- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- /* ====================================================================
- * Copyright (c) 1998-2007 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
- * openssl-core@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).
- *
- */
- /* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- * ECC cipher suite support in OpenSSL originally developed by
- * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
- */
- /* ====================================================================
- * Copyright 2005 Nokia. All rights reserved.
- *
- * The portions of the attached software ("Contribution") is developed by
- * Nokia Corporation and is licensed pursuant to the OpenSSL open source
- * license.
- *
- * The Contribution, originally written by Mika Kousa and Pasi Eronen of
- * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
- * support (see RFC 4279) to OpenSSL.
- *
- * No patent licenses or other rights except those expressly stated in
- * the OpenSSL open source license shall be deemed granted or received
- * expressly, by implication, estoppel, or otherwise.
- *
- * No assurances are provided by Nokia that the Contribution does not
- * infringe the patent or other intellectual property rights of any third
- * party or that the license provides you with all the necessary rights
- * to make use of the Contribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
- * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
- * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
- * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
- * OTHERWISE. */
-
- #include <openssl/ssl.h>
-
- #include <assert.h>
-
- #include <openssl/asn1.h>
- #include <openssl/bytestring.h>
- #include <openssl/err.h>
- #include <openssl/pem.h>
- #include <openssl/stack.h>
- #include <openssl/x509.h>
- #include <openssl/x509v3.h>
- #include <openssl/x509_vfy.h>
-
- #include "internal.h"
- #include "../crypto/internal.h"
-
-
- /* check_ssl_x509_method asserts that |ssl| has the X509-based method
- * installed. Calling an X509-based method on an |ssl| with a different method
- * will likely misbehave and possibly crash or leak memory. */
- static void check_ssl_x509_method(const SSL *ssl) {
- assert(ssl == NULL || ssl->ctx->x509_method == &ssl_crypto_x509_method);
- }
-
- /* check_ssl_ctx_x509_method acts like |check_ssl_x509_method|, but for an
- * |SSL_CTX|. */
- static void check_ssl_ctx_x509_method(const SSL_CTX *ctx) {
- assert(ctx == NULL || ctx->x509_method == &ssl_crypto_x509_method);
- }
-
- X509 *SSL_get_peer_certificate(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- if (ssl == NULL) {
- return NULL;
- }
- SSL_SESSION *session = SSL_get_session(ssl);
- if (session == NULL || session->x509_peer == NULL) {
- return NULL;
- }
- X509_up_ref(session->x509_peer);
- return session->x509_peer;
- }
-
- STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- if (ssl == NULL) {
- return NULL;
- }
- SSL_SESSION *session = SSL_get_session(ssl);
- if (session == NULL ||
- session->x509_chain == NULL) {
- return NULL;
- }
-
- if (!ssl->server) {
- return session->x509_chain;
- }
-
- /* OpenSSL historically didn't include the leaf certificate in the returned
- * certificate chain, but only for servers. */
- if (session->x509_chain_without_leaf == NULL) {
- session->x509_chain_without_leaf = sk_X509_new_null();
- if (session->x509_chain_without_leaf == NULL) {
- return NULL;
- }
-
- for (size_t i = 1; i < sk_X509_num(session->x509_chain); i++) {
- X509 *cert = sk_X509_value(session->x509_chain, i);
- if (!sk_X509_push(session->x509_chain_without_leaf, cert)) {
- sk_X509_pop_free(session->x509_chain_without_leaf, X509_free);
- session->x509_chain_without_leaf = NULL;
- return NULL;
- }
- X509_up_ref(cert);
- }
- }
-
- return session->x509_chain_without_leaf;
- }
-
- STACK_OF(X509) *SSL_get_peer_full_cert_chain(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- SSL_SESSION *session = SSL_get_session(ssl);
- if (session == NULL) {
- return NULL;
- }
-
- return session->x509_chain;
- }
-
- int SSL_CTX_set_purpose(SSL_CTX *ctx, int purpose) {
- check_ssl_ctx_x509_method(ctx);
- return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
- }
-
- int SSL_set_purpose(SSL *ssl, int purpose) {
- check_ssl_x509_method(ssl);
- return X509_VERIFY_PARAM_set_purpose(ssl->param, purpose);
- }
-
- int SSL_CTX_set_trust(SSL_CTX *ctx, int trust) {
- check_ssl_ctx_x509_method(ctx);
- return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
- }
-
- int SSL_set_trust(SSL *ssl, int trust) {
- check_ssl_x509_method(ssl);
- return X509_VERIFY_PARAM_set_trust(ssl->param, trust);
- }
-
- int SSL_CTX_set1_param(SSL_CTX *ctx, const X509_VERIFY_PARAM *param) {
- check_ssl_ctx_x509_method(ctx);
- return X509_VERIFY_PARAM_set1(ctx->param, param);
- }
-
- int SSL_set1_param(SSL *ssl, const X509_VERIFY_PARAM *param) {
- check_ssl_x509_method(ssl);
- return X509_VERIFY_PARAM_set1(ssl->param, param);
- }
-
- X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return ctx->param;
- }
-
- X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) {
- check_ssl_x509_method(ssl);
- return ssl->param;
- }
-
- int SSL_get_verify_depth(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- return X509_VERIFY_PARAM_get_depth(ssl->param);
- }
-
- int (*SSL_get_verify_callback(const SSL *ssl))(int, X509_STORE_CTX *) {
- check_ssl_x509_method(ssl);
- return ssl->verify_callback;
- }
-
- int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return ctx->verify_mode;
- }
-
- int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return X509_VERIFY_PARAM_get_depth(ctx->param);
- }
-
- int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(
- int ok, X509_STORE_CTX *store_ctx) {
- check_ssl_ctx_x509_method(ctx);
- return ctx->default_verify_callback;
- }
-
- void SSL_set_verify(SSL *ssl, int mode,
- int (*callback)(int ok, X509_STORE_CTX *store_ctx)) {
- check_ssl_x509_method(ssl);
- ssl->verify_mode = mode;
- if (callback != NULL) {
- ssl->verify_callback = callback;
- }
- }
-
- void SSL_set_verify_depth(SSL *ssl, int depth) {
- check_ssl_x509_method(ssl);
- X509_VERIFY_PARAM_set_depth(ssl->param, depth);
- }
-
- void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
- int (*cb)(X509_STORE_CTX *store_ctx,
- void *arg),
- void *arg) {
- check_ssl_ctx_x509_method(ctx);
- ctx->app_verify_callback = cb;
- ctx->app_verify_arg = arg;
- }
-
- void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
- int (*cb)(int, X509_STORE_CTX *)) {
- check_ssl_ctx_x509_method(ctx);
- ctx->verify_mode = mode;
- ctx->default_verify_callback = cb;
- }
-
- void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) {
- check_ssl_ctx_x509_method(ctx);
- X509_VERIFY_PARAM_set_depth(ctx->param, depth);
- }
-
- int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return X509_STORE_set_default_paths(ctx->cert_store);
- }
-
- int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *ca_file,
- const char *ca_dir) {
- check_ssl_ctx_x509_method(ctx);
- return X509_STORE_load_locations(ctx->cert_store, ca_file, ca_dir);
- }
-
- void SSL_set_verify_result(SSL *ssl, long result) {
- check_ssl_x509_method(ssl);
- if (result != X509_V_OK) {
- abort();
- }
- }
-
- long SSL_get_verify_result(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- SSL_SESSION *session = SSL_get_session(ssl);
- if (session == NULL) {
- return X509_V_ERR_INVALID_CALL;
- }
- return session->verify_result;
- }
-
- X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return ctx->cert_store;
- }
-
- void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) {
- check_ssl_ctx_x509_method(ctx);
- X509_STORE_free(ctx->cert_store);
- ctx->cert_store = store;
- }
-
- /* x509_to_buffer returns a |CRYPTO_BUFFER| that contains the serialised
- * contents of |x509|. */
- static CRYPTO_BUFFER *x509_to_buffer(X509 *x509) {
- uint8_t *buf = NULL;
- int cert_len = i2d_X509(x509, &buf);
- if (cert_len <= 0) {
- return 0;
- }
-
- CRYPTO_BUFFER *buffer = CRYPTO_BUFFER_new(buf, cert_len, NULL);
- OPENSSL_free(buf);
-
- return buffer;
- }
-
- /* new_leafless_chain returns a fresh stack of buffers set to {NULL}. */
- static STACK_OF(CRYPTO_BUFFER) *new_leafless_chain(void) {
- STACK_OF(CRYPTO_BUFFER) *chain = sk_CRYPTO_BUFFER_new_null();
- if (chain == NULL) {
- return NULL;
- }
-
- if (!sk_CRYPTO_BUFFER_push(chain, NULL)) {
- sk_CRYPTO_BUFFER_free(chain);
- return NULL;
- }
-
- return chain;
- }
-
- /* ssl_cert_set_chain sets elements 1.. of |cert->chain| to the serialised
- * forms of elements of |chain|. It returns one on success or zero on error, in
- * which case no change to |cert->chain| is made. It preverses the existing
- * leaf from |cert->chain|, if any. */
- static int ssl_cert_set_chain(CERT *cert, STACK_OF(X509) *chain) {
- STACK_OF(CRYPTO_BUFFER) *new_chain = NULL;
-
- if (cert->chain != NULL) {
- new_chain = sk_CRYPTO_BUFFER_new_null();
- if (new_chain == NULL) {
- return 0;
- }
-
- CRYPTO_BUFFER *leaf = sk_CRYPTO_BUFFER_value(cert->chain, 0);
- if (!sk_CRYPTO_BUFFER_push(new_chain, leaf)) {
- goto err;
- }
- /* |leaf| might be NULL if it's a “leafless” chain. */
- if (leaf != NULL) {
- CRYPTO_BUFFER_up_ref(leaf);
- }
- }
-
- for (size_t i = 0; i < sk_X509_num(chain); i++) {
- if (new_chain == NULL) {
- new_chain = new_leafless_chain();
- if (new_chain == NULL) {
- goto err;
- }
- }
-
- CRYPTO_BUFFER *buffer = x509_to_buffer(sk_X509_value(chain, i));
- if (buffer == NULL ||
- !sk_CRYPTO_BUFFER_push(new_chain, buffer)) {
- CRYPTO_BUFFER_free(buffer);
- goto err;
- }
- }
-
- sk_CRYPTO_BUFFER_pop_free(cert->chain, CRYPTO_BUFFER_free);
- cert->chain = new_chain;
-
- return 1;
-
- err:
- sk_CRYPTO_BUFFER_pop_free(new_chain, CRYPTO_BUFFER_free);
- return 0;
- }
-
- static void ssl_crypto_x509_cert_flush_cached_leaf(CERT *cert) {
- X509_free(cert->x509_leaf);
- cert->x509_leaf = NULL;
- }
-
- static void ssl_crypto_x509_cert_flush_cached_chain(CERT *cert) {
- sk_X509_pop_free(cert->x509_chain, X509_free);
- cert->x509_chain = NULL;
- }
-
- static int ssl_crypto_x509_check_client_CA_list(
- STACK_OF(CRYPTO_BUFFER) *names) {
- for (size_t i = 0; i < sk_CRYPTO_BUFFER_num(names); i++) {
- const CRYPTO_BUFFER *buffer = sk_CRYPTO_BUFFER_value(names, i);
- const uint8_t *inp = CRYPTO_BUFFER_data(buffer);
- X509_NAME *name = d2i_X509_NAME(NULL, &inp, CRYPTO_BUFFER_len(buffer));
- const int ok = name != NULL && inp == CRYPTO_BUFFER_data(buffer) +
- CRYPTO_BUFFER_len(buffer);
- X509_NAME_free(name);
- if (!ok) {
- return 0;
- }
- }
-
- return 1;
- }
-
- static void ssl_crypto_x509_cert_clear(CERT *cert) {
- ssl_crypto_x509_cert_flush_cached_leaf(cert);
- ssl_crypto_x509_cert_flush_cached_chain(cert);
-
- X509_free(cert->x509_stash);
- cert->x509_stash = NULL;
- }
-
- static void ssl_crypto_x509_cert_free(CERT *cert) {
- ssl_crypto_x509_cert_clear(cert);
- X509_STORE_free(cert->verify_store);
- }
-
- static void ssl_crypto_x509_cert_dup(CERT *new_cert, const CERT *cert) {
- if (cert->verify_store != NULL) {
- X509_STORE_up_ref(cert->verify_store);
- new_cert->verify_store = cert->verify_store;
- }
- }
-
- static int ssl_crypto_x509_session_cache_objects(SSL_SESSION *sess) {
- STACK_OF(X509) *chain = NULL;
- const size_t num_certs = sk_CRYPTO_BUFFER_num(sess->certs);
-
- if (num_certs > 0) {
- chain = sk_X509_new_null();
- if (chain == NULL) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
-
- X509 *leaf = NULL;
- for (size_t i = 0; i < num_certs; i++) {
- X509 *x509 = X509_parse_from_buffer(sk_CRYPTO_BUFFER_value(sess->certs, i));
- if (x509 == NULL) {
- OPENSSL_PUT_ERROR(SSL, SSL_R_DECODE_ERROR);
- goto err;
- }
- if (!sk_X509_push(chain, x509)) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
- X509_free(x509);
- goto err;
- }
- if (i == 0) {
- leaf = x509;
- }
- }
-
- sk_X509_pop_free(sess->x509_chain, X509_free);
- sess->x509_chain = chain;
- sk_X509_pop_free(sess->x509_chain_without_leaf, X509_free);
- sess->x509_chain_without_leaf = NULL;
-
- X509_free(sess->x509_peer);
- if (leaf != NULL) {
- X509_up_ref(leaf);
- }
- sess->x509_peer = leaf;
-
- return 1;
-
- err:
- sk_X509_pop_free(chain, X509_free);
- return 0;
- }
-
- static int ssl_crypto_x509_session_dup(SSL_SESSION *new_session,
- const SSL_SESSION *session) {
- if (session->x509_peer != NULL) {
- X509_up_ref(session->x509_peer);
- new_session->x509_peer = session->x509_peer;
- }
- if (session->x509_chain != NULL) {
- new_session->x509_chain = X509_chain_up_ref(session->x509_chain);
- if (new_session->x509_chain == NULL) {
- return 0;
- }
- }
-
- return 1;
- }
-
- static void ssl_crypto_x509_session_clear(SSL_SESSION *session) {
- X509_free(session->x509_peer);
- session->x509_peer = NULL;
- sk_X509_pop_free(session->x509_chain, X509_free);
- session->x509_chain = NULL;
- sk_X509_pop_free(session->x509_chain_without_leaf, X509_free);
- session->x509_chain_without_leaf = NULL;
- }
-
- static int ssl_verify_alarm_type(long type) {
- switch (type) {
- case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
- case X509_V_ERR_UNABLE_TO_GET_CRL:
- case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
- return SSL_AD_UNKNOWN_CA;
-
- case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
- case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
- case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
- case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
- case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
- case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
- case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
- case X509_V_ERR_CERT_NOT_YET_VALID:
- case X509_V_ERR_CRL_NOT_YET_VALID:
- case X509_V_ERR_CERT_UNTRUSTED:
- case X509_V_ERR_CERT_REJECTED:
- case X509_V_ERR_HOSTNAME_MISMATCH:
- case X509_V_ERR_EMAIL_MISMATCH:
- case X509_V_ERR_IP_ADDRESS_MISMATCH:
- return SSL_AD_BAD_CERTIFICATE;
-
- case X509_V_ERR_CERT_SIGNATURE_FAILURE:
- case X509_V_ERR_CRL_SIGNATURE_FAILURE:
- return SSL_AD_DECRYPT_ERROR;
-
- case X509_V_ERR_CERT_HAS_EXPIRED:
- case X509_V_ERR_CRL_HAS_EXPIRED:
- return SSL_AD_CERTIFICATE_EXPIRED;
-
- case X509_V_ERR_CERT_REVOKED:
- return SSL_AD_CERTIFICATE_REVOKED;
-
- case X509_V_ERR_UNSPECIFIED:
- case X509_V_ERR_OUT_OF_MEM:
- case X509_V_ERR_INVALID_CALL:
- case X509_V_ERR_STORE_LOOKUP:
- return SSL_AD_INTERNAL_ERROR;
-
- case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
- case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
- case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
- case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
- case X509_V_ERR_CERT_CHAIN_TOO_LONG:
- case X509_V_ERR_PATH_LENGTH_EXCEEDED:
- case X509_V_ERR_INVALID_CA:
- return SSL_AD_UNKNOWN_CA;
-
- case X509_V_ERR_APPLICATION_VERIFICATION:
- return SSL_AD_HANDSHAKE_FAILURE;
-
- case X509_V_ERR_INVALID_PURPOSE:
- return SSL_AD_UNSUPPORTED_CERTIFICATE;
-
- default:
- return SSL_AD_CERTIFICATE_UNKNOWN;
- }
- }
-
- static int ssl_crypto_x509_session_verify_cert_chain(SSL_SESSION *session,
- SSL *ssl) {
- STACK_OF(X509) *const cert_chain = session->x509_chain;
- if (cert_chain == NULL || sk_X509_num(cert_chain) == 0) {
- return 0;
- }
-
- X509_STORE *verify_store = ssl->ctx->cert_store;
- if (ssl->cert->verify_store != NULL) {
- verify_store = ssl->cert->verify_store;
- }
-
- X509 *leaf = sk_X509_value(cert_chain, 0);
- int ret = 0;
- X509_STORE_CTX ctx;
- if (!X509_STORE_CTX_init(&ctx, verify_store, leaf, cert_chain)) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_X509_LIB);
- return 0;
- }
- if (!X509_STORE_CTX_set_ex_data(&ctx, SSL_get_ex_data_X509_STORE_CTX_idx(),
- ssl)) {
- goto err;
- }
-
- /* We need to inherit the verify parameters. These can be determined by the
- * context: if its a server it will verify SSL client certificates or vice
- * versa. */
- X509_STORE_CTX_set_default(&ctx, ssl->server ? "ssl_client" : "ssl_server");
-
- /* Anything non-default in "param" should overwrite anything in the ctx. */
- X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), ssl->param);
-
- if (ssl->verify_callback) {
- X509_STORE_CTX_set_verify_cb(&ctx, ssl->verify_callback);
- }
-
- int verify_ret;
- if (ssl->ctx->app_verify_callback != NULL) {
- verify_ret = ssl->ctx->app_verify_callback(&ctx, ssl->ctx->app_verify_arg);
- } else {
- verify_ret = X509_verify_cert(&ctx);
- }
-
- session->verify_result = ctx.error;
-
- /* If |SSL_VERIFY_NONE|, the error is non-fatal, but we keep the result. */
- if (verify_ret <= 0 && ssl->verify_mode != SSL_VERIFY_NONE) {
- ssl3_send_alert(ssl, SSL3_AL_FATAL, ssl_verify_alarm_type(ctx.error));
- OPENSSL_PUT_ERROR(SSL, SSL_R_CERTIFICATE_VERIFY_FAILED);
- goto err;
- }
-
- ERR_clear_error();
- ret = 1;
-
- err:
- X509_STORE_CTX_cleanup(&ctx);
- return ret;
- }
-
- static void ssl_crypto_x509_hs_flush_cached_ca_names(SSL_HANDSHAKE *hs) {
- sk_X509_NAME_pop_free(hs->cached_x509_ca_names, X509_NAME_free);
- hs->cached_x509_ca_names = NULL;
- }
-
- static int ssl_crypto_x509_ssl_new(SSL *ssl) {
- ssl->param = X509_VERIFY_PARAM_new();
- if (ssl->param == NULL) {
- return 0;
- }
- X509_VERIFY_PARAM_inherit(ssl->param, ssl->ctx->param);
- return 1;
- }
-
- static void ssl_crypto_x509_ssl_flush_cached_client_CA(SSL *ssl) {
- sk_X509_NAME_pop_free(ssl->cached_x509_client_CA, X509_NAME_free);
- ssl->cached_x509_client_CA = NULL;
- }
-
- static void ssl_crypto_x509_ssl_free(SSL *ssl) {
- ssl_crypto_x509_ssl_flush_cached_client_CA(ssl);
- X509_VERIFY_PARAM_free(ssl->param);
- }
-
- static int ssl_crypto_x509_ssl_auto_chain_if_needed(SSL *ssl) {
- /* Only build a chain if there are no intermediates configured and the feature
- * isn't disabled. */
- if ((ssl->mode & SSL_MODE_NO_AUTO_CHAIN) ||
- !ssl_has_certificate(ssl) ||
- ssl->cert->chain == NULL ||
- sk_CRYPTO_BUFFER_num(ssl->cert->chain) > 1) {
- return 1;
- }
-
- X509 *leaf =
- X509_parse_from_buffer(sk_CRYPTO_BUFFER_value(ssl->cert->chain, 0));
- if (!leaf) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_X509_LIB);
- return 0;
- }
-
- X509_STORE_CTX ctx;
- if (!X509_STORE_CTX_init(&ctx, ssl->ctx->cert_store, leaf, NULL)) {
- X509_free(leaf);
- OPENSSL_PUT_ERROR(SSL, ERR_R_X509_LIB);
- return 0;
- }
-
- /* Attempt to build a chain, ignoring the result. */
- X509_verify_cert(&ctx);
- X509_free(leaf);
- ERR_clear_error();
-
- /* Remove the leaf from the generated chain. */
- X509_free(sk_X509_shift(ctx.chain));
-
- const int ok = ssl_cert_set_chain(ssl->cert, ctx.chain);
- X509_STORE_CTX_cleanup(&ctx);
- if (!ok) {
- return 0;
- }
-
- ssl_crypto_x509_cert_flush_cached_chain(ssl->cert);
-
- return 1;
- }
-
- static void ssl_crypto_x509_ssl_ctx_flush_cached_client_CA(SSL_CTX *ctx) {
- sk_X509_NAME_pop_free(ctx->cached_x509_client_CA, X509_NAME_free);
- ctx->cached_x509_client_CA = NULL;
- }
-
- static int ssl_crypto_x509_ssl_ctx_new(SSL_CTX *ctx) {
- ctx->cert_store = X509_STORE_new();
- ctx->param = X509_VERIFY_PARAM_new();
- return (ctx->cert_store != NULL && ctx->param != NULL);
- }
-
- static void ssl_crypto_x509_ssl_ctx_free(SSL_CTX *ctx) {
- ssl_crypto_x509_ssl_ctx_flush_cached_client_CA(ctx);
- X509_VERIFY_PARAM_free(ctx->param);
- X509_STORE_free(ctx->cert_store);
- }
-
- const SSL_X509_METHOD ssl_crypto_x509_method = {
- ssl_crypto_x509_check_client_CA_list,
- ssl_crypto_x509_cert_clear,
- ssl_crypto_x509_cert_free,
- ssl_crypto_x509_cert_dup,
- ssl_crypto_x509_cert_flush_cached_chain,
- ssl_crypto_x509_cert_flush_cached_leaf,
- ssl_crypto_x509_session_cache_objects,
- ssl_crypto_x509_session_dup,
- ssl_crypto_x509_session_clear,
- ssl_crypto_x509_session_verify_cert_chain,
- ssl_crypto_x509_hs_flush_cached_ca_names,
- ssl_crypto_x509_ssl_new,
- ssl_crypto_x509_ssl_free,
- ssl_crypto_x509_ssl_flush_cached_client_CA,
- ssl_crypto_x509_ssl_auto_chain_if_needed,
- ssl_crypto_x509_ssl_ctx_new,
- ssl_crypto_x509_ssl_ctx_free,
- ssl_crypto_x509_ssl_ctx_flush_cached_client_CA,
- };
-
- static int ssl_use_certificate(CERT *cert, X509 *x) {
- if (x == NULL) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
-
- CRYPTO_BUFFER *buffer = x509_to_buffer(x);
- if (buffer == NULL) {
- return 0;
- }
-
- const int ok = ssl_set_cert(cert, buffer);
- CRYPTO_BUFFER_free(buffer);
- return ok;
- }
-
- int SSL_use_certificate(SSL *ssl, X509 *x) {
- check_ssl_x509_method(ssl);
- return ssl_use_certificate(ssl->cert, x);
- }
-
- int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x) {
- check_ssl_ctx_x509_method(ctx);
- return ssl_use_certificate(ctx->cert, x);
- }
-
- /* ssl_cert_cache_leaf_cert sets |cert->x509_leaf|, if currently NULL, from the
- * first element of |cert->chain|. */
- static int ssl_cert_cache_leaf_cert(CERT *cert) {
- assert(cert->x509_method);
-
- if (cert->x509_leaf != NULL ||
- cert->chain == NULL) {
- return 1;
- }
-
- CRYPTO_BUFFER *leaf = sk_CRYPTO_BUFFER_value(cert->chain, 0);
- if (!leaf) {
- return 1;
- }
-
- cert->x509_leaf = X509_parse_from_buffer(leaf);
- return cert->x509_leaf != NULL;
- }
-
- static X509 *ssl_cert_get0_leaf(CERT *cert) {
- if (cert->x509_leaf == NULL &&
- !ssl_cert_cache_leaf_cert(cert)) {
- return NULL;
- }
-
- return cert->x509_leaf;
- }
-
- X509 *SSL_get_certificate(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- return ssl_cert_get0_leaf(ssl->cert);
- }
-
- X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- CRYPTO_MUTEX_lock_write((CRYPTO_MUTEX *) &ctx->lock);
- X509 *ret = ssl_cert_get0_leaf(ctx->cert);
- CRYPTO_MUTEX_unlock_write((CRYPTO_MUTEX *) &ctx->lock);
- return ret;
- }
-
- static int ssl_cert_set0_chain(CERT *cert, STACK_OF(X509) *chain) {
- if (!ssl_cert_set_chain(cert, chain)) {
- return 0;
- }
-
- sk_X509_pop_free(chain, X509_free);
- ssl_crypto_x509_cert_flush_cached_chain(cert);
- return 1;
- }
-
- static int ssl_cert_set1_chain(CERT *cert, STACK_OF(X509) *chain) {
- if (!ssl_cert_set_chain(cert, chain)) {
- return 0;
- }
-
- ssl_crypto_x509_cert_flush_cached_chain(cert);
- return 1;
- }
-
- static int ssl_cert_append_cert(CERT *cert, X509 *x509) {
- assert(cert->x509_method);
-
- CRYPTO_BUFFER *buffer = x509_to_buffer(x509);
- if (buffer == NULL) {
- return 0;
- }
-
- if (cert->chain != NULL) {
- if (!sk_CRYPTO_BUFFER_push(cert->chain, buffer)) {
- CRYPTO_BUFFER_free(buffer);
- return 0;
- }
-
- return 1;
- }
-
- cert->chain = new_leafless_chain();
- if (cert->chain == NULL ||
- !sk_CRYPTO_BUFFER_push(cert->chain, buffer)) {
- CRYPTO_BUFFER_free(buffer);
- sk_CRYPTO_BUFFER_free(cert->chain);
- cert->chain = NULL;
- return 0;
- }
-
- return 1;
- }
-
- static int ssl_cert_add0_chain_cert(CERT *cert, X509 *x509) {
- if (!ssl_cert_append_cert(cert, x509)) {
- return 0;
- }
-
- X509_free(cert->x509_stash);
- cert->x509_stash = x509;
- ssl_crypto_x509_cert_flush_cached_chain(cert);
- return 1;
- }
-
- static int ssl_cert_add1_chain_cert(CERT *cert, X509 *x509) {
- if (!ssl_cert_append_cert(cert, x509)) {
- return 0;
- }
-
- ssl_crypto_x509_cert_flush_cached_chain(cert);
- return 1;
- }
-
- int SSL_CTX_set0_chain(SSL_CTX *ctx, STACK_OF(X509) *chain) {
- check_ssl_ctx_x509_method(ctx);
- return ssl_cert_set0_chain(ctx->cert, chain);
- }
-
- int SSL_CTX_set1_chain(SSL_CTX *ctx, STACK_OF(X509) *chain) {
- check_ssl_ctx_x509_method(ctx);
- return ssl_cert_set1_chain(ctx->cert, chain);
- }
-
- int SSL_set0_chain(SSL *ssl, STACK_OF(X509) *chain) {
- check_ssl_x509_method(ssl);
- return ssl_cert_set0_chain(ssl->cert, chain);
- }
-
- int SSL_set1_chain(SSL *ssl, STACK_OF(X509) *chain) {
- check_ssl_x509_method(ssl);
- return ssl_cert_set1_chain(ssl->cert, chain);
- }
-
- int SSL_CTX_add0_chain_cert(SSL_CTX *ctx, X509 *x509) {
- check_ssl_ctx_x509_method(ctx);
- return ssl_cert_add0_chain_cert(ctx->cert, x509);
- }
-
- int SSL_CTX_add1_chain_cert(SSL_CTX *ctx, X509 *x509) {
- check_ssl_ctx_x509_method(ctx);
- return ssl_cert_add1_chain_cert(ctx->cert, x509);
- }
-
- int SSL_CTX_add_extra_chain_cert(SSL_CTX *ctx, X509 *x509) {
- check_ssl_ctx_x509_method(ctx);
- return SSL_CTX_add0_chain_cert(ctx, x509);
- }
-
- int SSL_add0_chain_cert(SSL *ssl, X509 *x509) {
- check_ssl_x509_method(ssl);
- return ssl_cert_add0_chain_cert(ssl->cert, x509);
- }
-
- int SSL_add1_chain_cert(SSL *ssl, X509 *x509) {
- check_ssl_x509_method(ssl);
- return ssl_cert_add1_chain_cert(ssl->cert, x509);
- }
-
- int SSL_CTX_clear_chain_certs(SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return SSL_CTX_set0_chain(ctx, NULL);
- }
-
- int SSL_CTX_clear_extra_chain_certs(SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- return SSL_CTX_clear_chain_certs(ctx);
- }
-
- int SSL_clear_chain_certs(SSL *ssl) {
- check_ssl_x509_method(ssl);
- return SSL_set0_chain(ssl, NULL);
- }
-
- /* ssl_cert_cache_chain_certs fills in |cert->x509_chain| from elements 1.. of
- * |cert->chain|. */
- static int ssl_cert_cache_chain_certs(CERT *cert) {
- assert(cert->x509_method);
-
- if (cert->x509_chain != NULL ||
- cert->chain == NULL ||
- sk_CRYPTO_BUFFER_num(cert->chain) < 2) {
- return 1;
- }
-
- STACK_OF(X509) *chain = sk_X509_new_null();
- if (chain == NULL) {
- return 0;
- }
-
- for (size_t i = 1; i < sk_CRYPTO_BUFFER_num(cert->chain); i++) {
- CRYPTO_BUFFER *buffer = sk_CRYPTO_BUFFER_value(cert->chain, i);
- X509 *x509 = X509_parse_from_buffer(buffer);
- if (x509 == NULL ||
- !sk_X509_push(chain, x509)) {
- X509_free(x509);
- goto err;
- }
- }
-
- cert->x509_chain = chain;
- return 1;
-
- err:
- sk_X509_pop_free(chain, X509_free);
- return 0;
- }
-
- int SSL_CTX_get0_chain_certs(const SSL_CTX *ctx, STACK_OF(X509) **out_chain) {
- check_ssl_ctx_x509_method(ctx);
- CRYPTO_MUTEX_lock_write((CRYPTO_MUTEX *) &ctx->lock);
- const int ret = ssl_cert_cache_chain_certs(ctx->cert);
- CRYPTO_MUTEX_unlock_write((CRYPTO_MUTEX *) &ctx->lock);
-
- if (!ret) {
- *out_chain = NULL;
- return 0;
- }
-
- *out_chain = ctx->cert->x509_chain;
- return 1;
- }
-
- int SSL_CTX_get_extra_chain_certs(const SSL_CTX *ctx,
- STACK_OF(X509) **out_chain) {
- return SSL_CTX_get0_chain_certs(ctx, out_chain);
- }
-
- int SSL_get0_chain_certs(const SSL *ssl, STACK_OF(X509) **out_chain) {
- check_ssl_x509_method(ssl);
- if (!ssl_cert_cache_chain_certs(ssl->cert)) {
- *out_chain = NULL;
- return 0;
- }
-
- *out_chain = ssl->cert->x509_chain;
- return 1;
- }
-
- static SSL_SESSION *ssl_session_new_with_crypto_x509(void) {
- return ssl_session_new(&ssl_crypto_x509_method);
- }
-
- SSL_SESSION *d2i_SSL_SESSION_bio(BIO *bio, SSL_SESSION **out) {
- return ASN1_d2i_bio_of(SSL_SESSION, ssl_session_new_with_crypto_x509,
- d2i_SSL_SESSION, bio, out);
- }
-
- int i2d_SSL_SESSION_bio(BIO *bio, const SSL_SESSION *session) {
- return ASN1_i2d_bio_of(SSL_SESSION, i2d_SSL_SESSION, bio, session);
- }
-
- IMPLEMENT_PEM_rw(SSL_SESSION, SSL_SESSION, PEM_STRING_SSL_SESSION, SSL_SESSION)
-
- SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const uint8_t **pp, long length) {
- if (length < 0) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_INTERNAL_ERROR);
- return NULL;
- }
-
- CBS cbs;
- CBS_init(&cbs, *pp, length);
-
- SSL_SESSION *ret = SSL_SESSION_parse(&cbs, &ssl_crypto_x509_method,
- NULL /* no buffer pool */);
- if (ret == NULL) {
- return NULL;
- }
-
- if (a) {
- SSL_SESSION_free(*a);
- *a = ret;
- }
- *pp = CBS_data(&cbs);
- return ret;
- }
-
- STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *list) {
- return sk_X509_NAME_deep_copy(list, X509_NAME_dup, X509_NAME_free);
- }
-
- static void set_client_CA_list(STACK_OF(CRYPTO_BUFFER) **ca_list,
- const STACK_OF(X509_NAME) *name_list,
- CRYPTO_BUFFER_POOL *pool) {
- STACK_OF(CRYPTO_BUFFER) *buffers = sk_CRYPTO_BUFFER_new_null();
- if (buffers == NULL) {
- return;
- }
-
- for (size_t i = 0; i < sk_X509_NAME_num(name_list); i++) {
- X509_NAME *name = sk_X509_NAME_value(name_list, i);
- uint8_t *outp = NULL;
- int len = i2d_X509_NAME(name, &outp);
- if (len < 0) {
- goto err;
- }
-
- CRYPTO_BUFFER *buffer = CRYPTO_BUFFER_new(outp, len, pool);
- OPENSSL_free(outp);
- if (buffer == NULL ||
- !sk_CRYPTO_BUFFER_push(buffers, buffer)) {
- CRYPTO_BUFFER_free(buffer);
- goto err;
- }
- }
-
- sk_CRYPTO_BUFFER_pop_free(*ca_list, CRYPTO_BUFFER_free);
- *ca_list = buffers;
- return;
-
- err:
- sk_CRYPTO_BUFFER_pop_free(buffers, CRYPTO_BUFFER_free);
- }
-
- void SSL_set_client_CA_list(SSL *ssl, STACK_OF(X509_NAME) *name_list) {
- check_ssl_x509_method(ssl);
- ssl->ctx->x509_method->ssl_flush_cached_client_CA(ssl);
- set_client_CA_list(&ssl->client_CA, name_list, ssl->ctx->pool);
- sk_X509_NAME_pop_free(name_list, X509_NAME_free);
- }
-
- void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) {
- check_ssl_ctx_x509_method(ctx);
- ctx->x509_method->ssl_ctx_flush_cached_client_CA(ctx);
- set_client_CA_list(&ctx->client_CA, name_list, ctx->pool);
- sk_X509_NAME_pop_free(name_list, X509_NAME_free);
- }
-
- static STACK_OF(X509_NAME) *
- buffer_names_to_x509(const STACK_OF(CRYPTO_BUFFER) *names,
- STACK_OF(X509_NAME) **cached) {
- if (names == NULL) {
- return NULL;
- }
-
- if (*cached != NULL) {
- return *cached;
- }
-
- STACK_OF(X509_NAME) *new_cache = sk_X509_NAME_new_null();
- if (new_cache == NULL) {
- OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- for (size_t i = 0; i < sk_CRYPTO_BUFFER_num(names); i++) {
- const CRYPTO_BUFFER *buffer = sk_CRYPTO_BUFFER_value(names, i);
- const uint8_t *inp = CRYPTO_BUFFER_data(buffer);
- X509_NAME *name = d2i_X509_NAME(NULL, &inp, CRYPTO_BUFFER_len(buffer));
- if (name == NULL ||
- inp != CRYPTO_BUFFER_data(buffer) + CRYPTO_BUFFER_len(buffer) ||
- !sk_X509_NAME_push(new_cache, name)) {
- X509_NAME_free(name);
- goto err;
- }
- }
-
- *cached = new_cache;
- return new_cache;
-
- err:
- sk_X509_NAME_pop_free(new_cache, X509_NAME_free);
- return NULL;
- }
-
- STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *ssl) {
- check_ssl_x509_method(ssl);
- /* For historical reasons, this function is used both to query configuration
- * state on a server as well as handshake state on a client. However, whether
- * |ssl| is a client or server is not known until explicitly configured with
- * |SSL_set_connect_state|. If |handshake_func| is NULL, |ssl| is in an
- * indeterminate mode and |ssl->server| is unset. */
- if (ssl->handshake_func != NULL && !ssl->server) {
- if (ssl->s3->hs != NULL) {
- return buffer_names_to_x509(ssl->s3->hs->ca_names,
- &ssl->s3->hs->cached_x509_ca_names);
- }
-
- return NULL;
- }
-
- if (ssl->client_CA != NULL) {
- return buffer_names_to_x509(
- ssl->client_CA, (STACK_OF(X509_NAME) **)&ssl->cached_x509_client_CA);
- }
- return buffer_names_to_x509(ssl->ctx->client_CA,
- &ssl->ctx->cached_x509_client_CA);
- }
-
- STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) {
- check_ssl_ctx_x509_method(ctx);
- CRYPTO_MUTEX_lock_write((CRYPTO_MUTEX *) &ctx->lock);
- STACK_OF(X509_NAME) *ret = buffer_names_to_x509(
- ctx->client_CA, (STACK_OF(X509_NAME) **)&ctx->cached_x509_client_CA);
- CRYPTO_MUTEX_unlock_write((CRYPTO_MUTEX *) &ctx->lock);
- return ret;
- }
-
- static int add_client_CA(STACK_OF(CRYPTO_BUFFER) **names, X509 *x509,
- CRYPTO_BUFFER_POOL *pool) {
- if (x509 == NULL) {
- return 0;
- }
-
- uint8_t *outp = NULL;
- int len = i2d_X509_NAME(X509_get_subject_name(x509), &outp);
- if (len < 0) {
- return 0;
- }
-
- CRYPTO_BUFFER *buffer = CRYPTO_BUFFER_new(outp, len, pool);
- OPENSSL_free(outp);
- if (buffer == NULL) {
- return 0;
- }
-
- int alloced = 0;
- if (*names == NULL) {
- *names = sk_CRYPTO_BUFFER_new_null();
- alloced = 1;
-
- if (*names == NULL) {
- CRYPTO_BUFFER_free(buffer);
- return 0;
- }
- }
-
- if (!sk_CRYPTO_BUFFER_push(*names, buffer)) {
- CRYPTO_BUFFER_free(buffer);
- if (alloced) {
- sk_CRYPTO_BUFFER_pop_free(*names, CRYPTO_BUFFER_free);
- *names = NULL;
- }
- return 0;
- }
-
- return 1;
- }
-
- int SSL_add_client_CA(SSL *ssl, X509 *x509) {
- check_ssl_x509_method(ssl);
- if (!add_client_CA(&ssl->client_CA, x509, ssl->ctx->pool)) {
- return 0;
- }
-
- ssl_crypto_x509_ssl_flush_cached_client_CA(ssl);
- return 1;
- }
-
- int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x509) {
- check_ssl_ctx_x509_method(ctx);
- if (!add_client_CA(&ctx->client_CA, x509, ctx->pool)) {
- return 0;
- }
-
- ssl_crypto_x509_ssl_ctx_flush_cached_client_CA(ctx);
- return 1;
- }
-
- static int do_client_cert_cb(SSL *ssl, void *arg) {
- if (ssl_has_certificate(ssl) || ssl->ctx->client_cert_cb == NULL) {
- return 1;
- }
-
- X509 *x509 = NULL;
- EVP_PKEY *pkey = NULL;
- int ret = ssl->ctx->client_cert_cb(ssl, &x509, &pkey);
- if (ret < 0) {
- return -1;
- }
-
- if (ret != 0) {
- if (!SSL_use_certificate(ssl, x509) ||
- !SSL_use_PrivateKey(ssl, pkey)) {
- return 0;
- }
- }
-
- X509_free(x509);
- EVP_PKEY_free(pkey);
- return 1;
- }
-
- void SSL_CTX_set_client_cert_cb(SSL_CTX *ctx, int (*cb)(SSL *ssl,
- X509 **out_x509,
- EVP_PKEY **out_pkey)) {
- check_ssl_ctx_x509_method(ctx);
- /* Emulate the old client certificate callback with the new one. */
- SSL_CTX_set_cert_cb(ctx, do_client_cert_cb, NULL);
- ctx->client_cert_cb = cb;
- }
-
- static int set_cert_store(X509_STORE **store_ptr, X509_STORE *new_store,
- int take_ref) {
- X509_STORE_free(*store_ptr);
- *store_ptr = new_store;
-
- if (new_store != NULL && take_ref) {
- X509_STORE_up_ref(new_store);
- }
-
- return 1;
- }
-
- int SSL_get_ex_data_X509_STORE_CTX_idx(void) {
- /* The ex_data index to go from |X509_STORE_CTX| to |SSL| always uses the
- * reserved app_data slot. Before ex_data was introduced, app_data was used.
- * Avoid breaking any software which assumes |X509_STORE_CTX_get_app_data|
- * works. */
- return 0;
- }
-
- int SSL_CTX_set0_verify_cert_store(SSL_CTX *ctx, X509_STORE *store) {
- check_ssl_ctx_x509_method(ctx);
- return set_cert_store(&ctx->cert->verify_store, store, 0);
- }
-
- int SSL_CTX_set1_verify_cert_store(SSL_CTX *ctx, X509_STORE *store) {
- check_ssl_ctx_x509_method(ctx);
- return set_cert_store(&ctx->cert->verify_store, store, 1);
- }
-
- int SSL_set0_verify_cert_store(SSL *ssl, X509_STORE *store) {
- check_ssl_x509_method(ssl);
- return set_cert_store(&ssl->cert->verify_store, store, 0);
- }
-
- int SSL_set1_verify_cert_store(SSL *ssl, X509_STORE *store) {
- check_ssl_x509_method(ssl);
- return set_cert_store(&ssl->cert->verify_store, store, 1);
- }
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