/
pkcs15.c
2130 lines (1869 loc) · 62.4 KB
/
pkcs15.c
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/*
* pkcs15.c: PKCS #15 general functions
*
* Copyright (C) 2001, 2002 Juha Yrjölä <juha.yrjola@iki.fi>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include "internal.h"
#include "pkcs15.h"
#include "asn1.h"
static const struct sc_asn1_entry c_asn1_twlabel[] = {
{ "twlabel", SC_ASN1_UTF8STRING, SC_ASN1_TAG_UTF8STRING, 0, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static const struct sc_asn1_entry c_asn1_algorithm_info[7] = {
{ "reference", SC_ASN1_INTEGER, SC_ASN1_TAG_INTEGER, 0, NULL, NULL },
{ "algorithmPKCS#11", SC_ASN1_INTEGER, SC_ASN1_TAG_INTEGER, 0, NULL, NULL },
{ "parameters", SC_ASN1_NULL, SC_ASN1_TAG_NULL, 0, NULL, NULL },
{ "supportedOperations",SC_ASN1_BIT_FIELD, SC_ASN1_TAG_BIT_STRING, 0, NULL, NULL },
{ "objId", SC_ASN1_OBJECT, SC_ASN1_TAG_OBJECT, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algRef", SC_ASN1_INTEGER, SC_ASN1_TAG_INTEGER, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
/*
* in src/libopensc/types.h SC_MAX_SUPPORTED_ALGORITHMS defined as 8
*/
static const struct sc_asn1_entry c_asn1_supported_algorithms[SC_MAX_SUPPORTED_ALGORITHMS + 1] = {
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "algorithmInfo", SC_ASN1_STRUCT, SC_ASN1_TAG_SEQUENCE | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static const struct sc_asn1_entry c_asn1_toki[] = {
{ "version", SC_ASN1_INTEGER, SC_ASN1_TAG_INTEGER, 0, NULL, NULL },
{ "serialNumber", SC_ASN1_OCTET_STRING, SC_ASN1_TAG_OCTET_STRING, SC_ASN1_OPTIONAL, NULL, NULL },
{ "manufacturerID", SC_ASN1_UTF8STRING, SC_ASN1_TAG_UTF8STRING, SC_ASN1_OPTIONAL, NULL, NULL },
{ "label", SC_ASN1_UTF8STRING, SC_ASN1_CTX | 0, SC_ASN1_OPTIONAL, NULL, NULL },
/* XXX the Taiwanese ID card erroneously uses explicit tagging */
{ "label-tw", SC_ASN1_STRUCT, SC_ASN1_CTX | 0 | SC_ASN1_CONS, SC_ASN1_OPTIONAL, NULL, NULL },
{ "tokenflags", SC_ASN1_BIT_FIELD, SC_ASN1_TAG_BIT_STRING, 0, NULL, NULL },
{ "seInfo", SC_ASN1_SE_INFO, SC_ASN1_CONS | SC_ASN1_TAG_SEQUENCE, SC_ASN1_OPTIONAL, NULL, NULL },
{ "recordInfo", SC_ASN1_STRUCT, SC_ASN1_CONS | SC_ASN1_CTX | 1, SC_ASN1_OPTIONAL, NULL, NULL },
{ "supportedAlgorithms", SC_ASN1_STRUCT, SC_ASN1_CONS | SC_ASN1_CTX | 2, SC_ASN1_OPTIONAL, NULL, NULL },
{ "issuerId", SC_ASN1_UTF8STRING, SC_ASN1_CTX | 3, SC_ASN1_OPTIONAL, NULL, NULL },
{ "holderId", SC_ASN1_UTF8STRING, SC_ASN1_CTX | 4, SC_ASN1_OPTIONAL, NULL, NULL },
{ "lastUpdate", SC_ASN1_GENERALIZEDTIME, SC_ASN1_CTX | 5, SC_ASN1_OPTIONAL, NULL, NULL },
{ "preferredLanguage", SC_ASN1_PRINTABLESTRING, SC_ASN1_TAG_PRINTABLESTRING, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static const struct sc_asn1_entry c_asn1_tokeninfo[] = {
{ "TokenInfo", SC_ASN1_STRUCT, SC_ASN1_CONS | SC_ASN1_TAG_SEQUENCE, 0, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
int sc_pkcs15_parse_tokeninfo(sc_context_t *ctx,
sc_pkcs15_tokeninfo_t *ti, const u8 *buf, size_t blen)
{
int r;
size_t ii;
u8 serial[128];
size_t serial_len = sizeof(serial);
u8 mnfid[SC_PKCS15_MAX_LABEL_SIZE];
size_t mnfid_len = sizeof(mnfid);
u8 label[SC_PKCS15_MAX_LABEL_SIZE];
size_t label_len = sizeof(label);
u8 last_update[32];
size_t lupdate_len = sizeof(last_update) - 1;
size_t flags_len = sizeof(ti->flags);
struct sc_asn1_entry asn1_toki[14], asn1_tokeninfo[3], asn1_twlabel[3];
u8 preferred_language[3];
size_t lang_length = sizeof(preferred_language);
struct sc_asn1_entry asn1_supported_algorithms[SC_MAX_SUPPORTED_ALGORITHMS + 1],
asn1_algo_infos[SC_MAX_SUPPORTED_ALGORITHMS][7];
size_t reference_len = sizeof(ti->supported_algos[0].reference);
size_t mechanism_len = sizeof(ti->supported_algos[0].mechanism);
size_t operations_len = sizeof(ti->supported_algos[0].operations);
size_t algo_ref_len = sizeof(ti->supported_algos[0].algo_ref);
memset(last_update, 0, sizeof(last_update));
sc_copy_asn1_entry(c_asn1_twlabel, asn1_twlabel);
sc_copy_asn1_entry(c_asn1_toki, asn1_toki);
sc_copy_asn1_entry(c_asn1_tokeninfo, asn1_tokeninfo);
sc_format_asn1_entry(asn1_twlabel, label, &label_len, 0);
for (ii=0; ii<SC_MAX_SUPPORTED_ALGORITHMS; ii++)
sc_copy_asn1_entry(c_asn1_algorithm_info, asn1_algo_infos[ii]);
sc_copy_asn1_entry(c_asn1_supported_algorithms, asn1_supported_algorithms);
for (ii=0; ii<SC_MAX_SUPPORTED_ALGORITHMS; ii++) {
sc_format_asn1_entry(asn1_algo_infos[ii] + 0, &ti->supported_algos[ii].reference, &reference_len, 0);
sc_format_asn1_entry(asn1_algo_infos[ii] + 1, &ti->supported_algos[ii].mechanism, &mechanism_len, 0);
sc_format_asn1_entry(asn1_algo_infos[ii] + 2, NULL, NULL, 0);
sc_format_asn1_entry(asn1_algo_infos[ii] + 3, &ti->supported_algos[ii].operations, &operations_len, 0);
sc_format_asn1_entry(asn1_algo_infos[ii] + 4, &ti->supported_algos[ii].algo_id, NULL, 1);
sc_format_asn1_entry(asn1_algo_infos[ii] + 5, &ti->supported_algos[ii].algo_ref, &algo_ref_len, 0);
sc_format_asn1_entry(asn1_supported_algorithms + ii, asn1_algo_infos[ii], NULL, 0);
}
sc_format_asn1_entry(asn1_toki + 0, &ti->version, NULL, 0);
sc_format_asn1_entry(asn1_toki + 1, serial, &serial_len, 0);
sc_format_asn1_entry(asn1_toki + 2, mnfid, &mnfid_len, 0);
sc_format_asn1_entry(asn1_toki + 3, label, &label_len, 0);
sc_format_asn1_entry(asn1_toki + 4, asn1_twlabel, NULL, 0);
sc_format_asn1_entry(asn1_toki + 5, &ti->flags, &flags_len, 0);
sc_format_asn1_entry(asn1_toki + 6, &ti->seInfo, &ti->num_seInfo, 0);
sc_format_asn1_entry(asn1_toki + 7, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 8, asn1_supported_algorithms, NULL, 0);
sc_format_asn1_entry(asn1_toki + 9, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 10, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 11, last_update, &lupdate_len, 0);
sc_format_asn1_entry(asn1_toki + 12, preferred_language, &lang_length, 0);
sc_format_asn1_entry(asn1_tokeninfo, asn1_toki, NULL, 0);
r = sc_asn1_decode(ctx, asn1_tokeninfo, buf, blen, NULL, NULL);
if (r) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "ASN.1 parsing of EF(TokenInfo) failed: %s",
sc_strerror(r));
return r;
}
ti->serial_number = malloc(serial_len * 2 + 1);
if (ti->serial_number == NULL)
return SC_ERROR_OUT_OF_MEMORY;
ti->serial_number[0] = 0;
for (ii = 0; ii < serial_len; ii++) {
char byte[3];
sprintf(byte, "%02X", serial[ii]);
strcat(ti->serial_number, byte);
}
if (ti->manufacturer_id == NULL) {
if (asn1_toki[2].flags & SC_ASN1_PRESENT)
ti->manufacturer_id = strdup((char *) mnfid);
else
ti->manufacturer_id = strdup("(unknown)");
if (ti->manufacturer_id == NULL)
return SC_ERROR_OUT_OF_MEMORY;
}
if (ti->label == NULL) {
if (asn1_toki[3].flags & SC_ASN1_PRESENT ||
asn1_toki[4].flags & SC_ASN1_PRESENT)
ti->label = strdup((char *) label);
else
ti->label = strdup("(unknown)");
if (ti->label == NULL)
return SC_ERROR_OUT_OF_MEMORY;
}
if (asn1_toki[11].flags & SC_ASN1_PRESENT) {
ti->last_update = strdup((char *)last_update);
if (ti->last_update == NULL)
return SC_ERROR_OUT_OF_MEMORY;
}
if (asn1_toki[12].flags & SC_ASN1_PRESENT) {
preferred_language[2] = 0;
ti->preferred_language = strdup((char *)preferred_language);
if (ti->preferred_language == NULL)
return SC_ERROR_OUT_OF_MEMORY;
}
return SC_SUCCESS;
}
int sc_pkcs15_encode_tokeninfo(sc_context_t *ctx,
sc_pkcs15_tokeninfo_t *ti,
u8 **buf, size_t *buflen)
{
int r;
size_t serial_len, mnfid_len, label_len, flags_len, last_upd_len;
struct sc_asn1_entry asn1_toki[14], asn1_tokeninfo[2];
sc_copy_asn1_entry(c_asn1_toki, asn1_toki);
sc_copy_asn1_entry(c_asn1_tokeninfo, asn1_tokeninfo);
sc_format_asn1_entry(asn1_toki + 0, &ti->version, NULL, 1);
if (ti->serial_number != NULL) {
u8 serial[128];
serial_len = 0;
if (strlen(ti->serial_number)/2 > sizeof(serial))
return SC_ERROR_BUFFER_TOO_SMALL;
serial_len = sizeof(serial);
if (sc_hex_to_bin(ti->serial_number, serial, &serial_len) < 0)
return SC_ERROR_INVALID_ARGUMENTS;
sc_format_asn1_entry(asn1_toki + 1, serial, &serial_len, 1);
} else
sc_format_asn1_entry(asn1_toki + 1, NULL, NULL, 0);
if (ti->manufacturer_id != NULL) {
mnfid_len = strlen(ti->manufacturer_id);
sc_format_asn1_entry(asn1_toki + 2, ti->manufacturer_id, &mnfid_len, 1);
} else
sc_format_asn1_entry(asn1_toki + 2, NULL, NULL, 0);
if (ti->label != NULL) {
label_len = strlen(ti->label);
sc_format_asn1_entry(asn1_toki + 3, ti->label, &label_len, 1);
} else
sc_format_asn1_entry(asn1_toki + 3, NULL, NULL, 0);
if (ti->flags) {
flags_len = sizeof(ti->flags);
sc_format_asn1_entry(asn1_toki + 5, &ti->flags, &flags_len, 1);
} else
sc_format_asn1_entry(asn1_toki + 5, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 6, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 7, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 8, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 9, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 10, NULL, NULL, 0);
if (ti->last_update != NULL) {
last_upd_len = strlen(ti->last_update);
sc_format_asn1_entry(asn1_toki + 11, ti->last_update, &last_upd_len, 1);
} else
sc_format_asn1_entry(asn1_toki + 11, NULL, NULL, 0);
sc_format_asn1_entry(asn1_toki + 12, NULL, NULL, 0);
sc_format_asn1_entry(asn1_tokeninfo, asn1_toki, NULL, 1);
r = sc_asn1_encode(ctx, asn1_tokeninfo, buf, buflen);
if (r) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "sc_asn1_encode() failed: %s", sc_strerror(r));
return r;
}
return 0;
}
static const struct sc_asn1_entry c_asn1_ddo[] = {
{ "oid", SC_ASN1_OBJECT, SC_ASN1_TAG_OBJECT, SC_ASN1_OPTIONAL, NULL, NULL },
{ "odfPath", SC_ASN1_PATH, SC_ASN1_CONS | SC_ASN1_TAG_SEQUENCE, SC_ASN1_OPTIONAL, NULL, NULL },
{ "tokenInfoPath", SC_ASN1_PATH, SC_ASN1_CONS | SC_ASN1_CTX | 0, SC_ASN1_OPTIONAL, NULL, NULL },
{ "unusedPath", SC_ASN1_PATH, SC_ASN1_CONS | SC_ASN1_CTX | 1, SC_ASN1_OPTIONAL, NULL, NULL },
/* According to PKCS#15 v1.1 here is the place for the future extensions.
* The following data are used when ODF record points to the xDF files in a different application.
*/
{ "ddoIIN", SC_ASN1_OCTET_STRING, SC_ASN1_APP | 0x02, SC_ASN1_OPTIONAL, NULL, NULL },
{ "ddoAID", SC_ASN1_OCTET_STRING, SC_ASN1_APP | 0x0F, SC_ASN1_OPTIONAL, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static void fix_authentic_ddo(struct sc_pkcs15_card *p15card)
{
/* AuthentIC v3.2 card has invalid ODF and tokenInfo paths encoded into DDO.
* Cleanup this attributes -- default values must be OK.
*/
if (p15card->card->type == SC_CARD_TYPE_OBERTHUR_AUTHENTIC_3_2) {
if (p15card->file_odf != NULL) {
sc_file_free(p15card->file_odf);
p15card->file_odf = NULL;
}
if (p15card->file_tokeninfo != NULL) {
sc_file_free(p15card->file_tokeninfo);
p15card->file_tokeninfo = NULL;
}
}
}
static void fix_starcos_pkcs15_card(struct sc_pkcs15_card *p15card)
{
struct sc_context *ctx = p15card->card->ctx;
/* set special flags based on card meta data */
if (strcmp(p15card->card->driver->short_name,"cardos") == 0) {
/* D-Trust cards (D-TRUST, D-SIGN) */
if (strstr(p15card->tokeninfo->label,"D-TRUST") != NULL
|| strstr(p15card->tokeninfo->label,"D-SIGN") != NULL) {
/* D-TRUST Card 2.0 2cc (standard cards, which always add
* SHA1 prefix itself */
if (strstr(p15card->tokeninfo->label, "2cc") != NULL) {
p15card->card->caps |= SC_CARD_CAP_ONLY_RAW_HASH_STRIPPED;
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "D-TRUST 2cc card detected, only SHA1 works with this card");
/* XXX: add detection when other hash than SHA1 is used with
* such a card, as this produces invalid signatures.
*/
}
/* D-SIGN multicard 2.0 2ca (cards working with all types of hashes
* and no addition of prefix) */
else if (strstr(p15card->tokeninfo->label, "2ca") != NULL) {
p15card->card->caps |= SC_CARD_CAP_ONLY_RAW_HASH;
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "D-TRUST 2ca card detected");
}
/* XXX: probably there are more D-Trust card in the wild,
* which also need these flags to produce valid signatures
*/
}
}
}
static int parse_ddo(struct sc_pkcs15_card *p15card, const u8 * buf, size_t buflen)
{
struct sc_context *ctx = p15card->card->ctx;
struct sc_asn1_entry asn1_ddo[7];
sc_path_t odf_path, ti_path, us_path;
struct sc_iid iid;
struct sc_aid aid;
int r;
SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_NORMAL);
iid.len = sizeof(iid.value);
aid.len = sizeof(aid.value);
sc_copy_asn1_entry(c_asn1_ddo, asn1_ddo);
sc_format_asn1_entry(asn1_ddo + 1, &odf_path, NULL, 0);
sc_format_asn1_entry(asn1_ddo + 2, &ti_path, NULL, 0);
sc_format_asn1_entry(asn1_ddo + 3, &us_path, NULL, 0);
sc_format_asn1_entry(asn1_ddo + 4, iid.value, &iid.len, 0);
sc_format_asn1_entry(asn1_ddo + 5, aid.value, &aid.len, 0);
r = sc_asn1_decode(ctx, asn1_ddo, buf, buflen, NULL, NULL);
SC_TEST_RET(ctx, SC_LOG_DEBUG_NORMAL, r, "DDO parsing failed");
if (asn1_ddo[1].flags & SC_ASN1_PRESENT) {
p15card->file_odf = sc_file_new();
if (p15card->file_odf == NULL)
goto mem_err;
p15card->file_odf->path = odf_path;
}
if (asn1_ddo[2].flags & SC_ASN1_PRESENT) {
p15card->file_tokeninfo = sc_file_new();
if (p15card->file_tokeninfo == NULL)
goto mem_err;
p15card->file_tokeninfo->path = ti_path;
}
if (asn1_ddo[3].flags & SC_ASN1_PRESENT) {
p15card->file_unusedspace = sc_file_new();
if (p15card->file_unusedspace == NULL)
goto mem_err;
p15card->file_unusedspace->path = us_path;
}
if (asn1_ddo[4].flags & SC_ASN1_PRESENT) {
sc_debug(ctx, SC_LOG_DEBUG_ASN1, "DDO.IID '%s'", sc_dump_hex(iid.value, iid.len));
memcpy(&p15card->app->ddo.iid, &iid, sizeof(struct sc_iid));
}
if (asn1_ddo[5].flags & SC_ASN1_PRESENT) {
sc_debug(ctx, SC_LOG_DEBUG_ASN1, "DDO.AID '%s'", sc_dump_hex(aid.value, aid.len));
memcpy(&p15card->app->ddo.aid, &aid, sizeof(struct sc_aid));
}
fix_authentic_ddo(p15card);
SC_FUNC_RETURN(ctx, SC_LOG_DEBUG_VERBOSE, SC_SUCCESS);
mem_err:
if (p15card->file_odf != NULL) {
sc_file_free(p15card->file_odf);
p15card->file_odf = NULL;
}
if (p15card->file_tokeninfo != NULL) {
sc_file_free(p15card->file_tokeninfo);
p15card->file_tokeninfo = NULL;
}
if (p15card->file_unusedspace != NULL) {
sc_file_free(p15card->file_unusedspace);
p15card->file_unusedspace = NULL;
}
SC_FUNC_RETURN(ctx, SC_LOG_DEBUG_VERBOSE, SC_ERROR_OUT_OF_MEMORY);
}
#if 0
static int encode_ddo(struct sc_pkcs15_card *p15card, u8 **buf, size_t *buflen)
{
struct sc_asn1_entry asn1_ddo[5];
int r;
size_t label_len;
sc_copy_asn1_entry(c_asn1_ddo, asn1_ddo);
sc_format_asn1_entry(asn1_ddo + 1, &card->file_odf.path, NULL, 0);
sc_format_asn1_entry(asn1_ddo + 2, &card->file_tokeninfo.path, NULL, 0);
r = sc_asn1_encode(ctx, asn1_dir, buf, buflen);
if (r) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "sc_asn1_encode() failed: %s",
sc_strerror(r));
return r;
}
return 0;
}
#endif
static const struct sc_asn1_entry c_asn1_odf[] = {
{ "privateKeys", SC_ASN1_STRUCT, SC_ASN1_CTX | 0 | SC_ASN1_CONS, 0, NULL, NULL },
{ "publicKeys", SC_ASN1_STRUCT, SC_ASN1_CTX | 1 | SC_ASN1_CONS, 0, NULL, NULL },
{ "trustedPublicKeys", SC_ASN1_STRUCT, SC_ASN1_CTX | 2 | SC_ASN1_CONS, 0, NULL, NULL },
{ "secretKeys", SC_ASN1_STRUCT, SC_ASN1_CTX | 3 | SC_ASN1_CONS, 0, NULL, NULL },
{ "certificates", SC_ASN1_STRUCT, SC_ASN1_CTX | 4 | SC_ASN1_CONS, 0, NULL, NULL },
{ "trustedCertificates", SC_ASN1_STRUCT, SC_ASN1_CTX | 5 | SC_ASN1_CONS, 0, NULL, NULL },
{ "usefulCertificates", SC_ASN1_STRUCT, SC_ASN1_CTX | 6 | SC_ASN1_CONS, 0, NULL, NULL },
{ "dataObjects", SC_ASN1_STRUCT, SC_ASN1_CTX | 7 | SC_ASN1_CONS, 0, NULL, NULL },
{ "authObjects", SC_ASN1_STRUCT, SC_ASN1_CTX | 8 | SC_ASN1_CONS, 0, NULL, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
static const unsigned int odf_indexes[] = {
SC_PKCS15_PRKDF,
SC_PKCS15_PUKDF,
SC_PKCS15_PUKDF_TRUSTED,
SC_PKCS15_SKDF,
SC_PKCS15_CDF,
SC_PKCS15_CDF_TRUSTED,
SC_PKCS15_CDF_USEFUL,
SC_PKCS15_DODF,
SC_PKCS15_AODF,
};
static int parse_odf(const u8 * buf, size_t buflen, struct sc_pkcs15_card *p15card)
{
const u8 *p = buf;
size_t left = buflen;
int r, i, type;
sc_path_t path;
struct sc_asn1_entry asn1_obj_or_path[] = {
{ "path", SC_ASN1_PATH, SC_ASN1_CONS | SC_ASN1_SEQUENCE, 0, &path, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
struct sc_asn1_entry asn1_odf[10];
sc_copy_asn1_entry(c_asn1_odf, asn1_odf);
for (i = 0; asn1_odf[i].name != NULL; i++)
sc_format_asn1_entry(asn1_odf + i, asn1_obj_or_path, NULL, 0);
while (left > 0) {
r = sc_asn1_decode_choice(p15card->card->ctx, asn1_odf, p, left, &p, &left);
if (r == SC_ERROR_ASN1_END_OF_CONTENTS)
break;
if (r < 0)
return r;
type = r;
r = sc_pkcs15_make_absolute_path(&p15card->file_app->path, &path);
if (r < 0)
return r;
r = sc_pkcs15_add_df(p15card, odf_indexes[type], &path, NULL);
if (r)
return r;
}
return 0;
}
int sc_pkcs15_encode_odf(sc_context_t *ctx,
struct sc_pkcs15_card *p15card,
u8 **buf, size_t *buflen)
{
sc_path_t path;
struct sc_asn1_entry asn1_obj_or_path[] = {
{ "path", SC_ASN1_PATH, SC_ASN1_CONS | SC_ASN1_SEQUENCE, 0, &path, NULL },
{ NULL, 0, 0, 0, NULL, NULL }
};
struct sc_asn1_entry *asn1_paths = NULL;
struct sc_asn1_entry *asn1_odf = NULL;
int df_count = 0, r, c = 0;
const int nr_indexes = sizeof(odf_indexes)/sizeof(odf_indexes[0]);
struct sc_pkcs15_df *df;
df = p15card->df_list;
while (df != NULL) {
df_count++;
df = df->next;
};
if (df_count == 0) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "No DF's found.");
return SC_ERROR_OBJECT_NOT_FOUND;
}
asn1_odf = malloc(sizeof(struct sc_asn1_entry) * (df_count + 1));
if (asn1_odf == NULL) {
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
asn1_paths = malloc(sizeof(struct sc_asn1_entry) * (df_count * 2));
if (asn1_paths == NULL) {
r = SC_ERROR_OUT_OF_MEMORY;
goto err;
}
for (df = p15card->df_list; df != NULL; df = df->next) {
int j, type = -1;
for (j = 0; j < nr_indexes; j++)
if (odf_indexes[j] == df->type) {
type = j;
break;
}
if (type == -1) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "Unsupported DF type.");
continue;
}
asn1_odf[c] = c_asn1_odf[type];
sc_format_asn1_entry(asn1_odf + c, asn1_paths + 2*c, NULL, 1);
sc_copy_asn1_entry(asn1_obj_or_path, asn1_paths + 2*c);
sc_format_asn1_entry(asn1_paths + 2*c, &df->path, NULL, 1);
c++;
}
asn1_odf[c].name = NULL;
r = sc_asn1_encode(ctx, asn1_odf, buf, buflen);
err:
if (asn1_paths != NULL)
free(asn1_paths);
if (asn1_odf != NULL)
free(asn1_odf);
return r;
}
struct sc_pkcs15_card * sc_pkcs15_card_new(void)
{
struct sc_pkcs15_card *p15card;
p15card = calloc(1, sizeof(struct sc_pkcs15_card));
if (p15card == NULL)
return NULL;
p15card->tokeninfo = calloc(1, sizeof(struct sc_pkcs15_tokeninfo));
if (p15card->tokeninfo == NULL) {
free(p15card);
return NULL;
}
p15card->magic = SC_PKCS15_CARD_MAGIC;
return p15card;
}
void sc_pkcs15_card_free(struct sc_pkcs15_card *p15card)
{
size_t i;
if (p15card == NULL)
return;
assert(p15card->magic == SC_PKCS15_CARD_MAGIC);
if (p15card->ops.clear)
p15card->ops.clear(p15card);
while (p15card->obj_list) {
struct sc_pkcs15_object *obj = p15card->obj_list;
sc_pkcs15_remove_object(p15card, obj);
sc_pkcs15_free_object(obj);
}
while (p15card->df_list)
sc_pkcs15_remove_df(p15card, p15card->df_list);
while (p15card->unusedspace_list)
sc_pkcs15_remove_unusedspace(p15card, p15card->unusedspace_list);
p15card->unusedspace_read = 0;
if (p15card->file_app != NULL)
sc_file_free(p15card->file_app);
if (p15card->file_tokeninfo != NULL)
sc_file_free(p15card->file_tokeninfo);
if (p15card->file_odf != NULL)
sc_file_free(p15card->file_odf);
if (p15card->file_unusedspace != NULL)
sc_file_free(p15card->file_unusedspace);
p15card->magic = 0;
if (p15card->tokeninfo->label != NULL)
free(p15card->tokeninfo->label);
if (p15card->tokeninfo->serial_number != NULL)
free(p15card->tokeninfo->serial_number);
if (p15card->tokeninfo->manufacturer_id != NULL)
free(p15card->tokeninfo->manufacturer_id);
if (p15card->tokeninfo->last_update != NULL)
free(p15card->tokeninfo->last_update);
if (p15card->tokeninfo->preferred_language != NULL)
free(p15card->tokeninfo->preferred_language);
if (p15card->tokeninfo->seInfo != NULL) {
for (i = 0; i < p15card->tokeninfo->num_seInfo; i++)
free(p15card->tokeninfo->seInfo[i]);
free(p15card->tokeninfo->seInfo);
}
free(p15card->tokeninfo);
if (p15card->app) {
if (p15card->app->label)
free(p15card->app->label);
if (p15card->app->ddo.value)
free(p15card->app->ddo.value);
free(p15card->app);
}
free(p15card);
}
void sc_pkcs15_card_clear(sc_pkcs15_card_t *p15card)
{
if (p15card == NULL)
return;
if (p15card->ops.clear)
p15card->ops.clear(p15card);
p15card->flags = 0;
p15card->tokeninfo->version = 0;
p15card->tokeninfo->flags = 0;
while (p15card->obj_list) {
struct sc_pkcs15_object *obj = p15card->obj_list;
sc_pkcs15_remove_object(p15card, obj);
sc_pkcs15_free_object(obj);
}
p15card->obj_list = NULL;
while (p15card->df_list != NULL)
sc_pkcs15_remove_df(p15card, p15card->df_list);
p15card->df_list = NULL;
if (p15card->file_app != NULL) {
sc_file_free(p15card->file_app);
p15card->file_app = NULL;
}
if (p15card->file_tokeninfo != NULL) {
sc_file_free(p15card->file_tokeninfo);
p15card->file_tokeninfo = NULL;
}
if (p15card->file_odf != NULL) {
sc_file_free(p15card->file_odf);
p15card->file_odf = NULL;
}
if (p15card->file_unusedspace != NULL) {
sc_file_free(p15card->file_unusedspace);
p15card->file_unusedspace = NULL;
}
if (p15card->tokeninfo->label != NULL) {
free(p15card->tokeninfo->label);
p15card->tokeninfo->label = NULL;
}
if (p15card->tokeninfo->serial_number != NULL) {
free(p15card->tokeninfo->serial_number);
p15card->tokeninfo->serial_number = NULL;
}
if (p15card->tokeninfo->manufacturer_id != NULL) {
free(p15card->tokeninfo->manufacturer_id);
p15card->tokeninfo->manufacturer_id = NULL;
}
if (p15card->tokeninfo->last_update != NULL) {
free(p15card->tokeninfo->last_update);
p15card->tokeninfo->last_update = NULL;
}
if (p15card->tokeninfo->preferred_language != NULL) {
free(p15card->tokeninfo->preferred_language);
p15card->tokeninfo->preferred_language = NULL;
}
if (p15card->tokeninfo->seInfo != NULL) {
size_t i;
for (i = 0; i < p15card->tokeninfo->num_seInfo; i++)
free(p15card->tokeninfo->seInfo[i]);
free(p15card->tokeninfo->seInfo);
p15card->tokeninfo->seInfo = NULL;
p15card->tokeninfo->num_seInfo = 0;
}
}
struct sc_app_info * sc_find_app(struct sc_card *card, struct sc_aid *aid)
{
int ii;
if (card->app_count <= 0)
return NULL;
if (!aid || !aid->len)
return card->app[0];
for (ii=0; ii < card->app_count; ii++) {
if (card->app[ii]->aid.len != aid->len)
continue;
if (memcmp(card->app[ii]->aid.value, aid->value, aid->len))
continue;
return card->app[ii];
}
return NULL;
}
static struct sc_app_info *sc_dup_app_info(const struct sc_app_info *info)
{
struct sc_app_info *out = calloc(1, sizeof(struct sc_app_info));
if (!out)
return NULL;
memcpy(out, info, sizeof(struct sc_app_info));
if (info->label) {
out->label = strdup(info->label);
if (!out->label)
return NULL;
} else
out->label = NULL;
out->ddo.value = malloc(info->ddo.len);
if (!out->ddo.value)
return NULL;
memcpy(out->ddo.value, info->ddo.value, info->ddo.len);
return out;
}
static int sc_pkcs15_bind_internal(sc_pkcs15_card_t *p15card, struct sc_aid *aid)
{
sc_path_t tmppath;
sc_card_t *card = p15card->card;
sc_context_t *ctx = card->ctx;
sc_pkcs15_tokeninfo_t tokeninfo;
sc_pkcs15_df_t *df;
const sc_app_info_t *info = NULL;
unsigned char *buf = NULL;
size_t len;
int err, ok = 0;
SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_NORMAL);
/* Enumerate apps now */
if (card->app_count < 0) {
err = sc_enum_apps(card);
if (err != SC_ERROR_FILE_NOT_FOUND)
SC_TEST_RET(ctx, SC_LOG_DEBUG_NORMAL, err, "unable to enumerate apps");
}
p15card->file_app = sc_file_new();
if (p15card->file_app == NULL) {
err = SC_ERROR_OUT_OF_MEMORY;
goto end;
}
sc_format_path("3F005015", &p15card->file_app->path);
info = sc_find_app(card, aid);
if (info) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "bind to application('%s',aid:'%s')",
info->label, sc_dump_hex(info->aid.value, info->aid.len));
p15card->app = sc_dup_app_info(info);
if (!p15card->app) {
err = SC_ERROR_OUT_OF_MEMORY;
goto end;
}
if (info->path.len)
p15card->file_app->path = info->path;
if (info->ddo.value && info->ddo.len)
parse_ddo(p15card, info->ddo.value, info->ddo.len);
}
else if (aid) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "Application(aid:'%s') not found", sc_dump_hex(aid->value, aid->len));
err = SC_ERROR_INVALID_ARGUMENTS;
goto end;
}
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "application path '%s'", sc_print_path(&p15card->file_app->path));
/* Check if pkcs15 directory exists */
err = sc_select_file(card, &p15card->file_app->path, NULL);
/* If the above test failed on cards without EF(DIR),
* try to continue read ODF from 3F005031. -aet
*/
if ((err == SC_ERROR_FILE_NOT_FOUND) && (card->app_count < 1)) {
sc_format_path("3F00", &p15card->file_app->path);
err = SC_SUCCESS;
}
if (err < 0)
goto end;
if (p15card->file_odf == NULL) {
/* check if an ODF is present; we don't know yet whether we have a pkcs15 card */
sc_format_path("5031", &tmppath);
err = sc_pkcs15_make_absolute_path(&p15card->file_app->path, &tmppath);
if (err != SC_SUCCESS) {
sc_log(ctx, "Cannot make absolute path to EF(ODF); error:%i", err);
goto end;
}
sc_log(ctx, "absolute path to EF(ODF) %s", sc_print_path(&tmppath));
err = sc_select_file(card, &tmppath, &p15card->file_odf);
}
else {
tmppath = p15card->file_odf->path;
sc_file_free(p15card->file_odf);
p15card->file_odf = NULL;
err = sc_select_file(card, &tmppath, &p15card->file_odf);
}
if (err != SC_SUCCESS) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "EF(ODF) not found in '%s'", sc_print_path(&tmppath));
goto end;
}
len = p15card->file_odf->size;
if (!len) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "EF(ODF) is empty");
goto end;
}
buf = malloc(len);
if(buf == NULL)
return SC_ERROR_OUT_OF_MEMORY;
err = sc_read_binary(card, 0, buf, len, 0);
if (err < 0)
goto end;
if (err < 2) {
err = SC_ERROR_PKCS15_APP_NOT_FOUND;
goto end;
}
len = err;
if (parse_odf(buf, len, p15card)) {
err = SC_ERROR_PKCS15_APP_NOT_FOUND;
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "Unable to parse ODF");
goto end;
}
free(buf);
buf = NULL;
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "The following DFs were found:");
for (df = p15card->df_list; df; df = df->next)
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, " DF type %u, path %s, index %u, count %d",
df->type, sc_print_path(&df->path), df->path.index, df->path.count);
if (p15card->file_tokeninfo == NULL) {
sc_format_path("5032", &tmppath);
err = sc_pkcs15_make_absolute_path(&p15card->file_app->path, &tmppath);
if (err != SC_SUCCESS) {
sc_log(ctx, "Cannot make absolute path to EF(TokenInfo); error:%i", err);
goto end;
}
sc_log(ctx, "absolute path to EF(TokenInfo) %s", sc_print_path(&tmppath));
}
else {
tmppath = p15card->file_tokeninfo->path;
sc_file_free(p15card->file_tokeninfo);
p15card->file_tokeninfo = NULL;
}
err = sc_select_file(card, &tmppath, &p15card->file_tokeninfo);
if (err)
goto end;
if ((len = p15card->file_tokeninfo->size) == 0) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "EF(TokenInfo) is empty");
goto end;
}
buf = malloc(len);
if(buf == NULL)
return SC_ERROR_OUT_OF_MEMORY;
err = sc_read_binary(card, 0, buf, len, 0);
if (err < 0)
goto end;
if (err <= 2) {
err = SC_ERROR_PKCS15_APP_NOT_FOUND;
goto end;
}
memset(&tokeninfo, 0, sizeof(tokeninfo));
err = sc_pkcs15_parse_tokeninfo(ctx, &tokeninfo, buf, (size_t)err);
if (err != SC_SUCCESS)
goto end;
*(p15card->tokeninfo) = tokeninfo;
if (!p15card->tokeninfo->serial_number && card->serialnr.len) {
char *serial = calloc(1, card->serialnr.len*2 + 1);
size_t ii;
for(ii=0;ii<card->serialnr.len;ii++)
sprintf(serial + ii*2, "%02X", *(card->serialnr.value + ii));
p15card->tokeninfo->serial_number = serial;
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "p15card->tokeninfo->serial_number %s",
p15card->tokeninfo->serial_number);
}
ok = 1;
end:
if(buf != NULL)
free(buf);
if (!ok) {
sc_pkcs15_card_clear(p15card);
return err;
}
return SC_SUCCESS;
}
int sc_pkcs15_bind(sc_card_t *card, struct sc_aid *aid, struct sc_pkcs15_card **p15card_out)
{
struct sc_pkcs15_card *p15card = NULL;
sc_context_t *ctx = card->ctx;
scconf_block *conf_block = NULL;
int r, emu_first, enable_emu;
SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "application(aid:'%s')", aid ? sc_dump_hex(aid->value, aid->len) : "empty");
assert(p15card_out != NULL);
p15card = sc_pkcs15_card_new();
if (p15card == NULL)
SC_FUNC_RETURN(ctx, SC_LOG_DEBUG_NORMAL, SC_ERROR_OUT_OF_MEMORY);
p15card->card = card;
p15card->opts.use_file_cache = 0;
p15card->opts.use_pin_cache = 1;
p15card->opts.pin_cache_counter = 10;
conf_block = sc_get_conf_block(ctx, "framework", "pkcs15", 1);
if (conf_block) {
p15card->opts.use_file_cache = scconf_get_bool(conf_block, "use_file_caching", p15card->opts.use_file_cache);
p15card->opts.use_pin_cache = scconf_get_bool(conf_block, "use_pin_caching", p15card->opts.use_pin_cache);
p15card->opts.pin_cache_counter = scconf_get_int(conf_block, "pin_cache_counter", p15card->opts.pin_cache_counter);
}
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "PKCS#15 options: use_file_cache=%d use_pin_cache=%d pin_cache_counter=%d",
p15card->opts.use_file_cache, p15card->opts.use_pin_cache, p15card->opts.pin_cache_counter);
r = sc_lock(card);
if (r) {
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "sc_lock() failed: %s", sc_strerror(r));
sc_pkcs15_card_free(p15card);
SC_FUNC_RETURN(ctx, SC_LOG_DEBUG_NORMAL, r);
}
enable_emu = scconf_get_bool(conf_block, "enable_pkcs15_emulation", 1);
if (enable_emu) {
emu_first = scconf_get_bool(conf_block, "try_emulation_first", 0);
if (emu_first || sc_pkcs15_is_emulation_only(card)) {
r = sc_pkcs15_bind_synthetic(p15card);
if (r == SC_SUCCESS)
goto done;
r = sc_pkcs15_bind_internal(p15card, aid);
if (r < 0)
goto error;
} else {
r = sc_pkcs15_bind_internal(p15card, aid);
if (r == SC_SUCCESS)
goto done;
r = sc_pkcs15_bind_synthetic(p15card);
if (r < 0)
goto error;
}
} else {
r = sc_pkcs15_bind_internal(p15card, aid);
if (r < 0)
goto error;
}
done:
fix_starcos_pkcs15_card(p15card);
*p15card_out = p15card;
sc_unlock(card);
SC_FUNC_RETURN(ctx, SC_LOG_DEBUG_NORMAL, SC_SUCCESS);
error:
sc_unlock(card);
sc_pkcs15_card_free(p15card);
SC_FUNC_RETURN(ctx, SC_LOG_DEBUG_NORMAL, r);
}
int sc_pkcs15_unbind(struct sc_pkcs15_card *p15card)
{
assert(p15card != NULL && p15card->magic == SC_PKCS15_CARD_MAGIC);
SC_FUNC_CALLED(p15card->card->ctx, SC_LOG_DEBUG_VERBOSE);
if (p15card->dll_handle)
sc_dlclose(p15card->dll_handle);
sc_pkcs15_pincache_clear(p15card);
sc_pkcs15_card_free(p15card);
return 0;
}
static int
__sc_pkcs15_search_objects(sc_pkcs15_card_t *p15card,
unsigned int class_mask, unsigned int type,
int (*func)(sc_pkcs15_object_t *, void *),
void *func_arg,
sc_pkcs15_object_t **ret, size_t ret_size)
{
struct sc_context *ctx = p15card->card->ctx;
sc_pkcs15_object_t *obj;
sc_pkcs15_df_t *df;
unsigned int df_mask = 0;
size_t match_count = 0;
int r = 0;
sc_debug(ctx, SC_LOG_DEBUG_NORMAL, "called; class=0x%02X, type=0x%03X", class_mask, type);
if (type)
class_mask |= SC_PKCS15_TYPE_TO_CLASS(type);
/* Make sure the class mask we have makes sense */
if (class_mask == 0
|| (class_mask & ~(SC_PKCS15_SEARCH_CLASS_PRKEY |
SC_PKCS15_SEARCH_CLASS_PUBKEY |
SC_PKCS15_SEARCH_CLASS_CERT |