/src/opensc/src/pkcs15init/pkcs15-oberthur.c

Source
/*
 * Oberthur specific operation for PKCS #15 initialization
 *
 * Copyright (C) 2002  Juha Yrjölä <juha.yrjola@iki.fi>
 * Copyright (C) 2009  Viktor Tarasov <viktor.tarasov@opentrust.com>,
 *                     OpenTrust <www.opentrust.com>
 *
 * 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 "pkcs15-oberthur.h"
#include <sys/types.h>
#include <ctype.h>

#include "libopensc/opensc.h"
#include "libopensc/cardctl.h"
#include "libopensc/log.h"
#include "profile.h"
#include "pkcs15-init.h"

#define COSM_TITLE "OberthurAWP"

#define TLV_TYPE_V  0
#define TLV_TYPE_LV 1
#define TLV_TYPE_TLV  2

/* Should be greater then SC_PKCS15_TYPE_CLASS_MASK */
#define SC_DEVICE_SPECIFIC_TYPE  0x1000

#define COSM_TYPE_PRKEY_RSA (SC_DEVICE_SPECIFIC_TYPE | SC_PKCS15_TYPE_PRKEY_RSA)
#define COSM_TYPE_PUBKEY_RSA (SC_DEVICE_SPECIFIC_TYPE | SC_PKCS15_TYPE_PUBKEY_RSA)

#define COSM_TOKEN_FLAG_PRN_GENERATION    0x01
#define COSM_TOKEN_FLAG_LOGIN_REQUIRED    0x04
#define COSM_TOKEN_FLAG_USER_PIN_INITIALIZED  0x08
#define COSM_TOKEN_FLAG_TOKEN_INITIALIZED 0x0400

static int cosm_create_reference_data(struct sc_profile *, struct sc_pkcs15_card *,
    struct sc_pkcs15_auth_info *, const unsigned char *, size_t,
    const unsigned char *, size_t);
static int cosm_update_pin(struct sc_profile *, struct sc_pkcs15_card *,
    struct sc_pkcs15_auth_info *, const unsigned char *, size_t,
    const unsigned char *, size_t);

static int
cosm_write_tokeninfo (struct sc_pkcs15_card *p15card, struct sc_profile *profile,
    char *label, unsigned flags)
{
  struct sc_context *ctx;
  struct sc_file *file = NULL;
  int rv;
  size_t sz;
  char *buffer = NULL;

  if (!p15card || !p15card->card || !profile)
    return SC_ERROR_INVALID_ARGUMENTS;

  ctx = p15card->card->ctx;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  if (sc_profile_get_file(profile, COSM_TITLE"-token-info", &file)) {
    rv = SC_ERROR_INCONSISTENT_PROFILE;
    SC_TEST_GOTO_ERR(ctx, SC_LOG_DEBUG_VERBOSE, rv, "Cannot find "COSM_TITLE"-token-info");
  }

  if (file->size < 16) {
    rv = SC_ERROR_INCONSISTENT_PROFILE;
    SC_TEST_GOTO_ERR(ctx, SC_LOG_DEBUG_VERBOSE, rv, "Insufficient size of the "COSM_TITLE"-token-info file");
  }

  buffer = calloc(1, file->size);
  if (!buffer) {
    rv = SC_ERROR_OUT_OF_MEMORY;
    SC_TEST_GOTO_ERR(ctx, SC_LOG_DEBUG_VERBOSE, rv, "Allocation error in cosm_write_tokeninfo()");
  }

  if (label)
    strncpy(buffer, label, file->size - 4);
  else if (p15card->tokeninfo->label)
    snprintf(buffer, file->size - 4, "%s", p15card->tokeninfo->label);
  else if (profile->p15_spec && profile->p15_spec->tokeninfo->label)
    snprintf(buffer, file->size - 4, "%s", profile->p15_spec->tokeninfo->label);
  else
    snprintf(buffer, file->size - 4, "OpenSC-Token");

  sz = strlen(buffer);
  if (sz < file->size - 4)
    memset(buffer + sz, ' ', file->size - sz);

  sc_log(ctx,  "cosm_write_tokeninfo() token label '%s'; oberthur flags 0x%X", buffer, flags);

  memset(buffer + file->size - 4, 0, 4);
  *(buffer + file->size - 1) = flags & 0xFF;
  *(buffer + file->size - 2) = (flags >> 8) & 0xFF;

  rv = sc_pkcs15init_update_file(profile, p15card, file, buffer, file->size);
  if (rv > 0)
    rv = 0;

err:
  sc_file_free(file);
  free(buffer);
  LOG_FUNC_RETURN(ctx, rv);
}


int
cosm_delete_file(struct sc_pkcs15_card *p15card, struct sc_profile *profile,
    struct sc_file *df)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_path  path;
  struct sc_file  *parent;
  int rv = 0;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  sc_log(ctx,  "id %04X", df->id);
  if (df->type==SC_FILE_TYPE_DF)   {
    rv = sc_pkcs15init_authenticate(profile, p15card, df, SC_AC_OP_DELETE);
    LOG_TEST_RET(ctx, rv, "Cannot authenticate SC_AC_OP_DELETE");
  }

  /* Select the parent DF */
  path = df->path;
  if (path.len < 2) {
    LOG_FUNC_RETURN(ctx, SC_ERROR_INVALID_ARGUMENTS);
  }
  path.len -= 2;

  rv = sc_select_file(p15card->card, &path, &parent);
  LOG_TEST_RET(ctx, rv, "Cannot select parent");

  rv = sc_pkcs15init_authenticate(profile, p15card, parent, SC_AC_OP_DELETE);
  sc_file_free(parent);
  LOG_TEST_RET(ctx, rv, "Cannot authenticate SC_AC_OP_DELETE");

  memset(&path, 0, sizeof(path));
  path.type = SC_PATH_TYPE_FILE_ID;
  path.value[0] = df->id >> 8;
  path.value[1] = df->id & 0xFF;
  path.len = 2;

  rv = sc_delete_file(p15card->card, &path);

  LOG_FUNC_RETURN(ctx, rv);
}


/*
 * Erase the card
 */
static int
cosm_erase_card(struct sc_profile *profile, struct sc_pkcs15_card *p15card)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_file  *df = profile->df_info->file, *dir;
  int rv;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  /* Delete EF(DIR). This may not be very nice
   * against other applications that use this file, but
   * extremely useful for testing :)
   * Note we need to delete if before the DF because we create
   * it *after* the DF.
   * */
  if (sc_profile_get_file(profile, "DIR", &dir) >= 0) {
    sc_log(ctx,  "erase file dir %04X",dir->id);
    rv = cosm_delete_file(p15card, profile, dir);
    sc_file_free(dir);
    if (rv < 0 && rv != SC_ERROR_FILE_NOT_FOUND)
      goto done;
  }

  sc_log(ctx,  "erase file ddf %04X",df->id);
  rv = cosm_delete_file(p15card, profile, df);
  if (rv < 0 && rv != SC_ERROR_FILE_NOT_FOUND)
    goto done;

  if (sc_profile_get_file(profile, "private-DF", &dir) >= 0) {
    sc_log(ctx,  "erase file dir %04X",dir->id);
    rv = cosm_delete_file(p15card, profile, dir);
    sc_file_free(dir);
    if (rv < 0 && rv != SC_ERROR_FILE_NOT_FOUND)
      goto done;
  }

  if (sc_profile_get_file(profile, "public-DF", &dir) >= 0) {
    sc_log(ctx,  "erase file dir %04X",dir->id);
    rv = cosm_delete_file(p15card, profile, dir);
    sc_file_free(dir);
    if (rv < 0 && rv != SC_ERROR_FILE_NOT_FOUND)
      goto done;
  }

  rv = sc_profile_get_file(profile, COSM_TITLE"-AppDF", &dir);
  if (!rv) {
    sc_log(ctx,  "delete %s; r %i", COSM_TITLE"-AppDF", rv);
    rv = cosm_delete_file(p15card, profile, dir);
    sc_file_free(dir);
  }

  sc_free_apps(p15card->card);
done:
  if (rv == SC_ERROR_FILE_NOT_FOUND)
    rv = 0;

  LOG_FUNC_RETURN(ctx, rv);
}


static int
cosm_create_dir(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_file *df)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_file *file = NULL;
  size_t ii;
  int rv;
  static const char *create_dfs[] = {
    COSM_TITLE"-AppDF",
    "private-DF",
    "public-DF",
    COSM_TITLE"-token-info",
    COSM_TITLE"-puk-file",
    COSM_TITLE"-container-list",
    COSM_TITLE"-public-list",
    COSM_TITLE"-private-list",
    NULL
  };

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);

  /* Oberthur AWP file system is expected.*/
  /* Create private objects DF */
  for (ii = 0; create_dfs[ii]; ii++)   {
    if (sc_profile_get_file(profile, create_dfs[ii], &file))   {
      sc_log(ctx,  "Inconsistent profile: cannot find %s", create_dfs[ii]);
      LOG_TEST_RET(ctx, SC_ERROR_INCONSISTENT_PROFILE, "Profile do not contains Oberthur AWP file");
    }

    rv = sc_pkcs15init_create_file(profile, p15card, file);
    sc_file_free(file);
    if (rv != SC_ERROR_FILE_ALREADY_EXISTS)
      LOG_TEST_RET(ctx, rv, "Failed to create Oberthur AWP file");
  }

  rv = cosm_write_tokeninfo(p15card, profile, NULL,
    COSM_TOKEN_FLAG_TOKEN_INITIALIZED | COSM_TOKEN_FLAG_PRN_GENERATION);

  LOG_FUNC_RETURN(ctx, rv);
}


static int
cosm_create_reference_data(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_auth_info *ainfo,
    const unsigned char *pin, size_t pin_len,
    const unsigned char *puk, size_t puk_len )
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_card *card = p15card->card;
  struct sc_pkcs15_auth_info profile_auth_pin = {0}, profile_auth_puk = {0};
  struct sc_cardctl_oberthur_createpin_info args;
  int rv;
  unsigned char oberthur_puk[16] = {
    0x6F, 0x47, 0xD9, 0x88, 0x4B, 0x6F, 0x9D, 0xC5,
    0x78, 0x33, 0x79, 0x8F, 0x5B, 0x7D, 0xE1, 0xA5
  };

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  sc_log(ctx,
     "pin lens %"SC_FORMAT_LEN_SIZE_T"u/%"SC_FORMAT_LEN_SIZE_T"u",
     pin_len, puk_len);
  if (!pin || pin_len>0x40)
    return SC_ERROR_INVALID_ARGUMENTS;
  if (puk && !puk_len)
    return SC_ERROR_INVALID_ARGUMENTS;
  if (ainfo->auth_type != SC_PKCS15_PIN_AUTH_TYPE_PIN)
    return SC_ERROR_OBJECT_NOT_VALID;

  rv = sc_select_file(card, &ainfo->path, NULL);
  LOG_TEST_RET(ctx, rv, "Cannot select file");

  sc_profile_get_pin_info(profile, SC_PKCS15INIT_USER_PIN, &profile_auth_pin);
  sc_profile_get_pin_info(profile, SC_PKCS15INIT_USER_PUK, &profile_auth_puk);

  memset(&args, 0, sizeof(args));
  args.type = SC_AC_CHV;
  args.ref = ainfo->attrs.pin.reference;
  args.pin = pin;
  args.pin_len = pin_len;

  if (!(ainfo->attrs.pin.flags & SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN))   {
    args.pin_tries = profile_auth_pin.tries_left;
    if (profile_auth_puk.tries_left > 0)   {
      args.puk = oberthur_puk;
      args.puk_len = sizeof(oberthur_puk);
      args.puk_tries = 5;
    }
  }
  else   {
    args.pin_tries = profile_auth_puk.tries_left;
  }

  rv = sc_card_ctl(card, SC_CARDCTL_OBERTHUR_CREATE_PIN, &args);
  LOG_TEST_RET(ctx, rv, "'CREATE_PIN' card specific command failed");

  if (!(ainfo->attrs.pin.flags & SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN)
      && (profile_auth_puk.tries_left > 0))   {
          struct sc_file *file = NULL;

    if (sc_profile_get_file(profile, COSM_TITLE"-puk-file", &file))
      LOG_TEST_RET(ctx, SC_ERROR_INCONSISTENT_PROFILE, "Cannot find PUKFILE");

    rv = sc_pkcs15init_update_file(profile, p15card, file, oberthur_puk, sizeof(oberthur_puk));
    LOG_TEST_RET(ctx, rv, "Failed to update pukfile");

    sc_file_free(file);
  }

  LOG_FUNC_RETURN(ctx, rv);
}


/*
 * Update PIN
 */
static int
cosm_update_pin(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_auth_info *ainfo, const unsigned char *pin, size_t pin_len,
    const unsigned char *puk, size_t puk_len )
{
  struct sc_context *ctx = p15card->card->ctx;
  int rv;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  if (ainfo->auth_type != SC_PKCS15_PIN_AUTH_TYPE_PIN)
    return SC_ERROR_OBJECT_NOT_VALID;

  sc_log(ctx,  "ref %i; flags 0x%X", ainfo->attrs.pin.reference, ainfo->attrs.pin.flags);

  if (ainfo->attrs.pin.flags & SC_PKCS15_PIN_FLAG_SO_PIN)   {
    if (ainfo->attrs.pin.reference != 4)
      LOG_TEST_RET(ctx, SC_ERROR_INVALID_PIN_REFERENCE, "cosm_update_pin() invalid SOPIN reference");
    sc_log(ctx,  "Update SOPIN ignored");
    rv = SC_SUCCESS;
  }
  else   {
    rv = cosm_create_reference_data(profile, p15card, ainfo, pin, pin_len, puk, puk_len);
    LOG_TEST_RET(ctx, rv, "cosm_update_pin() failed to change PIN");

    rv = cosm_write_tokeninfo(p15card, profile, NULL,
      COSM_TOKEN_FLAG_TOKEN_INITIALIZED
      | COSM_TOKEN_FLAG_PRN_GENERATION
      | COSM_TOKEN_FLAG_LOGIN_REQUIRED
      | COSM_TOKEN_FLAG_USER_PIN_INITIALIZED);
    LOG_TEST_RET(ctx, rv, "cosm_update_pin() failed to update tokeninfo");
  }

  LOG_FUNC_RETURN(ctx, rv);
}


static int
cosm_select_pin_reference(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_auth_info *auth_info)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_pkcs15_pin_attributes *pin_attrs;
  struct sc_file *pinfile;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  if (auth_info->auth_type != SC_PKCS15_PIN_AUTH_TYPE_PIN)
    return SC_ERROR_OBJECT_NOT_VALID;

  pin_attrs = &auth_info->attrs.pin;

  sc_log(ctx,  "ref %i; flags %X", pin_attrs->reference, pin_attrs->flags);
  if (sc_profile_get_file(profile, COSM_TITLE "-AppDF", &pinfile) < 0) {
    sc_log(ctx,  "Profile doesn't define \"%s\"", COSM_TITLE "-AppDF");
    return SC_ERROR_INCONSISTENT_PROFILE;
  }

  if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_LOCAL)
    auth_info->path = pinfile->path;

  sc_file_free(pinfile);

  if (pin_attrs->reference <= 0)   {
    if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_SO_PIN)
      pin_attrs->reference = 4;
    else if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN)
      pin_attrs->reference = 4;
    else
      pin_attrs->reference = 1;

    if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_LOCAL)
      pin_attrs->reference |= 0x80;
  }

  LOG_FUNC_RETURN(ctx, SC_SUCCESS);
}


/*
 * Store a PIN
 */
static int
cosm_create_pin(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_file *df, struct sc_pkcs15_object *pin_obj,
    const unsigned char *pin, size_t pin_len,
    const unsigned char *puk, size_t puk_len)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_pkcs15_auth_info *auth_info = (struct sc_pkcs15_auth_info *) pin_obj->data;
  struct sc_pkcs15_pin_attributes *pin_attrs;
  struct sc_file *pin_file;
  int rv = 0;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  if (auth_info->auth_type != SC_PKCS15_PIN_AUTH_TYPE_PIN)
    return SC_ERROR_OBJECT_NOT_VALID;

  pin_attrs = &auth_info->attrs.pin;

  sc_log(ctx,  "create '%.*s'; ref 0x%X; flags %X", (int) sizeof pin_obj->label, pin_obj->label, pin_attrs->reference, pin_attrs->flags);
  if (sc_profile_get_file(profile, COSM_TITLE "-AppDF", &pin_file) < 0)
    LOG_TEST_RET(ctx, SC_ERROR_INCONSISTENT_PROFILE, "\""COSM_TITLE"-AppDF\" not defined");

  if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_LOCAL)
    auth_info->path = pin_file->path;

  sc_file_free(pin_file);

  if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_SO_PIN)   {
    if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN)   {
      LOG_TEST_RET(ctx, SC_ERROR_NOT_SUPPORTED, "SOPIN unblocking is not supported");
    }
    else   {
      if (pin_attrs->reference != 4)
        LOG_TEST_RET(ctx, SC_ERROR_INVALID_PIN_REFERENCE, "Invalid SOPIN reference");
    }
  }
  else {
    if (pin_attrs->flags & SC_PKCS15_PIN_FLAG_UNBLOCKING_PIN)   {
      if (pin_attrs->reference != 0x84)
        LOG_TEST_RET(ctx, SC_ERROR_INVALID_PIN_REFERENCE, "Invalid User PUK reference");
    }
    else   {
      if (pin_attrs->reference != 0x81)
        LOG_TEST_RET(ctx, SC_ERROR_INVALID_PIN_REFERENCE, "Invalid User PIN reference");
    }
  }

  if (pin && pin_len)   {
    rv = cosm_update_pin(profile, p15card, auth_info, pin, pin_len,  puk, puk_len);
    LOG_TEST_RET(ctx, rv, "Update PIN failed");
  }

  LOG_FUNC_RETURN(ctx, rv);
}


/*
 * Allocate a file
 */
static int
cosm_new_file(struct sc_profile *profile, struct sc_card *card,
    unsigned int type, unsigned int num, struct sc_file **out)
{
  struct sc_file  *file;
  const char *_template = NULL, *desc = NULL;
  unsigned int structure = 0xFFFFFFFF;

  SC_FUNC_CALLED(card->ctx, SC_LOG_DEBUG_VERBOSE);
  sc_log(card->ctx,  "cosm_new_file() type %X; num %i",type, num);
  while (1) {
    switch (type) {
    case SC_PKCS15_TYPE_PRKEY_RSA:
    case COSM_TYPE_PRKEY_RSA:
      desc = "RSA private key";
      _template = "template-private-key";
      structure = SC_CARDCTL_OBERTHUR_KEY_RSA_CRT;
      break;
    case SC_PKCS15_TYPE_PUBKEY_RSA:
    case COSM_TYPE_PUBKEY_RSA:
      desc = "RSA public key";
      _template = "template-public-key";
      structure = SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC;
      break;
    case SC_PKCS15_TYPE_CERT:
      desc = "certificate";
      _template = "template-certificate";
      break;
    case SC_PKCS15_TYPE_DATA_OBJECT:
      desc = "data object";
      _template = "template-public-data";
      break;
    }
    if (_template)
      break;
    /* If this is a specific type such as
     * SC_PKCS15_TYPE_CERT_FOOBAR, fall back to
     * the generic class (SC_PKCS15_TYPE_CERT)
     */
    if (!(type & ~SC_PKCS15_TYPE_CLASS_MASK)) {
      sc_log(card->ctx,  "File type %X not supported by card driver",
        type);
      return SC_ERROR_INVALID_ARGUMENTS;
    }
    type &= SC_PKCS15_TYPE_CLASS_MASK;
  }

  sc_log(card->ctx,  "cosm_new_file() template %s; num %i",_template, num);
  if (sc_profile_get_file(profile, _template, &file) < 0) {
    sc_log(card->ctx,  "Profile doesn't define %s template '%s'",
        desc, _template);
    LOG_FUNC_RETURN(card->ctx, SC_ERROR_NOT_SUPPORTED);
  }

  file->id |= (num & 0xFF);
  if (file->path.len) {
    file->path.value[file->path.len - 1] |= (num & 0xFF);
  }
  if (file->type == SC_FILE_TYPE_INTERNAL_EF)   {
    file->ef_structure = structure;
  }

  sc_log(card->ctx,
     "cosm_new_file() file size %"SC_FORMAT_LEN_SIZE_T"u; ef type %i/%i; id %04X",
     file->size, file->type, file->ef_structure, file->id);
  *out = file;

  LOG_FUNC_RETURN(card->ctx, SC_SUCCESS);
}


static int
cosm_get_temporary_public_key_file(struct sc_card *card,
    struct sc_file *prvkey_file, struct sc_file **pubkey_file)
{
  struct sc_context *ctx = card->ctx;
  const struct sc_acl_entry *entry = NULL;
  struct sc_file *file = NULL;
  int rv;

  SC_FUNC_CALLED(card->ctx, SC_LOG_DEBUG_VERBOSE);
  if (!pubkey_file || !prvkey_file)
    LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_ARGUMENTS);

  file = sc_file_new();
  if (!file)
    LOG_FUNC_RETURN(card->ctx, SC_ERROR_OUT_OF_MEMORY);

  file->status = SC_FILE_STATUS_ACTIVATED;
        file->type = SC_FILE_TYPE_INTERNAL_EF;
  file->ef_structure = SC_CARDCTL_OBERTHUR_KEY_RSA_PUBLIC;
  file->id = 0x1012;
  memcpy(&file->path, &prvkey_file->path, sizeof(file->path));
        file->path.value[file->path.len - 2] = 0x10;
  file->path.value[file->path.len - 1] = 0x12;
  file->size = prvkey_file->size;

  entry = sc_file_get_acl_entry(prvkey_file, SC_AC_OP_UPDATE);
  if (!entry) {
    sc_file_free(file);
    LOG_TEST_RET(ctx, SC_ERROR_OBJECT_NOT_FOUND, "Failed to find ACL entry");
  }
  rv = sc_file_add_acl_entry(file, SC_AC_OP_UPDATE, entry->method, entry->key_ref);
  if (!rv)
    rv = sc_file_add_acl_entry(file, SC_AC_OP_PSO_ENCRYPT, SC_AC_NONE, 0);
  if (!rv)
    rv = sc_file_add_acl_entry(file, SC_AC_OP_PSO_VERIFY_SIGNATURE, SC_AC_NONE, 0);
  if (!rv)
    rv = sc_file_add_acl_entry(file, SC_AC_OP_EXTERNAL_AUTHENTICATE, SC_AC_NONE, 0);
  if (rv < 0)
    sc_file_free(file);
  LOG_TEST_RET(ctx, rv, "Failed to add ACL entry to the temporary public key file");

  *pubkey_file = file;

  LOG_FUNC_RETURN(card->ctx, rv);
}


static int
cosm_generate_key(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_object *object,
    struct sc_pkcs15_pubkey *pubkey)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_pkcs15_prkey_info *key_info = (struct sc_pkcs15_prkey_info *)object->data;
  struct sc_cardctl_oberthur_genkey_info args;
  struct sc_file *prkf = NULL, *tmpf = NULL;
  struct sc_path path;
  int rv = 0;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);

  if (object->type != SC_PKCS15_TYPE_PRKEY_RSA)
    LOG_TEST_RET(ctx, SC_ERROR_NOT_SUPPORTED, "Generate key failed: RSA only supported");

  path = key_info->path;
  path.len -= 2;

  rv = sc_select_file(p15card->card, &path, &tmpf);
  LOG_TEST_RET(ctx, rv, "Cannot generate key: failed to select private object DF");

  rv = sc_pkcs15init_authenticate(profile, p15card, tmpf, SC_AC_OP_CRYPTO);
  if (rv != SC_SUCCESS) {
    sc_file_free(tmpf);
    LOG_TEST_RET(ctx, rv, "Cannot generate key: 'CRYPTO' authentication failed");
  }

  rv = sc_pkcs15init_authenticate(profile, p15card, tmpf, SC_AC_OP_CREATE);
  sc_file_free(tmpf);
  tmpf = NULL;
  LOG_TEST_RET(ctx, rv, "Cannot generate key: 'CREATE' authentication failed");

  rv = sc_select_file(p15card->card, &key_info->path, &prkf);
  LOG_TEST_RET(ctx, rv, "Failed to generate key: cannot select private key file");

  /* In the private key DF create the temporary public RSA file. */
  rv = cosm_get_temporary_public_key_file(p15card->card, prkf, &tmpf);
  if (rv != SC_SUCCESS) {
    sc_file_free(prkf);
    LOG_TEST_RET(ctx, rv, "Error while getting temporary public key file");
  }

  rv = sc_pkcs15init_create_file(profile, p15card, tmpf);
  if (rv != SC_SUCCESS) {
    sc_file_free(prkf);
    sc_file_free(tmpf);
    LOG_TEST_RET(ctx, rv, "cosm_generate_key() failed to create temporary public key EF");
  }

  memset(&args, 0, sizeof(args));
  args.id_prv = prkf->id;
  args.id_pub = tmpf->id;
  args.exponent = 0x10001;
  args.key_bits = key_info->modulus_length;
  args.pubkey_len = key_info->modulus_length / 8;
  args.pubkey = malloc(key_info->modulus_length / 8);
  if (!args.pubkey) {
    sc_file_free(prkf);
    sc_file_free(tmpf);
    LOG_TEST_RET(ctx, SC_ERROR_OUT_OF_MEMORY, "cosm_generate_key() cannot allocate pubkey");
  }

  rv = sc_card_ctl(p15card->card, SC_CARDCTL_OBERTHUR_GENERATE_KEY, &args);
  if (rv != SC_SUCCESS) {
    sc_file_free(prkf);
    sc_file_free(tmpf);
    free(args.pubkey);
  }
  LOG_TEST_RET(ctx, rv, "cosm_generate_key() CARDCTL_OBERTHUR_GENERATE_KEY failed");

  /* extract public key */
  pubkey->algorithm = SC_ALGORITHM_RSA;
  pubkey->u.rsa.modulus.len   = key_info->modulus_length / 8;
  pubkey->u.rsa.modulus.data  = malloc(key_info->modulus_length / 8);
  if (!pubkey->u.rsa.modulus.data) {
    sc_file_free(prkf);
    sc_file_free(tmpf);
    free(args.pubkey);
    LOG_TEST_RET(ctx, SC_ERROR_OUT_OF_MEMORY, "cosm_generate_key() cannot allocate modulus buf");
  }

  /* FIXME and if the exponent length is not 3? */
  pubkey->u.rsa.exponent.len  = 3;
  pubkey->u.rsa.exponent.data = malloc(3);
  if (!pubkey->u.rsa.exponent.data) {
    sc_file_free(prkf);
    sc_file_free(tmpf);
    free(args.pubkey);
    free(pubkey->u.rsa.modulus.data);
    LOG_TEST_RET(ctx, SC_ERROR_OUT_OF_MEMORY, "cosm_generate_key() cannot allocate exponent buf");
  }
  memcpy(pubkey->u.rsa.exponent.data, "\x01\x00\x01", 3);
  memcpy(pubkey->u.rsa.modulus.data, args.pubkey, args.pubkey_len);

  key_info->key_reference = prkf->path.value[prkf->path.len - 1] & 0xFF;
  key_info->path = prkf->path;

  sc_log(ctx,  "cosm_generate_key() now delete temporary public key");
  rv =  cosm_delete_file(p15card, profile, tmpf);

  sc_file_free(tmpf);
  sc_file_free(prkf);
  free(args.pubkey);

  LOG_FUNC_RETURN(ctx, rv);
}


/*
 * Create private key file
 */
static int
cosm_create_key(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_object *object)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_pkcs15_prkey_info *key_info = (struct sc_pkcs15_prkey_info *)object->data;
  struct sc_file *file = NULL;
  int rv = 0;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  if (object->type != SC_PKCS15_TYPE_PRKEY_RSA)
    LOG_TEST_RET(ctx, SC_ERROR_NOT_SUPPORTED, "Create key failed: RSA only supported");

  if (key_info->path.len < 2)
    LOG_TEST_RET(ctx, SC_ERROR_OBJECT_NOT_VALID, "The path needs to be at least to bytes long");

  sc_log(ctx,  "create private key ID:%s",  sc_pkcs15_print_id(&key_info->id));
  /* Here, the path of private key file should be defined.
   * Nevertheless, we need to instantiate private key to get the ACLs. */
  rv = cosm_new_file(profile, p15card->card, SC_PKCS15_TYPE_PRKEY_RSA, key_info->key_reference, &file);
  LOG_TEST_RET(ctx, rv, "Cannot create key: failed to allocate new key object");

  file->size = key_info->modulus_length;
  memcpy(&file->path, &key_info->path, sizeof(file->path));
  file->id = file->path.value[file->path.len - 2] * 0x100
        + file->path.value[file->path.len - 1];

  sc_log(ctx,  "Path of private key file to create %s", sc_print_path(&file->path));

  rv = sc_select_file(p15card->card, &file->path, NULL);
  if (rv == 0)   {
    rv = cosm_delete_file(p15card, profile, file);
    SC_TEST_GOTO_ERR(ctx, SC_LOG_DEBUG_VERBOSE, rv, "Failed to delete private key file");
  }
  else if (rv != SC_ERROR_FILE_NOT_FOUND)    {
    SC_TEST_GOTO_ERR(ctx, SC_LOG_DEBUG_VERBOSE, rv, "Select private key file error");
  }

  rv = sc_pkcs15init_create_file(profile, p15card, file);
  SC_TEST_GOTO_ERR(ctx, SC_LOG_DEBUG_VERBOSE, rv, "Failed to create private key file");

  key_info->key_reference = file->path.value[file->path.len - 1];

err:
  sc_file_free(file);

  LOG_FUNC_RETURN(ctx, rv);
}


/*
 * Store a private key
 */
static int
cosm_store_key(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_object *object,
    struct sc_pkcs15_prkey *prkey)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_pkcs15_prkey_info *key_info = (struct sc_pkcs15_prkey_info *)object->data;
  struct sc_file *file = NULL;
  struct sc_cardctl_oberthur_updatekey_info update_info;
  int rv = 0;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);
  if (object->type != SC_PKCS15_TYPE_PRKEY_RSA || prkey->algorithm != SC_ALGORITHM_RSA)
    LOG_TEST_RET(ctx, SC_ERROR_NOT_SUPPORTED, "Store key failed: RSA only supported");

  sc_log(ctx,  "store key with ID:%s and path:%s", sc_pkcs15_print_id(&key_info->id),
            sc_print_path(&key_info->path));

  rv = sc_select_file(p15card->card, &key_info->path, &file);
  LOG_TEST_RET(ctx, rv, "Cannot store key: select key file failed");

  rv = sc_pkcs15init_authenticate(profile, p15card, file, SC_AC_OP_UPDATE);
  LOG_TEST_RET(ctx, rv, "No authorisation to store private key");

  if (key_info->id.len > sizeof(update_info.id))
     LOG_FUNC_RETURN(ctx, SC_ERROR_INVALID_ARGUMENTS);

  memset(&update_info, 0, sizeof(update_info));
  update_info.type = SC_CARDCTL_OBERTHUR_KEY_RSA_CRT;
  update_info.data = (void *)&prkey->u.rsa;
  update_info.data_len = sizeof(void *);
  update_info.id_len = key_info->id.len;
  memcpy(update_info.id, key_info->id.value, update_info.id_len);

  rv = sc_card_ctl(p15card->card, SC_CARDCTL_OBERTHUR_UPDATE_KEY, &update_info);
  LOG_TEST_RET(ctx, rv, "Cannot update private key");

  sc_file_free(file);

  LOG_FUNC_RETURN(ctx, rv);
}


#ifdef ENABLE_OPENSSL
static int
cosm_emu_update_dir (struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_app_info *info)
{
  SC_FUNC_CALLED(p15card->card->ctx, 1);
  /* No DIR file in the native Oberthur card */
  SC_FUNC_RETURN(p15card->card->ctx, 1, SC_SUCCESS);
}


static int
cosm_emu_update_any_df(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    unsigned op, struct sc_pkcs15_object *object)
{
  struct sc_context *ctx = p15card->card->ctx;
  int rv = SC_ERROR_NOT_SUPPORTED;

  SC_FUNC_CALLED(ctx, 1);
  switch(op)   {
  case SC_AC_OP_ERASE:
    sc_log(ctx,  "Update DF; erase object('%.*s',type:%X)", (int) sizeof object->label, object->label, object->type);
    rv = awp_update_df_delete(p15card, profile, object);
    break;
  case SC_AC_OP_CREATE:
    sc_log(ctx,  "Update DF; create object('%.*s',type:%X)", (int) sizeof object->label, object->label, object->type);
    rv = awp_update_df_create(p15card, profile, object);
    break;
  }
  SC_FUNC_RETURN(ctx, 1, rv);
}


static int
cosm_emu_update_tokeninfo(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_tokeninfo *tinfo)
{
  struct sc_context *ctx = p15card->card->ctx;
  struct sc_file *file = NULL;
  int rv, flags = 0;
  size_t label_len;
  unsigned char *buf = NULL;

  SC_FUNC_CALLED(ctx, 1);

  if (sc_profile_get_file(profile, COSM_TITLE"-token-info", &file))
    LOG_TEST_RET(ctx, SC_ERROR_INCONSISTENT_PROFILE, "cannot find "COSM_TITLE"-token-info");

  buf = calloc(1, file->size);
  if (!buf) {
    sc_file_free(file);
    SC_FUNC_RETURN(ctx, 1, SC_ERROR_OUT_OF_MEMORY);
  }

  label_len = strlen(tinfo->label) > (file->size - 4) ? (file->size - 4) : strlen(tinfo->label);
  memcpy(buf, tinfo->label, label_len);
  memset(buf  + label_len, ' ', file->size - 4 - label_len);

  /*  current PKCS#11 flags should be read from the token,
   *  but for simplicity assume that user-pin is already initialised -- Andre 2010-10-05
   */
  flags = COSM_TOKEN_FLAG_TOKEN_INITIALIZED
    | COSM_TOKEN_FLAG_USER_PIN_INITIALIZED
    | COSM_TOKEN_FLAG_LOGIN_REQUIRED
    | COSM_TOKEN_FLAG_PRN_GENERATION;

  memset(buf + file->size - 4, 0, 4);
  *(buf + file->size - 1) = flags % 0x100;
  *(buf + file->size - 2) = (flags % 0x10000) / 0x100;

  sc_log(ctx,  "Update token info (label:'%s',flags:%X,p15card->flags:%X)", buf, flags, p15card->flags);
  rv = sc_pkcs15init_update_file(profile, p15card, file, buf, file->size);
  free(buf);
  sc_file_free(file);

  if (rv > 0)
    rv = 0;

  SC_FUNC_RETURN(ctx, 1, rv);
}


static int
cosm_emu_write_info(struct sc_profile *profile, struct sc_pkcs15_card *p15card,
    struct sc_pkcs15_object *pin_obj)
{
  SC_FUNC_CALLED(p15card->card->ctx, 1);
  /* No OpenSC Info file in the native Oberthur card */
  SC_FUNC_RETURN(p15card->card->ctx, 1, SC_SUCCESS);
}
#endif


static struct sc_pkcs15init_operations
sc_pkcs15init_oberthur_operations = {
  cosm_erase_card,
  NULL,       /* init_card  */
  cosm_create_dir,    /* create_dir */
  NULL,       /* create_domain */
  cosm_select_pin_reference,
  cosm_create_pin,
  NULL,       /* select_key_reference */
  cosm_create_key,    /* create_key */
  cosm_store_key,     /* store_key */
  cosm_generate_key,    /* generate_key */
  NULL,
  NULL,       /* encode private/public key */
  NULL,       /* finalize_card */
  NULL,       /* delete_object */
#ifdef ENABLE_OPENSSL
  cosm_emu_update_dir,
  cosm_emu_update_any_df,
  cosm_emu_update_tokeninfo,
  cosm_emu_write_info,
  NULL,
  NULL
#else
  NULL, NULL, NULL, NULL, NULL,
  NULL
#endif
};

struct sc_pkcs15init_operations *
sc_pkcs15init_get_oberthur_ops(void)
{
  return &sc_pkcs15init_oberthur_operations;
}

Coverage Report

Created: 2025-11-16 06:12