| /* 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" |
| |
| |
| namespace bssl { |
| |
| // 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_to_buffer returns a |CRYPTO_BUFFER| that contains the serialised |
| // contents of |x509|. |
| static UniquePtr<CRYPTO_BUFFER> x509_to_buffer(X509 *x509) { |
| uint8_t *buf = NULL; |
| int cert_len = i2d_X509(x509, &buf); |
| if (cert_len <= 0) { |
| return 0; |
| } |
| |
| UniquePtr<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) { |
| UniquePtr<STACK_OF(CRYPTO_BUFFER)> new_chain; |
| |
| if (cert->chain != NULL) { |
| new_chain.reset(sk_CRYPTO_BUFFER_new_null()); |
| if (!new_chain) { |
| return 0; |
| } |
| |
| CRYPTO_BUFFER *leaf = sk_CRYPTO_BUFFER_value(cert->chain, 0); |
| if (!sk_CRYPTO_BUFFER_push(new_chain.get(), leaf)) { |
| return 0; |
| } |
| // |leaf| might be NULL if it's a “leafless” chain. |
| if (leaf != NULL) { |
| CRYPTO_BUFFER_up_ref(leaf); |
| } |
| } |
| |
| for (X509 *x509 : chain) { |
| if (!new_chain) { |
| new_chain.reset(new_leafless_chain()); |
| if (!new_chain) { |
| return 0; |
| } |
| } |
| |
| UniquePtr<CRYPTO_BUFFER> buffer = x509_to_buffer(x509); |
| if (!buffer || |
| !PushToStack(new_chain.get(), std::move(buffer))) { |
| return 0; |
| } |
| } |
| |
| sk_CRYPTO_BUFFER_pop_free(cert->chain, CRYPTO_BUFFER_free); |
| cert->chain = new_chain.release(); |
| |
| return 1; |
| } |
| |
| 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 (const CRYPTO_BUFFER *buffer : names) { |
| 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) { |
| bssl::UniquePtr<STACK_OF(X509)> chain; |
| if (sk_CRYPTO_BUFFER_num(sess->certs) > 0) { |
| chain.reset(sk_X509_new_null()); |
| if (!chain) { |
| OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| } |
| |
| X509 *leaf = nullptr; |
| for (CRYPTO_BUFFER *cert : sess->certs) { |
| UniquePtr<X509> x509(X509_parse_from_buffer(cert)); |
| if (!x509) { |
| OPENSSL_PUT_ERROR(SSL, SSL_R_DECODE_ERROR); |
| return 0; |
| } |
| if (leaf == nullptr) { |
| leaf = x509.get(); |
| } |
| if (!PushToStack(chain.get(), std::move(x509))) { |
| OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| } |
| |
| sk_X509_pop_free(sess->x509_chain, X509_free); |
| sess->x509_chain = chain.release(); |
| 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; |
| } |
| |
| 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, |
| uint8_t *out_alert) { |
| *out_alert = SSL_AD_INTERNAL_ERROR; |
| 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); |
| ScopedX509_STORE_CTX ctx; |
| if (!X509_STORE_CTX_init(ctx.get(), verify_store, leaf, cert_chain)) { |
| OPENSSL_PUT_ERROR(SSL, ERR_R_X509_LIB); |
| return 0; |
| } |
| if (!X509_STORE_CTX_set_ex_data(ctx.get(), |
| SSL_get_ex_data_X509_STORE_CTX_idx(), ssl)) { |
| return 0; |
| } |
| |
| // 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.get(), |
| 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.get()), ssl->param); |
| |
| if (ssl->verify_callback) { |
| X509_STORE_CTX_set_verify_cb(ctx.get(), ssl->verify_callback); |
| } |
| |
| int verify_ret; |
| if (ssl->ctx->app_verify_callback != NULL) { |
| verify_ret = |
| ssl->ctx->app_verify_callback(ctx.get(), ssl->ctx->app_verify_arg); |
| } else { |
| verify_ret = X509_verify_cert(ctx.get()); |
| } |
| |
| 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) { |
| *out_alert = ssl_verify_alarm_type(ctx->error); |
| return 0; |
| } |
| |
| ERR_clear_error(); |
| return 1; |
| } |
| |
| 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; |
| } |
| |
| UniquePtr<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; |
| } |
| |
| ScopedX509_STORE_CTX ctx; |
| if (!X509_STORE_CTX_init(ctx.get(), ssl->ctx->cert_store, leaf.get(), NULL)) { |
| OPENSSL_PUT_ERROR(SSL, ERR_R_X509_LIB); |
| return 0; |
| } |
| |
| // Attempt to build a chain, ignoring the result. |
| X509_verify_cert(ctx.get()); |
| ERR_clear_error(); |
| |
| // Remove the leaf from the generated chain. |
| X509_free(sk_X509_shift(ctx->chain)); |
| |
| if (!ssl_cert_set_chain(ssl->cert, ctx->chain)) { |
| 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, |
| }; |
| |
| } // namespace bssl |
| |
| using namespace bssl; |
| |
| 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; |
| } |
| |
| static int ssl_use_certificate(CERT *cert, X509 *x) { |
| if (x == NULL) { |
| OPENSSL_PUT_ERROR(SSL, ERR_R_PASSED_NULL_PARAMETER); |
| return 0; |
| } |
| |
| UniquePtr<CRYPTO_BUFFER> buffer = x509_to_buffer(x); |
| if (!buffer) { |
| return 0; |
| } |
| |
| return ssl_set_cert(cert, std::move(buffer)); |
| } |
| |
| 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); |
| MutexWriteLock lock(const_cast<CRYPTO_MUTEX*>(&ctx->lock)); |
| return ssl_cert_get0_leaf(ctx->cert); |
| } |
| |
| 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); |
| |
| UniquePtr<CRYPTO_BUFFER> buffer = x509_to_buffer(x509); |
| if (!buffer) { |
| return 0; |
| } |
| |
| if (cert->chain != NULL) { |
| return PushToStack(cert->chain, std::move(buffer)); |
| } |
| |
| cert->chain = new_leafless_chain(); |
| if (cert->chain == NULL || |
| !PushToStack(cert->chain, std::move(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; |
| } |
| |
| UniquePtr<STACK_OF(X509)> chain(sk_X509_new_null()); |
| if (!chain) { |
| 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); |
| UniquePtr<X509> x509(X509_parse_from_buffer(buffer)); |
| if (!x509 || |
| !PushToStack(chain.get(), std::move(x509))) { |
| return 0; |
| } |
| } |
| |
| cert->x509_chain = chain.release(); |
| return 1; |
| } |
| |
| int SSL_CTX_get0_chain_certs(const SSL_CTX *ctx, STACK_OF(X509) **out_chain) { |
| check_ssl_ctx_x509_method(ctx); |
| MutexWriteLock lock(const_cast<CRYPTO_MUTEX*>(&ctx->lock)); |
| if (!ssl_cert_cache_chain_certs(ctx->cert)) { |
| *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).release(); |
| } |
| |
| 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); |
| |
| UniquePtr<SSL_SESSION> ret = SSL_SESSION_parse(&cbs, &ssl_crypto_x509_method, |
| NULL /* no buffer pool */); |
| if (!ret) { |
| return NULL; |
| } |
| |
| if (a) { |
| SSL_SESSION_free(*a); |
| *a = ret.get(); |
| } |
| *pp = CBS_data(&cbs); |
| return ret.release(); |
| } |
| |
| 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) { |
| UniquePtr<STACK_OF(CRYPTO_BUFFER)> buffers(sk_CRYPTO_BUFFER_new_null()); |
| if (!buffers) { |
| return; |
| } |
| |
| for (X509_NAME *name : name_list) { |
| uint8_t *outp = NULL; |
| int len = i2d_X509_NAME(name, &outp); |
| if (len < 0) { |
| return; |
| } |
| |
| UniquePtr<CRYPTO_BUFFER> buffer(CRYPTO_BUFFER_new(outp, len, pool)); |
| OPENSSL_free(outp); |
| if (!buffer || |
| !PushToStack(buffers.get(), std::move(buffer))) { |
| return; |
| } |
| } |
| |
| sk_CRYPTO_BUFFER_pop_free(*ca_list, CRYPTO_BUFFER_free); |
| *ca_list = buffers.release(); |
| } |
| |
| 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; |
| } |
| |
| UniquePtr<STACK_OF(X509_NAME)> new_cache(sk_X509_NAME_new_null()); |
| if (!new_cache) { |
| OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| |
| for (const CRYPTO_BUFFER *buffer : names) { |
| const uint8_t *inp = CRYPTO_BUFFER_data(buffer); |
| UniquePtr<X509_NAME> name( |
| d2i_X509_NAME(nullptr, &inp, CRYPTO_BUFFER_len(buffer))); |
| if (!name || |
| inp != CRYPTO_BUFFER_data(buffer) + CRYPTO_BUFFER_len(buffer) || |
| !PushToStack(new_cache.get(), std::move(name))) { |
| return NULL; |
| } |
| } |
| |
| *cached = new_cache.release(); |
| return *cached; |
| } |
| |
| 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 |do_handshake| is NULL, |ssl| is in an |
| // indeterminate mode and |ssl->server| is unset. |
| if (ssl->do_handshake != NULL && !ssl->server) { |
| if (ssl->s3->hs != NULL) { |
| return buffer_names_to_x509(ssl->s3->hs->ca_names.get(), |
| &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 SSL_CTX_get_client_CA_list(ssl->ctx); |
| } |
| |
| STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) { |
| check_ssl_ctx_x509_method(ctx); |
| // This is a logically const operation that may be called on multiple threads, |
| // so it needs to lock around updating |cached_x509_client_CA|. |
| MutexWriteLock lock(const_cast<CRYPTO_MUTEX *>(&ctx->lock)); |
| return buffer_names_to_x509( |
| ctx->client_CA, |
| const_cast<STACK_OF(X509_NAME) **>(&ctx->cached_x509_client_CA)); |
| } |
| |
| 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; |
| } |
| |
| UniquePtr<CRYPTO_BUFFER> buffer(CRYPTO_BUFFER_new(outp, len, pool)); |
| OPENSSL_free(outp); |
| if (!buffer) { |
| return 0; |
| } |
| |
| int alloced = 0; |
| if (*names == NULL) { |
| *names = sk_CRYPTO_BUFFER_new_null(); |
| alloced = 1; |
| |
| if (*names == NULL) { |
| return 0; |
| } |
| } |
| |
| if (!PushToStack(*names, std::move(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; |
| } |
| UniquePtr<X509> free_x509(x509); |
| UniquePtr<EVP_PKEY> free_pkey(pkey); |
| |
| if (ret != 0) { |
| if (!SSL_use_certificate(ssl, x509) || |
| !SSL_use_PrivateKey(ssl, pkey)) { |
| return 0; |
| } |
| } |
| |
| 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); |
| } |