408 lines
11 KiB
C
408 lines
11 KiB
C
/* v3_alt.c */
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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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* project 1999.
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*/
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/* ====================================================================
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include "conf.h"
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#include "x509v3.h"
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#ifndef NOPROTO
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static STACK_OF(GENERAL_NAME) *v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *nval);
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static STACK_OF(GENERAL_NAME) *v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *nval);
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static int copy_email(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens);
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static int copy_issuer(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens);
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#else
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static STACK *v2i_issuer_alt();
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static STACK *v2i_subject_alt();
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static int copy_email();
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static int copy_issuer();
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#endif
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X509V3_EXT_METHOD v3_alt[] = {
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{ NID_subject_alt_name, 0,
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(X509V3_EXT_NEW)GENERAL_NAMES_new,
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GENERAL_NAMES_free,
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(X509V3_EXT_D2I)d2i_GENERAL_NAMES,
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i2d_GENERAL_NAMES,
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NULL, NULL,
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(X509V3_EXT_I2V)i2v_GENERAL_NAMES,
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(X509V3_EXT_V2I)v2i_subject_alt,
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NULL, NULL, NULL},
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{ NID_issuer_alt_name, 0,
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(X509V3_EXT_NEW)GENERAL_NAMES_new,
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GENERAL_NAMES_free,
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(X509V3_EXT_D2I)d2i_GENERAL_NAMES,
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i2d_GENERAL_NAMES,
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NULL, NULL,
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(X509V3_EXT_I2V)i2v_GENERAL_NAMES,
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(X509V3_EXT_V2I)v2i_issuer_alt,
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NULL, NULL, NULL},
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EXT_END
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};
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STACK *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
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STACK_OF(GENERAL_NAME) *gens, STACK *ret)
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{
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int i;
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GENERAL_NAME *gen;
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for(i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
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gen = sk_GENERAL_NAME_value(gens, i);
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ret = i2v_GENERAL_NAME(method, gen, ret);
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}
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return ret;
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}
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STACK *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, GENERAL_NAME *gen,
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STACK *ret)
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{
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char oline[256];
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unsigned char *p;
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switch (gen->type)
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{
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case GEN_OTHERNAME:
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X509V3_add_value("othername","<unsupported>", &ret);
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break;
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case GEN_X400:
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X509V3_add_value("X400Name","<unsupported>", &ret);
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break;
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case GEN_EDIPARTY:
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X509V3_add_value("EdiPartyName","<unsupported>", &ret);
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break;
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case GEN_EMAIL:
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X509V3_add_value("email",gen->d.ia5->data, &ret);
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break;
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case GEN_DNS:
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X509V3_add_value("DNS",gen->d.ia5->data, &ret);
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break;
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case GEN_URI:
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X509V3_add_value("URI",gen->d.ia5->data, &ret);
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break;
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case GEN_DIRNAME:
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X509_NAME_oneline(gen->d.dirn, oline, 256);
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X509V3_add_value("DirName",oline, &ret);
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break;
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case GEN_IPADD:
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p = gen->d.ip->data;
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/* BUG: doesn't support IPV6 */
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if(gen->d.ip->length != 4) {
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X509V3_add_value("IP Address","<invalid>", &ret);
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break;
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}
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sprintf(oline, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
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X509V3_add_value("IP Address",oline, &ret);
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break;
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case GEN_RID:
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i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
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X509V3_add_value("Registered ID",oline, &ret);
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break;
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}
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return ret;
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}
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static STACK_OF(GENERAL_NAME) *v2i_issuer_alt(X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx, STACK *nval)
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{
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STACK_OF(GENERAL_NAME) *gens = NULL;
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CONF_VALUE *cnf;
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int i;
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if(!(gens = sk_GENERAL_NAME_new(NULL))) {
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X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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for(i = 0; i < sk_num(nval); i++) {
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cnf = (CONF_VALUE *)sk_value(nval, i);
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if(!name_cmp(cnf->name, "issuer") && cnf->value &&
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!strcmp(cnf->value, "copy")) {
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if(!copy_issuer(ctx, gens)) goto err;
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} else {
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GENERAL_NAME *gen;
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if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
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goto err;
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sk_GENERAL_NAME_push(gens, gen);
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}
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}
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return gens;
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err:
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sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
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return NULL;
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}
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/* Append subject altname of issuer to issuer alt name of subject */
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static int copy_issuer(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens)
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{
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STACK_OF(GENERAL_NAME) *ialt;
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GENERAL_NAME *gen;
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X509_EXTENSION *ext;
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int i;
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if(ctx && (ctx->flags == CTX_TEST)) return 1;
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if(!ctx || !ctx->issuer_cert) {
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X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS);
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goto err;
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}
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i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
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if(i < 0) return 1;
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if(!(ext = X509_get_ext(ctx->issuer_cert, i)) ||
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!(ialt = X509V3_EXT_d2i(ext)) ) {
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X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR);
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goto err;
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}
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for(i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
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gen = sk_GENERAL_NAME_value(ialt, i);
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if(!sk_GENERAL_NAME_push(gens, gen)) {
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X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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}
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sk_GENERAL_NAME_free(ialt);
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return 1;
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err:
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return 0;
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}
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static STACK_OF(GENERAL_NAME) *v2i_subject_alt(X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx, STACK *nval)
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{
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STACK_OF(GENERAL_NAME) *gens = NULL;
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CONF_VALUE *cnf;
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int i;
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if(!(gens = sk_GENERAL_NAME_new(NULL))) {
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X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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for(i = 0; i < sk_num(nval); i++) {
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cnf = (CONF_VALUE *)sk_value(nval, i);
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if(!name_cmp(cnf->name, "email") && cnf->value &&
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!strcmp(cnf->value, "copy")) {
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if(!copy_email(ctx, gens)) goto err;
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} else {
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GENERAL_NAME *gen;
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if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
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goto err;
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sk_GENERAL_NAME_push(gens, gen);
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}
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}
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return gens;
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err:
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sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
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return NULL;
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}
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/* Copy any email addresses in a certificate or request to
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* GENERAL_NAMES
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*/
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static int copy_email(X509V3_CTX *ctx, STACK_OF(GENERAL_NAME) *gens)
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{
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X509_NAME *nm;
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ASN1_IA5STRING *email = NULL;
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X509_NAME_ENTRY *ne;
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GENERAL_NAME *gen = NULL;
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int i;
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if(ctx->flags == CTX_TEST) return 1;
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if(!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
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X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS);
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goto err;
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}
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/* Find the subject name */
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if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert);
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else nm = X509_REQ_get_subject_name(ctx->subject_req);
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/* Now add any email address(es) to STACK */
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i = -1;
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while((i = X509_NAME_get_index_by_NID(nm,
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NID_pkcs9_emailAddress, i)) > 0) {
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ne = X509_NAME_get_entry(nm, i);
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email = ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne));
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if(!email || !(gen = GENERAL_NAME_new())) {
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X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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gen->d.ia5 = email;
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email = NULL;
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gen->type = GEN_EMAIL;
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if(!sk_GENERAL_NAME_push(gens, gen)) {
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X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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gen = NULL;
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}
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return 1;
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err:
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GENERAL_NAME_free(gen);
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ASN1_IA5STRING_free(email);
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return 0;
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}
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STACK_OF(GENERAL_NAME) *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx, STACK *nval)
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{
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GENERAL_NAME *gen;
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STACK_OF(GENERAL_NAME) *gens = NULL;
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CONF_VALUE *cnf;
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int i;
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if(!(gens = sk_GENERAL_NAME_new(NULL))) {
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X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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for(i = 0; i < sk_num(nval); i++) {
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cnf = (CONF_VALUE *)sk_value(nval, i);
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if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err;
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sk_GENERAL_NAME_push(gens, gen);
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}
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return gens;
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err:
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sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
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return NULL;
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}
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GENERAL_NAME *v2i_GENERAL_NAME(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
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CONF_VALUE *cnf)
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{
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char is_string = 0;
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int type;
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GENERAL_NAME *gen = NULL;
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char *name, *value;
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name = cnf->name;
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value = cnf->value;
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if(!value) {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_MISSING_VALUE);
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return NULL;
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}
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if(!(gen = GENERAL_NAME_new())) {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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if(!name_cmp(name, "email")) {
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is_string = 1;
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type = GEN_EMAIL;
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} else if(!name_cmp(name, "URI")) {
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is_string = 1;
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type = GEN_URI;
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} else if(!name_cmp(name, "DNS")) {
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is_string = 1;
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type = GEN_DNS;
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} else if(!name_cmp(name, "RID")) {
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ASN1_OBJECT *obj;
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if(!(obj = OBJ_txt2obj(value,0))) {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_OBJECT);
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ERR_add_error_data(2, "value=", value);
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goto err;
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}
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gen->d.rid = obj;
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type = GEN_RID;
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} else if(!name_cmp(name, "IP")) {
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int i1,i2,i3,i4;
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unsigned char ip[4];
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if((sscanf(value, "%d.%d.%d.%d",&i1,&i2,&i3,&i4) != 4) ||
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(i1 < 0) || (i1 > 255) || (i2 < 0) || (i2 > 255) ||
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(i3 < 0) || (i3 > 255) || (i4 < 0) || (i4 > 255) ) {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_BAD_IP_ADDRESS);
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ERR_add_error_data(2, "value=", value);
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goto err;
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}
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ip[0] = i1; ip[1] = i2 ; ip[2] = i3 ; ip[3] = i4;
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if(!(gen->d.ip = ASN1_OCTET_STRING_new()) ||
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!ASN1_STRING_set(gen->d.ip, ip, 4)) {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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type = GEN_IPADD;
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} else {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,X509V3_R_UNSUPPORTED_OPTION);
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ERR_add_error_data(2, "name=", name);
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goto err;
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}
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if(is_string) {
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if(!(gen->d.ia5 = ASN1_IA5STRING_new()) ||
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!ASN1_STRING_set(gen->d.ia5, value, strlen(value))) {
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X509V3err(X509V3_F_V2I_GENERAL_NAME,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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}
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gen->type = type;
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return gen;
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err:
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GENERAL_NAME_free(gen);
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return NULL;
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}
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