ssl/record/record_locl.h

   1 /* ssl/record/record_locl.h */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2015 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112
 113 /*****************************************************************************
 114  *                                                                           *
 115  * The following macros/functions are PRIVATE to the record layer. They      *
 116  * should NOT be used outside of the record layer.                           *
 117  *                                                                           *
 118  *****************************************************************************/
 119
 120 /* Functions/macros provided by the RECORD_LAYER component */
 121
 122 #define RECORD_LAYER_get_rbuf(rl)               (&(rl)->rbuf)
 123 #define RECORD_LAYER_get_wbuf(rl)               (&(rl)->wbuf)
 124 #define RECORD_LAYER_get_rrec(rl)               (&(rl)->rrec)
 125 #define RECORD_LAYER_get_wrec(rl)               (&(rl)->wrec)
 126 #define RECORD_LAYER_set_packet(rl, p)          ((rl)->packet = (p))
 127 #define RECORD_LAYER_reset_packet_length(rl)    ((rl)->packet_length = 0)
 128 #define RECORD_LAYER_get_rstate(rl)             ((rl)->rstate)
 129 #define RECORD_LAYER_set_rstate(rl, st)         ((rl)->rstate = (st))
 130 #define RECORD_LAYER_get_read_sequence(rl)      ((rl)->read_sequence)
 131 #define RECORD_LAYER_get_write_sequence(rl)     ((rl)->write_sequence)
 132 #define DTLS_RECORD_LAYER_get_r_epoch(rl)       ((rl)->d->r_epoch)
 133
 134 __owur int ssl3_read_n(SSL *s, int n, int max, int extend);
 135
 136 void RECORD_LAYER_set_write_sequence(RECORD_LAYER *rl, const unsigned char *ws);
 137 DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
 138                                       unsigned int *is_next_epoch);
 139 int dtls1_process_buffered_records(SSL *s);
 140 int dtls1_retrieve_buffered_record(SSL *s, record_pqueue *queue);
 141 int dtls1_buffer_record(SSL *s, record_pqueue *q,
 142                                unsigned char *priority);
 143 void ssl3_record_sequence_update(unsigned char *seq);
 144
 145 /* Functions provided by the DTLS1_BITMAP component */
 146
 147 int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap);
 148 void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap);
 149
 150
 151 /* Macros/functions provided by the SSL3_BUFFER component */
 152
 153 #define SSL3_BUFFER_get_buf(b)              ((b)->buf)
 154 #define SSL3_BUFFER_set_buf(b, n)           ((b)->buf = (n))
 155 #define SSL3_BUFFER_get_len(b)              ((b)->len)
 156 #define SSL3_BUFFER_set_len(b, l)           ((b)->len = (l))
 157 #define SSL3_BUFFER_get_left(b)             ((b)->left)
 158 #define SSL3_BUFFER_set_left(b, l)          ((b)->left = (l))
 159 #define SSL3_BUFFER_add_left(b, l)          ((b)->left += (l))
 160 #define SSL3_BUFFER_get_offset(b)           ((b)->offset)
 161 #define SSL3_BUFFER_set_offset(b, o)        ((b)->offset = (o))
 162 #define SSL3_BUFFER_add_offset(b, o)        ((b)->offset += (o))
 163 #define SSL3_BUFFER_is_initialised(b)       ((b)->buf != NULL)
 164
 165 void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, int n);
 166 void SSL3_BUFFER_release(SSL3_BUFFER *b);
 167 __owur int ssl3_setup_read_buffer(SSL *s);
 168 __owur int ssl3_setup_write_buffer(SSL *s);
 169 int ssl3_release_read_buffer(SSL *s);
 170 int ssl3_release_write_buffer(SSL *s);
 171
 172 /* Macros/functions provided by the SSL3_RECORD component */
 173
 174 #define SSL3_RECORD_get_type(r)                 ((r)->type)
 175 #define SSL3_RECORD_set_type(r, t)              ((r)->type = (t))
 176 #define SSL3_RECORD_get_length(r)               ((r)->length)
 177 #define SSL3_RECORD_set_length(r, l)            ((r)->length = (l))
 178 #define SSL3_RECORD_add_length(r, l)            ((r)->length += (l))
 179 #define SSL3_RECORD_get_data(r)                 ((r)->data)
 180 #define SSL3_RECORD_set_data(r, d)              ((r)->data = (d))
 181 #define SSL3_RECORD_get_input(r)                ((r)->input)
 182 #define SSL3_RECORD_set_input(r, i)             ((r)->input = (i))
 183 #define SSL3_RECORD_reset_input(r)              ((r)->input = (r)->data)
 184 #define SSL3_RECORD_get_seq_num(r)              ((r)->seq_num)
 185 #define SSL3_RECORD_get_off(r)                  ((r)->off)
 186 #define SSL3_RECORD_set_off(r, o)               ((r)->off = (o))
 187 #define SSL3_RECORD_add_off(r, o)               ((r)->off += (o))
 188 #define SSL3_RECORD_get_epoch(r)                ((r)->epoch)
 189
 190 void SSL3_RECORD_clear(SSL3_RECORD *r);
 191 void SSL3_RECORD_release(SSL3_RECORD *r);
 192 int SSL3_RECORD_setup(SSL3_RECORD *r);
 193 void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num);
 194 int ssl3_get_record(SSL *s);
 195 __owur int ssl3_do_compress(SSL *ssl);
 196 __owur int ssl3_do_uncompress(SSL *ssl);
 197 void ssl3_cbc_copy_mac(unsigned char *out,
 198                        const SSL3_RECORD *rec, unsigned md_size);
 199 __owur int ssl3_cbc_remove_padding(const SSL *s,
 200                             SSL3_RECORD *rec,
 201                             unsigned block_size, unsigned mac_size);
 202 __owur int tls1_cbc_remove_padding(const SSL *s,
 203                             SSL3_RECORD *rec,
 204                             unsigned block_size, unsigned mac_size);
 205 int dtls1_process_record(SSL *s);
 206 __owur int dtls1_get_record(SSL *s);