cms_io.c 4.9 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133
  1. /* crypto/cms/cms_io.c */
  2. /*
  3. * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  4. * project.
  5. */
  6. /* ====================================================================
  7. * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
  8. *
  9. * Redistribution and use in source and binary forms, with or without
  10. * modification, are permitted provided that the following conditions
  11. * are met:
  12. *
  13. * 1. Redistributions of source code must retain the above copyright
  14. * notice, this list of conditions and the following disclaimer.
  15. *
  16. * 2. Redistributions in binary form must reproduce the above copyright
  17. * notice, this list of conditions and the following disclaimer in
  18. * the documentation and/or other materials provided with the
  19. * distribution.
  20. *
  21. * 3. All advertising materials mentioning features or use of this
  22. * software must display the following acknowledgment:
  23. * "This product includes software developed by the OpenSSL Project
  24. * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25. *
  26. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27. * endorse or promote products derived from this software without
  28. * prior written permission. For written permission, please contact
  29. * licensing@OpenSSL.org.
  30. *
  31. * 5. Products derived from this software may not be called "OpenSSL"
  32. * nor may "OpenSSL" appear in their names without prior written
  33. * permission of the OpenSSL Project.
  34. *
  35. * 6. Redistributions of any form whatsoever must retain the following
  36. * acknowledgment:
  37. * "This product includes software developed by the OpenSSL Project
  38. * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39. *
  40. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51. * OF THE POSSIBILITY OF SUCH DAMAGE.
  52. * ====================================================================
  53. */
  54. #include <openssl/asn1t.h>
  55. #include <openssl/x509.h>
  56. #include <openssl/err.h>
  57. #include <openssl/pem.h>
  58. #include <openssl/cms.h>
  59. #include "cms_lcl.h"
  60. int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
  61. {
  62. ASN1_OCTET_STRING **pos;
  63. pos = CMS_get0_content(cms);
  64. if (pos == NULL)
  65. return 0;
  66. if (*pos == NULL)
  67. *pos = ASN1_OCTET_STRING_new();
  68. if (*pos != NULL) {
  69. (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
  70. (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
  71. *boundary = &(*pos)->data;
  72. return 1;
  73. }
  74. CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
  75. return 0;
  76. }
  77. CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
  78. {
  79. return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
  80. }
  81. int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
  82. {
  83. return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
  84. }
  85. IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
  86. BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
  87. {
  88. return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
  89. ASN1_ITEM_rptr(CMS_ContentInfo));
  90. }
  91. /* CMS wrappers round generalised stream and MIME routines */
  92. int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
  93. {
  94. return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
  95. ASN1_ITEM_rptr(CMS_ContentInfo));
  96. }
  97. int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
  98. int flags)
  99. {
  100. return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
  101. "CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
  102. }
  103. int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
  104. {
  105. STACK_OF(X509_ALGOR) *mdalgs;
  106. int ctype_nid = OBJ_obj2nid(cms->contentType);
  107. int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
  108. if (ctype_nid == NID_pkcs7_signed)
  109. mdalgs = cms->d.signedData->digestAlgorithms;
  110. else
  111. mdalgs = NULL;
  112. return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
  113. ctype_nid, econt_nid, mdalgs,
  114. ASN1_ITEM_rptr(CMS_ContentInfo));
  115. }
  116. CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
  117. {
  118. return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
  119. ASN1_ITEM_rptr
  120. (CMS_ContentInfo));
  121. }