crypto/asn1/asn_moid.c

   1 /*
   2  * Copyright 2002-2020 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 "crypto/ctype.h"
  12 #include <openssl/crypto.h>
  13 #include "internal/cryptlib.h"
  14 #include <openssl/conf.h>
  15 #include <openssl/x509.h>
  16 #include "crypto/asn1.h"
  17 #include "crypto/objects.h"
  18
  19 /* Simple ASN1 OID module: add all objects in a given section */
  20
  21 static int do_create(const char *value, const char *name);
  22
  23 static int oid_module_init(CONF_IMODULE *md, const CONF *cnf)
  24 {
  25     int i;
  26     const char *oid_section;
  27     STACK_OF(CONF_VALUE) *sktmp;
  28     CONF_VALUE *oval;
  29
  30     oid_section = CONF_imodule_get_value(md);
  31     if ((sktmp = NCONF_get_section(cnf, oid_section)) == NULL) {
  32         ERR_raise(ERR_LIB_ASN1, ASN1_R_ERROR_LOADING_SECTION);
  33         return 0;
  34     }
  35     for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
  36         oval = sk_CONF_VALUE_value(sktmp, i);
  37         if (!do_create(oval->value, oval->name)) {
  38             ERR_raise(ERR_LIB_ASN1, ASN1_R_ADDING_OBJECT);
  39             return 0;
  40         }
  41     }
  42     return 1;
  43 }
  44
  45 static void oid_module_finish(CONF_IMODULE *md)
  46 {
  47 }
  48
  49 void ASN1_add_oid_module(void)
  50 {
  51     CONF_module_add("oid_section", oid_module_init, oid_module_finish);
  52 }
  53
  54 /*-
  55  * Create an OID based on a name value pair. Accept two formats.
  56  * shortname = 1.2.3.4
  57  * shortname = some long name, 1.2.3.4
  58  */
  59
  60 static int do_create(const char *value, const char *name)
  61 {
  62     int nid;
  63     const char *ln, *ostr, *p;
  64     char *lntmp = NULL;
  65
  66     p = strrchr(value, ',');
  67     if (p == NULL) {
  68         ln = name;
  69         ostr = value;
  70     } else {
  71         ln = value;
  72         ostr = p + 1;
  73         if (*ostr == '\0')
  74             return 0;
  75         while (ossl_isspace(*ostr))
  76             ostr++;
  77         while (ossl_isspace(*ln))
  78             ln++;
  79         p--;
  80         while (ossl_isspace(*p)) {
  81             if (p == ln)
  82                 return 0;
  83             p--;
  84         }
  85         p++;
  86         if ((lntmp = OPENSSL_malloc((p - ln) + 1)) == NULL)
  87             return 0;
  88         memcpy(lntmp, ln, p - ln);
  89         lntmp[p - ln] = '\0';
  90         ln = lntmp;
  91     }
  92
  93     nid = OBJ_create(ostr, name, ln);
  94
  95     OPENSSL_free(lntmp);
  96
  97     return nid != NID_undef;
  98 }