text: /*
   * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   * 1999.
   */
  /* ====================================================================
   * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. All advertising materials mentioning features or use of this
   *    software must display the following acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
   *
   * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
   *    endorse or promote products derived from this software without
   *    prior written permission. For written permission, please contact
   *    licensing@OpenSSL.org.
   *
   * 5. Products derived from this software may not be called "OpenSSL"
   *    nor may "OpenSSL" appear in their names without prior written
   *    permission of the OpenSSL Project.
   *
   * 6. Redistributions of any form whatsoever must retain the following
   *    acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
   *
   * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
   * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
   * OF THE POSSIBILITY OF SUCH DAMAGE.
   * ====================================================================
   *
   * This product includes cryptographic software written by Eric Young
   * (eay@cryptsoft.com).  This product includes software written by Tim
   * Hudson (tjh@cryptsoft.com).
   *
   */
  
  #include <stdio.h>
  #include "internal/cryptlib.h"
  #include <openssl/pkcs12.h>
  #include "p12_lcl.h"
  
  /* Pack an object into an OCTET STRING and turn into a safebag */
  
  PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it,
                                           int nid1, int nid2)
  {
      PKCS12_BAGS *bag;
      PKCS12_SAFEBAG *safebag;
  
      if ((bag = PKCS12_BAGS_new()) == NULL) {
          PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
          return NULL;
      }
      bag->type = OBJ_nid2obj(nid1);
      if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
          PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
          goto err;
      }
      if ((safebag = PKCS12_SAFEBAG_new()) == NULL) {
          PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
          goto err;
      }
      safebag->value.bag = bag;
      safebag->type = OBJ_nid2obj(nid2);
      return safebag;
  
   err:
      PKCS12_BAGS_free(bag);
      return NULL;
  }
  
  /* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
  PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
  {
      PKCS7 *p7;
  
      if ((p7 = PKCS7_new()) == NULL) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
          return NULL;
      }
      p7->type = OBJ_nid2obj(NID_pkcs7_data);
      if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
          goto err;
      }
  
      if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, PKCS12_R_CANT_PACK_STRUCTURE);
          goto err;
      }
      return p7;
  
   err:
      PKCS7_free(p7);
      return NULL;
  }
  
  /* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
  STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)
  {
      if (!PKCS7_type_is_data(p7)) {
          PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA,
                    PKCS12_R_CONTENT_TYPE_NOT_DATA);
          return NULL;
      }
      return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
  }
  
  /* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
  
  PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
                               unsigned char *salt, int saltlen, int iter,
                               STACK_OF(PKCS12_SAFEBAG) *bags)
  {
      PKCS7 *p7;
      X509_ALGOR *pbe;
      const EVP_CIPHER *pbe_ciph;
  
      if ((p7 = PKCS7_new()) == NULL) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
          return NULL;
      }
      if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
                    PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
          goto err;
      }
  
      pbe_ciph = EVP_get_cipherbynid(pbe_nid);
  
      if (pbe_ciph)
          pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
      else
          pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
  
      if (!pbe) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
          goto err;
      }
      X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
      p7->d.encrypted->enc_data->algorithm = pbe;
      ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
      if (!(p7->d.encrypted->enc_data->enc_data =
            PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass,
                                    passlen, bags, 1))) {
          PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR);
          goto err;
      }
  
      return p7;
  
   err:
      PKCS7_free(p7);
      return NULL;
  }
  
  STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass,
                                                    int passlen)
  {
      if (!PKCS7_type_is_encrypted(p7))
          return NULL;
      return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
                                     ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
                                     pass, passlen,
                                     p7->d.encrypted->enc_data->enc_data, 1);
  }
  
  PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(PKCS12_SAFEBAG *bag,
                                           const char *pass, int passlen)
  {
      return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
  }
  
  int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
  {
      if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
                         &p12->authsafes->d.data))
          return 1;
      return 0;
  }
  
  STACK_OF(PKCS7) *PKCS12_unpack_authsafes(PKCS12 *p12)
  {
      if (!PKCS7_type_is_data(p12->authsafes)) {
          PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES,
                    PKCS12_R_CONTENT_TYPE_NOT_DATA);
          return NULL;
      }
      return ASN1_item_unpack(p12->authsafes->d.data,
                              ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
  }
  