|
- /* 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.
- */
-
- #ifndef OPENSSL_HEADER_SSL_H
- #define OPENSSL_HEADER_SSL_H
-
- #include <openssl/base.h>
-
- #include <openssl/bio.h>
- #include <openssl/buf.h>
- #include <openssl/hmac.h>
- #include <openssl/lhash.h>
- #include <openssl/pem.h>
- #include <openssl/ssl3.h>
- #include <openssl/thread.h>
- #include <openssl/tls1.h>
- #include <openssl/x509.h>
-
- #if !defined(OPENSSL_WINDOWS)
- #include <sys/time.h>
- #endif
-
- /* Forward-declare struct timeval. On Windows, it is defined in winsock2.h and
- * Windows headers define too many macros to be included in public headers.
- * However, only a forward declaration is needed. */
- struct timeval;
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
-
- /* SSL implementation. */
-
-
- /* SSL contexts.
- *
- * |SSL_CTX| objects manage shared state and configuration between multiple TLS
- * or DTLS connections. Whether the connections are TLS or DTLS is selected by
- * an |SSL_METHOD| on creation.
- *
- * |SSL_CTX| are reference-counted and may be shared by connections across
- * multiple threads. Once shared, functions which change the |SSL_CTX|'s
- * configuration may not be used. */
-
- /* TLS_method is the |SSL_METHOD| used for TLS (and SSLv3) connections. */
- OPENSSL_EXPORT const SSL_METHOD *TLS_method(void);
-
- /* DTLS_method is the |SSL_METHOD| used for DTLS connections. */
- OPENSSL_EXPORT const SSL_METHOD *DTLS_method(void);
-
- /* SSL_CTX_new returns a newly-allocated |SSL_CTX| with default settings or NULL
- * on error. */
- OPENSSL_EXPORT SSL_CTX *SSL_CTX_new(const SSL_METHOD *method);
-
- /* SSL_CTX_up_ref increments the reference count of |ctx|. It returns one. */
- OPENSSL_EXPORT int SSL_CTX_up_ref(SSL_CTX *ctx);
-
- /* SSL_CTX_free releases memory associated with |ctx|. */
- OPENSSL_EXPORT void SSL_CTX_free(SSL_CTX *ctx);
-
-
- /* SSL connections.
- *
- * An |SSL| object represents a single TLS or DTLS connection. Although the
- * shared |SSL_CTX| is thread-safe, an |SSL| is not thread-safe and may only be
- * used on one thread at a time. */
-
- /* SSL_new returns a newly-allocated |SSL| using |ctx| or NULL on error. The new
- * connection inherits settings from |ctx| at the time of creation. Settings may
- * also be individually configured on the connection.
- *
- * On creation, an |SSL| is not configured to be either a client or server. Call
- * |SSL_set_connect_state| or |SSL_set_accept_state| to set this. */
- OPENSSL_EXPORT SSL *SSL_new(SSL_CTX *ctx);
-
- /* SSL_free releases memory associated with |ssl|. */
- OPENSSL_EXPORT void SSL_free(SSL *ssl);
-
- /* SSL_get_SSL_CTX returns the |SSL_CTX| associated with |ssl|. If
- * |SSL_set_SSL_CTX| is called, it returns the new |SSL_CTX|, not the initial
- * one. */
- OPENSSL_EXPORT SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl);
-
- /* SSL_set_connect_state configures |ssl| to be a client. */
- OPENSSL_EXPORT void SSL_set_connect_state(SSL *ssl);
-
- /* SSL_set_accept_state configures |ssl| to be a server. */
- OPENSSL_EXPORT void SSL_set_accept_state(SSL *ssl);
-
- /* SSL_is_server returns one if |ssl| is configured as a server and zero
- * otherwise. */
- OPENSSL_EXPORT int SSL_is_server(const SSL *ssl);
-
- /* SSL_is_dtls returns one if |ssl| is a DTLS connection and zero otherwise. */
- OPENSSL_EXPORT int SSL_is_dtls(const SSL *ssl);
-
- /* SSL_set_bio configures |ssl| to read from |rbio| and write to |wbio|. |ssl|
- * takes ownership of the two |BIO|s. If |rbio| and |wbio| are the same, |ssl|
- * only takes ownership of one reference.
- *
- * In DTLS, if |rbio| is blocking, it must handle
- * |BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT| control requests to set read timeouts.
- *
- * If |rbio| is the same as the currently configured |BIO| for reading, that
- * side is left untouched and is not freed.
- *
- * If |wbio| is the same as the currently configured |BIO| for writing AND |ssl|
- * is not currently configured to read from and write to the same |BIO|, that
- * side is left untouched and is not freed. This asymmetry is present for
- * historical reasons.
- *
- * Due to the very complex historical behavior of this function, calling this
- * function if |ssl| already has |BIO|s configured is deprecated. Prefer
- * |SSL_set0_rbio| and |SSL_set0_wbio| instead. */
- OPENSSL_EXPORT void SSL_set_bio(SSL *ssl, BIO *rbio, BIO *wbio);
-
- /* SSL_set0_rbio configures |ssl| to write to |rbio|. It takes ownership of
- * |rbio|.
- *
- * Note that, although this function and |SSL_set0_wbio| may be called on the
- * same |BIO|, each call takes a reference. Use |BIO_up_ref| to balance this. */
- OPENSSL_EXPORT void SSL_set0_rbio(SSL *ssl, BIO *rbio);
-
- /* SSL_set0_wbio configures |ssl| to write to |wbio|. It takes ownership of
- * |wbio|.
- *
- * Note that, although this function and |SSL_set0_rbio| may be called on the
- * same |BIO|, each call takes a reference. Use |BIO_up_ref| to balance this. */
- OPENSSL_EXPORT void SSL_set0_wbio(SSL *ssl, BIO *wbio);
-
- /* SSL_get_rbio returns the |BIO| that |ssl| reads from. */
- OPENSSL_EXPORT BIO *SSL_get_rbio(const SSL *ssl);
-
- /* SSL_get_wbio returns the |BIO| that |ssl| writes to. */
- OPENSSL_EXPORT BIO *SSL_get_wbio(const SSL *ssl);
-
- /* SSL_get_fd calls |SSL_get_rfd|. */
- OPENSSL_EXPORT int SSL_get_fd(const SSL *ssl);
-
- /* SSL_get_rfd returns the file descriptor that |ssl| is configured to read
- * from. If |ssl|'s read |BIO| is not configured or doesn't wrap a file
- * descriptor then it returns -1.
- *
- * Note: On Windows, this may return either a file descriptor or a socket (cast
- * to int), depending on whether |ssl| was configured with a file descriptor or
- * socket |BIO|. */
- OPENSSL_EXPORT int SSL_get_rfd(const SSL *ssl);
-
- /* SSL_get_wfd returns the file descriptor that |ssl| is configured to write
- * to. If |ssl|'s write |BIO| is not configured or doesn't wrap a file
- * descriptor then it returns -1.
- *
- * Note: On Windows, this may return either a file descriptor or a socket (cast
- * to int), depending on whether |ssl| was configured with a file descriptor or
- * socket |BIO|. */
- OPENSSL_EXPORT int SSL_get_wfd(const SSL *ssl);
-
- /* SSL_set_fd configures |ssl| to read from and write to |fd|. It returns one
- * on success and zero on allocation error. The caller retains ownership of
- * |fd|.
- *
- * On Windows, |fd| is cast to a |SOCKET| and used with Winsock APIs. */
- OPENSSL_EXPORT int SSL_set_fd(SSL *ssl, int fd);
-
- /* SSL_set_rfd configures |ssl| to read from |fd|. It returns one on success and
- * zero on allocation error. The caller retains ownership of |fd|.
- *
- * On Windows, |fd| is cast to a |SOCKET| and used with Winsock APIs. */
- OPENSSL_EXPORT int SSL_set_rfd(SSL *ssl, int fd);
-
- /* SSL_set_wfd configures |ssl| to write to |fd|. It returns one on success and
- * zero on allocation error. The caller retains ownership of |fd|.
- *
- * On Windows, |fd| is cast to a |SOCKET| and used with Winsock APIs. */
- OPENSSL_EXPORT int SSL_set_wfd(SSL *ssl, int fd);
-
- /* SSL_do_handshake continues the current handshake. If there is none or the
- * handshake has completed or False Started, it returns one. Otherwise, it
- * returns <= 0. The caller should pass the value into |SSL_get_error| to
- * determine how to proceed.
- *
- * In DTLS, if the read |BIO| is non-blocking, the caller must drive
- * retransmissions. Whenever |SSL_get_error| signals |SSL_ERROR_WANT_READ|, use
- * |DTLSv1_get_timeout| to determine the current timeout. If it expires before
- * the next retry, call |DTLSv1_handle_timeout|. Note that DTLS handshake
- * retransmissions use fresh sequence numbers, so it is not sufficient to replay
- * packets at the transport.
- *
- * TODO(davidben): Ensure 0 is only returned on transport EOF.
- * https://crbug.com/466303. */
- OPENSSL_EXPORT int SSL_do_handshake(SSL *ssl);
-
- /* SSL_connect configures |ssl| as a client, if unconfigured, and calls
- * |SSL_do_handshake|. */
- OPENSSL_EXPORT int SSL_connect(SSL *ssl);
-
- /* SSL_accept configures |ssl| as a server, if unconfigured, and calls
- * |SSL_do_handshake|. */
- OPENSSL_EXPORT int SSL_accept(SSL *ssl);
-
- /* SSL_read reads up to |num| bytes from |ssl| into |buf|. It implicitly runs
- * any pending handshakes, including renegotiations when enabled. On success, it
- * returns the number of bytes read. Otherwise, it returns <= 0. The caller
- * should pass the value into |SSL_get_error| to determine how to proceed.
- *
- * TODO(davidben): Ensure 0 is only returned on transport EOF.
- * https://crbug.com/466303. */
- OPENSSL_EXPORT int SSL_read(SSL *ssl, void *buf, int num);
-
- /* SSL_peek behaves like |SSL_read| but does not consume any bytes returned. */
- OPENSSL_EXPORT int SSL_peek(SSL *ssl, void *buf, int num);
-
- /* SSL_pending returns the number of bytes available in |ssl|. It does not read
- * from the transport. */
- OPENSSL_EXPORT int SSL_pending(const SSL *ssl);
-
- /* SSL_write writes up to |num| bytes from |buf| into |ssl|. It implicitly runs
- * any pending handshakes, including renegotiations when enabled. On success, it
- * returns the number of bytes read. Otherwise, it returns <= 0. The caller
- * should pass the value into |SSL_get_error| to determine how to proceed.
- *
- * In TLS, a non-blocking |SSL_write| differs from non-blocking |write| in that
- * a failed |SSL_write| still commits to the data passed in. When retrying, the
- * caller must supply the original write buffer (or a larger one containing the
- * original as a prefix). By default, retries will fail if they also do not
- * reuse the same |buf| pointer. This may be relaxed with
- * |SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER|, but the buffer contents still must be
- * unchanged.
- *
- * By default, in TLS, |SSL_write| will not return success until all |num| bytes
- * are written. This may be relaxed with |SSL_MODE_ENABLE_PARTIAL_WRITE|. It
- * allows |SSL_write| to complete with a partial result when only part of the
- * input was written in a single record.
- *
- * In DTLS, neither |SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER| and
- * |SSL_MODE_ENABLE_PARTIAL_WRITE| do anything. The caller may retry with a
- * different buffer freely. A single call to |SSL_write| only ever writes a
- * single record in a single packet, so |num| must be at most
- * |SSL3_RT_MAX_PLAIN_LENGTH|.
- *
- * TODO(davidben): Ensure 0 is only returned on transport EOF.
- * https://crbug.com/466303. */
- OPENSSL_EXPORT int SSL_write(SSL *ssl, const void *buf, int num);
-
- /* SSL_shutdown shuts down |ssl|. On success, it completes in two stages. First,
- * it returns 0 if |ssl| completed uni-directional shutdown; close_notify has
- * been sent, but the peer's close_notify has not been received. Most callers
- * may stop at this point. For bi-directional shutdown, call |SSL_shutdown|
- * again. It returns 1 if close_notify has been both sent and received.
- *
- * If the peer's close_notify arrived first, the first stage is skipped.
- * |SSL_shutdown| will return 1 once close_notify is sent and skip 0. Callers
- * only interested in uni-directional shutdown must therefore allow for the
- * first stage returning either 0 or 1.
- *
- * |SSL_shutdown| returns -1 on failure. The caller should pass the return value
- * into |SSL_get_error| to determine how to proceed. If the underlying |BIO| is
- * non-blocking, both stages may require retry. */
- OPENSSL_EXPORT int SSL_shutdown(SSL *ssl);
-
- /* SSL_CTX_set_quiet_shutdown sets quiet shutdown on |ctx| to |mode|. If
- * enabled, |SSL_shutdown| will not send a close_notify alert or wait for one
- * from the peer. It will instead synchronously return one. */
- OPENSSL_EXPORT void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
-
- /* SSL_CTX_get_quiet_shutdown returns whether quiet shutdown is enabled for
- * |ctx|. */
- OPENSSL_EXPORT int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
-
- /* SSL_set_quiet_shutdown sets quiet shutdown on |ssl| to |mode|. If enabled,
- * |SSL_shutdown| will not send a close_notify alert or wait for one from the
- * peer. It will instead synchronously return one. */
- OPENSSL_EXPORT void SSL_set_quiet_shutdown(SSL *ssl, int mode);
-
- /* SSL_get_quiet_shutdown returns whether quiet shutdown is enabled for
- * |ssl|. */
- OPENSSL_EXPORT int SSL_get_quiet_shutdown(const SSL *ssl);
-
- /* SSL_get_error returns a |SSL_ERROR_*| value for the most recent operation on
- * |ssl|. It should be called after an operation failed to determine whether the
- * error was fatal and, if not, when to retry. */
- OPENSSL_EXPORT int SSL_get_error(const SSL *ssl, int ret_code);
-
- /* SSL_ERROR_NONE indicates the operation succeeded. */
- #define SSL_ERROR_NONE 0
-
- /* SSL_ERROR_SSL indicates the operation failed within the library. The caller
- * may inspect the error queue for more information. */
- #define SSL_ERROR_SSL 1
-
- /* SSL_ERROR_WANT_READ indicates the operation failed attempting to read from
- * the transport. The caller may retry the operation when the transport is ready
- * for reading.
- *
- * If signaled by a DTLS handshake, the caller must also call
- * |DTLSv1_get_timeout| and |DTLSv1_handle_timeout| as appropriate. See
- * |SSL_do_handshake|. */
- #define SSL_ERROR_WANT_READ 2
-
- /* SSL_ERROR_WANT_WRITE indicates the operation failed attempting to write to
- * the transport. The caller may retry the operation when the transport is ready
- * for writing. */
- #define SSL_ERROR_WANT_WRITE 3
-
- /* SSL_ERROR_WANT_X509_LOOKUP indicates the operation failed in calling the
- * |cert_cb| or |client_cert_cb|. The caller may retry the operation when the
- * callback is ready to return a certificate or one has been configured
- * externally.
- *
- * See also |SSL_CTX_set_cert_cb| and |SSL_CTX_set_client_cert_cb|. */
- #define SSL_ERROR_WANT_X509_LOOKUP 4
-
- /* SSL_ERROR_SYSCALL indicates the operation failed externally to the library.
- * The caller should consult the system-specific error mechanism. This is
- * typically |errno| but may be something custom if using a custom |BIO|. It
- * may also be signaled if the transport returned EOF, in which case the
- * operation's return value will be zero. */
- #define SSL_ERROR_SYSCALL 5
-
- /* SSL_ERROR_ZERO_RETURN indicates the operation failed because the connection
- * was cleanly shut down with a close_notify alert. */
- #define SSL_ERROR_ZERO_RETURN 6
-
- /* SSL_ERROR_WANT_CONNECT indicates the operation failed attempting to connect
- * the transport (the |BIO| signaled |BIO_RR_CONNECT|). The caller may retry the
- * operation when the transport is ready. */
- #define SSL_ERROR_WANT_CONNECT 7
-
- /* SSL_ERROR_WANT_ACCEPT indicates the operation failed attempting to accept a
- * connection from the transport (the |BIO| signaled |BIO_RR_ACCEPT|). The
- * caller may retry the operation when the transport is ready.
- *
- * TODO(davidben): Remove this. It's used by accept BIOs which are bizarre. */
- #define SSL_ERROR_WANT_ACCEPT 8
-
- /* SSL_ERROR_WANT_CHANNEL_ID_LOOKUP indicates the operation failed looking up
- * the Channel ID key. The caller may retry the operation when |channel_id_cb|
- * is ready to return a key or one has been configured with
- * |SSL_set1_tls_channel_id|.
- *
- * See also |SSL_CTX_set_channel_id_cb|. */
- #define SSL_ERROR_WANT_CHANNEL_ID_LOOKUP 9
-
- /* SSL_ERROR_PENDING_SESSION indicates the operation failed because the session
- * lookup callback indicated the session was unavailable. The caller may retry
- * the operation when lookup has completed.
- *
- * See also |SSL_CTX_sess_set_get_cb| and |SSL_magic_pending_session_ptr|. */
- #define SSL_ERROR_PENDING_SESSION 11
-
- /* SSL_ERROR_PENDING_CERTIFICATE indicates the operation failed because the
- * early callback indicated certificate lookup was incomplete. The caller may
- * retry the operation when lookup has completed. Note: when the operation is
- * retried, the early callback will not be called a second time.
- *
- * See also |SSL_CTX_set_select_certificate_cb|. */
- #define SSL_ERROR_PENDING_CERTIFICATE 12
-
- /* SSL_ERROR_WANT_PRIVATE_KEY_OPERATION indicates the operation failed because
- * a private key operation was unfinished. The caller may retry the operation
- * when the private key operation is complete.
- *
- * See also |SSL_set_private_key_method| and
- * |SSL_CTX_set_private_key_method|. */
- #define SSL_ERROR_WANT_PRIVATE_KEY_OPERATION 13
-
- /* SSL_set_mtu sets the |ssl|'s MTU in DTLS to |mtu|. It returns one on success
- * and zero on failure. */
- OPENSSL_EXPORT int SSL_set_mtu(SSL *ssl, unsigned mtu);
-
- /* DTLSv1_set_initial_timeout_duration sets the initial duration for a DTLS
- * handshake timeout.
- *
- * This duration overrides the default of 1 second, which is the strong
- * recommendation of RFC 6347 (see section 4.2.4.1). However, there may exist
- * situations where a shorter timeout would be beneficial, such as for
- * time-sensitive applications. */
- OPENSSL_EXPORT void DTLSv1_set_initial_timeout_duration(SSL *ssl,
- unsigned duration_ms);
-
- /* DTLSv1_get_timeout queries the next DTLS handshake timeout. If there is a
- * timeout in progress, it sets |*out| to the time remaining and returns one.
- * Otherwise, it returns zero.
- *
- * When the timeout expires, call |DTLSv1_handle_timeout| to handle the
- * retransmit behavior.
- *
- * NOTE: This function must be queried again whenever the handshake state
- * machine changes, including when |DTLSv1_handle_timeout| is called. */
- OPENSSL_EXPORT int DTLSv1_get_timeout(const SSL *ssl, struct timeval *out);
-
- /* DTLSv1_handle_timeout is called when a DTLS handshake timeout expires. If no
- * timeout had expired, it returns 0. Otherwise, it retransmits the previous
- * flight of handshake messages and returns 1. If too many timeouts had expired
- * without progress or an error occurs, it returns -1.
- *
- * The caller's external timer should be compatible with the one |ssl| queries
- * within some fudge factor. Otherwise, the call will be a no-op, but
- * |DTLSv1_get_timeout| will return an updated timeout.
- *
- * If the function returns -1, checking if |SSL_get_error| returns
- * |SSL_ERROR_WANT_WRITE| may be used to determine if the retransmit failed due
- * to a non-fatal error at the write |BIO|. However, the operation may not be
- * retried until the next timeout fires.
- *
- * WARNING: This function breaks the usual return value convention.
- *
- * TODO(davidben): This |SSL_ERROR_WANT_WRITE| behavior is kind of bizarre. */
- OPENSSL_EXPORT int DTLSv1_handle_timeout(SSL *ssl);
-
-
- /* Protocol versions. */
-
- #define DTLS1_VERSION_MAJOR 0xfe
- #define SSL3_VERSION_MAJOR 0x03
-
- #define SSL3_VERSION 0x0300
- #define TLS1_VERSION 0x0301
- #define TLS1_1_VERSION 0x0302
- #define TLS1_2_VERSION 0x0303
- #define TLS1_3_VERSION 0x0304
-
- #define DTLS1_VERSION 0xfeff
- #define DTLS1_2_VERSION 0xfefd
-
- #define TLS1_3_DRAFT_VERSION 0x7f12
-
- /* SSL_CTX_set_min_proto_version sets the minimum protocol version for |ctx| to
- * |version|. If |version| is zero, the default minimum version is used. It
- * returns one on success and zero if |version| is invalid. */
- OPENSSL_EXPORT int SSL_CTX_set_min_proto_version(SSL_CTX *ctx,
- uint16_t version);
-
- /* SSL_CTX_set_max_proto_version sets the maximum protocol version for |ctx| to
- * |version|. If |version| is zero, the default maximum version is used. It
- * returns one on success and zero if |version| is invalid. */
- OPENSSL_EXPORT int SSL_CTX_set_max_proto_version(SSL_CTX *ctx,
- uint16_t version);
-
- /* SSL_set_min_proto_version sets the minimum protocol version for |ssl| to
- * |version|. If |version| is zero, the default minimum version is used. It
- * returns one on success and zero if |version| is invalid. */
- OPENSSL_EXPORT int SSL_set_min_proto_version(SSL *ssl, uint16_t version);
-
- /* SSL_set_max_proto_version sets the maximum protocol version for |ssl| to
- * |version|. If |version| is zero, the default maximum version is used. It
- * returns one on success and zero if |version| is invalid. */
- OPENSSL_EXPORT int SSL_set_max_proto_version(SSL *ssl, uint16_t version);
-
- /* SSL_version returns the TLS or DTLS protocol version used by |ssl|, which is
- * one of the |*_VERSION| values. (E.g. |TLS1_2_VERSION|.) Before the version
- * is negotiated, the result is undefined. */
- OPENSSL_EXPORT int SSL_version(const SSL *ssl);
-
-
- /* Options.
- *
- * Options configure protocol behavior. */
-
- /* SSL_OP_NO_QUERY_MTU, in DTLS, disables querying the MTU from the underlying
- * |BIO|. Instead, the MTU is configured with |SSL_set_mtu|. */
- #define SSL_OP_NO_QUERY_MTU 0x00001000L
-
- /* SSL_OP_NO_TICKET disables session ticket support (RFC 5077). */
- #define SSL_OP_NO_TICKET 0x00004000L
-
- /* SSL_OP_CIPHER_SERVER_PREFERENCE configures servers to select ciphers and
- * ECDHE curves according to the server's preferences instead of the
- * client's. */
- #define SSL_OP_CIPHER_SERVER_PREFERENCE 0x00400000L
-
- /* The following flags toggle individual protocol versions. This is deprecated.
- * Use |SSL_CTX_set_min_proto_version| and |SSL_CTX_set_max_proto_version|
- * instead. */
- #define SSL_OP_NO_SSLv3 0x02000000L
- #define SSL_OP_NO_TLSv1 0x04000000L
- #define SSL_OP_NO_TLSv1_2 0x08000000L
- #define SSL_OP_NO_TLSv1_1 0x10000000L
- #define SSL_OP_NO_TLSv1_3 0x20000000L
- #define SSL_OP_NO_DTLSv1 SSL_OP_NO_TLSv1
- #define SSL_OP_NO_DTLSv1_2 SSL_OP_NO_TLSv1_2
-
- /* SSL_CTX_set_options enables all options set in |options| (which should be one
- * or more of the |SSL_OP_*| values, ORed together) in |ctx|. It returns a
- * bitmask representing the resulting enabled options. */
- OPENSSL_EXPORT uint32_t SSL_CTX_set_options(SSL_CTX *ctx, uint32_t options);
-
- /* SSL_CTX_clear_options disables all options set in |options| (which should be
- * one or more of the |SSL_OP_*| values, ORed together) in |ctx|. It returns a
- * bitmask representing the resulting enabled options. */
- OPENSSL_EXPORT uint32_t SSL_CTX_clear_options(SSL_CTX *ctx, uint32_t options);
-
- /* SSL_CTX_get_options returns a bitmask of |SSL_OP_*| values that represent all
- * the options enabled for |ctx|. */
- OPENSSL_EXPORT uint32_t SSL_CTX_get_options(const SSL_CTX *ctx);
-
- /* SSL_set_options enables all options set in |options| (which should be one or
- * more of the |SSL_OP_*| values, ORed together) in |ssl|. It returns a bitmask
- * representing the resulting enabled options. */
- OPENSSL_EXPORT uint32_t SSL_set_options(SSL *ssl, uint32_t options);
-
- /* SSL_clear_options disables all options set in |options| (which should be one
- * or more of the |SSL_OP_*| values, ORed together) in |ssl|. It returns a
- * bitmask representing the resulting enabled options. */
- OPENSSL_EXPORT uint32_t SSL_clear_options(SSL *ssl, uint32_t options);
-
- /* SSL_get_options returns a bitmask of |SSL_OP_*| values that represent all the
- * options enabled for |ssl|. */
- OPENSSL_EXPORT uint32_t SSL_get_options(const SSL *ssl);
-
-
- /* Modes.
- *
- * Modes configure API behavior. */
-
- /* SSL_MODE_ENABLE_PARTIAL_WRITE, in TLS, allows |SSL_write| to complete with a
- * partial result when the only part of the input was written in a single
- * record. In DTLS, it does nothing. */
- #define SSL_MODE_ENABLE_PARTIAL_WRITE 0x00000001L
-
- /* SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER, in TLS, allows retrying an incomplete
- * |SSL_write| with a different buffer. However, |SSL_write| still assumes the
- * buffer contents are unchanged. This is not the default to avoid the
- * misconception that non-blocking |SSL_write| behaves like non-blocking
- * |write|. In DTLS, it does nothing. */
- #define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002L
-
- /* SSL_MODE_NO_AUTO_CHAIN disables automatically building a certificate chain
- * before sending certificates to the peer. This flag is set (and the feature
- * disabled) by default.
- * TODO(davidben): Remove this behavior. https://crbug.com/boringssl/42. */
- #define SSL_MODE_NO_AUTO_CHAIN 0x00000008L
-
- /* SSL_MODE_ENABLE_FALSE_START allows clients to send application data before
- * receipt of ChangeCipherSpec and Finished. This mode enables full handshakes
- * to 'complete' in one RTT. See RFC 7918.
- *
- * When False Start is enabled, |SSL_do_handshake| may succeed before the
- * handshake has completely finished. |SSL_write| will function at this point,
- * and |SSL_read| will transparently wait for the final handshake leg before
- * returning application data. To determine if False Start occurred or when the
- * handshake is completely finished, see |SSL_in_false_start|, |SSL_in_init|,
- * and |SSL_CB_HANDSHAKE_DONE| from |SSL_CTX_set_info_callback|. */
- #define SSL_MODE_ENABLE_FALSE_START 0x00000080L
-
- /* SSL_MODE_CBC_RECORD_SPLITTING causes multi-byte CBC records in SSL 3.0 and
- * TLS 1.0 to be split in two: the first record will contain a single byte and
- * the second will contain the remainder. This effectively randomises the IV and
- * prevents BEAST attacks. */
- #define SSL_MODE_CBC_RECORD_SPLITTING 0x00000100L
-
- /* SSL_MODE_NO_SESSION_CREATION will cause any attempts to create a session to
- * fail with SSL_R_SESSION_MAY_NOT_BE_CREATED. This can be used to enforce that
- * session resumption is used for a given SSL*. */
- #define SSL_MODE_NO_SESSION_CREATION 0x00000200L
-
- /* SSL_MODE_SEND_FALLBACK_SCSV sends TLS_FALLBACK_SCSV in the ClientHello.
- * To be set only by applications that reconnect with a downgraded protocol
- * version; see RFC 7507 for details.
- *
- * DO NOT ENABLE THIS if your application attempts a normal handshake. Only use
- * this in explicit fallback retries, following the guidance in RFC 7507. */
- #define SSL_MODE_SEND_FALLBACK_SCSV 0x00000400L
-
- /* SSL_CTX_set_mode enables all modes set in |mode| (which should be one or more
- * of the |SSL_MODE_*| values, ORed together) in |ctx|. It returns a bitmask
- * representing the resulting enabled modes. */
- OPENSSL_EXPORT uint32_t SSL_CTX_set_mode(SSL_CTX *ctx, uint32_t mode);
-
- /* SSL_CTX_clear_mode disables all modes set in |mode| (which should be one or
- * more of the |SSL_MODE_*| values, ORed together) in |ctx|. It returns a
- * bitmask representing the resulting enabled modes. */
- OPENSSL_EXPORT uint32_t SSL_CTX_clear_mode(SSL_CTX *ctx, uint32_t mode);
-
- /* SSL_CTX_get_mode returns a bitmask of |SSL_MODE_*| values that represent all
- * the modes enabled for |ssl|. */
- OPENSSL_EXPORT uint32_t SSL_CTX_get_mode(const SSL_CTX *ctx);
-
- /* SSL_set_mode enables all modes set in |mode| (which should be one or more of
- * the |SSL_MODE_*| values, ORed together) in |ssl|. It returns a bitmask
- * representing the resulting enabled modes. */
- OPENSSL_EXPORT uint32_t SSL_set_mode(SSL *ssl, uint32_t mode);
-
- /* SSL_clear_mode disables all modes set in |mode| (which should be one or more
- * of the |SSL_MODE_*| values, ORed together) in |ssl|. It returns a bitmask
- * representing the resulting enabled modes. */
- OPENSSL_EXPORT uint32_t SSL_clear_mode(SSL *ssl, uint32_t mode);
-
- /* SSL_get_mode returns a bitmask of |SSL_MODE_*| values that represent all the
- * modes enabled for |ssl|. */
- OPENSSL_EXPORT uint32_t SSL_get_mode(const SSL *ssl);
-
- /* SSL_CTX_set0_buffer_pool sets a |CRYPTO_BUFFER_POOL| that will be used to
- * store certificates. This can allow multiple connections to share
- * certificates and thus save memory.
- *
- * The SSL_CTX does not take ownership of |pool| and the caller must ensure
- * that |pool| outlives |ctx| and all objects linked to it, including |SSL|,
- * |X509| and |SSL_SESSION| objects. Basically, don't ever free |pool|. */
- OPENSSL_EXPORT void SSL_CTX_set0_buffer_pool(SSL_CTX *ctx,
- CRYPTO_BUFFER_POOL *pool);
-
-
- /* Configuring certificates and private keys.
- *
- * These functions configure the connection's leaf certificate, private key, and
- * certificate chain. The certificate chain is ordered leaf to root (as sent on
- * the wire) but does not include the leaf. Both client and server certificates
- * use these functions.
- *
- * Certificates and keys may be configured before the handshake or dynamically
- * in the early callback and certificate callback. */
-
- /* SSL_CTX_use_certificate sets |ctx|'s leaf certificate to |x509|. It returns
- * one on success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x509);
-
- /* SSL_use_certificate sets |ssl|'s leaf certificate to |x509|. It returns one
- * on success and zero on failure. */
- OPENSSL_EXPORT int SSL_use_certificate(SSL *ssl, X509 *x509);
-
- /* SSL_CTX_use_PrivateKey sets |ctx|'s private key to |pkey|. It returns one on
- * success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
-
- /* SSL_use_PrivateKey sets |ssl|'s private key to |pkey|. It returns one on
- * success and zero on failure. */
- OPENSSL_EXPORT int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
-
- /* SSL_CTX_set0_chain sets |ctx|'s certificate chain, excluding the leaf, to
- * |chain|. On success, it returns one and takes ownership of |chain|.
- * Otherwise, it returns zero. */
- OPENSSL_EXPORT int SSL_CTX_set0_chain(SSL_CTX *ctx, STACK_OF(X509) *chain);
-
- /* SSL_CTX_set1_chain sets |ctx|'s certificate chain, excluding the leaf, to
- * |chain|. It returns one on success and zero on failure. The caller retains
- * ownership of |chain| and may release it freely. */
- OPENSSL_EXPORT int SSL_CTX_set1_chain(SSL_CTX *ctx, STACK_OF(X509) *chain);
-
- /* SSL_set0_chain sets |ssl|'s certificate chain, excluding the leaf, to
- * |chain|. On success, it returns one and takes ownership of |chain|.
- * Otherwise, it returns zero. */
- OPENSSL_EXPORT int SSL_set0_chain(SSL *ssl, STACK_OF(X509) *chain);
-
- /* SSL_set1_chain sets |ssl|'s certificate chain, excluding the leaf, to
- * |chain|. It returns one on success and zero on failure. The caller retains
- * ownership of |chain| and may release it freely. */
- OPENSSL_EXPORT int SSL_set1_chain(SSL *ssl, STACK_OF(X509) *chain);
-
- /* SSL_CTX_add0_chain_cert appends |x509| to |ctx|'s certificate chain. On
- * success, it returns one and takes ownership of |x509|. Otherwise, it returns
- * zero. */
- OPENSSL_EXPORT int SSL_CTX_add0_chain_cert(SSL_CTX *ctx, X509 *x509);
-
- /* SSL_CTX_add1_chain_cert appends |x509| to |ctx|'s certificate chain. It
- * returns one on success and zero on failure. The caller retains ownership of
- * |x509| and may release it freely. */
- OPENSSL_EXPORT int SSL_CTX_add1_chain_cert(SSL_CTX *ctx, X509 *x509);
-
- /* SSL_add0_chain_cert appends |x509| to |ctx|'s certificate chain. On success,
- * it returns one and takes ownership of |x509|. Otherwise, it returns zero. */
- OPENSSL_EXPORT int SSL_add0_chain_cert(SSL *ssl, X509 *x509);
-
- /* SSL_CTX_add_extra_chain_cert calls |SSL_CTX_add0_chain_cert|. */
- OPENSSL_EXPORT int SSL_CTX_add_extra_chain_cert(SSL_CTX *ctx, X509 *x509);
-
- /* SSL_add1_chain_cert appends |x509| to |ctx|'s certificate chain. It returns
- * one on success and zero on failure. The caller retains ownership of |x509|
- * and may release it freely. */
- OPENSSL_EXPORT int SSL_add1_chain_cert(SSL *ssl, X509 *x509);
-
- /* SSL_CTX_clear_chain_certs clears |ctx|'s certificate chain and returns
- * one. */
- OPENSSL_EXPORT int SSL_CTX_clear_chain_certs(SSL_CTX *ctx);
-
- /* SSL_CTX_clear_extra_chain_certs calls |SSL_CTX_clear_chain_certs|. */
- OPENSSL_EXPORT int SSL_CTX_clear_extra_chain_certs(SSL_CTX *ctx);
-
- /* SSL_clear_chain_certs clears |ssl|'s certificate chain and returns one. */
- OPENSSL_EXPORT int SSL_clear_chain_certs(SSL *ssl);
-
- /* SSL_CTX_set_cert_cb sets a callback that is called to select a certificate.
- * The callback returns one on success, zero on internal error, and a negative
- * number on failure or to pause the handshake. If the handshake is paused,
- * |SSL_get_error| will return |SSL_ERROR_WANT_X509_LOOKUP|.
- *
- * On the client, the callback may call |SSL_get0_certificate_types| and
- * |SSL_get_client_CA_list| for information on the server's certificate
- * request.
- *
- * On the server, the callback will be called on non-resumption handshakes,
- * after extensions have been processed. */
- OPENSSL_EXPORT void SSL_CTX_set_cert_cb(SSL_CTX *ctx,
- int (*cb)(SSL *ssl, void *arg),
- void *arg);
-
- /* SSL_set_cert_cb sets a callback that is called to select a certificate. The
- * callback returns one on success, zero on internal error, and a negative
- * number on failure or to pause the handshake. If the handshake is paused,
- * |SSL_get_error| will return |SSL_ERROR_WANT_X509_LOOKUP|.
- *
- * On the client, the callback may call |SSL_get0_certificate_types| and
- * |SSL_get_client_CA_list| for information on the server's certificate
- * request. */
- OPENSSL_EXPORT void SSL_set_cert_cb(SSL *ssl, int (*cb)(SSL *ssl, void *arg),
- void *arg);
-
- /* SSL_get0_certificate_types, for a client, sets |*out_types| to an array
- * containing the client certificate types requested by a server. It returns the
- * length of the array.
- *
- * The behavior of this function is undefined except during the callbacks set by
- * by |SSL_CTX_set_cert_cb| and |SSL_CTX_set_client_cert_cb| or when the
- * handshake is paused because of them. */
- OPENSSL_EXPORT size_t SSL_get0_certificate_types(SSL *ssl,
- const uint8_t **out_types);
-
- /* SSL_certs_clear resets the private key, leaf certificate, and certificate
- * chain of |ssl|. */
- OPENSSL_EXPORT void SSL_certs_clear(SSL *ssl);
-
- /* SSL_CTX_check_private_key returns one if the certificate and private key
- * configured in |ctx| are consistent and zero otherwise. */
- OPENSSL_EXPORT int SSL_CTX_check_private_key(const SSL_CTX *ctx);
-
- /* SSL_check_private_key returns one if the certificate and private key
- * configured in |ssl| are consistent and zero otherwise. */
- OPENSSL_EXPORT int SSL_check_private_key(const SSL *ssl);
-
- /* SSL_CTX_get0_certificate returns |ctx|'s leaf certificate. */
- OPENSSL_EXPORT X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
-
- /* SSL_get_certificate returns |ssl|'s leaf certificate. */
- OPENSSL_EXPORT X509 *SSL_get_certificate(const SSL *ssl);
-
- /* SSL_CTX_get0_privatekey returns |ctx|'s private key. */
- OPENSSL_EXPORT EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx);
-
- /* SSL_get_privatekey returns |ssl|'s private key. */
- OPENSSL_EXPORT EVP_PKEY *SSL_get_privatekey(const SSL *ssl);
-
- /* SSL_CTX_get0_chain_certs sets |*out_chain| to |ctx|'s certificate chain and
- * returns one. */
- OPENSSL_EXPORT int SSL_CTX_get0_chain_certs(const SSL_CTX *ctx,
- STACK_OF(X509) **out_chain);
-
- /* SSL_CTX_get_extra_chain_certs calls |SSL_CTX_get0_chain_certs|. */
- OPENSSL_EXPORT int SSL_CTX_get_extra_chain_certs(const SSL_CTX *ctx,
- STACK_OF(X509) **out_chain);
-
- /* SSL_get0_chain_certs sets |*out_chain| to |ssl|'s certificate chain and
- * returns one. */
- OPENSSL_EXPORT int SSL_get0_chain_certs(const SSL *ssl,
- STACK_OF(X509) **out_chain);
-
- /* SSL_CTX_set_signed_cert_timestamp_list sets the list of signed certificate
- * timestamps that is sent to clients that request it. The |list| argument must
- * contain one or more SCT structures serialised as a SignedCertificateTimestamp
- * List (see https://tools.ietf.org/html/rfc6962#section-3.3) – i.e. each SCT
- * is prefixed by a big-endian, uint16 length and the concatenation of one or
- * more such prefixed SCTs are themselves also prefixed by a uint16 length. It
- * returns one on success and zero on error. The caller retains ownership of
- * |list|. */
- OPENSSL_EXPORT int SSL_CTX_set_signed_cert_timestamp_list(SSL_CTX *ctx,
- const uint8_t *list,
- size_t list_len);
-
- /* SSL_CTX_set_ocsp_response sets the OCSP reponse that is sent to clients
- * which request it. It returns one on success and zero on error. The caller
- * retains ownership of |response|. */
- OPENSSL_EXPORT int SSL_CTX_set_ocsp_response(SSL_CTX *ctx,
- const uint8_t *response,
- size_t response_len);
-
- /* SSL_set_ocsp_response sets the OCSP reponse that is sent to clients which
- * request it. It returns one on success and zero on error. The caller retains
- * ownership of |response|. */
- OPENSSL_EXPORT int SSL_set_ocsp_response(SSL *ssl,
- const uint8_t *response,
- size_t response_len);
-
- /* SSL_SIGN_* are signature algorithm values as defined in TLS 1.3. */
- #define SSL_SIGN_RSA_PKCS1_SHA1 0x0201
- #define SSL_SIGN_RSA_PKCS1_SHA256 0x0401
- #define SSL_SIGN_RSA_PKCS1_SHA384 0x0501
- #define SSL_SIGN_RSA_PKCS1_SHA512 0x0601
- #define SSL_SIGN_ECDSA_SHA1 0x0203
- #define SSL_SIGN_ECDSA_SECP256R1_SHA256 0x0403
- #define SSL_SIGN_ECDSA_SECP384R1_SHA384 0x0503
- #define SSL_SIGN_ECDSA_SECP521R1_SHA512 0x0603
- #define SSL_SIGN_RSA_PSS_SHA256 0x0804
- #define SSL_SIGN_RSA_PSS_SHA384 0x0805
- #define SSL_SIGN_RSA_PSS_SHA512 0x0806
-
- /* SSL_SIGN_RSA_PKCS1_MD5_SHA1 is an internal signature algorithm used to
- * specify raw RSASSA-PKCS1-v1_5 with an MD5/SHA-1 concatenation, as used in TLS
- * before TLS 1.2. */
- #define SSL_SIGN_RSA_PKCS1_MD5_SHA1 0xff01
-
- /* SSL_CTX_set_signing_algorithm_prefs configures |ctx| to use |prefs| as the
- * preference list when signing with |ctx|'s private key. It returns one on
- * success and zero on error. |prefs| should not include the internal-only value
- * |SSL_SIGN_RSA_PKCS1_MD5_SHA1|. */
- OPENSSL_EXPORT int SSL_CTX_set_signing_algorithm_prefs(SSL_CTX *ctx,
- const uint16_t *prefs,
- size_t num_prefs);
-
- /* SSL_set_signing_algorithm_prefs configures |ssl| to use |prefs| as the
- * preference list when signing with |ssl|'s private key. It returns one on
- * success and zero on error. |prefs| should not include the internal-only value
- * |SSL_SIGN_RSA_PKCS1_MD5_SHA1|. */
- OPENSSL_EXPORT int SSL_set_signing_algorithm_prefs(SSL *ssl,
- const uint16_t *prefs,
- size_t num_prefs);
-
-
- /* Certificate and private key convenience functions. */
-
- /* SSL_CTX_use_RSAPrivateKey sets |ctx|'s private key to |rsa|. It returns one
- * on success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
-
- /* SSL_use_RSAPrivateKey sets |ctx|'s private key to |rsa|. It returns one on
- * success and zero on failure. */
- OPENSSL_EXPORT int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
-
- /* The following functions configure certificates or private keys but take as
- * input DER-encoded structures. They return one on success and zero on
- * failure. */
-
- OPENSSL_EXPORT int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, size_t der_len,
- const uint8_t *der);
- OPENSSL_EXPORT int SSL_use_certificate_ASN1(SSL *ssl, const uint8_t *der,
- size_t der_len);
-
- OPENSSL_EXPORT int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx,
- const uint8_t *der,
- size_t der_len);
- OPENSSL_EXPORT int SSL_use_PrivateKey_ASN1(int type, SSL *ssl,
- const uint8_t *der, size_t der_len);
-
- OPENSSL_EXPORT int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx,
- const uint8_t *der,
- size_t der_len);
- OPENSSL_EXPORT int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const uint8_t *der,
- size_t der_len);
-
- /* The following functions configure certificates or private keys but take as
- * input files to read from. They return one on success and zero on failure. The
- * |type| parameter is one of the |SSL_FILETYPE_*| values and determines whether
- * the file's contents are read as PEM or DER. */
-
- #define SSL_FILETYPE_ASN1 X509_FILETYPE_ASN1
- #define SSL_FILETYPE_PEM X509_FILETYPE_PEM
-
- OPENSSL_EXPORT int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx,
- const char *file,
- int type);
- OPENSSL_EXPORT int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file,
- int type);
-
- OPENSSL_EXPORT int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file,
- int type);
- OPENSSL_EXPORT int SSL_use_certificate_file(SSL *ssl, const char *file,
- int type);
-
- OPENSSL_EXPORT int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file,
- int type);
- OPENSSL_EXPORT int SSL_use_PrivateKey_file(SSL *ssl, const char *file,
- int type);
-
- /* SSL_CTX_use_certificate_chain_file configures certificates for |ctx|. It
- * reads the contents of |file| as a PEM-encoded leaf certificate followed
- * optionally by the certificate chain to send to the peer. It returns one on
- * success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx,
- const char *file);
-
- /* SSL_CTX_set_default_passwd_cb sets the password callback for PEM-based
- * convenience functions called on |ctx|. */
- OPENSSL_EXPORT void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx,
- pem_password_cb *cb);
-
- /* SSL_CTX_set_default_passwd_cb_userdata sets the userdata parameter for
- * |ctx|'s password callback. */
- OPENSSL_EXPORT void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,
- void *data);
-
-
- /* Custom private keys. */
-
- enum ssl_private_key_result_t {
- ssl_private_key_success,
- ssl_private_key_retry,
- ssl_private_key_failure,
- };
-
- /* SSL_PRIVATE_KEY_METHOD describes private key hooks. This is used to off-load
- * signing operations to a custom, potentially asynchronous, backend. */
- typedef struct ssl_private_key_method_st {
- /* type returns the type of the key used by |ssl|. For RSA keys, return
- * |NID_rsaEncryption|. For ECDSA keys, return |NID_X9_62_prime256v1|,
- * |NID_secp384r1|, or |NID_secp521r1|, depending on the curve.
- *
- * Returning |EVP_PKEY_EC| for ECDSA keys is deprecated and may result in
- * connection failures in TLS 1.3. */
- int (*type)(SSL *ssl);
-
- /* max_signature_len returns the maximum length of a signature signed by the
- * key used by |ssl|. This must be a constant value for a given |ssl|. */
- size_t (*max_signature_len)(SSL *ssl);
-
- /* sign signs the message |in| in using the specified signature algorithm. On
- * success, it returns |ssl_private_key_success| and writes at most |max_out|
- * bytes of signature data to |out| and sets |*out_len| to the number of bytes
- * written. On failure, it returns |ssl_private_key_failure|. If the operation
- * has not completed, it returns |ssl_private_key_retry|. |sign| should
- * arrange for the high-level operation on |ssl| to be retried when the
- * operation is completed. This will result in a call to |complete|.
- *
- * |signature_algorithm| is one of the |SSL_SIGN_*| values, as defined in TLS
- * 1.3. Note that, in TLS 1.2, ECDSA algorithms do not require that curve
- * sizes match hash sizes, so the curve portion of |SSL_SIGN_ECDSA_*| values
- * must be ignored. BoringSSL will internally handle the curve matching logic
- * where appropriate.
- *
- * It is an error to call |sign| while another private key operation is in
- * progress on |ssl|. */
- enum ssl_private_key_result_t (*sign)(SSL *ssl, uint8_t *out, size_t *out_len,
- size_t max_out,
- uint16_t signature_algorithm,
- const uint8_t *in, size_t in_len);
-
- /* sign_digest signs |in_len| bytes of digest from |in|. |md| is the hash
- * function used to calculate |in|. On success, it returns
- * |ssl_private_key_success| and writes at most |max_out| bytes of signature
- * data to |out|. On failure, it returns |ssl_private_key_failure|. If the
- * operation has not completed, it returns |ssl_private_key_retry|. |sign|
- * should arrange for the high-level operation on |ssl| to be retried when the
- * operation is completed. This will result in a call to |complete|.
- *
- * If the key is an RSA key, implementations must use PKCS#1 padding. |in| is
- * the digest itself, so the DigestInfo prefix, if any, must be prepended by
- * |sign|. If |md| is |EVP_md5_sha1|, there is no prefix.
- *
- * It is an error to call |sign_digest| while another private key operation is
- * in progress on |ssl|.
- *
- * This function is deprecated. Implement |sign| instead.
- *
- * TODO(davidben): Remove this function. */
- enum ssl_private_key_result_t (*sign_digest)(SSL *ssl, uint8_t *out,
- size_t *out_len, size_t max_out,
- const EVP_MD *md,
- const uint8_t *in,
- size_t in_len);
-
- /* decrypt decrypts |in_len| bytes of encrypted data from |in|. On success it
- * returns |ssl_private_key_success|, writes at most |max_out| bytes of
- * decrypted data to |out| and sets |*out_len| to the actual number of bytes
- * written. On failure it returns |ssl_private_key_failure|. If the operation
- * has not completed, it returns |ssl_private_key_retry|. The caller should
- * arrange for the high-level operation on |ssl| to be retried when the
- * operation is completed, which will result in a call to |complete|. This
- * function only works with RSA keys and should perform a raw RSA decryption
- * operation with no padding.
- *
- * It is an error to call |decrypt| while another private key operation is in
- * progress on |ssl|. */
- enum ssl_private_key_result_t (*decrypt)(SSL *ssl, uint8_t *out,
- size_t *out_len, size_t max_out,
- const uint8_t *in, size_t in_len);
-
- /* complete completes a pending operation. If the operation has completed, it
- * returns |ssl_private_key_success| and writes the result to |out| as in
- * |sign|. Otherwise, it returns |ssl_private_key_failure| on failure and
- * |ssl_private_key_retry| if the operation is still in progress.
- *
- * |complete| may be called arbitrarily many times before completion, but it
- * is an error to call |complete| if there is no pending operation in progress
- * on |ssl|. */
- enum ssl_private_key_result_t (*complete)(SSL *ssl, uint8_t *out,
- size_t *out_len, size_t max_out);
- } SSL_PRIVATE_KEY_METHOD;
-
- /* SSL_set_private_key_method configures a custom private key on |ssl|.
- * |key_method| must remain valid for the lifetime of |ssl|. */
- OPENSSL_EXPORT void SSL_set_private_key_method(
- SSL *ssl, const SSL_PRIVATE_KEY_METHOD *key_method);
-
- /* SSL_CTX_set_private_key_method configures a custom private key on |ctx|.
- * |key_method| must remain valid for the lifetime of |ctx|. */
- OPENSSL_EXPORT void SSL_CTX_set_private_key_method(
- SSL_CTX *ctx, const SSL_PRIVATE_KEY_METHOD *key_method);
-
-
- /* Cipher suites.
- *
- * |SSL_CIPHER| objects represent cipher suites. */
-
- DECLARE_STACK_OF(SSL_CIPHER)
-
- /* SSL_get_cipher_by_value returns the structure representing a TLS cipher
- * suite based on its assigned number, or NULL if unknown. See
- * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4. */
- OPENSSL_EXPORT const SSL_CIPHER *SSL_get_cipher_by_value(uint16_t value);
-
- /* SSL_CIPHER_get_id returns |cipher|'s id. It may be cast to a |uint16_t| to
- * get the cipher suite value. */
- OPENSSL_EXPORT uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_AES returns one if |cipher| uses AES (either GCM or CBC
- * mode). */
- OPENSSL_EXPORT int SSL_CIPHER_is_AES(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_has_MD5_HMAC returns one if |cipher| uses HMAC-MD5. */
- OPENSSL_EXPORT int SSL_CIPHER_has_MD5_HMAC(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_has_SHA1_HMAC returns one if |cipher| uses HMAC-SHA1. */
- OPENSSL_EXPORT int SSL_CIPHER_has_SHA1_HMAC(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_has_SHA256_HMAC returns one if |cipher| uses HMAC-SHA256. */
- OPENSSL_EXPORT int SSL_CIPHER_has_SHA256_HMAC(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_AESGCM returns one if |cipher| uses AES-GCM. */
- OPENSSL_EXPORT int SSL_CIPHER_is_AESGCM(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_AES128GCM returns one if |cipher| uses 128-bit AES-GCM. */
- OPENSSL_EXPORT int SSL_CIPHER_is_AES128GCM(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_AES128CBC returns one if |cipher| uses 128-bit AES in CBC
- * mode. */
- OPENSSL_EXPORT int SSL_CIPHER_is_AES128CBC(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_AES256CBC returns one if |cipher| uses 256-bit AES in CBC
- * mode. */
- OPENSSL_EXPORT int SSL_CIPHER_is_AES256CBC(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_CHACHA20POLY1305 returns one if |cipher| uses
- * CHACHA20_POLY1305. Note this includes both the RFC 7905 and
- * draft-agl-tls-chacha20poly1305-04 versions. */
- OPENSSL_EXPORT int SSL_CIPHER_is_CHACHA20POLY1305(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_NULL returns one if |cipher| does not encrypt. */
- OPENSSL_EXPORT int SSL_CIPHER_is_NULL(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_block_cipher returns one if |cipher| is a block cipher. */
- OPENSSL_EXPORT int SSL_CIPHER_is_block_cipher(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_ECDSA returns one if |cipher| uses ECDSA. */
- OPENSSL_EXPORT int SSL_CIPHER_is_ECDSA(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_DHE returns one if |cipher| uses DHE. */
- OPENSSL_EXPORT int SSL_CIPHER_is_DHE(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_is_ECDHE returns one if |cipher| uses ECDHE. */
- OPENSSL_EXPORT int SSL_CIPHER_is_ECDHE(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_get_min_version returns the minimum protocol version required
- * for |cipher|. */
- OPENSSL_EXPORT uint16_t SSL_CIPHER_get_min_version(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_get_max_version returns the maximum protocol version that
- * supports |cipher|. */
- OPENSSL_EXPORT uint16_t SSL_CIPHER_get_max_version(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_get_name returns the OpenSSL name of |cipher|. */
- OPENSSL_EXPORT const char *SSL_CIPHER_get_name(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_get_kx_name returns a string that describes the key-exchange
- * method used by |cipher|. For example, "ECDHE_ECDSA". TLS 1.3 AEAD-only
- * ciphers return the string "GENERIC". */
- OPENSSL_EXPORT const char *SSL_CIPHER_get_kx_name(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_get_rfc_name returns a newly-allocated string with the standard
- * name for |cipher| or NULL on error. For example,
- * "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256". The caller is responsible for
- * calling |OPENSSL_free| on the result. */
- OPENSSL_EXPORT char *SSL_CIPHER_get_rfc_name(const SSL_CIPHER *cipher);
-
- /* SSL_CIPHER_get_bits returns the strength, in bits, of |cipher|. If
- * |out_alg_bits| is not NULL, it writes the number of bits consumed by the
- * symmetric algorithm to |*out_alg_bits|. */
- OPENSSL_EXPORT int SSL_CIPHER_get_bits(const SSL_CIPHER *cipher,
- int *out_alg_bits);
-
-
- /* Cipher suite configuration.
- *
- * OpenSSL uses a mini-language to configure cipher suites. The language
- * maintains an ordered list of enabled ciphers, along with an ordered list of
- * disabled but available ciphers. Initially, all ciphers are disabled with a
- * default ordering. The cipher string is then interpreted as a sequence of
- * directives, separated by colons, each of which modifies this state.
- *
- * Most directives consist of a one character or empty opcode followed by a
- * selector which matches a subset of available ciphers.
- *
- * Available opcodes are:
- *
- * The empty opcode enables and appends all matching disabled ciphers to the
- * end of the enabled list. The newly appended ciphers are ordered relative to
- * each other matching their order in the disabled list.
- *
- * |-| disables all matching enabled ciphers and prepends them to the disabled
- * list, with relative order from the enabled list preserved. This means the
- * most recently disabled ciphers get highest preference relative to other
- * disabled ciphers if re-enabled.
- *
- * |+| moves all matching enabled ciphers to the end of the enabled list, with
- * relative order preserved.
- *
- * |!| deletes all matching ciphers, enabled or not, from either list. Deleted
- * ciphers will not matched by future operations.
- *
- * A selector may be a specific cipher (using the OpenSSL name for the cipher)
- * or one or more rules separated by |+|. The final selector matches the
- * intersection of each rule. For instance, |AESGCM+aECDSA| matches
- * ECDSA-authenticated AES-GCM ciphers.
- *
- * Available cipher rules are:
- *
- * |ALL| matches all ciphers.
- *
- * |kRSA|, |kDHE|, |kECDHE|, and |kPSK| match ciphers using plain RSA, DHE,
- * ECDHE, and plain PSK key exchanges, respectively. Note that ECDHE_PSK is
- * matched by |kECDHE| and not |kPSK|.
- *
- * |aRSA|, |aECDSA|, and |aPSK| match ciphers authenticated by RSA, ECDSA, and
- * a pre-shared key, respectively.
- *
- * |RSA|, |DHE|, |ECDHE|, |PSK|, |ECDSA|, and |PSK| are aliases for the
- * corresponding |k*| or |a*| cipher rule. |RSA| is an alias for |kRSA|, not
- * |aRSA|.
- *
- * |3DES|, |AES128|, |AES256|, |AES|, |AESGCM|, |CHACHA20| match ciphers
- * whose bulk cipher use the corresponding encryption scheme. Note that
- * |AES|, |AES128|, and |AES256| match both CBC and GCM ciphers.
- *
- * |MD5|, |SHA1|, |SHA256|, and |SHA384| match legacy cipher suites using the
- * corresponding hash function in their MAC. AEADs are matched by none of
- * these.
- *
- * |SHA| is an alias for |SHA1|.
- *
- * Although implemented, authentication-only ciphers match no rules and must be
- * explicitly selected by name.
- *
- * Deprecated cipher rules:
- *
- * |kEDH|, |EDH|, |kEECDH|, and |EECDH| are legacy aliases for |kDHE|, |DHE|,
- * |kECDHE|, and |ECDHE|, respectively.
- *
- * |HIGH| is an alias for |ALL|.
- *
- * |FIPS| is an alias for |HIGH|.
- *
- * |SSLv3| and |TLSv1| match ciphers available in TLS 1.1 or earlier.
- * |TLSv1_2| matches ciphers new in TLS 1.2. This is confusing and should not
- * be used.
- *
- * Unknown rules silently match nothing.
- *
- * The special |@STRENGTH| directive will sort all enabled ciphers by strength.
- *
- * The |DEFAULT| directive, when appearing at the front of the string, expands
- * to the default ordering of available ciphers.
- *
- * If configuring a server, one may also configure equal-preference groups to
- * partially respect the client's preferences when
- * |SSL_OP_CIPHER_SERVER_PREFERENCE| is enabled. Ciphers in an equal-preference
- * group have equal priority and use the client order. This may be used to
- * enforce that AEADs are preferred but select AES-GCM vs. ChaCha20-Poly1305
- * based on client preferences. An equal-preference is specified with square
- * brackets, combining multiple selectors separated by |. For example:
- *
- * [ECDHE-ECDSA-CHACHA20-POLY1305|ECDHE-ECDSA-AES128-GCM-SHA256]
- *
- * Once an equal-preference group is used, future directives must be
- * opcode-less.
- *
- * TLS 1.3 ciphers do not participate in this mechanism and instead have a
- * built-in preference order. Functions to set cipher lists do not affect TLS
- * 1.3, and functions to query the cipher list do not include TLS 1.3
- * ciphers. */
-
- /* SSL_DEFAULT_CIPHER_LIST is the default cipher suite configuration. It is
- * substituted when a cipher string starts with 'DEFAULT'. */
- #define SSL_DEFAULT_CIPHER_LIST "ALL"
-
- /* SSL_CTX_set_cipher_list configures the cipher list for |ctx|, evaluating
- * |str| as a cipher string. It returns one on success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str);
-
- /* SSL_set_cipher_list configures the cipher list for |ssl|, evaluating |str| as
- * a cipher string. It returns one on success and zero on failure. */
- OPENSSL_EXPORT int SSL_set_cipher_list(SSL *ssl, const char *str);
-
- /* SSL_get_ciphers returns the cipher list for |ssl|, in order of preference. */
- OPENSSL_EXPORT STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *ssl);
-
-
- /* Connection information. */
-
- /* SSL_is_init_finished returns one if |ssl| has completed its initial handshake
- * and has no pending handshake. It returns zero otherwise. */
- OPENSSL_EXPORT int SSL_is_init_finished(const SSL *ssl);
-
- /* SSL_in_init returns one if |ssl| has a pending handshake and zero
- * otherwise. */
- OPENSSL_EXPORT int SSL_in_init(const SSL *ssl);
-
- /* SSL_in_false_start returns one if |ssl| has a pending handshake that is in
- * False Start. |SSL_write| may be called at this point without waiting for the
- * peer, but |SSL_read| will complete the handshake before accepting application
- * data.
- *
- * See also |SSL_MODE_ENABLE_FALSE_START|. */
- OPENSSL_EXPORT int SSL_in_false_start(const SSL *ssl);
-
- /* SSL_get_peer_certificate returns the peer's leaf certificate or NULL if the
- * peer did not use certificates. The caller must call |X509_free| on the
- * result to release it. */
- OPENSSL_EXPORT X509 *SSL_get_peer_certificate(const SSL *ssl);
-
- /* SSL_get_peer_cert_chain returns the peer's certificate chain or NULL if
- * unavailable or the peer did not use certificates. This is the unverified
- * list of certificates as sent by the peer, not the final chain built during
- * verification. For historical reasons, this value may not be available if
- * resuming a serialized |SSL_SESSION|. The caller does not take ownership of
- * the result.
- *
- * WARNING: This function behaves differently between client and server. If
- * |ssl| is a server, the returned chain does not include the leaf certificate.
- * If a client, it does. */
- OPENSSL_EXPORT STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *ssl);
-
- /* SSL_get_peer_full_cert_chain returns the peer's certificate chain, or NULL if
- * unavailable or the peer did not use certificates. This is the unverified
- * list of certificates as sent by the peer, not the final chain built during
- * verification. For historical reasons, this value may not be available if
- * resuming a serialized |SSL_SESSION|. The caller does not take ownership of
- * the result.
- *
- * This is the same as |SSL_get_peer_cert_chain| except that this function
- * always returns the full chain, i.e. the first element of the return value
- * (if any) will be the leaf certificate. In constrast,
- * |SSL_get_peer_cert_chain| returns only the intermediate certificates if the
- * |ssl| is a server. */
- OPENSSL_EXPORT STACK_OF(X509) *SSL_get_peer_full_cert_chain(const SSL *ssl);
-
- /* SSL_get0_signed_cert_timestamp_list sets |*out| and |*out_len| to point to
- * |*out_len| bytes of SCT information from the server. This is only valid if
- * |ssl| is a client. The SCT information is a SignedCertificateTimestampList
- * (including the two leading length bytes).
- * See https://tools.ietf.org/html/rfc6962#section-3.3
- * If no SCT was received then |*out_len| will be zero on return.
- *
- * WARNING: the returned data is not guaranteed to be well formed. */
- OPENSSL_EXPORT void SSL_get0_signed_cert_timestamp_list(const SSL *ssl,
- const uint8_t **out,
- size_t *out_len);
-
- /* SSL_get0_ocsp_response sets |*out| and |*out_len| to point to |*out_len|
- * bytes of an OCSP response from the server. This is the DER encoding of an
- * OCSPResponse type as defined in RFC 2560.
- *
- * WARNING: the returned data is not guaranteed to be well formed. */
- OPENSSL_EXPORT void SSL_get0_ocsp_response(const SSL *ssl, const uint8_t **out,
- size_t *out_len);
-
- /* SSL_get_tls_unique writes at most |max_out| bytes of the tls-unique value
- * for |ssl| to |out| and sets |*out_len| to the number of bytes written. It
- * returns one on success or zero on error. In general |max_out| should be at
- * least 12.
- *
- * This function will always fail if the initial handshake has not completed.
- * The tls-unique value will change after a renegotiation but, since
- * renegotiations can be initiated by the server at any point, the higher-level
- * protocol must either leave them disabled or define states in which the
- * tls-unique value can be read.
- *
- * The tls-unique value is defined by
- * https://tools.ietf.org/html/rfc5929#section-3.1. Due to a weakness in the
- * TLS protocol, tls-unique is broken for resumed connections unless the
- * Extended Master Secret extension is negotiated. Thus this function will
- * return zero if |ssl| performed session resumption unless EMS was used when
- * negotiating the original session. */
- OPENSSL_EXPORT int SSL_get_tls_unique(const SSL *ssl, uint8_t *out,
- size_t *out_len, size_t max_out);
-
- /* SSL_get_extms_support returns one if the Extended Master Secret extension or
- * TLS 1.3 was negotiated. Otherwise, it returns zero. */
- OPENSSL_EXPORT int SSL_get_extms_support(const SSL *ssl);
-
- /* SSL_get_current_cipher returns the cipher used in the current outgoing
- * connection state, or NULL if the null cipher is active. */
- OPENSSL_EXPORT const SSL_CIPHER *SSL_get_current_cipher(const SSL *ssl);
-
- /* SSL_session_reused returns one if |ssl| performed an abbreviated handshake
- * and zero otherwise.
- *
- * TODO(davidben): Hammer down the semantics of this API while a handshake,
- * initial or renego, is in progress. */
- OPENSSL_EXPORT int SSL_session_reused(const SSL *ssl);
-
- /* SSL_get_secure_renegotiation_support returns one if the peer supports secure
- * renegotiation (RFC 5746) or TLS 1.3. Otherwise, it returns zero. */
- OPENSSL_EXPORT int SSL_get_secure_renegotiation_support(const SSL *ssl);
-
- /* SSL_export_keying_material exports a value derived from the master secret, as
- * specified in RFC 5705. It writes |out_len| bytes to |out| given a label and
- * optional context. (Since a zero length context is allowed, the |use_context|
- * flag controls whether a context is included.)
- *
- * It returns one on success and zero otherwise. */
- OPENSSL_EXPORT int SSL_export_keying_material(
- SSL *ssl, uint8_t *out, size_t out_len, const char *label, size_t label_len,
- const uint8_t *context, size_t context_len, int use_context);
-
-
- /* Custom extensions.
- *
- * The custom extension functions allow TLS extensions to be added to
- * ClientHello and ServerHello messages. */
-
- /* SSL_custom_ext_add_cb is a callback function that is called when the
- * ClientHello (for clients) or ServerHello (for servers) is constructed. In
- * the case of a server, this callback will only be called for a given
- * extension if the ClientHello contained that extension – it's not possible to
- * inject extensions into a ServerHello that the client didn't request.
- *
- * When called, |extension_value| will contain the extension number that is
- * being considered for addition (so that a single callback can handle multiple
- * extensions). If the callback wishes to include the extension, it must set
- * |*out| to point to |*out_len| bytes of extension contents and return one. In
- * this case, the corresponding |SSL_custom_ext_free_cb| callback will later be
- * called with the value of |*out| once that data has been copied.
- *
- * If the callback does not wish to add an extension it must return zero.
- *
- * Alternatively, the callback can abort the connection by setting
- * |*out_alert_value| to a TLS alert number and returning -1. */
- typedef int (*SSL_custom_ext_add_cb)(SSL *ssl, unsigned extension_value,
- const uint8_t **out, size_t *out_len,
- int *out_alert_value, void *add_arg);
-
- /* SSL_custom_ext_free_cb is a callback function that is called by OpenSSL iff
- * an |SSL_custom_ext_add_cb| callback previously returned one. In that case,
- * this callback is called and passed the |out| pointer that was returned by
- * the add callback. This is to free any dynamically allocated data created by
- * the add callback. */
- typedef void (*SSL_custom_ext_free_cb)(SSL *ssl, unsigned extension_value,
- const uint8_t *out, void *add_arg);
-
- /* SSL_custom_ext_parse_cb is a callback function that is called by OpenSSL to
- * parse an extension from the peer: that is from the ServerHello for a client
- * and from the ClientHello for a server.
- *
- * When called, |extension_value| will contain the extension number and the
- * contents of the extension are |contents_len| bytes at |contents|.
- *
- * The callback must return one to continue the handshake. Otherwise, if it
- * returns zero, a fatal alert with value |*out_alert_value| is sent and the
- * handshake is aborted. */
- typedef int (*SSL_custom_ext_parse_cb)(SSL *ssl, unsigned extension_value,
- const uint8_t *contents,
- size_t contents_len,
- int *out_alert_value, void *parse_arg);
-
- /* SSL_extension_supported returns one iff OpenSSL internally handles
- * extensions of type |extension_value|. This can be used to avoid registering
- * custom extension handlers for extensions that a future version of OpenSSL
- * may handle internally. */
- OPENSSL_EXPORT int SSL_extension_supported(unsigned extension_value);
-
- /* SSL_CTX_add_client_custom_ext registers callback functions for handling
- * custom TLS extensions for client connections.
- *
- * If |add_cb| is NULL then an empty extension will be added in each
- * ClientHello. Otherwise, see the comment for |SSL_custom_ext_add_cb| about
- * this callback.
- *
- * The |free_cb| may be NULL if |add_cb| doesn't dynamically allocate data that
- * needs to be freed.
- *
- * It returns one on success or zero on error. It's always an error to register
- * callbacks for the same extension twice, or to register callbacks for an
- * extension that OpenSSL handles internally. See |SSL_extension_supported| to
- * discover, at runtime, which extensions OpenSSL handles internally. */
- OPENSSL_EXPORT int SSL_CTX_add_client_custom_ext(
- SSL_CTX *ctx, unsigned extension_value, SSL_custom_ext_add_cb add_cb,
- SSL_custom_ext_free_cb free_cb, void *add_arg,
- SSL_custom_ext_parse_cb parse_cb, void *parse_arg);
-
- /* SSL_CTX_add_server_custom_ext is the same as
- * |SSL_CTX_add_client_custom_ext|, but for server connections.
- *
- * Unlike on the client side, if |add_cb| is NULL no extension will be added.
- * The |add_cb|, if any, will only be called if the ClientHello contained a
- * matching extension. */
- OPENSSL_EXPORT int SSL_CTX_add_server_custom_ext(
- SSL_CTX *ctx, unsigned extension_value, SSL_custom_ext_add_cb add_cb,
- SSL_custom_ext_free_cb free_cb, void *add_arg,
- SSL_custom_ext_parse_cb parse_cb, void *parse_arg);
-
-
- /* Sessions.
- *
- * An |SSL_SESSION| represents an SSL session that may be resumed in an
- * abbreviated handshake. It is reference-counted and immutable. Once
- * established, an |SSL_SESSION| may be shared by multiple |SSL| objects on
- * different threads and must not be modified. */
-
- DECLARE_LHASH_OF(SSL_SESSION)
- DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
-
- /* SSL_SESSION_new returns a newly-allocated blank |SSL_SESSION| or NULL on
- * error. This may be useful in writing tests but otherwise should not be
- * used outside the library. */
- OPENSSL_EXPORT SSL_SESSION *SSL_SESSION_new(void);
-
- /* SSL_SESSION_up_ref increments the reference count of |session| and returns
- * one. */
- OPENSSL_EXPORT int SSL_SESSION_up_ref(SSL_SESSION *session);
-
- /* SSL_SESSION_free decrements the reference count of |session|. If it reaches
- * zero, all data referenced by |session| and |session| itself are released. */
- OPENSSL_EXPORT void SSL_SESSION_free(SSL_SESSION *session);
-
- /* SSL_SESSION_to_bytes serializes |in| into a newly allocated buffer and sets
- * |*out_data| to that buffer and |*out_len| to its length. The caller takes
- * ownership of the buffer and must call |OPENSSL_free| when done. It returns
- * one on success and zero on error. */
- OPENSSL_EXPORT int SSL_SESSION_to_bytes(const SSL_SESSION *in,
- uint8_t **out_data, size_t *out_len);
-
- /* SSL_SESSION_to_bytes_for_ticket serializes |in|, but excludes the session
- * identification information, namely the session ID and ticket. */
- OPENSSL_EXPORT int SSL_SESSION_to_bytes_for_ticket(const SSL_SESSION *in,
- uint8_t **out_data,
- size_t *out_len);
-
- /* SSL_SESSION_from_bytes parses |in_len| bytes from |in| as an SSL_SESSION. It
- * returns a newly-allocated |SSL_SESSION| on success or NULL on error. */
- OPENSSL_EXPORT SSL_SESSION *SSL_SESSION_from_bytes(const uint8_t *in,
- size_t in_len);
-
- /* SSL_SESSION_get_version returns a string describing the TLS version |session|
- * was established at. For example, "TLSv1.2" or "SSLv3". */
- OPENSSL_EXPORT const char *SSL_SESSION_get_version(const SSL_SESSION *session);
-
- /* SSL_SESSION_get_id returns a pointer to a buffer containg |session|'s session
- * ID and sets |*out_len| to its length. */
- OPENSSL_EXPORT const uint8_t *SSL_SESSION_get_id(const SSL_SESSION *session,
- unsigned *out_len);
-
- /* SSL_SESSION_get_time returns the time at which |session| was established in
- * seconds since the UNIX epoch. */
- OPENSSL_EXPORT long SSL_SESSION_get_time(const SSL_SESSION *session);
-
- /* SSL_SESSION_get_timeout returns the lifetime of |session| in seconds. */
- OPENSSL_EXPORT long SSL_SESSION_get_timeout(const SSL_SESSION *session);
-
- /* SSL_SESSION_get0_peer return's the peer leaf certificate stored in
- * |session|.
- *
- * TODO(davidben): This should return a const X509 *. */
- OPENSSL_EXPORT X509 *SSL_SESSION_get0_peer(const SSL_SESSION *session);
-
- /* SSL_SESSION_get_master_key writes up to |max_out| bytes of |session|'s master
- * secret to |out| and returns the number of bytes written. If |max_out| is
- * zero, it returns the size of the master secret. */
- OPENSSL_EXPORT size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
- uint8_t *out, size_t max_out);
-
- /* SSL_SESSION_set_time sets |session|'s creation time to |time| and returns
- * |time|. This function may be useful in writing tests but otherwise should not
- * be used. */
- OPENSSL_EXPORT long SSL_SESSION_set_time(SSL_SESSION *session, long time);
-
- /* SSL_SESSION_set_timeout sets |session|'s timeout to |timeout| and returns
- * one. This function may be useful in writing tests but otherwise should not
- * be used. */
- OPENSSL_EXPORT long SSL_SESSION_set_timeout(SSL_SESSION *session, long timeout);
-
- /* SSL_SESSION_set1_id_context sets |session|'s session ID context (see
- * |SSL_CTX_set_session_id_context|) to |sid_ctx|. It returns one on success and
- * zero on error. This function may be useful in writing tests but otherwise
- * should not be used. */
- OPENSSL_EXPORT int SSL_SESSION_set1_id_context(SSL_SESSION *session,
- const uint8_t *sid_ctx,
- size_t sid_ctx_len);
-
-
- /* Session caching.
- *
- * Session caching allows clients to reconnect to a server based on saved
- * parameters from a previous connection.
- *
- * For a server, the library implements a built-in internal session cache as an
- * in-memory hash table. One may also register callbacks to implement a custom
- * external session cache. An external cache may be used in addition to or
- * instead of the internal one. Use |SSL_CTX_set_session_cache_mode| to toggle
- * the internal cache.
- *
- * For a client, the only option is an external session cache. Prior to
- * handshaking, the consumer should look up a session externally (keyed, for
- * instance, by hostname) and use |SSL_set_session| to configure which session
- * to offer. The callbacks may be used to determine when new sessions are
- * available.
- *
- * Note that offering or accepting a session short-circuits most parameter
- * negotiation. Resuming sessions across different configurations may result in
- * surprising behavor. So, for instance, a client implementing a version
- * fallback should shard its session cache by maximum protocol version. */
-
- /* SSL_SESS_CACHE_OFF disables all session caching. */
- #define SSL_SESS_CACHE_OFF 0x0000
-
- /* SSL_SESS_CACHE_CLIENT enables session caching for a client. The internal
- * cache is never used on a client, so this only enables the callbacks. */
- #define SSL_SESS_CACHE_CLIENT 0x0001
-
- /* SSL_SESS_CACHE_SERVER enables session caching for a server. */
- #define SSL_SESS_CACHE_SERVER 0x0002
-
- /* SSL_SESS_CACHE_BOTH enables session caching for both client and server. */
- #define SSL_SESS_CACHE_BOTH (SSL_SESS_CACHE_CLIENT | SSL_SESS_CACHE_SERVER)
-
- /* SSL_SESS_CACHE_NO_AUTO_CLEAR disables automatically calling
- * |SSL_CTX_flush_sessions| every 255 connections. */
- #define SSL_SESS_CACHE_NO_AUTO_CLEAR 0x0080
-
- /* SSL_SESS_CACHE_NO_INTERNAL_LOOKUP, on a server, disables looking up a session
- * from the internal session cache. */
- #define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 0x0100
-
- /* SSL_SESS_CACHE_NO_INTERNAL_STORE, on a server, disables storing sessions in
- * the internal session cache. */
- #define SSL_SESS_CACHE_NO_INTERNAL_STORE 0x0200
-
- /* SSL_SESS_CACHE_NO_INTERNAL, on a server, disables the internal session
- * cache. */
- #define SSL_SESS_CACHE_NO_INTERNAL \
- (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP | SSL_SESS_CACHE_NO_INTERNAL_STORE)
-
- /* SSL_CTX_set_session_cache_mode sets the session cache mode bits for |ctx| to
- * |mode|. It returns the previous value. */
- OPENSSL_EXPORT int SSL_CTX_set_session_cache_mode(SSL_CTX *ctx, int mode);
-
- /* SSL_CTX_get_session_cache_mode returns the session cache mode bits for
- * |ctx| */
- OPENSSL_EXPORT int SSL_CTX_get_session_cache_mode(const SSL_CTX *ctx);
-
- /* SSL_set_session, for a client, configures |ssl| to offer to resume |session|
- * in the initial handshake and returns one. The caller retains ownership of
- * |session|.
- *
- * It is an error to call this function after the handshake has begun. */
- OPENSSL_EXPORT int SSL_set_session(SSL *ssl, SSL_SESSION *session);
-
- /* SSL_get_session returns a non-owning pointer to |ssl|'s session. For
- * historical reasons, which session it returns depends on |ssl|'s state.
- *
- * Prior to the start of the initial handshake, it returns the session the
- * caller set with |SSL_set_session|. After the initial handshake has finished
- * and if no additional handshakes are in progress, it returns the currently
- * active session. Its behavior is undefined while a handshake is in progress.
- *
- * Using this function to add new sessions to an external session cache is
- * deprecated. Use |SSL_CTX_sess_set_new_cb| instead. */
- OPENSSL_EXPORT SSL_SESSION *SSL_get_session(const SSL *ssl);
-
- /* SSL_get0_session is an alias for |SSL_get_session|. */
- #define SSL_get0_session SSL_get_session
-
- /* SSL_get1_session acts like |SSL_get_session| but returns a new reference to
- * the session. */
- OPENSSL_EXPORT SSL_SESSION *SSL_get1_session(SSL *ssl);
-
- /* SSL_DEFAULT_SESSION_TIMEOUT is the default lifetime, in seconds, of a
- * session. */
- #define SSL_DEFAULT_SESSION_TIMEOUT (2 * 60 * 60)
-
- /* SSL_CTX_set_timeout sets the lifetime, in seconds, of sessions created in
- * |ctx| to |timeout|. */
- OPENSSL_EXPORT long SSL_CTX_set_timeout(SSL_CTX *ctx, long timeout);
-
- /* SSL_CTX_get_timeout returns the lifetime, in seconds, of sessions created in
- * |ctx|. */
- OPENSSL_EXPORT long SSL_CTX_get_timeout(const SSL_CTX *ctx);
-
- /* SSL_set_session_timeout sets the default lifetime, in seconds, of the
- * session created in |ssl| to |timeout|, and returns the old value.
- *
- * By default the value |SSL_DEFAULT_SESSION_TIMEOUT| is used, which can be
- * overridden at the context level by calling |SSL_CTX_set_timeout|.
- *
- * If |timeout| is zero the newly created session will not be resumable. */
- OPENSSL_EXPORT long SSL_set_session_timeout(SSL *ssl, long timeout);
-
- /* SSL_CTX_set_session_id_context sets |ctx|'s session ID context to |sid_ctx|.
- * It returns one on success and zero on error. The session ID context is an
- * application-defined opaque byte string. A session will not be used in a
- * connection without a matching session ID context.
- *
- * For a server, if |SSL_VERIFY_PEER| is enabled, it is an error to not set a
- * session ID context.
- *
- * TODO(davidben): Is that check needed? That seems a special case of taking
- * care not to cross-resume across configuration changes, and this is only
- * relevant if a server requires client auth. */
- OPENSSL_EXPORT int SSL_CTX_set_session_id_context(SSL_CTX *ctx,
- const uint8_t *sid_ctx,
- size_t sid_ctx_len);
-
- /* SSL_set_session_id_context sets |ssl|'s session ID context to |sid_ctx|. It
- * returns one on success and zero on error. See also
- * |SSL_CTX_set_session_id_context|. */
- OPENSSL_EXPORT int SSL_set_session_id_context(SSL *ssl, const uint8_t *sid_ctx,
- size_t sid_ctx_len);
-
- /* SSL_SESSION_CACHE_MAX_SIZE_DEFAULT is the default maximum size of a session
- * cache. */
- #define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT (1024 * 20)
-
- /* SSL_CTX_sess_set_cache_size sets the maximum size of |ctx|'s internal session
- * cache to |size|. It returns the previous value. */
- OPENSSL_EXPORT unsigned long SSL_CTX_sess_set_cache_size(SSL_CTX *ctx,
- unsigned long size);
-
- /* SSL_CTX_sess_get_cache_size returns the maximum size of |ctx|'s internal
- * session cache. */
- OPENSSL_EXPORT unsigned long SSL_CTX_sess_get_cache_size(const SSL_CTX *ctx);
-
- /* SSL_CTX_sessions returns |ctx|'s internal session cache. */
- OPENSSL_EXPORT LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx);
-
- /* SSL_CTX_sess_number returns the number of sessions in |ctx|'s internal
- * session cache. */
- OPENSSL_EXPORT size_t SSL_CTX_sess_number(const SSL_CTX *ctx);
-
- /* SSL_CTX_add_session inserts |session| into |ctx|'s internal session cache. It
- * returns one on success and zero on error or if |session| is already in the
- * cache. The caller retains its reference to |session|. */
- OPENSSL_EXPORT int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *session);
-
- /* SSL_CTX_remove_session removes |session| from |ctx|'s internal session cache.
- * It returns one on success and zero if |session| was not in the cache. */
- OPENSSL_EXPORT int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *session);
-
- /* SSL_CTX_flush_sessions removes all sessions from |ctx| which have expired as
- * of time |time|. If |time| is zero, all sessions are removed. */
- OPENSSL_EXPORT void SSL_CTX_flush_sessions(SSL_CTX *ctx, long time);
-
- /* SSL_CTX_sess_set_new_cb sets the callback to be called when a new session is
- * established and ready to be cached. If the session cache is disabled (the
- * appropriate one of |SSL_SESS_CACHE_CLIENT| or |SSL_SESS_CACHE_SERVER| is
- * unset), the callback is not called.
- *
- * The callback is passed a reference to |session|. It returns one if it takes
- * ownership and zero otherwise.
- *
- * Note: For a client, the callback may be called on abbreviated handshakes if a
- * ticket is renewed. Further, it may not be called until some time after
- * |SSL_do_handshake| or |SSL_connect| completes if False Start is enabled. Thus
- * it's recommended to use this callback over checking |SSL_session_reused| on
- * handshake completion.
- *
- * TODO(davidben): Conditioning callbacks on |SSL_SESS_CACHE_CLIENT| or
- * |SSL_SESS_CACHE_SERVER| doesn't make any sense when one could just as easily
- * not supply the callbacks. Removing that condition and the client internal
- * cache would simplify things. */
- OPENSSL_EXPORT void SSL_CTX_sess_set_new_cb(
- SSL_CTX *ctx, int (*new_session_cb)(SSL *ssl, SSL_SESSION *session));
-
- /* SSL_CTX_sess_get_new_cb returns the callback set by
- * |SSL_CTX_sess_set_new_cb|. */
- OPENSSL_EXPORT int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx))(
- SSL *ssl, SSL_SESSION *session);
-
- /* SSL_CTX_sess_set_remove_cb sets a callback which is called when a session is
- * removed from the internal session cache.
- *
- * TODO(davidben): What is the point of this callback? It seems useless since it
- * only fires on sessions in the internal cache. */
- OPENSSL_EXPORT void SSL_CTX_sess_set_remove_cb(
- SSL_CTX *ctx,
- void (*remove_session_cb)(SSL_CTX *ctx, SSL_SESSION *session));
-
- /* SSL_CTX_sess_get_remove_cb returns the callback set by
- * |SSL_CTX_sess_set_remove_cb|. */
- OPENSSL_EXPORT void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx))(
- SSL_CTX *ctx, SSL_SESSION *session);
-
- /* SSL_CTX_sess_set_get_cb sets a callback to look up a session by ID for a
- * server. The callback is passed the session ID and should return a matching
- * |SSL_SESSION| or NULL if not found. It should set |*out_copy| to zero and
- * return a new reference to the session. This callback is not used for a
- * client.
- *
- * For historical reasons, if |*out_copy| is set to one (default), the SSL
- * library will take a new reference to the returned |SSL_SESSION|, expecting
- * the callback to return a non-owning pointer. This is not recommended. If
- * |ctx| and thus the callback is used on multiple threads, the session may be
- * removed and invalidated before the SSL library calls |SSL_SESSION_up_ref|,
- * whereas the callback may synchronize internally.
- *
- * To look up a session asynchronously, the callback may return
- * |SSL_magic_pending_session_ptr|. See the documentation for that function and
- * |SSL_ERROR_PENDING_SESSION|.
- *
- * If the internal session cache is enabled, the callback is only consulted if
- * the internal cache does not return a match.
- *
- * The callback's |id| parameter is not const for historical reasons, but the
- * contents may not be modified. */
- OPENSSL_EXPORT void SSL_CTX_sess_set_get_cb(
- SSL_CTX *ctx,
- SSL_SESSION *(*get_session_cb)(SSL *ssl, uint8_t *id, int id_len,
- int *out_copy));
-
- /* SSL_CTX_sess_get_get_cb returns the callback set by
- * |SSL_CTX_sess_set_get_cb|. */
- OPENSSL_EXPORT SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx))(
- SSL *ssl, uint8_t *id, int id_len, int *out_copy);
-
- /* SSL_magic_pending_session_ptr returns a magic |SSL_SESSION|* which indicates
- * that the session isn't currently unavailable. |SSL_get_error| will then
- * return |SSL_ERROR_PENDING_SESSION| and the handshake can be retried later
- * when the lookup has completed. */
- OPENSSL_EXPORT SSL_SESSION *SSL_magic_pending_session_ptr(void);
-
-
- /* Session tickets.
- *
- * Session tickets, from RFC 5077, allow session resumption without server-side
- * state. Session tickets are supported in by default but may be disabled with
- * |SSL_OP_NO_TICKET|.
- *
- * On the client, ticket-based sessions use the same APIs as ID-based tickets.
- * Callers do not need to handle them differently.
- *
- * On the server, tickets are encrypted and authenticated with a secret key. By
- * default, an |SSL_CTX| generates a key on creation. Tickets are minted and
- * processed transparently. The following functions may be used to configure a
- * persistent key or implement more custom behavior. */
-
- /* SSL_CTX_get_tlsext_ticket_keys writes |ctx|'s session ticket key material to
- * |len| bytes of |out|. It returns one on success and zero if |len| is not
- * 48. If |out| is NULL, it returns 48 instead. */
- OPENSSL_EXPORT int SSL_CTX_get_tlsext_ticket_keys(SSL_CTX *ctx, void *out,
- size_t len);
-
- /* SSL_CTX_set_tlsext_ticket_keys sets |ctx|'s session ticket key material to
- * |len| bytes of |in|. It returns one on success and zero if |len| is not
- * 48. If |in| is NULL, it returns 48 instead. */
- OPENSSL_EXPORT int SSL_CTX_set_tlsext_ticket_keys(SSL_CTX *ctx, const void *in,
- size_t len);
-
- /* SSL_TICKET_KEY_NAME_LEN is the length of the key name prefix of a session
- * ticket. */
- #define SSL_TICKET_KEY_NAME_LEN 16
-
- /* SSL_CTX_set_tlsext_ticket_key_cb sets the ticket callback to |callback| and
- * returns one. |callback| will be called when encrypting a new ticket and when
- * decrypting a ticket from the client.
- *
- * In both modes, |ctx| and |hmac_ctx| will already have been initialized with
- * |EVP_CIPHER_CTX_init| and |HMAC_CTX_init|, respectively. |callback|
- * configures |hmac_ctx| with an HMAC digest and key, and configures |ctx|
- * for encryption or decryption, based on the mode.
- *
- * When encrypting a new ticket, |encrypt| will be one. It writes a public
- * 16-byte key name to |key_name| and a fresh IV to |iv|. The output IV length
- * must match |EVP_CIPHER_CTX_iv_length| of the cipher selected. In this mode,
- * |callback| returns 1 on success and -1 on error.
- *
- * When decrypting a ticket, |encrypt| will be zero. |key_name| will point to a
- * 16-byte key name and |iv| points to an IV. The length of the IV consumed must
- * match |EVP_CIPHER_CTX_iv_length| of the cipher selected. In this mode,
- * |callback| returns -1 to abort the handshake, 0 if decrypting the ticket
- * failed, and 1 or 2 on success. If it returns 2, the ticket will be renewed.
- * This may be used to re-key the ticket.
- *
- * WARNING: |callback| wildly breaks the usual return value convention and is
- * called in two different modes. */
- OPENSSL_EXPORT int SSL_CTX_set_tlsext_ticket_key_cb(
- SSL_CTX *ctx, int (*callback)(SSL *ssl, uint8_t *key_name, uint8_t *iv,
- EVP_CIPHER_CTX *ctx, HMAC_CTX *hmac_ctx,
- int encrypt));
-
-
- /* Elliptic curve Diffie-Hellman.
- *
- * Cipher suites using an ECDHE key exchange perform Diffie-Hellman over an
- * elliptic curve negotiated by both endpoints. See RFC 4492. Only named curves
- * are supported. ECDHE is always enabled, but the curve preferences may be
- * configured with these functions.
- *
- * Note that TLS 1.3 renames these from curves to groups. For consistency, we
- * currently use the TLS 1.2 name in the API. */
-
- /* SSL_CTX_set1_curves sets the preferred curves for |ctx| to be |curves|. Each
- * element of |curves| should be a curve nid. It returns one on success and
- * zero on failure.
- *
- * Note that this API uses nid values from nid.h and not the |SSL_CURVE_*|
- * values defined below. */
- OPENSSL_EXPORT int SSL_CTX_set1_curves(SSL_CTX *ctx, const int *curves,
- size_t curves_len);
-
- /* SSL_set1_curves sets the preferred curves for |ssl| to be |curves|. Each
- * element of |curves| should be a curve nid. It returns one on success and
- * zero on failure.
- *
- * Note that this API uses nid values from nid.h and not the |SSL_CURVE_*|
- * values defined below. */
- OPENSSL_EXPORT int SSL_set1_curves(SSL *ssl, const int *curves,
- size_t curves_len);
-
- /* SSL_CTX_set1_curves_list sets the preferred curves for |ctx| to be the
- * colon-separated list |curves|. Each element of |curves| should be a curve
- * name (e.g. P-256, X25519, ...). It returns one on success and zero on
- * failure. */
- OPENSSL_EXPORT int SSL_CTX_set1_curves_list(SSL_CTX *ctx, const char *curves);
-
- /* SSL_set1_curves_list sets the preferred curves for |ssl| to be the
- * colon-separated list |curves|. Each element of |curves| should be a curve
- * name (e.g. P-256, X25519, ...). It returns one on success and zero on
- * failure. */
- OPENSSL_EXPORT int SSL_set1_curves_list(SSL *ssl, const char *curves);
-
- /* SSL_CURVE_* define TLS curve IDs. */
- #define SSL_CURVE_SECP256R1 23
- #define SSL_CURVE_SECP384R1 24
- #define SSL_CURVE_SECP521R1 25
- #define SSL_CURVE_X25519 29
-
- /* SSL_get_curve_id returns the ID of the curve used by |ssl|'s most recently
- * completed handshake or 0 if not applicable.
- *
- * TODO(davidben): This API currently does not work correctly if there is a
- * renegotiation in progress. Fix this. */
- OPENSSL_EXPORT uint16_t SSL_get_curve_id(const SSL *ssl);
-
- /* SSL_get_curve_name returns a human-readable name for the curve specified by
- * the given TLS curve id, or NULL if the curve is unknown. */
- OPENSSL_EXPORT const char *SSL_get_curve_name(uint16_t curve_id);
-
-
- /* Multiplicative Diffie-Hellman.
- *
- * Cipher suites using a DHE key exchange perform Diffie-Hellman over a
- * multiplicative group selected by the server. These ciphers are disabled for a
- * server unless a group is chosen with one of these functions. */
-
- /* SSL_CTX_set_tmp_dh configures |ctx| to use the group from |dh| as the group
- * for DHE. Only the group is used, so |dh| needn't have a keypair. It returns
- * one on success and zero on error. */
- OPENSSL_EXPORT int SSL_CTX_set_tmp_dh(SSL_CTX *ctx, const DH *dh);
-
- /* SSL_set_tmp_dh configures |ssl| to use the group from |dh| as the group for
- * DHE. Only the group is used, so |dh| needn't have a keypair. It returns one
- * on success and zero on error. */
- OPENSSL_EXPORT int SSL_set_tmp_dh(SSL *ssl, const DH *dh);
-
- /* SSL_CTX_set_tmp_dh_callback configures |ctx| to use |callback| to determine
- * the group for DHE ciphers. |callback| should ignore |is_export| and
- * |keylength| and return a |DH| of the selected group or NULL on error. Only
- * the parameters are used, so the |DH| needn't have a generated keypair.
- *
- * WARNING: The caller does not take ownership of the resulting |DH|, so
- * |callback| must save and release the object elsewhere. */
- OPENSSL_EXPORT void SSL_CTX_set_tmp_dh_callback(
- SSL_CTX *ctx, DH *(*callback)(SSL *ssl, int is_export, int keylength));
-
- /* SSL_set_tmp_dh_callback configures |ssl| to use |callback| to determine the
- * group for DHE ciphers. |callback| should ignore |is_export| and |keylength|
- * and return a |DH| of the selected group or NULL on error. Only the
- * parameters are used, so the |DH| needn't have a generated keypair.
- *
- * WARNING: The caller does not take ownership of the resulting |DH|, so
- * |callback| must save and release the object elsewhere. */
- OPENSSL_EXPORT void SSL_set_tmp_dh_callback(SSL *ssl,
- DH *(*dh)(SSL *ssl, int is_export,
- int keylength));
-
-
- /* Certificate verification.
- *
- * SSL may authenticate either endpoint with an X.509 certificate. Typically
- * this is used to authenticate the server to the client. These functions
- * configure certificate verification.
- *
- * WARNING: By default, certificate verification errors on a client are not
- * fatal. See |SSL_VERIFY_NONE| This may be configured with
- * |SSL_CTX_set_verify|.
- *
- * By default clients are anonymous but a server may request a certificate from
- * the client by setting |SSL_VERIFY_PEER|.
- *
- * Many of these functions use OpenSSL's legacy X.509 stack which is
- * underdocumented and deprecated, but the replacement isn't ready yet. For
- * now, consumers may use the existing stack or bypass it by performing
- * certificate verification externally. This may be done with
- * |SSL_CTX_set_cert_verify_callback| or by extracting the chain with
- * |SSL_get_peer_cert_chain| after the handshake. In the future, functions will
- * be added to use the SSL stack without dependency on any part of the legacy
- * X.509 and ASN.1 stack.
- *
- * To augment certificate verification, a client may also enable OCSP stapling
- * (RFC 6066) and Certificate Transparency (RFC 6962) extensions. */
-
- /* SSL_VERIFY_NONE, on a client, verifies the server certificate but does not
- * make errors fatal. The result may be checked with |SSL_get_verify_result|. On
- * a server it does not request a client certificate. This is the default. */
- #define SSL_VERIFY_NONE 0x00
-
- /* SSL_VERIFY_PEER, on a client, makes server certificate errors fatal. On a
- * server it requests a client certificate and makes errors fatal. However,
- * anonymous clients are still allowed. See
- * |SSL_VERIFY_FAIL_IF_NO_PEER_CERT|. */
- #define SSL_VERIFY_PEER 0x01
-
- /* SSL_VERIFY_FAIL_IF_NO_PEER_CERT configures a server to reject connections if
- * the client declines to send a certificate. Otherwise |SSL_VERIFY_PEER| still
- * allows anonymous clients. */
- #define SSL_VERIFY_FAIL_IF_NO_PEER_CERT 0x02
-
- /* SSL_VERIFY_PEER_IF_NO_OBC configures a server to request a client certificate
- * if and only if Channel ID is not negotiated. */
- #define SSL_VERIFY_PEER_IF_NO_OBC 0x04
-
- /* SSL_CTX_set_verify configures certificate verification behavior. |mode| is
- * one of the |SSL_VERIFY_*| values defined above. |callback|, if not NULL, is
- * used to customize certificate verification. See the behavior of
- * |X509_STORE_CTX_set_verify_cb|.
- *
- * The callback may use |SSL_get_ex_data_X509_STORE_CTX_idx| with
- * |X509_STORE_CTX_get_ex_data| to look up the |SSL| from |store_ctx|. */
- OPENSSL_EXPORT void SSL_CTX_set_verify(
- SSL_CTX *ctx, int mode, int (*callback)(int ok, X509_STORE_CTX *store_ctx));
-
- /* SSL_set_verify configures certificate verification behavior. |mode| is one of
- * the |SSL_VERIFY_*| values defined above. |callback|, if not NULL, is used to
- * customize certificate verification. See the behavior of
- * |X509_STORE_CTX_set_verify_cb|.
- *
- * The callback may use |SSL_get_ex_data_X509_STORE_CTX_idx| with
- * |X509_STORE_CTX_get_ex_data| to look up the |SSL| from |store_ctx|. */
- OPENSSL_EXPORT void SSL_set_verify(SSL *ssl, int mode,
- int (*callback)(int ok,
- X509_STORE_CTX *store_ctx));
-
- /* SSL_CTX_get_verify_mode returns |ctx|'s verify mode, set by
- * |SSL_CTX_set_verify|. */
- OPENSSL_EXPORT int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
-
- /* SSL_get_verify_mode returns |ssl|'s verify mode, set by |SSL_CTX_set_verify|
- * or |SSL_set_verify|. */
- OPENSSL_EXPORT int SSL_get_verify_mode(const SSL *ssl);
-
- /* SSL_CTX_get_verify_callback returns the callback set by
- * |SSL_CTX_set_verify|. */
- OPENSSL_EXPORT int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(
- int ok, X509_STORE_CTX *store_ctx);
-
- /* SSL_get_verify_callback returns the callback set by |SSL_CTX_set_verify| or
- * |SSL_set_verify|. */
- OPENSSL_EXPORT int (*SSL_get_verify_callback(const SSL *ssl))(
- int ok, X509_STORE_CTX *store_ctx);
-
- /* SSL_CTX_set_verify_depth sets the maximum depth of a certificate chain
- * accepted in verification. This number does not include the leaf, so a depth
- * of 1 allows the leaf and one CA certificate. */
- OPENSSL_EXPORT void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth);
-
- /* SSL_set_verify_depth sets the maximum depth of a certificate chain accepted
- * in verification. This number does not include the leaf, so a depth of 1
- * allows the leaf and one CA certificate. */
- OPENSSL_EXPORT void SSL_set_verify_depth(SSL *ssl, int depth);
-
- /* SSL_CTX_get_verify_depth returns the maximum depth of a certificate accepted
- * in verification. */
- OPENSSL_EXPORT int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
-
- /* SSL_get_verify_depth returns the maximum depth of a certificate accepted in
- * verification. */
- OPENSSL_EXPORT int SSL_get_verify_depth(const SSL *ssl);
-
- /* SSL_CTX_set1_param sets verification parameters from |param|. It returns one
- * on success and zero on failure. The caller retains ownership of |param|. */
- OPENSSL_EXPORT int SSL_CTX_set1_param(SSL_CTX *ctx,
- const X509_VERIFY_PARAM *param);
-
- /* SSL_set1_param sets verification parameters from |param|. It returns one on
- * success and zero on failure. The caller retains ownership of |param|. */
- OPENSSL_EXPORT int SSL_set1_param(SSL *ssl,
- const X509_VERIFY_PARAM *param);
-
- /* SSL_CTX_get0_param returns |ctx|'s |X509_VERIFY_PARAM| for certificate
- * verification. The caller must not release the returned pointer but may call
- * functions on it to configure it. */
- OPENSSL_EXPORT X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
-
- /* SSL_get0_param returns |ssl|'s |X509_VERIFY_PARAM| for certificate
- * verification. The caller must not release the returned pointer but may call
- * functions on it to configure it. */
- OPENSSL_EXPORT X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
-
- /* SSL_CTX_set_purpose sets |ctx|'s |X509_VERIFY_PARAM|'s 'purpose' parameter to
- * |purpose|. It returns one on success and zero on error. */
- OPENSSL_EXPORT int SSL_CTX_set_purpose(SSL_CTX *ctx, int purpose);
-
- /* SSL_set_purpose sets |ssl|'s |X509_VERIFY_PARAM|'s 'purpose' parameter to
- * |purpose|. It returns one on success and zero on error. */
- OPENSSL_EXPORT int SSL_set_purpose(SSL *ssl, int purpose);
-
- /* SSL_CTX_set_trust sets |ctx|'s |X509_VERIFY_PARAM|'s 'trust' parameter to
- * |trust|. It returns one on success and zero on error. */
- OPENSSL_EXPORT int SSL_CTX_set_trust(SSL_CTX *ctx, int trust);
-
- /* SSL_set_trust sets |ssl|'s |X509_VERIFY_PARAM|'s 'trust' parameter to
- * |trust|. It returns one on success and zero on error. */
- OPENSSL_EXPORT int SSL_set_trust(SSL *ssl, int trust);
-
- /* SSL_CTX_set_cert_store sets |ctx|'s certificate store to |store|. It takes
- * ownership of |store|. The store is used for certificate verification.
- *
- * The store is also used for the auto-chaining feature, but this is deprecated.
- * See also |SSL_MODE_NO_AUTO_CHAIN|. */
- OPENSSL_EXPORT void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store);
-
- /* SSL_CTX_get_cert_store returns |ctx|'s certificate store. */
- OPENSSL_EXPORT X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx);
-
- /* SSL_CTX_set_default_verify_paths loads the OpenSSL system-default trust
- * anchors into |ctx|'s store. It returns one on success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
-
- /* SSL_CTX_load_verify_locations loads trust anchors into |ctx|'s store from
- * |ca_file| and |ca_dir|, either of which may be NULL. If |ca_file| is passed,
- * it is opened and PEM-encoded CA certificates are read. If |ca_dir| is passed,
- * it is treated as a directory in OpenSSL's hashed directory format. It returns
- * one on success and zero on failure.
- *
- * See
- * https://www.openssl.org/docs/manmaster/ssl/SSL_CTX_load_verify_locations.html
- * for documentation on the directory format. */
- OPENSSL_EXPORT int SSL_CTX_load_verify_locations(SSL_CTX *ctx,
- const char *ca_file,
- const char *ca_dir);
-
- /* SSL_get_verify_result returns the result of certificate verification. It is
- * either |X509_V_OK| or a |X509_V_ERR_*| value. */
- OPENSSL_EXPORT long SSL_get_verify_result(const SSL *ssl);
-
- /* SSL_get_ex_data_X509_STORE_CTX_idx returns the ex_data index used to look up
- * the |SSL| associated with an |X509_STORE_CTX| in the verify callback. */
- OPENSSL_EXPORT int SSL_get_ex_data_X509_STORE_CTX_idx(void);
-
- /* SSL_CTX_set_cert_verify_callback sets a custom callback to be called on
- * certificate verification rather than |X509_verify_cert|. |store_ctx| contains
- * the verification parameters. The callback should return one on success and
- * zero on fatal error. It may use |X509_STORE_CTX_set_error| to set a
- * verification result.
- *
- * The callback may use either the |arg| parameter or
- * |SSL_get_ex_data_X509_STORE_CTX_idx| to recover the associated |SSL|
- * object. */
- OPENSSL_EXPORT void SSL_CTX_set_cert_verify_callback(
- SSL_CTX *ctx, int (*callback)(X509_STORE_CTX *store_ctx, void *arg),
- void *arg);
-
- /* SSL_enable_signed_cert_timestamps causes |ssl| (which must be the client end
- * of a connection) to request SCTs from the server. See
- * https://tools.ietf.org/html/rfc6962. It returns one.
- *
- * Call |SSL_get0_signed_cert_timestamp_list| to recover the SCT after the
- * handshake. */
- OPENSSL_EXPORT int SSL_enable_signed_cert_timestamps(SSL *ssl);
-
- /* SSL_CTX_enable_signed_cert_timestamps enables SCT requests on all client SSL
- * objects created from |ctx|.
- *
- * Call |SSL_get0_signed_cert_timestamp_list| to recover the SCT after the
- * handshake. */
- OPENSSL_EXPORT void SSL_CTX_enable_signed_cert_timestamps(SSL_CTX *ctx);
-
- /* SSL_enable_ocsp_stapling causes |ssl| (which must be the client end of a
- * connection) to request a stapled OCSP response from the server. It returns
- * one.
- *
- * Call |SSL_get0_ocsp_response| to recover the OCSP response after the
- * handshake. */
- OPENSSL_EXPORT int SSL_enable_ocsp_stapling(SSL *ssl);
-
- /* SSL_CTX_enable_ocsp_stapling enables OCSP stapling on all client SSL objects
- * created from |ctx|.
- *
- * Call |SSL_get0_ocsp_response| to recover the OCSP response after the
- * handshake. */
- OPENSSL_EXPORT void SSL_CTX_enable_ocsp_stapling(SSL_CTX *ctx);
-
- /* SSL_CTX_set0_verify_cert_store sets an |X509_STORE| that will be used
- * exclusively for certificate verification and returns one. Ownership of
- * |store| is transferred to the |SSL_CTX|. */
- OPENSSL_EXPORT int SSL_CTX_set0_verify_cert_store(SSL_CTX *ctx,
- X509_STORE *store);
-
- /* SSL_CTX_set1_verify_cert_store sets an |X509_STORE| that will be used
- * exclusively for certificate verification and returns one. An additional
- * reference to |store| will be taken. */
- OPENSSL_EXPORT int SSL_CTX_set1_verify_cert_store(SSL_CTX *ctx,
- X509_STORE *store);
-
- /* SSL_set0_verify_cert_store sets an |X509_STORE| that will be used
- * exclusively for certificate verification and returns one. Ownership of
- * |store| is transferred to the |SSL|. */
- OPENSSL_EXPORT int SSL_set0_verify_cert_store(SSL *ssl, X509_STORE *store);
-
- /* SSL_set1_verify_cert_store sets an |X509_STORE| that will be used
- * exclusively for certificate verification and returns one. An additional
- * reference to |store| will be taken. */
- OPENSSL_EXPORT int SSL_set1_verify_cert_store(SSL *ssl, X509_STORE *store);
-
-
- /* Client certificate CA list.
- *
- * When requesting a client certificate, a server may advertise a list of
- * certificate authorities which are accepted. These functions may be used to
- * configure this list. */
-
- /* SSL_set_client_CA_list sets |ssl|'s client certificate CA list to
- * |name_list|. It takes ownership of |name_list|. */
- OPENSSL_EXPORT void SSL_set_client_CA_list(SSL *ssl,
- STACK_OF(X509_NAME) *name_list);
-
- /* SSL_CTX_set_client_CA_list sets |ctx|'s client certificate CA list to
- * |name_list|. It takes ownership of |name_list|. */
- OPENSSL_EXPORT void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,
- STACK_OF(X509_NAME) *name_list);
-
- /* SSL_get_client_CA_list returns |ssl|'s client certificate CA list. If |ssl|
- * has not been configured as a client, this is the list configured by
- * |SSL_CTX_set_client_CA_list|.
- *
- * If configured as a client, it returns the client certificate CA list sent by
- * the server. In this mode, the behavior is undefined except during the
- * callbacks set by |SSL_CTX_set_cert_cb| and |SSL_CTX_set_client_cert_cb| or
- * when the handshake is paused because of them. */
- OPENSSL_EXPORT STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *ssl);
-
- /* SSL_CTX_get_client_CA_list returns |ctx|'s client certificate CA list. */
- OPENSSL_EXPORT STACK_OF(X509_NAME) *
- SSL_CTX_get_client_CA_list(const SSL_CTX *ctx);
-
- /* SSL_add_client_CA appends |x509|'s subject to the client certificate CA list.
- * It returns one on success or zero on error. The caller retains ownership of
- * |x509|. */
- OPENSSL_EXPORT int SSL_add_client_CA(SSL *ssl, X509 *x509);
-
- /* SSL_CTX_add_client_CA appends |x509|'s subject to the client certificate CA
- * list. It returns one on success or zero on error. The caller retains
- * ownership of |x509|. */
- OPENSSL_EXPORT int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x509);
-
- /* SSL_load_client_CA_file opens |file| and reads PEM-encoded certificates from
- * it. It returns a newly-allocated stack of the certificate subjects or NULL
- * on error. */
- OPENSSL_EXPORT STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
-
- /* SSL_dup_CA_list makes a deep copy of |list|. It returns the new list on
- * success or NULL on allocation error. */
- OPENSSL_EXPORT STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *list);
-
- /* SSL_add_file_cert_subjects_to_stack behaves like |SSL_load_client_CA_file|
- * but appends the result to |out|. It returns one on success or zero on
- * error. */
- OPENSSL_EXPORT int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *out,
- const char *file);
-
-
- /* Server name indication.
- *
- * The server_name extension (RFC 3546) allows the client to advertise the name
- * of the server it is connecting to. This is used in virtual hosting
- * deployments to select one of a several certificates on a single IP. Only the
- * host_name name type is supported. */
-
- #define TLSEXT_NAMETYPE_host_name 0
-
- /* SSL_set_tlsext_host_name, for a client, configures |ssl| to advertise |name|
- * in the server_name extension. It returns one on success and zero on error. */
- OPENSSL_EXPORT int SSL_set_tlsext_host_name(SSL *ssl, const char *name);
-
- /* SSL_get_servername, for a server, returns the hostname supplied by the
- * client or NULL if there was none. The |type| argument must be
- * |TLSEXT_NAMETYPE_host_name|. */
- OPENSSL_EXPORT const char *SSL_get_servername(const SSL *ssl, const int type);
-
- /* SSL_get_servername_type, for a server, returns |TLSEXT_NAMETYPE_host_name|
- * if the client sent a hostname and -1 otherwise. */
- OPENSSL_EXPORT int SSL_get_servername_type(const SSL *ssl);
-
- /* SSL_CTX_set_tlsext_servername_callback configures |callback| to be called on
- * the server after ClientHello extensions have been parsed and returns one.
- * The callback may use |SSL_get_servername| to examine the server_name
- * extension and returns a |SSL_TLSEXT_ERR_*| value. The value of |arg| may be
- * set by calling |SSL_CTX_set_tlsext_servername_arg|.
- *
- * If the callback returns |SSL_TLSEXT_ERR_NOACK|, the server_name extension is
- * not acknowledged in the ServerHello. If the return value is
- * |SSL_TLSEXT_ERR_ALERT_FATAL| or |SSL_TLSEXT_ERR_ALERT_WARNING| then
- * |*out_alert| must be set to the alert value to send. */
- OPENSSL_EXPORT int SSL_CTX_set_tlsext_servername_callback(
- SSL_CTX *ctx, int (*callback)(SSL *ssl, int *out_alert, void *arg));
-
- /* SSL_CTX_set_tlsext_servername_arg sets the argument to the servername
- * callback and returns one. See |SSL_CTX_set_tlsext_servername_callback|. */
- OPENSSL_EXPORT int SSL_CTX_set_tlsext_servername_arg(SSL_CTX *ctx, void *arg);
-
- /* SSL_TLSEXT_ERR_* are values returned by some extension-related callbacks. */
- #define SSL_TLSEXT_ERR_OK 0
- #define SSL_TLSEXT_ERR_ALERT_WARNING 1
- #define SSL_TLSEXT_ERR_ALERT_FATAL 2
- #define SSL_TLSEXT_ERR_NOACK 3
-
-
- /* Application-layer protocol negotation.
- *
- * The ALPN extension (RFC 7301) allows negotiating different application-layer
- * protocols over a single port. This is used, for example, to negotiate
- * HTTP/2. */
-
- /* SSL_CTX_set_alpn_protos sets the client ALPN protocol list on |ctx| to
- * |protos|. |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
- * length-prefixed strings). It returns zero on success and one on failure.
- * Configuring this list enables ALPN on a client.
- *
- * WARNING: this function is dangerous because it breaks the usual return value
- * convention. */
- OPENSSL_EXPORT int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const uint8_t *protos,
- unsigned protos_len);
-
- /* SSL_set_alpn_protos sets the client ALPN protocol list on |ssl| to |protos|.
- * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
- * length-prefixed strings). It returns zero on success and one on failure.
- * Configuring this list enables ALPN on a client.
- *
- * WARNING: this function is dangerous because it breaks the usual return value
- * convention. */
- OPENSSL_EXPORT int SSL_set_alpn_protos(SSL *ssl, const uint8_t *protos,
- unsigned protos_len);
-
- /* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is called
- * during ClientHello processing in order to select an ALPN protocol from the
- * client's list of offered protocols. Configuring this callback enables ALPN on
- * a server.
- *
- * The callback is passed a wire-format (i.e. a series of non-empty, 8-bit
- * length-prefixed strings) ALPN protocol list in |in|. It should set |*out| and
- * |*out_len| to the selected protocol and return |SSL_TLSEXT_ERR_OK| on
- * success. It does not pass ownership of the buffer. Otherwise, it should
- * return |SSL_TLSEXT_ERR_NOACK|. Other |SSL_TLSEXT_ERR_*| values are
- * unimplemented and will be treated as |SSL_TLSEXT_ERR_NOACK|.
- *
- * The cipher suite is selected before negotiating ALPN. The callback may use
- * |SSL_get_pending_cipher| to query the cipher suite. */
- OPENSSL_EXPORT void SSL_CTX_set_alpn_select_cb(
- SSL_CTX *ctx, int (*cb)(SSL *ssl, const uint8_t **out, uint8_t *out_len,
- const uint8_t *in, unsigned in_len, void *arg),
- void *arg);
-
- /* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|.
- * On return it sets |*out_data| to point to |*out_len| bytes of protocol name
- * (not including the leading length-prefix byte). If the server didn't respond
- * with a negotiated protocol then |*out_len| will be zero. */
- OPENSSL_EXPORT void SSL_get0_alpn_selected(const SSL *ssl,
- const uint8_t **out_data,
- unsigned *out_len);
-
-
- /* Next protocol negotiation.
- *
- * The NPN extension (draft-agl-tls-nextprotoneg-03) is the predecessor to ALPN
- * and deprecated in favor of it. */
-
- /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
- * TLS server needs a list of supported protocols for Next Protocol
- * Negotiation. The returned list must be in wire format. The list is returned
- * by setting |*out| to point to it and |*out_len| to its length. This memory
- * will not be modified, but one should assume that |ssl| keeps a reference to
- * it.
- *
- * The callback should return |SSL_TLSEXT_ERR_OK| if it wishes to advertise.
- * Otherwise, no such extension will be included in the ServerHello. */
- OPENSSL_EXPORT void SSL_CTX_set_next_protos_advertised_cb(
- SSL_CTX *ctx,
- int (*cb)(SSL *ssl, const uint8_t **out, unsigned *out_len, void *arg),
- void *arg);
-
- /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a client
- * needs to select a protocol from the server's provided list. |*out| must be
- * set to point to the selected protocol (which may be within |in|). The length
- * of the protocol name must be written into |*out_len|. The server's advertised
- * protocols are provided in |in| and |in_len|. The callback can assume that
- * |in| is syntactically valid.
- *
- * The client must select a protocol. It is fatal to the connection if this
- * callback returns a value other than |SSL_TLSEXT_ERR_OK|.
- *
- * Configuring this callback enables NPN on a client. */
- OPENSSL_EXPORT void SSL_CTX_set_next_proto_select_cb(
- SSL_CTX *ctx, int (*cb)(SSL *ssl, uint8_t **out, uint8_t *out_len,
- const uint8_t *in, unsigned in_len, void *arg),
- void *arg);
-
- /* SSL_get0_next_proto_negotiated sets |*out_data| and |*out_len| to point to
- * the client's requested protocol for this connection. If the client didn't
- * request any protocol, then |*out_data| is set to NULL.
- *
- * Note that the client can request any protocol it chooses. The value returned
- * from this function need not be a member of the list of supported protocols
- * provided by the server. */
- OPENSSL_EXPORT void SSL_get0_next_proto_negotiated(const SSL *ssl,
- const uint8_t **out_data,
- unsigned *out_len);
-
- /* SSL_select_next_proto implements the standard protocol selection. It is
- * expected that this function is called from the callback set by
- * |SSL_CTX_set_next_proto_select_cb|.
- *
- * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
- * strings. The length byte itself is not included in the length. A byte
- * string of length 0 is invalid. No byte string may be truncated.
- *
- * The current, but experimental algorithm for selecting the protocol is:
- *
- * 1) If the server doesn't support NPN then this is indicated to the
- * callback. In this case, the client application has to abort the connection
- * or have a default application level protocol.
- *
- * 2) If the server supports NPN, but advertises an empty list then the
- * client selects the first protcol in its list, but indicates via the
- * API that this fallback case was enacted.
- *
- * 3) Otherwise, the client finds the first protocol in the server's list
- * that it supports and selects this protocol. This is because it's
- * assumed that the server has better information about which protocol
- * a client should use.
- *
- * 4) If the client doesn't support any of the server's advertised
- * protocols, then this is treated the same as case 2.
- *
- * It returns either |OPENSSL_NPN_NEGOTIATED| if a common protocol was found, or
- * |OPENSSL_NPN_NO_OVERLAP| if the fallback case was reached. */
- OPENSSL_EXPORT int SSL_select_next_proto(uint8_t **out, uint8_t *out_len,
- const uint8_t *server,
- unsigned server_len,
- const uint8_t *client,
- unsigned client_len);
-
- #define OPENSSL_NPN_UNSUPPORTED 0
- #define OPENSSL_NPN_NEGOTIATED 1
- #define OPENSSL_NPN_NO_OVERLAP 2
-
-
- /* Channel ID.
- *
- * See draft-balfanz-tls-channelid-01. */
-
- /* SSL_CTX_set_tls_channel_id_enabled configures whether connections associated
- * with |ctx| should enable Channel ID. */
- OPENSSL_EXPORT void SSL_CTX_set_tls_channel_id_enabled(SSL_CTX *ctx,
- int enabled);
-
- /* SSL_set_tls_channel_id_enabled configures whether |ssl| should enable Channel
- * ID. */
- OPENSSL_EXPORT void SSL_set_tls_channel_id_enabled(SSL *ssl, int enabled);
-
- /* SSL_CTX_set1_tls_channel_id configures a TLS client to send a TLS Channel ID
- * to compatible servers. |private_key| must be a P-256 EC key. It returns one
- * on success and zero on error. */
- OPENSSL_EXPORT int SSL_CTX_set1_tls_channel_id(SSL_CTX *ctx,
- EVP_PKEY *private_key);
-
- /* SSL_set1_tls_channel_id configures a TLS client to send a TLS Channel ID to
- * compatible servers. |private_key| must be a P-256 EC key. It returns one on
- * success and zero on error. */
- OPENSSL_EXPORT int SSL_set1_tls_channel_id(SSL *ssl, EVP_PKEY *private_key);
-
- /* SSL_get_tls_channel_id gets the client's TLS Channel ID from a server |SSL*|
- * and copies up to the first |max_out| bytes into |out|. The Channel ID
- * consists of the client's P-256 public key as an (x,y) pair where each is a
- * 32-byte, big-endian field element. It returns 0 if the client didn't offer a
- * Channel ID and the length of the complete Channel ID otherwise. */
- OPENSSL_EXPORT size_t SSL_get_tls_channel_id(SSL *ssl, uint8_t *out,
- size_t max_out);
-
- /* SSL_CTX_set_channel_id_cb sets a callback to be called when a TLS Channel ID
- * is requested. The callback may set |*out_pkey| to a key, passing a reference
- * to the caller. If none is returned, the handshake will pause and
- * |SSL_get_error| will return |SSL_ERROR_WANT_CHANNEL_ID_LOOKUP|.
- *
- * See also |SSL_ERROR_WANT_CHANNEL_ID_LOOKUP|. */
- OPENSSL_EXPORT void SSL_CTX_set_channel_id_cb(
- SSL_CTX *ctx, void (*channel_id_cb)(SSL *ssl, EVP_PKEY **out_pkey));
-
- /* SSL_CTX_get_channel_id_cb returns the callback set by
- * |SSL_CTX_set_channel_id_cb|. */
- OPENSSL_EXPORT void (*SSL_CTX_get_channel_id_cb(SSL_CTX *ctx))(
- SSL *ssl, EVP_PKEY **out_pkey);
-
-
- /* DTLS-SRTP.
- *
- * See RFC 5764. */
-
- /* srtp_protection_profile_st (aka |SRTP_PROTECTION_PROFILE|) is an SRTP
- * profile for use with the use_srtp extension. */
- struct srtp_protection_profile_st {
- const char *name;
- unsigned long id;
- } /* SRTP_PROTECTION_PROFILE */;
-
- DECLARE_STACK_OF(SRTP_PROTECTION_PROFILE)
-
- /* SRTP_* define constants for SRTP profiles. */
- #define SRTP_AES128_CM_SHA1_80 0x0001
- #define SRTP_AES128_CM_SHA1_32 0x0002
- #define SRTP_AES128_F8_SHA1_80 0x0003
- #define SRTP_AES128_F8_SHA1_32 0x0004
- #define SRTP_NULL_SHA1_80 0x0005
- #define SRTP_NULL_SHA1_32 0x0006
- #define SRTP_AEAD_AES_128_GCM 0x0007
- #define SRTP_AEAD_AES_256_GCM 0x0008
-
- /* SSL_CTX_set_srtp_profiles enables SRTP for all SSL objects created from
- * |ctx|. |profile| contains a colon-separated list of profile names. It returns
- * one on success and zero on failure. */
- OPENSSL_EXPORT int SSL_CTX_set_srtp_profiles(SSL_CTX *ctx,
- const char *profiles);
-
- /* SSL_set_srtp_profiles enables SRTP for |ssl|. |profile| contains a
- * colon-separated list of profile names. It returns one on success and zero on
- * failure. */
- OPENSSL_EXPORT int SSL_set_srtp_profiles(SSL *ssl, const char *profiles);
-
- /* SSL_get_srtp_profiles returns the SRTP profiles supported by |ssl|. */
- OPENSSL_EXPORT STACK_OF(SRTP_PROTECTION_PROFILE) *SSL_get_srtp_profiles(
- SSL *ssl);
-
- /* SSL_get_selected_srtp_profile returns the selected SRTP profile, or NULL if
- * SRTP was not negotiated. */
- OPENSSL_EXPORT const SRTP_PROTECTION_PROFILE *SSL_get_selected_srtp_profile(
- SSL *ssl);
-
-
- /* Pre-shared keys.
- *
- * Connections may be configured with PSK (Pre-Shared Key) cipher suites. These
- * authenticate using out-of-band pre-shared keys rather than certificates. See
- * RFC 4279.
- *
- * This implementation uses NUL-terminated C strings for identities and identity
- * hints, so values with a NUL character are not supported. (RFC 4279 does not
- * specify the format of an identity.) */
-
- /* PSK_MAX_IDENTITY_LEN is the maximum supported length of a PSK identity,
- * excluding the NUL terminator. */
- #define PSK_MAX_IDENTITY_LEN 128
-
- /* PSK_MAX_PSK_LEN is the maximum supported length of a pre-shared key. */
- #define PSK_MAX_PSK_LEN 256
-
- /* SSL_CTX_set_psk_client_callback sets the callback to be called when PSK is
- * negotiated on the client. This callback must be set to enable PSK cipher
- * suites on the client.
- *
- * The callback is passed the identity hint in |hint| or NULL if none was
- * provided. It should select a PSK identity and write the identity and the
- * corresponding PSK to |identity| and |psk|, respectively. The identity is
- * written as a NUL-terminated C string of length (excluding the NUL terminator)
- * at most |max_identity_len|. The PSK's length must be at most |max_psk_len|.
- * The callback returns the length of the PSK or 0 if no suitable identity was
- * found. */
- OPENSSL_EXPORT void SSL_CTX_set_psk_client_callback(
- SSL_CTX *ctx,
- unsigned (*psk_client_callback)(
- SSL *ssl, const char *hint, char *identity,
- unsigned max_identity_len, uint8_t *psk, unsigned max_psk_len));
-
- /* SSL_set_psk_client_callback sets the callback to be called when PSK is
- * negotiated on the client. This callback must be set to enable PSK cipher
- * suites on the client. See also |SSL_CTX_set_psk_client_callback|. */
- OPENSSL_EXPORT void SSL_set_psk_client_callback(
- SSL *ssl, unsigned (*psk_client_callback)(SSL *ssl, const char *hint,
- char *identity,
- unsigned max_identity_len,
- uint8_t *psk,
- unsigned max_psk_len));
-
- /* SSL_CTX_set_psk_server_callback sets the callback to be called when PSK is
- * negotiated on the server. This callback must be set to enable PSK cipher
- * suites on the server.
- *
- * The callback is passed the identity in |identity|. It should write a PSK of
- * length at most |max_psk_len| to |psk| and return the number of bytes written
- * or zero if the PSK identity is unknown. */
- OPENSSL_EXPORT void SSL_CTX_set_psk_server_callback(
- SSL_CTX *ctx,
- unsigned (*psk_server_callback)(SSL *ssl, const char *identity,
- uint8_t *psk,
- unsigned max_psk_len));
-
- /* SSL_set_psk_server_callback sets the callback to be called when PSK is
- * negotiated on the server. This callback must be set to enable PSK cipher
- * suites on the server. See also |SSL_CTX_set_psk_server_callback|. */
- OPENSSL_EXPORT void SSL_set_psk_server_callback(
- SSL *ssl,
- unsigned (*psk_server_callback)(SSL *ssl, const char *identity,
- uint8_t *psk,
- unsigned max_psk_len));
-
- /* SSL_CTX_use_psk_identity_hint configures server connections to advertise an
- * identity hint of |identity_hint|. It returns one on success and zero on
- * error. */
- OPENSSL_EXPORT int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx,
- const char *identity_hint);
-
- /* SSL_use_psk_identity_hint configures server connections to advertise an
- * identity hint of |identity_hint|. It returns one on success and zero on
- * error. */
- OPENSSL_EXPORT int SSL_use_psk_identity_hint(SSL *ssl,
- const char *identity_hint);
-
- /* SSL_get_psk_identity_hint returns the PSK identity hint advertised for |ssl|
- * or NULL if there is none. */
- OPENSSL_EXPORT const char *SSL_get_psk_identity_hint(const SSL *ssl);
-
- /* SSL_get_psk_identity, after the handshake completes, returns the PSK identity
- * that was negotiated by |ssl| or NULL if PSK was not used. */
- OPENSSL_EXPORT const char *SSL_get_psk_identity(const SSL *ssl);
-
-
- /* Alerts.
- *
- * TLS and SSL 3.0 use alerts to signal error conditions. Alerts have a type
- * (warning or fatal) and description. OpenSSL internally handles fatal alerts
- * with dedicated error codes (see |SSL_AD_REASON_OFFSET|). Except for
- * close_notify, warning alerts are silently ignored and may only be surfaced
- * with |SSL_CTX_set_info_callback|. */
-
- /* SSL_AD_REASON_OFFSET is the offset between error reasons and |SSL_AD_*|
- * values. Any error code under |ERR_LIB_SSL| with an error reason above this
- * value corresponds to an alert description. Consumers may add or subtract
- * |SSL_AD_REASON_OFFSET| to convert between them.
- *
- * make_errors.go reserves error codes above 1000 for manually-assigned errors.
- * This value must be kept in sync with reservedReasonCode in make_errors.h */
- #define SSL_AD_REASON_OFFSET 1000
-
- /* SSL_AD_* are alert descriptions for SSL 3.0 and TLS. */
- #define SSL_AD_CLOSE_NOTIFY SSL3_AD_CLOSE_NOTIFY
- #define SSL_AD_UNEXPECTED_MESSAGE SSL3_AD_UNEXPECTED_MESSAGE
- #define SSL_AD_BAD_RECORD_MAC SSL3_AD_BAD_RECORD_MAC
- #define SSL_AD_DECRYPTION_FAILED TLS1_AD_DECRYPTION_FAILED
- #define SSL_AD_RECORD_OVERFLOW TLS1_AD_RECORD_OVERFLOW
- #define SSL_AD_DECOMPRESSION_FAILURE SSL3_AD_DECOMPRESSION_FAILURE
- #define SSL_AD_HANDSHAKE_FAILURE SSL3_AD_HANDSHAKE_FAILURE
- #define SSL_AD_NO_CERTIFICATE SSL3_AD_NO_CERTIFICATE /* Not used in TLS */
- #define SSL_AD_BAD_CERTIFICATE SSL3_AD_BAD_CERTIFICATE
- #define SSL_AD_UNSUPPORTED_CERTIFICATE SSL3_AD_UNSUPPORTED_CERTIFICATE
- #define SSL_AD_CERTIFICATE_REVOKED SSL3_AD_CERTIFICATE_REVOKED
- #define SSL_AD_CERTIFICATE_EXPIRED SSL3_AD_CERTIFICATE_EXPIRED
- #define SSL_AD_CERTIFICATE_UNKNOWN SSL3_AD_CERTIFICATE_UNKNOWN
- #define SSL_AD_ILLEGAL_PARAMETER SSL3_AD_ILLEGAL_PARAMETER
- #define SSL_AD_UNKNOWN_CA TLS1_AD_UNKNOWN_CA
- #define SSL_AD_ACCESS_DENIED TLS1_AD_ACCESS_DENIED
- #define SSL_AD_DECODE_ERROR TLS1_AD_DECODE_ERROR
- #define SSL_AD_DECRYPT_ERROR TLS1_AD_DECRYPT_ERROR
- #define SSL_AD_EXPORT_RESTRICTION TLS1_AD_EXPORT_RESTRICTION
- #define SSL_AD_PROTOCOL_VERSION TLS1_AD_PROTOCOL_VERSION
- #define SSL_AD_INSUFFICIENT_SECURITY TLS1_AD_INSUFFICIENT_SECURITY
- #define SSL_AD_INTERNAL_ERROR TLS1_AD_INTERNAL_ERROR
- #define SSL_AD_INAPPROPRIATE_FALLBACK SSL3_AD_INAPPROPRIATE_FALLBACK
- #define SSL_AD_USER_CANCELLED TLS1_AD_USER_CANCELLED
- #define SSL_AD_NO_RENEGOTIATION TLS1_AD_NO_RENEGOTIATION
- #define SSL_AD_MISSING_EXTENSION TLS1_AD_MISSING_EXTENSION
- #define SSL_AD_UNSUPPORTED_EXTENSION TLS1_AD_UNSUPPORTED_EXTENSION
- #define SSL_AD_CERTIFICATE_UNOBTAINABLE TLS1_AD_CERTIFICATE_UNOBTAINABLE
- #define SSL_AD_UNRECOGNIZED_NAME TLS1_AD_UNRECOGNIZED_NAME
- #define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE \
- TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
- #define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
- #define SSL_AD_UNKNOWN_PSK_IDENTITY TLS1_AD_UNKNOWN_PSK_IDENTITY
- #define SSL_AD_CERTIFICATE_REQUIRED TLS1_AD_CERTIFICATE_REQUIRED
-
- /* SSL_alert_type_string_long returns a string description of |value| as an
- * alert type (warning or fatal). */
- OPENSSL_EXPORT const char *SSL_alert_type_string_long(int value);
-
- /* SSL_alert_desc_string_long returns a string description of |value| as an
- * alert description or "unknown" if unknown. */
- OPENSSL_EXPORT const char *SSL_alert_desc_string_long(int value);
-
- /* SSL_send_fatal_alert sends a fatal alert over |ssl| of the specified type,
- * which should be one of the |SSL_AD_*| constants. It returns one on success
- * and <= 0 on error. The caller should pass the return value into
- * |SSL_get_error| to determine how to proceed. Once this function has been
- * called, future calls to |SSL_write| will fail.
- *
- * If retrying a failed operation due to |SSL_ERROR_WANT_WRITE|, subsequent
- * calls must use the same |alert| parameter. */
- OPENSSL_EXPORT int SSL_send_fatal_alert(SSL *ssl, uint8_t alert);
-
-
- /* ex_data functions.
- *
- * See |ex_data.h| for details. */
-
- OPENSSL_EXPORT int SSL_set_ex_data(SSL *ssl, int idx, void *data);
- OPENSSL_EXPORT void *SSL_get_ex_data(const SSL *ssl, int idx);
- OPENSSL_EXPORT int SSL_get_ex_new_index(long argl, void *argp,
- CRYPTO_EX_unused *unused,
- CRYPTO_EX_dup *dup_func,
- CRYPTO_EX_free *free_func);
-
- OPENSSL_EXPORT int SSL_SESSION_set_ex_data(SSL_SESSION *session, int idx,
- void *data);
- OPENSSL_EXPORT void *SSL_SESSION_get_ex_data(const SSL_SESSION *session,
- int idx);
- OPENSSL_EXPORT int SSL_SESSION_get_ex_new_index(long argl, void *argp,
- CRYPTO_EX_unused *unused,
- CRYPTO_EX_dup *dup_func,
- CRYPTO_EX_free *free_func);
-
- OPENSSL_EXPORT int SSL_CTX_set_ex_data(SSL_CTX *ctx, int idx, void *data);
- OPENSSL_EXPORT void *SSL_CTX_get_ex_data(const SSL_CTX *ctx, int idx);
- OPENSSL_EXPORT int SSL_CTX_get_ex_new_index(long argl, void *argp,
- CRYPTO_EX_unused *unused,
- CRYPTO_EX_dup *dup_func,
- CRYPTO_EX_free *free_func);
-
-
- /* Low-level record-layer state. */
-
- /* SSL_get_ivs sets |*out_iv_len| to the length of the IVs for the ciphers
- * underlying |ssl| and sets |*out_read_iv| and |*out_write_iv| to point to the
- * current IVs for the read and write directions. This is only meaningful for
- * connections with implicit IVs (i.e. CBC mode with SSLv3 or TLS 1.0).
- *
- * It returns one on success or zero on error. */
- OPENSSL_EXPORT int SSL_get_ivs(const SSL *ssl, const uint8_t **out_read_iv,
- const uint8_t **out_write_iv,
- size_t *out_iv_len);
-
- /* SSL_get_key_block_len returns the length of |ssl|'s key block. */
- OPENSSL_EXPORT size_t SSL_get_key_block_len(const SSL *ssl);
-
- /* SSL_generate_key_block generates |out_len| bytes of key material for |ssl|'s
- * current connection state. */
- OPENSSL_EXPORT int SSL_generate_key_block(const SSL *ssl, uint8_t *out,
- size_t out_len);
-
- /* SSL_get_read_sequence returns, in TLS, the expected sequence number of the
- * next incoming record in the current epoch. In DTLS, it returns the maximum
- * sequence number received in the current epoch and includes the epoch number
- * in the two most significant bytes. */
- OPENSSL_EXPORT uint64_t SSL_get_read_sequence(const SSL *ssl);
-
- /* SSL_get_write_sequence returns the sequence number of the next outgoing
- * record in the current epoch. In DTLS, it includes the epoch number in the
- * two most significant bytes. */
- OPENSSL_EXPORT uint64_t SSL_get_write_sequence(const SSL *ssl);
-
-
- /* Obscure functions. */
-
- /* SSL_get_structure_sizes returns the sizes of the SSL, SSL_CTX and
- * SSL_SESSION structures so that a test can ensure that outside code agrees on
- * these values. */
- OPENSSL_EXPORT void SSL_get_structure_sizes(size_t *ssl_size,
- size_t *ssl_ctx_size,
- size_t *ssl_session_size);
-
- /* SSL_CTX_set_msg_callback installs |cb| as the message callback for |ctx|.
- * This callback will be called when sending or receiving low-level record
- * headers, complete handshake messages, ChangeCipherSpec, and alerts.
- * |write_p| is one for outgoing messages and zero for incoming messages.
- *
- * For each record header, |cb| is called with |version| = 0 and |content_type|
- * = |SSL3_RT_HEADER|. The |len| bytes from |buf| contain the header. Note that
- * this does not include the record body. If the record is sealed, the length
- * in the header is the length of the ciphertext.
- *
- * For each handshake message, ChangeCipherSpec, and alert, |version| is the
- * protocol version and |content_type| is the corresponding record type. The
- * |len| bytes from |buf| contain the handshake message, one-byte
- * ChangeCipherSpec body, and two-byte alert, respectively.
- *
- * For a V2ClientHello, |version| is |SSL2_VERSION|, |content_type| is zero, and
- * the |len| bytes from |buf| contain the V2ClientHello structure. */
- OPENSSL_EXPORT void SSL_CTX_set_msg_callback(
- SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type,
- const void *buf, size_t len, SSL *ssl, void *arg));
-
- /* SSL_CTX_set_msg_callback_arg sets the |arg| parameter of the message
- * callback. */
- OPENSSL_EXPORT void SSL_CTX_set_msg_callback_arg(SSL_CTX *ctx, void *arg);
-
- /* SSL_set_msg_callback installs |cb| as the message callback of |ssl|. See
- * |SSL_CTX_set_msg_callback| for when this callback is called. */
- OPENSSL_EXPORT void SSL_set_msg_callback(
- SSL *ssl, void (*cb)(int write_p, int version, int content_type,
- const void *buf, size_t len, SSL *ssl, void *arg));
-
- /* SSL_set_msg_callback_arg sets the |arg| parameter of the message callback. */
- OPENSSL_EXPORT void SSL_set_msg_callback_arg(SSL *ssl, void *arg);
-
- /* SSL_CTX_set_keylog_callback configures a callback to log key material. This
- * is intended for debugging use with tools like Wireshark. The |cb| function
- * should log |line| followed by a newline, synchronizing with any concurrent
- * access to the log.
- *
- * The format is described in
- * https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format. */
- OPENSSL_EXPORT void SSL_CTX_set_keylog_callback(
- SSL_CTX *ctx, void (*cb)(const SSL *ssl, const char *line));
-
- /* SSL_CTX_get_keylog_callback returns the callback configured by
- * |SSL_CTX_set_keylog_callback|. */
- OPENSSL_EXPORT void (*SSL_CTX_get_keylog_callback(const SSL_CTX *ctx))(
- const SSL *ssl, const char *line);
-
- /* SSL_CTX_set_current_time_cb configures a callback to retrieve the current
- * time, which should be set in |*out_clock|. This can be used for testing
- * purposes; for example, a callback can be configured that returns a time
- * set explicitly by the test. */
- OPENSSL_EXPORT void SSL_CTX_set_current_time_cb(
- SSL_CTX *ctx, void (*cb)(const SSL *ssl, struct timeval *out_clock));
-
- enum ssl_renegotiate_mode_t {
- ssl_renegotiate_never = 0,
- ssl_renegotiate_once,
- ssl_renegotiate_freely,
- ssl_renegotiate_ignore,
- };
-
- /* SSL_set_renegotiate_mode configures how |ssl|, a client, reacts to
- * renegotiation attempts by a server. If |ssl| is a server, peer-initiated
- * renegotiations are *always* rejected and this function does nothing.
- *
- * The renegotiation mode defaults to |ssl_renegotiate_never|, but may be set
- * at any point in a connection's lifetime. Set it to |ssl_renegotiate_once| to
- * allow one renegotiation, |ssl_renegotiate_freely| to allow all
- * renegotiations or |ssl_renegotiate_ignore| to ignore HelloRequest messages.
- * Note that ignoring HelloRequest messages may cause the connection to stall
- * if the server waits for the renegotiation to complete.
- *
- * There is no support in BoringSSL for initiating renegotiations as a client
- * or server. */
- OPENSSL_EXPORT void SSL_set_renegotiate_mode(SSL *ssl,
- enum ssl_renegotiate_mode_t mode);
-
- /* SSL_renegotiate_pending returns one if |ssl| is in the middle of a
- * renegotiation. */
- OPENSSL_EXPORT int SSL_renegotiate_pending(SSL *ssl);
-
- /* SSL_total_renegotiations returns the total number of renegotiation handshakes
- * peformed by |ssl|. This includes the pending renegotiation, if any. */
- OPENSSL_EXPORT int SSL_total_renegotiations(const SSL *ssl);
-
- /* SSL_CTX_set_early_data_enabled sets whether early data is allowed to be used
- * with resumptions using |ctx|. WARNING: This is experimental and may cause
- * interop failures until fully implemented. */
- OPENSSL_EXPORT void SSL_CTX_set_early_data_enabled(SSL_CTX *ctx, int enabled);
-
- /* SSL_MAX_CERT_LIST_DEFAULT is the default maximum length, in bytes, of a peer
- * certificate chain. */
- #define SSL_MAX_CERT_LIST_DEFAULT (1024 * 100)
-
- /* SSL_CTX_get_max_cert_list returns the maximum length, in bytes, of a peer
- * certificate chain accepted by |ctx|. */
- OPENSSL_EXPORT size_t SSL_CTX_get_max_cert_list(const SSL_CTX *ctx);
-
- /* SSL_CTX_set_max_cert_list sets the maximum length, in bytes, of a peer
- * certificate chain to |max_cert_list|. This affects how much memory may be
- * consumed during the handshake. */
- OPENSSL_EXPORT void SSL_CTX_set_max_cert_list(SSL_CTX *ctx,
- size_t max_cert_list);
-
- /* SSL_get_max_cert_list returns the maximum length, in bytes, of a peer
- * certificate chain accepted by |ssl|. */
- OPENSSL_EXPORT size_t SSL_get_max_cert_list(const SSL *ssl);
-
- /* SSL_set_max_cert_list sets the maximum length, in bytes, of a peer
- * certificate chain to |max_cert_list|. This affects how much memory may be
- * consumed during the handshake. */
- OPENSSL_EXPORT void SSL_set_max_cert_list(SSL *ssl, size_t max_cert_list);
-
- /* SSL_CTX_set_max_send_fragment sets the maximum length, in bytes, of records
- * sent by |ctx|. Beyond this length, handshake messages and application data
- * will be split into multiple records. It returns one on success or zero on
- * error. */
- OPENSSL_EXPORT int SSL_CTX_set_max_send_fragment(SSL_CTX *ctx,
- size_t max_send_fragment);
-
- /* SSL_set_max_send_fragment sets the maximum length, in bytes, of records sent
- * by |ssl|. Beyond this length, handshake messages and application data will
- * be split into multiple records. It returns one on success or zero on
- * error. */
- OPENSSL_EXPORT int SSL_set_max_send_fragment(SSL *ssl,
- size_t max_send_fragment);
-
- /* ssl_early_callback_ctx (aka |SSL_CLIENT_HELLO|) is passed to certain
- * callbacks that are called very early on during the server handshake. At this
- * point, much of the SSL* hasn't been filled out and only the ClientHello can
- * be depended on. */
- typedef struct ssl_early_callback_ctx {
- SSL *ssl;
- const uint8_t *client_hello;
- size_t client_hello_len;
- uint16_t version;
- const uint8_t *random;
- size_t random_len;
- const uint8_t *session_id;
- size_t session_id_len;
- const uint8_t *cipher_suites;
- size_t cipher_suites_len;
- const uint8_t *compression_methods;
- size_t compression_methods_len;
- const uint8_t *extensions;
- size_t extensions_len;
- } SSL_CLIENT_HELLO;
-
- /* SSL_early_callback_ctx_extension_get searches the extensions in
- * |client_hello| for an extension of the given type. If not found, it returns
- * zero. Otherwise it sets |out_data| to point to the extension contents (not
- * including the type and length bytes), sets |out_len| to the length of the
- * extension contents and returns one. */
- OPENSSL_EXPORT int SSL_early_callback_ctx_extension_get(
- const SSL_CLIENT_HELLO *client_hello, uint16_t extension_type,
- const uint8_t **out_data, size_t *out_len);
-
- /* SSL_CTX_set_select_certificate_cb sets a callback that is called before most
- * ClientHello processing and before the decision whether to resume a session
- * is made. The callback may inspect the ClientHello and configure the
- * connection. It may then return one to continue the handshake or zero to
- * pause the handshake to perform an asynchronous operation. If paused,
- * |SSL_get_error| will return |SSL_ERROR_PENDING_CERTIFICATE|.
- *
- * Note: The |SSL_CLIENT_HELLO| is only valid for the duration of the callback
- * and is not valid while the handshake is paused. Further, unlike with most
- * callbacks, when the handshake loop is resumed, it will not call the callback
- * a second time. The caller must finish reconfiguring the connection before
- * resuming the handshake. */
- OPENSSL_EXPORT void SSL_CTX_set_select_certificate_cb(
- SSL_CTX *ctx, int (*cb)(const SSL_CLIENT_HELLO *));
-
- /* SSL_CTX_set_dos_protection_cb sets a callback that is called once the
- * resumption decision for a ClientHello has been made. It can return one to
- * allow the handshake to continue or zero to cause the handshake to abort. */
- OPENSSL_EXPORT void SSL_CTX_set_dos_protection_cb(
- SSL_CTX *ctx, int (*cb)(const SSL_CLIENT_HELLO *));
-
- /* SSL_ST_* are possible values for |SSL_state| and the bitmasks that make them
- * up. */
- #define SSL_ST_CONNECT 0x1000
- #define SSL_ST_ACCEPT 0x2000
- #define SSL_ST_MASK 0x0FFF
- #define SSL_ST_INIT (SSL_ST_CONNECT | SSL_ST_ACCEPT)
- #define SSL_ST_OK 0x03
- #define SSL_ST_RENEGOTIATE (0x04 | SSL_ST_INIT)
- #define SSL_ST_TLS13 (0x05 | SSL_ST_INIT)
- #define SSL_ST_ERROR (0x06| SSL_ST_INIT)
-
- /* SSL_CB_* are possible values for the |type| parameter in the info
- * callback and the bitmasks that make them up. */
- #define SSL_CB_LOOP 0x01
- #define SSL_CB_EXIT 0x02
- #define SSL_CB_READ 0x04
- #define SSL_CB_WRITE 0x08
- #define SSL_CB_ALERT 0x4000
- #define SSL_CB_READ_ALERT (SSL_CB_ALERT | SSL_CB_READ)
- #define SSL_CB_WRITE_ALERT (SSL_CB_ALERT | SSL_CB_WRITE)
- #define SSL_CB_ACCEPT_LOOP (SSL_ST_ACCEPT | SSL_CB_LOOP)
- #define SSL_CB_ACCEPT_EXIT (SSL_ST_ACCEPT | SSL_CB_EXIT)
- #define SSL_CB_CONNECT_LOOP (SSL_ST_CONNECT | SSL_CB_LOOP)
- #define SSL_CB_CONNECT_EXIT (SSL_ST_CONNECT | SSL_CB_EXIT)
- #define SSL_CB_HANDSHAKE_START 0x10
- #define SSL_CB_HANDSHAKE_DONE 0x20
-
- /* SSL_CTX_set_info_callback configures a callback to be run when various
- * events occur during a connection's lifetime. The |type| argumentj determines
- * the type of event and the meaning of the |value| argument. Callbacks must
- * ignore unexpected |type| values.
- *
- * |SSL_CB_READ_ALERT| is signaled for each alert received, warning or fatal.
- * The |value| argument is a 16-bit value where the alert level (either
- * |SSL3_AL_WARNING| or |SSL3_AL_FATAL|) is in the most-significant eight bits and
- * the alert type (one of |SSL_AD_*|) is in the least-significant eight.
- *
- * |SSL_CB_WRITE_ALERT| is signaled for each alert sent. The |value| argument
- * is constructed as with |SSL_CB_READ_ALERT|.
- *
- * |SSL_CB_HANDSHAKE_START| is signaled when a handshake begins. The |value|
- * argument is always one.
- *
- * |SSL_CB_HANDSHAKE_DONE| is signaled when a handshake completes successfully.
- * The |value| argument is always one. If a handshake False Starts, this event
- * may be used to determine when the Finished message is received.
- *
- * The following event types expose implementation details of the handshake
- * state machine. Consuming them is deprecated.
- *
- * |SSL_CB_ACCEPT_LOOP| (respectively, |SSL_CB_CONNECT_LOOP|) is signaled when
- * a server (respectively, client) handshake progresses. The |value| argument
- * is always one. For the duration of the callback, |SSL_state| will return the
- * previous state.
- *
- * |SSL_CB_ACCEPT_EXIT| (respectively, |SSL_CB_CONNECT_EXIT|) is signaled when
- * a server (respectively, client) handshake completes, fails, or is paused.
- * The |value| argument is one if the handshake succeeded and <= 0
- * otherwise. */
- OPENSSL_EXPORT void SSL_CTX_set_info_callback(
- SSL_CTX *ctx, void (*cb)(const SSL *ssl, int type, int value));
-
- /* SSL_CTX_get_info_callback returns the callback set by
- * |SSL_CTX_set_info_callback|. */
- OPENSSL_EXPORT void (*SSL_CTX_get_info_callback(SSL_CTX *ctx))(const SSL *ssl,
- int type,
- int value);
-
- /* SSL_set_info_callback configures a callback to be run at various events
- * during a connection's lifetime. See |SSL_CTX_set_info_callback|. */
- OPENSSL_EXPORT void SSL_set_info_callback(
- SSL *ssl, void (*cb)(const SSL *ssl, int type, int value));
-
- /* SSL_get_info_callback returns the callback set by |SSL_set_info_callback|. */
- OPENSSL_EXPORT void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl,
- int type,
- int value);
-
- /* SSL_state_string_long returns the current state of the handshake state
- * machine as a string. This may be useful for debugging and logging. */
- OPENSSL_EXPORT const char *SSL_state_string_long(const SSL *ssl);
-
- /* SSL_set_SSL_CTX partially changes |ssl|'s |SSL_CTX|. |ssl| will use the
- * certificate and session_id_context from |ctx|, and |SSL_get_SSL_CTX| will
- * report |ctx|. However most settings and the session cache itself will
- * continue to use the initial |SSL_CTX|. It is often used as part of SNI.
- *
- * TODO(davidben): Make a better story here and get rid of this API. Also
- * determine if there's anything else affected by |SSL_set_SSL_CTX| that
- * matters. Not as many values are affected as one might initially think. The
- * session cache explicitly selects the initial |SSL_CTX|. Most settings are
- * copied at |SSL_new| so |ctx|'s versions don't apply. This, notably, has some
- * consequences for any plans to make |SSL| copy-on-write most of its
- * configuration. */
- OPENSSL_EXPORT SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx);
-
- #define SSL_SENT_SHUTDOWN 1
- #define SSL_RECEIVED_SHUTDOWN 2
-
- /* SSL_get_shutdown returns a bitmask with a subset of |SSL_SENT_SHUTDOWN| and
- * |SSL_RECEIVED_SHUTDOWN| to query whether close_notify was sent or received,
- * respectively. */
- OPENSSL_EXPORT int SSL_get_shutdown(const SSL *ssl);
-
- /* SSL_get_peer_signature_algorithm returns the signature algorithm used by the
- * peer. If not applicable, it returns zero. */
- OPENSSL_EXPORT uint16_t SSL_get_peer_signature_algorithm(const SSL *ssl);
-
- /* SSL_get_client_random writes up to |max_out| bytes of the most recent
- * handshake's client_random to |out| and returns the number of bytes written.
- * If |max_out| is zero, it returns the size of the client_random. */
- OPENSSL_EXPORT size_t SSL_get_client_random(const SSL *ssl, uint8_t *out,
- size_t max_out);
-
- /* SSL_get_server_random writes up to |max_out| bytes of the most recent
- * handshake's server_random to |out| and returns the number of bytes written.
- * If |max_out| is zero, it returns the size of the server_random. */
- OPENSSL_EXPORT size_t SSL_get_server_random(const SSL *ssl, uint8_t *out,
- size_t max_out);
-
- /* SSL_get_pending_cipher returns the cipher suite for the current handshake or
- * NULL if one has not been negotiated yet or there is no pending handshake. */
- OPENSSL_EXPORT const SSL_CIPHER *SSL_get_pending_cipher(const SSL *ssl);
-
- /* SSL_set_retain_only_sha256_of_client_certs, on a server, sets whether only
- * the SHA-256 hash of peer's certificate should be saved in memory and in the
- * session. This can save memory, ticket size and session cache space. If
- * enabled, |SSL_get_peer_certificate| will return NULL after the handshake
- * completes. See the |peer_sha256| field of |SSL_SESSION| for the hash. */
- OPENSSL_EXPORT void SSL_set_retain_only_sha256_of_client_certs(SSL *ssl,
- int enable);
-
- /* SSL_CTX_set_retain_only_sha256_of_client_certs, on a server, sets whether
- * only the SHA-256 hash of peer's certificate should be saved in memory and in
- * the session. This can save memory, ticket size and session cache space. If
- * enabled, |SSL_get_peer_certificate| will return NULL after the handshake
- * completes. See the |peer_sha256| field of |SSL_SESSION| for the hash. */
- OPENSSL_EXPORT void SSL_CTX_set_retain_only_sha256_of_client_certs(SSL_CTX *ctx,
- int enable);
-
- /* SSL_CTX_set_grease_enabled configures whether sockets on |ctx| should enable
- * GREASE. See draft-davidben-tls-grease-01. */
- OPENSSL_EXPORT void SSL_CTX_set_grease_enabled(SSL_CTX *ctx, int enabled);
-
- /* SSL_max_seal_overhead returns the maximum overhead, in bytes, of sealing a
- * record with |ssl|. */
- OPENSSL_EXPORT size_t SSL_max_seal_overhead(const SSL *ssl);
-
- /* SSL_CTX_set_short_header_enabled configures whether a short record header in
- * TLS 1.3 may be negotiated. This allows client and server to negotiate
- * https://github.com/tlswg/tls13-spec/pull/762 for testing. */
- OPENSSL_EXPORT void SSL_CTX_set_short_header_enabled(SSL_CTX *ctx, int enabled);
-
-
- /* Deprecated functions. */
-
- /* SSL_library_init calls |CRYPTO_library_init| and returns one. */
- OPENSSL_EXPORT int SSL_library_init(void);
-
- /* SSL_CIPHER_description writes a description of |cipher| into |buf| and
- * returns |buf|. If |buf| is NULL, it returns a newly allocated string, to be
- * freed with |OPENSSL_free|, or NULL on error.
- *
- * The description includes a trailing newline and has the form:
- * AES128-SHA Kx=RSA Au=RSA Enc=AES(128) Mac=SHA1
- *
- * Consider |SSL_CIPHER_get_name| or |SSL_CIPHER_get_rfc_name| instead. */
- OPENSSL_EXPORT const char *SSL_CIPHER_description(const SSL_CIPHER *cipher,
- char *buf, int len);
-
- /* SSL_CIPHER_get_version returns the string "TLSv1/SSLv3". */
- OPENSSL_EXPORT const char *SSL_CIPHER_get_version(const SSL_CIPHER *cipher);
-
- typedef void COMP_METHOD;
-
- /* SSL_COMP_get_compression_methods returns NULL. */
- OPENSSL_EXPORT COMP_METHOD *SSL_COMP_get_compression_methods(void);
-
- /* SSL_COMP_add_compression_method returns one. */
- OPENSSL_EXPORT int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
-
- /* SSL_COMP_get_name returns NULL. */
- OPENSSL_EXPORT const char *SSL_COMP_get_name(const COMP_METHOD *comp);
-
- /* SSL_COMP_free_compression_methods does nothing. */
- OPENSSL_EXPORT void SSL_COMP_free_compression_methods(void);
-
- /* SSLv23_method calls |TLS_method|. */
- OPENSSL_EXPORT const SSL_METHOD *SSLv23_method(void);
-
- /* These version-specific methods behave exactly like |TLS_method| and
- * |DTLS_method| except they also call |SSL_CTX_set_min_proto_version| and
- * |SSL_CTX_set_max_proto_version| to lock connections to that protocol
- * version. */
- OPENSSL_EXPORT const SSL_METHOD *SSLv3_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_1_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_2_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLSv1_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLSv1_2_method(void);
-
- /* These client- and server-specific methods call their corresponding generic
- * methods. */
- OPENSSL_EXPORT const SSL_METHOD *TLS_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLS_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *SSLv23_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *SSLv23_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *SSLv3_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *SSLv3_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_1_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_1_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_2_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *TLSv1_2_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLS_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLS_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLSv1_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLSv1_client_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLSv1_2_server_method(void);
- OPENSSL_EXPORT const SSL_METHOD *DTLSv1_2_client_method(void);
-
- /* SSL_clear resets |ssl| to allow another connection and returns one on success
- * or zero on failure. It returns most configuration state but releases memory
- * associated with the current connection.
- *
- * Free |ssl| and create a new one instead. */
- OPENSSL_EXPORT int SSL_clear(SSL *ssl);
-
- /* SSL_CTX_set_tmp_rsa_callback does nothing. */
- OPENSSL_EXPORT void SSL_CTX_set_tmp_rsa_callback(
- SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, int keylength));
-
- /* SSL_set_tmp_rsa_callback does nothing. */
- OPENSSL_EXPORT void SSL_set_tmp_rsa_callback(SSL *ssl,
- RSA *(*cb)(SSL *ssl, int is_export,
- int keylength));
-
- /* SSL_CTX_sess_connect returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_connect(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_connect_good returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_connect_good(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_connect_renegotiate returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_connect_renegotiate(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_accept returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_accept(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_accept_renegotiate returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_accept_renegotiate(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_accept_good returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_accept_good(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_hits returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_hits(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_cb_hits returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_cb_hits(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_misses returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_misses(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_timeouts returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_timeouts(const SSL_CTX *ctx);
-
- /* SSL_CTX_sess_cache_full returns zero. */
- OPENSSL_EXPORT int SSL_CTX_sess_cache_full(const SSL_CTX *ctx);
-
- /* SSL_cutthrough_complete calls |SSL_in_false_start|. */
- OPENSSL_EXPORT int SSL_cutthrough_complete(const SSL *s);
-
- /* SSL_num_renegotiations calls |SSL_total_renegotiations|. */
- OPENSSL_EXPORT int SSL_num_renegotiations(const SSL *ssl);
-
- /* SSL_CTX_need_tmp_RSA returns zero. */
- OPENSSL_EXPORT int SSL_CTX_need_tmp_RSA(const SSL_CTX *ctx);
-
- /* SSL_need_tmp_RSA returns zero. */
- OPENSSL_EXPORT int SSL_need_tmp_RSA(const SSL *ssl);
-
- /* SSL_CTX_set_tmp_rsa returns one. */
- OPENSSL_EXPORT int SSL_CTX_set_tmp_rsa(SSL_CTX *ctx, const RSA *rsa);
-
- /* SSL_set_tmp_rsa returns one. */
- OPENSSL_EXPORT int SSL_set_tmp_rsa(SSL *ssl, const RSA *rsa);
-
- /* SSL_CTX_get_read_ahead returns zero. */
- OPENSSL_EXPORT int SSL_CTX_get_read_ahead(const SSL_CTX *ctx);
-
- /* SSL_CTX_set_read_ahead does nothing. */
- OPENSSL_EXPORT void SSL_CTX_set_read_ahead(SSL_CTX *ctx, int yes);
-
- /* SSL_get_read_ahead returns zero. */
- OPENSSL_EXPORT int SSL_get_read_ahead(const SSL *s);
-
- /* SSL_set_read_ahead does nothing. */
- OPENSSL_EXPORT void SSL_set_read_ahead(SSL *s, int yes);
-
- /* SSL_renegotiate put an error on the error queue and returns zero. */
- OPENSSL_EXPORT int SSL_renegotiate(SSL *ssl);
-
- /* SSL_set_state does nothing. */
- OPENSSL_EXPORT void SSL_set_state(SSL *ssl, int state);
-
- /* SSL_get_shared_ciphers writes an empty string to |buf| and returns a
- * pointer to |buf|, or NULL if |len| is less than or equal to zero. */
- OPENSSL_EXPORT char *SSL_get_shared_ciphers(const SSL *ssl, char *buf, int len);
-
- /* SSL_MODE_HANDSHAKE_CUTTHROUGH is the same as SSL_MODE_ENABLE_FALSE_START. */
- #define SSL_MODE_HANDSHAKE_CUTTHROUGH SSL_MODE_ENABLE_FALSE_START
-
- /* i2d_SSL_SESSION serializes |in| to the bytes pointed to by |*pp|. On success,
- * it returns the number of bytes written and advances |*pp| by that many bytes.
- * On failure, it returns -1. If |pp| is NULL, no bytes are written and only the
- * length is returned.
- *
- * Use |SSL_SESSION_to_bytes| instead. */
- OPENSSL_EXPORT int i2d_SSL_SESSION(SSL_SESSION *in, uint8_t **pp);
-
- /* d2i_SSL_SESSION parses a serialized session from the |length| bytes pointed
- * to by |*pp|. It returns the new |SSL_SESSION| and advances |*pp| by the
- * number of bytes consumed on success and NULL on failure. The caller takes
- * ownership of the new session and must call |SSL_SESSION_free| when done.
- *
- * If |a| is non-NULL, |*a| is released and set the new |SSL_SESSION|.
- *
- * Use |SSL_SESSION_from_bytes| instead. */
- OPENSSL_EXPORT SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const uint8_t **pp,
- long length);
-
- /* i2d_SSL_SESSION_bio serializes |session| and writes the result to |bio|. It
- * returns the number of bytes written on success and <= 0 on error. */
- OPENSSL_EXPORT int i2d_SSL_SESSION_bio(BIO *bio, const SSL_SESSION *session);
-
- /* d2i_SSL_SESSION_bio reads a serialized |SSL_SESSION| from |bio| and returns a
- * newly-allocated |SSL_SESSION| or NULL on error. If |out| is not NULL, it also
- * frees |*out| and sets |*out| to the new |SSL_SESSION|. */
- OPENSSL_EXPORT SSL_SESSION *d2i_SSL_SESSION_bio(BIO *bio, SSL_SESSION **out);
-
- /* ERR_load_SSL_strings does nothing. */
- OPENSSL_EXPORT void ERR_load_SSL_strings(void);
-
- /* SSL_load_error_strings does nothing. */
- OPENSSL_EXPORT void SSL_load_error_strings(void);
-
- /* SSL_CTX_set_tlsext_use_srtp calls |SSL_CTX_set_srtp_profiles|. It returns
- * zero on success and one on failure.
- *
- * WARNING: this function is dangerous because it breaks the usual return value
- * convention. Use |SSL_CTX_set_srtp_profiles| instead. */
- OPENSSL_EXPORT int SSL_CTX_set_tlsext_use_srtp(SSL_CTX *ctx,
- const char *profiles);
-
- /* SSL_set_tlsext_use_srtp calls |SSL_set_srtp_profiles|. It returns zero on
- * success and one on failure.
- *
- * WARNING: this function is dangerous because it breaks the usual return value
- * convention. Use |SSL_set_srtp_profiles| instead. */
- OPENSSL_EXPORT int SSL_set_tlsext_use_srtp(SSL *ssl, const char *profiles);
-
- /* SSL_get_current_compression returns NULL. */
- OPENSSL_EXPORT const COMP_METHOD *SSL_get_current_compression(SSL *s);
-
- /* SSL_get_current_expansion returns NULL. */
- OPENSSL_EXPORT const COMP_METHOD *SSL_get_current_expansion(SSL *s);
-
- /* SSL_get_server_tmp_key returns zero. */
- OPENSSL_EXPORT int *SSL_get_server_tmp_key(SSL *ssl, EVP_PKEY **out_key);
-
- #define SSL_set_app_data(s, arg) (SSL_set_ex_data(s, 0, (char *)(arg)))
- #define SSL_get_app_data(s) (SSL_get_ex_data(s, 0))
- #define SSL_SESSION_set_app_data(s, a) \
- (SSL_SESSION_set_ex_data(s, 0, (char *)(a)))
- #define SSL_SESSION_get_app_data(s) (SSL_SESSION_get_ex_data(s, 0))
- #define SSL_CTX_get_app_data(ctx) (SSL_CTX_get_ex_data(ctx, 0))
- #define SSL_CTX_set_app_data(ctx, arg) \
- (SSL_CTX_set_ex_data(ctx, 0, (char *)(arg)))
-
- #define OpenSSL_add_ssl_algorithms() SSL_library_init()
- #define SSLeay_add_ssl_algorithms() SSL_library_init()
-
- #define SSL_get_cipher(ssl) SSL_CIPHER_get_name(SSL_get_current_cipher(ssl))
- #define SSL_get_cipher_bits(ssl, out_alg_bits) \
- SSL_CIPHER_get_bits(SSL_get_current_cipher(ssl), out_alg_bits)
- #define SSL_get_cipher_version(ssl) \
- SSL_CIPHER_get_version(SSL_get_current_cipher(ssl))
- #define SSL_get_cipher_name(ssl) \
- SSL_CIPHER_get_name(SSL_get_current_cipher(ssl))
- #define SSL_get_time(session) SSL_SESSION_get_time(session)
- #define SSL_set_time(session, time) SSL_SESSION_set_time((session), (time))
- #define SSL_get_timeout(session) SSL_SESSION_get_timeout(session)
- #define SSL_set_timeout(session, timeout) \
- SSL_SESSION_set_timeout((session), (timeout))
-
- typedef struct ssl_comp_st SSL_COMP;
-
- struct ssl_comp_st {
- int id;
- const char *name;
- char *method;
- };
-
- DECLARE_STACK_OF(SSL_COMP)
-
- /* The following flags do nothing and are included only to make it easier to
- * compile code with BoringSSL. */
- #define SSL_MODE_AUTO_RETRY 0
- #define SSL_MODE_RELEASE_BUFFERS 0
- #define SSL_MODE_SEND_CLIENTHELLO_TIME 0
- #define SSL_MODE_SEND_SERVERHELLO_TIME 0
- #define SSL_OP_ALL 0
- #define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 0
- #define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 0
- #define SSL_OP_EPHEMERAL_RSA 0
- #define SSL_OP_LEGACY_SERVER_CONNECT 0
- #define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER 0
- #define SSL_OP_MICROSOFT_SESS_ID_BUG 0
- #define SSL_OP_MSIE_SSLV2_RSA_PADDING 0
- #define SSL_OP_NETSCAPE_CA_DN_BUG 0
- #define SSL_OP_NETSCAPE_CHALLENGE_BUG 0
- #define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG 0
- #define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG 0
- #define SSL_OP_NO_COMPRESSION 0
- #define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0
- #define SSL_OP_NO_SSLv2 0
- #define SSL_OP_PKCS1_CHECK_1 0
- #define SSL_OP_PKCS1_CHECK_2 0
- #define SSL_OP_SINGLE_DH_USE 0
- #define SSL_OP_SINGLE_ECDH_USE 0
- #define SSL_OP_SSLEAY_080_CLIENT_DH_BUG 0
- #define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG 0
- #define SSL_OP_TLS_BLOCK_PADDING_BUG 0
- #define SSL_OP_TLS_D5_BUG 0
- #define SSL_OP_TLS_ROLLBACK_BUG 0
- #define SSL_VERIFY_CLIENT_ONCE 0
-
- /* SSL_cache_hit calls |SSL_session_reused|. */
- OPENSSL_EXPORT int SSL_cache_hit(SSL *ssl);
-
- /* SSL_get_default_timeout returns |SSL_DEFAULT_SESSION_TIMEOUT|. */
- OPENSSL_EXPORT long SSL_get_default_timeout(const SSL *ssl);
-
- /* SSL_get_version returns a string describing the TLS version used by |ssl|.
- * For example, "TLSv1.2" or "SSLv3". */
- OPENSSL_EXPORT const char *SSL_get_version(const SSL *ssl);
-
- /* SSL_get_cipher_list returns the name of the |n|th cipher in the output of
- * |SSL_get_ciphers| or NULL if out of range. Use |SSL_get_ciphers| insteads. */
- OPENSSL_EXPORT const char *SSL_get_cipher_list(const SSL *ssl, int n);
-
- /* SSL_CTX_set_client_cert_cb sets a callback which is called on the client if
- * the server requests a client certificate and none is configured. On success,
- * the callback should return one and set |*out_x509| to |*out_pkey| to a leaf
- * certificate and private key, respectively, passing ownership. It should
- * return zero to send no certificate and -1 to fail or pause the handshake. If
- * the handshake is paused, |SSL_get_error| will return
- * |SSL_ERROR_WANT_X509_LOOKUP|.
- *
- * The callback may call |SSL_get0_certificate_types| and
- * |SSL_get_client_CA_list| for information on the server's certificate request.
- *
- * Use |SSL_CTX_set_cert_cb| instead. Configuring intermediate certificates with
- * this function is confusing. This callback may not be registered concurrently
- * with |SSL_CTX_set_cert_cb| or |SSL_set_cert_cb|. */
- OPENSSL_EXPORT void SSL_CTX_set_client_cert_cb(
- SSL_CTX *ctx,
- int (*client_cert_cb)(SSL *ssl, X509 **out_x509, EVP_PKEY **out_pkey));
-
- #define SSL_NOTHING 1
- #define SSL_WRITING 2
- #define SSL_READING 3
- #define SSL_X509_LOOKUP 4
- #define SSL_CHANNEL_ID_LOOKUP 5
- #define SSL_PENDING_SESSION 7
- #define SSL_CERTIFICATE_SELECTION_PENDING 8
- #define SSL_PRIVATE_KEY_OPERATION 9
-
- /* SSL_want returns one of the above values to determine what the most recent
- * operation on |ssl| was blocked on. Use |SSL_get_error| instead. */
- OPENSSL_EXPORT int SSL_want(const SSL *ssl);
-
- #define SSL_want_read(ssl) (SSL_want(ssl) == SSL_READING)
- #define SSL_want_write(ssl) (SSL_want(ssl) == SSL_WRITING)
-
- /* SSL_get_finished writes up to |count| bytes of the Finished message sent by
- * |ssl| to |buf|. It returns the total untruncated length or zero if none has
- * been sent yet. At SSL 3.0 or TLS 1.3 and later, it returns zero.
- *
- * Use |SSL_get_tls_unique| instead. */
- OPENSSL_EXPORT size_t SSL_get_finished(const SSL *ssl, void *buf, size_t count);
-
- /* SSL_get_peer_finished writes up to |count| bytes of the Finished message
- * received from |ssl|'s peer to |buf|. It returns the total untruncated length
- * or zero if none has been received yet. At SSL 3.0 or TLS 1.3 and later, it
- * returns zero.
- *
- * Use |SSL_get_tls_unique| instead. */
- OPENSSL_EXPORT size_t SSL_get_peer_finished(const SSL *ssl, void *buf,
- size_t count);
-
- /* SSL_alert_type_string returns "!". Use |SSL_alert_type_string_long|
- * instead. */
- OPENSSL_EXPORT const char *SSL_alert_type_string(int value);
-
- /* SSL_alert_desc_string returns "!!". Use |SSL_alert_desc_string_long|
- * instead. */
- OPENSSL_EXPORT const char *SSL_alert_desc_string(int value);
-
- /* SSL_TXT_* expand to strings. */
- #define SSL_TXT_MEDIUM "MEDIUM"
- #define SSL_TXT_HIGH "HIGH"
- #define SSL_TXT_FIPS "FIPS"
- #define SSL_TXT_kRSA "kRSA"
- #define SSL_TXT_kDHE "kDHE"
- #define SSL_TXT_kEDH "kEDH"
- #define SSL_TXT_kECDHE "kECDHE"
- #define SSL_TXT_kEECDH "kEECDH"
- #define SSL_TXT_kPSK "kPSK"
- #define SSL_TXT_aRSA "aRSA"
- #define SSL_TXT_aECDSA "aECDSA"
- #define SSL_TXT_aPSK "aPSK"
- #define SSL_TXT_DH "DH"
- #define SSL_TXT_DHE "DHE"
- #define SSL_TXT_EDH "EDH"
- #define SSL_TXT_RSA "RSA"
- #define SSL_TXT_ECDH "ECDH"
- #define SSL_TXT_ECDHE "ECDHE"
- #define SSL_TXT_EECDH "EECDH"
- #define SSL_TXT_ECDSA "ECDSA"
- #define SSL_TXT_PSK "PSK"
- #define SSL_TXT_3DES "3DES"
- #define SSL_TXT_RC4 "RC4"
- #define SSL_TXT_AES128 "AES128"
- #define SSL_TXT_AES256 "AES256"
- #define SSL_TXT_AES "AES"
- #define SSL_TXT_AES_GCM "AESGCM"
- #define SSL_TXT_CHACHA20 "CHACHA20"
- #define SSL_TXT_MD5 "MD5"
- #define SSL_TXT_SHA1 "SHA1"
- #define SSL_TXT_SHA "SHA"
- #define SSL_TXT_SHA256 "SHA256"
- #define SSL_TXT_SHA384 "SHA384"
- #define SSL_TXT_SSLV3 "SSLv3"
- #define SSL_TXT_TLSV1 "TLSv1"
- #define SSL_TXT_TLSV1_1 "TLSv1.1"
- #define SSL_TXT_TLSV1_2 "TLSv1.2"
- #define SSL_TXT_TLSV1_3 "TLSv1.3"
- #define SSL_TXT_ALL "ALL"
- #define SSL_TXT_CMPDEF "COMPLEMENTOFDEFAULT"
-
- typedef struct ssl_conf_ctx_st SSL_CONF_CTX;
-
- /* SSL_state returns the current state of the handshake state machine. */
- OPENSSL_EXPORT int SSL_state(const SSL *ssl);
-
- #define SSL_get_state(ssl) SSL_state(ssl)
-
- /* SSL_state_string returns the current state of the handshake state machine as
- * a six-letter string. Use |SSL_state_string_long| for a more intelligible
- * string. */
- OPENSSL_EXPORT const char *SSL_state_string(const SSL *ssl);
-
- /* SSL_set_shutdown causes |ssl| to behave as if the shutdown bitmask (see
- * |SSL_get_shutdown|) were |mode|. This may be used to skip sending or
- * receiving close_notify in |SSL_shutdown| by causing the implementation to
- * believe the events already happened.
- *
- * It is an error to use |SSL_set_shutdown| to unset a bit that has already been
- * set. Doing so will trigger an |assert| in debug builds and otherwise be
- * ignored.
- *
- * Use |SSL_CTX_set_quiet_shutdown| instead. */
- OPENSSL_EXPORT void SSL_set_shutdown(SSL *ssl, int mode);
-
- /* SSL_CTX_set_tmp_ecdh calls |SSL_CTX_set1_curves| with a one-element list
- * containing |ec_key|'s curve. */
- OPENSSL_EXPORT int SSL_CTX_set_tmp_ecdh(SSL_CTX *ctx, const EC_KEY *ec_key);
-
- /* SSL_set_tmp_ecdh calls |SSL_set1_curves| with a one-element list containing
- * |ec_key|'s curve. */
- OPENSSL_EXPORT int SSL_set_tmp_ecdh(SSL *ssl, const EC_KEY *ec_key);
-
- /* SSL_add_dir_cert_subjects_to_stack lists files in directory |dir|. It calls
- * |SSL_add_file_cert_subjects_to_stack| on each file and returns one on success
- * or zero on error. This function is only available from the libdecrepit
- * library. */
- OPENSSL_EXPORT int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *out,
- const char *dir);
-
- /* SSL_set_private_key_digest_prefs copies |num_digests| NIDs from |digest_nids|
- * into |ssl|. These digests will be used, in decreasing order of preference,
- * when signing with |ssl|'s private key. It returns one on success and zero on
- * error.
- *
- * Use |SSL_set_signing_algorithm_prefs| instead.
- *
- * TODO(davidben): Remove this API when callers have been updated. */
- OPENSSL_EXPORT int SSL_set_private_key_digest_prefs(SSL *ssl,
- const int *digest_nids,
- size_t num_digests);
-
- /* SSL_set_verify_result calls |abort| unless |result| is |X509_V_OK|.
- *
- * TODO(davidben): Remove this function once it has been removed from
- * netty-tcnative. */
- OPENSSL_EXPORT void SSL_set_verify_result(SSL *ssl, long result);
-
- /* SSL_CTX_set_min_version calls |SSL_CTX_set_min_proto_version|. */
- OPENSSL_EXPORT int SSL_CTX_set_min_version(SSL_CTX *ctx, uint16_t version);
-
- /* SSL_CTX_set_max_version calls |SSL_CTX_set_max_proto_version|. */
- OPENSSL_EXPORT int SSL_CTX_set_max_version(SSL_CTX *ctx, uint16_t version);
-
- /* SSL_set_min_version calls |SSL_set_min_proto_version|. */
- OPENSSL_EXPORT int SSL_set_min_version(SSL *ssl, uint16_t version);
-
- /* SSL_set_max_version calls |SSL_set_max_proto_version|. */
- OPENSSL_EXPORT int SSL_set_max_version(SSL *ssl, uint16_t version);
-
- /* SSL_CTX_enable_tls_channel_id calls |SSL_CTX_set_tls_channel_id_enabled|. */
- OPENSSL_EXPORT int SSL_CTX_enable_tls_channel_id(SSL_CTX *ctx);
-
- /* SSL_enable_tls_channel_id calls |SSL_set_tls_channel_id_enabled|. */
- OPENSSL_EXPORT int SSL_enable_tls_channel_id(SSL *ssl);
-
- /* BIO_f_ssl returns a |BIO_METHOD| that can wrap an |SSL*| in a |BIO*|. Note
- * that this has quite different behaviour from the version in OpenSSL (notably
- * that it doesn't try to auto renegotiate). */
- OPENSSL_EXPORT const BIO_METHOD *BIO_f_ssl(void);
-
- /* BIO_set_ssl sets |ssl| as the underlying connection for |bio|, which must
- * have been created using |BIO_f_ssl|. If |take_owership| is true, |bio| will
- * call |SSL_free| on |ssl| when closed. It returns one on success or something
- * other than one on error. */
- OPENSSL_EXPORT long BIO_set_ssl(BIO *bio, SSL *ssl, int take_owership);
-
-
- /* Private structures.
- *
- * This structures are exposed for historical reasons, but access to them is
- * deprecated. */
-
- typedef struct ssl_protocol_method_st SSL_PROTOCOL_METHOD;
-
- struct ssl_cipher_st {
- /* name is the OpenSSL name for the cipher. */
- const char *name;
- /* id is the cipher suite value bitwise OR-d with 0x03000000. */
- uint32_t id;
-
- /* algorithm_* are internal fields. See ssl/internal.h for their values. */
- uint32_t algorithm_mkey;
- uint32_t algorithm_auth;
- uint32_t algorithm_enc;
- uint32_t algorithm_mac;
- uint32_t algorithm_prf;
- };
-
- #define SSL_MAX_SSL_SESSION_ID_LENGTH 32
- #define SSL_MAX_SID_CTX_LENGTH 32
- #define SSL_MAX_MASTER_KEY_LENGTH 48
-
- struct ssl_session_st {
- CRYPTO_refcount_t references;
- int ssl_version; /* what ssl version session info is being kept in here? */
-
- /* group_id is the ID of the ECDH group used to establish this session or zero
- * if not applicable or unknown. */
- uint16_t group_id;
-
- /* peer_signature_algorithm is the signature algorithm used to authenticate
- * the peer, or zero if not applicable or unknown. */
- uint16_t peer_signature_algorithm;
-
- /* master_key, in TLS 1.2 and below, is the master secret associated with the
- * session. In TLS 1.3 and up, it is the resumption secret. */
- int master_key_length;
- uint8_t master_key[SSL_MAX_MASTER_KEY_LENGTH];
-
- /* session_id - valid? */
- unsigned int session_id_length;
- uint8_t session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
- /* this is used to determine whether the session is being reused in
- * the appropriate context. It is up to the application to set this,
- * via SSL_new */
- uint8_t sid_ctx_length;
- uint8_t sid_ctx[SSL_MAX_SID_CTX_LENGTH];
-
- char *psk_identity;
-
- /* certs contains the certificate chain from the peer, starting with the leaf
- * certificate. */
- STACK_OF(CRYPTO_BUFFER) *certs;
-
- /* x509_peer is the peer's certificate. */
- X509 *x509_peer;
-
- /* x509_chain is the certificate chain sent by the peer. NOTE: for historical
- * reasons, when a client (so the peer is a server), the chain includes
- * |peer|, but when a server it does not. */
- STACK_OF(X509) *x509_chain;
-
- /* x509_chain_without_leaf is a lazily constructed copy of |x509_chain| that
- * omits the leaf certificate. This exists because OpenSSL, historically,
- * didn't include the leaf certificate in the chain for a server, but did for
- * a client. The |x509_chain| always includes it and, if an API call requires
- * a chain without, it is stored here. */
- STACK_OF(X509) *x509_chain_without_leaf;
-
- /* verify_result is the result of certificate verification in the case of
- * non-fatal certificate errors. */
- long verify_result;
-
- /* timeout is the lifetime of the session in seconds, measured from |time|. */
- long timeout;
-
- /* time is the time the session was issued, measured in seconds from the UNIX
- * epoch. */
- long time;
-
- const SSL_CIPHER *cipher;
-
- CRYPTO_EX_DATA ex_data; /* application specific data */
-
- /* These are used to make removal of session-ids more efficient and to
- * implement a maximum cache size. */
- SSL_SESSION *prev, *next;
- char *tlsext_hostname;
-
- /* RFC4507 info */
- uint8_t *tlsext_tick; /* Session ticket */
- size_t tlsext_ticklen; /* Session ticket length */
-
- size_t tlsext_signed_cert_timestamp_list_length;
- uint8_t *tlsext_signed_cert_timestamp_list; /* Server's list. */
-
- /* The OCSP response that came with the session. */
- size_t ocsp_response_length;
- uint8_t *ocsp_response;
-
- /* peer_sha256 contains the SHA-256 hash of the peer's certificate if
- * |peer_sha256_valid| is true. */
- uint8_t peer_sha256[SHA256_DIGEST_LENGTH];
-
- /* original_handshake_hash contains the handshake hash (either SHA-1+MD5 or
- * SHA-2, depending on TLS version) for the original, full handshake that
- * created a session. This is used by Channel IDs during resumption. */
- uint8_t original_handshake_hash[EVP_MAX_MD_SIZE];
- uint8_t original_handshake_hash_len;
-
- uint32_t tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
-
- uint32_t ticket_age_add;
-
- /* ticket_max_early_data is the maximum amount of data allowed to be sent as
- * early data. If zero, 0-RTT is disallowed. */
- uint32_t ticket_max_early_data;
-
- /* extended_master_secret is true if the master secret in this session was
- * generated using EMS and thus isn't vulnerable to the Triple Handshake
- * attack. */
- unsigned extended_master_secret:1;
-
- /* peer_sha256_valid is non-zero if |peer_sha256| is valid. */
- unsigned peer_sha256_valid:1; /* Non-zero if peer_sha256 is valid */
-
- /* not_resumable is used to indicate that session resumption is disallowed. */
- unsigned not_resumable:1;
-
- /* ticket_age_add_valid is non-zero if |ticket_age_add| is valid. */
- unsigned ticket_age_add_valid:1;
-
- /* is_server is true if this session was created by a server. */
- unsigned is_server:1;
- };
-
- /* ssl_cipher_preference_list_st contains a list of SSL_CIPHERs with
- * equal-preference groups. For TLS clients, the groups are moot because the
- * server picks the cipher and groups cannot be expressed on the wire. However,
- * for servers, the equal-preference groups allow the client's preferences to
- * be partially respected. (This only has an effect with
- * SSL_OP_CIPHER_SERVER_PREFERENCE).
- *
- * The equal-preference groups are expressed by grouping SSL_CIPHERs together.
- * All elements of a group have the same priority: no ordering is expressed
- * within a group.
- *
- * The values in |ciphers| are in one-to-one correspondence with
- * |in_group_flags|. (That is, sk_SSL_CIPHER_num(ciphers) is the number of
- * bytes in |in_group_flags|.) The bytes in |in_group_flags| are either 1, to
- * indicate that the corresponding SSL_CIPHER is not the last element of a
- * group, or 0 to indicate that it is.
- *
- * For example, if |in_group_flags| contains all zeros then that indicates a
- * traditional, fully-ordered preference. Every SSL_CIPHER is the last element
- * of the group (i.e. they are all in a one-element group).
- *
- * For a more complex example, consider:
- * ciphers: A B C D E F
- * in_group_flags: 1 1 0 0 1 0
- *
- * That would express the following, order:
- *
- * A E
- * B -> D -> F
- * C
- */
- struct ssl_cipher_preference_list_st {
- STACK_OF(SSL_CIPHER) *ciphers;
- uint8_t *in_group_flags;
- };
-
- /* ssl_ctx_st (aka |SSL_CTX|) contains configuration common to several SSL
- * connections. */
- struct ssl_ctx_st {
- const SSL_PROTOCOL_METHOD *method;
-
- /* lock is used to protect various operations on this object. */
- CRYPTO_MUTEX lock;
-
- /* max_version is the maximum acceptable protocol version. Note this version
- * is normalized in DTLS. */
- uint16_t max_version;
-
- /* min_version is the minimum acceptable protocol version. Note this version
- * is normalized in DTLS. */
- uint16_t min_version;
-
- struct ssl_cipher_preference_list_st *cipher_list;
-
- X509_STORE *cert_store;
- LHASH_OF(SSL_SESSION) *sessions;
- /* Most session-ids that will be cached, default is
- * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. */
- unsigned long session_cache_size;
- SSL_SESSION *session_cache_head;
- SSL_SESSION *session_cache_tail;
-
- /* handshakes_since_cache_flush is the number of successful handshakes since
- * the last cache flush. */
- int handshakes_since_cache_flush;
-
- /* This can have one of 2 values, ored together,
- * SSL_SESS_CACHE_CLIENT,
- * SSL_SESS_CACHE_SERVER,
- * Default is SSL_SESSION_CACHE_SERVER, which means only
- * SSL_accept which cache SSL_SESSIONS. */
- int session_cache_mode;
-
- /* If timeout is not 0, it is the default timeout value set when SSL_new() is
- * called. This has been put in to make life easier to set things up */
- long session_timeout;
-
- /* If this callback is not null, it will be called each time a session id is
- * added to the cache. If this function returns 1, it means that the
- * callback will do a SSL_SESSION_free() when it has finished using it.
- * Otherwise, on 0, it means the callback has finished with it. If
- * remove_session_cb is not null, it will be called when a session-id is
- * removed from the cache. After the call, OpenSSL will SSL_SESSION_free()
- * it. */
- int (*new_session_cb)(SSL *ssl, SSL_SESSION *sess);
- void (*remove_session_cb)(SSL_CTX *ctx, SSL_SESSION *sess);
- SSL_SESSION *(*get_session_cb)(SSL *ssl, uint8_t *data, int len,
- int *copy);
-
- CRYPTO_refcount_t references;
-
- /* if defined, these override the X509_verify_cert() calls */
- int (*app_verify_callback)(X509_STORE_CTX *store_ctx, void *arg);
- void *app_verify_arg;
-
- /* Default password callback. */
- pem_password_cb *default_passwd_callback;
-
- /* Default password callback user data. */
- void *default_passwd_callback_userdata;
-
- /* get client cert callback */
- int (*client_cert_cb)(SSL *ssl, X509 **out_x509, EVP_PKEY **out_pkey);
-
- /* get channel id callback */
- void (*channel_id_cb)(SSL *ssl, EVP_PKEY **out_pkey);
-
- CRYPTO_EX_DATA ex_data;
-
- /* custom_*_extensions stores any callback sets for custom extensions. Note
- * that these pointers will be NULL if the stack would otherwise be empty. */
- STACK_OF(SSL_CUSTOM_EXTENSION) *client_custom_extensions;
- STACK_OF(SSL_CUSTOM_EXTENSION) *server_custom_extensions;
-
- /* Default values used when no per-SSL value is defined follow */
-
- void (*info_callback)(const SSL *ssl, int type, int value);
-
- /* what we put in client cert requests */
- STACK_OF(X509_NAME) *client_CA;
-
-
- /* Default values to use in SSL structures follow (these are copied by
- * SSL_new) */
-
- uint32_t options;
- uint32_t mode;
- uint32_t max_cert_list;
-
- struct cert_st /* CERT */ *cert;
-
- /* callback that allows applications to peek at protocol messages */
- void (*msg_callback)(int write_p, int version, int content_type,
- const void *buf, size_t len, SSL *ssl, void *arg);
- void *msg_callback_arg;
-
- int verify_mode;
- uint8_t sid_ctx_length;
- uint8_t sid_ctx[SSL_MAX_SID_CTX_LENGTH];
- int (*default_verify_callback)(
- int ok, X509_STORE_CTX *ctx); /* called 'verify_callback' in the SSL */
-
- X509_VERIFY_PARAM *param;
-
- /* select_certificate_cb is called before most ClientHello processing and
- * before the decision whether to resume a session is made. It may return one
- * to continue the handshake or zero to cause the handshake loop to return
- * with an error and cause SSL_get_error to return
- * SSL_ERROR_PENDING_CERTIFICATE. Note: when the handshake loop is resumed, it
- * will not call the callback a second time. */
- int (*select_certificate_cb)(const SSL_CLIENT_HELLO *);
-
- /* dos_protection_cb is called once the resumption decision for a ClientHello
- * has been made. It returns one to continue the handshake or zero to
- * abort. */
- int (*dos_protection_cb) (const SSL_CLIENT_HELLO *);
-
- /* Maximum amount of data to send in one fragment. actual record size can be
- * more than this due to padding and MAC overheads. */
- uint16_t max_send_fragment;
-
- /* TLS extensions servername callback */
- int (*tlsext_servername_callback)(SSL *, int *, void *);
- void *tlsext_servername_arg;
- /* RFC 4507 session ticket keys */
- uint8_t tlsext_tick_key_name[SSL_TICKET_KEY_NAME_LEN];
- uint8_t tlsext_tick_hmac_key[16];
- uint8_t tlsext_tick_aes_key[16];
- /* Callback to support customisation of ticket key setting */
- int (*tlsext_ticket_key_cb)(SSL *ssl, uint8_t *name, uint8_t *iv,
- EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc);
-
- /* Server-only: psk_identity_hint is the default identity hint to send in
- * PSK-based key exchanges. */
- char *psk_identity_hint;
-
- unsigned int (*psk_client_callback)(SSL *ssl, const char *hint,
- char *identity,
- unsigned int max_identity_len,
- uint8_t *psk, unsigned int max_psk_len);
- unsigned int (*psk_server_callback)(SSL *ssl, const char *identity,
- uint8_t *psk, unsigned int max_psk_len);
-
-
- /* retain_only_sha256_of_client_certs is true if we should compute the SHA256
- * hash of the peer's certificate and then discard it to save memory and
- * session space. Only effective on the server side. */
- char retain_only_sha256_of_client_certs;
-
- /* Next protocol negotiation information */
- /* (for experimental NPN extension). */
-
- /* For a server, this contains a callback function by which the set of
- * advertised protocols can be provided. */
- int (*next_protos_advertised_cb)(SSL *ssl, const uint8_t **out,
- unsigned *out_len, void *arg);
- void *next_protos_advertised_cb_arg;
- /* For a client, this contains a callback function that selects the
- * next protocol from the list provided by the server. */
- int (*next_proto_select_cb)(SSL *ssl, uint8_t **out, uint8_t *out_len,
- const uint8_t *in, unsigned in_len, void *arg);
- void *next_proto_select_cb_arg;
-
- /* ALPN information
- * (we are in the process of transitioning from NPN to ALPN.) */
-
- /* For a server, this contains a callback function that allows the
- * server to select the protocol for the connection.
- * out: on successful return, this must point to the raw protocol
- * name (without the length prefix).
- * outlen: on successful return, this contains the length of |*out|.
- * in: points to the client's list of supported protocols in
- * wire-format.
- * inlen: the length of |in|. */
- int (*alpn_select_cb)(SSL *s, const uint8_t **out, uint8_t *out_len,
- const uint8_t *in, unsigned in_len, void *arg);
- void *alpn_select_cb_arg;
-
- /* For a client, this contains the list of supported protocols in wire
- * format. */
- uint8_t *alpn_client_proto_list;
- unsigned alpn_client_proto_list_len;
-
- /* SRTP profiles we are willing to do from RFC 5764 */
- STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
-
- /* Supported group values inherited by SSL structure */
- size_t supported_group_list_len;
- uint16_t *supported_group_list;
-
- /* The client's Channel ID private key. */
- EVP_PKEY *tlsext_channel_id_private;
-
- /* Signed certificate timestamp list to be sent to the client, if requested */
- uint8_t *signed_cert_timestamp_list;
- size_t signed_cert_timestamp_list_length;
-
- /* OCSP response to be sent to the client, if requested. */
- CRYPTO_BUFFER *ocsp_response;
-
- /* keylog_callback, if not NULL, is the key logging callback. See
- * |SSL_CTX_set_keylog_callback|. */
- void (*keylog_callback)(const SSL *ssl, const char *line);
-
- /* current_time_cb, if not NULL, is the function to use to get the current
- * time. It sets |*out_clock| to the current time. See
- * |SSL_CTX_set_current_time_cb|. */
- void (*current_time_cb)(const SSL *ssl, struct timeval *out_clock);
-
- /* pool is used for all |CRYPTO_BUFFER|s in case we wish to share certificate
- * memory. */
- CRYPTO_BUFFER_POOL *pool;
-
- /* quiet_shutdown is true if the connection should not send a close_notify on
- * shutdown. */
- unsigned quiet_shutdown:1;
-
- /* If enable_early_data is non-zero, early data can be sent and accepted over
- * new connections. */
- unsigned enable_early_data:1;
-
- /* ocsp_stapling_enabled is only used by client connections and indicates
- * whether OCSP stapling will be requested. */
- unsigned ocsp_stapling_enabled:1;
-
- /* If true, a client will request certificate timestamps. */
- unsigned signed_cert_timestamps_enabled:1;
-
- /* tlsext_channel_id_enabled is one if Channel ID is enabled and zero
- * otherwise. For a server, means that we'll accept Channel IDs from clients.
- * For a client, means that we'll advertise support. */
- unsigned tlsext_channel_id_enabled:1;
-
- /* grease_enabled is one if draft-davidben-tls-grease-01 is enabled and zero
- * otherwise. */
- unsigned grease_enabled:1;
-
- /* short_header_enabled is one if a short record header in TLS 1.3 may
- * be negotiated and zero otherwise. */
- unsigned short_header_enabled:1;
-
- /* extra_certs is a dummy value included for compatibility.
- * TODO(agl): remove once node.js no longer references this. */
- STACK_OF(X509)* extra_certs;
- int freelist_max_len;
- };
-
- typedef struct ssl_handshake_st SSL_HANDSHAKE;
-
- struct ssl_st {
- /* method is the method table corresponding to the current protocol (DTLS or
- * TLS). */
- const SSL_PROTOCOL_METHOD *method;
-
- /* version is the protocol version. */
- int version;
-
- /* max_version is the maximum acceptable protocol version. Note this version
- * is normalized in DTLS. */
- uint16_t max_version;
-
- /* min_version is the minimum acceptable protocol version. Note this version
- * is normalized in DTLS. */
- uint16_t min_version;
-
- uint16_t max_send_fragment;
-
- /* There are 2 BIO's even though they are normally both the same. This is so
- * data can be read and written to different handlers */
-
- BIO *rbio; /* used by SSL_read */
- BIO *wbio; /* used by SSL_write */
-
- /* bbio, if non-NULL, is a buffer placed in front of |wbio| to pack handshake
- * messages within one flight into a single |BIO_write|. In this case, |wbio|
- * and |bbio| are equal and the true caller-configured BIO is
- * |bbio->next_bio|.
- *
- * TODO(davidben): This does not work right for DTLS. It assumes the MTU is
- * smaller than the buffer size so that the buffer's internal flushing never
- * kicks in. It also doesn't kick in for DTLS retransmission. Replace this
- * with a better mechanism. */
- BIO *bbio;
-
- int (*handshake_func)(SSL_HANDSHAKE *hs);
-
- BUF_MEM *init_buf; /* buffer used during init */
-
- /* init_msg is a pointer to the current handshake message body. */
- const uint8_t *init_msg;
- /* init_num is the length of the current handshake message body. */
- uint32_t init_num;
-
- /* init_off, in DTLS, is the number of bytes of the current message that have
- * been written. */
- uint32_t init_off;
-
- struct ssl3_state_st *s3; /* SSLv3 variables */
- struct dtls1_state_st *d1; /* DTLSv1 variables */
-
- /* callback that allows applications to peek at protocol messages */
- void (*msg_callback)(int write_p, int version, int content_type,
- const void *buf, size_t len, SSL *ssl, void *arg);
- void *msg_callback_arg;
-
- X509_VERIFY_PARAM *param;
-
- /* crypto */
- struct ssl_cipher_preference_list_st *cipher_list;
-
- /* session info */
-
- /* client cert? */
- /* This is used to hold the server certificate used */
- struct cert_st /* CERT */ *cert;
-
- /* This holds a variable that indicates what we were doing when a 0 or -1 is
- * returned. This is needed for non-blocking IO so we know what request
- * needs re-doing when in SSL_accept or SSL_connect */
- int rwstate;
-
- /* initial_timeout_duration_ms is the default DTLS timeout duration in
- * milliseconds. It's used to initialize the timer any time it's restarted. */
- unsigned initial_timeout_duration_ms;
-
- /* the session_id_context is used to ensure sessions are only reused
- * in the appropriate context */
- uint8_t sid_ctx_length;
- uint8_t sid_ctx[SSL_MAX_SID_CTX_LENGTH];
-
- /* session is the configured session to be offered by the client. This session
- * is immutable. */
- SSL_SESSION *session;
-
- int (*verify_callback)(int ok,
- X509_STORE_CTX *ctx); /* fail if callback returns 0 */
-
- void (*info_callback)(const SSL *ssl, int type, int value);
-
- /* Server-only: psk_identity_hint is the identity hint to send in
- * PSK-based key exchanges. */
- char *psk_identity_hint;
-
- unsigned int (*psk_client_callback)(SSL *ssl, const char *hint,
- char *identity,
- unsigned int max_identity_len,
- uint8_t *psk, unsigned int max_psk_len);
- unsigned int (*psk_server_callback)(SSL *ssl, const char *identity,
- uint8_t *psk, unsigned int max_psk_len);
-
- SSL_CTX *ctx;
-
- /* extra application data */
- CRYPTO_EX_DATA ex_data;
-
- /* for server side, keep the list of CA_dn we can use */
- STACK_OF(X509_NAME) *client_CA;
-
- uint32_t options; /* protocol behaviour */
- uint32_t mode; /* API behaviour */
- uint32_t max_cert_list;
- char *tlsext_hostname;
- size_t supported_group_list_len;
- uint16_t *supported_group_list; /* our list */
-
- SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
-
- /* srtp_profiles is the list of configured SRTP protection profiles for
- * DTLS-SRTP. */
- STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
-
- /* srtp_profile is the selected SRTP protection profile for
- * DTLS-SRTP. */
- const SRTP_PROTECTION_PROFILE *srtp_profile;
-
- /* The client's Channel ID private key. */
- EVP_PKEY *tlsext_channel_id_private;
-
- /* For a client, this contains the list of supported protocols in wire
- * format. */
- uint8_t *alpn_client_proto_list;
- unsigned alpn_client_proto_list_len;
-
- /* renegotiate_mode controls how peer renegotiation attempts are handled. */
- enum ssl_renegotiate_mode_t renegotiate_mode;
-
- /* verify_mode is a bitmask of |SSL_VERIFY_*| values. */
- uint8_t verify_mode;
-
- /* server is true iff the this SSL* is the server half. Note: before the SSL*
- * is initialized by either SSL_set_accept_state or SSL_set_connect_state,
- * the side is not determined. In this state, server is always false. */
- unsigned server:1;
-
- /* quiet_shutdown is true if the connection should not send a close_notify on
- * shutdown. */
- unsigned quiet_shutdown:1;
-
- /* Enable signed certificate time stamps. Currently client only. */
- unsigned signed_cert_timestamps_enabled:1;
-
- /* ocsp_stapling_enabled is only used by client connections and indicates
- * whether OCSP stapling will be requested. */
- unsigned ocsp_stapling_enabled:1;
-
- /* tlsext_channel_id_enabled is copied from the |SSL_CTX|. For a server,
- * means that we'll accept Channel IDs from clients. For a client, means that
- * we'll advertise support. */
- unsigned tlsext_channel_id_enabled:1;
-
- /* retain_only_sha256_of_client_certs is true if we should compute the SHA256
- * hash of the peer's certificate and then discard it to save memory and
- * session space. Only effective on the server side. */
- unsigned retain_only_sha256_of_client_certs:1;
-
- /* TODO(agl): remove once node.js not longer references this. */
- int tlsext_status_type;
-
- /* session_timeout is the default lifetime in seconds of the session
- * created in this connection. */
- long session_timeout;
-
- /* OCSP response to be sent to the client, if requested. */
- CRYPTO_BUFFER *ocsp_response;
- };
-
-
- /* Nodejs compatibility section (hidden).
- *
- * These defines exist for node.js, with the hope that we can eliminate the
- * need for them over time. */
- #define SSLerr(function, reason) \
- ERR_put_error(ERR_LIB_SSL, 0, reason, __FILE__, __LINE__)
-
-
- /* Preprocessor compatibility section (hidden).
- *
- * Historically, a number of APIs were implemented in OpenSSL as macros and
- * constants to 'ctrl' functions. To avoid breaking #ifdefs in consumers, this
- * section defines a number of legacy macros.
- *
- * Although using either the CTRL values or their wrapper macros in #ifdefs is
- * still supported, the CTRL values may not be passed to |SSL_ctrl| and
- * |SSL_CTX_ctrl|. Call the functions (previously wrapper macros) instead.
- *
- * See PORTING.md in the BoringSSL source tree for a table of corresponding
- * functions.
- * https://boringssl.googlesource.com/boringssl/+/master/PORTING.md#Replacements-for-values
- */
-
- #define DTLS_CTRL_GET_TIMEOUT doesnt_exist
- #define DTLS_CTRL_HANDLE_TIMEOUT doesnt_exist
- #define SSL_CTRL_CHAIN doesnt_exist
- #define SSL_CTRL_CHAIN_CERT doesnt_exist
- #define SSL_CTRL_CHANNEL_ID doesnt_exist
- #define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS doesnt_exist
- #define SSL_CTRL_CLEAR_MODE doesnt_exist
- #define SSL_CTRL_CLEAR_OPTIONS doesnt_exist
- #define SSL_CTRL_EXTRA_CHAIN_CERT doesnt_exist
- #define SSL_CTRL_GET_CHAIN_CERTS doesnt_exist
- #define SSL_CTRL_GET_CHANNEL_ID doesnt_exist
- #define SSL_CTRL_GET_CLIENT_CERT_TYPES doesnt_exist
- #define SSL_CTRL_GET_EXTRA_CHAIN_CERTS doesnt_exist
- #define SSL_CTRL_GET_MAX_CERT_LIST doesnt_exist
- #define SSL_CTRL_GET_NUM_RENEGOTIATIONS doesnt_exist
- #define SSL_CTRL_GET_READ_AHEAD doesnt_exist
- #define SSL_CTRL_GET_RI_SUPPORT doesnt_exist
- #define SSL_CTRL_GET_SESSION_REUSED doesnt_exist
- #define SSL_CTRL_GET_SESS_CACHE_MODE doesnt_exist
- #define SSL_CTRL_GET_SESS_CACHE_SIZE doesnt_exist
- #define SSL_CTRL_GET_TLSEXT_TICKET_KEYS doesnt_exist
- #define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS doesnt_exist
- #define SSL_CTRL_MODE doesnt_exist
- #define SSL_CTRL_NEED_TMP_RSA doesnt_exist
- #define SSL_CTRL_OPTIONS doesnt_exist
- #define SSL_CTRL_SESS_NUMBER doesnt_exist
- #define SSL_CTRL_SET_CURVES doesnt_exist
- #define SSL_CTRL_SET_CURVES_LIST doesnt_exist
- #define SSL_CTRL_SET_MAX_CERT_LIST doesnt_exist
- #define SSL_CTRL_SET_MAX_SEND_FRAGMENT doesnt_exist
- #define SSL_CTRL_SET_MSG_CALLBACK doesnt_exist
- #define SSL_CTRL_SET_MSG_CALLBACK_ARG doesnt_exist
- #define SSL_CTRL_SET_MTU doesnt_exist
- #define SSL_CTRL_SET_READ_AHEAD doesnt_exist
- #define SSL_CTRL_SET_SESS_CACHE_MODE doesnt_exist
- #define SSL_CTRL_SET_SESS_CACHE_SIZE doesnt_exist
- #define SSL_CTRL_SET_TLSEXT_HOSTNAME doesnt_exist
- #define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG doesnt_exist
- #define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB doesnt_exist
- #define SSL_CTRL_SET_TLSEXT_TICKET_KEYS doesnt_exist
- #define SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB doesnt_exist
- #define SSL_CTRL_SET_TMP_DH doesnt_exist
- #define SSL_CTRL_SET_TMP_DH_CB doesnt_exist
- #define SSL_CTRL_SET_TMP_ECDH doesnt_exist
- #define SSL_CTRL_SET_TMP_ECDH_CB doesnt_exist
- #define SSL_CTRL_SET_TMP_RSA doesnt_exist
- #define SSL_CTRL_SET_TMP_RSA_CB doesnt_exist
-
- #define DTLSv1_get_timeout DTLSv1_get_timeout
- #define DTLSv1_handle_timeout DTLSv1_handle_timeout
- #define SSL_CTX_add0_chain_cert SSL_CTX_add0_chain_cert
- #define SSL_CTX_add1_chain_cert SSL_CTX_add1_chain_cert
- #define SSL_CTX_add_extra_chain_cert SSL_CTX_add_extra_chain_cert
- #define SSL_CTX_clear_extra_chain_certs SSL_CTX_clear_extra_chain_certs
- #define SSL_CTX_clear_chain_certs SSL_CTX_clear_chain_certs
- #define SSL_CTX_clear_mode SSL_CTX_clear_mode
- #define SSL_CTX_clear_options SSL_CTX_clear_options
- #define SSL_CTX_get0_chain_certs SSL_CTX_get0_chain_certs
- #define SSL_CTX_get_extra_chain_certs SSL_CTX_get_extra_chain_certs
- #define SSL_CTX_get_max_cert_list SSL_CTX_get_max_cert_list
- #define SSL_CTX_get_mode SSL_CTX_get_mode
- #define SSL_CTX_get_options SSL_CTX_get_options
- #define SSL_CTX_get_read_ahead SSL_CTX_get_read_ahead
- #define SSL_CTX_get_session_cache_mode SSL_CTX_get_session_cache_mode
- #define SSL_CTX_get_tlsext_ticket_keys SSL_CTX_get_tlsext_ticket_keys
- #define SSL_CTX_need_tmp_RSA SSL_CTX_need_tmp_RSA
- #define SSL_CTX_sess_get_cache_size SSL_CTX_sess_get_cache_size
- #define SSL_CTX_sess_number SSL_CTX_sess_number
- #define SSL_CTX_sess_set_cache_size SSL_CTX_sess_set_cache_size
- #define SSL_CTX_set0_chain SSL_CTX_set0_chain
- #define SSL_CTX_set1_chain SSL_CTX_set1_chain
- #define SSL_CTX_set1_curves SSL_CTX_set1_curves
- #define SSL_CTX_set_max_cert_list SSL_CTX_set_max_cert_list
- #define SSL_CTX_set_max_send_fragment SSL_CTX_set_max_send_fragment
- #define SSL_CTX_set_mode SSL_CTX_set_mode
- #define SSL_CTX_set_msg_callback_arg SSL_CTX_set_msg_callback_arg
- #define SSL_CTX_set_options SSL_CTX_set_options
- #define SSL_CTX_set_read_ahead SSL_CTX_set_read_ahead
- #define SSL_CTX_set_session_cache_mode SSL_CTX_set_session_cache_mode
- #define SSL_CTX_set_tlsext_servername_arg SSL_CTX_set_tlsext_servername_arg
- #define SSL_CTX_set_tlsext_servername_callback \
- SSL_CTX_set_tlsext_servername_callback
- #define SSL_CTX_set_tlsext_ticket_key_cb SSL_CTX_set_tlsext_ticket_key_cb
- #define SSL_CTX_set_tlsext_ticket_keys SSL_CTX_set_tlsext_ticket_keys
- #define SSL_CTX_set_tmp_dh SSL_CTX_set_tmp_dh
- #define SSL_CTX_set_tmp_ecdh SSL_CTX_set_tmp_ecdh
- #define SSL_CTX_set_tmp_rsa SSL_CTX_set_tmp_rsa
- #define SSL_add0_chain_cert SSL_add0_chain_cert
- #define SSL_add1_chain_cert SSL_add1_chain_cert
- #define SSL_clear_chain_certs SSL_clear_chain_certs
- #define SSL_clear_mode SSL_clear_mode
- #define SSL_clear_options SSL_clear_options
- #define SSL_get0_certificate_types SSL_get0_certificate_types
- #define SSL_get0_chain_certs SSL_get0_chain_certs
- #define SSL_get_max_cert_list SSL_get_max_cert_list
- #define SSL_get_mode SSL_get_mode
- #define SSL_get_options SSL_get_options
- #define SSL_get_secure_renegotiation_support \
- SSL_get_secure_renegotiation_support
- #define SSL_need_tmp_RSA SSL_need_tmp_RSA
- #define SSL_num_renegotiations SSL_num_renegotiations
- #define SSL_session_reused SSL_session_reused
- #define SSL_set0_chain SSL_set0_chain
- #define SSL_set1_chain SSL_set1_chain
- #define SSL_set1_curves SSL_set1_curves
- #define SSL_set_max_cert_list SSL_set_max_cert_list
- #define SSL_set_max_send_fragment SSL_set_max_send_fragment
- #define SSL_set_mode SSL_set_mode
- #define SSL_set_msg_callback_arg SSL_set_msg_callback_arg
- #define SSL_set_mtu SSL_set_mtu
- #define SSL_set_options SSL_set_options
- #define SSL_set_tlsext_host_name SSL_set_tlsext_host_name
- #define SSL_set_tmp_dh SSL_set_tmp_dh
- #define SSL_set_tmp_ecdh SSL_set_tmp_ecdh
- #define SSL_set_tmp_rsa SSL_set_tmp_rsa
- #define SSL_total_renegotiations SSL_total_renegotiations
-
-
- #if defined(__cplusplus)
- } /* extern C */
-
- extern "C++" {
-
- namespace bssl {
-
- BORINGSSL_MAKE_DELETER(SSL, SSL_free)
- BORINGSSL_MAKE_DELETER(SSL_CTX, SSL_CTX_free)
- BORINGSSL_MAKE_DELETER(SSL_SESSION, SSL_SESSION_free)
-
- } // namespace bssl
-
- } /* extern C++ */
-
- #endif
-
- #define SSL_R_APP_DATA_IN_HANDSHAKE 100
- #define SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT 101
- #define SSL_R_BAD_ALERT 102
- #define SSL_R_BAD_CHANGE_CIPHER_SPEC 103
- #define SSL_R_BAD_DATA_RETURNED_BY_CALLBACK 104
- #define SSL_R_BAD_DH_P_LENGTH 105
- #define SSL_R_BAD_DIGEST_LENGTH 106
- #define SSL_R_BAD_ECC_CERT 107
- #define SSL_R_BAD_ECPOINT 108
- #define SSL_R_BAD_HANDSHAKE_RECORD 109
- #define SSL_R_BAD_HELLO_REQUEST 110
- #define SSL_R_BAD_LENGTH 111
- #define SSL_R_BAD_PACKET_LENGTH 112
- #define SSL_R_BAD_RSA_ENCRYPT 113
- #define SSL_R_BAD_SIGNATURE 114
- #define SSL_R_BAD_SRTP_MKI_VALUE 115
- #define SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST 116
- #define SSL_R_BAD_SSL_FILETYPE 117
- #define SSL_R_BAD_WRITE_RETRY 118
- #define SSL_R_BIO_NOT_SET 119
- #define SSL_R_BN_LIB 120
- #define SSL_R_BUFFER_TOO_SMALL 121
- #define SSL_R_CA_DN_LENGTH_MISMATCH 122
- #define SSL_R_CA_DN_TOO_LONG 123
- #define SSL_R_CCS_RECEIVED_EARLY 124
- #define SSL_R_CERTIFICATE_VERIFY_FAILED 125
- #define SSL_R_CERT_CB_ERROR 126
- #define SSL_R_CERT_LENGTH_MISMATCH 127
- #define SSL_R_CHANNEL_ID_NOT_P256 128
- #define SSL_R_CHANNEL_ID_SIGNATURE_INVALID 129
- #define SSL_R_CIPHER_OR_HASH_UNAVAILABLE 130
- #define SSL_R_CLIENTHELLO_PARSE_FAILED 131
- #define SSL_R_CLIENTHELLO_TLSEXT 132
- #define SSL_R_CONNECTION_REJECTED 133
- #define SSL_R_CONNECTION_TYPE_NOT_SET 134
- #define SSL_R_CUSTOM_EXTENSION_ERROR 135
- #define SSL_R_DATA_LENGTH_TOO_LONG 136
- #define SSL_R_DECODE_ERROR 137
- #define SSL_R_DECRYPTION_FAILED 138
- #define SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC 139
- #define SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG 140
- #define SSL_R_DH_P_TOO_LONG 141
- #define SSL_R_DIGEST_CHECK_FAILED 142
- #define SSL_R_DTLS_MESSAGE_TOO_BIG 143
- #define SSL_R_ECC_CERT_NOT_FOR_SIGNING 144
- #define SSL_R_EMS_STATE_INCONSISTENT 145
- #define SSL_R_ENCRYPTED_LENGTH_TOO_LONG 146
- #define SSL_R_ERROR_ADDING_EXTENSION 147
- #define SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST 148
- #define SSL_R_ERROR_PARSING_EXTENSION 149
- #define SSL_R_EXCESSIVE_MESSAGE_SIZE 150
- #define SSL_R_EXTRA_DATA_IN_MESSAGE 151
- #define SSL_R_FRAGMENT_MISMATCH 152
- #define SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION 153
- #define SSL_R_HANDSHAKE_FAILURE_ON_CLIENT_HELLO 154
- #define SSL_R_HTTPS_PROXY_REQUEST 155
- #define SSL_R_HTTP_REQUEST 156
- #define SSL_R_INAPPROPRIATE_FALLBACK 157
- #define SSL_R_INVALID_COMMAND 158
- #define SSL_R_INVALID_MESSAGE 159
- #define SSL_R_INVALID_SSL_SESSION 160
- #define SSL_R_INVALID_TICKET_KEYS_LENGTH 161
- #define SSL_R_LENGTH_MISMATCH 162
- #define SSL_R_LIBRARY_HAS_NO_CIPHERS 163
- #define SSL_R_MISSING_EXTENSION 164
- #define SSL_R_MISSING_RSA_CERTIFICATE 165
- #define SSL_R_MISSING_TMP_DH_KEY 166
- #define SSL_R_MISSING_TMP_ECDH_KEY 167
- #define SSL_R_MIXED_SPECIAL_OPERATOR_WITH_GROUPS 168
- #define SSL_R_MTU_TOO_SMALL 169
- #define SSL_R_NEGOTIATED_BOTH_NPN_AND_ALPN 170
- #define SSL_R_NESTED_GROUP 171
- #define SSL_R_NO_CERTIFICATES_RETURNED 172
- #define SSL_R_NO_CERTIFICATE_ASSIGNED 173
- #define SSL_R_NO_CERTIFICATE_SET 174
- #define SSL_R_NO_CIPHERS_AVAILABLE 175
- #define SSL_R_NO_CIPHERS_PASSED 176
- #define SSL_R_NO_CIPHER_MATCH 177
- #define SSL_R_NO_COMPRESSION_SPECIFIED 178
- #define SSL_R_NO_METHOD_SPECIFIED 179
- #define SSL_R_NO_P256_SUPPORT 180
- #define SSL_R_NO_PRIVATE_KEY_ASSIGNED 181
- #define SSL_R_NO_RENEGOTIATION 182
- #define SSL_R_NO_REQUIRED_DIGEST 183
- #define SSL_R_NO_SHARED_CIPHER 184
- #define SSL_R_NULL_SSL_CTX 185
- #define SSL_R_NULL_SSL_METHOD_PASSED 186
- #define SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED 187
- #define SSL_R_OLD_SESSION_VERSION_NOT_RETURNED 188
- #define SSL_R_OUTPUT_ALIASES_INPUT 189
- #define SSL_R_PARSE_TLSEXT 190
- #define SSL_R_PATH_TOO_LONG 191
- #define SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE 192
- #define SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE 193
- #define SSL_R_PROTOCOL_IS_SHUTDOWN 194
- #define SSL_R_PSK_IDENTITY_NOT_FOUND 195
- #define SSL_R_PSK_NO_CLIENT_CB 196
- #define SSL_R_PSK_NO_SERVER_CB 197
- #define SSL_R_READ_TIMEOUT_EXPIRED 198
- #define SSL_R_RECORD_LENGTH_MISMATCH 199
- #define SSL_R_RECORD_TOO_LARGE 200
- #define SSL_R_RENEGOTIATION_ENCODING_ERR 201
- #define SSL_R_RENEGOTIATION_MISMATCH 202
- #define SSL_R_REQUIRED_CIPHER_MISSING 203
- #define SSL_R_RESUMED_EMS_SESSION_WITHOUT_EMS_EXTENSION 204
- #define SSL_R_RESUMED_NON_EMS_SESSION_WITH_EMS_EXTENSION 205
- #define SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING 206
- #define SSL_R_SERVERHELLO_TLSEXT 207
- #define SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED 208
- #define SSL_R_SESSION_MAY_NOT_BE_CREATED 209
- #define SSL_R_SIGNATURE_ALGORITHMS_EXTENSION_SENT_BY_SERVER 210
- #define SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES 211
- #define SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE 212
- #define SSL_R_SSL3_EXT_INVALID_SERVERNAME 213
- #define SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION 214
- #define SSL_R_SSL_HANDSHAKE_FAILURE 215
- #define SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG 216
- #define SSL_R_TLS_PEER_DID_NOT_RESPOND_WITH_CERTIFICATE_LIST 217
- #define SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG 218
- #define SSL_R_TOO_MANY_EMPTY_FRAGMENTS 219
- #define SSL_R_TOO_MANY_WARNING_ALERTS 220
- #define SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS 221
- #define SSL_R_UNEXPECTED_EXTENSION 222
- #define SSL_R_UNEXPECTED_MESSAGE 223
- #define SSL_R_UNEXPECTED_OPERATOR_IN_GROUP 224
- #define SSL_R_UNEXPECTED_RECORD 225
- #define SSL_R_UNINITIALIZED 226
- #define SSL_R_UNKNOWN_ALERT_TYPE 227
- #define SSL_R_UNKNOWN_CERTIFICATE_TYPE 228
- #define SSL_R_UNKNOWN_CIPHER_RETURNED 229
- #define SSL_R_UNKNOWN_CIPHER_TYPE 230
- #define SSL_R_UNKNOWN_DIGEST 231
- #define SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE 232
- #define SSL_R_UNKNOWN_PROTOCOL 233
- #define SSL_R_UNKNOWN_SSL_VERSION 234
- #define SSL_R_UNKNOWN_STATE 235
- #define SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED 236
- #define SSL_R_UNSUPPORTED_CIPHER 237
- #define SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM 238
- #define SSL_R_UNSUPPORTED_ELLIPTIC_CURVE 239
- #define SSL_R_UNSUPPORTED_PROTOCOL 240
- #define SSL_R_WRONG_CERTIFICATE_TYPE 241
- #define SSL_R_WRONG_CIPHER_RETURNED 242
- #define SSL_R_WRONG_CURVE 243
- #define SSL_R_WRONG_MESSAGE_TYPE 244
- #define SSL_R_WRONG_SIGNATURE_TYPE 245
- #define SSL_R_WRONG_SSL_VERSION 246
- #define SSL_R_WRONG_VERSION_NUMBER 247
- #define SSL_R_X509_LIB 248
- #define SSL_R_X509_VERIFICATION_SETUP_PROBLEMS 249
- #define SSL_R_SHUTDOWN_WHILE_IN_INIT 250
- #define SSL_R_INVALID_OUTER_RECORD_TYPE 251
- #define SSL_R_UNSUPPORTED_PROTOCOL_FOR_CUSTOM_KEY 252
- #define SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS 253
- #define SSL_R_DOWNGRADE_DETECTED 254
- #define SSL_R_BUFFERED_MESSAGES_ON_CIPHER_CHANGE 255
- #define SSL_R_INVALID_COMPRESSION_LIST 256
- #define SSL_R_DUPLICATE_EXTENSION 257
- #define SSL_R_MISSING_KEY_SHARE 258
- #define SSL_R_INVALID_ALPN_PROTOCOL 259
- #define SSL_R_TOO_MANY_KEY_UPDATES 260
- #define SSL_R_BLOCK_CIPHER_PAD_IS_WRONG 261
- #define SSL_R_NO_CIPHERS_SPECIFIED 262
- #define SSL_R_RENEGOTIATION_EMS_MISMATCH 263
- #define SSL_R_DUPLICATE_KEY_SHARE 264
- #define SSL_R_NO_GROUPS_SPECIFIED 265
- #define SSL_R_NO_SHARED_GROUP 266
- #define SSL_R_PRE_SHARED_KEY_MUST_BE_LAST 267
- #define SSL_R_OLD_SESSION_PRF_HASH_MISMATCH 268
- #define SSL_R_INVALID_SCT_LIST 269
- #define SSL_R_TOO_MUCH_SKIPPED_EARLY_DATA 270
- #define SSL_R_PSK_IDENTITY_BINDER_COUNT_MISMATCH 271
- #define SSL_R_CANNOT_PARSE_LEAF_CERT 272
- #define SSL_R_SSLV3_ALERT_CLOSE_NOTIFY 1000
- #define SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE 1010
- #define SSL_R_SSLV3_ALERT_BAD_RECORD_MAC 1020
- #define SSL_R_TLSV1_ALERT_DECRYPTION_FAILED 1021
- #define SSL_R_TLSV1_ALERT_RECORD_OVERFLOW 1022
- #define SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE 1030
- #define SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE 1040
- #define SSL_R_SSLV3_ALERT_NO_CERTIFICATE 1041
- #define SSL_R_SSLV3_ALERT_BAD_CERTIFICATE 1042
- #define SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE 1043
- #define SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED 1044
- #define SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED 1045
- #define SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN 1046
- #define SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER 1047
- #define SSL_R_TLSV1_ALERT_UNKNOWN_CA 1048
- #define SSL_R_TLSV1_ALERT_ACCESS_DENIED 1049
- #define SSL_R_TLSV1_ALERT_DECODE_ERROR 1050
- #define SSL_R_TLSV1_ALERT_DECRYPT_ERROR 1051
- #define SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION 1060
- #define SSL_R_TLSV1_ALERT_PROTOCOL_VERSION 1070
- #define SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY 1071
- #define SSL_R_TLSV1_ALERT_INTERNAL_ERROR 1080
- #define SSL_R_TLSV1_ALERT_INAPPROPRIATE_FALLBACK 1086
- #define SSL_R_TLSV1_ALERT_USER_CANCELLED 1090
- #define SSL_R_TLSV1_ALERT_NO_RENEGOTIATION 1100
- #define SSL_R_TLSV1_UNSUPPORTED_EXTENSION 1110
- #define SSL_R_TLSV1_CERTIFICATE_UNOBTAINABLE 1111
- #define SSL_R_TLSV1_UNRECOGNIZED_NAME 1112
- #define SSL_R_TLSV1_BAD_CERTIFICATE_STATUS_RESPONSE 1113
- #define SSL_R_TLSV1_BAD_CERTIFICATE_HASH_VALUE 1114
- #define SSL_R_TLSV1_UNKNOWN_PSK_IDENTITY 1115
- #define SSL_R_TLSV1_CERTIFICATE_REQUIRED 1116
-
- #endif /* OPENSSL_HEADER_SSL_H */
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