2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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.
116 /* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 * support (see RFC 4279) to OpenSSL.
127 * No patent licenses or other rights except those expressly stated in
128 * the OpenSSL open source license shall be deemed granted or received
129 * expressly, by implication, estoppel, or otherwise.
131 * No assurances are provided by Nokia that the Contribution does not
132 * infringe the patent or other intellectual property rights of any third
133 * party or that the license provides you with all the necessary rights
134 * to make use of the Contribution.
136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
143 #ifndef HEADER_SSL_LOCL_H
144 # define HEADER_SSL_LOCL_H
152 # include <openssl/buffer.h>
153 # ifndef OPENSSL_NO_COMP
154 # include <openssl/comp.h>
156 # include <openssl/bio.h>
157 # include <openssl/stack.h>
158 # ifndef OPENSSL_NO_RSA
159 # include <openssl/rsa.h>
161 # ifndef OPENSSL_NO_DSA
162 # include <openssl/dsa.h>
164 # include <openssl/err.h>
165 # include <openssl/ssl.h>
166 # include <openssl/symhacks.h>
168 #include "record/record.h"
169 #include "packet_locl.h"
171 # ifdef OPENSSL_BUILD_SHLIBSSL
172 # undef OPENSSL_EXTERN
173 # define OPENSSL_EXTERN OPENSSL_EXPORT
178 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
179 l|=(((unsigned long)(*((c)++)))<< 8), \
180 l|=(((unsigned long)(*((c)++)))<<16), \
181 l|=(((unsigned long)(*((c)++)))<<24))
183 /* NOTE - c is not incremented as per c2l */
184 # define c2ln(c,l1,l2,n) { \
188 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
189 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
190 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
191 case 5: l2|=((unsigned long)(*(--(c)))); \
192 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
193 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
194 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
195 case 1: l1|=((unsigned long)(*(--(c)))); \
199 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
200 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
201 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
202 *((c)++)=(unsigned char)(((l)>>24)&0xff))
204 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
205 l|=((unsigned long)(*((c)++)))<<16, \
206 l|=((unsigned long)(*((c)++)))<< 8, \
207 l|=((unsigned long)(*((c)++))))
209 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
210 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
211 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
212 *((c)++)=(unsigned char)(((l) )&0xff))
214 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
215 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
216 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
217 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
218 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
219 *((c)++)=(unsigned char)(((l) )&0xff))
221 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
222 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
223 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
224 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
225 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
226 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
227 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
228 *((c)++)=(unsigned char)(((l) )&0xff))
230 # define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \
231 l|=((BN_ULLONG)(*((c)++)))<<32, \
232 l|=((BN_ULLONG)(*((c)++)))<<24, \
233 l|=((BN_ULLONG)(*((c)++)))<<16, \
234 l|=((BN_ULLONG)(*((c)++)))<< 8, \
235 l|=((BN_ULLONG)(*((c)++))))
237 /* NOTE - c is not incremented as per l2c */
238 # define l2cn(l1,l2,c,n) { \
241 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
242 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
243 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
244 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
245 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
246 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
247 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
248 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
252 # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
253 (((unsigned int)(c[1])) )),c+=2)
254 # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
255 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
257 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
258 (((unsigned long)(c[1]))<< 8)| \
259 (((unsigned long)(c[2])) )),c+=3)
261 # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
262 c[1]=(unsigned char)(((l)>> 8)&0xff), \
263 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
267 # define SSL_DECRYPT 0
268 # define SSL_ENCRYPT 1
270 # define TWO_BYTE_BIT 0x80
271 # define SEC_ESC_BIT 0x40
272 # define TWO_BYTE_MASK 0x7fff
273 # define THREE_BYTE_MASK 0x3fff
275 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
276 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
277 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
280 * Define the Bitmasks for SSL_CIPHER.algorithms.
281 * This bits are used packed as dense as possible. If new methods/ciphers
282 * etc will be added, the bits a likely to change, so this information
283 * is for internal library use only, even though SSL_CIPHER.algorithms
284 * can be publicly accessed.
285 * Use the according functions for cipher management instead.
287 * The bit mask handling in the selection and sorting scheme in
288 * ssl_create_cipher_list() has only limited capabilities, reflecting
289 * that the different entities within are mutually exclusive:
290 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
293 /* Bits for algorithm_mkey (key exchange algorithm) */
294 /* RSA key exchange */
295 # define SSL_kRSA 0x00000001L
296 /* DH cert, RSA CA cert */
297 # define SSL_kDHr 0x00000002L
298 /* DH cert, DSA CA cert */
299 # define SSL_kDHd 0x00000004L
300 /* tmp DH key no DH cert */
301 # define SSL_kDHE 0x00000008L
303 # define SSL_kEDH SSL_kDHE
304 /* ECDH cert, RSA CA cert */
305 # define SSL_kECDHr 0x00000020L
306 /* ECDH cert, ECDSA CA cert */
307 # define SSL_kECDHe 0x00000040L
309 # define SSL_kECDHE 0x00000080L
311 # define SSL_kEECDH SSL_kECDHE
313 # define SSL_kPSK 0x00000100L
314 /* GOST key exchange */
315 # define SSL_kGOST 0x00000200L
317 # define SSL_kSRP 0x00000400L
319 # define SSL_kRSAPSK 0x00000800L
320 # define SSL_kECDHEPSK 0x00001000L
321 # define SSL_kDHEPSK 0x00002000L
325 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
327 /* Bits for algorithm_auth (server authentication) */
329 # define SSL_aRSA 0x00000001L
331 # define SSL_aDSS 0x00000002L
332 /* no auth (i.e. use ADH or AECDH) */
333 # define SSL_aNULL 0x00000004L
334 /* Fixed DH auth (kDHd or kDHr) */
335 # define SSL_aDH 0x00000008L
336 /* Fixed ECDH auth (kECDHe or kECDHr) */
337 # define SSL_aECDH 0x00000010L
339 # define SSL_aECDSA 0x00000040L
341 # define SSL_aPSK 0x00000080L
342 /* GOST R 34.10-2001 signature auth */
343 # define SSL_aGOST01 0x00000200L
345 # define SSL_aSRP 0x00000400L
347 /* Bits for algorithm_enc (symmetric encryption) */
348 # define SSL_DES 0x00000001L
349 # define SSL_3DES 0x00000002L
350 # define SSL_RC4 0x00000004L
351 # define SSL_RC2 0x00000008L
352 # define SSL_IDEA 0x00000010L
353 # define SSL_eNULL 0x00000020L
354 # define SSL_AES128 0x00000040L
355 # define SSL_AES256 0x00000080L
356 # define SSL_CAMELLIA128 0x00000100L
357 # define SSL_CAMELLIA256 0x00000200L
358 # define SSL_eGOST2814789CNT 0x00000400L
359 # define SSL_SEED 0x00000800L
360 # define SSL_AES128GCM 0x00001000L
361 # define SSL_AES256GCM 0x00002000L
362 # define SSL_AES128CCM 0x00004000L
363 # define SSL_AES256CCM 0x00008000L
364 # define SSL_AES128CCM8 0x00010000L
365 # define SSL_AES256CCM8 0x00020000L
367 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM|SSL_AES128CCM|SSL_AES256CCM|SSL_AES128CCM8|SSL_AES256CCM8)
368 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
370 /* Bits for algorithm_mac (symmetric authentication) */
372 # define SSL_MD5 0x00000001L
373 # define SSL_SHA1 0x00000002L
374 # define SSL_GOST94 0x00000004L
375 # define SSL_GOST89MAC 0x00000008L
376 # define SSL_SHA256 0x00000010L
377 # define SSL_SHA384 0x00000020L
378 /* Not a real MAC, just an indication it is part of cipher */
379 # define SSL_AEAD 0x00000040L
381 /* Bits for algorithm_ssl (protocol version) */
382 # define SSL_SSLV3 0x00000002L
383 # define SSL_TLSV1 SSL_SSLV3/* for now */
384 # define SSL_TLSV1_2 0x00000004L
386 /* Bits for algorithm2 (handshake digests and other extra flags) */
388 # define SSL_HANDSHAKE_MAC_MD5 0x10
389 # define SSL_HANDSHAKE_MAC_SHA 0x20
390 # define SSL_HANDSHAKE_MAC_GOST94 0x40
391 # define SSL_HANDSHAKE_MAC_SHA256 0x80
392 # define SSL_HANDSHAKE_MAC_SHA384 0x100
393 # define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
396 * When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX make
397 * sure to update this constant too
399 # define SSL_MAX_DIGEST 6
401 # define TLS1_PRF_DGST_SHIFT 10
402 # define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
403 # define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
404 # define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
405 # define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
406 # define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
407 # define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
410 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
411 * goes into algorithm2)
413 # define TLS1_STREAM_MAC 0x04
416 * Export and cipher strength information. For each cipher we have to decide
417 * whether it is exportable or not. This information is likely to change
418 * over time, since the export control rules are no static technical issue.
420 * Independent of the export flag the cipher strength is sorted into classes.
421 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
422 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
423 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
424 * since SSL_EXP64 could be similar to SSL_LOW.
425 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
426 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
427 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
430 # define SSL_EXP_MASK 0x00000003L
431 # define SSL_STRONG_MASK 0x000001fcL
433 # define SSL_NOT_EXP 0x00000001L
434 # define SSL_EXPORT 0x00000002L
436 # define SSL_STRONG_NONE 0x00000004L
437 # define SSL_EXP40 0x00000008L
438 # define SSL_MICRO (SSL_EXP40)
439 # define SSL_EXP56 0x00000010L
440 # define SSL_MINI (SSL_EXP56)
441 # define SSL_LOW 0x00000020L
442 # define SSL_MEDIUM 0x00000040L
443 # define SSL_HIGH 0x00000080L
444 # define SSL_FIPS 0x00000100L
446 /* we have used 000001ff - 23 bits left to go */
449 * Macros to check the export status and cipher strength for export ciphers.
450 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
451 * their meaning is different:
452 * *_EXPORT macros check the 'exportable' status.
453 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
455 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
456 * algorithm structure element to be passed (algorithms, algo_strength) and no
457 * typechecking can be done as they are all of type unsigned long, their
458 * direct usage is discouraged.
459 * Use the SSL_C_* macros instead.
461 # define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
462 # define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
463 # define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
464 # define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
465 # define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
466 # define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
468 # define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
469 (a) == SSL_DES ? 8 : 7)
470 # define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
471 # define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
473 # define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
475 /* Check if an SSL structure is using DTLS */
476 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
477 /* See if we need explicit IV */
478 # define SSL_USE_EXPLICIT_IV(s) \
479 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
481 * See if we use signature algorithms extension and signature algorithm
484 # define SSL_USE_SIGALGS(s) \
485 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
487 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
488 * apply to others in future.
490 # define SSL_USE_TLS1_2_CIPHERS(s) \
491 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
493 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
494 * flags because it may not be set to correct version yet.
496 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
497 ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \
498 (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION))
500 # ifdef TLSEXT_TYPE_encrypt_then_mac
501 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
503 # define SSL_USE_ETM(s) (0)
506 /* Mostly for SSLv3 */
507 # define SSL_PKEY_RSA_ENC 0
508 # define SSL_PKEY_RSA_SIGN 1
509 # define SSL_PKEY_DSA_SIGN 2
510 # define SSL_PKEY_DH_RSA 3
511 # define SSL_PKEY_DH_DSA 4
512 # define SSL_PKEY_ECC 5
513 # define SSL_PKEY_GOST01 7
514 # define SSL_PKEY_NUM 8
517 * SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
518 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
519 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
520 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
521 * SSL_aRSA <- RSA_ENC | RSA_SIGN
522 * SSL_aDSS <- DSA_SIGN
526 #define CERT_INVALID 0
527 #define CERT_PUBLIC_KEY 1
528 #define CERT_PRIVATE_KEY 2
532 /* CipherSuite length. SSLv3 and all TLS versions. */
533 #define TLS_CIPHER_LEN 2
534 /* used to hold info on the particular ciphers used */
535 struct ssl_cipher_st {
537 const char *name; /* text name */
538 unsigned long id; /* id, 4 bytes, first is version */
540 * changed in 0.9.9: these four used to be portions of a single value
543 unsigned long algorithm_mkey; /* key exchange algorithm */
544 unsigned long algorithm_auth; /* server authentication */
545 unsigned long algorithm_enc; /* symmetric encryption */
546 unsigned long algorithm_mac; /* symmetric authentication */
547 unsigned long algorithm_ssl; /* (major) protocol version */
548 unsigned long algo_strength; /* strength and export flags */
549 unsigned long algorithm2; /* Extra flags */
550 int strength_bits; /* Number of bits really used */
551 int alg_bits; /* Number of bits for algorithm */
554 /* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
555 struct ssl_method_st {
557 int (*ssl_new) (SSL *s);
558 void (*ssl_clear) (SSL *s);
559 void (*ssl_free) (SSL *s);
560 int (*ssl_accept) (SSL *s);
561 int (*ssl_connect) (SSL *s);
562 int (*ssl_read) (SSL *s, void *buf, int len);
563 int (*ssl_peek) (SSL *s, void *buf, int len);
564 int (*ssl_write) (SSL *s, const void *buf, int len);
565 int (*ssl_shutdown) (SSL *s);
566 int (*ssl_renegotiate) (SSL *s);
567 int (*ssl_renegotiate_check) (SSL *s);
568 long (*ssl_get_message) (SSL *s, int st1, int stn, int mt, long
570 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
571 unsigned char *buf, int len, int peek);
572 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
573 int (*ssl_dispatch_alert) (SSL *s);
574 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
575 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
576 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
577 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
578 int (*ssl_pending) (const SSL *s);
579 int (*num_ciphers) (void);
580 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
581 const struct ssl_method_st *(*get_ssl_method) (int version);
582 long (*get_timeout) (void);
583 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
584 int (*ssl_version) (void);
585 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
586 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
590 * Lets make this into an ASN.1 type structure as follows
591 * SSL_SESSION_ID ::= SEQUENCE {
592 * version INTEGER, -- structure version number
593 * SSLversion INTEGER, -- SSL version number
594 * Cipher OCTET STRING, -- the 3 byte cipher ID
595 * Session_ID OCTET STRING, -- the Session ID
596 * Master_key OCTET STRING, -- the master key
597 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
598 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
599 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
600 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
601 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
602 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
603 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
604 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
605 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
606 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
607 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
608 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
609 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
610 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
612 * Look in ssl/ssl_asn1.c for more details
613 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
615 struct ssl_session_st {
616 int ssl_version; /* what ssl version session info is being
618 int master_key_length;
619 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
620 /* session_id - valid? */
621 unsigned int session_id_length;
622 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
624 * this is used to determine whether the session is being reused in the
625 * appropriate context. It is up to the application to set this, via
628 unsigned int sid_ctx_length;
629 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
630 # ifndef OPENSSL_NO_PSK
631 char *psk_identity_hint;
635 * Used to indicate that session resumption is not allowed. Applications
636 * can also set this bit for a new session via not_resumable_session_cb
637 * to disable session caching and tickets.
640 /* This is the cert and type for the other end. */
643 /* Certificate chain of peer */
644 STACK_OF(X509) *peer_chain;
646 * when app_verify_callback accepts a session where the peer's
647 * certificate is not ok, we must remember the error for session reuse:
649 long verify_result; /* only for servers */
653 unsigned int compress_meth; /* Need to lookup the method */
654 const SSL_CIPHER *cipher;
655 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
656 * to load the 'cipher' structure */
657 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
658 CRYPTO_EX_DATA ex_data; /* application specific data */
660 * These are used to make removal of session-ids more efficient and to
661 * implement a maximum cache size.
663 struct ssl_session_st *prev, *next;
664 char *tlsext_hostname;
665 # ifndef OPENSSL_NO_EC
666 size_t tlsext_ecpointformatlist_length;
667 unsigned char *tlsext_ecpointformatlist; /* peer's list */
668 size_t tlsext_ellipticcurvelist_length;
669 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
670 # endif /* OPENSSL_NO_EC */
672 unsigned char *tlsext_tick; /* Session ticket */
673 size_t tlsext_ticklen; /* Session ticket length */
674 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
675 # ifndef OPENSSL_NO_SRP
681 /* Extended master secret support */
682 # define SSL_SESS_FLAG_EXTMS 0x1
685 # ifndef OPENSSL_NO_SRP
687 typedef struct srp_ctx_st {
688 /* param for all the callbacks */
690 /* set client Hello login callback */
691 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
692 /* set SRP N/g param callback for verification */
693 int (*SRP_verify_param_callback) (SSL *, void *);
694 /* set SRP client passwd callback */
695 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
697 BIGNUM *N, *g, *s, *B, *A;
701 unsigned long srp_Mask;
706 typedef struct ssl_comp_st SSL_COMP;
714 DECLARE_STACK_OF(SSL_COMP)
715 DECLARE_LHASH_OF(SSL_SESSION);
718 const SSL_METHOD *method;
719 STACK_OF(SSL_CIPHER) *cipher_list;
720 /* same as above but sorted for lookup */
721 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
722 struct x509_store_st /* X509_STORE */ *cert_store;
723 LHASH_OF(SSL_SESSION) *sessions;
725 * Most session-ids that will be cached, default is
726 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
728 unsigned long session_cache_size;
729 struct ssl_session_st *session_cache_head;
730 struct ssl_session_st *session_cache_tail;
732 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
733 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
734 * means only SSL_accept which cache SSL_SESSIONS.
736 uint32_t session_cache_mode;
738 * If timeout is not 0, it is the default timeout value set when
739 * SSL_new() is called. This has been put in to make life easier to set
742 long session_timeout;
744 * If this callback is not null, it will be called each time a session id
745 * is added to the cache. If this function returns 1, it means that the
746 * callback will do a SSL_SESSION_free() when it has finished using it.
747 * Otherwise, on 0, it means the callback has finished with it. If
748 * remove_session_cb is not null, it will be called when a session-id is
749 * removed from the cache. After the call, OpenSSL will
750 * SSL_SESSION_free() it.
752 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
753 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
754 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
755 unsigned char *data, int len, int *copy);
757 int sess_connect; /* SSL new conn - started */
758 int sess_connect_renegotiate; /* SSL reneg - requested */
759 int sess_connect_good; /* SSL new conne/reneg - finished */
760 int sess_accept; /* SSL new accept - started */
761 int sess_accept_renegotiate; /* SSL reneg - requested */
762 int sess_accept_good; /* SSL accept/reneg - finished */
763 int sess_miss; /* session lookup misses */
764 int sess_timeout; /* reuse attempt on timeouted session */
765 int sess_cache_full; /* session removed due to full cache */
766 int sess_hit; /* session reuse actually done */
767 int sess_cb_hit; /* session-id that was not in the cache was
768 * passed back via the callback. This
769 * indicates that the application is
770 * supplying session-id's from other
771 * processes - spooky :-) */
776 /* if defined, these override the X509_verify_cert() calls */
777 int (*app_verify_callback) (X509_STORE_CTX *, void *);
778 void *app_verify_arg;
780 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
781 * ('app_verify_callback' was called with just one argument)
784 /* Default password callback. */
785 pem_password_cb *default_passwd_callback;
787 /* Default password callback user data. */
788 void *default_passwd_callback_userdata;
790 /* get client cert callback */
791 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
793 /* cookie generate callback */
794 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
795 unsigned int *cookie_len);
797 /* verify cookie callback */
798 int (*app_verify_cookie_cb) (SSL *ssl, unsigned char *cookie,
799 unsigned int cookie_len);
801 CRYPTO_EX_DATA ex_data;
803 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
804 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
806 STACK_OF(X509) *extra_certs;
807 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
809 /* Default values used when no per-SSL value is defined follow */
811 /* used if SSL's info_callback is NULL */
812 void (*info_callback) (const SSL *ssl, int type, int val);
814 /* what we put in client cert requests */
815 STACK_OF(X509_NAME) *client_CA;
818 * Default values to use in SSL structures follow (these are copied by
826 struct cert_st /* CERT */ *cert;
829 /* callback that allows applications to peek at protocol messages */
830 void (*msg_callback) (int write_p, int version, int content_type,
831 const void *buf, size_t len, SSL *ssl, void *arg);
832 void *msg_callback_arg;
834 uint32_t verify_mode;
835 unsigned int sid_ctx_length;
836 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
837 /* called 'verify_callback' in the SSL */
838 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
840 /* Default generate session ID callback. */
841 GEN_SESSION_CB generate_session_id;
843 X509_VERIFY_PARAM *param;
848 * Maximum amount of data to send in one fragment. actual record size can
849 * be more than this due to padding and MAC overheads.
851 unsigned int max_send_fragment;
853 # ifndef OPENSSL_NO_ENGINE
855 * Engine to pass requests for client certs to
857 ENGINE *client_cert_engine;
860 /* TLS extensions servername callback */
861 int (*tlsext_servername_callback) (SSL *, int *, void *);
862 void *tlsext_servername_arg;
863 /* RFC 4507 session ticket keys */
864 unsigned char tlsext_tick_key_name[16];
865 unsigned char tlsext_tick_hmac_key[16];
866 unsigned char tlsext_tick_aes_key[16];
867 /* Callback to support customisation of ticket key setting */
868 int (*tlsext_ticket_key_cb) (SSL *ssl,
869 unsigned char *name, unsigned char *iv,
870 EVP_CIPHER_CTX *ectx,
871 HMAC_CTX *hctx, int enc);
873 /* certificate status request info */
874 /* Callback for status request */
875 int (*tlsext_status_cb) (SSL *ssl, void *arg);
876 void *tlsext_status_arg;
878 # ifndef OPENSSL_NO_PSK
879 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
881 unsigned int max_identity_len,
883 unsigned int max_psk_len);
884 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
886 unsigned int max_psk_len);
889 # ifndef OPENSSL_NO_SRP
890 SRP_CTX srp_ctx; /* ctx for SRP authentication */
893 # ifndef OPENSSL_NO_NEXTPROTONEG
894 /* Next protocol negotiation information */
895 /* (for experimental NPN extension). */
898 * For a server, this contains a callback function by which the set of
899 * advertised protocols can be provided.
901 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
902 unsigned int *len, void *arg);
903 void *next_protos_advertised_cb_arg;
905 * For a client, this contains a callback function that selects the next
906 * protocol from the list provided by the server.
908 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
909 unsigned char *outlen,
910 const unsigned char *in,
911 unsigned int inlen, void *arg);
912 void *next_proto_select_cb_arg;
916 * ALPN information (we are in the process of transitioning from NPN to
921 * For a server, this contains a callback function that allows the
922 * server to select the protocol for the connection.
923 * out: on successful return, this must point to the raw protocol
924 * name (without the length prefix).
925 * outlen: on successful return, this contains the length of |*out|.
926 * in: points to the client's list of supported protocols in
928 * inlen: the length of |in|.
930 int (*alpn_select_cb) (SSL *s,
931 const unsigned char **out,
932 unsigned char *outlen,
933 const unsigned char *in,
934 unsigned int inlen, void *arg);
935 void *alpn_select_cb_arg;
938 * For a client, this contains the list of supported protocols in wire
941 unsigned char *alpn_client_proto_list;
942 unsigned alpn_client_proto_list_len;
944 /* SRTP profiles we are willing to do from RFC 5764 */
945 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
947 * Callback for disabling session caching and ticket support on a session
948 * basis, depending on the chosen cipher.
950 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
951 # ifndef OPENSSL_NO_EC
952 /* EC extension values inherited by SSL structure */
953 size_t tlsext_ecpointformatlist_length;
954 unsigned char *tlsext_ecpointformatlist;
955 size_t tlsext_ellipticcurvelist_length;
956 unsigned char *tlsext_ellipticcurvelist;
957 # endif /* OPENSSL_NO_EC */
963 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
967 /* SSL_ST_CONNECT or SSL_ST_ACCEPT */
970 const SSL_METHOD *method;
972 * There are 2 BIO's even though they are normally both the same. This
973 * is so data can be read and written to different handlers
975 /* used by SSL_read */
977 /* used by SSL_write */
979 /* used during session-id reuse to concatenate messages */
982 * This holds a variable that indicates what we were doing when a 0 or -1
983 * is returned. This is needed for non-blocking IO so we know what
984 * request needs re-doing when in SSL_accept or SSL_connect
987 /* true when we are actually in SSL_accept() or SSL_connect() */
989 int (*handshake_func) (SSL *);
991 * Imagine that here's a boolean member "init" that is switched as soon
992 * as SSL_set_{accept/connect}_state is called for the first time, so
993 * that "state" and "handshake_func" are properly initialized. But as
994 * handshake_func is == 0 until then, we use this test instead of an
997 /* are we the server side? - mostly used by SSL_clear */
1000 * Generate a new session or reuse an old one.
1001 * NB: For servers, the 'new' session may actually be a previously
1002 * cached session or even the previous session unless
1003 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1006 /* don't send shutdown packets */
1008 /* we have shut things down, 0x01 sent, 0x02 for received */
1012 BUF_MEM *init_buf; /* buffer used during init */
1013 void *init_msg; /* pointer to handshake message body, set by
1014 * ssl3_get_message() */
1015 int init_num; /* amount read/written */
1016 int init_off; /* amount read/written */
1018 struct ssl3_state_st *s3; /* SSLv3 variables */
1019 struct dtls1_state_st *d1; /* DTLSv1 variables */
1021 /* callback that allows applications to peek at protocol messages */
1022 void (*msg_callback) (int write_p, int version, int content_type,
1023 const void *buf, size_t len, SSL *ssl, void *arg);
1024 void *msg_callback_arg;
1025 int hit; /* reusing a previous session */
1026 X509_VERIFY_PARAM *param;
1028 STACK_OF(SSL_CIPHER) *cipher_list;
1029 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1031 * These are the ones being used, the ones in SSL_SESSION are the ones to
1032 * be 'copied' into these ones
1035 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1036 EVP_MD_CTX *read_hash; /* used for mac generation */
1037 COMP_CTX *compress; /* compression */
1038 COMP_CTX *expand; /* uncompress */
1039 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1040 EVP_MD_CTX *write_hash; /* used for mac generation */
1043 /* This is used to hold the server certificate used */
1044 struct cert_st /* CERT */ *cert;
1046 * the session_id_context is used to ensure sessions are only reused in
1047 * the appropriate context
1049 unsigned int sid_ctx_length;
1050 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1051 /* This can also be in the session once a session is established */
1052 SSL_SESSION *session;
1053 /* Default generate session ID callback. */
1054 GEN_SESSION_CB generate_session_id;
1057 * 0 don't care about verify failure.
1058 * 1 fail if verify fails
1060 uint32_t verify_mode;
1061 /* fail if callback returns 0 */
1062 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1063 /* optional informational callback */
1064 void (*info_callback) (const SSL *ssl, int type, int val);
1065 /* error bytes to be written */
1069 # ifndef OPENSSL_NO_PSK
1070 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
1072 unsigned int max_identity_len,
1074 unsigned int max_psk_len);
1075 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
1077 unsigned int max_psk_len);
1081 * set this flag to 1 and a sleep(1) is put into all SSL_read() and
1082 * SSL_write() calls, good for nbio debuging :-)
1085 /* extra application data */
1087 CRYPTO_EX_DATA ex_data;
1088 /* for server side, keep the list of CA_dn we can use */
1089 STACK_OF(X509_NAME) *client_CA;
1091 /* protocol behaviour */
1097 /* what was passed, used for SSLv3/TLS rollback check */
1099 unsigned int max_send_fragment;
1101 /* TLS extension debug callback */
1102 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1103 unsigned char *data, int len, void *arg);
1104 void *tlsext_debug_arg;
1105 char *tlsext_hostname;
1107 * no further mod of servername
1108 * 0 : call the servername extension callback.
1109 * 1 : prepare 2, allow last ack just after in server callback.
1110 * 2 : don't call servername callback, no ack in server hello
1112 int servername_done;
1113 /* certificate status request info */
1114 /* Status type or -1 if no status type */
1115 int tlsext_status_type;
1116 /* Expect OCSP CertificateStatus message */
1117 int tlsext_status_expected;
1118 /* OCSP status request only */
1119 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1120 X509_EXTENSIONS *tlsext_ocsp_exts;
1121 /* OCSP response received or to be sent */
1122 unsigned char *tlsext_ocsp_resp;
1123 int tlsext_ocsp_resplen;
1124 /* RFC4507 session ticket expected to be received or sent */
1125 int tlsext_ticket_expected;
1126 # ifndef OPENSSL_NO_EC
1127 size_t tlsext_ecpointformatlist_length;
1129 unsigned char *tlsext_ecpointformatlist;
1130 size_t tlsext_ellipticcurvelist_length;
1132 unsigned char *tlsext_ellipticcurvelist;
1133 # endif /* OPENSSL_NO_EC */
1134 /* TLS Session Ticket extension override */
1135 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1136 /* TLS Session Ticket extension callback */
1137 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1138 void *tls_session_ticket_ext_cb_arg;
1139 /* TLS pre-shared secret session resumption */
1140 tls_session_secret_cb_fn tls_session_secret_cb;
1141 void *tls_session_secret_cb_arg;
1142 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1143 # ifndef OPENSSL_NO_NEXTPROTONEG
1145 * Next protocol negotiation. For the client, this is the protocol that
1146 * we sent in NextProtocol and is set when handling ServerHello
1147 * extensions. For a server, this is the client's selected_protocol from
1148 * NextProtocol and is set when handling the NextProtocol message, before
1149 * the Finished message.
1151 unsigned char *next_proto_negotiated;
1152 unsigned char next_proto_negotiated_len;
1154 # define session_ctx initial_ctx
1156 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1157 /* What's been chosen */
1158 SRTP_PROTECTION_PROFILE *srtp_profile;
1160 * Is use of the Heartbeat extension negotiated?
1163 * 2: enabled, but not allowed to send Requests
1165 unsigned int tlsext_heartbeat;
1166 /* Indicates if a HeartbeatRequest is in flight */
1167 unsigned int tlsext_hb_pending;
1168 /* HeartbeatRequest sequence number */
1169 unsigned int tlsext_hb_seq;
1171 * For a client, this contains the list of supported protocols in wire
1174 unsigned char *alpn_client_proto_list;
1175 unsigned alpn_client_proto_list_len;
1178 * 1 if we are renegotiating.
1179 * 2 if we are a server and are inside a handshake
1180 * (i.e. not just sending a HelloRequest)
1183 # ifndef OPENSSL_NO_SRP
1184 /* ctx for SRP authentication */
1188 * Callback for disabling session caching and ticket support on a session
1189 * basis, depending on the chosen cipher.
1191 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1193 RECORD_LAYER rlayer;
1197 typedef struct ssl3_state_st {
1199 int read_mac_secret_size;
1200 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1201 int write_mac_secret_size;
1202 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1203 unsigned char server_random[SSL3_RANDOM_SIZE];
1204 unsigned char client_random[SSL3_RANDOM_SIZE];
1205 /* flags for countermeasure against known-IV weakness */
1206 int need_empty_fragments;
1207 int empty_fragment_done;
1208 /* The value of 'extra' when the buffers were initialized */
1210 /* used during startup, digest all incoming/outgoing packets */
1211 BIO *handshake_buffer;
1213 * When set of handshake digests is determined, buffer is hashed and
1214 * freed and MD_CTX-es for all required digests are stored in this array
1216 EVP_MD_CTX **handshake_dgst;
1218 * Set whenever an expected ChangeCipherSpec message is processed.
1219 * Unset when the peer's Finished message is received.
1220 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1222 int change_cipher_spec;
1226 * we allow one fatal and one warning alert to be outstanding, send close
1227 * alert via the warning alert
1230 unsigned char send_alert[2];
1232 * This flag is set when we should renegotiate ASAP, basically when there
1233 * is no more data in the read or write buffers
1236 int total_renegotiations;
1237 int num_renegotiations;
1238 int in_read_app_data;
1240 /* actually only needs to be 16+20 */
1241 unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2];
1242 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1243 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1245 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1246 int peer_finish_md_len;
1247 unsigned long message_size;
1249 /* used to hold the new cipher we are going to use */
1250 const SSL_CIPHER *new_cipher;
1251 # ifndef OPENSSL_NO_DH
1254 # ifndef OPENSSL_NO_EC
1255 EC_KEY *ecdh; /* holds short lived ECDH key */
1257 /* used when SSL_ST_FLUSH_DATA is entered */
1260 /* used for certificate requests */
1263 char ctype[SSL3_CT_NUMBER];
1264 STACK_OF(X509_NAME) *ca_names;
1266 int key_block_length;
1267 unsigned char *key_block;
1268 const EVP_CIPHER *new_sym_enc;
1269 const EVP_MD *new_hash;
1270 int new_mac_pkey_type;
1271 int new_mac_secret_size;
1272 # ifndef OPENSSL_NO_COMP
1273 const SSL_COMP *new_compression;
1275 char *new_compression;
1278 /* Raw values of the cipher list from a client */
1279 unsigned char *ciphers_raw;
1280 size_t ciphers_rawlen;
1281 /* Temporary storage for premaster secret */
1284 #ifndef OPENSSL_NO_PSK
1285 /* Temporary storage for PSK key */
1290 * signature algorithms peer reports: e.g. supported signature
1291 * algorithms extension for server or as part of a certificate
1292 * request for client.
1294 unsigned char *peer_sigalgs;
1295 /* Size of above array */
1296 size_t peer_sigalgslen;
1297 /* Digest peer uses for signing */
1298 const EVP_MD *peer_md;
1299 /* Array of digests used for signing */
1300 const EVP_MD *md[SSL_PKEY_NUM];
1302 * Set if corresponding CERT_PKEY can be used with current
1303 * SSL session: e.g. appropriate curve, signature algorithms etc.
1304 * If zero it can't be used at all.
1306 uint32_t valid_flags[SSL_PKEY_NUM];
1308 * For servers the following masks are for the key and auth algorithms
1309 * that are supported by the certs below. For clients they are masks of
1310 * *disabled* algorithms based on the current session.
1312 unsigned long mask_k;
1313 unsigned long mask_a;
1314 unsigned long export_mask_k;
1315 unsigned long export_mask_a;
1317 unsigned long mask_ssl;
1320 /* Connection binding to prevent renegotiation attacks */
1321 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1322 unsigned char previous_client_finished_len;
1323 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1324 unsigned char previous_server_finished_len;
1325 int send_connection_binding; /* TODOEKR */
1327 # ifndef OPENSSL_NO_NEXTPROTONEG
1329 * Set if we saw the Next Protocol Negotiation extension from our peer.
1331 int next_proto_neg_seen;
1335 * ALPN information (we are in the process of transitioning from NPN to
1340 * In a server these point to the selected ALPN protocol after the
1341 * ClientHello has been processed. In a client these contain the protocol
1342 * that the server selected once the ServerHello has been processed.
1344 unsigned char *alpn_selected;
1345 unsigned alpn_selected_len;
1347 # ifndef OPENSSL_NO_EC
1349 * This is set to true if we believe that this is a version of Safari
1350 * running on OS X 10.6 or newer. We wish to know this because Safari on
1351 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1353 char is_probably_safari;
1354 # endif /* !OPENSSL_NO_EC */
1356 /* For clients: peer temporary key */
1357 # ifndef OPENSSL_NO_RSA
1360 # ifndef OPENSSL_NO_DH
1363 # ifndef OPENSSL_NO_EC
1364 EC_KEY *peer_ecdh_tmp;
1370 /* DTLS structures */
1372 # ifndef OPENSSL_NO_SCTP
1373 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1376 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1377 # define DTLS1_MAX_MTU_OVERHEAD 48
1380 * Flag used in message reuse to indicate the buffer contains the record
1381 * header as well as the the handshake message header.
1383 # define DTLS1_SKIP_RECORD_HEADER 2
1385 struct dtls1_retransmit_state {
1386 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1387 EVP_MD_CTX *write_hash; /* used for mac generation */
1388 COMP_CTX *compress; /* compression */
1389 SSL_SESSION *session;
1390 unsigned short epoch;
1393 struct hm_header_st {
1395 unsigned long msg_len;
1397 unsigned long frag_off;
1398 unsigned long frag_len;
1399 unsigned int is_ccs;
1400 struct dtls1_retransmit_state saved_retransmit_state;
1403 struct dtls1_timeout_st {
1404 /* Number of read timeouts so far */
1405 unsigned int read_timeouts;
1406 /* Number of write timeouts so far */
1407 unsigned int write_timeouts;
1408 /* Number of alerts received so far */
1409 unsigned int num_alerts;
1412 typedef struct hm_fragment_st {
1413 struct hm_header_st msg_header;
1414 unsigned char *fragment;
1415 unsigned char *reassembly;
1418 typedef struct dtls1_state_st {
1419 unsigned int send_cookie;
1420 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1421 unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH];
1422 unsigned int cookie_len;
1424 /* handshake message numbers */
1425 unsigned short handshake_write_seq;
1426 unsigned short next_handshake_write_seq;
1427 unsigned short handshake_read_seq;
1429 /* Buffered handshake messages */
1430 pqueue buffered_messages;
1431 /* Buffered (sent) handshake records */
1432 pqueue sent_messages;
1434 /* Is set when listening for new connections with dtls1_listen() */
1435 unsigned int listen;
1436 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1437 unsigned int mtu; /* max DTLS packet size */
1438 struct hm_header_st w_msg_hdr;
1439 struct hm_header_st r_msg_hdr;
1440 struct dtls1_timeout_st timeout;
1442 * Indicates when the last handshake msg or heartbeat sent will timeout
1444 struct timeval next_timeout;
1445 /* Timeout duration */
1446 unsigned short timeout_duration;
1448 unsigned int retransmitting;
1449 # ifndef OPENSSL_NO_SCTP
1450 /* used when SSL_ST_XX_FLUSH is entered */
1452 int shutdown_received;
1458 # ifndef OPENSSL_NO_EC
1460 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1462 # define EXPLICIT_PRIME_CURVE_TYPE 1
1463 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1464 # define NAMED_CURVE_TYPE 3
1465 # endif /* OPENSSL_NO_EC */
1467 typedef struct cert_pkey_st {
1469 EVP_PKEY *privatekey;
1470 /* Chain for this certificate */
1471 STACK_OF(X509) *chain;
1474 * serverinfo data for this certificate. The data is in TLS Extension
1475 * wire format, specifically it's a series of records like:
1476 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1478 * uint8_t data[length];
1480 unsigned char *serverinfo;
1481 size_t serverinfo_length;
1483 /* Retrieve Suite B flags */
1484 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1485 /* Uses to check strict mode: suite B modes are always strict */
1486 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1487 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1490 unsigned short ext_type;
1492 * Per-connection flags relating to this extension type: not used if
1493 * part of an SSL_CTX structure.
1496 custom_ext_add_cb add_cb;
1497 custom_ext_free_cb free_cb;
1499 custom_ext_parse_cb parse_cb;
1501 } custom_ext_method;
1503 /* ext_flags values */
1506 * Indicates an extension has been received. Used to check for unsolicited or
1507 * duplicate extensions.
1509 # define SSL_EXT_FLAG_RECEIVED 0x1
1511 * Indicates an extension has been sent: used to enable sending of
1512 * corresponding ServerHello extension.
1514 # define SSL_EXT_FLAG_SENT 0x2
1517 custom_ext_method *meths;
1519 } custom_ext_methods;
1521 typedef struct cert_st {
1522 /* Current active set */
1524 * ALWAYS points to an element of the pkeys array
1525 * Probably it would make more sense to store
1526 * an index, not a pointer.
1529 # ifndef OPENSSL_NO_RSA
1531 RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize);
1533 # ifndef OPENSSL_NO_DH
1535 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1538 # ifndef OPENSSL_NO_EC
1540 /* Callback for generating ephemeral ECDH keys */
1541 EC_KEY *(*ecdh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1542 /* Select ECDH parameters automatically */
1545 /* Flags related to certificates */
1546 uint32_t cert_flags;
1547 CERT_PKEY pkeys[SSL_PKEY_NUM];
1549 * Certificate types (received or sent) in certificate request message.
1550 * On receive this is only set if number of certificate types exceeds
1553 unsigned char *ctypes;
1556 * suppported signature algorithms. When set on a client this is sent in
1557 * the client hello as the supported signature algorithms extension. For
1558 * servers it represents the signature algorithms we are willing to use.
1560 unsigned char *conf_sigalgs;
1561 /* Size of above array */
1562 size_t conf_sigalgslen;
1564 * Client authentication signature algorithms, if not set then uses
1565 * conf_sigalgs. On servers these will be the signature algorithms sent
1566 * to the client in a cerificate request for TLS 1.2. On a client this
1567 * represents the signature algortithms we are willing to use for client
1570 unsigned char *client_sigalgs;
1571 /* Size of above array */
1572 size_t client_sigalgslen;
1574 * Signature algorithms shared by client and server: cached because these
1575 * are used most often.
1577 TLS_SIGALGS *shared_sigalgs;
1578 size_t shared_sigalgslen;
1580 * Certificate setup callback: if set is called whenever a certificate
1581 * may be required (client or server). the callback can then examine any
1582 * appropriate parameters and setup any certificates required. This
1583 * allows advanced applications to select certificates on the fly: for
1584 * example based on supported signature algorithms or curves.
1586 int (*cert_cb) (SSL *ssl, void *arg);
1589 * Optional X509_STORE for chain building or certificate validation If
1590 * NULL the parent SSL_CTX store is used instead.
1592 X509_STORE *chain_store;
1593 X509_STORE *verify_store;
1594 /* Custom extension methods for server and client */
1595 custom_ext_methods cli_ext;
1596 custom_ext_methods srv_ext;
1597 /* Security callback */
1598 int (*sec_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1599 void *other, void *ex);
1600 /* Security level */
1603 #ifndef OPENSSL_NO_PSK
1604 /* If not NULL psk identity hint to use for servers */
1605 char *psk_identity_hint;
1607 int references; /* >1 only if SSL_copy_session_id is used */
1610 /* Structure containing decoded values of signature algorithms extension */
1611 struct tls_sigalgs_st {
1612 /* NID of hash algorithm */
1614 /* NID of signature algorithm */
1616 /* Combined hash and signature NID */
1617 int signandhash_nid;
1618 /* Raw values used in extension */
1619 unsigned char rsign;
1620 unsigned char rhash;
1631 * #define ABORT_DEBUG
1634 * #define PKT_DEBUG 1
1640 * #define DES_OFB_DEBUG
1649 * #define IDEA_DEBUG
1652 # define FP_ICC (int (*)(const void *,const void *))
1655 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1656 * of a mess of functions, but hell, think of it as an opaque structure :-)
1658 typedef struct ssl3_enc_method {
1659 int (*enc) (SSL *, int);
1660 int (*mac) (SSL *, unsigned char *, int);
1661 int (*setup_key_block) (SSL *);
1662 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1664 int (*change_cipher_state) (SSL *, int);
1665 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1666 int finish_mac_length;
1667 int (*cert_verify_mac) (SSL *, int, unsigned char *);
1668 const char *client_finished_label;
1669 int client_finished_label_len;
1670 const char *server_finished_label;
1671 int server_finished_label_len;
1672 int (*alert_value) (int);
1673 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1674 const char *, size_t,
1675 const unsigned char *, size_t,
1677 /* Various flags indicating protocol version requirements */
1679 /* Handshake header length */
1681 /* Set the handshake header */
1682 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1683 /* Write out handshake message */
1684 int (*do_write) (SSL *s);
1687 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1688 # define ssl_handshake_start(s) \
1689 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1690 # define ssl_set_handshake_header(s, htype, len) \
1691 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1692 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1694 /* Values for enc_flags */
1696 /* Uses explicit IV for CBC mode */
1697 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1698 /* Uses signature algorithms extension */
1699 # define SSL_ENC_FLAG_SIGALGS 0x2
1700 /* Uses SHA256 default PRF */
1701 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1703 # define SSL_ENC_FLAG_DTLS 0x8
1705 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1706 * apply to others in future.
1708 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1710 # ifndef OPENSSL_NO_COMP
1711 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1712 typedef struct ssl3_comp_st {
1713 int comp_id; /* The identifier byte for this compression
1715 char *name; /* Text name used for the compression type */
1716 COMP_METHOD *method; /* The method :-) */
1720 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1721 OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[];
1723 SSL_METHOD *ssl_bad_method(int ver);
1725 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1726 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1727 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1728 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1729 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1730 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1732 # define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
1733 s_get_meth, enc_data) \
1734 const SSL_METHOD *func_name(void) \
1736 static const SSL_METHOD func_name##_data= { \
1748 ssl3_renegotiate_check, \
1752 ssl3_dispatch_alert, \
1755 ssl3_get_cipher_by_char, \
1756 ssl3_put_cipher_by_char, \
1761 tls1_default_timeout, \
1763 ssl_undefined_void_function, \
1764 ssl3_callback_ctrl, \
1765 ssl3_ctx_callback_ctrl, \
1767 return &func_name##_data; \
1770 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
1771 const SSL_METHOD *func_name(void) \
1773 static const SSL_METHOD func_name##_data= { \
1785 ssl3_renegotiate_check, \
1789 ssl3_dispatch_alert, \
1792 ssl3_get_cipher_by_char, \
1793 ssl3_put_cipher_by_char, \
1798 ssl3_default_timeout, \
1800 ssl_undefined_void_function, \
1801 ssl3_callback_ctrl, \
1802 ssl3_ctx_callback_ctrl, \
1804 return &func_name##_data; \
1807 # define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \
1808 s_get_meth, enc_data) \
1809 const SSL_METHOD *func_name(void) \
1811 static const SSL_METHOD func_name##_data= { \
1823 ssl3_renegotiate_check, \
1824 dtls1_get_message, \
1826 dtls1_write_app_data_bytes, \
1827 dtls1_dispatch_alert, \
1830 ssl3_get_cipher_by_char, \
1831 ssl3_put_cipher_by_char, \
1836 dtls1_default_timeout, \
1838 ssl_undefined_void_function, \
1839 ssl3_callback_ctrl, \
1840 ssl3_ctx_callback_ctrl, \
1842 return &func_name##_data; \
1845 struct openssl_ssl_test_functions {
1846 int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
1847 int (*p_ssl3_setup_buffers) (SSL *s);
1848 int (*p_tls1_process_heartbeat) (SSL *s,
1849 unsigned char *p, unsigned int length);
1850 int (*p_dtls1_process_heartbeat) (SSL *s,
1851 unsigned char *p, unsigned int length);
1854 # ifndef OPENSSL_UNIT_TEST
1856 void ssl_clear_cipher_ctx(SSL *s);
1857 int ssl_clear_bad_session(SSL *s);
1858 __owur CERT *ssl_cert_new(void);
1859 __owur CERT *ssl_cert_dup(CERT *cert);
1860 void ssl_cert_clear_certs(CERT *c);
1861 void ssl_cert_free(CERT *c);
1862 __owur int ssl_get_new_session(SSL *s, int session);
1863 __owur int ssl_get_prev_session(SSL *s, PACKET *pkt, unsigned char *session,
1865 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1866 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1867 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1868 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1869 const SSL_CIPHER *const *bp);
1870 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1871 STACK_OF(SSL_CIPHER) **pref,
1872 STACK_OF(SSL_CIPHER) **sorted,
1873 const char *rule_str, CERT *c);
1874 void ssl_update_cache(SSL *s, int mode);
1875 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1876 const EVP_MD **md, int *mac_pkey_type,
1877 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1878 __owur int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md);
1879 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1880 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1881 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1882 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1883 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1884 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1885 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1886 __owur int ssl_cert_set_current(CERT *c, long arg);
1887 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1888 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1891 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1892 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1893 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1894 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1896 __owur int ssl_security(SSL *s, int op, int bits, int nid, void *other);
1897 __owur int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other);
1899 int ssl_undefined_function(SSL *s);
1900 __owur int ssl_undefined_void_function(void);
1901 __owur int ssl_undefined_const_function(const SSL *s);
1902 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1903 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1904 size_t *serverinfo_length);
1905 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1906 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1907 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher);
1908 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1909 __owur int ssl_verify_alarm_type(long type);
1910 void ssl_load_ciphers(void);
1911 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1912 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1915 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1916 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1917 void ssl3_init_finished_mac(SSL *s);
1918 __owur int ssl3_send_server_certificate(SSL *s);
1919 __owur int ssl3_send_newsession_ticket(SSL *s);
1920 __owur int ssl3_send_cert_status(SSL *s);
1921 __owur int ssl3_get_change_cipher_spec(SSL *s, int a, int b);
1922 __owur int ssl3_get_finished(SSL *s, int state_a, int state_b);
1923 __owur int ssl3_setup_key_block(SSL *s);
1924 __owur int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b);
1925 __owur int ssl3_change_cipher_state(SSL *s, int which);
1926 void ssl3_cleanup_key_block(SSL *s);
1927 __owur int ssl3_do_write(SSL *s, int type);
1928 int ssl3_send_alert(SSL *s, int level, int desc);
1929 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1930 unsigned char *p, int len);
1931 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1932 __owur long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1933 __owur int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen);
1934 __owur int ssl3_num_ciphers(void);
1935 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1936 int ssl3_renegotiate(SSL *ssl);
1937 int ssl3_renegotiate_check(SSL *ssl);
1938 __owur int ssl3_dispatch_alert(SSL *s);
1939 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1941 __owur int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1942 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1943 void ssl3_free_digest_list(SSL *s);
1944 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1945 __owur SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt,
1946 STACK_OF(SSL_CIPHER) *srvr);
1947 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1948 __owur int ssl3_new(SSL *s);
1949 void ssl3_free(SSL *s);
1950 __owur int ssl3_accept(SSL *s);
1951 __owur int ssl3_connect(SSL *s);
1952 __owur int ssl3_read(SSL *s, void *buf, int len);
1953 __owur int ssl3_peek(SSL *s, void *buf, int len);
1954 __owur int ssl3_write(SSL *s, const void *buf, int len);
1955 __owur int ssl3_shutdown(SSL *s);
1956 void ssl3_clear(SSL *s);
1957 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1958 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1959 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1960 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1962 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1963 __owur long ssl3_default_timeout(void);
1965 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1966 __owur int ssl3_handshake_write(SSL *s);
1968 __owur int ssl_allow_compression(SSL *s);
1970 __owur long tls1_default_timeout(void);
1971 __owur int dtls1_do_write(SSL *s, int type);
1972 void dtls1_set_message_header(SSL *s,
1973 unsigned char *p, unsigned char mt,
1975 unsigned long frag_off,
1976 unsigned long frag_len);
1978 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1980 __owur int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
1981 __owur int dtls1_read_failed(SSL *s, int code);
1982 __owur int dtls1_buffer_message(SSL *s, int ccs);
1983 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq,
1984 unsigned long frag_off, int *found);
1985 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1986 int dtls1_retransmit_buffered_messages(SSL *s);
1987 void dtls1_clear_record_buffer(SSL *s);
1988 void dtls1_get_message_header(unsigned char *data,
1989 struct hm_header_st *msg_hdr);
1990 __owur long dtls1_default_timeout(void);
1991 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1992 __owur int dtls1_check_timeout_num(SSL *s);
1993 __owur int dtls1_handle_timeout(SSL *s);
1994 __owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1995 void dtls1_start_timer(SSL *s);
1996 void dtls1_stop_timer(SSL *s);
1997 __owur int dtls1_is_timer_expired(SSL *s);
1998 void dtls1_double_timeout(SSL *s);
1999 __owur unsigned int dtls1_raw_hello_verify_request(unsigned char *buf,
2000 unsigned char *cookie,
2001 unsigned char cookie_len);
2002 __owur int dtls1_send_newsession_ticket(SSL *s);
2003 __owur unsigned int dtls1_min_mtu(SSL *s);
2004 __owur unsigned int dtls1_link_min_mtu(void);
2005 void dtls1_hm_fragment_free(hm_fragment *frag);
2007 /* some client-only functions */
2008 __owur int ssl3_client_hello(SSL *s);
2009 __owur int ssl3_get_server_hello(SSL *s);
2010 __owur int ssl3_get_certificate_request(SSL *s);
2011 __owur int ssl3_get_new_session_ticket(SSL *s);
2012 __owur int ssl3_get_cert_status(SSL *s);
2013 __owur int ssl3_get_server_done(SSL *s);
2014 __owur int ssl3_send_client_verify(SSL *s);
2015 __owur int ssl3_send_client_certificate(SSL *s);
2016 __owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
2017 __owur int ssl3_send_client_key_exchange(SSL *s);
2018 __owur int ssl3_get_key_exchange(SSL *s);
2019 __owur int ssl3_get_server_certificate(SSL *s);
2020 __owur int ssl3_check_cert_and_algorithm(SSL *s);
2021 # ifndef OPENSSL_NO_NEXTPROTONEG
2022 __owur int ssl3_send_next_proto(SSL *s);
2025 int dtls1_client_hello(SSL *s);
2027 /* some server-only functions */
2028 __owur int ssl3_get_client_hello(SSL *s);
2029 __owur int ssl3_send_server_hello(SSL *s);
2030 __owur int ssl3_send_hello_request(SSL *s);
2031 __owur int ssl3_send_server_key_exchange(SSL *s);
2032 __owur int ssl3_send_certificate_request(SSL *s);
2033 __owur int ssl3_send_server_done(SSL *s);
2034 __owur int ssl3_get_client_certificate(SSL *s);
2035 __owur int ssl3_get_client_key_exchange(SSL *s);
2036 __owur int ssl3_get_cert_verify(SSL *s);
2037 # ifndef OPENSSL_NO_NEXTPROTONEG
2038 __owur int ssl3_get_next_proto(SSL *s);
2041 __owur int tls1_new(SSL *s);
2042 void tls1_free(SSL *s);
2043 void tls1_clear(SSL *s);
2044 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2045 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2047 __owur int dtls1_new(SSL *s);
2048 __owur int dtls1_accept(SSL *s);
2049 __owur int dtls1_connect(SSL *s);
2050 void dtls1_free(SSL *s);
2051 void dtls1_clear(SSL *s);
2052 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2053 __owur int dtls1_shutdown(SSL *s);
2055 __owur long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
2056 __owur int dtls1_dispatch_alert(SSL *s);
2058 __owur int ssl_init_wbio_buffer(SSL *s, int push);
2059 void ssl_free_wbio_buffer(SSL *s);
2061 __owur int tls1_change_cipher_state(SSL *s, int which);
2062 __owur int tls1_setup_key_block(SSL *s);
2063 __owur int tls1_final_finish_mac(SSL *s,
2064 const char *str, int slen, unsigned char *p);
2065 __owur int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
2066 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
2067 unsigned char *p, int len);
2068 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2069 const char *label, size_t llen,
2070 const unsigned char *p, size_t plen,
2072 __owur int tls1_alert_code(int code);
2073 __owur int ssl3_alert_code(int code);
2074 __owur int ssl_ok(SSL *s);
2076 # ifndef OPENSSL_NO_EC
2077 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
2080 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2082 # ifndef OPENSSL_NO_EC
2083 __owur int tls1_ec_curve_id2nid(int curve_id);
2084 __owur int tls1_ec_nid2curve_id(int nid);
2085 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
2086 __owur int tls1_shared_curve(SSL *s, int nmatch);
2087 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
2088 int *curves, size_t ncurves);
2089 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
2091 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
2092 # endif /* OPENSSL_NO_EC */
2094 __owur int tls1_shared_list(SSL *s,
2095 const unsigned char *l1, size_t l1len,
2096 const unsigned char *l2, size_t l2len, int nmatch);
2097 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
2098 unsigned char *limit, int *al);
2099 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
2100 unsigned char *limit, int *al);
2101 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2102 __owur int tls1_set_server_sigalgs(SSL *s);
2103 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2104 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2105 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2106 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2108 # ifndef OPENSSL_NO_HEARTBEATS
2109 __owur int tls1_heartbeat(SSL *s);
2110 __owur int dtls1_heartbeat(SSL *s);
2111 __owur int tls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2112 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2115 __owur int tls1_process_ticket(SSL *s, PACKET *pkt, unsigned char *session_id,
2116 int len, SSL_SESSION **ret);
2118 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2120 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2121 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2122 void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op);
2124 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2125 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2126 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2128 void tls1_set_cert_validity(SSL *s);
2130 # ifndef OPENSSL_NO_DH
2131 __owur DH *ssl_get_auto_dh(SSL *s);
2134 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2135 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2137 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2138 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2139 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2141 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2143 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2145 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2146 __owur long ssl_get_algorithm2(SSL *s);
2147 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2148 const unsigned char *psig, size_t psiglen);
2149 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2150 __owur int tls1_process_sigalgs(SSL *s);
2151 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2152 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2153 const unsigned char *sig, EVP_PKEY *pkey);
2154 void ssl_set_client_disabled(SSL *s);
2155 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2157 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2159 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2160 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2162 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2164 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2167 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2168 void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2169 unsigned char *md_out,
2170 size_t *md_out_size,
2171 const unsigned char header[13],
2172 const unsigned char *data,
2173 size_t data_plus_mac_size,
2174 size_t data_plus_mac_plus_padding_size,
2175 const unsigned char *mac_secret,
2176 unsigned mac_secret_length, char is_sslv3);
2178 void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2179 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2180 size_t data_len, size_t orig_len);
2182 __owur int srp_generate_server_master_secret(SSL *s);
2183 __owur int srp_generate_client_master_secret(SSL *s);
2184 __owur int srp_verify_server_param(SSL *s, int *al);
2188 void custom_ext_init(custom_ext_methods *meths);
2190 __owur int custom_ext_parse(SSL *s, int server,
2191 unsigned int ext_type,
2192 const unsigned char *ext_data, size_t ext_size, int *al);
2193 __owur int custom_ext_add(SSL *s, int server,
2194 unsigned char **pret, unsigned char *limit, int *al);
2196 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2197 void custom_exts_free(custom_ext_methods *exts);
2201 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2202 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2203 # define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat
2204 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat