1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright (c) 1998-2015 The OpenSSL Project. All rights reserved.
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
86 * 6. Redistributions of any form whatsoever must retain the following
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
112 /*****************************************************************************
114 * The following macros/functions are PRIVATE to the record layer. They *
115 * should NOT be used outside of the record layer. *
117 *****************************************************************************/
119 /* Functions/macros provided by the RECORD_LAYER component */
121 #define RECORD_LAYER_get_rbuf(rl) (&(rl)->rbuf)
122 #define RECORD_LAYER_get_wbuf(rl) ((rl)->wbuf)
123 #define RECORD_LAYER_get_rrec(rl) ((rl)->rrec)
124 #define RECORD_LAYER_get_wrec(rl) (&(rl)->wrec)
125 #define RECORD_LAYER_set_packet(rl, p) ((rl)->packet = (p))
126 #define RECORD_LAYER_reset_packet_length(rl) ((rl)->packet_length = 0)
127 #define RECORD_LAYER_get_rstate(rl) ((rl)->rstate)
128 #define RECORD_LAYER_set_rstate(rl, st) ((rl)->rstate = (st))
129 #define RECORD_LAYER_get_read_sequence(rl) ((rl)->read_sequence)
130 #define RECORD_LAYER_get_write_sequence(rl) ((rl)->write_sequence)
131 #define RECORD_LAYER_get_numrpipes(rl) ((rl)->numrpipes)
132 #define RECORD_LAYER_set_numrpipes(rl, n) ((rl)->numrpipes = (n))
133 #define DTLS_RECORD_LAYER_get_r_epoch(rl) ((rl)->d->r_epoch)
135 __owur int ssl3_read_n(SSL *s, int n, int max, int extend, int clearold);
137 void RECORD_LAYER_set_write_sequence(RECORD_LAYER *rl, const unsigned char *ws);
138 DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
139 unsigned int *is_next_epoch);
140 int dtls1_process_buffered_records(SSL *s);
141 int dtls1_retrieve_buffered_record(SSL *s, record_pqueue *queue);
142 int dtls1_buffer_record(SSL *s, record_pqueue *q,
143 unsigned char *priority);
144 void ssl3_record_sequence_update(unsigned char *seq);
146 /* Functions provided by the DTLS1_BITMAP component */
148 int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap);
149 void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap);
152 /* Macros/functions provided by the SSL3_BUFFER component */
154 #define SSL3_BUFFER_get_buf(b) ((b)->buf)
155 #define SSL3_BUFFER_set_buf(b, n) ((b)->buf = (n))
156 #define SSL3_BUFFER_get_len(b) ((b)->len)
157 #define SSL3_BUFFER_set_len(b, l) ((b)->len = (l))
158 #define SSL3_BUFFER_get_left(b) ((b)->left)
159 #define SSL3_BUFFER_set_left(b, l) ((b)->left = (l))
160 #define SSL3_BUFFER_add_left(b, l) ((b)->left += (l))
161 #define SSL3_BUFFER_get_offset(b) ((b)->offset)
162 #define SSL3_BUFFER_set_offset(b, o) ((b)->offset = (o))
163 #define SSL3_BUFFER_add_offset(b, o) ((b)->offset += (o))
164 #define SSL3_BUFFER_is_initialised(b) ((b)->buf != NULL)
166 void SSL3_BUFFER_clear(SSL3_BUFFER *b);
167 void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, int n);
168 void SSL3_BUFFER_release(SSL3_BUFFER *b);
169 __owur int ssl3_setup_read_buffer(SSL *s);
170 __owur int ssl3_setup_write_buffer(SSL *s, unsigned int numwpipes);
171 int ssl3_release_read_buffer(SSL *s);
172 int ssl3_release_write_buffer(SSL *s);
174 /* Macros/functions provided by the SSL3_RECORD component */
176 #define SSL3_RECORD_get_type(r) ((r)->type)
177 #define SSL3_RECORD_set_type(r, t) ((r)->type = (t))
178 #define SSL3_RECORD_get_length(r) ((r)->length)
179 #define SSL3_RECORD_set_length(r, l) ((r)->length = (l))
180 #define SSL3_RECORD_add_length(r, l) ((r)->length += (l))
181 #define SSL3_RECORD_get_data(r) ((r)->data)
182 #define SSL3_RECORD_set_data(r, d) ((r)->data = (d))
183 #define SSL3_RECORD_get_input(r) ((r)->input)
184 #define SSL3_RECORD_set_input(r, i) ((r)->input = (i))
185 #define SSL3_RECORD_reset_input(r) ((r)->input = (r)->data)
186 #define SSL3_RECORD_get_seq_num(r) ((r)->seq_num)
187 #define SSL3_RECORD_get_off(r) ((r)->off)
188 #define SSL3_RECORD_set_off(r, o) ((r)->off = (o))
189 #define SSL3_RECORD_add_off(r, o) ((r)->off += (o))
190 #define SSL3_RECORD_get_epoch(r) ((r)->epoch)
191 #define SSL3_RECORD_is_sslv2_record(r) \
192 ((r)->rec_version == SSL2_VERSION)
194 void SSL3_RECORD_clear(SSL3_RECORD *r, unsigned int num_recs);
195 void SSL3_RECORD_release(SSL3_RECORD *r, unsigned int num_recs);
196 void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num);
197 int ssl3_get_record(SSL *s);
198 __owur int ssl3_do_compress(SSL *ssl, SSL3_RECORD *wr);
199 __owur int ssl3_do_uncompress(SSL *ssl, SSL3_RECORD *rr);
200 void ssl3_cbc_copy_mac(unsigned char *out,
201 const SSL3_RECORD *rec, unsigned md_size);
202 __owur int ssl3_cbc_remove_padding(SSL3_RECORD *rec,
203 unsigned block_size, unsigned mac_size);
204 __owur int tls1_cbc_remove_padding(const SSL *s,
206 unsigned block_size, unsigned mac_size);
207 int dtls1_process_record(SSL *s);
208 __owur int dtls1_get_record(SSL *s);