--- /dev/null
+/* 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.] */
+
+#include <openssl/ssl.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl/buf.h>
+
+#include "../crypto/internal.h"
+#include "internal.h"
+
+
+namespace bssl {
+
+static void ssl3_on_handshake_complete(SSL *ssl) {
+ // The handshake should have released its final message.
+ assert(!ssl->s3->has_message);
+
+ // During the handshake, |hs_buf| is retained. Release if it there is no
+ // excess in it. There may be excess left if there server sent Finished and
+ // HelloRequest in the same record.
+ //
+ // TODO(davidben): SChannel does not support this. Reject this case.
+ if (ssl->s3->hs_buf && ssl->s3->hs_buf->length == 0) {
+ ssl->s3->hs_buf.reset();
+ }
+}
+
+static bool ssl3_set_read_state(SSL *ssl, UniquePtr<SSLAEADContext> aead_ctx) {
+ // Cipher changes are forbidden if the current epoch has leftover data.
+ if (tls_has_unprocessed_handshake_data(ssl)) {
+ OPENSSL_PUT_ERROR(SSL, SSL_R_BUFFERED_MESSAGES_ON_CIPHER_CHANGE);
+ ssl_send_alert(ssl, SSL3_AL_FATAL, SSL_AD_UNEXPECTED_MESSAGE);
+ return false;
+ }
+
+ OPENSSL_memset(ssl->s3->read_sequence, 0, sizeof(ssl->s3->read_sequence));
+ ssl->s3->aead_read_ctx = std::move(aead_ctx);
+ return true;
+}
+
+static bool ssl3_set_write_state(SSL *ssl, UniquePtr<SSLAEADContext> aead_ctx) {
+ OPENSSL_memset(ssl->s3->write_sequence, 0, sizeof(ssl->s3->write_sequence));
+ ssl->s3->aead_write_ctx = std::move(aead_ctx);
+ return true;
+}
+
+static const SSL_PROTOCOL_METHOD kTLSProtocolMethod = {
+ false /* is_dtls */,
+ ssl3_new,
+ ssl3_free,
+ ssl3_get_message,
+ ssl3_next_message,
+ ssl3_open_handshake,
+ ssl3_open_change_cipher_spec,
+ ssl3_open_app_data,
+ ssl3_write_app_data,
+ ssl3_dispatch_alert,
+ ssl3_init_message,
+ ssl3_finish_message,
+ ssl3_add_message,
+ ssl3_add_change_cipher_spec,
+ ssl3_add_alert,
+ ssl3_flush_flight,
+ ssl3_on_handshake_complete,
+ ssl3_set_read_state,
+ ssl3_set_write_state,
+};
+
+static int ssl_noop_x509_check_client_CA_names(
+ STACK_OF(CRYPTO_BUFFER) *names) {
+ return 1;
+}
+
+static void ssl_noop_x509_clear(CERT *cert) {}
+static void ssl_noop_x509_free(CERT *cert) {}
+static void ssl_noop_x509_dup(CERT *new_cert, const CERT *cert) {}
+static void ssl_noop_x509_flush_cached_leaf(CERT *cert) {}
+static void ssl_noop_x509_flush_cached_chain(CERT *cert) {}
+static int ssl_noop_x509_session_cache_objects(SSL_SESSION *sess) {
+ return 1;
+}
+static int ssl_noop_x509_session_dup(SSL_SESSION *new_session,
+ const SSL_SESSION *session) {
+ return 1;
+}
+static void ssl_noop_x509_session_clear(SSL_SESSION *session) {}
+static int ssl_noop_x509_session_verify_cert_chain(SSL_SESSION *session,
+ SSL *ssl,
+ uint8_t *out_alert) {
+ return 0;
+}
+
+static void ssl_noop_x509_hs_flush_cached_ca_names(SSL_HANDSHAKE *hs) {}
+static int ssl_noop_x509_ssl_new(SSL *ctx) { return 1; }
+static void ssl_noop_x509_ssl_free(SSL *ctx) { }
+static void ssl_noop_x509_ssl_flush_cached_client_CA(SSL *ssl) {}
+static int ssl_noop_x509_ssl_auto_chain_if_needed(SSL *ssl) { return 1; }
+static int ssl_noop_x509_ssl_ctx_new(SSL_CTX *ctx) { return 1; }
+static void ssl_noop_x509_ssl_ctx_free(SSL_CTX *ctx) { }
+static void ssl_noop_x509_ssl_ctx_flush_cached_client_CA(SSL_CTX *ctx) {}
+
+const SSL_X509_METHOD ssl_noop_x509_method = {
+ ssl_noop_x509_check_client_CA_names,
+ ssl_noop_x509_clear,
+ ssl_noop_x509_free,
+ ssl_noop_x509_dup,
+ ssl_noop_x509_flush_cached_chain,
+ ssl_noop_x509_flush_cached_leaf,
+ ssl_noop_x509_session_cache_objects,
+ ssl_noop_x509_session_dup,
+ ssl_noop_x509_session_clear,
+ ssl_noop_x509_session_verify_cert_chain,
+ ssl_noop_x509_hs_flush_cached_ca_names,
+ ssl_noop_x509_ssl_new,
+ ssl_noop_x509_ssl_free,
+ ssl_noop_x509_ssl_flush_cached_client_CA,
+ ssl_noop_x509_ssl_auto_chain_if_needed,
+ ssl_noop_x509_ssl_ctx_new,
+ ssl_noop_x509_ssl_ctx_free,
+ ssl_noop_x509_ssl_ctx_flush_cached_client_CA,
+};
+
+} // namespace bssl
+
+using namespace bssl;
+
+const SSL_METHOD *TLS_method(void) {
+ static const SSL_METHOD kMethod = {
+ 0,
+ &kTLSProtocolMethod,
+ &ssl_crypto_x509_method,
+ };
+ return &kMethod;
+}
+
+const SSL_METHOD *SSLv23_method(void) {
+ return TLS_method();
+}
+
+const SSL_METHOD *TLS_with_buffers_method(void) {
+ static const SSL_METHOD kMethod = {
+ 0,
+ &kTLSProtocolMethod,
+ &ssl_noop_x509_method,
+ };
+ return &kMethod;
+}
+
+// Legacy version-locked methods.
+
+const SSL_METHOD *TLSv1_2_method(void) {
+ static const SSL_METHOD kMethod = {
+ TLS1_2_VERSION,
+ &kTLSProtocolMethod,
+ &ssl_crypto_x509_method,
+ };
+ return &kMethod;
+}
+
+const SSL_METHOD *TLSv1_1_method(void) {
+ static const SSL_METHOD kMethod = {
+ TLS1_1_VERSION,
+ &kTLSProtocolMethod,
+ &ssl_crypto_x509_method,
+ };
+ return &kMethod;
+}
+
+const SSL_METHOD *TLSv1_method(void) {
+ static const SSL_METHOD kMethod = {
+ TLS1_VERSION,
+ &kTLSProtocolMethod,
+ &ssl_crypto_x509_method,
+ };
+ return &kMethod;
+}
+
+// Legacy side-specific methods.
+
+const SSL_METHOD *TLSv1_2_server_method(void) {
+ return TLSv1_2_method();
+}
+
+const SSL_METHOD *TLSv1_1_server_method(void) {
+ return TLSv1_1_method();
+}
+
+const SSL_METHOD *TLSv1_server_method(void) {
+ return TLSv1_method();
+}
+
+const SSL_METHOD *TLSv1_2_client_method(void) {
+ return TLSv1_2_method();
+}
+
+const SSL_METHOD *TLSv1_1_client_method(void) {
+ return TLSv1_1_method();
+}
+
+const SSL_METHOD *TLSv1_client_method(void) {
+ return TLSv1_method();
+}
+
+const SSL_METHOD *SSLv23_server_method(void) {
+ return SSLv23_method();
+}
+
+const SSL_METHOD *SSLv23_client_method(void) {
+ return SSLv23_method();
+}
+
+const SSL_METHOD *TLS_server_method(void) {
+ return TLS_method();
+}
+
+const SSL_METHOD *TLS_client_method(void) {
+ return TLS_method();
+}
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