v3_alt.c
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上传日期:2020-08-09
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- /* v3_alt.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project.
- */
- /* ====================================================================
- * Copyright (c) 1999-2003 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- #include <stdio.h>
- #include "cryptlib.h"
- #include <openssl/conf.h>
- #include <openssl/x509v3.h>
- static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
- static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
- static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p);
- static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens);
- static int do_othername(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx);
- static int do_dirname(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx);
- X509V3_EXT_METHOD v3_alt[] = {
- { NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
- 0,0,0,0,
- 0,0,
- (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
- (X509V3_EXT_V2I)v2i_subject_alt,
- NULL, NULL, NULL},
- { NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES),
- 0,0,0,0,
- 0,0,
- (X509V3_EXT_I2V)i2v_GENERAL_NAMES,
- (X509V3_EXT_V2I)v2i_issuer_alt,
- NULL, NULL, NULL},
- };
- STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
- GENERAL_NAMES *gens, STACK_OF(CONF_VALUE) *ret)
- {
- int i;
- GENERAL_NAME *gen;
- for(i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
- gen = sk_GENERAL_NAME_value(gens, i);
- ret = i2v_GENERAL_NAME(method, gen, ret);
- }
- if(!ret) return sk_CONF_VALUE_new_null();
- return ret;
- }
- STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
- GENERAL_NAME *gen, STACK_OF(CONF_VALUE) *ret)
- {
- unsigned char *p;
- char oline[256], htmp[5];
- int i;
- switch (gen->type)
- {
- case GEN_OTHERNAME:
- X509V3_add_value("othername","<unsupported>", &ret);
- break;
- case GEN_X400:
- X509V3_add_value("X400Name","<unsupported>", &ret);
- break;
- case GEN_EDIPARTY:
- X509V3_add_value("EdiPartyName","<unsupported>", &ret);
- break;
- case GEN_EMAIL:
- X509V3_add_value_uchar("email",gen->d.ia5->data, &ret);
- break;
- case GEN_DNS:
- X509V3_add_value_uchar("DNS",gen->d.ia5->data, &ret);
- break;
- case GEN_URI:
- X509V3_add_value_uchar("URI",gen->d.ia5->data, &ret);
- break;
- case GEN_DIRNAME:
- X509_NAME_oneline(gen->d.dirn, oline, 256);
- X509V3_add_value("DirName",oline, &ret);
- break;
- case GEN_IPADD:
- p = gen->d.ip->data;
- if(gen->d.ip->length == 4)
- BIO_snprintf(oline, sizeof oline,
- "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
- else if(gen->d.ip->length == 16)
- {
- oline[0] = 0;
- for (i = 0; i < 8; i++)
- {
- BIO_snprintf(htmp, sizeof htmp,
- "%X", p[0] << 8 | p[1]);
- p += 2;
- strcat(oline, htmp);
- if (i != 7)
- strcat(oline, ":");
- }
- }
- else
- {
- X509V3_add_value("IP Address","<invalid>", &ret);
- break;
- }
- X509V3_add_value("IP Address",oline, &ret);
- break;
- case GEN_RID:
- i2t_ASN1_OBJECT(oline, 256, gen->d.rid);
- X509V3_add_value("Registered ID",oline, &ret);
- break;
- }
- return ret;
- }
- int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen)
- {
- unsigned char *p;
- int i;
- switch (gen->type)
- {
- case GEN_OTHERNAME:
- BIO_printf(out, "othername:<unsupported>");
- break;
- case GEN_X400:
- BIO_printf(out, "X400Name:<unsupported>");
- break;
- case GEN_EDIPARTY:
- /* Maybe fix this: it is supported now */
- BIO_printf(out, "EdiPartyName:<unsupported>");
- break;
- case GEN_EMAIL:
- BIO_printf(out, "email:%s",gen->d.ia5->data);
- break;
- case GEN_DNS:
- BIO_printf(out, "DNS:%s",gen->d.ia5->data);
- break;
- case GEN_URI:
- BIO_printf(out, "URI:%s",gen->d.ia5->data);
- break;
- case GEN_DIRNAME:
- BIO_printf(out, "DirName: ");
- X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE);
- break;
- case GEN_IPADD:
- p = gen->d.ip->data;
- if(gen->d.ip->length == 4)
- BIO_printf(out, "IP Address:%d.%d.%d.%d",
- p[0], p[1], p[2], p[3]);
- else if(gen->d.ip->length == 16)
- {
- BIO_printf(out, "IP Address");
- for (i = 0; i < 8; i++)
- {
- BIO_printf(out, ":%X", p[0] << 8 | p[1]);
- p += 2;
- }
- BIO_puts(out, "n");
- }
- else
- {
- BIO_printf(out,"IP Address:<invalid>");
- break;
- }
- break;
- case GEN_RID:
- BIO_printf(out, "Registered ID");
- i2a_ASN1_OBJECT(out, gen->d.rid);
- break;
- }
- return 1;
- }
- static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
- {
- GENERAL_NAMES *gens = NULL;
- CONF_VALUE *cnf;
- int i;
- if(!(gens = sk_GENERAL_NAME_new_null())) {
- X509V3err(X509V3_F_V2I_ISSUER_ALT,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
- cnf = sk_CONF_VALUE_value(nval, i);
- if(!name_cmp(cnf->name, "issuer") && cnf->value &&
- !strcmp(cnf->value, "copy")) {
- if(!copy_issuer(ctx, gens)) goto err;
- } else {
- GENERAL_NAME *gen;
- if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
- goto err;
- sk_GENERAL_NAME_push(gens, gen);
- }
- }
- return gens;
- err:
- sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
- return NULL;
- }
- /* Append subject altname of issuer to issuer alt name of subject */
- static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens)
- {
- GENERAL_NAMES *ialt;
- GENERAL_NAME *gen;
- X509_EXTENSION *ext;
- int i;
- if(ctx && (ctx->flags == CTX_TEST)) return 1;
- if(!ctx || !ctx->issuer_cert) {
- X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_NO_ISSUER_DETAILS);
- goto err;
- }
- i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1);
- if(i < 0) return 1;
- if(!(ext = X509_get_ext(ctx->issuer_cert, i)) ||
- !(ialt = X509V3_EXT_d2i(ext)) ) {
- X509V3err(X509V3_F_COPY_ISSUER,X509V3_R_ISSUER_DECODE_ERROR);
- goto err;
- }
- for(i = 0; i < sk_GENERAL_NAME_num(ialt); i++) {
- gen = sk_GENERAL_NAME_value(ialt, i);
- if(!sk_GENERAL_NAME_push(gens, gen)) {
- X509V3err(X509V3_F_COPY_ISSUER,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
- sk_GENERAL_NAME_free(ialt);
- return 1;
-
- err:
- return 0;
-
- }
- static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
- {
- GENERAL_NAMES *gens = NULL;
- CONF_VALUE *cnf;
- int i;
- if(!(gens = sk_GENERAL_NAME_new_null())) {
- X509V3err(X509V3_F_V2I_SUBJECT_ALT,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
- cnf = sk_CONF_VALUE_value(nval, i);
- if(!name_cmp(cnf->name, "email") && cnf->value &&
- !strcmp(cnf->value, "copy")) {
- if(!copy_email(ctx, gens, 0)) goto err;
- } else if(!name_cmp(cnf->name, "email") && cnf->value &&
- !strcmp(cnf->value, "move")) {
- if(!copy_email(ctx, gens, 1)) goto err;
- } else {
- GENERAL_NAME *gen;
- if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
- goto err;
- sk_GENERAL_NAME_push(gens, gen);
- }
- }
- return gens;
- err:
- sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
- return NULL;
- }
- /* Copy any email addresses in a certificate or request to
- * GENERAL_NAMES
- */
- static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p)
- {
- X509_NAME *nm;
- ASN1_IA5STRING *email = NULL;
- X509_NAME_ENTRY *ne;
- GENERAL_NAME *gen = NULL;
- int i;
- if(ctx != NULL && ctx->flags == CTX_TEST)
- return 1;
- if(!ctx || (!ctx->subject_cert && !ctx->subject_req)) {
- X509V3err(X509V3_F_COPY_EMAIL,X509V3_R_NO_SUBJECT_DETAILS);
- goto err;
- }
- /* Find the subject name */
- if(ctx->subject_cert) nm = X509_get_subject_name(ctx->subject_cert);
- else nm = X509_REQ_get_subject_name(ctx->subject_req);
- /* Now add any email address(es) to STACK */
- i = -1;
- while((i = X509_NAME_get_index_by_NID(nm,
- NID_pkcs9_emailAddress, i)) >= 0) {
- ne = X509_NAME_get_entry(nm, i);
- email = M_ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne));
- if (move_p)
- {
- X509_NAME_delete_entry(nm, i);
- i--;
- }
- if(!email || !(gen = GENERAL_NAME_new())) {
- X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- gen->d.ia5 = email;
- email = NULL;
- gen->type = GEN_EMAIL;
- if(!sk_GENERAL_NAME_push(gens, gen)) {
- X509V3err(X509V3_F_COPY_EMAIL,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- gen = NULL;
- }
-
- return 1;
-
- err:
- GENERAL_NAME_free(gen);
- M_ASN1_IA5STRING_free(email);
- return 0;
-
- }
- GENERAL_NAMES *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method,
- X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
- {
- GENERAL_NAME *gen;
- GENERAL_NAMES *gens = NULL;
- CONF_VALUE *cnf;
- int i;
- if(!(gens = sk_GENERAL_NAME_new_null())) {
- X509V3err(X509V3_F_V2I_GENERAL_NAMES,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
- cnf = sk_CONF_VALUE_value(nval, i);
- if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) goto err;
- sk_GENERAL_NAME_push(gens, gen);
- }
- return gens;
- err:
- sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free);
- return NULL;
- }
- GENERAL_NAME *v2i_GENERAL_NAME(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
- CONF_VALUE *cnf)
- {
- return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0);
- }
- GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out,
- X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
- CONF_VALUE *cnf, int is_nc)
- {
- char is_string = 0;
- int type;
- GENERAL_NAME *gen = NULL;
- char *name, *value;
- name = cnf->name;
- value = cnf->value;
- if(!value)
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,X509V3_R_MISSING_VALUE);
- return NULL;
- }
- if (out)
- gen = out;
- else
- {
- gen = GENERAL_NAME_new();
- if(gen == NULL)
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- }
- if(!name_cmp(name, "email"))
- {
- is_string = 1;
- type = GEN_EMAIL;
- }
- else if(!name_cmp(name, "URI"))
- {
- is_string = 1;
- type = GEN_URI;
- }
- else if(!name_cmp(name, "DNS"))
- {
- is_string = 1;
- type = GEN_DNS;
- }
- else if(!name_cmp(name, "RID"))
- {
- ASN1_OBJECT *obj;
- if(!(obj = OBJ_txt2obj(value,0)))
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,X509V3_R_BAD_OBJECT);
- ERR_add_error_data(2, "value=", value);
- goto err;
- }
- gen->d.rid = obj;
- type = GEN_RID;
- }
- else if(!name_cmp(name, "IP"))
- {
- if (is_nc)
- gen->d.ip = a2i_IPADDRESS_NC(value);
- else
- gen->d.ip = a2i_IPADDRESS(value);
- if(gen->d.ip == NULL)
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,X509V3_R_BAD_IP_ADDRESS);
- ERR_add_error_data(2, "value=", value);
- goto err;
- }
- type = GEN_IPADD;
- }
- else if(!name_cmp(name, "dirName"))
- {
- type = GEN_DIRNAME;
- if (!do_dirname(gen, value, ctx))
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,X509V3_R_DIRNAME_ERROR);
- goto err;
- }
- }
- else if(!name_cmp(name, "otherName"))
- {
- if (!do_othername(gen, value, ctx))
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,X509V3_R_OTHERNAME_ERROR);
- goto err;
- }
- type = GEN_OTHERNAME;
- }
- else
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,X509V3_R_UNSUPPORTED_OPTION);
- ERR_add_error_data(2, "name=", name);
- goto err;
- }
- if(is_string)
- {
- if(!(gen->d.ia5 = M_ASN1_IA5STRING_new()) ||
- !ASN1_STRING_set(gen->d.ia5, (unsigned char*)value,
- strlen(value)))
- {
- X509V3err(X509V3_F_V2I_GENERAL_NAME_EX,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
- gen->type = type;
- return gen;
- err:
- GENERAL_NAME_free(gen);
- return NULL;
- }
- static int do_othername(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx)
- {
- char *objtmp = NULL, *p;
- int objlen;
- if (!(p = strchr(value, ';')))
- return 0;
- if (!(gen->d.otherName = OTHERNAME_new()))
- return 0;
- /* Free this up because we will overwrite it.
- * no need to free type_id because it is static
- */
- ASN1_TYPE_free(gen->d.otherName->value);
- if (!(gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx)))
- return 0;
- objlen = p - value;
- objtmp = OPENSSL_malloc(objlen + 1);
- strncpy(objtmp, value, objlen);
- objtmp[objlen] = 0;
- gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0);
- OPENSSL_free(objtmp);
- if (!gen->d.otherName->type_id)
- return 0;
- return 1;
- }
- static int do_dirname(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx)
- {
- int ret;
- STACK_OF(CONF_VALUE) *sk;
- X509_NAME *nm;
- if (!(nm = X509_NAME_new()))
- return 0;
- sk = X509V3_get_section(ctx, value);
- if (!sk)
- {
- X509V3err(X509V3_F_DO_DIRNAME,X509V3_R_SECTION_NOT_FOUND);
- ERR_add_error_data(2, "section=", value);
- X509_NAME_free(nm);
- return 0;
- }
- /* FIXME: should allow other character types... */
- ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC);
- if (!ret)
- X509_NAME_free(nm);
- gen->d.dirn = nm;
-
- return ret;
- }