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diff --git a/scd/apdu.c b/scd/apdu.c
index d0b75c872..50363ce4c 100644
--- a/scd/apdu.c
+++ b/scd/apdu.c
@@ -1,4245 +1,4352 @@
/* apdu.c - ISO 7816 APDU functions and low level I/O
* Copyright (C) 2003, 2004, 2008, 2009, 2010,
* 2011 Free Software Foundation, Inc.
*
* 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 <https://www.gnu.org/licenses/>.
*/
/* NOTE: This module is also used by other software, thus the use of
the macro USE_NPTH is mandatory. For GnuPG this macro is
guaranteed to be defined true. */
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <signal.h>
#ifdef USE_NPTH
# include <unistd.h>
# include <fcntl.h>
# include <npth.h>
#endif
/* If requested include the definitions for the remote APDU protocol
code. */
#ifdef USE_G10CODE_RAPDU
#include "rapdu.h"
#endif /*USE_G10CODE_RAPDU*/
#if defined(GNUPG_SCD_MAIN_HEADER)
#include GNUPG_SCD_MAIN_HEADER
#elif GNUPG_MAJOR_VERSION == 1
/* This is used with GnuPG version < 1.9. The code has been source
copied from the current GnuPG >= 1.9 and is maintained over
there. */
#include "options.h"
#include "errors.h"
#include "memory.h"
#include "util.h"
#include "i18n.h"
#include "dynload.h"
#include "cardglue.h"
#else /* GNUPG_MAJOR_VERSION != 1 */
#include "scdaemon.h"
#include "exechelp.h"
#endif /* GNUPG_MAJOR_VERSION != 1 */
#include "host2net.h"
#include "iso7816.h"
#include "apdu.h"
#define CCID_DRIVER_INCLUDE_USB_IDS 1
#include "ccid-driver.h"
+struct dev_list {
+ struct ccid_dev_table *ccid_table;
+ const char *portstr;
+ int idx;
+ int idx_max;
+};
+
/* Due to conflicting use of threading libraries we usually can't link
against libpcsclite if we are using Pth. Instead we use a wrapper
program. Note that with nPth there is no need for a wrapper. */
#ifdef USE_PTH /* Right, plain old Pth. */
#if !defined(HAVE_W32_SYSTEM) && !defined(__CYGWIN__)
#define NEED_PCSC_WRAPPER 1
#endif
#endif
#define MAX_READER 4 /* Number of readers we support concurrently. */
#if defined(_WIN32) || defined(__CYGWIN__)
#define DLSTDCALL __stdcall
#else
#define DLSTDCALL
#endif
#if defined(__APPLE__) || defined(_WIN32) || defined(__CYGWIN__)
typedef unsigned int pcsc_dword_t;
#else
typedef unsigned long pcsc_dword_t;
#endif
/* A structure to collect information pertaining to one reader
slot. */
struct reader_table_s {
int used; /* True if slot is used. */
unsigned short port; /* Port number: 0 = unused, 1 - dev/tty */
/* Function pointers intialized to the various backends. */
int (*connect_card)(int);
int (*disconnect_card)(int);
int (*close_reader)(int);
int (*reset_reader)(int);
int (*get_status_reader)(int, unsigned int *);
int (*send_apdu_reader)(int,unsigned char *,size_t,
unsigned char *, size_t *, pininfo_t *);
int (*check_pinpad)(int, int, pininfo_t *);
void (*dump_status_reader)(int);
int (*set_progress_cb)(int, gcry_handler_progress_t, void*);
int (*pinpad_verify)(int, int, int, int, int, pininfo_t *);
int (*pinpad_modify)(int, int, int, int, int, pininfo_t *);
struct {
ccid_driver_t handle;
} ccid;
struct {
long context;
long card;
pcsc_dword_t protocol;
pcsc_dword_t verify_ioctl;
pcsc_dword_t modify_ioctl;
int pinmin;
int pinmax;
#ifdef NEED_PCSC_WRAPPER
int req_fd;
int rsp_fd;
pid_t pid;
#endif /*NEED_PCSC_WRAPPER*/
} pcsc;
#ifdef USE_G10CODE_RAPDU
struct {
rapdu_t handle;
} rapdu;
#endif /*USE_G10CODE_RAPDU*/
char *rdrname; /* Name of the connected reader or NULL if unknown. */
int is_t0; /* True if we know that we are running T=0. */
int is_spr532; /* True if we know that the reader is a SPR532. */
int pinpad_varlen_supported; /* True if we know that the reader
supports variable length pinpad
input. */
unsigned char atr[33];
size_t atrlen; /* A zero length indicates that the ATR has
not yet been read; i.e. the card is not
ready for use. */
#ifdef USE_NPTH
npth_mutex_t lock;
#endif
};
typedef struct reader_table_s *reader_table_t;
/* A global table to keep track of active readers. */
static struct reader_table_s reader_table[MAX_READER];
#ifdef USE_NPTH
static npth_mutex_t reader_table_lock;
#endif
/* ct API function pointer. */
static char (* DLSTDCALL CT_init) (unsigned short ctn, unsigned short Pn);
static char (* DLSTDCALL CT_data) (unsigned short ctn, unsigned char *dad,
unsigned char *sad, unsigned short lc,
unsigned char *cmd, unsigned short *lr,
unsigned char *rsp);
static char (* DLSTDCALL CT_close) (unsigned short ctn);
/* PC/SC constants and function pointer. */
#define PCSC_SCOPE_USER 0
#define PCSC_SCOPE_TERMINAL 1
#define PCSC_SCOPE_SYSTEM 2
#define PCSC_SCOPE_GLOBAL 3
#define PCSC_PROTOCOL_T0 1
#define PCSC_PROTOCOL_T1 2
#ifdef HAVE_W32_SYSTEM
# define PCSC_PROTOCOL_RAW 0x00010000 /* The active protocol. */
#else
# define PCSC_PROTOCOL_RAW 4
#endif
#define PCSC_SHARE_EXCLUSIVE 1
#define PCSC_SHARE_SHARED 2
#define PCSC_SHARE_DIRECT 3
#define PCSC_LEAVE_CARD 0
#define PCSC_RESET_CARD 1
#define PCSC_UNPOWER_CARD 2
#define PCSC_EJECT_CARD 3
#ifdef HAVE_W32_SYSTEM
# define PCSC_UNKNOWN 0x0000 /* The driver is not aware of the status. */
# define PCSC_ABSENT 0x0001 /* Card is absent. */
# define PCSC_PRESENT 0x0002 /* Card is present. */
# define PCSC_SWALLOWED 0x0003 /* Card is present and electrical connected. */
# define PCSC_POWERED 0x0004 /* Card is powered. */
# define PCSC_NEGOTIABLE 0x0005 /* Card is awaiting PTS. */
# define PCSC_SPECIFIC 0x0006 /* Card is ready for use. */
#else
# define PCSC_UNKNOWN 0x0001
# define PCSC_ABSENT 0x0002 /* Card is absent. */
# define PCSC_PRESENT 0x0004 /* Card is present. */
# define PCSC_SWALLOWED 0x0008 /* Card is present and electrical connected. */
# define PCSC_POWERED 0x0010 /* Card is powered. */
# define PCSC_NEGOTIABLE 0x0020 /* Card is awaiting PTS. */
# define PCSC_SPECIFIC 0x0040 /* Card is ready for use. */
#endif
#define PCSC_STATE_UNAWARE 0x0000 /* Want status. */
#define PCSC_STATE_IGNORE 0x0001 /* Ignore this reader. */
#define PCSC_STATE_CHANGED 0x0002 /* State has changed. */
#define PCSC_STATE_UNKNOWN 0x0004 /* Reader unknown. */
#define PCSC_STATE_UNAVAILABLE 0x0008 /* Status unavailable. */
#define PCSC_STATE_EMPTY 0x0010 /* Card removed. */
#define PCSC_STATE_PRESENT 0x0020 /* Card inserted. */
#define PCSC_STATE_ATRMATCH 0x0040 /* ATR matches card. */
#define PCSC_STATE_EXCLUSIVE 0x0080 /* Exclusive Mode. */
#define PCSC_STATE_INUSE 0x0100 /* Shared mode. */
#define PCSC_STATE_MUTE 0x0200 /* Unresponsive card. */
#ifdef HAVE_W32_SYSTEM
# define PCSC_STATE_UNPOWERED 0x0400 /* Card not powerred up. */
#endif
/* Some PC/SC error codes. */
#define PCSC_E_CANCELLED 0x80100002
#define PCSC_E_CANT_DISPOSE 0x8010000E
#define PCSC_E_INSUFFICIENT_BUFFER 0x80100008
#define PCSC_E_INVALID_ATR 0x80100015
#define PCSC_E_INVALID_HANDLE 0x80100003
#define PCSC_E_INVALID_PARAMETER 0x80100004
#define PCSC_E_INVALID_TARGET 0x80100005
#define PCSC_E_INVALID_VALUE 0x80100011
#define PCSC_E_NO_MEMORY 0x80100006
#define PCSC_E_UNKNOWN_READER 0x80100009
#define PCSC_E_TIMEOUT 0x8010000A
#define PCSC_E_SHARING_VIOLATION 0x8010000B
#define PCSC_E_NO_SMARTCARD 0x8010000C
#define PCSC_E_UNKNOWN_CARD 0x8010000D
#define PCSC_E_PROTO_MISMATCH 0x8010000F
#define PCSC_E_NOT_READY 0x80100010
#define PCSC_E_SYSTEM_CANCELLED 0x80100012
#define PCSC_E_NOT_TRANSACTED 0x80100016
#define PCSC_E_READER_UNAVAILABLE 0x80100017
#define PCSC_E_NO_SERVICE 0x8010001D
#define PCSC_E_SERVICE_STOPPED 0x8010001E
#define PCSC_W_REMOVED_CARD 0x80100069
/* Fix pcsc-lite ABI incompatibilty. */
#ifndef SCARD_CTL_CODE
#ifdef _WIN32
#include <winioctl.h>
#define SCARD_CTL_CODE(code) CTL_CODE(FILE_DEVICE_SMARTCARD, (code), \
METHOD_BUFFERED, FILE_ANY_ACCESS)
#else
#define SCARD_CTL_CODE(code) (0x42000000 + (code))
#endif
#endif
#define CM_IOCTL_GET_FEATURE_REQUEST SCARD_CTL_CODE(3400)
#define CM_IOCTL_VENDOR_IFD_EXCHANGE SCARD_CTL_CODE(1)
#define FEATURE_VERIFY_PIN_DIRECT 0x06
#define FEATURE_MODIFY_PIN_DIRECT 0x07
#define FEATURE_GET_TLV_PROPERTIES 0x12
#define PCSCv2_PART10_PROPERTY_bEntryValidationCondition 2
#define PCSCv2_PART10_PROPERTY_bTimeOut2 3
#define PCSCv2_PART10_PROPERTY_bMinPINSize 6
#define PCSCv2_PART10_PROPERTY_bMaxPINSize 7
#define PCSCv2_PART10_PROPERTY_wIdVendor 11
#define PCSCv2_PART10_PROPERTY_wIdProduct 12
/* The PC/SC error is defined as a long as per specs. Due to left
shifts bit 31 will get sign extended. We use this mask to fix
it. */
#define PCSC_ERR_MASK(a) ((a) & 0xffffffff)
struct pcsc_io_request_s
{
unsigned long protocol;
unsigned long pci_len;
};
typedef struct pcsc_io_request_s *pcsc_io_request_t;
#ifdef __APPLE__
#pragma pack(1)
#endif
struct pcsc_readerstate_s
{
const char *reader;
void *user_data;
pcsc_dword_t current_state;
pcsc_dword_t event_state;
pcsc_dword_t atrlen;
unsigned char atr[33];
};
#ifdef __APPLE__
#pragma pack()
#endif
typedef struct pcsc_readerstate_s *pcsc_readerstate_t;
long (* DLSTDCALL pcsc_establish_context) (pcsc_dword_t scope,
const void *reserved1,
const void *reserved2,
long *r_context);
long (* DLSTDCALL pcsc_release_context) (long context);
long (* DLSTDCALL pcsc_list_readers) (long context,
const char *groups,
char *readers, pcsc_dword_t*readerslen);
long (* DLSTDCALL pcsc_get_status_change) (long context,
pcsc_dword_t timeout,
pcsc_readerstate_t readerstates,
pcsc_dword_t nreaderstates);
long (* DLSTDCALL pcsc_connect) (long context,
const char *reader,
pcsc_dword_t share_mode,
pcsc_dword_t preferred_protocols,
long *r_card,
pcsc_dword_t *r_active_protocol);
long (* DLSTDCALL pcsc_reconnect) (long card,
pcsc_dword_t share_mode,
pcsc_dword_t preferred_protocols,
pcsc_dword_t initialization,
pcsc_dword_t *r_active_protocol);
long (* DLSTDCALL pcsc_disconnect) (long card,
pcsc_dword_t disposition);
long (* DLSTDCALL pcsc_status) (long card,
char *reader, pcsc_dword_t *readerlen,
pcsc_dword_t *r_state,
pcsc_dword_t *r_protocol,
unsigned char *atr, pcsc_dword_t *atrlen);
long (* DLSTDCALL pcsc_begin_transaction) (long card);
long (* DLSTDCALL pcsc_end_transaction) (long card,
pcsc_dword_t disposition);
long (* DLSTDCALL pcsc_transmit) (long card,
const pcsc_io_request_t send_pci,
const unsigned char *send_buffer,
pcsc_dword_t send_len,
pcsc_io_request_t recv_pci,
unsigned char *recv_buffer,
pcsc_dword_t *recv_len);
long (* DLSTDCALL pcsc_set_timeout) (long context,
pcsc_dword_t timeout);
long (* DLSTDCALL pcsc_control) (long card,
pcsc_dword_t control_code,
const void *send_buffer,
pcsc_dword_t send_len,
void *recv_buffer,
pcsc_dword_t recv_len,
pcsc_dword_t *bytes_returned);
/* Prototypes. */
static int pcsc_vendor_specific_init (int slot);
static int pcsc_get_status (int slot, unsigned int *status);
static int reset_pcsc_reader (int slot);
static int apdu_get_status_internal (int slot, int hang, int no_atr_reset,
unsigned int *status);
static int check_pcsc_pinpad (int slot, int command, pininfo_t *pininfo);
static int pcsc_pinpad_verify (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo);
static int pcsc_pinpad_modify (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo);
/*
Helper
*/
static int
lock_slot (int slot)
{
#ifdef USE_NPTH
int err;
err = npth_mutex_lock (&reader_table[slot].lock);
if (err)
{
log_error ("failed to acquire apdu lock: %s\n", strerror (err));
return SW_HOST_LOCKING_FAILED;
}
#endif /*USE_NPTH*/
return 0;
}
static int
trylock_slot (int slot)
{
#ifdef USE_NPTH
int err;
err = npth_mutex_trylock (&reader_table[slot].lock);
if (err == EBUSY)
return SW_HOST_BUSY;
else if (err)
{
log_error ("failed to acquire apdu lock: %s\n", strerror (err));
return SW_HOST_LOCKING_FAILED;
}
#endif /*USE_NPTH*/
return 0;
}
static void
unlock_slot (int slot)
{
#ifdef USE_NPTH
int err;
err = npth_mutex_unlock (&reader_table[slot].lock);
if (err)
log_error ("failed to release apdu lock: %s\n", strerror (errno));
#endif /*USE_NPTH*/
}
/* Find an unused reader slot for PORTSTR and put it into the reader
table. Return -1 on error or the index into the reader table.
Acquire slot's lock on successful return. Caller needs to unlock it. */
static int
new_reader_slot (void)
{
int i, reader = -1;
- npth_mutex_lock (&reader_table_lock);
for (i=0; i < MAX_READER; i++)
if (!reader_table[i].used)
{
reader = i;
reader_table[reader].used = 1;
break;
}
- npth_mutex_unlock (&reader_table_lock);
if (reader == -1)
{
log_error ("new_reader_slot: out of slots\n");
return -1;
}
if (lock_slot (reader))
{
reader_table[reader].used = 0;
return -1;
}
reader_table[reader].connect_card = NULL;
reader_table[reader].disconnect_card = NULL;
reader_table[reader].close_reader = NULL;
reader_table[reader].reset_reader = NULL;
reader_table[reader].get_status_reader = NULL;
reader_table[reader].send_apdu_reader = NULL;
reader_table[reader].check_pinpad = check_pcsc_pinpad;
reader_table[reader].dump_status_reader = NULL;
reader_table[reader].set_progress_cb = NULL;
reader_table[reader].pinpad_verify = pcsc_pinpad_verify;
reader_table[reader].pinpad_modify = pcsc_pinpad_modify;
reader_table[reader].is_t0 = 1;
reader_table[reader].is_spr532 = 0;
reader_table[reader].pinpad_varlen_supported = 0;
#ifdef NEED_PCSC_WRAPPER
reader_table[reader].pcsc.req_fd = -1;
reader_table[reader].pcsc.rsp_fd = -1;
reader_table[reader].pcsc.pid = (pid_t)(-1);
#endif
reader_table[reader].pcsc.verify_ioctl = 0;
reader_table[reader].pcsc.modify_ioctl = 0;
reader_table[reader].pcsc.pinmin = -1;
reader_table[reader].pcsc.pinmax = -1;
return reader;
}
static void
dump_reader_status (int slot)
{
if (!opt.verbose)
return;
if (reader_table[slot].dump_status_reader)
reader_table[slot].dump_status_reader (slot);
if (reader_table[slot].atrlen)
{
log_info ("slot %d: ATR=", slot);
log_printhex ("", reader_table[slot].atr, reader_table[slot].atrlen);
}
}
static const char *
host_sw_string (long err)
{
switch (err)
{
case 0: return "okay";
case SW_HOST_OUT_OF_CORE: return "out of core";
case SW_HOST_INV_VALUE: return "invalid value";
case SW_HOST_NO_DRIVER: return "no driver";
case SW_HOST_NOT_SUPPORTED: return "not supported";
case SW_HOST_LOCKING_FAILED: return "locking failed";
case SW_HOST_BUSY: return "busy";
case SW_HOST_NO_CARD: return "no card";
case SW_HOST_CARD_INACTIVE: return "card inactive";
case SW_HOST_CARD_IO_ERROR: return "card I/O error";
case SW_HOST_GENERAL_ERROR: return "general error";
case SW_HOST_NO_READER: return "no reader";
case SW_HOST_ABORTED: return "aborted";
case SW_HOST_NO_PINPAD: return "no pinpad";
case SW_HOST_ALREADY_CONNECTED: return "already connected";
default: return "unknown host status error";
}
}
const char *
apdu_strerror (int rc)
{
switch (rc)
{
case SW_EOF_REACHED : return "eof reached";
case SW_EEPROM_FAILURE : return "eeprom failure";
case SW_WRONG_LENGTH : return "wrong length";
case SW_CHV_WRONG : return "CHV wrong";
case SW_CHV_BLOCKED : return "CHV blocked";
case SW_REF_DATA_INV : return "referenced data invalidated";
case SW_USE_CONDITIONS : return "use conditions not satisfied";
case SW_BAD_PARAMETER : return "bad parameter";
case SW_NOT_SUPPORTED : return "not supported";
case SW_FILE_NOT_FOUND : return "file not found";
case SW_RECORD_NOT_FOUND:return "record not found";
case SW_REF_NOT_FOUND : return "reference not found";
case SW_NOT_ENOUGH_MEMORY: return "not enough memory space in the file";
case SW_INCONSISTENT_LC: return "Lc inconsistent with TLV structure.";
case SW_INCORRECT_P0_P1: return "incorrect parameters P0,P1";
case SW_BAD_LC : return "Lc inconsistent with P0,P1";
case SW_BAD_P0_P1 : return "bad P0,P1";
case SW_INS_NOT_SUP : return "instruction not supported";
case SW_CLA_NOT_SUP : return "class not supported";
case SW_SUCCESS : return "success";
default:
if ((rc & ~0x00ff) == SW_MORE_DATA)
return "more data available";
if ( (rc & 0x10000) )
return host_sw_string (rc);
return "unknown status error";
}
}
/*
ct API Interface
*/
static const char *
ct_error_string (long err)
{
switch (err)
{
case 0: return "okay";
case -1: return "invalid data";
case -8: return "ct error";
case -10: return "transmission error";
case -11: return "memory allocation error";
case -128: return "HTSI error";
default: return "unknown CT-API error";
}
}
/* Wait for the card in SLOT and activate it. Return a status word
error or 0 on success. */
static int
ct_activate_card (int slot)
{
int rc;
unsigned char dad[1], sad[1], cmd[11], buf[256];
unsigned short buflen;
/* Check whether card has been inserted. */
dad[0] = 1; /* Destination address: CT. */
sad[0] = 2; /* Source address: Host. */
cmd[0] = 0x20; /* Class byte. */
cmd[1] = 0x13; /* Request status. */
cmd[2] = 0x00; /* From kernel. */
cmd[3] = 0x80; /* Return card's DO. */
cmd[4] = 0x00;
buflen = DIM(buf);
rc = CT_data (slot, dad, sad, 5, cmd, &buflen, buf);
if (rc || buflen < 2 || buf[buflen-2] != 0x90)
{
log_error ("ct_activate_card: can't get status of reader %d: %s\n",
slot, ct_error_string (rc));
return SW_HOST_CARD_IO_ERROR;
}
/* Connected, now activate the card. */
dad[0] = 1; /* Destination address: CT. */
sad[0] = 2; /* Source address: Host. */
cmd[0] = 0x20; /* Class byte. */
cmd[1] = 0x12; /* Request ICC. */
cmd[2] = 0x01; /* From first interface. */
cmd[3] = 0x01; /* Return card's ATR. */
cmd[4] = 0x00;
buflen = DIM(buf);
rc = CT_data (slot, dad, sad, 5, cmd, &buflen, buf);
if (rc || buflen < 2 || buf[buflen-2] != 0x90)
{
log_error ("ct_activate_card(%d): activation failed: %s\n",
slot, ct_error_string (rc));
if (!rc)
log_printhex (" received data:", buf, buflen);
return SW_HOST_CARD_IO_ERROR;
}
/* Store the type and the ATR. */
if (buflen - 2 > DIM (reader_table[0].atr))
{
log_error ("ct_activate_card(%d): ATR too long\n", slot);
return SW_HOST_CARD_IO_ERROR;
}
memcpy (reader_table[slot].atr, buf, buflen - 2);
reader_table[slot].atrlen = buflen - 2;
return 0;
}
static int
close_ct_reader (int slot)
{
CT_close (slot);
return 0;
}
static int
reset_ct_reader (int slot)
{
/* FIXME: Check is this is sufficient do do a reset. */
return ct_activate_card (slot);
}
static int
ct_get_status (int slot, unsigned int *status)
{
(void)slot;
/* The status we returned is wrong but we don't care because ctAPI
is not anymore required. */
*status = APDU_CARD_USABLE|APDU_CARD_PRESENT|APDU_CARD_ACTIVE;
return 0;
}
/* Actually send the APDU of length APDULEN to SLOT and return a
maximum of *BUFLEN data in BUFFER, the actual returned size will be
set to BUFLEN. Returns: CT API error code. */
static int
ct_send_apdu (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen, pininfo_t *pininfo)
{
int rc;
unsigned char dad[1], sad[1];
unsigned short ctbuflen;
(void)pininfo;
/* If we don't have an ATR, we need to reset the reader first. */
if (!reader_table[slot].atrlen
&& (rc = reset_ct_reader (slot)))
return rc;
dad[0] = 0; /* Destination address: Card. */
sad[0] = 2; /* Source address: Host. */
ctbuflen = *buflen;
if (DBG_CARD_IO)
log_printhex (" CT_data:", apdu, apdulen);
rc = CT_data (slot, dad, sad, apdulen, apdu, &ctbuflen, buffer);
*buflen = ctbuflen;
return rc? SW_HOST_CARD_IO_ERROR: 0;
}
/* Open a reader and return an internal handle for it. PORT is a
non-negative value with the port number of the reader. USB readers
do have port numbers starting at 32769. */
static int
open_ct_reader (int port)
{
int rc, reader;
if (port < 0 || port > 0xffff)
{
log_error ("open_ct_reader: invalid port %d requested\n", port);
return -1;
}
reader = new_reader_slot ();
if (reader == -1)
return reader;
reader_table[reader].port = port;
rc = CT_init (reader, (unsigned short)port);
if (rc)
{
log_error ("apdu_open_ct_reader failed on port %d: %s\n",
port, ct_error_string (rc));
reader_table[reader].used = 0;
unlock_slot (reader);
return -1;
}
/* Only try to activate the card. */
rc = ct_activate_card (reader);
if (rc)
{
reader_table[reader].atrlen = 0;
rc = 0;
}
reader_table[reader].close_reader = close_ct_reader;
reader_table[reader].reset_reader = reset_ct_reader;
reader_table[reader].get_status_reader = ct_get_status;
reader_table[reader].send_apdu_reader = ct_send_apdu;
reader_table[reader].check_pinpad = NULL;
reader_table[reader].dump_status_reader = NULL;
reader_table[reader].pinpad_verify = NULL;
reader_table[reader].pinpad_modify = NULL;
dump_reader_status (reader);
unlock_slot (reader);
return reader;
}
/*
PC/SC Interface
*/
#ifdef NEED_PCSC_WRAPPER
static int
writen (int fd, const void *buf, size_t nbytes)
{
size_t nleft = nbytes;
int nwritten;
/* log_printhex (" writen:", buf, nbytes); */
while (nleft > 0)
{
#ifdef USE_NPTH
nwritten = npth_write (fd, buf, nleft);
#else
nwritten = write (fd, buf, nleft);
#endif
if (nwritten < 0 && errno == EINTR)
continue;
if (nwritten < 0)
return -1;
nleft -= nwritten;
buf = (const char*)buf + nwritten;
}
return 0;
}
/* Read up to BUFLEN bytes from FD and return the number of bytes
actually read in NREAD. Returns -1 on error or 0 on success. */
static int
readn (int fd, void *buf, size_t buflen, size_t *nread)
{
size_t nleft = buflen;
int n;
/* void *orig_buf = buf; */
while (nleft > 0)
{
#ifdef USE_NPTH
# ifdef HAVE_W32_SYSTEM
# error Cannot use npth_read here because it expects a system HANDLE.
# endif
n = npth_read (fd, buf, nleft);
#else
n = read (fd, buf, nleft);
#endif
if (n < 0 && errno == EINTR)
continue;
if (n < 0)
return -1; /* read error. */
if (!n)
break; /* EOF */
nleft -= n;
buf = (char*)buf + n;
}
if (nread)
*nread = buflen - nleft;
/* log_printhex (" readn:", orig_buf, *nread); */
return 0;
}
#endif /*NEED_PCSC_WRAPPER*/
static const char *
pcsc_error_string (long err)
{
const char *s;
if (!err)
return "okay";
if ((err & 0x80100000) != 0x80100000)
return "invalid PC/SC error code";
err &= 0xffff;
switch (err)
{
case 0x0002: s = "cancelled"; break;
case 0x000e: s = "can't dispose"; break;
case 0x0008: s = "insufficient buffer"; break;
case 0x0015: s = "invalid ATR"; break;
case 0x0003: s = "invalid handle"; break;
case 0x0004: s = "invalid parameter"; break;
case 0x0005: s = "invalid target"; break;
case 0x0011: s = "invalid value"; break;
case 0x0006: s = "no memory"; break;
case 0x0013: s = "comm error"; break;
case 0x0001: s = "internal error"; break;
case 0x0014: s = "unknown error"; break;
case 0x0007: s = "waited too long"; break;
case 0x0009: s = "unknown reader"; break;
case 0x000a: s = "timeout"; break;
case 0x000b: s = "sharing violation"; break;
case 0x000c: s = "no smartcard"; break;
case 0x000d: s = "unknown card"; break;
case 0x000f: s = "proto mismatch"; break;
case 0x0010: s = "not ready"; break;
case 0x0012: s = "system cancelled"; break;
case 0x0016: s = "not transacted"; break;
case 0x0017: s = "reader unavailable"; break;
case 0x0065: s = "unsupported card"; break;
case 0x0066: s = "unresponsive card"; break;
case 0x0067: s = "unpowered card"; break;
case 0x0068: s = "reset card"; break;
case 0x0069: s = "removed card"; break;
case 0x006a: s = "inserted card"; break;
case 0x001f: s = "unsupported feature"; break;
case 0x0019: s = "PCI too small"; break;
case 0x001a: s = "reader unsupported"; break;
case 0x001b: s = "duplicate reader"; break;
case 0x001c: s = "card unsupported"; break;
case 0x001d: s = "no service"; break;
case 0x001e: s = "service stopped"; break;
default: s = "unknown PC/SC error code"; break;
}
return s;
}
/* Map PC/SC error codes to our special host status words. */
static int
pcsc_error_to_sw (long ec)
{
int rc;
switch ( PCSC_ERR_MASK (ec) )
{
case 0: rc = 0; break;
case PCSC_E_CANCELLED: rc = SW_HOST_ABORTED; break;
case PCSC_E_NO_MEMORY: rc = SW_HOST_OUT_OF_CORE; break;
case PCSC_E_TIMEOUT: rc = SW_HOST_CARD_IO_ERROR; break;
case PCSC_E_NO_SERVICE:
case PCSC_E_SERVICE_STOPPED:
case PCSC_E_UNKNOWN_READER: rc = SW_HOST_NO_READER; break;
case PCSC_E_SHARING_VIOLATION: rc = SW_HOST_LOCKING_FAILED; break;
case PCSC_E_NO_SMARTCARD: rc = SW_HOST_NO_CARD; break;
case PCSC_W_REMOVED_CARD: rc = SW_HOST_NO_CARD; break;
case PCSC_E_INVALID_TARGET:
case PCSC_E_INVALID_VALUE:
case PCSC_E_INVALID_HANDLE:
case PCSC_E_INVALID_PARAMETER:
case PCSC_E_INSUFFICIENT_BUFFER: rc = SW_HOST_INV_VALUE; break;
default: rc = SW_HOST_GENERAL_ERROR; break;
}
return rc;
}
static void
dump_pcsc_reader_status (int slot)
{
if (reader_table[slot].pcsc.card)
{
log_info ("reader slot %d: active protocol:", slot);
if ((reader_table[slot].pcsc.protocol & PCSC_PROTOCOL_T0))
log_printf (" T0");
else if ((reader_table[slot].pcsc.protocol & PCSC_PROTOCOL_T1))
log_printf (" T1");
else if ((reader_table[slot].pcsc.protocol & PCSC_PROTOCOL_RAW))
log_printf (" raw");
log_printf ("\n");
}
else
log_info ("reader slot %d: not connected\n", slot);
}
#ifndef NEED_PCSC_WRAPPER
static int
pcsc_get_status_direct (int slot, unsigned int *status)
{
long err;
struct pcsc_readerstate_s rdrstates[1];
memset (rdrstates, 0, sizeof *rdrstates);
rdrstates[0].reader = reader_table[slot].rdrname;
rdrstates[0].current_state = PCSC_STATE_UNAWARE;
err = pcsc_get_status_change (reader_table[slot].pcsc.context,
0,
rdrstates, 1);
if (err == PCSC_E_TIMEOUT)
err = 0; /* Timeout is no error error here. */
if (err)
{
log_error ("pcsc_get_status_change failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return pcsc_error_to_sw (err);
}
/* log_debug */
/* ("pcsc_get_status_change: %s%s%s%s%s%s%s%s%s%s\n", */
/* (rdrstates[0].event_state & PCSC_STATE_IGNORE)? " ignore":"", */
/* (rdrstates[0].event_state & PCSC_STATE_CHANGED)? " changed":"", */
/* (rdrstates[0].event_state & PCSC_STATE_UNKNOWN)? " unknown":"", */
/* (rdrstates[0].event_state & PCSC_STATE_UNAVAILABLE)?" unavail":"", */
/* (rdrstates[0].event_state & PCSC_STATE_EMPTY)? " empty":"", */
/* (rdrstates[0].event_state & PCSC_STATE_PRESENT)? " present":"", */
/* (rdrstates[0].event_state & PCSC_STATE_ATRMATCH)? " atr":"", */
/* (rdrstates[0].event_state & PCSC_STATE_EXCLUSIVE)? " excl":"", */
/* (rdrstates[0].event_state & PCSC_STATE_INUSE)? " unuse":"", */
/* (rdrstates[0].event_state & PCSC_STATE_MUTE)? " mute":"" ); */
*status = 0;
if ( (rdrstates[0].event_state & PCSC_STATE_PRESENT) )
{
*status |= APDU_CARD_PRESENT;
if ( !(rdrstates[0].event_state & PCSC_STATE_MUTE) )
*status |= APDU_CARD_ACTIVE;
}
#ifndef HAVE_W32_SYSTEM
/* We indicate a useful card if it is not in use by another
application. This is because we only use exclusive access
mode. */
if ( (*status & (APDU_CARD_PRESENT|APDU_CARD_ACTIVE))
== (APDU_CARD_PRESENT|APDU_CARD_ACTIVE)
&& !(rdrstates[0].event_state & PCSC_STATE_INUSE) )
*status |= APDU_CARD_USABLE;
#else
/* Some winscard drivers may set EXCLUSIVE and INUSE at the same
time when we are the only user (SCM SCR335) under Windows. */
if ((*status & (APDU_CARD_PRESENT|APDU_CARD_ACTIVE))
== (APDU_CARD_PRESENT|APDU_CARD_ACTIVE))
*status |= APDU_CARD_USABLE;
#endif
return 0;
}
#endif /*!NEED_PCSC_WRAPPER*/
#ifdef NEED_PCSC_WRAPPER
static int
pcsc_get_status_wrapped (int slot, unsigned int *status)
{
long err;
reader_table_t slotp;
size_t len, full_len;
int i, n;
unsigned char msgbuf[9];
unsigned char buffer[16];
int sw = SW_HOST_CARD_IO_ERROR;
slotp = reader_table + slot;
if (slotp->pcsc.req_fd == -1
|| slotp->pcsc.rsp_fd == -1
|| slotp->pcsc.pid == (pid_t)(-1) )
{
log_error ("pcsc_get_status: pcsc-wrapper not running\n");
return sw;
}
msgbuf[0] = 0x04; /* STATUS command. */
len = 0;
msgbuf[1] = (len >> 24);
msgbuf[2] = (len >> 16);
msgbuf[3] = (len >> 8);
msgbuf[4] = (len );
if ( writen (slotp->pcsc.req_fd, msgbuf, 5) )
{
log_error ("error sending PC/SC STATUS request: %s\n",
strerror (errno));
goto command_failed;
}
/* Read the response. */
if ((i=readn (slotp->pcsc.rsp_fd, msgbuf, 9, &len)) || len != 9)
{
log_error ("error receiving PC/SC STATUS response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
len = buf_to_size_t (msgbuf+1);
if (msgbuf[0] != 0x81 || len < 4)
{
log_error ("invalid response header from PC/SC received\n");
goto command_failed;
}
len -= 4; /* Already read the error code. */
err = PCSC_ERR_MASK (buf32_to_ulong (msgbuf+5));
if (err)
{
log_error ("pcsc_status failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
/* This is a proper error code, so return immediately. */
return pcsc_error_to_sw (err);
}
full_len = len;
/* The current version returns 3 words but we allow also for old
versions returning only 2 words. */
n = 12 < len ? 12 : len;
if ((i=readn (slotp->pcsc.rsp_fd, buffer, n, &len))
|| (len != 8 && len != 12))
{
log_error ("error receiving PC/SC STATUS response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
slotp->is_t0 = (len == 12 && !!(buffer[11] & PCSC_PROTOCOL_T0));
full_len -= len;
/* Newer versions of the wrapper might send more status bytes.
Read them. */
while (full_len)
{
unsigned char dummybuf[128];
n = full_len < DIM (dummybuf) ? full_len : DIM (dummybuf);
if ((i=readn (slotp->pcsc.rsp_fd, dummybuf, n, &len)) || len != n)
{
log_error ("error receiving PC/SC TRANSMIT response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
full_len -= n;
}
/* We are lucky: The wrapper already returns the data in the
required format. */
*status = buffer[3];
return 0;
command_failed:
close (slotp->pcsc.req_fd);
close (slotp->pcsc.rsp_fd);
slotp->pcsc.req_fd = -1;
slotp->pcsc.rsp_fd = -1;
if (slotp->pcsc.pid != -1)
kill (slotp->pcsc.pid, SIGTERM);
slotp->pcsc.pid = (pid_t)(-1);
slotp->used = 0;
return sw;
}
#endif /*NEED_PCSC_WRAPPER*/
static int
pcsc_get_status (int slot, unsigned int *status)
{
#ifdef NEED_PCSC_WRAPPER
return pcsc_get_status_wrapped (slot, status);
#else
return pcsc_get_status_direct (slot, status);
#endif
}
#ifndef NEED_PCSC_WRAPPER
static int
pcsc_send_apdu_direct (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen,
pininfo_t *pininfo)
{
long err;
struct pcsc_io_request_s send_pci;
pcsc_dword_t recv_len;
(void)pininfo;
if (!reader_table[slot].atrlen
&& (err = reset_pcsc_reader (slot)))
return err;
if (DBG_CARD_IO)
log_printhex (" PCSC_data:", apdu, apdulen);
if ((reader_table[slot].pcsc.protocol & PCSC_PROTOCOL_T1))
send_pci.protocol = PCSC_PROTOCOL_T1;
else
send_pci.protocol = PCSC_PROTOCOL_T0;
send_pci.pci_len = sizeof send_pci;
recv_len = *buflen;
err = pcsc_transmit (reader_table[slot].pcsc.card,
&send_pci, apdu, apdulen,
NULL, buffer, &recv_len);
*buflen = recv_len;
if (err)
log_error ("pcsc_transmit failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return pcsc_error_to_sw (err);
}
#endif /*!NEED_PCSC_WRAPPER*/
#ifdef NEED_PCSC_WRAPPER
static int
pcsc_send_apdu_wrapped (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen,
pininfo_t *pininfo)
{
long err;
reader_table_t slotp;
size_t len, full_len;
int i, n;
unsigned char msgbuf[9];
int sw = SW_HOST_CARD_IO_ERROR;
(void)pininfo;
if (!reader_table[slot].atrlen
&& (err = reset_pcsc_reader (slot)))
return err;
if (DBG_CARD_IO)
log_printhex (" PCSC_data:", apdu, apdulen);
slotp = reader_table + slot;
if (slotp->pcsc.req_fd == -1
|| slotp->pcsc.rsp_fd == -1
|| slotp->pcsc.pid == (pid_t)(-1) )
{
log_error ("pcsc_send_apdu: pcsc-wrapper not running\n");
return sw;
}
msgbuf[0] = 0x03; /* TRANSMIT command. */
len = apdulen;
msgbuf[1] = (len >> 24);
msgbuf[2] = (len >> 16);
msgbuf[3] = (len >> 8);
msgbuf[4] = (len );
if ( writen (slotp->pcsc.req_fd, msgbuf, 5)
|| writen (slotp->pcsc.req_fd, apdu, len))
{
log_error ("error sending PC/SC TRANSMIT request: %s\n",
strerror (errno));
goto command_failed;
}
/* Read the response. */
if ((i=readn (slotp->pcsc.rsp_fd, msgbuf, 9, &len)) || len != 9)
{
log_error ("error receiving PC/SC TRANSMIT response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
len = buf_to_size_t (msgbuf+1);
if (msgbuf[0] != 0x81 || len < 4)
{
log_error ("invalid response header from PC/SC received\n");
goto command_failed;
}
len -= 4; /* Already read the error code. */
err = PCSC_ERR_MASK (buf32_to_ulong (msgbuf+5));
if (err)
{
log_error ("pcsc_transmit failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return pcsc_error_to_sw (err);
}
full_len = len;
n = *buflen < len ? *buflen : len;
if ((i=readn (slotp->pcsc.rsp_fd, buffer, n, &len)) || len != n)
{
log_error ("error receiving PC/SC TRANSMIT response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
*buflen = n;
full_len -= len;
if (full_len)
{
log_error ("pcsc_send_apdu: provided buffer too short - truncated\n");
err = SW_HOST_INV_VALUE;
}
/* We need to read any rest of the response, to keep the
protocol running. */
while (full_len)
{
unsigned char dummybuf[128];
n = full_len < DIM (dummybuf) ? full_len : DIM (dummybuf);
if ((i=readn (slotp->pcsc.rsp_fd, dummybuf, n, &len)) || len != n)
{
log_error ("error receiving PC/SC TRANSMIT response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
full_len -= n;
}
return err;
command_failed:
close (slotp->pcsc.req_fd);
close (slotp->pcsc.rsp_fd);
slotp->pcsc.req_fd = -1;
slotp->pcsc.rsp_fd = -1;
if (slotp->pcsc.pid != -1)
kill (slotp->pcsc.pid, SIGTERM);
slotp->pcsc.pid = (pid_t)(-1);
slotp->used = 0;
return sw;
}
#endif /*NEED_PCSC_WRAPPER*/
/* Send the APDU of length APDULEN to SLOT and return a maximum of
*BUFLEN data in BUFFER, the actual returned size will be stored at
BUFLEN. Returns: A status word. */
static int
pcsc_send_apdu (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen,
pininfo_t *pininfo)
{
#ifdef NEED_PCSC_WRAPPER
return pcsc_send_apdu_wrapped (slot, apdu, apdulen, buffer, buflen, pininfo);
#else
return pcsc_send_apdu_direct (slot, apdu, apdulen, buffer, buflen, pininfo);
#endif
}
#ifndef NEED_PCSC_WRAPPER
static int
control_pcsc_direct (int slot, pcsc_dword_t ioctl_code,
const unsigned char *cntlbuf, size_t len,
unsigned char *buffer, pcsc_dword_t *buflen)
{
long err;
err = pcsc_control (reader_table[slot].pcsc.card, ioctl_code,
cntlbuf, len, buffer, buflen? *buflen:0, buflen);
if (err)
{
log_error ("pcsc_control failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return pcsc_error_to_sw (err);
}
return 0;
}
#endif /*!NEED_PCSC_WRAPPER*/
#ifdef NEED_PCSC_WRAPPER
static int
control_pcsc_wrapped (int slot, pcsc_dword_t ioctl_code,
const unsigned char *cntlbuf, size_t len,
unsigned char *buffer, pcsc_dword_t *buflen)
{
long err = PCSC_E_NOT_TRANSACTED;
reader_table_t slotp;
unsigned char msgbuf[9];
int i, n;
size_t full_len;
slotp = reader_table + slot;
msgbuf[0] = 0x06; /* CONTROL command. */
msgbuf[1] = ((len + 4) >> 24);
msgbuf[2] = ((len + 4) >> 16);
msgbuf[3] = ((len + 4) >> 8);
msgbuf[4] = ((len + 4) );
msgbuf[5] = (ioctl_code >> 24);
msgbuf[6] = (ioctl_code >> 16);
msgbuf[7] = (ioctl_code >> 8);
msgbuf[8] = (ioctl_code );
if ( writen (slotp->pcsc.req_fd, msgbuf, 9)
|| writen (slotp->pcsc.req_fd, cntlbuf, len))
{
log_error ("error sending PC/SC CONTROL request: %s\n",
strerror (errno));
goto command_failed;
}
/* Read the response. */
if ((i=readn (slotp->pcsc.rsp_fd, msgbuf, 9, &len)) || len != 9)
{
log_error ("error receiving PC/SC CONTROL response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
len = buf32_to_size_t (msgbuf+1);
if (msgbuf[0] != 0x81 || len < 4)
{
log_error ("invalid response header from PC/SC received\n");
goto command_failed;
}
len -= 4; /* Already read the error code. */
err = PCSC_ERR_MASK (buf32_to_ulong (msgbuf+5));
if (err)
{
log_error ("pcsc_control failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return pcsc_error_to_sw (err);
}
full_len = len;
if (buflen)
n = *buflen < len ? *buflen : len;
else
n = 0;
if ((i=readn (slotp->pcsc.rsp_fd, buffer, n, &len)) || len != n)
{
log_error ("error receiving PC/SC CONTROL response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
if (buflen)
*buflen = n;
full_len -= len;
if (full_len)
{
log_error ("pcsc_send_apdu: provided buffer too short - truncated\n");
err = PCSC_E_INVALID_VALUE;
}
/* We need to read any rest of the response, to keep the
protocol running. */
while (full_len)
{
unsigned char dummybuf[128];
n = full_len < DIM (dummybuf) ? full_len : DIM (dummybuf);
if ((i=readn (slotp->pcsc.rsp_fd, dummybuf, n, &len)) || len != n)
{
log_error ("error receiving PC/SC CONTROL response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
full_len -= n;
}
if (!err)
return 0;
command_failed:
close (slotp->pcsc.req_fd);
close (slotp->pcsc.rsp_fd);
slotp->pcsc.req_fd = -1;
slotp->pcsc.rsp_fd = -1;
if (slotp->pcsc.pid != -1)
kill (slotp->pcsc.pid, SIGTERM);
slotp->pcsc.pid = (pid_t)(-1);
slotp->used = 0;
return pcsc_error_to_sw (err);
}
#endif /*NEED_PCSC_WRAPPER*/
/* Do some control with the value of IOCTL_CODE to the card inserted
to SLOT. Input buffer is specified by CNTLBUF of length LEN.
Output buffer is specified by BUFFER of length *BUFLEN, and the
actual output size will be stored at BUFLEN. Returns: A status word.
This routine is used for PIN pad input support. */
static int
control_pcsc (int slot, pcsc_dword_t ioctl_code,
const unsigned char *cntlbuf, size_t len,
unsigned char *buffer, pcsc_dword_t *buflen)
{
#ifdef NEED_PCSC_WRAPPER
return control_pcsc_wrapped (slot, ioctl_code, cntlbuf, len, buffer, buflen);
#else
return control_pcsc_direct (slot, ioctl_code, cntlbuf, len, buffer, buflen);
#endif
}
#ifndef NEED_PCSC_WRAPPER
static int
close_pcsc_reader_direct (int slot)
{
pcsc_release_context (reader_table[slot].pcsc.context);
- xfree (reader_table[slot].rdrname);
- reader_table[slot].rdrname = NULL;
return 0;
}
#endif /*!NEED_PCSC_WRAPPER*/
#ifdef NEED_PCSC_WRAPPER
static int
close_pcsc_reader_wrapped (int slot)
{
long err;
reader_table_t slotp;
size_t len;
int i;
unsigned char msgbuf[9];
slotp = reader_table + slot;
if (slotp->pcsc.req_fd == -1
|| slotp->pcsc.rsp_fd == -1
|| slotp->pcsc.pid == (pid_t)(-1) )
{
log_error ("close_pcsc_reader: pcsc-wrapper not running\n");
return 0;
}
msgbuf[0] = 0x02; /* CLOSE command. */
len = 0;
msgbuf[1] = (len >> 24);
msgbuf[2] = (len >> 16);
msgbuf[3] = (len >> 8);
msgbuf[4] = (len );
if ( writen (slotp->pcsc.req_fd, msgbuf, 5) )
{
log_error ("error sending PC/SC CLOSE request: %s\n",
strerror (errno));
goto command_failed;
}
/* Read the response. */
if ((i=readn (slotp->pcsc.rsp_fd, msgbuf, 9, &len)) || len != 9)
{
log_error ("error receiving PC/SC CLOSE response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
len = buf32_to_size_t (msgbuf+1);
if (msgbuf[0] != 0x81 || len < 4)
{
log_error ("invalid response header from PC/SC received\n");
goto command_failed;
}
len -= 4; /* Already read the error code. */
err = PCSC_ERR_MASK (buf32_to_ulong (msgbuf+5));
if (err)
log_error ("pcsc_close failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
/* We will close the wrapper in any case - errors are merely
informational. */
command_failed:
close (slotp->pcsc.req_fd);
close (slotp->pcsc.rsp_fd);
slotp->pcsc.req_fd = -1;
slotp->pcsc.rsp_fd = -1;
if (slotp->pcsc.pid != -1)
kill (slotp->pcsc.pid, SIGTERM);
slotp->pcsc.pid = (pid_t)(-1);
slotp->used = 0;
return 0;
}
#endif /*NEED_PCSC_WRAPPER*/
static int
close_pcsc_reader (int slot)
{
#ifdef NEED_PCSC_WRAPPER
return close_pcsc_reader_wrapped (slot);
#else
return close_pcsc_reader_direct (slot);
#endif
}
/* Connect a PC/SC card. */
#ifndef NEED_PCSC_WRAPPER
static int
connect_pcsc_card (int slot)
{
long err;
assert (slot >= 0 && slot < MAX_READER);
if (reader_table[slot].pcsc.card)
return SW_HOST_ALREADY_CONNECTED;
reader_table[slot].atrlen = 0;
reader_table[slot].is_t0 = 0;
err = pcsc_connect (reader_table[slot].pcsc.context,
reader_table[slot].rdrname,
PCSC_SHARE_EXCLUSIVE,
PCSC_PROTOCOL_T0|PCSC_PROTOCOL_T1,
&reader_table[slot].pcsc.card,
&reader_table[slot].pcsc.protocol);
if (err)
{
reader_table[slot].pcsc.card = 0;
if (err != PCSC_E_NO_SMARTCARD)
log_error ("pcsc_connect failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
}
else
{
char reader[250];
pcsc_dword_t readerlen, atrlen;
pcsc_dword_t card_state, card_protocol;
pcsc_vendor_specific_init (slot);
atrlen = DIM (reader_table[0].atr);
readerlen = sizeof reader -1 ;
err = pcsc_status (reader_table[slot].pcsc.card,
reader, &readerlen,
&card_state, &card_protocol,
reader_table[slot].atr, &atrlen);
if (err)
log_error ("pcsc_status failed: %s (0x%lx) %lu\n",
pcsc_error_string (err), err, (long unsigned int)readerlen);
else
{
if (atrlen > DIM (reader_table[0].atr))
log_bug ("ATR returned by pcsc_status is too large\n");
reader_table[slot].atrlen = atrlen;
reader_table[slot].is_t0 = !!(card_protocol & PCSC_PROTOCOL_T0);
}
}
dump_reader_status (slot);
return pcsc_error_to_sw (err);
}
#endif /*!NEED_PCSC_WRAPPER*/
/* Disconnect a PC/SC card. Note that this succeeds even if the card
is not connected. */
#ifndef NEED_PCSC_WRAPPER
static int
disconnect_pcsc_card (int slot)
{
long err;
assert (slot >= 0 && slot < MAX_READER);
if (!reader_table[slot].pcsc.card)
return 0;
err = pcsc_disconnect (reader_table[slot].pcsc.card, PCSC_LEAVE_CARD);
if (err)
{
log_error ("pcsc_disconnect failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
return SW_HOST_CARD_IO_ERROR;
}
reader_table[slot].pcsc.card = 0;
return 0;
}
#endif /*!NEED_PCSC_WRAPPER*/
#ifndef NEED_PCSC_WRAPPER
static int
reset_pcsc_reader_direct (int slot)
{
int sw;
sw = disconnect_pcsc_card (slot);
if (!sw)
sw = connect_pcsc_card (slot);
return sw;
}
#endif /*NEED_PCSC_WRAPPER*/
#ifdef NEED_PCSC_WRAPPER
static int
reset_pcsc_reader_wrapped (int slot)
{
long err;
reader_table_t slotp;
size_t len;
int i, n;
unsigned char msgbuf[9];
unsigned int dummy_status;
int sw = SW_HOST_CARD_IO_ERROR;
slotp = reader_table + slot;
if (slotp->pcsc.req_fd == -1
|| slotp->pcsc.rsp_fd == -1
|| slotp->pcsc.pid == (pid_t)(-1) )
{
log_error ("pcsc_get_status: pcsc-wrapper not running\n");
return sw;
}
msgbuf[0] = 0x05; /* RESET command. */
len = 0;
msgbuf[1] = (len >> 24);
msgbuf[2] = (len >> 16);
msgbuf[3] = (len >> 8);
msgbuf[4] = (len );
if ( writen (slotp->pcsc.req_fd, msgbuf, 5) )
{
log_error ("error sending PC/SC RESET request: %s\n",
strerror (errno));
goto command_failed;
}
/* Read the response. */
if ((i=readn (slotp->pcsc.rsp_fd, msgbuf, 9, &len)) || len != 9)
{
log_error ("error receiving PC/SC RESET response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
len = buf32_to_size_t (msgbuf+1);
if (msgbuf[0] != 0x81 || len < 4)
{
log_error ("invalid response header from PC/SC received\n");
goto command_failed;
}
len -= 4; /* Already read the error code. */
if (len > DIM (slotp->atr))
{
log_error ("PC/SC returned a too large ATR (len=%lx)\n",
(unsigned long)len);
sw = SW_HOST_GENERAL_ERROR;
goto command_failed;
}
err = PCSC_ERR_MASK (buf32_to_ulong (msgbuf+5));
if (err)
{
log_error ("PC/SC RESET failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
/* If the error code is no smart card, we should not considere
this a major error and close the wrapper. */
sw = pcsc_error_to_sw (err);
if (err == PCSC_E_NO_SMARTCARD)
return sw;
goto command_failed;
}
/* The open function may return a zero for the ATR length to
indicate that no card is present. */
n = len;
if (n)
{
if ((i=readn (slotp->pcsc.rsp_fd, slotp->atr, n, &len)) || len != n)
{
log_error ("error receiving PC/SC RESET response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
}
slotp->atrlen = len;
/* Read the status so that IS_T0 will be set. */
pcsc_get_status (slot, &dummy_status);
return 0;
command_failed:
close (slotp->pcsc.req_fd);
close (slotp->pcsc.rsp_fd);
slotp->pcsc.req_fd = -1;
slotp->pcsc.rsp_fd = -1;
if (slotp->pcsc.pid != -1)
kill (slotp->pcsc.pid, SIGTERM);
slotp->pcsc.pid = (pid_t)(-1);
slotp->used = 0;
return sw;
}
#endif /* !NEED_PCSC_WRAPPER */
/* Send an PC/SC reset command and return a status word on error or 0
on success. */
static int
reset_pcsc_reader (int slot)
{
#ifdef NEED_PCSC_WRAPPER
return reset_pcsc_reader_wrapped (slot);
#else
return reset_pcsc_reader_direct (slot);
#endif
}
/* Examine reader specific parameters and initialize. This is mostly
for pinpad input. Called at opening the connection to the reader. */
static int
pcsc_vendor_specific_init (int slot)
{
unsigned char buf[256];
pcsc_dword_t len;
int sw;
int vendor = 0;
int product = 0;
pcsc_dword_t get_tlv_ioctl = (pcsc_dword_t)-1;
unsigned char *p;
len = sizeof (buf);
sw = control_pcsc (slot, CM_IOCTL_GET_FEATURE_REQUEST, NULL, 0, buf, &len);
if (sw)
{
log_error ("pcsc_vendor_specific_init: GET_FEATURE_REQUEST failed: %d\n",
sw);
return SW_NOT_SUPPORTED;
}
else
{
p = buf;
while (p < buf + len)
{
unsigned char code = *p++;
int l = *p++;
unsigned int v = 0;
if (l == 1)
v = p[0];
else if (l == 2)
v = buf16_to_uint (p);
else if (l == 4)
v = buf32_to_uint (p);
if (code == FEATURE_VERIFY_PIN_DIRECT)
reader_table[slot].pcsc.verify_ioctl = v;
else if (code == FEATURE_MODIFY_PIN_DIRECT)
reader_table[slot].pcsc.modify_ioctl = v;
else if (code == FEATURE_GET_TLV_PROPERTIES)
get_tlv_ioctl = v;
if (DBG_CARD_IO)
log_debug ("feature: code=%02X, len=%d, v=%02X\n", code, l, v);
p += l;
}
}
if (get_tlv_ioctl == (pcsc_dword_t)-1)
{
/*
* For system which doesn't support GET_TLV_PROPERTIES,
* we put some heuristics here.
*/
if (reader_table[slot].rdrname)
{
if (strstr (reader_table[slot].rdrname, "SPRx32"))
{
reader_table[slot].is_spr532 = 1;
reader_table[slot].pinpad_varlen_supported = 1;
}
else if (strstr (reader_table[slot].rdrname, "ST-2xxx"))
{
reader_table[slot].pcsc.pinmax = 15;
reader_table[slot].pinpad_varlen_supported = 1;
}
else if (strstr (reader_table[slot].rdrname, "cyberJack")
|| strstr (reader_table[slot].rdrname, "DIGIPASS")
|| strstr (reader_table[slot].rdrname, "Gnuk")
|| strstr (reader_table[slot].rdrname, "KAAN"))
reader_table[slot].pinpad_varlen_supported = 1;
}
return 0;
}
len = sizeof (buf);
sw = control_pcsc (slot, get_tlv_ioctl, NULL, 0, buf, &len);
if (sw)
{
log_error ("pcsc_vendor_specific_init: GET_TLV_IOCTL failed: %d\n", sw);
return SW_NOT_SUPPORTED;
}
p = buf;
while (p < buf + len)
{
unsigned char tag = *p++;
int l = *p++;
unsigned int v = 0;
/* Umm... here is little endian, while the encoding above is big. */
if (l == 1)
v = p[0];
else if (l == 2)
v = (((unsigned int)p[1] << 8) | p[0]);
else if (l == 4)
v = (((unsigned int)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
if (tag == PCSCv2_PART10_PROPERTY_bMinPINSize)
reader_table[slot].pcsc.pinmin = v;
else if (tag == PCSCv2_PART10_PROPERTY_bMaxPINSize)
reader_table[slot].pcsc.pinmax = v;
else if (tag == PCSCv2_PART10_PROPERTY_wIdVendor)
vendor = v;
else if (tag == PCSCv2_PART10_PROPERTY_wIdProduct)
product = v;
if (DBG_CARD_IO)
log_debug ("TLV properties: tag=%02X, len=%d, v=%08X\n", tag, l, v);
p += l;
}
if (vendor == VENDOR_VEGA && product == VEGA_ALPHA)
{
/*
* Please read the comment of ccid_vendor_specific_init in
* ccid-driver.c.
*/
const unsigned char cmd[] = { '\xb5', '\x01', '\x00', '\x03', '\x00' };
sw = control_pcsc (slot, CM_IOCTL_VENDOR_IFD_EXCHANGE,
cmd, sizeof (cmd), NULL, 0);
if (sw)
return SW_NOT_SUPPORTED;
}
else if (vendor == VENDOR_SCM && product == SCM_SPR532) /* SCM SPR532 */
{
reader_table[slot].is_spr532 = 1;
reader_table[slot].pinpad_varlen_supported = 1;
}
else if (vendor == 0x046a)
{
/* Cherry ST-2xxx (product == 0x003e) supports TPDU level
* exchange. Other products which only support short APDU level
* exchange only work with shorter keys like RSA 1024.
*/
reader_table[slot].pcsc.pinmax = 15;
reader_table[slot].pinpad_varlen_supported = 1;
}
else if (vendor == 0x0c4b /* Tested with Reiner cyberJack GO */
|| vendor == 0x1a44 /* Tested with Vasco DIGIPASS 920 */
|| vendor == 0x234b /* Tested with FSIJ Gnuk Token */
|| vendor == 0x0d46 /* Tested with KAAN Advanced??? */)
reader_table[slot].pinpad_varlen_supported = 1;
return 0;
}
/* Open the PC/SC reader without using the wrapper. Returns -1 on
error or a slot number for the reader. */
#ifndef NEED_PCSC_WRAPPER
static int
open_pcsc_reader_direct (const char *portstr)
{
long err;
int slot;
char *list = NULL;
char *rdrname = NULL;
pcsc_dword_t nreader;
char *p;
slot = new_reader_slot ();
if (slot == -1)
return -1;
/* Fixme: Allocating a context for each slot is not required. One
global context should be sufficient. */
err = pcsc_establish_context (PCSC_SCOPE_SYSTEM, NULL, NULL,
&reader_table[slot].pcsc.context);
if (err)
{
log_error ("pcsc_establish_context failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
reader_table[slot].used = 0;
unlock_slot (slot);
return -1;
}
err = pcsc_list_readers (reader_table[slot].pcsc.context,
NULL, NULL, &nreader);
if (!err)
{
list = xtrymalloc (nreader+1); /* Better add 1 for safety reasons. */
if (!list)
{
log_error ("error allocating memory for reader list\n");
pcsc_release_context (reader_table[slot].pcsc.context);
reader_table[slot].used = 0;
unlock_slot (slot);
return -1 /*SW_HOST_OUT_OF_CORE*/;
}
err = pcsc_list_readers (reader_table[slot].pcsc.context,
NULL, list, &nreader);
}
if (err)
{
log_error ("pcsc_list_readers failed: %s (0x%lx)\n",
pcsc_error_string (err), err);
pcsc_release_context (reader_table[slot].pcsc.context);
reader_table[slot].used = 0;
xfree (list);
unlock_slot (slot);
return -1;
}
p = list;
while (nreader)
{
if (!*p && !p[1])
break;
log_info ("detected reader '%s'\n", p);
if (nreader < (strlen (p)+1))
{
log_error ("invalid response from pcsc_list_readers\n");
break;
}
if (!rdrname && portstr && !strncmp (p, portstr, strlen (portstr)))
rdrname = p;
nreader -= strlen (p)+1;
p += strlen (p) + 1;
}
if (!rdrname)
rdrname = list;
reader_table[slot].rdrname = xtrystrdup (rdrname);
if (!reader_table[slot].rdrname)
{
log_error ("error allocating memory for reader name\n");
pcsc_release_context (reader_table[slot].pcsc.context);
reader_table[slot].used = 0;
unlock_slot (slot);
return -1;
}
xfree (list);
list = NULL;
reader_table[slot].pcsc.card = 0;
reader_table[slot].atrlen = 0;
reader_table[slot].connect_card = connect_pcsc_card;
reader_table[slot].disconnect_card = disconnect_pcsc_card;
reader_table[slot].close_reader = close_pcsc_reader;
reader_table[slot].reset_reader = reset_pcsc_reader;
reader_table[slot].get_status_reader = pcsc_get_status;
reader_table[slot].send_apdu_reader = pcsc_send_apdu;
reader_table[slot].dump_status_reader = dump_pcsc_reader_status;
dump_reader_status (slot);
unlock_slot (slot);
return slot;
}
#endif /*!NEED_PCSC_WRAPPER */
/* Open the PC/SC reader using the pcsc_wrapper program. This is
needed to cope with different thread models and other peculiarities
of libpcsclite. */
#ifdef NEED_PCSC_WRAPPER
static int
open_pcsc_reader_wrapped (const char *portstr)
{
int slot;
reader_table_t slotp;
int fd, rp[2], wp[2];
int n, i;
pid_t pid;
size_t len;
unsigned char msgbuf[9];
int err;
unsigned int dummy_status;
/* Note that we use the constant and not the function because this
code won't be be used under Windows. */
const char *wrapperpgm = GNUPG_LIBEXECDIR "/gnupg-pcsc-wrapper";
if (access (wrapperpgm, X_OK))
{
log_error ("can't run PC/SC access module '%s': %s\n",
wrapperpgm, strerror (errno));
return -1;
}
slot = new_reader_slot ();
if (slot == -1)
return -1;
slotp = reader_table + slot;
/* Fire up the PC/SCc wrapper. We don't use any fork/exec code from
the common directy but implement it directly so that this file
may still be source copied. */
if (pipe (rp) == -1)
{
log_error ("error creating a pipe: %s\n", strerror (errno));
slotp->used = 0;
unlock_slot (slot);
return -1;
}
if (pipe (wp) == -1)
{
log_error ("error creating a pipe: %s\n", strerror (errno));
close (rp[0]);
close (rp[1]);
slotp->used = 0;
unlock_slot (slot);
return -1;
}
pid = fork ();
if (pid == -1)
{
log_error ("error forking process: %s\n", strerror (errno));
close (rp[0]);
close (rp[1]);
close (wp[0]);
close (wp[1]);
slotp->used = 0;
unlock_slot (slot);
return -1;
}
slotp->pcsc.pid = pid;
if (!pid)
{ /*
=== Child ===
*/
/* Double fork. */
pid = fork ();
if (pid == -1)
_exit (31);
if (pid)
_exit (0); /* Immediate exit this parent, so that the child
gets cleaned up by the init process. */
/* Connect our pipes. */
if (wp[0] != 0 && dup2 (wp[0], 0) == -1)
log_fatal ("dup2 stdin failed: %s\n", strerror (errno));
if (rp[1] != 1 && dup2 (rp[1], 1) == -1)
log_fatal ("dup2 stdout failed: %s\n", strerror (errno));
/* Send stderr to the bit bucket. */
fd = open ("/dev/null", O_WRONLY);
if (fd == -1)
log_fatal ("can't open '/dev/null': %s", strerror (errno));
if (fd != 2 && dup2 (fd, 2) == -1)
log_fatal ("dup2 stderr failed: %s\n", strerror (errno));
/* Close all other files. */
close_all_fds (3, NULL);
execl (wrapperpgm,
"pcsc-wrapper",
"--",
"1", /* API version */
opt.pcsc_driver, /* Name of the PC/SC library. */
NULL);
_exit (31);
}
/*
=== Parent ===
*/
close (wp[0]);
close (rp[1]);
slotp->pcsc.req_fd = wp[1];
slotp->pcsc.rsp_fd = rp[0];
/* Wait for the intermediate child to terminate. */
#ifdef USE_NPTH
#define WAIT npth_waitpid
#else
#define WAIT waitpid
#endif
while ( (i=WAIT (pid, NULL, 0)) == -1 && errno == EINTR)
;
#undef WAIT
/* Now send the open request. */
msgbuf[0] = 0x01; /* OPEN command. */
len = portstr? strlen (portstr):0;
msgbuf[1] = (len >> 24);
msgbuf[2] = (len >> 16);
msgbuf[3] = (len >> 8);
msgbuf[4] = (len );
if ( writen (slotp->pcsc.req_fd, msgbuf, 5)
|| (portstr && writen (slotp->pcsc.req_fd, portstr, len)))
{
log_error ("error sending PC/SC OPEN request: %s\n",
strerror (errno));
goto command_failed;
}
/* Read the response. */
if ((i=readn (slotp->pcsc.rsp_fd, msgbuf, 9, &len)) || len != 9)
{
log_error ("error receiving PC/SC OPEN response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
len = buf32_to_size_t (msgbuf+1);
if (msgbuf[0] != 0x81 || len < 4)
{
log_error ("invalid response header from PC/SC received\n");
goto command_failed;
}
len -= 4; /* Already read the error code. */
if (len > DIM (slotp->atr))
{
log_error ("PC/SC returned a too large ATR (len=%lx)\n",
(unsigned long)len);
goto command_failed;
}
err = PCSC_ERR_MASK (buf32_to_ulong (msgbuf+5));
if (err)
{
log_error ("PC/SC OPEN failed: %s\n", pcsc_error_string (err));
goto command_failed;
}
/* The open request may return a zero for the ATR length to
indicate that no card is present. */
n = len;
if (n)
{
if ((i=readn (slotp->pcsc.rsp_fd, slotp->atr, n, &len)) || len != n)
{
log_error ("error receiving PC/SC OPEN response: %s\n",
i? strerror (errno) : "premature EOF");
goto command_failed;
}
}
slotp->atrlen = len;
reader_table[slot].close_reader = close_pcsc_reader;
reader_table[slot].reset_reader = reset_pcsc_reader;
reader_table[slot].get_status_reader = pcsc_get_status;
reader_table[slot].send_apdu_reader = pcsc_send_apdu;
reader_table[slot].dump_status_reader = dump_pcsc_reader_status;
pcsc_vendor_specific_init (slot);
/* Read the status so that IS_T0 will be set. */
pcsc_get_status (slot, &dummy_status);
dump_reader_status (slot);
unlock_slot (slot);
return slot;
command_failed:
close (slotp->pcsc.req_fd);
close (slotp->pcsc.rsp_fd);
slotp->pcsc.req_fd = -1;
slotp->pcsc.rsp_fd = -1;
if (slotp->pcsc.pid != -1)
kill (slotp->pcsc.pid, SIGTERM);
slotp->pcsc.pid = (pid_t)(-1);
slotp->used = 0;
unlock_slot (slot);
/* There is no way to return SW. */
return -1;
}
#endif /*NEED_PCSC_WRAPPER*/
static int
open_pcsc_reader (const char *portstr)
{
#ifdef NEED_PCSC_WRAPPER
return open_pcsc_reader_wrapped (portstr);
#else
return open_pcsc_reader_direct (portstr);
#endif
}
/* Check whether the reader supports the ISO command code COMMAND
on the pinpad. Return 0 on success. */
static int
check_pcsc_pinpad (int slot, int command, pininfo_t *pininfo)
{
int r;
if (reader_table[slot].pcsc.pinmin >= 0)
pininfo->minlen = reader_table[slot].pcsc.pinmin;
if (reader_table[slot].pcsc.pinmax >= 0)
pininfo->maxlen = reader_table[slot].pcsc.pinmax;
if (!pininfo->minlen)
pininfo->minlen = 1;
if (!pininfo->maxlen)
pininfo->maxlen = 15;
if ((command == ISO7816_VERIFY && reader_table[slot].pcsc.verify_ioctl != 0)
|| (command == ISO7816_CHANGE_REFERENCE_DATA
&& reader_table[slot].pcsc.modify_ioctl != 0))
r = 0; /* Success */
else
r = SW_NOT_SUPPORTED;
if (DBG_CARD_IO)
log_debug ("check_pcsc_pinpad: command=%02X, r=%d\n",
(unsigned int)command, r);
if (reader_table[slot].pinpad_varlen_supported)
pininfo->fixedlen = 0;
return r;
}
#define PIN_VERIFY_STRUCTURE_SIZE 24
static int
pcsc_pinpad_verify (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo)
{
int sw;
unsigned char *pin_verify;
int len = PIN_VERIFY_STRUCTURE_SIZE + pininfo->fixedlen;
/*
* The result buffer is only expected to have two-byte result on
* return. However, some implementation uses this buffer for lower
* layer too and it assumes that there is enough space for lower
* layer communication. Such an implementation fails for TPDU
* readers with "insufficient buffer", as it needs header and
* trailer. Six is the number for header + result + trailer (TPDU).
*/
unsigned char result[6];
pcsc_dword_t resultlen = 6;
int no_lc;
if (!reader_table[slot].atrlen
&& (sw = reset_pcsc_reader (slot)))
return sw;
if (pininfo->fixedlen < 0 || pininfo->fixedlen >= 16)
return SW_NOT_SUPPORTED;
pin_verify = xtrymalloc (len);
if (!pin_verify)
return SW_HOST_OUT_OF_CORE;
no_lc = (!pininfo->fixedlen && reader_table[slot].is_spr532);
pin_verify[0] = 0x00; /* bTimeOut */
pin_verify[1] = 0x00; /* bTimeOut2 */
pin_verify[2] = 0x82; /* bmFormatString: Byte, pos=0, left, ASCII. */
pin_verify[3] = pininfo->fixedlen; /* bmPINBlockString */
pin_verify[4] = 0x00; /* bmPINLengthFormat */
pin_verify[5] = pininfo->maxlen; /* wPINMaxExtraDigit */
pin_verify[6] = pininfo->minlen; /* wPINMaxExtraDigit */
pin_verify[7] = 0x02; /* bEntryValidationCondition: Validation key pressed */
if (pininfo->minlen && pininfo->maxlen && pininfo->minlen == pininfo->maxlen)
pin_verify[7] |= 0x01; /* Max size reached. */
pin_verify[8] = 0x01; /* bNumberMessage: One message */
pin_verify[9] = 0x09; /* wLangId: 0x0409: US English */
pin_verify[10] = 0x04; /* wLangId: 0x0409: US English */
pin_verify[11] = 0x00; /* bMsgIndex */
pin_verify[12] = 0x00; /* bTeoPrologue[0] */
pin_verify[13] = 0x00; /* bTeoPrologue[1] */
pin_verify[14] = pininfo->fixedlen + 0x05 - no_lc; /* bTeoPrologue[2] */
pin_verify[15] = pininfo->fixedlen + 0x05 - no_lc; /* ulDataLength */
pin_verify[16] = 0x00; /* ulDataLength */
pin_verify[17] = 0x00; /* ulDataLength */
pin_verify[18] = 0x00; /* ulDataLength */
pin_verify[19] = class; /* abData[0] */
pin_verify[20] = ins; /* abData[1] */
pin_verify[21] = p0; /* abData[2] */
pin_verify[22] = p1; /* abData[3] */
pin_verify[23] = pininfo->fixedlen; /* abData[4] */
if (pininfo->fixedlen)
memset (&pin_verify[24], 0xff, pininfo->fixedlen);
else if (no_lc)
len--;
if (DBG_CARD_IO)
log_debug ("send secure: c=%02X i=%02X p1=%02X p2=%02X len=%d pinmax=%d\n",
class, ins, p0, p1, len, pininfo->maxlen);
sw = control_pcsc (slot, reader_table[slot].pcsc.verify_ioctl,
pin_verify, len, result, &resultlen);
xfree (pin_verify);
if (sw || resultlen < 2)
{
log_error ("control_pcsc failed: %d\n", sw);
return sw? sw: SW_HOST_INCOMPLETE_CARD_RESPONSE;
}
sw = (result[resultlen-2] << 8) | result[resultlen-1];
if (DBG_CARD_IO)
log_debug (" response: sw=%04X datalen=%d\n", sw, (unsigned int)resultlen);
return sw;
}
#define PIN_MODIFY_STRUCTURE_SIZE 29
static int
pcsc_pinpad_modify (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo)
{
int sw;
unsigned char *pin_modify;
int len = PIN_MODIFY_STRUCTURE_SIZE + 2 * pininfo->fixedlen;
unsigned char result[6]; /* See the comment at pinpad_verify. */
pcsc_dword_t resultlen = 6;
int no_lc;
if (!reader_table[slot].atrlen
&& (sw = reset_pcsc_reader (slot)))
return sw;
if (pininfo->fixedlen < 0 || pininfo->fixedlen >= 16)
return SW_NOT_SUPPORTED;
pin_modify = xtrymalloc (len);
if (!pin_modify)
return SW_HOST_OUT_OF_CORE;
no_lc = (!pininfo->fixedlen && reader_table[slot].is_spr532);
pin_modify[0] = 0x00; /* bTimeOut */
pin_modify[1] = 0x00; /* bTimeOut2 */
pin_modify[2] = 0x82; /* bmFormatString: Byte, pos=0, left, ASCII. */
pin_modify[3] = pininfo->fixedlen; /* bmPINBlockString */
pin_modify[4] = 0x00; /* bmPINLengthFormat */
pin_modify[5] = 0x00; /* bInsertionOffsetOld */
pin_modify[6] = pininfo->fixedlen; /* bInsertionOffsetNew */
pin_modify[7] = pininfo->maxlen; /* wPINMaxExtraDigit */
pin_modify[8] = pininfo->minlen; /* wPINMaxExtraDigit */
pin_modify[9] = (p0 == 0 ? 0x03 : 0x01);
/* bConfirmPIN
* 0x00: new PIN once
* 0x01: new PIN twice (confirmation)
* 0x02: old PIN and new PIN once
* 0x03: old PIN and new PIN twice (confirmation)
*/
pin_modify[10] = 0x02; /* bEntryValidationCondition: Validation key pressed */
if (pininfo->minlen && pininfo->maxlen && pininfo->minlen == pininfo->maxlen)
pin_modify[10] |= 0x01; /* Max size reached. */
pin_modify[11] = 0x03; /* bNumberMessage: Three messages */
pin_modify[12] = 0x09; /* wLangId: 0x0409: US English */
pin_modify[13] = 0x04; /* wLangId: 0x0409: US English */
pin_modify[14] = 0x00; /* bMsgIndex1 */
pin_modify[15] = 0x01; /* bMsgIndex2 */
pin_modify[16] = 0x02; /* bMsgIndex3 */
pin_modify[17] = 0x00; /* bTeoPrologue[0] */
pin_modify[18] = 0x00; /* bTeoPrologue[1] */
pin_modify[19] = 2 * pininfo->fixedlen + 0x05 - no_lc; /* bTeoPrologue[2] */
pin_modify[20] = 2 * pininfo->fixedlen + 0x05 - no_lc; /* ulDataLength */
pin_modify[21] = 0x00; /* ulDataLength */
pin_modify[22] = 0x00; /* ulDataLength */
pin_modify[23] = 0x00; /* ulDataLength */
pin_modify[24] = class; /* abData[0] */
pin_modify[25] = ins; /* abData[1] */
pin_modify[26] = p0; /* abData[2] */
pin_modify[27] = p1; /* abData[3] */
pin_modify[28] = 2 * pininfo->fixedlen; /* abData[4] */
if (pininfo->fixedlen)
memset (&pin_modify[29], 0xff, 2 * pininfo->fixedlen);
else if (no_lc)
len--;
if (DBG_CARD_IO)
log_debug ("send secure: c=%02X i=%02X p1=%02X p2=%02X len=%d pinmax=%d\n",
class, ins, p0, p1, len, (int)pininfo->maxlen);
sw = control_pcsc (slot, reader_table[slot].pcsc.modify_ioctl,
pin_modify, len, result, &resultlen);
xfree (pin_modify);
if (sw || resultlen < 2)
{
log_error ("control_pcsc failed: %d\n", sw);
return sw? sw : SW_HOST_INCOMPLETE_CARD_RESPONSE;
}
sw = (result[resultlen-2] << 8) | result[resultlen-1];
if (DBG_CARD_IO)
log_debug (" response: sw=%04X datalen=%d\n", sw, (unsigned int)resultlen);
return sw;
}
#ifdef HAVE_LIBUSB
/*
Internal CCID driver interface.
*/
static void
dump_ccid_reader_status (int slot)
{
log_info ("reader slot %d: using ccid driver\n", slot);
}
static int
close_ccid_reader (int slot)
{
ccid_close_reader (reader_table[slot].ccid.handle);
- reader_table[slot].rdrname = NULL;
return 0;
}
static int
reset_ccid_reader (int slot)
{
int err;
reader_table_t slotp = reader_table + slot;
unsigned char atr[33];
size_t atrlen;
err = ccid_get_atr (slotp->ccid.handle, atr, sizeof atr, &atrlen);
if (err)
return err;
/* If the reset was successful, update the ATR. */
assert (sizeof slotp->atr >= sizeof atr);
slotp->atrlen = atrlen;
memcpy (slotp->atr, atr, atrlen);
dump_reader_status (slot);
return 0;
}
static int
set_progress_cb_ccid_reader (int slot, gcry_handler_progress_t cb, void *cb_arg)
{
reader_table_t slotp = reader_table + slot;
return ccid_set_progress_cb (slotp->ccid.handle, cb, cb_arg);
}
static int
get_status_ccid (int slot, unsigned int *status)
{
int rc;
int bits;
rc = ccid_slot_status (reader_table[slot].ccid.handle, &bits);
if (rc)
return rc;
if (bits == 0)
*status = (APDU_CARD_USABLE|APDU_CARD_PRESENT|APDU_CARD_ACTIVE);
else if (bits == 1)
*status = APDU_CARD_PRESENT;
else
*status = 0;
return 0;
}
/* Actually send the APDU of length APDULEN to SLOT and return a
maximum of *BUFLEN data in BUFFER, the actual returned size will be
set to BUFLEN. Returns: Internal CCID driver error code. */
static int
send_apdu_ccid (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen,
pininfo_t *pininfo)
{
long err;
size_t maxbuflen;
/* If we don't have an ATR, we need to reset the reader first. */
if (!reader_table[slot].atrlen
&& (err = reset_ccid_reader (slot)))
return err;
if (DBG_CARD_IO)
log_printhex (" raw apdu:", apdu, apdulen);
maxbuflen = *buflen;
if (pininfo)
err = ccid_transceive_secure (reader_table[slot].ccid.handle,
apdu, apdulen, pininfo,
buffer, maxbuflen, buflen);
else
err = ccid_transceive (reader_table[slot].ccid.handle,
apdu, apdulen,
buffer, maxbuflen, buflen);
if (err)
log_error ("ccid_transceive failed: (0x%lx)\n",
err);
return err;
}
/* Check whether the CCID reader supports the ISO command code COMMAND
on the pinpad. Return 0 on success. For a description of the pin
parameters, see ccid-driver.c */
static int
check_ccid_pinpad (int slot, int command, pininfo_t *pininfo)
{
unsigned char apdu[] = { 0, 0, 0, 0x81 };
apdu[1] = command;
return ccid_transceive_secure (reader_table[slot].ccid.handle, apdu,
sizeof apdu, pininfo, NULL, 0, NULL);
}
static int
ccid_pinpad_operation (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo)
{
unsigned char apdu[4];
int err, sw;
unsigned char result[2];
size_t resultlen = 2;
apdu[0] = class;
apdu[1] = ins;
apdu[2] = p0;
apdu[3] = p1;
err = ccid_transceive_secure (reader_table[slot].ccid.handle,
apdu, sizeof apdu, pininfo,
result, 2, &resultlen);
if (err)
return err;
if (resultlen < 2)
return SW_HOST_INCOMPLETE_CARD_RESPONSE;
sw = (result[resultlen-2] << 8) | result[resultlen-1];
return sw;
}
/* Open the reader and try to read an ATR. */
static int
-open_ccid_reader (const char *portstr)
+open_ccid_reader (struct dev_list *dl)
{
int err;
int slot;
reader_table_t slotp;
slot = new_reader_slot ();
if (slot == -1)
return -1;
slotp = reader_table + slot;
- err = ccid_open_reader (&slotp->ccid.handle, portstr,
- (const char **)&slotp->rdrname);
+ err = ccid_open_reader (dl->portstr, dl->idx, dl->ccid_table,
+ &slotp->ccid.handle, &slotp->rdrname);
if (err)
{
slotp->used = 0;
unlock_slot (slot);
return -1;
}
err = ccid_get_atr (slotp->ccid.handle,
slotp->atr, sizeof slotp->atr, &slotp->atrlen);
if (err)
{
slotp->atrlen = 0;
err = 0;
}
reader_table[slot].close_reader = close_ccid_reader;
reader_table[slot].reset_reader = reset_ccid_reader;
reader_table[slot].get_status_reader = get_status_ccid;
reader_table[slot].send_apdu_reader = send_apdu_ccid;
reader_table[slot].check_pinpad = check_ccid_pinpad;
reader_table[slot].dump_status_reader = dump_ccid_reader_status;
reader_table[slot].set_progress_cb = set_progress_cb_ccid_reader;
reader_table[slot].pinpad_verify = ccid_pinpad_operation;
reader_table[slot].pinpad_modify = ccid_pinpad_operation;
/* Our CCID reader code does not support T=0 at all, thus reset the
flag. */
reader_table[slot].is_t0 = 0;
dump_reader_status (slot);
unlock_slot (slot);
return slot;
}
-
-
-
#endif /* HAVE_LIBUSB */
-
-
#ifdef USE_G10CODE_RAPDU
/*
The Remote APDU Interface.
This uses the Remote APDU protocol to contact a reader.
The port number is actually an index into the list of ports as
returned via the protocol.
*/
static int
rapdu_status_to_sw (int status)
{
int rc;
switch (status)
{
case RAPDU_STATUS_SUCCESS: rc = 0; break;
case RAPDU_STATUS_INVCMD:
case RAPDU_STATUS_INVPROT:
case RAPDU_STATUS_INVSEQ:
case RAPDU_STATUS_INVCOOKIE:
case RAPDU_STATUS_INVREADER: rc = SW_HOST_INV_VALUE; break;
case RAPDU_STATUS_TIMEOUT: rc = SW_HOST_CARD_IO_ERROR; break;
case RAPDU_STATUS_CARDIO: rc = SW_HOST_CARD_IO_ERROR; break;
case RAPDU_STATUS_NOCARD: rc = SW_HOST_NO_CARD; break;
case RAPDU_STATUS_CARDCHG: rc = SW_HOST_NO_CARD; break;
case RAPDU_STATUS_BUSY: rc = SW_HOST_BUSY; break;
case RAPDU_STATUS_NEEDRESET: rc = SW_HOST_CARD_INACTIVE; break;
default: rc = SW_HOST_GENERAL_ERROR; break;
}
return rc;
}
static int
close_rapdu_reader (int slot)
{
rapdu_release (reader_table[slot].rapdu.handle);
return 0;
}
static int
reset_rapdu_reader (int slot)
{
int err;
reader_table_t slotp;
rapdu_msg_t msg = NULL;
slotp = reader_table + slot;
err = rapdu_send_cmd (slotp->rapdu.handle, RAPDU_CMD_RESET);
if (err)
{
log_error ("sending rapdu command RESET failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
rapdu_msg_release (msg);
return rapdu_status_to_sw (err);
}
err = rapdu_read_msg (slotp->rapdu.handle, &msg);
if (err)
{
log_error ("receiving rapdu message failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
rapdu_msg_release (msg);
return rapdu_status_to_sw (err);
}
if (msg->cmd != RAPDU_STATUS_SUCCESS || !msg->datalen)
{
int sw = rapdu_status_to_sw (msg->cmd);
log_error ("rapdu command RESET failed: %s\n",
rapdu_strerror (msg->cmd));
rapdu_msg_release (msg);
return sw;
}
if (msg->datalen > DIM (slotp->atr))
{
log_error ("ATR returned by the RAPDU layer is too large\n");
rapdu_msg_release (msg);
return SW_HOST_INV_VALUE;
}
slotp->atrlen = msg->datalen;
memcpy (slotp->atr, msg->data, msg->datalen);
rapdu_msg_release (msg);
return 0;
}
static int
my_rapdu_get_status (int slot, unsigned int *status)
{
int err;
reader_table_t slotp;
rapdu_msg_t msg = NULL;
int oldslot;
slotp = reader_table + slot;
oldslot = rapdu_set_reader (slotp->rapdu.handle, slot);
err = rapdu_send_cmd (slotp->rapdu.handle, RAPDU_CMD_GET_STATUS);
rapdu_set_reader (slotp->rapdu.handle, oldslot);
if (err)
{
log_error ("sending rapdu command GET_STATUS failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
return rapdu_status_to_sw (err);
}
err = rapdu_read_msg (slotp->rapdu.handle, &msg);
if (err)
{
log_error ("receiving rapdu message failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
rapdu_msg_release (msg);
return rapdu_status_to_sw (err);
}
if (msg->cmd != RAPDU_STATUS_SUCCESS || !msg->datalen)
{
int sw = rapdu_status_to_sw (msg->cmd);
log_error ("rapdu command GET_STATUS failed: %s\n",
rapdu_strerror (msg->cmd));
rapdu_msg_release (msg);
return sw;
}
*status = msg->data[0];
rapdu_msg_release (msg);
return 0;
}
/* Actually send the APDU of length APDULEN to SLOT and return a
maximum of *BUFLEN data in BUFFER, the actual returned size will be
set to BUFLEN. Returns: APDU error code. */
static int
my_rapdu_send_apdu (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen,
pininfo_t *pininfo)
{
int err;
reader_table_t slotp;
rapdu_msg_t msg = NULL;
size_t maxlen = *buflen;
slotp = reader_table + slot;
*buflen = 0;
if (DBG_CARD_IO)
log_printhex (" APDU_data:", apdu, apdulen);
if (apdulen < 4)
{
log_error ("rapdu_send_apdu: APDU is too short\n");
return SW_HOST_INV_VALUE;
}
err = rapdu_send_apdu (slotp->rapdu.handle, apdu, apdulen);
if (err)
{
log_error ("sending rapdu command APDU failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
rapdu_msg_release (msg);
return rapdu_status_to_sw (err);
}
err = rapdu_read_msg (slotp->rapdu.handle, &msg);
if (err)
{
log_error ("receiving rapdu message failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
rapdu_msg_release (msg);
return rapdu_status_to_sw (err);
}
if (msg->cmd != RAPDU_STATUS_SUCCESS || !msg->datalen)
{
int sw = rapdu_status_to_sw (msg->cmd);
log_error ("rapdu command APDU failed: %s\n",
rapdu_strerror (msg->cmd));
rapdu_msg_release (msg);
return sw;
}
if (msg->datalen > maxlen)
{
log_error ("rapdu response apdu too large\n");
rapdu_msg_release (msg);
return SW_HOST_INV_VALUE;
}
*buflen = msg->datalen;
memcpy (buffer, msg->data, msg->datalen);
rapdu_msg_release (msg);
return 0;
}
static int
open_rapdu_reader (int portno,
const unsigned char *cookie, size_t length,
int (*readfnc) (void *opaque,
void *buffer, size_t size),
void *readfnc_value,
int (*writefnc) (void *opaque,
const void *buffer, size_t size),
void *writefnc_value,
void (*closefnc) (void *opaque),
void *closefnc_value)
{
int err;
int slot;
reader_table_t slotp;
rapdu_msg_t msg = NULL;
slot = new_reader_slot ();
if (slot == -1)
return -1;
slotp = reader_table + slot;
slotp->rapdu.handle = rapdu_new ();
if (!slotp->rapdu.handle)
{
slotp->used = 0;
unlock_slot (slot);
return -1;
}
rapdu_set_reader (slotp->rapdu.handle, portno);
rapdu_set_iofunc (slotp->rapdu.handle,
readfnc, readfnc_value,
writefnc, writefnc_value,
closefnc, closefnc_value);
rapdu_set_cookie (slotp->rapdu.handle, cookie, length);
/* First try to get the current ATR, but if the card is inactive
issue a reset instead. */
err = rapdu_send_cmd (slotp->rapdu.handle, RAPDU_CMD_GET_ATR);
if (err == RAPDU_STATUS_NEEDRESET)
err = rapdu_send_cmd (slotp->rapdu.handle, RAPDU_CMD_RESET);
if (err)
{
log_info ("sending rapdu command GET_ATR/RESET failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
goto failure;
}
err = rapdu_read_msg (slotp->rapdu.handle, &msg);
if (err)
{
log_info ("receiving rapdu message failed: %s\n",
err < 0 ? strerror (errno): rapdu_strerror (err));
goto failure;
}
if (msg->cmd != RAPDU_STATUS_SUCCESS || !msg->datalen)
{
log_info ("rapdu command GET ATR failed: %s\n",
rapdu_strerror (msg->cmd));
goto failure;
}
if (msg->datalen > DIM (slotp->atr))
{
log_error ("ATR returned by the RAPDU layer is too large\n");
goto failure;
}
slotp->atrlen = msg->datalen;
memcpy (slotp->atr, msg->data, msg->datalen);
reader_table[slot].close_reader = close_rapdu_reader;
reader_table[slot].reset_reader = reset_rapdu_reader;
reader_table[slot].get_status_reader = my_rapdu_get_status;
reader_table[slot].send_apdu_reader = my_rapdu_send_apdu;
reader_table[slot].check_pinpad = NULL;
reader_table[slot].dump_status_reader = NULL;
reader_table[slot].pinpad_verify = NULL;
reader_table[slot].pinpad_modify = NULL;
dump_reader_status (slot);
rapdu_msg_release (msg);
unlock_slot (slot);
return slot;
failure:
rapdu_msg_release (msg);
rapdu_release (slotp->rapdu.handle);
slotp->used = 0;
unlock_slot (slot);
return -1;
}
#endif /*USE_G10CODE_RAPDU*/
/*
Driver Access
*/
+gpg_error_t
+apdu_dev_list_start (const char *portstr, struct dev_list **l_p)
+{
+ gpg_error_t err;
+ struct dev_list *dl = xtrymalloc (sizeof (struct dev_list));
+ *l_p = NULL;
+ if (!dl)
+ return gpg_error_from_syserror ();
-/* Open the reader and return an internal slot number or -1 on
- error. If PORTSTR is NULL we default to a suitable port (for ctAPI:
- the first USB reader. For PC/SC the first listed reader). */
-int
-apdu_open_reader (const char *portstr)
-{
- static int pcsc_api_loaded, ct_api_loaded;
- int slot;
+ dl->portstr = portstr;
+ dl->idx = 0;
- if (DBG_READER)
- log_debug ("enter: apdu_open_reader: portstr=%s\n", portstr);
+ npth_mutex_lock (&reader_table_lock);
#ifdef HAVE_LIBUSB
- if (!opt.disable_ccid)
+ if (opt.disable_ccid)
{
- static int once_available;
- int i;
- const char *s;
-
- slot = open_ccid_reader (portstr);
- if (slot != -1)
- {
- once_available = 1;
- if (DBG_READER)
- log_debug ("leave: apdu_open_reader => slot=%d [ccid]\n", slot);
- return slot; /* got one */
- }
+ dl->ccid_table = NULL;
+ dl->idx_max = 1;
+ }
+ else
+ {
+ err = ccid_dev_scan (&dl->idx_max, &dl->ccid_table);
+ if (err)
+ return err;
- /* If we ever loaded successfully loaded a CCID reader we never
- want to fallback to another driver. This solves a problem
- where ccid was used, the card unplugged and then scdaemon
- tries to find a new reader and will eventually try PC/SC over
- and over again. To reset this flag "gpgconf --kill scdaemon"
- can be used. */
- if (once_available)
+ if (dl->idx_max == 0)
{
- if (DBG_READER)
- log_debug ("leave: apdu_open_reader => slot=-1 (once_avail)\n");
- return -1;
- }
-
- /* If a CCID reader specification has been given, the user does
- not want a fallback to other drivers. */
- if (portstr)
- for (s=portstr, i=0; *s; s++)
- if (*s == ':' && (++i == 3))
+ /* If a CCID reader specification has been given, the user does
+ not want a fallback to other drivers. */
+ if (portstr && strlen (portstr) > 5 && portstr[4] == ':')
{
if (DBG_READER)
log_debug ("leave: apdu_open_reader => slot=-1 (no ccid)\n");
- return -1;
+
+ xfree (dl);
+ npth_mutex_unlock (&reader_table_lock);
+ return gpg_error (GPG_ERR_ENODEV);
}
+ else
+ dl->idx_max = 1;
+ }
}
-
+#else
+ dl->ccid_table = NULL;
+ dl->idx_max = 1;
#endif /* HAVE_LIBUSB */
+ *l_p = dl;
+ return 0;
+}
+
+void
+apdu_dev_list_finish (struct dev_list *dl)
+{
+ ccid_dev_scan_finish (dl->ccid_table, dl->idx_max);
+ xfree (dl);
+ npth_mutex_unlock (&reader_table_lock);
+}
+
+
+/* Open the reader and return an internal slot number or -1 on
+ error. If PORTSTR is NULL we default to a suitable port (for ctAPI:
+ the first USB reader. For PC/SC the first listed reader). */
+static int
+apdu_open_one_reader (const char *portstr)
+{
+ static int pcsc_api_loaded, ct_api_loaded;
+ int slot;
+
+ if (DBG_READER)
+ log_debug ("enter: apdu_open_reader: portstr=%s\n", portstr);
+
if (opt.ctapi_driver && *opt.ctapi_driver)
{
int port = portstr? atoi (portstr) : 32768;
if (!ct_api_loaded)
{
void *handle;
handle = dlopen (opt.ctapi_driver, RTLD_LAZY);
if (!handle)
{
log_error ("apdu_open_reader: failed to open driver: %s\n",
dlerror ());
return -1;
}
CT_init = dlsym (handle, "CT_init");
CT_data = dlsym (handle, "CT_data");
CT_close = dlsym (handle, "CT_close");
if (!CT_init || !CT_data || !CT_close)
{
log_error ("apdu_open_reader: invalid CT-API driver\n");
dlclose (handle);
return -1;
}
ct_api_loaded = 1;
}
return open_ct_reader (port);
}
-
/* No ctAPI configured, so lets try the PC/SC API */
if (!pcsc_api_loaded)
{
#ifndef NEED_PCSC_WRAPPER
void *handle;
handle = dlopen (opt.pcsc_driver, RTLD_LAZY);
if (!handle)
{
log_error ("apdu_open_reader: failed to open driver '%s': %s\n",
opt.pcsc_driver, dlerror ());
return -1;
}
pcsc_establish_context = dlsym (handle, "SCardEstablishContext");
pcsc_release_context = dlsym (handle, "SCardReleaseContext");
pcsc_list_readers = dlsym (handle, "SCardListReaders");
#if defined(_WIN32) || defined(__CYGWIN__)
if (!pcsc_list_readers)
pcsc_list_readers = dlsym (handle, "SCardListReadersA");
#endif
pcsc_get_status_change = dlsym (handle, "SCardGetStatusChange");
#if defined(_WIN32) || defined(__CYGWIN__)
if (!pcsc_get_status_change)
pcsc_get_status_change = dlsym (handle, "SCardGetStatusChangeA");
#endif
pcsc_connect = dlsym (handle, "SCardConnect");
#if defined(_WIN32) || defined(__CYGWIN__)
if (!pcsc_connect)
pcsc_connect = dlsym (handle, "SCardConnectA");
#endif
pcsc_reconnect = dlsym (handle, "SCardReconnect");
#if defined(_WIN32) || defined(__CYGWIN__)
if (!pcsc_reconnect)
pcsc_reconnect = dlsym (handle, "SCardReconnectA");
#endif
pcsc_disconnect = dlsym (handle, "SCardDisconnect");
pcsc_status = dlsym (handle, "SCardStatus");
#if defined(_WIN32) || defined(__CYGWIN__)
if (!pcsc_status)
pcsc_status = dlsym (handle, "SCardStatusA");
#endif
pcsc_begin_transaction = dlsym (handle, "SCardBeginTransaction");
pcsc_end_transaction = dlsym (handle, "SCardEndTransaction");
pcsc_transmit = dlsym (handle, "SCardTransmit");
pcsc_set_timeout = dlsym (handle, "SCardSetTimeout");
pcsc_control = dlsym (handle, "SCardControl");
if (!pcsc_establish_context
|| !pcsc_release_context
|| !pcsc_list_readers
|| !pcsc_get_status_change
|| !pcsc_connect
|| !pcsc_reconnect
|| !pcsc_disconnect
|| !pcsc_status
|| !pcsc_begin_transaction
|| !pcsc_end_transaction
|| !pcsc_transmit
|| !pcsc_control
/* || !pcsc_set_timeout */)
{
/* Note that set_timeout is currently not used and also not
available under Windows. */
log_error ("apdu_open_reader: invalid PC/SC driver "
"(%d%d%d%d%d%d%d%d%d%d%d%d%d)\n",
!!pcsc_establish_context,
!!pcsc_release_context,
!!pcsc_list_readers,
!!pcsc_get_status_change,
!!pcsc_connect,
!!pcsc_reconnect,
!!pcsc_disconnect,
!!pcsc_status,
!!pcsc_begin_transaction,
!!pcsc_end_transaction,
!!pcsc_transmit,
!!pcsc_set_timeout,
!!pcsc_control );
dlclose (handle);
return -1;
}
#endif /*!NEED_PCSC_WRAPPER*/
pcsc_api_loaded = 1;
}
slot = open_pcsc_reader (portstr);
if (DBG_READER)
log_debug ("leave: apdu_open_reader => slot=%d [pc/sc]\n", slot);
return slot;
}
+int
+apdu_open_reader (struct dev_list *dl)
+{
+ int slot;
+
+ if (dl->ccid_table)
+ { /* CCID readers. */
+ int readerno;
+
+ /* See whether we want to use the reader ID string or a reader
+ number. A readerno of -1 indicates that the reader ID string is
+ to be used. */
+ if (dl->portstr && strchr (dl->portstr, ':'))
+ readerno = -1; /* We want to use the readerid. */
+ else if (dl->portstr)
+ {
+ readerno = atoi (dl->portstr);
+ if (readerno < 0)
+ {
+ return -1;
+ }
+ }
+ else
+ readerno = 0; /* Default. */
+
+ if (readerno > 0)
+ { /* Use single, the specific reader. */
+ if (readerno >= dl->idx_max)
+ return -1;
+
+ dl->idx = readerno;
+ dl->portstr = NULL;
+ slot = open_ccid_reader (dl);
+ dl->idx = dl->idx_max;
+ if (slot >= 0)
+ return slot;
+ else
+ return -1;
+ }
+
+ while (dl->idx < dl->idx_max)
+ {
+ unsigned int bai = ccid_get_BAI (dl->idx, dl->ccid_table);
+
+ if (DBG_READER)
+ log_debug ("apdu_open_reader: BAI=%x\n", bai);
+
+ /* Check identity by BAI against already opened HANDLEs. */
+ for (slot = 0; slot < MAX_READER; slot++)
+ if (reader_table[slot].used
+ && ccid_compare_BAI (reader_table[slot].ccid.handle, bai))
+ break;
+
+ if (slot == MAX_READER)
+ { /* Found a new device. */
+ if (DBG_READER)
+ log_debug ("apdu_open_reader: new device=%x\n", bai);
+
+ slot = open_ccid_reader (dl);
+
+ dl->idx++;
+ if (slot >= 0)
+ return slot;
+ else
+ {
+ /* Skip this reader. */
+ log_error ("ccid open error: skip\n");
+ continue;
+ }
+ }
+ else
+ dl->idx++;
+ }
+
+ slot = -1;
+ }
+ else
+ { /* PC/SC readers. */
+ if (dl->idx++ == 0)
+ slot = apdu_open_one_reader (dl->portstr);
+ else
+ slot = -1;
+ }
+
+ if (DBG_READER)
+ log_debug ("leave: apdu_open_reader => slot=%d [ccid]\n", slot);
+
+ return slot;
+}
+
/* Open an remote reader and return an internal slot number or -1 on
error. This function is an alternative to apdu_open_reader and used
with remote readers only. Note that the supplied CLOSEFNC will
only be called once and the slot will not be valid afther this.
If PORTSTR is NULL we default to the first available port.
*/
int
apdu_open_remote_reader (const char *portstr,
const unsigned char *cookie, size_t length,
int (*readfnc) (void *opaque,
void *buffer, size_t size),
void *readfnc_value,
int (*writefnc) (void *opaque,
const void *buffer, size_t size),
void *writefnc_value,
void (*closefnc) (void *opaque),
void *closefnc_value)
{
#ifdef USE_G10CODE_RAPDU
return open_rapdu_reader (portstr? atoi (portstr) : 0,
cookie, length,
readfnc, readfnc_value,
writefnc, writefnc_value,
closefnc, closefnc_value);
#else
(void)portstr;
(void)cookie;
(void)length;
(void)readfnc;
(void)readfnc_value;
(void)writefnc;
(void)writefnc_value;
(void)closefnc;
(void)closefnc_value;
#ifdef _WIN32
errno = ENOENT;
#else
errno = ENOSYS;
#endif
return -1;
#endif
}
int
apdu_close_reader (int slot)
{
int sw;
if (DBG_READER)
log_debug ("enter: apdu_close_reader: slot=%d\n", slot);
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
{
if (DBG_READER)
log_debug ("leave: apdu_close_reader => SW_HOST_NO_DRIVER\n");
return SW_HOST_NO_DRIVER;
}
sw = apdu_disconnect (slot);
if (sw)
{
/*
* When the reader/token was removed it might come here.
* It should go through to call CLOSE_READER even if we got an error.
*/
if (DBG_READER)
log_debug ("apdu_close_reader => 0x%x (apdu_disconnect)\n", sw);
}
if (reader_table[slot].close_reader)
{
sw = reader_table[slot].close_reader (slot);
reader_table[slot].used = 0;
if (DBG_READER)
log_debug ("leave: apdu_close_reader => 0x%x (close_reader)\n", sw);
return sw;
}
+ xfree (reader_table[slot].rdrname);
+ reader_table[slot].rdrname = NULL;
reader_table[slot].used = 0;
if (DBG_READER)
log_debug ("leave: apdu_close_reader => SW_HOST_NOT_SUPPORTED\n");
return SW_HOST_NOT_SUPPORTED;
}
/* Function suitable for a cleanup function to close all reader. It
should not be used if the reader will be opened again. The reason
for implementing this to properly close USB devices so that they
will startup the next time without error. */
void
apdu_prepare_exit (void)
{
static int sentinel;
int slot;
if (!sentinel)
{
sentinel = 1;
npth_mutex_lock (&reader_table_lock);
for (slot = 0; slot < MAX_READER; slot++)
if (reader_table[slot].used)
{
apdu_disconnect (slot);
if (reader_table[slot].close_reader)
reader_table[slot].close_reader (slot);
+ xfree (reader_table[slot].rdrname);
+ reader_table[slot].rdrname = NULL;
reader_table[slot].used = 0;
}
npth_mutex_unlock (&reader_table_lock);
sentinel = 0;
}
}
/* Enumerate all readers and return information on whether this reader
is in use. The caller should start with SLOT set to 0 and
increment it with each call until an error is returned. */
int
apdu_enum_reader (int slot, int *used)
{
if (slot < 0 || slot >= MAX_READER)
return SW_HOST_NO_DRIVER;
*used = reader_table[slot].used;
return 0;
}
/* Connect a card. This is used to power up the card and make sure
that an ATR is available. Depending on the reader backend it may
return an error for an inactive card or if no card is
available. */
int
apdu_connect (int slot)
{
int sw = 0;
unsigned int status = 0;
if (DBG_READER)
log_debug ("enter: apdu_connect: slot=%d\n", slot);
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
{
if (DBG_READER)
log_debug ("leave: apdu_connect => SW_HOST_NO_DRIVER\n");
return SW_HOST_NO_DRIVER;
}
/* Only if the access method provides a connect function we use it.
If not, we expect that the card has been implicitly connected by
apdu_open_reader. */
if (reader_table[slot].connect_card)
{
sw = lock_slot (slot);
if (!sw)
{
sw = reader_table[slot].connect_card (slot);
unlock_slot (slot);
}
}
/* We need to call apdu_get_status_internal, so that the last-status
machinery gets setup properly even if a card is inserted while
scdaemon is fired up and apdu_get_status has not yet been called.
Without that we would force a reset of the card with the next
call to apdu_get_status. */
if (!sw)
sw = apdu_get_status_internal (slot, 1, 1, &status);
if (sw)
;
else if (!(status & APDU_CARD_PRESENT))
sw = SW_HOST_NO_CARD;
else if ((status & APDU_CARD_PRESENT) && !(status & APDU_CARD_ACTIVE))
sw = SW_HOST_CARD_INACTIVE;
if (DBG_READER)
log_debug ("leave: apdu_connect => sw=0x%x\n", sw);
return sw;
}
int
apdu_disconnect (int slot)
{
int sw;
if (DBG_READER)
log_debug ("enter: apdu_disconnect: slot=%d\n", slot);
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
{
if (DBG_READER)
log_debug ("leave: apdu_disconnect => SW_HOST_NO_DRIVER\n");
return SW_HOST_NO_DRIVER;
}
if (reader_table[slot].disconnect_card)
{
sw = lock_slot (slot);
if (!sw)
{
sw = reader_table[slot].disconnect_card (slot);
unlock_slot (slot);
}
}
else
sw = 0;
if (DBG_READER)
log_debug ("leave: apdu_disconnect => sw=0x%x\n", sw);
return sw;
}
/* Set the progress callback of SLOT to CB and its args to CB_ARG. If
CB is NULL the progress callback is removed. */
int
apdu_set_progress_cb (int slot, gcry_handler_progress_t cb, void *cb_arg)
{
int sw;
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (reader_table[slot].set_progress_cb)
{
sw = lock_slot (slot);
if (!sw)
{
sw = reader_table[slot].set_progress_cb (slot, cb, cb_arg);
unlock_slot (slot);
}
}
else
sw = 0;
return sw;
}
/* Do a reset for the card in reader at SLOT. */
int
apdu_reset (int slot)
{
int sw;
if (DBG_READER)
log_debug ("enter: apdu_reset: slot=%d\n", slot);
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
{
if (DBG_READER)
log_debug ("leave: apdu_reset => SW_HOST_NO_DRIVER\n");
return SW_HOST_NO_DRIVER;
}
if ((sw = lock_slot (slot)))
{
if (DBG_READER)
log_debug ("leave: apdu_reset => sw=0x%x (lock_slot)\n", sw);
return sw;
}
if (reader_table[slot].reset_reader)
sw = reader_table[slot].reset_reader (slot);
unlock_slot (slot);
if (DBG_READER)
log_debug ("leave: apdu_reset => sw=0x%x\n", sw);
return sw;
}
/* Return the ATR or NULL if none is available. On success the length
of the ATR is stored at ATRLEN. The caller must free the returned
value. */
unsigned char *
apdu_get_atr (int slot, size_t *atrlen)
{
unsigned char *buf;
if (DBG_READER)
log_debug ("enter: apdu_get_atr: slot=%d\n", slot);
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
{
if (DBG_READER)
log_debug ("leave: apdu_get_atr => NULL (bad slot)\n");
return NULL;
}
if (!reader_table[slot].atrlen)
{
if (DBG_READER)
log_debug ("leave: apdu_get_atr => NULL (no ATR)\n");
return NULL;
}
buf = xtrymalloc (reader_table[slot].atrlen);
if (!buf)
{
if (DBG_READER)
log_debug ("leave: apdu_get_atr => NULL (out of core)\n");
return NULL;
}
memcpy (buf, reader_table[slot].atr, reader_table[slot].atrlen);
*atrlen = reader_table[slot].atrlen;
if (DBG_READER)
log_debug ("leave: apdu_get_atr => atrlen=%zu\n", *atrlen);
return buf;
}
/* Retrieve the status for SLOT. The function does only wait for the
card to become available if HANG is set to true. On success the
bits in STATUS will be set to
APDU_CARD_USABLE (bit 0) = card present and usable
APDU_CARD_PRESENT (bit 1) = card present
APDU_CARD_ACTIVE (bit 2) = card active
(bit 3) = card access locked [not yet implemented]
For must applications, testing bit 0 is sufficient.
*/
static int
apdu_get_status_internal (int slot, int hang, int no_atr_reset,
unsigned int *status)
{
int sw;
unsigned int s;
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if ((sw = hang? lock_slot (slot) : trylock_slot (slot)))
return sw;
if (reader_table[slot].get_status_reader)
sw = reader_table[slot].get_status_reader (slot, &s);
unlock_slot (slot);
if (sw)
{
if (!no_atr_reset)
reader_table[slot].atrlen = 0;
s = 0;
}
if (status)
*status = s;
return sw;
}
/* See above for a description. */
int
apdu_get_status (int slot, int hang, unsigned int *status)
{
int sw;
if (DBG_READER)
log_debug ("enter: apdu_get_status: slot=%d hang=%d\n", slot, hang);
sw = apdu_get_status_internal (slot, hang, 0, status);
if (DBG_READER)
{
if (status)
log_debug ("leave: apdu_get_status => sw=0x%x status=%u\n",
sw, *status);
else
log_debug ("leave: apdu_get_status => sw=0x%x\n", sw);
}
return sw;
}
/* Check whether the reader supports the ISO command code COMMAND on
the pinpad. Return 0 on success. For a description of the pin
parameters, see ccid-driver.c */
int
apdu_check_pinpad (int slot, int command, pininfo_t *pininfo)
{
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (opt.enable_pinpad_varlen)
pininfo->fixedlen = 0;
if (reader_table[slot].check_pinpad)
{
int sw;
if ((sw = lock_slot (slot)))
return sw;
sw = reader_table[slot].check_pinpad (slot, command, pininfo);
unlock_slot (slot);
return sw;
}
else
return SW_HOST_NOT_SUPPORTED;
}
int
apdu_pinpad_verify (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo)
{
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (reader_table[slot].pinpad_verify)
{
int sw;
if ((sw = lock_slot (slot)))
return sw;
sw = reader_table[slot].pinpad_verify (slot, class, ins, p0, p1,
pininfo);
unlock_slot (slot);
return sw;
}
else
return SW_HOST_NOT_SUPPORTED;
}
int
apdu_pinpad_modify (int slot, int class, int ins, int p0, int p1,
pininfo_t *pininfo)
{
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (reader_table[slot].pinpad_modify)
{
int sw;
if ((sw = lock_slot (slot)))
return sw;
sw = reader_table[slot].pinpad_modify (slot, class, ins, p0, p1,
pininfo);
unlock_slot (slot);
return sw;
}
else
return SW_HOST_NOT_SUPPORTED;
}
/* Dispatcher for the actual send_apdu function. Note, that this
function should be called in locked state. */
static int
send_apdu (int slot, unsigned char *apdu, size_t apdulen,
unsigned char *buffer, size_t *buflen, pininfo_t *pininfo)
{
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (reader_table[slot].send_apdu_reader)
return reader_table[slot].send_apdu_reader (slot,
apdu, apdulen,
buffer, buflen,
pininfo);
else
return SW_HOST_NOT_SUPPORTED;
}
/* Core APDU tranceiver function. Parameters are described at
apdu_send_le with the exception of PININFO which indicates pinpad
related operations if not NULL. If EXTENDED_MODE is not 0
command chaining or extended length will be used according to these
values:
n < 0 := Use command chaining with the data part limited to -n
in each chunk. If -1 is used a default value is used.
n == 0 := No extended mode or command chaining.
n == 1 := Use extended length for input and output without a
length limit.
n > 1 := Use extended length with up to N bytes.
*/
static int
send_le (int slot, int class, int ins, int p0, int p1,
int lc, const char *data, int le,
unsigned char **retbuf, size_t *retbuflen,
pininfo_t *pininfo, int extended_mode)
{
#define SHORT_RESULT_BUFFER_SIZE 258
/* We allocate 8 extra bytes as a safety margin towards a driver bug. */
unsigned char short_result_buffer[SHORT_RESULT_BUFFER_SIZE+10];
unsigned char *result_buffer = NULL;
size_t result_buffer_size;
unsigned char *result;
size_t resultlen;
unsigned char short_apdu_buffer[5+256+1];
unsigned char *apdu_buffer = NULL;
size_t apdu_buffer_size;
unsigned char *apdu;
size_t apdulen;
int sw;
long rc; /* We need a long here due to PC/SC. */
int did_exact_length_hack = 0;
int use_chaining = 0;
int use_extended_length = 0;
int lc_chunk;
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (DBG_CARD_IO)
log_debug ("send apdu: c=%02X i=%02X p1=%02X p2=%02X lc=%d le=%d em=%d\n",
class, ins, p0, p1, lc, le, extended_mode);
if (lc != -1 && (lc > 255 || lc < 0))
{
/* Data does not fit into an APDU. What we do now depends on
the EXTENDED_MODE parameter. */
if (!extended_mode)
return SW_WRONG_LENGTH; /* No way to send such an APDU. */
else if (extended_mode > 0)
use_extended_length = 1;
else if (extended_mode < 0)
{
/* Send APDU using chaining mode. */
if (lc > 16384)
return SW_WRONG_LENGTH; /* Sanity check. */
if ((class&0xf0) != 0)
return SW_HOST_INV_VALUE; /* Upper 4 bits need to be 0. */
use_chaining = extended_mode == -1? 255 : -extended_mode;
use_chaining &= 0xff;
}
else
return SW_HOST_INV_VALUE;
}
else if (lc == -1 && extended_mode > 0)
use_extended_length = 1;
if (le != -1 && (le > (extended_mode > 0? 255:256) || le < 0))
{
/* Expected Data does not fit into an APDU. What we do now
depends on the EXTENDED_MODE parameter. Note that a check
for command chaining does not make sense because we are
looking at Le. */
if (!extended_mode)
return SW_WRONG_LENGTH; /* No way to send such an APDU. */
else if (use_extended_length)
; /* We are already using extended length. */
else if (extended_mode > 0)
use_extended_length = 1;
else
return SW_HOST_INV_VALUE;
}
if ((!data && lc != -1) || (data && lc == -1))
return SW_HOST_INV_VALUE;
if (use_extended_length)
{
if (reader_table[slot].is_t0)
return SW_HOST_NOT_SUPPORTED;
/* Space for: cls/ins/p1/p2+Z+2_byte_Lc+Lc+2_byte_Le. */
apdu_buffer_size = 4 + 1 + (lc >= 0? (2+lc):0) + 2;
apdu_buffer = xtrymalloc (apdu_buffer_size + 10);
if (!apdu_buffer)
return SW_HOST_OUT_OF_CORE;
apdu = apdu_buffer;
}
else
{
apdu_buffer_size = sizeof short_apdu_buffer;
apdu = short_apdu_buffer;
}
if (use_extended_length && (le > 256 || le < 0))
{
/* Two more bytes are needed for status bytes. */
result_buffer_size = le < 0? 4096 : (le + 2);
result_buffer = xtrymalloc (result_buffer_size);
if (!result_buffer)
{
xfree (apdu_buffer);
return SW_HOST_OUT_OF_CORE;
}
result = result_buffer;
}
else
{
result_buffer_size = SHORT_RESULT_BUFFER_SIZE;
result = short_result_buffer;
}
#undef SHORT_RESULT_BUFFER_SIZE
if ((sw = lock_slot (slot)))
{
xfree (apdu_buffer);
xfree (result_buffer);
return sw;
}
do
{
if (use_extended_length)
{
use_chaining = 0;
apdulen = 0;
apdu[apdulen++] = class;
apdu[apdulen++] = ins;
apdu[apdulen++] = p0;
apdu[apdulen++] = p1;
if (lc > 0)
{
apdu[apdulen++] = 0; /* Z byte: Extended length marker. */
apdu[apdulen++] = ((lc >> 8) & 0xff);
apdu[apdulen++] = (lc & 0xff);
memcpy (apdu+apdulen, data, lc);
data += lc;
apdulen += lc;
}
if (le != -1)
{
if (lc <= 0)
apdu[apdulen++] = 0; /* Z byte: Extended length marker. */
apdu[apdulen++] = ((le >> 8) & 0xff);
apdu[apdulen++] = (le & 0xff);
}
}
else
{
apdulen = 0;
apdu[apdulen] = class;
if (use_chaining && lc > 255)
{
apdu[apdulen] |= 0x10;
assert (use_chaining < 256);
lc_chunk = use_chaining;
lc -= use_chaining;
}
else
{
use_chaining = 0;
lc_chunk = lc;
}
apdulen++;
apdu[apdulen++] = ins;
apdu[apdulen++] = p0;
apdu[apdulen++] = p1;
if (lc_chunk != -1)
{
apdu[apdulen++] = lc_chunk;
memcpy (apdu+apdulen, data, lc_chunk);
data += lc_chunk;
apdulen += lc_chunk;
/* T=0 does not allow the use of Lc together with Le;
thus disable Le in this case. */
if (reader_table[slot].is_t0)
le = -1;
}
if (le != -1 && !use_chaining)
apdu[apdulen++] = le; /* Truncation is okay (0 means 256). */
}
exact_length_hack:
/* As a safeguard don't pass any garbage to the driver. */
assert (apdulen <= apdu_buffer_size);
memset (apdu+apdulen, 0, apdu_buffer_size - apdulen);
resultlen = result_buffer_size;
rc = send_apdu (slot, apdu, apdulen, result, &resultlen, pininfo);
if (rc || resultlen < 2)
{
log_info ("apdu_send_simple(%d) failed: %s\n",
slot, apdu_strerror (rc));
unlock_slot (slot);
xfree (apdu_buffer);
xfree (result_buffer);
return rc? rc : SW_HOST_INCOMPLETE_CARD_RESPONSE;
}
sw = (result[resultlen-2] << 8) | result[resultlen-1];
if (!use_extended_length
&& !did_exact_length_hack && SW_EXACT_LENGTH_P (sw))
{
apdu[apdulen-1] = (sw & 0x00ff);
did_exact_length_hack = 1;
goto exact_length_hack;
}
}
while (use_chaining && sw == SW_SUCCESS);
if (apdu_buffer)
{
xfree (apdu_buffer);
apdu_buffer = NULL;
apdu_buffer_size = 0;
}
/* Store away the returned data but strip the statusword. */
resultlen -= 2;
if (DBG_CARD_IO)
{
log_debug (" response: sw=%04X datalen=%d\n",
sw, (unsigned int)resultlen);
if ( !retbuf && (sw == SW_SUCCESS || (sw & 0xff00) == SW_MORE_DATA))
log_printhex (" dump: ", result, resultlen);
}
if (sw == SW_SUCCESS || sw == SW_EOF_REACHED)
{
if (retbuf)
{
*retbuf = xtrymalloc (resultlen? resultlen : 1);
if (!*retbuf)
{
unlock_slot (slot);
xfree (result_buffer);
return SW_HOST_OUT_OF_CORE;
}
*retbuflen = resultlen;
memcpy (*retbuf, result, resultlen);
}
}
else if ((sw & 0xff00) == SW_MORE_DATA)
{
unsigned char *p = NULL, *tmp;
size_t bufsize = 4096;
/* It is likely that we need to return much more data, so we
start off with a large buffer. */
if (retbuf)
{
*retbuf = p = xtrymalloc (bufsize);
if (!*retbuf)
{
unlock_slot (slot);
xfree (result_buffer);
return SW_HOST_OUT_OF_CORE;
}
assert (resultlen < bufsize);
memcpy (p, result, resultlen);
p += resultlen;
}
do
{
int len = (sw & 0x00ff);
if (DBG_CARD_IO)
log_debug ("apdu_send_simple(%d): %d more bytes available\n",
slot, len);
apdu_buffer_size = sizeof short_apdu_buffer;
apdu = short_apdu_buffer;
apdulen = 0;
apdu[apdulen++] = class;
apdu[apdulen++] = 0xC0;
apdu[apdulen++] = 0;
apdu[apdulen++] = 0;
apdu[apdulen++] = len;
assert (apdulen <= apdu_buffer_size);
memset (apdu+apdulen, 0, apdu_buffer_size - apdulen);
resultlen = result_buffer_size;
rc = send_apdu (slot, apdu, apdulen, result, &resultlen, NULL);
if (rc || resultlen < 2)
{
log_error ("apdu_send_simple(%d) for get response failed: %s\n",
slot, apdu_strerror (rc));
unlock_slot (slot);
xfree (result_buffer);
return rc? rc : SW_HOST_INCOMPLETE_CARD_RESPONSE;
}
sw = (result[resultlen-2] << 8) | result[resultlen-1];
resultlen -= 2;
if (DBG_CARD_IO)
{
log_debug (" more: sw=%04X datalen=%d\n",
sw, (unsigned int)resultlen);
if (!retbuf && (sw==SW_SUCCESS || (sw&0xff00)==SW_MORE_DATA))
log_printhex (" dump: ", result, resultlen);
}
if ((sw & 0xff00) == SW_MORE_DATA
|| sw == SW_SUCCESS
|| sw == SW_EOF_REACHED )
{
if (retbuf && resultlen)
{
if (p - *retbuf + resultlen > bufsize)
{
bufsize += resultlen > 4096? resultlen: 4096;
tmp = xtryrealloc (*retbuf, bufsize);
if (!tmp)
{
unlock_slot (slot);
xfree (result_buffer);
return SW_HOST_OUT_OF_CORE;
}
p = tmp + (p - *retbuf);
*retbuf = tmp;
}
memcpy (p, result, resultlen);
p += resultlen;
}
}
else
log_info ("apdu_send_simple(%d) "
"got unexpected status %04X from get response\n",
slot, sw);
}
while ((sw & 0xff00) == SW_MORE_DATA);
if (retbuf)
{
*retbuflen = p - *retbuf;
tmp = xtryrealloc (*retbuf, *retbuflen);
if (tmp)
*retbuf = tmp;
}
}
unlock_slot (slot);
xfree (result_buffer);
if (DBG_CARD_IO && retbuf && sw == SW_SUCCESS)
log_printhex (" dump: ", *retbuf, *retbuflen);
return sw;
}
/* Send an APDU to the card in SLOT. The APDU is created from all
given parameters: CLASS, INS, P0, P1, LC, DATA, LE. A value of -1
for LC won't sent this field and the data field; in this case DATA
must also be passed as NULL. If EXTENDED_MODE is not 0 command
chaining or extended length will be used; see send_le for details.
The return value is the status word or -1 for an invalid SLOT or
other non card related error. If RETBUF is not NULL, it will
receive an allocated buffer with the returned data. The length of
that data will be put into *RETBUFLEN. The caller is responsible
for releasing the buffer even in case of errors. */
int
apdu_send_le(int slot, int extended_mode,
int class, int ins, int p0, int p1,
int lc, const char *data, int le,
unsigned char **retbuf, size_t *retbuflen)
{
return send_le (slot, class, ins, p0, p1,
lc, data, le,
retbuf, retbuflen,
NULL, extended_mode);
}
/* Send an APDU to the card in SLOT. The APDU is created from all
given parameters: CLASS, INS, P0, P1, LC, DATA. A value of -1 for
LC won't sent this field and the data field; in this case DATA must
also be passed as NULL. If EXTENDED_MODE is not 0 command chaining
or extended length will be used; see send_le for details. The
return value is the status word or -1 for an invalid SLOT or other
non card related error. If RETBUF is not NULL, it will receive an
allocated buffer with the returned data. The length of that data
will be put into *RETBUFLEN. The caller is responsible for
releasing the buffer even in case of errors. */
int
apdu_send (int slot, int extended_mode,
int class, int ins, int p0, int p1,
int lc, const char *data, unsigned char **retbuf, size_t *retbuflen)
{
return send_le (slot, class, ins, p0, p1, lc, data, 256,
retbuf, retbuflen, NULL, extended_mode);
}
/* Send an APDU to the card in SLOT. The APDU is created from all
given parameters: CLASS, INS, P0, P1, LC, DATA. A value of -1 for
LC won't sent this field and the data field; in this case DATA must
also be passed as NULL. If EXTENDED_MODE is not 0 command chaining
or extended length will be used; see send_le for details. The
return value is the status word or -1 for an invalid SLOT or other
non card related error. No data will be returned. */
int
apdu_send_simple (int slot, int extended_mode,
int class, int ins, int p0, int p1,
int lc, const char *data)
{
return send_le (slot, class, ins, p0, p1, lc, data, -1, NULL, NULL, NULL,
extended_mode);
}
/* This is a more generic version of the apdu sending routine. It
takes an already formatted APDU in APDUDATA or length APDUDATALEN
and returns with an APDU including the status word. With
HANDLE_MORE set to true this function will handle the MORE DATA
status and return all APDUs concatenated with one status word at
the end. If EXTENDED_LENGTH is != 0 extended lengths are allowed
with a max. result data length of EXTENDED_LENGTH bytes. The
function does not return a regular status word but 0 on success.
If the slot is locked, the function returns immediately with an
error. */
int
apdu_send_direct (int slot, size_t extended_length,
const unsigned char *apdudata, size_t apdudatalen,
int handle_more,
unsigned char **retbuf, size_t *retbuflen)
{
#define SHORT_RESULT_BUFFER_SIZE 258
unsigned char short_result_buffer[SHORT_RESULT_BUFFER_SIZE+10];
unsigned char *result_buffer = NULL;
size_t result_buffer_size;
unsigned char *result;
size_t resultlen;
unsigned char short_apdu_buffer[5+256+10];
unsigned char *apdu_buffer = NULL;
unsigned char *apdu;
size_t apdulen;
int sw;
long rc; /* we need a long here due to PC/SC. */
int class;
if (slot < 0 || slot >= MAX_READER || !reader_table[slot].used )
return SW_HOST_NO_DRIVER;
if (apdudatalen > 65535)
return SW_HOST_INV_VALUE;
if (apdudatalen > sizeof short_apdu_buffer - 5)
{
apdu_buffer = xtrymalloc (apdudatalen + 5);
if (!apdu_buffer)
return SW_HOST_OUT_OF_CORE;
apdu = apdu_buffer;
}
else
{
apdu = short_apdu_buffer;
}
apdulen = apdudatalen;
memcpy (apdu, apdudata, apdudatalen);
class = apdulen? *apdu : 0;
if (extended_length >= 256 && extended_length <= 65536)
{
result_buffer_size = extended_length;
result_buffer = xtrymalloc (result_buffer_size + 10);
if (!result_buffer)
{
xfree (apdu_buffer);
return SW_HOST_OUT_OF_CORE;
}
result = result_buffer;
}
else
{
result_buffer_size = SHORT_RESULT_BUFFER_SIZE;
result = short_result_buffer;
}
#undef SHORT_RESULT_BUFFER_SIZE
if ((sw = trylock_slot (slot)))
{
xfree (apdu_buffer);
xfree (result_buffer);
return sw;
}
resultlen = result_buffer_size;
rc = send_apdu (slot, apdu, apdulen, result, &resultlen, NULL);
xfree (apdu_buffer);
apdu_buffer = NULL;
if (rc || resultlen < 2)
{
log_error ("apdu_send_direct(%d) failed: %s\n",
slot, apdu_strerror (rc));
unlock_slot (slot);
xfree (result_buffer);
return rc? rc : SW_HOST_INCOMPLETE_CARD_RESPONSE;
}
sw = (result[resultlen-2] << 8) | result[resultlen-1];
/* Store away the returned data but strip the statusword. */
resultlen -= 2;
if (DBG_CARD_IO)
{
log_debug (" response: sw=%04X datalen=%d\n",
sw, (unsigned int)resultlen);
if ( !retbuf && (sw == SW_SUCCESS || (sw & 0xff00) == SW_MORE_DATA))
log_printhex (" dump: ", result, resultlen);
}
if (handle_more && (sw & 0xff00) == SW_MORE_DATA)
{
unsigned char *p = NULL, *tmp;
size_t bufsize = 4096;
/* It is likely that we need to return much more data, so we
start off with a large buffer. */
if (retbuf)
{
*retbuf = p = xtrymalloc (bufsize + 2);
if (!*retbuf)
{
unlock_slot (slot);
xfree (result_buffer);
return SW_HOST_OUT_OF_CORE;
}
assert (resultlen < bufsize);
memcpy (p, result, resultlen);
p += resultlen;
}
do
{
int len = (sw & 0x00ff);
if (DBG_CARD_IO)
log_debug ("apdu_send_direct(%d): %d more bytes available\n",
slot, len);
apdu = short_apdu_buffer;
apdulen = 0;
apdu[apdulen++] = class;
apdu[apdulen++] = 0xC0;
apdu[apdulen++] = 0;
apdu[apdulen++] = 0;
apdu[apdulen++] = len;
memset (apdu+apdulen, 0, sizeof (short_apdu_buffer) - apdulen);
resultlen = result_buffer_size;
rc = send_apdu (slot, apdu, apdulen, result, &resultlen, NULL);
if (rc || resultlen < 2)
{
log_error ("apdu_send_direct(%d) for get response failed: %s\n",
slot, apdu_strerror (rc));
unlock_slot (slot);
xfree (result_buffer);
return rc ? rc : SW_HOST_INCOMPLETE_CARD_RESPONSE;
}
sw = (result[resultlen-2] << 8) | result[resultlen-1];
resultlen -= 2;
if (DBG_CARD_IO)
{
log_debug (" more: sw=%04X datalen=%d\n",
sw, (unsigned int)resultlen);
if (!retbuf && (sw==SW_SUCCESS || (sw&0xff00)==SW_MORE_DATA))
log_printhex (" dump: ", result, resultlen);
}
if ((sw & 0xff00) == SW_MORE_DATA
|| sw == SW_SUCCESS
|| sw == SW_EOF_REACHED )
{
if (retbuf && resultlen)
{
if (p - *retbuf + resultlen > bufsize)
{
bufsize += resultlen > 4096? resultlen: 4096;
tmp = xtryrealloc (*retbuf, bufsize + 2);
if (!tmp)
{
unlock_slot (slot);
xfree (result_buffer);
return SW_HOST_OUT_OF_CORE;
}
p = tmp + (p - *retbuf);
*retbuf = tmp;
}
memcpy (p, result, resultlen);
p += resultlen;
}
}
else
log_info ("apdu_send_direct(%d) "
"got unexpected status %04X from get response\n",
slot, sw);
}
while ((sw & 0xff00) == SW_MORE_DATA);
if (retbuf)
{
*retbuflen = p - *retbuf;
tmp = xtryrealloc (*retbuf, *retbuflen + 2);
if (tmp)
*retbuf = tmp;
}
}
else
{
if (retbuf)
{
*retbuf = xtrymalloc ((resultlen? resultlen : 1)+2);
if (!*retbuf)
{
unlock_slot (slot);
xfree (result_buffer);
return SW_HOST_OUT_OF_CORE;
}
*retbuflen = resultlen;
memcpy (*retbuf, result, resultlen);
}
}
unlock_slot (slot);
xfree (result_buffer);
/* Append the status word. Note that we reserved the two extra
bytes while allocating the buffer. */
if (retbuf)
{
(*retbuf)[(*retbuflen)++] = (sw >> 8);
(*retbuf)[(*retbuflen)++] = sw;
}
if (DBG_CARD_IO && retbuf)
log_printhex (" dump: ", *retbuf, *retbuflen);
return 0;
}
const char *
apdu_get_reader_name (int slot)
{
return reader_table[slot].rdrname;
}
gpg_error_t
apdu_init (void)
{
#ifdef USE_NPTH
gpg_error_t err;
int i;
if (npth_mutex_init (&reader_table_lock, NULL))
goto leave;
for (i = 0; i < MAX_READER; i++)
if (npth_mutex_init (&reader_table[i].lock, NULL))
goto leave;
/* All done well. */
return 0;
leave:
err = gpg_error_from_syserror ();
log_error ("apdu: error initializing mutex: %s\n", gpg_strerror (err));
return err;
#endif /*USE_NPTH*/
return 0;
}
diff --git a/scd/apdu.h b/scd/apdu.h
index 3021cf7a5..473def518 100644
--- a/scd/apdu.h
+++ b/scd/apdu.h
@@ -1,139 +1,143 @@
/* apdu.h - ISO 7816 APDU functions and low level I/O
* Copyright (C) 2003, 2008 Free Software Foundation, Inc.
*
* 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 <https://www.gnu.org/licenses/>.
*
* $Id$
*/
#ifndef APDU_H
#define APDU_H
/* ISO 7816 values for the statusword are defined here because they
should not be visible to the users of the actual ISO command
API. */
enum {
SW_MORE_DATA = 0x6100, /* Note: that the low byte must be
masked of.*/
SW_EOF_REACHED = 0x6282,
SW_TERM_STATE = 0x6285, /* Selected file is in termination state. */
SW_EEPROM_FAILURE = 0x6581,
SW_WRONG_LENGTH = 0x6700,
SW_SM_NOT_SUP = 0x6882, /* Secure Messaging is not supported. */
SW_CC_NOT_SUP = 0x6884, /* Command Chaining is not supported. */
SW_CHV_WRONG = 0x6982,
SW_CHV_BLOCKED = 0x6983,
SW_REF_DATA_INV = 0x6984, /* Referenced data invalidated. */
SW_USE_CONDITIONS = 0x6985,
SW_BAD_PARAMETER = 0x6a80, /* (in the data field) */
SW_NOT_SUPPORTED = 0x6a81,
SW_FILE_NOT_FOUND = 0x6a82,
SW_RECORD_NOT_FOUND = 0x6a83,
SW_NOT_ENOUGH_MEMORY= 0x6a84, /* Not enough memory space in the file. */
SW_INCONSISTENT_LC = 0x6a85, /* Lc inconsistent with TLV structure. */
SW_INCORRECT_P0_P1 = 0x6a86,
SW_BAD_LC = 0x6a87, /* Lc does not match command or p1/p2. */
SW_REF_NOT_FOUND = 0x6a88,
SW_BAD_P0_P1 = 0x6b00,
SW_EXACT_LENGTH = 0x6c00,
SW_INS_NOT_SUP = 0x6d00,
SW_CLA_NOT_SUP = 0x6e00,
SW_SUCCESS = 0x9000,
/* The following statuswords are no real ones but used to map host
OS errors into status words. A status word is 16 bit so that
those values can't be issued by a card. */
SW_HOST_OUT_OF_CORE = 0x10001, /* No way yet to differentiate
between errnos on a failed malloc. */
SW_HOST_INV_VALUE = 0x10002,
SW_HOST_INCOMPLETE_CARD_RESPONSE = 0x10003,
SW_HOST_NO_DRIVER = 0x10004,
SW_HOST_NOT_SUPPORTED = 0x10005,
SW_HOST_LOCKING_FAILED= 0x10006,
SW_HOST_BUSY = 0x10007,
SW_HOST_NO_CARD = 0x10008,
SW_HOST_CARD_INACTIVE = 0x10009,
SW_HOST_CARD_IO_ERROR = 0x1000a,
SW_HOST_GENERAL_ERROR = 0x1000b,
SW_HOST_NO_READER = 0x1000c,
SW_HOST_ABORTED = 0x1000d,
SW_HOST_NO_PINPAD = 0x1000e,
SW_HOST_ALREADY_CONNECTED = 0x1000f
};
+struct dev_list;
#define SW_EXACT_LENGTH_P(a) (((a)&~0xff) == SW_EXACT_LENGTH)
/* Bit flags for the card status. */
#define APDU_CARD_USABLE (1) /* Card is present and ready for use. */
#define APDU_CARD_PRESENT (2) /* Card is just present. */
#define APDU_CARD_ACTIVE (4) /* Card is active. */
gpg_error_t apdu_init (void);
+gpg_error_t apdu_dev_list_start (const char *portstr, struct dev_list **l_p);
+void apdu_dev_list_finish (struct dev_list *l);
+
/* Note, that apdu_open_reader returns no status word but -1 on error. */
-int apdu_open_reader (const char *portstr);
+int apdu_open_reader (struct dev_list *l);
int apdu_open_remote_reader (const char *portstr,
const unsigned char *cookie, size_t length,
int (*readfnc) (void *opaque,
void *buffer, size_t size),
void *readfnc_value,
int (*writefnc) (void *opaque,
const void *buffer, size_t size),
void *writefnc_value,
void (*closefnc) (void *opaque),
void *closefnc_value);
int apdu_close_reader (int slot);
void apdu_prepare_exit (void);
int apdu_enum_reader (int slot, int *used);
unsigned char *apdu_get_atr (int slot, size_t *atrlen);
const char *apdu_strerror (int rc);
/* These APDU functions return status words. */
int apdu_connect (int slot);
int apdu_disconnect (int slot);
int apdu_set_progress_cb (int slot, gcry_handler_progress_t cb, void *cb_arg);
int apdu_reset (int slot);
int apdu_get_status (int slot, int hang, unsigned int *status);
int apdu_check_pinpad (int slot, int command, pininfo_t *pininfo);
int apdu_pinpad_verify (int slot, int class, int ins, int p0, int p1,
- pininfo_t *pininfo);
+ pininfo_t *pininfo);
int apdu_pinpad_modify (int slot, int class, int ins, int p0, int p1,
- pininfo_t *pininfo);
+ pininfo_t *pininfo);
int apdu_send_simple (int slot, int extended_mode,
int class, int ins, int p0, int p1,
int lc, const char *data);
int apdu_send (int slot, int extended_mode,
int class, int ins, int p0, int p1, int lc, const char *data,
unsigned char **retbuf, size_t *retbuflen);
int apdu_send_le (int slot, int extended_mode,
int class, int ins, int p0, int p1,
int lc, const char *data, int le,
unsigned char **retbuf, size_t *retbuflen);
int apdu_send_direct (int slot, size_t extended_length,
const unsigned char *apdudata, size_t apdudatalen,
int handle_more,
unsigned char **retbuf, size_t *retbuflen);
const char *apdu_get_reader_name (int slot);
#endif /*APDU_H*/
diff --git a/scd/app-common.h b/scd/app-common.h
index 781bf465c..2371818e5 100644
--- a/scd/app-common.h
+++ b/scd/app-common.h
@@ -1,206 +1,209 @@
/* app-common.h - Common declarations for all card applications
* Copyright (C) 2003, 2005, 2008 Free Software Foundation, Inc.
*
* 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 <https://www.gnu.org/licenses/>.
*
* $Id$
*/
#ifndef GNUPG_SCD_APP_COMMON_H
#define GNUPG_SCD_APP_COMMON_H
#include <npth.h>
#include <ksba.h>
#define APP_CHANGE_FLAG_RESET 1
#define APP_CHANGE_FLAG_NULLPIN 2
/* Bit flags set by the decipher function into R_INFO. */
#define APP_DECIPHER_INFO_NOPAD 1 /* Padding has been removed. */
struct app_local_s; /* Defined by all app-*.c. */
struct app_ctx_s {
struct app_ctx_s *next;
npth_mutex_t lock;
/* Number of connections currently using this application context.
If this is not 0 the application has been initialized and the
function pointers may be used. Note that for unsupported
operations the particular function pointer is set to NULL */
unsigned int ref_count;
/* Used reader slot. */
int slot;
unsigned char *serialno; /* Serialnumber in raw form, allocated. */
size_t serialnolen; /* Length in octets of serialnumber. */
const char *apptype;
unsigned int card_version;
unsigned int card_status;
unsigned int require_get_status:1;
unsigned int did_chv1:1;
unsigned int force_chv1:1; /* True if the card does not cache CHV1. */
unsigned int did_chv2:1;
unsigned int did_chv3:1;
struct app_local_s *app_local; /* Local to the application. */
struct {
void (*deinit) (app_t app);
gpg_error_t (*learn_status) (app_t app, ctrl_t ctrl, unsigned int flags);
gpg_error_t (*readcert) (app_t app, const char *certid,
unsigned char **cert, size_t *certlen);
gpg_error_t (*readkey) (app_t app, int advanced, const char *certid,
unsigned char **pk, size_t *pklen);
gpg_error_t (*getattr) (app_t app, ctrl_t ctrl, const char *name);
gpg_error_t (*setattr) (app_t app, const char *name,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *value, size_t valuelen);
gpg_error_t (*sign) (app_t app,
const char *keyidstr, int hashalgo,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen );
gpg_error_t (*auth) (app_t app, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen);
gpg_error_t (*decipher) (app_t app, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen,
unsigned int *r_info);
gpg_error_t (*writecert) (app_t app, ctrl_t ctrl,
const char *certid,
gpg_error_t (*pincb)(void*,const char *,char **),
void *pincb_arg,
const unsigned char *data, size_t datalen);
gpg_error_t (*writekey) (app_t app, ctrl_t ctrl,
const char *keyid, unsigned int flags,
gpg_error_t (*pincb)(void*,const char *,char **),
void *pincb_arg,
const unsigned char *pk, size_t pklen);
gpg_error_t (*genkey) (app_t app, ctrl_t ctrl,
const char *keynostr, unsigned int flags,
time_t createtime,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
gpg_error_t (*change_pin) (app_t app, ctrl_t ctrl,
const char *chvnostr, unsigned int flags,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
gpg_error_t (*check_pin) (app_t app, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
} fnc;
};
/*-- app-help.c --*/
unsigned int app_help_count_bits (const unsigned char *a, size_t len);
gpg_error_t app_help_get_keygrip_string (ksba_cert_t cert, char *hexkeygrip);
size_t app_help_read_length_of_cert (int slot, int fid, size_t *r_certoff);
/*-- app.c --*/
+app_t app_list_start (void);
+void app_list_finish (void);
+
void app_dump_state (void);
void application_notify_card_reset (int slot);
gpg_error_t check_application_conflict (const char *name, app_t app);
gpg_error_t app_reset (app_t app, ctrl_t ctrl, int send_reset);
gpg_error_t select_application (ctrl_t ctrl, const char *name, app_t *r_app,
int scan);
char *get_supported_applications (void);
void release_application (app_t app);
gpg_error_t app_munge_serialno (app_t app);
gpg_error_t app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp);
gpg_error_t app_write_learn_status (app_t app, ctrl_t ctrl,
unsigned int flags);
gpg_error_t app_readcert (app_t app, ctrl_t ctrl, const char *certid,
unsigned char **cert, size_t *certlen);
gpg_error_t app_readkey (app_t app, ctrl_t ctrl, int advanced,
const char *keyid, unsigned char **pk, size_t *pklen);
gpg_error_t app_getattr (app_t app, ctrl_t ctrl, const char *name);
gpg_error_t app_setattr (app_t app, ctrl_t ctrl, const char *name,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *value, size_t valuelen);
gpg_error_t app_sign (app_t app, ctrl_t ctrl, const char *keyidstr, int hashalgo,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen );
gpg_error_t app_auth (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen);
gpg_error_t app_decipher (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen,
unsigned int *r_info);
gpg_error_t app_writecert (app_t app, ctrl_t ctrl,
const char *certidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *keydata, size_t keydatalen);
gpg_error_t app_writekey (app_t app, ctrl_t ctrl,
const char *keyidstr, unsigned int flags,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *keydata, size_t keydatalen);
gpg_error_t app_genkey (app_t app, ctrl_t ctrl,
const char *keynostr, unsigned int flags,
time_t createtime,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
gpg_error_t app_get_challenge (app_t app, ctrl_t ctrl, size_t nbytes,
unsigned char *buffer);
gpg_error_t app_change_pin (app_t app, ctrl_t ctrl,
const char *chvnostr, int reset_mode,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
gpg_error_t app_check_pin (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg);
/*-- app-openpgp.c --*/
gpg_error_t app_select_openpgp (app_t app);
/*-- app-nks.c --*/
gpg_error_t app_select_nks (app_t app);
/*-- app-dinsig.c --*/
gpg_error_t app_select_dinsig (app_t app);
/*-- app-p15.c --*/
gpg_error_t app_select_p15 (app_t app);
/*-- app-geldkarte.c --*/
gpg_error_t app_select_geldkarte (app_t app);
/*-- app-sc-hsm.c --*/
gpg_error_t app_select_sc_hsm (app_t app);
#endif /*GNUPG_SCD_APP_COMMON_H*/
diff --git a/scd/app.c b/scd/app.c
index a49972433..6db9e27ef 100644
--- a/scd/app.c
+++ b/scd/app.c
@@ -1,1073 +1,1086 @@
/* app.c - Application selection.
* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
*
* 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 <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <npth.h>
#include "scdaemon.h"
#include "exechelp.h"
#include "app-common.h"
#include "iso7816.h"
#include "apdu.h"
#include "tlv.h"
static npth_mutex_t app_list_lock;
static app_t app_top;
static void
print_progress_line (void *opaque, const char *what, int pc, int cur, int tot)
{
ctrl_t ctrl = opaque;
char line[100];
if (ctrl)
{
snprintf (line, sizeof line, "%s %c %d %d", what, pc, cur, tot);
send_status_direct (ctrl, "PROGRESS", line);
}
}
/* Lock the reader SLOT. This function shall be used right before
calling any of the actual application functions to serialize access
to the reader. We do this always even if the reader is not
actually used. This allows an actual connection to assume that it
never shares a reader (while performing one command). Returns 0 on
success; only then the unlock_reader function must be called after
returning from the handler. */
static gpg_error_t
lock_app (app_t app, ctrl_t ctrl)
{
if (npth_mutex_lock (&app->lock))
{
gpg_error_t err = gpg_error_from_syserror ();
log_error ("failed to acquire APP lock for %p: %s\n",
app, gpg_strerror (err));
return err;
}
apdu_set_progress_cb (app->slot, print_progress_line, ctrl);
return 0;
}
/* Release a lock on the reader. See lock_reader(). */
static void
unlock_app (app_t app)
{
apdu_set_progress_cb (app->slot, NULL, NULL);
if (npth_mutex_unlock (&app->lock))
{
gpg_error_t err = gpg_error_from_syserror ();
log_error ("failed to release APP lock for %p: %s\n",
app, gpg_strerror (err));
}
}
/* This function may be called to print information pertaining to the
current state of this module to the log. */
void
app_dump_state (void)
{
app_t a;
npth_mutex_lock (&app_list_lock);
for (a = app_top; a; a = a->next)
log_info ("app_dump_state: app=%p type='%s'\n", a, a->apptype);
npth_mutex_unlock (&app_list_lock);
}
/* Check wether the application NAME is allowed. This does not mean
we have support for it though. */
static int
is_app_allowed (const char *name)
{
strlist_t l;
for (l=opt.disabled_applications; l; l = l->next)
if (!strcmp (l->d, name))
return 0; /* no */
return 1; /* yes */
}
static gpg_error_t
check_conflict (app_t app, const char *name)
{
if (!app || !name || (app->apptype && !ascii_strcasecmp (app->apptype, name)))
return 0;
log_info ("application '%s' in use - can't switch\n",
app->apptype? app->apptype : "<null>");
return gpg_error (GPG_ERR_CONFLICT);
}
/* This function is used by the serialno command to check for an
application conflict which may appear if the serialno command is
used to request a specific application and the connection has
already done a select_application. */
gpg_error_t
check_application_conflict (const char *name, app_t app)
{
return check_conflict (app, name);
}
static void
release_application_internal (app_t app)
{
if (!app->ref_count)
log_bug ("trying to release an already released context\n");
--app->ref_count;
}
gpg_error_t
app_reset (app_t app, ctrl_t ctrl, int send_reset)
{
gpg_error_t err;
err = lock_app (app, ctrl);
if (err)
return err;
if (send_reset)
{
int sw = apdu_reset (app->slot);
if (sw)
err = gpg_error (GPG_ERR_CARD_RESET);
/* Release the same application which is used by other sessions. */
send_client_notifications (app, 1);
}
else
{
ctrl->app_ctx = NULL;
release_application_internal (app);
}
unlock_app (app);
return err;
}
static gpg_error_t
app_new_register (int slot, ctrl_t ctrl, const char *name)
{
gpg_error_t err = 0;
app_t app = NULL;
unsigned char *result = NULL;
size_t resultlen;
int want_undefined;
/* Need to allocate a new one. */
app = xtrycalloc (1, sizeof *app);
if (!app)
{
err = gpg_error_from_syserror ();
log_info ("error allocating context: %s\n", gpg_strerror (err));
return err;
}
app->slot = slot;
if (npth_mutex_init (&app->lock, NULL))
{
err = gpg_error_from_syserror ();
log_error ("error initializing mutex: %s\n", gpg_strerror (err));
xfree (app);
return err;
}
err = lock_app (app, ctrl);
if (err)
{
xfree (app);
return err;
}
want_undefined = (name && !strcmp (name, "undefined"));
/* Try to read the GDO file first to get a default serial number.
We skip this if the undefined application has been requested. */
if (!want_undefined)
{
err = iso7816_select_file (slot, 0x3F00, 1, NULL, NULL);
if (!err)
err = iso7816_select_file (slot, 0x2F02, 0, NULL, NULL);
if (!err)
err = iso7816_read_binary (slot, 0, 0, &result, &resultlen);
if (!err)
{
size_t n;
const unsigned char *p;
p = find_tlv_unchecked (result, resultlen, 0x5A, &n);
if (p)
resultlen -= (p-result);
if (p && n > resultlen && n == 0x0d && resultlen+1 == n)
{
/* The object it does not fit into the buffer. This is an
invalid encoding (or the buffer is too short. However, I
have some test cards with such an invalid encoding and
therefore I use this ugly workaround to return something
I can further experiment with. */
log_info ("enabling BMI testcard workaround\n");
n--;
}
if (p && n <= resultlen)
{
/* The GDO file is pretty short, thus we simply reuse it for
storing the serial number. */
memmove (result, p, n);
app->serialno = result;
app->serialnolen = n;
err = app_munge_serialno (app);
if (err)
goto leave;
}
else
xfree (result);
result = NULL;
}
}
/* For certain error codes, there is no need to try more. */
if (gpg_err_code (err) == GPG_ERR_CARD_NOT_PRESENT
|| gpg_err_code (err) == GPG_ERR_ENODEV)
goto leave;
/* Figure out the application to use. */
if (want_undefined)
{
/* We switch to the "undefined" application only if explicitly
requested. */
app->apptype = "UNDEFINED";
err = 0;
}
else
err = gpg_error (GPG_ERR_NOT_FOUND);
if (err && is_app_allowed ("openpgp")
&& (!name || !strcmp (name, "openpgp")))
err = app_select_openpgp (app);
if (err && is_app_allowed ("nks") && (!name || !strcmp (name, "nks")))
err = app_select_nks (app);
if (err && is_app_allowed ("p15") && (!name || !strcmp (name, "p15")))
err = app_select_p15 (app);
if (err && is_app_allowed ("geldkarte")
&& (!name || !strcmp (name, "geldkarte")))
err = app_select_geldkarte (app);
if (err && is_app_allowed ("dinsig") && (!name || !strcmp (name, "dinsig")))
err = app_select_dinsig (app);
if (err && is_app_allowed ("sc-hsm") && (!name || !strcmp (name, "sc-hsm")))
err = app_select_sc_hsm (app);
if (err && name && gpg_err_code (err) != GPG_ERR_OBJ_TERM_STATE)
err = gpg_error (GPG_ERR_NOT_SUPPORTED);
leave:
if (err)
{
if (name)
log_info ("can't select application '%s': %s\n",
name, gpg_strerror (err));
else
log_info ("no supported card application found: %s\n",
gpg_strerror (err));
unlock_app (app);
xfree (app);
return err;
}
app->require_get_status = 1; /* For token, this can be 0. */
npth_mutex_lock (&app_list_lock);
app->next = app_top;
app_top = app;
npth_mutex_unlock (&app_list_lock);
unlock_app (app);
return 0;
}
/* If called with NAME as NULL, select the best fitting application
and return a context; otherwise select the application with NAME
and return a context. Returns an error code and stores NULL at
R_APP if no application was found or no card is present. */
gpg_error_t
select_application (ctrl_t ctrl, const char *name, app_t *r_app, int scan)
{
- gpg_error_t err;
+ gpg_error_t err = 0;
app_t app;
- int slot;
*r_app = NULL;
- if ((scan && !app_top)
- /* FIXME: Here, we can change code to support multiple readers.
- For now, we only open a single reader.
- */
- || !app_top)
+ if (scan || !app_top)
{
- slot = apdu_open_reader (opt.reader_port);
- if (slot >= 0)
+ struct dev_list *l;
+
+ err = apdu_dev_list_start (opt.reader_port, &l);
+ if (err)
+ return err;
+
+ while (1)
{
- int sw = apdu_connect (slot);
+ int slot;
+ int sw;
+
+ slot = apdu_open_reader (l);
+ if (slot < 0)
+ break;
+
+ err = 0;
+ sw = apdu_connect (slot);
if (sw == SW_HOST_CARD_INACTIVE)
{
/* Try again. */
sw = apdu_reset (slot);
}
if (!sw || sw == SW_HOST_ALREADY_CONNECTED)
err = 0;
else
err = gpg_error (GPG_ERR_ENODEV);
+
+ if (!err)
+ err = app_new_register (slot, ctrl, name);
+ else
+ apdu_close_reader (slot);
}
- else
- err = gpg_error (GPG_ERR_ENODEV);
- if (!err)
- err = app_new_register (slot, ctrl, name);
- else
- apdu_close_reader (slot);
+ apdu_dev_list_finish (l);
}
- else
- err = 0;
-
- if (!err)
- app = app_top;
- else
- app = NULL;
+ app = app_top;
if (app)
{
lock_app (app, ctrl);
err = check_conflict (app, name);
if (!err)
{
app->ref_count++;
*r_app = app;
}
unlock_app (app);
}
else
err = gpg_error (GPG_ERR_ENODEV);
return err;
}
char *
get_supported_applications (void)
{
const char *list[] = {
"openpgp",
"nks",
"p15",
"geldkarte",
"dinsig",
"sc-hsm",
/* Note: "undefined" is not listed here because it needs special
treatment by the client. */
NULL
};
int idx;
size_t nbytes;
char *buffer, *p;
for (nbytes=1, idx=0; list[idx]; idx++)
nbytes += strlen (list[idx]) + 1 + 1;
buffer = xtrymalloc (nbytes);
if (!buffer)
return NULL;
for (p=buffer, idx=0; list[idx]; idx++)
if (is_app_allowed (list[idx]))
p = stpcpy (stpcpy (p, list[idx]), ":\n");
*p = 0;
return buffer;
}
/* Deallocate the application. */
static void
deallocate_app (app_t app)
{
app_t a, a_prev = NULL;
for (a = app_top; a; a = a->next)
if (a == app)
{
if (a_prev == NULL)
app_top = a->next;
else
a_prev->next = a->next;
break;
}
else
a_prev = a;
if (app->ref_count)
log_error ("trying to release context used yet (%d)\n", app->ref_count);
if (app->fnc.deinit)
{
app->fnc.deinit (app);
app->fnc.deinit = NULL;
}
xfree (app->serialno);
xfree (app);
}
/* Free the resources associated with the application APP. APP is
allowed to be NULL in which case this is a no-op. Note that we are
using reference counting to track the users of the application and
actually deferring the deallocation to allow for a later reuse by
a new connection. */
void
release_application (app_t app)
{
if (!app)
return;
/* We don't deallocate app here. Instead, we keep it. This is
useful so that a card does not get reset even if only one session
is using the card - this way the PIN cache and other cached data
are preserved. */
lock_app (app, NULL);
release_application_internal (app);
unlock_app (app);
}
/* The serial number may need some cosmetics. Do it here. This
function shall only be called once after a new serial number has
been put into APP->serialno.
Prefixes we use:
FF 00 00 = For serial numbers starting with an FF
FF 01 00 = Some german p15 cards return an empty serial number so the
serial number from the EF(TokenInfo) is used instead.
FF 7F 00 = No serialno.
All other serial number not starting with FF are used as they are.
*/
gpg_error_t
app_munge_serialno (app_t app)
{
if (app->serialnolen && app->serialno[0] == 0xff)
{
/* The serial number starts with our special prefix. This
requires that we put our default prefix "FF0000" in front. */
unsigned char *p = xtrymalloc (app->serialnolen + 3);
if (!p)
return gpg_error_from_syserror ();
memcpy (p, "\xff\0", 3);
memcpy (p+3, app->serialno, app->serialnolen);
app->serialnolen += 3;
xfree (app->serialno);
app->serialno = p;
}
else if (!app->serialnolen)
{
unsigned char *p = xtrymalloc (3);
if (!p)
return gpg_error_from_syserror ();
memcpy (p, "\xff\x7f", 3);
app->serialnolen = 3;
xfree (app->serialno);
app->serialno = p;
}
return 0;
}
/* Retrieve the serial number and the time of the last update of the
card. The serial number is returned as a malloced string (hex
encoded) in SERIAL and the time of update is returned in STAMP. If
no update time is available the returned value is 0. Caller must
free SERIAL unless the function returns an error. If STAMP is not
of interest, NULL may be passed. */
gpg_error_t
app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp)
{
char *buf;
if (!app || !serial)
return gpg_error (GPG_ERR_INV_VALUE);
*serial = NULL;
if (stamp)
*stamp = 0; /* not available */
if (!app->serialnolen)
buf = xtrystrdup ("FF7F00");
else
buf = bin2hex (app->serialno, app->serialnolen, NULL);
if (!buf)
return gpg_error_from_syserror ();
*serial = buf;
return 0;
}
/* Write out the application specifig status lines for the LEARN
command. */
gpg_error_t
app_write_learn_status (app_t app, ctrl_t ctrl, unsigned int flags)
{
gpg_error_t err;
if (!app)
return gpg_error (GPG_ERR_INV_VALUE);
- if (!app->ref_count)
- return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.learn_status)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
/* We do not send APPTYPE if only keypairinfo is requested. */
if (app->apptype && !(flags & 1))
send_status_info (ctrl, "APPTYPE",
app->apptype, strlen (app->apptype), NULL, 0);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.learn_status (app, ctrl, flags);
unlock_app (app);
return err;
}
/* Read the certificate with id CERTID (as returned by learn_status in
the CERTINFO status lines) and return it in the freshly allocated
buffer put into CERT and the length of the certificate put into
CERTLEN. */
gpg_error_t
app_readcert (app_t app, ctrl_t ctrl, const char *certid,
unsigned char **cert, size_t *certlen)
{
gpg_error_t err;
if (!app)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.readcert)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.readcert (app, certid, cert, certlen);
unlock_app (app);
return err;
}
/* Read the key with ID KEYID. On success a canonical encoded
S-expression with the public key will get stored at PK and its
length (for assertions) at PKLEN; the caller must release that
buffer. On error NULL will be stored at PK and PKLEN and an error
code returned.
This function might not be supported by all applications. */
gpg_error_t
app_readkey (app_t app, ctrl_t ctrl, int advanced, const char *keyid,
unsigned char **pk, size_t *pklen)
{
gpg_error_t err;
if (pk)
*pk = NULL;
if (pklen)
*pklen = 0;
if (!app || !keyid || !pk || !pklen)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.readkey)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err= app->fnc.readkey (app, advanced, keyid, pk, pklen);
unlock_app (app);
return err;
}
/* Perform a GETATTR operation. */
gpg_error_t
app_getattr (app_t app, ctrl_t ctrl, const char *name)
{
gpg_error_t err;
if (!app || !name || !*name)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (app->apptype && name && !strcmp (name, "APPTYPE"))
{
send_status_info (ctrl, "APPTYPE",
app->apptype, strlen (app->apptype), NULL, 0);
return 0;
}
if (name && !strcmp (name, "SERIALNO"))
{
char *serial;
time_t stamp;
int rc;
rc = app_get_serial_and_stamp (app, &serial, &stamp);
if (rc)
return rc;
send_status_info (ctrl, "SERIALNO", serial, strlen (serial), NULL, 0);
xfree (serial);
return 0;
}
if (!app->fnc.getattr)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.getattr (app, ctrl, name);
unlock_app (app);
return err;
}
/* Perform a SETATTR operation. */
gpg_error_t
app_setattr (app_t app, ctrl_t ctrl, const char *name,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *value, size_t valuelen)
{
gpg_error_t err;
if (!app || !name || !*name || !value)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.setattr)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.setattr (app, name, pincb, pincb_arg, value, valuelen);
unlock_app (app);
return err;
}
/* Create the signature and return the allocated result in OUTDATA.
If a PIN is required the PINCB will be used to ask for the PIN; it
should return the PIN in an allocated buffer and put it into PIN. */
gpg_error_t
app_sign (app_t app, ctrl_t ctrl, const char *keyidstr, int hashalgo,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen )
{
gpg_error_t err;
if (!app || !indata || !indatalen || !outdata || !outdatalen || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.sign)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.sign (app, keyidstr, hashalgo,
pincb, pincb_arg,
indata, indatalen,
outdata, outdatalen);
unlock_app (app);
if (opt.verbose)
log_info ("operation sign result: %s\n", gpg_strerror (err));
return err;
}
/* Create the signature using the INTERNAL AUTHENTICATE command and
return the allocated result in OUTDATA. If a PIN is required the
PINCB will be used to ask for the PIN; it should return the PIN in
an allocated buffer and put it into PIN. */
gpg_error_t
app_auth (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen )
{
gpg_error_t err;
if (!app || !indata || !indatalen || !outdata || !outdatalen || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.auth)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.auth (app, keyidstr,
pincb, pincb_arg,
indata, indatalen,
outdata, outdatalen);
unlock_app (app);
if (opt.verbose)
log_info ("operation auth result: %s\n", gpg_strerror (err));
return err;
}
/* Decrypt the data in INDATA and return the allocated result in OUTDATA.
If a PIN is required the PINCB will be used to ask for the PIN; it
should return the PIN in an allocated buffer and put it into PIN. */
gpg_error_t
app_decipher (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const void *indata, size_t indatalen,
unsigned char **outdata, size_t *outdatalen,
unsigned int *r_info)
{
gpg_error_t err;
*r_info = 0;
if (!app || !indata || !indatalen || !outdata || !outdatalen || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.decipher)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.decipher (app, keyidstr,
pincb, pincb_arg,
indata, indatalen,
outdata, outdatalen,
r_info);
unlock_app (app);
if (opt.verbose)
log_info ("operation decipher result: %s\n", gpg_strerror (err));
return err;
}
/* Perform the WRITECERT operation. */
gpg_error_t
app_writecert (app_t app, ctrl_t ctrl,
const char *certidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *data, size_t datalen)
{
gpg_error_t err;
if (!app || !certidstr || !*certidstr || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.writecert)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.writecert (app, ctrl, certidstr,
pincb, pincb_arg, data, datalen);
unlock_app (app);
if (opt.verbose)
log_info ("operation writecert result: %s\n", gpg_strerror (err));
return err;
}
/* Perform the WRITEKEY operation. */
gpg_error_t
app_writekey (app_t app, ctrl_t ctrl,
const char *keyidstr, unsigned int flags,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg,
const unsigned char *keydata, size_t keydatalen)
{
gpg_error_t err;
if (!app || !keyidstr || !*keyidstr || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.writekey)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.writekey (app, ctrl, keyidstr, flags,
pincb, pincb_arg, keydata, keydatalen);
unlock_app (app);
if (opt.verbose)
log_info ("operation writekey result: %s\n", gpg_strerror (err));
return err;
}
/* Perform a SETATTR operation. */
gpg_error_t
app_genkey (app_t app, ctrl_t ctrl, const char *keynostr, unsigned int flags,
time_t createtime,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg)
{
gpg_error_t err;
if (!app || !keynostr || !*keynostr || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.genkey)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.genkey (app, ctrl, keynostr, flags,
createtime, pincb, pincb_arg);
unlock_app (app);
if (opt.verbose)
log_info ("operation genkey result: %s\n", gpg_strerror (err));
return err;
}
/* Perform a GET CHALLENGE operation. This function is special as it
directly accesses the card without any application specific
wrapper. */
gpg_error_t
app_get_challenge (app_t app, ctrl_t ctrl, size_t nbytes, unsigned char *buffer)
{
gpg_error_t err;
if (!app || !nbytes || !buffer)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
err = lock_app (app, ctrl);
if (err)
return err;
err = iso7816_get_challenge (app->slot, nbytes, buffer);
unlock_app (app);
return err;
}
/* Perform a CHANGE REFERENCE DATA or RESET RETRY COUNTER operation. */
gpg_error_t
app_change_pin (app_t app, ctrl_t ctrl, const char *chvnostr, int reset_mode,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg)
{
gpg_error_t err;
if (!app || !chvnostr || !*chvnostr || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.change_pin)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.change_pin (app, ctrl, chvnostr, reset_mode,
pincb, pincb_arg);
unlock_app (app);
if (opt.verbose)
log_info ("operation change_pin result: %s\n", gpg_strerror (err));
return err;
}
/* Perform a VERIFY operation without doing anything lese. This may
be used to initialze a the PIN cache for long lasting other
operations. Its use is highly application dependent. */
gpg_error_t
app_check_pin (app_t app, ctrl_t ctrl, const char *keyidstr,
gpg_error_t (*pincb)(void*, const char *, char **),
void *pincb_arg)
{
gpg_error_t err;
if (!app || !keyidstr || !*keyidstr || !pincb)
return gpg_error (GPG_ERR_INV_VALUE);
if (!app->ref_count)
return gpg_error (GPG_ERR_CARD_NOT_INITIALIZED);
if (!app->fnc.check_pin)
return gpg_error (GPG_ERR_UNSUPPORTED_OPERATION);
err = lock_app (app, ctrl);
if (err)
return err;
err = app->fnc.check_pin (app, keyidstr, pincb, pincb_arg);
unlock_app (app);
if (opt.verbose)
log_info ("operation check_pin result: %s\n", gpg_strerror (err));
return err;
}
static void
report_change (int slot, int old_status, int cur_status)
{
char *homestr, *envstr;
char *fname;
char templ[50];
FILE *fp;
snprintf (templ, sizeof templ, "reader_%d.status", slot);
fname = make_filename (gnupg_homedir (), templ, NULL );
fp = fopen (fname, "w");
if (fp)
{
fprintf (fp, "%s\n",
(cur_status & 1)? "USABLE":
(cur_status & 4)? "ACTIVE":
(cur_status & 2)? "PRESENT": "NOCARD");
fclose (fp);
}
xfree (fname);
homestr = make_filename (gnupg_homedir (), NULL);
if (gpgrt_asprintf (&envstr, "GNUPGHOME=%s", homestr) < 0)
log_error ("out of core while building environment\n");
else
{
gpg_error_t err;
const char *args[9], *envs[2];
char numbuf1[30], numbuf2[30], numbuf3[30];
envs[0] = envstr;
envs[1] = NULL;
sprintf (numbuf1, "%d", slot);
sprintf (numbuf2, "0x%04X", old_status);
sprintf (numbuf3, "0x%04X", cur_status);
args[0] = "--reader-port";
args[1] = numbuf1;
args[2] = "--old-code";
args[3] = numbuf2;
args[4] = "--new-code";
args[5] = numbuf3;
args[6] = "--status";
args[7] = ((cur_status & 1)? "USABLE":
(cur_status & 4)? "ACTIVE":
(cur_status & 2)? "PRESENT": "NOCARD");
args[8] = NULL;
fname = make_filename (gnupg_homedir (), "scd-event", NULL);
err = gnupg_spawn_process_detached (fname, args, envs);
if (err && gpg_err_code (err) != GPG_ERR_ENOENT)
log_error ("failed to run event handler '%s': %s\n",
fname, gpg_strerror (err));
xfree (fname);
xfree (envstr);
}
xfree (homestr);
}
void
scd_update_reader_status_file (void)
{
app_t a, app_next;
npth_mutex_lock (&app_list_lock);
for (a = app_top; a; a = app_next)
{
app_next = a->next;
if (a->require_get_status)
{
int sw;
unsigned int status;
sw = apdu_get_status (a->slot, 0, &status);
if (sw == SW_HOST_NO_READER)
{
/* Most likely the _reader_ has been unplugged. */
status = 0;
}
else if (sw)
{
/* Get status failed. Ignore that. */
continue;
}
if (a->card_status != status)
{
report_change (a->slot, a->card_status, status);
send_client_notifications (a, status == 0);
if (status == 0)
{
log_debug ("Removal of a card: %d\n", a->slot);
apdu_close_reader (a->slot);
deallocate_app (a);
}
else
a->card_status = status;
}
}
}
npth_mutex_unlock (&app_list_lock);
}
/* This function must be called once to initialize this module. This
has to be done before a second thread is spawned. We can't do the
static initialization because Pth emulation code might not be able
to do a static init; in particular, it is not possible for W32. */
gpg_error_t
initialize_module_command (void)
{
gpg_error_t err;
if (npth_mutex_init (&app_list_lock, NULL))
{
err = gpg_error_from_syserror ();
log_error ("app: error initializing mutex: %s\n", gpg_strerror (err));
return err;
}
return apdu_init ();
}
+
+app_t
+app_list_start (void)
+{
+ npth_mutex_lock (&app_list_lock);
+ return app_top;
+}
+
+void
+app_list_finish (void)
+{
+ npth_mutex_unlock (&app_list_lock);
+}
diff --git a/scd/ccid-driver.c b/scd/ccid-driver.c
index 6d8112282..5e02628e1 100644
--- a/scd/ccid-driver.c
+++ b/scd/ccid-driver.c
@@ -1,3760 +1,4024 @@
/* ccid-driver.c - USB ChipCardInterfaceDevices driver
* Copyright (C) 2003, 2004, 2005, 2006, 2007
* 2008, 2009, 2013 Free Software Foundation, Inc.
* Written by 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 <https://www.gnu.org/licenses/>.
*
* ALTERNATIVELY, this file may be distributed under the terms of the
* following license, in which case the provisions of this license are
* required INSTEAD OF the GNU General Public License. If you wish to
* allow use of your version of this file only under the terms of the
* GNU General Public License, and not to allow others to use your
* version of this file under the terms of the following license,
* indicate your decision by deleting this paragraph and the license
* below.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* CCID (ChipCardInterfaceDevices) is a specification for accessing
smartcard via a reader connected to the USB.
This is a limited driver allowing to use some CCID drivers directly
without any other specila drivers. This is a fallback driver to be
used when nothing else works or the system should be kept minimal
for security reasons. It makes use of the libusb library to gain
portable access to USB.
This driver has been tested with the SCM SCR335 and SPR532
smartcard readers and requires that a reader implements APDU or
TPDU level exchange and does fully automatic initialization.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#if defined(HAVE_LIBUSB) || defined(TEST)
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include <unistd.h>
#ifdef HAVE_NPTH
# include <npth.h>
#endif /*HAVE_NPTH*/
#include <libusb.h>
#include "scdaemon.h"
#include "iso7816.h"
#define CCID_DRIVER_INCLUDE_USB_IDS 1
#include "ccid-driver.h"
#define DRVNAME "ccid-driver: "
/* Max length of buffer with out CCID message header of 10-byte
Sending: 547 for RSA-4096 key import
APDU size = 540 (24+4+256+256)
commnd + lc + le = 4 + 3 + 0
Sending: write data object of cardholder certificate
APDU size = 2048
commnd + lc + le = 4 + 3 + 0
Receiving: 2048 for cardholder certificate
*/
#define CCID_MAX_BUF (2048+7+10)
/* CCID command timeout. OpenPGPcard v2.1 requires timeout of 13 seconds. */
#define CCID_CMD_TIMEOUT (13*1000)
/* Depending on how this source is used we either define our error
output to go to stderr or to the GnuPG based logging functions. We
use the latter when GNUPG_MAJOR_VERSION or GNUPG_SCD_MAIN_HEADER
are defined. */
#if defined(GNUPG_MAJOR_VERSION) || defined(GNUPG_SCD_MAIN_HEADER)
#if defined(GNUPG_SCD_MAIN_HEADER)
# include GNUPG_SCD_MAIN_HEADER
#elif GNUPG_MAJOR_VERSION == 1 /* GnuPG Version is < 1.9. */
# include "options.h"
# include "util.h"
# include "memory.h"
# include "cardglue.h"
# else /* This is the modularized GnuPG 1.9 or later. */
# include "scdaemon.h"
#endif
# define DEBUGOUT(t) do { if (debug_level) \
log_debug (DRVNAME t); } while (0)
# define DEBUGOUT_1(t,a) do { if (debug_level) \
log_debug (DRVNAME t,(a)); } while (0)
# define DEBUGOUT_2(t,a,b) do { if (debug_level) \
log_debug (DRVNAME t,(a),(b)); } while (0)
# define DEBUGOUT_3(t,a,b,c) do { if (debug_level) \
log_debug (DRVNAME t,(a),(b),(c));} while (0)
# define DEBUGOUT_4(t,a,b,c,d) do { if (debug_level) \
log_debug (DRVNAME t,(a),(b),(c),(d));} while (0)
# define DEBUGOUT_CONT(t) do { if (debug_level) \
log_printf (t); } while (0)
# define DEBUGOUT_CONT_1(t,a) do { if (debug_level) \
log_printf (t,(a)); } while (0)
# define DEBUGOUT_CONT_2(t,a,b) do { if (debug_level) \
log_printf (t,(a),(b)); } while (0)
# define DEBUGOUT_CONT_3(t,a,b,c) do { if (debug_level) \
log_printf (t,(a),(b),(c)); } while (0)
# define DEBUGOUT_LF() do { if (debug_level) \
log_printf ("\n"); } while (0)
#else /* Other usage of this source - don't use gnupg specifics. */
# define DEBUGOUT(t) do { if (debug_level) \
fprintf (stderr, DRVNAME t); } while (0)
# define DEBUGOUT_1(t,a) do { if (debug_level) \
fprintf (stderr, DRVNAME t, (a)); } while (0)
# define DEBUGOUT_2(t,a,b) do { if (debug_level) \
fprintf (stderr, DRVNAME t, (a), (b)); } while (0)
# define DEBUGOUT_3(t,a,b,c) do { if (debug_level) \
fprintf (stderr, DRVNAME t, (a), (b), (c)); } while (0)
# define DEBUGOUT_4(t,a,b,c,d) do { if (debug_level) \
fprintf (stderr, DRVNAME t, (a), (b), (c), (d));} while(0)
# define DEBUGOUT_CONT(t) do { if (debug_level) \
fprintf (stderr, t); } while (0)
# define DEBUGOUT_CONT_1(t,a) do { if (debug_level) \
fprintf (stderr, t, (a)); } while (0)
# define DEBUGOUT_CONT_2(t,a,b) do { if (debug_level) \
fprintf (stderr, t, (a), (b)); } while (0)
# define DEBUGOUT_CONT_3(t,a,b,c) do { if (debug_level) \
fprintf (stderr, t, (a), (b), (c)); } while (0)
# define DEBUGOUT_LF() do { if (debug_level) \
putc ('\n', stderr); } while (0)
#endif /* This source not used by scdaemon. */
#ifndef EAGAIN
#define EAGAIN EWOULDBLOCK
#endif
enum {
RDR_to_PC_NotifySlotChange= 0x50,
RDR_to_PC_HardwareError = 0x51,
PC_to_RDR_SetParameters = 0x61,
PC_to_RDR_IccPowerOn = 0x62,
PC_to_RDR_IccPowerOff = 0x63,
PC_to_RDR_GetSlotStatus = 0x65,
PC_to_RDR_Secure = 0x69,
PC_to_RDR_T0APDU = 0x6a,
PC_to_RDR_Escape = 0x6b,
PC_to_RDR_GetParameters = 0x6c,
PC_to_RDR_ResetParameters = 0x6d,
PC_to_RDR_IccClock = 0x6e,
PC_to_RDR_XfrBlock = 0x6f,
PC_to_RDR_Mechanical = 0x71,
PC_to_RDR_Abort = 0x72,
PC_to_RDR_SetDataRate = 0x73,
RDR_to_PC_DataBlock = 0x80,
RDR_to_PC_SlotStatus = 0x81,
RDR_to_PC_Parameters = 0x82,
RDR_to_PC_Escape = 0x83,
RDR_to_PC_DataRate = 0x84
};
/* Two macro to detect whether a CCID command has failed and to get
the error code. These macros assume that we can access the
mandatory first 10 bytes of a CCID message in BUF. */
#define CCID_COMMAND_FAILED(buf) ((buf)[7] & 0x40)
#define CCID_ERROR_CODE(buf) (((unsigned char *)(buf))[8])
/* A list and a table with special transport descriptions. */
enum {
TRANSPORT_USB = 0, /* Standard USB transport. */
TRANSPORT_CM4040 = 1 /* As used by the Cardman 4040. */
};
static struct
{
char *name; /* Device name. */
int type;
} transports[] = {
{ "/dev/cmx0", TRANSPORT_CM4040 },
{ "/dev/cmx1", TRANSPORT_CM4040 },
{ NULL },
};
/* Store information on the driver's state. A pointer to such a
structure is used as handle for most functions. */
struct ccid_driver_s
{
libusb_device_handle *idev;
- char *rid;
int dev_fd; /* -1 for USB transport or file descriptor of the
transport device. */
+ unsigned int bai;
unsigned short id_vendor;
unsigned short id_product;
- unsigned short bcd_device;
int ifc_no;
int ep_bulk_out;
int ep_bulk_in;
int ep_intr;
int seqno;
unsigned char t1_ns;
unsigned char t1_nr;
unsigned char nonnull_nad;
int max_ifsd;
int max_ccid_msglen;
int ifsc;
unsigned char apdu_level:2; /* Reader supports short APDU level
exchange. With a value of 2 short
and extended level is supported.*/
unsigned int auto_voltage:1;
unsigned int auto_param:1;
unsigned int auto_pps:1;
unsigned int auto_ifsd:1;
unsigned int powered_off:1;
unsigned int has_pinpad:2;
unsigned int enodev_seen:1;
time_t last_progress; /* Last time we sent progress line. */
/* The progress callback and its first arg as supplied to
ccid_set_progress_cb. */
void (*progress_cb)(void *, const char *, int, int, int);
void *progress_cb_arg;
};
static int initialized_usb; /* Tracks whether USB has been initialized. */
static int debug_level; /* Flag to control the debug output.
0 = No debugging
1 = USB I/O info
2 = Level 1 + T=1 protocol tracing
3 = Level 2 + USB/I/O tracing of SlotStatus.
*/
static unsigned int compute_edc (const unsigned char *data, size_t datalen,
int use_crc);
static int bulk_out (ccid_driver_t handle, unsigned char *msg, size_t msglen,
int no_debug);
static int bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
size_t *nread, int expected_type, int seqno, int timeout,
int no_debug);
static int abort_cmd (ccid_driver_t handle, int seqno);
static int send_escape_cmd (ccid_driver_t handle, const unsigned char *data,
size_t datalen, unsigned char *result,
size_t resultmax, size_t *resultlen);
/* Convert a little endian stored 4 byte value into an unsigned
integer. */
static unsigned int
convert_le_u32 (const unsigned char *buf)
{
return buf[0] | (buf[1] << 8) | (buf[2] << 16) | ((unsigned int)buf[3] << 24);
}
/* Convert a little endian stored 2 byte value into an unsigned
integer. */
static unsigned int
convert_le_u16 (const unsigned char *buf)
{
return buf[0] | (buf[1] << 8);
}
static void
set_msg_len (unsigned char *msg, unsigned int length)
{
msg[1] = length;
msg[2] = length >> 8;
msg[3] = length >> 16;
msg[4] = length >> 24;
}
static void
my_sleep (int seconds)
{
#ifdef USE_NPTH
npth_sleep (seconds);
#else
# ifdef HAVE_W32_SYSTEM
Sleep (seconds*1000);
# else
sleep (seconds);
# endif
#endif
}
static void
print_progress (ccid_driver_t handle)
{
time_t ct = time (NULL);
/* We don't want to print progress lines too often. */
if (ct == handle->last_progress)
return;
if (handle->progress_cb)
handle->progress_cb (handle->progress_cb_arg, "card_busy", 'w', 0, 0);
handle->last_progress = ct;
}
/* Pint an error message for a failed CCID command including a textual
error code. MSG shall be the CCID message at a minimum of 10 bytes. */
static void
print_command_failed (const unsigned char *msg)
{
const char *t;
char buffer[100];
int ec;
if (!debug_level)
return;
ec = CCID_ERROR_CODE (msg);
switch (ec)
{
case 0x00: t = "Command not supported"; break;
case 0xE0: t = "Slot busy"; break;
case 0xEF: t = "PIN cancelled"; break;
case 0xF0: t = "PIN timeout"; break;
case 0xF2: t = "Automatic sequence ongoing"; break;
case 0xF3: t = "Deactivated Protocol"; break;
case 0xF4: t = "Procedure byte conflict"; break;
case 0xF5: t = "ICC class not supported"; break;
case 0xF6: t = "ICC protocol not supported"; break;
case 0xF7: t = "Bad checksum in ATR"; break;
case 0xF8: t = "Bad TS in ATR"; break;
case 0xFB: t = "An all inclusive hardware error occurred"; break;
case 0xFC: t = "Overrun error while talking to the ICC"; break;
case 0xFD: t = "Parity error while talking to the ICC"; break;
case 0xFE: t = "CCID timed out while talking to the ICC"; break;
case 0xFF: t = "Host aborted the current activity"; break;
default:
if (ec > 0 && ec < 128)
sprintf (buffer, "Parameter error at offset %d", ec);
else
sprintf (buffer, "Error code %02X", ec);
t = buffer;
break;
}
DEBUGOUT_1 ("CCID command failed: %s\n", t);
}
static void
print_pr_data (const unsigned char *data, size_t datalen, size_t off)
{
int any = 0;
for (; off < datalen; off++)
{
if (!any || !(off % 16))
{
if (any)
DEBUGOUT_LF ();
DEBUGOUT_1 (" [%04lu] ", (unsigned long) off);
}
DEBUGOUT_CONT_1 (" %02X", data[off]);
any = 1;
}
if (any && (off % 16))
DEBUGOUT_LF ();
}
static void
print_p2r_header (const char *name, const unsigned char *msg, size_t msglen)
{
DEBUGOUT_1 ("%s:\n", name);
if (msglen < 7)
return;
DEBUGOUT_1 (" dwLength ..........: %u\n", convert_le_u32 (msg+1));
DEBUGOUT_1 (" bSlot .............: %u\n", msg[5]);
DEBUGOUT_1 (" bSeq ..............: %u\n", msg[6]);
}
static void
print_p2r_iccpoweron (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_IccPowerOn", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_2 (" bPowerSelect ......: 0x%02x (%s)\n", msg[7],
msg[7] == 0? "auto":
msg[7] == 1? "5.0 V":
msg[7] == 2? "3.0 V":
msg[7] == 3? "1.8 V":"");
print_pr_data (msg, msglen, 8);
}
static void
print_p2r_iccpoweroff (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_IccPowerOff", msg, msglen);
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_getslotstatus (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_GetSlotStatus", msg, msglen);
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_xfrblock (const unsigned char *msg, size_t msglen)
{
unsigned int val;
print_p2r_header ("PC_to_RDR_XfrBlock", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bBWI ..............: 0x%02x\n", msg[7]);
val = convert_le_u16 (msg+8);
DEBUGOUT_2 (" wLevelParameter ...: 0x%04x%s\n", val,
val == 1? " (continued)":
val == 2? " (continues+ends)":
val == 3? " (continues+continued)":
val == 16? " (DataBlock-expected)":"");
print_pr_data (msg, msglen, 10);
}
static void
print_p2r_getparameters (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_GetParameters", msg, msglen);
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_resetparameters (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_ResetParameters", msg, msglen);
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_setparameters (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_SetParameters", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bProtocolNum ......: 0x%02x\n", msg[7]);
print_pr_data (msg, msglen, 8);
}
static void
print_p2r_escape (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_Escape", msg, msglen);
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_iccclock (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_IccClock", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bClockCommand .....: 0x%02x\n", msg[7]);
print_pr_data (msg, msglen, 8);
}
static void
print_p2r_to0apdu (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_T0APDU", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bmChanges .........: 0x%02x\n", msg[7]);
DEBUGOUT_1 (" bClassGetResponse .: 0x%02x\n", msg[8]);
DEBUGOUT_1 (" bClassEnvelope ....: 0x%02x\n", msg[9]);
print_pr_data (msg, msglen, 10);
}
static void
print_p2r_secure (const unsigned char *msg, size_t msglen)
{
unsigned int val;
print_p2r_header ("PC_to_RDR_Secure", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bBMI ..............: 0x%02x\n", msg[7]);
val = convert_le_u16 (msg+8);
DEBUGOUT_2 (" wLevelParameter ...: 0x%04x%s\n", val,
val == 1? " (continued)":
val == 2? " (continues+ends)":
val == 3? " (continues+continued)":
val == 16? " (DataBlock-expected)":"");
print_pr_data (msg, msglen, 10);
}
static void
print_p2r_mechanical (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_Mechanical", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bFunction .........: 0x%02x\n", msg[7]);
print_pr_data (msg, msglen, 8);
}
static void
print_p2r_abort (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_Abort", msg, msglen);
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_setdatarate (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("PC_to_RDR_SetDataRate", msg, msglen);
if (msglen < 10)
return;
print_pr_data (msg, msglen, 7);
}
static void
print_p2r_unknown (const unsigned char *msg, size_t msglen)
{
print_p2r_header ("Unknown PC_to_RDR command", msg, msglen);
if (msglen < 10)
return;
print_pr_data (msg, msglen, 0);
}
static void
print_r2p_header (const char *name, const unsigned char *msg, size_t msglen)
{
DEBUGOUT_1 ("%s:\n", name);
if (msglen < 9)
return;
DEBUGOUT_1 (" dwLength ..........: %u\n", convert_le_u32 (msg+1));
DEBUGOUT_1 (" bSlot .............: %u\n", msg[5]);
DEBUGOUT_1 (" bSeq ..............: %u\n", msg[6]);
DEBUGOUT_1 (" bStatus ...........: %u\n", msg[7]);
if (msg[8])
DEBUGOUT_1 (" bError ............: %u\n", msg[8]);
}
static void
print_r2p_datablock (const unsigned char *msg, size_t msglen)
{
print_r2p_header ("RDR_to_PC_DataBlock", msg, msglen);
if (msglen < 10)
return;
if (msg[9])
DEBUGOUT_2 (" bChainParameter ...: 0x%02x%s\n", msg[9],
msg[9] == 1? " (continued)":
msg[9] == 2? " (continues+ends)":
msg[9] == 3? " (continues+continued)":
msg[9] == 16? " (XferBlock-expected)":"");
print_pr_data (msg, msglen, 10);
}
static void
print_r2p_slotstatus (const unsigned char *msg, size_t msglen)
{
print_r2p_header ("RDR_to_PC_SlotStatus", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_2 (" bClockStatus ......: 0x%02x%s\n", msg[9],
msg[9] == 0? " (running)":
msg[9] == 1? " (stopped-L)":
msg[9] == 2? " (stopped-H)":
msg[9] == 3? " (stopped)":"");
print_pr_data (msg, msglen, 10);
}
static void
print_r2p_parameters (const unsigned char *msg, size_t msglen)
{
print_r2p_header ("RDR_to_PC_Parameters", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" protocol ..........: T=%d\n", msg[9]);
if (msglen == 17 && msg[9] == 1)
{
/* Protocol T=1. */
DEBUGOUT_1 (" bmFindexDindex ....: %02X\n", msg[10]);
DEBUGOUT_1 (" bmTCCKST1 .........: %02X\n", msg[11]);
DEBUGOUT_1 (" bGuardTimeT1 ......: %02X\n", msg[12]);
DEBUGOUT_1 (" bmWaitingIntegersT1: %02X\n", msg[13]);
DEBUGOUT_1 (" bClockStop ........: %02X\n", msg[14]);
DEBUGOUT_1 (" bIFSC .............: %d\n", msg[15]);
DEBUGOUT_1 (" bNadValue .........: %d\n", msg[16]);
}
else
print_pr_data (msg, msglen, 10);
}
static void
print_r2p_escape (const unsigned char *msg, size_t msglen)
{
print_r2p_header ("RDR_to_PC_Escape", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" buffer[9] .........: %02X\n", msg[9]);
print_pr_data (msg, msglen, 10);
}
static void
print_r2p_datarate (const unsigned char *msg, size_t msglen)
{
print_r2p_header ("RDR_to_PC_DataRate", msg, msglen);
if (msglen < 10)
return;
if (msglen >= 18)
{
DEBUGOUT_1 (" dwClockFrequency ..: %u\n", convert_le_u32 (msg+10));
DEBUGOUT_1 (" dwDataRate ..... ..: %u\n", convert_le_u32 (msg+14));
print_pr_data (msg, msglen, 18);
}
else
print_pr_data (msg, msglen, 10);
}
static void
print_r2p_unknown (const unsigned char *msg, size_t msglen)
{
print_r2p_header ("Unknown RDR_to_PC command", msg, msglen);
if (msglen < 10)
return;
DEBUGOUT_1 (" bMessageType ......: %02X\n", msg[0]);
DEBUGOUT_1 (" buffer[9] .........: %02X\n", msg[9]);
print_pr_data (msg, msglen, 10);
}
/* Given a handle used for special transport prepare it for use. In
particular setup all information in way that resembles what
parse_cccid_descriptor does. */
static void
prepare_special_transport (ccid_driver_t handle)
{
assert (!handle->id_vendor);
handle->nonnull_nad = 0;
handle->auto_ifsd = 0;
handle->max_ifsd = 32;
handle->max_ccid_msglen = CCID_MAX_BUF;
handle->has_pinpad = 0;
handle->apdu_level = 0;
switch (handle->id_product)
{
case TRANSPORT_CM4040:
DEBUGOUT ("setting up transport for CardMan 4040\n");
handle->apdu_level = 1;
break;
default: assert (!"transport not defined");
}
}
/* Parse a CCID descriptor, optionally print all available features
and test whether this reader is usable by this driver. Returns 0
if it is usable.
Note, that this code is based on the one in lsusb.c of the
usb-utils package, I wrote on 2003-09-01. -wk. */
static int
-parse_ccid_descriptor (ccid_driver_t handle,
+parse_ccid_descriptor (ccid_driver_t handle, unsigned short bcd_device,
const unsigned char *buf, size_t buflen)
{
unsigned int i;
unsigned int us;
int have_t1 = 0, have_tpdu=0;
-
handle->nonnull_nad = 0;
handle->auto_ifsd = 0;
handle->max_ifsd = 32;
handle->has_pinpad = 0;
handle->apdu_level = 0;
handle->auto_voltage = 0;
handle->auto_param = 0;
handle->auto_pps = 0;
DEBUGOUT_3 ("idVendor: %04X idProduct: %04X bcdDevice: %04X\n",
- handle->id_vendor, handle->id_product, handle->bcd_device);
+ handle->id_vendor, handle->id_product, bcd_device);
if (buflen < 54 || buf[0] < 54)
{
DEBUGOUT ("CCID device descriptor is too short\n");
return -1;
}
DEBUGOUT ("ChipCard Interface Descriptor:\n");
DEBUGOUT_1 (" bLength %5u\n", buf[0]);
DEBUGOUT_1 (" bDescriptorType %5u\n", buf[1]);
DEBUGOUT_2 (" bcdCCID %2x.%02x", buf[3], buf[2]);
if (buf[3] != 1 || buf[2] != 0)
DEBUGOUT_CONT(" (Warning: Only accurate for version 1.0)");
DEBUGOUT_LF ();
DEBUGOUT_1 (" nMaxSlotIndex %5u\n", buf[4]);
DEBUGOUT_2 (" bVoltageSupport %5u %s\n",
buf[5], (buf[5] == 1? "5.0V" : buf[5] == 2? "3.0V"
: buf[5] == 3? "1.8V":"?"));
us = convert_le_u32 (buf+6);
DEBUGOUT_1 (" dwProtocols %5u ", us);
if ((us & 1))
DEBUGOUT_CONT (" T=0");
if ((us & 2))
{
DEBUGOUT_CONT (" T=1");
have_t1 = 1;
}
if ((us & ~3))
DEBUGOUT_CONT (" (Invalid values detected)");
DEBUGOUT_LF ();
us = convert_le_u32(buf+10);
DEBUGOUT_1 (" dwDefaultClock %5u\n", us);
us = convert_le_u32(buf+14);
DEBUGOUT_1 (" dwMaxiumumClock %5u\n", us);
DEBUGOUT_1 (" bNumClockSupported %5u\n", buf[18]);
us = convert_le_u32(buf+19);
DEBUGOUT_1 (" dwDataRate %7u bps\n", us);
us = convert_le_u32(buf+23);
DEBUGOUT_1 (" dwMaxDataRate %7u bps\n", us);
DEBUGOUT_1 (" bNumDataRatesSupp. %5u\n", buf[27]);
us = convert_le_u32(buf+28);
DEBUGOUT_1 (" dwMaxIFSD %5u\n", us);
handle->max_ifsd = us;
us = convert_le_u32(buf+32);
DEBUGOUT_1 (" dwSyncProtocols %08X ", us);
if ((us&1))
DEBUGOUT_CONT ( " 2-wire");
if ((us&2))
DEBUGOUT_CONT ( " 3-wire");
if ((us&4))
DEBUGOUT_CONT ( " I2C");
DEBUGOUT_LF ();
us = convert_le_u32(buf+36);
DEBUGOUT_1 (" dwMechanical %08X ", us);
if ((us & 1))
DEBUGOUT_CONT (" accept");
if ((us & 2))
DEBUGOUT_CONT (" eject");
if ((us & 4))
DEBUGOUT_CONT (" capture");
if ((us & 8))
DEBUGOUT_CONT (" lock");
DEBUGOUT_LF ();
us = convert_le_u32(buf+40);
DEBUGOUT_1 (" dwFeatures %08X\n", us);
if ((us & 0x0002))
{
DEBUGOUT (" Auto configuration based on ATR (assumes auto voltage)\n");
handle->auto_voltage = 1;
}
if ((us & 0x0004))
DEBUGOUT (" Auto activation on insert\n");
if ((us & 0x0008))
{
DEBUGOUT (" Auto voltage selection\n");
handle->auto_voltage = 1;
}
if ((us & 0x0010))
DEBUGOUT (" Auto clock change\n");
if ((us & 0x0020))
DEBUGOUT (" Auto baud rate change\n");
if ((us & 0x0040))
{
DEBUGOUT (" Auto parameter negotiation made by CCID\n");
handle->auto_param = 1;
}
else if ((us & 0x0080))
{
DEBUGOUT (" Auto PPS made by CCID\n");
handle->auto_pps = 1;
}
if ((us & (0x0040 | 0x0080)) == (0x0040 | 0x0080))
DEBUGOUT (" WARNING: conflicting negotiation features\n");
if ((us & 0x0100))
DEBUGOUT (" CCID can set ICC in clock stop mode\n");
if ((us & 0x0200))
{
DEBUGOUT (" NAD value other than 0x00 accepted\n");
handle->nonnull_nad = 1;
}
if ((us & 0x0400))
{
DEBUGOUT (" Auto IFSD exchange\n");
handle->auto_ifsd = 1;
}
if ((us & 0x00010000))
{
DEBUGOUT (" TPDU level exchange\n");
have_tpdu = 1;
}
else if ((us & 0x00020000))
{
DEBUGOUT (" Short APDU level exchange\n");
handle->apdu_level = 1;
}
else if ((us & 0x00040000))
{
DEBUGOUT (" Short and extended APDU level exchange\n");
handle->apdu_level = 2;
}
else if ((us & 0x00070000))
DEBUGOUT (" WARNING: conflicting exchange levels\n");
us = convert_le_u32(buf+44);
DEBUGOUT_1 (" dwMaxCCIDMsgLen %5u\n", us);
handle->max_ccid_msglen = us;
DEBUGOUT ( " bClassGetResponse ");
if (buf[48] == 0xff)
DEBUGOUT_CONT ("echo\n");
else
DEBUGOUT_CONT_1 (" %02X\n", buf[48]);
DEBUGOUT ( " bClassEnvelope ");
if (buf[49] == 0xff)
DEBUGOUT_CONT ("echo\n");
else
DEBUGOUT_CONT_1 (" %02X\n", buf[48]);
DEBUGOUT ( " wlcdLayout ");
if (!buf[50] && !buf[51])
DEBUGOUT_CONT ("none\n");
else
DEBUGOUT_CONT_2 ("%u cols %u lines\n", buf[50], buf[51]);
DEBUGOUT_1 (" bPINSupport %5u ", buf[52]);
if ((buf[52] & 1))
{
DEBUGOUT_CONT ( " verification");
handle->has_pinpad |= 1;
}
if ((buf[52] & 2))
{
DEBUGOUT_CONT ( " modification");
handle->has_pinpad |= 2;
}
DEBUGOUT_LF ();
DEBUGOUT_1 (" bMaxCCIDBusySlots %5u\n", buf[53]);
if (buf[0] > 54)
{
DEBUGOUT (" junk ");
for (i=54; i < buf[0]-54; i++)
DEBUGOUT_CONT_1 (" %02X", buf[i]);
DEBUGOUT_LF ();
}
if (!have_t1 || !(have_tpdu || handle->apdu_level))
{
DEBUGOUT ("this drivers requires that the reader supports T=1, "
"TPDU or APDU level exchange - this is not available\n");
return -1;
}
/* SCM drivers get stuck in their internal USB stack if they try to
send a frame of n*wMaxPacketSize back to us. Given that
wMaxPacketSize is 64 for these readers we set the IFSD to a value
lower than that:
64 - 10 CCID header - 4 T1frame - 2 reserved = 48
Product Ids:
0xe001 - SCR 331
0x5111 - SCR 331-DI
0x5115 - SCR 335
0xe003 - SPR 532
The
0x5117 - SCR 3320 USB ID-000 reader
seems to be very slow but enabling this workaround boosts the
performance to a a more or less acceptable level (tested by David).
*/
if (handle->id_vendor == VENDOR_SCM
&& handle->max_ifsd > 48
- && ( (handle->id_product == SCM_SCR331 && handle->bcd_device < 0x0516)
- ||(handle->id_product == SCM_SCR331DI && handle->bcd_device < 0x0620)
- ||(handle->id_product == SCM_SCR335 && handle->bcd_device < 0x0514)
- ||(handle->id_product == SCM_SPR532 && handle->bcd_device < 0x0504)
- ||(handle->id_product == SCM_SCR3320 && handle->bcd_device < 0x0522)
+ && ( (handle->id_product == SCM_SCR331 && bcd_device < 0x0516)
+ ||(handle->id_product == SCM_SCR331DI && bcd_device < 0x0620)
+ ||(handle->id_product == SCM_SCR335 && bcd_device < 0x0514)
+ ||(handle->id_product == SCM_SPR532 && bcd_device < 0x0504)
+ ||(handle->id_product == SCM_SCR3320 && bcd_device < 0x0522)
))
{
DEBUGOUT ("enabling workaround for buggy SCM readers\n");
handle->max_ifsd = 48;
}
if (handle->id_vendor == VENDOR_GEMPC)
{
DEBUGOUT ("enabling product quirk: disable non-null NAD\n");
handle->nonnull_nad = 0;
}
return 0;
}
static char *
get_escaped_usb_string (libusb_device_handle *idev, int idx,
const char *prefix, const char *suffix)
{
int rc;
unsigned char buf[280];
unsigned char *s;
unsigned int langid;
size_t i, n, len;
char *result;
if (!idx)
return NULL;
/* Fixme: The next line is for the current Valgrid without support
for USB IOCTLs. */
memset (buf, 0, sizeof buf);
/* First get the list of supported languages and use the first one.
If we do don't find it we try to use English. Note that this is
all in a 2 bute Unicode encoding using little endian. */
rc = libusb_control_transfer (idev, LIBUSB_ENDPOINT_IN,
LIBUSB_REQUEST_GET_DESCRIPTOR,
(LIBUSB_DT_STRING << 8), 0,
(char*)buf, sizeof buf, 1000 /* ms timeout */);
if (rc < 4)
langid = 0x0409; /* English. */
else
langid = (buf[3] << 8) | buf[2];
rc = libusb_control_transfer (idev, LIBUSB_ENDPOINT_IN,
LIBUSB_REQUEST_GET_DESCRIPTOR,
(LIBUSB_DT_STRING << 8) + idx, langid,
(char*)buf, sizeof buf, 1000 /* ms timeout */);
if (rc < 2 || buf[1] != LIBUSB_DT_STRING)
return NULL; /* Error or not a string. */
len = buf[0];
if (len > rc)
return NULL; /* Larger than our buffer. */
for (s=buf+2, i=2, n=0; i+1 < len; i += 2, s += 2)
{
if (s[1])
n++; /* High byte set. */
else if (*s <= 0x20 || *s >= 0x7f || *s == '%' || *s == ':')
n += 3 ;
else
n++;
}
result = malloc (strlen (prefix) + n + strlen (suffix) + 1);
if (!result)
return NULL;
strcpy (result, prefix);
n = strlen (prefix);
for (s=buf+2, i=2; i+1 < len; i += 2, s += 2)
{
if (s[1])
result[n++] = '\xff'; /* High byte set. */
else if (*s <= 0x20 || *s >= 0x7f || *s == '%' || *s == ':')
{
sprintf (result+n, "%%%02X", *s);
n += 3;
}
else
result[n++] = *s;
}
strcpy (result+n, suffix);
return result;
}
/* This function creates an reader id to be used to find the same
physical reader after a reset. It returns an allocated and possibly
percent escaped string or NULL if not enough memory is available. */
static char *
make_reader_id (libusb_device_handle *idev,
unsigned int vendor, unsigned int product,
unsigned char serialno_index)
{
char *rid;
char prefix[20];
sprintf (prefix, "%04X:%04X:", (vendor & 0xffff), (product & 0xffff));
rid = get_escaped_usb_string (idev, serialno_index, prefix, ":0");
if (!rid)
{
rid = malloc (strlen (prefix) + 3 + 1);
if (!rid)
return NULL;
strcpy (rid, prefix);
strcat (rid, "X:0");
}
return rid;
}
/* Helper to find the endpoint from an interface descriptor. */
static int
find_endpoint (const struct libusb_interface_descriptor *ifcdesc, int mode)
{
int no;
int want_bulk_in = 0;
if (mode == 1)
want_bulk_in = 0x80;
for (no=0; no < ifcdesc->bNumEndpoints; no++)
{
const struct libusb_endpoint_descriptor *ep = ifcdesc->endpoint + no;
if (ep->bDescriptorType != LIBUSB_DT_ENDPOINT)
;
else if (mode == 2
&& ((ep->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK)
== LIBUSB_TRANSFER_TYPE_INTERRUPT)
&& (ep->bEndpointAddress & 0x80))
return ep->bEndpointAddress;
else if (((ep->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK)
== LIBUSB_TRANSFER_TYPE_BULK)
&& (ep->bEndpointAddress & 0x80) == want_bulk_in)
return ep->bEndpointAddress;
}
return -1;
}
/* Helper for scan_or_find_devices. This function returns true if a
requested device has been found or the caller should stop scanning
for other reasons. */
static int
scan_or_find_usb_device (int scan_mode,
int readerno, int *count, char **rid_list,
const char *readerid,
struct libusb_device *dev,
char **r_rid,
struct libusb_device_descriptor *desc,
libusb_device_handle **r_idev,
unsigned char **ifcdesc_extra,
size_t *ifcdesc_extra_len,
int *interface_number, int *setting_number,
int *ep_bulk_out, int *ep_bulk_in, int *ep_intr)
{
int ifc_no;
int set_no;
const struct libusb_interface_descriptor *ifcdesc;
char *rid;
libusb_device_handle *idev = NULL;
int err;
struct libusb_config_descriptor *config;
err = libusb_get_device_descriptor (dev, desc);
if (err)
return 0;
*r_idev = NULL;
err = libusb_get_active_config_descriptor (dev, &config);
if (err)
return 0;
for (ifc_no=0; ifc_no < config->bNumInterfaces; ifc_no++)
for (set_no=0; set_no < config->interface[ifc_no].num_altsetting; set_no++)
{
ifcdesc = (config->interface[ifc_no].altsetting + set_no);
/* The second condition is for older SCM SPR 532 who did
not know about the assigned CCID class. The third
condition does the same for a Cherry SmartTerminal
ST-2000. Instead of trying to interpret the strings
we simply check the product ID. */
if (ifcdesc && ifcdesc->extra
&& ((ifcdesc->bInterfaceClass == 11
&& ifcdesc->bInterfaceSubClass == 0
&& ifcdesc->bInterfaceProtocol == 0)
|| (ifcdesc->bInterfaceClass == 255
&& desc->idVendor == VENDOR_SCM
&& desc->idProduct == SCM_SPR532)
|| (ifcdesc->bInterfaceClass == 255
&& desc->idVendor == VENDOR_CHERRY
&& desc->idProduct == CHERRY_ST2000)))
{
++*count;
if (!scan_mode && ((readerno > 0 && readerno != *count - 1)))
continue;
err = libusb_open (dev, &idev);
if (err)
{
DEBUGOUT_1 ("usb_open failed: %s\n", libusb_error_name (err));
continue; /* with next setting. */
}
rid = make_reader_id (idev, desc->idVendor, desc->idProduct,
desc->iSerialNumber);
if (!rid)
{
libusb_free_config_descriptor (config);
return 0;
}
if (!scan_mode && readerno == -1 && readerid
&& strncmp (rid, readerid, strlen (readerid)))
continue;
if (scan_mode)
{
char *p;
/* We are collecting infos about all
available CCID readers. Store them and
continue. */
DEBUGOUT_2 ("found CCID reader %d (ID=%s)\n", *count, rid);
p = malloc ((*rid_list? strlen (*rid_list):0) + 1
+ strlen (rid) + 1);
if (p)
{
*p = 0;
if (*rid_list)
{
strcat (p, *rid_list);
free (*rid_list);
}
strcat (p, rid);
strcat (p, "\n");
*rid_list = p;
}
else /* Out of memory. */
{
libusb_free_config_descriptor (config);
free (rid);
return 0;
}
}
else
{
/* We found the requested reader. */
if (ifcdesc_extra && ifcdesc_extra_len)
{
*ifcdesc_extra = malloc (ifcdesc->extra_length);
if (!*ifcdesc_extra)
{
libusb_close (idev);
free (rid);
libusb_free_config_descriptor (config);
return 1; /* Out of core. */
}
memcpy (*ifcdesc_extra, ifcdesc->extra,
ifcdesc->extra_length);
*ifcdesc_extra_len = ifcdesc->extra_length;
}
if (interface_number)
*interface_number = ifc_no;
if (setting_number)
*setting_number = set_no;
if (ep_bulk_out)
*ep_bulk_out = find_endpoint (ifcdesc, 0);
if (ep_bulk_in)
*ep_bulk_in = find_endpoint (ifcdesc, 1);
if (ep_intr)
*ep_intr = find_endpoint (ifcdesc, 2);
if (r_rid)
{
*r_rid = rid;
rid = NULL;
}
else
free (rid);
*r_idev = idev;
libusb_free_config_descriptor (config);
return 1; /* Found requested device. */
}
free (rid);
libusb_close (idev);
idev = NULL;
}
}
libusb_free_config_descriptor (config);
return 0;
}
/* Combination function to either scan all CCID devices or to find and
open one specific device.
The function returns 0 if a reader has been found or when a scan
returned without error.
With READERNO = -1 and READERID is NULL, scan mode is used and
R_RID should be the address where to store the list of reader_ids
we found. If on return this list is empty, no CCID device has been
found; otherwise it points to an allocated linked list of reader
IDs. Note that in this mode the function always returns NULL.
With READERNO >= 0 or READERID is not NULL find mode is used. This
uses the same algorithm as the scan mode but stops and returns at
the entry number READERNO and return the handle for the the opened
USB device. If R_RID is not NULL it will receive the reader ID of
that device. If R_DEV is not NULL it will the device pointer of
that device. If IFCDESC_EXTRA is NOT NULL it will receive a
malloced copy of the interfaces "extra: data filed;
IFCDESC_EXTRA_LEN receive the length of this field. If there is
no reader with number READERNO or that reader is not usable by our
implementation NULL will be returned. The caller must close a
returned USB device handle and free (if not passed as NULL) the
returned reader ID info as well as the IFCDESC_EXTRA. On error
NULL will get stored at R_RID, R_DEV, IFCDESC_EXTRA and
IFCDESC_EXTRA_LEN. With READERID being -1 the function stops if
the READERID was found.
If R_FD is not -1 on return the device is not using USB for
transport but the device associated with that file descriptor. In
this case INTERFACE will receive the transport type and the other
USB specific return values are not used; the return value is
(void*)(1).
Note that the first entry of the returned reader ID list in scan mode
corresponds with a READERNO of 0 in find mode.
*/
static int
scan_or_find_devices (int readerno, const char *readerid,
char **r_rid,
struct libusb_device_descriptor *r_desc,
unsigned char **ifcdesc_extra,
size_t *ifcdesc_extra_len,
int *interface_number, int *setting_number,
int *ep_bulk_out, int *ep_bulk_in, int *ep_intr,
libusb_device_handle **r_idev,
int *r_fd)
{
char *rid_list = NULL;
int count = 0;
libusb_device **dev_list = NULL;
libusb_device *dev;
libusb_device_handle *idev = NULL;
int scan_mode = (readerno == -1 && !readerid);
int i;
ssize_t n;
struct libusb_device_descriptor desc;
/* Set return values to a default. */
if (r_rid)
*r_rid = NULL;
if (ifcdesc_extra)
*ifcdesc_extra = NULL;
if (ifcdesc_extra_len)
*ifcdesc_extra_len = 0;
if (interface_number)
*interface_number = 0;
if (setting_number)
*setting_number = 0;
if (r_idev)
*r_idev = NULL;
if (r_fd)
*r_fd = -1;
/* See whether we want scan or find mode. */
if (scan_mode)
{
assert (r_rid);
}
n = libusb_get_device_list (NULL, &dev_list);
for (i = 0; i < n; i++)
{
dev = dev_list[i];
if (scan_or_find_usb_device (scan_mode, readerno, &count, &rid_list,
readerid,
dev,
r_rid,
&desc,
&idev,
ifcdesc_extra,
ifcdesc_extra_len,
interface_number, setting_number,
ep_bulk_out, ep_bulk_in, ep_intr))
{
libusb_free_device_list (dev_list, 1);
/* Found requested device or out of core. */
if (!idev)
{
free (rid_list);
return -1; /* error */
}
*r_idev = idev;
if (r_desc)
memcpy (r_desc, &desc, sizeof (struct libusb_device_descriptor));
return 0;
}
}
libusb_free_device_list (dev_list, 1);
/* Now check whether there are any devices with special transport types. */
for (i=0; transports[i].name; i++)
{
int fd;
char *rid, *p;
fd = open (transports[i].name, O_RDWR);
if (fd == -1 && scan_mode && errno == EBUSY)
{
/* Ignore this error in scan mode because it indicates that
the device exists but is already open (most likely by us)
and thus in general suitable as a reader. */
}
else if (fd == -1)
{
DEBUGOUT_2 ("failed to open '%s': %s\n",
transports[i].name, strerror (errno));
continue;
}
rid = malloc (strlen (transports[i].name) + 30 + 10);
if (!rid)
{
if (fd != -1)
close (fd);
free (rid_list);
return -1; /* Error. */
}
sprintf (rid, "0000:%04X:%s:0", transports[i].type, transports[i].name);
if (scan_mode)
{
DEBUGOUT_2 ("found CCID reader %d (ID=%s)\n", count, rid);
p = malloc ((rid_list? strlen (rid_list):0) + 1 + strlen (rid) + 1);
if (!p)
{
if (fd != -1)
close (fd);
free (rid_list);
free (rid);
return -1; /* Error. */
}
*p = 0;
if (rid_list)
{
strcat (p, rid_list);
free (rid_list);
}
strcat (p, rid);
strcat (p, "\n");
rid_list = p;
++count;
}
else if (!readerno ||
(readerno < 0 && readerid && !strcmp (readerid, rid)))
{
/* Found requested device. */
if (interface_number)
*interface_number = transports[i].type;
if (r_rid)
*r_rid = rid;
else
free (rid);
if (r_fd)
*r_fd = fd;
return 0; /* Okay, found device */
}
else /* This is not yet the reader we want. */
{
if (readerno >= 0)
--readerno;
}
free (rid);
if (fd != -1)
close (fd);
}
if (scan_mode)
{
*r_rid = rid_list;
return 0;
}
else
return -1;
}
/* Set the level of debugging to LEVEL and return the old level. -1
just returns the old level. A level of 0 disables debugging, 1
enables debugging, 2 enables additional tracing of the T=1
protocol, 3 additionally enables debugging for GetSlotStatus, other
values are not yet defined.
Note that libusb may provide its own debugging feature which is
enabled by setting the envvar USB_DEBUG. */
int
ccid_set_debug_level (int level)
{
int old = debug_level;
if (level != -1)
debug_level = level;
return old;
}
char *
ccid_get_reader_list (void)
{
char *reader_list;
if (!initialized_usb)
{
libusb_init (NULL);
initialized_usb = 1;
}
if (scan_or_find_devices (-1, NULL, &reader_list, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL))
return NULL; /* Error. */
return reader_list;
}
/* Vendor specific custom initialization. */
static int
ccid_vendor_specific_init (ccid_driver_t handle)
{
if (handle->id_vendor == VENDOR_VEGA && handle->id_product == VEGA_ALPHA)
{
int r;
/*
* Vega alpha has a feature to show retry counter on the pinpad
* display. But it assumes that the card returns the value of
* retry counter by VERIFY with empty data (return code of
* 63Cx). Unfortunately, existing OpenPGP cards don't support
* VERIFY command with empty data. This vendor specific command
* sequence is to disable the feature.
*/
const unsigned char cmd[] = { '\xb5', '\x01', '\x00', '\x03', '\x00' };
r = send_escape_cmd (handle, cmd, sizeof (cmd), NULL, 0, NULL);
if (r != 0 && r != CCID_DRIVER_ERR_CARD_INACTIVE
&& r != CCID_DRIVER_ERR_NO_CARD)
return r;
}
return 0;
}
-/* Open the reader with the internal number READERNO and return a
- pointer to be used as handle in HANDLE. Returns 0 on success. */
-int
-ccid_open_reader (ccid_driver_t *handle, const char *readerid,
- const char **rdrname_p)
-{
- int rc = 0;
- libusb_device_handle *idev = NULL;
- int dev_fd = -1;
- char *rid = NULL;
- unsigned char *ifcdesc_extra = NULL;
+#define MAX_DEVICE 4 /* See MAX_READER in apdu.c. */
+
+struct ccid_dev_table {
+ int n; /* Index to ccid_usb_dev_list */
+ int transport;
+ int interface_number;
+ int setting_number;
+ unsigned char *ifcdesc_extra;
+ int ep_bulk_out;
+ int ep_bulk_in;
+ int ep_intr;
size_t ifcdesc_extra_len;
- int readerno;
- int ifc_no, set_no, ep_bulk_out, ep_bulk_in, ep_intr;
- struct libusb_device_descriptor desc;
+};
- *handle = NULL;
+static libusb_device **ccid_usb_dev_list;
+static struct ccid_dev_table ccid_dev_table[MAX_DEVICE];
+
+gpg_error_t
+ccid_dev_scan (int *idx_max_p, struct ccid_dev_table **t_p)
+{
+ ssize_t n;
+ libusb_device *dev;
+ int i;
+ int ifc_no;
+ int set_no;
+ int idx = 0;
+ int err = 0;
if (!initialized_usb)
{
libusb_init (NULL);
initialized_usb = 1;
}
- /* See whether we want to use the reader ID string or a reader
- number. A readerno of -1 indicates that the reader ID string is
- to be used. */
- if (readerid && strchr (readerid, ':'))
- readerno = -1; /* We want to use the readerid. */
- else if (readerid)
+ n = libusb_get_device_list (NULL, &ccid_usb_dev_list);
+ for (i = 0; i < n; i++)
+ {
+ struct libusb_config_descriptor *config;
+ struct libusb_device_descriptor desc;
+
+ dev = ccid_usb_dev_list[i];
+
+ if (libusb_get_device_descriptor (dev, &desc))
+ continue;
+
+ if (libusb_get_active_config_descriptor (dev, &config))
+ continue;
+
+ for (ifc_no=0; ifc_no < config->bNumInterfaces; ifc_no++)
+ for (set_no=0; set_no < config->interface[ifc_no].num_altsetting;
+ set_no++)
+ {
+ const struct libusb_interface_descriptor *ifcdesc;
+
+ ifcdesc = &config->interface[ifc_no].altsetting[set_no];
+ /* The second condition is for older SCM SPR 532 who did
+ not know about the assigned CCID class. The third
+ condition does the same for a Cherry SmartTerminal
+ ST-2000. Instead of trying to interpret the strings
+ we simply check the product ID. */
+ if (ifcdesc && ifcdesc->extra
+ && ((ifcdesc->bInterfaceClass == 11
+ && ifcdesc->bInterfaceSubClass == 0
+ && ifcdesc->bInterfaceProtocol == 0)
+ || (ifcdesc->bInterfaceClass == 255
+ && desc.idVendor == VENDOR_SCM
+ && desc.idProduct == SCM_SPR532)
+ || (ifcdesc->bInterfaceClass == 255
+ && desc.idVendor == VENDOR_CHERRY
+ && desc.idProduct == CHERRY_ST2000)))
+ {
+ /* Found a reader. */
+ unsigned char *ifcdesc_extra;
+
+ ifcdesc_extra = malloc (ifcdesc->extra_length);
+ if (!ifcdesc_extra)
+ {
+ err = gpg_error_from_syserror ();
+ libusb_free_config_descriptor (config);
+ goto scan_finish;
+ }
+ memcpy (ifcdesc_extra, ifcdesc->extra, ifcdesc->extra_length);
+
+ ccid_dev_table[idx].transport = TRANSPORT_USB;
+ ccid_dev_table[idx].n = i;
+ ccid_dev_table[idx].interface_number = ifc_no;
+ ccid_dev_table[idx].setting_number = set_no;
+ ccid_dev_table[idx].ifcdesc_extra = ifcdesc_extra;
+ ccid_dev_table[idx].ifcdesc_extra_len = ifcdesc->extra_length;
+ ccid_dev_table[idx].ep_bulk_out = find_endpoint (ifcdesc, 0);
+ ccid_dev_table[idx].ep_bulk_in = find_endpoint (ifcdesc, 1);
+ ccid_dev_table[idx].ep_intr = find_endpoint (ifcdesc, 2);
+
+ idx++;
+ if (idx >= MAX_DEVICE)
+ {
+ libusb_free_config_descriptor (config);
+ err = 0;
+ goto scan_finish;
+ }
+ }
+ }
+
+ libusb_free_config_descriptor (config);
+ }
+
+ /* Now check whether there are any devices with special transport types. */
+ for (i=0; transports[i].name; i++)
{
- readerno = atoi (readerid);
- if (readerno < 0)
+ if (access (transports[i].name, (R_OK|W_OK)) == 0)
{
- DEBUGOUT ("no CCID readers found\n");
- rc = CCID_DRIVER_ERR_NO_READER;
- goto leave;
+ /* Found a device. */
+ DEBUGOUT_1 ("Found CCID reader %d\n", idx);
+
+ ccid_dev_table[idx].transport = TRANSPORT_CM4040;
+ ccid_dev_table[idx].n = i;
+ ccid_dev_table[idx].interface_number = 0;
+ ccid_dev_table[idx].setting_number = 0;
+ ccid_dev_table[idx].ifcdesc_extra = NULL;
+ ccid_dev_table[idx].ifcdesc_extra_len = 0;
+ ccid_dev_table[idx].ep_bulk_out = 0;
+ ccid_dev_table[idx].ep_bulk_in = 0;
+ ccid_dev_table[idx].ep_intr = 0;
+
+ idx++;
+ if (idx >= MAX_DEVICE)
+ goto scan_finish;
}
}
- else
- readerno = 0; /* Default. */
- if (scan_or_find_devices (readerno, readerid, &rid, &desc, &ifcdesc_extra,
- &ifcdesc_extra_len, &ifc_no, &set_no, &ep_bulk_out,
- &ep_bulk_in, &ep_intr, &idev, &dev_fd))
+ scan_finish:
+
+ if (err)
+ {
+ *idx_max_p = 0;
+ *t_p = NULL;
+ for (i = 0; i < idx; i++)
+ {
+ free (ccid_dev_table[idx].ifcdesc_extra);
+ ccid_dev_table[idx].transport = 0;
+ ccid_dev_table[idx].n = 0;
+ ccid_dev_table[idx].interface_number = 0;
+ ccid_dev_table[idx].setting_number = 0;
+ ccid_dev_table[idx].ifcdesc_extra = NULL;
+ ccid_dev_table[idx].ifcdesc_extra_len = 0;
+ ccid_dev_table[idx].ep_bulk_out = 0;
+ ccid_dev_table[idx].ep_bulk_in = 0;
+ ccid_dev_table[idx].ep_intr = 0;
+ }
+ libusb_free_device_list (ccid_usb_dev_list, 1);
+ ccid_usb_dev_list = NULL;
+ }
+ else
{
- if (readerno == -1)
- DEBUGOUT_1 ("no CCID reader with ID %s\n", readerid );
+ *idx_max_p = idx;
+ if (idx)
+ *t_p = ccid_dev_table;
else
- DEBUGOUT_1 ("no CCID reader with number %d\n", readerno );
- rc = CCID_DRIVER_ERR_NO_READER;
- goto leave;
+ *t_p = NULL;
}
- /* Okay, this is a CCID reader. */
- *handle = calloc (1, sizeof **handle);
- if (!*handle)
+ return err;
+}
+
+void
+ccid_dev_scan_finish (struct ccid_dev_table *tbl, int max)
+{
+ int i;
+
+ for (i = 0; i < max; i++)
{
- DEBUGOUT ("out of memory\n");
- rc = CCID_DRIVER_ERR_OUT_OF_CORE;
- goto leave;
+ free (tbl[i].ifcdesc_extra);
+ tbl[i].transport = 0;
+ tbl[i].n = 0;
+ tbl[i].interface_number = 0;
+ tbl[i].setting_number = 0;
+ tbl[i].ifcdesc_extra = NULL;
+ tbl[i].ifcdesc_extra_len = 0;
+ tbl[i].ep_bulk_out = 0;
+ tbl[i].ep_bulk_in = 0;
+ tbl[i].ep_intr = 0;
}
- (*handle)->rid = rid;
- if (idev) /* Regular USB transport. */
+ libusb_free_device_list (ccid_usb_dev_list, 1);
+ ccid_usb_dev_list = NULL;
+}
+
+unsigned int
+ccid_get_BAI (int idx, struct ccid_dev_table *tbl)
+{
+ int n;
+ int bus, addr, intf;
+ unsigned int bai;
+
+ if (tbl[idx].transport == TRANSPORT_USB)
{
- (*handle)->idev = idev;
- (*handle)->dev_fd = -1;
- (*handle)->id_vendor = desc.idVendor;
- (*handle)->id_product = desc.idProduct;
- (*handle)->bcd_device = desc.bcdDevice;
- (*handle)->ifc_no = ifc_no;
- (*handle)->ep_bulk_out = ep_bulk_out;
- (*handle)->ep_bulk_in = ep_bulk_in;
- (*handle)->ep_intr = ep_intr;
+ libusb_device *dev;
+
+ n = tbl[idx].n;
+ dev = ccid_usb_dev_list[n];
+
+ bus = libusb_get_bus_number (dev);
+ addr = libusb_get_device_address (dev);
+ intf = tbl[idx].interface_number;
+ bai = (bus << 16) | (addr << 8) | intf;
}
- else if (dev_fd != -1) /* Device transport. */
+ else
{
- (*handle)->idev = NULL;
- (*handle)->dev_fd = dev_fd;
- (*handle)->id_vendor = 0; /* Magic vendor for special transport. */
- (*handle)->id_product = ifc_no; /* Transport type */
- prepare_special_transport (*handle);
+ n = tbl[idx].n;
+ bai = 0xFFFF0000 | n;
}
- else
+
+ return bai;
+}
+
+int
+ccid_compare_BAI (ccid_driver_t handle, unsigned int bai)
+{
+ return handle->bai == bai;
+}
+
+static int
+ccid_open_usb_reader (const char *spec_reader_name,
+ int idx, struct ccid_dev_table *ccid_table,
+ ccid_driver_t *handle, char **rdrname_p)
+{
+ libusb_device *dev;
+ libusb_device_handle *idev = NULL;
+ char *rid;
+ int rc = 0;
+ int ifc_no, set_no;
+ struct libusb_device_descriptor desc;
+ int n;
+ int bus, addr;
+ unsigned int bai;
+
+ n = ccid_table[idx].n;
+ ifc_no = ccid_table[idx].interface_number;
+ set_no = ccid_table[idx].setting_number;
+
+ dev = ccid_usb_dev_list[n];
+ bus = libusb_get_bus_number (dev);
+ addr = libusb_get_device_address (dev);
+ bai = (bus << 16) | (addr << 8) | ifc_no;
+
+ rc = libusb_open (dev, &idev);
+ if (rc)
{
- assert (!"no transport"); /* Bug. */
+ DEBUGOUT_1 ("usb_open failed: %s\n", libusb_error_name (rc));
+ free (*handle);
+ *handle = NULL;
+ return rc;
}
- DEBUGOUT_2 ("using CCID reader %d (ID=%s)\n", readerno, rid );
+ rc = libusb_get_device_descriptor (dev, &desc);
+ if (rc)
+ {
+ libusb_close (idev);
+ free (*handle);
+ *handle = NULL;
+ return rc;
+ }
- if (idev)
+ rid = make_reader_id (idev, desc.idVendor, desc.idProduct,
+ desc.iSerialNumber);
+
+ /* Check to see if reader name matches the spec. */
+ if (spec_reader_name
+ && strncmp (rid, spec_reader_name, strlen (spec_reader_name)))
{
- if (parse_ccid_descriptor (*handle, ifcdesc_extra, ifcdesc_extra_len))
- {
- DEBUGOUT ("device not supported\n");
- rc = CCID_DRIVER_ERR_NO_READER;
- goto leave;
- }
+ DEBUGOUT ("device not matched\n");
+ rc = CCID_DRIVER_ERR_NO_READER;
+ goto leave;
+ }
- rc = libusb_claim_interface (idev, ifc_no);
+ (*handle)->id_vendor = desc.idVendor;
+ (*handle)->id_product = desc.idProduct;
+ (*handle)->idev = idev;
+ (*handle)->dev_fd = -1;
+ (*handle)->bai = bai;
+ (*handle)->ifc_no = ifc_no;
+ (*handle)->ep_bulk_out = ccid_table[idx].ep_bulk_out;
+ (*handle)->ep_bulk_in = ccid_table[idx].ep_bulk_in;
+ (*handle)->ep_intr = ccid_table[idx].ep_intr;
+
+ DEBUGOUT_2 ("using CCID reader %d (ID=%s)\n", idx, rid);
+
+ if (parse_ccid_descriptor (*handle, desc.bcdDevice,
+ ccid_table[idx].ifcdesc_extra,
+ ccid_table[idx].ifcdesc_extra_len))
+ {
+ DEBUGOUT ("device not supported\n");
+ rc = CCID_DRIVER_ERR_NO_READER;
+ goto leave;
+ }
+
+ rc = libusb_claim_interface (idev, ifc_no);
+ if (rc)
+ {
+ DEBUGOUT_1 ("usb_claim_interface failed: %d\n", rc);
+ rc = CCID_DRIVER_ERR_CARD_IO_ERROR;
+ goto leave;
+ }
+
+ if (set_no != 0)
+ {
+ rc = libusb_set_interface_alt_setting (idev, ifc_no, set_no);
if (rc)
{
- DEBUGOUT_1 ("usb_claim_interface failed: %d\n", rc);
+ DEBUGOUT_1 ("usb_set_interface_alt_setting failed: %d\n", rc);
rc = CCID_DRIVER_ERR_CARD_IO_ERROR;
goto leave;
}
-
- if (set_no != 0)
- {
- rc = libusb_set_interface_alt_setting (idev, ifc_no, set_no);
- if (rc)
- {
- DEBUGOUT_1 ("usb_set_interface_alt_setting failed: %d\n", rc);
- rc = CCID_DRIVER_ERR_CARD_IO_ERROR;
- goto leave;
- }
- }
}
rc = ccid_vendor_specific_init (*handle);
leave:
- free (ifcdesc_extra);
if (rc)
{
free (rid);
- if (idev)
- libusb_close (idev);
- if (dev_fd != -1)
- close (dev_fd);
+ libusb_close (idev);
free (*handle);
*handle = NULL;
}
else
- if (rdrname_p)
- *rdrname_p = (*handle)->rid;
+ {
+ if (rdrname_p)
+ *rdrname_p = rid;
+ else
+ free (rid);
+ }
return rc;
}
+/* Open the reader with the internal number READERNO and return a
+ pointer to be used as handle in HANDLE. Returns 0 on success. */
+int
+ccid_open_reader (const char *spec_reader_name,
+ int idx, struct ccid_dev_table *ccid_table,
+ ccid_driver_t *handle, char **rdrname_p)
+{
+ int n;
+ int fd;
+ char *rid;
+
+ *handle = calloc (1, sizeof **handle);
+ if (!*handle)
+ {
+ DEBUGOUT ("out of memory\n");
+ return CCID_DRIVER_ERR_OUT_OF_CORE;
+ }
+
+ if (ccid_table[idx].transport == TRANSPORT_USB)
+ return ccid_open_usb_reader (spec_reader_name, idx, ccid_table,
+ handle, rdrname_p);
+
+ /* Special transport support. */
+
+ n = ccid_table[idx].n;
+ fd = open (transports[n].name, O_RDWR);
+ if (fd < 0)
+ {
+ DEBUGOUT_2 ("failed to open '%s': %s\n",
+ transports[n].name, strerror (errno));
+ free (*handle);
+ *handle = NULL;
+ return -1;
+ }
+
+ rid = malloc (strlen (transports[n].name) + 30 + 10);
+ if (!rid)
+ {
+ close (fd);
+ free (*handle);
+ *handle = NULL;
+ return -1; /* Error. */
+ }
+
+ sprintf (rid, "0000:%04X:%s:0", transports[n].type, transports[n].name);
+
+ /* Check to see if reader name matches the spec. */
+ if (spec_reader_name
+ && strncmp (rid, spec_reader_name, strlen (spec_reader_name)))
+ {
+ DEBUGOUT ("device not matched\n");
+ free (rid);
+ close (fd);
+ free (*handle);
+ *handle = NULL;
+ return -1;
+ }
+
+ (*handle)->id_vendor = 0;
+ (*handle)->id_product = transports[n].type;
+ (*handle)->idev = NULL;
+ (*handle)->dev_fd = fd;
+ (*handle)->bai = 0xFFFF0000 | n;
+ prepare_special_transport (*handle);
+ if (rdrname_p)
+ *rdrname_p = rid;
+ else
+ free (rid);
+
+ return 0;
+}
+
static void
do_close_reader (ccid_driver_t handle)
{
int rc;
unsigned char msg[100];
size_t msglen;
unsigned char seqno;
if (!handle->powered_off)
{
msg[0] = PC_to_RDR_IccPowerOff;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0; /* RFU */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
set_msg_len (msg, 0);
msglen = 10;
rc = bulk_out (handle, msg, msglen, 0);
if (!rc)
bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_SlotStatus,
seqno, 2000, 0);
handle->powered_off = 1;
}
if (handle->idev)
{
libusb_release_interface (handle->idev, handle->ifc_no);
libusb_close (handle->idev);
handle->idev = NULL;
}
if (handle->dev_fd != -1)
{
close (handle->dev_fd);
handle->dev_fd = -1;
}
}
int
ccid_set_progress_cb (ccid_driver_t handle,
void (*cb)(void *, const char *, int, int, int),
void *cb_arg)
{
- if (!handle || !handle->rid)
+ if (!handle)
return CCID_DRIVER_ERR_INV_VALUE;
handle->progress_cb = cb;
handle->progress_cb_arg = cb_arg;
return 0;
}
/* Close the reader HANDLE. */
int
ccid_close_reader (ccid_driver_t handle)
{
if (!handle || (!handle->idev && handle->dev_fd == -1))
return 0;
do_close_reader (handle);
- free (handle->rid);
free (handle);
return 0;
}
/* Return False if a card is present and powered. */
int
ccid_check_card_presence (ccid_driver_t handle)
{
(void)handle; /* Not yet implemented. */
return -1;
}
/* Write NBYTES of BUF to file descriptor FD. */
static int
writen (int fd, const void *buf, size_t nbytes)
{
size_t nleft = nbytes;
int nwritten;
while (nleft > 0)
{
nwritten = write (fd, buf, nleft);
if (nwritten < 0)
{
if (errno == EINTR)
nwritten = 0;
else
return -1;
}
nleft -= nwritten;
buf = (const char*)buf + nwritten;
}
return 0;
}
/* Write a MSG of length MSGLEN to the designated bulk out endpoint.
Returns 0 on success. */
static int
bulk_out (ccid_driver_t handle, unsigned char *msg, size_t msglen,
int no_debug)
{
int rc;
/* No need to continue and clutter the log with USB write error
messages after we got the first ENODEV. */
if (handle->enodev_seen)
return CCID_DRIVER_ERR_NO_READER;
if (debug_level && (!no_debug || debug_level >= 3))
{
switch (msglen? msg[0]:0)
{
case PC_to_RDR_IccPowerOn:
print_p2r_iccpoweron (msg, msglen);
break;
case PC_to_RDR_IccPowerOff:
print_p2r_iccpoweroff (msg, msglen);
break;
case PC_to_RDR_GetSlotStatus:
print_p2r_getslotstatus (msg, msglen);
break;
case PC_to_RDR_XfrBlock:
print_p2r_xfrblock (msg, msglen);
break;
case PC_to_RDR_GetParameters:
print_p2r_getparameters (msg, msglen);
break;
case PC_to_RDR_ResetParameters:
print_p2r_resetparameters (msg, msglen);
break;
case PC_to_RDR_SetParameters:
print_p2r_setparameters (msg, msglen);
break;
case PC_to_RDR_Escape:
print_p2r_escape (msg, msglen);
break;
case PC_to_RDR_IccClock:
print_p2r_iccclock (msg, msglen);
break;
case PC_to_RDR_T0APDU:
print_p2r_to0apdu (msg, msglen);
break;
case PC_to_RDR_Secure:
print_p2r_secure (msg, msglen);
break;
case PC_to_RDR_Mechanical:
print_p2r_mechanical (msg, msglen);
break;
case PC_to_RDR_Abort:
print_p2r_abort (msg, msglen);
break;
case PC_to_RDR_SetDataRate:
print_p2r_setdatarate (msg, msglen);
break;
default:
print_p2r_unknown (msg, msglen);
break;
}
}
if (handle->idev)
{
int transferred;
rc = libusb_bulk_transfer (handle->idev, handle->ep_bulk_out,
(char*)msg, msglen, &transferred,
5000 /* ms timeout */);
if (rc == 0 && transferred == msglen)
return 0;
if (rc)
{
DEBUGOUT_1 ("usb_bulk_write error: %s\n", libusb_error_name (rc));
if (rc == LIBUSB_ERROR_NO_DEVICE)
{
handle->enodev_seen = 1;
return CCID_DRIVER_ERR_NO_READER;
}
}
}
else
{
rc = writen (handle->dev_fd, msg, msglen);
if (!rc)
return 0;
DEBUGOUT_2 ("writen to %d failed: %s\n",
handle->dev_fd, strerror (errno));
}
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
/* Read a maximum of LENGTH bytes from the bulk in endpoint into
BUFFER and return the actual read number if bytes in NREAD. SEQNO
is the sequence number used to send the request and EXPECTED_TYPE
the type of message we expect. Does checks on the ccid
header. TIMEOUT is the timeout value in ms. NO_DEBUG may be set to
avoid debug messages in case of no error; this can be overriden
with a glibal debug level of at least 3. Returns 0 on success. */
static int
bulk_in (ccid_driver_t handle, unsigned char *buffer, size_t length,
size_t *nread, int expected_type, int seqno, int timeout,
int no_debug)
{
int rc;
int msglen;
int eagain_retries = 0;
/* Fixme: The next line for the current Valgrind without support
for USB IOCTLs. */
memset (buffer, 0, length);
retry:
if (handle->idev)
{
rc = libusb_bulk_transfer (handle->idev, handle->ep_bulk_in,
(char*)buffer, length, &msglen, timeout);
if (rc)
{
DEBUGOUT_1 ("usb_bulk_read error: %s\n", libusb_error_name (rc));
if (rc == LIBUSB_ERROR_NO_DEVICE)
{
handle->enodev_seen = 1;
return CCID_DRIVER_ERR_NO_READER;
}
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
if (msglen < 0)
return CCID_DRIVER_ERR_INV_VALUE; /* Faulty libusb. */
*nread = msglen;
}
else
{
rc = read (handle->dev_fd, buffer, length);
if (rc < 0)
{
rc = errno;
DEBUGOUT_2 ("read from %d failed: %s\n",
handle->dev_fd, strerror (rc));
if (rc == EAGAIN && eagain_retries++ < 5)
{
my_sleep (1);
goto retry;
}
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
*nread = msglen = rc;
}
eagain_retries = 0;
if (msglen < 10)
{
DEBUGOUT_1 ("bulk-in msg too short (%u)\n", (unsigned int)msglen);
abort_cmd (handle, seqno);
return CCID_DRIVER_ERR_INV_VALUE;
}
if (buffer[5] != 0)
{
DEBUGOUT_1 ("unexpected bulk-in slot (%d)\n", buffer[5]);
return CCID_DRIVER_ERR_INV_VALUE;
}
if (buffer[6] != seqno)
{
DEBUGOUT_2 ("bulk-in seqno does not match (%d/%d)\n",
seqno, buffer[6]);
/* Retry until we are synced again. */
goto retry;
}
/* We need to handle the time extension request before we check that
we got the expected message type. This is in particular required
for the Cherry keyboard which sends a time extension request for
each key hit. */
if ( !(buffer[7] & 0x03) && (buffer[7] & 0xC0) == 0x80)
{
/* Card present and active, time extension requested. */
DEBUGOUT_2 ("time extension requested (%02X,%02X)\n",
buffer[7], buffer[8]);
goto retry;
}
if (buffer[0] != expected_type)
{
DEBUGOUT_1 ("unexpected bulk-in msg type (%02x)\n", buffer[0]);
abort_cmd (handle, seqno);
return CCID_DRIVER_ERR_INV_VALUE;
}
if (debug_level && (!no_debug || debug_level >= 3))
{
switch (buffer[0])
{
case RDR_to_PC_DataBlock:
print_r2p_datablock (buffer, msglen);
break;
case RDR_to_PC_SlotStatus:
print_r2p_slotstatus (buffer, msglen);
break;
case RDR_to_PC_Parameters:
print_r2p_parameters (buffer, msglen);
break;
case RDR_to_PC_Escape:
print_r2p_escape (buffer, msglen);
break;
case RDR_to_PC_DataRate:
print_r2p_datarate (buffer, msglen);
break;
default:
print_r2p_unknown (buffer, msglen);
break;
}
}
if (CCID_COMMAND_FAILED (buffer))
print_command_failed (buffer);
/* Check whether a card is at all available. Note: If you add new
error codes here, check whether they need to be ignored in
send_escape_cmd. */
switch ((buffer[7] & 0x03))
{
case 0: /* no error */ break;
case 1: return CCID_DRIVER_ERR_CARD_INACTIVE;
case 2: return CCID_DRIVER_ERR_NO_CARD;
case 3: /* RFU */ break;
}
return 0;
}
/* Send an abort sequence and wait until everything settled. */
static int
abort_cmd (ccid_driver_t handle, int seqno)
{
int rc;
char dummybuf[8];
unsigned char msg[100];
int msglen;
if (!handle->idev)
{
/* I don't know how to send an abort to non-USB devices. */
rc = CCID_DRIVER_ERR_NOT_SUPPORTED;
}
seqno &= 0xff;
DEBUGOUT_1 ("sending abort sequence for seqno %d\n", seqno);
/* Send the abort command to the control pipe. Note that we don't
need to keep track of sent abort commands because there should
never be another thread using the same slot concurrently. */
rc = libusb_control_transfer (handle->idev,
0x21,/* bmRequestType: host-to-device,
class specific, to interface. */
1, /* ABORT */
(seqno << 8 | 0 /* slot */),
handle->ifc_no,
dummybuf, 0,
1000 /* ms timeout */);
if (rc)
{
DEBUGOUT_1 ("usb_control_msg error: %s\n", libusb_error_name (rc));
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
/* Now send the abort command to the bulk out pipe using the same
SEQNO and SLOT. Do this in a loop to so that all seqno are
tried. */
seqno--; /* Adjust for next increment. */
do
{
int transferred;
seqno++;
msg[0] = PC_to_RDR_Abort;
msg[5] = 0; /* slot */
msg[6] = seqno;
msg[7] = 0; /* RFU */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
msglen = 10;
set_msg_len (msg, 0);
rc = libusb_bulk_transfer (handle->idev, handle->ep_bulk_out,
(char*)msg, msglen, &transferred,
5000 /* ms timeout */);
if (rc == 0 && transferred == msglen)
rc = 0;
else if (rc)
DEBUGOUT_1 ("usb_bulk_write error in abort_cmd: %s\n",
libusb_error_name (rc));
if (rc)
return rc;
rc = libusb_bulk_transfer (handle->idev, handle->ep_bulk_in,
(char*)msg, sizeof msg, &msglen,
5000 /*ms timeout*/);
if (rc)
{
DEBUGOUT_1 ("usb_bulk_read error in abort_cmd: %s\n",
libusb_error_name (rc));
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
if (msglen < 10)
{
DEBUGOUT_1 ("bulk-in msg in abort_cmd too short (%u)\n",
(unsigned int)msglen);
return CCID_DRIVER_ERR_INV_VALUE;
}
if (msg[5] != 0)
{
DEBUGOUT_1 ("unexpected bulk-in slot (%d) in abort_cmd\n", msg[5]);
return CCID_DRIVER_ERR_INV_VALUE;
}
DEBUGOUT_3 ("status: %02X error: %02X octet[9]: %02X\n",
msg[7], msg[8], msg[9]);
if (CCID_COMMAND_FAILED (msg))
print_command_failed (msg);
}
while (msg[0] != RDR_to_PC_SlotStatus && msg[5] != 0 && msg[6] != seqno);
handle->seqno = ((seqno + 1) & 0xff);
DEBUGOUT ("sending abort sequence succeeded\n");
return 0;
}
/* Note that this function won't return the error codes NO_CARD or
CARD_INACTIVE. IF RESULT is not NULL, the result from the
operation will get returned in RESULT and its length in RESULTLEN.
If the response is larger than RESULTMAX, an error is returned and
the required buffer length returned in RESULTLEN. */
static int
send_escape_cmd (ccid_driver_t handle,
const unsigned char *data, size_t datalen,
unsigned char *result, size_t resultmax, size_t *resultlen)
{
int rc;
unsigned char msg[100];
size_t msglen;
unsigned char seqno;
if (resultlen)
*resultlen = 0;
if (datalen > sizeof msg - 10)
return CCID_DRIVER_ERR_INV_VALUE; /* Escape data too large. */
msg[0] = PC_to_RDR_Escape;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0; /* RFU */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
memcpy (msg+10, data, datalen);
msglen = 10 + datalen;
set_msg_len (msg, datalen);
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_Escape,
seqno, 5000, 0);
if (result)
switch (rc)
{
/* We need to ignore certain errorcode here. */
case 0:
case CCID_DRIVER_ERR_CARD_INACTIVE:
case CCID_DRIVER_ERR_NO_CARD:
{
if (msglen > resultmax)
rc = CCID_DRIVER_ERR_INV_VALUE; /* Response too large. */
else
{
memcpy (result, msg, msglen);
*resultlen = msglen;
rc = 0;
}
}
break;
default:
break;
}
return rc;
}
int
ccid_transceive_escape (ccid_driver_t handle,
const unsigned char *data, size_t datalen,
unsigned char *resp, size_t maxresplen, size_t *nresp)
{
return send_escape_cmd (handle, data, datalen, resp, maxresplen, nresp);
}
/* experimental */
int
ccid_poll (ccid_driver_t handle)
{
int rc;
unsigned char msg[10];
int msglen;
int i, j;
if (handle->idev)
{
rc = libusb_bulk_transfer (handle->idev, handle->ep_intr,
(char*)msg, sizeof msg, &msglen,
0 /* ms timeout */ );
if (rc == LIBUSB_ERROR_TIMEOUT)
return 0;
}
else
return 0;
if (rc)
{
DEBUGOUT_1 ("usb_intr_read error: %s\n", libusb_error_name (rc));
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
if (msglen < 1)
{
DEBUGOUT ("intr-in msg too short\n");
return CCID_DRIVER_ERR_INV_VALUE;
}
if (msg[0] == RDR_to_PC_NotifySlotChange)
{
DEBUGOUT ("notify slot change:");
for (i=1; i < msglen; i++)
for (j=0; j < 4; j++)
DEBUGOUT_CONT_3 (" %d:%c%c",
(i-1)*4+j,
(msg[i] & (1<<(j*2)))? 'p':'-',
(msg[i] & (2<<(j*2)))? '*':' ');
DEBUGOUT_LF ();
}
else if (msg[0] == RDR_to_PC_HardwareError)
{
DEBUGOUT ("hardware error occurred\n");
}
else
{
DEBUGOUT_1 ("unknown intr-in msg of type %02X\n", msg[0]);
}
return 0;
}
/* Note that this function won't return the error codes NO_CARD or
CARD_INACTIVE */
int
ccid_slot_status (ccid_driver_t handle, int *statusbits)
{
int rc;
unsigned char msg[100];
size_t msglen;
unsigned char seqno;
int retries = 0;
retry:
msg[0] = PC_to_RDR_GetSlotStatus;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0; /* RFU */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
set_msg_len (msg, 0);
rc = bulk_out (handle, msg, 10, 1);
if (rc)
return rc;
/* Note that we set the NO_DEBUG flag here, so that the logs won't
get cluttered up by a ticker function checking for the slot
status and debugging enabled. */
rc = bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_SlotStatus,
seqno, retries? 1000 : 200, 1);
if (rc == CCID_DRIVER_ERR_CARD_IO_ERROR && retries < 3)
{
if (!retries)
{
DEBUGOUT ("USB: CALLING USB_CLEAR_HALT\n");
libusb_clear_halt (handle->idev, handle->ep_bulk_in);
libusb_clear_halt (handle->idev, handle->ep_bulk_out);
}
else
DEBUGOUT ("USB: RETRYING bulk_in AGAIN\n");
retries++;
goto retry;
}
if (rc && rc != CCID_DRIVER_ERR_NO_CARD
&& rc != CCID_DRIVER_ERR_CARD_INACTIVE)
return rc;
*statusbits = (msg[7] & 3);
return 0;
}
/* Parse ATR string (of ATRLEN) and update parameters at PARAM.
Calling this routine, it should prepare default values at PARAM
beforehand. This routine assumes that card is accessed by T=1
protocol. It doesn't analyze historical bytes at all.
Returns < 0 value on error:
-1 for parse error or integrity check error
-2 for card doesn't support T=1 protocol
-3 for parameters are nod explicitly defined by ATR
-4 for this driver doesn't support CRC
Returns >= 0 on success:
0 for card is negotiable mode
1 for card is specific mode (and not negotiable)
*/
static int
update_param_by_atr (unsigned char *param, unsigned char *atr, size_t atrlen)
{
int i = -1;
int t, y, chk;
int historical_bytes_num, negotiable = 1;
#define NEXTBYTE() do { i++; if (atrlen <= i) return -1; } while (0)
NEXTBYTE ();
if (atr[i] == 0x3F)
param[1] |= 0x02; /* Convention is inverse. */
NEXTBYTE ();
y = (atr[i] >> 4);
historical_bytes_num = atr[i] & 0x0f;
NEXTBYTE ();
if ((y & 1))
{
param[0] = atr[i]; /* TA1 - Fi & Di */
NEXTBYTE ();
}
if ((y & 2))
NEXTBYTE (); /* TB1 - ignore */
if ((y & 4))
{
param[2] = atr[i]; /* TC1 - Guard Time */
NEXTBYTE ();
}
if ((y & 8))
{
y = (atr[i] >> 4); /* TD1 */
t = atr[i] & 0x0f;
NEXTBYTE ();
if ((y & 1))
{ /* TA2 - PPS mode */
if ((atr[i] & 0x0f) != 1)
return -2; /* Wrong card protocol (!= 1). */
if ((atr[i] & 0x10) != 0x10)
return -3; /* Transmission parameters are implicitly defined. */
negotiable = 0; /* TA2 means specific mode. */
NEXTBYTE ();
}
if ((y & 2))
NEXTBYTE (); /* TB2 - ignore */
if ((y & 4))
NEXTBYTE (); /* TC2 - ignore */
if ((y & 8))
{
y = (atr[i] >> 4); /* TD2 */
t = atr[i] & 0x0f;
NEXTBYTE ();
}
else
y = 0;
while (y)
{
if ((y & 1))
{ /* TAx */
if (t == 1)
param[5] = atr[i]; /* IFSC */
else if (t == 15)
/* XXX: check voltage? */
param[4] = (atr[i] >> 6); /* ClockStop */
NEXTBYTE ();
}
if ((y & 2))
{
if (t == 1)
param[3] = atr[i]; /* TBx - BWI & CWI */
NEXTBYTE ();
}
if ((y & 4))
{
if (t == 1)
param[1] |= (atr[i] & 0x01); /* TCx - LRC/CRC */
NEXTBYTE ();
if (param[1] & 0x01)
return -4; /* CRC not supported yet. */
}
if ((y & 8))
{
y = (atr[i] >> 4); /* TDx */
t = atr[i] & 0x0f;
NEXTBYTE ();
}
else
y = 0;
}
}
i += historical_bytes_num - 1;
NEXTBYTE ();
if (atrlen != i+1)
return -1;
#undef NEXTBYTE
chk = 0;
do
{
chk ^= atr[i];
i--;
}
while (i > 0);
if (chk != 0)
return -1;
return negotiable;
}
/* Return the ATR of the card. This is not a cached value and thus an
actual reset is done. */
int
ccid_get_atr (ccid_driver_t handle,
unsigned char *atr, size_t maxatrlen, size_t *atrlen)
{
int rc;
int statusbits;
unsigned char msg[100];
unsigned char *tpdu;
size_t msglen, tpdulen;
unsigned char seqno;
int use_crc = 0;
unsigned int edc;
int tried_iso = 0;
int got_param;
unsigned char param[7] = { /* For Protocol T=1 */
0x11, /* bmFindexDindex */
0x10, /* bmTCCKST1 */
0x00, /* bGuardTimeT1 */
0x4d, /* bmWaitingIntegersT1 */
0x00, /* bClockStop */
0x20, /* bIFSC */
0x00 /* bNadValue */
};
/* First check whether a card is available. */
rc = ccid_slot_status (handle, &statusbits);
if (rc)
return rc;
if (statusbits == 2)
return CCID_DRIVER_ERR_NO_CARD;
/* For an inactive and also for an active card, issue the PowerOn
command to get the ATR. */
again:
msg[0] = PC_to_RDR_IccPowerOn;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
/* power select (0=auto, 1=5V, 2=3V, 3=1.8V) */
msg[7] = handle->auto_voltage ? 0 : 1;
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
set_msg_len (msg, 0);
msglen = 10;
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_DataBlock,
seqno, 5000, 0);
if (rc)
return rc;
if (!tried_iso && CCID_COMMAND_FAILED (msg) && CCID_ERROR_CODE (msg) == 0xbb
&& ((handle->id_vendor == VENDOR_CHERRY
&& handle->id_product == 0x0005)
|| (handle->id_vendor == VENDOR_GEMPC
&& handle->id_product == 0x4433)
))
{
tried_iso = 1;
/* Try switching to ISO mode. */
if (!send_escape_cmd (handle, (const unsigned char*)"\xF1\x01", 2,
NULL, 0, NULL))
goto again;
}
else if (CCID_COMMAND_FAILED (msg))
return CCID_DRIVER_ERR_CARD_IO_ERROR;
handle->powered_off = 0;
if (atr)
{
size_t n = msglen - 10;
if (n > maxatrlen)
n = maxatrlen;
memcpy (atr, msg+10, n);
*atrlen = n;
}
param[6] = handle->nonnull_nad? ((1 << 4) | 0): 0;
rc = update_param_by_atr (param, msg+10, msglen - 10);
if (rc < 0)
{
DEBUGOUT_1 ("update_param_by_atr failed: %d\n", rc);
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
got_param = 0;
if (handle->auto_param)
{
msg[0] = PC_to_RDR_GetParameters;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0; /* RFU */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
set_msg_len (msg, 0);
msglen = 10;
rc = bulk_out (handle, msg, msglen, 0);
if (!rc)
rc = bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_Parameters,
seqno, 2000, 0);
if (rc)
DEBUGOUT ("GetParameters failed\n");
else if (msglen == 17 && msg[9] == 1)
got_param = 1;
}
else if (handle->auto_pps)
;
else if (rc == 1) /* It's negotiable, send PPS. */
{
msg[0] = PC_to_RDR_XfrBlock;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0;
msg[8] = 0;
msg[9] = 0;
msg[10] = 0xff; /* PPSS */
msg[11] = 0x11; /* PPS0: PPS1, Protocol T=1 */
msg[12] = param[0]; /* PPS1: Fi / Di */
msg[13] = 0xff ^ 0x11 ^ param[0]; /* PCK */
set_msg_len (msg, 4);
msglen = 10 + 4;
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_DataBlock,
seqno, 5000, 0);
if (rc)
return rc;
if (msglen != 10 + 4)
{
DEBUGOUT_1 ("Setting PPS failed: %zu\n", msglen);
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
if (msg[10] != 0xff || msg[11] != 0x11 || msg[12] != param[0])
{
DEBUGOUT_1 ("Setting PPS failed: 0x%02x\n", param[0]);
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
}
/* Setup parameters to select T=1. */
msg[0] = PC_to_RDR_SetParameters;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 1; /* Select T=1. */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
if (!got_param)
memcpy (&msg[10], param, 7);
set_msg_len (msg, 7);
msglen = 10 + 7;
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof msg, &msglen, RDR_to_PC_Parameters,
seqno, 5000, 0);
if (rc)
DEBUGOUT ("SetParameters failed (ignored)\n");
if (!rc && msglen > 15 && msg[15] >= 16 && msg[15] <= 254 )
handle->ifsc = msg[15];
else
handle->ifsc = 128; /* Something went wrong, assume 128 bytes. */
if (handle->nonnull_nad && msglen > 16 && msg[16] == 0)
{
DEBUGOUT ("Use Null-NAD, clearing handle->nonnull_nad.\n");
handle->nonnull_nad = 0;
}
handle->t1_ns = 0;
handle->t1_nr = 0;
/* Send an S-Block with our maximum IFSD to the CCID. */
if (!handle->apdu_level && !handle->auto_ifsd)
{
tpdu = msg+10;
/* NAD: DAD=1, SAD=0 */
tpdu[0] = handle->nonnull_nad? ((1 << 4) | 0): 0;
tpdu[1] = (0xc0 | 0 | 1); /* S-block request: change IFSD */
tpdu[2] = 1;
tpdu[3] = handle->max_ifsd? handle->max_ifsd : 32;
tpdulen = 4;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
msg[0] = PC_to_RDR_XfrBlock;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0;
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
set_msg_len (msg, tpdulen);
msglen = 10 + tpdulen;
if (debug_level > 1)
DEBUGOUT_3 ("T=1: put %c-block seq=%d%s\n",
((msg[11] & 0xc0) == 0x80)? 'R' :
(msg[11] & 0x80)? 'S' : 'I',
((msg[11] & 0x80)? !!(msg[11]& 0x10)
: !!(msg[11] & 0x40)),
(!(msg[11] & 0x80) && (msg[11] & 0x20)? " [more]":""));
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof msg, &msglen,
RDR_to_PC_DataBlock, seqno, 5000, 0);
if (rc)
return rc;
tpdu = msg + 10;
tpdulen = msglen - 10;
if (tpdulen < 4)
return CCID_DRIVER_ERR_ABORTED;
if (debug_level > 1)
DEBUGOUT_4 ("T=1: got %c-block seq=%d err=%d%s\n",
((msg[11] & 0xc0) == 0x80)? 'R' :
(msg[11] & 0x80)? 'S' : 'I',
((msg[11] & 0x80)? !!(msg[11]& 0x10)
: !!(msg[11] & 0x40)),
((msg[11] & 0xc0) == 0x80)? (msg[11] & 0x0f) : 0,
(!(msg[11] & 0x80) && (msg[11] & 0x20)? " [more]":""));
if ((tpdu[1] & 0xe0) != 0xe0 || tpdu[2] != 1)
{
DEBUGOUT ("invalid response for S-block (Change-IFSD)\n");
return -1;
}
DEBUGOUT_1 ("IFSD has been set to %d\n", tpdu[3]);
}
return 0;
}
static unsigned int
compute_edc (const unsigned char *data, size_t datalen, int use_crc)
{
if (use_crc)
{
return 0x42; /* Not yet implemented. */
}
else
{
unsigned char crc = 0;
for (; datalen; datalen--)
crc ^= *data++;
return crc;
}
}
/* Return true if APDU is an extended length one. */
static int
is_exlen_apdu (const unsigned char *apdu, size_t apdulen)
{
if (apdulen < 7 || apdu[4])
return 0; /* Too short or no Z byte. */
return 1;
}
/* Helper for ccid_transceive used for APDU level exchanges. */
static int
ccid_transceive_apdu_level (ccid_driver_t handle,
const unsigned char *apdu_buf, size_t apdu_len,
unsigned char *resp, size_t maxresplen,
size_t *nresp)
{
int rc;
unsigned char msg[CCID_MAX_BUF];
const unsigned char *apdu_p;
size_t apdu_part_len;
size_t msglen;
unsigned char seqno;
int bwi = 4;
unsigned char chain = 0;
if (apdu_len == 0 || apdu_len > sizeof (msg) - 10)
return CCID_DRIVER_ERR_INV_VALUE; /* Invalid length. */
apdu_p = apdu_buf;
while (1)
{
apdu_part_len = apdu_len;
if (apdu_part_len > handle->max_ccid_msglen - 10)
{
apdu_part_len = handle->max_ccid_msglen - 10;
chain |= 0x01;
}
msg[0] = PC_to_RDR_XfrBlock;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = bwi;
msg[8] = chain;
msg[9] = 0;
memcpy (msg+10, apdu_p, apdu_part_len);
set_msg_len (msg, apdu_part_len);
msglen = 10 + apdu_part_len;
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
apdu_p += apdu_part_len;
apdu_len -= apdu_part_len;
rc = bulk_in (handle, msg, sizeof msg, &msglen,
RDR_to_PC_DataBlock, seqno, CCID_CMD_TIMEOUT, 0);
if (rc)
return rc;
if (!(chain & 0x01))
break;
chain = 0x02;
}
apdu_len = 0;
while (1)
{
apdu_part_len = msglen - 10;
if (resp && apdu_len + apdu_part_len <= maxresplen)
memcpy (resp + apdu_len, msg+10, apdu_part_len);
apdu_len += apdu_part_len;
if (!(msg[9] & 0x01))
break;
msg[0] = PC_to_RDR_XfrBlock;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = bwi;
msg[8] = 0x10; /* Request next data block */
msg[9] = 0;
set_msg_len (msg, 0);
msglen = 10;
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
rc = bulk_in (handle, msg, sizeof msg, &msglen,
RDR_to_PC_DataBlock, seqno, CCID_CMD_TIMEOUT, 0);
if (rc)
return rc;
}
if (resp)
{
if (apdu_len > maxresplen)
{
DEBUGOUT_2 ("provided buffer too short for received data "
"(%u/%u)\n",
(unsigned int)apdu_len, (unsigned int)maxresplen);
return CCID_DRIVER_ERR_INV_VALUE;
}
*nresp = apdu_len;
}
return 0;
}
/*
Protocol T=1 overview
Block Structure:
Prologue Field:
1 byte Node Address (NAD)
1 byte Protocol Control Byte (PCB)
1 byte Length (LEN)
Information Field:
0-254 byte APDU or Control Information (INF)
Epilogue Field:
1 byte Error Detection Code (EDC)
NAD:
bit 7 unused
bit 4..6 Destination Node Address (DAD)
bit 3 unused
bit 2..0 Source Node Address (SAD)
If node adresses are not used, SAD and DAD should be set to 0 on
the first block sent to the card. If they are used they should
have different values (0 for one is okay); that first block sets up
the addresses of the nodes.
PCB:
Information Block (I-Block):
bit 7 0
bit 6 Sequence number (yep, that is modulo 2)
bit 5 Chaining flag
bit 4..0 reserved
Received-Ready Block (R-Block):
bit 7 1
bit 6 0
bit 5 0
bit 4 Sequence number
bit 3..0 0 = no error
1 = EDC or parity error
2 = other error
other values are reserved
Supervisory Block (S-Block):
bit 7 1
bit 6 1
bit 5 clear=request,set=response
bit 4..0 0 = resyncronisation request
1 = information field size request
2 = abort request
3 = extension of BWT request
4 = VPP error
other values are reserved
*/
int
ccid_transceive (ccid_driver_t handle,
const unsigned char *apdu_buf, size_t apdu_buflen,
unsigned char *resp, size_t maxresplen, size_t *nresp)
{
int rc;
/* The size of the buffer used to be 10+259. For the via_escape
hack we need one extra byte, thus 11+259. */
unsigned char send_buffer[11+259], recv_buffer[11+259];
const unsigned char *apdu;
size_t apdulen;
unsigned char *msg, *tpdu, *p;
size_t msglen, tpdulen, last_tpdulen, n;
unsigned char seqno;
unsigned int edc;
int use_crc = 0;
int hdrlen, pcboff;
size_t dummy_nresp;
int via_escape = 0;
int next_chunk = 1;
int sending = 1;
int retries = 0;
int resyncing = 0;
int nad_byte;
if (!nresp)
nresp = &dummy_nresp;
*nresp = 0;
/* Smarter readers allow sending APDUs directly; divert here. */
if (handle->apdu_level)
{
/* We employ a hack for Omnikey readers which are able to send
TPDUs using an escape sequence. There is no documentation
but the Windows driver does it this way. Tested using a
CM6121. This method works also for the Cherry XX44
keyboards; however there are problems with the
ccid_tranceive_secure which leads to a loss of sync on the
CCID level. If Cherry wants to make their keyboard work
again, they should hand over some docs. */
if ((handle->id_vendor == VENDOR_OMNIKEY
|| (!handle->idev && handle->id_product == TRANSPORT_CM4040))
&& handle->apdu_level < 2
&& is_exlen_apdu (apdu_buf, apdu_buflen))
via_escape = 1;
else
return ccid_transceive_apdu_level (handle, apdu_buf, apdu_buflen,
resp, maxresplen, nresp);
}
/* The other readers we support require sending TPDUs. */
tpdulen = 0; /* Avoid compiler warning about no initialization. */
msg = send_buffer;
hdrlen = via_escape? 11 : 10;
/* NAD: DAD=1, SAD=0 */
nad_byte = handle->nonnull_nad? ((1 << 4) | 0): 0;
if (via_escape)
nad_byte = 0;
last_tpdulen = 0; /* Avoid gcc warning (controlled by RESYNCING). */
for (;;)
{
if (next_chunk)
{
next_chunk = 0;
apdu = apdu_buf;
apdulen = apdu_buflen;
assert (apdulen);
/* Construct an I-Block. */
tpdu = msg + hdrlen;
tpdu[0] = nad_byte;
tpdu[1] = ((handle->t1_ns & 1) << 6); /* I-block */
if (apdulen > handle->ifsc )
{
apdulen = handle->ifsc;
apdu_buf += handle->ifsc;
apdu_buflen -= handle->ifsc;
tpdu[1] |= (1 << 5); /* Set more bit. */
}
tpdu[2] = apdulen;
memcpy (tpdu+3, apdu, apdulen);
tpdulen = 3 + apdulen;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
}
if (via_escape)
{
msg[0] = PC_to_RDR_Escape;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0; /* RFU */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
msg[10] = 0x1a; /* Omnikey command to send a TPDU. */
set_msg_len (msg, 1 + tpdulen);
}
else
{
msg[0] = PC_to_RDR_XfrBlock;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 4; /* bBWI */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
set_msg_len (msg, tpdulen);
}
msglen = hdrlen + tpdulen;
if (!resyncing)
last_tpdulen = tpdulen;
pcboff = hdrlen+1;
if (debug_level > 1)
DEBUGOUT_3 ("T=1: put %c-block seq=%d%s\n",
((msg[pcboff] & 0xc0) == 0x80)? 'R' :
(msg[pcboff] & 0x80)? 'S' : 'I',
((msg[pcboff] & 0x80)? !!(msg[pcboff]& 0x10)
: !!(msg[pcboff] & 0x40)),
(!(msg[pcboff] & 0x80) && (msg[pcboff] & 0x20)?
" [more]":""));
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
msg = recv_buffer;
rc = bulk_in (handle, msg, sizeof recv_buffer, &msglen,
via_escape? RDR_to_PC_Escape : RDR_to_PC_DataBlock,
seqno, CCID_CMD_TIMEOUT, 0);
if (rc)
return rc;
tpdu = msg + hdrlen;
tpdulen = msglen - hdrlen;
resyncing = 0;
if (tpdulen < 4)
{
libusb_clear_halt (handle->idev, handle->ep_bulk_in);
return CCID_DRIVER_ERR_ABORTED;
}
if (debug_level > 1)
DEBUGOUT_4 ("T=1: got %c-block seq=%d err=%d%s\n",
((msg[pcboff] & 0xc0) == 0x80)? 'R' :
(msg[pcboff] & 0x80)? 'S' : 'I',
((msg[pcboff] & 0x80)? !!(msg[pcboff]& 0x10)
: !!(msg[pcboff] & 0x40)),
((msg[pcboff] & 0xc0) == 0x80)? (msg[pcboff] & 0x0f) : 0,
(!(msg[pcboff] & 0x80) && (msg[pcboff] & 0x20)?
" [more]":""));
if (!(tpdu[1] & 0x80))
{ /* This is an I-block. */
retries = 0;
if (sending)
{ /* last block sent was successful. */
handle->t1_ns ^= 1;
sending = 0;
}
if (!!(tpdu[1] & 0x40) != handle->t1_nr)
{ /* Response does not match our sequence number. */
msg = send_buffer;
tpdu = msg + hdrlen;
tpdu[0] = nad_byte;
tpdu[1] = (0x80 | (handle->t1_nr & 1) << 4 | 2); /* R-block */
tpdu[2] = 0;
tpdulen = 3;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
continue;
}
handle->t1_nr ^= 1;
p = tpdu + 3; /* Skip the prologue field. */
n = tpdulen - 3 - 1; /* Strip the epilogue field. */
/* fixme: verify the checksum. */
if (resp)
{
if (n > maxresplen)
{
DEBUGOUT_2 ("provided buffer too short for received data "
"(%u/%u)\n",
(unsigned int)n, (unsigned int)maxresplen);
return CCID_DRIVER_ERR_INV_VALUE;
}
memcpy (resp, p, n);
resp += n;
*nresp += n;
maxresplen -= n;
}
if (!(tpdu[1] & 0x20))
return 0; /* No chaining requested - ready. */
msg = send_buffer;
tpdu = msg + hdrlen;
tpdu[0] = nad_byte;
tpdu[1] = (0x80 | (handle->t1_nr & 1) << 4); /* R-block */
tpdu[2] = 0;
tpdulen = 3;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
}
else if ((tpdu[1] & 0xc0) == 0x80)
{ /* This is a R-block. */
if ( (tpdu[1] & 0x0f))
{
retries++;
if (via_escape && retries == 1 && (msg[pcboff] & 0x0f))
{
/* Error probably due to switching to TPDU. Send a
resync request. We use the recv_buffer so that
we don't corrupt the send_buffer. */
msg = recv_buffer;
tpdu = msg + hdrlen;
tpdu[0] = nad_byte;
tpdu[1] = 0xc0; /* S-block resync request. */
tpdu[2] = 0;
tpdulen = 3;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
resyncing = 1;
DEBUGOUT ("T=1: requesting resync\n");
}
else if (retries > 3)
{
DEBUGOUT ("T=1: 3 failed retries\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
else
{
/* Error: repeat last block */
msg = send_buffer;
tpdulen = last_tpdulen;
}
}
else if (sending && !!(tpdu[1] & 0x10) == handle->t1_ns)
{ /* Response does not match our sequence number. */
DEBUGOUT ("R-block with wrong seqno received on more bit\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
else if (sending)
{ /* Send next chunk. */
retries = 0;
msg = send_buffer;
next_chunk = 1;
handle->t1_ns ^= 1;
}
else
{
DEBUGOUT ("unexpected ACK R-block received\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
}
else
{ /* This is a S-block. */
retries = 0;
DEBUGOUT_2 ("T=1: S-block %s received cmd=%d\n",
(tpdu[1] & 0x20)? "response": "request",
(tpdu[1] & 0x1f));
if ( !(tpdu[1] & 0x20) && (tpdu[1] & 0x1f) == 1 && tpdu[2] == 1)
{
/* Information field size request. */
unsigned char ifsc = tpdu[3];
if (ifsc < 16 || ifsc > 254)
return CCID_DRIVER_ERR_CARD_IO_ERROR;
msg = send_buffer;
tpdu = msg + hdrlen;
tpdu[0] = nad_byte;
tpdu[1] = (0xc0 | 0x20 | 1); /* S-block response */
tpdu[2] = 1;
tpdu[3] = ifsc;
tpdulen = 4;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
DEBUGOUT_1 ("T=1: requesting an ifsc=%d\n", ifsc);
}
else if ( !(tpdu[1] & 0x20) && (tpdu[1] & 0x1f) == 3 && tpdu[2])
{
/* Wait time extension request. */
unsigned char bwi = tpdu[3];
msg = send_buffer;
tpdu = msg + hdrlen;
tpdu[0] = nad_byte;
tpdu[1] = (0xc0 | 0x20 | 3); /* S-block response */
tpdu[2] = 1;
tpdu[3] = bwi;
tpdulen = 4;
edc = compute_edc (tpdu, tpdulen, use_crc);
if (use_crc)
tpdu[tpdulen++] = (edc >> 8);
tpdu[tpdulen++] = edc;
DEBUGOUT_1 ("T=1: waittime extension of bwi=%d\n", bwi);
print_progress (handle);
}
else if ( (tpdu[1] & 0x20) && (tpdu[1] & 0x1f) == 0 && !tpdu[2])
{
DEBUGOUT ("T=1: resync ack from reader\n");
/* Repeat previous block. */
msg = send_buffer;
tpdulen = last_tpdulen;
}
else
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
} /* end T=1 protocol loop. */
return 0;
}
/* Send the CCID Secure command to the reader. APDU_BUF should
contain the APDU template. PIN_MODE defines how the pin gets
formatted:
1 := The PIN is ASCII encoded and of variable length. The
length of the PIN entered will be put into Lc by the reader.
The APDU should me made up of 4 bytes without Lc.
PINLEN_MIN and PINLEN_MAX define the limits for the pin length. 0
may be used t enable reasonable defaults.
When called with RESP and NRESP set to NULL, the function will
merely check whether the reader supports the secure command for the
given APDU and PIN_MODE. */
int
ccid_transceive_secure (ccid_driver_t handle,
const unsigned char *apdu_buf, size_t apdu_buflen,
pininfo_t *pininfo,
unsigned char *resp, size_t maxresplen, size_t *nresp)
{
int rc;
unsigned char send_buffer[10+259], recv_buffer[10+259];
unsigned char *msg, *tpdu, *p;
size_t msglen, tpdulen, n;
unsigned char seqno;
size_t dummy_nresp;
int testmode;
int cherry_mode = 0;
int add_zero = 0;
int enable_varlen = 0;
testmode = !resp && !nresp;
if (!nresp)
nresp = &dummy_nresp;
*nresp = 0;
if (apdu_buflen >= 4 && apdu_buf[1] == 0x20 && (handle->has_pinpad & 1))
;
else if (apdu_buflen >= 4 && apdu_buf[1] == 0x24 && (handle->has_pinpad & 2))
;
else
return CCID_DRIVER_ERR_NO_PINPAD;
if (!pininfo->minlen)
pininfo->minlen = 1;
if (!pininfo->maxlen)
pininfo->maxlen = 15;
/* Note that the 25 is the maximum value the SPR532 allows. */
if (pininfo->minlen < 1 || pininfo->minlen > 25
|| pininfo->maxlen < 1 || pininfo->maxlen > 25
|| pininfo->minlen > pininfo->maxlen)
return CCID_DRIVER_ERR_INV_VALUE;
/* We have only tested a few readers so better don't risk anything
and do not allow the use with other readers. */
switch (handle->id_vendor)
{
case VENDOR_SCM: /* Tested with SPR 532. */
case VENDOR_KAAN: /* Tested with KAAN Advanced (1.02). */
case VENDOR_FSIJ: /* Tested with Gnuk (0.21). */
pininfo->maxlen = 25;
enable_varlen = 1;
break;
case VENDOR_REINER:/* Tested with cyberJack go */
case VENDOR_VASCO: /* Tested with DIGIPASS 920 */
enable_varlen = 1;
break;
case VENDOR_CHERRY:
pininfo->maxlen = 15;
enable_varlen = 1;
/* The CHERRY XX44 keyboard echos an asterisk for each entered
character on the keyboard channel. We use a special variant
of PC_to_RDR_Secure which directs these characters to the
smart card's bulk-in channel. We also need to append a zero
Lc byte to the APDU. It seems that it will be replaced with
the actual length instead of being appended before the APDU
is send to the card. */
add_zero = 1;
if (handle->id_product != CHERRY_ST2000)
cherry_mode = 1;
break;
default:
if ((handle->id_vendor == VENDOR_GEMPC &&
handle->id_product == GEMPC_PINPAD)
|| (handle->id_vendor == VENDOR_VEGA &&
handle->id_product == VEGA_ALPHA))
{
enable_varlen = 0;
pininfo->minlen = 4;
pininfo->maxlen = 8;
break;
}
return CCID_DRIVER_ERR_NOT_SUPPORTED;
}
if (enable_varlen)
pininfo->fixedlen = 0;
if (testmode)
return 0; /* Success */
if (pininfo->fixedlen < 0 || pininfo->fixedlen >= 16)
return CCID_DRIVER_ERR_NOT_SUPPORTED;
msg = send_buffer;
if (handle->id_vendor == VENDOR_SCM)
{
DEBUGOUT ("sending escape sequence to switch to a case 1 APDU\n");
rc = send_escape_cmd (handle, (const unsigned char*)"\x80\x02\x00", 3,
NULL, 0, NULL);
if (rc)
return rc;
}
msg[0] = cherry_mode? 0x89 : PC_to_RDR_Secure;
msg[5] = 0; /* slot */
msg[6] = seqno = handle->seqno++;
msg[7] = 0; /* bBWI */
msg[8] = 0; /* RFU */
msg[9] = 0; /* RFU */
msg[10] = apdu_buf[1] == 0x20 ? 0 : 1;
/* Perform PIN verification or PIN modification. */
msg[11] = 0; /* Timeout in seconds. */
msg[12] = 0x82; /* bmFormatString: Byte, pos=0, left, ASCII. */
if (handle->id_vendor == VENDOR_SCM)
{
/* For the SPR532 the next 2 bytes need to be zero. We do this
for all SCM products. Kudos to Martin Paljak for this
hint. */
msg[13] = msg[14] = 0;
}
else
{
msg[13] = pininfo->fixedlen; /* bmPINBlockString:
0 bits of pin length to insert.
PIN block size by fixedlen. */
msg[14] = 0x00; /* bmPINLengthFormat:
Units are bytes, position is 0. */
}
msglen = 15;
if (apdu_buf[1] == 0x24)
{
msg[msglen++] = 0; /* bInsertionOffsetOld */
msg[msglen++] = pininfo->fixedlen; /* bInsertionOffsetNew */
}
/* The following is a little endian word. */
msg[msglen++] = pininfo->maxlen; /* wPINMaxExtraDigit-Maximum. */
msg[msglen++] = pininfo->minlen; /* wPINMaxExtraDigit-Minimum. */
if (apdu_buf[1] == 0x24)
msg[msglen++] = apdu_buf[2] == 0 ? 0x03 : 0x01;
/* bConfirmPIN
* 0x00: new PIN once
* 0x01: new PIN twice (confirmation)
* 0x02: old PIN and new PIN once
* 0x03: old PIN and new PIN twice (confirmation)
*/
msg[msglen] = 0x02; /* bEntryValidationCondition:
Validation key pressed */
if (pininfo->minlen && pininfo->maxlen && pininfo->minlen == pininfo->maxlen)
msg[msglen] |= 0x01; /* Max size reached. */
msglen++;
if (apdu_buf[1] == 0x20)
msg[msglen++] = 0x01; /* bNumberMessage. */
else
msg[msglen++] = 0x03; /* bNumberMessage. */
msg[msglen++] = 0x09; /* wLangId-Low: English FIXME: use the first entry. */
msg[msglen++] = 0x04; /* wLangId-High. */
if (apdu_buf[1] == 0x20)
msg[msglen++] = 0; /* bMsgIndex. */
else
{
msg[msglen++] = 0; /* bMsgIndex1. */
msg[msglen++] = 1; /* bMsgIndex2. */
msg[msglen++] = 2; /* bMsgIndex3. */
}
/* Calculate Lc. */
n = pininfo->fixedlen;
if (apdu_buf[1] == 0x24)
n += pininfo->fixedlen;
/* bTeoProlog follows: */
msg[msglen++] = handle->nonnull_nad? ((1 << 4) | 0): 0;
msg[msglen++] = ((handle->t1_ns & 1) << 6); /* I-block */
if (n)
msg[msglen++] = n + 5; /* apdulen should be filled for fixed length. */
else
msg[msglen++] = 0; /* The apdulen will be filled in by the reader. */
/* APDU follows: */
msg[msglen++] = apdu_buf[0]; /* CLA */
msg[msglen++] = apdu_buf[1]; /* INS */
msg[msglen++] = apdu_buf[2]; /* P1 */
msg[msglen++] = apdu_buf[3]; /* P2 */
if (add_zero)
msg[msglen++] = 0;
else if (pininfo->fixedlen != 0)
{
msg[msglen++] = n;
memset (&msg[msglen], 0xff, n);
msglen += n;
}
/* An EDC is not required. */
set_msg_len (msg, msglen - 10);
rc = bulk_out (handle, msg, msglen, 0);
if (rc)
return rc;
msg = recv_buffer;
rc = bulk_in (handle, msg, sizeof recv_buffer, &msglen,
RDR_to_PC_DataBlock, seqno, 30000, 0);
if (rc)
return rc;
tpdu = msg + 10;
tpdulen = msglen - 10;
if (handle->apdu_level)
{
if (resp)
{
if (tpdulen > maxresplen)
{
DEBUGOUT_2 ("provided buffer too short for received data "
"(%u/%u)\n",
(unsigned int)tpdulen, (unsigned int)maxresplen);
return CCID_DRIVER_ERR_INV_VALUE;
}
memcpy (resp, tpdu, tpdulen);
*nresp = tpdulen;
}
return 0;
}
if (tpdulen < 4)
{
libusb_clear_halt (handle->idev, handle->ep_bulk_in);
return CCID_DRIVER_ERR_ABORTED;
}
if (debug_level > 1)
DEBUGOUT_4 ("T=1: got %c-block seq=%d err=%d%s\n",
((msg[11] & 0xc0) == 0x80)? 'R' :
(msg[11] & 0x80)? 'S' : 'I',
((msg[11] & 0x80)? !!(msg[11]& 0x10) : !!(msg[11] & 0x40)),
((msg[11] & 0xc0) == 0x80)? (msg[11] & 0x0f) : 0,
(!(msg[11] & 0x80) && (msg[11] & 0x20)? " [more]":""));
if (!(tpdu[1] & 0x80))
{ /* This is an I-block. */
/* Last block sent was successful. */
handle->t1_ns ^= 1;
if (!!(tpdu[1] & 0x40) != handle->t1_nr)
{ /* Response does not match our sequence number. */
DEBUGOUT ("I-block with wrong seqno received\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
handle->t1_nr ^= 1;
p = tpdu + 3; /* Skip the prologue field. */
n = tpdulen - 3 - 1; /* Strip the epilogue field. */
/* fixme: verify the checksum. */
if (resp)
{
if (n > maxresplen)
{
DEBUGOUT_2 ("provided buffer too short for received data "
"(%u/%u)\n",
(unsigned int)n, (unsigned int)maxresplen);
return CCID_DRIVER_ERR_INV_VALUE;
}
memcpy (resp, p, n);
resp += n;
*nresp += n;
maxresplen -= n;
}
if (!(tpdu[1] & 0x20))
return 0; /* No chaining requested - ready. */
DEBUGOUT ("chaining requested but not supported for Secure operation\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
else if ((tpdu[1] & 0xc0) == 0x80)
{ /* This is a R-block. */
if ( (tpdu[1] & 0x0f))
{ /* Error: repeat last block */
DEBUGOUT ("No retries supported for Secure operation\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
else if (!!(tpdu[1] & 0x10) == handle->t1_ns)
{ /* Response does not match our sequence number. */
DEBUGOUT ("R-block with wrong seqno received on more bit\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
else
{ /* Send next chunk. */
DEBUGOUT ("chaining not supported on Secure operation\n");
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
}
else
{ /* This is a S-block. */
DEBUGOUT_2 ("T=1: S-block %s received cmd=%d for Secure operation\n",
(tpdu[1] & 0x20)? "response": "request",
(tpdu[1] & 0x1f));
return CCID_DRIVER_ERR_CARD_IO_ERROR;
}
return 0;
}
#ifdef TEST
static void
print_error (int err)
{
const char *p;
char buf[50];
switch (err)
{
case 0: p = "success";
case CCID_DRIVER_ERR_OUT_OF_CORE: p = "out of core"; break;
case CCID_DRIVER_ERR_INV_VALUE: p = "invalid value"; break;
case CCID_DRIVER_ERR_NO_DRIVER: p = "no driver"; break;
case CCID_DRIVER_ERR_NOT_SUPPORTED: p = "not supported"; break;
case CCID_DRIVER_ERR_LOCKING_FAILED: p = "locking failed"; break;
case CCID_DRIVER_ERR_BUSY: p = "busy"; break;
case CCID_DRIVER_ERR_NO_CARD: p = "no card"; break;
case CCID_DRIVER_ERR_CARD_INACTIVE: p = "card inactive"; break;
case CCID_DRIVER_ERR_CARD_IO_ERROR: p = "card I/O error"; break;
case CCID_DRIVER_ERR_GENERAL_ERROR: p = "general error"; break;
case CCID_DRIVER_ERR_NO_READER: p = "no reader"; break;
case CCID_DRIVER_ERR_ABORTED: p = "aborted"; break;
default: sprintf (buf, "0x%05x", err); p = buf; break;
}
fprintf (stderr, "operation failed: %s\n", p);
}
static void
print_data (const unsigned char *data, size_t length)
{
if (length >= 2)
{
fprintf (stderr, "operation status: %02X%02X\n",
data[length-2], data[length-1]);
length -= 2;
}
if (length)
{
fputs (" returned data:", stderr);
for (; length; length--, data++)
fprintf (stderr, " %02X", *data);
putc ('\n', stderr);
}
}
static void
print_result (int rc, const unsigned char *data, size_t length)
{
if (rc)
print_error (rc);
else if (data)
print_data (data, length);
}
int
main (int argc, char **argv)
{
int rc;
ccid_driver_t ccid;
int slotstat;
unsigned char result[512];
size_t resultlen;
int no_pinpad = 0;
int verify_123456 = 0;
int did_verify = 0;
int no_poll = 0;
if (argc)
{
argc--;
argv++;
}
while (argc)
{
if ( !strcmp (*argv, "--list"))
{
char *p;
p = ccid_get_reader_list ();
if (!p)
return 1;
fputs (p, stderr);
free (p);
return 0;
}
else if ( !strcmp (*argv, "--debug"))
{
ccid_set_debug_level (ccid_set_debug_level (-1)+1);
argc--; argv++;
}
else if ( !strcmp (*argv, "--no-poll"))
{
no_poll = 1;
argc--; argv++;
}
else if ( !strcmp (*argv, "--no-pinpad"))
{
no_pinpad = 1;
argc--; argv++;
}
else if ( !strcmp (*argv, "--verify-123456"))
{
verify_123456 = 1;
argc--; argv++;
}
else
break;
}
rc = ccid_open_reader (&ccid, argc? *argv:NULL, NULL);
if (rc)
return 1;
if (!no_poll)
ccid_poll (ccid);
fputs ("getting ATR ...\n", stderr);
rc = ccid_get_atr (ccid, NULL, 0, NULL);
if (rc)
{
print_error (rc);
return 1;
}
if (!no_poll)
ccid_poll (ccid);
fputs ("getting slot status ...\n", stderr);
rc = ccid_slot_status (ccid, &slotstat);
if (rc)
{
print_error (rc);
return 1;
}
if (!no_poll)
ccid_poll (ccid);
fputs ("selecting application OpenPGP ....\n", stderr);
{
static unsigned char apdu[] = {
0, 0xA4, 4, 0, 6, 0xD2, 0x76, 0x00, 0x01, 0x24, 0x01};
rc = ccid_transceive (ccid,
apdu, sizeof apdu,
result, sizeof result, &resultlen);
print_result (rc, result, resultlen);
}
if (!no_poll)
ccid_poll (ccid);
fputs ("getting OpenPGP DO 0x65 ....\n", stderr);
{
static unsigned char apdu[] = { 0, 0xCA, 0, 0x65, 254 };
rc = ccid_transceive (ccid, apdu, sizeof apdu,
result, sizeof result, &resultlen);
print_result (rc, result, resultlen);
}
if (!no_pinpad)
{
}
if (!no_pinpad)
{
static unsigned char apdu[] = { 0, 0x20, 0, 0x81 };
if (ccid_transceive_secure (ccid,
apdu, sizeof apdu,
1, 0, 0, 0,
NULL, 0, NULL))
fputs ("can't verify using a PIN-Pad reader\n", stderr);
else
{
fputs ("verifying CHV1 using the PINPad ....\n", stderr);
rc = ccid_transceive_secure (ccid,
apdu, sizeof apdu,
1, 0, 0, 0,
result, sizeof result, &resultlen);
print_result (rc, result, resultlen);
did_verify = 1;
}
}
if (verify_123456 && !did_verify)
{
fputs ("verifying that CHV1 is 123456....\n", stderr);
{
static unsigned char apdu[] = {0, 0x20, 0, 0x81,
6, '1','2','3','4','5','6'};
rc = ccid_transceive (ccid, apdu, sizeof apdu,
result, sizeof result, &resultlen);
print_result (rc, result, resultlen);
}
}
if (!rc)
{
fputs ("getting OpenPGP DO 0x5E ....\n", stderr);
{
static unsigned char apdu[] = { 0, 0xCA, 0, 0x5E, 254 };
rc = ccid_transceive (ccid, apdu, sizeof apdu,
result, sizeof result, &resultlen);
print_result (rc, result, resultlen);
}
}
ccid_close_reader (ccid);
return 0;
}
/*
* Local Variables:
* compile-command: "gcc -DTEST -Wall -I/usr/local/include -lusb -g ccid-driver.c"
* End:
*/
#endif /*TEST*/
#endif /*HAVE_LIBUSB*/
diff --git a/scd/ccid-driver.h b/scd/ccid-driver.h
index e3aed9f56..9e71f5eb1 100644
--- a/scd/ccid-driver.h
+++ b/scd/ccid-driver.h
@@ -1,138 +1,146 @@
-/* ccid-driver.c - USB ChipCardInterfaceDevices driver
- * Copyright (C) 2003 Free Software Foundation, Inc.
+/* ccid-driver.h - USB ChipCardInterfaceDevices driver
+ * Copyright (C) 2003 Free Software Foundation, Inc.
*
* 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 <https://www.gnu.org/licenses/>.
*
* ALTERNATIVELY, this file may be distributed under the terms of the
* following license, in which case the provisions of this license are
* required INSTEAD OF the GNU General Public License. If you wish to
* allow use of your version of this file only under the terms of the
* GNU General Public License, and not to allow others to use your
* version of this file under the terms of the following license,
* indicate your decision by deleting this paragraph and the license
* below.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
*/
#ifndef CCID_DRIVER_H
#define CCID_DRIVER_H
#ifdef CCID_DRIVER_INCLUDE_USB_IDS
/* We need to know the vendor to do some hacks. */
enum {
VENDOR_CHERRY = 0x046a,
VENDOR_SCM = 0x04e6,
VENDOR_OMNIKEY= 0x076b,
VENDOR_GEMPC = 0x08e6,
VENDOR_VEGA = 0x0982,
VENDOR_REINER = 0x0c4b,
VENDOR_KAAN = 0x0d46,
VENDOR_FSIJ = 0x234b,
VENDOR_VASCO = 0x1a44
};
/* Some product ids. */
#define SCM_SCR331 0xe001
#define SCM_SCR331DI 0x5111
#define SCM_SCR335 0x5115
#define SCM_SCR3320 0x5117
#define SCM_SPR532 0xe003 /* Also used succeeding model SPR332. */
#define CHERRY_ST2000 0x003e
#define VASCO_920 0x0920
#define GEMPC_PINPAD 0x3478
#define GEMPC_CT30 0x3437
#define VEGA_ALPHA 0x0008
#define CYBERJACK_GO 0x0504
#endif /*CCID_DRIVER_INCLUDE_USB_IDS*/
/* The CID driver returns the same error codes as the status words
used by GnuPG's apdu.h. For ease of maintenance they should always
match. */
#define CCID_DRIVER_ERR_OUT_OF_CORE 0x10001
#define CCID_DRIVER_ERR_INV_VALUE 0x10002
#define CCID_DRIVER_ERR_INCOMPLETE_CARD_RESPONSE = 0x10003
#define CCID_DRIVER_ERR_NO_DRIVER 0x10004
#define CCID_DRIVER_ERR_NOT_SUPPORTED 0x10005
#define CCID_DRIVER_ERR_LOCKING_FAILED 0x10006
#define CCID_DRIVER_ERR_BUSY 0x10007
#define CCID_DRIVER_ERR_NO_CARD 0x10008
#define CCID_DRIVER_ERR_CARD_INACTIVE 0x10009
#define CCID_DRIVER_ERR_CARD_IO_ERROR 0x1000a
#define CCID_DRIVER_ERR_GENERAL_ERROR 0x1000b
#define CCID_DRIVER_ERR_NO_READER 0x1000c
#define CCID_DRIVER_ERR_ABORTED 0x1000d
#define CCID_DRIVER_ERR_NO_PINPAD 0x1000e
struct ccid_driver_s;
typedef struct ccid_driver_s *ccid_driver_t;
+struct ccid_dev_table;
+
int ccid_set_debug_level (int level);
char *ccid_get_reader_list (void);
-int ccid_open_reader (ccid_driver_t *handle, const char *readerid,
- const char **rdrname_p);
+
+gpg_error_t ccid_dev_scan (int *idx_max, struct ccid_dev_table **t_p);
+void ccid_dev_scan_finish (struct ccid_dev_table *tbl, int max);
+unsigned int ccid_get_BAI (int, struct ccid_dev_table *tbl);
+int ccid_compare_BAI (ccid_driver_t handle, unsigned int);
+int ccid_open_reader (const char *spec_reader_name,
+ int idx, struct ccid_dev_table *ccid_table,
+ ccid_driver_t *handle, char **rdrname_p);
int ccid_set_progress_cb (ccid_driver_t handle,
void (*cb)(void *, const char *, int, int, int),
void *cb_arg);
int ccid_shutdown_reader (ccid_driver_t handle);
int ccid_close_reader (ccid_driver_t handle);
int ccid_get_atr (ccid_driver_t handle,
unsigned char *atr, size_t maxatrlen, size_t *atrlen);
int ccid_slot_status (ccid_driver_t handle, int *statusbits);
int ccid_transceive (ccid_driver_t handle,
const unsigned char *apdu, size_t apdulen,
unsigned char *resp, size_t maxresplen, size_t *nresp);
int ccid_transceive_secure (ccid_driver_t handle,
const unsigned char *apdu, size_t apdulen,
- pininfo_t *pininfo,
+ pininfo_t *pininfo,
unsigned char *resp, size_t maxresplen, size_t *nresp);
int ccid_transceive_escape (ccid_driver_t handle,
const unsigned char *data, size_t datalen,
unsigned char *resp, size_t maxresplen,
size_t *nresp);
#endif /*CCID_DRIVER_H*/

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