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
381 /* Bits for algorithm_ssl (protocol version) */
382 # define SSL_SSLV3 0x00000002U
383 # define SSL_TLSV1 0x00000004U
384 # define SSL_TLSV1_2 0x00000008U
387 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
388 * sure to update this constant too
391 # define SSL_MD_MD5_IDX 0
392 # define SSL_MD_SHA1_IDX 1
393 # define SSL_MD_GOST94_IDX 2
394 # define SSL_MD_GOST89MAC_IDX 3
395 # define SSL_MD_SHA256_IDX 4
396 # define SSL_MD_SHA384_IDX 5
397 # define SSL_MD_GOST12_256_IDX 6
398 # define SSL_MD_GOST89MAC12_IDX 7
399 # define SSL_MD_GOST12_512_IDX 8
400 # define SSL_MD_MD5_SHA1_IDX 9
401 # define SSL_MD_SHA224_IDX 10
402 # define SSL_MD_SHA512_IDX 11
403 # define SSL_MAX_DIGEST 12
405 /* Bits for algorithm2 (handshake digests and other extra flags) */
407 /* Bits 0-7 are handshake MAC */
408 # define SSL_HANDSHAKE_MAC_MASK 0xFF
409 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
410 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
411 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
412 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
413 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
414 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
415 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
417 /* Bits 8-15 bits are PRF */
418 # define TLS1_PRF_DGST_SHIFT 8
419 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
420 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
421 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
422 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
423 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
424 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
425 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
428 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
429 * goes into algorithm2)
431 # define TLS1_STREAM_MAC 0x10000
433 # define SSL_DEFAULT_MASK 0X00000020U
435 # define SSL_STRONG_NONE 0x00000001U
436 # define SSL_LOW 0x00000002U
437 # define SSL_MEDIUM 0x00000004U
438 # define SSL_HIGH 0x00000008U
439 # define SSL_FIPS 0x00000010U
440 # define SSL_NOT_DEFAULT 0x00000020U
442 /* we have used 0000003f - 26 bits left to go */
444 /* Check if an SSL structure is using DTLS */
445 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
446 /* See if we need explicit IV */
447 # define SSL_USE_EXPLICIT_IV(s) \
448 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
450 * See if we use signature algorithms extension and signature algorithm
453 # define SSL_USE_SIGALGS(s) \
454 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
456 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
457 * apply to others in future.
459 # define SSL_USE_TLS1_2_CIPHERS(s) \
460 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
462 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
463 * flags because it may not be set to correct version yet.
465 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
466 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
467 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
469 # ifdef TLSEXT_TYPE_encrypt_then_mac
470 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
472 # define SSL_USE_ETM(s) (0)
475 /* Mostly for SSLv3 */
476 # define SSL_PKEY_RSA_ENC 0
477 # define SSL_PKEY_RSA_SIGN 1
478 # define SSL_PKEY_DSA_SIGN 2
479 # define SSL_PKEY_ECC 3
480 # define SSL_PKEY_GOST01 4
481 # define SSL_PKEY_GOST12_256 5
482 # define SSL_PKEY_GOST12_512 6
483 # define SSL_PKEY_NUM 7
485 * Pseudo-constant. GOST cipher suites can use different certs for 1
486 * SSL_CIPHER. So let's see which one we have in fact.
488 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
491 * SSL_kRSA <- RSA_ENC
492 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
493 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
494 * SSL_aRSA <- RSA_ENC | RSA_SIGN
495 * SSL_aDSS <- DSA_SIGN
499 #define CERT_INVALID 0
500 #define CERT_PUBLIC_KEY 1
501 #define CERT_PRIVATE_KEY 2
505 /* CipherSuite length. SSLv3 and all TLS versions. */
506 #define TLS_CIPHER_LEN 2
507 /* used to hold info on the particular ciphers used */
508 struct ssl_cipher_st {
510 const char *name; /* text name */
511 uint32_t id; /* id, 4 bytes, first is version */
513 * changed in 1.0.0: these four used to be portions of a single value
516 uint32_t algorithm_mkey; /* key exchange algorithm */
517 uint32_t algorithm_auth; /* server authentication */
518 uint32_t algorithm_enc; /* symmetric encryption */
519 uint32_t algorithm_mac; /* symmetric authentication */
520 uint32_t algorithm_ssl; /* (major) protocol version */
521 uint32_t algo_strength; /* strength and export flags */
522 uint32_t algorithm2; /* Extra flags */
523 int32_t strength_bits; /* Number of bits really used */
524 uint32_t alg_bits; /* Number of bits for algorithm */
527 /* Used to hold SSL/TLS functions */
528 struct ssl_method_st {
532 int (*ssl_new) (SSL *s);
533 void (*ssl_clear) (SSL *s);
534 void (*ssl_free) (SSL *s);
535 int (*ssl_accept) (SSL *s);
536 int (*ssl_connect) (SSL *s);
537 int (*ssl_read) (SSL *s, void *buf, int len);
538 int (*ssl_peek) (SSL *s, void *buf, int len);
539 int (*ssl_write) (SSL *s, const void *buf, int len);
540 int (*ssl_shutdown) (SSL *s);
541 int (*ssl_renegotiate) (SSL *s);
542 int (*ssl_renegotiate_check) (SSL *s);
543 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
544 unsigned char *buf, int len, int peek);
545 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
546 int (*ssl_dispatch_alert) (SSL *s);
547 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
548 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
549 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
550 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
551 int (*ssl_pending) (const SSL *s);
552 int (*num_ciphers) (void);
553 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
554 const struct ssl_method_st *(*get_ssl_method) (int version);
555 long (*get_timeout) (void);
556 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
557 int (*ssl_version) (void);
558 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
559 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
563 * Lets make this into an ASN.1 type structure as follows
564 * SSL_SESSION_ID ::= SEQUENCE {
565 * version INTEGER, -- structure version number
566 * SSLversion INTEGER, -- SSL version number
567 * Cipher OCTET STRING, -- the 3 byte cipher ID
568 * Session_ID OCTET STRING, -- the Session ID
569 * Master_key OCTET STRING, -- the master key
570 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
571 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
572 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
573 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
574 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
575 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
576 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
577 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
578 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
579 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
580 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
581 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
582 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
583 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
585 * Look in ssl/ssl_asn1.c for more details
586 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
588 struct ssl_session_st {
589 int ssl_version; /* what ssl version session info is being
591 int master_key_length;
592 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
593 /* session_id - valid? */
594 unsigned int session_id_length;
595 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
597 * this is used to determine whether the session is being reused in the
598 * appropriate context. It is up to the application to set this, via
601 unsigned int sid_ctx_length;
602 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
603 # ifndef OPENSSL_NO_PSK
604 char *psk_identity_hint;
608 * Used to indicate that session resumption is not allowed. Applications
609 * can also set this bit for a new session via not_resumable_session_cb
610 * to disable session caching and tickets.
613 /* This is the cert and type for the other end. */
616 /* Certificate chain peer sent */
617 STACK_OF(X509) *peer_chain;
619 * when app_verify_callback accepts a session where the peer's
620 * certificate is not ok, we must remember the error for session reuse:
622 long verify_result; /* only for servers */
626 unsigned int compress_meth; /* Need to lookup the method */
627 const SSL_CIPHER *cipher;
628 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
629 * to load the 'cipher' structure */
630 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
631 CRYPTO_EX_DATA ex_data; /* application specific data */
633 * These are used to make removal of session-ids more efficient and to
634 * implement a maximum cache size.
636 struct ssl_session_st *prev, *next;
637 char *tlsext_hostname;
638 # ifndef OPENSSL_NO_EC
639 size_t tlsext_ecpointformatlist_length;
640 unsigned char *tlsext_ecpointformatlist; /* peer's list */
641 size_t tlsext_ellipticcurvelist_length;
642 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
643 # endif /* OPENSSL_NO_EC */
645 unsigned char *tlsext_tick; /* Session ticket */
646 size_t tlsext_ticklen; /* Session ticket length */
647 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
648 # ifndef OPENSSL_NO_SRP
655 /* Extended master secret support */
656 # define SSL_SESS_FLAG_EXTMS 0x1
659 # ifndef OPENSSL_NO_SRP
661 typedef struct srp_ctx_st {
662 /* param for all the callbacks */
664 /* set client Hello login callback */
665 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
666 /* set SRP N/g param callback for verification */
667 int (*SRP_verify_param_callback) (SSL *, void *);
668 /* set SRP client passwd callback */
669 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
671 BIGNUM *N, *g, *s, *B, *A;
675 unsigned long srp_Mask;
686 DEFINE_LHASH_OF(SSL_SESSION);
687 /* Needed in ssl_cert.c */
688 DEFINE_LHASH_OF(X509_NAME);
691 const SSL_METHOD *method;
692 STACK_OF(SSL_CIPHER) *cipher_list;
693 /* same as above but sorted for lookup */
694 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
695 struct x509_store_st /* X509_STORE */ *cert_store;
696 LHASH_OF(SSL_SESSION) *sessions;
698 * Most session-ids that will be cached, default is
699 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
701 unsigned long session_cache_size;
702 struct ssl_session_st *session_cache_head;
703 struct ssl_session_st *session_cache_tail;
705 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
706 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
707 * means only SSL_accept which cache SSL_SESSIONS.
709 uint32_t session_cache_mode;
711 * If timeout is not 0, it is the default timeout value set when
712 * SSL_new() is called. This has been put in to make life easier to set
715 long session_timeout;
717 * If this callback is not null, it will be called each time a session id
718 * is added to the cache. If this function returns 1, it means that the
719 * callback will do a SSL_SESSION_free() when it has finished using it.
720 * Otherwise, on 0, it means the callback has finished with it. If
721 * remove_session_cb is not null, it will be called when a session-id is
722 * removed from the cache. After the call, OpenSSL will
723 * SSL_SESSION_free() it.
725 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
726 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
727 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
728 const unsigned char *data, int len,
731 int sess_connect; /* SSL new conn - started */
732 int sess_connect_renegotiate; /* SSL reneg - requested */
733 int sess_connect_good; /* SSL new conne/reneg - finished */
734 int sess_accept; /* SSL new accept - started */
735 int sess_accept_renegotiate; /* SSL reneg - requested */
736 int sess_accept_good; /* SSL accept/reneg - finished */
737 int sess_miss; /* session lookup misses */
738 int sess_timeout; /* reuse attempt on timeouted session */
739 int sess_cache_full; /* session removed due to full cache */
740 int sess_hit; /* session reuse actually done */
741 int sess_cb_hit; /* session-id that was not in the cache was
742 * passed back via the callback. This
743 * indicates that the application is
744 * supplying session-id's from other
745 * processes - spooky :-) */
750 /* if defined, these override the X509_verify_cert() calls */
751 int (*app_verify_callback) (X509_STORE_CTX *, void *);
752 void *app_verify_arg;
754 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
755 * ('app_verify_callback' was called with just one argument)
758 /* Default password callback. */
759 pem_password_cb *default_passwd_callback;
761 /* Default password callback user data. */
762 void *default_passwd_callback_userdata;
764 /* get client cert callback */
765 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
767 /* cookie generate callback */
768 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
769 unsigned int *cookie_len);
771 /* verify cookie callback */
772 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
773 unsigned int cookie_len);
775 CRYPTO_EX_DATA ex_data;
777 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
778 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
780 STACK_OF(X509) *extra_certs;
781 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
783 /* Default values used when no per-SSL value is defined follow */
785 /* used if SSL's info_callback is NULL */
786 void (*info_callback) (const SSL *ssl, int type, int val);
788 /* what we put in client cert requests */
789 STACK_OF(X509_NAME) *client_CA;
792 * Default values to use in SSL structures follow (these are copied by
798 int min_proto_version;
799 int max_proto_version;
802 struct cert_st /* CERT */ *cert;
805 /* callback that allows applications to peek at protocol messages */
806 void (*msg_callback) (int write_p, int version, int content_type,
807 const void *buf, size_t len, SSL *ssl, void *arg);
808 void *msg_callback_arg;
810 uint32_t verify_mode;
811 unsigned int sid_ctx_length;
812 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
813 /* called 'verify_callback' in the SSL */
814 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
816 /* Default generate session ID callback. */
817 GEN_SESSION_CB generate_session_id;
819 X509_VERIFY_PARAM *param;
823 # ifndef OPENSSL_NO_CT
824 CTLOG_STORE *ctlog_store; /* CT Log Store */
826 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
827 * If they are not, the connection should be aborted.
829 ct_validation_cb ct_validation_callback;
830 void *ct_validation_callback_arg;
834 * If we're using more than one pipeline how should we divide the data
835 * up between the pipes?
837 unsigned int split_send_fragment;
839 * Maximum amount of data to send in one fragment. actual record size can
840 * be more than this due to padding and MAC overheads.
842 unsigned int max_send_fragment;
844 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
845 unsigned int max_pipelines;
847 /* The default read buffer length to use (0 means not set) */
848 size_t default_read_buf_len;
850 # ifndef OPENSSL_NO_ENGINE
852 * Engine to pass requests for client certs to
854 ENGINE *client_cert_engine;
857 /* TLS extensions servername callback */
858 int (*tlsext_servername_callback) (SSL *, int *, void *);
859 void *tlsext_servername_arg;
860 /* RFC 4507 session ticket keys */
861 unsigned char tlsext_tick_key_name[16];
862 unsigned char tlsext_tick_hmac_key[16];
863 unsigned char tlsext_tick_aes_key[16];
864 /* Callback to support customisation of ticket key setting */
865 int (*tlsext_ticket_key_cb) (SSL *ssl,
866 unsigned char *name, unsigned char *iv,
867 EVP_CIPHER_CTX *ectx,
868 HMAC_CTX *hctx, int enc);
870 /* certificate status request info */
871 /* Callback for status request */
872 int (*tlsext_status_cb) (SSL *ssl, void *arg);
873 void *tlsext_status_arg;
875 # ifndef OPENSSL_NO_PSK
876 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
878 unsigned int max_identity_len,
880 unsigned int max_psk_len);
881 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
883 unsigned int max_psk_len);
886 # ifndef OPENSSL_NO_SRP
887 SRP_CTX srp_ctx; /* ctx for SRP authentication */
890 # ifndef OPENSSL_NO_NEXTPROTONEG
891 /* Next protocol negotiation information */
894 * For a server, this contains a callback function by which the set of
895 * advertised protocols can be provided.
897 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
898 unsigned int *len, void *arg);
899 void *next_protos_advertised_cb_arg;
901 * For a client, this contains a callback function that selects the next
902 * protocol from the list provided by the server.
904 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
905 unsigned char *outlen,
906 const unsigned char *in,
907 unsigned int inlen, void *arg);
908 void *next_proto_select_cb_arg;
912 * ALPN information (we are in the process of transitioning from NPN to
917 * For a server, this contains a callback function that allows the
918 * server to select the protocol for the connection.
919 * out: on successful return, this must point to the raw protocol
920 * name (without the length prefix).
921 * outlen: on successful return, this contains the length of |*out|.
922 * in: points to the client's list of supported protocols in
924 * inlen: the length of |in|.
926 int (*alpn_select_cb) (SSL *s,
927 const unsigned char **out,
928 unsigned char *outlen,
929 const unsigned char *in,
930 unsigned int inlen, void *arg);
931 void *alpn_select_cb_arg;
934 * For a client, this contains the list of supported protocols in wire
937 unsigned char *alpn_client_proto_list;
938 unsigned alpn_client_proto_list_len;
940 /* Shared DANE context */
941 struct dane_ctx_st dane;
943 /* SRTP profiles we are willing to do from RFC 5764 */
944 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
946 * Callback for disabling session caching and ticket support on a session
947 * basis, depending on the chosen cipher.
949 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
950 # ifndef OPENSSL_NO_EC
951 /* EC extension values inherited by SSL structure */
952 size_t tlsext_ecpointformatlist_length;
953 unsigned char *tlsext_ecpointformatlist;
954 size_t tlsext_ellipticcurvelist_length;
955 unsigned char *tlsext_ellipticcurvelist;
956 # endif /* OPENSSL_NO_EC */
963 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
969 const SSL_METHOD *method;
971 * There are 2 BIO's even though they are normally both the same. This
972 * is so data can be read and written to different handlers
974 /* used by SSL_read */
976 /* used by SSL_write */
978 /* used during session-id reuse to concatenate messages */
981 * This holds a variable that indicates what we were doing when a 0 or -1
982 * is returned. This is needed for non-blocking IO so we know what
983 * request needs re-doing when in SSL_accept or SSL_connect
987 int (*handshake_func) (SSL *);
989 * Imagine that here's a boolean member "init" that is switched as soon
990 * as SSL_set_{accept/connect}_state is called for the first time, so
991 * that "state" and "handshake_func" are properly initialized. But as
992 * handshake_func is == 0 until then, we use this test instead of an
995 /* are we the server side? */
998 * Generate a new session or reuse an old one.
999 * NB: For servers, the 'new' session may actually be a previously
1000 * cached session or even the previous session unless
1001 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1004 /* don't send shutdown packets */
1006 /* we have shut things down, 0x01 sent, 0x02 for received */
1011 BUF_MEM *init_buf; /* buffer used during init */
1012 void *init_msg; /* pointer to handshake message body, set by
1013 * ssl3_get_message() */
1014 int init_num; /* amount read/written */
1015 int init_off; /* amount read/written */
1017 struct ssl3_state_st *s3; /* SSLv3 variables */
1018 struct dtls1_state_st *d1; /* DTLSv1 variables */
1020 /* callback that allows applications to peek at protocol messages */
1021 void (*msg_callback) (int write_p, int version, int content_type,
1022 const void *buf, size_t len, SSL *ssl, void *arg);
1023 void *msg_callback_arg;
1024 int hit; /* reusing a previous session */
1025 X509_VERIFY_PARAM *param;
1027 /* Per connection DANE state */
1028 struct dane_st dane;
1031 STACK_OF(SSL_CIPHER) *cipher_list;
1032 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1034 * These are the ones being used, the ones in SSL_SESSION are the ones to
1035 * be 'copied' into these ones
1038 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1039 EVP_MD_CTX *read_hash; /* used for mac generation */
1040 COMP_CTX *compress; /* compression */
1041 COMP_CTX *expand; /* uncompress */
1042 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1043 EVP_MD_CTX *write_hash; /* used for mac generation */
1046 /* This is used to hold the server certificate used */
1047 struct cert_st /* CERT */ *cert;
1049 * the session_id_context is used to ensure sessions are only reused in
1050 * the appropriate context
1052 unsigned int sid_ctx_length;
1053 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1054 /* This can also be in the session once a session is established */
1055 SSL_SESSION *session;
1056 /* Default generate session ID callback. */
1057 GEN_SESSION_CB generate_session_id;
1060 * 0 don't care about verify failure.
1061 * 1 fail if verify fails
1063 uint32_t verify_mode;
1064 /* fail if callback returns 0 */
1065 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1066 /* optional informational callback */
1067 void (*info_callback) (const SSL *ssl, int type, int val);
1068 /* error bytes to be written */
1072 # ifndef OPENSSL_NO_PSK
1073 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
1075 unsigned int max_identity_len,
1077 unsigned int max_psk_len);
1078 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
1080 unsigned int max_psk_len);
1083 /* Verified chain of peer */
1084 STACK_OF(X509) *verified_chain;
1086 /* 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 */
1095 int min_proto_version;
1096 int max_proto_version;
1099 /* what was passed, used for SSLv3/TLS rollback check */
1103 * If we're using more than one pipeline how should we divide the data
1104 * up between the pipes?
1106 unsigned int split_send_fragment;
1108 * Maximum amount of data to send in one fragment. actual record size can
1109 * be more than this due to padding and MAC overheads.
1111 unsigned int max_send_fragment;
1113 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1114 unsigned int max_pipelines;
1116 /* TLS extension debug callback */
1117 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1118 const unsigned char *data, int len, void *arg);
1119 void *tlsext_debug_arg;
1120 char *tlsext_hostname;
1122 * no further mod of servername
1123 * 0 : call the servername extension callback.
1124 * 1 : prepare 2, allow last ack just after in server callback.
1125 * 2 : don't call servername callback, no ack in server hello
1127 int servername_done;
1128 /* certificate status request info */
1129 /* Status type or -1 if no status type */
1130 int tlsext_status_type;
1131 # ifndef OPENSSL_NO_CT
1133 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1134 * If they are not, the connection should be aborted.
1136 ct_validation_cb ct_validation_callback;
1137 /* User-supplied argument tha tis passed to the ct_validation_callback */
1138 void *ct_validation_callback_arg;
1140 * Consolidated stack of SCTs from all sources.
1141 * Lazily populated by CT_get_peer_scts(SSL*)
1143 STACK_OF(SCT) *scts;
1144 /* Raw extension data, if seen */
1145 unsigned char *tlsext_scts;
1146 /* Length of raw extension data, if seen */
1147 uint16_t tlsext_scts_len;
1148 /* Have we attempted to find/parse SCTs yet? */
1151 /* Expect OCSP CertificateStatus message */
1152 int tlsext_status_expected;
1153 /* OCSP status request only */
1154 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1155 X509_EXTENSIONS *tlsext_ocsp_exts;
1156 /* OCSP response received or to be sent */
1157 unsigned char *tlsext_ocsp_resp;
1158 int tlsext_ocsp_resplen;
1159 /* RFC4507 session ticket expected to be received or sent */
1160 int tlsext_ticket_expected;
1161 # ifndef OPENSSL_NO_EC
1162 size_t tlsext_ecpointformatlist_length;
1164 unsigned char *tlsext_ecpointformatlist;
1165 size_t tlsext_ellipticcurvelist_length;
1167 unsigned char *tlsext_ellipticcurvelist;
1168 # endif /* OPENSSL_NO_EC */
1169 /* TLS Session Ticket extension override */
1170 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1171 /* TLS Session Ticket extension callback */
1172 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1173 void *tls_session_ticket_ext_cb_arg;
1174 /* TLS pre-shared secret session resumption */
1175 tls_session_secret_cb_fn tls_session_secret_cb;
1176 void *tls_session_secret_cb_arg;
1177 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1178 # ifndef OPENSSL_NO_NEXTPROTONEG
1180 * Next protocol negotiation. For the client, this is the protocol that
1181 * we sent in NextProtocol and is set when handling ServerHello
1182 * extensions. For a server, this is the client's selected_protocol from
1183 * NextProtocol and is set when handling the NextProtocol message, before
1184 * the Finished message.
1186 unsigned char *next_proto_negotiated;
1187 unsigned char next_proto_negotiated_len;
1189 # define session_ctx initial_ctx
1191 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1192 /* What's been chosen */
1193 SRTP_PROTECTION_PROFILE *srtp_profile;
1195 * Is use of the Heartbeat extension negotiated?
1198 * 2: enabled, but not allowed to send Requests
1200 unsigned int tlsext_heartbeat;
1201 /* Indicates if a HeartbeatRequest is in flight */
1202 unsigned int tlsext_hb_pending;
1203 /* HeartbeatRequest sequence number */
1204 unsigned int tlsext_hb_seq;
1206 * For a client, this contains the list of supported protocols in wire
1209 unsigned char *alpn_client_proto_list;
1210 unsigned alpn_client_proto_list_len;
1213 * 1 if we are renegotiating.
1214 * 2 if we are a server and are inside a handshake
1215 * (i.e. not just sending a HelloRequest)
1218 # ifndef OPENSSL_NO_SRP
1219 /* ctx for SRP authentication */
1223 * Callback for disabling session caching and ticket support on a session
1224 * basis, depending on the chosen cipher.
1226 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1228 RECORD_LAYER rlayer;
1230 /* Default password callback. */
1231 pem_password_cb *default_passwd_callback;
1233 /* Default password callback user data. */
1234 void *default_passwd_callback_userdata;
1236 /* Async Job info */
1238 ASYNC_WAIT_CTX *waitctx;
1240 CRYPTO_RWLOCK *lock;
1244 typedef struct ssl3_state_st {
1246 int read_mac_secret_size;
1247 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1248 int write_mac_secret_size;
1249 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1250 unsigned char server_random[SSL3_RANDOM_SIZE];
1251 unsigned char client_random[SSL3_RANDOM_SIZE];
1252 /* flags for countermeasure against known-IV weakness */
1253 int need_empty_fragments;
1254 int empty_fragment_done;
1255 /* used during startup, digest all incoming/outgoing packets */
1256 BIO *handshake_buffer;
1258 * When handshake digest is determined, buffer is hashed and
1259 * freed and MD_CTX for the required digest is stored here.
1261 EVP_MD_CTX *handshake_dgst;
1263 * Set whenever an expected ChangeCipherSpec message is processed.
1264 * Unset when the peer's Finished message is received.
1265 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1267 int change_cipher_spec;
1271 * we allow one fatal and one warning alert to be outstanding, send close
1272 * alert via the warning alert
1275 unsigned char send_alert[2];
1277 * This flag is set when we should renegotiate ASAP, basically when there
1278 * is no more data in the read or write buffers
1281 int total_renegotiations;
1282 int num_renegotiations;
1283 int in_read_app_data;
1285 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1286 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1288 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1289 int peer_finish_md_len;
1290 unsigned long message_size;
1292 /* used to hold the new cipher we are going to use */
1293 const SSL_CIPHER *new_cipher;
1294 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1295 EVP_PKEY *pkey; /* holds short lived DH/ECDH key */
1297 /* used for certificate requests */
1300 char ctype[SSL3_CT_NUMBER];
1301 STACK_OF(X509_NAME) *ca_names;
1302 int key_block_length;
1303 unsigned char *key_block;
1304 const EVP_CIPHER *new_sym_enc;
1305 const EVP_MD *new_hash;
1306 int new_mac_pkey_type;
1307 int new_mac_secret_size;
1308 # ifndef OPENSSL_NO_COMP
1309 const SSL_COMP *new_compression;
1311 char *new_compression;
1314 /* Raw values of the cipher list from a client */
1315 unsigned char *ciphers_raw;
1316 size_t ciphers_rawlen;
1317 /* Temporary storage for premaster secret */
1320 #ifndef OPENSSL_NO_PSK
1321 /* Temporary storage for PSK key */
1326 * signature algorithms peer reports: e.g. supported signature
1327 * algorithms extension for server or as part of a certificate
1328 * request for client.
1330 unsigned char *peer_sigalgs;
1331 /* Size of above array */
1332 size_t peer_sigalgslen;
1333 /* Digest peer uses for signing */
1334 const EVP_MD *peer_md;
1335 /* Array of digests used for signing */
1336 const EVP_MD *md[SSL_PKEY_NUM];
1338 * Set if corresponding CERT_PKEY can be used with current
1339 * SSL session: e.g. appropriate curve, signature algorithms etc.
1340 * If zero it can't be used at all.
1342 uint32_t valid_flags[SSL_PKEY_NUM];
1344 * For servers the following masks are for the key and auth algorithms
1345 * that are supported by the certs below. For clients they are masks of
1346 * *disabled* algorithms based on the current session.
1354 /* Connection binding to prevent renegotiation attacks */
1355 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1356 unsigned char previous_client_finished_len;
1357 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1358 unsigned char previous_server_finished_len;
1359 int send_connection_binding; /* TODOEKR */
1361 # ifndef OPENSSL_NO_NEXTPROTONEG
1363 * Set if we saw the Next Protocol Negotiation extension from our peer.
1365 int next_proto_neg_seen;
1369 * ALPN information (we are in the process of transitioning from NPN to
1374 * In a server these point to the selected ALPN protocol after the
1375 * ClientHello has been processed. In a client these contain the protocol
1376 * that the server selected once the ServerHello has been processed.
1378 unsigned char *alpn_selected;
1379 size_t alpn_selected_len;
1380 /* used by the server to know what options were proposed */
1381 unsigned char *alpn_proposed;
1382 size_t alpn_proposed_len;
1383 /* used by the client to know if it actually sent alpn */
1386 # ifndef OPENSSL_NO_EC
1388 * This is set to true if we believe that this is a version of Safari
1389 * running on OS X 10.6 or newer. We wish to know this because Safari on
1390 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1392 char is_probably_safari;
1393 # endif /* !OPENSSL_NO_EC */
1395 /* For clients: peer temporary key */
1396 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1403 /* DTLS structures */
1405 # ifndef OPENSSL_NO_SCTP
1406 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1409 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1410 # define DTLS1_MAX_MTU_OVERHEAD 48
1413 * Flag used in message reuse to indicate the buffer contains the record
1414 * header as well as the the handshake message header.
1416 # define DTLS1_SKIP_RECORD_HEADER 2
1418 struct dtls1_retransmit_state {
1419 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1420 EVP_MD_CTX *write_hash; /* used for mac generation */
1421 COMP_CTX *compress; /* compression */
1422 SSL_SESSION *session;
1423 unsigned short epoch;
1426 struct hm_header_st {
1428 unsigned long msg_len;
1430 unsigned long frag_off;
1431 unsigned long frag_len;
1432 unsigned int is_ccs;
1433 struct dtls1_retransmit_state saved_retransmit_state;
1436 struct dtls1_timeout_st {
1437 /* Number of read timeouts so far */
1438 unsigned int read_timeouts;
1439 /* Number of write timeouts so far */
1440 unsigned int write_timeouts;
1441 /* Number of alerts received so far */
1442 unsigned int num_alerts;
1445 typedef struct hm_fragment_st {
1446 struct hm_header_st msg_header;
1447 unsigned char *fragment;
1448 unsigned char *reassembly;
1451 typedef struct pqueue_st pqueue;
1452 typedef struct pitem_st pitem;
1455 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1460 typedef struct pitem_st *piterator;
1462 pitem *pitem_new(unsigned char *prio64be, void *data);
1463 void pitem_free(pitem *item);
1464 pqueue* pqueue_new(void);
1465 void pqueue_free(pqueue *pq);
1466 pitem *pqueue_insert(pqueue *pq, pitem *item);
1467 pitem *pqueue_peek(pqueue *pq);
1468 pitem *pqueue_pop(pqueue *pq);
1469 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1470 pitem *pqueue_iterator(pqueue *pq);
1471 pitem *pqueue_next(piterator *iter);
1472 void pqueue_print(pqueue *pq);
1473 int pqueue_size(pqueue *pq);
1475 typedef struct dtls1_state_st {
1476 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1477 unsigned int cookie_len;
1478 unsigned int cookie_verified;
1480 /* handshake message numbers */
1481 unsigned short handshake_write_seq;
1482 unsigned short next_handshake_write_seq;
1483 unsigned short handshake_read_seq;
1485 /* Buffered handshake messages */
1486 pqueue *buffered_messages;
1487 /* Buffered (sent) handshake records */
1488 pqueue *sent_messages;
1490 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1491 unsigned int mtu; /* max DTLS packet size */
1492 struct hm_header_st w_msg_hdr;
1493 struct hm_header_st r_msg_hdr;
1494 struct dtls1_timeout_st timeout;
1496 * Indicates when the last handshake msg or heartbeat sent will timeout
1498 struct timeval next_timeout;
1499 /* Timeout duration */
1500 unsigned short timeout_duration;
1502 unsigned int retransmitting;
1503 # ifndef OPENSSL_NO_SCTP
1504 int shutdown_received;
1510 # ifndef OPENSSL_NO_EC
1512 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1514 # define EXPLICIT_PRIME_CURVE_TYPE 1
1515 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1516 # define NAMED_CURVE_TYPE 3
1517 # endif /* OPENSSL_NO_EC */
1519 typedef struct cert_pkey_st {
1521 EVP_PKEY *privatekey;
1522 /* Chain for this certificate */
1523 STACK_OF(X509) *chain;
1526 * serverinfo data for this certificate. The data is in TLS Extension
1527 * wire format, specifically it's a series of records like:
1528 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1530 * uint8_t data[length];
1532 unsigned char *serverinfo;
1533 size_t serverinfo_length;
1535 /* Retrieve Suite B flags */
1536 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1537 /* Uses to check strict mode: suite B modes are always strict */
1538 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1539 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1542 unsigned short ext_type;
1544 * Per-connection flags relating to this extension type: not used if
1545 * part of an SSL_CTX structure.
1548 custom_ext_add_cb add_cb;
1549 custom_ext_free_cb free_cb;
1551 custom_ext_parse_cb parse_cb;
1553 } custom_ext_method;
1555 /* ext_flags values */
1558 * Indicates an extension has been received. Used to check for unsolicited or
1559 * duplicate extensions.
1561 # define SSL_EXT_FLAG_RECEIVED 0x1
1563 * Indicates an extension has been sent: used to enable sending of
1564 * corresponding ServerHello extension.
1566 # define SSL_EXT_FLAG_SENT 0x2
1569 custom_ext_method *meths;
1571 } custom_ext_methods;
1573 typedef struct cert_st {
1574 /* Current active set */
1576 * ALWAYS points to an element of the pkeys array
1577 * Probably it would make more sense to store
1578 * an index, not a pointer.
1581 # ifndef OPENSSL_NO_DH
1583 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1586 /* Flags related to certificates */
1587 uint32_t cert_flags;
1588 CERT_PKEY pkeys[SSL_PKEY_NUM];
1590 * Certificate types (received or sent) in certificate request message.
1591 * On receive this is only set if number of certificate types exceeds
1594 unsigned char *ctypes;
1597 * suppported signature algorithms. When set on a client this is sent in
1598 * the client hello as the supported signature algorithms extension. For
1599 * servers it represents the signature algorithms we are willing to use.
1601 unsigned char *conf_sigalgs;
1602 /* Size of above array */
1603 size_t conf_sigalgslen;
1605 * Client authentication signature algorithms, if not set then uses
1606 * conf_sigalgs. On servers these will be the signature algorithms sent
1607 * to the client in a cerificate request for TLS 1.2. On a client this
1608 * represents the signature algortithms we are willing to use for client
1611 unsigned char *client_sigalgs;
1612 /* Size of above array */
1613 size_t client_sigalgslen;
1615 * Signature algorithms shared by client and server: cached because these
1616 * are used most often.
1618 TLS_SIGALGS *shared_sigalgs;
1619 size_t shared_sigalgslen;
1621 * Certificate setup callback: if set is called whenever a certificate
1622 * may be required (client or server). the callback can then examine any
1623 * appropriate parameters and setup any certificates required. This
1624 * allows advanced applications to select certificates on the fly: for
1625 * example based on supported signature algorithms or curves.
1627 int (*cert_cb) (SSL *ssl, void *arg);
1630 * Optional X509_STORE for chain building or certificate validation If
1631 * NULL the parent SSL_CTX store is used instead.
1633 X509_STORE *chain_store;
1634 X509_STORE *verify_store;
1635 /* Custom extension methods for server and client */
1636 custom_ext_methods cli_ext;
1637 custom_ext_methods srv_ext;
1638 /* Security callback */
1639 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1640 void *other, void *ex);
1641 /* Security level */
1644 #ifndef OPENSSL_NO_PSK
1645 /* If not NULL psk identity hint to use for servers */
1646 char *psk_identity_hint;
1648 int references; /* >1 only if SSL_copy_session_id is used */
1649 CRYPTO_RWLOCK *lock;
1652 /* Structure containing decoded values of signature algorithms extension */
1653 struct tls_sigalgs_st {
1654 /* NID of hash algorithm */
1656 /* NID of signature algorithm */
1658 /* Combined hash and signature NID */
1659 int signandhash_nid;
1660 /* Raw values used in extension */
1661 unsigned char rsign;
1662 unsigned char rhash;
1665 # define FP_ICC (int (*)(const void *,const void *))
1668 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1669 * of a mess of functions, but hell, think of it as an opaque structure :-)
1671 typedef struct ssl3_enc_method {
1672 int (*enc) (SSL *, SSL3_RECORD *, unsigned int, int);
1673 int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int);
1674 int (*setup_key_block) (SSL *);
1675 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1677 int (*change_cipher_state) (SSL *, int);
1678 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1679 int finish_mac_length;
1680 const char *client_finished_label;
1681 int client_finished_label_len;
1682 const char *server_finished_label;
1683 int server_finished_label_len;
1684 int (*alert_value) (int);
1685 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1686 const char *, size_t,
1687 const unsigned char *, size_t,
1689 /* Various flags indicating protocol version requirements */
1691 /* Handshake header length */
1693 /* Set the handshake header */
1694 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1695 /* Write out handshake message */
1696 int (*do_write) (SSL *s);
1699 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1700 # define ssl_handshake_start(s) \
1701 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1702 # define ssl_set_handshake_header(s, htype, len) \
1703 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1704 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1706 /* Values for enc_flags */
1708 /* Uses explicit IV for CBC mode */
1709 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1710 /* Uses signature algorithms extension */
1711 # define SSL_ENC_FLAG_SIGALGS 0x2
1712 /* Uses SHA256 default PRF */
1713 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1715 # define SSL_ENC_FLAG_DTLS 0x8
1717 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1718 * apply to others in future.
1720 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1722 # ifndef OPENSSL_NO_COMP
1723 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1724 typedef struct ssl3_comp_st {
1725 int comp_id; /* The identifier byte for this compression
1727 char *name; /* Text name used for the compression type */
1728 COMP_METHOD *method; /* The method :-) */
1732 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1734 SSL_METHOD *ssl_bad_method(int ver);
1736 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1737 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1738 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1739 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1740 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1741 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1744 * Flags for SSL methods
1746 #define SSL_METHOD_NO_FIPS (1U<<0)
1747 #define SSL_METHOD_NO_SUITEB (1U<<1)
1749 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1750 s_connect, s_get_meth, enc_data) \
1751 const SSL_METHOD *func_name(void) \
1753 static const SSL_METHOD func_name##_data= { \
1767 ssl3_renegotiate_check, \
1770 ssl3_dispatch_alert, \
1773 ssl3_get_cipher_by_char, \
1774 ssl3_put_cipher_by_char, \
1779 tls1_default_timeout, \
1781 ssl_undefined_void_function, \
1782 ssl3_callback_ctrl, \
1783 ssl3_ctx_callback_ctrl, \
1785 return &func_name##_data; \
1788 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
1789 const SSL_METHOD *func_name(void) \
1791 static const SSL_METHOD func_name##_data= { \
1793 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1805 ssl3_renegotiate_check, \
1808 ssl3_dispatch_alert, \
1811 ssl3_get_cipher_by_char, \
1812 ssl3_put_cipher_by_char, \
1817 ssl3_default_timeout, \
1819 ssl_undefined_void_function, \
1820 ssl3_callback_ctrl, \
1821 ssl3_ctx_callback_ctrl, \
1823 return &func_name##_data; \
1826 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
1827 s_connect, s_get_meth, enc_data) \
1828 const SSL_METHOD *func_name(void) \
1830 static const SSL_METHOD func_name##_data= { \
1844 ssl3_renegotiate_check, \
1846 dtls1_write_app_data_bytes, \
1847 dtls1_dispatch_alert, \
1850 ssl3_get_cipher_by_char, \
1851 ssl3_put_cipher_by_char, \
1856 dtls1_default_timeout, \
1858 ssl_undefined_void_function, \
1859 ssl3_callback_ctrl, \
1860 ssl3_ctx_callback_ctrl, \
1862 return &func_name##_data; \
1865 struct openssl_ssl_test_functions {
1866 int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
1867 int (*p_ssl3_setup_buffers) (SSL *s);
1868 # ifndef OPENSSL_NO_HEARTBEATS
1869 int (*p_dtls1_process_heartbeat) (SSL *s,
1870 unsigned char *p, unsigned int length);
1874 # ifndef OPENSSL_UNIT_TEST
1876 void ssl_clear_cipher_ctx(SSL *s);
1877 int ssl_clear_bad_session(SSL *s);
1878 __owur CERT *ssl_cert_new(void);
1879 __owur CERT *ssl_cert_dup(CERT *cert);
1880 void ssl_cert_clear_certs(CERT *c);
1881 void ssl_cert_free(CERT *c);
1882 __owur int ssl_get_new_session(SSL *s, int session);
1883 __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
1884 const PACKET *session_id);
1885 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1886 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1887 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1888 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1889 const SSL_CIPHER *const *bp);
1890 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1891 STACK_OF(SSL_CIPHER) **pref,
1892 STACK_OF(SSL_CIPHER) **sorted,
1893 const char *rule_str, CERT *c);
1894 void ssl_update_cache(SSL *s, int mode);
1895 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1896 const EVP_MD **md, int *mac_pkey_type,
1897 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1898 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1899 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1900 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1901 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1902 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1903 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1904 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1905 __owur int ssl_cert_set_current(CERT *c, long arg);
1906 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1907 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1910 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1911 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1912 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1913 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1915 __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other);
1916 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other);
1918 int ssl_undefined_function(SSL *s);
1919 __owur int ssl_undefined_void_function(void);
1920 __owur int ssl_undefined_const_function(const SSL *s);
1921 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1922 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1923 size_t *serverinfo_length);
1924 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1925 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1926 void ssl_set_masks(SSL *s);
1927 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1928 __owur int ssl_verify_alarm_type(long type);
1929 void ssl_load_ciphers(void);
1930 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1931 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1933 __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm, int nid);
1934 __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey);
1935 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
1937 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1938 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1939 void ssl3_init_finished_mac(SSL *s);
1940 __owur int ssl3_setup_key_block(SSL *s);
1941 __owur int ssl3_change_cipher_state(SSL *s, int which);
1942 void ssl3_cleanup_key_block(SSL *s);
1943 __owur int ssl3_do_write(SSL *s, int type);
1944 int ssl3_send_alert(SSL *s, int level, int desc);
1945 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1946 unsigned char *p, int len);
1947 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1948 __owur int ssl3_num_ciphers(void);
1949 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1950 int ssl3_renegotiate(SSL *ssl);
1951 int ssl3_renegotiate_check(SSL *ssl);
1952 __owur int ssl3_dispatch_alert(SSL *s);
1953 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1955 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1956 void ssl3_free_digest_list(SSL *s);
1957 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1958 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
1959 STACK_OF(SSL_CIPHER) *clnt,
1960 STACK_OF(SSL_CIPHER) *srvr);
1961 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1962 __owur int ssl3_new(SSL *s);
1963 void ssl3_free(SSL *s);
1964 __owur int ssl3_read(SSL *s, void *buf, int len);
1965 __owur int ssl3_peek(SSL *s, void *buf, int len);
1966 __owur int ssl3_write(SSL *s, const void *buf, int len);
1967 __owur int ssl3_shutdown(SSL *s);
1968 void ssl3_clear(SSL *s);
1969 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1970 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1971 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1972 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1974 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1975 __owur long ssl3_default_timeout(void);
1977 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1978 __owur int ssl3_handshake_write(SSL *s);
1980 __owur int ssl_allow_compression(SSL *s);
1982 __owur int ssl_set_client_hello_version(SSL *s);
1983 __owur int ssl_check_version_downgrade(SSL *s);
1984 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
1985 __owur int ssl_choose_server_version(SSL *s);
1986 __owur int ssl_choose_client_version(SSL *s, int version);
1988 __owur long tls1_default_timeout(void);
1989 __owur int dtls1_do_write(SSL *s, int type);
1990 void dtls1_set_message_header(SSL *s,
1993 unsigned long frag_off,
1994 unsigned long frag_len);
1996 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1998 __owur int dtls1_read_failed(SSL *s, int code);
1999 __owur int dtls1_buffer_message(SSL *s, int ccs);
2000 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found);
2001 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
2002 int dtls1_retransmit_buffered_messages(SSL *s);
2003 void dtls1_clear_record_buffer(SSL *s);
2004 void dtls1_get_message_header(unsigned char *data,
2005 struct hm_header_st *msg_hdr);
2006 __owur long dtls1_default_timeout(void);
2007 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
2008 __owur int dtls1_check_timeout_num(SSL *s);
2009 __owur int dtls1_handle_timeout(SSL *s);
2010 __owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
2011 void dtls1_start_timer(SSL *s);
2012 void dtls1_stop_timer(SSL *s);
2013 __owur int dtls1_is_timer_expired(SSL *s);
2014 void dtls1_double_timeout(SSL *s);
2015 __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
2016 unsigned char *cookie,
2017 unsigned char cookie_len);
2018 __owur int dtls1_send_newsession_ticket(SSL *s);
2019 __owur unsigned int dtls1_min_mtu(SSL *s);
2020 void dtls1_hm_fragment_free(hm_fragment *frag);
2021 __owur int dtls1_query_mtu(SSL *s);
2023 __owur int tls1_new(SSL *s);
2024 void tls1_free(SSL *s);
2025 void tls1_clear(SSL *s);
2026 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2027 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2029 __owur int dtls1_new(SSL *s);
2030 void dtls1_free(SSL *s);
2031 void dtls1_clear(SSL *s);
2032 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2033 __owur int dtls1_shutdown(SSL *s);
2035 __owur int dtls1_dispatch_alert(SSL *s);
2037 __owur int ssl_init_wbio_buffer(SSL *s, int push);
2038 void ssl_free_wbio_buffer(SSL *s);
2040 __owur int tls1_change_cipher_state(SSL *s, int which);
2041 __owur int tls1_setup_key_block(SSL *s);
2042 __owur int tls1_final_finish_mac(SSL *s,
2043 const char *str, int slen, unsigned char *p);
2044 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
2045 unsigned char *p, int len);
2046 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2047 const char *label, size_t llen,
2048 const unsigned char *p, size_t plen,
2050 __owur int tls1_alert_code(int code);
2051 __owur int ssl3_alert_code(int code);
2052 __owur int ssl_ok(SSL *s);
2054 # ifndef OPENSSL_NO_EC
2055 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
2058 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2060 # ifndef OPENSSL_NO_EC
2061 __owur int tls1_ec_curve_id2nid(int curve_id);
2062 __owur int tls1_ec_nid2curve_id(int nid);
2063 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
2064 __owur int tls1_shared_curve(SSL *s, int nmatch);
2065 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
2066 int *curves, size_t ncurves);
2067 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
2069 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
2070 # endif /* OPENSSL_NO_EC */
2072 __owur int tls1_shared_list(SSL *s,
2073 const unsigned char *l1, size_t l1len,
2074 const unsigned char *l2, size_t l2len, int nmatch);
2075 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
2076 unsigned char *limit, int *al);
2077 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
2078 unsigned char *limit, int *al);
2079 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2080 void ssl_set_default_md(SSL *s);
2081 __owur int tls1_set_server_sigalgs(SSL *s);
2082 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2083 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2084 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2085 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2087 # ifndef OPENSSL_NO_HEARTBEATS
2088 __owur int dtls1_heartbeat(SSL *s);
2089 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2092 __owur int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
2093 const PACKET *session_id,
2096 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2098 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2099 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2100 void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
2102 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2103 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2104 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2106 void tls1_set_cert_validity(SSL *s);
2108 #ifndef OPENSSL_NO_CT
2109 __owur int ssl_validate_ct(SSL *s);
2112 # ifndef OPENSSL_NO_DH
2113 __owur DH *ssl_get_auto_dh(SSL *s);
2116 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2117 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2119 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2120 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2121 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2123 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2125 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2127 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2128 __owur long ssl_get_algorithm2(SSL *s);
2129 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2130 const unsigned char *psig, size_t psiglen);
2131 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2132 __owur int tls1_process_sigalgs(SSL *s);
2133 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2134 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2135 const unsigned char *sig, EVP_PKEY *pkey);
2136 void ssl_set_client_disabled(SSL *s);
2137 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2139 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2141 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2142 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2144 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2146 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2147 __owur const EVP_MD *ssl_md(int idx);
2148 __owur const EVP_MD *ssl_handshake_md(SSL *s);
2149 __owur const EVP_MD *ssl_prf_md(SSL *s);
2152 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2153 __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2154 unsigned char *md_out,
2155 size_t *md_out_size,
2156 const unsigned char header[13],
2157 const unsigned char *data,
2158 size_t data_plus_mac_size,
2159 size_t data_plus_mac_plus_padding_size,
2160 const unsigned char *mac_secret,
2161 unsigned mac_secret_length, char is_sslv3);
2163 void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2164 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2165 size_t data_len, size_t orig_len);
2167 __owur int srp_generate_server_master_secret(SSL *s);
2168 __owur int srp_generate_client_master_secret(SSL *s);
2169 __owur int srp_verify_server_param(SSL *s, int *al);
2173 void custom_ext_init(custom_ext_methods *meths);
2175 __owur int custom_ext_parse(SSL *s, int server,
2176 unsigned int ext_type,
2177 const unsigned char *ext_data, size_t ext_size, int *al);
2178 __owur int custom_ext_add(SSL *s, int server,
2179 unsigned char **pret, unsigned char *limit, int *al);
2181 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2182 void custom_exts_free(custom_ext_methods *exts);
2186 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2187 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2188 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat