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x_algor.c 4.5 KB

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  1. /* x_algor.c */
  2. /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  3. * project 2000.
  4. */
  5. /* ====================================================================
  6. * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
  7. *
  8. * Redistribution and use in source and binary forms, with or without
  9. * modification, are permitted provided that the following conditions
  10. * are met:
  11. *
  12. * 1. Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. *
  15. * 2. Redistributions in binary form must reproduce the above copyright
  16. * notice, this list of conditions and the following disclaimer in
  17. * the documentation and/or other materials provided with the
  18. * distribution.
  19. *
  20. * 3. All advertising materials mentioning features or use of this
  21. * software must display the following acknowledgment:
  22. * "This product includes software developed by the OpenSSL Project
  23. * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24. *
  25. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26. * endorse or promote products derived from this software without
  27. * prior written permission. For written permission, please contact
  28. * licensing@OpenSSL.org.
  29. *
  30. * 5. Products derived from this software may not be called "OpenSSL"
  31. * nor may "OpenSSL" appear in their names without prior written
  32. * permission of the OpenSSL Project.
  33. *
  34. * 6. Redistributions of any form whatsoever must retain the following
  35. * acknowledgment:
  36. * "This product includes software developed by the OpenSSL Project
  37. * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38. *
  39. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50. * OF THE POSSIBILITY OF SUCH DAMAGE.
  51. * ====================================================================
  52. *
  53. * This product includes cryptographic software written by Eric Young
  54. * (eay@cryptsoft.com). This product includes software written by Tim
  55. * Hudson (tjh@cryptsoft.com).
  56. *
  57. */
  58. #include <stddef.h>
  59. #include <openssl/x509.h>
  60. #include <openssl/asn1.h>
  61. #include <openssl/asn1t.h>
  62. ASN1_SEQUENCE(X509_ALGOR) = {
  63. ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT),
  64. ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY)
  65. } ASN1_SEQUENCE_END(X509_ALGOR)
  66. ASN1_ITEM_TEMPLATE(X509_ALGORS) =
  67. ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR)
  68. ASN1_ITEM_TEMPLATE_END(X509_ALGORS)
  69. IMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR)
  70. IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS)
  71. IMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR)
  72. IMPLEMENT_STACK_OF(X509_ALGOR)
  73. IMPLEMENT_ASN1_SET_OF(X509_ALGOR)
  74. int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
  75. {
  76. if (!alg)
  77. return 0;
  78. if (ptype != V_ASN1_UNDEF)
  79. {
  80. if (alg->parameter == NULL)
  81. alg->parameter = ASN1_TYPE_new();
  82. if (alg->parameter == NULL)
  83. return 0;
  84. }
  85. if (alg)
  86. {
  87. if (alg->algorithm)
  88. ASN1_OBJECT_free(alg->algorithm);
  89. alg->algorithm = aobj;
  90. }
  91. if (ptype == 0)
  92. return 1;
  93. if (ptype == V_ASN1_UNDEF)
  94. {
  95. if (alg->parameter)
  96. {
  97. ASN1_TYPE_free(alg->parameter);
  98. alg->parameter = NULL;
  99. }
  100. }
  101. else
  102. ASN1_TYPE_set(alg->parameter, ptype, pval);
  103. return 1;
  104. }
  105. void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
  106. X509_ALGOR *algor)
  107. {
  108. if (paobj)
  109. *paobj = algor->algorithm;
  110. if (pptype)
  111. {
  112. if (algor->parameter == NULL)
  113. {
  114. *pptype = V_ASN1_UNDEF;
  115. return;
  116. }
  117. else
  118. *pptype = algor->parameter->type;
  119. if (ppval)
  120. *ppval = algor->parameter->value.ptr;
  121. }
  122. }
  123. /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
  124. void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md)
  125. {
  126. int param_type;
  127. if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
  128. param_type = V_ASN1_UNDEF;
  129. else
  130. param_type = V_ASN1_NULL;
  131. X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
  132. }