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extracted libpace from ccid

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git-svn-id: https://vsmartcard.svn.sourceforge.net/svnroot/vsmartcard@359 96b47cad-a561-4643-ad3b-153ac7d7599c
This commit is contained in:
frankmorgner
2010-11-14 20:34:52 +00:00
parent d6aff6c0d9
commit 915b2fe5f2
28 changed files with 2588 additions and 936 deletions
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11
ccid/Makefile.am
View File

@@ -1,9 +1,9 @@
ACLOCAL_AMFLAGS = -I m4
SUBDIRS = src m4 patches
DISTCLEANFILES = Doxyfile libpace.pc
DISTCLEANFILES = Doxyfile
EXTRA_DIST = README.dox libpace.pc.in Doxyfile.in apdus
EXTRA_DIST = README.dox Doxyfile.in apdus
do_subst = sed \
-e 's,[@]PACKAGE_NAME[@],$(PACKAGE_NAME),g' \
@@ -26,10 +26,3 @@ doc :
.PHONY: doc
endif
if WITH_PACE
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libpace.pc
libpace.pc :
$(do_subst) < $(srcdir)/libpace.pc.in > libpace.pc
endif

31
ccid/configure.ac
View File

@@ -7,6 +7,7 @@ AC_CONFIG_SRCDIR([src/ccid.c])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE
LT_INIT
# Checks for programs.
AC_PROG_CXX
@@ -14,7 +15,6 @@ AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_LIBTOOL
AC_PROG_RANLIB
AM_PROG_CC_C_O
PKG_PROG_PKG_CONFIG
@@ -74,28 +74,35 @@ saved_CPPFLAGS="$CPPFLAGS"
saved_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $OPENSSL_CFLAGS"
LIBS="$LDFLAGS $OPENSSL_LIBS"
AC_CHECK_HEADERS(openssl/evp.h, [], [ AC_MSG_ERROR([openssl/evp.h not found, install OpenSSL or use ./configure OPENSSL_CFLAGS=...]) ])
AC_MSG_CHECKING([for EVP_read_pw_string_min])
AC_TRY_LINK_FUNC(EVP_read_pw_string_min, [ AC_MSG_RESULT([yes]) ], [ AC_MSG_ERROR([OpenSSL not found, use ./configure OPENSSL_LIBS=...]) ])
CPPFLAGS="$saved_CPPFLAGS"
LIBS="$saved_LIBS"
AC_SUBST(OPENSSL_CFLAGS)
AC_SUBST(OPENSSL_LIBS)
# --enable-pace
AC_ARG_ENABLE(pace,
AS_HELP_STRING([--enable-pace], [Enable Password Authenticated Connection Establishment (PACE)]),
[enable_pace="${enableval}"], [enable_pace=no])
if test "x$enable_pace" != xno ; then
AC_CHECK_HEADERS(openssl/pace.h, [], [ AC_MSG_ERROR([openssl/pace.h not found, install OpenPACE or use ./configure OPENSSL_CFLAGS=...]) ])
AC_MSG_CHECKING([for parse_ef_card_access])
AC_TRY_LINK_FUNC(parse_ef_card_access, [ AC_MSG_RESULT([yes]) ], [ AC_MSG_ERROR([OpenPACE not found, use ./configure OPENSSL_LIBS=...]) ])
PKG_CHECK_EXISTS([libpace],
[PKG_CHECK_MODULES([LIBPACE], [libpace])],
[AC_MSG_WARN([libpace not found by pkg-config])])
saved_CPPFLAGS="$CPPFLAGS"
saved_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $LIBPACE_CFLAGS"
LIBS="$LDFLAGS $LIBPACE_LIBS"
AC_CHECK_HEADERS(pace/pace.h, [], [ AC_MSG_ERROR([pace/pace.h not found, install libpace or use ./configure LIBPACE_CFLAGS=...]) ])
AC_MSG_CHECKING([for EstablishPACEChannel])
AC_TRY_LINK_FUNC(EstablishPACEChannel, [ AC_MSG_RESULT([yes]) ], [ AC_MSG_ERROR([libpace not found, use ./configure LIBPACE_LIBS=...]) ])
CPPFLAGS="$saved_CPPFLAGS"
LIBS="$saved_LIBS"
enable_pace=yes
fi
CPPFLAGS="$saved_CPPFLAGS"
LIBS="$saved_LIBS"
AC_SUBST(OPENSSL_CFLAGS)
AC_SUBST(OPENSSL_LIBS)
AM_CONDITIONAL(WITH_PACE, test "${enable_pace}" != "no")
AM_COND_IF(WITH_PACE, [AC_DEFINE(WITH_PACE, 1, [enable PACE support])])
AM_COND_IF(WITH_PACE, [AC_DEFINE(BUERGERCLIENT_WORKAROUND, 1, [Always get EF.CardAccess, when connecting to a smart card. This is a workaround for the recent Buergerclient])])
@@ -160,7 +167,7 @@ AC_TYPE_UINT8_T
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_CHECK_FUNCS([memmove memset strerror])
AC_CHECK_FUNCS([memmove memset strerror strtol])
cat << EOF
@@ -185,6 +192,8 @@ OPENSC_CFLAGS: ${OPENSC_CFLAGS}
OPENSC_LIBS: ${OPENSC_LIBS}
OPENSSL_CFLAGS: ${OPENSSL_CFLAGS}
OPENSSL_LIBS: ${OPENSSL_LIBS}
LIBPACE_CFLAGS: ${LIBPACE_CFLAGS}
LIBPACE_LIBS: ${LIBPACE_LIBS}
PCSC_CFLAGS: ${PCSC_CFLAGS}
PCSC_LIBS: ${PCSC_LIBS}

29
ccid/src/Makefile.am
View File

@@ -1,9 +1,3 @@
AM_CPPFLAGS = -I$(top_srcdir)/src/pace -I$(top_builddir)/src/pace
libpace_la_SOURCES = sm.c scutil.c pace.c pace_lib.c
libpace_la_LIBADD = $(OPENSC_LIBS) $(OPENSSL_LIBS)
libpace_la_CFLAGS = $(OPENSC_CFLAGS) $(OPENSSL_CFLAGS)
ccid_emulator_SOURCES = ccid.c usbstring.c usb.c binutil.c
ccid_emulator_LDADD = $(OPENSC_LIBS) $(OPENSSL_LIBS) $(PTHREAD_LIBS)
ccid_emulator_CFLAGS = $(OPENSC_CFLAGS) $(OPENSSL_CFLAGS) $(PTHREAD_CFLAGS)
@@ -12,10 +6,6 @@ cats_test_SOURCES = cats-test.c pcscutil.c
cats_test_LDADD = $(PCSC_LIBS)
cats_test_CFLAGS = $(PCSC_CFLAGS)
pace_tool_SOURCES = pace-tool.c binutil.c
pace_tool_LDADD = $(OPENSC_LIBS) $(OPENSSL_LIBS) libpace.la
pace_tool_CFLAGS = $(OPENSC_CFLAGS) $(OPENSSL_CFLAGS)
bin_PROGRAMS =
noinst_HEADERS = \
@@ -38,23 +28,8 @@ endif
if WITH_PACE
bin_PROGRAMS += pace-tool
ccid_emulator_LDADD += libpace.la
lib_LTLIBRARIES = libpace.la
nobase_include_HEADERS = \
pace/sm.h \
pace/pace.h \
pace/scutil.h \
pace/pace_lib.h
ccid_emulator_LDADD += $(LIBPACE_LIBS)
ccid_emulator_CFLAGS += $(LIBPACE_CFLAGS)
else
ccid_emulator_SOURCES += scutil.c sm.c
noinst_HEADERS += \
pace/sm.h \
pace/pace.h \
pace/scutil.h \
pace/pace_lib.h
endif

267
ccid/src/scutil.c
View File

@@ -1,267 +0,0 @@
/*
* Copyright (C) 2010 Frank Morgner
*
* This file is part of ccid.
*
* ccid 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.
*
* ccid 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
* ccid. If not, see <http://www.gnu.org/licenses/>.
*/
#include "scutil.h"
#include <stdio.h>
#include <string.h>
#include <opensc/log.h>
int initialize(int reader_id, const char *cdriver, int verbose,
sc_context_t **ctx, sc_reader_t **reader)
{
unsigned int i, reader_count;
if (!ctx || !reader)
return SC_ERROR_INVALID_ARGUMENTS;
int r = sc_context_create(ctx, NULL);
if (r < 0) {
printf("Failed to create initial context: %s", sc_strerror(r));
return r;
}
if (cdriver != NULL) {
r = sc_set_card_driver(*ctx, cdriver);
if (r < 0) {
sc_error(*ctx, "Card driver '%s' not found!\n", cdriver);
return r;
}
}
(*ctx)->debug = verbose;
reader_count = sc_ctx_get_reader_count(*ctx);
if (reader_count == 0)
return SC_ERROR_NO_READERS_FOUND;
if (reader_id < 0) {
/* Automatically try to skip to a reader with a card if reader not specified */
for (i = 0; i < reader_count; i++) {
*reader = sc_ctx_get_reader(*ctx, i);
if (sc_detect_card_presence(*reader, 0) & SC_SLOT_CARD_PRESENT) {
reader_id = i;
sc_debug(*ctx, "Using the first reader with a card: %s", (*reader)->name);
break;
}
}
if (reader_id >= reader_count) {
sc_debug(*ctx, "No card found, using the first reader.");
reader_id = 0;
}
}
if (reader_id >= reader_count)
return SC_ERROR_NO_READERS_FOUND;
*reader = sc_ctx_get_reader(*ctx, reader_id);
return SC_SUCCESS;
}
int build_apdu(sc_context_t *ctx, const u8 *buf, size_t len, sc_apdu_t *apdu)
{
const u8 *p;
size_t len0;
if (!buf || !apdu)
return SC_ERROR_INVALID_ARGUMENTS;
len0 = len;
if (len < 4) {
sc_error(ctx, "APDU too short (must be at least 4 bytes)");
return SC_ERROR_INVALID_DATA;
}
memset(apdu, 0, sizeof *apdu);
p = buf;
apdu->cla = *p++;
apdu->ins = *p++;
apdu->p1 = *p++;
apdu->p2 = *p++;
len -= 4;
if (!len) {
apdu->cse = SC_APDU_CASE_1;
} else {
if (*p == 0 && len >= 3) {
/* ...must be an extended APDU */
p++;
if (len == 3) {
apdu->le = (*p++)<<8;
apdu->le += *p++;
if (apdu->le == 0)
apdu->le = 0xffff+1;
len -= 3;
apdu->cse = SC_APDU_CASE_2_EXT;
} else {
/* len > 3 */
apdu->lc = (*p++)<<8;
apdu->lc += *p++;
len -= 3;
if (len < apdu->lc) {
sc_error(ctx, "APDU too short (need %lu more bytes)\n",
(unsigned long) apdu->lc - len);
return SC_ERROR_INVALID_DATA;
}
apdu->data = p;
apdu->datalen = apdu->lc;
len -= apdu->lc;
p += apdu->lc;
if (!len) {
apdu->cse = SC_APDU_CASE_3_EXT;
} else {
/* at this point the apdu has a Lc, so Le is on 2 bytes */
if (len < 2) {
sc_error(ctx, "APDU too short (need 2 more bytes)\n");
return SC_ERROR_INVALID_DATA;
}
apdu->le = (*p++)<<8;
apdu->le += *p++;
if (apdu->le == 0)
apdu->le = 0xffff+1;
len -= 2;
apdu->cse = SC_APDU_CASE_4_EXT;
}
}
} else {
/* ...must be a short APDU */
if (len == 1) {
apdu->le = *p++;
if (apdu->le == 0)
apdu->le = 0xff+1;
len--;
apdu->cse = SC_APDU_CASE_2_SHORT;
} else {
apdu->lc = *p++;
len--;
if (len < apdu->lc) {
sc_error(ctx, "APDU too short (need %lu more bytes)\n",
(unsigned long) apdu->lc - len);
return SC_ERROR_INVALID_DATA;
}
apdu->data = p;
apdu->datalen = apdu->lc;
len -= apdu->lc;
p += apdu->lc;
if (!len) {
apdu->cse = SC_APDU_CASE_3_SHORT;
} else {
apdu->le = *p++;
if (apdu->le == 0)
apdu->le = 0xff+1;
len--;
apdu->cse = SC_APDU_CASE_4_SHORT;
}
}
}
if (len) {
sc_error(ctx, "APDU too long (%lu bytes extra)\n",
(unsigned long) len);
return SC_ERROR_INVALID_DATA;
}
}
apdu->flags = SC_APDU_FLAGS_NO_GET_RESP|SC_APDU_FLAGS_NO_RETRY_WL;
sc_debug(ctx, "Case %d %s APDU, %lu bytes:\tins=%02x p1=%02x p2=%02x lc=%04x le=%04x",
apdu->cse & SC_APDU_SHORT_MASK,
(apdu->cse & SC_APDU_EXT) != 0 ? "extended" : "short",
(unsigned long) len0, apdu->ins, apdu->p1, apdu->p2, apdu->lc, apdu->le);
return SC_SUCCESS;
}
void _bin_log(sc_context_t *ctx, int type, const char *file, int line,
const char *func, const char *label, const u8 *data, size_t len,
FILE *f)
{
/* this is the maximum supported by sc_do_log_va */
/* Flawfinder: ignore */
char buf[1800];
if (data)
sc_hex_dump(ctx, data, len, buf, sizeof buf);
else
buf[0] = 0;
if (!f) {
sc_do_log(ctx, type, file, line, func,
"\n%s (%u byte%s):\n%s",
label, len, len==1?"":"s", buf);
} else {
fprintf(f, "%s (%u byte%s):\n%s",
label, len, len==1?"":"s", buf);
}
}
static int list_drivers(sc_context_t *ctx)
{
int i;
if (ctx->card_drivers[0] == NULL) {
printf("No card drivers installed!\n");
return 0;
}
printf("Configured card drivers:\n");
for (i = 0; ctx->card_drivers[i] != NULL; i++) {
printf(" %-16s %s\n", ctx->card_drivers[i]->short_name,
ctx->card_drivers[i]->name);
}
return 0;
}
static int list_readers(sc_context_t *ctx)
{
unsigned int i, rcount = sc_ctx_get_reader_count(ctx);
if (rcount == 0) {
printf("No smart card readers found.\n");
return 0;
}
printf("Readers known about:\n");
printf("Nr. Driver Name\n");
for (i = 0; i < rcount; i++) {
sc_reader_t *screader = sc_ctx_get_reader(ctx, i);
printf("%-7d%-11s%s\n", i, screader->driver->short_name,
screader->name);
}
return 0;
}
int print_avail(int verbose)
{
sc_context_t *ctx = NULL;
int r;
r = sc_context_create(&ctx, NULL);
if (r) {
fprintf(stderr, "Failed to establish context: %s\n", sc_strerror(r));
return 1;
}
ctx->debug = verbose;
r = list_readers(ctx)|list_drivers(ctx);
if (ctx)
sc_release_context(ctx);
return r;
}

1
ccid/src/scutil.c Symbolic link
View File

@@ -0,0 +1 @@
../../npa/src/scutil.c

622
ccid/src/sm.c
View File

@@ -1,622 +0,0 @@
/*
* Copyright (C) 2010 Frank Morgner
*
* This file is part of ccid.
*
* ccid 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.
*
* ccid 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
* ccid. If not, see <http://www.gnu.org/licenses/>.
*/
#include "scutil.h"
#include "sm.h"
#include <arpa/inet.h>
#include <opensc/asn1.h>
#include <opensc/log.h>
#include <stdlib.h>
#include <string.h>
static const struct sc_asn1_entry c_sm_capdu[] = {
{ "Padding-content indicator followed by cryptogram",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x07, SC_ASN1_OPTIONAL, NULL, NULL },
{ "Protected Le",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x17, SC_ASN1_OPTIONAL, NULL, NULL },
{ "Cryptographic Checksum",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x0E, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL , 0 , 0 , 0 , NULL , NULL }
};
static const struct sc_asn1_entry c_sm_rapdu[] = {
{ "Padding-content indicator followed by cryptogram" ,
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x07, SC_ASN1_OPTIONAL, NULL, NULL },
{ "Processing Status",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x19, 0 , NULL, NULL },
{ "Cryptographic Checksum",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x0E, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static int
add_iso_pad(const u8 *data, size_t datalen, int block_size, u8 **padded)
{
u8 *p;
size_t p_len;
if (!padded)
return SC_ERROR_INVALID_ARGUMENTS;
/* calculate length of padded message */
p_len = (datalen / block_size) * block_size + block_size;
p = realloc(*padded, p_len);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
if (*padded != data)
/* Flawfinder: ignore */
memcpy(p, data, datalen);
*padded = p;
/* now add iso padding */
memset(p + datalen, 0x80, 1);
memset(p + datalen + 1, 0, p_len - datalen - 1);
return p_len;
}
static int
add_padding(const struct sm_ctx *ctx, const u8 *data, size_t datalen,
u8 **padded)
{
u8 *p;
switch (ctx->padding_indicator) {
case SM_NO_PADDING:
if (*padded != data) {
p = realloc(*padded, datalen);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
*padded = p;
/* Flawfinder: ignore */
memcpy(*padded, data, datalen);
}
return datalen;
case SM_ISO_PADDING:
return add_iso_pad(data, datalen, ctx->block_length, padded);
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
}
static int
no_padding(u8 padding_indicator, const u8 *data, size_t datalen)
{
if (!datalen || !data)
return SC_ERROR_INVALID_ARGUMENTS;
size_t len;
switch (padding_indicator) {
case SM_NO_PADDING:
len = datalen;
break;
case SM_ISO_PADDING:
len = datalen;
while (len) {
len--;
if (data[len])
break;
}
if (data[len] != 0x80)
return SC_ERROR_INVALID_DATA;
break;
default:
return SC_ERROR_NOT_SUPPORTED;
}
return len;
}
static int format_le(size_t le, struct sc_asn1_entry *le_entry,
u8 **lebuf, size_t *le_len)
{
u8 *p;
if (!lebuf || !le_len)
return SC_ERROR_INVALID_ARGUMENTS;
p = realloc(*lebuf, *le_len);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
switch (*le_len) {
case 1:
p[0] = le;
break;
case 2:
p[0] = htons(le) >> 8;
p[1] = htons(le) & 0xff;
break;
case 3:
p[0] = 0x00;
p[1] = htons(le) >> 8;
p[2] = htons(le) & 0xff;
break;
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
*lebuf = p;
sc_format_asn1_entry(le_entry, *lebuf, le_len, SC_ASN1_PRESENT);
return SC_SUCCESS;
}
static int prefix_buf(u8 prefix, u8 *buf, size_t buflen, u8 **cat)
{
u8 *p;
p = realloc(*cat, buflen + 1);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
if (*cat == buf) {
memmove(p + 1, p, buflen);
} else {
/* Flawfinder: ignore */
memcpy(p + 1, buf, buflen);
}
p[0] = prefix;
*cat = p;
return buflen + 1;
}
static int format_data(sc_card_t *card, const struct sm_ctx *ctx,
const u8 *data, size_t datalen,
struct sc_asn1_entry *formatted_encrypted_data_entry,
u8 **formatted_data, size_t *formatted_data_len)
{
int r;
u8 *pad_data = NULL;
size_t pad_data_len;
if (!ctx || !formatted_data || !formatted_data_len) {
r = SC_ERROR_INVALID_ARGUMENTS;
goto err;
}
r = add_padding(ctx, data, datalen, &pad_data);
if (r < 0) {
sc_error(card->ctx, "Could not add padding to data: %s",
sc_strerror(r));
goto err;
}
pad_data_len = r;
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Data to encrypt", pad_data, pad_data_len);
r = ctx->encrypt(card, ctx, pad_data, pad_data_len, formatted_data);
if (r < 0) {
sc_error(card->ctx, "Could not encrypt the data");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Cryptogram", *formatted_data, r);
r = prefix_buf(ctx->padding_indicator, *formatted_data, r, formatted_data);
if (r < 0) {
sc_error(card->ctx, "Could not prepend padding indicator to formatted "
"data: %s", sc_strerror(r));
goto err;
}
*formatted_data_len = r;
sc_format_asn1_entry(formatted_encrypted_data_entry,
*formatted_data, formatted_data_len, SC_ASN1_PRESENT);
r = SC_SUCCESS;
err:
if (pad_data) {
sc_mem_clear(pad_data, pad_data_len);
free(pad_data);
}
return r;
}
static int format_head(const struct sm_ctx *ctx, const sc_apdu_t *apdu,
u8 **formatted_head)
{
if (!apdu || !formatted_head)
return SC_ERROR_INVALID_ARGUMENTS;
u8 *p = realloc(*formatted_head, 4);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
p[0] = apdu->cla;
p[1] = apdu->ins;
p[2] = apdu->p1;
p[3] = apdu->p2;
*formatted_head = p;
return add_padding(ctx, *formatted_head, 4, formatted_head);
}
static int sm_encrypt(const struct sm_ctx *ctx, sc_card_t *card,
const sc_apdu_t *apdu, sc_apdu_t *sm_apdu)
{
struct sc_asn1_entry sm_capdu[4];
u8 *p, *le = NULL, *sm_data = NULL, *fdata = NULL, *mac_data = NULL,
*asn1 = NULL, *mac = NULL;
size_t sm_data_len, fdata_len, mac_data_len, asn1_len, mac_len, le_len;
int r;
if (!apdu || !ctx || !card || !card->slot || !sm_apdu) {
r = SC_ERROR_INVALID_ARGUMENTS;
goto err;
}
if ((apdu->cla & 0x0C) == 0x0C) {
r = SC_ERROR_INVALID_ARGUMENTS;
sc_error(card->ctx, "Given APDU is already protected with some secure messaging");
goto err;
}
sc_copy_asn1_entry(c_sm_capdu, sm_capdu);
sm_apdu->sensitive = 0;
sm_apdu->control = apdu->control;
sm_apdu->flags = apdu->flags;
sm_apdu->cla = apdu->cla|0x0C;
sm_apdu->ins = apdu->ins;
sm_apdu->p1 = apdu->p1;
sm_apdu->p2 = apdu->p2;
r = format_head(ctx, sm_apdu, &mac_data);
if (r < 0) {
sc_error(card->ctx, "Could not format header of SM apdu");
goto err;
}
mac_data_len = r;
/* get le and data depending on the case of the unsecure command */
switch (apdu->cse) {
case SC_APDU_CASE_1:
break;
case SC_APDU_CASE_2_SHORT:
le_len = 1;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
break;
case SC_APDU_CASE_2_EXT:
if (card->slot->active_protocol == SC_PROTO_T0) {
/* T0 extended APDUs look just like short APDUs */
le_len = 1;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
} else {
/* in case of T1 always use 3 bytes for length */
le_len = 3;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
break;
case SC_APDU_CASE_3_SHORT:
case SC_APDU_CASE_3_EXT:
r = format_data(card, ctx, apdu->data, apdu->datalen,
sm_capdu + 0, &fdata, &fdata_len);
if (r < 0) {
sc_error(card->ctx, "Could not format data of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Padding-content indicator followed by cryptogram (plain)",
fdata, fdata_len);
break;
case SC_APDU_CASE_4_SHORT:
/* in case of T0 no Le byte is added */
if (card->slot->active_protocol != SC_PROTO_T0) {
le_len = 1;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
}
r = format_data(card, ctx, apdu->data, apdu->datalen,
sm_capdu + 0, &fdata, &fdata_len);
if (r < 0) {
sc_error(card->ctx, "Could not format data of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Padding-content indicator followed by cryptogram (plain)",
fdata, fdata_len);
break;
case SC_APDU_CASE_4_EXT:
if (card->slot->active_protocol == SC_PROTO_T0) {
/* again a T0 extended case 4 APDU looks just
* like a short APDU, the additional data is
* transferred using ENVELOPE and GET RESPONSE */
} else {
/* only 2 bytes are use to specify the length of the
* expected data */
le_len = 2;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
}
r = format_data(card, ctx, apdu->data, apdu->datalen,
sm_capdu + 0, &fdata, &fdata_len);
if (r < 0) {
sc_error(card->ctx, "Could not format data of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Padding-content indicator followed by cryptogram (plain)",
fdata, fdata_len);
break;
default:
sc_error(card->ctx, "Unhandled apdu case");
r = SC_ERROR_INVALID_DATA;
goto err;
}
r = sc_asn1_encode(card->ctx, sm_capdu, (u8 **) &asn1, &asn1_len);
if (r < 0) {
goto err;
}
if (asn1_len) {
p = realloc(mac_data, mac_data_len + asn1_len);
if (!p) {
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
mac_data = p;
/* Flawfinder: ignore */
memcpy(mac_data + mac_data_len, asn1, asn1_len);
mac_data_len += asn1_len;
r = add_padding(ctx, mac_data, mac_data_len, &mac_data);
if (r < 0) {
goto err;
}
mac_data_len = r;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Data to authenticate", mac_data, mac_data_len);
r = ctx->authenticate(card, ctx, mac_data, mac_data_len,
&mac);
if (r < 0) {
sc_error(card->ctx, "Could not get authentication code");
goto err;
}
mac_len = r;
sc_format_asn1_entry(sm_capdu + 2, mac, &mac_len,
SC_ASN1_PRESENT);
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Cryptographic Checksum (plain)", mac, mac_len);
/* format SM apdu */
r = sc_asn1_encode(card->ctx, sm_capdu, (u8 **) &sm_data, &sm_data_len);
if (r < 0)
goto err;
if (sm_apdu->datalen < sm_data_len) {
sc_error(card->ctx, "Data for SM APDU too long");
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
/* Flawfinder: ignore */
memcpy((u8 *) sm_apdu->data, sm_data, sm_data_len);
sm_apdu->datalen = sm_data_len;
sm_apdu->lc = sm_apdu->datalen;
sm_apdu->le = 0;
sm_apdu->cse = SC_APDU_CASE_4;
if (card->ctx->debug >= SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "ASN.1 encoded encrypted APDU data", sm_apdu->data, sm_apdu->datalen);
err:
if (fdata)
free(fdata);
if (asn1)
free(asn1);
if (mac_data)
free(mac_data);
if (mac)
free(mac);
if (le)
free(le);
if (sm_data)
free(sm_data);
return r;
}
static int sm_decrypt(const struct sm_ctx *ctx, sc_card_t *card,
const sc_apdu_t *sm_apdu, sc_apdu_t *apdu)
{
int r;
struct sc_asn1_entry sm_rapdu[4];
struct sc_asn1_entry my_sm_rapdu[4];
u8 sw[2], mac[8], fdata[SC_MAX_APDU_BUFFER_SIZE];
size_t sw_len = sizeof sw, mac_len = sizeof mac, fdata_len = sizeof fdata,
buf_len, asn1_len;
const u8 *buf;
u8 *data = NULL, *mac_data = NULL, *asn1 = NULL;
sc_copy_asn1_entry(c_sm_rapdu, sm_rapdu);
sc_format_asn1_entry(sm_rapdu + 0, fdata, &fdata_len, 0);
sc_format_asn1_entry(sm_rapdu + 1, sw, &sw_len, 0);
sc_format_asn1_entry(sm_rapdu + 2, mac, &mac_len, 0);
r = sc_asn1_decode(card->ctx, sm_rapdu, sm_apdu->resp, sm_apdu->resplen,
&buf, &buf_len);
if (r < 0)
goto err;
if (buf_len > 0) {
r = SC_ERROR_UNKNOWN_DATA_RECEIVED;
goto err;
}
if (sm_rapdu[2].flags & SC_ASN1_PRESENT) {
/* copy from sm_apdu to my_sm_apdu, but leave mac at default */
sc_copy_asn1_entry(sm_rapdu, my_sm_rapdu);
sc_copy_asn1_entry(&c_sm_rapdu[2], &my_sm_rapdu[2]);
r = sc_asn1_encode(card->ctx, my_sm_rapdu, &asn1, &asn1_len);
if (r < 0)
goto err;
r = add_padding(ctx, asn1, asn1_len, &mac_data);
if (r < 0) {
goto err;
}
r = ctx->verify_authentication(card, ctx, mac, mac_len,
mac_data, r);
if (r < 0)
goto err;
} else {
sc_error(card->ctx, "Cryptographic Checksum missing");
r = SC_ERROR_ASN1_OBJECT_NOT_FOUND;
goto err;
}
if (sm_rapdu[0].flags & SC_ASN1_PRESENT) {
if (ctx->padding_indicator != fdata[0]) {
r = SC_ERROR_UNKNOWN_DATA_RECEIVED;
goto err;
}
r = ctx->decrypt(card, ctx, fdata + 1, fdata_len - 1, &data);
if (r < 0)
goto err;
buf_len = r;
r = no_padding(ctx->padding_indicator, data, buf_len);
if (r < 0) {
sc_error(card->ctx, "Could not remove padding");
goto err;
}
if (apdu->resplen < r) {
sc_error(card->ctx, "Response of SM APDU too long");
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
/* Flawfinder: ignore */
memcpy(apdu->resp, data, r);
apdu->resplen = r;
} else {
apdu->resplen = 0;
}
if (sm_rapdu[1].flags & SC_ASN1_PRESENT) {
if (sw_len != 2) {
sc_error(card->ctx, "Length of processing status bytes must be 2");
r = SC_ERROR_ASN1_END_OF_CONTENTS;
goto err;
}
apdu->sw1 = sw[0];
apdu->sw2 = sw[1];
} else {
sc_error(card->ctx, "Authenticated status bytes are missing");
r = SC_ERROR_ASN1_OBJECT_NOT_FOUND;
goto err;
}
if (card->ctx->debug >= SC_LOG_TYPE_DEBUG) {
sc_debug(card->ctx, "Decrypted APDU sw1=%02x sw2=%02x",
apdu->sw1, apdu->sw2);
bin_log(card->ctx, "Decrypted APDU response data",
apdu->resp, apdu->resplen);
}
r = SC_SUCCESS;
err:
if (asn1) {
free(asn1);
}
if (mac_data) {
free(mac_data);
}
return r;
}
int sm_transmit_apdu(struct sm_ctx *sctx, sc_card_t *card,
sc_apdu_t *apdu)
{
sc_apdu_t sm_apdu;
u8 rbuf[0xffff], sbuf[0xffff];
sm_apdu.data = sbuf;
sm_apdu.datalen = sizeof sbuf;
sm_apdu.resp = rbuf;
sm_apdu.resplen = sizeof rbuf;
if (!sctx || !sctx->active) {
sc_debug(card->ctx, "Secure messaging disabled.");
return sc_transmit_apdu(card, apdu);
}
if ((apdu->cla & 0x0C) == 0x0C) {
sc_debug(card->ctx, "Given APDU is already protected with some secure messaging. Deactivating own SM context.");
sctx->active = 0;
return sc_transmit_apdu(card, apdu);
}
if (sctx->pre_transmit)
SC_TEST_RET(card->ctx, sctx->pre_transmit(card, sctx, apdu),
"Could not complete SM specific pre transmit routine");
SC_TEST_RET(card->ctx, sm_encrypt(sctx, card, apdu, &sm_apdu),
"Could not encrypt APDU");
SC_TEST_RET(card->ctx, sc_transmit_apdu(card, &sm_apdu),
"Could not transmit SM APDU");
if (sctx->post_transmit)
SC_TEST_RET(card->ctx, sctx->post_transmit(card, sctx, &sm_apdu),
"Could not complete SM specific post transmit routine");
SC_TEST_RET(card->ctx, sm_decrypt(sctx, card, &sm_apdu, apdu),
"Could not decrypt APDU");
return SC_SUCCESS;
}

1
ccid/src/sm.c Symbolic link
View File

@@ -0,0 +1 @@
../../npa/src/sm.c

1
npa/AUTHORS Normal file
View File

@@ -0,0 +1 @@
Frank Morgner <morgner@informatik.hu-berlin.de>

674
npa/COPYING Normal file
View File

@@ -0,0 +1,674 @@
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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of this license document, but changing it is not allowed.
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npa/ChangeLog Normal file
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@@ -0,0 +1,736 @@
2010-07-01 10:11 frankmorgner
* ChangeLog, configure.ac: releasing 0.3
2010-07-01 10:09 frankmorgner
* src/pace-tool.c, src/pace.h: - fixed unblock pin, it is now
successfully tested
2010-06-25 21:31 frankmorgner
* src/ccid.c, src/pace.c, src/pace.h: - Replaced references to
sc_get_pin* with its OpenSSL counter parts (untested)
- UI functionality and maybe more is no longer shipped in
opensc>=0.12. This
and the fact that linking against libopensc in general is
discouraged might
be a reason to abandon opensc in future releases.
2010-06-23 15:04 oepen
* patches/ccid-1.3.11.patch, patches/ccid-1.3.13.patch,
patches/pcsc-lite-1.5.5.patch, patches/pcsc-lite-1.6.1.patch:
-Fixed patches so bitbake can apply them
-Added patches to bitbake recipes
2010-06-23 12:20 frankmorgner
* src/ccid.c, src/usb.c: - better (or at least some) signal
handling
- always checking the existance of a card, when requested
2010-06-22 21:29 frankmorgner
* src/ccid.c, src/ccid.h, src/usb.c: - restructured handling of
interrupt thread to kill the thread along with all
the others
- fixed error on input parameter parsing when interrupt is
activated
- completed interrupt signaling for new/removed cards
2010-06-22 09:45 frankmorgner
* src/ccid.c, src/ccid.h, src/usb.c: forcing empty parameter list
with function(void) instead of unspecified parameter list with
function()
2010-06-21 16:17 frankmorgner
* src/ccid.c, src/pace.c, src/scutil.c, src/sm.c: - made debugging
of openssl errors human readable
- removed debugging of return values, added human readable
messages instead
2010-06-20 20:15 frankmorgner
* patches/ccid-1.3.13.patch, patches/pcsc-lite-1.6.1.patch: added
patches for newer versions of ccid and pcsc-lite
2010-06-20 19:52 frankmorgner
* patches, patches/ccid-1.3.11.patch,
patches/pcsc-lite-1.5.5.patch,
patches/pcsclite_trunk_r4993.patch, pcsclite_trunk.patch: added
patches for distribution packages of ccid and pcsc-lite
2010-06-19 18:27 frankmorgner
* src/pace-tool.c, src/pace.c: - pace-tool: fixed length of input
buffer for EstablishPACEChannel
- added debug messages to pace.c
2010-06-19 16:19 frankmorgner
* Makefile.am, pcsclite_trunk.patch, src/ccid-test.c, src/ccid.c,
src/ccid.h, src/pace-tool.c, src/pace.c, src/pace.h, src/usb.c: -
added patch to distribution package
- changed debug_sc_result to be a define. this now gets the line
of code correct
- added checking for input length to functions that parse the
bulkin buffer
- fixed segfault for GetReadersPACECapabilities when no card is
inserted
- added length checking of input for EstablishPACEChannel
- ccid-test: fixed pbSendBufferEstablish
- pcsclite_trunk.patch:
- fixed parsing of lengthCertificateDescription
- fixed wrong bPINOperation for pace capabilities and execute
pace
2010-06-18 21:20 frankmorgner
* pcsclite_trunk.patch, src/ccid-test.c, src/ccid.c: - renamed
Special PIN Verification/Capabilities to PACE
Verification/Capabilities
- fixed PIN PACE support in ccid descriptor
- using uint16_t instead of WORD in PACE structures
- fixed lengthInputData to host byteorder
- fixed parsing input buffer of SCardControl with
FEATURE_EXECUTE_PACE
- parsing input buffer for PACE verification and adjusting the
byteorder
- added 30s timeout to for PACE verification
- triggering PACE via PC/SC now works although quite unstable
2010-06-18 16:27 frankmorgner
* pcsclite_trunk.patch, src/ccid-test.c, src/ccid.c: -
ccid-emulator: propagating PACE capabilities to ccid descriptor
of
- ccid-test: IOCTL_FEATURE_IFD_PIN_PROPERTIES is currently
hardcoded and should
be replaced by the value from GET_FEATURE_REQUEST
- pcsclite_trunk.patch: fixed propagation of data from
SCardControl to
SecurePINSpecialVerify and SecurePINSpecialCapabilities
2010-06-17 20:54 frankmorgner
* configure.ac, src/Makefile.am, src/ccid-test.c: added ccid-test
to evaluate the PACE features of ccid-emulator (untested)
2010-06-16 21:06 frankmorgner
* configure.ac, pcsclite_trunk.patch, src/Makefile.am, src/ccid.c,
src/pace.c, src/sm.c, src/sm.h: added PACE features to
ccid-emulator (untested)
2010-06-10 11:14 frankmorgner
* src/pace-tool.c, src/pace.c: - implemented passing a CHAT to the
card.
- note that the type PACE_CHAT should be integrated into OpenPACE
- added parameters for passing CHAT and certificate description
to pace-tool
2010-06-09 15:45 frankmorgner
* configure.ac, src/Makefile.am: renamed ccid to ccid-emulator to
avoid conflicts with libccid
2010-06-09 15:28 frankmorgner
* Makefile.am, src/Makefile.am: added missing files for
distribution packages
2010-06-05 22:10 frankmorgner
* ChangeLog: updated checksums, install files for recipes. updated
log files for 0.6.1
2010-06-05 14:34 frankmorgner
* src/pace-tool.c, src/pace.c, src/pace.h, src/sm.c, src/sm.h: -
dropped pace_transmit_apdu in favour of a solution with
sm_transmit_apdu.
post_transmit and pre_transmit can be used to perform actions
before
encrypting/decrypting a sm apdu (such as incrementing the ssc for
pace).
- fixed ssc problems. encrypted communication with more than one
apdu (e.g.
resuming the pin) is now working.
- fixed uninitialized pointer in sm_decrypt
2010-06-04 21:34 frankmorgner
* src/sm.c: fixed uninitialized pointer which caused segfault on
decryption.
2010-06-04 19:05 frankmorgner
* src/pace.c: fixed segfault if ef.cardaccess is not readable
2010-06-03 22:17 frankmorgner
* src/sm.c: added error messages
2010-06-03 21:34 frankmorgner
* src/pace-tool.c: bugfix for conversion of hex to binary for
interactive mode
2010-06-02 13:16 frankmorgner
* README, src/pace-tool.c: added information about the environment
variables used
2010-06-02 11:39 frankmorgner
* src/pace-tool.c: pace-tool can now read secrets from environment
variables
2010-06-02 11:20 frankmorgner
* src/pace-tool.c: made pin puk can or mrz an optional command line
argument
2010-06-02 10:50 frankmorgner
* src/pace-tool.c: fixed precision of time measurement
2010-06-02 10:43 frankmorgner
* src/pace-tool.c: added time measurement for a PACE run
2010-06-01 17:44 frankmorgner
* src/pace-tool.c: establish pace channel and exit, when no further
commandline option is given
2010-06-01 14:52 frankmorgner
* src/pace-tool.c: - added switch to enable apdu translating
(disabled by default)
2010-05-26 20:32 frankmorgner
* src/pace-tool.c, src/pace.c, src/pace.h, src/sm.c: removed some
messages, when less verbose. fixed little endian problem when
parsing input buffer of EstablishPACEChannel.
2010-05-20 19:26 frankmorgner
* src/sm.c: fixed class byte generation for sm apdu
2010-05-20 18:26 frankmorgner
* src/pace-tool.c, src/pace.c, src/sm.c: - sm_transmit_apdu doesn't
check SWs anymore
- not throwing error for sw=63XX in mse:set at
2010-05-20 08:17 frankmorgner
* src/pace-tool.c, src/pace.c, src/pace.h, src/sm.c: - using short
apdus for mse:set at and generic authenticate. to make it work
with the sm implementation
- added parameter oldpacectx to EstablishPACEChannel to allow a a
new PACE connection inside an exitsting PACE connection (the
output buffer of the latter connection must be provided since it
stores the ef.cardaccess)
- added functionality to ask for the secret in
pace_reset_retry_counter
- added macro pace_change_pin
- SWs were stored at the wrong place of the output buffer from
EstablishPACEChannel, fixed.
- split up functionality of pace_test into multiple functions
- added new command line option to pace-tool to resume the pin.
resuming the pin is not working, yet.
2010-05-18 11:39 oepen
* src/pace.c: Changed EXPLICIT tagging of CHAT and auxiliary
authenticated data to IMPLICIT tagging
2010-05-16 18:53 frankmorgner
* src/pace-tool.c, src/pace.c, src/pace.h: - Added handling for
output buffer of EstablishPACEChannel, but CARs are still missing
- Handed over code for handling of IV and SSC for PACE to
OpenPACE
2010-05-08 18:36 frankmorgner
* configure.ac: added maintainer
2010-05-08 14:44 frankmorgner
* src/scutil.c, src/scutil.h, src/sm.c, src/sm.h: moved bin_log to
scutil
2010-05-08 07:19 frankmorgner
* README: updated informations about pace-tool
2010-05-07 21:27 frankmorgner
* configure.ac: corrected configure output
2010-05-07 19:03 frankmorgner
* INSTALL, configure.ac: removed unmodified file
2010-05-07 18:02 frankmorgner
* src/pace.c: added _essential_ missing file
2010-05-07 14:30 frankmorgner
* Makefile.am: added missing file
2010-05-07 11:50 frankmorgner
* ChangeLog, INSTALL, Makefile, NEWS, binutil.c, binutil.h, ccid.c,
ccid.h, configure.ac, m4, m4/Makefile.am, m4/acx_pthread.m4,
pace-tool.c, pace.c, pace.h, pace_lib.c, pace_lib.h, scutil.c,
scutil.h, sm.c, sm.h, src, src/Makefile.am, src/binutil.c,
src/binutil.h, src/ccid.c, src/ccid.h, src/pace-tool.c,
src/pace.h, src/pace_lib.c, src/pace_lib.h, src/scutil.c,
src/scutil.h, src/sm.c, src/sm.h, src/usb.c, src/usbstring.c,
src/usbstring.h, usb.c, usbstring.c, usbstring.h: fixed include
in pace.c. switched to autotools
2010-05-05 14:38 frankmorgner
* Makefile, binutil.c, binutil.h, ccid.c, pace-tool.c, scutil.c,
scutil.h, usb.c, util.c, util.h: split up utils into stuff for
program and sc handling
2010-05-04 21:01 frankmorgner
* pace-tool.c, pace.c, pace.h: cleaned up pace.c and moved
test_pace to pace-tool.c
2010-05-04 20:16 frankmorgner
* Makefile, pace-tool.c, pace.c: openpace is now a hard dependancy
for pace-tool. ccid does not yet depend on pace, since the USB
interface to pace is not yet defined.
2010-05-04 20:03 frankmorgner
* Makefile, ccid.c, ccid.h, pace-tool.c, pace.c, usb.c, util.c,
util.h: cleaned up command line options of pace-tool and made it
independant from ccid
2010-05-04 08:07 frankmorgner
* pace.c, sm.c: bugfix: initializing apdu in pace_gen_auth. bin_log
now checks input data.
2010-05-04 07:57 frankmorgner
* pace.c: changed length of read binary apdu to support acr 122
2010-05-03 19:52 frankmorgner
* Makefile, pace-tool.c, usb.c, util.c, util.h: put static pace
functionality into the new program pace-tool
2010-05-03 13:46 frankmorgner
* pace.c: the number of remaining retries is a warning from the
card, not a fatal error
2010-04-29 07:33 frankmorgner
* pace.c: using proper type for getline result
2010-04-28 13:14 frankmorgner
* ccid.c, ccid.h, pace.c, pace.h, usb.c: added support for changing
CAN and PIN for PACE
2010-04-27 20:02 frankmorgner
* INSTALL: updated instructions
2010-04-27 20:00 frankmorgner
* Makefile, ccid.c, pace.c, sm.c, usb.c: - sm will yield error when
the class byte indicates a sm apdu and pace will
simply transmit the apdu without encrypting/authenticating it.
- fixed building process when compiling without pace
2010-04-19 18:12 frankmorgner
* Makefile, ccid.c, ccid.h, usb.c: added option to select card
driver. beautified usage dialog.
2010-04-16 20:37 frankmorgner
* Makefile: improved build process
2010-04-16 18:18 frankmorgner
* usb.c: improved option parsing
2010-04-16 14:08 frankmorgner
* ccid.c, ccid.h, usb.c: added option to scan for available readers
2010-04-15 20:03 frankmorgner
* Makefile, pace.h, pace_lib.c, pace_lib.h: added header file for
pace library functions
2010-04-15 18:37 frankmorgner
* Makefile, README, apdu.c, apdu.h, pace.c, sm.c: - added
information about opensc
- using sc_transmit_apdu instead of my_transmit_apdu. fixing the
opensc error
is the better solution than implementing it twice (see
http://www.opensc-project.org/opensc/ticket/209)
2010-04-15 07:41 frankmorgner
* README: updated information
2010-04-15 07:37 frankmorgner
* README, ccid.c, ccid.h, pace.c, pace.h, sm.c, sm.h, usb.c: -
Fixed error when testing pace without card
- Testing pace allows now to choose the type of the secret (mrz,
pin, can, puk).
The secret can be given as commandline option or interactively.
- Cleaned prompt for getting the password
- Fixed error when inserting an empty password
- When PACE is successfully finished, APDUs for testing can be
given
interactively
2010-04-13 21:06 frankmorgner
* pace.c, pace.h, sm.c: - completed mac verification. sm with pace
is now fully functional.
- made pace_test more fault tolerant.
2010-04-12 21:22 frankmorgner
* pace.c, sm.c: - decryption of sm apdu now working. verification
of mac still missing.
2010-04-12 19:54 frankmorgner
* ccid.c, pace.c, sm.c, usb.c: fixed various memory leaks and
potential segfaults
2010-04-12 14:26 frankmorgner
* pace.c, pace.h, pace_lib.c: - protocol nid in pace_sm_ctx is not
needed any longer due to the changes of OpenPACE
2010-04-12 14:04 frankmorgner
* pace.c, sm.c: bugfixes:
- sm.c: fixed mac data padding, when sending sm apdu without
data.
- pace.c: for iv calculation ecb is used instead of cbc
- pace.c: fixed ssc incrementation
2010-04-12 12:09 frankmorgner
* pace.c, pace.h: - trying new apdu to reset retry counter in
pace_test
- added pace wrapper for sm_transmit_apdu which automatically
increments the ssc
2010-04-12 10:31 frankmorgner
* pace.c: added missing include
2010-04-12 07:34 frankmorgner
* pace.c: added code for reading cardsecurity
2010-04-12 07:23 frankmorgner
* sm.c: - reverted changes from last commit
2010-04-12 07:18 frankmorgner
* sm.c: - added more debugging
- bugfix: header of sm apdu is authenticated instead of the
original apdu
2010-04-11 21:06 frankmorgner
* pace.c: bugfix: fetching unhandled error in update_iv
2010-04-11 20:49 frankmorgner
* sm.c, sm.h: made bin_log more verbose
2010-04-11 20:31 frankmorgner
* pace.c, pace.h, pace_lib.c, sm.c: Bugfixes:
- ssc is a BIGNUM, since its size can be up to 16 bytes (not 16
bits as before)
- protected le is now encoded as octet string (not as unsigned
integer anymore)
- sc_format_asn1_entry was fet with wrong pointers (lebuf instead
of *lebuf
and formatted_data instead of *formatted_data
Added some debug output.
2010-04-10 20:39 frankmorgner
* sm.c, sm.h: made sm code independant from openssl
2010-04-10 18:16 frankmorgner
* ccid.c, pace.c, sm.c, sm.h: - pace.c: removed unused variable ssc
- pace.c: bugfix: don't increment ssc when resetting it.
- sm.c/.h: wrote wrapper sm_transmit_apdu
- sm.c: removed sm error handling, should be done by sc_check_sw
- sm.c/ccid.c/pace.c: added qualifier "static" to local functions
2010-04-10 17:00 frankmorgner
* pace.c, sm.c, sm.h: added sw checking for sm
2010-04-10 15:12 frankmorgner
* pace.c, sm.c: added missing return buffer for select of
CardSecurity
2010-04-10 14:53 frankmorgner
* pace.c, pace.h, sm.c: - sm.c (sm_encrypt) fixed header of sm apdu
- pace.c (EstablishPACEChannel) Fixed initialisation of
authentication_ctx.
(pace_test) Fixed usage of SC_TEST_RET and initialisation of
select apdu for
EF.CardSecurity.
2010-04-09 20:36 frankmorgner
* Makefile, apdu.h, ccid.c, ccid.h, pace.c, pace.h, pace_lib.c,
sm.c, sm.h, utils.c, utils.h: - Work in progress: Almost finished
(hopefully) flexible sm implementation
(untested). struct sm_ctx needs external cipher and
authentication
implementations. Here only routines for
encryption/decryption/authentication
with PACE are given.
2010-04-01 05:52 frankmorgner
* ccid.c, pace.c, pace.h, sm.h: integrated SM into pace
2010-03-31 21:58 frankmorgner
* sm.c, sm.h, utils.c, utils.h: - added untested function to
decrypt sm
- function cipher now always disables automatic padding
2010-03-29 19:53 frankmorgner
* Makefile, sm.c, sm.h, utils.c, utils.h: - Added an untested SM
implementation, currently only with encryption
- Added utils from OpenPACE
2010-03-22 14:42 frankmorgner
* pace.c: adapted latest changes of OpenPACE
2010-03-15 18:34 frankmorgner
* pace.c: bugfix: corrected types of fields from ASN1_INTEGER to
ASN1_OCTET_STRING
2010-03-15 15:01 frankmorgner
* pace.c: - adopted the latest changes of OpenPACE
- bugfix: created receive buffer before sending general
authenticate apdus
- added more debug output
2010-03-10 09:14 frankmorgner
* apdu.c, apdu.h: bugfix
2010-03-09 19:30 frankmorgner
* pace.c: using specifications from TR-03110 2.01 as default (as
done by test
cards)
2010-03-09 07:01 frankmorgner
* Makefile: bugfix: building with apdu.c apdu.h
2010-03-08 22:16 frankmorgner
* apdu.c, apdu.h, pace.c: - bugfix: general authenticate response
data is now encapsulated in a
dynamic data object
- added more debug messages
- bugfix: get_ef_card_access didn't fetch the whole file
- bugfix: set mse set at apdu type to case 3
- bugfix: only send the plain value (without tag/length) of the
PACE_MSE_SET_AT object
- bugfix: fixed general authenticate cla byte and set apdu type
to
case 4
- sanity checks in sc_transmit_apdu forbid the required apdu
format of
general authenticate so it had to be reimplemented in
my_transmit_apdu. apdu.c/apdu.h are mainly copied from opensc.
2010-03-05 22:35 frankmorgner
* pace.c, pace.h: - fixed includes
- fixed return value from pace_test if NO_PACE is defined
2010-03-05 09:53 frankmorgner
* ccid.c, ccid.h, pace.c, pace.h, usb.c: - pace-testing is not done
in threads anymore, program exits when test is finished
- bugfix in debug_ossl
- more generic aproach to select EF.CardAccess
- EF.CardAccess is read sequencially, to get a correct send
sequence counter
2010-03-01 16:22 frankmorgner
* ccid.c, ccid.h, pace.c, pace.h, usb.c: - bugfix: moved ASN.1
declaration of PACE-APDUs to pace.c
- added commandline-option to test PACE currently with hard coded
secret etc.
2010-02-28 18:58 frankmorgner
* INSTALL, Makefile, README, ccid.c, pace.c, pace.h: Added support
for Password Authenticated Connection Establishment (PACE) using
OpenPACE (http://sourceforge.net/projects/openpace/). Since it is
currently
untested, it is disabled by default.
2010-01-31 15:57 frankmorgner
* usb.c: - implemented option parsing with getopt_long
2010-01-31 01:47 frankmorgner
* ccid.c: - Some minor code improvements: catch and fix some rare
errors, taking more
usage of opensc debugging methods, removed not needed variables
and code
fragments
2010-01-30 11:52 frankmorgner
* ccid.c, usb.c: - fixed segmentation fault, ccid running stable
now again
2010-01-30 02:43 frankmorgner
* ccid.c: - switched to opensc's debugging function in log.h
- a segmentation fault of unknown origin crashes ccid after too
many
operations. last stable version is revision 29.
2010-01-30 00:04 frankmorgner
* ccid.c: - created detect_card_presence to avoid limitations of
sc_detect_card_presence
2010-01-29 18:04 frankmorgner
* ccid.c, ccid.h, usb.c: - added functions for simplified debugging
- changed functions to pass pointers instead of structs and using
realloc
instead of malloc to reduce memory overhead/usage
- changed functions to return opensc-errors to pass
printout-debugging to the
top level
- included functionality of get_RDR_to_PC_Parameters in
perform_PC_to_RDR_GetParamters
2010-01-24 07:13 frankmorgner
* ccid.c, ccid.h: added support for bNumberMessage
2010-01-23 22:45 frankmorgner
* ccid.c: added support for flags in bConfirmPIN
2010-01-23 22:10 frankmorgner
* ccid.c: added support for pin modification
2010-01-23 21:37 frankmorgner
* ccid.c, ccid.h, usb.c: - added defines for pin modification
- debugging apdu and rapdu there where they are created
- splitted pin block operations into several functions
2010-01-21 21:48 frankmorgner
* Makefile, ccid.c, ccid.h, usb.c: - switched from libpcsc to
libopensc. This brings some new features:
- Support for 4 slots per reader
- abstraction of user interface
- interactive pin verification
- BCD encoding of PIN
- Support for new readers (OpenCT)
- automatically skip to a reader with a card
- added defines
- changed interface of ccid_initialize
2010-01-14 22:29 frankmorgner
* ccid.c, ccid.h, usb.c: changed naming
2010-01-14 20:28 frankmorgner
* usb.c: removed not needed iso-identifier
2010-01-14 19:20 frankmorgner
* Makefile, ccid.c, ccid.h, usb.c: code split into multiple files,
added include guards
2010-01-12 10:06 frankmorgner
* ccid.h: perform_PC_to_RDR_Secure works, read actual PIN is still
missing
2010-01-10 23:09 frankmorgner
* ccid.h: added support for pinpad. doesn't work atm, somehow
abPINApdu is wrong.
2010-01-05 18:44 frankmorgner
* ccid.c, ccid.h: changed vendorid/productid, added new structures
for future PIN support.
2010-01-04 20:38 frankmorgner
* ccid.c: Cleaned up warnings.
2010-01-04 19:48 frankmorgner
* ccid.bb: Separated bitbake recipes. vscarchitecture.bb simply
collects the other recipes now.
2009-08-06 20:25 schertz123456
* ., AUTHORS, COPYING, INSTALL, Makefile, README, ccid.bb, ccid.c,
ccid.h, usbstring.c, usbstring.h: Initial commit.

10
npa/Doxyfile.in Normal file
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@@ -0,0 +1,10 @@
PROJECT_NAME = @PACKAGE_NAME@
PROJECT_NUMBER = @PACKAGE_VERSION@
OUTPUT_DIRECTORY = @builddir@/doc
STRIP_FROM_PATH = @top_srcdir@/src
INPUT = @top_srcdir@/src @top_srcdir@/README.dox
FILE_PATTERNS = *.c *.h
RECURSIVE = YES
EXAMPLE_PATH = @top_srcdir@/src
GENERATE_HTML = YES
GENERATE_TAGFILE = @builddir@/doc/$(PROJECT).tag

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ACLOCAL_AMFLAGS = -I m4
SUBDIRS = src m4
DISTCLEANFILES = Doxyfile libpace.pc
EXTRA_DIST = README.dox libpace.pc.in Doxyfile.in
do_subst = sed \
-e 's,[@]PACKAGE_NAME[@],$(PACKAGE_NAME),g' \
-e 's,[@]PACKAGE_VERSION[@],$(PACKAGE_VERSION),g' \
-e 's,[@]builddir[@],$(builddir),g' \
-e 's,[@]prefix[@],$(prefix),g' \
-e 's,[@]exec_prefix[@],$(exec_prefix),g' \
-e 's,[@]libdir[@],$(libdir),g' \
-e 's,[@]includedir[@],$(includedir),g' \
-e 's,[@]VERSION[@],$(VERSION),g' \
-e 's,[@]top_srcdir[@],$(top_srcdir),g'
if DOC_ENABLED
clean-local:
rm -rf doc
doc :
$(do_subst) < $(srcdir)/Doxyfile.in > Doxyfile
$(DOXYGEN) Doxyfile
.PHONY: doc
endif
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libpace.pc
libpace.pc :
$(do_subst) < $(srcdir)/libpace.pc.in > libpace.pc

0
npa/NEWS Normal file
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1
npa/README Symbolic link
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README.dox

72
npa/README.dox Normal file
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/** @mainpage
Welcome to ccid. The purpose of ccid is to forward a PCSC smartcard reader
as a standard USB CCID reader. If the host system is in USB device mode, ccid
forwards the local reader via USB to an other device. If in USB host mode,
ccid virtually plugges in a USB CCID reader to the host system.
ccid is implemented using GadgetFS. Some fragments of the source code is based
on the GadgetFS example at http://www.linux-usb.org/gadget/ and on the source
code of the OpenSC tools.
pace-tool has support for Password Authenticated Connection Establishment
(PACE) using OpenPACE (see http://sourceforge.net/projects/openpace/).
pace-tool can be used for PIN management or to encrypt APDUs inside a secure
messaging channel established with PACE. PACE is experimental and disabled by
default.
@section i INSTALLATION
See file INSTALL.
@subsection g HINTS ON GADGETFS
To create an USB Gadget in both USB host and USB client mode, you need to load
the kernel module gadgetfs. A guide focused on Debian based systems to run and
compile gadgetfs, you can find here:
http://wiki.openmoko.org/wiki/Building_Gadget_USB_Module
On OpenMoko it is likely, that you need to patch your kernel (see
http://docs.openmoko.org/trac/ticket/2206). If you also want to switch multiple
times between gadgetfs and g_ether an other patch is needed (see
https://docs.openmoko.org/trac/ticket/2240).
If you only use pace-tool for testing your card, you don't need gadgetfs.
@subsection o HINTS ON OPENSC
With PACE support enabled OpenSC older than r4244 will yield something like
this error:
[default] apdu.c:341:sc_check_apdu: Invalid Case 4 short APDU:
cse=04 cla=10 ins=86 p1=00 p2=00 lc=2 le=0
resp=0x10353c0 resplen=256 data=0x1034a30 datalen=2
[default] pace.c:1110:EstablishPACEChannel: Could not get encrypted nonce from card (General Authenticate step 1 failed).
It requires the following patch:
http://www.opensc-project.org/opensc/raw-attachment/ticket/209/le0.patch
The following patch makes the hex dumped output more readable:
http://www.opensc-project.org/opensc/raw-attachment/ticket/263/hex_dump_align.patch
@section u USAGE
When testing PACE with either PIN, CAN, MRZ or PUK run pace-tool. Here you can
enter APDUs which are to be converted according to the secure messaging
parameter and to be sent to the card. Herefor insert the APDU in hex (upper or
lower case) with a colon to separate the bytes or without it. Example APDUs can
be found in the file apdus.
To pass a secret to pace-tool, the command line parameters or the environment
variables PIN/CAN/MRZ/PUK/NEWPIN can be used. If none of these options is used,
pace-tool will show a password prompt.
@section q QUESTIONS
For questions, please use http://sourceforge.net/projects/vsmartcard/support
@author Frank Morgner <morgner@informatik.hu-berlin.de>
*/

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.63])
AC_INIT([libpace], [0.1], [http://sourceforge.net/projects/vsmartcard/support])
AC_CONFIG_SRCDIR([src/pace.c])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE
# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_LIBTOOL
AC_PROG_RANLIB
AM_PROG_CC_C_O
PKG_PROG_PKG_CONFIG
# Checks for libraries.
PKG_CHECK_EXISTS([libopensc],
[PKG_CHECK_MODULES([OPENSC], [libopensc])],
[AC_MSG_WARN([libopensc not found by pkg-config])])
PKG_CHECK_EXISTS([libssl],
[PKG_CHECK_MODULES([OPENSSL], [libssl])],
[AC_MSG_WARN([libssl not found by pkg-config])])
saved_CPPFLAGS="$CPPFLAGS"
saved_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $OPENSC_CFLAGS $OPENSSL_CFLAGS"
LIBS="$LDFLAGS $OPENSC_LIBS $OPENSSL_LIBS"
AC_CHECK_HEADERS(opensc/opensc.h,,
[ AC_MSG_ERROR([opensc/opensc.h not found, install libopensc or use ./configure OPENSC_CFLAGS=...]) ])
AC_MSG_CHECKING([for sc_context_create])
AC_TRY_LINK_FUNC(sc_context_create, [ AC_MSG_RESULT([yes]) ],
[ AC_MSG_ERROR([libopensc not found, use ./configure OPENSC_LIBS=...]) ])
AC_CHECK_HEADERS(openssl/evp.h, [], [ AC_MSG_ERROR([openssl/evp.h not found, install OpenSSL or use ./configure OPENSSL_CFLAGS=...]) ])
AC_MSG_CHECKING([for EVP_read_pw_string_min])
AC_TRY_LINK_FUNC(EVP_read_pw_string_min, [ AC_MSG_RESULT([yes]) ], [ AC_MSG_ERROR([OpenSSL not found, use ./configure OPENSSL_LIBS=...]) ])
AC_CHECK_HEADERS(openssl/pace.h, [], [ AC_MSG_ERROR([openssl/pace.h not found, install OpenPACE or use ./configure OPENSSL_CFLAGS=...]) ])
AC_MSG_CHECKING([for parse_ef_card_access])
AC_TRY_LINK_FUNC(parse_ef_card_access, [ AC_MSG_RESULT([yes]) ], [ AC_MSG_ERROR([OpenPACE not found, use ./configure OPENSSL_LIBS=...]) ])
CPPFLAGS="$saved_CPPFLAGS"
LIBS="$saved_LIBS"
AC_SUBST(OPENSSL_CFLAGS)
AC_SUBST(OPENSSL_LIBS)
AC_DEFINE(BUERGERCLIENT_WORKAROUND, 1, [Always get EF.CardAccess, when connecting to a smart card. This is a workaround for the recent Buergerclient])
# Documentation (default: no)
AC_ARG_ENABLE([doc],AS_HELP_STRING([--enable-doc],[Enable documentation generation.]),[enable_doc=$enableval],[enable_doc="no"])
if test x"$enable_doc" = "xyes"
then
AC_PATH_PROG([DOXYGEN], [doxygen])
if test x$DOXYGEN = x
then
AC_MSG_ERROR([doxygen is mandatory.])
fi
fi
AM_CONDITIONAL(DOC_ENABLED, [test x"$enable_doc" = xyes])
# Checks for header files.
AC_CHECK_HEADERS([arpa/inet.h fcntl.h memory.h stdint.h stdlib.h string.h sys/ioctl.h unistd.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT8_T
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_REALLOC
AC_CHECK_FUNCS([memmove memset strerror])
cat << EOF
${PACKAGE} has been configured with following options:
Version: ${PACKAGE_VERSION}
User binaries: $(eval eval eval echo "${bindir}")
Libraries: $(eval eval eval echo "${libdir}")
Configuration files: $(eval eval eval echo "${sysconfdir}")
Host: ${host}
Compiler: ${CC}
Preprocessor flags: ${CPPFLAGS}
Compiler flags: ${CFLAGS}
Preprocessor flags: ${CPPFLAGS}
Linker flags: ${LDFLAGS}
Libraries: ${LIBS}
OPENSC_CFLAGS: ${OPENSC_CFLAGS}
OPENSC_LIBS: ${OPENSC_LIBS}
OPENSSL_CFLAGS: ${OPENSSL_CFLAGS}
OPENSSL_LIBS: ${OPENSSL_LIBS}
Documentation: ${enable_doc}
EOF
AC_CONFIG_FILES([
Makefile
m4/Makefile
src/Makefile
])
AC_OUTPUT

0
ccid/libpace.pc.in → npa/libpace.pc.in
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3
npa/m4/Makefile.am Normal file
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@@ -0,0 +1,3 @@
# Process this file with automake to create Makefile.in
EXTRA_DIST = acx_pthread.m4

24
npa/src/Makefile.am Normal file
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@@ -0,0 +1,24 @@
AM_CPPFLAGS = -I$(top_srcdir)/src/pace -I$(top_builddir)/src/pace
libpace_la_SOURCES = sm.c scutil.c pace.c pace_lib.c
libpace_la_LIBADD = $(OPENSC_LIBS) $(OPENSSL_LIBS)
libpace_la_CFLAGS = $(OPENSC_CFLAGS) $(OPENSSL_CFLAGS)
pace_tool_SOURCES = pace-tool.c binutil.c
pace_tool_LDADD = $(OPENSC_LIBS) $(OPENSSL_LIBS) libpace.la
pace_tool_CFLAGS = $(OPENSC_CFLAGS) $(OPENSSL_CFLAGS)
noinst_HEADERS = \
binutil.h
flaw:
flawfinder -SQD *.h *.c
bin_PROGRAMS = pace-tool
lib_LTLIBRARIES = libpace.la
nobase_include_HEADERS = \
pace/sm.h \
pace/pace.h \
pace/scutil.h \
pace/pace_lib.h

1
npa/src/binutil.c Symbolic link
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@@ -0,0 +1 @@
../../ccid/src/binutil.c

1
npa/src/binutil.h Symbolic link
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@@ -0,0 +1 @@
../../ccid/src/binutil.h

0
ccid/src/pace-tool.c → npa/src/pace-tool.c
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0
ccid/src/pace.c → npa/src/pace.c
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0
ccid/src/pace/pace.h → npa/src/pace/pace.h
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0
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0
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0
ccid/src/pace/sm.h → npa/src/pace/sm.h
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0
ccid/src/pace_lib.c → npa/src/pace_lib.c
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267
npa/src/scutil.c Normal file
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@@ -0,0 +1,267 @@
/*
* Copyright (C) 2010 Frank Morgner
*
* This file is part of ccid.
*
* ccid 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.
*
* ccid 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
* ccid. If not, see <http://www.gnu.org/licenses/>.
*/
#include "scutil.h"
#include <stdio.h>
#include <string.h>
#include <opensc/log.h>
int initialize(int reader_id, const char *cdriver, int verbose,
sc_context_t **ctx, sc_reader_t **reader)
{
unsigned int i, reader_count;
if (!ctx || !reader)
return SC_ERROR_INVALID_ARGUMENTS;
int r = sc_context_create(ctx, NULL);
if (r < 0) {
printf("Failed to create initial context: %s", sc_strerror(r));
return r;
}
if (cdriver != NULL) {
r = sc_set_card_driver(*ctx, cdriver);
if (r < 0) {
sc_error(*ctx, "Card driver '%s' not found!\n", cdriver);
return r;
}
}
(*ctx)->debug = verbose;
reader_count = sc_ctx_get_reader_count(*ctx);
if (reader_count == 0)
return SC_ERROR_NO_READERS_FOUND;
if (reader_id < 0) {
/* Automatically try to skip to a reader with a card if reader not specified */
for (i = 0; i < reader_count; i++) {
*reader = sc_ctx_get_reader(*ctx, i);
if (sc_detect_card_presence(*reader, 0) & SC_SLOT_CARD_PRESENT) {
reader_id = i;
sc_debug(*ctx, "Using the first reader with a card: %s", (*reader)->name);
break;
}
}
if (reader_id >= reader_count) {
sc_debug(*ctx, "No card found, using the first reader.");
reader_id = 0;
}
}
if (reader_id >= reader_count)
return SC_ERROR_NO_READERS_FOUND;
*reader = sc_ctx_get_reader(*ctx, reader_id);
return SC_SUCCESS;
}
int build_apdu(sc_context_t *ctx, const u8 *buf, size_t len, sc_apdu_t *apdu)
{
const u8 *p;
size_t len0;
if (!buf || !apdu)
return SC_ERROR_INVALID_ARGUMENTS;
len0 = len;
if (len < 4) {
sc_error(ctx, "APDU too short (must be at least 4 bytes)");
return SC_ERROR_INVALID_DATA;
}
memset(apdu, 0, sizeof *apdu);
p = buf;
apdu->cla = *p++;
apdu->ins = *p++;
apdu->p1 = *p++;
apdu->p2 = *p++;
len -= 4;
if (!len) {
apdu->cse = SC_APDU_CASE_1;
} else {
if (*p == 0 && len >= 3) {
/* ...must be an extended APDU */
p++;
if (len == 3) {
apdu->le = (*p++)<<8;
apdu->le += *p++;
if (apdu->le == 0)
apdu->le = 0xffff+1;
len -= 3;
apdu->cse = SC_APDU_CASE_2_EXT;
} else {
/* len > 3 */
apdu->lc = (*p++)<<8;
apdu->lc += *p++;
len -= 3;
if (len < apdu->lc) {
sc_error(ctx, "APDU too short (need %lu more bytes)\n",
(unsigned long) apdu->lc - len);
return SC_ERROR_INVALID_DATA;
}
apdu->data = p;
apdu->datalen = apdu->lc;
len -= apdu->lc;
p += apdu->lc;
if (!len) {
apdu->cse = SC_APDU_CASE_3_EXT;
} else {
/* at this point the apdu has a Lc, so Le is on 2 bytes */
if (len < 2) {
sc_error(ctx, "APDU too short (need 2 more bytes)\n");
return SC_ERROR_INVALID_DATA;
}
apdu->le = (*p++)<<8;
apdu->le += *p++;
if (apdu->le == 0)
apdu->le = 0xffff+1;
len -= 2;
apdu->cse = SC_APDU_CASE_4_EXT;
}
}
} else {
/* ...must be a short APDU */
if (len == 1) {
apdu->le = *p++;
if (apdu->le == 0)
apdu->le = 0xff+1;
len--;
apdu->cse = SC_APDU_CASE_2_SHORT;
} else {
apdu->lc = *p++;
len--;
if (len < apdu->lc) {
sc_error(ctx, "APDU too short (need %lu more bytes)\n",
(unsigned long) apdu->lc - len);
return SC_ERROR_INVALID_DATA;
}
apdu->data = p;
apdu->datalen = apdu->lc;
len -= apdu->lc;
p += apdu->lc;
if (!len) {
apdu->cse = SC_APDU_CASE_3_SHORT;
} else {
apdu->le = *p++;
if (apdu->le == 0)
apdu->le = 0xff+1;
len--;
apdu->cse = SC_APDU_CASE_4_SHORT;
}
}
}
if (len) {
sc_error(ctx, "APDU too long (%lu bytes extra)\n",
(unsigned long) len);
return SC_ERROR_INVALID_DATA;
}
}
apdu->flags = SC_APDU_FLAGS_NO_GET_RESP|SC_APDU_FLAGS_NO_RETRY_WL;
sc_debug(ctx, "Case %d %s APDU, %lu bytes:\tins=%02x p1=%02x p2=%02x lc=%04x le=%04x",
apdu->cse & SC_APDU_SHORT_MASK,
(apdu->cse & SC_APDU_EXT) != 0 ? "extended" : "short",
(unsigned long) len0, apdu->ins, apdu->p1, apdu->p2, apdu->lc, apdu->le);
return SC_SUCCESS;
}
void _bin_log(sc_context_t *ctx, int type, const char *file, int line,
const char *func, const char *label, const u8 *data, size_t len,
FILE *f)
{
/* this is the maximum supported by sc_do_log_va */
/* Flawfinder: ignore */
char buf[1800];
if (data)
sc_hex_dump(ctx, data, len, buf, sizeof buf);
else
buf[0] = 0;
if (!f) {
sc_do_log(ctx, type, file, line, func,
"\n%s (%u byte%s):\n%s",
label, len, len==1?"":"s", buf);
} else {
fprintf(f, "%s (%u byte%s):\n%s",
label, len, len==1?"":"s", buf);
}
}
static int list_drivers(sc_context_t *ctx)
{
int i;
if (ctx->card_drivers[0] == NULL) {
printf("No card drivers installed!\n");
return 0;
}
printf("Configured card drivers:\n");
for (i = 0; ctx->card_drivers[i] != NULL; i++) {
printf(" %-16s %s\n", ctx->card_drivers[i]->short_name,
ctx->card_drivers[i]->name);
}
return 0;
}
static int list_readers(sc_context_t *ctx)
{
unsigned int i, rcount = sc_ctx_get_reader_count(ctx);
if (rcount == 0) {
printf("No smart card readers found.\n");
return 0;
}
printf("Readers known about:\n");
printf("Nr. Driver Name\n");
for (i = 0; i < rcount; i++) {
sc_reader_t *screader = sc_ctx_get_reader(ctx, i);
printf("%-7d%-11s%s\n", i, screader->driver->short_name,
screader->name);
}
return 0;
}
int print_avail(int verbose)
{
sc_context_t *ctx = NULL;
int r;
r = sc_context_create(&ctx, NULL);
if (r) {
fprintf(stderr, "Failed to establish context: %s\n", sc_strerror(r));
return 1;
}
ctx->debug = verbose;
r = list_readers(ctx)|list_drivers(ctx);
if (ctx)
sc_release_context(ctx);
return r;
}

622
npa/src/sm.c Normal file
View File

@@ -0,0 +1,622 @@
/*
* Copyright (C) 2010 Frank Morgner
*
* This file is part of ccid.
*
* ccid 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.
*
* ccid 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
* ccid. If not, see <http://www.gnu.org/licenses/>.
*/
#include "scutil.h"
#include "sm.h"
#include <arpa/inet.h>
#include <opensc/asn1.h>
#include <opensc/log.h>
#include <stdlib.h>
#include <string.h>
static const struct sc_asn1_entry c_sm_capdu[] = {
{ "Padding-content indicator followed by cryptogram",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x07, SC_ASN1_OPTIONAL, NULL, NULL },
{ "Protected Le",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x17, SC_ASN1_OPTIONAL, NULL, NULL },
{ "Cryptographic Checksum",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x0E, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL , 0 , 0 , 0 , NULL , NULL }
};
static const struct sc_asn1_entry c_sm_rapdu[] = {
{ "Padding-content indicator followed by cryptogram" ,
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x07, SC_ASN1_OPTIONAL, NULL, NULL },
{ "Processing Status",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x19, 0 , NULL, NULL },
{ "Cryptographic Checksum",
SC_ASN1_OCTET_STRING, SC_ASN1_CTX|0x0E, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static int
add_iso_pad(const u8 *data, size_t datalen, int block_size, u8 **padded)
{
u8 *p;
size_t p_len;
if (!padded)
return SC_ERROR_INVALID_ARGUMENTS;
/* calculate length of padded message */
p_len = (datalen / block_size) * block_size + block_size;
p = realloc(*padded, p_len);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
if (*padded != data)
/* Flawfinder: ignore */
memcpy(p, data, datalen);
*padded = p;
/* now add iso padding */
memset(p + datalen, 0x80, 1);
memset(p + datalen + 1, 0, p_len - datalen - 1);
return p_len;
}
static int
add_padding(const struct sm_ctx *ctx, const u8 *data, size_t datalen,
u8 **padded)
{
u8 *p;
switch (ctx->padding_indicator) {
case SM_NO_PADDING:
if (*padded != data) {
p = realloc(*padded, datalen);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
*padded = p;
/* Flawfinder: ignore */
memcpy(*padded, data, datalen);
}
return datalen;
case SM_ISO_PADDING:
return add_iso_pad(data, datalen, ctx->block_length, padded);
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
}
static int
no_padding(u8 padding_indicator, const u8 *data, size_t datalen)
{
if (!datalen || !data)
return SC_ERROR_INVALID_ARGUMENTS;
size_t len;
switch (padding_indicator) {
case SM_NO_PADDING:
len = datalen;
break;
case SM_ISO_PADDING:
len = datalen;
while (len) {
len--;
if (data[len])
break;
}
if (data[len] != 0x80)
return SC_ERROR_INVALID_DATA;
break;
default:
return SC_ERROR_NOT_SUPPORTED;
}
return len;
}
static int format_le(size_t le, struct sc_asn1_entry *le_entry,
u8 **lebuf, size_t *le_len)
{
u8 *p;
if (!lebuf || !le_len)
return SC_ERROR_INVALID_ARGUMENTS;
p = realloc(*lebuf, *le_len);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
switch (*le_len) {
case 1:
p[0] = le;
break;
case 2:
p[0] = htons(le) >> 8;
p[1] = htons(le) & 0xff;
break;
case 3:
p[0] = 0x00;
p[1] = htons(le) >> 8;
p[2] = htons(le) & 0xff;
break;
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
*lebuf = p;
sc_format_asn1_entry(le_entry, *lebuf, le_len, SC_ASN1_PRESENT);
return SC_SUCCESS;
}
static int prefix_buf(u8 prefix, u8 *buf, size_t buflen, u8 **cat)
{
u8 *p;
p = realloc(*cat, buflen + 1);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
if (*cat == buf) {
memmove(p + 1, p, buflen);
} else {
/* Flawfinder: ignore */
memcpy(p + 1, buf, buflen);
}
p[0] = prefix;
*cat = p;
return buflen + 1;
}
static int format_data(sc_card_t *card, const struct sm_ctx *ctx,
const u8 *data, size_t datalen,
struct sc_asn1_entry *formatted_encrypted_data_entry,
u8 **formatted_data, size_t *formatted_data_len)
{
int r;
u8 *pad_data = NULL;
size_t pad_data_len;
if (!ctx || !formatted_data || !formatted_data_len) {
r = SC_ERROR_INVALID_ARGUMENTS;
goto err;
}
r = add_padding(ctx, data, datalen, &pad_data);
if (r < 0) {
sc_error(card->ctx, "Could not add padding to data: %s",
sc_strerror(r));
goto err;
}
pad_data_len = r;
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Data to encrypt", pad_data, pad_data_len);
r = ctx->encrypt(card, ctx, pad_data, pad_data_len, formatted_data);
if (r < 0) {
sc_error(card->ctx, "Could not encrypt the data");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Cryptogram", *formatted_data, r);
r = prefix_buf(ctx->padding_indicator, *formatted_data, r, formatted_data);
if (r < 0) {
sc_error(card->ctx, "Could not prepend padding indicator to formatted "
"data: %s", sc_strerror(r));
goto err;
}
*formatted_data_len = r;
sc_format_asn1_entry(formatted_encrypted_data_entry,
*formatted_data, formatted_data_len, SC_ASN1_PRESENT);
r = SC_SUCCESS;
err:
if (pad_data) {
sc_mem_clear(pad_data, pad_data_len);
free(pad_data);
}
return r;
}
static int format_head(const struct sm_ctx *ctx, const sc_apdu_t *apdu,
u8 **formatted_head)
{
if (!apdu || !formatted_head)
return SC_ERROR_INVALID_ARGUMENTS;
u8 *p = realloc(*formatted_head, 4);
if (!p)
return SC_ERROR_OUT_OF_MEMORY;
p[0] = apdu->cla;
p[1] = apdu->ins;
p[2] = apdu->p1;
p[3] = apdu->p2;
*formatted_head = p;
return add_padding(ctx, *formatted_head, 4, formatted_head);
}
static int sm_encrypt(const struct sm_ctx *ctx, sc_card_t *card,
const sc_apdu_t *apdu, sc_apdu_t *sm_apdu)
{
struct sc_asn1_entry sm_capdu[4];
u8 *p, *le = NULL, *sm_data = NULL, *fdata = NULL, *mac_data = NULL,
*asn1 = NULL, *mac = NULL;
size_t sm_data_len, fdata_len, mac_data_len, asn1_len, mac_len, le_len;
int r;
if (!apdu || !ctx || !card || !card->slot || !sm_apdu) {
r = SC_ERROR_INVALID_ARGUMENTS;
goto err;
}
if ((apdu->cla & 0x0C) == 0x0C) {
r = SC_ERROR_INVALID_ARGUMENTS;
sc_error(card->ctx, "Given APDU is already protected with some secure messaging");
goto err;
}
sc_copy_asn1_entry(c_sm_capdu, sm_capdu);
sm_apdu->sensitive = 0;
sm_apdu->control = apdu->control;
sm_apdu->flags = apdu->flags;
sm_apdu->cla = apdu->cla|0x0C;
sm_apdu->ins = apdu->ins;
sm_apdu->p1 = apdu->p1;
sm_apdu->p2 = apdu->p2;
r = format_head(ctx, sm_apdu, &mac_data);
if (r < 0) {
sc_error(card->ctx, "Could not format header of SM apdu");
goto err;
}
mac_data_len = r;
/* get le and data depending on the case of the unsecure command */
switch (apdu->cse) {
case SC_APDU_CASE_1:
break;
case SC_APDU_CASE_2_SHORT:
le_len = 1;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
break;
case SC_APDU_CASE_2_EXT:
if (card->slot->active_protocol == SC_PROTO_T0) {
/* T0 extended APDUs look just like short APDUs */
le_len = 1;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
} else {
/* in case of T1 always use 3 bytes for length */
le_len = 3;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
break;
case SC_APDU_CASE_3_SHORT:
case SC_APDU_CASE_3_EXT:
r = format_data(card, ctx, apdu->data, apdu->datalen,
sm_capdu + 0, &fdata, &fdata_len);
if (r < 0) {
sc_error(card->ctx, "Could not format data of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Padding-content indicator followed by cryptogram (plain)",
fdata, fdata_len);
break;
case SC_APDU_CASE_4_SHORT:
/* in case of T0 no Le byte is added */
if (card->slot->active_protocol != SC_PROTO_T0) {
le_len = 1;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
}
r = format_data(card, ctx, apdu->data, apdu->datalen,
sm_capdu + 0, &fdata, &fdata_len);
if (r < 0) {
sc_error(card->ctx, "Could not format data of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Padding-content indicator followed by cryptogram (plain)",
fdata, fdata_len);
break;
case SC_APDU_CASE_4_EXT:
if (card->slot->active_protocol == SC_PROTO_T0) {
/* again a T0 extended case 4 APDU looks just
* like a short APDU, the additional data is
* transferred using ENVELOPE and GET RESPONSE */
} else {
/* only 2 bytes are use to specify the length of the
* expected data */
le_len = 2;
r = format_le(apdu->le, sm_capdu + 1, &le, &le_len);
if (r < 0) {
sc_error(card->ctx, "Could not format Le of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Protected Le (plain)", le, le_len);
}
r = format_data(card, ctx, apdu->data, apdu->datalen,
sm_capdu + 0, &fdata, &fdata_len);
if (r < 0) {
sc_error(card->ctx, "Could not format data of SM apdu");
goto err;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Padding-content indicator followed by cryptogram (plain)",
fdata, fdata_len);
break;
default:
sc_error(card->ctx, "Unhandled apdu case");
r = SC_ERROR_INVALID_DATA;
goto err;
}
r = sc_asn1_encode(card->ctx, sm_capdu, (u8 **) &asn1, &asn1_len);
if (r < 0) {
goto err;
}
if (asn1_len) {
p = realloc(mac_data, mac_data_len + asn1_len);
if (!p) {
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
mac_data = p;
/* Flawfinder: ignore */
memcpy(mac_data + mac_data_len, asn1, asn1_len);
mac_data_len += asn1_len;
r = add_padding(ctx, mac_data, mac_data_len, &mac_data);
if (r < 0) {
goto err;
}
mac_data_len = r;
}
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Data to authenticate", mac_data, mac_data_len);
r = ctx->authenticate(card, ctx, mac_data, mac_data_len,
&mac);
if (r < 0) {
sc_error(card->ctx, "Could not get authentication code");
goto err;
}
mac_len = r;
sc_format_asn1_entry(sm_capdu + 2, mac, &mac_len,
SC_ASN1_PRESENT);
if (card->ctx->debug > SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "Cryptographic Checksum (plain)", mac, mac_len);
/* format SM apdu */
r = sc_asn1_encode(card->ctx, sm_capdu, (u8 **) &sm_data, &sm_data_len);
if (r < 0)
goto err;
if (sm_apdu->datalen < sm_data_len) {
sc_error(card->ctx, "Data for SM APDU too long");
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
/* Flawfinder: ignore */
memcpy((u8 *) sm_apdu->data, sm_data, sm_data_len);
sm_apdu->datalen = sm_data_len;
sm_apdu->lc = sm_apdu->datalen;
sm_apdu->le = 0;
sm_apdu->cse = SC_APDU_CASE_4;
if (card->ctx->debug >= SC_LOG_TYPE_DEBUG)
bin_log(card->ctx, "ASN.1 encoded encrypted APDU data", sm_apdu->data, sm_apdu->datalen);
err:
if (fdata)
free(fdata);
if (asn1)
free(asn1);
if (mac_data)
free(mac_data);
if (mac)
free(mac);
if (le)
free(le);
if (sm_data)
free(sm_data);
return r;
}
static int sm_decrypt(const struct sm_ctx *ctx, sc_card_t *card,
const sc_apdu_t *sm_apdu, sc_apdu_t *apdu)
{
int r;
struct sc_asn1_entry sm_rapdu[4];
struct sc_asn1_entry my_sm_rapdu[4];
u8 sw[2], mac[8], fdata[SC_MAX_APDU_BUFFER_SIZE];
size_t sw_len = sizeof sw, mac_len = sizeof mac, fdata_len = sizeof fdata,
buf_len, asn1_len;
const u8 *buf;
u8 *data = NULL, *mac_data = NULL, *asn1 = NULL;
sc_copy_asn1_entry(c_sm_rapdu, sm_rapdu);
sc_format_asn1_entry(sm_rapdu + 0, fdata, &fdata_len, 0);
sc_format_asn1_entry(sm_rapdu + 1, sw, &sw_len, 0);
sc_format_asn1_entry(sm_rapdu + 2, mac, &mac_len, 0);
r = sc_asn1_decode(card->ctx, sm_rapdu, sm_apdu->resp, sm_apdu->resplen,
&buf, &buf_len);
if (r < 0)
goto err;
if (buf_len > 0) {
r = SC_ERROR_UNKNOWN_DATA_RECEIVED;
goto err;
}
if (sm_rapdu[2].flags & SC_ASN1_PRESENT) {
/* copy from sm_apdu to my_sm_apdu, but leave mac at default */
sc_copy_asn1_entry(sm_rapdu, my_sm_rapdu);
sc_copy_asn1_entry(&c_sm_rapdu[2], &my_sm_rapdu[2]);
r = sc_asn1_encode(card->ctx, my_sm_rapdu, &asn1, &asn1_len);
if (r < 0)
goto err;
r = add_padding(ctx, asn1, asn1_len, &mac_data);
if (r < 0) {
goto err;
}
r = ctx->verify_authentication(card, ctx, mac, mac_len,
mac_data, r);
if (r < 0)
goto err;
} else {
sc_error(card->ctx, "Cryptographic Checksum missing");
r = SC_ERROR_ASN1_OBJECT_NOT_FOUND;
goto err;
}
if (sm_rapdu[0].flags & SC_ASN1_PRESENT) {
if (ctx->padding_indicator != fdata[0]) {
r = SC_ERROR_UNKNOWN_DATA_RECEIVED;
goto err;
}
r = ctx->decrypt(card, ctx, fdata + 1, fdata_len - 1, &data);
if (r < 0)
goto err;
buf_len = r;
r = no_padding(ctx->padding_indicator, data, buf_len);
if (r < 0) {
sc_error(card->ctx, "Could not remove padding");
goto err;
}
if (apdu->resplen < r) {
sc_error(card->ctx, "Response of SM APDU too long");
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
/* Flawfinder: ignore */
memcpy(apdu->resp, data, r);
apdu->resplen = r;
} else {
apdu->resplen = 0;
}
if (sm_rapdu[1].flags & SC_ASN1_PRESENT) {
if (sw_len != 2) {
sc_error(card->ctx, "Length of processing status bytes must be 2");
r = SC_ERROR_ASN1_END_OF_CONTENTS;
goto err;
}
apdu->sw1 = sw[0];
apdu->sw2 = sw[1];
} else {
sc_error(card->ctx, "Authenticated status bytes are missing");
r = SC_ERROR_ASN1_OBJECT_NOT_FOUND;
goto err;
}
if (card->ctx->debug >= SC_LOG_TYPE_DEBUG) {
sc_debug(card->ctx, "Decrypted APDU sw1=%02x sw2=%02x",
apdu->sw1, apdu->sw2);
bin_log(card->ctx, "Decrypted APDU response data",
apdu->resp, apdu->resplen);
}
r = SC_SUCCESS;
err:
if (asn1) {
free(asn1);
}
if (mac_data) {
free(mac_data);
}
return r;
}
int sm_transmit_apdu(struct sm_ctx *sctx, sc_card_t *card,
sc_apdu_t *apdu)
{
sc_apdu_t sm_apdu;
u8 rbuf[0xffff], sbuf[0xffff];
sm_apdu.data = sbuf;
sm_apdu.datalen = sizeof sbuf;
sm_apdu.resp = rbuf;
sm_apdu.resplen = sizeof rbuf;
if (!sctx || !sctx->active) {
sc_debug(card->ctx, "Secure messaging disabled.");
return sc_transmit_apdu(card, apdu);
}
if ((apdu->cla & 0x0C) == 0x0C) {
sc_debug(card->ctx, "Given APDU is already protected with some secure messaging. Deactivating own SM context.");
sctx->active = 0;
return sc_transmit_apdu(card, apdu);
}
if (sctx->pre_transmit)
SC_TEST_RET(card->ctx, sctx->pre_transmit(card, sctx, apdu),
"Could not complete SM specific pre transmit routine");
SC_TEST_RET(card->ctx, sm_encrypt(sctx, card, apdu, &sm_apdu),
"Could not encrypt APDU");
SC_TEST_RET(card->ctx, sc_transmit_apdu(card, &sm_apdu),
"Could not transmit SM APDU");
if (sctx->post_transmit)
SC_TEST_RET(card->ctx, sctx->post_transmit(card, sctx, &sm_apdu),
"Could not complete SM specific post transmit routine");
SC_TEST_RET(card->ctx, sm_decrypt(sctx, card, &sm_apdu, apdu),
"Could not decrypt APDU");
return SC_SUCCESS;
}