1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
86 * 6. Redistributions of any form whatsoever must retain the following
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
110 /* ====================================================================
111 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
112 * ECC cipher suite support in OpenSSL originally developed by
113 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 /* ====================================================================
116 * Copyright 2005 Nokia. All rights reserved.
118 * The portions of the attached software ("Contribution") is developed by
119 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
122 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
123 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
124 * support (see RFC 4279) to OpenSSL.
126 * No patent licenses or other rights except those expressly stated in
127 * the OpenSSL open source license shall be deemed granted or received
128 * expressly, by implication, estoppel, or otherwise.
130 * No assurances are provided by Nokia that the Contribution does not
131 * infringe the patent or other intellectual property rights of any third
132 * party or that the license provides you with all the necessary rights
133 * to make use of the Contribution.
135 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
136 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
137 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
138 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
142 #ifndef HEADER_SSL_LOCL_H
143 # define HEADER_SSL_LOCL_H
151 # include <openssl/buffer.h>
152 # ifndef OPENSSL_NO_COMP
153 # include <openssl/comp.h>
155 # include <openssl/bio.h>
156 # include <openssl/stack.h>
157 # ifndef OPENSSL_NO_RSA
158 # include <openssl/rsa.h>
160 # ifndef OPENSSL_NO_DSA
161 # include <openssl/dsa.h>
163 # include <openssl/err.h>
164 # include <openssl/ssl.h>
165 # include <openssl/async.h>
166 # include <openssl/symhacks.h>
167 # ifndef OPENSSL_NO_CT
168 # include <openssl/ct.h>
170 #include "record/record.h"
171 #include "statem/statem.h"
172 #include "packet_locl.h"
173 #include "internal/dane.h"
175 # ifdef OPENSSL_BUILD_SHLIBSSL
176 # undef OPENSSL_EXTERN
177 # define OPENSSL_EXTERN OPENSSL_EXPORT
182 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
183 l|=(((unsigned long)(*((c)++)))<< 8), \
184 l|=(((unsigned long)(*((c)++)))<<16), \
185 l|=(((unsigned long)(*((c)++)))<<24))
187 /* NOTE - c is not incremented as per c2l */
188 # define c2ln(c,l1,l2,n) { \
192 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
193 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
194 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
195 case 5: l2|=((unsigned long)(*(--(c)))); \
196 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
197 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
198 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
199 case 1: l1|=((unsigned long)(*(--(c)))); \
203 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
204 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
205 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
206 *((c)++)=(unsigned char)(((l)>>24)&0xff))
208 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
209 l|=((unsigned long)(*((c)++)))<<16, \
210 l|=((unsigned long)(*((c)++)))<< 8, \
211 l|=((unsigned long)(*((c)++))))
213 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
214 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
215 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
216 *((c)++)=(unsigned char)(((l) )&0xff))
218 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
219 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
220 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
221 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
222 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
223 *((c)++)=(unsigned char)(((l) )&0xff))
225 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
226 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
227 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
228 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
229 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
230 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
231 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
232 *((c)++)=(unsigned char)(((l) )&0xff))
234 /* NOTE - c is not incremented as per l2c */
235 # define l2cn(l1,l2,c,n) { \
238 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
239 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
240 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
241 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
242 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
243 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
244 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
245 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
249 # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
250 (((unsigned int)(c[1])) )),c+=2)
251 # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
252 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
254 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
255 (((unsigned long)(c[1]))<< 8)| \
256 (((unsigned long)(c[2])) )),c+=3)
258 # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
259 c[1]=(unsigned char)(((l)>> 8)&0xff), \
260 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
262 #define DTLS_VERSION_GT(v1, v2) ((v1) < (v2))
263 #define DTLS_VERSION_GE(v1, v2) ((v1) <= (v2))
264 #define DTLS_VERSION_LT(v1, v2) ((v1) > (v2))
265 #define DTLS_VERSION_LE(v1, v2) ((v1) >= (v2))
269 # define SSL_DECRYPT 0
270 # define SSL_ENCRYPT 1
272 # define TWO_BYTE_BIT 0x80
273 # define SEC_ESC_BIT 0x40
274 # define TWO_BYTE_MASK 0x7fff
275 # define THREE_BYTE_MASK 0x3fff
277 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
278 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
279 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
282 * Define the Bitmasks for SSL_CIPHER.algorithms.
283 * This bits are used packed as dense as possible. If new methods/ciphers
284 * etc will be added, the bits a likely to change, so this information
285 * is for internal library use only, even though SSL_CIPHER.algorithms
286 * can be publicly accessed.
287 * Use the according functions for cipher management instead.
289 * The bit mask handling in the selection and sorting scheme in
290 * ssl_create_cipher_list() has only limited capabilities, reflecting
291 * that the different entities within are mutually exclusive:
292 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
295 /* Bits for algorithm_mkey (key exchange algorithm) */
296 /* RSA key exchange */
297 # define SSL_kRSA 0x00000001U
298 /* tmp DH key no DH cert */
299 # define SSL_kDHE 0x00000002U
301 # define SSL_kEDH SSL_kDHE
303 # define SSL_kECDHE 0x00000004U
305 # define SSL_kEECDH SSL_kECDHE
307 # define SSL_kPSK 0x00000008U
308 /* GOST key exchange */
309 # define SSL_kGOST 0x00000010U
311 # define SSL_kSRP 0x00000020U
313 # define SSL_kRSAPSK 0x00000040U
314 # define SSL_kECDHEPSK 0x00000080U
315 # define SSL_kDHEPSK 0x00000100U
319 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
321 /* Bits for algorithm_auth (server authentication) */
323 # define SSL_aRSA 0x00000001U
325 # define SSL_aDSS 0x00000002U
326 /* no auth (i.e. use ADH or AECDH) */
327 # define SSL_aNULL 0x00000004U
329 # define SSL_aECDSA 0x00000008U
331 # define SSL_aPSK 0x00000010U
332 /* GOST R 34.10-2001 signature auth */
333 # define SSL_aGOST01 0x00000020U
335 # define SSL_aSRP 0x00000040U
336 /* GOST R 34.10-2012 signature auth */
337 # define SSL_aGOST12 0x00000080U
339 /* Bits for algorithm_enc (symmetric encryption) */
340 # define SSL_DES 0x00000001U
341 # define SSL_3DES 0x00000002U
342 # define SSL_RC4 0x00000004U
343 # define SSL_RC2 0x00000008U
344 # define SSL_IDEA 0x00000010U
345 # define SSL_eNULL 0x00000020U
346 # define SSL_AES128 0x00000040U
347 # define SSL_AES256 0x00000080U
348 # define SSL_CAMELLIA128 0x00000100U
349 # define SSL_CAMELLIA256 0x00000200U
350 # define SSL_eGOST2814789CNT 0x00000400U
351 # define SSL_SEED 0x00000800U
352 # define SSL_AES128GCM 0x00001000U
353 # define SSL_AES256GCM 0x00002000U
354 # define SSL_AES128CCM 0x00004000U
355 # define SSL_AES256CCM 0x00008000U
356 # define SSL_AES128CCM8 0x00010000U
357 # define SSL_AES256CCM8 0x00020000U
358 # define SSL_eGOST2814789CNT12 0x00040000U
359 # define SSL_CHACHA20POLY1305 0x00080000U
361 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
362 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
363 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
364 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
365 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
367 /* Bits for algorithm_mac (symmetric authentication) */
369 # define SSL_MD5 0x00000001U
370 # define SSL_SHA1 0x00000002U
371 # define SSL_GOST94 0x00000004U
372 # define SSL_GOST89MAC 0x00000008U
373 # define SSL_SHA256 0x00000010U
374 # define SSL_SHA384 0x00000020U
375 /* Not a real MAC, just an indication it is part of cipher */
376 # define SSL_AEAD 0x00000040U
377 # define SSL_GOST12_256 0x00000080U
378 # define SSL_GOST89MAC12 0x00000100U
379 # define SSL_GOST12_512 0x00000200U
382 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
383 * sure to update this constant too
386 # define SSL_MD_MD5_IDX 0
387 # define SSL_MD_SHA1_IDX 1
388 # define SSL_MD_GOST94_IDX 2
389 # define SSL_MD_GOST89MAC_IDX 3
390 # define SSL_MD_SHA256_IDX 4
391 # define SSL_MD_SHA384_IDX 5
392 # define SSL_MD_GOST12_256_IDX 6
393 # define SSL_MD_GOST89MAC12_IDX 7
394 # define SSL_MD_GOST12_512_IDX 8
395 # define SSL_MD_MD5_SHA1_IDX 9
396 # define SSL_MD_SHA224_IDX 10
397 # define SSL_MD_SHA512_IDX 11
398 # define SSL_MAX_DIGEST 12
400 /* Bits for algorithm2 (handshake digests and other extra flags) */
402 /* Bits 0-7 are handshake MAC */
403 # define SSL_HANDSHAKE_MAC_MASK 0xFF
404 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
405 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
406 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
407 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
408 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
409 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
410 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
412 /* Bits 8-15 bits are PRF */
413 # define TLS1_PRF_DGST_SHIFT 8
414 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
415 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
416 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
417 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
418 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
419 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
420 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
423 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
424 * goes into algorithm2)
426 # define TLS1_STREAM_MAC 0x10000
428 # define SSL_DEFAULT_MASK 0X00000020U
430 # define SSL_STRONG_NONE 0x00000001U
431 # define SSL_LOW 0x00000002U
432 # define SSL_MEDIUM 0x00000004U
433 # define SSL_HIGH 0x00000008U
434 # define SSL_FIPS 0x00000010U
435 # define SSL_NOT_DEFAULT 0x00000020U
437 /* we have used 0000003f - 26 bits left to go */
439 /* Check if an SSL structure is using DTLS */
440 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
441 /* See if we need explicit IV */
442 # define SSL_USE_EXPLICIT_IV(s) \
443 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
445 * See if we use signature algorithms extension and signature algorithm
448 # define SSL_USE_SIGALGS(s) \
449 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
451 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
452 * apply to others in future.
454 # define SSL_USE_TLS1_2_CIPHERS(s) \
455 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
457 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
458 * flags because it may not be set to correct version yet.
460 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
461 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
462 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
464 # ifdef TLSEXT_TYPE_encrypt_then_mac
465 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
467 # define SSL_USE_ETM(s) (0)
470 /* Mostly for SSLv3 */
471 # define SSL_PKEY_RSA_ENC 0
472 # define SSL_PKEY_RSA_SIGN 1
473 # define SSL_PKEY_DSA_SIGN 2
474 # define SSL_PKEY_ECC 3
475 # define SSL_PKEY_GOST01 4
476 # define SSL_PKEY_GOST12_256 5
477 # define SSL_PKEY_GOST12_512 6
478 # define SSL_PKEY_NUM 7
480 * Pseudo-constant. GOST cipher suites can use different certs for 1
481 * SSL_CIPHER. So let's see which one we have in fact.
483 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
486 * SSL_kRSA <- RSA_ENC
487 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
488 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
489 * SSL_aRSA <- RSA_ENC | RSA_SIGN
490 * SSL_aDSS <- DSA_SIGN
494 #define CERT_INVALID 0
495 #define CERT_PUBLIC_KEY 1
496 #define CERT_PRIVATE_KEY 2
500 /* CipherSuite length. SSLv3 and all TLS versions. */
501 #define TLS_CIPHER_LEN 2
502 /* used to hold info on the particular ciphers used */
503 struct ssl_cipher_st {
505 const char *name; /* text name */
506 uint32_t id; /* id, 4 bytes, first is version */
508 * changed in 1.0.0: these four used to be portions of a single value
511 uint32_t algorithm_mkey; /* key exchange algorithm */
512 uint32_t algorithm_auth; /* server authentication */
513 uint32_t algorithm_enc; /* symmetric encryption */
514 uint32_t algorithm_mac; /* symmetric authentication */
515 int min_tls; /* minimum SSL/TLS protocol version */
516 int max_tls; /* maximum SSL/TLS protocol version */
517 int min_dtls; /* minimum DTLS protocol version */
518 int max_dtls; /* maximum DTLS protocol version */
519 uint32_t algo_strength; /* strength and export flags */
520 uint32_t algorithm2; /* Extra flags */
521 int32_t strength_bits; /* Number of bits really used */
522 uint32_t alg_bits; /* Number of bits for algorithm */
525 /* Used to hold SSL/TLS functions */
526 struct ssl_method_st {
530 int (*ssl_new) (SSL *s);
531 void (*ssl_clear) (SSL *s);
532 void (*ssl_free) (SSL *s);
533 int (*ssl_accept) (SSL *s);
534 int (*ssl_connect) (SSL *s);
535 int (*ssl_read) (SSL *s, void *buf, int len);
536 int (*ssl_peek) (SSL *s, void *buf, int len);
537 int (*ssl_write) (SSL *s, const void *buf, int len);
538 int (*ssl_shutdown) (SSL *s);
539 int (*ssl_renegotiate) (SSL *s);
540 int (*ssl_renegotiate_check) (SSL *s);
541 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
542 unsigned char *buf, int len, int peek);
543 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
544 int (*ssl_dispatch_alert) (SSL *s);
545 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
546 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
547 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
548 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
549 int (*ssl_pending) (const SSL *s);
550 int (*num_ciphers) (void);
551 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
552 const struct ssl_method_st *(*get_ssl_method) (int version);
553 long (*get_timeout) (void);
554 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
555 int (*ssl_version) (void);
556 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
557 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
561 * Lets make this into an ASN.1 type structure as follows
562 * SSL_SESSION_ID ::= SEQUENCE {
563 * version INTEGER, -- structure version number
564 * SSLversion INTEGER, -- SSL version number
565 * Cipher OCTET STRING, -- the 3 byte cipher ID
566 * Session_ID OCTET STRING, -- the Session ID
567 * Master_key OCTET STRING, -- the master key
568 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
569 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
570 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
571 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
572 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
573 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
574 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
575 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
576 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
577 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
578 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
579 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
580 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
581 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
583 * Look in ssl/ssl_asn1.c for more details
584 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
586 struct ssl_session_st {
587 int ssl_version; /* what ssl version session info is being
589 int master_key_length;
590 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
591 /* session_id - valid? */
592 unsigned int session_id_length;
593 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
595 * this is used to determine whether the session is being reused in the
596 * appropriate context. It is up to the application to set this, via
599 unsigned int sid_ctx_length;
600 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
601 # ifndef OPENSSL_NO_PSK
602 char *psk_identity_hint;
606 * Used to indicate that session resumption is not allowed. Applications
607 * can also set this bit for a new session via not_resumable_session_cb
608 * to disable session caching and tickets.
611 /* This is the cert and type for the other end. */
614 /* Certificate chain peer sent */
615 STACK_OF(X509) *peer_chain;
617 * when app_verify_callback accepts a session where the peer's
618 * certificate is not ok, we must remember the error for session reuse:
620 long verify_result; /* only for servers */
624 unsigned int compress_meth; /* Need to lookup the method */
625 const SSL_CIPHER *cipher;
626 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
627 * to load the 'cipher' structure */
628 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
629 CRYPTO_EX_DATA ex_data; /* application specific data */
631 * These are used to make removal of session-ids more efficient and to
632 * implement a maximum cache size.
634 struct ssl_session_st *prev, *next;
635 char *tlsext_hostname;
636 # ifndef OPENSSL_NO_EC
637 size_t tlsext_ecpointformatlist_length;
638 unsigned char *tlsext_ecpointformatlist; /* peer's list */
639 size_t tlsext_ellipticcurvelist_length;
640 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
641 # endif /* OPENSSL_NO_EC */
643 unsigned char *tlsext_tick; /* Session ticket */
644 size_t tlsext_ticklen; /* Session ticket length */
645 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
646 # ifndef OPENSSL_NO_SRP
653 /* Extended master secret support */
654 # define SSL_SESS_FLAG_EXTMS 0x1
657 # ifndef OPENSSL_NO_SRP
659 typedef struct srp_ctx_st {
660 /* param for all the callbacks */
662 /* set client Hello login callback */
663 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
664 /* set SRP N/g param callback for verification */
665 int (*SRP_verify_param_callback) (SSL *, void *);
666 /* set SRP client passwd callback */
667 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
669 BIGNUM *N, *g, *s, *B, *A;
673 unsigned long srp_Mask;
684 DEFINE_LHASH_OF(SSL_SESSION);
685 /* Needed in ssl_cert.c */
686 DEFINE_LHASH_OF(X509_NAME);
689 const SSL_METHOD *method;
690 STACK_OF(SSL_CIPHER) *cipher_list;
691 /* same as above but sorted for lookup */
692 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
693 struct x509_store_st /* X509_STORE */ *cert_store;
694 LHASH_OF(SSL_SESSION) *sessions;
696 * Most session-ids that will be cached, default is
697 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
699 unsigned long session_cache_size;
700 struct ssl_session_st *session_cache_head;
701 struct ssl_session_st *session_cache_tail;
703 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
704 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
705 * means only SSL_accept which cache SSL_SESSIONS.
707 uint32_t session_cache_mode;
709 * If timeout is not 0, it is the default timeout value set when
710 * SSL_new() is called. This has been put in to make life easier to set
713 long session_timeout;
715 * If this callback is not null, it will be called each time a session id
716 * is added to the cache. If this function returns 1, it means that the
717 * callback will do a SSL_SESSION_free() when it has finished using it.
718 * Otherwise, on 0, it means the callback has finished with it. If
719 * remove_session_cb is not null, it will be called when a session-id is
720 * removed from the cache. After the call, OpenSSL will
721 * SSL_SESSION_free() it.
723 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
724 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
725 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
726 const unsigned char *data, int len,
729 int sess_connect; /* SSL new conn - started */
730 int sess_connect_renegotiate; /* SSL reneg - requested */
731 int sess_connect_good; /* SSL new conne/reneg - finished */
732 int sess_accept; /* SSL new accept - started */
733 int sess_accept_renegotiate; /* SSL reneg - requested */
734 int sess_accept_good; /* SSL accept/reneg - finished */
735 int sess_miss; /* session lookup misses */
736 int sess_timeout; /* reuse attempt on timeouted session */
737 int sess_cache_full; /* session removed due to full cache */
738 int sess_hit; /* session reuse actually done */
739 int sess_cb_hit; /* session-id that was not in the cache was
740 * passed back via the callback. This
741 * indicates that the application is
742 * supplying session-id's from other
743 * processes - spooky :-) */
748 /* if defined, these override the X509_verify_cert() calls */
749 int (*app_verify_callback) (X509_STORE_CTX *, void *);
750 void *app_verify_arg;
752 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
753 * ('app_verify_callback' was called with just one argument)
756 /* Default password callback. */
757 pem_password_cb *default_passwd_callback;
759 /* Default password callback user data. */
760 void *default_passwd_callback_userdata;
762 /* get client cert callback */
763 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
765 /* cookie generate callback */
766 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
767 unsigned int *cookie_len);
769 /* verify cookie callback */
770 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
771 unsigned int cookie_len);
773 CRYPTO_EX_DATA ex_data;
775 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
776 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
778 STACK_OF(X509) *extra_certs;
779 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
781 /* Default values used when no per-SSL value is defined follow */
783 /* used if SSL's info_callback is NULL */
784 void (*info_callback) (const SSL *ssl, int type, int val);
786 /* what we put in client cert requests */
787 STACK_OF(X509_NAME) *client_CA;
790 * Default values to use in SSL structures follow (these are copied by
796 int min_proto_version;
797 int max_proto_version;
800 struct cert_st /* CERT */ *cert;
803 /* callback that allows applications to peek at protocol messages */
804 void (*msg_callback) (int write_p, int version, int content_type,
805 const void *buf, size_t len, SSL *ssl, void *arg);
806 void *msg_callback_arg;
808 uint32_t verify_mode;
809 unsigned int sid_ctx_length;
810 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
811 /* called 'verify_callback' in the SSL */
812 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
814 /* Default generate session ID callback. */
815 GEN_SESSION_CB generate_session_id;
817 X509_VERIFY_PARAM *param;
821 # ifndef OPENSSL_NO_CT
822 CTLOG_STORE *ctlog_store; /* CT Log Store */
824 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
825 * If they are not, the connection should be aborted.
827 ct_validation_cb ct_validation_callback;
828 void *ct_validation_callback_arg;
832 * If we're using more than one pipeline how should we divide the data
833 * up between the pipes?
835 unsigned int split_send_fragment;
837 * Maximum amount of data to send in one fragment. actual record size can
838 * be more than this due to padding and MAC overheads.
840 unsigned int max_send_fragment;
842 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
843 unsigned int max_pipelines;
845 /* The default read buffer length to use (0 means not set) */
846 size_t default_read_buf_len;
848 # ifndef OPENSSL_NO_ENGINE
850 * Engine to pass requests for client certs to
852 ENGINE *client_cert_engine;
855 /* TLS extensions servername callback */
856 int (*tlsext_servername_callback) (SSL *, int *, void *);
857 void *tlsext_servername_arg;
858 /* RFC 4507 session ticket keys */
859 unsigned char tlsext_tick_key_name[16];
860 unsigned char tlsext_tick_hmac_key[16];
861 unsigned char tlsext_tick_aes_key[16];
862 /* Callback to support customisation of ticket key setting */
863 int (*tlsext_ticket_key_cb) (SSL *ssl,
864 unsigned char *name, unsigned char *iv,
865 EVP_CIPHER_CTX *ectx,
866 HMAC_CTX *hctx, int enc);
868 /* certificate status request info */
869 /* Callback for status request */
870 int (*tlsext_status_cb) (SSL *ssl, void *arg);
871 void *tlsext_status_arg;
873 # ifndef OPENSSL_NO_PSK
874 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
876 unsigned int max_identity_len,
878 unsigned int max_psk_len);
879 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
881 unsigned int max_psk_len);
884 # ifndef OPENSSL_NO_SRP
885 SRP_CTX srp_ctx; /* ctx for SRP authentication */
888 # ifndef OPENSSL_NO_NEXTPROTONEG
889 /* Next protocol negotiation information */
892 * For a server, this contains a callback function by which the set of
893 * advertised protocols can be provided.
895 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
896 unsigned int *len, void *arg);
897 void *next_protos_advertised_cb_arg;
899 * For a client, this contains a callback function that selects the next
900 * protocol from the list provided by the server.
902 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
903 unsigned char *outlen,
904 const unsigned char *in,
905 unsigned int inlen, void *arg);
906 void *next_proto_select_cb_arg;
910 * ALPN information (we are in the process of transitioning from NPN to
915 * For a server, this contains a callback function that allows the
916 * server to select the protocol for the connection.
917 * out: on successful return, this must point to the raw protocol
918 * name (without the length prefix).
919 * outlen: on successful return, this contains the length of |*out|.
920 * in: points to the client's list of supported protocols in
922 * inlen: the length of |in|.
924 int (*alpn_select_cb) (SSL *s,
925 const unsigned char **out,
926 unsigned char *outlen,
927 const unsigned char *in,
928 unsigned int inlen, void *arg);
929 void *alpn_select_cb_arg;
932 * For a client, this contains the list of supported protocols in wire
935 unsigned char *alpn_client_proto_list;
936 unsigned alpn_client_proto_list_len;
938 /* Shared DANE context */
939 struct dane_ctx_st dane;
941 /* SRTP profiles we are willing to do from RFC 5764 */
942 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
944 * Callback for disabling session caching and ticket support on a session
945 * basis, depending on the chosen cipher.
947 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
948 # ifndef OPENSSL_NO_EC
949 /* EC extension values inherited by SSL structure */
950 size_t tlsext_ecpointformatlist_length;
951 unsigned char *tlsext_ecpointformatlist;
952 size_t tlsext_ellipticcurvelist_length;
953 unsigned char *tlsext_ellipticcurvelist;
954 # endif /* OPENSSL_NO_EC */
961 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
967 const SSL_METHOD *method;
969 * There are 2 BIO's even though they are normally both the same. This
970 * is so data can be read and written to different handlers
972 /* used by SSL_read */
974 /* used by SSL_write */
976 /* used during session-id reuse to concatenate messages */
979 * This holds a variable that indicates what we were doing when a 0 or -1
980 * is returned. This is needed for non-blocking IO so we know what
981 * request needs re-doing when in SSL_accept or SSL_connect
985 int (*handshake_func) (SSL *);
987 * Imagine that here's a boolean member "init" that is switched as soon
988 * as SSL_set_{accept/connect}_state is called for the first time, so
989 * that "state" and "handshake_func" are properly initialized. But as
990 * handshake_func is == 0 until then, we use this test instead of an
993 /* are we the server side? */
996 * Generate a new session or reuse an old one.
997 * NB: For servers, the 'new' session may actually be a previously
998 * cached session or even the previous session unless
999 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1002 /* don't send shutdown packets */
1004 /* we have shut things down, 0x01 sent, 0x02 for received */
1009 BUF_MEM *init_buf; /* buffer used during init */
1010 void *init_msg; /* pointer to handshake message body, set by
1011 * ssl3_get_message() */
1012 int init_num; /* amount read/written */
1013 int init_off; /* amount read/written */
1015 struct ssl3_state_st *s3; /* SSLv3 variables */
1016 struct dtls1_state_st *d1; /* DTLSv1 variables */
1018 /* callback that allows applications to peek at protocol messages */
1019 void (*msg_callback) (int write_p, int version, int content_type,
1020 const void *buf, size_t len, SSL *ssl, void *arg);
1021 void *msg_callback_arg;
1022 int hit; /* reusing a previous session */
1023 X509_VERIFY_PARAM *param;
1025 /* Per connection DANE state */
1026 struct dane_st dane;
1029 STACK_OF(SSL_CIPHER) *cipher_list;
1030 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1032 * These are the ones being used, the ones in SSL_SESSION are the ones to
1033 * be 'copied' into these ones
1036 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1037 EVP_MD_CTX *read_hash; /* used for mac generation */
1038 COMP_CTX *compress; /* compression */
1039 COMP_CTX *expand; /* uncompress */
1040 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1041 EVP_MD_CTX *write_hash; /* used for mac generation */
1044 /* This is used to hold the server certificate used */
1045 struct cert_st /* CERT */ *cert;
1047 * the session_id_context is used to ensure sessions are only reused in
1048 * the appropriate context
1050 unsigned int sid_ctx_length;
1051 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1052 /* This can also be in the session once a session is established */
1053 SSL_SESSION *session;
1054 /* Default generate session ID callback. */
1055 GEN_SESSION_CB generate_session_id;
1058 * 0 don't care about verify failure.
1059 * 1 fail if verify fails
1061 uint32_t verify_mode;
1062 /* fail if callback returns 0 */
1063 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1064 /* optional informational callback */
1065 void (*info_callback) (const SSL *ssl, int type, int val);
1066 /* error bytes to be written */
1070 # ifndef OPENSSL_NO_PSK
1071 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
1073 unsigned int max_identity_len,
1075 unsigned int max_psk_len);
1076 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
1078 unsigned int max_psk_len);
1081 /* Verified chain of peer */
1082 STACK_OF(X509) *verified_chain;
1084 /* extra application data */
1085 CRYPTO_EX_DATA ex_data;
1086 /* for server side, keep the list of CA_dn we can use */
1087 STACK_OF(X509_NAME) *client_CA;
1089 /* protocol behaviour */
1093 int min_proto_version;
1094 int max_proto_version;
1097 /* what was passed, used for SSLv3/TLS rollback check */
1101 * If we're using more than one pipeline how should we divide the data
1102 * up between the pipes?
1104 unsigned int split_send_fragment;
1106 * Maximum amount of data to send in one fragment. actual record size can
1107 * be more than this due to padding and MAC overheads.
1109 unsigned int max_send_fragment;
1111 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1112 unsigned int max_pipelines;
1114 /* TLS extension debug callback */
1115 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1116 const unsigned char *data, int len, void *arg);
1117 void *tlsext_debug_arg;
1118 char *tlsext_hostname;
1120 * no further mod of servername
1121 * 0 : call the servername extension callback.
1122 * 1 : prepare 2, allow last ack just after in server callback.
1123 * 2 : don't call servername callback, no ack in server hello
1125 int servername_done;
1126 /* certificate status request info */
1127 /* Status type or -1 if no status type */
1128 int tlsext_status_type;
1129 # ifndef OPENSSL_NO_CT
1131 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1132 * If they are not, the connection should be aborted.
1134 ct_validation_cb ct_validation_callback;
1135 /* User-supplied argument tha tis passed to the ct_validation_callback */
1136 void *ct_validation_callback_arg;
1138 * Consolidated stack of SCTs from all sources.
1139 * Lazily populated by CT_get_peer_scts(SSL*)
1141 STACK_OF(SCT) *scts;
1142 /* Raw extension data, if seen */
1143 unsigned char *tlsext_scts;
1144 /* Length of raw extension data, if seen */
1145 uint16_t tlsext_scts_len;
1146 /* Have we attempted to find/parse SCTs yet? */
1149 /* Expect OCSP CertificateStatus message */
1150 int tlsext_status_expected;
1151 /* OCSP status request only */
1152 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1153 X509_EXTENSIONS *tlsext_ocsp_exts;
1154 /* OCSP response received or to be sent */
1155 unsigned char *tlsext_ocsp_resp;
1156 int tlsext_ocsp_resplen;
1157 /* RFC4507 session ticket expected to be received or sent */
1158 int tlsext_ticket_expected;
1159 # ifndef OPENSSL_NO_EC
1160 size_t tlsext_ecpointformatlist_length;
1162 unsigned char *tlsext_ecpointformatlist;
1163 size_t tlsext_ellipticcurvelist_length;
1165 unsigned char *tlsext_ellipticcurvelist;
1166 # endif /* OPENSSL_NO_EC */
1167 /* TLS Session Ticket extension override */
1168 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1169 /* TLS Session Ticket extension callback */
1170 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1171 void *tls_session_ticket_ext_cb_arg;
1172 /* TLS pre-shared secret session resumption */
1173 tls_session_secret_cb_fn tls_session_secret_cb;
1174 void *tls_session_secret_cb_arg;
1175 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1176 # ifndef OPENSSL_NO_NEXTPROTONEG
1178 * Next protocol negotiation. For the client, this is the protocol that
1179 * we sent in NextProtocol and is set when handling ServerHello
1180 * extensions. For a server, this is the client's selected_protocol from
1181 * NextProtocol and is set when handling the NextProtocol message, before
1182 * the Finished message.
1184 unsigned char *next_proto_negotiated;
1185 unsigned char next_proto_negotiated_len;
1187 # define session_ctx initial_ctx
1189 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1190 /* What's been chosen */
1191 SRTP_PROTECTION_PROFILE *srtp_profile;
1193 * Is use of the Heartbeat extension negotiated?
1196 * 2: enabled, but not allowed to send Requests
1198 unsigned int tlsext_heartbeat;
1199 /* Indicates if a HeartbeatRequest is in flight */
1200 unsigned int tlsext_hb_pending;
1201 /* HeartbeatRequest sequence number */
1202 unsigned int tlsext_hb_seq;
1204 * For a client, this contains the list of supported protocols in wire
1207 unsigned char *alpn_client_proto_list;
1208 unsigned alpn_client_proto_list_len;
1211 * 1 if we are renegotiating.
1212 * 2 if we are a server and are inside a handshake
1213 * (i.e. not just sending a HelloRequest)
1216 # ifndef OPENSSL_NO_SRP
1217 /* ctx for SRP authentication */
1221 * Callback for disabling session caching and ticket support on a session
1222 * basis, depending on the chosen cipher.
1224 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1226 RECORD_LAYER rlayer;
1228 /* Default password callback. */
1229 pem_password_cb *default_passwd_callback;
1231 /* Default password callback user data. */
1232 void *default_passwd_callback_userdata;
1234 /* Async Job info */
1236 ASYNC_WAIT_CTX *waitctx;
1238 CRYPTO_RWLOCK *lock;
1242 typedef struct ssl3_state_st {
1244 int read_mac_secret_size;
1245 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1246 int write_mac_secret_size;
1247 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1248 unsigned char server_random[SSL3_RANDOM_SIZE];
1249 unsigned char client_random[SSL3_RANDOM_SIZE];
1250 /* flags for countermeasure against known-IV weakness */
1251 int need_empty_fragments;
1252 int empty_fragment_done;
1253 /* used during startup, digest all incoming/outgoing packets */
1254 BIO *handshake_buffer;
1256 * When handshake digest is determined, buffer is hashed and
1257 * freed and MD_CTX for the required digest is stored here.
1259 EVP_MD_CTX *handshake_dgst;
1261 * Set whenever an expected ChangeCipherSpec message is processed.
1262 * Unset when the peer's Finished message is received.
1263 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1265 int change_cipher_spec;
1269 * we allow one fatal and one warning alert to be outstanding, send close
1270 * alert via the warning alert
1273 unsigned char send_alert[2];
1275 * This flag is set when we should renegotiate ASAP, basically when there
1276 * is no more data in the read or write buffers
1279 int total_renegotiations;
1280 int num_renegotiations;
1281 int in_read_app_data;
1283 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1284 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1286 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1287 int peer_finish_md_len;
1288 unsigned long message_size;
1290 /* used to hold the new cipher we are going to use */
1291 const SSL_CIPHER *new_cipher;
1292 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1293 EVP_PKEY *pkey; /* holds short lived DH/ECDH key */
1295 /* used for certificate requests */
1298 char ctype[SSL3_CT_NUMBER];
1299 STACK_OF(X509_NAME) *ca_names;
1300 int key_block_length;
1301 unsigned char *key_block;
1302 const EVP_CIPHER *new_sym_enc;
1303 const EVP_MD *new_hash;
1304 int new_mac_pkey_type;
1305 int new_mac_secret_size;
1306 # ifndef OPENSSL_NO_COMP
1307 const SSL_COMP *new_compression;
1309 char *new_compression;
1312 /* Raw values of the cipher list from a client */
1313 unsigned char *ciphers_raw;
1314 size_t ciphers_rawlen;
1315 /* Temporary storage for premaster secret */
1318 #ifndef OPENSSL_NO_PSK
1319 /* Temporary storage for PSK key */
1324 * signature algorithms peer reports: e.g. supported signature
1325 * algorithms extension for server or as part of a certificate
1326 * request for client.
1328 unsigned char *peer_sigalgs;
1329 /* Size of above array */
1330 size_t peer_sigalgslen;
1331 /* Digest peer uses for signing */
1332 const EVP_MD *peer_md;
1333 /* Array of digests used for signing */
1334 const EVP_MD *md[SSL_PKEY_NUM];
1336 * Set if corresponding CERT_PKEY can be used with current
1337 * SSL session: e.g. appropriate curve, signature algorithms etc.
1338 * If zero it can't be used at all.
1340 uint32_t valid_flags[SSL_PKEY_NUM];
1342 * For servers the following masks are for the key and auth algorithms
1343 * that are supported by the certs below. For clients they are masks of
1344 * *disabled* algorithms based on the current session.
1349 * The following are used by the client to see if a cipher is allowed or
1350 * not. It contains the minimum and maximum version the client's using
1351 * based on what it knows so far.
1357 /* Connection binding to prevent renegotiation attacks */
1358 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1359 unsigned char previous_client_finished_len;
1360 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1361 unsigned char previous_server_finished_len;
1362 int send_connection_binding; /* TODOEKR */
1364 # ifndef OPENSSL_NO_NEXTPROTONEG
1366 * Set if we saw the Next Protocol Negotiation extension from our peer.
1368 int next_proto_neg_seen;
1372 * ALPN information (we are in the process of transitioning from NPN to
1377 * In a server these point to the selected ALPN protocol after the
1378 * ClientHello has been processed. In a client these contain the protocol
1379 * that the server selected once the ServerHello has been processed.
1381 unsigned char *alpn_selected;
1382 size_t alpn_selected_len;
1383 /* used by the server to know what options were proposed */
1384 unsigned char *alpn_proposed;
1385 size_t alpn_proposed_len;
1386 /* used by the client to know if it actually sent alpn */
1389 # ifndef OPENSSL_NO_EC
1391 * This is set to true if we believe that this is a version of Safari
1392 * running on OS X 10.6 or newer. We wish to know this because Safari on
1393 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1395 char is_probably_safari;
1396 # endif /* !OPENSSL_NO_EC */
1398 /* For clients: peer temporary key */
1399 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1406 /* DTLS structures */
1408 # ifndef OPENSSL_NO_SCTP
1409 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1412 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1413 # define DTLS1_MAX_MTU_OVERHEAD 48
1416 * Flag used in message reuse to indicate the buffer contains the record
1417 * header as well as the the handshake message header.
1419 # define DTLS1_SKIP_RECORD_HEADER 2
1421 struct dtls1_retransmit_state {
1422 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1423 EVP_MD_CTX *write_hash; /* used for mac generation */
1424 COMP_CTX *compress; /* compression */
1425 SSL_SESSION *session;
1426 unsigned short epoch;
1429 struct hm_header_st {
1431 unsigned long msg_len;
1433 unsigned long frag_off;
1434 unsigned long frag_len;
1435 unsigned int is_ccs;
1436 struct dtls1_retransmit_state saved_retransmit_state;
1439 struct dtls1_timeout_st {
1440 /* Number of read timeouts so far */
1441 unsigned int read_timeouts;
1442 /* Number of write timeouts so far */
1443 unsigned int write_timeouts;
1444 /* Number of alerts received so far */
1445 unsigned int num_alerts;
1448 typedef struct hm_fragment_st {
1449 struct hm_header_st msg_header;
1450 unsigned char *fragment;
1451 unsigned char *reassembly;
1454 typedef struct pqueue_st pqueue;
1455 typedef struct pitem_st pitem;
1458 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1463 typedef struct pitem_st *piterator;
1465 pitem *pitem_new(unsigned char *prio64be, void *data);
1466 void pitem_free(pitem *item);
1467 pqueue* pqueue_new(void);
1468 void pqueue_free(pqueue *pq);
1469 pitem *pqueue_insert(pqueue *pq, pitem *item);
1470 pitem *pqueue_peek(pqueue *pq);
1471 pitem *pqueue_pop(pqueue *pq);
1472 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1473 pitem *pqueue_iterator(pqueue *pq);
1474 pitem *pqueue_next(piterator *iter);
1475 void pqueue_print(pqueue *pq);
1476 int pqueue_size(pqueue *pq);
1478 typedef struct dtls1_state_st {
1479 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1480 unsigned int cookie_len;
1481 unsigned int cookie_verified;
1483 /* handshake message numbers */
1484 unsigned short handshake_write_seq;
1485 unsigned short next_handshake_write_seq;
1486 unsigned short handshake_read_seq;
1488 /* Buffered handshake messages */
1489 pqueue *buffered_messages;
1490 /* Buffered (sent) handshake records */
1491 pqueue *sent_messages;
1493 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1494 unsigned int mtu; /* max DTLS packet size */
1495 struct hm_header_st w_msg_hdr;
1496 struct hm_header_st r_msg_hdr;
1497 struct dtls1_timeout_st timeout;
1499 * Indicates when the last handshake msg or heartbeat sent will timeout
1501 struct timeval next_timeout;
1502 /* Timeout duration */
1503 unsigned short timeout_duration;
1505 unsigned int retransmitting;
1506 # ifndef OPENSSL_NO_SCTP
1507 int shutdown_received;
1513 # ifndef OPENSSL_NO_EC
1515 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1517 # define EXPLICIT_PRIME_CURVE_TYPE 1
1518 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1519 # define NAMED_CURVE_TYPE 3
1520 # endif /* OPENSSL_NO_EC */
1522 typedef struct cert_pkey_st {
1524 EVP_PKEY *privatekey;
1525 /* Chain for this certificate */
1526 STACK_OF(X509) *chain;
1529 * serverinfo data for this certificate. The data is in TLS Extension
1530 * wire format, specifically it's a series of records like:
1531 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1533 * uint8_t data[length];
1535 unsigned char *serverinfo;
1536 size_t serverinfo_length;
1538 /* Retrieve Suite B flags */
1539 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1540 /* Uses to check strict mode: suite B modes are always strict */
1541 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1542 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1545 unsigned short ext_type;
1547 * Per-connection flags relating to this extension type: not used if
1548 * part of an SSL_CTX structure.
1551 custom_ext_add_cb add_cb;
1552 custom_ext_free_cb free_cb;
1554 custom_ext_parse_cb parse_cb;
1556 } custom_ext_method;
1558 /* ext_flags values */
1561 * Indicates an extension has been received. Used to check for unsolicited or
1562 * duplicate extensions.
1564 # define SSL_EXT_FLAG_RECEIVED 0x1
1566 * Indicates an extension has been sent: used to enable sending of
1567 * corresponding ServerHello extension.
1569 # define SSL_EXT_FLAG_SENT 0x2
1572 custom_ext_method *meths;
1574 } custom_ext_methods;
1576 typedef struct cert_st {
1577 /* Current active set */
1579 * ALWAYS points to an element of the pkeys array
1580 * Probably it would make more sense to store
1581 * an index, not a pointer.
1584 # ifndef OPENSSL_NO_DH
1586 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1589 /* Flags related to certificates */
1590 uint32_t cert_flags;
1591 CERT_PKEY pkeys[SSL_PKEY_NUM];
1593 * Certificate types (received or sent) in certificate request message.
1594 * On receive this is only set if number of certificate types exceeds
1597 unsigned char *ctypes;
1600 * suppported signature algorithms. When set on a client this is sent in
1601 * the client hello as the supported signature algorithms extension. For
1602 * servers it represents the signature algorithms we are willing to use.
1604 unsigned char *conf_sigalgs;
1605 /* Size of above array */
1606 size_t conf_sigalgslen;
1608 * Client authentication signature algorithms, if not set then uses
1609 * conf_sigalgs. On servers these will be the signature algorithms sent
1610 * to the client in a cerificate request for TLS 1.2. On a client this
1611 * represents the signature algortithms we are willing to use for client
1614 unsigned char *client_sigalgs;
1615 /* Size of above array */
1616 size_t client_sigalgslen;
1618 * Signature algorithms shared by client and server: cached because these
1619 * are used most often.
1621 TLS_SIGALGS *shared_sigalgs;
1622 size_t shared_sigalgslen;
1624 * Certificate setup callback: if set is called whenever a certificate
1625 * may be required (client or server). the callback can then examine any
1626 * appropriate parameters and setup any certificates required. This
1627 * allows advanced applications to select certificates on the fly: for
1628 * example based on supported signature algorithms or curves.
1630 int (*cert_cb) (SSL *ssl, void *arg);
1633 * Optional X509_STORE for chain building or certificate validation If
1634 * NULL the parent SSL_CTX store is used instead.
1636 X509_STORE *chain_store;
1637 X509_STORE *verify_store;
1638 /* Custom extension methods for server and client */
1639 custom_ext_methods cli_ext;
1640 custom_ext_methods srv_ext;
1641 /* Security callback */
1642 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1643 void *other, void *ex);
1644 /* Security level */
1647 #ifndef OPENSSL_NO_PSK
1648 /* If not NULL psk identity hint to use for servers */
1649 char *psk_identity_hint;
1651 int references; /* >1 only if SSL_copy_session_id is used */
1652 CRYPTO_RWLOCK *lock;
1655 /* Structure containing decoded values of signature algorithms extension */
1656 struct tls_sigalgs_st {
1657 /* NID of hash algorithm */
1659 /* NID of signature algorithm */
1661 /* Combined hash and signature NID */
1662 int signandhash_nid;
1663 /* Raw values used in extension */
1664 unsigned char rsign;
1665 unsigned char rhash;
1668 # define FP_ICC (int (*)(const void *,const void *))
1671 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1672 * of a mess of functions, but hell, think of it as an opaque structure :-)
1674 typedef struct ssl3_enc_method {
1675 int (*enc) (SSL *, SSL3_RECORD *, unsigned int, int);
1676 int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int);
1677 int (*setup_key_block) (SSL *);
1678 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1680 int (*change_cipher_state) (SSL *, int);
1681 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1682 int finish_mac_length;
1683 const char *client_finished_label;
1684 int client_finished_label_len;
1685 const char *server_finished_label;
1686 int server_finished_label_len;
1687 int (*alert_value) (int);
1688 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1689 const char *, size_t,
1690 const unsigned char *, size_t,
1692 /* Various flags indicating protocol version requirements */
1694 /* Handshake header length */
1696 /* Set the handshake header */
1697 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1698 /* Write out handshake message */
1699 int (*do_write) (SSL *s);
1702 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1703 # define ssl_handshake_start(s) \
1704 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1705 # define ssl_set_handshake_header(s, htype, len) \
1706 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1707 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1709 /* Values for enc_flags */
1711 /* Uses explicit IV for CBC mode */
1712 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1713 /* Uses signature algorithms extension */
1714 # define SSL_ENC_FLAG_SIGALGS 0x2
1715 /* Uses SHA256 default PRF */
1716 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1718 # define SSL_ENC_FLAG_DTLS 0x8
1720 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1721 * apply to others in future.
1723 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1725 # ifndef OPENSSL_NO_COMP
1726 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1727 typedef struct ssl3_comp_st {
1728 int comp_id; /* The identifier byte for this compression
1730 char *name; /* Text name used for the compression type */
1731 COMP_METHOD *method; /* The method :-) */
1735 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1737 __owur const SSL_METHOD *ssl_bad_method(int ver);
1738 __owur const SSL_METHOD *sslv3_method(void);
1739 __owur const SSL_METHOD *sslv3_server_method(void);
1740 __owur const SSL_METHOD *sslv3_client_method(void);
1741 __owur const SSL_METHOD *tlsv1_method(void);
1742 __owur const SSL_METHOD *tlsv1_server_method(void);
1743 __owur const SSL_METHOD *tlsv1_client_method(void);
1744 __owur const SSL_METHOD *tlsv1_1_method(void);
1745 __owur const SSL_METHOD *tlsv1_1_server_method(void);
1746 __owur const SSL_METHOD *tlsv1_1_client_method(void);
1747 __owur const SSL_METHOD *tlsv1_2_method(void);
1748 __owur const SSL_METHOD *tlsv1_2_server_method(void);
1749 __owur const SSL_METHOD *tlsv1_2_client_method(void);
1750 __owur const SSL_METHOD *dtlsv1_method(void);
1751 __owur const SSL_METHOD *dtlsv1_server_method(void);
1752 __owur const SSL_METHOD *dtlsv1_client_method(void);
1753 __owur const SSL_METHOD *dtlsv1_2_method(void);
1754 __owur const SSL_METHOD *dtlsv1_2_server_method(void);
1755 __owur const SSL_METHOD *dtlsv1_2_client_method(void);
1757 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1758 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1759 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1760 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1761 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1762 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1765 * Flags for SSL methods
1767 #define SSL_METHOD_NO_FIPS (1U<<0)
1768 #define SSL_METHOD_NO_SUITEB (1U<<1)
1770 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1771 s_connect, s_get_meth, enc_data) \
1772 const SSL_METHOD *func_name(void) \
1774 static const SSL_METHOD func_name##_data= { \
1788 ssl3_renegotiate_check, \
1791 ssl3_dispatch_alert, \
1794 ssl3_get_cipher_by_char, \
1795 ssl3_put_cipher_by_char, \
1800 tls1_default_timeout, \
1802 ssl_undefined_void_function, \
1803 ssl3_callback_ctrl, \
1804 ssl3_ctx_callback_ctrl, \
1806 return &func_name##_data; \
1809 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
1810 const SSL_METHOD *func_name(void) \
1812 static const SSL_METHOD func_name##_data= { \
1814 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1826 ssl3_renegotiate_check, \
1829 ssl3_dispatch_alert, \
1832 ssl3_get_cipher_by_char, \
1833 ssl3_put_cipher_by_char, \
1838 ssl3_default_timeout, \
1840 ssl_undefined_void_function, \
1841 ssl3_callback_ctrl, \
1842 ssl3_ctx_callback_ctrl, \
1844 return &func_name##_data; \
1847 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
1848 s_connect, s_get_meth, enc_data) \
1849 const SSL_METHOD *func_name(void) \
1851 static const SSL_METHOD func_name##_data= { \
1865 ssl3_renegotiate_check, \
1867 dtls1_write_app_data_bytes, \
1868 dtls1_dispatch_alert, \
1871 ssl3_get_cipher_by_char, \
1872 ssl3_put_cipher_by_char, \
1877 dtls1_default_timeout, \
1879 ssl_undefined_void_function, \
1880 ssl3_callback_ctrl, \
1881 ssl3_ctx_callback_ctrl, \
1883 return &func_name##_data; \
1886 struct openssl_ssl_test_functions {
1887 int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
1888 int (*p_ssl3_setup_buffers) (SSL *s);
1889 # ifndef OPENSSL_NO_HEARTBEATS
1890 int (*p_dtls1_process_heartbeat) (SSL *s,
1891 unsigned char *p, unsigned int length);
1895 const char *ssl_protocol_to_string(int version);
1897 # ifndef OPENSSL_UNIT_TEST
1899 void ssl_clear_cipher_ctx(SSL *s);
1900 int ssl_clear_bad_session(SSL *s);
1901 __owur CERT *ssl_cert_new(void);
1902 __owur CERT *ssl_cert_dup(CERT *cert);
1903 void ssl_cert_clear_certs(CERT *c);
1904 void ssl_cert_free(CERT *c);
1905 __owur int ssl_get_new_session(SSL *s, int session);
1906 __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
1907 const PACKET *session_id);
1908 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1909 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1910 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1911 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1912 const SSL_CIPHER *const *bp);
1913 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1914 STACK_OF(SSL_CIPHER) **pref,
1915 STACK_OF(SSL_CIPHER) **sorted,
1916 const char *rule_str, CERT *c);
1917 void ssl_update_cache(SSL *s, int mode);
1918 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1919 const EVP_MD **md, int *mac_pkey_type,
1920 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1921 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1922 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1923 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1924 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1925 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1926 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1927 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1928 __owur int ssl_cert_set_current(CERT *c, long arg);
1929 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1930 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1933 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1934 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1935 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1936 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1938 __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other);
1939 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other);
1941 int ssl_undefined_function(SSL *s);
1942 __owur int ssl_undefined_void_function(void);
1943 __owur int ssl_undefined_const_function(const SSL *s);
1944 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1945 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1946 size_t *serverinfo_length);
1947 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1948 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1949 void ssl_set_masks(SSL *s);
1950 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1951 __owur int ssl_verify_alarm_type(long type);
1952 void ssl_sort_cipher_list(void);
1953 void ssl_load_ciphers(void);
1954 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1955 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1957 __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm, int nid);
1958 __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey);
1959 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
1961 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1962 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1963 void ssl3_init_finished_mac(SSL *s);
1964 __owur int ssl3_setup_key_block(SSL *s);
1965 __owur int ssl3_change_cipher_state(SSL *s, int which);
1966 void ssl3_cleanup_key_block(SSL *s);
1967 __owur int ssl3_do_write(SSL *s, int type);
1968 int ssl3_send_alert(SSL *s, int level, int desc);
1969 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1970 unsigned char *p, int len);
1971 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1972 __owur int ssl3_num_ciphers(void);
1973 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1974 int ssl3_renegotiate(SSL *ssl);
1975 int ssl3_renegotiate_check(SSL *ssl);
1976 __owur int ssl3_dispatch_alert(SSL *s);
1977 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1979 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1980 void ssl3_free_digest_list(SSL *s);
1981 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1982 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
1983 STACK_OF(SSL_CIPHER) *clnt,
1984 STACK_OF(SSL_CIPHER) *srvr);
1985 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1986 __owur int ssl3_new(SSL *s);
1987 void ssl3_free(SSL *s);
1988 __owur int ssl3_read(SSL *s, void *buf, int len);
1989 __owur int ssl3_peek(SSL *s, void *buf, int len);
1990 __owur int ssl3_write(SSL *s, const void *buf, int len);
1991 __owur int ssl3_shutdown(SSL *s);
1992 void ssl3_clear(SSL *s);
1993 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1994 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1995 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1996 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1998 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1999 __owur long ssl3_default_timeout(void);
2001 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
2002 __owur int ssl3_handshake_write(SSL *s);
2004 __owur int ssl_allow_compression(SSL *s);
2006 __owur int ssl_set_client_hello_version(SSL *s);
2007 __owur int ssl_check_version_downgrade(SSL *s);
2008 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
2009 __owur int ssl_choose_server_version(SSL *s);
2010 __owur int ssl_choose_client_version(SSL *s, int version);
2011 int ssl_get_client_min_max_version(const SSL *s, int *min_version, int *max_version);
2013 __owur long tls1_default_timeout(void);
2014 __owur int dtls1_do_write(SSL *s, int type);
2015 void dtls1_set_message_header(SSL *s,
2018 unsigned long frag_off,
2019 unsigned long frag_len);
2021 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
2023 __owur int dtls1_read_failed(SSL *s, int code);
2024 __owur int dtls1_buffer_message(SSL *s, int ccs);
2025 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found);
2026 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
2027 int dtls1_retransmit_buffered_messages(SSL *s);
2028 void dtls1_clear_record_buffer(SSL *s);
2029 void dtls1_get_message_header(unsigned char *data,
2030 struct hm_header_st *msg_hdr);
2031 __owur long dtls1_default_timeout(void);
2032 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
2033 __owur int dtls1_check_timeout_num(SSL *s);
2034 __owur int dtls1_handle_timeout(SSL *s);
2035 void dtls1_start_timer(SSL *s);
2036 void dtls1_stop_timer(SSL *s);
2037 __owur int dtls1_is_timer_expired(SSL *s);
2038 void dtls1_double_timeout(SSL *s);
2039 __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
2040 unsigned char *cookie,
2041 unsigned char cookie_len);
2042 __owur int dtls1_send_newsession_ticket(SSL *s);
2043 __owur unsigned int dtls1_min_mtu(SSL *s);
2044 void dtls1_hm_fragment_free(hm_fragment *frag);
2045 __owur int dtls1_query_mtu(SSL *s);
2047 __owur int tls1_new(SSL *s);
2048 void tls1_free(SSL *s);
2049 void tls1_clear(SSL *s);
2050 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2051 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2053 __owur int dtls1_new(SSL *s);
2054 void dtls1_free(SSL *s);
2055 void dtls1_clear(SSL *s);
2056 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2057 __owur int dtls1_shutdown(SSL *s);
2059 __owur int dtls1_dispatch_alert(SSL *s);
2061 __owur int ssl_init_wbio_buffer(SSL *s, int push);
2062 void ssl_free_wbio_buffer(SSL *s);
2064 __owur int tls1_change_cipher_state(SSL *s, int which);
2065 __owur int tls1_setup_key_block(SSL *s);
2066 __owur int tls1_final_finish_mac(SSL *s,
2067 const char *str, int slen, unsigned char *p);
2068 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
2069 unsigned char *p, int len);
2070 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2071 const char *label, size_t llen,
2072 const unsigned char *p, size_t plen,
2074 __owur int tls1_alert_code(int code);
2075 __owur int ssl3_alert_code(int code);
2076 __owur int ssl_ok(SSL *s);
2078 # ifndef OPENSSL_NO_EC
2079 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
2082 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2084 # ifndef OPENSSL_NO_EC
2085 __owur int tls1_ec_curve_id2nid(int curve_id);
2086 __owur int tls1_ec_nid2curve_id(int nid);
2087 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
2088 __owur int tls1_shared_curve(SSL *s, int nmatch);
2089 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
2090 int *curves, size_t ncurves);
2091 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
2093 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
2094 # endif /* OPENSSL_NO_EC */
2096 __owur int tls1_shared_list(SSL *s,
2097 const unsigned char *l1, size_t l1len,
2098 const unsigned char *l2, size_t l2len, int nmatch);
2099 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
2100 unsigned char *limit, int *al);
2101 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
2102 unsigned char *limit, int *al);
2103 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2104 void ssl_set_default_md(SSL *s);
2105 __owur int tls1_set_server_sigalgs(SSL *s);
2106 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2107 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2108 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2109 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2111 # ifndef OPENSSL_NO_HEARTBEATS
2112 __owur int dtls1_heartbeat(SSL *s);
2113 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2116 __owur int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
2117 const PACKET *session_id,
2120 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2122 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2123 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2124 void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
2126 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2127 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2128 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2130 void tls1_set_cert_validity(SSL *s);
2132 #ifndef OPENSSL_NO_CT
2133 __owur int ssl_validate_ct(SSL *s);
2136 # ifndef OPENSSL_NO_DH
2137 __owur DH *ssl_get_auto_dh(SSL *s);
2140 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2141 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2143 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2144 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2145 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2147 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2149 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2151 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2152 __owur long ssl_get_algorithm2(SSL *s);
2153 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2154 const unsigned char *psig, size_t psiglen);
2155 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2156 __owur int tls1_process_sigalgs(SSL *s);
2157 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2158 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2159 const unsigned char *sig, EVP_PKEY *pkey);
2160 void ssl_set_client_disabled(SSL *s);
2161 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2163 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2165 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2166 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2168 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2170 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2171 __owur const EVP_MD *ssl_md(int idx);
2172 __owur const EVP_MD *ssl_handshake_md(SSL *s);
2173 __owur const EVP_MD *ssl_prf_md(SSL *s);
2176 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2177 __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2178 unsigned char *md_out,
2179 size_t *md_out_size,
2180 const unsigned char header[13],
2181 const unsigned char *data,
2182 size_t data_plus_mac_size,
2183 size_t data_plus_mac_plus_padding_size,
2184 const unsigned char *mac_secret,
2185 unsigned mac_secret_length, char is_sslv3);
2187 void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2188 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2189 size_t data_len, size_t orig_len);
2191 __owur int srp_generate_server_master_secret(SSL *s);
2192 __owur int srp_generate_client_master_secret(SSL *s);
2193 __owur int srp_verify_server_param(SSL *s, int *al);
2197 void custom_ext_init(custom_ext_methods *meths);
2199 __owur int custom_ext_parse(SSL *s, int server,
2200 unsigned int ext_type,
2201 const unsigned char *ext_data, size_t ext_size, int *al);
2202 __owur int custom_ext_add(SSL *s, int server,
2203 unsigned char **pret, unsigned char *limit, int *al);
2205 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2206 void custom_exts_free(custom_ext_methods *exts);
2210 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2211 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2212 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat