x_req.c 3.0 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104
  1. /*
  2. * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
  3. *
  4. * Licensed under the Apache License 2.0 (the "License"). You may not use
  5. * this file except in compliance with the License. You can obtain a copy
  6. * in the file LICENSE in the source distribution or at
  7. * https://www.openssl.org/source/license.html
  8. */
  9. #include <stdio.h>
  10. #include "internal/cryptlib.h"
  11. #include <openssl/asn1t.h>
  12. #include <openssl/x509.h>
  13. #include "crypto/x509.h"
  14. /*-
  15. * X509_REQ_INFO is handled in an unusual way to get round
  16. * invalid encodings. Some broken certificate requests don't
  17. * encode the attributes field if it is empty. This is in
  18. * violation of PKCS#10 but we need to tolerate it. We do
  19. * this by making the attributes field OPTIONAL then using
  20. * the callback to initialise it to an empty STACK.
  21. *
  22. * This means that the field will be correctly encoded unless
  23. * we NULL out the field.
  24. *
  25. * As a result we no longer need the req_kludge field because
  26. * the information is now contained in the attributes field:
  27. * 1. If it is NULL then it's the invalid omission.
  28. * 2. If it is empty it is the correct encoding.
  29. * 3. If it is not empty then some attributes are present.
  30. *
  31. */
  32. static int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
  33. void *exarg)
  34. {
  35. X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
  36. if (operation == ASN1_OP_NEW_POST) {
  37. rinf->attributes = sk_X509_ATTRIBUTE_new_null();
  38. if (!rinf->attributes)
  39. return 0;
  40. }
  41. return 1;
  42. }
  43. static int req_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
  44. void *exarg)
  45. {
  46. #ifndef OPENSSL_NO_SM2
  47. X509_REQ *ret = (X509_REQ *)*pval;
  48. switch (operation) {
  49. case ASN1_OP_D2I_PRE:
  50. ASN1_OCTET_STRING_free(ret->sm2_id);
  51. /* fall thru */
  52. case ASN1_OP_NEW_POST:
  53. ret->sm2_id = NULL;
  54. break;
  55. case ASN1_OP_FREE_POST:
  56. ASN1_OCTET_STRING_free(ret->sm2_id);
  57. break;
  58. }
  59. #endif
  60. return 1;
  61. }
  62. ASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = {
  63. ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER),
  64. ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME),
  65. ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY),
  66. /* This isn't really OPTIONAL but it gets round invalid
  67. * encodings
  68. */
  69. ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0)
  70. } ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO)
  71. IMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO)
  72. ASN1_SEQUENCE_ref(X509_REQ, req_cb) = {
  73. ASN1_EMBED(X509_REQ, req_info, X509_REQ_INFO),
  74. ASN1_EMBED(X509_REQ, sig_alg, X509_ALGOR),
  75. ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING)
  76. } ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ)
  77. IMPLEMENT_ASN1_FUNCTIONS(X509_REQ)
  78. IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ)
  79. #ifndef OPENSSL_NO_SM2
  80. void X509_REQ_set0_sm2_id(X509_REQ *x, ASN1_OCTET_STRING *sm2_id)
  81. {
  82. ASN1_OCTET_STRING_free(x->sm2_id);
  83. x->sm2_id = sm2_id;
  84. }
  85. ASN1_OCTET_STRING *X509_REQ_get0_sm2_id(X509_REQ *x)
  86. {
  87. return x->sm2_id;
  88. }
  89. #endif