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/* ssl/record/record_locl.h */
/* 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) 1998-2015 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).
*
*/
/*****************************************************************************
* *
* The following macros/functions are PRIVATE to the record layer. They *
* should NOT be used outside of the record layer. *
* *
*****************************************************************************/
/* Functions/macros provided by the RECORD_LAYER component */
#define RECORD_LAYER_get_rbuf(rl) (&(rl)->rbuf)
#define RECORD_LAYER_get_wbuf(rl) (&(rl)->wbuf)
#define RECORD_LAYER_get_rrec(rl) (&(rl)->rrec)
#define RECORD_LAYER_get_wrec(rl) (&(rl)->wrec)
#define RECORD_LAYER_set_packet(rl, p) ((rl)->packet = (p))
#define RECORD_LAYER_reset_packet_length(rl) ((rl)->packet_length = 0)
#define RECORD_LAYER_get_rstate(rl) ((rl)->rstate)
#define RECORD_LAYER_set_rstate(rl, st) ((rl)->rstate = (st))
#define RECORD_LAYER_get_read_sequence(rl) ((rl)->read_sequence)
#define RECORD_LAYER_get_write_sequence(rl) ((rl)->write_sequence)
#define DTLS_RECORD_LAYER_get_r_epoch(rl) ((rl)->d->r_epoch)
__owur int ssl3_read_n(SSL *s, int n, int max, int extend);
void RECORD_LAYER_set_write_sequence(RECORD_LAYER *rl, const unsigned char *ws);
DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
unsigned int *is_next_epoch);
int dtls1_process_buffered_records(SSL *s);
int dtls1_retrieve_buffered_record(SSL *s, record_pqueue *queue);
int dtls1_buffer_record(SSL *s, record_pqueue *q,
unsigned char *priority);
void ssl3_record_sequence_update(unsigned char *seq);
/* Functions provided by the DTLS1_BITMAP component */
int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap);
void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap);
/* Macros/functions provided by the SSL3_BUFFER component */
#define SSL3_BUFFER_get_buf(b) ((b)->buf)
#define SSL3_BUFFER_set_buf(b, n) ((b)->buf = (n))
#define SSL3_BUFFER_get_len(b) ((b)->len)
#define SSL3_BUFFER_set_len(b, l) ((b)->len = (l))
#define SSL3_BUFFER_get_left(b) ((b)->left)
#define SSL3_BUFFER_set_left(b, l) ((b)->left = (l))
#define SSL3_BUFFER_add_left(b, l) ((b)->left += (l))
#define SSL3_BUFFER_get_offset(b) ((b)->offset)
#define SSL3_BUFFER_set_offset(b, o) ((b)->offset = (o))
#define SSL3_BUFFER_add_offset(b, o) ((b)->offset += (o))
#define SSL3_BUFFER_is_initialised(b) ((b)->buf != NULL)
void SSL3_BUFFER_clear(SSL3_BUFFER *b);
void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, int n);
void SSL3_BUFFER_release(SSL3_BUFFER *b);
__owur int ssl3_setup_read_buffer(SSL *s);
__owur int ssl3_setup_write_buffer(SSL *s);
int ssl3_release_read_buffer(SSL *s);
int ssl3_release_write_buffer(SSL *s);
/* Macros/functions provided by the SSL3_RECORD component */
#define SSL3_RECORD_get_type(r) ((r)->type)
#define SSL3_RECORD_set_type(r, t) ((r)->type = (t))
#define SSL3_RECORD_get_length(r) ((r)->length)
#define SSL3_RECORD_set_length(r, l) ((r)->length = (l))
#define SSL3_RECORD_add_length(r, l) ((r)->length += (l))
#define SSL3_RECORD_get_data(r) ((r)->data)
#define SSL3_RECORD_set_data(r, d) ((r)->data = (d))
#define SSL3_RECORD_get_input(r) ((r)->input)
#define SSL3_RECORD_set_input(r, i) ((r)->input = (i))
#define SSL3_RECORD_reset_input(r) ((r)->input = (r)->data)
#define SSL3_RECORD_get_seq_num(r) ((r)->seq_num)
#define SSL3_RECORD_get_off(r) ((r)->off)
#define SSL3_RECORD_set_off(r, o) ((r)->off = (o))
#define SSL3_RECORD_add_off(r, o) ((r)->off += (o))
#define SSL3_RECORD_get_epoch(r) ((r)->epoch)
#define SSL3_RECORD_is_sslv2_record(r) \
((r)->rec_version == SSL2_VERSION)
void SSL3_RECORD_clear(SSL3_RECORD *r);
void SSL3_RECORD_release(SSL3_RECORD *r);
int SSL3_RECORD_setup(SSL3_RECORD *r);
void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num);
int ssl3_get_record(SSL *s);
__owur int ssl3_do_compress(SSL *ssl);
__owur int ssl3_do_uncompress(SSL *ssl);
void ssl3_cbc_copy_mac(unsigned char *out,
const SSL3_RECORD *rec, unsigned md_size);
__owur int ssl3_cbc_remove_padding(const SSL *s,
SSL3_RECORD *rec,
unsigned block_size, unsigned mac_size);
__owur int tls1_cbc_remove_padding(const SSL *s,
SSL3_RECORD *rec,
unsigned block_size, unsigned mac_size);
int dtls1_process_record(SSL *s);
__owur int dtls1_get_record(SSL *s);
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