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>
168 #include "record/record.h"
169 #include "statem/statem.h"
170 #include "packet_locl.h"
171 #include "internal/dane.h"
173 # ifdef OPENSSL_BUILD_SHLIBSSL
174 # undef OPENSSL_EXTERN
175 # define OPENSSL_EXTERN OPENSSL_EXPORT
180 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
181 l|=(((unsigned long)(*((c)++)))<< 8), \
182 l|=(((unsigned long)(*((c)++)))<<16), \
183 l|=(((unsigned long)(*((c)++)))<<24))
185 /* NOTE - c is not incremented as per c2l */
186 # define c2ln(c,l1,l2,n) { \
190 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
191 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
192 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
193 case 5: l2|=((unsigned long)(*(--(c)))); \
194 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
195 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
196 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
197 case 1: l1|=((unsigned long)(*(--(c)))); \
201 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
202 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
203 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
204 *((c)++)=(unsigned char)(((l)>>24)&0xff))
206 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
207 l|=((unsigned long)(*((c)++)))<<16, \
208 l|=((unsigned long)(*((c)++)))<< 8, \
209 l|=((unsigned long)(*((c)++))))
211 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
212 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
213 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
214 *((c)++)=(unsigned char)(((l) )&0xff))
216 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
217 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
218 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
219 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
220 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
221 *((c)++)=(unsigned char)(((l) )&0xff))
223 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
224 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
225 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
226 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
227 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
228 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
229 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
230 *((c)++)=(unsigned char)(((l) )&0xff))
232 /* NOTE - c is not incremented as per l2c */
233 # define l2cn(l1,l2,c,n) { \
236 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
237 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
238 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
239 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
240 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
241 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
242 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
243 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
247 # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
248 (((unsigned int)(c[1])) )),c+=2)
249 # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
250 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
252 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
253 (((unsigned long)(c[1]))<< 8)| \
254 (((unsigned long)(c[2])) )),c+=3)
256 # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
257 c[1]=(unsigned char)(((l)>> 8)&0xff), \
258 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
260 #define DTLS_VERSION_GT(v1, v2) ((v1) < (v2))
261 #define DTLS_VERSION_GE(v1, v2) ((v1) <= (v2))
262 #define DTLS_VERSION_LT(v1, v2) ((v1) > (v2))
263 #define DTLS_VERSION_LE(v1, v2) ((v1) >= (v2))
267 # define SSL_DECRYPT 0
268 # define SSL_ENCRYPT 1
270 # define TWO_BYTE_BIT 0x80
271 # define SEC_ESC_BIT 0x40
272 # define TWO_BYTE_MASK 0x7fff
273 # define THREE_BYTE_MASK 0x3fff
275 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
276 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
277 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
280 * Define the Bitmasks for SSL_CIPHER.algorithms.
281 * This bits are used packed as dense as possible. If new methods/ciphers
282 * etc will be added, the bits a likely to change, so this information
283 * is for internal library use only, even though SSL_CIPHER.algorithms
284 * can be publicly accessed.
285 * Use the according functions for cipher management instead.
287 * The bit mask handling in the selection and sorting scheme in
288 * ssl_create_cipher_list() has only limited capabilities, reflecting
289 * that the different entities within are mutually exclusive:
290 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
293 /* Bits for algorithm_mkey (key exchange algorithm) */
294 /* RSA key exchange */
295 # define SSL_kRSA 0x00000001U
296 /* tmp DH key no DH cert */
297 # define SSL_kDHE 0x00000002U
299 # define SSL_kEDH SSL_kDHE
300 /* ECDH cert, RSA CA cert */
301 # define SSL_kECDHr 0x00000004U
302 /* ECDH cert, ECDSA CA cert */
303 # define SSL_kECDHe 0x00000008U
305 # define SSL_kECDHE 0x00000010U
307 # define SSL_kEECDH SSL_kECDHE
309 # define SSL_kPSK 0x00000020U
310 /* GOST key exchange */
311 # define SSL_kGOST 0x00000040U
313 # define SSL_kSRP 0x00000080U
315 # define SSL_kRSAPSK 0x00000100U
316 # define SSL_kECDHEPSK 0x00000200U
317 # define SSL_kDHEPSK 0x00000400U
321 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
323 /* Bits for algorithm_auth (server authentication) */
325 # define SSL_aRSA 0x00000001U
327 # define SSL_aDSS 0x00000002U
328 /* no auth (i.e. use ADH or AECDH) */
329 # define SSL_aNULL 0x00000004U
330 /* Fixed ECDH auth (kECDHe or kECDHr) */
331 # define SSL_aECDH 0x00000008U
333 # define SSL_aECDSA 0x00000010U
335 # define SSL_aPSK 0x00000020U
336 /* GOST R 34.10-2001 signature auth */
337 # define SSL_aGOST01 0x00000040U
339 # define SSL_aSRP 0x00000080U
340 /* GOST R 34.10-2012 signature auth */
341 # define SSL_aGOST12 0x00000100U
343 /* Bits for algorithm_enc (symmetric encryption) */
344 # define SSL_DES 0x00000001U
345 # define SSL_3DES 0x00000002U
346 # define SSL_RC4 0x00000004U
347 # define SSL_RC2 0x00000008U
348 # define SSL_IDEA 0x00000010U
349 # define SSL_eNULL 0x00000020U
350 # define SSL_AES128 0x00000040U
351 # define SSL_AES256 0x00000080U
352 # define SSL_CAMELLIA128 0x00000100U
353 # define SSL_CAMELLIA256 0x00000200U
354 # define SSL_eGOST2814789CNT 0x00000400U
355 # define SSL_SEED 0x00000800U
356 # define SSL_AES128GCM 0x00001000U
357 # define SSL_AES256GCM 0x00002000U
358 # define SSL_AES128CCM 0x00004000U
359 # define SSL_AES256CCM 0x00008000U
360 # define SSL_AES128CCM8 0x00010000U
361 # define SSL_AES256CCM8 0x00020000U
362 # define SSL_eGOST2814789CNT12 0x00040000U
363 # define SSL_CHACHA20POLY1305 0x00080000U
365 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM|SSL_AES128CCM|SSL_AES256CCM|SSL_AES128CCM8|SSL_AES256CCM8)
366 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
367 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
369 /* Bits for algorithm_mac (symmetric authentication) */
371 # define SSL_MD5 0x00000001U
372 # define SSL_SHA1 0x00000002U
373 # define SSL_GOST94 0x00000004U
374 # define SSL_GOST89MAC 0x00000008U
375 # define SSL_SHA256 0x00000010U
376 # define SSL_SHA384 0x00000020U
377 /* Not a real MAC, just an indication it is part of cipher */
378 # define SSL_AEAD 0x00000040U
379 # define SSL_GOST12_256 0x00000080U
380 # define SSL_GOST89MAC12 0x00000100U
381 # define SSL_GOST12_512 0x00000200U
383 /* Bits for algorithm_ssl (protocol version) */
384 # define SSL_SSLV3 0x00000002U
385 # define SSL_TLSV1 0x00000004U
386 # define SSL_TLSV1_2 0x00000008U
389 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
390 * sure to update this constant too
393 # define SSL_MD_MD5_IDX 0
394 # define SSL_MD_SHA1_IDX 1
395 # define SSL_MD_GOST94_IDX 2
396 # define SSL_MD_GOST89MAC_IDX 3
397 # define SSL_MD_SHA256_IDX 4
398 # define SSL_MD_SHA384_IDX 5
399 # define SSL_MD_GOST12_256_IDX 6
400 # define SSL_MD_GOST89MAC12_IDX 7
401 # define SSL_MD_GOST12_512_IDX 8
402 # define SSL_MD_MD5_SHA1_IDX 9
403 # define SSL_MD_SHA224_IDX 10
404 # define SSL_MD_SHA512_IDX 11
405 # define SSL_MAX_DIGEST 12
407 /* Bits for algorithm2 (handshake digests and other extra flags) */
409 /* Bits 0-7 are handshake MAC */
410 # define SSL_HANDSHAKE_MAC_MASK 0xFF
411 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
412 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
413 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
414 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
415 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
416 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
417 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
419 /* Bits 8-15 bits are PRF */
420 # define TLS1_PRF_DGST_SHIFT 8
421 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
422 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
423 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
424 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
425 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
426 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
427 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
430 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
431 * goes into algorithm2)
433 # define TLS1_STREAM_MAC 0x10000
435 # define SSL_DEFAULT_MASK 0X00000020U
437 # define SSL_STRONG_NONE 0x00000001U
438 # define SSL_LOW 0x00000002U
439 # define SSL_MEDIUM 0x00000004U
440 # define SSL_HIGH 0x00000008U
441 # define SSL_FIPS 0x00000010U
442 # define SSL_NOT_DEFAULT 0x00000020U
444 /* we have used 0000003f - 26 bits left to go */
446 /* Check if an SSL structure is using DTLS */
447 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
448 /* See if we need explicit IV */
449 # define SSL_USE_EXPLICIT_IV(s) \
450 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
452 * See if we use signature algorithms extension and signature algorithm
455 # define SSL_USE_SIGALGS(s) \
456 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
458 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
459 * apply to others in future.
461 # define SSL_USE_TLS1_2_CIPHERS(s) \
462 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
464 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
465 * flags because it may not be set to correct version yet.
467 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
468 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
469 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
471 # ifdef TLSEXT_TYPE_encrypt_then_mac
472 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
474 # define SSL_USE_ETM(s) (0)
477 /* Mostly for SSLv3 */
478 # define SSL_PKEY_RSA_ENC 0
479 # define SSL_PKEY_RSA_SIGN 1
480 # define SSL_PKEY_DSA_SIGN 2
481 # define SSL_PKEY_ECC 3
482 # define SSL_PKEY_GOST01 4
483 # define SSL_PKEY_GOST12_256 5
484 # define SSL_PKEY_GOST12_512 6
485 # define SSL_PKEY_NUM 7
487 * Pseudo-constant. GOST cipher suites can use different certs for 1
488 * SSL_CIPHER. So let's see which one we have in fact.
490 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
493 * SSL_kRSA <- RSA_ENC
494 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
495 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
496 * SSL_aRSA <- RSA_ENC | RSA_SIGN
497 * SSL_aDSS <- DSA_SIGN
501 #define CERT_INVALID 0
502 #define CERT_PUBLIC_KEY 1
503 #define CERT_PRIVATE_KEY 2
507 /* CipherSuite length. SSLv3 and all TLS versions. */
508 #define TLS_CIPHER_LEN 2
509 /* used to hold info on the particular ciphers used */
510 struct ssl_cipher_st {
512 const char *name; /* text name */
513 uint32_t id; /* id, 4 bytes, first is version */
515 * changed in 1.0.0: these four used to be portions of a single value
518 uint32_t algorithm_mkey; /* key exchange algorithm */
519 uint32_t algorithm_auth; /* server authentication */
520 uint32_t algorithm_enc; /* symmetric encryption */
521 uint32_t algorithm_mac; /* symmetric authentication */
522 uint32_t algorithm_ssl; /* (major) protocol version */
523 uint32_t algo_strength; /* strength and export flags */
524 uint32_t algorithm2; /* Extra flags */
525 int32_t strength_bits; /* Number of bits really used */
526 uint32_t alg_bits; /* Number of bits for algorithm */
529 /* Used to hold SSL/TLS functions */
530 struct ssl_method_st {
534 int (*ssl_new) (SSL *s);
535 void (*ssl_clear) (SSL *s);
536 void (*ssl_free) (SSL *s);
537 int (*ssl_accept) (SSL *s);
538 int (*ssl_connect) (SSL *s);
539 int (*ssl_read) (SSL *s, void *buf, int len);
540 int (*ssl_peek) (SSL *s, void *buf, int len);
541 int (*ssl_write) (SSL *s, const void *buf, int len);
542 int (*ssl_shutdown) (SSL *s);
543 int (*ssl_renegotiate) (SSL *s);
544 int (*ssl_renegotiate_check) (SSL *s);
545 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
546 unsigned char *buf, int len, int peek);
547 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
548 int (*ssl_dispatch_alert) (SSL *s);
549 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
550 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
551 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
552 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
553 int (*ssl_pending) (const SSL *s);
554 int (*num_ciphers) (void);
555 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
556 const struct ssl_method_st *(*get_ssl_method) (int version);
557 long (*get_timeout) (void);
558 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
559 int (*ssl_version) (void);
560 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
561 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
565 * Lets make this into an ASN.1 type structure as follows
566 * SSL_SESSION_ID ::= SEQUENCE {
567 * version INTEGER, -- structure version number
568 * SSLversion INTEGER, -- SSL version number
569 * Cipher OCTET STRING, -- the 3 byte cipher ID
570 * Session_ID OCTET STRING, -- the Session ID
571 * Master_key OCTET STRING, -- the master key
572 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
573 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
574 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
575 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
576 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
577 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
578 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
579 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
580 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
581 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
582 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
583 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
584 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
585 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
587 * Look in ssl/ssl_asn1.c for more details
588 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
590 struct ssl_session_st {
591 int ssl_version; /* what ssl version session info is being
593 int master_key_length;
594 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
595 /* session_id - valid? */
596 unsigned int session_id_length;
597 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
599 * this is used to determine whether the session is being reused in the
600 * appropriate context. It is up to the application to set this, via
603 unsigned int sid_ctx_length;
604 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
605 # ifndef OPENSSL_NO_PSK
606 char *psk_identity_hint;
610 * Used to indicate that session resumption is not allowed. Applications
611 * can also set this bit for a new session via not_resumable_session_cb
612 * to disable session caching and tickets.
615 /* This is the cert and type for the other end. */
618 /* Certificate chain peer sent */
619 STACK_OF(X509) *peer_chain;
621 * when app_verify_callback accepts a session where the peer's
622 * certificate is not ok, we must remember the error for session reuse:
624 long verify_result; /* only for servers */
628 unsigned int compress_meth; /* Need to lookup the method */
629 const SSL_CIPHER *cipher;
630 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
631 * to load the 'cipher' structure */
632 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
633 CRYPTO_EX_DATA ex_data; /* application specific data */
635 * These are used to make removal of session-ids more efficient and to
636 * implement a maximum cache size.
638 struct ssl_session_st *prev, *next;
639 char *tlsext_hostname;
640 # ifndef OPENSSL_NO_EC
641 size_t tlsext_ecpointformatlist_length;
642 unsigned char *tlsext_ecpointformatlist; /* peer's list */
643 size_t tlsext_ellipticcurvelist_length;
644 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
645 # endif /* OPENSSL_NO_EC */
647 unsigned char *tlsext_tick; /* Session ticket */
648 size_t tlsext_ticklen; /* Session ticket length */
649 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
650 # ifndef OPENSSL_NO_SRP
656 /* Extended master secret support */
657 # define SSL_SESS_FLAG_EXTMS 0x1
660 # ifndef OPENSSL_NO_SRP
662 typedef struct srp_ctx_st {
663 /* param for all the callbacks */
665 /* set client Hello login callback */
666 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
667 /* set SRP N/g param callback for verification */
668 int (*SRP_verify_param_callback) (SSL *, void *);
669 /* set SRP client passwd callback */
670 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
672 BIGNUM *N, *g, *s, *B, *A;
676 unsigned long srp_Mask;
687 DEFINE_LHASH_OF(SSL_SESSION);
688 /* Needed in ssl_cert.c */
689 DEFINE_LHASH_OF(X509_NAME);
692 const SSL_METHOD *method;
693 STACK_OF(SSL_CIPHER) *cipher_list;
694 /* same as above but sorted for lookup */
695 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
696 struct x509_store_st /* X509_STORE */ *cert_store;
697 LHASH_OF(SSL_SESSION) *sessions;
699 * Most session-ids that will be cached, default is
700 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
702 unsigned long session_cache_size;
703 struct ssl_session_st *session_cache_head;
704 struct ssl_session_st *session_cache_tail;
706 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
707 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
708 * means only SSL_accept which cache SSL_SESSIONS.
710 uint32_t session_cache_mode;
712 * If timeout is not 0, it is the default timeout value set when
713 * SSL_new() is called. This has been put in to make life easier to set
716 long session_timeout;
718 * If this callback is not null, it will be called each time a session id
719 * is added to the cache. If this function returns 1, it means that the
720 * callback will do a SSL_SESSION_free() when it has finished using it.
721 * Otherwise, on 0, it means the callback has finished with it. If
722 * remove_session_cb is not null, it will be called when a session-id is
723 * removed from the cache. After the call, OpenSSL will
724 * SSL_SESSION_free() it.
726 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
727 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
728 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
729 const unsigned char *data, int len,
732 int sess_connect; /* SSL new conn - started */
733 int sess_connect_renegotiate; /* SSL reneg - requested */
734 int sess_connect_good; /* SSL new conne/reneg - finished */
735 int sess_accept; /* SSL new accept - started */
736 int sess_accept_renegotiate; /* SSL reneg - requested */
737 int sess_accept_good; /* SSL accept/reneg - finished */
738 int sess_miss; /* session lookup misses */
739 int sess_timeout; /* reuse attempt on timeouted session */
740 int sess_cache_full; /* session removed due to full cache */
741 int sess_hit; /* session reuse actually done */
742 int sess_cb_hit; /* session-id that was not in the cache was
743 * passed back via the callback. This
744 * indicates that the application is
745 * supplying session-id's from other
746 * processes - spooky :-) */
751 /* if defined, these override the X509_verify_cert() calls */
752 int (*app_verify_callback) (X509_STORE_CTX *, void *);
753 void *app_verify_arg;
755 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
756 * ('app_verify_callback' was called with just one argument)
759 /* Default password callback. */
760 pem_password_cb *default_passwd_callback;
762 /* Default password callback user data. */
763 void *default_passwd_callback_userdata;
765 /* get client cert callback */
766 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
768 /* cookie generate callback */
769 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
770 unsigned int *cookie_len);
772 /* verify cookie callback */
773 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
774 unsigned int cookie_len);
776 CRYPTO_EX_DATA ex_data;
778 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
779 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
781 STACK_OF(X509) *extra_certs;
782 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
784 /* Default values used when no per-SSL value is defined follow */
786 /* used if SSL's info_callback is NULL */
787 void (*info_callback) (const SSL *ssl, int type, int val);
789 /* what we put in client cert requests */
790 STACK_OF(X509_NAME) *client_CA;
793 * Default values to use in SSL structures follow (these are copied by
799 int min_proto_version;
800 int max_proto_version;
803 struct cert_st /* CERT */ *cert;
806 /* callback that allows applications to peek at protocol messages */
807 void (*msg_callback) (int write_p, int version, int content_type,
808 const void *buf, size_t len, SSL *ssl, void *arg);
809 void *msg_callback_arg;
811 uint32_t verify_mode;
812 unsigned int sid_ctx_length;
813 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
814 /* called 'verify_callback' in the SSL */
815 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
817 /* Default generate session ID callback. */
818 GEN_SESSION_CB generate_session_id;
820 X509_VERIFY_PARAM *param;
825 * Maximum amount of data to send in one fragment. actual record size can
826 * be more than this due to padding and MAC overheads.
828 unsigned int max_send_fragment;
830 # ifndef OPENSSL_NO_ENGINE
832 * Engine to pass requests for client certs to
834 ENGINE *client_cert_engine;
837 /* TLS extensions servername callback */
838 int (*tlsext_servername_callback) (SSL *, int *, void *);
839 void *tlsext_servername_arg;
840 /* RFC 4507 session ticket keys */
841 unsigned char tlsext_tick_key_name[16];
842 unsigned char tlsext_tick_hmac_key[16];
843 unsigned char tlsext_tick_aes_key[16];
844 /* Callback to support customisation of ticket key setting */
845 int (*tlsext_ticket_key_cb) (SSL *ssl,
846 unsigned char *name, unsigned char *iv,
847 EVP_CIPHER_CTX *ectx,
848 HMAC_CTX *hctx, int enc);
850 /* certificate status request info */
851 /* Callback for status request */
852 int (*tlsext_status_cb) (SSL *ssl, void *arg);
853 void *tlsext_status_arg;
855 # ifndef OPENSSL_NO_PSK
856 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
858 unsigned int max_identity_len,
860 unsigned int max_psk_len);
861 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
863 unsigned int max_psk_len);
866 # ifndef OPENSSL_NO_SRP
867 SRP_CTX srp_ctx; /* ctx for SRP authentication */
870 # ifndef OPENSSL_NO_NEXTPROTONEG
871 /* Next protocol negotiation information */
872 /* (for experimental NPN extension). */
875 * For a server, this contains a callback function by which the set of
876 * advertised protocols can be provided.
878 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
879 unsigned int *len, void *arg);
880 void *next_protos_advertised_cb_arg;
882 * For a client, this contains a callback function that selects the next
883 * protocol from the list provided by the server.
885 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
886 unsigned char *outlen,
887 const unsigned char *in,
888 unsigned int inlen, void *arg);
889 void *next_proto_select_cb_arg;
893 * ALPN information (we are in the process of transitioning from NPN to
898 * For a server, this contains a callback function that allows the
899 * server to select the protocol for the connection.
900 * out: on successful return, this must point to the raw protocol
901 * name (without the length prefix).
902 * outlen: on successful return, this contains the length of |*out|.
903 * in: points to the client's list of supported protocols in
905 * inlen: the length of |in|.
907 int (*alpn_select_cb) (SSL *s,
908 const unsigned char **out,
909 unsigned char *outlen,
910 const unsigned char *in,
911 unsigned int inlen, void *arg);
912 void *alpn_select_cb_arg;
915 * For a client, this contains the list of supported protocols in wire
918 unsigned char *alpn_client_proto_list;
919 unsigned alpn_client_proto_list_len;
921 /* Shared DANE context */
922 struct dane_ctx_st dane;
924 /* SRTP profiles we are willing to do from RFC 5764 */
925 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
927 * Callback for disabling session caching and ticket support on a session
928 * basis, depending on the chosen cipher.
930 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
931 # ifndef OPENSSL_NO_EC
932 /* EC extension values inherited by SSL structure */
933 size_t tlsext_ecpointformatlist_length;
934 unsigned char *tlsext_ecpointformatlist;
935 size_t tlsext_ellipticcurvelist_length;
936 unsigned char *tlsext_ellipticcurvelist;
937 # endif /* OPENSSL_NO_EC */
943 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
949 const SSL_METHOD *method;
951 * There are 2 BIO's even though they are normally both the same. This
952 * is so data can be read and written to different handlers
954 /* used by SSL_read */
956 /* used by SSL_write */
958 /* used during session-id reuse to concatenate messages */
961 * This holds a variable that indicates what we were doing when a 0 or -1
962 * is returned. This is needed for non-blocking IO so we know what
963 * request needs re-doing when in SSL_accept or SSL_connect
967 int (*handshake_func) (SSL *);
969 * Imagine that here's a boolean member "init" that is switched as soon
970 * as SSL_set_{accept/connect}_state is called for the first time, so
971 * that "state" and "handshake_func" are properly initialized. But as
972 * handshake_func is == 0 until then, we use this test instead of an
975 /* are we the server side? */
978 * Generate a new session or reuse an old one.
979 * NB: For servers, the 'new' session may actually be a previously
980 * cached session or even the previous session unless
981 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
984 /* don't send shutdown packets */
986 /* we have shut things down, 0x01 sent, 0x02 for received */
991 BUF_MEM *init_buf; /* buffer used during init */
992 void *init_msg; /* pointer to handshake message body, set by
993 * ssl3_get_message() */
994 int init_num; /* amount read/written */
995 int init_off; /* amount read/written */
997 struct ssl3_state_st *s3; /* SSLv3 variables */
998 struct dtls1_state_st *d1; /* DTLSv1 variables */
1000 /* callback that allows applications to peek at protocol messages */
1001 void (*msg_callback) (int write_p, int version, int content_type,
1002 const void *buf, size_t len, SSL *ssl, void *arg);
1003 void *msg_callback_arg;
1004 int hit; /* reusing a previous session */
1005 X509_VERIFY_PARAM *param;
1007 /* Per connection DANE state */
1008 struct dane_st dane;
1011 STACK_OF(SSL_CIPHER) *cipher_list;
1012 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1014 * These are the ones being used, the ones in SSL_SESSION are the ones to
1015 * be 'copied' into these ones
1018 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1019 EVP_MD_CTX *read_hash; /* used for mac generation */
1020 COMP_CTX *compress; /* compression */
1021 COMP_CTX *expand; /* uncompress */
1022 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1023 EVP_MD_CTX *write_hash; /* used for mac generation */
1026 /* This is used to hold the server certificate used */
1027 struct cert_st /* CERT */ *cert;
1029 * the session_id_context is used to ensure sessions are only reused in
1030 * the appropriate context
1032 unsigned int sid_ctx_length;
1033 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1034 /* This can also be in the session once a session is established */
1035 SSL_SESSION *session;
1036 /* Default generate session ID callback. */
1037 GEN_SESSION_CB generate_session_id;
1040 * 0 don't care about verify failure.
1041 * 1 fail if verify fails
1043 uint32_t verify_mode;
1044 /* fail if callback returns 0 */
1045 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1046 /* optional informational callback */
1047 void (*info_callback) (const SSL *ssl, int type, int val);
1048 /* error bytes to be written */
1052 # ifndef OPENSSL_NO_PSK
1053 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
1055 unsigned int max_identity_len,
1057 unsigned int max_psk_len);
1058 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
1060 unsigned int max_psk_len);
1063 /* Verified chain of peer */
1064 STACK_OF(X509) *verified_chain;
1066 /* extra application data */
1067 CRYPTO_EX_DATA ex_data;
1068 /* for server side, keep the list of CA_dn we can use */
1069 STACK_OF(X509_NAME) *client_CA;
1071 /* protocol behaviour */
1075 int min_proto_version;
1076 int max_proto_version;
1079 /* what was passed, used for SSLv3/TLS rollback check */
1081 unsigned int max_send_fragment;
1083 /* TLS extension debug callback */
1084 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1085 const unsigned char *data, int len, void *arg);
1086 void *tlsext_debug_arg;
1087 char *tlsext_hostname;
1089 * no further mod of servername
1090 * 0 : call the servername extension callback.
1091 * 1 : prepare 2, allow last ack just after in server callback.
1092 * 2 : don't call servername callback, no ack in server hello
1094 int servername_done;
1095 /* certificate status request info */
1096 /* Status type or -1 if no status type */
1097 int tlsext_status_type;
1098 /* Expect OCSP CertificateStatus message */
1099 int tlsext_status_expected;
1100 /* OCSP status request only */
1101 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1102 X509_EXTENSIONS *tlsext_ocsp_exts;
1103 /* OCSP response received or to be sent */
1104 unsigned char *tlsext_ocsp_resp;
1105 int tlsext_ocsp_resplen;
1106 /* RFC4507 session ticket expected to be received or sent */
1107 int tlsext_ticket_expected;
1108 # ifndef OPENSSL_NO_EC
1109 size_t tlsext_ecpointformatlist_length;
1111 unsigned char *tlsext_ecpointformatlist;
1112 size_t tlsext_ellipticcurvelist_length;
1114 unsigned char *tlsext_ellipticcurvelist;
1115 # endif /* OPENSSL_NO_EC */
1116 /* TLS Session Ticket extension override */
1117 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1118 /* TLS Session Ticket extension callback */
1119 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1120 void *tls_session_ticket_ext_cb_arg;
1121 /* TLS pre-shared secret session resumption */
1122 tls_session_secret_cb_fn tls_session_secret_cb;
1123 void *tls_session_secret_cb_arg;
1124 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1125 # ifndef OPENSSL_NO_NEXTPROTONEG
1127 * Next protocol negotiation. For the client, this is the protocol that
1128 * we sent in NextProtocol and is set when handling ServerHello
1129 * extensions. For a server, this is the client's selected_protocol from
1130 * NextProtocol and is set when handling the NextProtocol message, before
1131 * the Finished message.
1133 unsigned char *next_proto_negotiated;
1134 unsigned char next_proto_negotiated_len;
1136 # define session_ctx initial_ctx
1138 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1139 /* What's been chosen */
1140 SRTP_PROTECTION_PROFILE *srtp_profile;
1142 * Is use of the Heartbeat extension negotiated?
1145 * 2: enabled, but not allowed to send Requests
1147 unsigned int tlsext_heartbeat;
1148 /* Indicates if a HeartbeatRequest is in flight */
1149 unsigned int tlsext_hb_pending;
1150 /* HeartbeatRequest sequence number */
1151 unsigned int tlsext_hb_seq;
1153 * For a client, this contains the list of supported protocols in wire
1156 unsigned char *alpn_client_proto_list;
1157 unsigned alpn_client_proto_list_len;
1160 * 1 if we are renegotiating.
1161 * 2 if we are a server and are inside a handshake
1162 * (i.e. not just sending a HelloRequest)
1165 # ifndef OPENSSL_NO_SRP
1166 /* ctx for SRP authentication */
1170 * Callback for disabling session caching and ticket support on a session
1171 * basis, depending on the chosen cipher.
1173 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1175 RECORD_LAYER rlayer;
1177 /* Default password callback. */
1178 pem_password_cb *default_passwd_callback;
1180 /* Default password callback user data. */
1181 void *default_passwd_callback_userdata;
1183 /* Async Job info */
1188 typedef struct ssl3_state_st {
1190 int read_mac_secret_size;
1191 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1192 int write_mac_secret_size;
1193 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1194 unsigned char server_random[SSL3_RANDOM_SIZE];
1195 unsigned char client_random[SSL3_RANDOM_SIZE];
1196 /* flags for countermeasure against known-IV weakness */
1197 int need_empty_fragments;
1198 int empty_fragment_done;
1199 /* used during startup, digest all incoming/outgoing packets */
1200 BIO *handshake_buffer;
1202 * When handshake digest is determined, buffer is hashed and
1203 * freed and MD_CTX for the required digest is stored here.
1205 EVP_MD_CTX *handshake_dgst;
1207 * Set whenever an expected ChangeCipherSpec message is processed.
1208 * Unset when the peer's Finished message is received.
1209 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1211 int change_cipher_spec;
1215 * we allow one fatal and one warning alert to be outstanding, send close
1216 * alert via the warning alert
1219 unsigned char send_alert[2];
1221 * This flag is set when we should renegotiate ASAP, basically when there
1222 * is no more data in the read or write buffers
1225 int total_renegotiations;
1226 int num_renegotiations;
1227 int in_read_app_data;
1229 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1230 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1232 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1233 int peer_finish_md_len;
1234 unsigned long message_size;
1236 /* used to hold the new cipher we are going to use */
1237 const SSL_CIPHER *new_cipher;
1238 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1239 EVP_PKEY *pkey; /* holds short lived DH/ECDH key */
1241 /* used for certificate requests */
1244 char ctype[SSL3_CT_NUMBER];
1245 STACK_OF(X509_NAME) *ca_names;
1246 int key_block_length;
1247 unsigned char *key_block;
1248 const EVP_CIPHER *new_sym_enc;
1249 const EVP_MD *new_hash;
1250 int new_mac_pkey_type;
1251 int new_mac_secret_size;
1252 # ifndef OPENSSL_NO_COMP
1253 const SSL_COMP *new_compression;
1255 char *new_compression;
1258 /* Raw values of the cipher list from a client */
1259 unsigned char *ciphers_raw;
1260 size_t ciphers_rawlen;
1261 /* Temporary storage for premaster secret */
1264 #ifndef OPENSSL_NO_PSK
1265 /* Temporary storage for PSK key */
1270 * signature algorithms peer reports: e.g. supported signature
1271 * algorithms extension for server or as part of a certificate
1272 * request for client.
1274 unsigned char *peer_sigalgs;
1275 /* Size of above array */
1276 size_t peer_sigalgslen;
1277 /* Digest peer uses for signing */
1278 const EVP_MD *peer_md;
1279 /* Array of digests used for signing */
1280 const EVP_MD *md[SSL_PKEY_NUM];
1282 * Set if corresponding CERT_PKEY can be used with current
1283 * SSL session: e.g. appropriate curve, signature algorithms etc.
1284 * If zero it can't be used at all.
1286 uint32_t valid_flags[SSL_PKEY_NUM];
1288 * For servers the following masks are for the key and auth algorithms
1289 * that are supported by the certs below. For clients they are masks of
1290 * *disabled* algorithms based on the current session.
1298 /* Connection binding to prevent renegotiation attacks */
1299 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1300 unsigned char previous_client_finished_len;
1301 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1302 unsigned char previous_server_finished_len;
1303 int send_connection_binding; /* TODOEKR */
1305 # ifndef OPENSSL_NO_NEXTPROTONEG
1307 * Set if we saw the Next Protocol Negotiation extension from our peer.
1309 int next_proto_neg_seen;
1313 * ALPN information (we are in the process of transitioning from NPN to
1318 * In a server these point to the selected ALPN protocol after the
1319 * ClientHello has been processed. In a client these contain the protocol
1320 * that the server selected once the ServerHello has been processed.
1322 unsigned char *alpn_selected;
1323 unsigned alpn_selected_len;
1325 # ifndef OPENSSL_NO_EC
1327 * This is set to true if we believe that this is a version of Safari
1328 * running on OS X 10.6 or newer. We wish to know this because Safari on
1329 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1331 char is_probably_safari;
1332 # endif /* !OPENSSL_NO_EC */
1334 /* For clients: peer temporary key */
1335 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1342 /* DTLS structures */
1344 # ifndef OPENSSL_NO_SCTP
1345 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1348 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1349 # define DTLS1_MAX_MTU_OVERHEAD 48
1352 * Flag used in message reuse to indicate the buffer contains the record
1353 * header as well as the the handshake message header.
1355 # define DTLS1_SKIP_RECORD_HEADER 2
1357 struct dtls1_retransmit_state {
1358 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1359 EVP_MD_CTX *write_hash; /* used for mac generation */
1360 COMP_CTX *compress; /* compression */
1361 SSL_SESSION *session;
1362 unsigned short epoch;
1365 struct hm_header_st {
1367 unsigned long msg_len;
1369 unsigned long frag_off;
1370 unsigned long frag_len;
1371 unsigned int is_ccs;
1372 struct dtls1_retransmit_state saved_retransmit_state;
1375 struct dtls1_timeout_st {
1376 /* Number of read timeouts so far */
1377 unsigned int read_timeouts;
1378 /* Number of write timeouts so far */
1379 unsigned int write_timeouts;
1380 /* Number of alerts received so far */
1381 unsigned int num_alerts;
1384 typedef struct hm_fragment_st {
1385 struct hm_header_st msg_header;
1386 unsigned char *fragment;
1387 unsigned char *reassembly;
1390 typedef struct pqueue_st pqueue;
1391 typedef struct pitem_st pitem;
1394 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1399 typedef struct pitem_st *piterator;
1401 pitem *pitem_new(unsigned char *prio64be, void *data);
1402 void pitem_free(pitem *item);
1403 pqueue* pqueue_new(void);
1404 void pqueue_free(pqueue *pq);
1405 pitem *pqueue_insert(pqueue *pq, pitem *item);
1406 pitem *pqueue_peek(pqueue *pq);
1407 pitem *pqueue_pop(pqueue *pq);
1408 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1409 pitem *pqueue_iterator(pqueue *pq);
1410 pitem *pqueue_next(piterator *iter);
1411 void pqueue_print(pqueue *pq);
1412 int pqueue_size(pqueue *pq);
1414 typedef struct dtls1_state_st {
1415 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1416 unsigned int cookie_len;
1417 unsigned int cookie_verified;
1419 /* handshake message numbers */
1420 unsigned short handshake_write_seq;
1421 unsigned short next_handshake_write_seq;
1422 unsigned short handshake_read_seq;
1424 /* Buffered handshake messages */
1425 pqueue *buffered_messages;
1426 /* Buffered (sent) handshake records */
1427 pqueue *sent_messages;
1429 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1430 unsigned int mtu; /* max DTLS packet size */
1431 struct hm_header_st w_msg_hdr;
1432 struct hm_header_st r_msg_hdr;
1433 struct dtls1_timeout_st timeout;
1435 * Indicates when the last handshake msg or heartbeat sent will timeout
1437 struct timeval next_timeout;
1438 /* Timeout duration */
1439 unsigned short timeout_duration;
1441 unsigned int retransmitting;
1442 # ifndef OPENSSL_NO_SCTP
1443 int shutdown_received;
1449 # ifndef OPENSSL_NO_EC
1451 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1453 # define EXPLICIT_PRIME_CURVE_TYPE 1
1454 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1455 # define NAMED_CURVE_TYPE 3
1456 # endif /* OPENSSL_NO_EC */
1458 typedef struct cert_pkey_st {
1460 EVP_PKEY *privatekey;
1461 /* Chain for this certificate */
1462 STACK_OF(X509) *chain;
1465 * serverinfo data for this certificate. The data is in TLS Extension
1466 * wire format, specifically it's a series of records like:
1467 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1469 * uint8_t data[length];
1471 unsigned char *serverinfo;
1472 size_t serverinfo_length;
1474 /* Retrieve Suite B flags */
1475 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1476 /* Uses to check strict mode: suite B modes are always strict */
1477 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1478 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1481 unsigned short ext_type;
1483 * Per-connection flags relating to this extension type: not used if
1484 * part of an SSL_CTX structure.
1487 custom_ext_add_cb add_cb;
1488 custom_ext_free_cb free_cb;
1490 custom_ext_parse_cb parse_cb;
1492 } custom_ext_method;
1494 /* ext_flags values */
1497 * Indicates an extension has been received. Used to check for unsolicited or
1498 * duplicate extensions.
1500 # define SSL_EXT_FLAG_RECEIVED 0x1
1502 * Indicates an extension has been sent: used to enable sending of
1503 * corresponding ServerHello extension.
1505 # define SSL_EXT_FLAG_SENT 0x2
1508 custom_ext_method *meths;
1510 } custom_ext_methods;
1512 typedef struct cert_st {
1513 /* Current active set */
1515 * ALWAYS points to an element of the pkeys array
1516 * Probably it would make more sense to store
1517 * an index, not a pointer.
1520 # ifndef OPENSSL_NO_DH
1522 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1525 /* Flags related to certificates */
1526 uint32_t cert_flags;
1527 CERT_PKEY pkeys[SSL_PKEY_NUM];
1529 * Certificate types (received or sent) in certificate request message.
1530 * On receive this is only set if number of certificate types exceeds
1533 unsigned char *ctypes;
1536 * suppported signature algorithms. When set on a client this is sent in
1537 * the client hello as the supported signature algorithms extension. For
1538 * servers it represents the signature algorithms we are willing to use.
1540 unsigned char *conf_sigalgs;
1541 /* Size of above array */
1542 size_t conf_sigalgslen;
1544 * Client authentication signature algorithms, if not set then uses
1545 * conf_sigalgs. On servers these will be the signature algorithms sent
1546 * to the client in a cerificate request for TLS 1.2. On a client this
1547 * represents the signature algortithms we are willing to use for client
1550 unsigned char *client_sigalgs;
1551 /* Size of above array */
1552 size_t client_sigalgslen;
1554 * Signature algorithms shared by client and server: cached because these
1555 * are used most often.
1557 TLS_SIGALGS *shared_sigalgs;
1558 size_t shared_sigalgslen;
1560 * Certificate setup callback: if set is called whenever a certificate
1561 * may be required (client or server). the callback can then examine any
1562 * appropriate parameters and setup any certificates required. This
1563 * allows advanced applications to select certificates on the fly: for
1564 * example based on supported signature algorithms or curves.
1566 int (*cert_cb) (SSL *ssl, void *arg);
1569 * Optional X509_STORE for chain building or certificate validation If
1570 * NULL the parent SSL_CTX store is used instead.
1572 X509_STORE *chain_store;
1573 X509_STORE *verify_store;
1574 /* Custom extension methods for server and client */
1575 custom_ext_methods cli_ext;
1576 custom_ext_methods srv_ext;
1577 /* Security callback */
1578 int (*sec_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1579 void *other, void *ex);
1580 /* Security level */
1583 #ifndef OPENSSL_NO_PSK
1584 /* If not NULL psk identity hint to use for servers */
1585 char *psk_identity_hint;
1587 int references; /* >1 only if SSL_copy_session_id is used */
1590 /* Structure containing decoded values of signature algorithms extension */
1591 struct tls_sigalgs_st {
1592 /* NID of hash algorithm */
1594 /* NID of signature algorithm */
1596 /* Combined hash and signature NID */
1597 int signandhash_nid;
1598 /* Raw values used in extension */
1599 unsigned char rsign;
1600 unsigned char rhash;
1611 * #define ABORT_DEBUG
1614 * #define PKT_DEBUG 1
1620 * #define DES_OFB_DEBUG
1629 * #define IDEA_DEBUG
1632 # define FP_ICC (int (*)(const void *,const void *))
1635 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1636 * of a mess of functions, but hell, think of it as an opaque structure :-)
1638 typedef struct ssl3_enc_method {
1639 int (*enc) (SSL *, int);
1640 int (*mac) (SSL *, unsigned char *, int);
1641 int (*setup_key_block) (SSL *);
1642 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1644 int (*change_cipher_state) (SSL *, int);
1645 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1646 int finish_mac_length;
1647 const char *client_finished_label;
1648 int client_finished_label_len;
1649 const char *server_finished_label;
1650 int server_finished_label_len;
1651 int (*alert_value) (int);
1652 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1653 const char *, size_t,
1654 const unsigned char *, size_t,
1656 /* Various flags indicating protocol version requirements */
1658 /* Handshake header length */
1660 /* Set the handshake header */
1661 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1662 /* Write out handshake message */
1663 int (*do_write) (SSL *s);
1666 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1667 # define ssl_handshake_start(s) \
1668 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1669 # define ssl_set_handshake_header(s, htype, len) \
1670 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1671 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1673 /* Values for enc_flags */
1675 /* Uses explicit IV for CBC mode */
1676 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1677 /* Uses signature algorithms extension */
1678 # define SSL_ENC_FLAG_SIGALGS 0x2
1679 /* Uses SHA256 default PRF */
1680 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1682 # define SSL_ENC_FLAG_DTLS 0x8
1684 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1685 * apply to others in future.
1687 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1689 # ifndef OPENSSL_NO_COMP
1690 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1691 typedef struct ssl3_comp_st {
1692 int comp_id; /* The identifier byte for this compression
1694 char *name; /* Text name used for the compression type */
1695 COMP_METHOD *method; /* The method :-) */
1699 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1700 OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[];
1702 SSL_METHOD *ssl_bad_method(int ver);
1704 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1705 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1706 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1707 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1708 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1709 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1712 * Flags for SSL methods
1714 #define SSL_METHOD_NO_FIPS (1U<<0)
1715 #define SSL_METHOD_NO_SUITEB (1U<<1)
1717 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1718 s_connect, s_get_meth, enc_data) \
1719 const SSL_METHOD *func_name(void) \
1721 static const SSL_METHOD func_name##_data= { \
1735 ssl3_renegotiate_check, \
1738 ssl3_dispatch_alert, \
1741 ssl3_get_cipher_by_char, \
1742 ssl3_put_cipher_by_char, \
1747 tls1_default_timeout, \
1749 ssl_undefined_void_function, \
1750 ssl3_callback_ctrl, \
1751 ssl3_ctx_callback_ctrl, \
1753 return &func_name##_data; \
1756 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
1757 const SSL_METHOD *func_name(void) \
1759 static const SSL_METHOD func_name##_data= { \
1761 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1773 ssl3_renegotiate_check, \
1776 ssl3_dispatch_alert, \
1779 ssl3_get_cipher_by_char, \
1780 ssl3_put_cipher_by_char, \
1785 ssl3_default_timeout, \
1787 ssl_undefined_void_function, \
1788 ssl3_callback_ctrl, \
1789 ssl3_ctx_callback_ctrl, \
1791 return &func_name##_data; \
1794 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
1795 s_connect, s_get_meth, enc_data) \
1796 const SSL_METHOD *func_name(void) \
1798 static const SSL_METHOD func_name##_data= { \
1812 ssl3_renegotiate_check, \
1814 dtls1_write_app_data_bytes, \
1815 dtls1_dispatch_alert, \
1818 ssl3_get_cipher_by_char, \
1819 ssl3_put_cipher_by_char, \
1824 dtls1_default_timeout, \
1826 ssl_undefined_void_function, \
1827 ssl3_callback_ctrl, \
1828 ssl3_ctx_callback_ctrl, \
1830 return &func_name##_data; \
1833 struct openssl_ssl_test_functions {
1834 int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
1835 int (*p_ssl3_setup_buffers) (SSL *s);
1836 int (*p_dtls1_process_heartbeat) (SSL *s,
1837 unsigned char *p, unsigned int length);
1840 # ifndef OPENSSL_UNIT_TEST
1842 void ssl_clear_cipher_ctx(SSL *s);
1843 int ssl_clear_bad_session(SSL *s);
1844 __owur CERT *ssl_cert_new(void);
1845 __owur CERT *ssl_cert_dup(CERT *cert);
1846 void ssl_cert_clear_certs(CERT *c);
1847 void ssl_cert_free(CERT *c);
1848 __owur int ssl_get_new_session(SSL *s, int session);
1849 __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
1850 const PACKET *session_id);
1851 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1852 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1853 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1854 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1855 const SSL_CIPHER *const *bp);
1856 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1857 STACK_OF(SSL_CIPHER) **pref,
1858 STACK_OF(SSL_CIPHER) **sorted,
1859 const char *rule_str, CERT *c);
1860 void ssl_update_cache(SSL *s, int mode);
1861 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1862 const EVP_MD **md, int *mac_pkey_type,
1863 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1864 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1865 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1866 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1867 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1868 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1869 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1870 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1871 __owur int ssl_cert_set_current(CERT *c, long arg);
1872 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1873 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1876 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1877 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1878 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1879 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1881 __owur int ssl_security(SSL *s, int op, int bits, int nid, void *other);
1882 __owur int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other);
1884 int ssl_undefined_function(SSL *s);
1885 __owur int ssl_undefined_void_function(void);
1886 __owur int ssl_undefined_const_function(const SSL *s);
1887 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1888 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1889 size_t *serverinfo_length);
1890 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1891 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1892 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher);
1893 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1894 __owur int ssl_verify_alarm_type(long type);
1895 void ssl_load_ciphers(void);
1896 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1897 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1899 __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm, int nid);
1900 __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey);
1901 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
1903 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1904 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1905 void ssl3_init_finished_mac(SSL *s);
1906 __owur int ssl3_setup_key_block(SSL *s);
1907 __owur int ssl3_change_cipher_state(SSL *s, int which);
1908 void ssl3_cleanup_key_block(SSL *s);
1909 __owur int ssl3_do_write(SSL *s, int type);
1910 int ssl3_send_alert(SSL *s, int level, int desc);
1911 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1912 unsigned char *p, int len);
1913 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1914 __owur int ssl3_num_ciphers(void);
1915 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1916 int ssl3_renegotiate(SSL *ssl);
1917 int ssl3_renegotiate_check(SSL *ssl);
1918 __owur int ssl3_dispatch_alert(SSL *s);
1919 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1921 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1922 void ssl3_free_digest_list(SSL *s);
1923 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1924 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
1925 STACK_OF(SSL_CIPHER) *clnt,
1926 STACK_OF(SSL_CIPHER) *srvr);
1927 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1928 __owur int ssl3_new(SSL *s);
1929 void ssl3_free(SSL *s);
1930 __owur int ssl3_read(SSL *s, void *buf, int len);
1931 __owur int ssl3_peek(SSL *s, void *buf, int len);
1932 __owur int ssl3_write(SSL *s, const void *buf, int len);
1933 __owur int ssl3_shutdown(SSL *s);
1934 void ssl3_clear(SSL *s);
1935 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1936 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1937 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1938 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1940 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1941 __owur long ssl3_default_timeout(void);
1943 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1944 __owur int ssl3_handshake_write(SSL *s);
1946 __owur int ssl_allow_compression(SSL *s);
1948 __owur int ssl_set_client_hello_version(SSL *s);
1949 __owur int ssl_check_version_downgrade(SSL *s);
1950 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
1951 __owur int ssl_choose_server_version(SSL *s);
1952 __owur int ssl_choose_client_version(SSL *s, int version);
1954 __owur long tls1_default_timeout(void);
1955 __owur int dtls1_do_write(SSL *s, int type);
1956 void dtls1_set_message_header(SSL *s,
1957 unsigned char *p, unsigned char mt,
1959 unsigned long frag_off,
1960 unsigned long frag_len);
1962 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1964 __owur int dtls1_read_failed(SSL *s, int code);
1965 __owur int dtls1_buffer_message(SSL *s, int ccs);
1966 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq,
1967 unsigned long frag_off, int *found);
1968 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1969 int dtls1_retransmit_buffered_messages(SSL *s);
1970 void dtls1_clear_record_buffer(SSL *s);
1971 void dtls1_get_message_header(unsigned char *data,
1972 struct hm_header_st *msg_hdr);
1973 __owur long dtls1_default_timeout(void);
1974 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1975 __owur int dtls1_check_timeout_num(SSL *s);
1976 __owur int dtls1_handle_timeout(SSL *s);
1977 __owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1978 void dtls1_start_timer(SSL *s);
1979 void dtls1_stop_timer(SSL *s);
1980 __owur int dtls1_is_timer_expired(SSL *s);
1981 void dtls1_double_timeout(SSL *s);
1982 __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
1983 unsigned char *cookie,
1984 unsigned char cookie_len);
1985 __owur int dtls1_send_newsession_ticket(SSL *s);
1986 __owur unsigned int dtls1_min_mtu(SSL *s);
1987 void dtls1_hm_fragment_free(hm_fragment *frag);
1988 __owur int dtls1_query_mtu(SSL *s);
1990 __owur int tls1_new(SSL *s);
1991 void tls1_free(SSL *s);
1992 void tls1_clear(SSL *s);
1993 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1994 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1996 __owur int dtls1_new(SSL *s);
1997 void dtls1_free(SSL *s);
1998 void dtls1_clear(SSL *s);
1999 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2000 __owur int dtls1_shutdown(SSL *s);
2002 __owur int dtls1_dispatch_alert(SSL *s);
2004 __owur int ssl_init_wbio_buffer(SSL *s, int push);
2005 void ssl_free_wbio_buffer(SSL *s);
2007 __owur int tls1_change_cipher_state(SSL *s, int which);
2008 __owur int tls1_setup_key_block(SSL *s);
2009 __owur int tls1_final_finish_mac(SSL *s,
2010 const char *str, int slen, unsigned char *p);
2011 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
2012 unsigned char *p, int len);
2013 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2014 const char *label, size_t llen,
2015 const unsigned char *p, size_t plen,
2017 __owur int tls1_alert_code(int code);
2018 __owur int ssl3_alert_code(int code);
2019 __owur int ssl_ok(SSL *s);
2021 # ifndef OPENSSL_NO_EC
2022 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
2025 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2027 # ifndef OPENSSL_NO_EC
2028 __owur int tls1_ec_curve_id2nid(int curve_id);
2029 __owur int tls1_ec_nid2curve_id(int nid);
2030 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
2031 __owur int tls1_shared_curve(SSL *s, int nmatch);
2032 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
2033 int *curves, size_t ncurves);
2034 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
2036 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
2037 # endif /* OPENSSL_NO_EC */
2039 __owur int tls1_shared_list(SSL *s,
2040 const unsigned char *l1, size_t l1len,
2041 const unsigned char *l2, size_t l2len, int nmatch);
2042 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
2043 unsigned char *limit, int *al);
2044 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
2045 unsigned char *limit, int *al);
2046 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2047 void ssl_set_default_md(SSL *s);
2048 __owur int tls1_set_server_sigalgs(SSL *s);
2049 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2050 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2051 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2052 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2054 # ifndef OPENSSL_NO_HEARTBEATS
2055 __owur int dtls1_heartbeat(SSL *s);
2056 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2059 __owur int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
2060 const PACKET *session_id,
2063 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2065 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2066 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2067 void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
2069 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2070 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2071 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2073 void tls1_set_cert_validity(SSL *s);
2075 # ifndef OPENSSL_NO_DH
2076 __owur DH *ssl_get_auto_dh(SSL *s);
2079 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2080 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2082 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2083 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2084 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2086 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2088 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2090 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2091 __owur long ssl_get_algorithm2(SSL *s);
2092 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2093 const unsigned char *psig, size_t psiglen);
2094 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2095 __owur int tls1_process_sigalgs(SSL *s);
2096 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2097 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2098 const unsigned char *sig, EVP_PKEY *pkey);
2099 void ssl_set_client_disabled(SSL *s);
2100 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2102 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2104 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2105 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2107 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2109 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2110 __owur const EVP_MD *ssl_md(int idx);
2111 __owur const EVP_MD *ssl_handshake_md(SSL *s);
2112 __owur const EVP_MD *ssl_prf_md(SSL *s);
2115 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2116 __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2117 unsigned char *md_out,
2118 size_t *md_out_size,
2119 const unsigned char header[13],
2120 const unsigned char *data,
2121 size_t data_plus_mac_size,
2122 size_t data_plus_mac_plus_padding_size,
2123 const unsigned char *mac_secret,
2124 unsigned mac_secret_length, char is_sslv3);
2126 void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2127 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2128 size_t data_len, size_t orig_len);
2130 __owur int srp_generate_server_master_secret(SSL *s);
2131 __owur int srp_generate_client_master_secret(SSL *s);
2132 __owur int srp_verify_server_param(SSL *s, int *al);
2136 void custom_ext_init(custom_ext_methods *meths);
2138 __owur int custom_ext_parse(SSL *s, int server,
2139 unsigned int ext_type,
2140 const unsigned char *ext_data, size_t ext_size, int *al);
2141 __owur int custom_ext_add(SSL *s, int server,
2142 unsigned char **pret, unsigned char *limit, int *al);
2144 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2145 void custom_exts_free(custom_ext_methods *exts);
2149 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2150 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2151 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat