/*

 * PKCS15 emulation layer for Oberthur card.

 *

 * Copyright (C) 2010, Viktor Tarasov <vtarasov@opentrust.com>

 * Copyright (C) 2005, Andrea Frigido <andrea@frisoft.it>

 * Copyright (C) 2005, Sirio Capizzi <graaf@virgilio.it>

 * Copyright (C) 2004, Antonino Iacono <ant_iacono@tin.it>

 * Copyright (C) 2003, Olaf Kirch <okir@suse.de>

 *

 * 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 "../common/compat_strlcpy.h"

#include "pkcs15.h"

#include "log.h"

#include "asn1.h"

#include "internal.h"

#ifdef ENABLE_OPENSSL

#include <openssl/bio.h>

#include <openssl/x509.h>

#include <openssl/x509v3.h>

#endif

#define OBERTHUR_ATTR_MODIFIABLE  0x0001

#define OBERTHUR_ATTR_TRUSTED   0x0002

#define OBERTHUR_ATTR_LOCAL   0x0004

#define OBERTHUR_ATTR_ENCRYPT   0x0008

#define OBERTHUR_ATTR_DECRYPT   0x0010

#define OBERTHUR_ATTR_SIGN    0x0020

#define OBERTHUR_ATTR_VERIFY    0x0040

#define OBERTHUR_ATTR_RSIGN   0x0080

#define OBERTHUR_ATTR_RVERIFY   0x0100

#define OBERTHUR_ATTR_WRAP    0x0200

#define OBERTHUR_ATTR_UNWRAP    0x0400

#define OBERTHUR_ATTR_DERIVE    0x0800

#define USAGE_PRV_ENC (SC_PKCS15_PRKEY_USAGE_ENCRYPT | SC_PKCS15_PRKEY_USAGE_DECRYPT |\

       SC_PKCS15_PRKEY_USAGE_WRAP | SC_PKCS15_PRKEY_USAGE_UNWRAP)

#define USAGE_PRV_AUT  SC_PKCS15_PRKEY_USAGE_SIGN

#define USAGE_PRV_SIGN  (SC_PKCS15_PRKEY_USAGE_SIGN | SC_PKCS15_PRKEY_USAGE_NONREPUDIATION)

#define USAGE_PUB_ENC (SC_PKCS15_PRKEY_USAGE_ENCRYPT | SC_PKCS15_PRKEY_USAGE_WRAP)

#define USAGE_PUB_AUT  SC_PKCS15_PRKEY_USAGE_VERIFY

#define USAGE_PUB_SIGN  (SC_PKCS15_PRKEY_USAGE_VERIFY | SC_PKCS15_PRKEY_USAGE_VERIFYRECOVER)

#define PIN_DOMAIN_LABEL  "SCM"

const unsigned char PinDomainID[3] = {0x53, 0x43, 0x4D};

#define AWP_PIN_DF    "3F005011"

#define AWP_TOKEN_INFO    "3F0050111000"

#define AWP_PUK_FILE    "3F0050112000"

#define AWP_CONTAINERS_MS "3F0050113000"

#define AWP_OBJECTS_LIST_PUB  "3F0050114000"

#define AWP_OBJECTS_LIST_PRV  "3F0050115000"

#define AWP_OBJECTS_DF_PUB  "3F0050119001"

#define AWP_OBJECTS_DF_PRV  "3F0050119002"

#define AWP_BASE_RSA_PRV  "3F00501190023000"

#define AWP_BASE_RSA_PUB  "3F00501190011000"

#define AWP_BASE_CERTIFICATE  "3F00501190012000"

#define BASE_ID_PUB_RSA   0x10

#define BASE_ID_CERT    0x20

#define BASE_ID_PRV_RSA   0x30

#define BASE_ID_PRV_DES   0x40

#define BASE_ID_PUB_DATA  0x50

#define BASE_ID_PRV_DATA  0x60

#define BASE_ID_PUB_DES   0x70

static int sc_pkcs15emu_oberthur_add_prvkey(struct sc_pkcs15_card *, unsigned, unsigned);

static int sc_pkcs15emu_oberthur_add_pubkey(struct sc_pkcs15_card *, unsigned, unsigned);

static int sc_pkcs15emu_oberthur_add_cert(struct sc_pkcs15_card *, unsigned);

static int sc_pkcs15emu_oberthur_add_data(struct sc_pkcs15_card *, unsigned, unsigned, int);

static int sc_oberthur_parse_tokeninfo (struct sc_pkcs15_card *, unsigned char *, size_t, int);

static int sc_oberthur_parse_containers (struct sc_pkcs15_card *, unsigned char *, size_t, int);

static int sc_oberthur_parse_publicinfo (struct sc_pkcs15_card *, unsigned char *, size_t, int);

static int sc_oberthur_parse_privateinfo (struct sc_pkcs15_card *, unsigned char *, size_t, int);

static int sc_awp_parse_df(struct sc_pkcs15_card *, struct sc_pkcs15_df *);

static void sc_awp_clear(struct sc_pkcs15_card *);

struct crypto_container {

  unsigned  id_pub;

  unsigned  id_prv;

  unsigned  id_cert;

};

struct container {

  char uuid[37];

  struct crypto_container exchange;

  struct crypto_container sign;

  struct container *next;

  struct container *prev;

};

struct container *Containers = NULL;

static struct {

  const char *name;

  const char *path;

  unsigned char *content;

  size_t len;

  int (*parser)(struct sc_pkcs15_card *, unsigned char *, size_t, int);

  int postpone_allowed;

} oberthur_infos[] = {

  /* Never change the following order */

  { "Token info",     AWP_TOKEN_INFO,   NULL, 0, sc_oberthur_parse_tokeninfo,   0},

  { "Containers MS",    AWP_CONTAINERS_MS,  NULL, 0, sc_oberthur_parse_containers,  0},

  { "Public objects list",  AWP_OBJECTS_LIST_PUB,   NULL, 0, sc_oberthur_parse_publicinfo,  0},

  { "Private objects list", AWP_OBJECTS_LIST_PRV, NULL, 0, sc_oberthur_parse_privateinfo, 1},

  { NULL, NULL, NULL, 0, NULL, 0}

};

static unsigned

sc_oberthur_decode_usage(unsigned flags)

{

  unsigned ret = 0;

  if (flags & OBERTHUR_ATTR_ENCRYPT)

    ret |= SC_PKCS15_PRKEY_USAGE_ENCRYPT;

  if (flags & OBERTHUR_ATTR_DECRYPT)

    ret |= SC_PKCS15_PRKEY_USAGE_DECRYPT;

  if (flags & OBERTHUR_ATTR_SIGN)

    ret |= SC_PKCS15_PRKEY_USAGE_SIGN;

  if (flags & OBERTHUR_ATTR_RSIGN)

    ret |= SC_PKCS15_PRKEY_USAGE_SIGNRECOVER;

  if (flags & OBERTHUR_ATTR_WRAP)

    ret |= SC_PKCS15_PRKEY_USAGE_WRAP;

  if (flags & OBERTHUR_ATTR_UNWRAP)

    ret |= SC_PKCS15_PRKEY_USAGE_UNWRAP;

  if (flags & OBERTHUR_ATTR_VERIFY)

    ret |= SC_PKCS15_PRKEY_USAGE_VERIFY;

  if (flags & OBERTHUR_ATTR_RVERIFY)

    ret |= SC_PKCS15_PRKEY_USAGE_VERIFYRECOVER;

  if (flags & OBERTHUR_ATTR_DERIVE)

    ret |= SC_PKCS15_PRKEY_USAGE_DERIVE;

  return ret;

}

static int

sc_oberthur_get_friends (unsigned int id, struct crypto_container *ccont)

{

  struct container *cont;

  for (cont = Containers; cont; cont = cont->next)   {

    if (cont->exchange.id_pub == id || cont->exchange.id_prv == id || cont->exchange.id_cert == id)   {

      if (ccont)

        memcpy(ccont, &cont->exchange, sizeof(struct crypto_container));

      break;

    }

    if (cont->sign.id_pub == id || cont->sign.id_prv == id || cont->sign.id_cert == id)   {

      if (ccont)

        memcpy(ccont, &cont->sign, sizeof(struct crypto_container));

      break;

    }

  }

  return cont ? 0 : SC_ERROR_TEMPLATE_NOT_FOUND;

}

static int

sc_oberthur_get_certificate_authority(sc_context_t *ctx, struct sc_pkcs15_der *der, int *out_authority)

{

#ifdef ENABLE_OPENSSL

  X509  *x;

  BUF_MEM buf_mem;

  BIO *bio = NULL;

  BASIC_CONSTRAINTS *bs = NULL;

  if (!der)

    return SC_ERROR_INVALID_ARGUMENTS;

  buf_mem.data = malloc(der->len);

  if (!buf_mem.data)

    return SC_ERROR_OUT_OF_MEMORY;

  memcpy(buf_mem.data, der->value, der->len);

  buf_mem.max = buf_mem.length = der->len;

  bio = BIO_new(BIO_s_mem());

  if (!bio) {

    free(buf_mem.data);

    sc_log_openssl(ctx);

    return SC_ERROR_OUT_OF_MEMORY;

  }

  BIO_set_mem_buf(bio, &buf_mem, BIO_NOCLOSE);

  x = d2i_X509_bio(bio, 0);

  free(buf_mem.data);

  BIO_free(bio);

  if (!x) {

    sc_log_openssl(ctx);

    return SC_ERROR_INVALID_DATA;

  }

  bs = (BASIC_CONSTRAINTS *)X509_get_ext_d2i(x, NID_basic_constraints, NULL, NULL);

  if (out_authority)

    *out_authority = (bs && bs->ca);

  X509_free(x);

  return SC_SUCCESS;

#else

  return SC_ERROR_NOT_SUPPORTED;

#endif

}

static int

sc_oberthur_read_file(struct sc_pkcs15_card *p15card, const char *in_path,

    unsigned char **out, size_t *out_len,

    int verify_pin)

{

  struct sc_context *ctx = p15card->card->ctx;

  struct sc_card *card = p15card->card;

  struct sc_file *file = NULL;

  struct sc_path path;

  size_t sz;

  int rv;

  LOG_FUNC_CALLED(ctx);

  if (!in_path || !out || !out_len)

    LOG_TEST_RET(ctx, SC_ERROR_INVALID_ARGUMENTS, "Cannot read oberthur file");

  sc_log(ctx, "read file '%s'; verify_pin:%i", in_path, verify_pin);

  *out = NULL;

  *out_len = 0;

  sc_format_path(in_path, &path);

  rv = sc_select_file(card, &path, &file);

  if (rv != SC_SUCCESS) {

    sc_file_free(file);

    LOG_TEST_RET(ctx, rv, "Cannot select oberthur file to read");

  }

  if (file->ef_structure == SC_FILE_EF_TRANSPARENT)

    sz = file->size;

  else

    sz = (file->record_length + 2) * file->record_count;

  *out = calloc(1, sz);

  if (*out == NULL) {

    sc_file_free(file);

    LOG_TEST_RET(ctx, SC_ERROR_OUT_OF_MEMORY, "Cannot read oberthur file");

  }

  if (file->ef_structure == SC_FILE_EF_TRANSPARENT)   {

    rv = sc_read_binary(card, 0, *out, sz, 0);

  }

  else  {

    unsigned int rec;

    size_t offs = 0;

    size_t rec_len = file->record_length;

    for (rec = 1; ; rec++)   {

      if (rec > file->record_count) {

        rv = 0;

        break;

      }

      rv = sc_read_record(card, rec, 0, *out + offs + 2, rec_len, SC_RECORD_BY_REC_NR);

      if (rv == SC_ERROR_RECORD_NOT_FOUND)   {

        rv = 0;

        break;

      }

      else if (rv < 0)   {

        break;

      }

      rec_len = rv;

      *(*out + offs) = 'R';

      *(*out + offs + 1) = rv;

      offs += rv + 2;

    }

    sz = offs;

  }

  sc_log(ctx, "read oberthur file result %i", rv);

  if (verify_pin && rv == SC_ERROR_SECURITY_STATUS_NOT_SATISFIED)   {

    struct sc_pkcs15_object *objs[0x10], *pin_obj = NULL;

    const struct sc_acl_entry *acl = sc_file_get_acl_entry(file, SC_AC_OP_READ);

    int ii, nobjs;

    if (acl == NULL) {

      sc_file_free(file);

      free(*out);

      *out = NULL;

      LOG_FUNC_RETURN(ctx, SC_ERROR_INVALID_DATA);

    }

    nobjs = sc_pkcs15_get_objects(p15card, SC_PKCS15_TYPE_AUTH_PIN, objs, 0x10);

    if (nobjs < 1) {

      sc_file_free(file);

      free(*out);

      *out = NULL;

      LOG_TEST_RET(ctx, SC_ERROR_DATA_OBJECT_NOT_FOUND,

        "Cannot read oberthur file: get AUTH objects error");

    }

    for (ii = 0; ii < nobjs; ii++) {

      struct sc_pkcs15_auth_info *auth_info = (struct sc_pkcs15_auth_info *) objs[ii]->data;

      sc_log(ctx, "compare PIN/ACL refs:%i/%i, method:%i/%i",

        auth_info->attrs.pin.reference, acl->key_ref, auth_info->auth_method, acl->method);

      if (auth_info->attrs.pin.reference == (int)acl->key_ref && auth_info->auth_method == (unsigned)acl->method)   {

        pin_obj = objs[ii];

        break;

      }

    }

    if (!pin_obj || !pin_obj->content.value)    {

      rv = SC_ERROR_SECURITY_STATUS_NOT_SATISFIED;

    }

    else    {

      rv = sc_pkcs15_verify_pin(p15card, pin_obj, pin_obj->content.value, pin_obj->content.len);

      if (!rv)

        rv = sc_oberthur_read_file(p15card, in_path, out, out_len, 0);

    }

  }

  sc_file_free(file);

  if (rv < 0)   {

    free(*out);

    *out = NULL;

    *out_len = 0;

  }

  *out_len = sz;

  LOG_FUNC_RETURN(ctx, rv);

}

static int

sc_oberthur_parse_tokeninfo (struct sc_pkcs15_card *p15card,

    unsigned char *buff, size_t len, int postpone_allowed)

{

  struct sc_context *ctx = p15card->card->ctx;

  char label[0x21];

  unsigned flags;

  int ii;

  LOG_FUNC_CALLED(ctx);

  if (!buff || len < 0x24)

    LOG_TEST_RET(ctx, SC_ERROR_INVALID_ARGUMENTS, "Cannot parse token info");

  memset(label, 0, sizeof(label));

  memcpy(label, buff, 0x20);

  ii = 0x20;

  while (*(label + --ii)==' ' && ii)

    ;

  *(label + ii + 1) = '\0';

  flags = *(buff + 0x22) * 0x100 + *(buff + 0x23);

  set_string(&p15card->tokeninfo->label, label);

  set_string(&p15card->tokeninfo->manufacturer_id, "Oberthur/OpenSC");

  if (flags & 0x01)

    p15card->tokeninfo->flags |= SC_PKCS15_TOKEN_PRN_GENERATION;

  sc_log(ctx, "label %s", p15card->tokeninfo->label);

  sc_log(ctx, "manufacturer_id %s", p15card->tokeninfo->manufacturer_id);

  LOG_FUNC_RETURN(ctx, SC_SUCCESS);

}

static int

sc_oberthur_parse_containers (struct sc_pkcs15_card *p15card,

    unsigned char *buff, size_t len, int postpone_allowed)

{

  struct sc_context *ctx = p15card->card->ctx;

  size_t offs;

  LOG_FUNC_CALLED(ctx);

  while (Containers)   {

    struct container *next = Containers->next;

    free (Containers);

    Containers = next;

  }

  for (offs=0; offs + 2 + 2+2+2 + 2+2+2 + 2+36 <= len;)  {

    struct container *cont;

    unsigned char *ptr =  buff + offs + 2;

    sc_log(ctx,

           "parse contaniers offs:%"SC_FORMAT_LEN_SIZE_T"u, len:%"SC_FORMAT_LEN_SIZE_T"u",

           offs, len);

    if (*(buff + offs) != 'R')

      return SC_ERROR_INVALID_DATA;

    cont = (struct container *)calloc(1, sizeof(struct container));

    if (!cont)

      return SC_ERROR_OUT_OF_MEMORY;

    cont->exchange.id_pub = *ptr * 0x100 + *(ptr + 1);  ptr += 2;

    cont->exchange.id_prv = *ptr * 0x100 + *(ptr + 1);  ptr += 2;

    cont->exchange.id_cert = *ptr * 0x100 + *(ptr + 1); ptr += 2;

    cont->sign.id_pub = *ptr * 0x100 + *(ptr + 1);  ptr += 2;

    cont->sign.id_prv = *ptr * 0x100 + *(ptr + 1);  ptr += 2;

    cont->sign.id_cert = *ptr * 0x100 + *(ptr + 1); ptr += 2;

    memcpy(cont->uuid, ptr + 2, 36);

    sc_log(ctx, "UUID: %s; 0x%X, 0x%X, 0x%X", cont->uuid,

        cont->exchange.id_pub, cont->exchange.id_prv, cont->exchange.id_cert);

    if (!Containers)  {

      Containers = cont;

    }

    else   {

      cont->next = Containers;

      Containers->prev = (void *)cont;

      Containers = cont;

    }

    offs += *(buff + offs + 1) + 2;

  }

  LOG_FUNC_RETURN(ctx, SC_SUCCESS);

}

static int

sc_oberthur_parse_publicinfo (struct sc_pkcs15_card *p15card,

    unsigned char *buff, size_t len, int postpone_allowed)

{

  struct sc_context *ctx = p15card->card->ctx;

  size_t ii;

  int rv;

  LOG_FUNC_CALLED(ctx);

  for (ii=0; ii+5<=len; ii+=5)   {

    unsigned int file_id, size;

    if(*(buff+ii) != 0xFF)

      continue;

    file_id = 0x100 * *(buff+ii + 1) + *(buff+ii + 2);

    size = 0x100 * *(buff+ii + 3) + *(buff+ii + 4);

    sc_log(ctx, "add public object(file-id:%04X,size:%X)", file_id, size);

    switch (*(buff+ii + 1))   {

    case BASE_ID_PUB_RSA :

      rv = sc_pkcs15emu_oberthur_add_pubkey(p15card, file_id, size);

      LOG_TEST_RET(ctx, rv, "Cannot parse public key info");

      break;

    case BASE_ID_CERT :

      rv = sc_pkcs15emu_oberthur_add_cert(p15card, file_id);

      LOG_TEST_RET(ctx, rv, "Cannot parse certificate info");

      break;

    case BASE_ID_PUB_DES :

      break;

    case BASE_ID_PUB_DATA :

      rv = sc_pkcs15emu_oberthur_add_data(p15card, file_id, size, 0);

      LOG_TEST_RET(ctx, rv, "Cannot parse data info");

      break;

    default:

      LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Public object parse error");

    }

  }

  LOG_FUNC_RETURN(ctx, SC_SUCCESS);

}

static int

sc_oberthur_parse_privateinfo (struct sc_pkcs15_card *p15card,

    unsigned char *buff, size_t len, int postpone_allowed)

{

  struct sc_context *ctx = p15card->card->ctx;

  size_t ii;

  int rv;

  int no_more_private_keys = 0, no_more_private_data = 0;

  LOG_FUNC_CALLED(ctx);

  for (ii=0; ii+5<=len; ii+=5)   {

    unsigned int file_id, size;

    if(*(buff+ii) != 0xFF)

      continue;

    file_id = 0x100 * *(buff+ii + 1) + *(buff+ii + 2);

    size = 0x100 * *(buff+ii + 3) + *(buff+ii + 4);

    sc_log(ctx, "add private object (file-id:%04X, size:%X)", file_id, size);

    switch (*(buff+ii + 1))   {

    case BASE_ID_PRV_RSA :

      if (no_more_private_keys)

        break;

      rv = sc_pkcs15emu_oberthur_add_prvkey(p15card, file_id, size);

      if (rv == SC_ERROR_SECURITY_STATUS_NOT_SATISFIED && postpone_allowed)   {

        struct sc_path path;

        sc_log(ctx, "postpone adding of the private keys");

        sc_format_path("5011A5A5", &path);

        rv = sc_pkcs15_add_df(p15card, SC_PKCS15_PRKDF, &path);

        LOG_TEST_RET(ctx, rv, "Add PrkDF error");

        no_more_private_keys = 1;

      }

      LOG_TEST_RET(ctx, rv, "Cannot parse private key info");

      break;

    case BASE_ID_PRV_DES :

      break;

    case BASE_ID_PRV_DATA :

      sc_log(ctx, "*(buff+ii + 1):%X", *(buff+ii + 1));

      if (no_more_private_data)

        break;

      rv = sc_pkcs15emu_oberthur_add_data(p15card, file_id, size, 1);

      if (rv == SC_ERROR_SECURITY_STATUS_NOT_SATISFIED && postpone_allowed)   {

        struct sc_path path;

        sc_log(ctx, "postpone adding of the private data");

        sc_format_path("5011A6A6", &path);

        rv = sc_pkcs15_add_df(p15card, SC_PKCS15_DODF, &path);

        LOG_TEST_RET(ctx, rv, "Add DODF error");

        no_more_private_data = 1;

      }

      LOG_TEST_RET(ctx, rv, "Cannot parse private data info");

      break;

    default:

      LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Private object parse error");

    }

  }

  LOG_FUNC_RETURN(ctx, SC_SUCCESS);

}

/* Public key info:

 *  flags:2,

 *  CN(len:2,value:<variable length>),

 *  ID(len:2,value:(SHA1 value)),

 *  StartDate(Ascii:8)

 *  EndDate(Ascii:8)

 *  ??(0x00:2)

 */

static int

sc_pkcs15emu_oberthur_add_pubkey(struct sc_pkcs15_card *p15card,

    unsigned int file_id, unsigned int size)

{

  struct sc_context *ctx = p15card->card->ctx;

  struct sc_pkcs15_pubkey_info key_info;

  struct sc_pkcs15_object key_obj;

  char ch_tmp[0x100];

  unsigned char *info_blob = NULL;

  size_t len, info_len, offs;

  unsigned flags;

  int rv;

  LOG_FUNC_CALLED(ctx);

  sc_log(ctx, "public key(file-id:%04X,size:%X)", file_id, size);

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

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

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", AWP_OBJECTS_DF_PUB, file_id | 0x100);

  rv = sc_oberthur_read_file(p15card, ch_tmp, &info_blob, &info_len, 1);

  LOG_TEST_RET(ctx, rv, "Failed to add public key: read oberthur file error");

  /* Flags */

  offs = 2;

  if (offs > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add public key: no 'tag'");

  }

  flags = *(info_blob + 0) * 0x100 + *(info_blob + 1);

  key_info.usage = sc_oberthur_decode_usage(flags);

  if (flags & OBERTHUR_ATTR_MODIFIABLE)

    key_obj.flags = SC_PKCS15_CO_FLAG_MODIFIABLE;

  sc_log(ctx, "Public key key-usage:%04X", key_info.usage);

  /* Label */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add public key: no 'Label'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (offs + 2 + len > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_INVALID_DATA, "Failed to add public key: invalid 'Label' length");

  } else if (len) {

    if (len > sizeof(key_obj.label) - 1)

      len = sizeof(key_obj.label) - 1;

    memcpy(key_obj.label, info_blob + offs + 2, len);

  }

  offs += 2 + len;

  /* ID */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add public key: no 'ID'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (len == 0

      || len > sizeof(key_info.id.value)

      || offs + 2 + len > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_INVALID_DATA, "Failed to add public key: invalid 'ID' length");

  }

  memcpy(key_info.id.value, info_blob + offs + 2, len);

  key_info.id.len = len;

  free(info_blob);

  /* Ignore Start/End dates */

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", AWP_OBJECTS_DF_PUB, file_id);

  sc_format_path(ch_tmp, &key_info.path);

  key_info.native = 1;

  key_info.key_reference = file_id & 0xFF;

  key_info.modulus_length = size;

  rv = sc_pkcs15emu_add_rsa_pubkey(p15card, &key_obj, &key_info);

  LOG_FUNC_RETURN(ctx, rv);

}

/* Certificate info:

 *  flags:2,

 *  Label(len:2,value:),

 *  ID(len:2,value:(SHA1 value)),

 *  Subject in ASN.1(len:2,value:)

 *  Issuer in ASN.1(len:2,value:)

 *  Serial encoded in LV or ASN.1 FIXME

 */

static int

sc_pkcs15emu_oberthur_add_cert(struct sc_pkcs15_card *p15card, unsigned int file_id)

{

  struct sc_context *ctx = p15card->card->ctx;

  struct sc_pkcs15_cert_info cinfo;

  struct sc_pkcs15_object cobj;

  unsigned char *info_blob = NULL, *cert_blob = NULL;

  size_t info_len, cert_len, len, offs;

  unsigned flags;

  int rv;

  char ch_tmp[0x20];

  LOG_FUNC_CALLED(ctx);

  sc_log(ctx, "add certificate(file-id:%04X)", file_id);

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

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

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", AWP_OBJECTS_DF_PUB, file_id | 0x100);

  rv = sc_oberthur_read_file(p15card, ch_tmp, &info_blob, &info_len, 1);

  LOG_TEST_RET(ctx, rv, "Failed to add certificate: read oberthur file error");

  if (info_len < 2) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add certificate: no 'tag'");

  }

  flags = *(info_blob + 0) * 0x100 + *(info_blob + 1);

  offs = 2;

  /* Label */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add certificate: no 'CN'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (len + offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid 'CN' length");

  } else if (len) {

    if (len > sizeof(cobj.label) - 1)

      len = sizeof(cobj.label) - 1;

    memcpy(cobj.label, info_blob + offs + 2, len);

  }

  offs += 2 + len;

  /* ID */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add certificate: no 'ID'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (len + offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid 'ID' length");

  } else if (len > sizeof(cinfo.id.value)) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_INVALID_DATA, "Failed to add certificate: invalid 'ID' length");

  }

  memcpy(cinfo.id.value, info_blob + offs + 2, len);

  cinfo.id.len = len;

  free(info_blob);

  /* Ignore subject, issuer and serial */

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", AWP_OBJECTS_DF_PUB, file_id);

  sc_format_path(ch_tmp, &cinfo.path);

  rv = sc_oberthur_read_file(p15card, ch_tmp, &cert_blob, &cert_len, 1);

  LOG_TEST_RET(ctx, rv, "Failed to add certificate: read certificate error");

  cinfo.value.value = cert_blob;

  cinfo.value.len = cert_len;

  rv = sc_oberthur_get_certificate_authority(ctx, &cinfo.value, &cinfo.authority);

  if (rv != SC_SUCCESS) {

    free(cinfo.value.value);

    LOG_TEST_RET(ctx, rv, "Failed to add certificate: get certificate attributes error");

  }

  if (flags & OBERTHUR_ATTR_MODIFIABLE)

    cobj.flags |= SC_PKCS15_CO_FLAG_MODIFIABLE;

  rv = sc_pkcs15emu_add_x509_cert(p15card, &cobj, &cinfo);

  LOG_FUNC_RETURN(p15card->card->ctx, rv);

}

/* Private key info:

 *  flags:2,

 *  CN(len:2,value:),

 *  ID(len:2,value:(SHA1 value)),

 *  StartDate(Ascii:8)

 *  EndDate(Ascii:8)

 *  Subject in ASN.1(len:2,value:)

 *  modulus(value:)

 *  exponent(length:1, value:3)

 */

static int

sc_pkcs15emu_oberthur_add_prvkey(struct sc_pkcs15_card *p15card,

    unsigned int file_id, unsigned int size)

{

  struct sc_context *ctx = p15card->card->ctx;

  struct sc_pkcs15_prkey_info kinfo;

  struct sc_pkcs15_object kobj;

  struct crypto_container ccont;

  unsigned char *info_blob = NULL;

  size_t info_len = 0;

  unsigned flags;

  size_t offs, len;

  char ch_tmp[0x100];

  int rv;

  LOG_FUNC_CALLED(ctx);

  sc_log(ctx, "add private key(file-id:%04X,size:%04X)", file_id, size);

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

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

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

  rv = sc_oberthur_get_friends (file_id, &ccont);

  LOG_TEST_RET(ctx, rv, "Failed to add private key: get friends error");

  if (ccont.id_cert)   {

    struct sc_pkcs15_object *objs[32];

    int ii;

    sc_log(ctx, "friend certificate %04X", ccont.id_cert);

    rv = sc_pkcs15_get_objects(p15card, SC_PKCS15_TYPE_CERT_X509, objs, 32);

    LOG_TEST_RET(ctx, rv, "Failed to add private key: get certificates error");

    for (ii=0; ii<rv; ii++) {

      struct sc_pkcs15_cert_info *cert = (struct sc_pkcs15_cert_info *)objs[ii]->data;

      struct sc_path path = cert->path;

      unsigned int id = path.value[path.len - 2] * 0x100 + path.value[path.len - 1];

      if (id == ccont.id_cert)   {

        strlcpy(kobj.label, objs[ii]->label, sizeof(kobj.label));

        break;

      }

    }

    if (ii == rv)

      LOG_TEST_RET(ctx, SC_ERROR_INCONSISTENT_PROFILE, "Failed to add private key: friend not found");

  }

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", AWP_OBJECTS_DF_PRV, file_id | 0x100);

  rv = sc_oberthur_read_file(p15card, ch_tmp, &info_blob, &info_len, 1);

  LOG_TEST_RET(ctx, rv, "Failed to add private key: read oberthur file error");

  if (info_len < 2) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add private key: no 'tag'");

  }

  flags = *(info_blob + 0) * 0x100 + *(info_blob + 1);

  offs = 2;

  /* CN */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add private key: no 'CN'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (len + offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid 'CN' length");

  }

  if (len && !strlen(kobj.label))   {

    if (len > sizeof(kobj.label) - 1)

      len = sizeof(kobj.label) - 1;

    strncpy(kobj.label, (char *)(info_blob + offs + 2), len);

  }

  offs += 2 + len;

  /* ID */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add private key: no 'ID'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (!len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add private key: zero length ID");

  } else if (len + offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid 'ID' length");

  } else if (len > sizeof(kinfo.id.value)) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_INVALID_DATA, "Failed to add private key: invalid ID length");

  }

  memcpy(kinfo.id.value, info_blob + offs + 2, len);

  kinfo.id.len = len;

  offs += 2 + len;

  /* Ignore Start/End dates */

  offs += 16;

  /* Subject encoded in ASN1 */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add private key: no 'subject'");

  }

  len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (len + offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid 'subject' length");

  } else if (len) {

    kinfo.subject.value = malloc(len);

    if (!kinfo.subject.value) {

      free(info_blob);

      LOG_TEST_RET(ctx, SC_ERROR_OUT_OF_MEMORY, "Failed to add private key: memory allocation error");

    }

    kinfo.subject.len = len;

    memcpy(kinfo.subject.value, info_blob + offs + 2, len);

  }

  /* Modulus and exponent are ignored */

  free(info_blob);

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", AWP_OBJECTS_DF_PRV, file_id);

  sc_format_path(ch_tmp, &kinfo.path);

  sc_log(ctx, "Private key info path %s", ch_tmp);

  kinfo.modulus_length  = size;

  kinfo.native    = 1;

  kinfo.key_reference  = file_id & 0xFF;

  kinfo.usage = sc_oberthur_decode_usage(flags);

  kobj.flags = SC_PKCS15_CO_FLAG_PRIVATE;

  if (flags & OBERTHUR_ATTR_MODIFIABLE)

    kobj.flags |= SC_PKCS15_CO_FLAG_MODIFIABLE;

  kobj.auth_id.len = sizeof(PinDomainID) > sizeof(kobj.auth_id.value)

      ? sizeof(kobj.auth_id.value) : sizeof(PinDomainID);

  memcpy(kobj.auth_id.value, PinDomainID, kobj.auth_id.len);

  sc_log(ctx, "Parsed private key(reference:%i,usage:%X,flags:%X)", kinfo.key_reference, kinfo.usage, kobj.flags);

  rv = sc_pkcs15emu_add_rsa_prkey(p15card, &kobj, &kinfo);

  LOG_FUNC_RETURN(ctx, rv);

}

static int

sc_pkcs15emu_oberthur_add_data(struct sc_pkcs15_card *p15card,

    unsigned int file_id, unsigned int size, int private)

{

  struct sc_context *ctx = p15card->card->ctx;

  struct sc_pkcs15_data_info dinfo;

  struct sc_pkcs15_object dobj;

  unsigned flags;

  unsigned char *info_blob = NULL, *label = NULL, *app = NULL, *oid = NULL;

  size_t info_len, label_len, app_len, oid_len, offs;

  char ch_tmp[0x100];

  int rv;

  SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_VERBOSE);

  sc_log(ctx, "Add data(file-id:%04X,size:%i,is-private:%i)", file_id, size, private);

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

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

  snprintf(ch_tmp, sizeof(ch_tmp), "%s%04X", private ? AWP_OBJECTS_DF_PRV : AWP_OBJECTS_DF_PUB, file_id | 0x100);

  rv = sc_oberthur_read_file(p15card, ch_tmp, &info_blob, &info_len, 1);

  LOG_TEST_RET(ctx, rv, "Failed to add data: read oberthur file error");

  if (info_len < 2) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add certificate: no 'tag'");

  }

  flags = *(info_blob + 0) * 0x100 + *(info_blob + 1);

  offs = 2;

  /* Label */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add data: no 'label'");

  }

  label = info_blob + offs + 2;

  label_len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (offs + 2 + label_len > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid length of 'label' received");

  }

  if (label_len > sizeof(dobj.label) - 1)

    label_len = sizeof(dobj.label) - 1;

  offs += 2 + *(info_blob + offs + 1);

  /* Application */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add data: no 'application'");

  }

  app = info_blob + offs + 2;

  app_len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (offs + 2 + app_len > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid length of 'application' received");

  }

  if (app_len > sizeof(dinfo.app_label) - 1)

    app_len = sizeof(dinfo.app_label) - 1;

  offs += 2 + app_len;

  /* OID encode like DER(ASN.1(oid)) */

  if (offs + 2 > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add data: no 'OID'");

  }

  oid_len = *(info_blob + offs + 1) + *(info_blob + offs) * 0x100;

  if (offs + 2 + oid_len > info_len) {

    free(info_blob);

    LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Invalid length of 'oid' received");

  }

  if (oid_len > 2) {

    oid = info_blob + offs + 2;

    if (*oid != 0x06 || (*(oid + 1) != oid_len - 2)) {

      free(info_blob);

      LOG_TEST_RET(ctx, SC_ERROR_UNKNOWN_DATA_RECEIVED, "Failed to add data: invalid 'OID' format");

    }

    oid += 2;

    oid_len -= 2;