crypto/x509/v3_bitst.c

   1 /*
   2  * Copyright 1999-2021 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
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/conf.h>
  13 #include <openssl/x509v3.h>
  14 #include "ext_dat.h"
  15
  16 static BIT_STRING_BITNAME ns_cert_type_table[] = {
  17     {0, "SSL Client", "client"},
  18     {1, "SSL Server", "server"},
  19     {2, "S/MIME", "email"},
  20     {3, "Object Signing", "objsign"},
  21     {4, "Unused", "reserved"},
  22     {5, "SSL CA", "sslCA"},
  23     {6, "S/MIME CA", "emailCA"},
  24     {7, "Object Signing CA", "objCA"},
  25     {-1, NULL, NULL}
  26 };
  27
  28 static BIT_STRING_BITNAME key_usage_type_table[] = {
  29     {0, "Digital Signature", "digitalSignature"},
  30     {1, "Non Repudiation", "nonRepudiation"},
  31     {2, "Key Encipherment", "keyEncipherment"},
  32     {3, "Data Encipherment", "dataEncipherment"},
  33     {4, "Key Agreement", "keyAgreement"},
  34     {5, "Certificate Sign", "keyCertSign"},
  35     {6, "CRL Sign", "cRLSign"},
  36     {7, "Encipher Only", "encipherOnly"},
  37     {8, "Decipher Only", "decipherOnly"},
  38     {-1, NULL, NULL}
  39 };
  40
  41 const X509V3_EXT_METHOD ossl_v3_nscert =
  42 EXT_BITSTRING(NID_netscape_cert_type, ns_cert_type_table);
  43 const X509V3_EXT_METHOD ossl_v3_key_usage =
  44 EXT_BITSTRING(NID_key_usage, key_usage_type_table);
  45
  46 STACK_OF(CONF_VALUE) *i2v_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
  47                                           ASN1_BIT_STRING *bits,
  48                                           STACK_OF(CONF_VALUE) *ret)
  49 {
  50     BIT_STRING_BITNAME *bnam;
  51     for (bnam = method->usr_data; bnam->lname; bnam++) {
  52         if (ASN1_BIT_STRING_get_bit(bits, bnam->bitnum))
  53             X509V3_add_value(bnam->lname, NULL, &ret);
  54     }
  55     return ret;
  56 }
  57
  58 ASN1_BIT_STRING *v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
  59                                      X509V3_CTX *ctx,
  60                                      STACK_OF(CONF_VALUE) *nval)
  61 {
  62     CONF_VALUE *val;
  63     ASN1_BIT_STRING *bs;
  64     int i;
  65     BIT_STRING_BITNAME *bnam;
  66     if ((bs = ASN1_BIT_STRING_new()) == NULL) {
  67         ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
  68         return NULL;
  69     }
  70     for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
  71         val = sk_CONF_VALUE_value(nval, i);
  72         for (bnam = method->usr_data; bnam->lname; bnam++) {
  73             if (strcmp(bnam->sname, val->name) == 0
  74                 || strcmp(bnam->lname, val->name) == 0) {
  75                 if (!ASN1_BIT_STRING_set_bit(bs, bnam->bitnum, 1)) {
  76                     ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
  77                     ASN1_BIT_STRING_free(bs);
  78                     return NULL;
  79                 }
  80                 break;
  81             }
  82         }
  83         if (!bnam->lname) {
  84             ERR_raise_data(ERR_LIB_X509V3, X509V3_R_UNKNOWN_BIT_STRING_ARGUMENT,
  85                            "%s", val->name);
  86             ASN1_BIT_STRING_free(bs);
  87             return NULL;
  88         }
  89     }
  90     return bs;
  91 }