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authorcvs2svn <admin@example.com>2015-03-08 16:48:49 +0000
committercvs2svn <admin@example.com>2015-03-08 16:48:49 +0000
commitdecf84ba5550c1656a7fdb51b5b81969590c3f03 (patch)
tree44872802e872bdfd60730fa9cf01d9d5751251c1 /src/lib/libssl/ssl3.h
parent7a8f138352aa4eb7b65ac4b1a5fe7630fbee1427 (diff)
downloadopenbsd-libressl-v2.1.5.tar.gz
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This commit was manufactured by cvs2git to create branch 'OPENBSD_5_7'.libressl-v2.1.5
Diffstat (limited to 'src/lib/libssl/ssl3.h')
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diff --git a/src/lib/libssl/ssl3.h b/src/lib/libssl/ssl3.h
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1/* $OpenBSD: ssl3.h,v 1.36 2015/02/22 15:54:27 jsing Exp $ */
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) 1998-2002 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 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116
117#ifndef HEADER_SSL3_H
118#define HEADER_SSL3_H
119
120#include <openssl/buffer.h>
121#include <openssl/evp.h>
122#include <openssl/ssl.h>
123
124#ifdef __cplusplus
125extern "C" {
126#endif
127
128/* TLS_EMPTY_RENEGOTIATION_INFO_SCSV from RFC 5746. */
129#define SSL3_CK_SCSV 0x030000FF
130
131/* TLS_FALLBACK_SCSV from draft-ietf-tls-downgrade-scsv-03. */
132#define SSL3_CK_FALLBACK_SCSV 0x03005600
133
134#define SSL3_CK_RSA_NULL_MD5 0x03000001
135#define SSL3_CK_RSA_NULL_SHA 0x03000002
136#define SSL3_CK_RSA_RC4_40_MD5 0x03000003
137#define SSL3_CK_RSA_RC4_128_MD5 0x03000004
138#define SSL3_CK_RSA_RC4_128_SHA 0x03000005
139#define SSL3_CK_RSA_RC2_40_MD5 0x03000006
140#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
141#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
142#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
143#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
144
145#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
146#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
147#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
148#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
149#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
150#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
151
152#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
153#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
154#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
155#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
156#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
157#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
158
159#define SSL3_CK_ADH_RC4_40_MD5 0x03000017
160#define SSL3_CK_ADH_RC4_128_MD5 0x03000018
161#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
162#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
163#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
164
165/* VRS Additional Kerberos5 entries
166 */
167#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
168#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
169#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
170#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
171#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
172#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
173#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
174#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
175
176#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
177#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
178#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
179#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
180#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
181#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
182
183#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
184#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
185#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
186#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
187#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
188#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
189#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
190#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
191#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
192#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
193
194#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
195#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
196#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
197#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
198#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
199#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
200
201#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
202#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
203#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
204#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
205#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
206#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
207
208#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
209#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
210#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
211#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
212#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
213
214#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
215#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
216#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
217#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
218#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
219#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
220#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
221#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
222
223#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
224#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
225#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
226#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
227#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
228#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
229
230#define SSL3_SSL_SESSION_ID_LENGTH 32
231#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
232
233#define SSL3_MASTER_SECRET_SIZE 48
234#define SSL3_RANDOM_SIZE 32
235#define SSL3_SEQUENCE_SIZE 8
236#define SSL3_SESSION_ID_SIZE 32
237#define SSL3_CIPHER_VALUE_SIZE 2
238
239#define SSL3_RT_HEADER_LENGTH 5
240#define SSL3_HM_HEADER_LENGTH 4
241
242#define SSL3_ALIGN_PAYLOAD 8
243
244/* This is the maximum MAC (digest) size used by the SSL library.
245 * Currently maximum of 20 is used by SHA1, but we reserve for
246 * future extension for 512-bit hashes.
247 */
248
249#define SSL3_RT_MAX_MD_SIZE 64
250
251/* Maximum block size used in all ciphersuites. Currently 16 for AES.
252 */
253
254#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
255
256#define SSL3_RT_MAX_EXTRA (16384)
257
258/* Maximum plaintext length: defined by SSL/TLS standards */
259#define SSL3_RT_MAX_PLAIN_LENGTH 16384
260/* Maximum compression overhead: defined by SSL/TLS standards */
261#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
262
263/* The standards give a maximum encryption overhead of 1024 bytes.
264 * In practice the value is lower than this. The overhead is the maximum
265 * number of padding bytes (256) plus the mac size.
266 */
267#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
268
269/* OpenSSL currently only uses a padding length of at most one block so
270 * the send overhead is smaller.
271 */
272
273#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
274 (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
275
276/* If compression isn't used don't include the compression overhead */
277#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
278#define SSL3_RT_MAX_ENCRYPTED_LENGTH \
279 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
280#define SSL3_RT_MAX_PACKET_SIZE \
281 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
282
283#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
284#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
285
286#define SSL3_VERSION 0x0300
287#define SSL3_VERSION_MAJOR 0x03
288#define SSL3_VERSION_MINOR 0x00
289
290#define SSL3_RT_CHANGE_CIPHER_SPEC 20
291#define SSL3_RT_ALERT 21
292#define SSL3_RT_HANDSHAKE 22
293#define SSL3_RT_APPLICATION_DATA 23
294#define TLS1_RT_HEARTBEAT 24
295
296#define SSL3_AL_WARNING 1
297#define SSL3_AL_FATAL 2
298
299#define SSL3_AD_CLOSE_NOTIFY 0
300#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
301#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
302#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
303#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
304#define SSL3_AD_NO_CERTIFICATE 41
305#define SSL3_AD_BAD_CERTIFICATE 42
306#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
307#define SSL3_AD_CERTIFICATE_REVOKED 44
308#define SSL3_AD_CERTIFICATE_EXPIRED 45
309#define SSL3_AD_CERTIFICATE_UNKNOWN 46
310#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
311
312#define TLS1_HB_REQUEST 1
313#define TLS1_HB_RESPONSE 2
314
315#ifndef OPENSSL_NO_SSL_INTERN
316
317typedef struct ssl3_record_st {
318/*r */ int type; /* type of record */
319/*rw*/ unsigned int length; /* How many bytes available */
320/*r */ unsigned int off; /* read/write offset into 'buf' */
321/*rw*/ unsigned char *data; /* pointer to the record data */
322/*rw*/ unsigned char *input; /* where the decode bytes are */
323/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
324/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
325} SSL3_RECORD;
326
327typedef struct ssl3_buffer_st {
328 unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
329 * see ssl3_setup_buffers() */
330 size_t len; /* buffer size */
331 int offset; /* where to 'copy from' */
332 int left; /* how many bytes left */
333} SSL3_BUFFER;
334
335#endif
336
337#define SSL3_CT_RSA_SIGN 1
338#define SSL3_CT_DSS_SIGN 2
339#define SSL3_CT_RSA_FIXED_DH 3
340#define SSL3_CT_DSS_FIXED_DH 4
341#define SSL3_CT_RSA_EPHEMERAL_DH 5
342#define SSL3_CT_DSS_EPHEMERAL_DH 6
343#define SSL3_CT_FORTEZZA_DMS 20
344/* SSL3_CT_NUMBER is used to size arrays and it must be large
345 * enough to contain all of the cert types defined either for
346 * SSLv3 and TLSv1.
347 */
348#define SSL3_CT_NUMBER 11
349
350
351#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
352#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
353#define SSL3_FLAGS_POP_BUFFER 0x0004
354#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
355#define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
356#define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020
357#define SSL3_FLAGS_CCS_OK 0x0080
358
359/* SSL3_FLAGS_SGC_RESTART_DONE is set when we
360 * restart a handshake because of MS SGC and so prevents us
361 * from restarting the handshake in a loop. It's reset on a
362 * renegotiation, so effectively limits the client to one restart
363 * per negotiation. This limits the possibility of a DDoS
364 * attack where the client handshakes in a loop using SGC to
365 * restart. Servers which permit renegotiation can still be
366 * effected, but we can't prevent that.
367 */
368#define SSL3_FLAGS_SGC_RESTART_DONE 0x0040
369
370#ifndef OPENSSL_NO_SSL_INTERN
371
372typedef struct ssl3_state_st {
373 long flags;
374 int delay_buf_pop_ret;
375
376 unsigned char read_sequence[SSL3_SEQUENCE_SIZE];
377 int read_mac_secret_size;
378 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
379 unsigned char write_sequence[SSL3_SEQUENCE_SIZE];
380 int write_mac_secret_size;
381 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
382
383 unsigned char server_random[SSL3_RANDOM_SIZE];
384 unsigned char client_random[SSL3_RANDOM_SIZE];
385
386 /* flags for countermeasure against known-IV weakness */
387 int need_empty_fragments;
388 int empty_fragment_done;
389
390 /* The value of 'extra' when the buffers were initialized */
391 int init_extra;
392
393 SSL3_BUFFER rbuf; /* read IO goes into here */
394 SSL3_BUFFER wbuf; /* write IO goes into here */
395
396 SSL3_RECORD rrec; /* each decoded record goes in here */
397 SSL3_RECORD wrec; /* goes out from here */
398
399 /* storage for Alert/Handshake protocol data received but not
400 * yet processed by ssl3_read_bytes: */
401 unsigned char alert_fragment[2];
402 unsigned int alert_fragment_len;
403 unsigned char handshake_fragment[4];
404 unsigned int handshake_fragment_len;
405
406 /* partial write - check the numbers match */
407 unsigned int wnum; /* number of bytes sent so far */
408 int wpend_tot; /* number bytes written */
409 int wpend_type;
410 int wpend_ret; /* number of bytes submitted */
411 const unsigned char *wpend_buf;
412
413 /* used during startup, digest all incoming/outgoing packets */
414 BIO *handshake_buffer;
415 /* When set of handshake digests is determined, buffer is hashed
416 * and freed and MD_CTX-es for all required digests are stored in
417 * this array */
418 EVP_MD_CTX **handshake_dgst;
419 /* this is set whenerver we see a change_cipher_spec message
420 * come in when we are not looking for one */
421 int change_cipher_spec;
422
423 int warn_alert;
424 int fatal_alert;
425 /* we allow one fatal and one warning alert to be outstanding,
426 * send close alert via the warning alert */
427 int alert_dispatch;
428 unsigned char send_alert[2];
429
430 /* This flag is set when we should renegotiate ASAP, basically when
431 * there is no more data in the read or write buffers */
432 int renegotiate;
433 int total_renegotiations;
434 int num_renegotiations;
435
436 int in_read_app_data;
437
438 struct {
439 /* actually only needs to be 16+20 */
440 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
441
442 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
443 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
444 int finish_md_len;
445 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
446 int peer_finish_md_len;
447
448 unsigned long message_size;
449 int message_type;
450
451 /* used to hold the new cipher we are going to use */
452 const SSL_CIPHER *new_cipher;
453 DH *dh;
454
455 EC_KEY *ecdh; /* holds short lived ECDH key */
456
457 /* used when SSL_ST_FLUSH_DATA is entered */
458 int next_state;
459
460 int reuse_message;
461
462 /* used for certificate requests */
463 int cert_req;
464 int ctype_num;
465 char ctype[SSL3_CT_NUMBER];
466 STACK_OF(X509_NAME) *ca_names;
467
468 int key_block_length;
469 unsigned char *key_block;
470
471 const EVP_CIPHER *new_sym_enc;
472 const EVP_AEAD *new_aead;
473 const EVP_MD *new_hash;
474 int new_mac_pkey_type;
475 int new_mac_secret_size;
476 int cert_request;
477 } tmp;
478
479 /* Connection binding to prevent renegotiation attacks */
480 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
481 unsigned char previous_client_finished_len;
482 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
483 unsigned char previous_server_finished_len;
484 int send_connection_binding; /* TODOEKR */
485
486 /* Set if we saw the Next Protocol Negotiation extension from our peer.
487 */
488 int next_proto_neg_seen;
489
490 /*
491 * ALPN information
492 * (we are in the process of transitioning from NPN to ALPN).
493 */
494
495 /*
496 * In a server these point to the selected ALPN protocol after the
497 * ClientHello has been processed. In a client these contain the
498 * protocol that the server selected once the ServerHello has been
499 * processed.
500 */
501 unsigned char *alpn_selected;
502 unsigned int alpn_selected_len;
503
504 /* This is set to true if we believe that this is a version of Safari
505 * running on OS X 10.6 or newer. We wish to know this because Safari
506 * on 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */
507 char is_probably_safari;
508} SSL3_STATE;
509
510#endif
511
512/* SSLv3 */
513/*client */
514/* extra state */
515#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
516/* write to server */
517#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
518#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
519/* read from server */
520#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
521#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
522#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
523#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
524#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
525#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
526#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
527#define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
528#define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
529#define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
530#define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
531#define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
532/* write to server */
533#define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
534#define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
535#define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
536#define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
537#define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
538#define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
539#define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
540#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
541#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
542#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
543#define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
544#define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
545#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
546#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
547/* read from server */
548#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
549#define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
550#define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
551#define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
552#define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT)
553#define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT)
554#define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT)
555#define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT)
556
557/* server */
558/* extra state */
559#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
560/* read from client */
561/* Do not change the number values, they do matter */
562#define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
563#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
564#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
565/* write to client */
566#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
567#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
568#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
569#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
570#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
571#define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
572#define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
573#define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
574#define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
575#define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
576#define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
577#define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
578#define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
579#define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
580#define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
581/* read from client */
582#define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
583#define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
584#define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
585#define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
586#define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
587#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
588#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
589#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
590#define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
591#define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
592#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
593#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
594/* write to client */
595#define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
596#define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
597#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
598#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
599#define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT)
600#define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT)
601#define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT)
602#define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT)
603
604#define SSL3_MT_HELLO_REQUEST 0
605#define SSL3_MT_CLIENT_HELLO 1
606#define SSL3_MT_SERVER_HELLO 2
607#define SSL3_MT_NEWSESSION_TICKET 4
608#define SSL3_MT_CERTIFICATE 11
609#define SSL3_MT_SERVER_KEY_EXCHANGE 12
610#define SSL3_MT_CERTIFICATE_REQUEST 13
611#define SSL3_MT_SERVER_DONE 14
612#define SSL3_MT_CERTIFICATE_VERIFY 15
613#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
614#define SSL3_MT_FINISHED 20
615#define SSL3_MT_CERTIFICATE_STATUS 22
616
617#define SSL3_MT_NEXT_PROTO 67
618
619#define DTLS1_MT_HELLO_VERIFY_REQUEST 3
620
621#define SSL3_MT_CCS 1
622
623/* These are used when changing over to a new cipher */
624#define SSL3_CC_READ 0x01
625#define SSL3_CC_WRITE 0x02
626#define SSL3_CC_CLIENT 0x10
627#define SSL3_CC_SERVER 0x20
628#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
629#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
630#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
631#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
632
633#ifdef __cplusplus
634}
635#endif
636#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-15 06:25:40 +0000