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framework-pkcs15.c
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framework-pkcs15.c
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/*
* framework-pkcs15.c: PKCS#15 framework and related objects
*
* Copyright (C) 2002 Timo Teräs <timo.teras@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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "common/constant-time.h"
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "libopensc/log.h"
#include "libopensc/internal.h"
#include "libopensc/asn1.h"
#include "libopensc/cardctl.h"
#include "ui/notify.h"
#include "common/compat_strnlen.h"
#ifdef ENABLE_OPENSSL
#include <openssl/sha.h>
#include <openssl/crypto.h>
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
#include <openssl/evp.h>
#endif
#else
#define SHA_DIGEST_LENGTH 20
#endif
#include "sc-pkcs11.h"
#ifdef USE_PKCS15_INIT
#include "pkcs15init/pkcs15-init.h"
#endif
struct pkcs15_slot_data {
struct sc_pkcs15_object *auth_obj;
};
#define slot_data(p) ((struct pkcs15_slot_data *) (p))
#define slot_data_auth(p) (((p) && slot_data(p)) ? slot_data(p)->auth_obj : NULL)
#define slot_data_auth_info(p) (((p) && slot_data_auth(p))? \
(struct sc_pkcs15_auth_info *) slot_data_auth(p)->data : NULL)
#define check_attribute_buffer(attr,size) \
if (attr->pValue == NULL_PTR) { \
attr->ulValueLen = size; \
return CKR_OK; \
} \
if (attr->ulValueLen < size) { \
attr->ulValueLen = size; \
return CKR_BUFFER_TOO_SMALL; \
} \
attr->ulValueLen = size;
#define MAX_OBJECTS 128
struct pkcs15_fw_data {
struct sc_pkcs15_card * p15_card;
struct pkcs15_any_object * objects[MAX_OBJECTS];
unsigned int num_objects;
unsigned int locked;
unsigned char *user_puk;
unsigned int user_puk_len;
};
struct pkcs15_any_object {
struct sc_pkcs11_object base;
unsigned int refcount;
size_t size;
struct sc_pkcs15_object * p15_object;
struct pkcs15_pubkey_object * related_pubkey;
struct pkcs15_cert_object * related_cert;
struct pkcs15_prkey_object * related_privkey;
};
struct pkcs15_cert_object {
struct pkcs15_any_object base;
struct sc_pkcs15_cert_info * cert_info;
struct sc_pkcs15_cert * cert_data;
};
#define cert_flags base.base.flags
#define cert_p15obj base.p15_object
#define cert_pubkey base.related_pubkey
#define cert_issuer base.related_cert
#define cert_prvkey base.related_privkey
struct pkcs15_prkey_object {
struct pkcs15_any_object base;
struct sc_pkcs15_prkey_info * prv_info;
struct sc_pkcs15_pubkey * pub_data;
};
#define prv_flags base.base.flags
#define prv_p15obj base.p15_object
#define prv_pubkey base.related_pubkey
#define prv_next base.related_privkey
struct pkcs15_pubkey_object {
struct pkcs15_any_object base;
struct sc_pkcs15_pubkey_info * pub_info; /* NULL for key extracted from cert */
struct sc_pkcs15_pubkey * pub_data;
};
#define pub_flags base.base.flags
#define pub_p15obj base.p15_object
#define pub_genfrom base.related_cert
#define __p15_type(obj) (((obj) && (obj)->p15_object)? ((obj)->p15_object->type) : (unsigned int)-1)
#define is_privkey(obj) ((__p15_type(obj) & SC_PKCS15_TYPE_CLASS_MASK) == SC_PKCS15_TYPE_PRKEY)
#define is_pubkey(obj) ((__p15_type(obj) & SC_PKCS15_TYPE_CLASS_MASK) == SC_PKCS15_TYPE_PUBKEY)
#define is_cert(obj) (__p15_type(obj) == SC_PKCS15_TYPE_CERT_X509)
struct pkcs15_data_object {
struct pkcs15_any_object base;
struct sc_pkcs15_data_info *info;
struct sc_pkcs15_data *value;
};
#define data_flags base.base.flags
#define data_p15obj base.p15_object
#define is_data(obj) (__p15_type(obj) == SC_PKCS15_TYPE_DATA_OBJECT)
struct pkcs15_profile_object {
struct pkcs15_any_object base;
unsigned long profile_id;
};
struct pkcs15_skey_object {
struct pkcs15_any_object base;
struct sc_pkcs15_skey_info *info;
struct sc_pkcs15_skey *valueXXXX;
};
#define is_skey(obj) ((__p15_type(obj) & SC_PKCS15_TYPE_CLASS_MASK) == SC_PKCS15_TYPE_SKEY)
#define skey_flags base.base.flags
#define skey_p15obj base.p15_object
extern struct sc_pkcs11_object_ops pkcs15_cert_ops;
extern struct sc_pkcs11_object_ops pkcs15_prkey_ops;
extern struct sc_pkcs11_object_ops pkcs15_pubkey_ops;
extern struct sc_pkcs11_object_ops pkcs15_dobj_ops;
extern struct sc_pkcs11_object_ops pkcs15_profile_ops;
extern struct sc_pkcs11_object_ops pkcs15_skey_ops;
const CK_BYTE gostr3410_paramset_A_encoded_oid[] = { 0x06, 0x07, 0x2a, 0x85, 0x03, 0x02, 0x02, 0x23, 0x01 };
const unsigned int gostr3410_paramset_A_oid[] = {1, 2, 643, 2, 2, 35, 1, (unsigned int)-1};
const CK_BYTE gostr3410_paramset_B_encoded_oid[] = { 0x06, 0x07, 0x2a, 0x85, 0x03, 0x02, 0x02, 0x23, 0x02 };
const unsigned int gostr3410_paramset_B_oid[] = {1, 2, 643, 2, 2, 35, 2, (unsigned int)-1};
const CK_BYTE gostr3410_paramset_C_encoded_oid[] = { 0x06, 0x07, 0x2a, 0x85, 0x03, 0x02, 0x02, 0x23, 0x03 };
const unsigned int gostr3410_paramset_C_oid[] = {1, 2, 643, 2, 2, 35, 3, (unsigned int)-1};
static const struct {
const CK_BYTE *encoded_oid;
const unsigned int encoded_oid_size;
const unsigned int *oid;
const unsigned int oid_size;
unsigned char oid_id;
} gostr3410_param_oid [] = {
{ &gostr3410_paramset_A_encoded_oid[0],
sizeof(gostr3410_paramset_A_encoded_oid),
&gostr3410_paramset_A_oid[0],
sizeof(gostr3410_paramset_A_oid),
SC_PKCS15_PARAMSET_GOSTR3410_A },
{ &gostr3410_paramset_B_encoded_oid[0],
sizeof(gostr3410_paramset_B_encoded_oid),
&gostr3410_paramset_B_oid[0],
sizeof(gostr3410_paramset_B_oid),
SC_PKCS15_PARAMSET_GOSTR3410_B },
{ &gostr3410_paramset_C_encoded_oid[0],
sizeof(gostr3410_paramset_C_encoded_oid),
&gostr3410_paramset_C_oid[0],
sizeof(gostr3410_paramset_C_oid),
SC_PKCS15_PARAMSET_GOSTR3410_C }
};
const CK_BYTE gostr3411_94_cryptopro_paramset_encoded_oid[] = { 0x06, 0x07, 0x2a, 0x85, 0x03, 0x02, 0x02, 0x1e, 0x01 };
const unsigned int gostr3411_94_cryptopro_paramset_oid[] = {1, 2, 643, 2, 2, 30, 1, (unsigned int)-1};
#ifdef USE_PKCS15_INIT
static const struct {
const CK_BYTE *encoded_oid;
const unsigned int encoded_oid_size;
const unsigned int *oid;
const unsigned int oid_size;
} gostr3410_hash_param_oid [] = {
{ &gostr3411_94_cryptopro_paramset_encoded_oid[0],
sizeof(gostr3411_94_cryptopro_paramset_encoded_oid),
&gostr3411_94_cryptopro_paramset_oid[0],
sizeof(gostr3411_94_cryptopro_paramset_oid)}
};
#endif
static int __pkcs15_release_object(struct pkcs15_any_object *);
static CK_RV register_mechanisms(struct sc_pkcs11_card *p11card);
static CK_RV get_public_exponent(struct sc_pkcs15_pubkey *,
CK_ATTRIBUTE_PTR);
static CK_RV get_modulus(struct sc_pkcs15_pubkey *,
CK_ATTRIBUTE_PTR);
static CK_RV get_modulus_bits(struct sc_pkcs15_pubkey *,
CK_ATTRIBUTE_PTR);
static CK_RV get_usage_bit(unsigned int usage, CK_ATTRIBUTE_PTR attr);
static CK_RV get_gostr3410_params(const u8 *, size_t, CK_ATTRIBUTE_PTR);
static CK_RV get_ec_pubkey_point(struct sc_pkcs15_pubkey *, CK_ATTRIBUTE_PTR);
static CK_RV get_ec_pubkey_params(struct sc_pkcs15_pubkey *, CK_ATTRIBUTE_PTR);
static int lock_card(struct pkcs15_fw_data *);
static int unlock_card(struct pkcs15_fw_data *);
#ifdef USE_PKCS15_INIT
static CK_RV set_gost3410_params(struct sc_pkcs15init_prkeyargs *,
struct sc_pkcs15init_pubkeyargs *,
CK_ATTRIBUTE_PTR, CK_ULONG, CK_ATTRIBUTE_PTR, CK_ULONG);
static CK_RV pkcs15_create_slot(struct sc_pkcs11_card *p11card, struct pkcs15_fw_data *fw_data,
struct sc_pkcs15_object *auth, struct sc_app_info *app,
struct sc_pkcs11_slot **out);
static int pkcs11_get_pin_callback(struct sc_profile *profile, int id,
const struct sc_pkcs15_auth_info *info, const char *label,
unsigned char *pinbuf, size_t *pinsize);
static struct sc_pkcs15init_callbacks pkcs15init_callbacks = {
pkcs11_get_pin_callback, /* get_pin() */
NULL
};
static char *pkcs15init_sopin = NULL;
static size_t pkcs15init_sopin_len = 0;
static int pkcs11_get_pin_callback(struct sc_profile *profile, int id,
const struct sc_pkcs15_auth_info *info, const char *label,
unsigned char *pinbuf, size_t *pinsize)
{
char *secret = NULL;
size_t len = 0;
if (info->auth_type != SC_PKCS15_PIN_AUTH_TYPE_PIN)
return SC_ERROR_NOT_SUPPORTED;
sc_log(context, "pkcs11_get_pin_callback() auth-method %X", info->auth_method);
if (info->auth_method == SC_AC_CHV) {
unsigned int flags = info->attrs.pin.flags;
sc_log(context, "pkcs11_get_pin_callback() PIN flags %X", flags);
if ((flags & SC_PKCS15_PIN_FLAG_SO_PIN) && !(flags & SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN)) {
if (pkcs15init_sopin_len)
secret = pkcs15init_sopin;
}
}
if (secret)
len = strlen(secret);
sc_log(context, "pkcs11_get_pin_callback() secret '%s'", secret ? secret : "<null>");
if (!secret)
return SC_ERROR_OBJECT_NOT_FOUND;
if (len > *pinsize)
return SC_ERROR_BUFFER_TOO_SMALL;
memcpy(pinbuf, secret, len + 1);
*pinsize = len;
return 0;
}
#endif
/* Returns FW data corresponding to the given application or,
* if application info is not supplied, returns first available FW data. */
static struct pkcs15_fw_data *
get_fw_data(struct sc_pkcs11_card *p11card, struct sc_app_info *app_info, int *out_idx)
{
struct pkcs15_fw_data *out = NULL;
int idx;
if (!p11card)
return NULL;
for (idx=0; p11card && idx < SC_PKCS11_FRAMEWORK_DATA_MAX_NUM; idx++) {
struct pkcs15_fw_data *fw_data = (struct pkcs15_fw_data *) p11card->fws_data[idx];
struct sc_file *file_app = NULL;
if (!fw_data || !fw_data->p15_card)
continue;
file_app = fw_data->p15_card->file_app;
if (app_info && file_app) {
if (file_app->path.len != app_info->path.len)
continue;
if (file_app->path.aid.len != app_info->path.aid.len)
continue;
if (memcmp(file_app->path.aid.value, app_info->path.aid.value, app_info->path.aid.len))
continue;
if (memcmp(file_app->path.value, app_info->path.value, app_info->path.len))
continue;
}
out = fw_data;
if (out_idx)
*out_idx = idx;
break;
}
return out;
}
/* PKCS#15 Framework */
static CK_RV
pkcs15_bind(struct sc_pkcs11_card *p11card, struct sc_app_info *app_info)
{
struct pkcs15_fw_data *fw_data = NULL;
struct sc_aid *aid = app_info ? &app_info->aid : NULL;
int rc, idx;
CK_RV ck_rv;
sc_log(context, "Bind PKCS#15 '%s' application", app_info ? app_info->label : "<anonymous>");
if (!p11card)
return CKR_TOKEN_NOT_RECOGNIZED;
for (idx=0; idx<SC_PKCS11_FRAMEWORK_DATA_MAX_NUM; idx++)
if (!p11card->fws_data[idx])
break;
if (idx == SC_PKCS11_FRAMEWORK_DATA_MAX_NUM)
return CKR_USER_TOO_MANY_TYPES;
if (!(fw_data = calloc(1, sizeof(*fw_data))))
return CKR_HOST_MEMORY;
p11card->fws_data[idx] = fw_data;
rc = sc_pkcs15_bind(p11card->card, aid, &fw_data->p15_card);
if (rc != SC_SUCCESS) {
sc_log(context, "sc_pkcs15_bind failed: %d", rc);
return sc_to_cryptoki_error(rc, NULL);
}
/* Mechanisms are registered globally per card. Checking
* p11card->nmechanisms avoids registering the same mechanisms twice for a
* card with multiple slots. */
if (!p11card->nmechanisms) {
ck_rv = register_mechanisms(p11card);
if (ck_rv != CKR_OK) {
sc_log(context, "cannot register mechanisms; CKR 0x%lX",
ck_rv);
return ck_rv;
}
}
return CKR_OK;
}
static CK_RV
pkcs15_unbind(struct sc_pkcs11_card *p11card)
{
unsigned int i, idx;
int rv = SC_SUCCESS;
if (!p11card)
return CKR_TOKEN_NOT_RECOGNIZED;
for (idx=0; p11card && idx<SC_PKCS11_FRAMEWORK_DATA_MAX_NUM; idx++) {
struct pkcs15_fw_data *fw_data = (struct pkcs15_fw_data *) p11card->fws_data[idx];
if (!fw_data)
break;
for (i = 0; i < fw_data->num_objects; i++) {
struct pkcs15_any_object *obj = fw_data->objects[i];
/* use object specific release method if existing */
if (obj->base.ops && obj->base.ops->release)
obj->base.ops->release(obj);
else
__pkcs15_release_object(obj);
}
unlock_card(fw_data);
if (fw_data->p15_card) {
rv = sc_pkcs15_unbind(fw_data->p15_card);
}
fw_data->p15_card = NULL;
free(fw_data);
p11card->fws_data[idx] = NULL;
}
return sc_to_cryptoki_error(rv, NULL);
}
static void
pkcs15_init_token_info(struct sc_pkcs15_card *p15card, CK_TOKEN_INFO_PTR pToken)
{
scconf_block *conf_block = NULL;
char *model = NULL;
conf_block = sc_get_conf_block(p15card->card->ctx, "framework", "pkcs15", 1);
if (conf_block && p15card->file_app) {
scconf_block **blocks = NULL;
char str_path[SC_MAX_AID_STRING_SIZE];
memset(str_path, 0, sizeof(str_path));
sc_bin_to_hex(p15card->file_app->path.value, p15card->file_app->path.len, str_path, sizeof(str_path), 0);
blocks = scconf_find_blocks(p15card->card->ctx->conf, conf_block, "application", str_path);
if (blocks) {
if (blocks[0])
model = (char *)scconf_get_str(blocks[0], "model", NULL);
free(blocks);
}
}
if (model)
strcpy_bp(pToken->model, model, sizeof(pToken->model));
else if (p15card->flags & SC_PKCS15_CARD_FLAG_EMULATED)
strcpy_bp(pToken->model, "PKCS#15 emulated", sizeof(pToken->model));
else
strcpy_bp(pToken->model, "PKCS#15", sizeof(pToken->model));
if (p15card->tokeninfo) {
strcpy_bp(pToken->manufacturerID, p15card->tokeninfo->manufacturer_id, 32);
/* Take the last 16 chars of the serial number (if the are more than 16).
* _Assuming_ that the serial number is a Big Endian counter, this
* will assure that the serial within each type of card will be
* unique in pkcs11 (at least for the first 8^16 cards :-) */
if (p15card->tokeninfo->serial_number != NULL) {
size_t sn_start = strlen(p15card->tokeninfo->serial_number);
if (sn_start <= 16)
sn_start = 0;
else
sn_start -= 16;
strcpy_bp(pToken->serialNumber, p15card->tokeninfo->serial_number + sn_start, 16);
}
}
pToken->ulMaxSessionCount = CK_EFFECTIVELY_INFINITE;
pToken->ulSessionCount = 0; /* FIXME */
pToken->ulMaxRwSessionCount = CK_EFFECTIVELY_INFINITE;
pToken->ulRwSessionCount = 0; /* FIXME */
pToken->ulTotalPublicMemory = CK_UNAVAILABLE_INFORMATION;
pToken->ulFreePublicMemory = CK_UNAVAILABLE_INFORMATION;
pToken->ulTotalPrivateMemory = CK_UNAVAILABLE_INFORMATION;
pToken->ulFreePrivateMemory = CK_UNAVAILABLE_INFORMATION;
pToken->hardwareVersion.major = p15card->card->version.hw_major;
pToken->hardwareVersion.minor = p15card->card->version.hw_minor;
pToken->firmwareVersion.major = p15card->card->version.fw_major;
pToken->firmwareVersion.minor = p15card->card->version.fw_minor;
}
#ifdef USE_PKCS15_INIT
static char *
set_cka_label(CK_ATTRIBUTE_PTR attr, char *label)
{
char *l = (char *)attr->pValue;
unsigned long len = attr->ulValueLen;
if (len >= SC_PKCS15_MAX_LABEL_SIZE)
len = SC_PKCS15_MAX_LABEL_SIZE-1;
memcpy(label, l, len);
label[len] = '\0';
return label;
}
#endif
static int
__pkcs15_create_object(struct pkcs15_fw_data *fw_data,
struct pkcs15_any_object **result,
struct sc_pkcs15_object *p15_object,
struct sc_pkcs11_object_ops *ops,
size_t size)
{
struct pkcs15_any_object *obj;
if (fw_data->num_objects >= MAX_OBJECTS)
return SC_ERROR_TOO_MANY_OBJECTS;
if (!(obj = calloc(1, size)))
return SC_ERROR_OUT_OF_MEMORY;
fw_data->objects[fw_data->num_objects++] = obj;
obj->base.ops = ops;
obj->p15_object = p15_object;
obj->refcount = 1;
obj->size = size;
*result = obj;
return SC_SUCCESS;
}
static int
__pkcs15_release_object(struct pkcs15_any_object *obj)
{
if (--(obj->refcount) != 0)
return obj->refcount;
sc_mem_clear(obj, obj->size);
free(obj);
return 0;
}
#ifdef USE_PKCS15_INIT
static int
__pkcs15_delete_object(struct pkcs15_fw_data *fw_data, struct pkcs15_any_object *obj)
{
unsigned int i;
if (fw_data->num_objects == 0)
return SC_ERROR_INTERNAL;
for (i = 0; i < fw_data->num_objects; ++i) {
if (fw_data->objects[i] == obj) {
fw_data->objects[i] = fw_data->objects[--fw_data->num_objects];
if (__pkcs15_release_object(obj) > 0)
return SC_ERROR_INTERNAL;
return SC_SUCCESS;
}
}
return SC_ERROR_OBJECT_NOT_FOUND;
}
#endif
CK_RV C_GetTokenInfo(CK_SLOT_ID slotID, CK_TOKEN_INFO_PTR pInfo)
{
struct sc_pkcs11_slot *slot;
struct pkcs15_fw_data *fw_data = NULL;
struct sc_pkcs15_object *auth;
const char *name;
CK_RV rv;
if (pInfo == NULL_PTR)
return CKR_ARGUMENTS_BAD;
rv = sc_pkcs11_lock();
if (rv != CKR_OK)
return rv;
sc_log(context, "C_GetTokenInfo(%lx)", slotID);
rv = slot_get_token(slotID, &slot);
if (rv != CKR_OK) {
sc_log(context, "C_GetTokenInfo() get token: rv 0x%lX", rv);
goto out;
}
if (slot->p11card == NULL) {
if (slot->slot_info.flags & CKF_TOKEN_PRESENT) {
rv = CKR_TOKEN_NOT_RECOGNIZED;
} else {
rv = CKR_TOKEN_NOT_PRESENT;
}
goto out;
}
fw_data = (struct pkcs15_fw_data *) slot->p11card->fws_data[slot->fw_data_idx];
if (!fw_data) {
rv = sc_to_cryptoki_error(SC_ERROR_INTERNAL, "C_GetTokenInfo");
goto out;
}
/* User PIN flags are cleared before re-calculation */
slot->token_info.flags &= ~(CKF_USER_PIN_COUNT_LOW|CKF_USER_PIN_FINAL_TRY|CKF_USER_PIN_LOCKED);
auth = slot_data_auth(slot->fw_data);
sc_log(context,
"C_GetTokenInfo() auth. object %p, token-info flags 0x%lX", auth,
slot->token_info.flags);
if (auth) {
struct sc_pkcs15_card *p15card = NULL;
struct sc_pkcs15_auth_info *pin_info = NULL;
pin_info = (struct sc_pkcs15_auth_info*) auth->data;
p15card = fw_data->p15_card;
if (!p15card) {
rv = sc_to_cryptoki_error(SC_ERROR_INVALID_CARD, "C_GetTokenInfo");
goto out;
}
sc_pkcs15_get_pin_info(p15card, auth);
if (pin_info->tries_left >= 0) {
if (pin_info->tries_left == 1 || pin_info->max_tries == 1)
slot->token_info.flags |= CKF_USER_PIN_FINAL_TRY;
else if (pin_info->tries_left == 0)
slot->token_info.flags |= CKF_USER_PIN_LOCKED;
else if (pin_info->max_tries > 1 && pin_info->tries_left < pin_info->max_tries)
slot->token_info.flags |= CKF_USER_PIN_COUNT_LOW;
}
}
memcpy(pInfo, &slot->token_info, sizeof(CK_TOKEN_INFO));
out:
name = lookup_enum(RV_T, rv);
if (name)
sc_log(context, "C_GetTokenInfo(%lx) returns %s", slotID, name);
else
sc_log(context, "C_GetTokenInfo(%lx) returns 0x%08lX", slotID, rv);
sc_pkcs11_unlock();
return rv;
}
static int
public_key_created(struct pkcs15_fw_data *fw_data, const struct sc_pkcs15_id *id,
struct pkcs15_any_object **obj2)
{
size_t ii;
for(ii=0; ii<fw_data->num_objects; ii++) {
struct pkcs15_any_object *any_object = fw_data->objects[ii];
struct sc_pkcs15_object *p15_object = any_object->p15_object;
if (!p15_object)
continue;
if ((p15_object->type & SC_PKCS15_TYPE_CLASS_MASK) != SC_PKCS15_TYPE_PUBKEY)
continue;
if (sc_pkcs15_compare_id(id, &((struct sc_pkcs15_pubkey_info *)p15_object->data)->id)) {
if (obj2)
*obj2 = any_object;
return SC_SUCCESS;
}
}
return SC_ERROR_OBJECT_NOT_FOUND;
}
static void
pkcs15_cert_extract_label(struct pkcs15_cert_object *cert)
{
if (!cert || !cert->cert_p15obj || !cert->cert_data)
return;
sc_log(context, "pkcs15_cert_extract_label() called. Current label: %s", cert->cert_p15obj->label);
/* if we didn't get a label, set one based on the CN */
if (*cert->cert_p15obj->label == '\0') { /* can't be NULL -- static array */
static const struct sc_object_id cn_oid = {{ 2, 5, 4, 3, -1 }};
u8 *cn_name = NULL;
size_t cn_len = 0;
int rv = sc_pkcs15_get_name_from_dn(context,
cert->cert_data->subject, cert->cert_data->subject_len,
&cn_oid, &cn_name, &cn_len);
if (rv == SC_SUCCESS) {
sc_log(context, "pkcs15_cert_extract_label(): Name from DN is %.*s",
(unsigned int) cn_len, cn_name);
cn_len = MIN(cn_len, SC_PKCS15_MAX_LABEL_SIZE-1);
memcpy(cert->cert_p15obj->label, cn_name, cn_len);
cert->cert_p15obj->label[cn_len] = '\0';
}
free(cn_name);
}
}
static int
__pkcs15_create_cert_object(struct pkcs15_fw_data *fw_data, struct sc_pkcs15_object *cert,
struct pkcs15_any_object **cert_object)
{
struct sc_pkcs15_cert_info *p15_info = NULL;
struct sc_pkcs15_cert *p15_cert = NULL;
struct pkcs15_any_object *any_object = NULL;
struct pkcs15_cert_object *object = NULL;
struct pkcs15_pubkey_object *obj2 = NULL;
struct pkcs15_any_object *any_object2 = NULL;
int rv;
p15_info = (struct sc_pkcs15_cert_info *) cert->data;
if (cert->flags & SC_PKCS15_CO_FLAG_PRIVATE) { /* is the cert private? */
p15_cert = NULL; /* will read cert when needed */
}
else {
rv = sc_pkcs15_read_certificate(fw_data->p15_card, p15_info, 0, &p15_cert);
if (rv < 0)
return rv;
}
/* Certificate object */
rv = __pkcs15_create_object(fw_data, &any_object,
cert, &pkcs15_cert_ops, sizeof(struct pkcs15_cert_object));
object = (struct pkcs15_cert_object *) any_object;
if (rv < 0) {
if (p15_cert != NULL)
sc_pkcs15_free_certificate(p15_cert);
return rv;
}
object->cert_info = p15_info;
object->cert_data = p15_cert;
/* Corresponding public key */
rv = public_key_created(fw_data, &p15_info->id, &any_object2);
if (rv != SC_SUCCESS)
rv = __pkcs15_create_object(fw_data, &any_object2,
NULL, &pkcs15_pubkey_ops, sizeof(struct pkcs15_pubkey_object));
obj2 = (struct pkcs15_pubkey_object *) any_object2;
if (rv < 0)
return rv;
if (p15_cert) {
/* make a copy of public key from the cert */
if (!obj2->pub_data)
rv = sc_pkcs15_pubkey_from_cert(context, &p15_cert->data, &obj2->pub_data);
if (rv < 0)
return rv;
}
obj2->pub_genfrom = object;
object->cert_pubkey = obj2;
/* Find missing labels for certificate */
pkcs15_cert_extract_label(object);
if (cert_object != NULL)
*cert_object = any_object;
return 0;
}
static int
__pkcs15_create_pubkey_object(struct pkcs15_fw_data *fw_data,
struct sc_pkcs15_object *pubkey, struct pkcs15_any_object **pubkey_object)
{
struct pkcs15_any_object *any_object = NULL;
struct pkcs15_pubkey_object *object = NULL;
struct sc_pkcs15_pubkey *p15_key = NULL;
int rv;
/* Read public key from card */
/* Attempt to read pubkey from card or file.
* During initialization process, the key may have been created
* and saved as a file before the certificate has been created.
*/
if (pubkey->flags & SC_PKCS15_CO_FLAG_PRIVATE) { /* is the key private? */
sc_log(context, "No pubkey");
p15_key = NULL; /* will read key when needed */
}
else {
/* if emulation already created pubkey use it */
if (pubkey->emulated && (fw_data->p15_card->flags & SC_PKCS15_CARD_FLAG_EMULATED)) {
sc_log(context, "Use emulated pubkey");
sc_pkcs15_dup_pubkey(context, (struct sc_pkcs15_pubkey *) pubkey->emulated, &p15_key);
}
else {
sc_log(context, "Get pubkey from PKCS#15 object");
rv = sc_pkcs15_read_pubkey(fw_data->p15_card, pubkey, &p15_key);
if (rv < 0)
p15_key = NULL;
}
}
/* Public key object */
rv = __pkcs15_create_object(fw_data, &any_object,
pubkey, &pkcs15_pubkey_ops, sizeof(struct pkcs15_pubkey_object));
object = (struct pkcs15_pubkey_object *) any_object;
if (rv >= 0) {
object->pub_info = (struct sc_pkcs15_pubkey_info *) pubkey->data;
object->pub_data = p15_key;
if (p15_key && object->pub_info->modulus_length == 0 && p15_key->algorithm == SC_ALGORITHM_RSA)
object->pub_info->modulus_length = 8 * p15_key->u.rsa.modulus.len;
} else {
sc_pkcs15_free_pubkey(p15_key);
}
if (object && object->pub_data) {
if ((object->pub_data->alg_id)&&(object->pub_data->algorithm == SC_ALGORITHM_GOSTR3410))
object->pub_data->alg_id->params = &((object->pub_data->u).gostr3410.params);
}
if (pubkey_object != NULL)
*pubkey_object = any_object;
return rv;
}
static int
__pkcs15_create_prkey_object(struct pkcs15_fw_data *fw_data,
struct sc_pkcs15_object *prkey, struct pkcs15_any_object **prkey_object)
{
struct pkcs15_any_object *any_object = NULL;
struct pkcs15_prkey_object *object = NULL;
int rv;
rv = __pkcs15_create_object(fw_data, &any_object,
prkey, &pkcs15_prkey_ops, sizeof(struct pkcs15_prkey_object));
object = (struct pkcs15_prkey_object *) any_object;
if (rv >= 0)
object->prv_info = (struct sc_pkcs15_prkey_info *) prkey->data;
if (prkey_object != NULL)
*prkey_object = any_object;
return rv;
}
static int
__pkcs15_create_data_object(struct pkcs15_fw_data *fw_data,
struct sc_pkcs15_object *object, struct pkcs15_any_object **data_object)
{
struct pkcs15_any_object *any_object = NULL;
struct pkcs15_data_object *dobj = NULL;
int rv;
rv = __pkcs15_create_object(fw_data, &any_object,
object, &pkcs15_dobj_ops, sizeof(struct pkcs15_data_object));
dobj = (struct pkcs15_data_object *) any_object;
if (rv >= 0) {
dobj->info = (struct sc_pkcs15_data_info *) object->data;
dobj->value = NULL;
}
if (data_object != NULL)
*data_object = any_object;
return rv;
}
/* Note, that this is not an actual PKCS #15 object, but just a bogus
* structure to create PKCS #11 object. There is no corresponding
* PKCS #15 object. */
static int
__pkcs15_create_profile_object(struct pkcs15_fw_data *fw_data,
int public_certificates, struct pkcs15_any_object **profile_object)
{
struct pkcs15_profile_object *pobj = NULL;
struct pkcs15_any_object *any_pobj = NULL;
struct sc_pkcs15_object *obj = NULL;
int rv;
obj = calloc(1, sizeof(struct sc_pkcs15_object));
rv = __pkcs15_create_object(fw_data, &any_pobj,
obj, &pkcs15_profile_ops, sizeof(struct pkcs15_profile_object));
if (rv != SC_SUCCESS) {
free(obj);
return rv;
}
pobj = (struct pkcs15_profile_object *) any_pobj;
pobj->profile_id = public_certificates ? CKP_PUBLIC_CERTIFICATES_TOKEN : CKP_AUTHENTICATION_TOKEN;
if (profile_object != NULL)
*profile_object = (struct pkcs15_any_object *) pobj;
return rv;
}
static int
__pkcs15_create_secret_key_object(struct pkcs15_fw_data *fw_data,
struct sc_pkcs15_object *object, struct pkcs15_any_object **skey_object)
{
struct pkcs15_any_object *any_object = NULL;
struct pkcs15_skey_object *skey = NULL;
int rv;
rv = __pkcs15_create_object(fw_data, &any_object,
object, &pkcs15_skey_ops, sizeof(struct pkcs15_skey_object));
skey = (struct pkcs15_skey_object *)any_object;
if (rv >= 0)
skey->info = (struct sc_pkcs15_skey_info *)object->data;
if (skey_object != NULL)
*skey_object = any_object;
return rv;
}
static int
pkcs15_create_pkcs11_objects(struct pkcs15_fw_data *fw_data, int p15_type, const char *name,
int (*create)(struct pkcs15_fw_data *, struct sc_pkcs15_object *,
struct pkcs15_any_object **any_object))
{
struct sc_pkcs15_object *p15_object[MAX_OBJECTS];
int i, count, rv;
rv = count = sc_pkcs15_get_objects(fw_data->p15_card, p15_type, p15_object, MAX_OBJECTS);
if (rv >= 0)
sc_log(context, "Found %d %s%s", count, name, (count == 1)? "" : "s");
for (i = 0; rv >= 0 && i < count; i++)
rv = create(fw_data, p15_object[i], NULL);
return count;
}
static void
__pkcs15_prkey_bind_related(struct pkcs15_fw_data *fw_data, struct pkcs15_prkey_object *pk)
{
struct sc_pkcs15_id *id = &pk->prv_info->id;
unsigned int i;
sc_log(context, "Object is a private key and has id %s", sc_pkcs15_print_id(id));
for (i = 0; i < fw_data->num_objects; i++) {
struct pkcs15_any_object *obj = fw_data->objects[i];
if (obj->base.flags & SC_PKCS11_OBJECT_HIDDEN)
continue;
if (is_privkey(obj) && obj != (struct pkcs15_any_object *) pk) {
/* merge private keys with the same ID and
* different usage bits */
struct pkcs15_prkey_object *other, **pp;
other = (struct pkcs15_prkey_object *) obj;
if (sc_pkcs15_compare_id(&other->prv_info->id, id)) {
obj->base.flags |= SC_PKCS11_OBJECT_HIDDEN;
for (pp = &pk->prv_next; *pp; pp = &(*pp)->prv_next)
;
*pp = (struct pkcs15_prkey_object *) obj;
}
}
else if (is_pubkey(obj) && !pk->prv_pubkey) {
struct pkcs15_pubkey_object *pubkey;
pubkey = (struct pkcs15_pubkey_object *) obj;
if (sc_pkcs15_compare_id(&pubkey->pub_info->id, id)) {
sc_log(context, "Associating object %d as public key", i);
pk->prv_pubkey = pubkey;
if (pubkey->pub_data) {
sc_pkcs15_dup_pubkey(context, pubkey->pub_data, &pk->pub_data);
if (pk->prv_info->modulus_length == 0)
pk->prv_info->modulus_length = pubkey->pub_info->modulus_length;
}
}
}
}
}
static void
__pkcs15_cert_bind_related(struct pkcs15_fw_data *fw_data, struct pkcs15_cert_object *cert)
{
struct sc_pkcs15_cert *c1 = cert->cert_data;
struct sc_pkcs15_id *id = &cert->cert_info->id;
unsigned int i;
sc_log(context, "Object is a certificate and has id %s", sc_pkcs15_print_id(id));
/* Loop over all objects to see if we find the certificate of
* the issuer and the associated private key */
for (i = 0; i < fw_data->num_objects; i++) {
struct pkcs15_any_object *obj = fw_data->objects[i];
if (is_cert(obj) && obj != (struct pkcs15_any_object *) cert) {
struct pkcs15_cert_object *cert2;
struct sc_pkcs15_cert *c2;
cert2 = (struct pkcs15_cert_object *) obj;
c2 = cert2->cert_data;
if (!c1 || !c2 || !c1->issuer_len || !c2->subject_len)
continue;
if (c1->issuer_len == c2->subject_len
&& !memcmp(c1->issuer, c2->subject, c1->issuer_len)) {
sc_log(context, "Associating object %d (id %s) as issuer",
i, sc_pkcs15_print_id(&cert2->cert_info->id));
cert->cert_issuer = (struct pkcs15_cert_object *) obj;
return;
}
} else
if (is_privkey(obj) && !cert->cert_prvkey) {
struct pkcs15_prkey_object *pk;
pk = (struct pkcs15_prkey_object *) obj;
if (sc_pkcs15_compare_id(&pk->prv_info->id, id)) {
sc_log(context, "Associating object %d as private key", i);
cert->cert_prvkey = pk;
}
}
}
}
static void
pkcs15_bind_related_objects(struct pkcs15_fw_data *fw_data)
{
unsigned int i;
/* Loop over all private keys and attached related certificate
* and/or public key
*/
for (i = 0; i < fw_data->num_objects; i++) {
struct pkcs15_any_object *obj = fw_data->objects[i];
if (obj->base.flags & SC_PKCS11_OBJECT_HIDDEN)
continue;
sc_log(context, "Looking for objects related to object %d", i);
if (is_privkey(obj))