| /* v3_akey.c */ |
| /* |
| * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project |
| * 1999. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1999 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 <string.h> |
| |
| #include <openssl/asn1.h> |
| #include <openssl/asn1t.h> |
| #include <openssl/conf.h> |
| #include <openssl/err.h> |
| #include <openssl/mem.h> |
| #include <openssl/obj.h> |
| #include <openssl/x509v3.h> |
| |
| #include "internal.h" |
| |
| |
| static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
| AUTHORITY_KEYID *akeyid, |
| STACK_OF(CONF_VALUE) |
| *extlist); |
| static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, |
| STACK_OF(CONF_VALUE) *values); |
| |
| const X509V3_EXT_METHOD v3_akey_id = { |
| NID_authority_key_identifier, |
| X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID), |
| 0, 0, 0, 0, |
| 0, 0, |
| (X509V3_EXT_I2V) i2v_AUTHORITY_KEYID, |
| (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID, |
| 0, 0, |
| NULL |
| }; |
| |
| static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
| AUTHORITY_KEYID *akeyid, |
| STACK_OF(CONF_VALUE) |
| *extlist) |
| { |
| char *tmp = NULL; |
| int extlist_was_null = extlist == NULL; |
| if (akeyid->keyid) { |
| tmp = x509v3_bytes_to_hex(akeyid->keyid->data, akeyid->keyid->length); |
| int ok = tmp != NULL && X509V3_add_value("keyid", tmp, &extlist); |
| OPENSSL_free(tmp); |
| if (!ok) { |
| goto err; |
| } |
| } |
| if (akeyid->issuer) { |
| STACK_OF(CONF_VALUE) *tmpextlist = |
| i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist); |
| if (tmpextlist == NULL) { |
| goto err; |
| } |
| extlist = tmpextlist; |
| } |
| if (akeyid->serial) { |
| tmp = x509v3_bytes_to_hex(akeyid->serial->data, akeyid->serial->length); |
| int ok = tmp != NULL && X509V3_add_value("serial", tmp, &extlist); |
| OPENSSL_free(tmp); |
| if (!ok) { |
| goto err; |
| } |
| } |
| return extlist; |
| |
| err: |
| if (extlist_was_null) { |
| sk_CONF_VALUE_pop_free(extlist, X509V3_conf_free); |
| } |
| return NULL; |
| } |
| |
| /* |
| * Currently two options: keyid: use the issuers subject keyid, the value |
| * 'always' means its is an error if the issuer certificate doesn't have a |
| * key id. issuer: use the issuers cert issuer and serial number. The default |
| * is to only use this if keyid is not present. With the option 'always' this |
| * is always included. |
| */ |
| |
| static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, |
| STACK_OF(CONF_VALUE) *values) |
| { |
| char keyid = 0, issuer = 0; |
| size_t i; |
| int j; |
| CONF_VALUE *cnf; |
| ASN1_OCTET_STRING *ikeyid = NULL; |
| X509_NAME *isname = NULL; |
| GENERAL_NAMES *gens = NULL; |
| GENERAL_NAME *gen = NULL; |
| ASN1_INTEGER *serial = NULL; |
| X509_EXTENSION *ext; |
| X509 *cert; |
| AUTHORITY_KEYID *akeyid; |
| |
| for (i = 0; i < sk_CONF_VALUE_num(values); i++) { |
| cnf = sk_CONF_VALUE_value(values, i); |
| if (!strcmp(cnf->name, "keyid")) { |
| keyid = 1; |
| if (cnf->value && !strcmp(cnf->value, "always")) |
| keyid = 2; |
| } else if (!strcmp(cnf->name, "issuer")) { |
| issuer = 1; |
| if (cnf->value && !strcmp(cnf->value, "always")) |
| issuer = 2; |
| } else { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_UNKNOWN_OPTION); |
| ERR_add_error_data(2, "name=", cnf->name); |
| return NULL; |
| } |
| } |
| |
| if (!ctx || !ctx->issuer_cert) { |
| if (ctx && (ctx->flags == CTX_TEST)) |
| return AUTHORITY_KEYID_new(); |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_ISSUER_CERTIFICATE); |
| return NULL; |
| } |
| |
| cert = ctx->issuer_cert; |
| |
| if (keyid) { |
| j = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1); |
| if ((j >= 0) && (ext = X509_get_ext(cert, j))) |
| ikeyid = X509V3_EXT_d2i(ext); |
| if (keyid == 2 && !ikeyid) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_UNABLE_TO_GET_ISSUER_KEYID); |
| return NULL; |
| } |
| } |
| |
| if ((issuer && !ikeyid) || (issuer == 2)) { |
| isname = X509_NAME_dup(X509_get_issuer_name(cert)); |
| serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert)); |
| if (!isname || !serial) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS); |
| goto err; |
| } |
| } |
| |
| if (!(akeyid = AUTHORITY_KEYID_new())) |
| goto err; |
| |
| if (isname) { |
| if (!(gens = sk_GENERAL_NAME_new_null()) |
| || !(gen = GENERAL_NAME_new()) |
| || !sk_GENERAL_NAME_push(gens, gen)) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| gen->type = GEN_DIRNAME; |
| gen->d.dirn = isname; |
| } |
| |
| akeyid->issuer = gens; |
| akeyid->serial = serial; |
| akeyid->keyid = ikeyid; |
| |
| return akeyid; |
| |
| err: |
| X509_NAME_free(isname); |
| ASN1_INTEGER_free(serial); |
| ASN1_OCTET_STRING_free(ikeyid); |
| return NULL; |
| } |
