not yet expired. We use a 30 minutes threshold here so that invoking this function several times won't load the CRL over and over. */ crl_cache_result_t crl_cache_isvalid (ctrl_t ctrl, const char *issuer_hash, const char *serialno, int force_refresh) { crl_cache_result_t result; unsigned char snbuf_buffer[50]; unsigned char *snbuf; size_t n; n = strlen (serialno)/2+1; if (n < sizeof snbuf_buffer - 1) snbuf = snbuf_buffer; else { snbuf = xtrymalloc (n); if (!snbuf) return CRL_CACHE_DONTKNOW; } n = unhexify (snbuf, serialno); result = cache_isvalid (ctrl, issuer_hash, snbuf, n, force_refresh); if (snbuf != snbuf_buffer) xfree (snbuf); return result; } /* Check whether the certificate CERT is valid; i.e. not listed in our cache. With FORCE_REFRESH set to true, a new CRL will be retrieved even if the cache has not yet expired. We use a 30 minutes threshold here so that invoking this function several times won't load the CRL over and over. */ gpg_error_t crl_cache_cert_isvalid (ctrl_t ctrl, ksba_cert_t cert, int force_refresh) { gpg_error_t err; crl_cache_result_t result; unsigned char issuerhash[20]; char issuerhash_hex[41]; ksba_sexp_t serial; unsigned char *sn; size_t snlen; char *endp, *tmp; int i; /* Compute the hash value of the issuer name. */ tmp = ksba_cert_get_issuer (cert, 0); if (!tmp) { log_error ("oops: issuer missing in certificate\n"); return gpg_error (GPG_ERR_INV_CERT_OBJ); } gcry_md_hash_buffer (GCRY_MD_SHA1, issuerhash, tmp, strlen (tmp)); xfree (tmp); for (i=0,tmp=issuerhash_hex; i < 20; i++, tmp += 2) sprintf (tmp, "%02X", issuerhash[i]); /* Get the serial number. */ serial = ksba_cert_get_serial (cert); if (!serial) { log_error ("oops: S/N missing in certificate\n"); return gpg_error (GPG_ERR_INV_CERT_OBJ); } sn = serial; if (*sn != '(') { log_error ("oops: invalid S/N\n"); xfree (serial); return gpg_error (GPG_ERR_INV_CERT_OBJ); } sn++; snlen = strtoul (sn, &endp, 10); sn = endp; if (*sn != ':') { log_error ("oops: invalid S/N\n"); xfree (serial); return gpg_error (GPG_ERR_INV_CERT_OBJ); } sn++; /* Check the cache. */ result = cache_isvalid (ctrl, issuerhash_hex, sn, snlen, force_refresh); switch (result) { case CRL_CACHE_VALID: err = 0; break; case CRL_CACHE_INVALID: err = gpg_error (GPG_ERR_CERT_REVOKED); break; case CRL_CACHE_DONTKNOW: err = gpg_error (GPG_ERR_NO_CRL_KNOWN); break; case CRL_CACHE_CANTUSE: err = gpg_error (GPG_ERR_NO_CRL_KNOWN); break; default: log_fatal ("cache_isvalid returned invalid status code %d\n", result); } xfree (serial); return err; } /* Return the hash algorithm's algo id from its name given in the * non-null termnated string in (buffer,buflen). Returns 0 on failure * or if the algo is not known. */ static int hash_algo_from_buffer (const void *buffer, size_t buflen) { char *string; int algo; string = xtrymalloc (buflen + 1); if (!string) { log_error (_("out of core\n")); return 0; } memcpy (string, buffer, buflen); string[buflen] = 0; algo = gcry_md_map_name (string); if (!algo) log_error ("unknown digest algorithm '%s' used in certificate\n", string); xfree (string); return algo; } /* Return an unsigned integer from the non-null termnated string * (buffer,buflen). Returns 0 on failure. */ static unsigned int uint_from_buffer (const void *buffer, size_t buflen) { char *string; unsigned int val; string = xtrymalloc (buflen + 1); if (!string) { log_error (_("out of core\n")); return 0; } memcpy (string, buffer, buflen); string[buflen] = 0; val = strtoul (string, NULL, 10); xfree (string); return val; } /* Prepare a hash context for the signature verification. Input is the CRL and the output is the hash context MD as well as the uses algorithm identifier ALGO. */ static gpg_error_t start_sig_check (ksba_crl_t crl, gcry_md_hd_t *md, int *algo, int *use_pss) { gpg_error_t err; const char *algoid; *use_pss = 0; algoid = ksba_crl_get_digest_algo (crl); if (algoid && !strcmp (algoid, "1.2.840.113549.1.1.10")) { /* Parse rsaPSS parameter. */ gcry_buffer_t ioarray[1] = { {0} }; ksba_sexp_t pssparam; size_t n; gcry_sexp_t psssexp; pssparam = ksba_crl_get_sig_val (crl); n = gcry_sexp_canon_len (pssparam, 0, NULL, NULL); if (!n) { ksba_free (pssparam); log_error (_("got an invalid S-expression from libksba\n")); return gpg_error (GPG_ERR_INV_SEXP); } err = gcry_sexp_sscan (&psssexp, NULL, pssparam, n); ksba_free (pssparam); if (err) { log_error (_("converting S-expression failed: %s\n"), gcry_strerror (err)); return err; } err = gcry_sexp_extract_param (psssexp, "sig-val", "&'hash-algo'", ioarray, NULL); gcry_sexp_release (psssexp); if (err) { log_error ("extracting params from PSS failed: %s\n", gpg_strerror (err)); return err; } *algo = hash_algo_from_buffer (ioarray[0].data, ioarray[0].len); xfree (ioarray[0].data); *use_pss = 1; } else *algo = gcry_md_map_name (algoid); if (!*algo) { log_error (_("unknown hash algorithm '%s'\n"), algoid? algoid:"?"); return gpg_error (GPG_ERR_DIGEST_ALGO); } err = gcry_md_open (md, *algo, 0); if (err) { log_error (_("gcry_md_open for algorithm %d failed: %s\n"), *algo, gcry_strerror (err)); return err; } if (DBG_HASHING) gcry_md_debug (*md, "hash.cert"); ksba_crl_set_hash_function (crl, HASH_FNC, *md); return 0; } /* Finish a hash context and verify the signature. This function should return 0 on a good signature, GPG_ERR_BAD_SIGNATURE if the signature does not verify or any other error code. CRL is the CRL object we are working on, MD the hash context and ISSUER_CERT the certificate of the CRL issuer. This function takes ownership of MD. */ static gpg_error_t finish_sig_check (ksba_crl_t crl, gcry_md_hd_t md, int algo, ksba_cert_t issuer_cert, int use_pss) { gpg_error_t err; ksba_sexp_t sigval = NULL, pubkey = NULL; size_t n; gcry_sexp_t s_sig = NULL, s_hash = NULL, s_pkey = NULL; unsigned int saltlen = 0; /* (used only with use_pss) */ /* This also stops debugging on the MD. */ gcry_md_final (md); /* Get and convert the signature value. */ sigval = ksba_crl_get_sig_val (crl); n = gcry_sexp_canon_len (sigval, 0, NULL, NULL); if (!n) { log_error (_("got an invalid S-expression from libksba\n")); err = gpg_error (GPG_ERR_INV_SEXP); goto leave; } err = gcry_sexp_sscan (&s_sig, NULL, sigval, n); if (err) { log_error (_("converting S-expression failed: %s\n"), gcry_strerror (err)); goto leave; } if (use_pss) { /* Parse rsaPSS parameter which we should find in S_SIG. */ gcry_buffer_t ioarray[2] = { {0}, {0} }; ksba_sexp_t pssparam; gcry_sexp_t psssexp; int hashalgo; pssparam = ksba_crl_get_sig_val (crl); n = gcry_sexp_canon_len (pssparam, 0, NULL, NULL); if (!n) { ksba_free (pssparam); log_error (_("got an invalid S-expression from libksba\n")); err = gpg_error (GPG_ERR_INV_SEXP); goto leave; } err = gcry_sexp_sscan (&psssexp, NULL, pssparam, n); ksba_free (pssparam); if (err) { log_error (_("converting S-expression failed: %s\n"), gcry_strerror (err)); goto leave; } err = gcry_sexp_extract_param (psssexp, "sig-val", "&'hash-algo''salt-length'", ioarray+0, ioarray+1, NULL); gcry_sexp_release (psssexp); if (err) { log_error ("extracting params from PSS failed: %s\n", gpg_strerror (err)); goto leave; } hashalgo = hash_algo_from_buffer (ioarray[0].data, ioarray[0].len); saltlen = uint_from_buffer (ioarray[1].data, ioarray[1].len); xfree (ioarray[0].data); xfree (ioarray[1].data); if (hashalgo != algo) { log_error ("hash algo mismatch: %d announced but %d used\n", algo, hashalgo); return gpg_error (GPG_ERR_INV_CRL); } /* Add some restrictions; see ../sm/certcheck.c for details. */ switch (algo) { case GCRY_MD_SHA1: case GCRY_MD_SHA256: case GCRY_MD_SHA384: case GCRY_MD_SHA512: case GCRY_MD_SHA3_256: case GCRY_MD_SHA3_384: case GCRY_MD_SHA3_512: break; default: log_error ("PSS hash algorithm '%s' rejected\n", gcry_md_algo_name (algo)); return gpg_error (GPG_ERR_DIGEST_ALGO); } if (gcry_md_get_algo_dlen (algo) != saltlen) { log_error ("PSS hash algorithm '%s' rejected due to salt length %u\n", gcry_md_algo_name (algo), saltlen); return gpg_error (GPG_ERR_DIGEST_ALGO); } } /* Get and convert the public key for the issuer certificate. */ if (DBG_X509) dump_cert ("crl_issuer_cert", issuer_cert); pubkey = ksba_cert_get_public_key (issuer_cert); n = gcry_sexp_canon_len (pubkey, 0, NULL, NULL); if (!n) { log_error (_("got an invalid S-expression from libksba\n")); err = gpg_error (GPG_ERR_INV_SEXP); goto leave; } err = gcry_sexp_sscan (&s_pkey, NULL, pubkey, n); if (err) { log_error (_("converting S-expression failed: %s\n"), gcry_strerror (err)); goto leave; } /* Create an S-expression with the actual hash value. */ if (use_pss) { err = gcry_sexp_build (&s_hash, NULL, "(data (flags pss)" "(hash %s %b)" "(salt-length %u))", hash_algo_to_string (algo), (int)gcry_md_get_algo_dlen (algo), gcry_md_read (md, algo), saltlen); } else { err = gcry_sexp_build (&s_hash, NULL, "(data(flags pkcs1)(hash %s %b))", hash_algo_to_string (algo), (int)gcry_md_get_algo_dlen (algo), gcry_md_read (md, algo)); } if (err) { log_error (_("creating S-expression failed: %s\n"), gcry_strerror (err)); goto leave; } /* Pass this on to the signature verification. */ err = gcry_pk_verify (s_sig, s_hash, s_pkey); if (DBG_X509) log_debug ("gcry_pk_verify: %s\n", gpg_strerror (err)); leave: xfree (sigval); xfree (pubkey); gcry_sexp_release (s_sig); gcry_sexp_release (s_hash); gcry_sexp_release (s_pkey); gcry_md_close (md); return err; } /* Call this to match a start_sig_check that can not be completed normally. Takes ownership of MD if MD is not NULL. */ static void abort_sig_check (ksba_crl_t crl, gcry_md_hd_t md) { (void)crl; if (md) gcry_md_close (md); } /* Workhorse of the CRL loading machinery. The CRL is read using the CRL object and stored in the data base file DB with the name FNAME (only used for printing error messages). That DB should be a temporary one and not the actual one. If the function fails the caller should delete this temporary database file. CTRL is required to retrieve certificates using the general dirmngr callback service. R_CRLISSUER returns an allocated string with the crl-issuer DN, THIS_UPDATE and NEXT_UPDATE are filled with the corresponding data from the CRL. Note that these values might get set even if the CRL processing fails at a later step; thus the caller should free *R_ISSUER even if the function returns with an error. R_TRUST_ANCHOR is set on exit to NULL or a string with the hexified fingerprint of the root certificate, if checking this certificate for trustiness is required. */ static int crl_parse_insert (ctrl_t ctrl, ksba_crl_t crl, struct cdb_make *cdb, const char *fname, char **r_crlissuer, ksba_isotime_t thisupdate, ksba_isotime_t nextupdate, char **r_trust_anchor) { gpg_error_t err; ksba_stop_reason_t stopreason; ksba_cert_t crlissuer_cert = NULL; gcry_md_hd_t md = NULL; int algo = 0; int use_pss = 0; size_t n; (void)fname; *r_crlissuer = NULL; *thisupdate = *nextupdate = 0; *r_trust_anchor = NULL; /* Start of the KSBA parser loop. */ do { err = ksba_crl_parse (crl, &stopreason); if (err) { log_error (_("ksba_crl_parse failed: %s\n"), gpg_strerror (err) ); goto failure; } switch (stopreason) { case KSBA_SR_BEGIN_ITEMS: { err = start_sig_check (crl, &md, &algo, &use_pss); if (err) goto failure; err = ksba_crl_get_update_times (crl, thisupdate, nextupdate); if (err) { log_error (_("error getting update times of CRL: %s\n"), gpg_strerror (err)); err = gpg_error (GPG_ERR_INV_CRL); goto failure; } if (opt.verbose || !*nextupdate) log_info (_("update times of this CRL: this=%s next=%s\n"), thisupdate, nextupdate); if (!*nextupdate) { log_info (_("nextUpdate not given; " "assuming a validity period of one day\n")); gnupg_copy_time (nextupdate, thisupdate); add_seconds_to_isotime (nextupdate, 86400); } } break; case KSBA_SR_GOT_ITEM: { ksba_sexp_t serial; const unsigned char *p; ksba_isotime_t rdate; ksba_crl_reason_t reason; int rc; unsigned char record[1+15]; err = ksba_crl_get_item (crl, &serial, rdate, &reason); if (err) { log_error (_("error getting CRL item: %s\n"), gpg_strerror (err)); err = gpg_error (GPG_ERR_INV_CRL); ksba_free (serial); goto failure; } p = serial_to_buffer (serial, &n); if (!p) BUG (); record[0] = (reason & 0xff); memcpy (record+1, rdate, 15); rc = cdb_make_add (cdb, p, n, record, 1+15); if (rc) { err = gpg_error_from_errno (errno); log_error (_("error inserting item into " "temporary cache file: %s\n"), strerror (errno)); goto failure; } ksba_free (serial); } break; case KSBA_SR_END_ITEMS: break; case KSBA_SR_READY: { char *crlissuer; ksba_name_t authid; ksba_sexp_t authidsn; ksba_sexp_t keyid; /* We need to look for the issuer only after having read all items. The issuer itself comes before the items but the optional authorityKeyIdentifier comes after the items. */ err = ksba_crl_get_issuer (crl, &crlissuer); if( err ) { log_error (_("no CRL issuer found in CRL: %s\n"), gpg_strerror (err) ); err = gpg_error (GPG_ERR_INV_CRL); goto failure; } /* Note: This should be released by ksba_free, not xfree. May need a memory reallocation dance. */ *r_crlissuer = crlissuer; /* (Do it here so we don't need to free it later) */ if (!ksba_crl_get_auth_key_id (crl, &keyid, &authid, &authidsn)) { const char *s; if (opt.verbose) log_info (_("locating CRL issuer certificate by " "authorityKeyIdentifier\n")); s = ksba_name_enum (authid, 0); if (s && *authidsn) crlissuer_cert = find_cert_bysn (ctrl, s, authidsn); if (!crlissuer_cert && keyid) crlissuer_cert = find_cert_bysubject (ctrl, crlissuer, keyid); if (!crlissuer_cert) { log_info ("CRL issuer certificate "); if (keyid) { log_printf ("{"); dump_serial (keyid); log_printf ("} "); } if (authidsn) { log_printf ("(#"); dump_serial (authidsn); log_printf ("/"); dump_string (s); log_printf (") "); } log_printf ("not found\n"); } ksba_name_release (authid); xfree (authidsn); xfree (keyid); } else crlissuer_cert = find_cert_bysubject (ctrl, crlissuer, NULL); err = 0; if (!crlissuer_cert) { err = gpg_error (GPG_ERR_MISSING_CERT); goto failure; } err = finish_sig_check (crl, md, algo, crlissuer_cert, use_pss); md = NULL; /* Closed. */ if (err) { log_error (_("CRL signature verification failed: %s\n"), gpg_strerror (err)); goto failure; } err = validate_cert_chain (ctrl, crlissuer_cert, NULL, (VALIDATE_FLAG_TRUST_CONFIG | VALIDATE_FLAG_CRL | VALIDATE_FLAG_RECURSIVE), r_trust_anchor); if (err) { log_error (_("error checking validity of CRL " "issuer certificate: %s\n"), gpg_strerror (err)); goto failure; } } break; default: log_debug ("crl_parse_insert: unknown stop reason\n"); err = gpg_error (GPG_ERR_BUG); goto failure; } } while (stopreason != KSBA_SR_READY); assert (!err); failure: abort_sig_check (crl, md); ksba_cert_release (crlissuer_cert); return err; } /* Return the crlNumber extension as an allocated hex string or NULL if there is none. */ static char * get_crl_number (ksba_crl_t crl) { gpg_error_t err; ksba_sexp_t number; char *string; err = ksba_crl_get_crl_number (crl, &number); if (err) return NULL; string = serial_hex (number); ksba_free (number); return string; } /* Return the authorityKeyIdentifier or NULL if it is not available. The issuer name may consists of several parts - they are delimited by 0x01. */ static char * get_auth_key_id (ksba_crl_t crl, char **serialno) { gpg_error_t err; ksba_name_t name; ksba_sexp_t sn; int idx; const char *s; char *string; size_t length; *serialno = NULL; err = ksba_crl_get_auth_key_id (crl, NULL, &name, &sn); if (err) return NULL; *serialno = serial_hex (sn); ksba_free (sn); if (!name) return xstrdup (""); length = 0; for (idx=0; (s = ksba_name_enum (name, idx)); idx++) { char *p = ksba_name_get_uri (name, idx); length += strlen (p?p:s) + 1; xfree (p); } string = xtrymalloc (length+1); if (string) { *string = 0; for (idx=0; (s = ksba_name_enum (name, idx)); idx++) { char *p = ksba_name_get_uri (name, idx); if (*string) strcat (string, "\x01"); strcat (string, p?p:s); xfree (p); } } ksba_name_release (name); return string; } /* Insert the CRL retrieved using URL into the cache specified by CACHE. The CRL itself will be read from the stream FP and is expected in binary format. Called by: crl_cache_load cmd_loadcrl --load-crl crl_cache_reload_crl cmd_isvalid cmd_checkcrl cmd_loadcrl --fetch-crl */ gpg_error_t crl_cache_insert (ctrl_t ctrl, const char *url, ksba_reader_t reader) { crl_cache_t cache = get_current_cache (); gpg_error_t err, err2; ksba_crl_t crl; char *fname = NULL; char *newfname = NULL; struct cdb_make cdb; int fd_cdb = -1; char *issuer = NULL; char *issuer_hash = NULL; ksba_isotime_t thisupdate, nextupdate; crl_cache_entry_t entry = NULL; crl_cache_entry_t e; gnupg_isotime_t current_time; char *checksum = NULL; int invalidate_crl = 0; int idx; const char *oid; int critical; char *trust_anchor = NULL; /* FIXME: We should acquire a mutex for the URL, so that we don't simultaneously enter the same CRL twice. However this needs to be interweaved with the checking function.*/ err2 = 0; err = ksba_crl_new (&crl); if (err) { log_error (_("ksba_crl_new failed: %s\n"), gpg_strerror (err)); goto leave; } err = ksba_crl_set_reader (crl, reader); if ( err ) { log_error (_("ksba_crl_set_reader failed: %s\n"), gpg_strerror (err)); goto leave; } /* Create a temporary cache file to load the CRL into. */ { char *tmpfname, *p; const char *nodename; #ifndef HAVE_W32_SYSTEM struct utsname utsbuf; #endif #ifdef HAVE_W32_SYSTEM nodename = "unknown"; #else if (uname (&utsbuf)) nodename = "unknown"; else nodename = utsbuf.nodename; #endif gpgrt_asprintf (&tmpfname, "crl-tmp-%s-%u-%p.db.tmp", nodename, (unsigned int)getpid (), &tmpfname); if (!tmpfname) { err = gpg_error_from_syserror (); goto leave; } for (p=tmpfname; *p; p++) if (*p == '/') *p = '.'; fname = make_filename (opt.homedir_cache, DBDIR_D, tmpfname, NULL); xfree (tmpfname); if (!gnupg_remove (fname)) log_info (_("removed stale temporary cache file '%s'\n"), fname); else if (errno != ENOENT) { err = gpg_error_from_syserror (); log_error (_("problem removing stale temporary cache file '%s': %s\n"), fname, gpg_strerror (err)); goto leave; } } - fd_cdb = open (fname, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644); + fd_cdb = gnupg_open (fname, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644); if (fd_cdb == -1) { err = gpg_error_from_errno (errno); log_error (_("error creating temporary cache file '%s': %s\n"), fname, strerror (errno)); goto leave; } cdb_make_start(&cdb, fd_cdb); err = crl_parse_insert (ctrl, crl, &cdb, fname, &issuer, thisupdate, nextupdate, &trust_anchor); if (err) { log_error (_("crl_parse_insert failed: %s\n"), gpg_strerror (err)); /* Error in cleanup ignored. */ cdb_make_finish (&cdb); goto leave; } /* Finish the database. */ if (cdb_make_finish (&cdb)) { err = gpg_error_from_errno (errno); log_error (_("error finishing temporary cache file '%s': %s\n"), fname, strerror (errno)); goto leave; } if (close (fd_cdb)) { err = gpg_error_from_errno (errno); log_error (_("error closing temporary cache file '%s': %s\n"), fname, strerror (errno)); goto leave; } fd_cdb = -1; /* Create a checksum. */ { unsigned char md5buf[16]; if (hash_dbfile (fname, md5buf)) { err = gpg_error (GPG_ERR_CHECKSUM); goto leave; } checksum = hexify_data (md5buf, 16, 0); } /* Check whether that new CRL is still not expired. */ gnupg_get_isotime (current_time); if (strcmp (nextupdate, current_time) < 0 ) { if (opt.force) log_info (_("WARNING: new CRL still too old; it expired on %s " "- loading anyway\n"), nextupdate); else { log_error (_("new CRL still too old; it expired on %s\n"), nextupdate); if (!err2) err2 = gpg_error (GPG_ERR_CRL_TOO_OLD); invalidate_crl |= 1; } } /* Check for unknown critical extensions. */ for (idx=0; !(err=ksba_crl_get_extension (crl, idx, &oid, &critical, NULL, NULL)); idx++) { if (!critical || !strcmp (oid, oidstr_authorityKeyIdentifier) || !strcmp (oid, oidstr_crlNumber) ) continue; log_error (_("unknown critical CRL extension %s\n"), oid); if (!err2) err2 = gpg_error (GPG_ERR_INV_CRL); invalidate_crl |= 2; } if (gpg_err_code (err) == GPG_ERR_EOF || gpg_err_code (err) == GPG_ERR_NO_DATA ) err = 0; if (err) { log_error (_("error reading CRL extensions: %s\n"), gpg_strerror (err)); err = gpg_error (GPG_ERR_INV_CRL); } /* Create an hex encoded SHA-1 hash of the issuer DN to be used as the key for the cache. */ issuer_hash = hashify_data (issuer, strlen (issuer)); /* Create an ENTRY. */ entry = xtrycalloc (1, sizeof *entry); if (!entry) { err = gpg_error_from_syserror (); goto leave; } entry->release_ptr = xtrymalloc (strlen (issuer_hash) + 1 + strlen (issuer) + 1 + strlen (url) + 1 + strlen (checksum) + 1); if (!entry->release_ptr) { err = gpg_error_from_syserror (); xfree (entry); entry = NULL; goto leave; } entry->issuer_hash = entry->release_ptr; entry->issuer = stpcpy (entry->issuer_hash, issuer_hash) + 1; entry->url = stpcpy (entry->issuer, issuer) + 1; entry->dbfile_hash = stpcpy (entry->url, url) + 1; strcpy (entry->dbfile_hash, checksum); gnupg_copy_time (entry->this_update, thisupdate); gnupg_copy_time (entry->next_update, nextupdate); gnupg_copy_time (entry->last_refresh, current_time); entry->crl_number = get_crl_number (crl); entry->authority_issuer = get_auth_key_id (crl, &entry->authority_serialno); entry->invalid = invalidate_crl; entry->user_trust_req = !!trust_anchor; entry->check_trust_anchor = trust_anchor; trust_anchor = NULL; /* Check whether we already have an entry for this issuer and mark it as deleted. We better use a loop, just in case duplicates got somehow into the list. */ for (e = cache->entries; (e=find_entry (e, entry->issuer_hash)); e = e->next) e->deleted = 1; /* Rename the temporary DB to the real name. */ newfname = make_db_file_name (entry->issuer_hash); if (opt.verbose) log_info (_("creating cache file '%s'\n"), newfname); /* Just in case close unused matching files. Actually we need this only under Windows but saving file descriptors is never bad. */ { int any; do { any = 0; for (e = cache->entries; e; e = e->next) if (!e->cdb_use_count && e->cdb && !strcmp (e->issuer_hash, entry->issuer_hash)) { int fd = cdb_fileno (e->cdb); cdb_free (e->cdb); xfree (e->cdb); e->cdb = NULL; if (close (fd)) log_error (_("error closing cache file: %s\n"), strerror(errno)); any = 1; break; } } while (any); } #ifdef HAVE_W32_SYSTEM gnupg_remove (newfname); #endif if (rename (fname, newfname)) { err = gpg_error_from_syserror (); log_error (_("problem renaming '%s' to '%s': %s\n"), fname, newfname, gpg_strerror (err)); goto leave; } xfree (fname); fname = NULL; /*(let the cleanup code not try to remove it)*/ /* Link the new entry in. */ entry->next = cache->entries; cache->entries = entry; entry = NULL; err = update_dir (cache); if (err) { log_error (_("updating the DIR file failed - " "cache entry will get lost with the next program start\n")); err = 0; /* Keep on running. */ } leave: release_one_cache_entry (entry); if (fd_cdb != -1) close (fd_cdb); if (fname) { gnupg_remove (fname); xfree (fname); } xfree (newfname); ksba_crl_release (crl); xfree (issuer); xfree (issuer_hash); xfree (checksum); xfree (trust_anchor); return err ? err : err2; } /* Print one cached entry E in a human readable format to stream FP. Return 0 on success. */ static gpg_error_t list_one_crl_entry (crl_cache_t cache, crl_cache_entry_t e, estream_t fp) { struct cdb_find cdbfp; struct cdb *cdb; int rc; int warn = 0; const unsigned char *s; es_fputs ("--------------------------------------------------------\n", fp ); es_fprintf (fp, _("Begin CRL dump (retrieved via %s)\n"), e->url ); es_fprintf (fp, " Issuer:\t%s\n", e->issuer ); es_fprintf (fp, " Issuer Hash:\t%s\n", e->issuer_hash ); es_fprintf (fp, " This Update:\t%s\n", e->this_update ); es_fprintf (fp, " Next Update:\t%s\n", e->next_update ); es_fprintf (fp, " CRL Number :\t%s\n", e->crl_number? e->crl_number: "none"); es_fprintf (fp, " AuthKeyId :\t%s\n", e->authority_serialno? e->authority_serialno:"none"); if (e->authority_serialno && e->authority_issuer) { es_fputs (" \t", fp); for (s=e->authority_issuer; *s; s++) if (*s == '\x01') es_fputs ("\n \t", fp); else es_putc (*s, fp); es_putc ('\n', fp); } es_fprintf (fp, " Trust Check:\t%s\n", !e->user_trust_req? "[system]" : e->check_trust_anchor? e->check_trust_anchor:"[missing]"); if ((e->invalid & 1)) es_fprintf (fp, _(" ERROR: The CRL will not be used " "because it was still too old after an update!\n")); if ((e->invalid & 2)) es_fprintf (fp, _(" ERROR: The CRL will not be used " "due to an unknown critical extension!\n")); if ((e->invalid & ~3)) es_fprintf (fp, _(" ERROR: The CRL will not be used\n")); cdb = lock_db_file (cache, e); if (!cdb) return gpg_error (GPG_ERR_GENERAL); if (!e->dbfile_checked) es_fprintf (fp, _(" ERROR: This cached CRL may have been tampered with!\n")); es_putc ('\n', fp); rc = cdb_findinit (&cdbfp, cdb, NULL, 0); while (!rc && (rc=cdb_findnext (&cdbfp)) > 0 ) { unsigned char keyrecord[256]; unsigned char record[16]; int reason; int any = 0; cdbi_t n; cdbi_t i; rc = 0; n = cdb_datalen (cdb); if (n != 16) { log_error (_(" WARNING: invalid cache record length\n")); warn = 1; continue; } if (cdb_read (cdb, record, n, cdb_datapos (cdb))) { log_error (_("problem reading cache record: %s\n"), strerror (errno)); warn = 1; continue; } n = cdb_keylen (cdb); if (n > sizeof keyrecord) n = sizeof keyrecord; if (cdb_read (cdb, keyrecord, n, cdb_keypos (cdb))) { log_error (_("problem reading cache key: %s\n"), strerror (errno)); warn = 1; continue; } reason = *record; es_fputs (" ", fp); for (i = 0; i < n; i++) es_fprintf (fp, "%02X", keyrecord[i]); es_fputs (":\t reasons( ", fp); if (reason & KSBA_CRLREASON_UNSPECIFIED) es_fputs( "unspecified ", fp ), any = 1; if (reason & KSBA_CRLREASON_KEY_COMPROMISE ) es_fputs( "key_compromise ", fp ), any = 1; if (reason & KSBA_CRLREASON_CA_COMPROMISE ) es_fputs( "ca_compromise ", fp ), any = 1; if (reason & KSBA_CRLREASON_AFFILIATION_CHANGED ) es_fputs( "affiliation_changed ", fp ), any = 1; if (reason & KSBA_CRLREASON_SUPERSEDED ) es_fputs( "superseded", fp ), any = 1; if (reason & KSBA_CRLREASON_CESSATION_OF_OPERATION ) es_fputs( "cessation_of_operation", fp ), any = 1; if (reason & KSBA_CRLREASON_CERTIFICATE_HOLD ) es_fputs( "certificate_hold", fp ), any = 1; if (reason && !any) es_fputs( "other", fp ); es_fprintf (fp, ") rdate: %.15s\n", record+1); } if (rc) log_error (_("error reading cache entry from db: %s\n"), strerror (rc)); unlock_db_file (cache, e); es_fprintf (fp, _("End CRL dump\n") ); es_putc ('\n', fp); return (rc||warn)? gpg_error (GPG_ERR_GENERAL) : 0; } /* Print the contents of the CRL CACHE in a human readable format to stream FP. */ gpg_error_t crl_cache_list (estream_t fp) { crl_cache_t cache = get_current_cache (); crl_cache_entry_t entry; gpg_error_t err = 0; for (entry = cache->entries; entry && !entry->deleted && !err; entry = entry->next ) err = list_one_crl_entry (cache, entry, fp); return err; } /* Load the CRL containing the file named FILENAME into our CRL cache. */ gpg_error_t crl_cache_load (ctrl_t ctrl, const char *filename) { gpg_error_t err; estream_t fp; ksba_reader_t reader; fp = es_fopen (filename, "rb"); if (!fp) { err = gpg_error_from_errno (errno); log_error (_("can't open '%s': %s\n"), filename, strerror (errno)); return err; } err = create_estream_ksba_reader (&reader, fp); if (!err) { err = crl_cache_insert (ctrl, filename, reader); ksba_reader_release (reader); } es_fclose (fp); return err; } /* Locate the corresponding CRL for the certificate CERT, read and verify the CRL and store it in the cache. */ gpg_error_t crl_cache_reload_crl (ctrl_t ctrl, ksba_cert_t cert) { gpg_error_t err; ksba_reader_t reader = NULL; char *issuer = NULL; ksba_name_t distpoint = NULL; ksba_name_t issuername = NULL; char *distpoint_uri = NULL; char *issuername_uri = NULL; int any_dist_point = 0; int seq; /* Loop over all distribution points, get the CRLs and put them into the cache. */ if (opt.verbose) log_info ("checking distribution points\n"); seq = 0; while ( !(err = ksba_cert_get_crl_dist_point (cert, seq++, &distpoint, &issuername, NULL ))) { int name_seq; gpg_error_t last_err = 0; if (!distpoint && !issuername) { if (opt.verbose) log_info ("no issuer name and no distribution point\n"); break; /* Not allowed; i.e. an invalid certificate. We give up here and hope that the default method returns a suitable CRL. */ } xfree (issuername_uri); issuername_uri = NULL; /* Get the URIs. We do this in a loop to iterate over all names in the crlDP. */ for (name_seq=0; ksba_name_enum (distpoint, name_seq); name_seq++) { xfree (distpoint_uri); distpoint_uri = NULL; distpoint_uri = ksba_name_get_uri (distpoint, name_seq); if (!distpoint_uri) continue; if (!strncmp (distpoint_uri, "ldap:", 5) || !strncmp (distpoint_uri, "ldaps:", 6)) { if (opt.ignore_ldap_dp) continue; } else if (!strncmp (distpoint_uri, "http:", 5) || !strncmp (distpoint_uri, "https:", 6)) { if (opt.ignore_http_dp) continue; } else continue; /* Skip unknown schemes. */ any_dist_point = 1; if (opt.verbose) log_info ("fetching CRL from '%s'\n", distpoint_uri); err = crl_fetch (ctrl, distpoint_uri, &reader); if (err) { log_error (_("crl_fetch via DP failed: %s\n"), gpg_strerror (err)); last_err = err; continue; /* with the next name. */ } if (opt.verbose) log_info ("inserting CRL (reader %p)\n", reader); err = crl_cache_insert (ctrl, distpoint_uri, reader); if (err) { log_error (_("crl_cache_insert via DP failed: %s\n"), gpg_strerror (err)); last_err = err; continue; /* with the next name. */ } last_err = 0; break; /* Ready. */ } if (last_err) { err = last_err; goto leave; } ksba_name_release (distpoint); distpoint = NULL; /* We don't do anything with issuername_uri yet but we keep the code for documentation. */ issuername_uri = ksba_name_get_uri (issuername, 0); ksba_name_release (issuername); issuername = NULL; /* Close the reader. */ crl_close_reader (reader); reader = NULL; } if (gpg_err_code (err) == GPG_ERR_EOF) err = 0; /* If we did not found any distpoint, try something reasonable. */ if (!any_dist_point ) { if (opt.verbose) log_info ("no distribution point - trying issuer name\n"); crl_close_reader (reader); reader = NULL; issuer = ksba_cert_get_issuer (cert, 0); if (!issuer) { log_error ("oops: issuer missing in certificate\n"); err = gpg_error (GPG_ERR_INV_CERT_OBJ); goto leave; } if (opt.verbose) log_info ("fetching CRL from default location\n"); err = crl_fetch_default (ctrl, issuer, &reader); if (err) { log_error ("crl_fetch via issuer failed: %s\n", gpg_strerror (err)); goto leave; } if (opt.verbose) log_info ("inserting CRL (reader %p)\n", reader); err = crl_cache_insert (ctrl, "default location(s)", reader); if (err) { log_error (_("crl_cache_insert via issuer failed: %s\n"), gpg_strerror (err)); goto leave; } } leave: crl_close_reader (reader); xfree (distpoint_uri); xfree (issuername_uri); ksba_name_release (distpoint); ksba_name_release (issuername); ksba_free (issuer); return err; } diff --git a/g10/gpg.c b/g10/gpg.c index 412867b91..1b1d18969 100644 --- a/g10/gpg.c +++ b/g10/gpg.c @@ -1,5614 +1,5614 @@ /* gpg.c - The GnuPG OpenPGP tool * Copyright (C) 1998-2020 Free Software Foundation, Inc. * Copyright (C) 1997-2019 Werner Koch * Copyright (C) 2015-2020 g10 Code GmbH * * This file is part of GnuPG. * * GnuPG is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * GnuPG is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * SPDX-License-Identifier: GPL-3.0-or-later */ #include #include #include #include #include #include #include #ifdef HAVE_STAT #include /* for stat() */ #endif #include #ifdef HAVE_W32_SYSTEM # ifdef HAVE_WINSOCK2_H # include # endif # include #endif #include #define INCLUDED_BY_MAIN_MODULE 1 #include "gpg.h" #include #include "../common/iobuf.h" #include "../common/util.h" #include "packet.h" #include "../common/membuf.h" #include "main.h" #include "options.h" #include "keydb.h" #include "trustdb.h" #include "filter.h" #include "../common/ttyio.h" #include "../common/i18n.h" #include "../common/sysutils.h" #include "../common/status.h" #include "keyserver-internal.h" #include "exec.h" #include "../common/gc-opt-flags.h" #include "../common/asshelp.h" #include "call-dirmngr.h" #include "tofu.h" #include "objcache.h" #include "../common/init.h" #include "../common/mbox-util.h" #include "../common/shareddefs.h" #include "../common/compliance.h" #if defined(HAVE_DOSISH_SYSTEM) || defined(__CYGWIN__) #define MY_O_BINARY O_BINARY #ifndef S_IRGRP # define S_IRGRP 0 # define S_IWGRP 0 #endif #else #define MY_O_BINARY 0 #endif #ifdef __MINGW32__ int _dowildcard = -1; #endif enum cmd_and_opt_values { aNull = 0, oArmor = 'a', aDetachedSign = 'b', aSym = 'c', aDecrypt = 'd', aEncr = 'e', oRecipientFile = 'f', oHiddenRecipientFile = 'F', oInteractive = 'i', aListKeys = 'k', oDryRun = 'n', oOutput = 'o', oQuiet = 'q', oRecipient = 'r', oHiddenRecipient = 'R', aSign = 's', oTextmodeShort= 't', oLocalUser = 'u', oVerbose = 'v', oCompress = 'z', oSetNotation = 'N', aListSecretKeys = 'K', oBatch = 500, oMaxOutput, oInputSizeHint, oChunkSize, oSigNotation, oCertNotation, oShowNotation, oNoShowNotation, oKnownNotation, aEncrFiles, aEncrSym, aDecryptFiles, aClearsign, aStore, aQuickKeygen, aFullKeygen, aKeygen, aSignEncr, aSignEncrSym, aSignSym, aSignKey, aLSignKey, aQuickSignKey, aQuickLSignKey, aQuickAddUid, aQuickAddKey, aQuickRevUid, aQuickSetExpire, aQuickSetPrimaryUid, aListConfig, aListGcryptConfig, aGPGConfList, aGPGConfTest, aListPackets, aEditKey, aDeleteKeys, aDeleteSecretKeys, aDeleteSecretAndPublicKeys, aImport, aFastImport, aVerify, aVerifyFiles, aListSigs, aSendKeys, aRecvKeys, aLocateKeys, aLocateExtKeys, aSearchKeys, aRefreshKeys, aFetchKeys, aShowKeys, aExport, aExportSecret, aExportSecretSub, aExportSshKey, aCheckKeys, aGenRevoke, aDesigRevoke, aPrimegen, aPrintMD, aPrintMDs, aCheckTrustDB, aUpdateTrustDB, aFixTrustDB, aListTrustDB, aListTrustPath, aExportOwnerTrust, aImportOwnerTrust, aDeArmor, aEnArmor, aGenRandom, aRebuildKeydbCaches, aCardStatus, aCardEdit, aChangePIN, aPasswd, aServer, aTOFUPolicy, oMimemode, oTextmode, oNoTextmode, oExpert, oNoExpert, oDefSigExpire, oAskSigExpire, oNoAskSigExpire, oDefCertExpire, oAskCertExpire, oNoAskCertExpire, oDefCertLevel, oMinCertLevel, oAskCertLevel, oNoAskCertLevel, oFingerprint, oWithFingerprint, oWithSubkeyFingerprint, oWithICAOSpelling, oWithKeygrip, oWithKeyScreening, oWithSecret, oWithWKDHash, oWithColons, oWithKeyData, oWithKeyOrigin, oWithTofuInfo, oWithSigList, oWithSigCheck, oAnswerYes, oAnswerNo, oKeyring, oPrimaryKeyring, oSecretKeyring, oShowKeyring, oDefaultKey, oDefRecipient, oDefRecipientSelf, oNoDefRecipient, oTrySecretKey, oOptions, oDebug, oDebugLevel, oDebugAll, oDebugIOLBF, oDebugSetIobufSize, oDebugAllowLargeChunks, oStatusFD, oStatusFile, oAttributeFD, oAttributeFile, oEmitVersion, oNoEmitVersion, oCompletesNeeded, oMarginalsNeeded, oMaxCertDepth, oLoadExtension, oCompliance, oGnuPG, oRFC2440, oRFC4880, oRFC4880bis, oOpenPGP, oPGP7, oPGP8, oDE_VS, oRFC2440Text, oNoRFC2440Text, oCipherAlgo, oAEADAlgo, oDigestAlgo, oCertDigestAlgo, oCompressAlgo, oCompressLevel, oBZ2CompressLevel, oBZ2DecompressLowmem, oPassphrase, oPassphraseFD, oPassphraseFile, oPassphraseRepeat, oPinentryMode, oCommandFD, oCommandFile, oQuickRandom, oNoVerbose, oTrustDBName, oNoSecmemWarn, oRequireSecmem, oNoRequireSecmem, oNoPermissionWarn, oNoArmor, oNoDefKeyring, oNoKeyring, oNoGreeting, oNoTTY, oNoOptions, oNoBatch, oHomedir, oSkipVerify, oSkipHiddenRecipients, oNoSkipHiddenRecipients, oAlwaysTrust, oTrustModel, oForceOwnertrust, oSetFilename, oForYourEyesOnly, oNoForYourEyesOnly, oSetPolicyURL, oSigPolicyURL, oCertPolicyURL, oShowPolicyURL, oNoShowPolicyURL, oSigKeyserverURL, oUseEmbeddedFilename, oNoUseEmbeddedFilename, oComment, oDefaultComment, oNoComments, oThrowKeyids, oNoThrowKeyids, oShowPhotos, oNoShowPhotos, oPhotoViewer, oForceAEAD, oS2KMode, oS2KDigest, oS2KCipher, oS2KCount, oDisplayCharset, oNotDashEscaped, oEscapeFrom, oNoEscapeFrom, oLockOnce, oLockMultiple, oLockNever, oKeyServer, oKeyServerOptions, oImportOptions, oImportFilter, oExportOptions, oExportFilter, oListOptions, oVerifyOptions, oTempDir, oExecPath, oEncryptTo, oHiddenEncryptTo, oNoEncryptTo, oEncryptToDefaultKey, oLoggerFD, oLoggerFile, oUtf8Strings, oNoUtf8Strings, oDisableCipherAlgo, oDisablePubkeyAlgo, oAllowNonSelfsignedUID, oNoAllowNonSelfsignedUID, oAllowFreeformUID, oNoAllowFreeformUID, oAllowSecretKeyImport, oEnableSpecialFilenames, oNoLiteral, oSetFilesize, oHonorHttpProxy, oFastListMode, oListOnly, oIgnoreTimeConflict, oIgnoreValidFrom, oIgnoreCrcError, oIgnoreMDCError, oShowSessionKey, oOverrideSessionKey, oOverrideSessionKeyFD, oNoRandomSeedFile, oAutoKeyRetrieve, oNoAutoKeyRetrieve, oAutoKeyImport, oNoAutoKeyImport, oUseAgent, oNoUseAgent, oGpgAgentInfo, oUseKeyboxd, oMergeOnly, oTryAllSecrets, oTrustedKey, oNoExpensiveTrustChecks, oFixedListMode, oLegacyListMode, oNoSigCache, oAutoCheckTrustDB, oNoAutoCheckTrustDB, oPreservePermissions, oDefaultPreferenceList, oDefaultKeyserverURL, oPersonalCipherPreferences, oPersonalAEADPreferences, oPersonalDigestPreferences, oPersonalCompressPreferences, oAgentProgram, oKeyboxdProgram, oDirmngrProgram, oDisableDirmngr, oDisplay, oTTYname, oTTYtype, oLCctype, oLCmessages, oXauthority, oGroup, oUnGroup, oNoGroups, oStrict, oNoStrict, oMangleDosFilenames, oNoMangleDosFilenames, oEnableProgressFilter, oMultifile, oKeyidFormat, oExitOnStatusWriteError, oLimitCardInsertTries, oReaderPort, octapiDriver, opcscDriver, oDisableCCID, oRequireCrossCert, oNoRequireCrossCert, oAutoKeyLocate, oNoAutoKeyLocate, oEnableLargeRSA, oDisableLargeRSA, oEnableDSA2, oDisableDSA2, oAllowWeakDigestAlgos, oAllowWeakKeySignatures, oFakedSystemTime, oNoAutostart, oPrintPKARecords, oPrintDANERecords, oTOFUDefaultPolicy, oTOFUDBFormat, oDefaultNewKeyAlgo, oWeakDigest, oUnwrap, oOnlySignTextIDs, oDisableSignerUID, oSender, oKeyOrigin, oRequestOrigin, oNoSymkeyCache, oUseOnlyOpenPGPCard, oFullTimestrings, oIncludeKeyBlock, oNoIncludeKeyBlock, oChUid, oNoop }; static gpgrt_opt_t opts[] = { ARGPARSE_group (300, N_("@Commands:\n ")), ARGPARSE_c (aSign, "sign", N_("make a signature")), ARGPARSE_c (aClearsign, "clear-sign", N_("make a clear text signature")), ARGPARSE_c (aClearsign, "clearsign", "@"), ARGPARSE_c (aDetachedSign, "detach-sign", N_("make a detached signature")), ARGPARSE_c (aEncr, "encrypt", N_("encrypt data")), ARGPARSE_c (aEncrFiles, "encrypt-files", "@"), ARGPARSE_c (aSym, "symmetric", N_("encryption only with symmetric cipher")), ARGPARSE_c (aStore, "store", "@"), ARGPARSE_c (aDecrypt, "decrypt", N_("decrypt data (default)")), ARGPARSE_c (aDecryptFiles, "decrypt-files", "@"), ARGPARSE_c (aVerify, "verify" , N_("verify a signature")), ARGPARSE_c (aVerifyFiles, "verify-files" , "@" ), ARGPARSE_c (aListKeys, "list-keys", N_("list keys")), ARGPARSE_c (aListKeys, "list-public-keys", "@" ), ARGPARSE_c (aListSigs, "list-signatures", N_("list keys and signatures")), ARGPARSE_c (aListSigs, "list-sigs", "@"), ARGPARSE_c (aCheckKeys, "check-signatures", N_("list and check key signatures")), ARGPARSE_c (aCheckKeys, "check-sigs", "@"), ARGPARSE_c (oFingerprint, "fingerprint", N_("list keys and fingerprints")), ARGPARSE_c (aListSecretKeys, "list-secret-keys", N_("list secret keys")), ARGPARSE_c (aKeygen, "generate-key", N_("generate a new key pair")), ARGPARSE_c (aKeygen, "gen-key", "@"), ARGPARSE_c (aQuickKeygen, "quick-generate-key" , N_("quickly generate a new key pair")), ARGPARSE_c (aQuickKeygen, "quick-gen-key", "@"), ARGPARSE_c (aQuickAddUid, "quick-add-uid", N_("quickly add a new user-id")), ARGPARSE_c (aQuickAddUid, "quick-adduid", "@"), ARGPARSE_c (aQuickAddKey, "quick-add-key", "@"), ARGPARSE_c (aQuickAddKey, "quick-addkey", "@"), ARGPARSE_c (aQuickRevUid, "quick-revoke-uid", N_("quickly revoke a user-id")), ARGPARSE_c (aQuickRevUid, "quick-revuid", "@"), ARGPARSE_c (aQuickSetExpire, "quick-set-expire", N_("quickly set a new expiration date")), ARGPARSE_c (aQuickSetPrimaryUid, "quick-set-primary-uid", "@"), ARGPARSE_c (aFullKeygen, "full-generate-key" , N_("full featured key pair generation")), ARGPARSE_c (aFullKeygen, "full-gen-key", "@"), ARGPARSE_c (aGenRevoke, "generate-revocation", N_("generate a revocation certificate")), ARGPARSE_c (aGenRevoke, "gen-revoke", "@"), ARGPARSE_c (aDeleteKeys,"delete-keys", N_("remove keys from the public keyring")), ARGPARSE_c (aDeleteSecretKeys, "delete-secret-keys", N_("remove keys from the secret keyring")), ARGPARSE_c (aQuickSignKey, "quick-sign-key" , N_("quickly sign a key")), ARGPARSE_c (aQuickLSignKey, "quick-lsign-key", N_("quickly sign a key locally")), ARGPARSE_c (aSignKey, "sign-key" ,N_("sign a key")), ARGPARSE_c (aLSignKey, "lsign-key" ,N_("sign a key locally")), ARGPARSE_c (aEditKey, "edit-key" ,N_("sign or edit a key")), ARGPARSE_c (aEditKey, "key-edit" ,"@"), ARGPARSE_c (aPasswd, "change-passphrase", N_("change a passphrase")), ARGPARSE_c (aPasswd, "passwd", "@"), ARGPARSE_c (aDesigRevoke, "generate-designated-revocation", "@"), ARGPARSE_c (aDesigRevoke, "desig-revoke","@" ), ARGPARSE_c (aExport, "export" , N_("export keys") ), ARGPARSE_c (aSendKeys, "send-keys" , N_("export keys to a keyserver") ), ARGPARSE_c (aRecvKeys, "receive-keys" , N_("import keys from a keyserver") ), ARGPARSE_c (aRecvKeys, "recv-keys" , "@"), ARGPARSE_c (aSearchKeys, "search-keys" , N_("search for keys on a keyserver") ), ARGPARSE_c (aRefreshKeys, "refresh-keys", N_("update all keys from a keyserver")), ARGPARSE_c (aLocateKeys, "locate-keys", "@"), ARGPARSE_c (aLocateExtKeys, "locate-external-keys", "@"), ARGPARSE_c (aFetchKeys, "fetch-keys" , "@" ), ARGPARSE_c (aShowKeys, "show-keys" , "@" ), ARGPARSE_c (aExportSecret, "export-secret-keys" , "@" ), ARGPARSE_c (aExportSecretSub, "export-secret-subkeys" , "@" ), ARGPARSE_c (aExportSshKey, "export-ssh-key", "@" ), ARGPARSE_c (aImport, "import", N_("import/merge keys")), ARGPARSE_c (aFastImport, "fast-import", "@"), #ifdef ENABLE_CARD_SUPPORT ARGPARSE_c (aCardStatus, "card-status", N_("print the card status")), ARGPARSE_c (aCardEdit, "edit-card", N_("change data on a card")), ARGPARSE_c (aCardEdit, "card-edit", "@"), ARGPARSE_c (aChangePIN, "change-pin", N_("change a card's PIN")), #endif ARGPARSE_c (aListConfig, "list-config", "@"), ARGPARSE_c (aListGcryptConfig, "list-gcrypt-config", "@"), ARGPARSE_c (aGPGConfList, "gpgconf-list", "@" ), ARGPARSE_c (aGPGConfTest, "gpgconf-test", "@" ), ARGPARSE_c (aListPackets, "list-packets","@"), #ifndef NO_TRUST_MODELS ARGPARSE_c (aExportOwnerTrust, "export-ownertrust", "@"), ARGPARSE_c (aImportOwnerTrust, "import-ownertrust", "@"), ARGPARSE_c (aUpdateTrustDB,"update-trustdb", N_("update the trust database")), ARGPARSE_c (aCheckTrustDB, "check-trustdb", "@"), ARGPARSE_c (aFixTrustDB, "fix-trustdb", "@"), ARGPARSE_c (aListTrustDB, "list-trustdb", "@"), #endif ARGPARSE_c (aDeArmor, "dearmor", "@"), ARGPARSE_c (aDeArmor, "dearmour", "@"), ARGPARSE_c (aEnArmor, "enarmor", "@"), ARGPARSE_c (aEnArmor, "enarmour", "@"), ARGPARSE_c (aPrintMD, "print-md", N_("print message digests")), ARGPARSE_c (aPrintMDs, "print-mds", "@"), /* old */ ARGPARSE_c (aPrimegen, "gen-prime", "@" ), ARGPARSE_c (aGenRandom,"gen-random", "@" ), ARGPARSE_c (aServer, "server", N_("run in server mode")), ARGPARSE_c (aTOFUPolicy, "tofu-policy", N_("|VALUE|set the TOFU policy for a key")), /* Not yet used: ARGPARSE_c (aListTrustPath, "list-trust-path", "@"), */ ARGPARSE_c (aDeleteSecretAndPublicKeys, "delete-secret-and-public-keys", "@"), ARGPARSE_c (aRebuildKeydbCaches, "rebuild-keydb-caches", "@"), ARGPARSE_c (aListKeys, "list-key", "@"), /* alias */ ARGPARSE_c (aListSigs, "list-sig", "@"), /* alias */ ARGPARSE_c (aCheckKeys, "check-sig", "@"), /* alias */ ARGPARSE_c (aShowKeys, "show-key", "@"), /* alias */ ARGPARSE_header ("Monitor", N_("Options controlling the diagnostic output")), ARGPARSE_s_n (oVerbose, "verbose", N_("verbose")), ARGPARSE_s_n (oNoVerbose, "no-verbose", "@"), ARGPARSE_s_n (oQuiet, "quiet", N_("be somewhat more quiet")), ARGPARSE_s_n (oNoTTY, "no-tty", "@"), ARGPARSE_s_n (oNoGreeting, "no-greeting", "@"), ARGPARSE_s_s (oDebug, "debug", "@"), ARGPARSE_s_s (oDebugLevel, "debug-level", "@"), ARGPARSE_s_n (oDebugAll, "debug-all", "@"), ARGPARSE_s_n (oDebugIOLBF, "debug-iolbf", "@"), ARGPARSE_s_u (oDebugSetIobufSize, "debug-set-iobuf-size", "@"), ARGPARSE_s_u (oDebugAllowLargeChunks, "debug-allow-large-chunks", "@"), ARGPARSE_s_s (oDisplayCharset, "display-charset", "@"), ARGPARSE_s_s (oDisplayCharset, "charset", "@"), ARGPARSE_conffile (oOptions, "options", N_("|FILE|read options from FILE")), ARGPARSE_noconffile (oNoOptions, "no-options", "@"), ARGPARSE_s_i (oLoggerFD, "logger-fd", "@"), ARGPARSE_s_s (oLoggerFile, "log-file", N_("|FILE|write server mode logs to FILE")), ARGPARSE_s_s (oLoggerFile, "logger-file", "@"), /* 1.4 compatibility. */ ARGPARSE_s_n (oQuickRandom, "debug-quick-random", "@"), ARGPARSE_header ("Configuration", N_("Options controlling the configuration")), ARGPARSE_s_s (oHomedir, "homedir", "@"), ARGPARSE_s_s (oFakedSystemTime, "faked-system-time", "@"), ARGPARSE_s_s (oDefaultKey, "default-key", N_("|NAME|use NAME as default secret key")), ARGPARSE_s_s (oEncryptTo, "encrypt-to", N_("|NAME|encrypt to user ID NAME as well")), ARGPARSE_s_n (oNoEncryptTo, "no-encrypt-to", "@"), ARGPARSE_s_s (oHiddenEncryptTo, "hidden-encrypt-to", "@"), ARGPARSE_s_n (oEncryptToDefaultKey, "encrypt-to-default-key", "@"), ARGPARSE_s_s (oDefRecipient, "default-recipient", "@"), ARGPARSE_s_n (oDefRecipientSelf, "default-recipient-self", "@"), ARGPARSE_s_n (oNoDefRecipient, "no-default-recipient", "@"), ARGPARSE_s_s (oGroup, "group", N_("|SPEC|set up email aliases")), ARGPARSE_s_s (oUnGroup, "ungroup", "@"), ARGPARSE_s_n (oNoGroups, "no-groups", "@"), ARGPARSE_s_s (oCompliance, "compliance", "@"), ARGPARSE_s_n (oGnuPG, "gnupg", "@"), ARGPARSE_s_n (oGnuPG, "no-pgp2", "@"), ARGPARSE_s_n (oGnuPG, "no-pgp6", "@"), ARGPARSE_s_n (oGnuPG, "no-pgp7", "@"), ARGPARSE_s_n (oGnuPG, "no-pgp8", "@"), ARGPARSE_s_n (oRFC2440, "rfc2440", "@"), ARGPARSE_s_n (oRFC4880, "rfc4880", "@"), ARGPARSE_s_n (oRFC4880bis, "rfc4880bis", "@"), ARGPARSE_s_n (oOpenPGP, "openpgp", N_("use strict OpenPGP behavior")), ARGPARSE_s_n (oPGP7, "pgp6", "@"), ARGPARSE_s_n (oPGP7, "pgp7", "@"), ARGPARSE_s_n (oPGP8, "pgp8", "@"), ARGPARSE_s_s (oDefaultNewKeyAlgo, "default-new-key-algo", "@"), #ifndef NO_TRUST_MODELS ARGPARSE_s_n (oAlwaysTrust, "always-trust", "@"), #endif ARGPARSE_s_s (oTrustModel, "trust-model", "@"), ARGPARSE_s_s (oPhotoViewer, "photo-viewer", "@"), ARGPARSE_s_s (oKnownNotation, "known-notation", "@"), ARGPARSE_s_s (oAgentProgram, "agent-program", "@"), ARGPARSE_s_s (oKeyboxdProgram, "keyboxd-program", "@"), ARGPARSE_s_s (oDirmngrProgram, "dirmngr-program", "@"), ARGPARSE_s_n (oExitOnStatusWriteError, "exit-on-status-write-error", "@"), ARGPARSE_s_i (oLimitCardInsertTries, "limit-card-insert-tries", "@"), ARGPARSE_s_n (oEnableProgressFilter, "enable-progress-filter", "@"), ARGPARSE_s_s (oTempDir, "temp-directory", "@"), ARGPARSE_s_s (oExecPath, "exec-path", "@"), ARGPARSE_s_n (oExpert, "expert", "@"), ARGPARSE_s_n (oNoExpert, "no-expert", "@"), ARGPARSE_s_n (oNoSecmemWarn, "no-secmem-warning", "@"), ARGPARSE_s_n (oRequireSecmem, "require-secmem", "@"), ARGPARSE_s_n (oNoRequireSecmem, "no-require-secmem", "@"), ARGPARSE_s_n (oNoPermissionWarn, "no-permission-warning", "@"), ARGPARSE_s_n (oDryRun, "dry-run", N_("do not make any changes")), ARGPARSE_s_n (oInteractive, "interactive", N_("prompt before overwriting")), ARGPARSE_s_s (oDefSigExpire, "default-sig-expire", "@"), ARGPARSE_s_n (oAskSigExpire, "ask-sig-expire", "@"), ARGPARSE_s_n (oNoAskSigExpire, "no-ask-sig-expire", "@"), ARGPARSE_s_s (oDefCertExpire, "default-cert-expire", "@"), ARGPARSE_s_n (oAskCertExpire, "ask-cert-expire", "@"), ARGPARSE_s_n (oNoAskCertExpire, "no-ask-cert-expire", "@"), ARGPARSE_s_i (oDefCertLevel, "default-cert-level", "@"), ARGPARSE_s_i (oMinCertLevel, "min-cert-level", "@"), ARGPARSE_s_n (oAskCertLevel, "ask-cert-level", "@"), ARGPARSE_s_n (oNoAskCertLevel, "no-ask-cert-level", "@"), ARGPARSE_s_n (oOnlySignTextIDs, "only-sign-text-ids", "@"), ARGPARSE_s_n (oEnableLargeRSA, "enable-large-rsa", "@"), ARGPARSE_s_n (oDisableLargeRSA, "disable-large-rsa", "@"), ARGPARSE_s_n (oEnableDSA2, "enable-dsa2", "@"), ARGPARSE_s_n (oDisableDSA2, "disable-dsa2", "@"), ARGPARSE_s_s (oPersonalCipherPreferences, "personal-cipher-preferences","@"), ARGPARSE_s_s (oPersonalAEADPreferences, "personal-aead-preferences","@"), ARGPARSE_s_s (oPersonalDigestPreferences, "personal-digest-preferences","@"), ARGPARSE_s_s (oPersonalCompressPreferences, "personal-compress-preferences", "@"), ARGPARSE_s_s (oDefaultPreferenceList, "default-preference-list", "@"), ARGPARSE_s_s (oDefaultKeyserverURL, "default-keyserver-url", "@"), ARGPARSE_s_n (oNoExpensiveTrustChecks, "no-expensive-trust-checks", "@"), ARGPARSE_s_n (oAllowNonSelfsignedUID, "allow-non-selfsigned-uid", "@"), ARGPARSE_s_n (oNoAllowNonSelfsignedUID, "no-allow-non-selfsigned-uid", "@"), ARGPARSE_s_n (oAllowFreeformUID, "allow-freeform-uid", "@"), ARGPARSE_s_n (oNoAllowFreeformUID, "no-allow-freeform-uid", "@"), ARGPARSE_s_n (oPreservePermissions, "preserve-permissions", "@"), ARGPARSE_s_i (oDefCertLevel, "default-cert-check-level", "@"), /* old */ ARGPARSE_s_s (oTOFUDefaultPolicy, "tofu-default-policy", "@"), ARGPARSE_s_n (oLockOnce, "lock-once", "@"), ARGPARSE_s_n (oLockMultiple, "lock-multiple", "@"), ARGPARSE_s_n (oLockNever, "lock-never", "@"), ARGPARSE_s_s (oCompressAlgo,"compress-algo", "@"), ARGPARSE_s_s (oCompressAlgo, "compression-algo", "@"), /* Alias */ ARGPARSE_s_n (oBZ2DecompressLowmem, "bzip2-decompress-lowmem", "@"), ARGPARSE_s_i (oCompletesNeeded, "completes-needed", "@"), ARGPARSE_s_i (oMarginalsNeeded, "marginals-needed", "@"), ARGPARSE_s_i (oMaxCertDepth, "max-cert-depth", "@" ), #ifndef NO_TRUST_MODELS ARGPARSE_s_s (oTrustDBName, "trustdb-name", "@"), ARGPARSE_s_n (oAutoCheckTrustDB, "auto-check-trustdb", "@"), ARGPARSE_s_n (oNoAutoCheckTrustDB, "no-auto-check-trustdb", "@"), ARGPARSE_s_s (oForceOwnertrust, "force-ownertrust", "@"), #endif ARGPARSE_header ("Input", N_("Options controlling the input")), ARGPARSE_s_n (oMultifile, "multifile", "@"), ARGPARSE_s_s (oInputSizeHint, "input-size-hint", "@"), ARGPARSE_s_n (oUtf8Strings, "utf8-strings", "@"), ARGPARSE_s_n (oNoUtf8Strings, "no-utf8-strings", "@"), ARGPARSE_p_u (oSetFilesize, "set-filesize", "@"), ARGPARSE_s_n (oNoLiteral, "no-literal", "@"), ARGPARSE_s_s (oSetNotation, "set-notation", "@"), ARGPARSE_s_s (oSigNotation, "sig-notation", "@"), ARGPARSE_s_s (oCertNotation, "cert-notation", "@"), ARGPARSE_s_s (oSetPolicyURL, "set-policy-url", "@"), ARGPARSE_s_s (oSigPolicyURL, "sig-policy-url", "@"), ARGPARSE_s_s (oCertPolicyURL, "cert-policy-url", "@"), ARGPARSE_s_s (oSigKeyserverURL, "sig-keyserver-url", "@"), ARGPARSE_header ("Output", N_("Options controlling the output")), ARGPARSE_s_n (oArmor, "armor", N_("create ascii armored output")), ARGPARSE_s_n (oArmor, "armour", "@"), ARGPARSE_s_n (oNoArmor, "no-armor", "@"), ARGPARSE_s_n (oNoArmor, "no-armour", "@"), ARGPARSE_s_s (oOutput, "output", N_("|FILE|write output to FILE")), ARGPARSE_p_u (oMaxOutput, "max-output", "@"), ARGPARSE_s_s (oComment, "comment", "@"), ARGPARSE_s_n (oDefaultComment, "default-comment", "@"), ARGPARSE_s_n (oNoComments, "no-comments", "@"), ARGPARSE_s_n (oEmitVersion, "emit-version", "@"), ARGPARSE_s_n (oNoEmitVersion, "no-emit-version", "@"), ARGPARSE_s_n (oNoEmitVersion, "no-version", "@"), /* alias */ ARGPARSE_s_n (oNotDashEscaped, "not-dash-escaped", "@"), ARGPARSE_s_n (oEscapeFrom, "escape-from-lines", "@"), ARGPARSE_s_n (oNoEscapeFrom, "no-escape-from-lines", "@"), ARGPARSE_s_n (oMimemode, "mimemode", "@"), ARGPARSE_s_n (oTextmodeShort, NULL, "@"), ARGPARSE_s_n (oTextmode, "textmode", N_("use canonical text mode")), ARGPARSE_s_n (oNoTextmode, "no-textmode", "@"), ARGPARSE_s_s (oSetFilename, "set-filename", "@"), ARGPARSE_s_n (oForYourEyesOnly, "for-your-eyes-only", "@"), ARGPARSE_s_n (oNoForYourEyesOnly, "no-for-your-eyes-only", "@"), ARGPARSE_s_n (oShowNotation, "show-notation", "@"), ARGPARSE_s_n (oNoShowNotation, "no-show-notation", "@"), ARGPARSE_s_n (oShowSessionKey, "show-session-key", "@"), ARGPARSE_s_n (oUseEmbeddedFilename, "use-embedded-filename", "@"), ARGPARSE_s_n (oNoUseEmbeddedFilename, "no-use-embedded-filename", "@"), ARGPARSE_s_n (oUnwrap, "unwrap", "@"), ARGPARSE_s_n (oMangleDosFilenames, "mangle-dos-filenames", "@"), ARGPARSE_s_n (oNoMangleDosFilenames, "no-mangle-dos-filenames", "@"), ARGPARSE_s_i (oChunkSize, "chunk-size", "@"), ARGPARSE_s_n (oNoSymkeyCache, "no-symkey-cache", "@"), ARGPARSE_s_n (oSkipVerify, "skip-verify", "@"), ARGPARSE_s_n (oListOnly, "list-only", "@"), ARGPARSE_s_i (oCompress, NULL, N_("|N|set compress level to N (0 disables)")), ARGPARSE_s_i (oCompressLevel, "compress-level", "@"), ARGPARSE_s_i (oBZ2CompressLevel, "bzip2-compress-level", "@"), ARGPARSE_s_n (oDisableSignerUID, "disable-signer-uid", "@"), ARGPARSE_header ("ImportExport", N_("Options controlling key import and export")), ARGPARSE_s_s (oAutoKeyLocate, "auto-key-locate", N_("|MECHANISMS|use MECHANISMS to locate keys by mail address")), ARGPARSE_s_n (oNoAutoKeyLocate, "no-auto-key-locate", "@"), ARGPARSE_s_n (oAutoKeyImport, "auto-key-import", N_("import missing key from a signature")), ARGPARSE_s_n (oNoAutoKeyImport, "no-auto-key-import", "@"), ARGPARSE_s_n (oAutoKeyRetrieve, "auto-key-retrieve", "@"), ARGPARSE_s_n (oNoAutoKeyRetrieve, "no-auto-key-retrieve", "@"), ARGPARSE_s_n (oIncludeKeyBlock, "include-key-block", N_("include the public key in signatures")), ARGPARSE_s_n (oNoIncludeKeyBlock, "no-include-key-block", "@"), ARGPARSE_s_n (oDisableDirmngr, "disable-dirmngr", N_("disable all access to the dirmngr")), ARGPARSE_s_s (oKeyServer, "keyserver", "@"), /* Deprecated. */ ARGPARSE_s_s (oKeyServerOptions, "keyserver-options", "@"), ARGPARSE_s_s (oKeyOrigin, "key-origin", "@"), ARGPARSE_s_s (oImportOptions, "import-options", "@"), ARGPARSE_s_s (oImportFilter, "import-filter", "@"), ARGPARSE_s_s (oExportOptions, "export-options", "@"), ARGPARSE_s_s (oExportFilter, "export-filter", "@"), ARGPARSE_s_n (oMergeOnly, "merge-only", "@" ), ARGPARSE_s_n (oAllowSecretKeyImport, "allow-secret-key-import", "@"), ARGPARSE_header ("Keylist", N_("Options controlling key listings")), ARGPARSE_s_s (oListOptions, "list-options", "@"), ARGPARSE_s_n (oFullTimestrings, "full-timestrings", "@"), ARGPARSE_s_n (oShowPhotos, "show-photos", "@"), ARGPARSE_s_n (oNoShowPhotos, "no-show-photos", "@"), ARGPARSE_s_n (oShowPolicyURL, "show-policy-url", "@"), ARGPARSE_s_n (oNoShowPolicyURL, "no-show-policy-url", "@"), ARGPARSE_s_n (oWithColons, "with-colons", "@"), ARGPARSE_s_n (oWithTofuInfo,"with-tofu-info", "@"), ARGPARSE_s_n (oWithKeyData,"with-key-data", "@"), ARGPARSE_s_n (oWithSigList,"with-sig-list", "@"), ARGPARSE_s_n (oWithSigCheck,"with-sig-check", "@"), ARGPARSE_s_n (oWithFingerprint, "with-fingerprint", "@"), ARGPARSE_s_n (oWithSubkeyFingerprint, "with-subkey-fingerprint", "@"), ARGPARSE_s_n (oWithSubkeyFingerprint, "with-subkey-fingerprints", "@"), ARGPARSE_s_n (oWithICAOSpelling, "with-icao-spelling", "@"), ARGPARSE_s_n (oWithKeygrip, "with-keygrip", "@"), ARGPARSE_s_n (oWithKeyScreening,"with-key-screening", "@"), ARGPARSE_s_n (oWithSecret, "with-secret", "@"), ARGPARSE_s_n (oWithWKDHash, "with-wkd-hash", "@"), ARGPARSE_s_n (oWithKeyOrigin, "with-key-origin", "@"), ARGPARSE_s_n (oFastListMode, "fast-list-mode", "@"), ARGPARSE_s_n (oFixedListMode, "fixed-list-mode", "@"), ARGPARSE_s_n (oLegacyListMode, "legacy-list-mode", "@"), ARGPARSE_s_n (oPrintPKARecords, "print-pka-records", "@"), ARGPARSE_s_n (oPrintDANERecords, "print-dane-records", "@"), ARGPARSE_s_s (oKeyidFormat, "keyid-format", "@"), ARGPARSE_s_n (oShowKeyring, "show-keyring", "@"), ARGPARSE_header (NULL, N_("Options to specify keys")), ARGPARSE_s_s (oRecipient, "recipient", N_("|USER-ID|encrypt for USER-ID")), ARGPARSE_s_s (oHiddenRecipient, "hidden-recipient", "@"), ARGPARSE_s_s (oRecipientFile, "recipient-file", "@"), ARGPARSE_s_s (oHiddenRecipientFile, "hidden-recipient-file", "@"), ARGPARSE_s_s (oRecipient, "remote-user", "@"), /* (old option name) */ ARGPARSE_s_n (oThrowKeyids, "throw-keyids", "@"), ARGPARSE_s_n (oNoThrowKeyids, "no-throw-keyids", "@"), ARGPARSE_s_s (oLocalUser, "local-user", N_("|USER-ID|use USER-ID to sign or decrypt")), ARGPARSE_s_s (oTrustedKey, "trusted-key", "@"), ARGPARSE_s_s (oSender, "sender", "@"), ARGPARSE_s_s (oTrySecretKey, "try-secret-key", "@"), ARGPARSE_s_n (oTryAllSecrets, "try-all-secrets", "@"), ARGPARSE_s_n (oNoDefKeyring, "no-default-keyring", "@"), ARGPARSE_s_n (oNoKeyring, "no-keyring", "@"), ARGPARSE_s_s (oKeyring, "keyring", "@"), ARGPARSE_s_s (oPrimaryKeyring, "primary-keyring", "@"), ARGPARSE_s_s (oSecretKeyring, "secret-keyring", "@"), ARGPARSE_s_n (oSkipHiddenRecipients, "skip-hidden-recipients", "@"), ARGPARSE_s_n (oNoSkipHiddenRecipients, "no-skip-hidden-recipients", "@"), ARGPARSE_s_s (oOverrideSessionKey, "override-session-key", "@"), ARGPARSE_s_i (oOverrideSessionKeyFD, "override-session-key-fd", "@"), ARGPARSE_header ("Security", N_("Options controlling the security")), ARGPARSE_s_i (oS2KMode, "s2k-mode", "@"), ARGPARSE_s_s (oS2KDigest, "s2k-digest-algo", "@"), ARGPARSE_s_s (oS2KCipher, "s2k-cipher-algo", "@"), ARGPARSE_s_i (oS2KCount, "s2k-count", "@"), ARGPARSE_s_n (oForceAEAD, "force-aead", "@"), ARGPARSE_s_n (oRequireCrossCert, "require-backsigs", "@"), ARGPARSE_s_n (oRequireCrossCert, "require-cross-certification", "@"), ARGPARSE_s_n (oNoRequireCrossCert, "no-require-backsigs", "@"), ARGPARSE_s_n (oNoRequireCrossCert, "no-require-cross-certification", "@"), /* Options to override new security defaults. */ ARGPARSE_s_n (oAllowWeakKeySignatures, "allow-weak-key-signatures", "@"), ARGPARSE_s_n (oAllowWeakDigestAlgos, "allow-weak-digest-algos", "@"), ARGPARSE_s_s (oWeakDigest, "weak-digest","@"), ARGPARSE_s_s (oVerifyOptions, "verify-options", "@"), ARGPARSE_s_n (oEnableSpecialFilenames, "enable-special-filenames", "@"), ARGPARSE_s_n (oNoRandomSeedFile, "no-random-seed-file", "@"), ARGPARSE_s_n (oNoSigCache, "no-sig-cache", "@"), ARGPARSE_s_n (oIgnoreTimeConflict, "ignore-time-conflict", "@"), ARGPARSE_s_n (oIgnoreValidFrom, "ignore-valid-from", "@"), ARGPARSE_s_n (oIgnoreCrcError, "ignore-crc-error", "@"), ARGPARSE_s_n (oIgnoreMDCError, "ignore-mdc-error", "@"), ARGPARSE_s_s (oDisableCipherAlgo, "disable-cipher-algo", "@"), ARGPARSE_s_s (oDisablePubkeyAlgo, "disable-pubkey-algo", "@"), ARGPARSE_s_s (oCipherAlgo, "cipher-algo", "@"), ARGPARSE_s_s (oAEADAlgo, "aead-algo", "@"), ARGPARSE_s_s (oDigestAlgo, "digest-algo", "@"), ARGPARSE_s_s (oCertDigestAlgo, "cert-digest-algo", "@"), ARGPARSE_header (NULL, N_("Options for unattended use")), ARGPARSE_s_n (oBatch, "batch", "@"), ARGPARSE_s_n (oNoBatch, "no-batch", "@"), ARGPARSE_s_n (oAnswerYes, "yes", "@"), ARGPARSE_s_n (oAnswerNo, "no", "@"), ARGPARSE_s_i (oStatusFD, "status-fd", "@"), ARGPARSE_s_s (oStatusFile, "status-file", "@"), ARGPARSE_s_i (oAttributeFD, "attribute-fd", "@"), ARGPARSE_s_s (oAttributeFile, "attribute-file", "@"), ARGPARSE_s_i (oCommandFD, "command-fd", "@"), ARGPARSE_s_s (oCommandFile, "command-file", "@"), ARGPARSE_o_s (oPassphrase, "passphrase", "@"), ARGPARSE_s_i (oPassphraseFD, "passphrase-fd", "@"), ARGPARSE_s_s (oPassphraseFile, "passphrase-file", "@"), ARGPARSE_s_i (oPassphraseRepeat,"passphrase-repeat", "@"), ARGPARSE_s_s (oPinentryMode, "pinentry-mode", "@"), ARGPARSE_header (NULL, N_("Other options")), ARGPARSE_s_s (oRequestOrigin, "request-origin", "@"), ARGPARSE_s_s (oDisplay, "display", "@"), ARGPARSE_s_s (oTTYname, "ttyname", "@"), ARGPARSE_s_s (oTTYtype, "ttytype", "@"), ARGPARSE_s_s (oLCctype, "lc-ctype", "@"), ARGPARSE_s_s (oLCmessages, "lc-messages","@"), ARGPARSE_s_s (oXauthority, "xauthority", "@"), ARGPARSE_s_s (oChUid, "chuid", "@"), ARGPARSE_s_n (oNoAutostart, "no-autostart", "@"), ARGPARSE_s_n (oUseKeyboxd, "use-keyboxd", "@"), /* Options which can be used in special circumstances. They are not * published and we hope they are never required. */ ARGPARSE_s_n (oUseOnlyOpenPGPCard, "use-only-openpgp-card", "@"), /* Esoteric compatibility options. */ ARGPARSE_s_n (oRFC2440Text, "rfc2440-text", "@"), ARGPARSE_s_n (oNoRFC2440Text, "no-rfc2440-text", "@"), ARGPARSE_header (NULL, ""), /* Stop the header group. */ /* Aliases. I constantly mistype these, and assume other people do as well. */ ARGPARSE_s_s (oPersonalCipherPreferences, "personal-cipher-prefs", "@"), ARGPARSE_s_s (oPersonalAEADPreferences, "personal-aead-prefs", "@"), ARGPARSE_s_s (oPersonalDigestPreferences, "personal-digest-prefs", "@"), ARGPARSE_s_s (oPersonalCompressPreferences, "personal-compress-prefs", "@"), /* These two are aliases to help users of the PGP command line product use gpg with minimal pain. Many commands are common already as they seem to have borrowed commands from us. Now I'm returning the favor. */ ARGPARSE_s_s (oLocalUser, "sign-with", "@"), ARGPARSE_s_s (oRecipient, "user", "@"), /* Dummy options with warnings. */ ARGPARSE_s_n (oUseAgent, "use-agent", "@"), ARGPARSE_s_n (oNoUseAgent, "no-use-agent", "@"), ARGPARSE_s_s (oGpgAgentInfo, "gpg-agent-info", "@"), ARGPARSE_s_s (oReaderPort, "reader-port", "@"), ARGPARSE_s_s (octapiDriver, "ctapi-driver", "@"), ARGPARSE_s_s (opcscDriver, "pcsc-driver", "@"), ARGPARSE_s_n (oDisableCCID, "disable-ccid", "@"), ARGPARSE_s_n (oHonorHttpProxy, "honor-http-proxy", "@"), ARGPARSE_s_s (oTOFUDBFormat, "tofu-db-format", "@"), /* Dummy options. */ ARGPARSE_ignore (oStrict, "strict"), ARGPARSE_ignore (oNoStrict, "no-strict"), ARGPARSE_ignore (oLoadExtension, "load-extension"), /* from 1.4. */ ARGPARSE_s_n (oNoop, "sk-comments", "@"), ARGPARSE_s_n (oNoop, "no-sk-comments", "@"), ARGPARSE_s_n (oNoop, "compress-keys", "@"), ARGPARSE_s_n (oNoop, "compress-sigs", "@"), ARGPARSE_s_n (oNoop, "force-v3-sigs", "@"), ARGPARSE_s_n (oNoop, "no-force-v3-sigs", "@"), ARGPARSE_s_n (oNoop, "force-v4-certs", "@"), ARGPARSE_s_n (oNoop, "no-force-v4-certs", "@"), ARGPARSE_s_n (oNoop, "no-mdc-warning", "@"), ARGPARSE_s_n (oNoop, "force-mdc", "@"), ARGPARSE_s_n (oNoop, "no-force-mdc", "@"), ARGPARSE_s_n (oNoop, "disable-mdc", "@"), ARGPARSE_s_n (oNoop, "no-disable-mdc", "@"), ARGPARSE_s_n (oNoop, "allow-multisig-verification", "@"), ARGPARSE_s_n (oNoop, "allow-multiple-messages", "@"), ARGPARSE_s_n (oNoop, "no-allow-multiple-messages", "@"), ARGPARSE_group (302, N_( "@\n(See the man page for a complete listing of all commands and options)\n" )), ARGPARSE_group (303, N_("@\nExamples:\n\n" " -se -r Bob [file] sign and encrypt for user Bob\n" " --clear-sign [file] make a clear text signature\n" " --detach-sign [file] make a detached signature\n" " --list-keys [names] show keys\n" " --fingerprint [names] show fingerprints\n")), ARGPARSE_end () }; /* The list of supported debug flags. */ static struct debug_flags_s debug_flags [] = { { DBG_PACKET_VALUE , "packet" }, { DBG_MPI_VALUE , "mpi" }, { DBG_CRYPTO_VALUE , "crypto" }, { DBG_FILTER_VALUE , "filter" }, { DBG_IOBUF_VALUE , "iobuf" }, { DBG_MEMORY_VALUE , "memory" }, { DBG_CACHE_VALUE , "cache" }, { DBG_MEMSTAT_VALUE, "memstat" }, { DBG_TRUST_VALUE , "trust" }, { DBG_HASHING_VALUE, "hashing" }, { DBG_IPC_VALUE , "ipc" }, { DBG_CLOCK_VALUE , "clock" }, { DBG_LOOKUP_VALUE , "lookup" }, { DBG_EXTPROG_VALUE, "extprog" }, { 0, NULL } }; #ifdef ENABLE_SELINUX_HACKS #define ALWAYS_ADD_KEYRINGS 1 #else #define ALWAYS_ADD_KEYRINGS 0 #endif /* The list of the default AKL methods. */ #define DEFAULT_AKL_LIST "local,wkd" int g10_errors_seen = 0; static int utf8_strings = 0; static int maybe_setuid = 1; static unsigned int opt_set_iobuf_size; static unsigned int opt_set_iobuf_size_used; static char *build_list( const char *text, char letter, const char *(*mapf)(int), int (*chkf)(int) ); static void set_cmd( enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd ); static void print_mds( const char *fname, int algo ); static void add_notation_data( const char *string, int which ); static void add_policy_url( const char *string, int which ); static void add_keyserver_url( const char *string, int which ); static void emergency_cleanup (void); static void read_sessionkey_from_fd (int fd); /* NPth wrapper function definitions. */ ASSUAN_SYSTEM_NPTH_IMPL; static char * make_libversion (const char *libname, const char *(*getfnc)(const char*)) { const char *s; char *result; if (maybe_setuid) { gcry_control (GCRYCTL_INIT_SECMEM, 0, 0); /* Drop setuid. */ maybe_setuid = 0; } s = getfnc (NULL); result = xmalloc (strlen (libname) + 1 + strlen (s) + 1); strcpy (stpcpy (stpcpy (result, libname), " "), s); return result; } static int build_list_pk_test_algo (int algo) { /* Show only one "RSA" string. If RSA_E or RSA_S is available RSA is also available. */ if (algo == PUBKEY_ALGO_RSA_E || algo == PUBKEY_ALGO_RSA_S) return GPG_ERR_DIGEST_ALGO; return openpgp_pk_test_algo (algo); } static const char * build_list_pk_algo_name (int algo) { return openpgp_pk_algo_name (algo); } static int build_list_cipher_test_algo (int algo) { return openpgp_cipher_test_algo (algo); } static const char * build_list_cipher_algo_name (int algo) { return openpgp_cipher_algo_name (algo); } static int build_list_aead_test_algo (int algo) { return openpgp_aead_test_algo (algo); } static const char * build_list_aead_algo_name (int algo) { return openpgp_aead_algo_name (algo); } static int build_list_md_test_algo (int algo) { /* By default we do not accept MD5 based signatures. To avoid confusion we do not announce support for it either. */ if (algo == DIGEST_ALGO_MD5) return GPG_ERR_DIGEST_ALGO; return openpgp_md_test_algo (algo); } static const char * build_list_md_algo_name (int algo) { return openpgp_md_algo_name (algo); } static const char * my_strusage( int level ) { static char *digests, *pubkeys, *ciphers, *zips, *aeads, *ver_gcry; const char *p; switch( level ) { case 9: p = "GPL-3.0-or-later"; break; case 11: p = "@GPG@ (@GNUPG@)"; break; case 13: p = VERSION; break; case 14: p = GNUPG_DEF_COPYRIGHT_LINE; break; case 17: p = PRINTABLE_OS_NAME; break; case 19: p = _("Please report bugs to <@EMAIL@>.\n"); break; case 20: if (!ver_gcry) ver_gcry = make_libversion ("libgcrypt", gcry_check_version); p = ver_gcry; break; #ifdef IS_DEVELOPMENT_VERSION case 25: p="NOTE: THIS IS A DEVELOPMENT VERSION!"; break; case 26: p="It is only intended for test purposes and should NOT be"; break; case 27: p="used in a production environment or with production keys!"; break; #endif case 1: case 40: p = _("Usage: @GPG@ [options] [files] (-h for help)"); break; case 41: p = _("Syntax: @GPG@ [options] [files]\n" "Sign, check, encrypt or decrypt\n" "Default operation depends on the input data\n"); break; case 31: p = "\nHome: "; break; #ifndef __riscos__ case 32: p = gnupg_homedir (); break; #else /* __riscos__ */ case 32: p = make_filename(gnupg_homedir (), NULL); break; #endif /* __riscos__ */ case 33: p = _("\nSupported algorithms:\n"); break; case 34: if (!pubkeys) pubkeys = build_list (_("Pubkey: "), 1, build_list_pk_algo_name, build_list_pk_test_algo ); p = pubkeys; break; case 35: if( !ciphers ) ciphers = build_list(_("Cipher: "), 'S', build_list_cipher_algo_name, build_list_cipher_test_algo ); p = ciphers; break; case 36: if (!aeads) aeads = build_list ("AEAD: ", 'A', build_list_aead_algo_name, build_list_aead_test_algo); p = aeads; break; case 37: if( !digests ) digests = build_list(_("Hash: "), 'H', build_list_md_algo_name, build_list_md_test_algo ); p = digests; break; case 38: if( !zips ) zips = build_list(_("Compression: "),'Z', compress_algo_to_string, check_compress_algo); p = zips; break; default: p = NULL; } return p; } static char * build_list (const char *text, char letter, const char * (*mapf)(int), int (*chkf)(int)) { membuf_t mb; int indent; int i, j, len; int limit; const char *s; char *string; if (maybe_setuid) gcry_control (GCRYCTL_INIT_SECMEM, 0, 0); /* Drop setuid. */ indent = utf8_charcount (text, -1); len = 0; init_membuf (&mb, 512); limit = (letter == 'A')? 4 : 110; for (i=0; i <= limit; i++ ) { if (!chkf (i) && (s = mapf (i))) { if (mb.len - len > 60) { put_membuf_str (&mb, ",\n"); len = mb.len; for (j=0; j < indent; j++) put_membuf_str (&mb, " "); } else if (mb.len) put_membuf_str (&mb, ", "); else put_membuf_str (&mb, text); put_membuf_str (&mb, s); if (opt.verbose && letter) { char num[20]; if (letter == 1) snprintf (num, sizeof num, " (%d)", i); else snprintf (num, sizeof num, " (%c%d)", letter, i); put_membuf_str (&mb, num); } } } if (mb.len) put_membuf_str (&mb, "\n"); put_membuf (&mb, "", 1); string = get_membuf (&mb, NULL); return xrealloc (string, strlen (string)+1); } static void wrong_args( const char *text) { es_fprintf (es_stderr, _("usage: %s [options] %s\n"), GPG_NAME, text); log_inc_errorcount (); g10_exit(2); } static char * make_username( const char *string ) { char *p; if( utf8_strings ) p = xstrdup(string); else p = native_to_utf8( string ); return p; } static void set_opt_session_env (const char *name, const char *value) { gpg_error_t err; err = session_env_setenv (opt.session_env, name, value); if (err) log_fatal ("error setting session environment: %s\n", gpg_strerror (err)); } /* Setup the debugging. With a LEVEL of NULL only the active debug flags are propagated to the subsystems. With LEVEL set, a specific set of debug flags is set; thus overriding all flags already set. */ static void set_debug (const char *level) { int numok = (level && digitp (level)); int numlvl = numok? atoi (level) : 0; if (!level) ; else if (!strcmp (level, "none") || (numok && numlvl < 1)) opt.debug = 0; else if (!strcmp (level, "basic") || (numok && numlvl <= 2)) opt.debug = DBG_MEMSTAT_VALUE; else if (!strcmp (level, "advanced") || (numok && numlvl <= 5)) opt.debug = DBG_MEMSTAT_VALUE|DBG_TRUST_VALUE|DBG_EXTPROG_VALUE; else if (!strcmp (level, "expert") || (numok && numlvl <= 8)) opt.debug = (DBG_MEMSTAT_VALUE|DBG_TRUST_VALUE|DBG_EXTPROG_VALUE |DBG_CACHE_VALUE|DBG_LOOKUP|DBG_FILTER_VALUE|DBG_PACKET_VALUE); else if (!strcmp (level, "guru") || numok) { opt.debug = ~0; /* Unless the "guru" string has been used we don't want to allow hashing debugging. The rationale is that people tend to select the highest debug value and would then clutter their disk with debug files which may reveal confidential data. */ if (numok) opt.debug &= ~(DBG_HASHING_VALUE); } else { log_error (_("invalid debug-level '%s' given\n"), level); g10_exit (2); } if ((opt.debug & DBG_MEMORY_VALUE)) memory_debug_mode = 1; if ((opt.debug & DBG_MEMSTAT_VALUE)) memory_stat_debug_mode = 1; if (DBG_MPI) gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 2); if (DBG_CRYPTO) gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 1); if ((opt.debug & DBG_IOBUF_VALUE)) iobuf_debug_mode = 1; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); if (opt.debug) parse_debug_flag (NULL, &opt.debug, debug_flags); if (opt_set_iobuf_size || opt_set_iobuf_size_used) log_debug ("iobuf buffer size is %uk\n", iobuf_set_buffer_size (opt_set_iobuf_size)); } /* We set the screen dimensions for UI purposes. Do not allow screens smaller than 80x24 for the sake of simplicity. */ static void set_screen_dimensions(void) { #ifndef HAVE_W32_SYSTEM char *str; str=getenv("COLUMNS"); if(str) opt.screen_columns=atoi(str); str=getenv("LINES"); if(str) opt.screen_lines=atoi(str); #endif if(opt.screen_columns<80 || opt.screen_columns>255) opt.screen_columns=80; if(opt.screen_lines<24 || opt.screen_lines>255) opt.screen_lines=24; } /* Helper to open a file FNAME either for reading or writing to be used with --status-file etc functions. Not generally useful but it avoids the riscos specific functions and well some Windows people might like it too. Prints an error message and returns -1 on error. On success the file descriptor is returned. */ static int open_info_file (const char *fname, int for_write, int binary) { #ifdef __riscos__ return riscos_fdopenfile (fname, for_write); #elif defined (ENABLE_SELINUX_HACKS) /* We can't allow these even when testing for a secured filename because files to be secured might not yet been secured. This is similar to the option file but in that case it is unlikely that sensitive information may be retrieved by means of error messages. */ (void)fname; (void)for_write; (void)binary; return -1; #else int fd; if (binary) binary = MY_O_BINARY; /* if (is_secured_filename (fname)) */ /* { */ /* fd = -1; */ /* gpg_err_set_errno (EPERM); */ /* } */ /* else */ /* { */ do { if (for_write) - fd = open (fname, O_CREAT | O_TRUNC | O_WRONLY | binary, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); + fd = gnupg_open (fname, O_CREAT | O_TRUNC | O_WRONLY | binary, + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP); else - fd = open (fname, O_RDONLY | binary); + fd = gnupg_open (fname, O_RDONLY | binary, 0); } while (fd == -1 && errno == EINTR); /* } */ if ( fd == -1) log_error ( for_write? _("can't create '%s': %s\n") : _("can't open '%s': %s\n"), fname, strerror(errno)); return fd; #endif } static void set_cmd( enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd ) { enum cmd_and_opt_values cmd = *ret_cmd; if( !cmd || cmd == new_cmd ) cmd = new_cmd; else if( cmd == aSign && new_cmd == aEncr ) cmd = aSignEncr; else if( cmd == aEncr && new_cmd == aSign ) cmd = aSignEncr; else if( cmd == aSign && new_cmd == aSym ) cmd = aSignSym; else if( cmd == aSym && new_cmd == aSign ) cmd = aSignSym; else if( cmd == aSym && new_cmd == aEncr ) cmd = aEncrSym; else if( cmd == aEncr && new_cmd == aSym ) cmd = aEncrSym; else if (cmd == aSignEncr && new_cmd == aSym) cmd = aSignEncrSym; else if (cmd == aSignSym && new_cmd == aEncr) cmd = aSignEncrSym; else if (cmd == aEncrSym && new_cmd == aSign) cmd = aSignEncrSym; else if( ( cmd == aSign && new_cmd == aClearsign ) || ( cmd == aClearsign && new_cmd == aSign ) ) cmd = aClearsign; else { log_error(_("conflicting commands\n")); g10_exit(2); } *ret_cmd = cmd; } static void add_group(char *string) { char *name,*value; struct groupitem *item; /* Break off the group name */ name=strsep(&string,"="); if(string==NULL) { log_error(_("no = sign found in group definition '%s'\n"),name); return; } trim_trailing_ws(name,strlen(name)); /* Does this group already exist? */ for(item=opt.grouplist;item;item=item->next) if(strcasecmp(item->name,name)==0) break; if(!item) { item=xmalloc(sizeof(struct groupitem)); item->name=name; item->next=opt.grouplist; item->values=NULL; opt.grouplist=item; } /* Break apart the values */ while ((value= strsep(&string," \t"))) { if (*value) add_to_strlist2(&item->values,value,utf8_strings); } } static void rm_group(char *name) { struct groupitem *item,*last=NULL; trim_trailing_ws(name,strlen(name)); for(item=opt.grouplist;item;last=item,item=item->next) { if(strcasecmp(item->name,name)==0) { if(last) last->next=item->next; else opt.grouplist=item->next; free_strlist(item->values); xfree(item); break; } } } /* We need to check three things. 0) The homedir. It must be x00, a directory, and owned by the user. 1) The options/gpg.conf file. Okay unless it or its containing directory is group or other writable or not owned by us. Disable exec in this case. 2) Extensions. Same as #1. Returns true if the item is unsafe. */ static int check_permissions (const char *path, int item) { #if defined(HAVE_STAT) && !defined(HAVE_DOSISH_SYSTEM) static int homedir_cache=-1; char *tmppath,*dir; struct stat statbuf,dirbuf; int homedir=0,ret=0,checkonly=0; int perm=0,own=0,enc_dir_perm=0,enc_dir_own=0; if(opt.no_perm_warn) return 0; log_assert(item==0 || item==1 || item==2); /* extensions may attach a path */ if(item==2 && path[0]!=DIRSEP_C) { if(strchr(path,DIRSEP_C)) tmppath=make_filename(path,NULL); else tmppath=make_filename(gnupg_libdir (),path,NULL); } else tmppath=xstrdup(path); /* If the item is located in the homedir, but isn't the homedir, don't continue if we already checked the homedir itself. This is to avoid user confusion with an extra options file warning which could be rectified if the homedir itself had proper permissions. */ if(item!=0 && homedir_cache>-1 && !ascii_strncasecmp (gnupg_homedir (), tmppath, strlen (gnupg_homedir ()))) { ret=homedir_cache; goto end; } /* It's okay if the file or directory doesn't exist */ if(stat(tmppath,&statbuf)!=0) { ret=0; goto end; } /* Now check the enclosing directory. Theoretically, we could walk this test up to the root directory /, but for the sake of sanity, I'm stopping at one level down. */ dir=make_dirname(tmppath); if(stat(dir,&dirbuf)!=0 || !S_ISDIR(dirbuf.st_mode)) { /* Weird error */ ret=1; goto end; } xfree(dir); /* Assume failure */ ret=1; if(item==0) { /* The homedir must be x00, a directory, and owned by the user. */ if(S_ISDIR(statbuf.st_mode)) { if(statbuf.st_uid==getuid()) { if((statbuf.st_mode & (S_IRWXG|S_IRWXO))==0) ret=0; else perm=1; } else own=1; homedir_cache=ret; } } else if(item==1 || item==2) { /* The options or extension file. Okay unless it or its containing directory is group or other writable or not owned by us or root. */ if(S_ISREG(statbuf.st_mode)) { if(statbuf.st_uid==getuid() || statbuf.st_uid==0) { if((statbuf.st_mode & (S_IWGRP|S_IWOTH))==0) { /* it's not writable, so make sure the enclosing directory is also not writable */ if(dirbuf.st_uid==getuid() || dirbuf.st_uid==0) { if((dirbuf.st_mode & (S_IWGRP|S_IWOTH))==0) ret=0; else enc_dir_perm=1; } else enc_dir_own=1; } else { /* it's writable, so the enclosing directory had better not let people get to it. */ if(dirbuf.st_uid==getuid() || dirbuf.st_uid==0) { if((dirbuf.st_mode & (S_IRWXG|S_IRWXO))==0) ret=0; else perm=enc_dir_perm=1; /* unclear which one to fix! */ } else enc_dir_own=1; } } else own=1; } } else BUG(); if(!checkonly) { if(own) { if(item==0) log_info(_("WARNING: unsafe ownership on" " homedir '%s'\n"),tmppath); else if(item==1) log_info(_("WARNING: unsafe ownership on" " configuration file '%s'\n"),tmppath); else log_info(_("WARNING: unsafe ownership on" " extension '%s'\n"),tmppath); } if(perm) { if(item==0) log_info(_("WARNING: unsafe permissions on" " homedir '%s'\n"),tmppath); else if(item==1) log_info(_("WARNING: unsafe permissions on" " configuration file '%s'\n"),tmppath); else log_info(_("WARNING: unsafe permissions on" " extension '%s'\n"),tmppath); } if(enc_dir_own) { if(item==0) log_info(_("WARNING: unsafe enclosing directory ownership on" " homedir '%s'\n"),tmppath); else if(item==1) log_info(_("WARNING: unsafe enclosing directory ownership on" " configuration file '%s'\n"),tmppath); else log_info(_("WARNING: unsafe enclosing directory ownership on" " extension '%s'\n"),tmppath); } if(enc_dir_perm) { if(item==0) log_info(_("WARNING: unsafe enclosing directory permissions on" " homedir '%s'\n"),tmppath); else if(item==1) log_info(_("WARNING: unsafe enclosing directory permissions on" " configuration file '%s'\n"),tmppath); else log_info(_("WARNING: unsafe enclosing directory permissions on" " extension '%s'\n"),tmppath); } } end: xfree(tmppath); if(homedir) homedir_cache=ret; return ret; #else /*!(HAVE_STAT && !HAVE_DOSISH_SYSTEM)*/ (void)path; (void)item; return 0; #endif /*!(HAVE_STAT && !HAVE_DOSISH_SYSTEM)*/ } /* Print the OpenPGP defined algo numbers. */ static void print_algo_numbers(int (*checker)(int)) { int i,first=1; for(i=0;i<=110;i++) { if(!checker(i)) { if(first) first=0; else es_printf (";"); es_printf ("%d",i); } } } static void print_algo_names(int (*checker)(int),const char *(*mapper)(int)) { int i,first=1; for(i=0;i<=110;i++) { if(!checker(i)) { if(first) first=0; else es_printf (";"); es_printf ("%s",mapper(i)); } } } /* In the future, we can do all sorts of interesting configuration output here. For now, just give "group" as the Enigmail folks need it, and pubkey, cipher, hash, and compress as they may be useful for frontends. */ static void list_config(char *items) { int show_all = !items; char *name = NULL; const char *s; struct groupitem *giter; int first, iter; if(!opt.with_colons) return; while(show_all || (name=strsep(&items," "))) { int any=0; if(show_all || ascii_strcasecmp(name,"group")==0) { for (giter = opt.grouplist; giter; giter = giter->next) { strlist_t sl; es_fprintf (es_stdout, "cfg:group:"); es_write_sanitized (es_stdout, giter->name, strlen(giter->name), ":", NULL); es_putc (':', es_stdout); for(sl=giter->values; sl; sl=sl->next) { es_write_sanitized (es_stdout, sl->d, strlen (sl->d), ":;", NULL); if(sl->next) es_printf(";"); } es_printf("\n"); } any=1; } if(show_all || ascii_strcasecmp(name,"version")==0) { es_printf("cfg:version:"); es_write_sanitized (es_stdout, VERSION, strlen(VERSION), ":", NULL); es_printf ("\n"); any=1; } if(show_all || ascii_strcasecmp(name,"pubkey")==0) { es_printf ("cfg:pubkey:"); print_algo_numbers (build_list_pk_test_algo); es_printf ("\n"); any=1; } if(show_all || ascii_strcasecmp(name,"pubkeyname")==0) { es_printf ("cfg:pubkeyname:"); print_algo_names (build_list_pk_test_algo, build_list_pk_algo_name); es_printf ("\n"); any=1; } if(show_all || ascii_strcasecmp(name,"cipher")==0) { es_printf ("cfg:cipher:"); print_algo_numbers (build_list_cipher_test_algo); es_printf ("\n"); any=1; } if (show_all || !ascii_strcasecmp (name,"ciphername")) { es_printf ("cfg:ciphername:"); print_algo_names (build_list_cipher_test_algo, build_list_cipher_algo_name); es_printf ("\n"); any = 1; } if(show_all || ascii_strcasecmp(name,"digest")==0 || ascii_strcasecmp(name,"hash")==0) { es_printf ("cfg:digest:"); print_algo_numbers (build_list_md_test_algo); es_printf ("\n"); any=1; } if (show_all || !ascii_strcasecmp(name,"digestname") || !ascii_strcasecmp(name,"hashname")) { es_printf ("cfg:digestname:"); print_algo_names (build_list_md_test_algo, build_list_md_algo_name); es_printf ("\n"); any=1; } if(show_all || ascii_strcasecmp(name,"compress")==0) { es_printf ("cfg:compress:"); print_algo_numbers(check_compress_algo); es_printf ("\n"); any=1; } if(show_all || ascii_strcasecmp (name, "compressname") == 0) { es_printf ("cfg:compressname:"); print_algo_names (check_compress_algo, compress_algo_to_string); es_printf ("\n"); any=1; } if (show_all || !ascii_strcasecmp(name,"ccid-reader-id")) { /* We ignore this for GnuPG 1.4 backward compatibility. */ any=1; } if (show_all || !ascii_strcasecmp (name,"curve")) { es_printf ("cfg:curve:"); for (iter=0, first=1; (s = openpgp_enum_curves (&iter)); first=0) es_printf ("%s%s", first?"":";", s); es_printf ("\n"); any=1; } /* Curve OIDs are rarely useful and thus only printed if requested. */ if (name && !ascii_strcasecmp (name,"curveoid")) { es_printf ("cfg:curveoid:"); for (iter=0, first=1; (s = openpgp_enum_curves (&iter)); first = 0) { s = openpgp_curve_to_oid (s, NULL, NULL); es_printf ("%s%s", first?"":";", s? s:"[?]"); } es_printf ("\n"); any=1; } if(show_all) break; if(!any) log_error(_("unknown configuration item '%s'\n"),name); } } /* List default values for use by gpgconf. */ static void gpgconf_list (void) { es_printf ("debug-level:%lu:\"none:\n", GC_OPT_FLAG_DEFAULT); es_printf ("compliance:%lu:\"%s:\n", GC_OPT_FLAG_DEFAULT, "gnupg"); /* The next one is an info only item and should match the macros at the top of keygen.c */ es_printf ("default_pubkey_algo:%lu:\"%s:\n", GC_OPT_FLAG_DEFAULT, get_default_pubkey_algo ()); } static int parse_subpacket_list(char *list) { char *tok; byte subpackets[128],i; int count=0; if(!list) { /* No arguments means all subpackets */ memset(subpackets+1,1,sizeof(subpackets)-1); count=127; } else { memset(subpackets,0,sizeof(subpackets)); /* Merge with earlier copy */ if(opt.show_subpackets) { byte *in; for(in=opt.show_subpackets;*in;in++) { if(*in>127 || *in<1) BUG(); if(!subpackets[*in]) count++; subpackets[*in]=1; } } while((tok=strsep(&list," ,"))) { if(!*tok) continue; i=atoi(tok); if(i>127 || i<1) return 0; if(!subpackets[i]) count++; subpackets[i]=1; } } xfree(opt.show_subpackets); opt.show_subpackets=xmalloc(count+1); opt.show_subpackets[count--]=0; for(i=1;i<128 && count>=0;i++) if(subpackets[i]) opt.show_subpackets[count--]=i; return 1; } static int parse_list_options(char *str) { char *subpackets=""; /* something that isn't NULL */ struct parse_options lopts[]= { {"show-photos",LIST_SHOW_PHOTOS,NULL, N_("display photo IDs during key listings")}, {"show-usage",LIST_SHOW_USAGE,NULL, N_("show key usage information during key listings")}, {"show-policy-urls",LIST_SHOW_POLICY_URLS,NULL, N_("show policy URLs during signature listings")}, {"show-notations",LIST_SHOW_NOTATIONS,NULL, N_("show all notations during signature listings")}, {"show-std-notations",LIST_SHOW_STD_NOTATIONS,NULL, N_("show IETF standard notations during signature listings")}, {"show-standard-notations",LIST_SHOW_STD_NOTATIONS,NULL, NULL}, {"show-user-notations",LIST_SHOW_USER_NOTATIONS,NULL, N_("show user-supplied notations during signature listings")}, {"show-keyserver-urls",LIST_SHOW_KEYSERVER_URLS,NULL, N_("show preferred keyserver URLs during signature listings")}, {"show-uid-validity",LIST_SHOW_UID_VALIDITY,NULL, N_("show user ID validity during key listings")}, {"show-unusable-uids",LIST_SHOW_UNUSABLE_UIDS,NULL, N_("show revoked and expired user IDs in key listings")}, {"show-unusable-subkeys",LIST_SHOW_UNUSABLE_SUBKEYS,NULL, N_("show revoked and expired subkeys in key listings")}, {"show-keyring",LIST_SHOW_KEYRING,NULL, N_("show the keyring name in key listings")}, {"show-sig-expire",LIST_SHOW_SIG_EXPIRE,NULL, N_("show expiration dates during signature listings")}, {"show-sig-subpackets",LIST_SHOW_SIG_SUBPACKETS,NULL, NULL}, {"show-only-fpr-mbox",LIST_SHOW_ONLY_FPR_MBOX, NULL, NULL}, {NULL,0,NULL,NULL} }; /* C99 allows for non-constant initializers, but we'd like to compile everywhere, so fill in the show-sig-subpackets argument here. Note that if the parse_options array changes, we'll have to change the subscript here. */ lopts[13].value=&subpackets; if(parse_options(str,&opt.list_options,lopts,1)) { if(opt.list_options&LIST_SHOW_SIG_SUBPACKETS) { /* Unset so users can pass multiple lists in. */ opt.list_options&=~LIST_SHOW_SIG_SUBPACKETS; if(!parse_subpacket_list(subpackets)) return 0; } else if(subpackets==NULL && opt.show_subpackets) { /* User did 'no-show-subpackets' */ xfree(opt.show_subpackets); opt.show_subpackets=NULL; } return 1; } else return 0; } /* Collapses argc/argv into a single string that must be freed */ static char * collapse_args(int argc,char *argv[]) { char *str=NULL; int i,first=1,len=0; for(i=0;imagic = SERVER_CONTROL_MAGIC; } /* This function is called to deinitialize a control object. It is not deallocated. */ static void gpg_deinit_default_ctrl (ctrl_t ctrl) { #ifdef USE_TOFU tofu_closedbs (ctrl); #endif gpg_dirmngr_deinit_session_data (ctrl); keydb_release (ctrl->cached_getkey_kdb); gpg_keyboxd_deinit_session_data (ctrl); } int main (int argc, char **argv) { gpgrt_argparse_t pargs; IOBUF a; int rc=0; int orig_argc; char **orig_argv; const char *fname; char *username; int may_coredump; strlist_t sl; strlist_t remusr = NULL; strlist_t locusr = NULL; strlist_t nrings = NULL; armor_filter_context_t *afx = NULL; int detached_sig = 0; char *last_configname = NULL; const char *configname = NULL; /* NULL or points to last_configname. * NULL also indicates that we are * processing options from the cmdline. */ int debug_argparser = 0; int default_keyring = 1; int greeting = 0; int nogreeting = 0; char *logfile = NULL; int use_random_seed = 1; enum cmd_and_opt_values cmd = 0; const char *debug_level = NULL; #ifndef NO_TRUST_MODELS const char *trustdb_name = NULL; #endif /*!NO_TRUST_MODELS*/ char *def_cipher_string = NULL; char *def_aead_string = NULL; char *def_digest_string = NULL; char *compress_algo_string = NULL; char *cert_digest_string = NULL; char *s2k_cipher_string = NULL; char *s2k_digest_string = NULL; char *pers_cipher_list = NULL; char *pers_aead_list = NULL; char *pers_digest_list = NULL; char *pers_compress_list = NULL; int eyes_only=0; int multifile=0; int pwfd = -1; int ovrseskeyfd = -1; int fpr_maybe_cmd = 0; /* --fingerprint maybe a command. */ int any_explicit_recipient = 0; int default_akl = 1; int require_secmem = 0; int got_secmem = 0; struct assuan_malloc_hooks malloc_hooks; ctrl_t ctrl; static int print_dane_records; static int print_pka_records; static int allow_large_chunks; static const char *homedirvalue; static const char *changeuser; #ifdef __riscos__ opt.lock_once = 1; #endif /* __riscos__ */ /* Please note that we may running SUID(ROOT), so be very CAREFUL when adding any stuff between here and the call to secmem_init() somewhere after the option parsing. */ early_system_init (); gnupg_reopen_std (GPG_NAME); trap_unaligned (); gnupg_rl_initialize (); gpgrt_set_strusage (my_strusage); gcry_control (GCRYCTL_SUSPEND_SECMEM_WARN); log_set_prefix (GPG_NAME, GPGRT_LOG_WITH_PREFIX); /* Make sure that our subsystems are ready. */ i18n_init(); init_common_subsystems (&argc, &argv); /* Use our own logging handler for Libcgrypt. */ setup_libgcrypt_logging (); /* Put random number into secure memory */ gcry_control (GCRYCTL_USE_SECURE_RNDPOOL); may_coredump = disable_core_dumps(); gnupg_init_signals (0, emergency_cleanup); dotlock_create (NULL, 0); /* Register lock file cleanup. */ /* Tell the compliance module who we are. */ gnupg_initialize_compliance (GNUPG_MODULE_NAME_GPG); opt.autostart = 1; opt.session_env = session_env_new (); if (!opt.session_env) log_fatal ("error allocating session environment block: %s\n", strerror (errno)); opt.command_fd = -1; /* no command fd */ opt.compress_level = -1; /* defaults to standard compress level */ opt.bz2_compress_level = -1; /* defaults to standard compress level */ /* note: if you change these lines, look at oOpenPGP */ opt.def_cipher_algo = 0; opt.def_aead_algo = 0; opt.def_digest_algo = 0; opt.cert_digest_algo = 0; opt.compress_algo = -1; /* defaults to DEFAULT_COMPRESS_ALGO */ opt.s2k_mode = 3; /* iterated+salted */ opt.s2k_count = 0; /* Auto-calibrate when needed. */ opt.s2k_cipher_algo = DEFAULT_CIPHER_ALGO; opt.completes_needed = 1; opt.marginals_needed = 3; opt.max_cert_depth = 5; opt.escape_from = 1; opt.flags.require_cross_cert = 1; opt.import_options = (IMPORT_REPAIR_KEYS | IMPORT_COLLAPSE_UIDS | IMPORT_COLLAPSE_SUBKEYS); opt.export_options = EXPORT_ATTRIBUTES; opt.keyserver_options.import_options = (IMPORT_REPAIR_KEYS | IMPORT_REPAIR_PKS_SUBKEY_BUG | IMPORT_SELF_SIGS_ONLY | IMPORT_COLLAPSE_UIDS | IMPORT_COLLAPSE_SUBKEYS | IMPORT_CLEAN); opt.keyserver_options.export_options = EXPORT_ATTRIBUTES; opt.keyserver_options.options = KEYSERVER_HONOR_PKA_RECORD; opt.verify_options = (LIST_SHOW_UID_VALIDITY | VERIFY_SHOW_POLICY_URLS | VERIFY_SHOW_STD_NOTATIONS | VERIFY_SHOW_KEYSERVER_URLS); opt.list_options = (LIST_SHOW_UID_VALIDITY | LIST_SHOW_USAGE); #ifdef NO_TRUST_MODELS opt.trust_model = TM_ALWAYS; #else opt.trust_model = TM_AUTO; #endif opt.tofu_default_policy = TOFU_POLICY_AUTO; opt.mangle_dos_filenames = 0; opt.min_cert_level = 2; set_screen_dimensions (); opt.keyid_format = KF_NONE; opt.def_sig_expire = "0"; opt.def_cert_expire = "0"; opt.passphrase_repeat = 1; opt.emit_version = 0; opt.weak_digests = NULL; opt.compliance = CO_GNUPG; opt.flags.rfc4880bis = 1; /* Check special options given on the command line. */ orig_argc = argc; orig_argv = argv; pargs.argc = &argc; pargs.argv = &argv; pargs.flags= (ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_NOVERSION); while (gpgrt_argparse (NULL, &pargs, opts)) { switch (pargs.r_opt) { case oDebug: case oDebugAll: debug_argparser++; break; case oDebugIOLBF: es_setvbuf (es_stdout, NULL, _IOLBF, 0); break; case oNoOptions: /* Set here here because the homedir would otherwise be * created before main option parsing starts. */ opt.no_homedir_creation = 1; break; case oHomedir: homedirvalue = pargs.r.ret_str; break; case oChUid: changeuser = pargs.r.ret_str; break; case oNoPermissionWarn: opt.no_perm_warn = 1; break; } } /* Reset the flags. */ pargs.flags &= ~(ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_NOVERSION); #ifdef HAVE_DOSISH_SYSTEM /* FIXME: Do we still need this? No: gnupg_homedir calls * make_filename which changes the slashed anyway. IsDBCSLeadByte still * needed? See bug #561. */ if ( strchr (gnupg_homedir (), '\\') ) { char *d, *buf = xmalloc (strlen (gnupg_homedir ())+1); const char *s; for (d=buf, s = gnupg_homedir (); *s; s++) { *d++ = *s == '\\'? '/': *s; #ifdef HAVE_W32_SYSTEM if (s[1] && IsDBCSLeadByte (*s)) *d++ = *++s; #endif } *d = 0; gnupg_set_homedir (buf); } #endif /* Initialize the secure memory. */ if (!gcry_control (GCRYCTL_INIT_SECMEM, SECMEM_BUFFER_SIZE, 0)) got_secmem = 1; #if defined(HAVE_GETUID) && defined(HAVE_GETEUID) /* There should be no way to get to this spot while still carrying setuid privs. Just in case, bomb out if we are. */ if ( getuid () != geteuid () ) BUG (); #endif maybe_setuid = 0; /* Okay, we are now working under our real uid */ /* malloc hooks go here ... */ malloc_hooks.malloc = gcry_malloc; malloc_hooks.realloc = gcry_realloc; malloc_hooks.free = gcry_free; assuan_set_malloc_hooks (&malloc_hooks); assuan_set_gpg_err_source (GPG_ERR_SOURCE_DEFAULT); setup_libassuan_logging (&opt.debug, NULL); /* Change UID and then set the homedir. */ if (changeuser && gnupg_chuid (changeuser, 0)) log_inc_errorcount (); /* Force later termination. */ gnupg_set_homedir (homedirvalue); /* Set default options which require that malloc stuff is ready. */ additional_weak_digest ("MD5"); parse_auto_key_locate (DEFAULT_AKL_LIST); argc = orig_argc; argv = orig_argv; pargs.argc = &argc; pargs.argv = &argv; /* We are re-using the struct, thus the reset flag. We OR the * flags so that the internal intialized flag won't be cleared. */ pargs.flags |= (ARGPARSE_FLAG_RESET | ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_SYS | ARGPARSE_FLAG_USER | ARGPARSE_FLAG_USERVERS); /* By this point we have a homedir, and cannot change it. */ check_permissions (gnupg_homedir (), 0); /* The configuraton directories for use by gpgrt_argparser. */ gpgrt_set_confdir (GPGRT_CONFDIR_SYS, gnupg_sysconfdir ()); gpgrt_set_confdir (GPGRT_CONFDIR_USER, gnupg_homedir ()); while (gpgrt_argparser (&pargs, opts, GPG_NAME EXTSEP_S "conf" )) { switch (pargs.r_opt) { case ARGPARSE_CONFFILE: if (debug_argparser) log_info (_("reading options from '%s'\n"), pargs.r_type? pargs.r.ret_str: "[cmdline]"); if (pargs.r_type) { xfree (last_configname); last_configname = xstrdup (pargs.r.ret_str); configname = last_configname; if (is_secured_filename (configname)) { pargs.r_opt = ARGPARSE_PERMISSION_ERROR; pargs.err = ARGPARSE_PRINT_ERROR; } else if (strncmp (configname, gnupg_sysconfdir (), strlen (gnupg_sysconfdir ()))) { /* This is not the global config file and thus we * need to check the permissions: If the file is * unsafe, then disable any external programs for * keyserver calls or photo IDs. Since the * external program to call is set in the options * file, a unsafe options file can lead to an * arbitrary program being run. */ if (check_permissions (configname, 1)) opt.exec_disable=1; } } else configname = NULL; break; /* case oOptions: */ /* case oNoOptions: */ /* We will never see these options here because * gpgrt_argparse handles them for us. */ /* break */ case aListConfig: case aListGcryptConfig: case aGPGConfList: case aGPGConfTest: set_cmd (&cmd, pargs.r_opt); /* Do not register a keyring for these commands. */ default_keyring = -1; break; case aCheckKeys: case aListPackets: case aImport: case aFastImport: case aSendKeys: case aRecvKeys: case aSearchKeys: case aRefreshKeys: case aFetchKeys: case aExport: #ifdef ENABLE_CARD_SUPPORT case aCardStatus: case aCardEdit: case aChangePIN: #endif /* ENABLE_CARD_SUPPORT*/ case aListKeys: case aLocateKeys: case aLocateExtKeys: case aListSigs: case aExportSecret: case aExportSecretSub: case aExportSshKey: case aSym: case aClearsign: case aGenRevoke: case aDesigRevoke: case aPrimegen: case aGenRandom: case aPrintMD: case aPrintMDs: case aListTrustDB: case aCheckTrustDB: case aUpdateTrustDB: case aFixTrustDB: case aListTrustPath: case aDeArmor: case aEnArmor: case aSign: case aQuickSignKey: case aQuickLSignKey: case aSignKey: case aLSignKey: case aStore: case aQuickKeygen: case aQuickAddUid: case aQuickAddKey: case aQuickRevUid: case aQuickSetExpire: case aQuickSetPrimaryUid: case aExportOwnerTrust: case aImportOwnerTrust: case aRebuildKeydbCaches: set_cmd (&cmd, pargs.r_opt); break; case aKeygen: case aFullKeygen: case aEditKey: case aDeleteSecretKeys: case aDeleteSecretAndPublicKeys: case aDeleteKeys: case aPasswd: set_cmd (&cmd, pargs.r_opt); greeting=1; break; case aShowKeys: set_cmd (&cmd, pargs.r_opt); opt.import_options |= IMPORT_SHOW; opt.import_options |= IMPORT_DRY_RUN; opt.import_options &= ~IMPORT_REPAIR_KEYS; opt.list_options |= LIST_SHOW_UNUSABLE_UIDS; opt.list_options |= LIST_SHOW_UNUSABLE_SUBKEYS; opt.list_options |= LIST_SHOW_NOTATIONS; opt.list_options |= LIST_SHOW_POLICY_URLS; break; case aDetachedSign: detached_sig = 1; set_cmd( &cmd, aSign ); break; case aDecryptFiles: multifile=1; /* fall through */ case aDecrypt: set_cmd( &cmd, aDecrypt); break; case aEncrFiles: multifile=1; /* fall through */ case aEncr: set_cmd( &cmd, aEncr); break; case aVerifyFiles: multifile=1; /* fall through */ case aVerify: set_cmd( &cmd, aVerify); break; case aServer: set_cmd (&cmd, pargs.r_opt); opt.batch = 1; break; case aTOFUPolicy: set_cmd (&cmd, pargs.r_opt); break; case oArmor: opt.armor = 1; opt.no_armor=0; break; case oOutput: opt.outfile = pargs.r.ret_str; break; case oMaxOutput: opt.max_output = pargs.r.ret_ulong; break; case oInputSizeHint: opt.input_size_hint = string_to_u64 (pargs.r.ret_str); break; case oChunkSize: opt.chunk_size = pargs.r.ret_int; break; case oQuiet: opt.quiet = 1; break; case oNoTTY: tty_no_terminal(1); break; case oDryRun: opt.dry_run = 1; break; case oInteractive: opt.interactive = 1; break; case oVerbose: opt.verbose++; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); opt.list_options|=LIST_SHOW_UNUSABLE_UIDS; opt.list_options|=LIST_SHOW_UNUSABLE_SUBKEYS; break; case oBatch: opt.batch = 1; nogreeting = 1; break; case oUseAgent: /* Dummy. */ break; case oNoUseAgent: obsolete_option (configname, pargs.lineno, "no-use-agent"); break; case oGpgAgentInfo: obsolete_option (configname, pargs.lineno, "gpg-agent-info"); break; case oUseKeyboxd: opt.use_keyboxd = 1; break; case oReaderPort: obsolete_scdaemon_option (configname, pargs.lineno, "reader-port"); break; case octapiDriver: obsolete_scdaemon_option (configname, pargs.lineno, "ctapi-driver"); break; case opcscDriver: obsolete_scdaemon_option (configname, pargs.lineno, "pcsc-driver"); break; case oDisableCCID: obsolete_scdaemon_option (configname, pargs.lineno, "disable-ccid"); break; case oHonorHttpProxy: obsolete_option (configname, pargs.lineno, "honor-http-proxy"); break; case oAnswerYes: opt.answer_yes = 1; break; case oAnswerNo: opt.answer_no = 1; break; case oKeyring: append_to_strlist( &nrings, pargs.r.ret_str); break; case oPrimaryKeyring: sl = append_to_strlist (&nrings, pargs.r.ret_str); sl->flags = KEYDB_RESOURCE_FLAG_PRIMARY; break; case oShowKeyring: deprecated_warning(configname,pargs.lineno,"--show-keyring", "--list-options ","show-keyring"); opt.list_options|=LIST_SHOW_KEYRING; break; case oDebug: if (parse_debug_flag (pargs.r.ret_str, &opt.debug, debug_flags)) { pargs.r_opt = ARGPARSE_INVALID_ARG; pargs.err = ARGPARSE_PRINT_ERROR; } break; case oDebugAll: opt.debug = ~0; break; case oDebugLevel: debug_level = pargs.r.ret_str; break; case oDebugIOLBF: break; /* Already set in pre-parse step. */ case oDebugSetIobufSize: opt_set_iobuf_size = pargs.r.ret_ulong; opt_set_iobuf_size_used = 1; break; case oDebugAllowLargeChunks: allow_large_chunks = 1; break; case oStatusFD: set_status_fd ( translate_sys2libc_fd_int (pargs.r.ret_int, 1) ); break; case oStatusFile: set_status_fd ( open_info_file (pargs.r.ret_str, 1, 0) ); break; case oAttributeFD: set_attrib_fd ( translate_sys2libc_fd_int (pargs.r.ret_int, 1) ); break; case oAttributeFile: set_attrib_fd ( open_info_file (pargs.r.ret_str, 1, 1) ); break; case oLoggerFD: log_set_fd (translate_sys2libc_fd_int (pargs.r.ret_int, 1)); break; case oLoggerFile: logfile = pargs.r.ret_str; break; case oWithFingerprint: opt.with_fingerprint = 1; opt.fingerprint++; break; case oWithSubkeyFingerprint: opt.with_subkey_fingerprint = 1; break; case oWithICAOSpelling: opt.with_icao_spelling = 1; break; case oFingerprint: opt.fingerprint++; fpr_maybe_cmd = 1; break; case oWithKeygrip: opt.with_keygrip = 1; break; case oWithKeyScreening: opt.with_key_screening = 1; break; case oWithSecret: opt.with_secret = 1; break; case oWithWKDHash: opt.with_wkd_hash = 1; break; case oWithKeyOrigin: opt.with_key_origin = 1; break; case oSecretKeyring: /* Ignore this old option. */ break; case oNoArmor: opt.no_armor=1; opt.armor=0; break; case oNoDefKeyring: if (default_keyring > 0) default_keyring = 0; break; case oNoKeyring: default_keyring = -1; break; case oNoGreeting: nogreeting = 1; break; case oNoVerbose: opt.verbose = 0; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); opt.list_sigs=0; break; case oQuickRandom: gcry_control (GCRYCTL_ENABLE_QUICK_RANDOM, 0); break; case oEmitVersion: opt.emit_version++; break; case oNoEmitVersion: opt.emit_version=0; break; case oCompletesNeeded: opt.completes_needed = pargs.r.ret_int; break; case oMarginalsNeeded: opt.marginals_needed = pargs.r.ret_int; break; case oMaxCertDepth: opt.max_cert_depth = pargs.r.ret_int; break; #ifndef NO_TRUST_MODELS case oTrustDBName: trustdb_name = pargs.r.ret_str; break; #endif /*!NO_TRUST_MODELS*/ case oDefaultKey: sl = add_to_strlist (&opt.def_secret_key, pargs.r.ret_str); sl->flags = (pargs.r_opt << PK_LIST_SHIFT); if (configname) sl->flags |= PK_LIST_CONFIG; break; case oDefRecipient: if( *pargs.r.ret_str ) { xfree (opt.def_recipient); opt.def_recipient = make_username(pargs.r.ret_str); } break; case oDefRecipientSelf: xfree(opt.def_recipient); opt.def_recipient = NULL; opt.def_recipient_self = 1; break; case oNoDefRecipient: xfree(opt.def_recipient); opt.def_recipient = NULL; opt.def_recipient_self = 0; break; case oHomedir: break; case oChUid: break; /* Command line only (see above). */ case oNoBatch: opt.batch = 0; break; case oWithTofuInfo: opt.with_tofu_info = 1; break; case oWithKeyData: opt.with_key_data=1; /*FALLTHRU*/ case oWithColons: opt.with_colons=':'; break; case oWithSigCheck: opt.check_sigs = 1; /*FALLTHRU*/ case oWithSigList: opt.list_sigs = 1; break; case oSkipVerify: opt.skip_verify=1; break; case oSkipHiddenRecipients: opt.skip_hidden_recipients = 1; break; case oNoSkipHiddenRecipients: opt.skip_hidden_recipients = 0; break; case aListSecretKeys: set_cmd( &cmd, aListSecretKeys); break; #ifndef NO_TRUST_MODELS /* There are many programs (like mutt) that call gpg with --always-trust so keep this option around for a long time. */ case oAlwaysTrust: opt.trust_model=TM_ALWAYS; break; case oTrustModel: parse_trust_model(pargs.r.ret_str); break; #endif /*!NO_TRUST_MODELS*/ case oTOFUDefaultPolicy: opt.tofu_default_policy = parse_tofu_policy (pargs.r.ret_str); break; case oTOFUDBFormat: obsolete_option (configname, pargs.lineno, "tofu-db-format"); break; case oForceOwnertrust: log_info(_("Note: %s is not for normal use!\n"), "--force-ownertrust"); opt.force_ownertrust=string_to_trust_value(pargs.r.ret_str); if(opt.force_ownertrust==-1) { log_error("invalid ownertrust '%s'\n",pargs.r.ret_str); opt.force_ownertrust=0; } break; case oCompliance: { int compliance = gnupg_parse_compliance_option (pargs.r.ret_str, compliance_options, DIM (compliance_options), opt.quiet); if (compliance < 0) g10_exit (1); set_compliance_option (compliance); } break; case oOpenPGP: case oRFC2440: case oRFC4880: case oRFC4880bis: case oPGP7: case oPGP8: case oGnuPG: set_compliance_option (pargs.r_opt); break; case oRFC2440Text: opt.rfc2440_text=1; break; case oNoRFC2440Text: opt.rfc2440_text=0; break; case oSetFilename: if(utf8_strings) opt.set_filename = pargs.r.ret_str; else opt.set_filename = native_to_utf8(pargs.r.ret_str); break; case oForYourEyesOnly: eyes_only = 1; break; case oNoForYourEyesOnly: eyes_only = 0; break; case oSetPolicyURL: add_policy_url(pargs.r.ret_str,0); add_policy_url(pargs.r.ret_str,1); break; case oSigPolicyURL: add_policy_url(pargs.r.ret_str,0); break; case oCertPolicyURL: add_policy_url(pargs.r.ret_str,1); break; case oShowPolicyURL: deprecated_warning(configname,pargs.lineno,"--show-policy-url", "--list-options ","show-policy-urls"); deprecated_warning(configname,pargs.lineno,"--show-policy-url", "--verify-options ","show-policy-urls"); opt.list_options|=LIST_SHOW_POLICY_URLS; opt.verify_options|=VERIFY_SHOW_POLICY_URLS; break; case oNoShowPolicyURL: deprecated_warning(configname,pargs.lineno,"--no-show-policy-url", "--list-options ","no-show-policy-urls"); deprecated_warning(configname,pargs.lineno,"--no-show-policy-url", "--verify-options ","no-show-policy-urls"); opt.list_options&=~LIST_SHOW_POLICY_URLS; opt.verify_options&=~VERIFY_SHOW_POLICY_URLS; break; case oSigKeyserverURL: add_keyserver_url(pargs.r.ret_str,0); break; case oUseEmbeddedFilename: opt.flags.use_embedded_filename=1; break; case oNoUseEmbeddedFilename: opt.flags.use_embedded_filename=0; break; case oComment: if(pargs.r.ret_str[0]) append_to_strlist(&opt.comments,pargs.r.ret_str); break; case oDefaultComment: deprecated_warning(configname,pargs.lineno, "--default-comment","--no-comments",""); /* fall through */ case oNoComments: free_strlist(opt.comments); opt.comments=NULL; break; case oThrowKeyids: opt.throw_keyids = 1; break; case oNoThrowKeyids: opt.throw_keyids = 0; break; case oShowPhotos: deprecated_warning(configname,pargs.lineno,"--show-photos", "--list-options ","show-photos"); deprecated_warning(configname,pargs.lineno,"--show-photos", "--verify-options ","show-photos"); opt.list_options|=LIST_SHOW_PHOTOS; opt.verify_options|=VERIFY_SHOW_PHOTOS; break; case oNoShowPhotos: deprecated_warning(configname,pargs.lineno,"--no-show-photos", "--list-options ","no-show-photos"); deprecated_warning(configname,pargs.lineno,"--no-show-photos", "--verify-options ","no-show-photos"); opt.list_options&=~LIST_SHOW_PHOTOS; opt.verify_options&=~VERIFY_SHOW_PHOTOS; break; case oPhotoViewer: opt.photo_viewer = pargs.r.ret_str; break; case oForceAEAD: opt.force_aead = 1; break; case oDisableSignerUID: opt.flags.disable_signer_uid = 1; break; case oIncludeKeyBlock: opt.flags.include_key_block = 1; break; case oNoIncludeKeyBlock: opt.flags.include_key_block = 0; break; case oS2KMode: opt.s2k_mode = pargs.r.ret_int; break; case oS2KDigest: s2k_digest_string = xstrdup(pargs.r.ret_str); break; case oS2KCipher: s2k_cipher_string = xstrdup(pargs.r.ret_str); break; case oS2KCount: if (pargs.r.ret_int) opt.s2k_count = encode_s2k_iterations (pargs.r.ret_int); else opt.s2k_count = 0; /* Auto-calibrate when needed. */ break; case oRecipient: case oHiddenRecipient: case oRecipientFile: case oHiddenRecipientFile: /* Store the recipient. Note that we also store the * option as private data in the flags. This is achieved * by shifting the option value to the left so to keep * enough space for the flags. */ sl = add_to_strlist2( &remusr, pargs.r.ret_str, utf8_strings ); sl->flags = (pargs.r_opt << PK_LIST_SHIFT); if (configname) sl->flags |= PK_LIST_CONFIG; if (pargs.r_opt == oHiddenRecipient || pargs.r_opt == oHiddenRecipientFile) sl->flags |= PK_LIST_HIDDEN; if (pargs.r_opt == oRecipientFile || pargs.r_opt == oHiddenRecipientFile) sl->flags |= PK_LIST_FROM_FILE; any_explicit_recipient = 1; break; case oEncryptTo: case oHiddenEncryptTo: /* Store an additional recipient. */ sl = add_to_strlist2( &remusr, pargs.r.ret_str, utf8_strings ); sl->flags = ((pargs.r_opt << PK_LIST_SHIFT) | PK_LIST_ENCRYPT_TO); if (configname) sl->flags |= PK_LIST_CONFIG; if (pargs.r_opt == oHiddenEncryptTo) sl->flags |= PK_LIST_HIDDEN; break; case oNoEncryptTo: opt.no_encrypt_to = 1; break; case oEncryptToDefaultKey: opt.encrypt_to_default_key = configname ? 2 : 1; break; case oTrySecretKey: add_to_strlist2 (&opt.secret_keys_to_try, pargs.r.ret_str, utf8_strings); break; case oMimemode: opt.mimemode = opt.textmode = 1; break; case oTextmodeShort: opt.textmode = 2; break; case oTextmode: opt.textmode=1; break; case oNoTextmode: opt.textmode=opt.mimemode=0; break; case oExpert: opt.expert = 1; break; case oNoExpert: opt.expert = 0; break; case oDefSigExpire: if(*pargs.r.ret_str!='\0') { if(parse_expire_string(pargs.r.ret_str)==(u32)-1) log_error(_("'%s' is not a valid signature expiration\n"), pargs.r.ret_str); else opt.def_sig_expire=pargs.r.ret_str; } break; case oAskSigExpire: opt.ask_sig_expire = 1; break; case oNoAskSigExpire: opt.ask_sig_expire = 0; break; case oDefCertExpire: if(*pargs.r.ret_str!='\0') { if(parse_expire_string(pargs.r.ret_str)==(u32)-1) log_error(_("'%s' is not a valid signature expiration\n"), pargs.r.ret_str); else opt.def_cert_expire=pargs.r.ret_str; } break; case oAskCertExpire: opt.ask_cert_expire = 1; break; case oNoAskCertExpire: opt.ask_cert_expire = 0; break; case oDefCertLevel: opt.def_cert_level=pargs.r.ret_int; break; case oMinCertLevel: opt.min_cert_level=pargs.r.ret_int; break; case oAskCertLevel: opt.ask_cert_level = 1; break; case oNoAskCertLevel: opt.ask_cert_level = 0; break; case oLocalUser: /* store the local users */ sl = add_to_strlist2( &locusr, pargs.r.ret_str, utf8_strings ); sl->flags = (pargs.r_opt << PK_LIST_SHIFT); if (configname) sl->flags |= PK_LIST_CONFIG; break; case oSender: { char *mbox = mailbox_from_userid (pargs.r.ret_str, 0); if (!mbox) log_error (_("\"%s\" is not a proper mail address\n"), pargs.r.ret_str); else { add_to_strlist (&opt.sender_list, mbox); xfree (mbox); } } break; case oCompress: /* this is the -z command line option */ opt.compress_level = opt.bz2_compress_level = pargs.r.ret_int; break; case oCompressLevel: opt.compress_level = pargs.r.ret_int; break; case oBZ2CompressLevel: opt.bz2_compress_level = pargs.r.ret_int; break; case oBZ2DecompressLowmem: opt.bz2_decompress_lowmem=1; break; case oPassphrase: set_passphrase_from_string (pargs.r_type ? pargs.r.ret_str : ""); break; case oPassphraseFD: pwfd = translate_sys2libc_fd_int (pargs.r.ret_int, 0); break; case oPassphraseFile: pwfd = open_info_file (pargs.r.ret_str, 0, 1); break; case oPassphraseRepeat: opt.passphrase_repeat = pargs.r.ret_int; break; case oPinentryMode: opt.pinentry_mode = parse_pinentry_mode (pargs.r.ret_str); if (opt.pinentry_mode == -1) log_error (_("invalid pinentry mode '%s'\n"), pargs.r.ret_str); break; case oRequestOrigin: opt.request_origin = parse_request_origin (pargs.r.ret_str); if (opt.request_origin == -1) log_error (_("invalid request origin '%s'\n"), pargs.r.ret_str); break; case oCommandFD: opt.command_fd = translate_sys2libc_fd_int (pargs.r.ret_int, 0); if (! gnupg_fd_valid (opt.command_fd)) log_error ("command-fd is invalid: %s\n", strerror (errno)); break; case oCommandFile: opt.command_fd = open_info_file (pargs.r.ret_str, 0, 1); break; case oCipherAlgo: def_cipher_string = xstrdup(pargs.r.ret_str); break; case oAEADAlgo: def_aead_string = xstrdup (pargs.r.ret_str); break; case oDigestAlgo: def_digest_string = xstrdup(pargs.r.ret_str); break; case oCompressAlgo: /* If it is all digits, stick a Z in front of it for later. This is for backwards compatibility with versions that took the compress algorithm number. */ { char *pt=pargs.r.ret_str; while(*pt) { if (!isascii (*pt) || !isdigit (*pt)) break; pt++; } if(*pt=='\0') { compress_algo_string=xmalloc(strlen(pargs.r.ret_str)+2); strcpy(compress_algo_string,"Z"); strcat(compress_algo_string,pargs.r.ret_str); } else compress_algo_string = xstrdup(pargs.r.ret_str); } break; case oCertDigestAlgo: cert_digest_string = xstrdup(pargs.r.ret_str); break; case oNoSecmemWarn: gcry_control (GCRYCTL_DISABLE_SECMEM_WARN); break; case oRequireSecmem: require_secmem=1; break; case oNoRequireSecmem: require_secmem=0; break; case oNoPermissionWarn: opt.no_perm_warn=1; break; case oDisplayCharset: if( set_native_charset( pargs.r.ret_str ) ) log_error(_("'%s' is not a valid character set\n"), pargs.r.ret_str); break; case oNotDashEscaped: opt.not_dash_escaped = 1; break; case oEscapeFrom: opt.escape_from = 1; break; case oNoEscapeFrom: opt.escape_from = 0; break; case oLockOnce: opt.lock_once = 1; break; case oLockNever: dotlock_disable (); break; case oLockMultiple: #ifndef __riscos__ opt.lock_once = 0; #else /* __riscos__ */ riscos_not_implemented("lock-multiple"); #endif /* __riscos__ */ break; case oKeyServer: { keyserver_spec_t keyserver; keyserver = parse_keyserver_uri (pargs.r.ret_str, 0); if (!keyserver) log_error (_("could not parse keyserver URL\n")); else { /* We only support a single keyserver. Later ones override earlier ones. (Since we parse the config file first and then the command line arguments, the command line takes precedence.) */ if (opt.keyserver) free_keyserver_spec (opt.keyserver); opt.keyserver = keyserver; } } break; case oKeyServerOptions: if(!parse_keyserver_options(pargs.r.ret_str)) { if(configname) log_error(_("%s:%d: invalid keyserver options\n"), configname,pargs.lineno); else log_error(_("invalid keyserver options\n")); } break; case oImportOptions: if(!parse_import_options(pargs.r.ret_str,&opt.import_options,1)) { if(configname) log_error(_("%s:%d: invalid import options\n"), configname,pargs.lineno); else log_error(_("invalid import options\n")); } break; case oImportFilter: rc = parse_and_set_import_filter (pargs.r.ret_str); if (rc) log_error (_("invalid filter option: %s\n"), gpg_strerror (rc)); break; case oExportOptions: if(!parse_export_options(pargs.r.ret_str,&opt.export_options,1)) { if(configname) log_error(_("%s:%d: invalid export options\n"), configname,pargs.lineno); else log_error(_("invalid export options\n")); } break; case oExportFilter: rc = parse_and_set_export_filter (pargs.r.ret_str); if (rc) log_error (_("invalid filter option: %s\n"), gpg_strerror (rc)); break; case oListOptions: if(!parse_list_options(pargs.r.ret_str)) { if(configname) log_error(_("%s:%d: invalid list options\n"), configname,pargs.lineno); else log_error(_("invalid list options\n")); } break; case oVerifyOptions: { struct parse_options vopts[]= { {"show-photos",VERIFY_SHOW_PHOTOS,NULL, N_("display photo IDs during signature verification")}, {"show-policy-urls",VERIFY_SHOW_POLICY_URLS,NULL, N_("show policy URLs during signature verification")}, {"show-notations",VERIFY_SHOW_NOTATIONS,NULL, N_("show all notations during signature verification")}, {"show-std-notations",VERIFY_SHOW_STD_NOTATIONS,NULL, N_("show IETF standard notations during signature verification")}, {"show-standard-notations",VERIFY_SHOW_STD_NOTATIONS,NULL, NULL}, {"show-user-notations",VERIFY_SHOW_USER_NOTATIONS,NULL, N_("show user-supplied notations during signature verification")}, {"show-keyserver-urls",VERIFY_SHOW_KEYSERVER_URLS,NULL, N_("show preferred keyserver URLs during signature verification")}, {"show-uid-validity",VERIFY_SHOW_UID_VALIDITY,NULL, N_("show user ID validity during signature verification")}, {"show-unusable-uids",VERIFY_SHOW_UNUSABLE_UIDS,NULL, N_("show revoked and expired user IDs in signature verification")}, {"show-primary-uid-only",VERIFY_SHOW_PRIMARY_UID_ONLY,NULL, N_("show only the primary user ID in signature verification")}, {"pka-lookups",VERIFY_PKA_LOOKUPS,NULL, N_("validate signatures with PKA data")}, {"pka-trust-increase",VERIFY_PKA_TRUST_INCREASE,NULL, N_("elevate the trust of signatures with valid PKA data")}, {NULL,0,NULL,NULL} }; if(!parse_options(pargs.r.ret_str,&opt.verify_options,vopts,1)) { if(configname) log_error(_("%s:%d: invalid verify options\n"), configname,pargs.lineno); else log_error(_("invalid verify options\n")); } } break; case oTempDir: opt.temp_dir=pargs.r.ret_str; break; case oExecPath: if(set_exec_path(pargs.r.ret_str)) log_error(_("unable to set exec-path to %s\n"),pargs.r.ret_str); else opt.exec_path_set=1; break; case oSetNotation: add_notation_data( pargs.r.ret_str, 0 ); add_notation_data( pargs.r.ret_str, 1 ); break; case oSigNotation: add_notation_data( pargs.r.ret_str, 0 ); break; case oCertNotation: add_notation_data( pargs.r.ret_str, 1 ); break; case oKnownNotation: register_known_notation (pargs.r.ret_str); break; case oShowNotation: deprecated_warning(configname,pargs.lineno,"--show-notation", "--list-options ","show-notations"); deprecated_warning(configname,pargs.lineno,"--show-notation", "--verify-options ","show-notations"); opt.list_options|=LIST_SHOW_NOTATIONS; opt.verify_options|=VERIFY_SHOW_NOTATIONS; break; case oNoShowNotation: deprecated_warning(configname,pargs.lineno,"--no-show-notation", "--list-options ","no-show-notations"); deprecated_warning(configname,pargs.lineno,"--no-show-notation", "--verify-options ","no-show-notations"); opt.list_options&=~LIST_SHOW_NOTATIONS; opt.verify_options&=~VERIFY_SHOW_NOTATIONS; break; case oUtf8Strings: utf8_strings = 1; break; case oNoUtf8Strings: utf8_strings = 0; break; case oDisableCipherAlgo: { int algo = string_to_cipher_algo (pargs.r.ret_str); gcry_cipher_ctl (NULL, GCRYCTL_DISABLE_ALGO, &algo, sizeof algo); } break; case oDisablePubkeyAlgo: { int algo = gcry_pk_map_name (pargs.r.ret_str); gcry_pk_ctl (GCRYCTL_DISABLE_ALGO, &algo, sizeof algo); } break; case oNoSigCache: opt.no_sig_cache = 1; break; case oAllowNonSelfsignedUID: opt.allow_non_selfsigned_uid = 1; break; case oNoAllowNonSelfsignedUID: opt.allow_non_selfsigned_uid=0; break; case oAllowFreeformUID: opt.allow_freeform_uid = 1; break; case oNoAllowFreeformUID: opt.allow_freeform_uid = 0; break; case oNoLiteral: opt.no_literal = 1; break; case oSetFilesize: opt.set_filesize = pargs.r.ret_ulong; break; case oFastListMode: opt.fast_list_mode = 1; break; case oFixedListMode: /* Dummy */ break; case oLegacyListMode: opt.legacy_list_mode = 1; break; case oPrintPKARecords: print_pka_records = 1; break; case oPrintDANERecords: print_dane_records = 1; break; case oListOnly: opt.list_only=1; break; case oIgnoreTimeConflict: opt.ignore_time_conflict = 1; break; case oIgnoreValidFrom: opt.ignore_valid_from = 1; break; case oIgnoreCrcError: opt.ignore_crc_error = 1; break; case oIgnoreMDCError: opt.ignore_mdc_error = 1; break; case oNoRandomSeedFile: use_random_seed = 0; break; case oAutoKeyImport: opt.flags.auto_key_import = 1; break; case oNoAutoKeyImport: opt.flags.auto_key_import = 0; break; case oAutoKeyRetrieve: opt.keyserver_options.options |= KEYSERVER_AUTO_KEY_RETRIEVE; break; case oNoAutoKeyRetrieve: opt.keyserver_options.options &= ~KEYSERVER_AUTO_KEY_RETRIEVE; break; case oShowSessionKey: opt.show_session_key = 1; break; case oOverrideSessionKey: opt.override_session_key = pargs.r.ret_str; break; case oOverrideSessionKeyFD: ovrseskeyfd = translate_sys2libc_fd_int (pargs.r.ret_int, 0); break; case oMergeOnly: deprecated_warning(configname,pargs.lineno,"--merge-only", "--import-options ","merge-only"); opt.import_options|=IMPORT_MERGE_ONLY; break; case oAllowSecretKeyImport: /* obsolete */ break; case oTryAllSecrets: opt.try_all_secrets = 1; break; case oTrustedKey: register_trusted_key( pargs.r.ret_str ); break; case oEnableSpecialFilenames: enable_special_filenames (); break; case oNoExpensiveTrustChecks: opt.no_expensive_trust_checks=1; break; case oAutoCheckTrustDB: opt.no_auto_check_trustdb=0; break; case oNoAutoCheckTrustDB: opt.no_auto_check_trustdb=1; break; case oPreservePermissions: opt.preserve_permissions=1; break; case oDefaultPreferenceList: opt.def_preference_list = pargs.r.ret_str; break; case oDefaultKeyserverURL: { keyserver_spec_t keyserver; keyserver = parse_keyserver_uri (pargs.r.ret_str,1 ); if (!keyserver) log_error (_("could not parse keyserver URL\n")); else free_keyserver_spec (keyserver); opt.def_keyserver_url = pargs.r.ret_str; } break; case oPersonalCipherPreferences: pers_cipher_list=pargs.r.ret_str; break; case oPersonalAEADPreferences: pers_aead_list = pargs.r.ret_str; break; case oPersonalDigestPreferences: pers_digest_list=pargs.r.ret_str; break; case oPersonalCompressPreferences: pers_compress_list=pargs.r.ret_str; break; case oAgentProgram: opt.agent_program = pargs.r.ret_str; break; case oKeyboxdProgram: opt.keyboxd_program = pargs.r.ret_str; break; case oDirmngrProgram: opt.dirmngr_program = pargs.r.ret_str; break; case oDisableDirmngr: opt.disable_dirmngr = 1; break; case oWeakDigest: additional_weak_digest(pargs.r.ret_str); break; case oUnwrap: opt.unwrap_encryption = 1; break; case oOnlySignTextIDs: opt.only_sign_text_ids = 1; break; case oDisplay: set_opt_session_env ("DISPLAY", pargs.r.ret_str); break; case oTTYname: set_opt_session_env ("GPG_TTY", pargs.r.ret_str); break; case oTTYtype: set_opt_session_env ("TERM", pargs.r.ret_str); break; case oXauthority: set_opt_session_env ("XAUTHORITY", pargs.r.ret_str); break; case oLCctype: opt.lc_ctype = pargs.r.ret_str; break; case oLCmessages: opt.lc_messages = pargs.r.ret_str; break; case oGroup: add_group(pargs.r.ret_str); break; case oUnGroup: rm_group(pargs.r.ret_str); break; case oNoGroups: while(opt.grouplist) { struct groupitem *iter=opt.grouplist; free_strlist(iter->values); opt.grouplist=opt.grouplist->next; xfree(iter); } break; case oMangleDosFilenames: opt.mangle_dos_filenames = 1; break; case oNoMangleDosFilenames: opt.mangle_dos_filenames = 0; break; case oEnableProgressFilter: opt.enable_progress_filter = 1; break; case oMultifile: multifile=1; break; case oKeyidFormat: if(ascii_strcasecmp(pargs.r.ret_str,"short")==0) opt.keyid_format=KF_SHORT; else if(ascii_strcasecmp(pargs.r.ret_str,"long")==0) opt.keyid_format=KF_LONG; else if(ascii_strcasecmp(pargs.r.ret_str,"0xshort")==0) opt.keyid_format=KF_0xSHORT; else if(ascii_strcasecmp(pargs.r.ret_str,"0xlong")==0) opt.keyid_format=KF_0xLONG; else if(ascii_strcasecmp(pargs.r.ret_str,"none")==0) opt.keyid_format = KF_NONE; else log_error("unknown keyid-format '%s'\n",pargs.r.ret_str); break; case oExitOnStatusWriteError: opt.exit_on_status_write_error = 1; break; case oLimitCardInsertTries: opt.limit_card_insert_tries = pargs.r.ret_int; break; case oRequireCrossCert: opt.flags.require_cross_cert=1; break; case oNoRequireCrossCert: opt.flags.require_cross_cert=0; break; case oAutoKeyLocate: if (default_akl) { /* This is the first time --auto-key-locate is seen. * We need to reset the default akl. */ default_akl = 0; release_akl(); } if(!parse_auto_key_locate(pargs.r.ret_str)) { if(configname) log_error(_("%s:%d: invalid auto-key-locate list\n"), configname,pargs.lineno); else log_error(_("invalid auto-key-locate list\n")); } break; case oNoAutoKeyLocate: release_akl(); break; case oKeyOrigin: if(!parse_key_origin (pargs.r.ret_str)) log_error (_("invalid argument for option \"%.50s\"\n"), "--key-origin"); break; case oEnableLargeRSA: #if SECMEM_BUFFER_SIZE >= 65536 opt.flags.large_rsa=1; #else if (configname) log_info("%s:%d: WARNING: gpg not built with large secure " "memory buffer. Ignoring enable-large-rsa\n", configname,pargs.lineno); else log_info("WARNING: gpg not built with large secure " "memory buffer. Ignoring --enable-large-rsa\n"); #endif /* SECMEM_BUFFER_SIZE >= 65536 */ break; case oDisableLargeRSA: opt.flags.large_rsa=0; break; case oEnableDSA2: opt.flags.dsa2=1; break; case oDisableDSA2: opt.flags.dsa2=0; break; case oAllowWeakDigestAlgos: opt.flags.allow_weak_digest_algos = 1; break; case oAllowWeakKeySignatures: opt.flags.allow_weak_key_signatures = 1; break; case oFakedSystemTime: { size_t len = strlen (pargs.r.ret_str); int freeze = 0; time_t faked_time; if (len > 0 && pargs.r.ret_str[len-1] == '!') { freeze = 1; pargs.r.ret_str[len-1] = '\0'; } faked_time = isotime2epoch (pargs.r.ret_str); if (faked_time == (time_t)(-1)) faked_time = (time_t)strtoul (pargs.r.ret_str, NULL, 10); gnupg_set_time (faked_time, freeze); } break; case oNoAutostart: opt.autostart = 0; break; case oNoSymkeyCache: opt.no_symkey_cache = 1; break; case oDefaultNewKeyAlgo: opt.def_new_key_algo = pargs.r.ret_str; break; case oUseOnlyOpenPGPCard: opt.flags.use_only_openpgp_card = 1; break; case oFullTimestrings: opt.flags.full_timestrings = 1; break; case oNoop: break; default: if (configname) pargs.err = ARGPARSE_PRINT_WARNING; else { pargs.err = ARGPARSE_PRINT_ERROR; /* The argparse function calls a plain exit and thus * we need to print a status here. */ write_status_failure ("option-parser", gpg_error(GPG_ERR_GENERAL)); } break; } } gpgrt_argparse (NULL, &pargs, NULL); /* Release internal state. */ if (log_get_errorcount (0)) { write_status_failure ("option-parser", gpg_error(GPG_ERR_GENERAL)); g10_exit(2); } /* The command --gpgconf-list is pretty simple and may be called directly after the option parsing. */ if (cmd == aGPGConfList) { gpgconf_list (); g10_exit (0); } xfree (last_configname); if (print_dane_records) log_error ("invalid option \"%s\"; use \"%s\" instead\n", "--print-dane-records", "--export-options export-dane"); if (print_pka_records) log_error ("invalid option \"%s\"; use \"%s\" instead\n", "--print-pks-records", "--export-options export-pka"); if (log_get_errorcount (0)) { write_status_failure ("option-checking", gpg_error(GPG_ERR_GENERAL)); g10_exit(2); } if( nogreeting ) greeting = 0; if( greeting ) { es_fprintf (es_stderr, "%s %s; %s\n", gpgrt_strusage(11), gpgrt_strusage(13), gpgrt_strusage(14)); es_fprintf (es_stderr, "%s\n", gpgrt_strusage(15) ); } #ifdef IS_DEVELOPMENT_VERSION if (!opt.batch) { const char *s; if((s=gpgrt_strusage(25))) log_info("%s\n",s); if((s=gpgrt_strusage(26))) log_info("%s\n",s); if((s=gpgrt_strusage(27))) log_info("%s\n",s); } #endif /* Init threading which is used by some helper functions. */ npth_init (); assuan_set_system_hooks (ASSUAN_SYSTEM_NPTH); gpgrt_set_syscall_clamp (npth_unprotect, npth_protect); if (logfile) { log_set_file (logfile); log_set_prefix (NULL, (GPGRT_LOG_WITH_PREFIX | GPGRT_LOG_WITH_TIME | GPGRT_LOG_WITH_PID )); } if (opt.verbose > 2) log_info ("using character set '%s'\n", get_native_charset ()); if( may_coredump && !opt.quiet ) log_info(_("WARNING: program may create a core file!\n")); if (opt.flags.rfc4880bis) { if (opt.verbose) log_info ("Note: RFC4880bis features are enabled.\n"); } else { opt.mimemode = 0; /* This will use text mode instead. */ } if (eyes_only) { if (opt.set_filename) log_info(_("WARNING: %s overrides %s\n"), "--for-your-eyes-only","--set-filename"); opt.set_filename="_CONSOLE"; } if (opt.no_literal) { log_info(_("Note: %s is not for normal use!\n"), "--no-literal"); if (opt.textmode) log_error(_("%s not allowed with %s!\n"), "--textmode", "--no-literal" ); if (opt.set_filename) log_error(_("%s makes no sense with %s!\n"), eyes_only?"--for-your-eyes-only":"--set-filename", "--no-literal" ); } if (opt.set_filesize) log_info(_("Note: %s is not for normal use!\n"), "--set-filesize"); if( opt.batch ) tty_batchmode( 1 ); if (gnupg_faked_time_p ()) { gnupg_isotime_t tbuf; log_info (_("WARNING: running with faked system time: ")); gnupg_get_isotime (tbuf); dump_isotime (tbuf); log_printf ("\n"); } /* Print a warning if an argument looks like an option. */ if (!opt.quiet && !(pargs.flags & ARGPARSE_FLAG_STOP_SEEN)) { int i; for (i=0; i < argc; i++) if (argv[i][0] == '-' && argv[i][1] == '-') log_info (_("Note: '%s' is not considered an option\n"), argv[i]); } gcry_control (GCRYCTL_RESUME_SECMEM_WARN); if(require_secmem && !got_secmem) { log_info(_("will not run with insecure memory due to %s\n"), "--require-secmem"); write_status_failure ("option-checking", gpg_error(GPG_ERR_GENERAL)); g10_exit(2); } set_debug (debug_level); if (DBG_CLOCK) log_clock ("start"); /* Do these after the switch(), so they can override settings. */ if (PGP7) { /* That does not anymore work because we have no more support for v3 signatures. */ opt.escape_from=1; opt.ask_sig_expire=0; } else if(PGP8) { opt.escape_from=1; } if( def_cipher_string ) { opt.def_cipher_algo = string_to_cipher_algo (def_cipher_string); xfree(def_cipher_string); def_cipher_string = NULL; if ( openpgp_cipher_test_algo (opt.def_cipher_algo) ) log_error(_("selected cipher algorithm is invalid\n")); } if (def_aead_string) { opt.def_aead_algo = string_to_aead_algo (def_aead_string); xfree (def_aead_string); def_aead_string = NULL; if (openpgp_aead_test_algo (opt.def_aead_algo)) log_error(_("selected AEAD algorithm is invalid\n")); } if( def_digest_string ) { opt.def_digest_algo = string_to_digest_algo (def_digest_string); xfree(def_digest_string); def_digest_string = NULL; if ( openpgp_md_test_algo (opt.def_digest_algo) ) log_error(_("selected digest algorithm is invalid\n")); } if( compress_algo_string ) { opt.compress_algo = string_to_compress_algo(compress_algo_string); xfree(compress_algo_string); compress_algo_string = NULL; if( check_compress_algo(opt.compress_algo) ) log_error(_("selected compression algorithm is invalid\n")); } if( cert_digest_string ) { opt.cert_digest_algo = string_to_digest_algo (cert_digest_string); xfree(cert_digest_string); cert_digest_string = NULL; if (openpgp_md_test_algo(opt.cert_digest_algo)) log_error(_("selected certification digest algorithm is invalid\n")); } if( s2k_cipher_string ) { opt.s2k_cipher_algo = string_to_cipher_algo (s2k_cipher_string); xfree(s2k_cipher_string); s2k_cipher_string = NULL; if (openpgp_cipher_test_algo (opt.s2k_cipher_algo)) log_error(_("selected cipher algorithm is invalid\n")); } if( s2k_digest_string ) { opt.s2k_digest_algo = string_to_digest_algo (s2k_digest_string); xfree(s2k_digest_string); s2k_digest_string = NULL; if (openpgp_md_test_algo(opt.s2k_digest_algo)) log_error(_("selected digest algorithm is invalid\n")); } if( opt.completes_needed < 1 ) log_error(_("completes-needed must be greater than 0\n")); if( opt.marginals_needed < 2 ) log_error(_("marginals-needed must be greater than 1\n")); if( opt.max_cert_depth < 1 || opt.max_cert_depth > 255 ) log_error(_("max-cert-depth must be in the range from 1 to 255\n")); if(opt.def_cert_level<0 || opt.def_cert_level>3) log_error(_("invalid default-cert-level; must be 0, 1, 2, or 3\n")); if( opt.min_cert_level < 1 || opt.min_cert_level > 3 ) log_error(_("invalid min-cert-level; must be 1, 2, or 3\n")); switch( opt.s2k_mode ) { case 0: log_info(_("Note: simple S2K mode (0) is strongly discouraged\n")); break; case 1: case 3: break; default: log_error(_("invalid S2K mode; must be 0, 1 or 3\n")); } /* This isn't actually needed, but does serve to error out if the string is invalid. */ if(opt.def_preference_list && keygen_set_std_prefs(opt.def_preference_list,0)) log_error(_("invalid default preferences\n")); if(pers_cipher_list && keygen_set_std_prefs(pers_cipher_list,PREFTYPE_SYM)) log_error(_("invalid personal cipher preferences\n")); if (pers_aead_list && keygen_set_std_prefs (pers_aead_list, PREFTYPE_AEAD)) log_error(_("invalid personal AEAD preferences\n")); if(pers_digest_list && keygen_set_std_prefs(pers_digest_list,PREFTYPE_HASH)) log_error(_("invalid personal digest preferences\n")); if(pers_compress_list && keygen_set_std_prefs(pers_compress_list,PREFTYPE_ZIP)) log_error(_("invalid personal compress preferences\n")); /* Check chunk size. Please fix also the man page if you change * the default. The limits are given by the specs. */ if (!opt.chunk_size) opt.chunk_size = 27; /* Default to the suggested max of 128 MiB. */ else if (opt.chunk_size < 6) { opt.chunk_size = 6; log_info (_("chunk size invalid - using %d\n"), opt.chunk_size); } else if (opt.chunk_size > (allow_large_chunks? 62 : 27)) { opt.chunk_size = (allow_large_chunks? 62 : 27); log_info (_("chunk size invalid - using %d\n"), opt.chunk_size); } /* We don't support all possible commands with multifile yet */ if(multifile) { char *cmdname; switch(cmd) { case aSign: cmdname="--sign"; break; case aSignEncr: cmdname="--sign --encrypt"; break; case aClearsign: cmdname="--clear-sign"; break; case aDetachedSign: cmdname="--detach-sign"; break; case aSym: cmdname="--symmetric"; break; case aEncrSym: cmdname="--symmetric --encrypt"; break; case aStore: cmdname="--store"; break; default: cmdname=NULL; break; } if(cmdname) log_error(_("%s does not yet work with %s\n"),cmdname,"--multifile"); } if( log_get_errorcount(0) ) { write_status_failure ("option-postprocessing", gpg_error(GPG_ERR_GENERAL)); g10_exit (2); } if(opt.compress_level==0) opt.compress_algo=COMPRESS_ALGO_NONE; /* Check our chosen algorithms against the list of legal algorithms. */ if(!GNUPG && !opt.flags.rfc4880bis) { const char *badalg=NULL; preftype_t badtype=PREFTYPE_NONE; if(opt.def_cipher_algo && !algo_available(PREFTYPE_SYM,opt.def_cipher_algo,NULL)) { badalg = openpgp_cipher_algo_name (opt.def_cipher_algo); badtype = PREFTYPE_SYM; } else if(opt.def_aead_algo && !algo_available(PREFTYPE_AEAD, opt.def_aead_algo, NULL)) { badalg = openpgp_aead_algo_name (opt.def_aead_algo); badtype = PREFTYPE_AEAD; } else if(opt.def_digest_algo && !algo_available(PREFTYPE_HASH,opt.def_digest_algo,NULL)) { badalg = gcry_md_algo_name (opt.def_digest_algo); badtype = PREFTYPE_HASH; } else if(opt.cert_digest_algo && !algo_available(PREFTYPE_HASH,opt.cert_digest_algo,NULL)) { badalg = gcry_md_algo_name (opt.cert_digest_algo); badtype = PREFTYPE_HASH; } else if(opt.compress_algo!=-1 && !algo_available(PREFTYPE_ZIP,opt.compress_algo,NULL)) { badalg = compress_algo_to_string(opt.compress_algo); badtype = PREFTYPE_ZIP; } if(badalg) { switch(badtype) { case PREFTYPE_SYM: log_info (_("cipher algorithm '%s'" " may not be used in %s mode\n"), badalg, gnupg_compliance_option_string (opt.compliance)); break; case PREFTYPE_AEAD: log_info (_("AEAD algorithm '%s'" " may not be used in %s mode\n"), badalg, gnupg_compliance_option_string (opt.compliance)); break; case PREFTYPE_HASH: log_info (_("digest algorithm '%s'" " may not be used in %s mode\n"), badalg, gnupg_compliance_option_string (opt.compliance)); break; case PREFTYPE_ZIP: log_info (_("compression algorithm '%s'" " may not be used in %s mode\n"), badalg, gnupg_compliance_option_string (opt.compliance)); break; default: BUG(); } compliance_failure(); } } /* Check our chosen algorithms against the list of allowed * algorithms in the current compliance mode, and fail hard if it * is not. This is us being nice to the user informing her early * that the chosen algorithms are not available. We also check * and enforce this right before the actual operation. */ /* FIXME: We also need to check the AEAD algo. */ if (opt.def_cipher_algo && ! gnupg_cipher_is_allowed (opt.compliance, cmd == aEncr || cmd == aSignEncr || cmd == aEncrSym || cmd == aSym || cmd == aSignSym || cmd == aSignEncrSym, opt.def_cipher_algo, GCRY_CIPHER_MODE_NONE)) log_error (_("cipher algorithm '%s' may not be used in %s mode\n"), openpgp_cipher_algo_name (opt.def_cipher_algo), gnupg_compliance_option_string (opt.compliance)); if (opt.def_digest_algo && ! gnupg_digest_is_allowed (opt.compliance, cmd == aSign || cmd == aSignEncr || cmd == aSignEncrSym || cmd == aSignSym || cmd == aClearsign, opt.def_digest_algo)) log_error (_("digest algorithm '%s' may not be used in %s mode\n"), gcry_md_algo_name (opt.def_digest_algo), gnupg_compliance_option_string (opt.compliance)); /* Fail hard. */ if (log_get_errorcount (0)) { write_status_failure ("option-checking", gpg_error(GPG_ERR_GENERAL)); g10_exit (2); } /* Set the random seed file. */ if (use_random_seed) { char *p = make_filename (gnupg_homedir (), "random_seed", NULL ); gcry_control (GCRYCTL_SET_RANDOM_SEED_FILE, p); if (!gnupg_access (p, F_OK)) register_secured_file (p); xfree(p); } /* If there is no command but the --fingerprint is given, default to the --list-keys command. */ if (!cmd && fpr_maybe_cmd) { set_cmd (&cmd, aListKeys); } if( opt.verbose > 1 ) set_packet_list_mode(1); /* Add the keyrings, but not for some special commands. We always * need to add the keyrings if we are running under SELinux, this * is so that the rings are added to the list of secured files. * We do not add any keyring if --no-keyring or --use-keyboxd has * been used. */ if (!opt.use_keyboxd && default_keyring >= 0 && (ALWAYS_ADD_KEYRINGS || (cmd != aDeArmor && cmd != aEnArmor && cmd != aGPGConfTest))) { if (!nrings || default_keyring > 0) /* Add default ring. */ keydb_add_resource ("pubring" EXTSEP_S GPGEXT_GPG, KEYDB_RESOURCE_FLAG_DEFAULT); for (sl = nrings; sl; sl = sl->next ) keydb_add_resource (sl->d, sl->flags); } FREE_STRLIST(nrings); /* In loopback mode, never ask for the password multiple times. */ if (opt.pinentry_mode == PINENTRY_MODE_LOOPBACK) { opt.passphrase_repeat = 0; } /* If no pinentry is expected shunt * gnupg_allow_set_foregound_window to avoid useless error * messages on Windows. */ if (opt.pinentry_mode != PINENTRY_MODE_ASK) { gnupg_inhibit_set_foregound_window (1); } if (cmd == aGPGConfTest) g10_exit(0); if (pwfd != -1) /* Read the passphrase now. */ read_passphrase_from_fd (pwfd); if (ovrseskeyfd != -1 ) /* Read the sessionkey now. */ read_sessionkey_from_fd (ovrseskeyfd); fname = argc? *argv : NULL; if(fname && utf8_strings) opt.flags.utf8_filename=1; ctrl = xcalloc (1, sizeof *ctrl); gpg_init_default_ctrl (ctrl); #ifndef NO_TRUST_MODELS switch (cmd) { case aPrimegen: case aPrintMD: case aPrintMDs: case aGenRandom: case aDeArmor: case aEnArmor: case aListConfig: case aListGcryptConfig: break; case aFixTrustDB: case aExportOwnerTrust: rc = setup_trustdb (0, trustdb_name); break; case aListTrustDB: rc = setup_trustdb (argc? 1:0, trustdb_name); break; case aKeygen: case aFullKeygen: case aQuickKeygen: rc = setup_trustdb (1, trustdb_name); break; default: /* If we are using TM_ALWAYS, we do not need to create the trustdb. */ rc = setup_trustdb (opt.trust_model != TM_ALWAYS, trustdb_name); break; } if (rc) log_error (_("failed to initialize the TrustDB: %s\n"), gpg_strerror (rc)); #endif /*!NO_TRUST_MODELS*/ switch (cmd) { case aStore: case aSym: case aSign: case aSignSym: case aClearsign: if (!opt.quiet && any_explicit_recipient) log_info (_("WARNING: recipients (-r) given " "without using public key encryption\n")); break; default: break; } /* Check for certain command whether we need to migrate a secring.gpg to the gpg-agent. */ switch (cmd) { case aListSecretKeys: case aSign: case aSignEncr: case aSignEncrSym: case aSignSym: case aClearsign: case aDecrypt: case aSignKey: case aLSignKey: case aEditKey: case aPasswd: case aDeleteSecretKeys: case aDeleteSecretAndPublicKeys: case aQuickKeygen: case aQuickAddUid: case aQuickAddKey: case aQuickRevUid: case aQuickSetPrimaryUid: case aFullKeygen: case aKeygen: case aImport: case aExportSecret: case aExportSecretSub: case aGenRevoke: case aDesigRevoke: case aCardEdit: case aChangePIN: migrate_secring (ctrl); break; case aListKeys: if (opt.with_secret) migrate_secring (ctrl); break; default: break; } /* The command dispatcher. */ switch( cmd ) { case aServer: gpg_server (ctrl); break; case aStore: /* only store the file */ if( argc > 1 ) wrong_args("--store [filename]"); if( (rc = encrypt_store(fname)) ) { write_status_failure ("store", rc); log_error ("storing '%s' failed: %s\n", print_fname_stdin(fname),gpg_strerror (rc) ); } break; case aSym: /* encrypt the given file only with the symmetric cipher */ if( argc > 1 ) wrong_args("--symmetric [filename]"); if( (rc = encrypt_symmetric(fname)) ) { write_status_failure ("symencrypt", rc); log_error (_("symmetric encryption of '%s' failed: %s\n"), print_fname_stdin(fname),gpg_strerror (rc) ); } break; case aEncr: /* encrypt the given file */ if(multifile) encrypt_crypt_files (ctrl, argc, argv, remusr); else { if( argc > 1 ) wrong_args("--encrypt [filename]"); if( (rc = encrypt_crypt (ctrl, -1, fname, remusr, 0, NULL, -1)) ) { write_status_failure ("encrypt", rc); log_error("%s: encryption failed: %s\n", print_fname_stdin(fname), gpg_strerror (rc) ); } } break; case aEncrSym: /* This works with PGP 8 in the sense that it acts just like a symmetric message. It doesn't work at all with 2 or 6. It might work with 7, but alas, I don't have a copy to test with right now. */ if( argc > 1 ) wrong_args("--symmetric --encrypt [filename]"); else if(opt.s2k_mode==0) log_error(_("you cannot use --symmetric --encrypt" " with --s2k-mode 0\n")); else if (PGP7) log_error(_("you cannot use --symmetric --encrypt" " in %s mode\n"), gnupg_compliance_option_string (opt.compliance)); else { if( (rc = encrypt_crypt (ctrl, -1, fname, remusr, 1, NULL, -1)) ) { write_status_failure ("encrypt", rc); log_error ("%s: encryption failed: %s\n", print_fname_stdin(fname), gpg_strerror (rc) ); } } break; case aSign: /* sign the given file */ sl = NULL; if( detached_sig ) { /* sign all files */ for( ; argc; argc--, argv++ ) add_to_strlist( &sl, *argv ); } else { if( argc > 1 ) wrong_args("--sign [filename]"); if( argc ) { sl = xmalloc_clear( sizeof *sl + strlen(fname)); strcpy(sl->d, fname); } } if ((rc = sign_file (ctrl, sl, detached_sig, locusr, 0, NULL, NULL))) { write_status_failure ("sign", rc); log_error ("signing failed: %s\n", gpg_strerror (rc) ); } free_strlist(sl); break; case aSignEncr: /* sign and encrypt the given file */ if( argc > 1 ) wrong_args("--sign --encrypt [filename]"); if( argc ) { sl = xmalloc_clear( sizeof *sl + strlen(fname)); strcpy(sl->d, fname); } else sl = NULL; if ((rc = sign_file (ctrl, sl, detached_sig, locusr, 1, remusr, NULL))) { write_status_failure ("sign-encrypt", rc); log_error("%s: sign+encrypt failed: %s\n", print_fname_stdin(fname), gpg_strerror (rc) ); } free_strlist(sl); break; case aSignEncrSym: /* sign and encrypt the given file */ if( argc > 1 ) wrong_args("--symmetric --sign --encrypt [filename]"); else if(opt.s2k_mode==0) log_error(_("you cannot use --symmetric --sign --encrypt" " with --s2k-mode 0\n")); else if (PGP7) log_error(_("you cannot use --symmetric --sign --encrypt" " in %s mode\n"), gnupg_compliance_option_string (opt.compliance)); else { if( argc ) { sl = xmalloc_clear( sizeof *sl + strlen(fname)); strcpy(sl->d, fname); } else sl = NULL; if ((rc = sign_file (ctrl, sl, detached_sig, locusr, 2, remusr, NULL))) { write_status_failure ("sign-encrypt", rc); log_error("%s: symmetric+sign+encrypt failed: %s\n", print_fname_stdin(fname), gpg_strerror (rc) ); } free_strlist(sl); } break; case aSignSym: /* sign and conventionally encrypt the given file */ if (argc > 1) wrong_args("--sign --symmetric [filename]"); rc = sign_symencrypt_file (ctrl, fname, locusr); if (rc) { write_status_failure ("sign-symencrypt", rc); log_error("%s: sign+symmetric failed: %s\n", print_fname_stdin(fname), gpg_strerror (rc) ); } break; case aClearsign: /* make a clearsig */ if( argc > 1 ) wrong_args("--clear-sign [filename]"); if( (rc = clearsign_file (ctrl, fname, locusr, NULL)) ) { write_status_failure ("sign", rc); log_error("%s: clear-sign failed: %s\n", print_fname_stdin(fname), gpg_strerror (rc) ); } break; case aVerify: if (multifile) { if ((rc = verify_files (ctrl, argc, argv))) log_error("verify files failed: %s\n", gpg_strerror (rc) ); } else { if ((rc = verify_signatures (ctrl, argc, argv))) log_error("verify signatures failed: %s\n", gpg_strerror (rc) ); } if (rc) write_status_failure ("verify", rc); break; case aDecrypt: if (multifile) decrypt_messages (ctrl, argc, argv); else { if( argc > 1 ) wrong_args("--decrypt [filename]"); if( (rc = decrypt_message (ctrl, fname) )) { write_status_failure ("decrypt", rc); log_error("decrypt_message failed: %s\n", gpg_strerror (rc) ); } } break; case aQuickSignKey: case aQuickLSignKey: { const char *fpr; if (argc < 1) wrong_args ("--quick-[l]sign-key fingerprint [userids]"); fpr = *argv++; argc--; sl = NULL; for( ; argc; argc--, argv++) append_to_strlist2 (&sl, *argv, utf8_strings); keyedit_quick_sign (ctrl, fpr, sl, locusr, (cmd == aQuickLSignKey)); free_strlist (sl); } break; case aSignKey: if( argc != 1 ) wrong_args("--sign-key user-id"); /* fall through */ case aLSignKey: if( argc != 1 ) wrong_args("--lsign-key user-id"); /* fall through */ sl=NULL; if(cmd==aSignKey) append_to_strlist(&sl,"sign"); else if(cmd==aLSignKey) append_to_strlist(&sl,"lsign"); else BUG(); append_to_strlist( &sl, "save" ); username = make_username( fname ); keyedit_menu (ctrl, username, locusr, sl, 0, 0 ); xfree(username); free_strlist(sl); break; case aEditKey: /* Edit a key signature */ if( !argc ) wrong_args("--edit-key user-id [commands]"); username = make_username( fname ); if( argc > 1 ) { sl = NULL; for( argc--, argv++ ; argc; argc--, argv++ ) append_to_strlist( &sl, *argv ); keyedit_menu (ctrl, username, locusr, sl, 0, 1 ); free_strlist(sl); } else keyedit_menu (ctrl, username, locusr, NULL, 0, 1 ); xfree(username); break; case aPasswd: if (argc != 1) wrong_args("--change-passphrase "); else { username = make_username (fname); keyedit_passwd (ctrl, username); xfree (username); } break; case aDeleteKeys: case aDeleteSecretKeys: case aDeleteSecretAndPublicKeys: sl = NULL; /* Print a note if the user did not specify any key. */ if (!argc && !opt.quiet) log_info (_("Note: %s\n"), gpg_strerror (GPG_ERR_NO_KEY)); /* I'm adding these in reverse order as add_to_strlist2 reverses them again, and it's easier to understand in the proper order :) */ for( ; argc; argc-- ) add_to_strlist2( &sl, argv[argc-1], utf8_strings ); delete_keys (ctrl, sl, cmd==aDeleteSecretKeys, cmd==aDeleteSecretAndPublicKeys); free_strlist(sl); break; case aCheckKeys: opt.check_sigs = 1; /* fall through */ case aListSigs: opt.list_sigs = 1; /* fall through */ case aListKeys: sl = NULL; for( ; argc; argc--, argv++ ) add_to_strlist2( &sl, *argv, utf8_strings ); public_key_list (ctrl, sl, 0, 0); free_strlist(sl); break; case aListSecretKeys: sl = NULL; for( ; argc; argc--, argv++ ) add_to_strlist2( &sl, *argv, utf8_strings ); secret_key_list (ctrl, sl); free_strlist(sl); break; case aLocateKeys: case aLocateExtKeys: sl = NULL; for (; argc; argc--, argv++) add_to_strlist2( &sl, *argv, utf8_strings ); if (cmd == aLocateExtKeys && akl_empty_or_only_local ()) { /* This is a kludge to let --locate-external-keys even * work if the config file has --no-auto-key-locate. This * better matches the expectations of the user. */ release_akl (); parse_auto_key_locate (DEFAULT_AKL_LIST); } public_key_list (ctrl, sl, 1, cmd == aLocateExtKeys); free_strlist (sl); break; case aQuickKeygen: { const char *x_algo, *x_usage, *x_expire; if (argc < 1 || argc > 4) wrong_args("--quick-generate-key USER-ID [ALGO [USAGE [EXPIRE]]]"); username = make_username (fname); argv++, argc--; x_algo = ""; x_usage = ""; x_expire = ""; if (argc) { x_algo = *argv++; argc--; if (argc) { x_usage = *argv++; argc--; if (argc) { x_expire = *argv++; argc--; } } } quick_generate_keypair (ctrl, username, x_algo, x_usage, x_expire); xfree (username); } break; case aKeygen: /* generate a key */ if( opt.batch ) { if( argc > 1 ) wrong_args("--generate-key [parameterfile]"); generate_keypair (ctrl, 0, argc? *argv : NULL, NULL, 0); } else { if (opt.command_fd != -1 && argc) { if( argc > 1 ) wrong_args("--generate-key [parameterfile]"); opt.batch = 1; generate_keypair (ctrl, 0, argc? *argv : NULL, NULL, 0); } else if (argc) wrong_args ("--generate-key"); else generate_keypair (ctrl, 0, NULL, NULL, 0); } break; case aFullKeygen: /* Generate a key with all options. */ if (opt.batch) { if (argc > 1) wrong_args ("--full-generate-key [parameterfile]"); generate_keypair (ctrl, 1, argc? *argv : NULL, NULL, 0); } else { if (argc) wrong_args("--full-generate-key"); generate_keypair (ctrl, 1, NULL, NULL, 0); } break; case aQuickAddUid: { const char *uid, *newuid; if (argc != 2) wrong_args ("--quick-add-uid USER-ID NEW-USER-ID"); uid = *argv++; argc--; newuid = *argv++; argc--; keyedit_quick_adduid (ctrl, uid, newuid); } break; case aQuickAddKey: { const char *x_fpr, *x_algo, *x_usage, *x_expire; if (argc < 1 || argc > 4) wrong_args ("--quick-add-key FINGERPRINT [ALGO [USAGE [EXPIRE]]]"); x_fpr = *argv++; argc--; x_algo = ""; x_usage = ""; x_expire = ""; if (argc) { x_algo = *argv++; argc--; if (argc) { x_usage = *argv++; argc--; if (argc) { x_expire = *argv++; argc--; } } } keyedit_quick_addkey (ctrl, x_fpr, x_algo, x_usage, x_expire); } break; case aQuickRevUid: { const char *uid, *uidtorev; if (argc != 2) wrong_args ("--quick-revoke-uid USER-ID USER-ID-TO-REVOKE"); uid = *argv++; argc--; uidtorev = *argv++; argc--; keyedit_quick_revuid (ctrl, uid, uidtorev); } break; case aQuickSetExpire: { const char *x_fpr, *x_expire; if (argc < 2) wrong_args ("--quick-set-exipre FINGERPRINT EXPIRE [SUBKEY-FPRS]"); x_fpr = *argv++; argc--; x_expire = *argv++; argc--; keyedit_quick_set_expire (ctrl, x_fpr, x_expire, argv); } break; case aQuickSetPrimaryUid: { const char *uid, *primaryuid; if (argc != 2) wrong_args ("--quick-set-primary-uid USER-ID PRIMARY-USER-ID"); uid = *argv++; argc--; primaryuid = *argv++; argc--; keyedit_quick_set_primary (ctrl, uid, primaryuid); } break; case aFastImport: opt.import_options |= IMPORT_FAST; /* fall through */ case aImport: case aShowKeys: import_keys (ctrl, argc? argv:NULL, argc, NULL, opt.import_options, opt.key_origin, opt.key_origin_url); break; /* TODO: There are a number of command that use this same "make strlist, call function, report error, free strlist" pattern. Join them together here and avoid all that duplicated code. */ case aExport: case aSendKeys: case aRecvKeys: sl = NULL; for( ; argc; argc--, argv++ ) append_to_strlist2( &sl, *argv, utf8_strings ); if( cmd == aSendKeys ) rc = keyserver_export (ctrl, sl ); else if( cmd == aRecvKeys ) rc = keyserver_import (ctrl, sl ); else { export_stats_t stats = export_new_stats (); rc = export_pubkeys (ctrl, sl, opt.export_options, stats); export_print_stats (stats); export_release_stats (stats); } if(rc) { if(cmd==aSendKeys) { write_status_failure ("send-keys", rc); log_error(_("keyserver send failed: %s\n"),gpg_strerror (rc)); } else if(cmd==aRecvKeys) { write_status_failure ("recv-keys", rc); log_error (_("keyserver receive failed: %s\n"), gpg_strerror (rc)); } else { write_status_failure ("export", rc); log_error (_("key export failed: %s\n"), gpg_strerror (rc)); } } free_strlist(sl); break; case aExportSshKey: if (argc != 1) wrong_args ("--export-ssh-key "); rc = export_ssh_key (ctrl, argv[0]); if (rc) { write_status_failure ("export-ssh-key", rc); log_error (_("export as ssh key failed: %s\n"), gpg_strerror (rc)); } break; case aSearchKeys: sl = NULL; for (; argc; argc--, argv++) append_to_strlist2 (&sl, *argv, utf8_strings); rc = keyserver_search (ctrl, sl); if (rc) { write_status_failure ("search-keys", rc); log_error (_("keyserver search failed: %s\n"), gpg_strerror (rc)); } free_strlist (sl); break; case aRefreshKeys: sl = NULL; for( ; argc; argc--, argv++ ) append_to_strlist2( &sl, *argv, utf8_strings ); rc = keyserver_refresh (ctrl, sl); if(rc) { write_status_failure ("refresh-keys", rc); log_error (_("keyserver refresh failed: %s\n"),gpg_strerror (rc)); } free_strlist(sl); break; case aFetchKeys: sl = NULL; for( ; argc; argc--, argv++ ) append_to_strlist2( &sl, *argv, utf8_strings ); rc = keyserver_fetch (ctrl, sl, opt.key_origin); if(rc) { write_status_failure ("fetch-keys", rc); log_error ("key fetch failed: %s\n",gpg_strerror (rc)); } free_strlist(sl); break; case aExportSecret: sl = NULL; for( ; argc; argc--, argv++ ) add_to_strlist2( &sl, *argv, utf8_strings ); { export_stats_t stats = export_new_stats (); export_seckeys (ctrl, sl, opt.export_options, stats); export_print_stats (stats); export_release_stats (stats); } free_strlist(sl); break; case aExportSecretSub: sl = NULL; for( ; argc; argc--, argv++ ) add_to_strlist2( &sl, *argv, utf8_strings ); { export_stats_t stats = export_new_stats (); export_secsubkeys (ctrl, sl, opt.export_options, stats); export_print_stats (stats); export_release_stats (stats); } free_strlist(sl); break; case aGenRevoke: if( argc != 1 ) wrong_args("--generate-revocation user-id"); username = make_username(*argv); gen_revoke (ctrl, username ); xfree( username ); break; case aDesigRevoke: if (argc != 1) wrong_args ("--generate-designated-revocation user-id"); username = make_username (*argv); gen_desig_revoke (ctrl, username, locusr); xfree (username); break; case aDeArmor: if( argc > 1 ) wrong_args("--dearmor [file]"); rc = dearmor_file( argc? *argv: NULL ); if( rc ) { write_status_failure ("dearmor", rc); log_error (_("dearmoring failed: %s\n"), gpg_strerror (rc)); } break; case aEnArmor: if( argc > 1 ) wrong_args("--enarmor [file]"); rc = enarmor_file( argc? *argv: NULL ); if( rc ) { write_status_failure ("enarmor", rc); log_error (_("enarmoring failed: %s\n"), gpg_strerror (rc)); } break; case aPrimegen: #if 0 /*FIXME*/ { int mode = argc < 2 ? 0 : atoi(*argv); if( mode == 1 && argc == 2 ) { mpi_print (es_stdout, generate_public_prime( atoi(argv[1]) ), 1); } else if( mode == 2 && argc == 3 ) { mpi_print (es_stdout, generate_elg_prime( 0, atoi(argv[1]), atoi(argv[2]), NULL,NULL ), 1); } else if( mode == 3 && argc == 3 ) { MPI *factors; mpi_print (es_stdout, generate_elg_prime( 1, atoi(argv[1]), atoi(argv[2]), NULL,&factors ), 1); es_putc ('\n', es_stdout); mpi_print (es_stdout, factors[0], 1 ); /* print q */ } else if( mode == 4 && argc == 3 ) { MPI g = mpi_alloc(1); mpi_print (es_stdout, generate_elg_prime( 0, atoi(argv[1]), atoi(argv[2]), g, NULL ), 1); es_putc ('\n', es_stdout); mpi_print (es_stdout, g, 1 ); mpi_free (g); } else wrong_args("--gen-prime mode bits [qbits] "); es_putc ('\n', es_stdout); } #endif wrong_args("--gen-prime not yet supported "); break; case aGenRandom: { int level = argc ? atoi(*argv):0; int count = argc > 1 ? atoi(argv[1]): 0; int endless = !count; int hexhack = (level == 16); if (hexhack) level = 1; if (argc < 1 || argc > 2 || level < 0 || level > 2 || count < 0) wrong_args ("--gen-random 0|1|2 [count]"); while (endless || count) { byte *p; /* We need a multiple of 3, so that in case of armored * output we get a correct string. No linefolding is * done, as it is best to leave this to other tools */ size_t n = !endless && count < 99? count : 99; size_t nn; p = gcry_random_bytes (n, level); #ifdef HAVE_DOSISH_SYSTEM setmode ( fileno(stdout), O_BINARY ); #endif if (hexhack) { for (nn = 0; nn < n; nn++) es_fprintf (es_stdout, "%02x", p[nn]); } else if (opt.armor) { char *tmp = make_radix64_string (p, n); es_fputs (tmp, es_stdout); xfree (tmp); if (n%3 == 1) es_putc ('=', es_stdout); if (n%3) es_putc ('=', es_stdout); } else { es_fwrite( p, n, 1, es_stdout ); } xfree(p); if (!endless) count -= n; } if (opt.armor || hexhack) es_putc ('\n', es_stdout); } break; case aPrintMD: if( argc < 1) wrong_args("--print-md algo [files]"); { int all_algos = (**argv=='*' && !(*argv)[1]); int algo = all_algos? 0 : gcry_md_map_name (*argv); if( !algo && !all_algos ) log_error(_("invalid hash algorithm '%s'\n"), *argv ); else { argc--; argv++; if( !argc ) print_mds(NULL, algo); else { for(; argc; argc--, argv++ ) print_mds(*argv, algo); } } } break; case aPrintMDs: /* old option */ if( !argc ) print_mds(NULL,0); else { for(; argc; argc--, argv++ ) print_mds(*argv,0); } break; #ifndef NO_TRUST_MODELS case aListTrustDB: if( !argc ) list_trustdb (ctrl, es_stdout, NULL); else { for( ; argc; argc--, argv++ ) list_trustdb (ctrl, es_stdout, *argv ); } break; case aUpdateTrustDB: if( argc ) wrong_args("--update-trustdb"); update_trustdb (ctrl); break; case aCheckTrustDB: /* Old versions allowed for arguments - ignore them */ check_trustdb (ctrl); break; case aFixTrustDB: how_to_fix_the_trustdb (); break; case aListTrustPath: if( !argc ) wrong_args("--list-trust-path "); for( ; argc; argc--, argv++ ) { username = make_username( *argv ); list_trust_path( username ); xfree(username); } break; case aExportOwnerTrust: if( argc ) wrong_args("--export-ownertrust"); export_ownertrust (ctrl); break; case aImportOwnerTrust: if( argc > 1 ) wrong_args("--import-ownertrust [file]"); import_ownertrust (ctrl, argc? *argv:NULL ); break; #endif /*!NO_TRUST_MODELS*/ case aRebuildKeydbCaches: if (argc) wrong_args ("--rebuild-keydb-caches"); keydb_rebuild_caches (ctrl, 1); break; #ifdef ENABLE_CARD_SUPPORT case aCardStatus: if (argc == 0) card_status (ctrl, es_stdout, NULL); else if (argc == 1) card_status (ctrl, es_stdout, *argv); else wrong_args ("--card-status [serialno]"); break; case aCardEdit: if (argc) { sl = NULL; for (argc--, argv++ ; argc; argc--, argv++) append_to_strlist (&sl, *argv); card_edit (ctrl, sl); free_strlist (sl); } else card_edit (ctrl, NULL); break; case aChangePIN: if (!argc) change_pin (0,1); else if (argc == 1) change_pin (atoi (*argv),1); else wrong_args ("--change-pin [no]"); break; #endif /* ENABLE_CARD_SUPPORT*/ case aListConfig: { char *str=collapse_args(argc,argv); list_config(str); xfree(str); } break; case aListGcryptConfig: /* Fixme: It would be nice to integrate that with --list-config but unfortunately there is no way yet to have libgcrypt print it to an estream for further parsing. */ gcry_control (GCRYCTL_PRINT_CONFIG, stdout); break; case aTOFUPolicy: #ifdef USE_TOFU { int policy; int i; KEYDB_HANDLE hd; if (argc < 2) wrong_args ("--tofu-policy POLICY KEYID [KEYID...]"); policy = parse_tofu_policy (argv[0]); hd = keydb_new (ctrl); if (! hd) { write_status_failure ("tofu-driver", gpg_error(GPG_ERR_GENERAL)); g10_exit (1); } tofu_begin_batch_update (ctrl); for (i = 1; i < argc; i ++) { KEYDB_SEARCH_DESC desc; kbnode_t kb; rc = classify_user_id (argv[i], &desc, 0); if (rc) { log_error (_("error parsing key specification '%s': %s\n"), argv[i], gpg_strerror (rc)); write_status_failure ("tofu-driver", rc); g10_exit (1); } if (! (desc.mode == KEYDB_SEARCH_MODE_SHORT_KID || desc.mode == KEYDB_SEARCH_MODE_LONG_KID || desc.mode == KEYDB_SEARCH_MODE_FPR || desc.mode == KEYDB_SEARCH_MODE_KEYGRIP)) { log_error (_("'%s' does not appear to be a valid" " key ID, fingerprint or keygrip\n"), argv[i]); write_status_failure ("tofu-driver", gpg_error(GPG_ERR_GENERAL)); g10_exit (1); } rc = keydb_search_reset (hd); if (rc) { /* This should not happen, thus no need to tranalate the string. */ log_error ("keydb_search_reset failed: %s\n", gpg_strerror (rc)); write_status_failure ("tofu-driver", rc); g10_exit (1); } rc = keydb_search (hd, &desc, 1, NULL); if (rc) { log_error (_("key \"%s\" not found: %s\n"), argv[i], gpg_strerror (rc)); write_status_failure ("tofu-driver", rc); g10_exit (1); } rc = keydb_get_keyblock (hd, &kb); if (rc) { log_error (_("error reading keyblock: %s\n"), gpg_strerror (rc)); write_status_failure ("tofu-driver", rc); g10_exit (1); } merge_keys_and_selfsig (ctrl, kb); if (tofu_set_policy (ctrl, kb, policy)) { write_status_failure ("tofu-driver", rc); g10_exit (1); } release_kbnode (kb); } tofu_end_batch_update (ctrl); keydb_release (hd); } #endif /*USE_TOFU*/ break; default: if (!opt.quiet) log_info (_("WARNING: no command supplied." " Trying to guess what you mean ...\n")); /*FALLTHRU*/ case aListPackets: if( argc > 1 ) wrong_args("[filename]"); /* Issue some output for the unix newbie */ if (!fname && !opt.outfile && gnupg_isatty (fileno (stdin)) && gnupg_isatty (fileno (stdout)) && gnupg_isatty (fileno (stderr))) log_info(_("Go ahead and type your message ...\n")); a = iobuf_open(fname); if (a && is_secured_file (iobuf_get_fd (a))) { iobuf_close (a); a = NULL; gpg_err_set_errno (EPERM); } if( !a ) log_error(_("can't open '%s'\n"), print_fname_stdin(fname)); else { if( !opt.no_armor ) { if( use_armor_filter( a ) ) { afx = new_armor_context (); push_armor_filter (afx, a); } } if( cmd == aListPackets ) { opt.list_packets=1; set_packet_list_mode(1); } rc = proc_packets (ctrl, NULL, a ); if( rc ) { write_status_failure ("-", rc); log_error ("processing message failed: %s\n", gpg_strerror (rc)); } iobuf_close(a); } break; } /* cleanup */ gpg_deinit_default_ctrl (ctrl); xfree (ctrl); release_armor_context (afx); FREE_STRLIST(remusr); FREE_STRLIST(locusr); g10_exit(0); return 8; /*NEVER REACHED*/ } /* Note: This function is used by signal handlers!. */ static void emergency_cleanup (void) { gcry_control (GCRYCTL_TERM_SECMEM ); } void g10_exit( int rc ) { /* If we had an error but not printed an error message, do it now. * Note that write_status_failure will never print a second failure * status line. */ if (rc) write_status_failure ("gpg-exit", gpg_error (GPG_ERR_GENERAL)); gcry_control (GCRYCTL_UPDATE_RANDOM_SEED_FILE); if (DBG_CLOCK) log_clock ("stop"); if ( (opt.debug & DBG_MEMSTAT_VALUE) ) { keydb_dump_stats (); sig_check_dump_stats (); objcache_dump_stats (); gcry_control (GCRYCTL_DUMP_MEMORY_STATS); gcry_control (GCRYCTL_DUMP_RANDOM_STATS); } if (opt.debug) gcry_control (GCRYCTL_DUMP_SECMEM_STATS ); gnupg_block_all_signals (); emergency_cleanup (); rc = rc? rc : log_get_errorcount(0)? 2 : g10_errors_seen? 1 : 0; exit (rc); } /* Pretty-print hex hashes. This assumes at least an 80-character display, but there are a few other similar assumptions in the display code. */ static void print_hex (gcry_md_hd_t md, int algo, const char *fname) { int i,n,count,indent=0; const byte *p; if (fname) indent = es_printf("%s: ",fname); if (indent>40) { es_printf ("\n"); indent=0; } if (algo==DIGEST_ALGO_RMD160) indent += es_printf("RMD160 = "); else if (algo>0) indent += es_printf("%6s = ", gcry_md_algo_name (algo)); else algo = abs(algo); count = indent; p = gcry_md_read (md, algo); n = gcry_md_get_algo_dlen (algo); count += es_printf ("%02X",*p++); for(i=1;i79) { es_printf ("\n%*s",indent," "); count = indent; } else count += es_printf(" "); if (!(i%8)) count += es_printf(" "); } else if (n==20) { if(!(i%2)) { if(count+4>79) { es_printf ("\n%*s",indent," "); count=indent; } else count += es_printf(" "); } if (!(i%10)) count += es_printf(" "); } else { if(!(i%4)) { if (count+8>79) { es_printf ("\n%*s",indent," "); count=indent; } else count += es_printf(" "); } } count += es_printf("%02X",*p); } es_printf ("\n"); } static void print_hashline( gcry_md_hd_t md, int algo, const char *fname ) { int i, n; const byte *p; if ( fname ) { for (p = fname; *p; p++ ) { if ( *p <= 32 || *p > 127 || *p == ':' || *p == '%' ) es_printf ("%%%02X", *p ); else es_putc (*p, es_stdout); } } es_putc (':', es_stdout); es_printf ("%d:", algo); p = gcry_md_read (md, algo); n = gcry_md_get_algo_dlen (algo); for(i=0; i < n ; i++, p++ ) es_printf ("%02X", *p); es_fputs (":\n", es_stdout); } static void print_mds( const char *fname, int algo ) { estream_t fp; char buf[1024]; size_t n; gcry_md_hd_t md; if (!fname) { fp = es_stdin; es_set_binary (fp); } else { fp = es_fopen (fname, "rb" ); if (fp && is_secured_file (es_fileno (fp))) { es_fclose (fp); fp = NULL; gpg_err_set_errno (EPERM); } } if (!fp) { log_error("%s: %s\n", fname?fname:"[stdin]", strerror(errno) ); return; } gcry_md_open (&md, 0, 0); if (algo) gcry_md_enable (md, algo); else { if (!gcry_md_test_algo (GCRY_MD_MD5)) gcry_md_enable (md, GCRY_MD_MD5); gcry_md_enable (md, GCRY_MD_SHA1); if (!gcry_md_test_algo (GCRY_MD_RMD160)) gcry_md_enable (md, GCRY_MD_RMD160); if (!gcry_md_test_algo (GCRY_MD_SHA224)) gcry_md_enable (md, GCRY_MD_SHA224); if (!gcry_md_test_algo (GCRY_MD_SHA256)) gcry_md_enable (md, GCRY_MD_SHA256); if (!gcry_md_test_algo (GCRY_MD_SHA384)) gcry_md_enable (md, GCRY_MD_SHA384); if (!gcry_md_test_algo (GCRY_MD_SHA512)) gcry_md_enable (md, GCRY_MD_SHA512); } while ((n=es_fread (buf, 1, DIM(buf), fp))) gcry_md_write (md, buf, n); if (es_ferror(fp)) log_error ("%s: %s\n", fname?fname:"[stdin]", strerror(errno)); else { gcry_md_final (md); if (opt.with_colons) { if ( algo ) print_hashline (md, algo, fname); else { if (!gcry_md_test_algo (GCRY_MD_MD5)) print_hashline( md, GCRY_MD_MD5, fname ); print_hashline( md, GCRY_MD_SHA1, fname ); if (!gcry_md_test_algo (GCRY_MD_RMD160)) print_hashline( md, GCRY_MD_RMD160, fname ); if (!gcry_md_test_algo (GCRY_MD_SHA224)) print_hashline (md, GCRY_MD_SHA224, fname); if (!gcry_md_test_algo (GCRY_MD_SHA256)) print_hashline( md, GCRY_MD_SHA256, fname ); if (!gcry_md_test_algo (GCRY_MD_SHA384)) print_hashline ( md, GCRY_MD_SHA384, fname ); if (!gcry_md_test_algo (GCRY_MD_SHA512)) print_hashline ( md, GCRY_MD_SHA512, fname ); } } else { if (algo) print_hex (md, -algo, fname); else { if (!gcry_md_test_algo (GCRY_MD_MD5)) print_hex (md, GCRY_MD_MD5, fname); print_hex (md, GCRY_MD_SHA1, fname ); if (!gcry_md_test_algo (GCRY_MD_RMD160)) print_hex (md, GCRY_MD_RMD160, fname ); if (!gcry_md_test_algo (GCRY_MD_SHA224)) print_hex (md, GCRY_MD_SHA224, fname); if (!gcry_md_test_algo (GCRY_MD_SHA256)) print_hex (md, GCRY_MD_SHA256, fname ); if (!gcry_md_test_algo (GCRY_MD_SHA384)) print_hex (md, GCRY_MD_SHA384, fname ); if (!gcry_md_test_algo (GCRY_MD_SHA512)) print_hex (md, GCRY_MD_SHA512, fname ); } } } gcry_md_close (md); if (fp != es_stdin) es_fclose (fp); } /**************** * Check the supplied name,value string and add it to the notation * data to be used for signatures. which==0 for sig notations, and 1 * for cert notations. */ static void add_notation_data( const char *string, int which ) { struct notation *notation; notation=string_to_notation(string,utf8_strings); if(notation) { if(which) { notation->next=opt.cert_notations; opt.cert_notations=notation; } else { notation->next=opt.sig_notations; opt.sig_notations=notation; } } } static void add_policy_url( const char *string, int which ) { unsigned int i,critical=0; strlist_t sl; if(*string=='!') { string++; critical=1; } for(i=0;iflags |= 1; } static void add_keyserver_url( const char *string, int which ) { unsigned int i,critical=0; strlist_t sl; if(*string=='!') { string++; critical=1; } for(i=0;iflags |= 1; } static void read_sessionkey_from_fd (int fd) { int i, len; char *line; if (! gnupg_fd_valid (fd)) log_fatal ("override-session-key-fd is invalid: %s\n", strerror (errno)); for (line = NULL, i = len = 100; ; i++ ) { if (i >= len-1 ) { char *tmp = line; len += 100; line = xmalloc_secure (len); if (tmp) { memcpy (line, tmp, i); xfree (tmp); } else i=0; } if (read (fd, line + i, 1) != 1 || line[i] == '\n') break; } line[i] = 0; log_debug ("seskey: %s\n", line); gpgrt_annotate_leaked_object (line); opt.override_session_key = line; } diff --git a/g10/tdbio.c b/g10/tdbio.c index fdb90ec53..193f80dc2 100644 --- a/g10/tdbio.c +++ b/g10/tdbio.c @@ -1,1930 +1,1930 @@ /* tdbio.c - trust database I/O operations * Copyright (C) 1998-2002, 2012 Free Software Foundation, Inc. * Copyright (C) 1998-2015 Werner Koch * * This file is part of GnuPG. * * GnuPG is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * GnuPG is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #include #include #include #include #include #include #include #include #include #include "gpg.h" #include "../common/status.h" #include "../common/iobuf.h" #include "../common/util.h" #include "options.h" #include "main.h" #include "../common/i18n.h" #include "trustdb.h" #include "tdbio.h" #if defined(HAVE_DOSISH_SYSTEM) && !defined(ftruncate) #define ftruncate chsize #endif #if defined(HAVE_DOSISH_SYSTEM) || defined(__CYGWIN__) #define MY_O_BINARY O_BINARY #else #define MY_O_BINARY 0 #endif /* We use ERRNO despite that the cegcc provided open/read/write functions don't set ERRNO - at least show that ERRNO does not make sense. */ #ifdef HAVE_W32CE_SYSTEM #undef strerror #define strerror(a) ("[errno not available]") #endif /* * Yes, this is a very simple implementation. We should really * use a page aligned buffer and read complete pages. * To implement a simple trannsaction system, this is sufficient. */ typedef struct cache_ctrl_struct *CACHE_CTRL; struct cache_ctrl_struct { CACHE_CTRL next; struct { unsigned used:1; unsigned dirty:1; } flags; ulong recno; char data[TRUST_RECORD_LEN]; }; /* Size of the cache. The SOFT value is the general one. While in a transaction this may not be sufficient and thus we may increase it then up to the HARD limit. */ #define MAX_CACHE_ENTRIES_SOFT 200 #define MAX_CACHE_ENTRIES_HARD 10000 /* The cache is controlled by these variables. */ static CACHE_CTRL cache_list; static int cache_entries; static int cache_is_dirty; /* An object to pass information to cmp_krec_fpr. */ struct cmp_krec_fpr_struct { int pubkey_algo; const char *fpr; int fprlen; }; /* An object used to pass information to cmp_[s]dir. */ struct cmp_xdir_struct { int pubkey_algo; u32 keyid[2]; }; /* The name of the trustdb file. */ static char *db_name; /* The handle for locking the trustdb file and a counter to record how * often this lock has been taken. That counter is required because * dotlock does not implement recursive locks. */ static dotlock_t lockhandle; static unsigned int is_locked; /* The file descriptor of the trustdb. */ static int db_fd = -1; /* A flag indicating that a transaction is active. */ /* static int in_transaction; Not yet used. */ static void open_db (void); static void create_hashtable (ctrl_t ctrl, TRUSTREC *vr, int type); /* * Take a lock on the trustdb file name. I a lock file can't be * created the function terminates the process. Except for a * different return code the function does nothing if the lock has * already been taken. * * Returns: True if lock already exists, False if the lock has * actually been taken. */ static int take_write_lock (void) { int rc; if (!lockhandle) lockhandle = dotlock_create (db_name, 0); if (!lockhandle) log_fatal ( _("can't create lock for '%s'\n"), db_name ); if (!is_locked) { if (dotlock_take (lockhandle, -1) ) log_fatal ( _("can't lock '%s'\n"), db_name ); rc = 0; } else rc = 1; if (opt.lock_once) is_locked = 1; else is_locked++; return rc; } /* * Release a lock from the trustdb file unless the global option * --lock-once has been used. */ static void release_write_lock (void) { if (opt.lock_once) return; /* Don't care; here IS_LOCKED is fixed to 1. */ if (!is_locked) { log_error ("Ooops, tdbio:release_write_lock with no lock held\n"); return; } if (--is_locked) return; if (dotlock_release (lockhandle)) log_error ("Oops, tdbio:release_write_locked failed\n"); } /************************************* ************* record cache ********** *************************************/ /* * Get the data from the record cache and return a pointer into that * cache. Caller should copy the returned data. NULL is returned on * a cache miss. */ static const char * get_record_from_cache (ulong recno) { CACHE_CTRL r; for (r = cache_list; r; r = r->next) { if (r->flags.used && r->recno == recno) return r->data; } return NULL; } /* * Write a cached item back to the trustdb file. * * Returns: 0 on success or an error code. */ static int write_cache_item (CACHE_CTRL r) { gpg_error_t err; int n; if (lseek (db_fd, r->recno * TRUST_RECORD_LEN, SEEK_SET) == -1) { err = gpg_error_from_syserror (); log_error (_("trustdb rec %lu: lseek failed: %s\n"), r->recno, strerror (errno)); return err; } n = write (db_fd, r->data, TRUST_RECORD_LEN); if (n != TRUST_RECORD_LEN) { err = gpg_error_from_syserror (); log_error (_("trustdb rec %lu: write failed (n=%d): %s\n"), r->recno, n, strerror (errno) ); return err; } r->flags.dirty = 0; return 0; } /* * Put data into the cache. This function may flush * some cache entries if the cache is filled up. * * Returns: 0 on success or an error code. */ static int put_record_into_cache (ulong recno, const char *data) { CACHE_CTRL r, unused; int dirty_count = 0; int clean_count = 0; /* See whether we already cached this one. */ for (unused = NULL, r = cache_list; r; r = r->next) { if (!r->flags.used) { if (!unused) unused = r; } else if (r->recno == recno) { if (!r->flags.dirty) { /* Hmmm: should we use a copy and compare? */ if (memcmp (r->data, data, TRUST_RECORD_LEN)) { r->flags.dirty = 1; cache_is_dirty = 1; } } memcpy (r->data, data, TRUST_RECORD_LEN); return 0; } if (r->flags.used) { if (r->flags.dirty) dirty_count++; else clean_count++; } } /* Not in the cache: add a new entry. */ if (unused) { /* Reuse this entry. */ r = unused; r->flags.used = 1; r->recno = recno; memcpy (r->data, data, TRUST_RECORD_LEN); r->flags.dirty = 1; cache_is_dirty = 1; cache_entries++; return 0; } /* See whether we reached the limit. */ if (cache_entries < MAX_CACHE_ENTRIES_SOFT) { /* No: Put into cache. */ r = xmalloc (sizeof *r); r->flags.used = 1; r->recno = recno; memcpy (r->data, data, TRUST_RECORD_LEN); r->flags.dirty = 1; r->next = cache_list; cache_list = r; cache_is_dirty = 1; cache_entries++; return 0; } /* Cache is full: discard some clean entries. */ if (clean_count) { int n; /* We discard a third of the clean entries. */ n = clean_count / 3; if (!n) n = 1; for (unused = NULL, r = cache_list; r; r = r->next) { if (r->flags.used && !r->flags.dirty) { if (!unused) unused = r; r->flags.used = 0; cache_entries--; if (!--n) break; } } /* Now put into the cache. */ log_assert (unused); r = unused; r->flags.used = 1; r->recno = recno; memcpy (r->data, data, TRUST_RECORD_LEN); r->flags.dirty = 1; cache_is_dirty = 1; cache_entries++; return 0; } /* No clean entries: We have to flush some dirty entries. */ #if 0 /* Transactions are not yet used. */ if (in_transaction) { /* But we can't do this while in a transaction. Thus we * increase the cache size instead. */ if (cache_entries < MAX_CACHE_ENTRIES_HARD) { if (opt.debug && !(cache_entries % 100)) log_debug ("increasing tdbio cache size\n"); r = xmalloc (sizeof *r); r->flags.used = 1; r->recno = recno; memcpy (r->data, data, TRUST_RECORD_LEN); r->flags.dirty = 1; r->next = cache_list; cache_list = r; cache_is_dirty = 1; cache_entries++; return 0; } /* Hard limit for the cache size reached. */ log_info (_("trustdb transaction too large\n")); return GPG_ERR_RESOURCE_LIMIT; } #endif if (dirty_count) { int n; /* Discard some dirty entries. */ n = dirty_count / 5; if (!n) n = 1; take_write_lock (); for (unused = NULL, r = cache_list; r; r = r->next) { if (r->flags.used && r->flags.dirty) { int rc; rc = write_cache_item (r); if (rc) return rc; if (!unused) unused = r; r->flags.used = 0; cache_entries--; if (!--n) break; } } release_write_lock (); /* Now put into the cache. */ log_assert (unused); r = unused; r->flags.used = 1; r->recno = recno; memcpy (r->data, data, TRUST_RECORD_LEN); r->flags.dirty = 1; cache_is_dirty = 1; cache_entries++; return 0; } /* We should never reach this. */ BUG(); } /* Return true if the cache is dirty. */ int tdbio_is_dirty() { return cache_is_dirty; } /* * Flush the cache. This cannot be used while in a transaction. */ int tdbio_sync() { CACHE_CTRL r; int did_lock = 0; if( db_fd == -1 ) open_db(); #if 0 /* Transactions are not yet used. */ if( in_transaction ) log_bug("tdbio: syncing while in transaction\n"); #endif if( !cache_is_dirty ) return 0; if (!take_write_lock ()) did_lock = 1; for( r = cache_list; r; r = r->next ) { if( r->flags.used && r->flags.dirty ) { int rc = write_cache_item( r ); if( rc ) return rc; } } cache_is_dirty = 0; if (did_lock) release_write_lock (); return 0; } #if 0 /* Not yet used. */ /* * Simple transactions system: * Everything between begin_transaction and end/cancel_transaction * is not immediately written but at the time of end_transaction. * * NOTE: The transaction code is disabled in the 1.2 branch, as it is * not yet used. */ int tdbio_begin_transaction () /* Not yet used. */ { int rc; if (in_transaction) log_bug ("tdbio: nested transactions\n"); /* Flush everything out. */ rc = tdbio_sync(); if (rc) return rc; in_transaction = 1; return 0; } int tdbio_end_transaction () /* Not yet used. */ { int rc; if (!in_transaction) log_bug ("tdbio: no active transaction\n"); take_write_lock (); gnupg_block_all_signals (); in_transaction = 0; rc = tdbio_sync(); gnupg_unblock_all_signals(); release_write_lock (); return rc; } int tdbio_cancel_transaction () /* Not yet used. */ { CACHE_CTRL r; if (!in_transaction) log_bug ("tdbio: no active transaction\n"); /* Remove all dirty marked entries, so that the original ones are * read back the next time. */ if (cache_is_dirty) { for (r = cache_list; r; r = r->next) { if (r->flags.used && r->flags.dirty) { r->flags.used = 0; cache_entries--; } } cache_is_dirty = 0; } in_transaction = 0; return 0; } #endif /* Not yet used. */ /******************************************************** **************** cached I/O functions ****************** ********************************************************/ /* The cleanup handler for this module. */ static void cleanup (void) { if (is_locked) { if (!dotlock_release (lockhandle)) is_locked = 0; } } /* * Update an existing trustdb record. The caller must call * tdbio_sync. * * Returns: 0 on success or an error code. */ int tdbio_update_version_record (ctrl_t ctrl) { TRUSTREC rec; int rc; int opt_tm; /* Never store a TOFU trust model in the trustdb. Use PGP instead. */ opt_tm = opt.trust_model; if (opt_tm == TM_TOFU || opt_tm == TM_TOFU_PGP) opt_tm = TM_PGP; memset (&rec, 0, sizeof rec); rc = tdbio_read_record (0, &rec, RECTYPE_VER); if (!rc) { rec.r.ver.created = make_timestamp(); rec.r.ver.marginals = opt.marginals_needed; rec.r.ver.completes = opt.completes_needed; rec.r.ver.cert_depth = opt.max_cert_depth; rec.r.ver.trust_model = opt_tm; rec.r.ver.min_cert_level = opt.min_cert_level; rc = tdbio_write_record (ctrl, &rec); } return rc; } /* * Create and write the trustdb version record. * This is called with the writelock active. * Returns: 0 on success or an error code. */ static int create_version_record (ctrl_t ctrl) { TRUSTREC rec; int rc; int opt_tm; /* Never store a TOFU trust model in the trustdb. Use PGP instead. */ opt_tm = opt.trust_model; if (opt_tm == TM_TOFU || opt_tm == TM_TOFU_PGP) opt_tm = TM_PGP; memset (&rec, 0, sizeof rec); rec.r.ver.version = 3; rec.r.ver.created = make_timestamp (); rec.r.ver.marginals = opt.marginals_needed; rec.r.ver.completes = opt.completes_needed; rec.r.ver.cert_depth = opt.max_cert_depth; if (opt_tm == TM_PGP || opt_tm == TM_CLASSIC) rec.r.ver.trust_model = opt_tm; else rec.r.ver.trust_model = TM_PGP; rec.r.ver.min_cert_level = opt.min_cert_level; rec.rectype = RECTYPE_VER; rec.recnum = 0; rc = tdbio_write_record (ctrl, &rec); if (!rc) tdbio_sync (); if (!rc) create_hashtable (ctrl, &rec, 0); return rc; } /* * Set the file name for the trustdb to NEW_DBNAME and if CREATE is * true create that file. If NEW_DBNAME is NULL a default name is * used, if the it does not contain a path component separator ('/') * the global GnuPG home directory is used. * * Returns: 0 on success or an error code. * * On the first call this function registers an atexit handler. * */ int tdbio_set_dbname (ctrl_t ctrl, const char *new_dbname, int create, int *r_nofile) { char *fname, *p; struct stat statbuf; static int initialized = 0; int save_slash; if (!initialized) { atexit (cleanup); initialized = 1; } *r_nofile = 0; if (!new_dbname) { fname = make_filename (gnupg_homedir (), "trustdb" EXTSEP_S GPGEXT_GPG, NULL); } else if (*new_dbname != DIRSEP_C ) { if (strchr (new_dbname, DIRSEP_C)) fname = make_filename (new_dbname, NULL); else fname = make_filename (gnupg_homedir (), new_dbname, NULL); } else { fname = xstrdup (new_dbname); } xfree (db_name); db_name = fname; /* Quick check for (likely) case where there already is a * trustdb.gpg. This check is not required in theory, but it helps * in practice avoiding costly operations of preparing and taking * the lock. */ if (!stat (fname, &statbuf) && statbuf.st_size > 0) { /* OK, we have the valid trustdb.gpg already. */ return 0; } else if (!create) { *r_nofile = 1; return 0; } /* Here comes: No valid trustdb.gpg AND CREATE==1 */ /* * Make sure the directory exists. This should be done before * acquiring the lock, which assumes the existence of the directory. */ p = strrchr (fname, DIRSEP_C); #if HAVE_W32_SYSTEM { /* Windows may either have a slash or a backslash. Take care of it. */ char *pp = strrchr (fname, '/'); if (!p || pp > p) p = pp; } #endif /*HAVE_W32_SYSTEM*/ log_assert (p); save_slash = *p; *p = 0; if (gnupg_access (fname, F_OK)) { try_make_homedir (fname); if (gnupg_access (fname, F_OK)) log_fatal (_("%s: directory does not exist!\n"), fname); } *p = save_slash; take_write_lock (); if (gnupg_access (fname, R_OK) || stat (fname, &statbuf) || statbuf.st_size == 0) { estream_t fp; TRUSTREC rec; int rc; mode_t oldmask; #ifdef HAVE_W32CE_SYSTEM /* We know how the cegcc implementation of access works ;-). */ if (GetLastError () == ERROR_FILE_NOT_FOUND) gpg_err_set_errno (ENOENT); else gpg_err_set_errno (EIO); #endif /*HAVE_W32CE_SYSTEM*/ if (errno && errno != ENOENT) log_fatal ( _("can't access '%s': %s\n"), fname, strerror (errno)); oldmask = umask (077); if (is_secured_filename (fname)) { fp = NULL; gpg_err_set_errno (EPERM); } else fp = es_fopen (fname, "wb"); umask(oldmask); if (!fp) log_fatal (_("can't create '%s': %s\n"), fname, strerror (errno)); es_fclose (fp); - db_fd = open (db_name, O_RDWR | MY_O_BINARY); + db_fd = gnupg_open (db_name, O_RDWR | MY_O_BINARY, 0); if (db_fd == -1) log_fatal (_("can't open '%s': %s\n"), db_name, strerror (errno)); rc = create_version_record (ctrl); if (rc) log_fatal (_("%s: failed to create version record: %s"), fname, gpg_strerror (rc)); /* Read again to check that we are okay. */ if (tdbio_read_record (0, &rec, RECTYPE_VER)) log_fatal (_("%s: invalid trustdb created\n"), db_name); if (!opt.quiet) log_info (_("%s: trustdb created\n"), db_name); } release_write_lock (); return 0; } /* * Return the full name of the trustdb. */ const char * tdbio_get_dbname () { return db_name; } /* * Open the trustdb. This may only be called if it has not yet been * opened and after a successful call to tdbio_set_dbname. On return * the trustdb handle (DB_FD) is guaranteed to be open. */ static void open_db () { TRUSTREC rec; log_assert( db_fd == -1 ); #ifdef HAVE_W32CE_SYSTEM { DWORD prevrc = 0; wchar_t *wname = utf8_to_wchar (db_name); if (wname) { db_fd = (int)CreateFile (wname, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL); xfree (wname); } if (db_fd == -1) log_fatal ("can't open '%s': %d, %d\n", db_name, (int)prevrc, (int)GetLastError ()); } #else /*!HAVE_W32CE_SYSTEM*/ - db_fd = open (db_name, O_RDWR | MY_O_BINARY ); + db_fd = gnupg_open (db_name, O_RDWR | MY_O_BINARY, 0); if (db_fd == -1 && (errno == EACCES #ifdef EROFS || errno == EROFS #endif ) ) { /* Take care of read-only trustdbs. */ - db_fd = open (db_name, O_RDONLY | MY_O_BINARY ); + db_fd = gnupg_open (db_name, O_RDONLY | MY_O_BINARY, 0); if (db_fd != -1 && !opt.quiet) log_info (_("Note: trustdb not writable\n")); } if ( db_fd == -1 ) log_fatal( _("can't open '%s': %s\n"), db_name, strerror(errno) ); #endif /*!HAVE_W32CE_SYSTEM*/ register_secured_file (db_name); /* Read the version record. */ if (tdbio_read_record (0, &rec, RECTYPE_VER ) ) log_fatal( _("%s: invalid trustdb\n"), db_name ); } /* * Append a new empty hashtable to the trustdb. TYPE gives the type * of the hash table. The only defined type is 0 for a trust hash. * On return the hashtable has been created, written, the version * record update, and the data flushed to the disk. On a fatal error * the function terminates the process. */ static void create_hashtable (ctrl_t ctrl, TRUSTREC *vr, int type) { TRUSTREC rec; off_t offset; ulong recnum; int i, n, rc; offset = lseek (db_fd, 0, SEEK_END); if (offset == -1) log_fatal ("trustdb: lseek to end failed: %s\n", strerror(errno)); recnum = offset / TRUST_RECORD_LEN; log_assert (recnum); /* This is will never be the first record. */ if (!type) vr->r.ver.trusthashtbl = recnum; /* Now write the records making up the hash table. */ n = (256+ITEMS_PER_HTBL_RECORD-1) / ITEMS_PER_HTBL_RECORD; for (i=0; i < n; i++, recnum++) { memset (&rec, 0, sizeof rec); rec.rectype = RECTYPE_HTBL; rec.recnum = recnum; rc = tdbio_write_record (ctrl, &rec); if (rc) log_fatal (_("%s: failed to create hashtable: %s\n"), db_name, gpg_strerror (rc)); } /* Update the version record and flush. */ rc = tdbio_write_record (ctrl, vr); if (!rc) rc = tdbio_sync (); if (rc) log_fatal (_("%s: error updating version record: %s\n"), db_name, gpg_strerror (rc)); } /* * Check whether open trustdb matches the global trust options given * for this process. On a read problem the process is terminated. * * Return: 1 for yes, 0 for no. */ int tdbio_db_matches_options() { static int yes_no = -1; if (yes_no == -1) { TRUSTREC vr; int rc; int opt_tm, tm; rc = tdbio_read_record (0, &vr, RECTYPE_VER); if( rc ) log_fatal( _("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc) ); /* Consider tofu and pgp the same. */ tm = vr.r.ver.trust_model; if (tm == TM_TOFU || tm == TM_TOFU_PGP) tm = TM_PGP; opt_tm = opt.trust_model; if (opt_tm == TM_TOFU || opt_tm == TM_TOFU_PGP) opt_tm = TM_PGP; yes_no = vr.r.ver.marginals == opt.marginals_needed && vr.r.ver.completes == opt.completes_needed && vr.r.ver.cert_depth == opt.max_cert_depth && tm == opt_tm && vr.r.ver.min_cert_level == opt.min_cert_level; } return yes_no; } /* * Read and return the trust model identifier from the trustdb. On a * read problem the process is terminated. */ byte tdbio_read_model (void) { TRUSTREC vr; int rc; rc = tdbio_read_record (0, &vr, RECTYPE_VER ); if (rc) log_fatal (_("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc) ); return vr.r.ver.trust_model; } /* * Read and return the nextstamp value from the trustdb. On a read * problem the process is terminated. */ ulong tdbio_read_nextcheck () { TRUSTREC vr; int rc; rc = tdbio_read_record (0, &vr, RECTYPE_VER); if (rc) log_fatal (_("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc)); return vr.r.ver.nextcheck; } /* * Write the STAMP nextstamp timestamp to the trustdb. On a read or * write problem the process is terminated. * * Return: True if the stamp actually changed. */ int tdbio_write_nextcheck (ctrl_t ctrl, ulong stamp) { TRUSTREC vr; int rc; rc = tdbio_read_record (0, &vr, RECTYPE_VER); if (rc) log_fatal (_("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc)); if (vr.r.ver.nextcheck == stamp) return 0; vr.r.ver.nextcheck = stamp; rc = tdbio_write_record (ctrl, &vr); if (rc) log_fatal (_("%s: error writing version record: %s\n"), db_name, gpg_strerror (rc)); return 1; } /* * Return the record number of the trusthash table or create one if it * does not yet exist. On a read or write problem the process is * terminated. * * Return: record number */ static ulong get_trusthashrec (ctrl_t ctrl) { static ulong trusthashtbl; /* Record number of the trust hashtable. */ (void)ctrl; if (!trusthashtbl) { TRUSTREC vr; int rc; rc = tdbio_read_record (0, &vr, RECTYPE_VER ); if (rc) log_fatal (_("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc) ); if (!vr.r.ver.trusthashtbl) { /* Oops: the trustdb is corrupt because the hashtable is * always created along with the version record. However, * if something went initially wrong it may happen that * there is just the version record. We try to fix it here. * If we can't do that we return 0 - this is the version * record and thus the actual read will detect the mismatch * and bail out. Note that create_hashtable updates VR. */ take_write_lock (); if (lseek (db_fd, 0, SEEK_END) == TRUST_RECORD_LEN) create_hashtable (ctrl, &vr, 0); release_write_lock (); } trusthashtbl = vr.r.ver.trusthashtbl; } return trusthashtbl; } /* * Update a hashtable in the trustdb. TABLE gives the start of the * table, KEY and KEYLEN are the key, NEWRECNUM is the record number * to insert into the table. * * Return: 0 on success or an error code. */ static int upd_hashtable (ctrl_t ctrl, ulong table, byte *key, int keylen, ulong newrecnum) { TRUSTREC lastrec, rec; ulong hashrec, item; int msb; int level = 0; int rc, i; hashrec = table; next_level: msb = key[level]; hashrec += msb / ITEMS_PER_HTBL_RECORD; rc = tdbio_read_record (hashrec, &rec, RECTYPE_HTBL); if (rc) { log_error ("upd_hashtable: read failed: %s\n", gpg_strerror (rc)); return rc; } item = rec.r.htbl.item[msb % ITEMS_PER_HTBL_RECORD]; if (!item) /* Insert a new item into the hash table. */ { rec.r.htbl.item[msb % ITEMS_PER_HTBL_RECORD] = newrecnum; rc = tdbio_write_record (ctrl, &rec); if (rc) { log_error ("upd_hashtable: write htbl failed: %s\n", gpg_strerror (rc)); return rc; } } else if (item != newrecnum) /* Must do an update. */ { lastrec = rec; rc = tdbio_read_record (item, &rec, 0); if (rc) { log_error ("upd_hashtable: read item failed: %s\n", gpg_strerror (rc)); return rc; } if (rec.rectype == RECTYPE_HTBL) { hashrec = item; level++; if (level >= keylen) { log_error ("hashtable has invalid indirections.\n"); return GPG_ERR_TRUSTDB; } goto next_level; } else if (rec.rectype == RECTYPE_HLST) /* Extend the list. */ { /* Check whether the key is already in this list. */ for (;;) { for (i=0; i < ITEMS_PER_HLST_RECORD; i++) { if (rec.r.hlst.rnum[i] == newrecnum) { return 0; /* Okay, already in the list. */ } } if (rec.r.hlst.next) { rc = tdbio_read_record (rec.r.hlst.next, &rec, RECTYPE_HLST); if (rc) { log_error ("upd_hashtable: read hlst failed: %s\n", gpg_strerror (rc) ); return rc; } } else break; /* key is not in the list */ } /* Find the next free entry and put it in. */ for (;;) { for (i=0; i < ITEMS_PER_HLST_RECORD; i++) { if (!rec.r.hlst.rnum[i]) { /* Empty slot found. */ rec.r.hlst.rnum[i] = newrecnum; rc = tdbio_write_record (ctrl, &rec); if (rc) log_error ("upd_hashtable: write hlst failed: %s\n", gpg_strerror (rc)); return rc; /* Done. */ } } if (rec.r.hlst.next) { /* read the next record of the list. */ rc = tdbio_read_record (rec.r.hlst.next, &rec, RECTYPE_HLST); if (rc) { log_error ("upd_hashtable: read hlst failed: %s\n", gpg_strerror (rc)); return rc; } } else { /* Append a new record to the list. */ rec.r.hlst.next = item = tdbio_new_recnum (ctrl); rc = tdbio_write_record (ctrl, &rec); if (rc) { log_error ("upd_hashtable: write hlst failed: %s\n", gpg_strerror (rc)); return rc; } memset (&rec, 0, sizeof rec); rec.rectype = RECTYPE_HLST; rec.recnum = item; rec.r.hlst.rnum[0] = newrecnum; rc = tdbio_write_record (ctrl, &rec); if (rc) log_error ("upd_hashtable: write ext hlst failed: %s\n", gpg_strerror (rc)); return rc; /* Done. */ } } /* end loop over list slots */ } else if (rec.rectype == RECTYPE_TRUST) /* Insert a list record. */ { if (rec.recnum == newrecnum) { return 0; } item = rec.recnum; /* Save number of key record. */ memset (&rec, 0, sizeof rec); rec.rectype = RECTYPE_HLST; rec.recnum = tdbio_new_recnum (ctrl); rec.r.hlst.rnum[0] = item; /* Old key record */ rec.r.hlst.rnum[1] = newrecnum; /* and new key record */ rc = tdbio_write_record (ctrl, &rec); if (rc) { log_error( "upd_hashtable: write new hlst failed: %s\n", gpg_strerror (rc) ); return rc; } /* Update the hashtable record. */ lastrec.r.htbl.item[msb % ITEMS_PER_HTBL_RECORD] = rec.recnum; rc = tdbio_write_record (ctrl, &lastrec); if (rc) log_error ("upd_hashtable: update htbl failed: %s\n", gpg_strerror (rc)); return rc; /* Ready. */ } else { log_error ("hashtbl %lu: %lu/%d points to an invalid record %lu\n", table, hashrec, (msb % ITEMS_PER_HTBL_RECORD), item); if (opt.verbose > 1) list_trustdb (ctrl, es_stderr, NULL); return GPG_ERR_TRUSTDB; } } return 0; } /* * Drop an entry from a hashtable. TABLE gives the start of the * table, KEY and KEYLEN are the key. * * Return: 0 on success or an error code. */ static int drop_from_hashtable (ctrl_t ctrl, ulong table, byte *key, int keylen, ulong recnum) { TRUSTREC rec; ulong hashrec, item; int msb; int level = 0; int rc, i; hashrec = table; next_level: msb = key[level]; hashrec += msb / ITEMS_PER_HTBL_RECORD; rc = tdbio_read_record (hashrec, &rec, RECTYPE_HTBL ); if (rc) { log_error ("drop_from_hashtable: read failed: %s\n", gpg_strerror (rc)); return rc; } item = rec.r.htbl.item[msb % ITEMS_PER_HTBL_RECORD]; if (!item) return 0; /* Not found - forget about it. */ if (item == recnum) /* Table points direct to the record. */ { rec.r.htbl.item[msb % ITEMS_PER_HTBL_RECORD] = 0; rc = tdbio_write_record (ctrl, &rec); if (rc) log_error ("drop_from_hashtable: write htbl failed: %s\n", gpg_strerror (rc)); return rc; } rc = tdbio_read_record (item, &rec, 0); if (rc) { log_error ("drop_from_hashtable: read item failed: %s\n", gpg_strerror (rc)); return rc; } if (rec.rectype == RECTYPE_HTBL) { hashrec = item; level++; if (level >= keylen) { log_error ("hashtable has invalid indirections.\n"); return GPG_ERR_TRUSTDB; } goto next_level; } if (rec.rectype == RECTYPE_HLST) { for (;;) { for (i=0; i < ITEMS_PER_HLST_RECORD; i++) { if (rec.r.hlst.rnum[i] == recnum) { rec.r.hlst.rnum[i] = 0; /* Mark as free. */ rc = tdbio_write_record (ctrl, &rec); if (rc) log_error("drop_from_hashtable: write htbl failed: %s\n", gpg_strerror (rc)); return rc; } } if (rec.r.hlst.next) { rc = tdbio_read_record (rec.r.hlst.next, &rec, RECTYPE_HLST); if (rc) { log_error ("drop_from_hashtable: read hlst failed: %s\n", gpg_strerror (rc)); return rc; } } else return 0; /* Key not in table. */ } } log_error ("hashtbl %lu: %lu/%d points to wrong record %lu\n", table, hashrec, (msb % ITEMS_PER_HTBL_RECORD), item); return GPG_ERR_TRUSTDB; } /* * Lookup a record via the hashtable TABLE by (KEY,KEYLEN) and return * the result in REC. The return value of CMP() should be True if the * record is the desired one. * * Return: 0 if found, GPG_ERR_NOT_FOUND, or another error code. */ static gpg_error_t lookup_hashtable (ulong table, const byte *key, size_t keylen, int (*cmpfnc)(const void*, const TRUSTREC *), const void *cmpdata, TRUSTREC *rec ) { int rc; ulong hashrec, item; int msb; int level = 0; if (!table) { rc = gpg_error (GPG_ERR_INV_RECORD); log_error("lookup_hashtable failed: %s\n", "request for record 0"); return rc; } hashrec = table; next_level: msb = key[level]; hashrec += msb / ITEMS_PER_HTBL_RECORD; rc = tdbio_read_record (hashrec, rec, RECTYPE_HTBL); if (rc) { log_error("lookup_hashtable failed: %s\n", gpg_strerror (rc) ); return rc; } item = rec->r.htbl.item[msb % ITEMS_PER_HTBL_RECORD]; if (!item) return gpg_error (GPG_ERR_NOT_FOUND); rc = tdbio_read_record (item, rec, 0); if (rc) { log_error( "hashtable read failed: %s\n", gpg_strerror (rc) ); return rc; } if (rec->rectype == RECTYPE_HTBL) { hashrec = item; level++; if (level >= keylen) { log_error ("hashtable has invalid indirections\n"); return GPG_ERR_TRUSTDB; } goto next_level; } else if (rec->rectype == RECTYPE_HLST) { for (;;) { int i; for (i=0; i < ITEMS_PER_HLST_RECORD; i++) { if (rec->r.hlst.rnum[i]) { TRUSTREC tmp; rc = tdbio_read_record (rec->r.hlst.rnum[i], &tmp, 0); if (rc) { log_error ("lookup_hashtable: read item failed: %s\n", gpg_strerror (rc)); return rc; } if ((*cmpfnc)(cmpdata, &tmp)) { *rec = tmp; return 0; } } } if (rec->r.hlst.next) { rc = tdbio_read_record (rec->r.hlst.next, rec, RECTYPE_HLST); if (rc) { log_error ("lookup_hashtable: read hlst failed: %s\n", gpg_strerror (rc) ); return rc; } } else return gpg_error (GPG_ERR_NOT_FOUND); } } if ((*cmpfnc)(cmpdata, rec)) return 0; /* really found */ return gpg_error (GPG_ERR_NOT_FOUND); /* no: not found */ } /* * Update the trust hash table TR or create the table if it does not * exist. * * Return: 0 on success or an error code. */ static int update_trusthashtbl (ctrl_t ctrl, TRUSTREC *tr) { return upd_hashtable (ctrl, get_trusthashrec (ctrl), tr->r.trust.fingerprint, 20, tr->recnum); } /* * Dump the trustdb record REC to stream FP. */ void tdbio_dump_record (TRUSTREC *rec, estream_t fp) { int i; ulong rnum = rec->recnum; es_fprintf (fp, "rec %5lu, ", rnum); switch (rec->rectype) { case 0: es_fprintf (fp, "blank\n"); break; case RECTYPE_VER: es_fprintf (fp, "version, td=%lu, f=%lu, m/c/d=%d/%d/%d tm=%d mcl=%d nc=%lu (%s)\n", rec->r.ver.trusthashtbl, rec->r.ver.firstfree, rec->r.ver.marginals, rec->r.ver.completes, rec->r.ver.cert_depth, rec->r.ver.trust_model, rec->r.ver.min_cert_level, rec->r.ver.nextcheck, strtimestamp(rec->r.ver.nextcheck) ); break; case RECTYPE_FREE: es_fprintf (fp, "free, next=%lu\n", rec->r.free.next); break; case RECTYPE_HTBL: es_fprintf (fp, "htbl,"); for (i=0; i < ITEMS_PER_HTBL_RECORD; i++) es_fprintf (fp, " %lu", rec->r.htbl.item[i]); es_putc ('\n', fp); break; case RECTYPE_HLST: es_fprintf (fp, "hlst, next=%lu,", rec->r.hlst.next); for (i=0; i < ITEMS_PER_HLST_RECORD; i++) es_fprintf (fp, " %lu", rec->r.hlst.rnum[i]); es_putc ('\n', fp); break; case RECTYPE_TRUST: es_fprintf (fp, "trust "); for (i=0; i < 20; i++) es_fprintf (fp, "%02X", rec->r.trust.fingerprint[i]); es_fprintf (fp, ", ot=%d, d=%d, vl=%lu\n", rec->r.trust.ownertrust, rec->r.trust.depth, rec->r.trust.validlist); break; case RECTYPE_VALID: es_fprintf (fp, "valid "); for (i=0; i < 20; i++) es_fprintf(fp, "%02X", rec->r.valid.namehash[i]); es_fprintf (fp, ", v=%d, next=%lu\n", rec->r.valid.validity, rec->r.valid.next); break; default: es_fprintf (fp, "unknown type %d\n", rec->rectype ); break; } } /* * Read the record with number RECNUM into the structure REC. If * EXPECTED is not 0 reading any other record type will return an * error. * * Return: 0 on success or an error code. */ int tdbio_read_record (ulong recnum, TRUSTREC *rec, int expected) { byte readbuf[TRUST_RECORD_LEN]; const byte *buf, *p; gpg_error_t err = 0; int n, i; if (db_fd == -1) open_db (); buf = get_record_from_cache( recnum ); if (!buf) { if (lseek (db_fd, recnum * TRUST_RECORD_LEN, SEEK_SET) == -1) { err = gpg_error_from_syserror (); log_error (_("trustdb: lseek failed: %s\n"), strerror (errno)); return err; } n = read (db_fd, readbuf, TRUST_RECORD_LEN); if (!n) { return gpg_error (GPG_ERR_EOF); } else if (n != TRUST_RECORD_LEN) { err = gpg_error_from_syserror (); log_error (_("trustdb: read failed (n=%d): %s\n"), n, strerror(errno)); return err; } buf = readbuf; } rec->recnum = recnum; rec->dirty = 0; p = buf; rec->rectype = *p++; if (expected && rec->rectype != expected) { log_error ("%lu: read expected rec type %d, got %d\n", recnum, expected, rec->rectype); return gpg_error (GPG_ERR_TRUSTDB); } p++; /* Skip reserved byte. */ switch (rec->rectype) { case 0: /* unused (free) record */ break; case RECTYPE_VER: /* version record */ if (memcmp(buf+1, GPGEXT_GPG, 3)) { log_error (_("%s: not a trustdb file\n"), db_name ); err = gpg_error (GPG_ERR_TRUSTDB); } else { p += 2; /* skip "gpg" */ rec->r.ver.version = *p++; rec->r.ver.marginals = *p++; rec->r.ver.completes = *p++; rec->r.ver.cert_depth = *p++; rec->r.ver.trust_model = *p++; rec->r.ver.min_cert_level = *p++; p += 2; rec->r.ver.created = buf32_to_ulong(p); p += 4; rec->r.ver.nextcheck = buf32_to_ulong(p); p += 4; p += 4; p += 4; rec->r.ver.firstfree = buf32_to_ulong(p); p += 4; p += 4; rec->r.ver.trusthashtbl = buf32_to_ulong(p); if (recnum) { log_error( _("%s: version record with recnum %lu\n"), db_name, (ulong)recnum ); err = gpg_error (GPG_ERR_TRUSTDB); } else if (rec->r.ver.version != 3) { log_error( _("%s: invalid file version %d\n"), db_name, rec->r.ver.version ); err = gpg_error (GPG_ERR_TRUSTDB); } } break; case RECTYPE_FREE: rec->r.free.next = buf32_to_ulong(p); break; case RECTYPE_HTBL: for (i=0; i < ITEMS_PER_HTBL_RECORD; i++) { rec->r.htbl.item[i] = buf32_to_ulong(p); p += 4; } break; case RECTYPE_HLST: rec->r.hlst.next = buf32_to_ulong(p); p += 4; for (i=0; i < ITEMS_PER_HLST_RECORD; i++) { rec->r.hlst.rnum[i] = buf32_to_ulong(p); p += 4; } break; case RECTYPE_TRUST: memcpy (rec->r.trust.fingerprint, p, 20); p+=20; rec->r.trust.ownertrust = *p++; rec->r.trust.depth = *p++; rec->r.trust.min_ownertrust = *p++; p++; rec->r.trust.validlist = buf32_to_ulong(p); break; case RECTYPE_VALID: memcpy (rec->r.valid.namehash, p, 20); p+=20; rec->r.valid.validity = *p++; rec->r.valid.next = buf32_to_ulong(p); p += 4; rec->r.valid.full_count = *p++; rec->r.valid.marginal_count = *p++; break; default: log_error ("%s: invalid record type %d at recnum %lu\n", db_name, rec->rectype, (ulong)recnum); err = gpg_error (GPG_ERR_TRUSTDB); break; } return err; } /* * Write the record from the struct REC. * * Return: 0 on success or an error code. */ int tdbio_write_record (ctrl_t ctrl, TRUSTREC *rec) { byte buf[TRUST_RECORD_LEN]; byte *p; int rc = 0; int i; ulong recnum = rec->recnum; if (db_fd == -1) open_db (); memset (buf, 0, TRUST_RECORD_LEN); p = buf; *p++ = rec->rectype; p++; switch (rec->rectype) { case 0: /* unused record */ break; case RECTYPE_VER: /* version record */ if (recnum) BUG (); memcpy(p-1, GPGEXT_GPG, 3 ); p += 2; *p++ = rec->r.ver.version; *p++ = rec->r.ver.marginals; *p++ = rec->r.ver.completes; *p++ = rec->r.ver.cert_depth; *p++ = rec->r.ver.trust_model; *p++ = rec->r.ver.min_cert_level; p += 2; ulongtobuf(p, rec->r.ver.created); p += 4; ulongtobuf(p, rec->r.ver.nextcheck); p += 4; p += 4; p += 4; ulongtobuf(p, rec->r.ver.firstfree ); p += 4; p += 4; ulongtobuf(p, rec->r.ver.trusthashtbl ); p += 4; break; case RECTYPE_FREE: ulongtobuf(p, rec->r.free.next); p += 4; break; case RECTYPE_HTBL: for (i=0; i < ITEMS_PER_HTBL_RECORD; i++) { ulongtobuf( p, rec->r.htbl.item[i]); p += 4; } break; case RECTYPE_HLST: ulongtobuf( p, rec->r.hlst.next); p += 4; for (i=0; i < ITEMS_PER_HLST_RECORD; i++ ) { ulongtobuf( p, rec->r.hlst.rnum[i]); p += 4; } break; case RECTYPE_TRUST: memcpy (p, rec->r.trust.fingerprint, 20); p += 20; *p++ = rec->r.trust.ownertrust; *p++ = rec->r.trust.depth; *p++ = rec->r.trust.min_ownertrust; p++; ulongtobuf( p, rec->r.trust.validlist); p += 4; break; case RECTYPE_VALID: memcpy (p, rec->r.valid.namehash, 20); p += 20; *p++ = rec->r.valid.validity; ulongtobuf( p, rec->r.valid.next); p += 4; *p++ = rec->r.valid.full_count; *p++ = rec->r.valid.marginal_count; break; default: BUG(); } rc = put_record_into_cache (recnum, buf); if (rc) ; else if (rec->rectype == RECTYPE_TRUST) rc = update_trusthashtbl (ctrl, rec); return rc; } /* * Delete the record at record number RECNUm from the trustdb. * * Return: 0 on success or an error code. */ int tdbio_delete_record (ctrl_t ctrl, ulong recnum) { TRUSTREC vr, rec; int rc; /* Must read the record fist, so we can drop it from the hash tables */ rc = tdbio_read_record (recnum, &rec, 0); if (rc) ; else if (rec.rectype == RECTYPE_TRUST) { rc = drop_from_hashtable (ctrl, get_trusthashrec (ctrl), rec.r.trust.fingerprint, 20, rec.recnum); } if (rc) return rc; /* Now we can change it to a free record. */ rc = tdbio_read_record (0, &vr, RECTYPE_VER); if (rc) log_fatal (_("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc)); rec.recnum = recnum; rec.rectype = RECTYPE_FREE; rec.r.free.next = vr.r.ver.firstfree; vr.r.ver.firstfree = recnum; rc = tdbio_write_record (ctrl, &rec); if (!rc) rc = tdbio_write_record (ctrl, &vr); return rc; } /* * Create a new record and return its record number. */ ulong tdbio_new_recnum (ctrl_t ctrl) { off_t offset; ulong recnum; TRUSTREC vr, rec; int rc; /* Look for unused records. */ rc = tdbio_read_record (0, &vr, RECTYPE_VER); if (rc) log_fatal( _("%s: error reading version record: %s\n"), db_name, gpg_strerror (rc)); if (vr.r.ver.firstfree) { recnum = vr.r.ver.firstfree; rc = tdbio_read_record (recnum, &rec, RECTYPE_FREE); if (rc) log_fatal (_("%s: error reading free record: %s\n"), db_name, gpg_strerror (rc)); /* Update dir record. */ vr.r.ver.firstfree = rec.r.free.next; rc = tdbio_write_record (ctrl, &vr); if (rc) log_fatal (_("%s: error writing dir record: %s\n"), db_name, gpg_strerror (rc)); /* Zero out the new record. */ memset (&rec, 0, sizeof rec); rec.rectype = 0; /* Mark as unused record (actually already done my the memset). */ rec.recnum = recnum; rc = tdbio_write_record (ctrl, &rec); if (rc) log_fatal (_("%s: failed to zero a record: %s\n"), db_name, gpg_strerror (rc)); } else /* Not found - append a new record. */ { offset = lseek (db_fd, 0, SEEK_END); if (offset == (off_t)(-1)) log_fatal ("trustdb: lseek to end failed: %s\n", strerror (errno)); recnum = offset / TRUST_RECORD_LEN; log_assert (recnum); /* This will never be the first record */ /* We must write a record, so that the next call to this * function returns another recnum. */ memset (&rec, 0, sizeof rec); rec.rectype = 0; /* unused record */ rec.recnum = recnum; rc = 0; if (lseek( db_fd, recnum * TRUST_RECORD_LEN, SEEK_SET) == -1) { rc = gpg_error_from_syserror (); log_error (_("trustdb rec %lu: lseek failed: %s\n"), recnum, strerror (errno)); } else { int n; n = write (db_fd, &rec, TRUST_RECORD_LEN); if (n != TRUST_RECORD_LEN) { rc = gpg_error_from_syserror (); log_error (_("trustdb rec %lu: write failed (n=%d): %s\n"), recnum, n, gpg_strerror (rc)); } } if (rc) log_fatal (_("%s: failed to append a record: %s\n"), db_name, gpg_strerror (rc)); } return recnum ; } /* Helper function for tdbio_search_trust_byfpr. */ static int cmp_trec_fpr ( const void *fpr, const TRUSTREC *rec ) { return (rec->rectype == RECTYPE_TRUST && !memcmp (rec->r.trust.fingerprint, fpr, 20)); } /* * Given a 20 byte FINGERPRINT search its trust record and return * that at REC. * * Return: 0 if found, GPG_ERR_NOT_FOUND, or another error code. */ gpg_error_t tdbio_search_trust_byfpr (ctrl_t ctrl, const byte *fingerprint, TRUSTREC *rec) { int rc; /* Locate the trust record using the hash table */ rc = lookup_hashtable (get_trusthashrec (ctrl), fingerprint, 20, cmp_trec_fpr, fingerprint, rec ); return rc; } /* * Given a primary public key object PK search its trust record and * return that at REC. * * Return: 0 if found, GPG_ERR_NOT_FOUND, or another error code. */ gpg_error_t tdbio_search_trust_bypk (ctrl_t ctrl, PKT_public_key *pk, TRUSTREC *rec) { byte fingerprint[20]; fpr20_from_pk (pk, fingerprint); return tdbio_search_trust_byfpr (ctrl, fingerprint, rec); } /* * Terminate the process with a message about a corrupted trustdb. */ void tdbio_invalid (void) { log_error (_("Error: The trustdb is corrupted.\n")); how_to_fix_the_trustdb (); g10_exit (2); } diff --git a/sm/gpgsm.c b/sm/gpgsm.c index ef5f801c8..e461f99fe 100644 --- a/sm/gpgsm.c +++ b/sm/gpgsm.c @@ -1,2432 +1,2432 @@ /* gpgsm.c - GnuPG for S/MIME * Copyright (C) 2001-2020 Free Software Foundation, Inc. * Copyright (C) 2001-2019 Werner Koch * Copyright (C) 2015-2020 g10 Code GmbH * * This file is part of GnuPG. * * GnuPG is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * GnuPG is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * SPDX-License-Identifier: GPL-3.0-or-later */ #include #include #include #include #include #include #include #include /*#include */ #define INCLUDED_BY_MAIN_MODULE 1 #include "gpgsm.h" #include #include /* malloc hooks */ #include "passphrase.h" #include "../common/shareddefs.h" #include "../kbx/keybox.h" /* malloc hooks */ #include "../common/i18n.h" #include "keydb.h" #include "../common/sysutils.h" #include "../common/gc-opt-flags.h" #include "../common/asshelp.h" #include "../common/init.h" #include "../common/compliance.h" #ifndef O_BINARY #define O_BINARY 0 #endif enum cmd_and_opt_values { aNull = 0, oArmor = 'a', aDetachedSign = 'b', aSym = 'c', aDecrypt = 'd', aEncr = 'e', aListKeys = 'k', aListSecretKeys = 'K', oDryRun = 'n', oOutput = 'o', oQuiet = 'q', oRecipient = 'r', aSign = 's', oUser = 'u', oVerbose = 'v', oBatch = 500, aClearsign, aKeygen, aSignEncr, aDeleteKey, aImport, aVerify, aListExternalKeys, aListChain, aSendKeys, aRecvKeys, aExport, aExportSecretKeyP12, aExportSecretKeyP8, aExportSecretKeyRaw, aServer, aLearnCard, aCallDirmngr, aCallProtectTool, aPasswd, aGPGConfList, aGPGConfTest, aDumpKeys, aDumpChain, aDumpSecretKeys, aDumpExternalKeys, aKeydbClearSomeCertFlags, aFingerprint, oOptions, oDebug, oDebugLevel, oDebugAll, oDebugNone, oDebugWait, oDebugAllowCoreDump, oDebugNoChainValidation, oDebugIgnoreExpiration, oDebugForceECDHSHA1KDF, oLogFile, oNoLogFile, oAuditLog, oHtmlAuditLog, oEnableSpecialFilenames, oAgentProgram, oDisplay, oTTYname, oTTYtype, oLCctype, oLCmessages, oXauthority, oPreferSystemDirmngr, oDirmngrProgram, oDisableDirmngr, oProtectToolProgram, oFakedSystemTime, oPassphraseFD, oPinentryMode, oRequestOrigin, oAssumeArmor, oAssumeBase64, oAssumeBinary, oBase64, oNoArmor, oP12Charset, oCompliance, oDisableCRLChecks, oEnableCRLChecks, oDisableTrustedCertCRLCheck, oEnableTrustedCertCRLCheck, oForceCRLRefresh, oEnableIssuerBasedCRLCheck, oDisableOCSP, oEnableOCSP, oIncludeCerts, oPolicyFile, oDisablePolicyChecks, oEnablePolicyChecks, oAutoIssuerKeyRetrieve, oWithFingerprint, oWithMD5Fingerprint, oWithKeygrip, oWithSecret, oWithKeyScreening, oAnswerYes, oAnswerNo, oKeyring, oDefaultKey, oDefRecipient, oDefRecipientSelf, oNoDefRecipient, oStatusFD, oCipherAlgo, oDigestAlgo, oExtraDigestAlgo, oNoVerbose, oNoSecmemWarn, oNoDefKeyring, oNoGreeting, oNoTTY, oNoOptions, oNoBatch, oHomedir, oWithColons, oWithKeyData, oWithValidation, oWithEphemeralKeys, oSkipVerify, oValidationModel, oKeyServer, oEncryptTo, oNoEncryptTo, oLoggerFD, oDisableCipherAlgo, oDisablePubkeyAlgo, oIgnoreTimeConflict, oNoRandomSeedFile, oNoCommonCertsImport, oIgnoreCertExtension, oAuthenticode, oAttribute, oChUid, oUseKeyboxd, oKeyboxdProgram, oNoAutostart }; static gpgrt_opt_t opts[] = { ARGPARSE_group (300, N_("@Commands:\n ")), ARGPARSE_c (aSign, "sign", N_("make a signature")), /*ARGPARSE_c (aClearsign, "clearsign", N_("make a clear text signature") ),*/ ARGPARSE_c (aDetachedSign, "detach-sign", N_("make a detached signature")), ARGPARSE_c (aEncr, "encrypt", N_("encrypt data")), /*ARGPARSE_c (aSym, "symmetric", N_("encryption only with symmetric cipher")),*/ ARGPARSE_c (aDecrypt, "decrypt", N_("decrypt data (default)")), ARGPARSE_c (aVerify, "verify", N_("verify a signature")), ARGPARSE_c (aListKeys, "list-keys", N_("list keys")), ARGPARSE_c (aListExternalKeys, "list-external-keys", N_("list external keys")), ARGPARSE_c (aListSecretKeys, "list-secret-keys", N_("list secret keys")), ARGPARSE_c (aListChain, "list-chain", N_("list certificate chain")), ARGPARSE_c (aFingerprint, "fingerprint", N_("list keys and fingerprints")), ARGPARSE_c (aKeygen, "generate-key", N_("generate a new key pair")), ARGPARSE_c (aKeygen, "gen-key", "@"), ARGPARSE_c (aDeleteKey, "delete-keys", N_("remove keys from the public keyring")), /*ARGPARSE_c (aSendKeys, "send-keys", N_("export keys to a keyserver")),*/ /*ARGPARSE_c (aRecvKeys, "recv-keys", N_("import keys from a keyserver")),*/ ARGPARSE_c (aImport, "import", N_("import certificates")), ARGPARSE_c (aExport, "export", N_("export certificates")), /* We use -raw and not -p1 for pkcs#1 secret key export so that it won't accidentally be used in case -p12 was intended. */ ARGPARSE_c (aExportSecretKeyP12, "export-secret-key-p12", "@"), ARGPARSE_c (aExportSecretKeyP8, "export-secret-key-p8", "@"), ARGPARSE_c (aExportSecretKeyRaw, "export-secret-key-raw", "@"), ARGPARSE_c (aLearnCard, "learn-card", N_("register a smartcard")), ARGPARSE_c (aServer, "server", N_("run in server mode")), ARGPARSE_c (aCallDirmngr, "call-dirmngr", N_("pass a command to the dirmngr")), ARGPARSE_c (aCallProtectTool, "call-protect-tool", N_("invoke gpg-protect-tool")), ARGPARSE_c (aPasswd, "change-passphrase", N_("change a passphrase")), ARGPARSE_c (aPasswd, "passwd", "@"), ARGPARSE_c (aGPGConfList, "gpgconf-list", "@"), ARGPARSE_c (aGPGConfTest, "gpgconf-test", "@"), ARGPARSE_c (aDumpKeys, "dump-cert", "@"), ARGPARSE_c (aDumpKeys, "dump-keys", "@"), ARGPARSE_c (aDumpChain, "dump-chain", "@"), ARGPARSE_c (aDumpExternalKeys, "dump-external-keys", "@"), ARGPARSE_c (aDumpSecretKeys, "dump-secret-keys", "@"), ARGPARSE_c (aKeydbClearSomeCertFlags, "keydb-clear-some-cert-flags", "@"), ARGPARSE_header ("Monitor", N_("Options controlling the diagnostic output")), ARGPARSE_s_n (oVerbose, "verbose", N_("verbose")), ARGPARSE_s_n (oNoVerbose, "no-verbose", "@"), ARGPARSE_s_n (oQuiet, "quiet", N_("be somewhat more quiet")), ARGPARSE_s_n (oNoTTY, "no-tty", N_("don't use the terminal at all")), ARGPARSE_s_n (oNoGreeting, "no-greeting", "@"), ARGPARSE_s_s (oDebug, "debug", "@"), ARGPARSE_s_s (oDebugLevel, "debug-level", N_("|LEVEL|set the debugging level to LEVEL")), ARGPARSE_s_n (oDebugAll, "debug-all", "@"), ARGPARSE_s_n (oDebugNone, "debug-none", "@"), ARGPARSE_s_i (oDebugWait, "debug-wait", "@"), ARGPARSE_s_n (oDebugAllowCoreDump, "debug-allow-core-dump", "@"), ARGPARSE_s_n (oDebugNoChainValidation, "debug-no-chain-validation", "@"), ARGPARSE_s_n (oDebugIgnoreExpiration, "debug-ignore-expiration", "@"), ARGPARSE_s_n (oDebugForceECDHSHA1KDF, "debug-force-ecdh-sha1kdf", "@"), ARGPARSE_s_s (oLogFile, "log-file", N_("|FILE|write server mode logs to FILE")), ARGPARSE_s_n (oNoLogFile, "no-log-file", "@"), ARGPARSE_s_i (oLoggerFD, "logger-fd", "@"), ARGPARSE_s_n (oNoSecmemWarn, "no-secmem-warning", "@"), ARGPARSE_header ("Configuration", N_("Options controlling the configuration")), ARGPARSE_s_s (oHomedir, "homedir", "@"), ARGPARSE_s_s (oFakedSystemTime, "faked-system-time", "@"), ARGPARSE_s_n (oPreferSystemDirmngr,"prefer-system-dirmngr", "@"), ARGPARSE_s_s (oValidationModel, "validation-model", "@"), ARGPARSE_s_i (oIncludeCerts, "include-certs", N_("|N|number of certificates to include") ), ARGPARSE_s_s (oPolicyFile, "policy-file", N_("|FILE|take policy information from FILE")), ARGPARSE_s_s (oCompliance, "compliance", "@"), ARGPARSE_s_n (oNoCommonCertsImport, "no-common-certs-import", "@"), ARGPARSE_s_s (oIgnoreCertExtension, "ignore-cert-extension", "@"), ARGPARSE_s_n (oNoAutostart, "no-autostart", "@"), ARGPARSE_s_s (oAgentProgram, "agent-program", "@"), ARGPARSE_s_s (oKeyboxdProgram, "keyboxd-program", "@"), ARGPARSE_s_s (oDirmngrProgram, "dirmngr-program", "@"), ARGPARSE_s_s (oProtectToolProgram, "protect-tool-program", "@"), ARGPARSE_header ("Input", N_("Options controlling the input")), ARGPARSE_s_n (oAssumeArmor, "assume-armor", N_("assume input is in PEM format")), ARGPARSE_s_n (oAssumeBase64, "assume-base64", N_("assume input is in base-64 format")), ARGPARSE_s_n (oAssumeBinary, "assume-binary", N_("assume input is in binary format")), ARGPARSE_header ("Output", N_("Options controlling the output")), ARGPARSE_s_n (oArmor, "armor", N_("create ascii armored output")), ARGPARSE_s_n (oArmor, "armour", "@"), ARGPARSE_s_n (oNoArmor, "no-armor", "@"), ARGPARSE_s_n (oNoArmor, "no-armour", "@"), ARGPARSE_s_n (oBase64, "base64", N_("create base-64 encoded output")), ARGPARSE_s_s (oOutput, "output", N_("|FILE|write output to FILE")), ARGPARSE_s_n (oAuthenticode, "authenticode", "@"), ARGPARSE_s_s (oAttribute, "attribute", "@"), ARGPARSE_header (NULL, N_("Options to specify keys")), ARGPARSE_s_s (oRecipient, "recipient", N_("|USER-ID|encrypt for USER-ID")), ARGPARSE_s_s (oUser, "local-user", N_("|USER-ID|use USER-ID to sign or decrypt")), ARGPARSE_s_s (oDefaultKey, "default-key", N_("|USER-ID|use USER-ID as default secret key")), ARGPARSE_s_s (oEncryptTo, "encrypt-to", N_("|NAME|encrypt to user ID NAME as well")), ARGPARSE_s_n (oNoEncryptTo, "no-encrypt-to", "@"), /* Not yet used: */ /* ARGPARSE_s_s (oDefRecipient, "default-recipient", */ /* N_("|NAME|use NAME as default recipient")), */ /* ARGPARSE_s_n (oDefRecipientSelf, "default-recipient-self", */ /* N_("use the default key as default recipient")), */ /* ARGPARSE_s_n (oNoDefRecipient, "no-default-recipient", "@"), */ ARGPARSE_s_s (oKeyring, "keyring", N_("|FILE|add keyring to the list of keyrings")), ARGPARSE_s_n (oNoDefKeyring, "no-default-keyring", "@"), ARGPARSE_s_s (oKeyServer, "keyserver", N_("|SPEC|use this keyserver to lookup keys")), ARGPARSE_s_n (oUseKeyboxd, "use-keyboxd", "@"), ARGPARSE_header ("ImportExport", N_("Options controlling key import and export")), ARGPARSE_s_n (oDisableDirmngr, "disable-dirmngr", N_("disable all access to the dirmngr")), ARGPARSE_s_n (oAutoIssuerKeyRetrieve, "auto-issuer-key-retrieve", N_("fetch missing issuer certificates")), ARGPARSE_s_s (oP12Charset, "p12-charset", N_("|NAME|use encoding NAME for PKCS#12 passphrases")), ARGPARSE_header ("Keylist", N_("Options controlling key listings")), ARGPARSE_s_n (oWithColons, "with-colons", "@"), ARGPARSE_s_n (oWithKeyData,"with-key-data", "@"), ARGPARSE_s_n (oWithValidation, "with-validation", "@"), ARGPARSE_s_n (oWithMD5Fingerprint, "with-md5-fingerprint", "@"), ARGPARSE_s_n (oWithEphemeralKeys, "with-ephemeral-keys", "@"), ARGPARSE_s_n (oSkipVerify, "skip-verify", "@"), ARGPARSE_s_n (oWithFingerprint, "with-fingerprint", "@"), ARGPARSE_s_n (oWithKeygrip, "with-keygrip", "@"), ARGPARSE_s_n (oWithSecret, "with-secret", "@"), ARGPARSE_s_n (oWithKeyScreening,"with-key-screening", "@"), ARGPARSE_header ("Security", N_("Options controlling the security")), ARGPARSE_s_n (oDisableCRLChecks, "disable-crl-checks", N_("never consult a CRL")), ARGPARSE_s_n (oEnableCRLChecks, "enable-crl-checks", "@"), ARGPARSE_s_n (oDisableTrustedCertCRLCheck, "disable-trusted-cert-crl-check", N_("do not check CRLs for root certificates")), ARGPARSE_s_n (oEnableTrustedCertCRLCheck, "enable-trusted-cert-crl-check", "@"), ARGPARSE_s_n (oDisableOCSP, "disable-ocsp", "@"), ARGPARSE_s_n (oEnableOCSP, "enable-ocsp", N_("check validity using OCSP")), ARGPARSE_s_n (oDisablePolicyChecks, "disable-policy-checks", N_("do not check certificate policies")), ARGPARSE_s_n (oEnablePolicyChecks, "enable-policy-checks", "@"), ARGPARSE_s_s (oCipherAlgo, "cipher-algo", N_("|NAME|use cipher algorithm NAME")), ARGPARSE_s_s (oDigestAlgo, "digest-algo", N_("|NAME|use message digest algorithm NAME")), ARGPARSE_s_s (oExtraDigestAlgo, "extra-digest-algo", "@"), ARGPARSE_s_s (oDisableCipherAlgo, "disable-cipher-algo", "@"), ARGPARSE_s_s (oDisablePubkeyAlgo, "disable-pubkey-algo", "@"), ARGPARSE_s_n (oIgnoreTimeConflict, "ignore-time-conflict", "@"), ARGPARSE_s_n (oNoRandomSeedFile, "no-random-seed-file", "@"), ARGPARSE_header (NULL, N_("Options for unattended use")), ARGPARSE_s_n (oBatch, "batch", N_("batch mode: never ask")), ARGPARSE_s_n (oNoBatch, "no-batch", "@"), ARGPARSE_s_n (oAnswerYes, "yes", N_("assume yes on most questions")), ARGPARSE_s_n (oAnswerNo, "no", N_("assume no on most questions")), ARGPARSE_s_i (oStatusFD, "status-fd", N_("|FD|write status info to this FD")), ARGPARSE_s_n (oEnableSpecialFilenames, "enable-special-filenames", "@"), ARGPARSE_s_i (oPassphraseFD, "passphrase-fd", "@"), ARGPARSE_s_s (oPinentryMode, "pinentry-mode", "@"), ARGPARSE_header (NULL, N_("Other options")), ARGPARSE_conffile (oOptions, "options", N_("|FILE|read options from FILE")), ARGPARSE_noconffile (oNoOptions, "no-options", "@"), ARGPARSE_s_n (oDryRun, "dry-run", N_("do not make any changes")), ARGPARSE_s_s (oRequestOrigin, "request-origin", "@"), ARGPARSE_s_n (oForceCRLRefresh, "force-crl-refresh", "@"), ARGPARSE_s_n (oEnableIssuerBasedCRLCheck, "enable-issuer-based-crl-check", "@"), ARGPARSE_s_s (oAuditLog, "audit-log", N_("|FILE|write an audit log to FILE")), ARGPARSE_s_s (oHtmlAuditLog, "html-audit-log", "@"), ARGPARSE_s_s (oDisplay, "display", "@"), ARGPARSE_s_s (oTTYname, "ttyname", "@"), ARGPARSE_s_s (oTTYtype, "ttytype", "@"), ARGPARSE_s_s (oLCctype, "lc-ctype", "@"), ARGPARSE_s_s (oLCmessages, "lc-messages", "@"), ARGPARSE_s_s (oXauthority, "xauthority", "@"), ARGPARSE_s_s (oChUid, "chuid", "@"), ARGPARSE_header (NULL, ""), /* Stop the header group. */ /* Command aliases. */ ARGPARSE_c (aListKeys, "list-key", "@"), ARGPARSE_c (aListChain, "list-signatures", "@"), ARGPARSE_c (aListChain, "list-sigs", "@"), ARGPARSE_c (aListChain, "check-signatures", "@"), ARGPARSE_c (aListChain, "check-sigs", "@"), ARGPARSE_c (aDeleteKey, "delete-key", "@"), ARGPARSE_group (302, N_( "@\n(See the man page for a complete listing of all commands and options)\n" )), ARGPARSE_end () }; /* The list of supported debug flags. */ static struct debug_flags_s debug_flags [] = { { DBG_X509_VALUE , "x509" }, { DBG_MPI_VALUE , "mpi" }, { DBG_CRYPTO_VALUE , "crypto" }, { DBG_MEMORY_VALUE , "memory" }, { DBG_CACHE_VALUE , "cache" }, { DBG_MEMSTAT_VALUE, "memstat" }, { DBG_HASHING_VALUE, "hashing" }, { DBG_IPC_VALUE , "ipc" }, { DBG_CLOCK_VALUE , "clock" }, { DBG_LOOKUP_VALUE , "lookup" }, { 0, NULL } }; /* Global variable to keep an error count. */ int gpgsm_errors_seen = 0; /* It is possible that we are currentlu running under setuid permissions */ static int maybe_setuid = 1; /* Helper to implement --debug-level and --debug*/ static const char *debug_level; static unsigned int debug_value; /* Default value for include-certs. We need an extra macro for gpgconf-list because the variable will be changed by the command line option. It is often cumbersome to locate intermediate certificates, thus by default we include all certificates in the chain. However we leave out the root certificate because that would make it too easy for the recipient to import that root certificate. A root certificate should be installed only after due checks and thus it won't help to send it along with each message. */ #define DEFAULT_INCLUDE_CERTS -2 /* Include all certs but root. */ static int default_include_certs = DEFAULT_INCLUDE_CERTS; /* Whether the chain mode shall be used for validation. */ static int default_validation_model; /* The default cipher algo. */ #define DEFAULT_CIPHER_ALGO "AES" static char *build_list (const char *text, const char *(*mapf)(int), int (*chkf)(int)); static void set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd ); static void emergency_cleanup (void); static int open_read (const char *filename); static estream_t open_es_fread (const char *filename, const char *mode); static estream_t open_es_fwrite (const char *filename); static void run_protect_tool (int argc, char **argv); static int our_pk_test_algo (int algo) { switch (algo) { case GCRY_PK_RSA: case GCRY_PK_ECDSA: case GCRY_PK_EDDSA: return gcry_pk_test_algo (algo); default: return 1; } } static int our_cipher_test_algo (int algo) { switch (algo) { case GCRY_CIPHER_3DES: case GCRY_CIPHER_AES128: case GCRY_CIPHER_AES192: case GCRY_CIPHER_AES256: case GCRY_CIPHER_SERPENT128: case GCRY_CIPHER_SERPENT192: case GCRY_CIPHER_SERPENT256: case GCRY_CIPHER_SEED: case GCRY_CIPHER_CAMELLIA128: case GCRY_CIPHER_CAMELLIA192: case GCRY_CIPHER_CAMELLIA256: return gcry_cipher_test_algo (algo); default: return 1; } } static int our_md_test_algo (int algo) { switch (algo) { case GCRY_MD_MD5: case GCRY_MD_SHA1: case GCRY_MD_RMD160: case GCRY_MD_SHA224: case GCRY_MD_SHA256: case GCRY_MD_SHA384: case GCRY_MD_SHA512: case GCRY_MD_WHIRLPOOL: return gcry_md_test_algo (algo); default: return 1; } } static char * make_libversion (const char *libname, const char *(*getfnc)(const char*)) { const char *s; char *result; if (maybe_setuid) { gcry_control (GCRYCTL_INIT_SECMEM, 0, 0); /* Drop setuid. */ maybe_setuid = 0; } s = getfnc (NULL); result = xmalloc (strlen (libname) + 1 + strlen (s) + 1); strcpy (stpcpy (stpcpy (result, libname), " "), s); return result; } static const char * my_strusage( int level ) { static char *digests, *pubkeys, *ciphers; static char *ver_gcry, *ver_ksba; const char *p; switch (level) { case 9: p = "GPL-3.0-or-later"; break; case 11: p = "@GPGSM@ (@GNUPG@)"; break; case 13: p = VERSION; break; case 14: p = GNUPG_DEF_COPYRIGHT_LINE; break; case 17: p = PRINTABLE_OS_NAME; break; case 19: p = _("Please report bugs to <@EMAIL@>.\n"); break; case 1: case 40: p = _("Usage: @GPGSM@ [options] [files] (-h for help)"); break; case 41: p = _("Syntax: @GPGSM@ [options] [files]\n" "Sign, check, encrypt or decrypt using the S/MIME protocol\n" "Default operation depends on the input data\n"); break; case 20: if (!ver_gcry) ver_gcry = make_libversion ("libgcrypt", gcry_check_version); p = ver_gcry; break; case 21: if (!ver_ksba) ver_ksba = make_libversion ("libksba", ksba_check_version); p = ver_ksba; break; case 31: p = "\nHome: "; break; case 32: p = gnupg_homedir (); break; case 33: p = _("\nSupported algorithms:\n"); break; case 34: if (!ciphers) ciphers = build_list ("Cipher: ", gnupg_cipher_algo_name, our_cipher_test_algo ); p = ciphers; break; case 35: if (!pubkeys) pubkeys = build_list ("Pubkey: ", gcry_pk_algo_name, our_pk_test_algo ); p = pubkeys; break; case 36: if (!digests) digests = build_list("Hash: ", gcry_md_algo_name, our_md_test_algo ); p = digests; break; default: p = NULL; break; } return p; } static char * build_list (const char *text, const char * (*mapf)(int), int (*chkf)(int)) { int i; size_t n=strlen(text)+2; char *list, *p; if (maybe_setuid) { gcry_control (GCRYCTL_DROP_PRIVS); /* drop setuid */ } for (i=1; i < 400; i++ ) if (!chkf(i)) n += strlen(mapf(i)) + 2; list = xmalloc (21 + n); *list = 0; for (p=NULL, i=1; i < 400; i++) { if (!chkf(i)) { if( !p ) p = stpcpy (list, text ); else p = stpcpy (p, ", "); p = stpcpy (p, mapf(i) ); } } if (p) strcpy (p, "\n" ); return list; } /* Set the file pointer into binary mode if required. */ static void set_binary (FILE *fp) { #ifdef HAVE_DOSISH_SYSTEM setmode (fileno (fp), O_BINARY); #else (void)fp; #endif } static void wrong_args (const char *text) { fprintf (stderr, _("usage: %s [options] %s\n"), GPGSM_NAME, text); gpgsm_exit (2); } static void set_opt_session_env (const char *name, const char *value) { gpg_error_t err; err = session_env_setenv (opt.session_env, name, value); if (err) log_fatal ("error setting session environment: %s\n", gpg_strerror (err)); } /* Setup the debugging. With a DEBUG_LEVEL of NULL only the active debug flags are propagated to the subsystems. With DEBUG_LEVEL set, a specific set of debug flags is set; and individual debugging flags will be added on top. */ static void set_debug (void) { int numok = (debug_level && digitp (debug_level)); int numlvl = numok? atoi (debug_level) : 0; if (!debug_level) ; else if (!strcmp (debug_level, "none") || (numok && numlvl < 1)) opt.debug = 0; else if (!strcmp (debug_level, "basic") || (numok && numlvl <= 2)) opt.debug = DBG_IPC_VALUE; else if (!strcmp (debug_level, "advanced") || (numok && numlvl <= 5)) opt.debug = DBG_IPC_VALUE|DBG_X509_VALUE; else if (!strcmp (debug_level, "expert") || (numok && numlvl <= 8)) opt.debug = (DBG_IPC_VALUE|DBG_X509_VALUE |DBG_CACHE_VALUE|DBG_CRYPTO_VALUE); else if (!strcmp (debug_level, "guru") || numok) { opt.debug = ~0; /* Unless the "guru" string has been used we don't want to allow hashing debugging. The rationale is that people tend to select the highest debug value and would then clutter their disk with debug files which may reveal confidential data. */ if (numok) opt.debug &= ~(DBG_HASHING_VALUE); } else { log_error (_("invalid debug-level '%s' given\n"), debug_level); gpgsm_exit (2); } opt.debug |= debug_value; if (opt.debug && !opt.verbose) opt.verbose = 1; if (opt.debug) opt.quiet = 0; if (opt.debug & DBG_MPI_VALUE) gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 2); if (opt.debug & DBG_CRYPTO_VALUE ) gcry_control (GCRYCTL_SET_DEBUG_FLAGS, 1); gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); if (opt.debug) parse_debug_flag (NULL, &opt.debug, debug_flags); } static void set_cmd (enum cmd_and_opt_values *ret_cmd, enum cmd_and_opt_values new_cmd) { enum cmd_and_opt_values cmd = *ret_cmd; if (!cmd || cmd == new_cmd) cmd = new_cmd; else if ( cmd == aSign && new_cmd == aEncr ) cmd = aSignEncr; else if ( cmd == aEncr && new_cmd == aSign ) cmd = aSignEncr; else if ( (cmd == aSign && new_cmd == aClearsign) || (cmd == aClearsign && new_cmd == aSign) ) cmd = aClearsign; else { log_error(_("conflicting commands\n")); gpgsm_exit(2); } *ret_cmd = cmd; } /* Helper to add recipients to a list. */ static void do_add_recipient (ctrl_t ctrl, const char *name, certlist_t *recplist, int is_encrypt_to, int recp_required) { int rc = gpgsm_add_to_certlist (ctrl, name, 0, recplist, is_encrypt_to); if (rc) { if (recp_required) { log_error ("can't encrypt to '%s': %s\n", name, gpg_strerror (rc)); gpgsm_status2 (ctrl, STATUS_INV_RECP, get_inv_recpsgnr_code (rc), name, NULL); } else log_info (_("Note: won't be able to encrypt to '%s': %s\n"), name, gpg_strerror (rc)); } } static void parse_validation_model (const char *model) { int i = gpgsm_parse_validation_model (model); if (i == -1) log_error (_("unknown validation model '%s'\n"), model); else default_validation_model = i; } /* Release the list of SERVERS. As usual it is okay to call this function with SERVERS passed as NULL. */ void keyserver_list_free (struct keyserver_spec *servers) { while (servers) { struct keyserver_spec *tmp = servers->next; xfree (servers->host); xfree (servers->user); if (servers->pass) memset (servers->pass, 0, strlen (servers->pass)); xfree (servers->pass); xfree (servers->base); xfree (servers); servers = tmp; } } /* See also dirmngr ldapserver_parse_one(). */ struct keyserver_spec * parse_keyserver_line (char *line, const char *filename, unsigned int lineno) { char *p; char *endp; const char *s; struct keyserver_spec *server; int fieldno; int fail = 0; int i; if (!filename) { filename = "[cmd]"; lineno = 0; } /* Parse the colon separated fields. */ server = xcalloc (1, sizeof *server); for (fieldno = 1, p = line; p; p = endp, fieldno++ ) { endp = strchr (p, ':'); if (endp) *endp++ = '\0'; trim_spaces (p); switch (fieldno) { case 1: if (*p) server->host = xstrdup (p); else { log_error (_("%s:%u: no hostname given\n"), filename, lineno); fail = 1; } break; case 2: if (*p) server->port = atoi (p); break; case 3: if (*p) server->user = xstrdup (p); break; case 4: if (*p && !server->user) { log_error (_("%s:%u: password given without user\n"), filename, lineno); fail = 1; } else if (*p) server->pass = xstrdup (p); break; case 5: if (*p) server->base = xstrdup (p); break; case 6: { char **flags = NULL; flags = strtokenize (p, ","); if (!flags) log_fatal ("strtokenize failed: %s\n", gpg_strerror (gpg_error_from_syserror ())); for (i=0; (s = flags[i]); i++) { if (!*s) ; else if (!ascii_strcasecmp (s, "ldaps")) server->use_ldaps = 1; else if (!ascii_strcasecmp (s, "ldap")) server->use_ldaps = 0; else log_info (_("%s:%u: ignoring unknown flag '%s'\n"), filename, lineno, s); } xfree (flags); } break; default: /* (We silently ignore extra fields.) */ break; } } if (fail) { log_info (_("%s:%u: skipping this line\n"), filename, lineno); keyserver_list_free (server); server = NULL; } return server; } int main ( int argc, char **argv) { gpg_error_t err = 0; gpgrt_argparse_t pargs; int orig_argc; char **orig_argv; /* char *username;*/ int may_coredump; strlist_t sl, remusr= NULL, locusr=NULL; strlist_t nrings=NULL; int detached_sig = 0; char *last_configname = NULL; const char *configname = NULL; /* NULL or points to last_configname. * NULL also indicates that we are * processing options from the cmdline. */ int debug_argparser = 0; int no_more_options = 0; int default_keyring = 1; char *logfile = NULL; char *auditlog = NULL; char *htmlauditlog = NULL; int greeting = 0; int nogreeting = 0; int debug_wait = 0; int use_random_seed = 1; int no_common_certs_import = 0; int with_fpr = 0; const char *forced_digest_algo = NULL; const char *extra_digest_algo = NULL; enum cmd_and_opt_values cmd = 0; struct server_control_s ctrl; certlist_t recplist = NULL; certlist_t signerlist = NULL; int do_not_setup_keys = 0; int recp_required = 0; estream_t auditfp = NULL; estream_t htmlauditfp = NULL; struct assuan_malloc_hooks malloc_hooks; int pwfd = -1; static const char *homedirvalue; static const char *changeuser; early_system_init (); gnupg_reopen_std (GPGSM_NAME); /* trap_unaligned ();*/ gnupg_rl_initialize (); gpgrt_set_strusage (my_strusage); gcry_control (GCRYCTL_SUSPEND_SECMEM_WARN); /* Please note that we may running SUID(ROOT), so be very CAREFUL when adding any stuff between here and the call to secmem_init() somewhere after the option parsing */ log_set_prefix (GPGSM_NAME, GPGRT_LOG_WITH_PREFIX); /* Make sure that our subsystems are ready. */ i18n_init (); init_common_subsystems (&argc, &argv); /* Check that the libraries are suitable. Do it here because the option parse may need services of the library */ if (!ksba_check_version (NEED_KSBA_VERSION) ) log_fatal (_("%s is too old (need %s, have %s)\n"), "libksba", NEED_KSBA_VERSION, ksba_check_version (NULL) ); gcry_control (GCRYCTL_USE_SECURE_RNDPOOL); may_coredump = disable_core_dumps (); gnupg_init_signals (0, emergency_cleanup); dotlock_create (NULL, 0); /* Register lockfile cleanup. */ /* Tell the compliance module who we are. */ gnupg_initialize_compliance (GNUPG_MODULE_NAME_GPGSM); opt.autostart = 1; opt.session_env = session_env_new (); if (!opt.session_env) log_fatal ("error allocating session environment block: %s\n", strerror (errno)); /* Note: If you change this default cipher algorithm , please remember to update the Gpgconflist entry as well. */ opt.def_cipher_algoid = DEFAULT_CIPHER_ALGO; /* First check whether we have a config file on the commandline */ orig_argc = argc; orig_argv = argv; pargs.argc = &argc; pargs.argv = &argv; pargs.flags= (ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_NOVERSION); while (gpgrt_argparse (NULL, &pargs, opts)) { switch (pargs.r_opt) { case oDebug: case oDebugAll: debug_argparser++; break; case oNoOptions: /* Set here here because the homedir would otherwise be * created before main option parsing starts. */ opt.no_homedir_creation = 1; break; case oHomedir: homedirvalue = pargs.r.ret_str; break; case oChUid: changeuser = pargs.r.ret_str; break; case aCallProtectTool: /* Make sure that --version and --help are passed to the * protect-tool. */ goto leave_cmdline_parser; } } leave_cmdline_parser: /* Reset the flags. */ pargs.flags &= ~(ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_NOVERSION); /* Initialize the secure memory. */ gcry_control (GCRYCTL_INIT_SECMEM, 16384, 0); maybe_setuid = 0; /* Now we are now working under our real uid */ ksba_set_malloc_hooks (gcry_malloc, gcry_realloc, gcry_free ); malloc_hooks.malloc = gcry_malloc; malloc_hooks.realloc = gcry_realloc; malloc_hooks.free = gcry_free; assuan_set_malloc_hooks (&malloc_hooks); assuan_set_gpg_err_source (GPG_ERR_SOURCE_DEFAULT); setup_libassuan_logging (&opt.debug, NULL); /* Change UID and then set homedir. */ if (changeuser && gnupg_chuid (changeuser, 0)) log_inc_errorcount (); /* Force later termination. */ gnupg_set_homedir (homedirvalue); /* Setup a default control structure for command line mode */ memset (&ctrl, 0, sizeof ctrl); gpgsm_init_default_ctrl (&ctrl); ctrl.no_server = 1; ctrl.status_fd = -1; /* No status output. */ ctrl.autodetect_encoding = 1; /* Set the default policy file */ opt.policy_file = make_filename (gnupg_homedir (), "policies.txt", NULL); /* The configuraton directories for use by gpgrt_argparser. */ gpgrt_set_confdir (GPGRT_CONFDIR_SYS, gnupg_sysconfdir ()); gpgrt_set_confdir (GPGRT_CONFDIR_USER, gnupg_homedir ()); /* We are re-using the struct, thus the reset flag. We OR the * flags so that the internal intialized flag won't be cleared. */ argc = orig_argc; argv = orig_argv; pargs.argc = &argc; pargs.argv = &argv; pargs.flags |= (ARGPARSE_FLAG_RESET | ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_SYS | ARGPARSE_FLAG_USER); while (!no_more_options && gpgrt_argparser (&pargs, opts, GPGSM_NAME EXTSEP_S "conf")) { switch (pargs.r_opt) { case ARGPARSE_CONFFILE: if (debug_argparser) log_info (_("reading options from '%s'\n"), pargs.r_type? pargs.r.ret_str: "[cmdline]"); if (pargs.r_type) { xfree (last_configname); last_configname = xstrdup (pargs.r.ret_str); configname = last_configname; } else configname = NULL; break; case aGPGConfList: case aGPGConfTest: set_cmd (&cmd, pargs.r_opt); do_not_setup_keys = 1; default_keyring = 0; nogreeting = 1; break; case aServer: opt.batch = 1; set_cmd (&cmd, aServer); break; case aCallDirmngr: opt.batch = 1; set_cmd (&cmd, aCallDirmngr); do_not_setup_keys = 1; break; case aCallProtectTool: opt.batch = 1; set_cmd (&cmd, aCallProtectTool); no_more_options = 1; /* Stop parsing. */ do_not_setup_keys = 1; break; case aDeleteKey: set_cmd (&cmd, aDeleteKey); /*greeting=1;*/ do_not_setup_keys = 1; break; case aDetachedSign: detached_sig = 1; set_cmd (&cmd, aSign ); break; case aKeygen: set_cmd (&cmd, aKeygen); greeting=1; do_not_setup_keys = 1; break; case aImport: case aSendKeys: case aRecvKeys: case aExport: case aExportSecretKeyP12: case aExportSecretKeyP8: case aExportSecretKeyRaw: case aDumpKeys: case aDumpChain: case aDumpExternalKeys: case aDumpSecretKeys: case aListKeys: case aListExternalKeys: case aListSecretKeys: case aListChain: case aLearnCard: case aPasswd: case aKeydbClearSomeCertFlags: do_not_setup_keys = 1; set_cmd (&cmd, pargs.r_opt); break; case aEncr: recp_required = 1; set_cmd (&cmd, pargs.r_opt); break; case aSym: case aDecrypt: case aSign: case aClearsign: case aVerify: set_cmd (&cmd, pargs.r_opt); break; /* Output encoding selection. */ case oArmor: ctrl.create_pem = 1; break; case oBase64: ctrl.create_pem = 0; ctrl.create_base64 = 1; break; case oNoArmor: ctrl.create_pem = 0; ctrl.create_base64 = 0; break; case oP12Charset: opt.p12_charset = pargs.r.ret_str; break; case oPassphraseFD: pwfd = translate_sys2libc_fd_int (pargs.r.ret_int, 0); break; case oPinentryMode: opt.pinentry_mode = parse_pinentry_mode (pargs.r.ret_str); if (opt.pinentry_mode == -1) log_error (_("invalid pinentry mode '%s'\n"), pargs.r.ret_str); break; case oRequestOrigin: opt.request_origin = parse_request_origin (pargs.r.ret_str); if (opt.request_origin == -1) log_error (_("invalid request origin '%s'\n"), pargs.r.ret_str); break; /* Input encoding selection. */ case oAssumeArmor: ctrl.autodetect_encoding = 0; ctrl.is_pem = 1; ctrl.is_base64 = 0; break; case oAssumeBase64: ctrl.autodetect_encoding = 0; ctrl.is_pem = 0; ctrl.is_base64 = 1; break; case oAssumeBinary: ctrl.autodetect_encoding = 0; ctrl.is_pem = 0; ctrl.is_base64 = 0; break; case oDisableCRLChecks: opt.no_crl_check = 1; break; case oEnableCRLChecks: opt.no_crl_check = 0; break; case oDisableTrustedCertCRLCheck: opt.no_trusted_cert_crl_check = 1; break; case oEnableTrustedCertCRLCheck: opt.no_trusted_cert_crl_check = 0; break; case oForceCRLRefresh: opt.force_crl_refresh = 1; break; case oEnableIssuerBasedCRLCheck: opt.enable_issuer_based_crl_check = 1; break; case oDisableOCSP: ctrl.use_ocsp = opt.enable_ocsp = 0; break; case oEnableOCSP: ctrl.use_ocsp = opt.enable_ocsp = 1; break; case oIncludeCerts: ctrl.include_certs = default_include_certs = pargs.r.ret_int; break; case oPolicyFile: xfree (opt.policy_file); if (*pargs.r.ret_str) opt.policy_file = xstrdup (pargs.r.ret_str); else opt.policy_file = NULL; break; case oDisablePolicyChecks: opt.no_policy_check = 1; break; case oEnablePolicyChecks: opt.no_policy_check = 0; break; case oAutoIssuerKeyRetrieve: opt.auto_issuer_key_retrieve = 1; break; case oOutput: opt.outfile = pargs.r.ret_str; break; case oQuiet: opt.quiet = 1; break; case oNoTTY: /* fixme:tty_no_terminal(1);*/ break; case oDryRun: opt.dry_run = 1; break; case oVerbose: opt.verbose++; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); break; case oNoVerbose: opt.verbose = 0; gcry_control (GCRYCTL_SET_VERBOSITY, (int)opt.verbose); break; case oLogFile: logfile = pargs.r.ret_str; break; case oNoLogFile: logfile = NULL; break; case oAuditLog: auditlog = pargs.r.ret_str; break; case oHtmlAuditLog: htmlauditlog = pargs.r.ret_str; break; case oBatch: opt.batch = 1; greeting = 0; break; case oNoBatch: opt.batch = 0; break; case oAnswerYes: opt.answer_yes = 1; break; case oAnswerNo: opt.answer_no = 1; break; case oKeyring: append_to_strlist (&nrings, pargs.r.ret_str); break; case oUseKeyboxd: opt.use_keyboxd = 1; break; case oDebug: if (parse_debug_flag (pargs.r.ret_str, &debug_value, debug_flags)) { pargs.r_opt = ARGPARSE_INVALID_ARG; pargs.err = ARGPARSE_PRINT_ERROR; } break; case oDebugAll: debug_value = ~0; break; case oDebugNone: debug_value = 0; break; case oDebugLevel: debug_level = pargs.r.ret_str; break; case oDebugWait: debug_wait = pargs.r.ret_int; break; case oDebugAllowCoreDump: may_coredump = enable_core_dumps (); break; case oDebugNoChainValidation: opt.no_chain_validation = 1; break; case oDebugIgnoreExpiration: opt.ignore_expiration = 1; break; case oDebugForceECDHSHA1KDF: opt.force_ecdh_sha1kdf = 1; break; case oStatusFD: ctrl.status_fd = translate_sys2libc_fd_int (pargs.r.ret_int, 1); break; case oLoggerFD: log_set_fd (translate_sys2libc_fd_int (pargs.r.ret_int, 1)); break; case oWithMD5Fingerprint: opt.with_md5_fingerprint=1; /*fall through*/ case oWithFingerprint: with_fpr=1; /*fall through*/ case aFingerprint: opt.fingerprint++; break; case oWithKeygrip: opt.with_keygrip = 1; break; case oWithKeyScreening: opt.with_key_screening = 1; break; case oHomedir: gnupg_set_homedir (pargs.r.ret_str); break; case oChUid: break; /* Command line only (see above). */ case oAgentProgram: opt.agent_program = pargs.r.ret_str; break; case oKeyboxdProgram: opt.keyboxd_program = pargs.r.ret_str; break; case oDisplay: set_opt_session_env ("DISPLAY", pargs.r.ret_str); break; case oTTYname: set_opt_session_env ("GPG_TTY", pargs.r.ret_str); break; case oTTYtype: set_opt_session_env ("TERM", pargs.r.ret_str); break; case oXauthority: set_opt_session_env ("XAUTHORITY", pargs.r.ret_str); break; case oLCctype: opt.lc_ctype = xstrdup (pargs.r.ret_str); break; case oLCmessages: opt.lc_messages = xstrdup (pargs.r.ret_str); break; case oDirmngrProgram: opt.dirmngr_program = pargs.r.ret_str; break; case oDisableDirmngr: opt.disable_dirmngr = 1; break; case oPreferSystemDirmngr: /* Obsolete */; break; case oProtectToolProgram: opt.protect_tool_program = pargs.r.ret_str; break; case oFakedSystemTime: { time_t faked_time = isotime2epoch (pargs.r.ret_str); if (faked_time == (time_t)(-1)) faked_time = (time_t)strtoul (pargs.r.ret_str, NULL, 10); gnupg_set_time (faked_time, 0); } break; case oNoDefKeyring: default_keyring = 0; break; case oNoGreeting: nogreeting = 1; break; case oDefaultKey: if (*pargs.r.ret_str) { xfree (opt.local_user); opt.local_user = xstrdup (pargs.r.ret_str); } break; case oDefRecipient: if (*pargs.r.ret_str) opt.def_recipient = xstrdup (pargs.r.ret_str); break; case oDefRecipientSelf: xfree (opt.def_recipient); opt.def_recipient = NULL; opt.def_recipient_self = 1; break; case oNoDefRecipient: xfree (opt.def_recipient); opt.def_recipient = NULL; opt.def_recipient_self = 0; break; case oWithKeyData: opt.with_key_data=1; /* fall through */ case oWithColons: ctrl.with_colons = 1; break; case oWithSecret: ctrl.with_secret = 1; break; case oWithValidation: ctrl.with_validation=1; break; case oWithEphemeralKeys: ctrl.with_ephemeral_keys=1; break; case oSkipVerify: opt.skip_verify=1; break; case oNoEncryptTo: opt.no_encrypt_to = 1; break; case oEncryptTo: /* Store the recipient in the second list */ sl = add_to_strlist (&remusr, pargs.r.ret_str); sl->flags = 1; break; case oRecipient: /* store the recipient */ add_to_strlist ( &remusr, pargs.r.ret_str); break; case oUser: /* Store the local users, the first one is the default */ if (!opt.local_user) opt.local_user = xstrdup (pargs.r.ret_str); add_to_strlist (&locusr, pargs.r.ret_str); break; case oNoSecmemWarn: gcry_control (GCRYCTL_DISABLE_SECMEM_WARN); break; case oCipherAlgo: opt.def_cipher_algoid = pargs.r.ret_str; break; case oDisableCipherAlgo: { int algo = gcry_cipher_map_name (pargs.r.ret_str); gcry_cipher_ctl (NULL, GCRYCTL_DISABLE_ALGO, &algo, sizeof algo); } break; case oDisablePubkeyAlgo: { int algo = gcry_pk_map_name (pargs.r.ret_str); gcry_pk_ctl (GCRYCTL_DISABLE_ALGO,&algo, sizeof algo ); } break; case oDigestAlgo: forced_digest_algo = pargs.r.ret_str; break; case oExtraDigestAlgo: extra_digest_algo = pargs.r.ret_str; break; case oIgnoreTimeConflict: opt.ignore_time_conflict = 1; break; case oNoRandomSeedFile: use_random_seed = 0; break; case oNoCommonCertsImport: no_common_certs_import = 1; break; case oEnableSpecialFilenames: enable_special_filenames (); break; case oValidationModel: parse_validation_model (pargs.r.ret_str); break; case oKeyServer: { struct keyserver_spec *keyserver; keyserver = parse_keyserver_line (pargs.r.ret_str, configname, pargs.lineno); if (! keyserver) log_error (_("could not parse keyserver\n")); else { /* FIXME: Keep last next pointer. */ struct keyserver_spec **next_p = &opt.keyserver; while (*next_p) next_p = &(*next_p)->next; *next_p = keyserver; } } break; case oIgnoreCertExtension: add_to_strlist (&opt.ignored_cert_extensions, pargs.r.ret_str); break; case oAuthenticode: opt.authenticode = 1; break; case oAttribute: add_to_strlist (&opt.attributes, pargs.r.ret_str); break; case oNoAutostart: opt.autostart = 0; break; case oCompliance: { struct gnupg_compliance_option compliance_options[] = { { "gnupg", CO_GNUPG }, { "de-vs", CO_DE_VS } }; int compliance = gnupg_parse_compliance_option (pargs.r.ret_str, compliance_options, DIM (compliance_options), opt.quiet); if (compliance < 0) log_inc_errorcount (); /* Force later termination. */ opt.compliance = compliance; } break; default: if (configname) pargs.err = ARGPARSE_PRINT_WARNING; else { pargs.err = ARGPARSE_PRINT_ERROR; /* The argparse function calls a plain exit and thus we * need to print a status here. */ gpgsm_status_with_error (&ctrl, STATUS_FAILURE, "option-parser", gpg_error (GPG_ERR_GENERAL)); } break; } } gpgrt_argparse (NULL, &pargs, NULL); /* Release internal state. */ if (!last_configname) opt.config_filename = gpgrt_fnameconcat (gnupg_homedir (), GPGSM_NAME EXTSEP_S "conf", NULL); else opt.config_filename = last_configname; if (log_get_errorcount(0)) { gpgsm_status_with_error (&ctrl, STATUS_FAILURE, "option-parser", gpg_error (GPG_ERR_GENERAL)); gpgsm_exit(2); } if (pwfd != -1) /* Read the passphrase now. */ read_passphrase_from_fd (pwfd); /* Now that we have the options parsed we need to update the default control structure. */ gpgsm_init_default_ctrl (&ctrl); if (nogreeting) greeting = 0; if (greeting) { es_fprintf (es_stderr, "%s %s; %s\n", gpgrt_strusage(11), gpgrt_strusage(13), gpgrt_strusage(14) ); es_fprintf (es_stderr, "%s\n", gpgrt_strusage(15) ); } # ifdef IS_DEVELOPMENT_VERSION if (!opt.batch) { log_info ("NOTE: THIS IS A DEVELOPMENT VERSION!\n"); log_info ("It is only intended for test purposes and should NOT be\n"); log_info ("used in a production environment or with production keys!\n"); } # endif if (may_coredump && !opt.quiet) log_info (_("WARNING: program may create a core file!\n")); /* if (opt.qualsig_approval && !opt.quiet) */ /* log_info (_("This software has officially been approved to " */ /* "create and verify\n" */ /* "qualified signatures according to German law.\n")); */ if (logfile && cmd == aServer) { log_set_file (logfile); log_set_prefix (NULL, GPGRT_LOG_WITH_PREFIX | GPGRT_LOG_WITH_TIME | GPGRT_LOG_WITH_PID); } if (gnupg_faked_time_p ()) { gnupg_isotime_t tbuf; log_info (_("WARNING: running with faked system time: ")); gnupg_get_isotime (tbuf); dump_isotime (tbuf); log_printf ("\n"); } /* Print a warning if an argument looks like an option. */ if (!opt.quiet && !(pargs.flags & ARGPARSE_FLAG_STOP_SEEN)) { int i; for (i=0; i < argc; i++) if (argv[i][0] == '-' && argv[i][1] == '-') log_info (_("Note: '%s' is not considered an option\n"), argv[i]); } /*FIXME if (opt.batch) */ /* tty_batchmode (1); */ gcry_control (GCRYCTL_RESUME_SECMEM_WARN); set_debug (); /* Although we always use gpgsm_exit, we better install a regular exit handler so that at least the secure memory gets wiped out. */ if (atexit (emergency_cleanup)) { log_error ("atexit failed\n"); gpgsm_exit (2); } /* Must do this after dropping setuid, because the mapping functions may try to load an module and we may have disabled an algorithm. We remap the commonly used algorithms to the OIDs for convenience. We need to work with the OIDs because they are used to check whether the encryption mode is actually available. */ if (!strcmp (opt.def_cipher_algoid, "3DES") ) opt.def_cipher_algoid = "1.2.840.113549.3.7"; else if (!strcmp (opt.def_cipher_algoid, "AES") || !strcmp (opt.def_cipher_algoid, "AES128")) opt.def_cipher_algoid = "2.16.840.1.101.3.4.1.2"; else if (!strcmp (opt.def_cipher_algoid, "AES192") ) opt.def_cipher_algoid = "2.16.840.1.101.3.4.1.22"; else if (!strcmp (opt.def_cipher_algoid, "AES256") ) opt.def_cipher_algoid = "2.16.840.1.101.3.4.1.42"; else if (!strcmp (opt.def_cipher_algoid, "SERPENT") || !strcmp (opt.def_cipher_algoid, "SERPENT128") ) opt.def_cipher_algoid = "1.3.6.1.4.1.11591.13.2.2"; else if (!strcmp (opt.def_cipher_algoid, "SERPENT192") ) opt.def_cipher_algoid = "1.3.6.1.4.1.11591.13.2.22"; else if (!strcmp (opt.def_cipher_algoid, "SERPENT256") ) opt.def_cipher_algoid = "1.3.6.1.4.1.11591.13.2.42"; else if (!strcmp (opt.def_cipher_algoid, "SEED") ) opt.def_cipher_algoid = "1.2.410.200004.1.4"; else if (!strcmp (opt.def_cipher_algoid, "CAMELLIA") || !strcmp (opt.def_cipher_algoid, "CAMELLIA128") ) opt.def_cipher_algoid = "1.2.392.200011.61.1.1.1.2"; else if (!strcmp (opt.def_cipher_algoid, "CAMELLIA192") ) opt.def_cipher_algoid = "1.2.392.200011.61.1.1.1.3"; else if (!strcmp (opt.def_cipher_algoid, "CAMELLIA256") ) opt.def_cipher_algoid = "1.2.392.200011.61.1.1.1.4"; if (cmd != aGPGConfList) { if ( !gcry_cipher_map_name (opt.def_cipher_algoid) || !gcry_cipher_mode_from_oid (opt.def_cipher_algoid)) log_error (_("selected cipher algorithm is invalid\n")); if (forced_digest_algo) { opt.forced_digest_algo = gcry_md_map_name (forced_digest_algo); if (our_md_test_algo(opt.forced_digest_algo) ) log_error (_("selected digest algorithm is invalid\n")); } if (extra_digest_algo) { opt.extra_digest_algo = gcry_md_map_name (extra_digest_algo); if (our_md_test_algo (opt.extra_digest_algo) ) log_error (_("selected digest algorithm is invalid\n")); } } /* Check our chosen algorithms against the list of allowed * algorithms in the current compliance mode, and fail hard if it is * not. This is us being nice to the user informing her early that * the chosen algorithms are not available. We also check and * enforce this right before the actual operation. */ if (! gnupg_cipher_is_allowed (opt.compliance, cmd == aEncr || cmd == aSignEncr, gcry_cipher_map_name (opt.def_cipher_algoid), GCRY_CIPHER_MODE_NONE) && ! gnupg_cipher_is_allowed (opt.compliance, cmd == aEncr || cmd == aSignEncr, gcry_cipher_mode_from_oid (opt.def_cipher_algoid), GCRY_CIPHER_MODE_NONE)) log_error (_("cipher algorithm '%s' may not be used in %s mode\n"), opt.def_cipher_algoid, gnupg_compliance_option_string (opt.compliance)); if (forced_digest_algo && ! gnupg_digest_is_allowed (opt.compliance, cmd == aSign || cmd == aSignEncr || cmd == aClearsign, opt.forced_digest_algo)) log_error (_("digest algorithm '%s' may not be used in %s mode\n"), forced_digest_algo, gnupg_compliance_option_string (opt.compliance)); if (extra_digest_algo && ! gnupg_digest_is_allowed (opt.compliance, cmd == aSign || cmd == aSignEncr || cmd == aClearsign, opt.extra_digest_algo)) log_error (_("digest algorithm '%s' may not be used in %s mode\n"), extra_digest_algo, gnupg_compliance_option_string (opt.compliance)); if (log_get_errorcount(0)) { gpgsm_status_with_error (&ctrl, STATUS_FAILURE, "option-postprocessing", gpg_error (GPG_ERR_GENERAL)); gpgsm_exit (2); } /* Set the random seed file. */ if (use_random_seed) { char *p = make_filename (gnupg_homedir (), "random_seed", NULL); gcry_control (GCRYCTL_SET_RANDOM_SEED_FILE, p); xfree(p); } if (!cmd && opt.fingerprint && !with_fpr) set_cmd (&cmd, aListKeys); /* If no pinentry is expected shunt * gnupg_allow_set_foregound_window to avoid useless error * messages on Windows. */ if (opt.pinentry_mode != PINENTRY_MODE_ASK) { gnupg_inhibit_set_foregound_window (1); } /* Add default keybox. */ if (!nrings && default_keyring && !opt.use_keyboxd) { int created; keydb_add_resource (&ctrl, "pubring.kbx", 0, &created); if (created && !no_common_certs_import) { /* Import the standard certificates for a new default keybox. */ char *filelist[2]; filelist[0] = make_filename (gnupg_datadir (),"com-certs.pem", NULL); filelist[1] = NULL; if (!gnupg_access (filelist[0], F_OK)) { log_info (_("importing common certificates '%s'\n"), filelist[0]); gpgsm_import_files (&ctrl, 1, filelist, open_read); } xfree (filelist[0]); } } if (!opt.use_keyboxd) { for (sl = nrings; sl; sl = sl->next) keydb_add_resource (&ctrl, sl->d, 0, NULL); } FREE_STRLIST(nrings); /* Prepare the audit log feature for certain commands. */ if (auditlog || htmlauditlog) { switch (cmd) { case aEncr: case aSign: case aDecrypt: case aVerify: audit_release (ctrl.audit); ctrl.audit = audit_new (); if (auditlog) auditfp = open_es_fwrite (auditlog); if (htmlauditlog) htmlauditfp = open_es_fwrite (htmlauditlog); break; default: break; } } if (!do_not_setup_keys) { int errcount = log_get_errorcount (0); for (sl = locusr; sl ; sl = sl->next) { int rc = gpgsm_add_to_certlist (&ctrl, sl->d, 1, &signerlist, 0); if (rc) { log_error (_("can't sign using '%s': %s\n"), sl->d, gpg_strerror (rc)); gpgsm_status2 (&ctrl, STATUS_INV_SGNR, get_inv_recpsgnr_code (rc), sl->d, NULL); gpgsm_status2 (&ctrl, STATUS_INV_RECP, get_inv_recpsgnr_code (rc), sl->d, NULL); } } /* Build the recipient list. We first add the regular ones and then the encrypt-to ones because the underlying function will silently ignore duplicates and we can't allow keeping a duplicate which is flagged as encrypt-to as the actually encrypt function would then complain about no (regular) recipients. */ for (sl = remusr; sl; sl = sl->next) if (!(sl->flags & 1)) do_add_recipient (&ctrl, sl->d, &recplist, 0, recp_required); if (!opt.no_encrypt_to) { for (sl = remusr; sl; sl = sl->next) if ((sl->flags & 1)) do_add_recipient (&ctrl, sl->d, &recplist, 1, recp_required); } /* We do not require a recipient for decryption but because * recipients and signers are always checked and log_error is * sometimes used (for failed signing keys or due to a failed * CRL checking) that would have bumbed up the error counter. * We clear the counter in the decryption case because there is * no reason to force decryption to fail. */ if (cmd == aDecrypt && !errcount) log_get_errorcount (1); /* clear counter */ } if (log_get_errorcount(0)) gpgsm_exit(1); /* Must stop for invalid recipients. */ /* Dispatch command. */ switch (cmd) { case aGPGConfList: { /* List default option values in the GPG Conf format. */ es_printf ("debug-level:%lu:\"none:\n", GC_OPT_FLAG_DEFAULT); es_printf ("include-certs:%lu:%d:\n", GC_OPT_FLAG_DEFAULT, DEFAULT_INCLUDE_CERTS); es_printf ("cipher-algo:%lu:\"%s:\n", GC_OPT_FLAG_DEFAULT, DEFAULT_CIPHER_ALGO); es_printf ("p12-charset:%lu:\n", GC_OPT_FLAG_DEFAULT); es_printf ("default-key:%lu:\n", GC_OPT_FLAG_DEFAULT); es_printf ("encrypt-to:%lu:\n", GC_OPT_FLAG_DEFAULT); /* The next one is an info only item and should match what proc_parameters actually implements. */ es_printf ("default_pubkey_algo:%lu:\"%s:\n", GC_OPT_FLAG_DEFAULT, "RSA-3072"); } break; case aGPGConfTest: /* This is merely a dummy command to test whether the configuration file is valid. */ break; case aServer: if (debug_wait) { log_debug ("waiting for debugger - my pid is %u .....\n", (unsigned int)getpid()); gnupg_sleep (debug_wait); log_debug ("... okay\n"); } gpgsm_server (recplist); break; case aCallDirmngr: if (!argc) wrong_args ("--call-dirmngr {args}"); else if (gpgsm_dirmngr_run_command (&ctrl, *argv, argc-1, argv+1)) gpgsm_exit (1); break; case aCallProtectTool: run_protect_tool (argc, argv); break; case aEncr: /* Encrypt the given file. */ { estream_t fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); set_binary (stdin); if (!argc) /* Source is stdin. */ err = gpgsm_encrypt (&ctrl, recplist, 0, fp); else if (argc == 1) /* Source is the given file. */ err = gpgsm_encrypt (&ctrl, recplist, open_read (*argv), fp); else wrong_args ("--encrypt [datafile]"); #if GPGRT_VERSION_NUMBER >= 0x012700 /* >= 1.39 */ if (err) gpgrt_fcancel (fp); else es_fclose (fp); #else (void)err; es_fclose (fp); #endif } break; case aSign: /* Sign the given file. */ { estream_t fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); /* Fixme: We should also allow concatenation of multiple files for signing because that is what gpg does.*/ set_binary (stdin); if (!argc) /* Create from stdin. */ err = gpgsm_sign (&ctrl, signerlist, 0, detached_sig, fp); else if (argc == 1) /* From file. */ err = gpgsm_sign (&ctrl, signerlist, open_read (*argv), detached_sig, fp); else wrong_args ("--sign [datafile]"); #if GPGRT_VERSION_NUMBER >= 0x012700 /* >= 1.39 */ if (err) gpgrt_fcancel (fp); else es_fclose (fp); #else (void)err; es_fclose (fp); #endif } break; case aSignEncr: /* sign and encrypt the given file */ log_error ("this command has not yet been implemented\n"); break; case aClearsign: /* make a clearsig */ log_error ("this command has not yet been implemented\n"); break; case aVerify: { estream_t fp = NULL; set_binary (stdin); if (argc == 2 && opt.outfile) log_info ("option --output ignored for a detached signature\n"); else if (opt.outfile) fp = open_es_fwrite (opt.outfile); if (!argc) gpgsm_verify (&ctrl, 0, -1, fp); /* normal signature from stdin */ else if (argc == 1) gpgsm_verify (&ctrl, open_read (*argv), -1, fp); /* std signature */ else if (argc == 2) /* detached signature (sig, detached) */ gpgsm_verify (&ctrl, open_read (*argv), open_read (argv[1]), NULL); else wrong_args ("--verify [signature [detached_data]]"); es_fclose (fp); } break; case aDecrypt: { estream_t fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); set_binary (stdin); if (!argc) gpgsm_decrypt (&ctrl, 0, fp); /* from stdin */ else if (argc == 1) gpgsm_decrypt (&ctrl, open_read (*argv), fp); /* from file */ else wrong_args ("--decrypt [filename]"); es_fclose (fp); } break; case aDeleteKey: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_delete (&ctrl, sl); free_strlist(sl); break; case aListChain: case aDumpChain: ctrl.with_chain = 1; /* fall through */ case aListKeys: case aDumpKeys: case aListExternalKeys: case aDumpExternalKeys: case aListSecretKeys: case aDumpSecretKeys: { unsigned int mode; estream_t fp; switch (cmd) { case aListChain: case aListKeys: mode = (0 | 0 | (1<<6)); break; case aDumpChain: case aDumpKeys: mode = (256 | 0 | (1<<6)); break; case aListExternalKeys: mode = (0 | 0 | (1<<7)); break; case aDumpExternalKeys: mode = (256 | 0 | (1<<7)); break; case aListSecretKeys: mode = (0 | 2 | (1<<6)); break; case aDumpSecretKeys: mode = (256 | 2 | (1<<6)); break; default: BUG(); } fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_list_keys (&ctrl, sl, fp, mode); free_strlist(sl); es_fclose (fp); } break; case aKeygen: /* Generate a key; well kind of. */ { estream_t fpin = NULL; estream_t fpout; if (opt.batch) { if (!argc) /* Create from stdin. */ fpin = open_es_fread ("-", "r"); else if (argc == 1) /* From file. */ fpin = open_es_fread (*argv, "r"); else wrong_args ("--generate-key --batch [parmfile]"); } fpout = open_es_fwrite (opt.outfile?opt.outfile:"-"); if (fpin) gpgsm_genkey (&ctrl, fpin, fpout); else gpgsm_gencertreq_tty (&ctrl, fpout); es_fclose (fpout); } break; case aImport: gpgsm_import_files (&ctrl, argc, argv, open_read); break; case aExport: { estream_t fp; fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); gpgsm_export (&ctrl, sl, fp); free_strlist(sl); es_fclose (fp); } break; case aExportSecretKeyP12: { estream_t fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); if (argc == 1) gpgsm_p12_export (&ctrl, *argv, fp, 0); else wrong_args ("--export-secret-key-p12 KEY-ID"); if (fp != es_stdout) es_fclose (fp); } break; case aExportSecretKeyP8: { estream_t fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); if (argc == 1) gpgsm_p12_export (&ctrl, *argv, fp, 1); else wrong_args ("--export-secret-key-p8 KEY-ID"); if (fp != es_stdout) es_fclose (fp); } break; case aExportSecretKeyRaw: { estream_t fp = open_es_fwrite (opt.outfile?opt.outfile:"-"); if (argc == 1) gpgsm_p12_export (&ctrl, *argv, fp, 2); else wrong_args ("--export-secret-key-raw KEY-ID"); if (fp != es_stdout) es_fclose (fp); } break; case aSendKeys: case aRecvKeys: log_error ("this command has not yet been implemented\n"); break; case aLearnCard: if (argc) wrong_args ("--learn-card"); else { int rc = gpgsm_agent_learn (&ctrl); if (rc) log_error ("error learning card: %s\n", gpg_strerror (rc)); } break; case aPasswd: if (argc != 1) wrong_args ("--change-passphrase "); else { int rc; ksba_cert_t cert = NULL; char *grip = NULL; rc = gpgsm_find_cert (&ctrl, *argv, NULL, &cert, 0); if (rc) ; else if (!(grip = gpgsm_get_keygrip_hexstring (cert))) rc = gpg_error (GPG_ERR_BUG); else { char *desc = gpgsm_format_keydesc (cert); rc = gpgsm_agent_passwd (&ctrl, grip, desc); xfree (desc); } if (rc) log_error ("error changing passphrase: %s\n", gpg_strerror (rc)); xfree (grip); ksba_cert_release (cert); } break; case aKeydbClearSomeCertFlags: for (sl=NULL; argc; argc--, argv++) add_to_strlist (&sl, *argv); keydb_clear_some_cert_flags (&ctrl, sl); free_strlist(sl); break; default: log_error (_("invalid command (there is no implicit command)\n")); break; } /* Print the audit result if needed. */ if ((auditlog && auditfp) || (htmlauditlog && htmlauditfp)) { if (auditlog && auditfp) audit_print_result (ctrl.audit, auditfp, 0); if (htmlauditlog && htmlauditfp) audit_print_result (ctrl.audit, htmlauditfp, 1); audit_release (ctrl.audit); ctrl.audit = NULL; es_fclose (auditfp); es_fclose (htmlauditfp); } /* cleanup */ gpgsm_deinit_default_ctrl (&ctrl); keyserver_list_free (opt.keyserver); opt.keyserver = NULL; gpgsm_release_certlist (recplist); gpgsm_release_certlist (signerlist); FREE_STRLIST (remusr); FREE_STRLIST (locusr); gpgsm_exit(0); return 8; /*NOTREACHED*/ } /* Note: This function is used by signal handlers!. */ static void emergency_cleanup (void) { gcry_control (GCRYCTL_TERM_SECMEM ); } void gpgsm_exit (int rc) { gcry_control (GCRYCTL_UPDATE_RANDOM_SEED_FILE); if (opt.debug & DBG_MEMSTAT_VALUE) { gcry_control( GCRYCTL_DUMP_MEMORY_STATS ); gcry_control( GCRYCTL_DUMP_RANDOM_STATS ); } if (opt.debug) gcry_control (GCRYCTL_DUMP_SECMEM_STATS ); emergency_cleanup (); rc = rc? rc : log_get_errorcount(0)? 2 : gpgsm_errors_seen? 1 : 0; exit (rc); } void gpgsm_init_default_ctrl (struct server_control_s *ctrl) { ctrl->include_certs = default_include_certs; ctrl->use_ocsp = opt.enable_ocsp; ctrl->validation_model = default_validation_model; ctrl->offline = opt.disable_dirmngr; } /* This function is called to deinitialize a control object. The * control object is is not released, though. */ void gpgsm_deinit_default_ctrl (ctrl_t ctrl) { gpgsm_keydb_deinit_session_data (ctrl); } int gpgsm_parse_validation_model (const char *model) { if (!ascii_strcasecmp (model, "shell") ) return 0; else if ( !ascii_strcasecmp (model, "chain") ) return 1; else if ( !ascii_strcasecmp (model, "steed") ) return 2; else return -1; } /* Open the FILENAME for read and return the file descriptor. Stop with an error message in case of problems. "-" denotes stdin and if special filenames are allowed the given fd is opened instead. */ static int open_read (const char *filename) { int fd; if (filename[0] == '-' && !filename[1]) { set_binary (stdin); return 0; /* stdin */ } fd = check_special_filename (filename, 0, 0); if (fd != -1) return fd; - fd = open (filename, O_RDONLY | O_BINARY); + fd = gnupg_open (filename, O_RDONLY | O_BINARY, 0); if (fd == -1) { log_error (_("can't open '%s': %s\n"), filename, strerror (errno)); gpgsm_exit (2); } return fd; } /* Same as open_read but return an estream_t. */ static estream_t open_es_fread (const char *filename, const char *mode) { int fd; estream_t fp; if (filename[0] == '-' && !filename[1]) fd = fileno (stdin); else fd = check_special_filename (filename, 0, 0); if (fd != -1) { fp = es_fdopen_nc (fd, mode); if (!fp) { log_error ("es_fdopen(%d) failed: %s\n", fd, strerror (errno)); gpgsm_exit (2); } return fp; } fp = es_fopen (filename, mode); if (!fp) { log_error (_("can't open '%s': %s\n"), filename, strerror (errno)); gpgsm_exit (2); } return fp; } /* Open FILENAME for fwrite and return an extended stream. Stop with an error message in case of problems. "-" denotes stdout and if special filenames are allowed the given fd is opened instead. Caller must close the returned stream. */ static estream_t open_es_fwrite (const char *filename) { int fd; estream_t fp; if (filename[0] == '-' && !filename[1]) { fflush (stdout); fp = es_fdopen_nc (fileno(stdout), "wb"); return fp; } fd = check_special_filename (filename, 1, 0); if (fd != -1) { fp = es_fdopen_nc (fd, "wb"); if (!fp) { log_error ("es_fdopen(%d) failed: %s\n", fd, strerror (errno)); gpgsm_exit (2); } return fp; } fp = es_fopen (filename, "wb"); if (!fp) { log_error (_("can't open '%s': %s\n"), filename, strerror (errno)); gpgsm_exit (2); } return fp; } static void run_protect_tool (int argc, char **argv) { #ifdef HAVE_W32_SYSTEM (void)argc; (void)argv; #else const char *pgm; char **av; int i; if (!opt.protect_tool_program || !*opt.protect_tool_program) pgm = gnupg_module_name (GNUPG_MODULE_NAME_PROTECT_TOOL); else pgm = opt.protect_tool_program; av = xcalloc (argc+2, sizeof *av); av[0] = strrchr (pgm, '/'); if (!av[0]) av[0] = xstrdup (pgm); for (i=1; argc; i++, argc--, argv++) av[i] = *argv; av[i] = NULL; execv (pgm, av); log_error ("error executing '%s': %s\n", pgm, strerror (errno)); #endif /*!HAVE_W32_SYSTEM*/ gpgsm_exit (2); } diff --git a/tools/gpgconf-comp.c b/tools/gpgconf-comp.c index 5efe6e50a..26f213666 100644 --- a/tools/gpgconf-comp.c +++ b/tools/gpgconf-comp.c @@ -1,3400 +1,3401 @@ /* gpgconf-comp.c - Configuration utility for GnuPG. * Copyright (C) 2004, 2007-2011 Free Software Foundation, Inc. * Copyright (C) 2016 Werner Koch * Copyright (C) 2020 g10 Code GmbH * * This file is part of GnuPG. * * GnuPG is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * GnuPG is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GnuPG; if not, see . */ #if HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #ifdef HAVE_SIGNAL_H # include #endif #include #ifdef HAVE_W32_SYSTEM # define WIN32_LEAN_AND_MEAN 1 # include #else # include # include #endif #include "../common/util.h" #include "../common/i18n.h" #include "../common/exechelp.h" #include "../common/sysutils.h" #include "../common/status.h" #include "../common/gc-opt-flags.h" #include "gpgconf.h" #if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )) void gc_error (int status, int errnum, const char *fmt, ...) \ __attribute__ ((format (printf, 3, 4))); #endif /* Output a diagnostic message. If ERRNUM is not 0, then the output is followed by a colon, a white space, and the error string for the error number ERRNUM. In any case the output is finished by a newline. The message is prepended by the program name, a colon, and a whitespace. The output may be further formatted or redirected by the jnlib logging facility. */ void gc_error (int status, int errnum, const char *fmt, ...) { va_list arg_ptr; va_start (arg_ptr, fmt); log_logv (GPGRT_LOGLVL_ERROR, fmt, arg_ptr); va_end (arg_ptr); if (errnum) log_printf (": %s\n", strerror (errnum)); else log_printf ("\n"); if (status) { log_printf (NULL); log_printf ("fatal error (exit status %i)\n", status); gpgconf_failure (gpg_error_from_errno (errnum)); } } /* Forward declaration. */ static void gpg_agent_runtime_change (int killflag); static void scdaemon_runtime_change (int killflag); static void dirmngr_runtime_change (int killflag); static void keyboxd_runtime_change (int killflag); /* STRING_ARRAY is a malloced array with malloced strings. It is used * a space to store strings so that other objects may point to these * strings. It shall never be shrinked or any items changes. * STRING_ARRAY itself may be reallocated to increase the size of the * table. STRING_ARRAY_USED is the number of items currently used, * STRING_ARRAY_SIZE is the number of calloced slots. */ static char **string_array; static size_t string_array_used; static size_t string_array_size; /* Option configuration. */ /* An option might take an argument, or not. Argument types can be basic or complex. Basic types are generic and easy to validate. Complex types provide more specific information about the intended use, but can be difficult to validate. If you add to this enum, don't forget to update GC_ARG_TYPE below. YOU MUST NOT CHANGE THE NUMBERS OF THE EXISTING ENTRIES, AS THEY ARE PART OF THE EXTERNAL INTERFACE. */ typedef enum { /* Basic argument types. */ /* No argument. */ GC_ARG_TYPE_NONE = 0, /* A String argument. */ GC_ARG_TYPE_STRING = 1, /* A signed integer argument. */ GC_ARG_TYPE_INT32 = 2, /* An unsigned integer argument. */ GC_ARG_TYPE_UINT32 = 3, /* ADD NEW BASIC TYPE ENTRIES HERE. */ /* Complex argument types. */ /* A complete filename. */ GC_ARG_TYPE_FILENAME = 32, /* An LDAP server in the format HOSTNAME:PORT:USERNAME:PASSWORD:BASE_DN. */ GC_ARG_TYPE_LDAP_SERVER = 33, /* A 40 character fingerprint. */ GC_ARG_TYPE_KEY_FPR = 34, /* A user ID or key ID or fingerprint for a certificate. */ GC_ARG_TYPE_PUB_KEY = 35, /* A user ID or key ID or fingerprint for a certificate with a key. */ GC_ARG_TYPE_SEC_KEY = 36, /* A alias list made up of a key, an equal sign and a space separated list of values. */ GC_ARG_TYPE_ALIAS_LIST = 37, /* ADD NEW COMPLEX TYPE ENTRIES HERE. */ /* The number of the above entries. */ GC_ARG_TYPE_NR } gc_arg_type_t; /* For every argument, we record some information about it in the following struct. */ static const struct { /* For every argument type exists a basic argument type that can be used as a fallback for input and validation purposes. */ gc_arg_type_t fallback; /* Human-readable name of the type. */ const char *name; } gc_arg_type[GC_ARG_TYPE_NR] = { /* The basic argument types have their own types as fallback. */ { GC_ARG_TYPE_NONE, "none" }, { GC_ARG_TYPE_STRING, "string" }, { GC_ARG_TYPE_INT32, "int32" }, { GC_ARG_TYPE_UINT32, "uint32" }, /* Reserved basic type entries for future extension. */ { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, { GC_ARG_TYPE_NR, NULL }, /* The complex argument types have a basic type as fallback. */ { GC_ARG_TYPE_STRING, "filename" }, { GC_ARG_TYPE_STRING, "ldap server" }, { GC_ARG_TYPE_STRING, "key fpr" }, { GC_ARG_TYPE_STRING, "pub key" }, { GC_ARG_TYPE_STRING, "sec key" }, { GC_ARG_TYPE_STRING, "alias list" }, }; /* Every option has an associated expert level, than can be used to hide advanced and expert options from beginners. If you add to this list, don't forget to update GC_LEVEL below. YOU MUST NOT CHANGE THE NUMBERS OF THE EXISTING ENTRIES, AS THEY ARE PART OF THE EXTERNAL INTERFACE. */ typedef enum { /* The basic options should always be displayed. */ GC_LEVEL_BASIC, /* The advanced options may be hidden from beginners. */ GC_LEVEL_ADVANCED, /* The expert options should only be displayed to experts. */ GC_LEVEL_EXPERT, /* The invisible options should normally never be displayed. */ GC_LEVEL_INVISIBLE, /* The internal options are never exported, they mark options that are recorded for internal use only. */ GC_LEVEL_INTERNAL, /* ADD NEW ENTRIES HERE. */ /* The number of the above entries. */ GC_LEVEL_NR } gc_expert_level_t; /* A description for each expert level. */ static const struct { const char *name; } gc_level[] = { { "basic" }, { "advanced" }, { "expert" }, { "invisible" }, { "internal" } }; /* Option flags. The flags which are used by the components are defined by gc-opt-flags.h, included above. YOU MUST NOT CHANGE THE NUMBERS OF THE EXISTING FLAGS, AS THEY ARE PART OF THE EXTERNAL INTERFACE. */ /* Some entries in the emitted option list are not options, but mark the beginning of a new group of options. These entries have the GROUP flag set. Note that this is internally also known as a header line. */ #define GC_OPT_FLAG_GROUP (1UL << 0) /* The ARG_OPT flag for an option indicates that the argument is optional. This is never set for GC_ARG_TYPE_NONE options. */ #define GC_OPT_FLAG_ARG_OPT (1UL << 1) /* The LIST flag for an option indicates that the option can occur several times. A comma separated list of arguments is used as the argument value. */ #define GC_OPT_FLAG_LIST (1UL << 2) /* The RUNTIME flag for an option indicates that the option can be changed at runtime. */ #define GC_OPT_FLAG_RUNTIME (1UL << 3) /* A human-readable description for each flag. */ static const struct { const char *name; } gc_flag[] = { { "group" }, { "optional arg" }, { "list" }, { "runtime" }, { "default" }, { "default desc" }, { "no arg desc" }, { "no change" } }; /* Each option we want to support in gpgconf has the needed * information in a static list per componenet. This struct describes * the info for a single option. */ struct known_option_s { /* If this is NULL, then this is a terminator in an array of unknown * length. Otherwise it is the name of the option described by this * entry. The name must not contain a colon. */ const char *name; /* The option flags. */ unsigned long flags; /* The expert level. */ gc_expert_level_t level; /* The complex type of the option argument; the default of 0 is used * for a standard type as returned by --dump-option-table. */ gc_arg_type_t arg_type; }; typedef struct known_option_s known_option_t; /* The known options of the GC_COMPONENT_GPG_AGENT component. */ static known_option_t known_options_gpg_agent[] = { { "verbose", GC_OPT_FLAG_LIST|GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "quiet", GC_OPT_FLAG_NONE|GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "disable-scdaemon", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "enable-ssh-support", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "ssh-fingerprint-digest", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "enable-putty-support", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "enable-extended-key-format", GC_OPT_FLAG_RUNTIME, GC_LEVEL_INVISIBLE }, { "debug-level", GC_OPT_FLAG_ARG_OPT|GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED}, { "log-file", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED, /**/ GC_ARG_TYPE_FILENAME }, { "faked-system-time", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "default-cache-ttl", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "default-cache-ttl-ssh", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "max-cache-ttl", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "max-cache-ttl-ssh", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "ignore-cache-for-signing", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "allow-emacs-pinentry", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "grab", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "no-allow-external-cache", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "no-allow-mark-trusted", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "no-allow-loopback-pinentry", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "enforce-passphrase-constraints", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "min-passphrase-len", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "min-passphrase-nonalpha", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "check-passphrase-pattern", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT, /**/ GC_ARG_TYPE_FILENAME }, { "max-passphrase-days", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "enable-passphrase-history", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "pinentry-timeout", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { NULL } }; /* The known options of the GC_COMPONENT_SCDAEMON component. */ static known_option_t known_options_scdaemon[] = { { "verbose", GC_OPT_FLAG_LIST|GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "quiet", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "no-greeting", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "reader-port", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "ctapi-driver", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "pcsc-driver", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "disable-ccid", GC_OPT_FLAG_RUNTIME, GC_LEVEL_EXPERT }, { "disable-pinpad", GC_OPT_FLAG_NONE|GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "enable-pinpad-varlen", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "card-timeout", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { "application-priority", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED }, { "debug-level", GC_OPT_FLAG_ARG_OPT|GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED}, { "log-file", GC_OPT_FLAG_RUNTIME, GC_LEVEL_ADVANCED, GC_ARG_TYPE_FILENAME }, { "deny-admin", GC_OPT_FLAG_RUNTIME, GC_LEVEL_BASIC }, { NULL } }; /* The known options of the GC_COMPONENT_GPG component. */ static known_option_t known_options_gpg[] = { { "verbose", GC_OPT_FLAG_LIST, GC_LEVEL_BASIC }, { "quiet", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "no-greeting", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "default-key", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "encrypt-to", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "group", GC_OPT_FLAG_LIST, GC_LEVEL_ADVANCED, GC_ARG_TYPE_ALIAS_LIST}, { "compliance", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "default-new-key-algo", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "trust-model", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "debug-level", GC_OPT_FLAG_ARG_OPT, GC_LEVEL_ADVANCED }, { "log-file", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED, GC_ARG_TYPE_FILENAME }, { "auto-key-locate", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "auto-key-import", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "auto-key-retrieve", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "include-key-block", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "disable-dirmngr", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "max-cert-depth", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "completes-needed", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "marginals-needed", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, /* The next is a pseudo option which we read via --gpgconf-list */ { "default_pubkey_algo", (GC_OPT_FLAG_ARG_OPT|GC_OPT_FLAG_NO_CHANGE), GC_LEVEL_INVISIBLE }, { NULL } }; /* The known options of the GC_COMPONENT_GPGSM component. */ static known_option_t known_options_gpgsm[] = { { "verbose", GC_OPT_FLAG_LIST, GC_LEVEL_BASIC }, { "quiet", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "no-greeting", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "default-key", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "encrypt-to", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "disable-dirmngr", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "p12-charset", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "keyserver", GC_OPT_FLAG_LIST, GC_LEVEL_BASIC, GC_ARG_TYPE_LDAP_SERVER }, { "compliance", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "debug-level", GC_OPT_FLAG_ARG_OPT, GC_LEVEL_ADVANCED }, { "log-file", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED, GC_ARG_TYPE_FILENAME }, { "faked-system-time", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "disable-crl-checks", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "enable-crl-checks", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "enable-ocsp", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "include-certs", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "disable-policy-checks", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "auto-issuer-key-retrieve", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "cipher-algo", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "disable-trusted-cert-crl-check", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, /* Pseudo option follows. */ { "default_pubkey_algo", (GC_OPT_FLAG_ARG_OPT|GC_OPT_FLAG_NO_CHANGE), GC_LEVEL_INVISIBLE }, { NULL } }; /* The known options of the GC_COMPONENT_DIRMNGR component. */ static known_option_t known_options_dirmngr[] = { { "verbose", GC_OPT_FLAG_LIST, GC_LEVEL_BASIC }, { "quiet", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "no-greeting", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "resolver-timeout", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "nameserver", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "debug-level", GC_OPT_FLAG_ARG_OPT, GC_LEVEL_ADVANCED }, { "log-file", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED, GC_ARG_TYPE_FILENAME }, { "faked-system-time", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { "batch", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "force", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "use-tor", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "keyserver", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "disable-http", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "ignore-http-dp", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "http-proxy", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "honor-http-proxy", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "disable-ldap", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "ignore-ldap-dp", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "ldap-proxy", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "only-ldap-proxy", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "add-servers", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT }, { "ldaptimeout", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "max-replies", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "allow-ocsp", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "ocsp-responder", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "ocsp-signer", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { "allow-version-check", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "ignore-ocsp-service-url", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED }, { NULL } }; /* The known options of the GC_COMPONENT_KEYBOXD component. */ static known_option_t known_options_keyboxd[] = { { "verbose", GC_OPT_FLAG_LIST, GC_LEVEL_BASIC }, { "quiet", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC }, { "log-file", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED, GC_ARG_TYPE_FILENAME }, { "faked-system-time", GC_OPT_FLAG_NONE, GC_LEVEL_INVISIBLE }, { NULL } }; /* The known options of the GC_COMPONENT_PINENTRY component. */ static known_option_t known_options_pinentry[] = { { NULL } }; /* Our main option info object. We copy all required information from the * gpgrt_opt_t items but convert the flags value to bit flags. */ struct gc_option_s { const char *name; /* The same as gpgrt_opt_t.long_opt. */ const char *desc; /* The same as gpgrt_opt_t.description. */ unsigned int is_header:1; /* This is a header item. */ unsigned int is_list:1; /* This is a list style option. */ unsigned int opt_arg:1; /* The option's argument is optional. */ unsigned int runtime:1; /* The option is runtime changeable. */ unsigned int gpgconf_list:1; /* Mentioned by --gpgconf-list. */ unsigned int has_default:1; /* The option has a default value. */ unsigned int def_in_desc:1; /* The default is in the descrition. */ unsigned int no_arg_desc:1; /* The argument has a default ???. */ unsigned int no_change:1; /* User shall not change the option. */ unsigned int attr_ignore:1; /* The ARGPARSE_ATTR_IGNORE. */ unsigned int attr_force:1; /* The ARGPARSE_ATTR_FORCE. */ /* The expert level - copied from known_options. */ gc_expert_level_t level; /* The complex type - copied from known_options. */ gc_arg_type_t arg_type; /* The default value for this option. This is NULL if the option is not present in the component, the empty string if no default is available, and otherwise a quoted string. This is currently malloced.*/ char *default_value; /* The current value of this option. */ char *value; /* The new flags for this option. The only defined flag is actually GC_OPT_FLAG_DEFAULT, and it means that the option should be deleted. In this case, NEW_VALUE is NULL. */ unsigned long new_flags; /* The new value of this option. */ char *new_value; }; typedef struct gc_option_s gc_option_t; /* The information associated with each component. */ static struct { /* The name of the component. Some components don't have an * associated program, but are implemented directly by GPGConf. In * this case, PROGRAM is NULL. */ char *program; /* The displayed name of this component. Must not contain a colon * (':') character. */ const char *name; /* The gettext domain for the description DESC. If this is NULL, then the description is not translated. */ const char *desc_domain; /* The description of this component. */ const char *desc; /* The module name (GNUPG_MODULE_NAME_foo) as defined by * ../common/util.h. This value is used to get the actual installed * path of the program. 0 is used if no program for the component * is available. */ char module_name; /* The name for the configuration filename of this component. */ const char *option_config_filename; /* The static table of known options for this component. */ known_option_t *known_options; /* The runtime change callback. If KILLFLAG is true the component is killed and not just reloaded. */ void (*runtime_change) (int killflag); /* The table of known options as read from the component including * header lines and such. This is suitable to be passed to * gpgrt_argparser. Will be filled in by * retrieve_options_from_program. */ gpgrt_opt_t *opt_table; /* The full table including data from OPT_TABLE. The end of the * table is marked by NULL entry for NAME. Will be filled in by * retrieve_options_from_program. */ gc_option_t *options; } gc_component[GC_COMPONENT_NR] = { /* Note: The order of the items must match the order given in the * gc_component_id_t enumeration. The order is often used by * frontends to display the backend options thus do not change the * order without considering the user experience. */ { NULL }, /* DUMMY for GC_COMPONENT_ANY */ { GPG_NAME, GPG_DISP_NAME, "gnupg", N_("OpenPGP"), GNUPG_MODULE_NAME_GPG, GPG_NAME ".conf", known_options_gpg }, { GPGSM_NAME, GPGSM_DISP_NAME, "gnupg", N_("S/MIME"), GNUPG_MODULE_NAME_GPGSM, GPGSM_NAME ".conf", known_options_gpgsm }, { KEYBOXD_NAME, KEYBOXD_DISP_NAME, "gnupg", N_("Public Keys"), GNUPG_MODULE_NAME_KEYBOXD, KEYBOXD_NAME ".conf", known_options_keyboxd, keyboxd_runtime_change }, { GPG_AGENT_NAME, GPG_AGENT_DISP_NAME, "gnupg", N_("Private Keys"), GNUPG_MODULE_NAME_AGENT, GPG_AGENT_NAME ".conf", known_options_gpg_agent, gpg_agent_runtime_change }, { SCDAEMON_NAME, SCDAEMON_DISP_NAME, "gnupg", N_("Smartcards"), GNUPG_MODULE_NAME_SCDAEMON, SCDAEMON_NAME ".conf", known_options_scdaemon, scdaemon_runtime_change}, { DIRMNGR_NAME, DIRMNGR_DISP_NAME, "gnupg", N_("Network"), GNUPG_MODULE_NAME_DIRMNGR, DIRMNGR_NAME ".conf", known_options_dirmngr, dirmngr_runtime_change }, { "pinentry", "Pinentry", "gnupg", N_("Passphrase Entry"), GNUPG_MODULE_NAME_PINENTRY, NULL, known_options_pinentry } }; /* Structure used to collect error output of the component programs. */ struct error_line_s; typedef struct error_line_s *error_line_t; struct error_line_s { error_line_t next; /* Link to next item. */ const char *fname; /* Name of the config file (points into BUFFER). */ unsigned int lineno; /* Line number of the config file. */ const char *errtext; /* Text of the error message (points into BUFFER). */ char buffer[1]; /* Helper buffer. */ }; /* Initialization and finalization. */ static void gc_option_free (gc_option_t *o) { if (o == NULL || o->name == NULL) return; xfree (o->value); gc_option_free (o + 1); } static void gc_components_free (void) { int i; for (i = 0; i < DIM (gc_component); i++) gc_option_free (gc_component[i].options); } void gc_components_init (void) { atexit (gc_components_free); } /* Engine specific support. */ static void gpg_agent_runtime_change (int killflag) { gpg_error_t err = 0; const char *pgmname; const char *argv[5]; pid_t pid = (pid_t)(-1); int i = 0; pgmname = gnupg_module_name (GNUPG_MODULE_NAME_CONNECT_AGENT); if (!gnupg_default_homedir_p ()) { argv[i++] = "--homedir"; argv[i++] = gnupg_homedir (); } argv[i++] = "--no-autostart"; argv[i++] = killflag? "KILLAGENT" : "RELOADAGENT"; argv[i++] = NULL; if (!err) err = gnupg_spawn_process_fd (pgmname, argv, -1, -1, -1, &pid); if (!err) err = gnupg_wait_process (pgmname, pid, 1, NULL); if (err) gc_error (0, 0, "error running '%s %s': %s", pgmname, argv[1], gpg_strerror (err)); gnupg_release_process (pid); } static void scdaemon_runtime_change (int killflag) { gpg_error_t err = 0; const char *pgmname; const char *argv[9]; pid_t pid = (pid_t)(-1); int i = 0; (void)killflag; /* For scdaemon kill and reload are synonyms. */ /* We use "GETINFO app_running" to see whether the agent is already running and kill it only in this case. This avoids an explicit starting of the agent in case it is not yet running. There is obviously a race condition but that should not harm too much. */ pgmname = gnupg_module_name (GNUPG_MODULE_NAME_CONNECT_AGENT); if (!gnupg_default_homedir_p ()) { argv[i++] = "--homedir"; argv[i++] = gnupg_homedir (); } argv[i++] = "-s"; argv[i++] = "--no-autostart"; argv[i++] = "GETINFO scd_running"; argv[i++] = "/if ${! $?}"; argv[i++] = "scd killscd"; argv[i++] = "/end"; argv[i++] = NULL; if (!err) err = gnupg_spawn_process_fd (pgmname, argv, -1, -1, -1, &pid); if (!err) err = gnupg_wait_process (pgmname, pid, 1, NULL); if (err) gc_error (0, 0, "error running '%s %s': %s", pgmname, argv[4], gpg_strerror (err)); gnupg_release_process (pid); } static void dirmngr_runtime_change (int killflag) { gpg_error_t err = 0; const char *pgmname; const char *argv[6]; pid_t pid = (pid_t)(-1); pgmname = gnupg_module_name (GNUPG_MODULE_NAME_CONNECT_AGENT); argv[0] = "--no-autostart"; argv[1] = "--dirmngr"; argv[2] = killflag? "KILLDIRMNGR" : "RELOADDIRMNGR"; if (gnupg_default_homedir_p ()) argv[3] = NULL; else { argv[3] = "--homedir"; argv[4] = gnupg_homedir (); argv[5] = NULL; } if (!err) err = gnupg_spawn_process_fd (pgmname, argv, -1, -1, -1, &pid); if (!err) err = gnupg_wait_process (pgmname, pid, 1, NULL); if (err) gc_error (0, 0, "error running '%s %s': %s", pgmname, argv[2], gpg_strerror (err)); gnupg_release_process (pid); } static void keyboxd_runtime_change (int killflag) { gpg_error_t err = 0; const char *pgmname; const char *argv[6]; pid_t pid = (pid_t)(-1); pgmname = gnupg_module_name (GNUPG_MODULE_NAME_CONNECT_AGENT); argv[0] = "--no-autostart"; argv[1] = "--keyboxd"; argv[2] = killflag? "KILLKEYBOXD" : "RELOADKEYBOXD"; if (gnupg_default_homedir_p ()) argv[3] = NULL; else { argv[3] = "--homedir"; argv[4] = gnupg_homedir (); argv[5] = NULL; } if (!err) err = gnupg_spawn_process_fd (pgmname, argv, -1, -1, -1, &pid); if (!err) err = gnupg_wait_process (pgmname, pid, 1, NULL); if (err) gc_error (0, 0, "error running '%s %s': %s", pgmname, argv[2], gpg_strerror (err)); gnupg_release_process (pid); } /* Launch the gpg-agent or the dirmngr if not already running. */ gpg_error_t gc_component_launch (int component) { gpg_error_t err; const char *pgmname; const char *argv[5]; int i; pid_t pid; if (component < 0) { err = gc_component_launch (GC_COMPONENT_GPG_AGENT); if (!err) err = gc_component_launch (GC_COMPONENT_KEYBOXD); if (!err) err = gc_component_launch (GC_COMPONENT_DIRMNGR); return err; } if (!(component == GC_COMPONENT_GPG_AGENT || component == GC_COMPONENT_KEYBOXD || component == GC_COMPONENT_DIRMNGR)) { log_error ("%s\n", _("Component not suitable for launching")); gpgconf_failure (0); } if (gc_component_check_options (component, NULL, NULL)) { log_error (_("Configuration file of component %s is broken\n"), gc_component[component].name); if (!opt.quiet) log_info (_("Note: Use the command \"%s%s\" to get details.\n"), gc_component[component].name, " --gpgconf-test"); gpgconf_failure (0); } pgmname = gnupg_module_name (GNUPG_MODULE_NAME_CONNECT_AGENT); i = 0; if (!gnupg_default_homedir_p ()) { argv[i++] = "--homedir"; argv[i++] = gnupg_homedir (); } if (component == GC_COMPONENT_DIRMNGR) argv[i++] = "--dirmngr"; else if (component == GC_COMPONENT_KEYBOXD) argv[i++] = "--keyboxd"; argv[i++] = "NOP"; argv[i] = NULL; err = gnupg_spawn_process_fd (pgmname, argv, -1, -1, -1, &pid); if (!err) err = gnupg_wait_process (pgmname, pid, 1, NULL); if (err) gc_error (0, 0, "error running '%s%s%s': %s", pgmname, component == GC_COMPONENT_DIRMNGR? " --dirmngr" : component == GC_COMPONENT_KEYBOXD? " --keyboxd":"", " NOP", gpg_strerror (err)); gnupg_release_process (pid); return err; } static void do_runtime_change (int component, int killflag) { int runtime[GC_COMPONENT_NR] = { 0 }; if (component < 0) { for (component = 0; component < GC_COMPONENT_NR; component++) runtime [component] = 1; } else { log_assert (component >= 0 && component < GC_COMPONENT_NR); runtime [component] = 1; } /* Do the restart for the selected components. */ for (component = GC_COMPONENT_NR-1; component >= 0; component--) { if (runtime[component] && gc_component[component].runtime_change) (*gc_component[component].runtime_change) (killflag); } } /* Unconditionally restart COMPONENT. */ void gc_component_kill (int component) { do_runtime_change (component, 1); } /* Unconditionally reload COMPONENT or all components if COMPONENT is -1. */ void gc_component_reload (int component) { do_runtime_change (component, 0); } /* More or less Robust version of dgettext. It has the side effect of switching the codeset to utf-8 because this is what we want to output. In theory it is possible to keep the original code set and switch back for regular diagnostic output (redefine "_(" for that) but given the nature of this tool, being something invoked from other programs, it does not make much sense. */ static const char * my_dgettext (const char *domain, const char *msgid) { #ifdef USE_SIMPLE_GETTEXT if (domain) { static int switched_codeset; char *text; if (!switched_codeset) { switched_codeset = 1; gettext_use_utf8 (1); } if (!strcmp (domain, "gnupg")) domain = PACKAGE_GT; /* FIXME: we have no dgettext, thus we can't switch. */ text = (char*)gettext (msgid); return text ? text : msgid; } else return msgid; #elif defined(ENABLE_NLS) if (domain) { static int switched_codeset; char *text; if (!switched_codeset) { switched_codeset = 1; bind_textdomain_codeset (PACKAGE_GT, "utf-8"); bindtextdomain (DIRMNGR_NAME, LOCALEDIR); bind_textdomain_codeset (DIRMNGR_NAME, "utf-8"); } /* Note: This is a hack to actually use the gnupg2 domain as long we are in a transition phase where gnupg 1.x and 1.9 may coexist. */ if (!strcmp (domain, "gnupg")) domain = PACKAGE_GT; text = dgettext (domain, msgid); return text ? text : msgid; } else return msgid; #else (void)domain; return msgid; #endif } /* Percent-Escape special characters. The string is valid until the next invocation of the function. */ char * gc_percent_escape (const char *src) { static char *esc_str; static int esc_str_len; int new_len = 3 * strlen (src) + 1; char *dst; if (esc_str_len < new_len) { char *new_esc_str = xrealloc (esc_str, new_len); esc_str = new_esc_str; esc_str_len = new_len; } dst = esc_str; while (*src) { if (*src == '%') { *(dst++) = '%'; *(dst++) = '2'; *(dst++) = '5'; } else if (*src == ':') { /* The colon is used as field separator. */ *(dst++) = '%'; *(dst++) = '3'; *(dst++) = 'a'; } else if (*src == ',') { /* The comma is used as list separator. */ *(dst++) = '%'; *(dst++) = '2'; *(dst++) = 'c'; } else if (*src == '\n') { /* The newline is problematic in a line-based format. */ *(dst++) = '%'; *(dst++) = '0'; *(dst++) = 'a'; } else *(dst++) = *(src); src++; } *dst = '\0'; return esc_str; } /* Percent-Deescape special characters. The string is valid until the next invocation of the function. */ static char * percent_deescape (const char *src) { static char *str; static int str_len; int new_len = 3 * strlen (src) + 1; char *dst; if (str_len < new_len) { char *new_str = xrealloc (str, new_len); str = new_str; str_len = new_len; } dst = str; while (*src) { if (*src == '%') { int val = hextobyte (src + 1); if (val < 0) gc_error (1, 0, "malformed end of string %s", src); *(dst++) = (char) val; src += 3; } else *(dst++) = *(src++); } *dst = '\0'; return str; } /* List all components that are available. */ void gc_component_list_components (estream_t out) { gc_component_id_t component; const char *desc; const char *pgmname; for (component = 0; component < GC_COMPONENT_NR; component++) { if (!gc_component[component].program) continue; if (gc_component[component].module_name) pgmname = gnupg_module_name (gc_component[component].module_name); else pgmname = ""; desc = gc_component[component].desc; desc = my_dgettext (gc_component[component].desc_domain, desc); es_fprintf (out, "%s:%s:", gc_component[component].program, gc_percent_escape (desc)); es_fprintf (out, "%s\n", gc_percent_escape (pgmname)); } } static int all_digits_p (const char *p, size_t len) { if (!len) return 0; /* No. */ for (; len; len--, p++) if (!isascii (*p) || !isdigit (*p)) return 0; /* No. */ return 1; /* Yes. */ } /* Collect all error lines from stream FP. Only lines prefixed with TAG are considered. Returns a list of error line items (which may be empty). There is no error return. */ static error_line_t collect_error_output (estream_t fp, const char *tag) { char buffer[1024]; char *p, *p2, *p3; int c, cont_line; unsigned int pos; error_line_t eitem, errlines, *errlines_tail; size_t taglen = strlen (tag); errlines = NULL; errlines_tail = &errlines; pos = 0; cont_line = 0; while ((c=es_getc (fp)) != EOF) { buffer[pos++] = c; if (pos >= sizeof buffer - 5 || c == '\n') { buffer[pos - (c == '\n')] = 0; if (cont_line) ; /*Ignore continuations of previous line. */ else if (!strncmp (buffer, tag, taglen) && buffer[taglen] == ':') { /* "gpgsm: foo:4: bla" */ /* Yep, we are interested in this line. */ p = buffer + taglen + 1; while (*p == ' ' || *p == '\t') p++; trim_trailing_spaces (p); /* Get rid of extra CRs. */ if (!*p) ; /* Empty lines are ignored. */ else if ( (p2 = strchr (p, ':')) && (p3 = strchr (p2+1, ':')) && all_digits_p (p2+1, p3 - (p2+1))) { /* Line in standard compiler format. */ p3++; while (*p3 == ' ' || *p3 == '\t') p3++; eitem = xmalloc (sizeof *eitem + strlen (p)); eitem->next = NULL; strcpy (eitem->buffer, p); eitem->fname = eitem->buffer; eitem->buffer[p2-p] = 0; eitem->errtext = eitem->buffer + (p3 - p); /* (we already checked that there are only ascii digits followed by a colon) */ eitem->lineno = 0; for (p2++; isdigit (*p2); p2++) eitem->lineno = eitem->lineno*10 + (*p2 - '0'); *errlines_tail = eitem; errlines_tail = &eitem->next; } else { /* Other error output. */ eitem = xmalloc (sizeof *eitem + strlen (p)); eitem->next = NULL; strcpy (eitem->buffer, p); eitem->fname = NULL; eitem->errtext = eitem->buffer; eitem->lineno = 0; *errlines_tail = eitem; errlines_tail = &eitem->next; } } pos = 0; /* If this was not a complete line mark that we are in a continuation. */ cont_line = (c != '\n'); } } /* We ignore error lines not terminated by a LF. */ return errlines; } /* Check the options of a single component. If CONF_FILE is NULL the * standard config file is used. If OUT is not NULL the output is * written to that stream. Returns 0 if everything is OK. */ int gc_component_check_options (int component, estream_t out, const char *conf_file) { gpg_error_t err; unsigned int result; const char *pgmname; const char *argv[5]; int i; pid_t pid; int exitcode; estream_t errfp; error_line_t errlines; log_assert (component >= 0 && component < GC_COMPONENT_NR); if (!gc_component[component].program) return 0; if (!gc_component[component].module_name) return 0; pgmname = gnupg_module_name (gc_component[component].module_name); i = 0; if (!gnupg_default_homedir_p () && component != GC_COMPONENT_PINENTRY) { argv[i++] = "--homedir"; argv[i++] = gnupg_homedir (); } if (conf_file) { argv[i++] = "--options"; argv[i++] = conf_file; } if (component == GC_COMPONENT_PINENTRY) argv[i++] = "--version"; else argv[i++] = "--gpgconf-test"; argv[i++] = NULL; result = 0; errlines = NULL; err = gnupg_spawn_process (pgmname, argv, NULL, NULL, 0, NULL, NULL, &errfp, &pid); if (err) result |= 1; /* Program could not be run. */ else { errlines = collect_error_output (errfp, gc_component[component].name); if (gnupg_wait_process (pgmname, pid, 1, &exitcode)) { if (exitcode == -1) result |= 1; /* Program could not be run or it terminated abnormally. */ result |= 2; /* Program returned an error. */ } gnupg_release_process (pid); es_fclose (errfp); } /* If the program could not be run, we can't tell whether the config file is good. */ if (result & 1) result |= 2; if (out) { const char *desc; error_line_t errptr; desc = gc_component[component].desc; desc = my_dgettext (gc_component[component].desc_domain, desc); es_fprintf (out, "%s:%s:", gc_component[component].program, gc_percent_escape (desc)); es_fputs (gc_percent_escape (pgmname), out); es_fprintf (out, ":%d:%d:", !(result & 1), !(result & 2)); for (errptr = errlines; errptr; errptr = errptr->next) { if (errptr != errlines) es_fputs ("\n:::::", out); /* Continuation line. */ if (errptr->fname) es_fputs (gc_percent_escape (errptr->fname), out); es_putc (':', out); if (errptr->fname) es_fprintf (out, "%u", errptr->lineno); es_putc (':', out); es_fputs (gc_percent_escape (errptr->errtext), out); es_putc (':', out); } es_putc ('\n', out); } while (errlines) { error_line_t tmp = errlines->next; xfree (errlines); errlines = tmp; } return result; } /* Check all components that are available. */ void gc_check_programs (estream_t out) { gc_component_id_t component; for (component = 0; component < GC_COMPONENT_NR; component++) gc_component_check_options (component, out, NULL); } /* Find the component with the name NAME. Returns -1 if not found. */ int gc_component_find (const char *name) { gc_component_id_t idx; for (idx = 0; idx < GC_COMPONENT_NR; idx++) { if (gc_component[idx].program && !strcmp (name, gc_component[idx].program)) return idx; } return -1; } /* List the option OPTION. */ static void list_one_option (gc_component_id_t component, const gc_option_t *option, estream_t out) { const char *desc = NULL; char *arg_name = NULL; unsigned long flags; const char *desc_domain = gc_component[component].desc_domain; if (option->desc) { desc = my_dgettext (desc_domain, option->desc); if (*desc == '|') { const char *arg_tail = strchr (&desc[1], '|'); if (arg_tail) { int arg_len = arg_tail - &desc[1]; arg_name = xmalloc (arg_len + 1); memcpy (arg_name, &desc[1], arg_len); arg_name[arg_len] = '\0'; desc = arg_tail + 1; } } } /* YOU MUST NOT REORDER THE FIELDS IN THIS OUTPUT, AS THEIR ORDER IS PART OF THE EXTERNAL INTERFACE. YOU MUST NOT REMOVE ANY FIELDS. */ /* The name field. */ es_fprintf (out, "%s", option->name); /* The flags field. */ flags = 0; if (option->is_header) flags |= GC_OPT_FLAG_GROUP; if (option->is_list) flags |= GC_OPT_FLAG_LIST; if (option->runtime) flags |= GC_OPT_FLAG_RUNTIME; if (option->has_default) flags |= GC_OPT_FLAG_DEFAULT; if (option->def_in_desc) flags |= GC_OPT_FLAG_DEF_DESC; if (option->no_arg_desc) flags |= GC_OPT_FLAG_NO_ARG_DESC; if (option->no_change) flags |= GC_OPT_FLAG_NO_CHANGE; es_fprintf (out, ":%lu", flags); if (opt.verbose) { es_putc (' ', out); if (!flags) es_fprintf (out, "none"); else { unsigned long flag = 0; unsigned long first = 1; while (flags) { if (flags & 1) { if (first) first = 0; else es_putc (',', out); es_fprintf (out, "%s", gc_flag[flag].name); } flags >>= 1; flag++; } } } /* The level field. */ es_fprintf (out, ":%u", option->level); if (opt.verbose) es_fprintf (out, " %s", gc_level[option->level].name); /* The description field. */ es_fprintf (out, ":%s", desc ? gc_percent_escape (desc) : ""); /* The type field. */ es_fprintf (out, ":%u", option->arg_type); if (opt.verbose) es_fprintf (out, " %s", gc_arg_type[option->arg_type].name); /* The alternate type field. */ es_fprintf (out, ":%u", gc_arg_type[option->arg_type].fallback); if (opt.verbose) es_fprintf (out, " %s", gc_arg_type[gc_arg_type[option->arg_type].fallback].name); /* The argument name field. */ es_fprintf (out, ":%s", arg_name ? gc_percent_escape (arg_name) : ""); xfree (arg_name); /* The default value field. */ es_fprintf (out, ":%s", option->default_value ? option->default_value : ""); /* The default argument field. This was never used and is thus empty. */ es_fprintf (out, ":"); /* The value field. */ if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_NONE && option->is_list && option->value) { /* The special format "1,1,1,1,...,1" is converted to a number here. */ es_fprintf (out, ":%u", (unsigned int)((strlen (option->value) + 1) / 2)); } else es_fprintf (out, ":%s", option->value ? option->value : ""); /* ADD NEW FIELDS HERE. */ es_putc ('\n', out); } /* List all options of the component COMPONENT. */ void gc_component_list_options (int component, estream_t out) { const gc_option_t *option = gc_component[component].options; for ( ; option && option->name; option++) { /* Do not output unknown or internal options. */ if (!option->is_header && option->level == GC_LEVEL_INTERNAL) continue; if (option->is_header) { const gc_option_t *group_option = option + 1; gc_expert_level_t level = GC_LEVEL_NR; /* The manual states that the group level is always the minimum of the levels of all contained options. Due to different active options, and because it is hard to maintain manually, we calculate it here. The value in the global static table is ignored. */ for ( ; group_option->name; group_option++) { if (group_option->is_header) break; if (group_option->level < level) level = group_option->level; } /* Check if group is empty. */ if (level != GC_LEVEL_NR) { gc_option_t opt_copy; /* Fix up the group level. */ opt_copy = *option; opt_copy.level = level; list_one_option (component, &opt_copy, out); } } else list_one_option (component, option, out); } } /* Return true if the option NAME is known and that we want it as * gpgconf managed option. */ static known_option_t * is_known_option (gc_component_id_t component, const char *name) { known_option_t *option = gc_component[component].known_options; if (option) { for (; option->name; option++) if (!strcmp (option->name, name)) break; } return (option && option->name)? option : NULL; } /* Find the option NAME in component COMPONENT. Returns pointer to * the option descriptor or NULL if not found. */ static gc_option_t * find_option (gc_component_id_t component, const char *name) { gc_option_t *option = gc_component[component].options; if (option) { for (; option->name; option++) { if (!option->is_header && !strcmp (option->name, name)) return option; } } return NULL; } /* Retrieve the options for the component COMPONENT. With * ONLY_INSTALLED set components which are not installed are silently * ignored. */ static void retrieve_options_from_program (gc_component_id_t component, int only_installed) { gpg_error_t err; const char *pgmname; const char *argv[2]; estream_t outfp; int exitcode; pid_t pid; known_option_t *known_option; gc_option_t *option; char *line = NULL; size_t line_len = 0; ssize_t length; const char *config_name; gpgrt_argparse_t pargs; int dummy_argc; char *twopartconfig_name = NULL; gpgrt_opt_t *opt_table = NULL; /* A malloced option table. */ size_t opt_table_used = 0; /* Its current length. */ size_t opt_table_size = 0; /* Its allocated length. */ gc_option_t *opt_info = NULL; /* A malloced options table. */ size_t opt_info_used = 0; /* Its current length. */ size_t opt_info_size = 0; /* Its allocated length. */ int i; pgmname = (gc_component[component].module_name ? gnupg_module_name (gc_component[component].module_name) : gc_component[component].program ); if (only_installed && gnupg_access (pgmname, X_OK)) { return; /* The component is not installed. */ } /* First we need to read the option table from the program. */ argv[0] = "--dump-option-table"; argv[1] = NULL; err = gnupg_spawn_process (pgmname, argv, NULL, NULL, 0, NULL, &outfp, NULL, &pid); if (err) { gc_error (1, 0, "could not gather option table from '%s': %s", pgmname, gpg_strerror (err)); } while ((length = es_read_line (outfp, &line, &line_len, NULL)) > 0) { const char *fields[4]; const char *optname, *optdesc; unsigned int optflags; int short_opt; gc_arg_type_t arg_type; /* Strip newline and carriage return, if present. */ while (length > 0 && (line[length - 1] == '\n' || line[length - 1] == '\r')) line[--length] = '\0'; if (split_fields_colon (line, fields, DIM (fields)) < 4) { gc_error (0,0, "WARNING: invalid line in option table of '%s'\n", pgmname); continue; } optname = fields[0]; short_opt = atoi (fields[1]); if (short_opt < 1) { gc_error (0,0, "WARNING: bad short option in option table of '%s'\n", pgmname); continue; } optflags = strtoul (fields[2], NULL, 10); if ((optflags & ARGPARSE_OPT_HEADER)) known_option = NULL; /* We want all header-only options. */ else if ((known_option = is_known_option (component, optname))) ; /* Yes we want this one. */ else continue; /* No need to store this option description. */ /* The +1 here is to make sure that we will have a zero item at * the end of the table. */ if (opt_table_used + 1 >= opt_table_size) { /* Note that this also does the initial allocation. */ opt_table_size += 128; opt_table = xreallocarray (opt_table, opt_table_used, opt_table_size, sizeof *opt_table); } /* The +1 here is to make sure that we will have a zero item at * the end of the table. */ if (opt_info_used + 1 >= opt_info_size) { /* Note that this also does the initial allocation. */ opt_info_size += 128; opt_info = xreallocarray (opt_info, opt_info_used, opt_info_size, sizeof *opt_info); } /* The +1 here accounts for the two items we are going to add to * the global string table. */ if (string_array_used + 1 >= string_array_size) { string_array_size += 256; string_array = xreallocarray (string_array, string_array_used, string_array_size, sizeof *string_array); } optname = string_array[string_array_used++] = xstrdup (fields[0]); optdesc = string_array[string_array_used++] = xstrdup (fields[3]); /* Create an option table which can then be supplied to * gpgrt_parser. Unfortunately there is no private pointer in * the public option table struct so that we can't add extra * data we need here. Thus we need to build up another table * for such info and for ease of use we also copy the tehre the * data from the option table. It is not possible to use the * known_option_s for this because that one does not carry * header lines and it might also be problematic to use such * static tables for caching options and default values. */ opt_table[opt_table_used].long_opt = optname; opt_table[opt_table_used].short_opt = short_opt; opt_table[opt_table_used].description = optdesc; opt_table[opt_table_used].flags = optflags; opt_table_used++; /* Note that as per argparser specs the opt_table uses "@" to * specifify an empty description. In the DESC script of * options (opt_info_t) we want to have a real empty string. */ opt_info[opt_info_used].name = optname; if (*optdesc == '@' && !optdesc[1]) opt_info[opt_info_used].desc = optdesc+1; else opt_info[opt_info_used].desc = optdesc; /* Unfortunately we need to remap the types. */ switch ((optflags & ARGPARSE_TYPE_MASK)) { case ARGPARSE_TYPE_INT: arg_type = GC_ARG_TYPE_INT32; break; case ARGPARSE_TYPE_LONG: arg_type = GC_ARG_TYPE_INT32; break; case ARGPARSE_TYPE_ULONG: arg_type = GC_ARG_TYPE_UINT32; break; case ARGPARSE_TYPE_STRING: arg_type = GC_ARG_TYPE_STRING; break; default: arg_type = GC_ARG_TYPE_NONE; break; } opt_info[opt_info_used].arg_type = arg_type; if ((optflags & ARGPARSE_OPT_HEADER)) opt_info[opt_info_used].is_header = 1; if (known_option) { if ((known_option->flags & GC_OPT_FLAG_LIST)) opt_info[opt_info_used].is_list = 1; /* FIXME: The next can also be taken from opt_table->flags. * We need to check the code whether both specifications match. */ if ((known_option->flags & GC_OPT_FLAG_ARG_OPT)) opt_info[opt_info_used].opt_arg = 1; if ((known_option->flags & GC_OPT_FLAG_RUNTIME)) opt_info[opt_info_used].runtime = 1; opt_info[opt_info_used].level = known_option->level; /* Override the received argtype by a complex type. */ if (known_option->arg_type) opt_info[opt_info_used].arg_type = known_option->arg_type; } opt_info_used++; } if (length < 0 || es_ferror (outfp)) gc_error (1, errno, "error reading from %s", pgmname); if (es_fclose (outfp)) gc_error (1, errno, "error closing %s", pgmname); log_assert (opt_table_used == opt_info_used); err = gnupg_wait_process (pgmname, pid, 1, &exitcode); if (err) gc_error (1, 0, "running %s failed (exitcode=%d): %s", pgmname, exitcode, gpg_strerror (err)); gnupg_release_process (pid); /* Make the gpgrt option table and the internal option table available. */ gc_component[component].opt_table = opt_table; gc_component[component].options = opt_info; /* Now read the default options. */ argv[0] = "--gpgconf-list"; argv[1] = NULL; err = gnupg_spawn_process (pgmname, argv, NULL, NULL, 0, NULL, &outfp, NULL, &pid); if (err) { gc_error (1, 0, "could not gather active options from '%s': %s", pgmname, gpg_strerror (err)); } while ((length = es_read_line (outfp, &line, &line_len, NULL)) > 0) { char *linep; unsigned long flags = 0; char *default_value = NULL; /* Strip newline and carriage return, if present. */ while (length > 0 && (line[length - 1] == '\n' || line[length - 1] == '\r')) line[--length] = '\0'; linep = strchr (line, ':'); if (linep) *(linep++) = '\0'; /* Extract additional flags. Default to none. */ if (linep) { char *end; char *tail; end = strchr (linep, ':'); if (end) *(end++) = '\0'; gpg_err_set_errno (0); flags = strtoul (linep, &tail, 0); if (errno) gc_error (1, errno, "malformed flags in option %s from %s", line, pgmname); if (!(*tail == '\0' || *tail == ':' || *tail == ' ')) gc_error (1, 0, "garbage after flags in option %s from %s", line, pgmname); linep = end; } /* Extract default value, if present. Default to empty if not. */ if (linep) { char *end; end = strchr (linep, ':'); if (end) *(end++) = '\0'; if ((flags & GC_OPT_FLAG_DEFAULT)) default_value = linep; linep = end; } /* Look up the option in the component and install the configuration data. */ option = find_option (component, line); if (option) { if (option->gpgconf_list) gc_error (1, errno, "option %s returned twice from \"%s --gpgconf-list\"", line, pgmname); option->gpgconf_list = 1; if ((flags & GC_OPT_FLAG_DEFAULT)) option->has_default = 1; if ((flags & GC_OPT_FLAG_DEF_DESC)) option->def_in_desc = 1; if ((flags & GC_OPT_FLAG_NO_ARG_DESC)) option->no_arg_desc = 1; if ((flags & GC_OPT_FLAG_NO_CHANGE)) option->no_change = 1; if (default_value && *default_value) option->default_value = xstrdup (default_value); } } if (length < 0 || es_ferror (outfp)) gc_error (1, errno, "error reading from %s", pgmname); if (es_fclose (outfp)) gc_error (1, errno, "error closing %s", pgmname); err = gnupg_wait_process (pgmname, pid, 1, &exitcode); if (err) gc_error (1, 0, "running %s failed (exitcode=%d): %s", pgmname, exitcode, gpg_strerror (err)); gnupg_release_process (pid); /* At this point, we can parse the configuration file. */ config_name = gc_component[component].option_config_filename; if (!config_name) gc_error (1, 0, "name of config file for %s is not known\n", pgmname); if (!gnupg_default_homedir_p ()) { /* This is not the default homedir. We need to take an absolute * config name for the user config file; gpgrt_argparser * fortunately supports this. */ char *tmp = make_filename (gnupg_homedir (), config_name, NULL); twopartconfig_name = xstrconcat (config_name, PATHSEP_S, tmp, NULL); xfree (tmp); config_name = twopartconfig_name; } memset (&pargs, 0, sizeof pargs); dummy_argc = 0; pargs.argc = &dummy_argc; pargs.flags = (ARGPARSE_FLAG_KEEP | ARGPARSE_FLAG_SYS | ARGPARSE_FLAG_USER | ARGPARSE_FLAG_WITHATTR); if (opt.verbose) pargs.flags |= ARGPARSE_FLAG_VERBOSE; while (gpgrt_argparser (&pargs, opt_table, config_name)) { char *opt_value; if (pargs.r_type & ARGPARSE_OPT_IGNORE) { /* log_debug ("ignored\n"); */ continue; } if (pargs.r_opt == ARGPARSE_CONFFILE) { /* log_debug ("current conffile='%s'\n", */ /* pargs.r_type? pargs.r.ret_str: "[cmdline]"); */ continue; } /* We only have the short option. Search in the option table * for the long option name. */ for (i=0; opt_table[i].short_opt; i++) if (opt_table[i].short_opt == pargs.r_opt) break; if (!opt_table[i].short_opt || !opt_table[i].long_opt) continue; /* No or only a short option - ignore. */ /* Look up the option from the config file in our list of * supported options. */ option= find_option (component, opt_table[i].long_opt); if (!option) continue; /* We don't want to handle this option. */ option->attr_ignore = !!(pargs.r_type & ARGPARSE_ATTR_IGNORE); option->attr_force = !!(pargs.r_type & ARGPARSE_ATTR_FORCE); switch ((pargs.r_type & ARGPARSE_TYPE_MASK)) { case ARGPARSE_TYPE_INT: opt_value = xasprintf ("%d", pargs.r.ret_int); break; case ARGPARSE_TYPE_LONG: opt_value = xasprintf ("%ld", pargs.r.ret_long); break; case ARGPARSE_TYPE_ULONG: opt_value = xasprintf ("%lu", pargs.r.ret_ulong); break; case ARGPARSE_TYPE_STRING: opt_value = xasprintf ("\"%s", gc_percent_escape (pargs.r.ret_str)); break; default: /* ARGPARSE_TYPE_NONE or any unknown type. */ opt_value = xstrdup ("1"); /* Make sure we have some value. */ break; } /* Now enter the value read from the config file into the table. */ if (!option->is_list) { xfree (option->value); option->value = opt_value; } else if (!option->value) /* LIST but first item. */ option->value = opt_value; else { char *old = option->value; option->value = xstrconcat (old, ",", opt_value, NULL); xfree (old); xfree (opt_value); } } xfree (line); xfree (twopartconfig_name); } /* Retrieve the currently active options and their defaults for this component. Using -1 for component will retrieve all options from all installed components. */ void gc_component_retrieve_options (int component) { int process_all = 0; if (component == -1) { process_all = 1; component = 0; } do { if (component == GC_COMPONENT_PINENTRY) continue; /* Skip this dummy component. */ if (gc_component[component].program) retrieve_options_from_program (component, process_all); } while (process_all && ++component < GC_COMPONENT_NR); } /* Perform a simple validity check based on the type. Return in * NEW_VALUE_NR the value of the number in NEW_VALUE if OPTION is of * type GC_ARG_TYPE_NONE. If VERBATIM is set the profile parsing mode * is used. */ static void option_check_validity (gc_component_id_t component, gc_option_t *option, unsigned long flags, char *new_value, unsigned long *new_value_nr, int verbatim) { char *arg; (void)component; if (option->new_flags || option->new_value) gc_error (1, 0, "option %s already changed", option->name); if (flags & GC_OPT_FLAG_DEFAULT) { if (*new_value) gc_error (1, 0, "argument %s provided for deleted option %s", new_value, option->name); return; } /* GC_ARG_TYPE_NONE options have special list treatment. */ if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_NONE) { char *tail; gpg_err_set_errno (0); *new_value_nr = strtoul (new_value, &tail, 0); if (errno) gc_error (1, errno, "invalid argument for option %s", option->name); if (*tail) gc_error (1, 0, "garbage after argument for option %s", option->name); if (!option->is_list) { if (*new_value_nr != 1) gc_error (1, 0, "argument for non-list option %s of type 0 " "(none) must be 1", option->name); } else { if (*new_value_nr == 0) gc_error (1, 0, "argument for option %s of type 0 (none) " "must be positive", option->name); } return; } arg = new_value; do { if (*arg == '\0' || (*arg == ',' && !verbatim)) { if (!option->opt_arg) gc_error (1, 0, "argument required for option %s", option->name); if (*arg == ',' && !verbatim && !option->is_list) gc_error (1, 0, "list found for non-list option %s", option->name); } else if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_STRING) { if (*arg != '"' && !verbatim) gc_error (1, 0, "string argument for option %s must begin " "with a quote (\") character", option->name); /* FIXME: We do not allow empty string arguments for now, as we do not quote arguments in configuration files, and thus no argument is indistinguishable from the empty string. */ if (arg[1] == '\0' || (arg[1] == ',' && !verbatim)) gc_error (1, 0, "empty string argument for option %s is " "currently not allowed. Please report this!", option->name); } else if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_INT32) { long res; gpg_err_set_errno (0); res = strtol (arg, &arg, 0); (void) res; if (errno) gc_error (1, errno, "invalid argument for option %s", option->name); if (*arg != '\0' && (*arg != ',' || verbatim)) gc_error (1, 0, "garbage after argument for option %s", option->name); } else if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_UINT32) { unsigned long res; gpg_err_set_errno (0); res = strtoul (arg, &arg, 0); (void) res; if (errno) gc_error (1, errno, "invalid argument for option %s", option->name); if (*arg != '\0' && (*arg != ',' || verbatim)) gc_error (1, 0, "garbage after argument for option %s", option->name); } arg = verbatim? strchr (arg, ',') : NULL; if (arg) arg++; } while (arg && *arg); } #ifdef HAVE_W32_SYSTEM int copy_file (const char *src_name, const char *dst_name) { #define BUF_LEN 4096 char buffer[BUF_LEN]; int len; gpgrt_stream_t src; gpgrt_stream_t dst; src = gpgrt_fopen (src_name, "r"); if (src == NULL) return -1; dst = gpgrt_fopen (dst_name, "w"); if (dst == NULL) { int saved_err = errno; gpgrt_fclose (src); gpg_err_set_errno (saved_err); return -1; } do { int written; len = gpgrt_fread (buffer, 1, BUF_LEN, src); if (len == 0) break; written = gpgrt_fwrite (buffer, 1, len, dst); if (written != len) break; } while (! gpgrt_feof (src) && ! gpgrt_ferror (src) && ! gpgrt_ferror (dst)); if (gpgrt_ferror (src) || gpgrt_ferror (dst) || ! gpgrt_feof (src)) { int saved_errno = errno; gpgrt_fclose (src); gpgrt_fclose (dst); unlink (dst_name); gpg_err_set_errno (saved_errno); return -1; } if (gpgrt_fclose (dst)) gc_error (1, errno, "error closing %s", dst_name); if (gpgrt_fclose (src)) gc_error (1, errno, "error closing %s", src_name); return 0; } #endif /* HAVE_W32_SYSTEM */ /* Create and verify the new configuration file for the specified * component. Returns 0 on success and -1 on error. If * VERBATIM is set the profile mode is used. This function may store * pointers to malloced strings in SRC_FILENAMEP, DEST_FILENAMEP, and * ORIG_FILENAMEP. Those must be freed by the caller. The strings * refer to three versions of the configuration file: * * SRC_FILENAME: The updated configuration is written to this file. * DEST_FILENAME: Name of the configuration file read by the * component. * ORIG_FILENAME: A backup of the previous configuration file. * * To apply the configuration change, rename SRC_FILENAME to * DEST_FILENAME. To revert to the previous configuration, rename * ORIG_FILENAME to DEST_FILENAME. */ static int change_options_program (gc_component_id_t component, char **src_filenamep, char **dest_filenamep, char **orig_filenamep, int verbatim) { static const char marker[] = "###+++--- " GPGCONF_DISP_NAME " ---+++###"; /* True if we are within the marker in the config file. */ int in_marker = 0; gc_option_t *option; char *line = NULL; size_t line_len; ssize_t length; int res; int fd; gpgrt_stream_t src_file = NULL; gpgrt_stream_t dest_file = NULL; char *src_filename; char *dest_filename; char *orig_filename; /* Special hack for gpg, see below. */ int utf8strings_seen = 0; /* FIXME. Throughout the function, do better error reporting. */ if (!gc_component[component].option_config_filename) gc_error (1, 0, "name of config file for %s is not known\n", gc_component[component].name); dest_filename = make_absfilename (gnupg_homedir (), gc_component[component].option_config_filename, NULL); src_filename = xasprintf ("%s.%s.%i.new", dest_filename, GPGCONF_NAME, (int)getpid ()); orig_filename = xasprintf ("%s.%s.%i.bak", dest_filename, GPGCONF_NAME, (int)getpid ()); #ifdef HAVE_W32_SYSTEM res = copy_file (dest_filename, orig_filename); #else res = link (dest_filename, orig_filename); #endif if (res < 0 && errno != ENOENT) { xfree (dest_filename); xfree (src_filename); xfree (orig_filename); return -1; } if (res < 0) { xfree (orig_filename); orig_filename = NULL; } /* We now initialize the return strings, so the caller can do the cleanup for us. */ *src_filenamep = src_filename; *dest_filenamep = dest_filename; *orig_filenamep = orig_filename; - /* Use open() so that we can use O_EXCL. */ - fd = open (src_filename, O_CREAT | O_EXCL | O_WRONLY, 0644); + /* Use open() so that we can use O_EXCL. + * FIXME: gpgrt has an x flag for quite some time now - use that. */ + fd = gnupg_open (src_filename, O_CREAT | O_EXCL | O_WRONLY, 0644); if (fd < 0) return -1; src_file = gpgrt_fdopen (fd, "w"); res = errno; if (!src_file) { gpg_err_set_errno (res); return -1; } /* Only if ORIG_FILENAME is not NULL did the configuration file exist already. In this case, we will copy its content into the new configuration file, changing it to our liking in the process. */ if (orig_filename) { dest_file = gpgrt_fopen (dest_filename, "r"); if (!dest_file) goto change_one_err; while ((length = gpgrt_read_line (dest_file, &line, &line_len, NULL)) > 0) { int disable = 0; char *start; if (!strncmp (marker, line, sizeof (marker) - 1)) { if (!in_marker) in_marker = 1; else break; } else if (component == GC_COMPONENT_GPG && in_marker && ! strcmp ("utf8-strings\n", line)) { /* Strip duplicated entries. */ if (utf8strings_seen) disable = 1; else utf8strings_seen = 1; } start = line; while (*start == ' ' || *start == '\t') start++; if (*start && *start != '\r' && *start != '\n' && *start != '#') { char *end; char saved_end; end = start; while (*end && *end != ' ' && *end != '\t' && *end != '\r' && *end != '\n' && *end != '#') end++; saved_end = *end; *end = '\0'; option = find_option (component, start); *end = saved_end; if (option && ((option->new_flags & GC_OPT_FLAG_DEFAULT) || option->new_value)) disable = 1; } if (disable) { if (!in_marker) { gpgrt_fprintf (src_file, "# %s disabled this option here at %s\n", GPGCONF_DISP_NAME, asctimestamp (gnupg_get_time ())); if (gpgrt_ferror (src_file)) goto change_one_err; gpgrt_fprintf (src_file, "# %s", line); if (gpgrt_ferror (src_file)) goto change_one_err; } } else { gpgrt_fprintf (src_file, "%s", line); if (gpgrt_ferror (src_file)) goto change_one_err; } } if (length < 0 || gpgrt_ferror (dest_file)) goto change_one_err; } if (!in_marker) { /* There was no marker. This is the first time we edit the file. We add our own marker at the end of the file and proceed. Note that we first write a newline, this guards us against files which lack the newline at the end of the last line, while it doesn't hurt us in all other cases. */ gpgrt_fprintf (src_file, "\n%s\n", marker); if (gpgrt_ferror (src_file)) goto change_one_err; } /* At this point, we have copied everything up to the end marker into the new file, except for the options we are going to change. Now, dump the changed options (except for those we are going to revert to their default), and write the end marker, possibly followed by the rest of the original file. */ /* We have to turn on UTF8 strings for GnuPG. */ if (component == GC_COMPONENT_GPG && ! utf8strings_seen) gpgrt_fprintf (src_file, "utf8-strings\n"); option = gc_component[component].options; for ( ; option->name; option++) { if (!option->is_header && option->new_value) { char *arg = option->new_value; do { if (*arg == '\0' || *arg == ',') { gpgrt_fprintf (src_file, "%s\n", option->name); if (gpgrt_ferror (src_file)) goto change_one_err; } else if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_NONE) { log_assert (*arg == '1'); gpgrt_fprintf (src_file, "%s\n", option->name); if (gpgrt_ferror (src_file)) goto change_one_err; arg++; } else if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_STRING) { char *end; if (!verbatim) { log_assert (*arg == '"'); arg++; end = strchr (arg, ','); if (end) *end = '\0'; } else end = NULL; gpgrt_fprintf (src_file, "%s %s\n", option->name, verbatim? arg : percent_deescape (arg)); if (gpgrt_ferror (src_file)) goto change_one_err; if (end) *end = ','; arg = end; } else { char *end; end = strchr (arg, ','); if (end) *end = '\0'; gpgrt_fprintf (src_file, "%s %s\n", option->name, arg); if (gpgrt_ferror (src_file)) goto change_one_err; if (end) *end = ','; arg = end; } log_assert (arg == NULL || *arg == '\0' || *arg == ','); if (arg && *arg == ',') arg++; } while (arg && *arg); } } gpgrt_fprintf (src_file, "%s %s\n", marker, asctimestamp (gnupg_get_time ())); if (gpgrt_ferror (src_file)) goto change_one_err; if (!in_marker) { gpgrt_fprintf (src_file, "# %s edited this configuration file.\n", GPGCONF_DISP_NAME); if (gpgrt_ferror (src_file)) goto change_one_err; gpgrt_fprintf (src_file, "# It will disable options before this marked " "block, but it will\n"); if (gpgrt_ferror (src_file)) goto change_one_err; gpgrt_fprintf (src_file, "# never change anything below these lines.\n"); if (gpgrt_ferror (src_file)) goto change_one_err; } if (dest_file) { while ((length = gpgrt_read_line (dest_file, &line, &line_len, NULL)) > 0) { gpgrt_fprintf (src_file, "%s", line); if (gpgrt_ferror (src_file)) goto change_one_err; } if (length < 0 || gpgrt_ferror (dest_file)) goto change_one_err; } xfree (line); line = NULL; res = gpgrt_fclose (src_file); if (res) { res = errno; close (fd); if (dest_file) gpgrt_fclose (dest_file); gpg_err_set_errno (res); return -1; } close (fd); if (dest_file) { res = gpgrt_fclose (dest_file); if (res) return -1; } return 0; change_one_err: xfree (line); res = errno; if (src_file) { gpgrt_fclose (src_file); close (fd); } if (dest_file) gpgrt_fclose (dest_file); gpg_err_set_errno (res); return -1; } /* Common code for gc_component_change_options and * gc_process_gpgconf_conf. If VERBATIM is set the profile parsing * mode is used. */ static void change_one_value (gc_component_id_t component, gc_option_t *option, int *r_runtime, unsigned long flags, char *new_value, int verbatim) { unsigned long new_value_nr = 0; option_check_validity (component, option, flags, new_value, &new_value_nr, verbatim); if (option->runtime) *r_runtime = 1; option->new_flags = flags; if (!(flags & GC_OPT_FLAG_DEFAULT)) { if (gc_arg_type[option->arg_type].fallback == GC_ARG_TYPE_NONE && option->is_list) { char *str; /* We convert the number to a list of 1's for convenient list handling. */ log_assert (new_value_nr > 0); option->new_value = xmalloc ((2 * (new_value_nr - 1) + 1) + 1); str = option->new_value; *(str++) = '1'; while (--new_value_nr > 0) { *(str++) = ','; *(str++) = '1'; } *(str++) = '\0'; } else option->new_value = xstrdup (new_value); } } /* Read the modifications from IN and apply them. If IN is NULL the modifications are expected to already have been set to the global table. If VERBATIM is set the profile mode is used. */ void gc_component_change_options (int component, estream_t in, estream_t out, int verbatim) { int err = 0; int block = 0; int runtime = 0; char *src_filename = NULL; char *dest_filename = NULL; char *orig_filename = NULL; gc_option_t *option; char *line = NULL; size_t line_len = 0; ssize_t length; if (component == GC_COMPONENT_PINENTRY) return; /* Dummy component for now. */ if (in) { /* Read options from the file IN. */ while ((length = es_read_line (in, &line, &line_len, NULL)) > 0) { char *linep; unsigned long flags = 0; char *new_value = ""; /* Strip newline and carriage return, if present. */ while (length > 0 && (line[length - 1] == '\n' || line[length - 1] == '\r')) line[--length] = '\0'; linep = strchr (line, ':'); if (linep) *(linep++) = '\0'; /* Extract additional flags. Default to none. */ if (linep) { char *end; char *tail; end = strchr (linep, ':'); if (end) *(end++) = '\0'; gpg_err_set_errno (0); flags = strtoul (linep, &tail, 0); if (errno) gc_error (1, errno, "malformed flags in option %s", line); if (!(*tail == '\0' || *tail == ':' || *tail == ' ')) gc_error (1, 0, "garbage after flags in option %s", line); linep = end; } /* Don't allow setting of the no change flag. */ flags &= ~GC_OPT_FLAG_NO_CHANGE; /* Extract default value, if present. Default to empty if not. */ if (linep) { char *end; end = strchr (linep, ':'); if (end) *(end++) = '\0'; new_value = linep; linep = end; } option = find_option (component, line); if (!option) gc_error (1, 0, "unknown option %s", line); if (option->no_change) { gc_error (0, 0, "ignoring new value for option %s", option->name); continue; } change_one_value (component, option, &runtime, flags, new_value, 0); } if (length < 0 || gpgrt_ferror (in)) gc_error (1, errno, "error reading stream 'in'"); } /* Now that we have collected and locally verified the changes, write them out to new configuration files, verify them externally, and then commit them. */ option = gc_component[component].options; while (option && option->name) { /* Go on if there is nothing to do. */ if (src_filename || !(option->new_flags || option->new_value)) { option++; continue; } if (gc_component[component].program) { err = change_options_program (component, &src_filename, &dest_filename, &orig_filename, verbatim); if (! err) { /* External verification. */ err = gc_component_check_options (component, out, src_filename); if (err) { gc_error (0, 0, _("External verification of component %s failed"), gc_component[component].name); gpg_err_set_errno (EINVAL); } } } if (err) break; option++; } /* We are trying to atomically commit all changes. Unfortunately, we cannot rely on gnupg_rename_file to manage the signals for us, doing so would require us to pass NULL as BLOCK to any subsequent call to it. Instead, we just manage the signal handling manually. */ block = 1; gnupg_block_all_signals (); if (!err && !opt.dry_run) { if (src_filename) { /* FIXME: Make a verification here. */ log_assert (dest_filename); if (orig_filename) err = gnupg_rename_file (src_filename, dest_filename, NULL); else { #ifdef HAVE_W32_SYSTEM /* We skip the unlink if we expect the file not to be * there. */ err = gnupg_rename_file (src_filename, dest_filename, NULL); #else /* HAVE_W32_SYSTEM */ /* This is a bit safer than rename() because we expect * DEST_FILENAME not to be there. If it happens to be * there, this will fail. */ err = link (src_filename, dest_filename); if (!err) err = unlink (src_filename); #endif /* !HAVE_W32_SYSTEM */ } if (!err) { xfree (src_filename); src_filename = NULL; } } } if (err || opt.dry_run) { int saved_errno = errno; /* An error occurred or a dry-run is requested. */ if (src_filename) { /* The change was not yet committed. */ unlink (src_filename); if (orig_filename) unlink (orig_filename); } else { /* The changes were already committed. FIXME: This is a tad dangerous, as we don't know if we don't overwrite a version of the file that is even newer than the one we just installed. */ if (orig_filename) gnupg_rename_file (orig_filename, dest_filename, NULL); else unlink (dest_filename); } if (err) gc_error (1, saved_errno, "could not commit changes"); /* Fall-through for dry run. */ goto leave; } /* If it all worked, notify the daemons of the changes. */ if (opt.runtime) do_runtime_change (component, 0); /* Move the per-process backup file into its place. */ if (orig_filename) { char *backup_filename; log_assert (dest_filename); backup_filename = xasprintf ("%s.%s.bak", dest_filename, GPGCONF_NAME); gnupg_rename_file (orig_filename, backup_filename, NULL); xfree (backup_filename); } leave: if (block) gnupg_unblock_all_signals (); xfree (line); xfree (src_filename); xfree (dest_filename); xfree (orig_filename); } /* Check whether USER matches the current user or one of its group. This function may change USER. Returns true is there is a match. */ static int key_matches_user_or_group (char *user) { char *group; if (*user == '*' && user[1] == 0) return 1; /* A single asterisk matches all users. */ group = strchr (user, ':'); if (group) *group++ = 0; #ifdef HAVE_W32_SYSTEM /* Under Windows we don't support groups. */ if (group && *group) gc_error (0, 0, _("Note that group specifications are ignored\n")); #ifndef HAVE_W32CE_SYSTEM if (*user) { static char *my_name; if (!my_name) { char tmp[1]; DWORD size = 1; GetUserNameA (tmp, &size); my_name = xmalloc (size); if (!GetUserNameA (my_name, &size)) gc_error (1,0, "error getting current user name: %s", w32_strerror (-1)); } if (!strcmp (user, my_name)) return 1; /* Found. */ } #endif /*HAVE_W32CE_SYSTEM*/ #else /*!HAVE_W32_SYSTEM*/ /* First check whether the user matches. */ if (*user) { static char *my_name; if (!my_name) { struct passwd *pw = getpwuid ( getuid () ); if (!pw) gc_error (1, errno, "getpwuid failed for current user"); my_name = xstrdup (pw->pw_name); } if (!strcmp (user, my_name)) return 1; /* Found. */ } /* If that failed, check whether a group matches. */ if (group && *group) { static char *my_group; static char **my_supgroups; int n; if (!my_group) { struct group *gr = getgrgid ( getgid () ); if (!gr) gc_error (1, errno, "getgrgid failed for current user"); my_group = xstrdup (gr->gr_name); } if (!strcmp (group, my_group)) return 1; /* Found. */ if (!my_supgroups) { int ngids; gid_t *gids; ngids = getgroups (0, NULL); gids = xcalloc (ngids+1, sizeof *gids); ngids = getgroups (ngids, gids); if (ngids < 0) gc_error (1, errno, "getgroups failed for current user"); my_supgroups = xcalloc (ngids+1, sizeof *my_supgroups); for (n=0; n < ngids; n++) { struct group *gr = getgrgid ( gids[n] ); if (!gr) gc_error (1, errno, "getgrgid failed for supplementary group"); my_supgroups[n] = xstrdup (gr->gr_name); } xfree (gids); } for (n=0; my_supgroups[n]; n++) if (!strcmp (group, my_supgroups[n])) return 1; /* Found. */ } #endif /*!HAVE_W32_SYSTEM*/ return 0; /* No match. */ } /* Read and process the global configuration file for gpgconf. This optional file is used to update our internal tables at runtime and may also be used to set new default values. If FNAME is NULL the default name will be used. With UPDATE set to true the internal tables are actually updated; if not set, only a syntax check is done. If DEFAULTS is true the global options are written to the configuration files. If LISTFP is set, no changes are done but the configuration file is printed to LISTFP in a colon separated format. Returns 0 on success or if the config file is not present; -1 is returned on error. */ int gc_process_gpgconf_conf (const char *fname_arg, int update, int defaults, estream_t listfp) { int result = 0; char *line = NULL; size_t line_len = 0; ssize_t length; gpgrt_stream_t config; int lineno = 0; int in_rule = 0; int got_match = 0; int runtime[GC_COMPONENT_NR] = { 0 }; int component_id; char *fname; if (fname_arg) fname = xstrdup (fname_arg); else fname = make_filename (gnupg_sysconfdir (), GPGCONF_NAME EXTSEP_S "conf", NULL); config = gpgrt_fopen (fname, "r"); if (!config) { /* Do not print an error if the file is not available, except when running in syntax check mode. */ if (errno != ENOENT || !update) { gc_error (0, errno, "can't open global config file '%s'", fname); result = -1; } xfree (fname); return result; } while ((length = gpgrt_read_line (config, &line, &line_len, NULL)) > 0) { char *key, *compname, *option, *flags, *value; char *empty; gc_option_t *option_info = NULL; char *p; int is_continuation; lineno++; key = line; while (*key == ' ' || *key == '\t') key++; if (!*key || *key == '#' || *key == '\r' || *key == '\n') continue; is_continuation = (key != line); /* Parse the key field. */ if (!is_continuation && got_match) break; /* Finish after the first match. */ else if (!is_continuation) { in_rule = 0; for (p=key+1; *p && !strchr (" \t\r\n", *p); p++) ; if (!*p) { gc_error (0, 0, "missing rule at '%s', line %d", fname, lineno); result = -1; gpgconf_write_status (STATUS_WARNING, "gpgconf.conf %d file '%s' line %d " "missing rule", GPG_ERR_SYNTAX, fname, lineno); continue; } *p++ = 0; compname = p; } else if (!in_rule) { gc_error (0, 0, "continuation but no rule at '%s', line %d", fname, lineno); result = -1; continue; } else { compname = key; key = NULL; } in_rule = 1; /* Parse the component. */ while (*compname == ' ' || *compname == '\t') compname++; for (p=compname; *p && !strchr (" \t\r\n", *p); p++) ; if (p == compname) { gc_error (0, 0, "missing component at '%s', line %d", fname, lineno); gpgconf_write_status (STATUS_WARNING, "gpgconf.conf %d file '%s' line %d " " missing component", GPG_ERR_NO_NAME, fname, lineno); result = -1; continue; } empty = p; *p++ = 0; option = p; component_id = gc_component_find (compname); if (component_id < 0) { gc_error (0, 0, "unknown component at '%s', line %d", fname, lineno); gpgconf_write_status (STATUS_WARNING, "gpgconf.conf %d file '%s' line %d " "unknown component", GPG_ERR_UNKNOWN_NAME, fname, lineno); result = -1; } /* Parse the option name. */ while (*option == ' ' || *option == '\t') option++; for (p=option; *p && !strchr (" \t\r\n", *p); p++) ; if (p == option) { gc_error (0, 0, "missing option at '%s', line %d", fname, lineno); gpgconf_write_status (STATUS_WARNING, "gpgconf.conf %d file '%s' line %d " "missing option", GPG_ERR_INV_NAME, fname, lineno); result = -1; continue; } *p++ = 0; flags = p; if ( component_id != -1) { /* We need to make sure that we got the option list for the * component. */ if (!gc_component[component_id].options) gc_component_retrieve_options (component_id); option_info = find_option (component_id, option); if (!option_info) { gc_error (0, 0, "unknown option '%s' at '%s', line %d", option, fname, lineno); gpgconf_write_status (STATUS_WARNING, "gpgconf.conf %d file '%s' line %d " "unknown option", GPG_ERR_UNKNOWN_OPTION, fname, lineno); result = -1; } } /* Parse the optional flags. */ while (*flags == ' ' || *flags == '\t') flags++; if (*flags == '[') { flags++; p = strchr (flags, ']'); if (!p) { gc_error (0, 0, "syntax error in rule at '%s', line %d", fname, lineno); gpgconf_write_status (STATUS_WARNING, "gpgconf.conf %d file '%s' line %d " "syntax error in rule", GPG_ERR_SYNTAX, fname, lineno); result = -1; continue; } *p++ = 0; value = p; } else /* No flags given. */ { value = flags; flags = NULL; } /* Parse the optional value. */ while (*value == ' ' || *value == '\t') value++; for (p=value; *p && !strchr ("\r\n", *p); p++) ; if (p == value) value = empty; /* No value given; let it point to an empty string. */ else { /* Strip trailing white space. */ *p = 0; for (p--; p > value && (*p == ' ' || *p == '\t'); p--) *p = 0; } /* Check flag combinations. */ if (!flags) ; else if (!strcmp (flags, "default")) { if (*value) { gc_error (0, 0, "flag \"default\" may not be combined " "with a value at '%s', line %d", fname, lineno); result = -1; } } else if (!strcmp (flags, "change")) ; else if (!strcmp (flags, "no-change")) ; else { gc_error (0, 0, "unknown flag at '%s', line %d", fname, lineno); result = -1; } /* In list mode we print out all records. */ if (listfp && !result) { /* If this is a new ruleset, print a key record. */ if (!is_continuation) { char *group = strchr (key, ':'); if (group) { *group++ = 0; if ((p = strchr (group, ':'))) *p = 0; /* We better strip any extra stuff. */ } es_fprintf (listfp, "k:%s:", gc_percent_escape (key)); es_fprintf (listfp, "%s\n", group? gc_percent_escape (group):""); } /* All other lines are rule records. */ es_fprintf (listfp, "r:::%s:%s:%s:", gc_component[component_id].name, option_info->name? option_info->name : "", flags? flags : ""); if (value != empty) es_fprintf (listfp, "\"%s", gc_percent_escape (value)); es_putc ('\n', listfp); } /* Check whether the key matches but do this only if we are not running in syntax check mode. */ if ( update && !result && !listfp && (got_match || (key && key_matches_user_or_group (key))) ) { int newflags = 0; got_match = 1; /* Apply the flags from gpgconf.conf. */ if (!flags) ; else if (!strcmp (flags, "default")) newflags |= GC_OPT_FLAG_DEFAULT; else if (!strcmp (flags, "no-change")) option_info->no_change = 1; else if (!strcmp (flags, "change")) option_info->no_change = 0; if (defaults) { /* Here we explicitly allow updating the value again. */ if (newflags) { option_info->new_flags = 0; } if (*value) { xfree (option_info->new_value); option_info->new_value = NULL; } change_one_value (component_id, option_info, runtime, newflags, value, 0); } } } if (length < 0 || gpgrt_ferror (config)) { gc_error (0, errno, "error reading from '%s'", fname); result = -1; } if (gpgrt_fclose (config)) gc_error (0, errno, "error closing '%s'", fname); xfree (line); /* If it all worked, process the options. */ if (!result && update && defaults && !listfp) { /* We need to switch off the runtime update, so that we can do it later all at once. */ int save_opt_runtime = opt.runtime; opt.runtime = 0; for (component_id = 0; component_id < GC_COMPONENT_NR; component_id++) { gc_component_change_options (component_id, NULL, NULL, 0); } opt.runtime = save_opt_runtime; if (opt.runtime) { for (component_id = 0; component_id < GC_COMPONENT_NR; component_id++) if (runtime[component_id] && gc_component[component_id].runtime_change) (*gc_component[component_id].runtime_change) (0); } } xfree (fname); return result; } /* * Apply the profile FNAME to all known configure files. */ gpg_error_t gc_apply_profile (const char *fname) { gpg_error_t err; char *fname_buffer = NULL; char *line = NULL; size_t line_len = 0; ssize_t length; estream_t fp; int lineno = 0; int runtime[GC_COMPONENT_NR] = { 0 }; int component_id = -1; int skip_section = 0; int error_count = 0; int newflags; if (!fname) fname = "-"; if (!(!strcmp (fname, "-") || strchr (fname, '/') #ifdef HAVE_W32_SYSTEM || strchr (fname, '\\') #endif || strchr (fname, '.'))) { /* FNAME looks like a standard profile name. Check whether one * is installed and use that instead of the given file name. */ fname_buffer = xstrconcat (gnupg_datadir (), DIRSEP_S, fname, ".prf", NULL); if (!gnupg_access (fname_buffer, F_OK)) fname = fname_buffer; } fp = !strcmp (fname, "-")? es_stdin : es_fopen (fname, "r"); if (!fp) { err = gpg_error_from_syserror (); log_error ("can't open '%s': %s\n", fname, gpg_strerror (err)); return err; } if (opt.verbose) log_info ("applying profile '%s'\n", fname); err = 0; while ((length = es_read_line (fp, &line, &line_len, NULL)) > 0) { char *name, *flags, *value; gc_option_t *option_info = NULL; char *p; lineno++; name = line; while (*name == ' ' || *name == '\t') name++; if (!*name || *name == '#' || *name == '\r' || *name == '\n') continue; trim_trailing_spaces (name); /* Check whether this is a new section. */ if (*name == '[') { name++; skip_section = 0; /* New section: Get the name of the component. */ p = strchr (name, ']'); if (!p) { error_count++; log_info ("%s:%d:%d: error: syntax error in section tag\n", fname, lineno, (int)(name - line)); skip_section = 1; continue; } *p++ = 0; if (*p) log_info ("%s:%d:%d: warning: garbage after section tag\n", fname, lineno, (int)(p - line)); trim_spaces (name); component_id = gc_component_find (name); if (component_id < 0) { log_info ("%s:%d:%d: warning: skipping unknown section '%s'\n", fname, lineno, (int)(name - line), name ); skip_section = 1; } continue; } if (skip_section) continue; if (component_id < 0) { error_count++; log_info ("%s:%d:%d: error: not in a valid section\n", fname, lineno, (int)(name - line)); skip_section = 1; continue; } /* Parse the option name. */ for (p = name; *p && !spacep (p); p++) ; *p++ = 0; value = p; option_info = find_option (component_id, name); if (!option_info) { error_count++; log_info ("%s:%d:%d: error: unknown option '%s' in section '%s'\n", fname, lineno, (int)(name - line), name, gc_component[component_id].name); continue; } /* Parse the optional flags. */ trim_spaces (value); flags = value; if (*flags == '[') { flags++; p = strchr (flags, ']'); if (!p) { log_info ("%s:%d:%d: warning: invalid flag specification\n", fname, lineno, (int)(p - line)); continue; } *p++ = 0; value = p; trim_spaces (value); } else /* No flags given. */ flags = NULL; /* Set required defaults. */ if (gc_arg_type[option_info->arg_type].fallback == GC_ARG_TYPE_NONE && !*value) value = "1"; /* Check and save this option. */ newflags = 0; if (flags && !strcmp (flags, "default")) newflags |= GC_OPT_FLAG_DEFAULT; if (newflags) option_info->new_flags = 0; if (*value) { xfree (option_info->new_value); option_info->new_value = NULL; } change_one_value (component_id, option_info, runtime, newflags, value, 1); } if (length < 0 || es_ferror (fp)) { err = gpg_error_from_syserror (); error_count++; log_error (_("%s:%u: read error: %s\n"), fname, lineno, gpg_strerror (err)); } if (es_fclose (fp)) log_error (_("error closing '%s'\n"), fname); if (error_count) log_error (_("error parsing '%s'\n"), fname); xfree (line); /* If it all worked, process the options. */ if (!err) { /* We need to switch off the runtime update, so that we can do it later all at once. */ int save_opt_runtime = opt.runtime; opt.runtime = 0; for (component_id = 0; component_id < GC_COMPONENT_NR; component_id++) { gc_component_change_options (component_id, NULL, NULL, 1); } opt.runtime = save_opt_runtime; if (opt.runtime) { for (component_id = 0; component_id < GC_COMPONENT_NR; component_id++) if (runtime[component_id] && gc_component[component_id].runtime_change) (*gc_component[component_id].runtime_change) (0); } } xfree (fname_buffer); return err; }