crypto/ct/ct_x509v3.c

   1 /*
   2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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
  10 #ifdef OPENSSL_NO_CT
  11 # error "CT is disabled"
  12 #endif
  13
  14 #include "ct_locl.h"
  15
  16 static char *i2s_poison(const X509V3_EXT_METHOD *method, void *val)
  17 {
  18     return OPENSSL_strdup("NULL");
  19 }
  20
  21 static void *s2i_poison(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, const char *str)
  22 {
  23    return ASN1_NULL_new();
  24 }
  25
  26 static int i2r_SCT_LIST(X509V3_EXT_METHOD *method, STACK_OF(SCT) *sct_list,
  27                  BIO *out, int indent)
  28 {
  29     SCT_LIST_print(sct_list, out, indent, "\n", NULL);
  30     return 1;
  31 }
  32
  33 /* Handlers for X509v3/OCSP Certificate Transparency extensions */
  34 const X509V3_EXT_METHOD v3_ct_scts[] = {
  35     /* X509v3 extension in certificates that contains SCTs */
  36     { NID_ct_precert_scts, 0, NULL,
  37     NULL, (X509V3_EXT_FREE)SCT_LIST_free,
  38     (X509V3_EXT_D2I)d2i_SCT_LIST, (X509V3_EXT_I2D)i2d_SCT_LIST,
  39     NULL, NULL,
  40     NULL, NULL,
  41     (X509V3_EXT_I2R)i2r_SCT_LIST, NULL,
  42     NULL },
  43
  44     /* X509v3 extension to mark a certificate as a pre-certificate */
  45     { NID_ct_precert_poison, 0, ASN1_ITEM_ref(ASN1_NULL),
  46     NULL, NULL, NULL, NULL,
  47     i2s_poison, s2i_poison,
  48     NULL, NULL,
  49     NULL, NULL,
  50     NULL },
  51
  52     /* OCSP extension that contains SCTs */
  53     { NID_ct_cert_scts, 0, NULL,
  54     0, (X509V3_EXT_FREE)SCT_LIST_free,
  55     (X509V3_EXT_D2I)d2i_SCT_LIST, (X509V3_EXT_I2D)i2d_SCT_LIST,
  56     NULL, NULL,
  57     NULL, NULL,
  58     (X509V3_EXT_I2R)i2r_SCT_LIST, NULL,
  59     NULL },
  60 };