diff --git a/src/Makefile.am b/src/Makefile.am index 0ac58ac4..12568fd8 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1,172 +1,171 @@ # Makefile.am - for gcrypt/src # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, # 2006, 2007 Free Software Foundation, Inc. # # This file is part of Libgcrypt. # # Libgcrypt is free software; you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as # published by the Free Software Foundation; either version 2.1 of # the License, or (at your option) any later version. # # Libgcrypt 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 Lesser 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 . ## Process this file with automake to produce Makefile.in pkgconfigdir = $(libdir)/pkgconfig pkgconfig_DATA = libgcrypt.pc EXTRA_DIST = libgcrypt-config.in libgcrypt.m4 libgcrypt.vers \ gcrypt.h.in libgcrypt.def libgcrypt.pc.in bin_SCRIPTS = libgcrypt-config m4datadir = $(datadir)/aclocal m4data_DATA = libgcrypt.m4 nodist_include_HEADERS = gcrypt.h lib_LTLIBRARIES = libgcrypt.la bin_PROGRAMS = dumpsexp hmac256 mpicalc if USE_RANDOM_DAEMON sbin_PROGRAMS = gcryptrnd bin_PROGRAMS += getrandom endif USE_RANDOM_DAEMON # Depending on the architecture some targets require libgpg-error. if HAVE_W32CE_SYSTEM arch_gpg_error_cflags = $(GPG_ERROR_CFLAGS) arch_gpg_error_libs = $(GPG_ERROR_LIBS) else arch_gpg_error_cflags = arch_gpg_error_libs = endif AM_CFLAGS = $(GPG_ERROR_CFLAGS) AM_CCASFLAGS = $(NOEXECSTACK_FLAGS) if HAVE_LD_VERSION_SCRIPT libgcrypt_version_script_cmd = -Wl,--version-script=$(srcdir)/libgcrypt.vers else libgcrypt_version_script_cmd = endif libgcrypt_la_CFLAGS = $(GPG_ERROR_CFLAGS) libgcrypt_la_SOURCES = \ gcrypt-int.h g10lib.h visibility.c visibility.h types.h \ gcrypt-testapi.h cipher.h cipher-proto.h \ misc.c global.c sexp.c hwfeatures.c hwf-common.h \ stdmem.c stdmem.h secmem.c secmem.h \ mpi.h missing-string.c fips.c \ hmac256.c hmac256.h context.c context.h \ ec-context.h EXTRA_libgcrypt_la_SOURCES = hwf-x86.c hwf-arm.c hwf-ppc.c hwf-s390x.c gcrypt_hwf_modules = @GCRYPT_HWF_MODULES@ if HAVE_W32_SYSTEM RCCOMPILE = $(RC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \ $(libgcrypt_la_CPPFLAGS) $(AM_CPPFLAGS) $(CPPFLAGS) LTRCCOMPILE = $(LIBTOOL) --mode=compile --tag=RC $(RCCOMPILE) SUFFIXES = .rc .lo .rc.lo: $(LTRCCOMPILE) -i "$<" -o "$@" gcrypt_res = versioninfo.lo no_undefined = -no-undefined export_symbols = -export-symbols $(srcdir)/libgcrypt.def extra_ltoptions = -XCClinker -static-libgcc install-def-file: -$(INSTALL) -d $(DESTDIR)$(libdir) $(INSTALL) $(srcdir)/libgcrypt.def $(DESTDIR)$(libdir)/libgcrypt.def uninstall-def-file: -rm $(DESTDIR)$(libdir)/libgcrypt.def gcrypt_deps = $(gcrypt_res) libgcrypt.def else !HAVE_W32_SYSTEM gcrypt_res = gcrypt_res_ldflag = no_undefined = export_symbols = extra_ltoptions = install-def-file: uninstall-def-file: gcrypt_deps = endif !HAVE_W32_SYSTEM libgcrypt_la_LDFLAGS = $(no_undefined) $(export_symbols) $(extra_ltoptions) \ $(libgcrypt_version_script_cmd) -version-info \ @LIBGCRYPT_LT_CURRENT@:@LIBGCRYPT_LT_REVISION@:@LIBGCRYPT_LT_AGE@ libgcrypt_la_DEPENDENCIES = \ $(gcrypt_hwf_modules) \ ../cipher/libcipher.la \ ../random/librandom.la \ ../mpi/libmpi.la \ ../compat/libcompat.la \ $(srcdir)/libgcrypt.vers $(gcrypt_deps) libgcrypt_la_LIBADD = $(gcrypt_res) \ $(gcrypt_hwf_modules) \ ../cipher/libcipher.la \ ../random/librandom.la \ ../mpi/libmpi.la \ ../compat/libcompat.la $(DL_LIBS) $(GPG_ERROR_LIBS) dumpsexp_SOURCES = dumpsexp.c dumpsexp_CFLAGS = $(arch_gpg_error_cflags) dumpsexp_LDADD = $(arch_gpg_error_libs) mpicalc_SOURCES = mpicalc.c mpicalc_CFLAGS = $(GPG_ERROR_CFLAGS) mpicalc_LDADD = libgcrypt.la $(GPG_ERROR_LIBS) EXTRA_mpicalc_DEPENDENCIES = libgcrypt.la.done hmac256_SOURCES = hmac256.c hmac256_CFLAGS = -DSTANDALONE $(arch_gpg_error_cflags) hmac256_LDADD = $(arch_gpg_error_libs) if USE_RANDOM_DAEMON gcryptrnd_SOURCES = gcryptrnd.c gcryptrnd_CFLAGS = $(GPG_ERROR_CFLAGS) $(PTH_CFLAGS) gcryptrnd_LDADD = libgcrypt.la $(GPG_ERROR_LIBS) $(PTH_LIBS) getrandom_SOURCES = getrandom.c endif USE_RANDOM_DAEMON CLEANFILES = libgcrypt.la.done if USE_HMAC_BINARY_CHECK CLEANFILES += libgcrypt.so.hmac libgcrypt.la.done: libgcrypt.so.hmac - $(OBJCOPY) --add-section .hmac=libgcrypt.so.hmac \ - --set-section-flags .hmac=noload,readonly .libs/libgcrypt.so \ - .libs/libgcrypt.so.new + $(OBJCOPY) --update-section .rodata1=libgcrypt.so.hmac \ + .libs/libgcrypt.so .libs/libgcrypt.so.new mv -f .libs/libgcrypt.so.new .libs/libgcrypt.so.*.* @touch libgcrypt.la.done libgcrypt.so.hmac: hmac256 libgcrypt.la ./hmac256 --stdkey --binary < .libs/libgcrypt.so > $@ else !USE_HMAC_BINARY_CHECK libgcrypt.la.done: libgcrypt.la @touch libgcrypt.la.done endif !USE_HMAC_BINARY_CHECK install-data-local: install-def-file uninstall-local: uninstall-def-file diff --git a/src/fips.c b/src/fips.c index 6bca3f9f..981abfd1 100644 --- a/src/fips.c +++ b/src/fips.c @@ -1,883 +1,838 @@ /* fips.c - FIPS mode management * Copyright (C) 2008 Free Software Foundation, Inc. * * This file is part of Libgcrypt. * * Libgcrypt is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * Libgcrypt 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see . */ #include #include #include #include #include #include #ifdef ENABLE_HMAC_BINARY_CHECK # include #endif #ifdef HAVE_SYSLOG # include #endif /*HAVE_SYSLOG*/ /* The name of the file used to force libgcrypt into fips mode. */ #define FIPS_FORCE_FILE "/etc/gcrypt/fips_enabled" #include "g10lib.h" #include "cipher-proto.h" #include "hmac256.h" /* The states of the finite state machine used in fips mode. */ enum module_states { /* POWEROFF cannot be represented. */ STATE_POWERON = 0, STATE_INIT, STATE_SELFTEST, STATE_OPERATIONAL, STATE_ERROR, STATE_FATALERROR, STATE_SHUTDOWN }; /* Flag telling whether we are in fips mode. It uses inverse logic so that fips mode is the default unless changed by the initialization code. To check whether fips mode is enabled, use the function fips_mode()! */ int _gcry_no_fips_mode_required; /* Flag to indicate that we are in the enforced FIPS mode. */ static int enforced_fips_mode; /* If this flag is set, the application may no longer assume that the process is running in FIPS mode. This flag is protected by the FSM_LOCK. */ static int inactive_fips_mode; /* This is the lock we use to protect the FSM. */ GPGRT_LOCK_DEFINE (fsm_lock); /* The current state of the FSM. The whole state machinery is only used while in fips mode. Change this only while holding fsm_lock. */ static enum module_states current_state; static void fips_new_state (enum module_states new_state); /* Convert lowercase hex digits; assumes valid hex digits. */ #define loxtoi_1(p) (*(p) <= '9'? (*(p)- '0'): (*(p)-'a'+10)) #define loxtoi_2(p) ((loxtoi_1(p) * 16) + loxtoi_1((p)+1)) /* Returns true if P points to a lowercase hex digit. */ #define loxdigit_p(p) !!strchr ("01234567890abcdef", *(p)) /* Check whether the OS is in FIPS mode and record that in a module local variable. If FORCE is passed as true, fips mode will be enabled anyway. Note: This function is not thread-safe and should be called before any threads are created. This function may only be called once. */ void _gcry_initialize_fips_mode (int force) { static int done; gpg_error_t err; /* Make sure we are not accidentally called twice. */ if (done) { if ( fips_mode () ) { fips_new_state (STATE_FATALERROR); fips_noreturn (); } /* If not in fips mode an assert is sufficient. */ gcry_assert (!done); } done = 1; /* If the calling application explicitly requested fipsmode, do so. */ if (force || getenv ("LIBGCRYPT_FORCE_FIPS_MODE")) { gcry_assert (!_gcry_no_fips_mode_required); goto leave; } /* For testing the system it is useful to override the system provided detection of the FIPS mode and force FIPS mode using a file. The filename is hardwired so that there won't be any confusion on whether /etc/gcrypt/ or /usr/local/etc/gcrypt/ is actually used. The file itself may be empty. */ if ( !access (FIPS_FORCE_FILE, F_OK) ) { gcry_assert (!_gcry_no_fips_mode_required); goto leave; } /* Checking based on /proc file properties. */ { static const char procfname[] = "/proc/sys/crypto/fips_enabled"; FILE *fp; int saved_errno; fp = fopen (procfname, "r"); if (fp) { char line[256]; if (fgets (line, sizeof line, fp) && atoi (line)) { /* System is in fips mode. */ fclose (fp); gcry_assert (!_gcry_no_fips_mode_required); goto leave; } fclose (fp); } else if ((saved_errno = errno) != ENOENT && saved_errno != EACCES && !access ("/proc/version", F_OK) ) { /* Problem reading the fips file despite that we have the proc file system. We better stop right away. */ log_info ("FATAL: error reading `%s' in libgcrypt: %s\n", procfname, strerror (saved_errno)); #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt error: " "reading `%s' failed: %s - abort", procfname, strerror (saved_errno)); #endif /*HAVE_SYSLOG*/ abort (); } } /* Fips not not requested, set flag. */ _gcry_no_fips_mode_required = 1; leave: if (!_gcry_no_fips_mode_required) { /* Yes, we are in FIPS mode. */ FILE *fp; /* Intitialize the lock to protect the FSM. */ err = gpgrt_lock_init (&fsm_lock); if (err) { /* If that fails we can't do anything but abort the process. We need to use log_info so that the FSM won't get involved. */ log_info ("FATAL: failed to create the FSM lock in libgcrypt: %s\n", gpg_strerror (err)); #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt error: " "creating FSM lock failed: %s - abort", gpg_strerror (err)); #endif /*HAVE_SYSLOG*/ abort (); } /* If the FIPS force files exists, is readable and has a number != 0 on its first line, we enable the enforced fips mode. */ fp = fopen (FIPS_FORCE_FILE, "r"); if (fp) { char line[256]; if (fgets (line, sizeof line, fp) && atoi (line)) enforced_fips_mode = 1; fclose (fp); } /* Now get us into the INIT state. */ fips_new_state (STATE_INIT); } return; } static void lock_fsm (void) { gpg_error_t err; err = gpgrt_lock_lock (&fsm_lock); if (err) { log_info ("FATAL: failed to acquire the FSM lock in libgrypt: %s\n", gpg_strerror (err)); #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt error: " "acquiring FSM lock failed: %s - abort", gpg_strerror (err)); #endif /*HAVE_SYSLOG*/ abort (); } } static void unlock_fsm (void) { gpg_error_t err; err = gpgrt_lock_unlock (&fsm_lock); if (err) { log_info ("FATAL: failed to release the FSM lock in libgrypt: %s\n", gpg_strerror (err)); #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt error: " "releasing FSM lock failed: %s - abort", gpg_strerror (err)); #endif /*HAVE_SYSLOG*/ abort (); } } /* Return a flag telling whether we are in the enforced fips mode. */ int _gcry_enforced_fips_mode (void) { if (!fips_mode ()) return 0; return enforced_fips_mode; } /* Set a flag telling whether we are in the enforced fips mode. */ void _gcry_set_enforced_fips_mode (void) { enforced_fips_mode = 1; } /* If we do not want to enforce the fips mode, we can set a flag so that the application may check whether it is still in fips mode. TEXT will be printed as part of a syslog message. This function may only be be called if in fips mode. */ void _gcry_inactivate_fips_mode (const char *text) { gcry_assert (fips_mode ()); if (_gcry_enforced_fips_mode () ) { /* Get us into the error state. */ fips_signal_error (text); return; } lock_fsm (); if (!inactive_fips_mode) { inactive_fips_mode = 1; unlock_fsm (); #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_WARNING, "Libgcrypt warning: " "%s - FIPS mode inactivated", text); #endif /*HAVE_SYSLOG*/ } else unlock_fsm (); } /* Return the FIPS mode inactive flag. If it is true the FIPS mode is not anymore active. */ int _gcry_is_fips_mode_inactive (void) { int flag; if (!fips_mode ()) return 0; lock_fsm (); flag = inactive_fips_mode; unlock_fsm (); return flag; } static const char * state2str (enum module_states state) { const char *s; switch (state) { case STATE_POWERON: s = "Power-On"; break; case STATE_INIT: s = "Init"; break; case STATE_SELFTEST: s = "Self-Test"; break; case STATE_OPERATIONAL: s = "Operational"; break; case STATE_ERROR: s = "Error"; break; case STATE_FATALERROR: s = "Fatal-Error"; break; case STATE_SHUTDOWN: s = "Shutdown"; break; default: s = "?"; break; } return s; } /* Return true if the library is in the operational state. */ int _gcry_fips_is_operational (void) { int result; if (!fips_mode ()) result = 1; else { lock_fsm (); if (current_state == STATE_INIT) { /* If we are still in the INIT state, we need to run the selftests so that the FSM can eventually get into operational state. Given that we would need a 2-phase initialization of libgcrypt, but that has traditionally not been enforced, we use this on demand self-test checking. Note that Proper applications would do the application specific libgcrypt initialization between a gcry_check_version() and gcry_control (GCRYCTL_INITIALIZATION_FINISHED) where the latter will run the selftests. The drawback of these on-demand self-tests are a small chance that self-tests are performed by several threads; that is no problem because our FSM make sure that we won't oversee any error. */ unlock_fsm (); _gcry_fips_run_selftests (0); lock_fsm (); } result = (current_state == STATE_OPERATIONAL); unlock_fsm (); } return result; } /* This is test on whether the library is in the operational state. In contrast to _gcry_fips_is_operational this function won't do a state transition on the fly. */ int _gcry_fips_test_operational (void) { int result; if (!fips_mode ()) result = 1; else { lock_fsm (); result = (current_state == STATE_OPERATIONAL); unlock_fsm (); } return result; } /* This is a test on whether the library is in the error or operational state. */ int _gcry_fips_test_error_or_operational (void) { int result; if (!fips_mode ()) result = 1; else { lock_fsm (); result = (current_state == STATE_OPERATIONAL || current_state == STATE_ERROR); unlock_fsm (); } return result; } static void reporter (const char *domain, int algo, const char *what, const char *errtxt) { if (!errtxt && !_gcry_log_verbosity (2)) return; log_info ("libgcrypt selftest: %s %s%s (%d): %s%s%s%s\n", !strcmp (domain, "hmac")? "digest":domain, !strcmp (domain, "hmac")? "HMAC-":"", !strcmp (domain, "cipher")? _gcry_cipher_algo_name (algo) : !strcmp (domain, "digest")? _gcry_md_algo_name (algo) : !strcmp (domain, "hmac")? _gcry_md_algo_name (algo) : !strcmp (domain, "pubkey")? _gcry_pk_algo_name (algo) : "", algo, errtxt? errtxt:"Okay", what?" (":"", what? what:"", what?")":""); } /* Run self-tests for all required cipher algorithms. Return 0 on success. */ static int run_cipher_selftests (int extended) { static int algos[] = { GCRY_CIPHER_3DES, GCRY_CIPHER_AES128, GCRY_CIPHER_AES192, GCRY_CIPHER_AES256, 0 }; int idx; gpg_error_t err; int anyerr = 0; for (idx=0; algos[idx]; idx++) { err = _gcry_cipher_selftest (algos[idx], extended, reporter); reporter ("cipher", algos[idx], NULL, err? gpg_strerror (err):NULL); if (err) anyerr = 1; } return anyerr; } /* Run self-tests for all required hash algorithms. Return 0 on success. */ static int run_digest_selftests (int extended) { static int algos[] = { GCRY_MD_SHA1, GCRY_MD_SHA224, GCRY_MD_SHA256, GCRY_MD_SHA384, GCRY_MD_SHA512, 0 }; int idx; gpg_error_t err; int anyerr = 0; for (idx=0; algos[idx]; idx++) { err = _gcry_md_selftest (algos[idx], extended, reporter); reporter ("digest", algos[idx], NULL, err? gpg_strerror (err):NULL); if (err) anyerr = 1; } return anyerr; } /* Run self-tests for MAC algorithms. Return 0 on success. */ static int run_mac_selftests (int extended) { static int algos[] = { GCRY_MAC_HMAC_SHA1, GCRY_MAC_HMAC_SHA224, GCRY_MAC_HMAC_SHA256, GCRY_MAC_HMAC_SHA384, GCRY_MAC_HMAC_SHA512, GCRY_MAC_HMAC_SHA3_224, GCRY_MAC_HMAC_SHA3_256, GCRY_MAC_HMAC_SHA3_384, GCRY_MAC_HMAC_SHA3_512, GCRY_MAC_CMAC_3DES, GCRY_MAC_CMAC_AES, 0 }; int idx; gpg_error_t err; int anyerr = 0; for (idx=0; algos[idx]; idx++) { err = _gcry_mac_selftest (algos[idx], extended, reporter); reporter ("mac", algos[idx], NULL, err? gpg_strerror (err):NULL); if (err) anyerr = 1; } return anyerr; } /* Run self-tests for all KDF algorithms. Return 0 on success. */ static int run_kdf_selftests (int extended) { static int algos[] = { GCRY_KDF_PBKDF2, 0 }; int idx; gpg_error_t err; int anyerr = 0; for (idx=0; algos[idx]; idx++) { err = _gcry_kdf_selftest (algos[idx], extended, reporter); reporter ("kdf", algos[idx], NULL, err? gpg_strerror (err):NULL); if (err) anyerr = 1; } return anyerr; } /* Run self-tests for all required public key algorithms. Return 0 on success. */ static int run_pubkey_selftests (int extended) { static int algos[] = { GCRY_PK_RSA, GCRY_PK_DSA, GCRY_PK_ECC, 0 }; int idx; gpg_error_t err; int anyerr = 0; for (idx=0; algos[idx]; idx++) { err = _gcry_pk_selftest (algos[idx], extended, reporter); reporter ("pubkey", algos[idx], NULL, err? gpg_strerror (err):NULL); if (err) anyerr = 1; } return anyerr; } /* Run self-tests for the random number generator. Returns 0 on success. */ static int run_random_selftests (void) { gpg_error_t err; err = _gcry_random_selftest (reporter); reporter ("random", 0, NULL, err? gpg_strerror (err):NULL); return !!err; } +#ifdef ENABLE_HMAC_BINARY_CHECK +#define KEY_FOR_BINARY_CHECK "What am I, a doctor or a moonshuttle conductor?" +#define HMAC_LEN 32 + +static const unsigned char __attribute__ ((section (".rodata1"))) +hmac_for_the_implementation[HMAC_LEN]; + /* Run an integrity check on the binary. Returns 0 on success. */ static int check_binary_integrity (void) { -#ifdef ENABLE_HMAC_BINARY_CHECK gpg_error_t err; Dl_info info; - unsigned char digest[32]; + unsigned char digest[HMAC_LEN]; int dlen; - char *fname = NULL; - const char key[] = "What am I, a doctor or a moonshuttle conductor?"; + const char key[] = KEY_FOR_BINARY_CHECK; if (!dladdr (gcry_check_version, &info)) err = gpg_error_from_syserror (); else { dlen = _gcry_hmac256_file (digest, sizeof digest, info.dli_fname, key, strlen (key)); if (dlen < 0) err = gpg_error_from_syserror (); - else if (dlen != 32) + else if (dlen != HMAC_LEN) err = gpg_error (GPG_ERR_INTERNAL); else { - fname = xtrymalloc (strlen (info.dli_fname) + 1 + 5 + 1 ); - if (!fname) - err = gpg_error_from_syserror (); + if (memcmp (digest, hmac_for_the_implementation, HMAC_LEN)) + err = gpg_error (GPG_ERR_SELFTEST_FAILED); else - { - FILE *fp; - char *p; - - /* Prefix the basename with a dot. */ - strcpy (fname, info.dli_fname); - p = strrchr (fname, '/'); - if (p) - p++; - else - p = fname; - memmove (p+1, p, strlen (p)+1); - *p = '.'; - strcat (fname, ".hmac"); - - /* Open the file. */ - fp = fopen (fname, "r"); - if (!fp) - err = gpg_error_from_syserror (); - else - { - /* A buffer of 64 bytes plus one for a LF and one to - detect garbage. */ - unsigned char buffer[64+1+1]; - const unsigned char *s; - int n; - - /* The HMAC files consists of lowercase hex digits - with an optional trailing linefeed or optional - with two trailing spaces. The latter format - allows the use of the usual sha1sum format. Fail - if there is any garbage. */ - err = gpg_error (GPG_ERR_SELFTEST_FAILED); - n = fread (buffer, 1, sizeof buffer, fp); - if (n == 64 - || (n == 65 && buffer[64] == '\n') - || (n == 66 && buffer[64] == ' ' && buffer[65] == ' ')) - { - buffer[64] = 0; - for (n=0, s= buffer; - n < 32 && loxdigit_p (s) && loxdigit_p (s+1); - n++, s += 2) - buffer[n] = loxtoi_2 (s); - if ( n == 32 && !memcmp (digest, buffer, 32) ) - err = 0; - } - fclose (fp); - } - } + err = 0; } } - reporter ("binary", 0, fname, err? gpg_strerror (err):NULL); + reporter ("binary", 0, NULL, err? gpg_strerror (err):NULL); #ifdef HAVE_SYSLOG if (err) syslog (LOG_USER|LOG_ERR, "Libgcrypt error: " - "integrity check using `%s' failed: %s", - fname? fname:"[?]", gpg_strerror (err)); + "integrity check failed: %s", + gpg_strerror (err)); #endif /*HAVE_SYSLOG*/ - xfree (fname); return !!err; -#else - return 0; -#endif } +#endif /* Run the self-tests. If EXTENDED is true, extended versions of the selftest are run, that is more tests than required by FIPS. */ gpg_err_code_t _gcry_fips_run_selftests (int extended) { enum module_states result = STATE_ERROR; gcry_err_code_t ec = GPG_ERR_SELFTEST_FAILED; if (fips_mode ()) fips_new_state (STATE_SELFTEST); if (run_cipher_selftests (extended)) goto leave; if (run_digest_selftests (extended)) goto leave; if (run_mac_selftests (extended)) goto leave; if (run_kdf_selftests (extended)) goto leave; /* Run random tests before the pubkey tests because the latter require random. */ if (run_random_selftests ()) goto leave; if (run_pubkey_selftests (extended)) goto leave; +#ifdef ENABLE_HMAC_BINARY_CHECK if (fips_mode ()) { /* Now check the integrity of the binary. We do this this after having checked the HMAC code. */ if (check_binary_integrity ()) goto leave; } +#endif /* All selftests passed. */ result = STATE_OPERATIONAL; ec = 0; leave: if (fips_mode ()) fips_new_state (result); return ec; } /* This function is used to tell the FSM about errors in the library. The FSM will be put into an error state. This function should not be called directly but by one of the macros fips_signal_error (description) fips_signal_fatal_error (description) where DESCRIPTION is a string describing the error. */ void _gcry_fips_signal_error (const char *srcfile, int srcline, const char *srcfunc, int is_fatal, const char *description) { if (!fips_mode ()) return; /* Not required. */ /* Set new state before printing an error. */ fips_new_state (is_fatal? STATE_FATALERROR : STATE_ERROR); /* Print error. */ log_info ("%serror in libgcrypt, file %s, line %d%s%s: %s\n", is_fatal? "fatal ":"", srcfile, srcline, srcfunc? ", function ":"", srcfunc? srcfunc:"", description? description : "no description available"); #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt error: " "%serror in file %s, line %d%s%s: %s", is_fatal? "fatal ":"", srcfile, srcline, srcfunc? ", function ":"", srcfunc? srcfunc:"", description? description : "no description available"); #endif /*HAVE_SYSLOG*/ } /* Perform a state transition to NEW_STATE. If this is an invalid transition, the module will go into a fatal error state. */ static void fips_new_state (enum module_states new_state) { int ok = 0; enum module_states last_state; lock_fsm (); last_state = current_state; switch (current_state) { case STATE_POWERON: if (new_state == STATE_INIT || new_state == STATE_ERROR || new_state == STATE_FATALERROR) ok = 1; break; case STATE_INIT: if (new_state == STATE_SELFTEST || new_state == STATE_ERROR || new_state == STATE_FATALERROR) ok = 1; break; case STATE_SELFTEST: if (new_state == STATE_OPERATIONAL || new_state == STATE_ERROR || new_state == STATE_FATALERROR) ok = 1; break; case STATE_OPERATIONAL: if (new_state == STATE_SHUTDOWN || new_state == STATE_SELFTEST || new_state == STATE_ERROR || new_state == STATE_FATALERROR) ok = 1; break; case STATE_ERROR: if (new_state == STATE_SHUTDOWN || new_state == STATE_ERROR || new_state == STATE_FATALERROR || new_state == STATE_SELFTEST) ok = 1; break; case STATE_FATALERROR: if (new_state == STATE_SHUTDOWN ) ok = 1; break; case STATE_SHUTDOWN: /* We won't see any transition *from* Shutdown because the only allowed new state is Power-Off and that one can't be represented. */ break; } if (ok) { current_state = new_state; } unlock_fsm (); if (!ok || _gcry_log_verbosity (2)) log_info ("libgcrypt state transition %s => %s %s\n", state2str (last_state), state2str (new_state), ok? "granted":"denied"); if (!ok) { /* Invalid state transition. Halting library. */ #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt error: invalid state transition %s => %s", state2str (last_state), state2str (new_state)); #endif /*HAVE_SYSLOG*/ fips_noreturn (); } else if (new_state == STATE_ERROR || new_state == STATE_FATALERROR) { #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_WARNING, "Libgcrypt notice: state transition %s => %s", state2str (last_state), state2str (new_state)); #endif /*HAVE_SYSLOG*/ } } /* This function should be called to ensure that the execution shall not continue. */ void _gcry_fips_noreturn (void) { #ifdef HAVE_SYSLOG syslog (LOG_USER|LOG_ERR, "Libgcrypt terminated the application"); #endif /*HAVE_SYSLOG*/ fflush (NULL); abort (); /*NOTREACHED*/ }