/src/opensc/src/libopensc/pkcs15-coolkey.c

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/*
 * partial PKCS15 emulation for Coolkey cards
 *
 * Copyright (C) 2005,2006,2007,2008,2009,2010
 *               Douglas E. Engert <deengert@anl.gov>
 *               2004, Nils Larsch <larsch@trustcenter.de>
 * Copyright (C) 2006, Identity Alliance,
 *               Thomas Harning <thomas.harning@identityalliance.com>
 * Copyright (C) 2007, EMC, Russell Larner <rlarner@rsa.com>
 * Copyright (C) 2016, Red Hat, Inc.
 *
 * Coolkey driver author: Robert Relyea <rrelyea@redhat.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
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>

#include "internal.h"
#include "cardctl.h"
#include "asn1.h"
#include "pkcs15.h"
#include "../pkcs11/pkcs11.h"

typedef struct pdata_st {
  const char *id;
  const char *label;
  const char *path;
  int         ref;
  int         type;
  unsigned int maxlen;
  unsigned int minlen;
  unsigned int storedlen;
  int         flags;
  int         tries_left;
  const unsigned char  pad_char;
  int         obj_flags;
} pindata;

static int coolkey_detect_card(sc_pkcs15_card_t *p15card)
{
  sc_card_t *card = p15card->card;

  SC_FUNC_CALLED(card->ctx, SC_LOG_DEBUG_VERBOSE);
  if (card->type < SC_CARD_TYPE_COOLKEY_GENERIC
    || card->type >= SC_CARD_TYPE_COOLKEY_GENERIC+1000)
    return SC_ERROR_INVALID_CARD;
  return SC_SUCCESS;
}

static int
coolkey_get_object(sc_card_t *card, unsigned long object_id, sc_cardctl_coolkey_object_t **obj) {
  sc_cardctl_coolkey_find_object_t fobj;
  int r;

  fobj.type = SC_CARDCTL_COOLKEY_FIND_BY_ID;
  fobj.find_id = object_id;
  fobj.obj = NULL;
  r = sc_card_ctl(card, SC_CARDCTL_COOLKEY_FIND_OBJECT, &fobj);
  if (r < 0) {
    return r;
  }
  *obj = fobj.obj;
  return SC_SUCCESS;
}


/*
 * fetch attributes from an object
 */
static int
coolkey_get_attribute(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_ATTRIBUTE_TYPE type, const u8 **val, size_t *val_len, u8 *data_type) {
  sc_cardctl_coolkey_attribute_t attribute;
  int r;

  attribute.object = obj;
  attribute.attribute_type = type;

  r = sc_card_ctl(card, SC_CARDCTL_COOLKEY_GET_ATTRIBUTE, &attribute);
  if (r < 0) {
    return r;
  }
  *val = attribute.attribute_value;
  *val_len = attribute.attribute_length;
  if (data_type) {
    *data_type = attribute.attribute_data_type;
  }
  return SC_SUCCESS;
}

static int
coolkey_find_matching_cert(sc_card_t *card, sc_cardctl_coolkey_object_t *in_obj, sc_cardctl_coolkey_object_t **cert_obj) {
  sc_cardctl_coolkey_find_object_t fobj;
  sc_cardctl_coolkey_attribute_t template[2];
  u8 obj_class[4];
  int r;

  /* we are searching for certs .. */
  template[0].attribute_type = CKA_CLASS;
  template[0].attribute_data_type = SC_CARDCTL_COOLKEY_ATTR_TYPE_ULONG;
  template[0].attribute_length = sizeof(obj_class);
  template[0].attribute_value = obj_class;
  ulong2bebytes(obj_class, CKO_CERTIFICATE);

  /* fetch the current object's CKA_ID */
  template[1].attribute_type = CKA_ID;
  template[1].object = in_obj;
  r = sc_card_ctl(card, SC_CARDCTL_COOLKEY_GET_ATTRIBUTE, &template[1]);
  if (r < 0) {
    return r;
  }
  template[0].object = NULL; /*paranoia */
  template[1].object = NULL; /*paranoia */

  /* now find the cert that has the ID */
  fobj.type = SC_CARDCTL_COOLKEY_FIND_BY_TEMPLATE;
  fobj.obj = NULL;
  fobj.coolkey_template = &template[0];
  fobj.template_count=2;
  r = sc_card_ctl(card, SC_CARDCTL_COOLKEY_FIND_OBJECT, &fobj);
  if (r < 0) {
    return r;
  }
  *cert_obj = fobj.obj;
  return SC_SUCCESS;
}

static int
coolkey_get_attribute_ulong(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_ATTRIBUTE_TYPE type, CK_ULONG *value)
{
  const u8 *val = NULL;
  size_t val_len = 0;
  u8 data_type = 0;
  int r;

  r  = coolkey_get_attribute(card, obj, type, &val, &val_len, &data_type);
  if (r < 0) {
    return r;
  }
  if ((data_type != SC_CARDCTL_COOLKEY_ATTR_TYPE_ULONG) &&
      (val_len != sizeof(CK_ULONG))) {
    return SC_ERROR_CORRUPTED_DATA;
  }
  *value = bebytes2ulong(val);
  return SC_SUCCESS;
}

static int
coolkey_get_attribute_boolean(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_ATTRIBUTE_TYPE attr_type)
{
  int r;
  const u8 *val = NULL;
  size_t val_len = 0;

  r = coolkey_get_attribute(card, obj, attr_type, &val, &val_len, NULL);
  if (r < 0) {
    /* attribute not valid for this object, set boolean to false */
    return 0;
  }
  if ((val_len == 1) && (*val == 1)) {
    return 1;
  }
  return 0;
}

static int
coolkey_get_attribute_bytes(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_ATTRIBUTE_TYPE type, u8 *data, size_t *data_len, size_t max_data_len)
{
  const u8 *val;
  size_t val_len = 0;
  int r;

  r = coolkey_get_attribute(card, obj, type, &val, &val_len, NULL);
  if (r < 0) {
    return r;
  }
  if (val_len > max_data_len) {
    val_len = max_data_len;
  }
  memcpy(data, val, val_len);
  *data_len = val_len;
  return SC_SUCCESS;
}

static int
coolkey_get_attribute_bytes_alloc(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_ATTRIBUTE_TYPE type, u8 **data, size_t *data_len)
{
  const u8 *val;
  size_t val_len;
  int r;

  r = coolkey_get_attribute(card, obj, type, &val, &val_len, NULL);
  if (r < 0) {
    return r;
  }
  *data = malloc(val_len);
  if (*data == NULL) {
    return SC_ERROR_OUT_OF_MEMORY;
  }
  memcpy(*data, val, val_len);
  *data_len = val_len;
  return SC_SUCCESS;
}

static int
coolkey_get_id(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, struct sc_pkcs15_id *id)
{
  return coolkey_get_attribute_bytes(card, obj, CKA_ID, id->value , &id->len, sizeof(id->value));
}

/*
 * A number of opensc structure have the same layout, use a common function to fill them
 * int:
 *     structure name      first parameter                 second parameter
 *     sc_lv_data          unsigned char * value           size_t len
 *     sc_pkcs15_data         u8 *data                     size_t data_len
 *     sc_pkcs15_bignum       u8 *data                     size_t len
 *     sc_pkcs15_der          u8 *value                    size_t len
 *     sc_pkcs15_u8           u8 *value                    size_t len
 *
 * The following can properly assign all of them
 */
int
coolkey_get_attribute_lv(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_ATTRIBUTE_TYPE type, void *ptr)
{
  struct sc_pkcs15_data *item = (struct sc_pkcs15_data *)ptr;
  return coolkey_get_attribute_bytes_alloc(card, obj, type, &item->data, &item->data_len);
}

#define COOLKEY_ID_CERT ((unsigned long)'c')
#define COOLKEY_ID_KEY ((unsigned long)'k')
#define COOLKEY_ID_CERT_DATA ((unsigned long)'C')

static unsigned long
coolkey_get_object_type(unsigned long object_id) { return ((object_id >> 24 ) & 0xff); }

static unsigned long
coolkey_make_new_id(unsigned long object_id, unsigned long id_type)
{ return ((object_id  & 0x00ffffffUL)|(id_type << 24)); }


/*
 * We need cert data to fill in some of our keys. Also, some older tokens store the cert data in a separate
 * object from the rest of the cert attributes. This function handles both of these complications
 */
static int
coolkey_get_certificate(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, struct sc_pkcs15_der *cert)
{
  sc_cardctl_coolkey_object_t *cert_obj;
  unsigned long object_id;
  int r;

  cert_obj = obj;
  if (coolkey_get_object_type(obj->id) != COOLKEY_ID_CERT) {
    r = coolkey_find_matching_cert(card, obj, &cert_obj);
    if (r < 0) {
      return r;
    }
  }
  r = coolkey_get_attribute_lv(card, cert_obj, CKA_VALUE, cert);
  if (r == SC_ERROR_DATA_OBJECT_NOT_FOUND) {
    object_id = coolkey_make_new_id(cert_obj->id, COOLKEY_ID_CERT_DATA);
    r = coolkey_get_object(card, object_id, &cert_obj);
    if (r < 0) {
      return r;
    }
    /* fill in cert data */
    cert->value = malloc(cert_obj->length);
    if (cert->value == NULL) {
      return SC_ERROR_OUT_OF_MEMORY;
    }
    memcpy(cert->value, cert_obj->data, cert_obj->length);
    cert->len = cert_obj->length;
    return SC_SUCCESS;
  }
  return r;
}



struct coolkey_attr_flags {
  CK_ATTRIBUTE_TYPE attribute_type;
  unsigned int pkcs15_flags;
};

static struct coolkey_attr_flags usage_table[] = {
  { CKA_ENCRYPT,          SC_PKCS15_PRKEY_USAGE_ENCRYPT       },
  { CKA_DECRYPT,          SC_PKCS15_PRKEY_USAGE_DECRYPT       },
  { CKA_SIGN,             SC_PKCS15_PRKEY_USAGE_SIGN          },
  { CKA_SIGN_RECOVER,     SC_PKCS15_PRKEY_USAGE_SIGNRECOVER   },
  { CKA_WRAP,             SC_PKCS15_PRKEY_USAGE_WRAP          },
  { CKA_UNWRAP,           SC_PKCS15_PRKEY_USAGE_UNWRAP        },
  { CKA_VERIFY,           SC_PKCS15_PRKEY_USAGE_VERIFY        },
  { CKA_VERIFY_RECOVER,   SC_PKCS15_PRKEY_USAGE_VERIFYRECOVER },
  { CKA_DERIVE,           SC_PKCS15_PRKEY_USAGE_DERIVE        }
};

static struct coolkey_attr_flags access_table[] = {
  { CKA_SENSITIVE,        SC_PKCS15_PRKEY_ACCESS_SENSITIVE       },
    { CKA_EXTRACTABLE,      SC_PKCS15_PRKEY_ACCESS_EXTRACTABLE     },
    { CKA_ALWAYS_SENSITIVE, SC_PKCS15_PRKEY_ACCESS_ALWAYSSENSITIVE },
    { CKA_NEVER_EXTRACTABLE,SC_PKCS15_PRKEY_ACCESS_NEVEREXTRACTABLE},
    { CKA_LOCAL,            SC_PKCS15_PRKEY_ACCESS_LOCAL           }
};

static struct coolkey_attr_flags flag_table[] = {
  { CKA_PRIVATE,          SC_PKCS15_CO_FLAG_PRIVATE       },
  { CKA_MODIFIABLE,       SC_PKCS15_CO_FLAG_MODIFIABLE    }
};

static int usage_table_size = sizeof(usage_table)/sizeof(usage_table[0]);
static int access_table_size = sizeof(access_table)/sizeof(access_table[0]);
static int flag_table_size = sizeof(flag_table)/sizeof(flag_table[0]);

static int
coolkey_set_bool_flags(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, unsigned int *flags_ptr, struct coolkey_attr_flags *table, int table_size)
{
  unsigned int flags = 0;
  int i;

  for (i=0; i< table_size; i++) {
    if (coolkey_get_attribute_boolean(card, obj, table[i].attribute_type)) {
      flags |= table[i].pkcs15_flags;
    }
  }
  *flags_ptr = flags;
  return SC_SUCCESS;
}

/* map a cert usage and algorithm to public and private key usages */
static int
coolkey_get_usage(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, unsigned int *usage_ptr)
{
  return coolkey_set_bool_flags(card, obj, usage_ptr, usage_table, usage_table_size);
}

/* map a cert usage and algorithm to public and private key usages */
static int
coolkey_get_flags(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, unsigned int *flag_ptr)
{
  return coolkey_set_bool_flags(card, obj, flag_ptr, flag_table, flag_table_size);
}

static int
coolkey_get_access(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, unsigned int *access_ptr)
{
  return coolkey_set_bool_flags(card, obj, access_ptr, access_table, access_table_size);
}


/*
 * turn a coolkey object into a pkcss 15 pubkey. object should already be type
 * CKO_PUBLIC_KEY */
static sc_pkcs15_pubkey_t *
coolkey_make_public_key(sc_card_t *card, sc_cardctl_coolkey_object_t *obj, CK_KEY_TYPE key_type)
{
  sc_pkcs15_pubkey_t *key;
  int r;

  key = calloc(1, sizeof(struct sc_pkcs15_pubkey));
  if (!key)
    return NULL;
  switch (key_type) {
  case CKK_RSA:
    key->algorithm = SC_ALGORITHM_RSA;
    r = coolkey_get_attribute_lv(card, obj, CKA_MODULUS, &key->u.rsa.modulus);
    if (r != SC_SUCCESS) {
      goto fail;
    }
    r = coolkey_get_attribute_lv(card, obj, CKA_PUBLIC_EXPONENT, &key->u.rsa.exponent);
    if (r != SC_SUCCESS) {
      goto fail;
    }
    break;
  case CKK_EC:
    key->algorithm = SC_ALGORITHM_EC;
    r = coolkey_get_attribute_bytes_alloc(card, obj, CKA_EC_POINT, &key->u.ec.ecpointQ.value, &key->u.ec.ecpointQ.len);
      if(r < 0) {
      goto fail;
    }
    r = coolkey_get_attribute_bytes_alloc(card, obj, CKA_EC_PARAMS,
        &key->u.ec.params.der.value, &key->u.ec.params.der.len);
    if (r < 0) {
      goto fail;
    }
    r = sc_pkcs15_fix_ec_parameters(card->ctx, &key->u.ec.params);
    if (r < 0) {
      goto fail;
    }
    break;
  }
  return key;
fail:
  sc_pkcs15_free_pubkey(key);

  /* now parse the DER cert */
  return NULL;
}


static sc_pkcs15_pubkey_t *
coolkey_get_public_key_from_certificate(sc_pkcs15_card_t *p15card, sc_cardctl_coolkey_object_t *obj)
{
  sc_pkcs15_cert_info_t cert_info;
  sc_pkcs15_cert_t *cert_out = NULL;
  sc_pkcs15_pubkey_t *key = NULL;
  int r, private_obj;
  unsigned int flags;

  memset(&cert_info, 0, sizeof(cert_info));

  r = coolkey_get_certificate(p15card->card, obj, &cert_info.value);
  if (r < 0) {
    goto fail;
  }

  coolkey_get_flags(p15card->card, obj, &flags);
  private_obj = flags & SC_PKCS15_CO_FLAG_PRIVATE;
  r = sc_pkcs15_read_certificate(p15card, &cert_info, private_obj, &cert_out);
  if (r < 0) {
    goto fail;
  }
  key = cert_out->key;
  cert_out->key = NULL; /* adopt the key from the cert */
fail:
  if (cert_out) {
    sc_pkcs15_free_certificate(cert_out);
  }
  if (cert_info.value.value) {
    free(cert_info.value.value);
  }
  return key;
}

static sc_pkcs15_pubkey_t *
coolkey_get_public_key(sc_pkcs15_card_t *p15card, sc_cardctl_coolkey_object_t *obj, CK_KEY_TYPE key_type)
{
  sc_pkcs15_pubkey_t *key;

  key = coolkey_make_public_key(p15card->card, obj, key_type);
  if (key) {
    return key;
  }
  return coolkey_get_public_key_from_certificate(p15card, obj);
}

static int sc_pkcs15emu_coolkey_init(sc_pkcs15_card_t *p15card)
{
  int use_pin_cache_backup = p15card->opts.use_pin_cache;
  static const pindata pins[] = {
    { "1", NULL, "", 0x00,
      SC_PKCS15_PIN_TYPE_ASCII_NUMERIC,
      32, 4, 32,
      SC_PKCS15_PIN_FLAG_INITIALIZED,
      -1, 0xFF,
      SC_PKCS15_CO_FLAG_PRIVATE },
    { NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0}
  };

  /*
   * The size of the key or the algid is not really known
   * but can be derived from the certificates.
   * the cert, pubkey and privkey are a set.
   * Key usages bits taken from certificate key usage extension.
   */

  int    r, i;
  sc_card_t *card = p15card->card;
  sc_serial_number_t serial;
  int count;
  struct sc_pkcs15_object *obj;

  SC_FUNC_CALLED(card->ctx, SC_LOG_DEBUG_VERBOSE);

  memset(&serial, 0, sizeof(serial));

  /* coolkey caches a nonce once it logs in, don't keep the pin around. The card will
   * stay logged in until it's been pulled from the reader, in which case you want to reauthenticate
   * anyway */
  p15card->opts.use_pin_cache = 0;

  /* get the token info from the card */
  r = sc_card_ctl(card, SC_CARDCTL_COOLKEY_GET_TOKEN_INFO, p15card->tokeninfo);
  if (r < 0) {
    /* put some defaults in if we didn't succeed */
    set_string(&p15card->tokeninfo->label, "Coolkey");
    set_string(&p15card->tokeninfo->manufacturer_id, "Unknown");
    set_string(&p15card->tokeninfo->serial_number, "00000000");
  }

  /* set pins */
  sc_log(card->ctx,  "Coolkey adding pins...");
  for (i = 0; pins[i].id; i++) {
    struct sc_pkcs15_auth_info pin_info;
    struct sc_pkcs15_object   pin_obj;
    const char * label;

    memset(&pin_info, 0, sizeof(pin_info));
    memset(&pin_obj,  0, sizeof(pin_obj));

    pin_info.auth_type = SC_PKCS15_PIN_AUTH_TYPE_PIN;
    sc_pkcs15_format_id(pins[i].id, &pin_info.auth_id);
    pin_info.attrs.pin.reference     = pins[i].ref;
    pin_info.attrs.pin.flags         = pins[i].flags;
    pin_info.attrs.pin.type          = pins[i].type;
    pin_info.attrs.pin.min_length    = pins[i].minlen;
    pin_info.attrs.pin.stored_length = pins[i].storedlen;
    pin_info.attrs.pin.max_length    = pins[i].maxlen;
    pin_info.attrs.pin.pad_char      = pins[i].pad_char;
    sc_format_path(pins[i].path, &pin_info.path);
    pin_info.tries_left    = -1;

    label = pins[i].label? pins[i].label : p15card->tokeninfo->label;
    sc_log(card->ctx,  "Coolkey Adding pin %d label=%s",i, label);
    strncpy(pin_obj.label, label, SC_PKCS15_MAX_LABEL_SIZE - 1);
    pin_obj.flags = pins[i].obj_flags;

    r = sc_pkcs15emu_add_pin_obj(p15card, &pin_obj, &pin_info);
    LOG_TEST_GOTO_ERR(card->ctx, r, "Can not add pin object.");
  }

  /* set other objects */
  r = (card->ops->card_ctl)(card, SC_CARDCTL_COOLKEY_INIT_GET_OBJECTS, &count);
  LOG_TEST_GOTO_ERR(card->ctx, r, "Can not initiate objects.");

  sc_log(card->ctx,  "Iterating over %d objects", count);
  for (i = 0; i < count; i++) {
    struct sc_cardctl_coolkey_object     coolkey_obj;
    struct sc_pkcs15_object    obj_obj;
    struct sc_pkcs15_cert_info cert_info = {0};
    struct sc_pkcs15_pubkey_info pubkey_info;
    struct sc_pkcs15_prkey_info prkey_info;
    sc_pkcs15_pubkey_t *key = NULL;
    void *obj_info = NULL;
    int obj_type = 0;
    CK_KEY_TYPE key_type;
    CK_OBJECT_CLASS obj_class;
    size_t len;

    r = (card->ops->card_ctl)(card, SC_CARDCTL_COOLKEY_GET_NEXT_OBJECT, &coolkey_obj);
    LOG_TEST_GOTO_ERR(card->ctx, r, "Can not get next object from card.");
    sc_log(card->ctx, "Loading object %d", i);
    memset(&obj_obj, 0, sizeof(obj_obj));
    /* coolkey applets have label only on the certificates,
     * but we should copy it also to the keys matching the same ID */
    coolkey_get_attribute_bytes(card, &coolkey_obj, CKA_LABEL, (u8 *)obj_obj.label, &len, sizeof(obj_obj.label));
    coolkey_get_flags(card, &coolkey_obj, &obj_obj.flags);
    if (obj_obj.flags & SC_PKCS15_CO_FLAG_PRIVATE) {
      sc_pkcs15_format_id(pins[0].id, &obj_obj.auth_id);
    }

    r = coolkey_get_attribute_ulong(card, &coolkey_obj, CKA_CLASS, &obj_class);
    if (r < 0) {
      goto fail;
    }
    switch (obj_class) {
    case CKO_PRIVATE_KEY:
      sc_log(card->ctx, "Processing private key object %d", i);
      r = coolkey_get_attribute_ulong(card, &coolkey_obj, CKA_KEY_TYPE, &key_type);
      /* default to CKK_RSA */
      if (r == SC_ERROR_DATA_OBJECT_NOT_FOUND) {
        key_type = CKK_RSA;
        r = SC_SUCCESS;
      }
      if (r < 0) {
        goto fail;
      }
      /* set the info values */
      obj_info = &prkey_info;
      memset(&prkey_info, 0, sizeof(prkey_info));
      coolkey_get_id(card, &coolkey_obj, &prkey_info.id);
      prkey_info.path = coolkey_obj.path;
      prkey_info.key_reference = (int)coolkey_obj.id;
      prkey_info.native = 1;
      coolkey_get_usage(card, &coolkey_obj, &prkey_info.usage);
      coolkey_get_access(card, &coolkey_obj, &prkey_info.access_flags);
      key = coolkey_get_public_key(p15card, &coolkey_obj, key_type);
      if (key_type == CKK_RSA) {
        obj_type = SC_PKCS15_TYPE_PRKEY_RSA;
        if (key) {
          prkey_info.modulus_length = key->u.rsa.modulus.len*8;
        }
      } else if (key_type == CKK_EC) {
        obj_type = SC_PKCS15_TYPE_PRKEY_EC;
        if (key) {
          prkey_info.field_length = key->u.ec.params.field_length;
        }
      } else {
        goto fail;
      }
      break;

    case CKO_PUBLIC_KEY:
      sc_log(card->ctx, "Processing public key object %d", i);
      r = coolkey_get_attribute_ulong(card, &coolkey_obj, CKA_KEY_TYPE, &key_type);
      /* default to CKK_RSA */
      if (r == SC_ERROR_DATA_OBJECT_NOT_FOUND) {
        key_type = CKK_RSA;
        r = SC_SUCCESS;
      }
      if (r < 0) {
        goto fail;
      }
      key = coolkey_get_public_key(p15card, &coolkey_obj, key_type);
      if (key == NULL) {
        goto fail;
      }
      /* set the info values */
      obj_info = &pubkey_info;
      memset(&pubkey_info, 0, sizeof(pubkey_info));
      r = sc_pkcs15_encode_pubkey_as_spki(card->ctx, key, &pubkey_info.direct.spki.value,
        &pubkey_info.direct.spki.len);
      if (r < 0)
        goto fail;
      coolkey_get_id(card, &coolkey_obj, &pubkey_info.id);
      pubkey_info.path = coolkey_obj.path;
      pubkey_info.native = 1;
      pubkey_info.key_reference = (int)coolkey_obj.id;
      coolkey_get_usage(card, &coolkey_obj, &pubkey_info.usage);
      coolkey_get_access(card, &coolkey_obj, &pubkey_info.access_flags);
      if (key_type == CKK_RSA) {
        obj_type = SC_PKCS15_TYPE_PUBKEY_RSA;
        pubkey_info.modulus_length = key->u.rsa.modulus.len*8;
      } else if (key_type == CKK_EC) {
        obj_type = SC_PKCS15_TYPE_PUBKEY_EC;
        pubkey_info.field_length = key->u.ec.params.field_length;
      } else {
        free(pubkey_info.direct.spki.value);
        goto fail;
      }
      /* set the obj values */
      obj_obj.emulated = key;
      key = NULL;
      break;

    case CKO_CERTIFICATE:
      sc_log(card->ctx, "Processing certificate object %d", i);
      obj_info = &cert_info;
      memset(&cert_info, 0, sizeof(cert_info));
      coolkey_get_id(card, &coolkey_obj, &cert_info.id);
      cert_info.path = coolkey_obj.path;
      obj_type = SC_PKCS15_TYPE_CERT_X509;

      /* following will find the cached cert in cert_info */
      r = coolkey_get_certificate(card, &coolkey_obj, &cert_info.value);
      if (r < 0) {
        goto fail;
      }
      break;


    default:
      /* no other recognized types which are stored 'on card' */
      sc_log(card->ctx, "Unknown object type %lu, skipping", obj_class);
      continue;
    }

    r = sc_pkcs15emu_object_add(p15card, obj_type, &obj_obj, obj_info);
    if (r != SC_SUCCESS)
      sc_log(card->ctx, "sc_pkcs15emu_object_add() returned %d", r);
fail:
    if (key) {
      sc_pkcs15_free_pubkey(key);
    }
    if (r != SC_SUCCESS) {
      free(cert_info.value.value);
    }
  }
  r = (card->ops->card_ctl)(card, SC_CARDCTL_COOLKEY_FINAL_GET_OBJECTS, &count);
  LOG_TEST_GOTO_ERR(card->ctx, r, "Can not finalize objects.");

  /* Iterate over all the created objects and fill missing labels */
  for (obj = p15card->obj_list; obj != NULL; obj = obj->next) {
    struct sc_pkcs15_id *id = NULL;
    struct sc_pkcs15_object *cert_object;

    /* label non-empty -- do not overwrite */
    if (obj->label[0] != '\0')
      continue;

    switch (obj->type & SC_PKCS15_TYPE_CLASS_MASK) {
    case SC_PKCS15_TYPE_PUBKEY:
      id = &((struct sc_pkcs15_pubkey_info *)obj->data)->id;
      break;
    case SC_PKCS15_TYPE_PRKEY:
      id = &((struct sc_pkcs15_prkey_info *)obj->data)->id;
      break;
    default:
      /* We do not care about other objects */
      continue;
    }
    r = sc_pkcs15_find_cert_by_id(p15card, id, &cert_object);
    if (r != 0)
      continue;

    sc_log(card->ctx, "Copy label \"%s\" from cert to key object",
      cert_object->label);
    memcpy(obj->label, cert_object->label, SC_PKCS15_MAX_LABEL_SIZE);
  }

  LOG_FUNC_RETURN(card->ctx, SC_SUCCESS);

err:
  sc_pkcs15_card_clear(p15card);
  p15card->opts.use_pin_cache = use_pin_cache_backup;

  LOG_FUNC_RETURN(card->ctx, r);
}

int
sc_pkcs15emu_coolkey_init_ex(sc_pkcs15_card_t *p15card,
    struct sc_aid *aid)
{
  sc_card_t      *card = p15card->card;
  sc_context_t    *ctx = card->ctx;
  int rv;

  LOG_FUNC_CALLED(ctx);

  rv = coolkey_detect_card(p15card);
  if (rv)
    LOG_FUNC_RETURN(ctx, SC_ERROR_WRONG_CARD);
  rv = sc_pkcs15emu_coolkey_init(p15card);

  LOG_FUNC_RETURN(ctx, rv);
}

Coverage Report

Created: 2025-08-26 06:43