2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
11 /* ====================================================================
12 * Copyright 2005 Nokia. All rights reserved.
14 * The portions of the attached software ("Contribution") is developed by
15 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
18 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
19 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
20 * support (see RFC 4279) to OpenSSL.
22 * No patent licenses or other rights except those expressly stated in
23 * the OpenSSL open source license shall be deemed granted or received
24 * expressly, by implication, estoppel, or otherwise.
26 * No assurances are provided by Nokia that the Contribution does not
27 * infringe the patent or other intellectual property rights of any third
28 * party or that the license provides you with all the necessary rights
29 * to make use of the Contribution.
31 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
32 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
33 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
34 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
38 #ifndef HEADER_SSL_LOCL_H
39 # define HEADER_SSL_LOCL_H
46 # if defined(__unix) || defined(__unix__)
47 # include <sys/time.h> /* struct timeval for DTLS */
50 # include <openssl/buffer.h>
51 # include <openssl/comp.h>
52 # include <openssl/bio.h>
53 # include <openssl/stack.h>
54 # include <openssl/rsa.h>
55 # include <openssl/dsa.h>
56 # include <openssl/err.h>
57 # include <openssl/ssl.h>
58 # include <openssl/async.h>
59 # include <openssl/symhacks.h>
60 # include <openssl/ct.h>
61 # include "record/record.h"
62 # include "statem/statem.h"
63 # include "packet_locl.h"
64 # include "internal/dane.h"
65 # include "internal/refcount.h"
67 # ifdef OPENSSL_BUILD_SHLIBSSL
68 # undef OPENSSL_EXTERN
69 # define OPENSSL_EXTERN OPENSSL_EXPORT
72 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
73 l|=(((unsigned long)(*((c)++)))<< 8), \
74 l|=(((unsigned long)(*((c)++)))<<16), \
75 l|=(((unsigned long)(*((c)++)))<<24))
77 /* NOTE - c is not incremented as per c2l */
78 # define c2ln(c,l1,l2,n) { \
82 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
83 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
84 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
85 case 5: l2|=((unsigned long)(*(--(c)))); \
86 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
87 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
88 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
89 case 1: l1|=((unsigned long)(*(--(c)))); \
93 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
94 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
95 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
96 *((c)++)=(unsigned char)(((l)>>24)&0xff))
98 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
99 l|=((unsigned long)(*((c)++)))<<16, \
100 l|=((unsigned long)(*((c)++)))<< 8, \
101 l|=((unsigned long)(*((c)++))))
103 # define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \
104 l|=((uint64_t)(*((c)++)))<<48, \
105 l|=((uint64_t)(*((c)++)))<<40, \
106 l|=((uint64_t)(*((c)++)))<<32, \
107 l|=((uint64_t)(*((c)++)))<<24, \
108 l|=((uint64_t)(*((c)++)))<<16, \
109 l|=((uint64_t)(*((c)++)))<< 8, \
110 l|=((uint64_t)(*((c)++))))
113 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
114 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
115 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
116 *((c)++)=(unsigned char)(((l) )&0xff))
118 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
119 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
120 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
121 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
122 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
123 *((c)++)=(unsigned char)(((l) )&0xff))
125 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
126 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
127 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
128 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
129 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
130 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
131 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
132 *((c)++)=(unsigned char)(((l) )&0xff))
134 /* NOTE - c is not incremented as per l2c */
135 # define l2cn(l1,l2,c,n) { \
138 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
139 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
140 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
141 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
142 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
143 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
144 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
145 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
149 # define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \
150 (((unsigned int)((c)[1])) )),(c)+=2)
151 # define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \
152 (c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2)
154 # define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \
155 (((unsigned long)((c)[1]))<< 8)| \
156 (((unsigned long)((c)[2])) )),(c)+=3)
158 # define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \
159 (c)[1]=(unsigned char)(((l)>> 8)&0xff), \
160 (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3)
163 * DTLS version numbers are strange because they're inverted. Except for
164 * DTLS1_BAD_VER, which should be considered "lower" than the rest.
166 # define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
167 # define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
168 # define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
169 # define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
170 # define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
174 * Define the Bitmasks for SSL_CIPHER.algorithms.
175 * This bits are used packed as dense as possible. If new methods/ciphers
176 * etc will be added, the bits a likely to change, so this information
177 * is for internal library use only, even though SSL_CIPHER.algorithms
178 * can be publicly accessed.
179 * Use the according functions for cipher management instead.
181 * The bit mask handling in the selection and sorting scheme in
182 * ssl_create_cipher_list() has only limited capabilities, reflecting
183 * that the different entities within are mutually exclusive:
184 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
187 /* Bits for algorithm_mkey (key exchange algorithm) */
188 /* RSA key exchange */
189 # define SSL_kRSA 0x00000001U
190 /* tmp DH key no DH cert */
191 # define SSL_kDHE 0x00000002U
193 # define SSL_kEDH SSL_kDHE
195 # define SSL_kECDHE 0x00000004U
197 # define SSL_kEECDH SSL_kECDHE
199 # define SSL_kPSK 0x00000008U
200 /* GOST key exchange */
201 # define SSL_kGOST 0x00000010U
203 # define SSL_kSRP 0x00000020U
205 # define SSL_kRSAPSK 0x00000040U
206 # define SSL_kECDHEPSK 0x00000080U
207 # define SSL_kDHEPSK 0x00000100U
211 # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
213 /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
214 # define SSL_kANY 0x00000000U
216 /* Bits for algorithm_auth (server authentication) */
218 # define SSL_aRSA 0x00000001U
220 # define SSL_aDSS 0x00000002U
221 /* no auth (i.e. use ADH or AECDH) */
222 # define SSL_aNULL 0x00000004U
224 # define SSL_aECDSA 0x00000008U
226 # define SSL_aPSK 0x00000010U
227 /* GOST R 34.10-2001 signature auth */
228 # define SSL_aGOST01 0x00000020U
230 # define SSL_aSRP 0x00000040U
231 /* GOST R 34.10-2012 signature auth */
232 # define SSL_aGOST12 0x00000080U
233 /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
234 # define SSL_aANY 0x00000000U
236 /* Bits for algorithm_enc (symmetric encryption) */
237 # define SSL_DES 0x00000001U
238 # define SSL_3DES 0x00000002U
239 # define SSL_RC4 0x00000004U
240 # define SSL_RC2 0x00000008U
241 # define SSL_IDEA 0x00000010U
242 # define SSL_eNULL 0x00000020U
243 # define SSL_AES128 0x00000040U
244 # define SSL_AES256 0x00000080U
245 # define SSL_CAMELLIA128 0x00000100U
246 # define SSL_CAMELLIA256 0x00000200U
247 # define SSL_eGOST2814789CNT 0x00000400U
248 # define SSL_SEED 0x00000800U
249 # define SSL_AES128GCM 0x00001000U
250 # define SSL_AES256GCM 0x00002000U
251 # define SSL_AES128CCM 0x00004000U
252 # define SSL_AES256CCM 0x00008000U
253 # define SSL_AES128CCM8 0x00010000U
254 # define SSL_AES256CCM8 0x00020000U
255 # define SSL_eGOST2814789CNT12 0x00040000U
256 # define SSL_CHACHA20POLY1305 0x00080000U
258 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
259 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
260 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
261 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
262 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
264 /* Bits for algorithm_mac (symmetric authentication) */
266 # define SSL_MD5 0x00000001U
267 # define SSL_SHA1 0x00000002U
268 # define SSL_GOST94 0x00000004U
269 # define SSL_GOST89MAC 0x00000008U
270 # define SSL_SHA256 0x00000010U
271 # define SSL_SHA384 0x00000020U
272 /* Not a real MAC, just an indication it is part of cipher */
273 # define SSL_AEAD 0x00000040U
274 # define SSL_GOST12_256 0x00000080U
275 # define SSL_GOST89MAC12 0x00000100U
276 # define SSL_GOST12_512 0x00000200U
279 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
280 * sure to update this constant too
283 # define SSL_MD_MD5_IDX 0
284 # define SSL_MD_SHA1_IDX 1
285 # define SSL_MD_GOST94_IDX 2
286 # define SSL_MD_GOST89MAC_IDX 3
287 # define SSL_MD_SHA256_IDX 4
288 # define SSL_MD_SHA384_IDX 5
289 # define SSL_MD_GOST12_256_IDX 6
290 # define SSL_MD_GOST89MAC12_IDX 7
291 # define SSL_MD_GOST12_512_IDX 8
292 # define SSL_MD_MD5_SHA1_IDX 9
293 # define SSL_MD_SHA224_IDX 10
294 # define SSL_MD_SHA512_IDX 11
295 # define SSL_MAX_DIGEST 12
297 /* Bits for algorithm2 (handshake digests and other extra flags) */
299 /* Bits 0-7 are handshake MAC */
300 # define SSL_HANDSHAKE_MAC_MASK 0xFF
301 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
302 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
303 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
304 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
305 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
306 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
307 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
309 /* Bits 8-15 bits are PRF */
310 # define TLS1_PRF_DGST_SHIFT 8
311 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
312 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
313 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
314 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
315 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
316 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
317 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
320 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
321 * goes into algorithm2)
323 # define TLS1_STREAM_MAC 0x10000
325 # define SSL_STRONG_MASK 0x0000001FU
326 # define SSL_DEFAULT_MASK 0X00000020U
328 # define SSL_STRONG_NONE 0x00000001U
329 # define SSL_LOW 0x00000002U
330 # define SSL_MEDIUM 0x00000004U
331 # define SSL_HIGH 0x00000008U
332 # define SSL_FIPS 0x00000010U
333 # define SSL_NOT_DEFAULT 0x00000020U
335 /* we have used 0000003f - 26 bits left to go */
337 /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
338 # define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
340 /* Check if an SSL structure is using DTLS */
341 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
343 /* Check if we are using TLSv1.3 */
344 # define SSL_IS_TLS13(s) (!SSL_IS_DTLS(s) \
345 && (s)->method->version >= TLS1_3_VERSION \
346 && (s)->method->version != TLS_ANY_VERSION)
348 # define SSL_TREAT_AS_TLS13(s) \
349 (SSL_IS_TLS13(s) || (s)->early_data_state == SSL_EARLY_DATA_WRITING \
350 || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY)
352 # define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3->tmp.finish_md_len == 0)
354 /* See if we need explicit IV */
355 # define SSL_USE_EXPLICIT_IV(s) \
356 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
358 * See if we use signature algorithms extension and signature algorithm
361 # define SSL_USE_SIGALGS(s) \
362 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
364 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
365 * apply to others in future.
367 # define SSL_USE_TLS1_2_CIPHERS(s) \
368 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
370 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
371 * flags because it may not be set to correct version yet.
373 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
374 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
375 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
377 * Determine if a client should send signature algorithms extension:
378 * as with TLS1.2 cipher we can't rely on method flags.
380 # define SSL_CLIENT_USE_SIGALGS(s) \
381 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
383 # define SSL_READ_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ)
384 # define SSL_WRITE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE)
386 /* Mostly for SSLv3 */
387 # define SSL_PKEY_RSA 0
388 # define SSL_PKEY_DSA_SIGN 1
389 # define SSL_PKEY_ECC 2
390 # define SSL_PKEY_GOST01 3
391 # define SSL_PKEY_GOST12_256 4
392 # define SSL_PKEY_GOST12_512 5
393 # define SSL_PKEY_NUM 6
395 * Pseudo-constant. GOST cipher suites can use different certs for 1
396 * SSL_CIPHER. So let's see which one we have in fact.
398 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
401 * TODO(TLS1.3) for now use SSL_PKEY_RSA keys for PSS
404 #define SSL_PKEY_RSA_PSS_SIGN SSL_PKEY_RSA
407 * SSL_kRSA <- RSA_ENC
408 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
409 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
410 * SSL_aRSA <- RSA_ENC | RSA_SIGN
411 * SSL_aDSS <- DSA_SIGN
415 #define CERT_INVALID 0
416 #define CERT_PUBLIC_KEY 1
417 #define CERT_PRIVATE_KEY 2
420 /* CipherSuite length. SSLv3 and all TLS versions. */
421 # define TLS_CIPHER_LEN 2
422 /* used to hold info on the particular ciphers used */
423 struct ssl_cipher_st {
425 const char *name; /* text name */
426 uint32_t id; /* id, 4 bytes, first is version */
428 * changed in 1.0.0: these four used to be portions of a single value
431 uint32_t algorithm_mkey; /* key exchange algorithm */
432 uint32_t algorithm_auth; /* server authentication */
433 uint32_t algorithm_enc; /* symmetric encryption */
434 uint32_t algorithm_mac; /* symmetric authentication */
435 int min_tls; /* minimum SSL/TLS protocol version */
436 int max_tls; /* maximum SSL/TLS protocol version */
437 int min_dtls; /* minimum DTLS protocol version */
438 int max_dtls; /* maximum DTLS protocol version */
439 uint32_t algo_strength; /* strength and export flags */
440 uint32_t algorithm2; /* Extra flags */
441 int32_t strength_bits; /* Number of bits really used */
442 uint32_t alg_bits; /* Number of bits for algorithm */
445 /* Used to hold SSL/TLS functions */
446 struct ssl_method_st {
450 int (*ssl_new) (SSL *s);
451 int (*ssl_clear) (SSL *s);
452 void (*ssl_free) (SSL *s);
453 int (*ssl_accept) (SSL *s);
454 int (*ssl_connect) (SSL *s);
455 int (*ssl_read) (SSL *s, void *buf, size_t len, size_t *readbytes);
456 int (*ssl_peek) (SSL *s, void *buf, size_t len, size_t *readbytes);
457 int (*ssl_write) (SSL *s, const void *buf, size_t len, size_t *written);
458 int (*ssl_shutdown) (SSL *s);
459 int (*ssl_renegotiate) (SSL *s);
460 int (*ssl_renegotiate_check) (SSL *s, int);
461 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
462 unsigned char *buf, size_t len, int peek,
464 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, size_t len,
466 int (*ssl_dispatch_alert) (SSL *s);
467 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
468 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
469 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
470 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, WPACKET *pkt,
472 size_t (*ssl_pending) (const SSL *s);
473 int (*num_ciphers) (void);
474 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
475 long (*get_timeout) (void);
476 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
477 int (*ssl_version) (void);
478 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
479 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
483 * Lets make this into an ASN.1 type structure as follows
484 * SSL_SESSION_ID ::= SEQUENCE {
485 * version INTEGER, -- structure version number
486 * SSLversion INTEGER, -- SSL version number
487 * Cipher OCTET STRING, -- the 3 byte cipher ID
488 * Session_ID OCTET STRING, -- the Session ID
489 * Master_key OCTET STRING, -- the master key
490 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
491 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
492 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
493 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
494 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
495 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
496 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
497 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
498 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
499 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
500 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
501 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
502 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
503 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
505 * Look in ssl/ssl_asn1.c for more details
506 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
508 struct ssl_session_st {
509 int ssl_version; /* what ssl version session info is being kept
511 size_t master_key_length;
514 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
517 unsigned char master_key[TLS13_MAX_RESUMPTION_MASTER_LENGTH];
518 /* session_id - valid? */
519 size_t session_id_length;
520 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
522 * this is used to determine whether the session is being reused in the
523 * appropriate context. It is up to the application to set this, via
526 size_t sid_ctx_length;
527 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
528 # ifndef OPENSSL_NO_PSK
529 char *psk_identity_hint;
533 * Used to indicate that session resumption is not allowed. Applications
534 * can also set this bit for a new session via not_resumable_session_cb
535 * to disable session caching and tickets.
538 /* This is the cert and type for the other end. */
541 /* Certificate chain peer sent. */
542 STACK_OF(X509) *peer_chain;
544 * when app_verify_callback accepts a session where the peer's
545 * certificate is not ok, we must remember the error for session reuse:
547 long verify_result; /* only for servers */
548 CRYPTO_REF_COUNT references;
551 unsigned int compress_meth; /* Need to lookup the method */
552 const SSL_CIPHER *cipher;
553 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to
554 * load the 'cipher' structure */
555 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
556 CRYPTO_EX_DATA ex_data; /* application specific data */
558 * These are used to make removal of session-ids more efficient and to
559 * implement a maximum cache size.
561 struct ssl_session_st *prev, *next;
565 # ifndef OPENSSL_NO_EC
566 size_t ecpointformats_len;
567 unsigned char *ecpointformats; /* peer's list */
568 size_t supportedgroups_len;
569 unsigned char *supportedgroups; /* peer's list */
570 # endif /* OPENSSL_NO_EC */
572 unsigned char *tick; /* Session ticket */
573 size_t ticklen; /* Session ticket length */
574 /* Session lifetime hint in seconds */
575 unsigned long tick_lifetime_hint;
576 uint32_t tick_age_add;
578 /* Max number of bytes that can be sent as early data */
579 uint32_t max_early_data;
580 /* The ALPN protocol selected for this session */
581 unsigned char *alpn_selected;
582 size_t alpn_selected_len;
584 # ifndef OPENSSL_NO_SRP
591 /* Extended master secret support */
592 # define SSL_SESS_FLAG_EXTMS 0x1
594 # ifndef OPENSSL_NO_SRP
596 typedef struct srp_ctx_st {
597 /* param for all the callbacks */
599 /* set client Hello login callback */
600 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
601 /* set SRP N/g param callback for verification */
602 int (*SRP_verify_param_callback) (SSL *, void *);
603 /* set SRP client passwd callback */
604 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
606 BIGNUM *N, *g, *s, *B, *A;
610 unsigned long srp_Mask;
616 SSL_EARLY_DATA_NONE = 0,
617 SSL_EARLY_DATA_CONNECT_RETRY,
618 SSL_EARLY_DATA_CONNECTING,
619 SSL_EARLY_DATA_WRITE_RETRY,
620 SSL_EARLY_DATA_WRITING,
621 SSL_EARLY_DATA_UNAUTH_WRITING,
622 SSL_EARLY_DATA_FINISHED_WRITING,
623 SSL_EARLY_DATA_ACCEPT_RETRY,
624 SSL_EARLY_DATA_ACCEPTING,
625 SSL_EARLY_DATA_READ_RETRY,
626 SSL_EARLY_DATA_READING,
627 SSL_EARLY_DATA_FINISHED_READING
628 } SSL_EARLY_DATA_STATE;
631 * We check that the amount of unreadable early data doesn't exceed
632 * max_early_data. max_early_data is given in plaintext bytes. However if it is
633 * unreadable then we only know the number of ciphertext bytes. We also don't
634 * know how much the overhead should be because it depends on the ciphersuite.
635 * We make a small allowance. We assume 5 records of actual data plus the end
636 * of early data alert record. Each record has a tag and a content type byte.
637 * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
638 * content of the alert record either which is 2 bytes.
640 # define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
643 * The allowance we have between the client's calculated ticket age and our own.
644 * We allow for 10 seconds (units are in ms). If a ticket is presented and the
645 * client's age calculation is different by more than this than our own then we
646 * do not allow that ticket for early_data.
648 # define TICKET_AGE_ALLOWANCE (10 * 1000)
650 #define MAX_COMPRESSIONS_SIZE 255
658 typedef struct raw_extension_st {
659 /* Raw packet data for the extension */
661 /* Set to 1 if the extension is present or 0 otherwise */
663 /* Set to 1 if we have already parsed the extension or 0 otherwise */
665 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
667 /* Track what order extensions are received in (0-based). */
668 size_t received_order;
673 unsigned int legacy_version;
674 unsigned char random[SSL3_RANDOM_SIZE];
675 size_t session_id_len;
676 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
677 size_t dtls_cookie_len;
678 unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
680 size_t compressions_len;
681 unsigned char compressions[MAX_COMPRESSIONS_SIZE];
683 size_t pre_proc_exts_len;
684 RAW_EXTENSION *pre_proc_exts;
688 * Extension index values NOTE: Any updates to these defines should be mirrored
689 * with equivalent updates to ext_defs in extensions.c
691 typedef enum tlsext_index_en {
692 TLSEXT_IDX_renegotiate,
693 TLSEXT_IDX_server_name,
695 TLSEXT_IDX_ec_point_formats,
696 TLSEXT_IDX_supported_groups,
697 TLSEXT_IDX_session_ticket,
698 TLSEXT_IDX_signature_algorithms,
699 TLSEXT_IDX_status_request,
700 TLSEXT_IDX_next_proto_neg,
701 TLSEXT_IDX_application_layer_protocol_negotiation,
703 TLSEXT_IDX_encrypt_then_mac,
704 TLSEXT_IDX_signed_certificate_timestamp,
705 TLSEXT_IDX_extended_master_secret,
706 TLSEXT_IDX_supported_versions,
707 TLSEXT_IDX_psk_kex_modes,
708 TLSEXT_IDX_key_share,
710 TLSEXT_IDX_cryptopro_bug,
711 TLSEXT_IDX_early_data,
712 TLSEXT_IDX_certificate_authorities,
715 /* Dummy index - must always be the last entry */
716 TLSEXT_IDX_num_builtins
719 DEFINE_LHASH_OF(SSL_SESSION);
720 /* Needed in ssl_cert.c */
721 DEFINE_LHASH_OF(X509_NAME);
723 # define TLSEXT_KEYNAME_LENGTH 16
726 const SSL_METHOD *method;
727 STACK_OF(SSL_CIPHER) *cipher_list;
728 /* same as above but sorted for lookup */
729 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
730 struct x509_store_st /* X509_STORE */ *cert_store;
731 LHASH_OF(SSL_SESSION) *sessions;
733 * Most session-ids that will be cached, default is
734 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
736 size_t session_cache_size;
737 struct ssl_session_st *session_cache_head;
738 struct ssl_session_st *session_cache_tail;
740 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
741 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
742 * means only SSL_accept which cache SSL_SESSIONS.
744 uint32_t session_cache_mode;
746 * If timeout is not 0, it is the default timeout value set when
747 * SSL_new() is called. This has been put in to make life easier to set
750 long session_timeout;
752 * If this callback is not null, it will be called each time a session id
753 * is added to the cache. If this function returns 1, it means that the
754 * callback will do a SSL_SESSION_free() when it has finished using it.
755 * Otherwise, on 0, it means the callback has finished with it. If
756 * remove_session_cb is not null, it will be called when a session-id is
757 * removed from the cache. After the call, OpenSSL will
758 * SSL_SESSION_free() it.
760 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
761 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
762 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
763 const unsigned char *data, int len,
766 int sess_connect; /* SSL new conn - started */
767 int sess_connect_renegotiate; /* SSL reneg - requested */
768 int sess_connect_good; /* SSL new conne/reneg - finished */
769 int sess_accept; /* SSL new accept - started */
770 int sess_accept_renegotiate; /* SSL reneg - requested */
771 int sess_accept_good; /* SSL accept/reneg - finished */
772 int sess_miss; /* session lookup misses */
773 int sess_timeout; /* reuse attempt on timeouted session */
774 int sess_cache_full; /* session removed due to full cache */
775 int sess_hit; /* session reuse actually done */
776 int sess_cb_hit; /* session-id that was not in the cache was
777 * passed back via the callback. This
778 * indicates that the application is supplying
779 * session-id's from other processes - spooky
783 CRYPTO_REF_COUNT references;
785 /* if defined, these override the X509_verify_cert() calls */
786 int (*app_verify_callback) (X509_STORE_CTX *, void *);
787 void *app_verify_arg;
789 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
790 * ('app_verify_callback' was called with just one argument)
793 /* Default password callback. */
794 pem_password_cb *default_passwd_callback;
796 /* Default password callback user data. */
797 void *default_passwd_callback_userdata;
799 /* get client cert callback */
800 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
802 /* cookie generate callback */
803 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
804 unsigned int *cookie_len);
806 /* verify cookie callback */
807 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
808 unsigned int cookie_len);
810 CRYPTO_EX_DATA ex_data;
812 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
813 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
815 STACK_OF(X509) *extra_certs;
816 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
818 /* Default values used when no per-SSL value is defined follow */
820 /* used if SSL's info_callback is NULL */
821 void (*info_callback) (const SSL *ssl, int type, int val);
824 * What we put in certificate_authorities extension for TLS 1.3
825 * (ClientHello and CertificateRequest) or just client cert requests for
828 STACK_OF(X509_NAME) *ca_names;
831 * Default values to use in SSL structures follow (these are copied by
837 int min_proto_version;
838 int max_proto_version;
839 size_t max_cert_list;
841 struct cert_st /* CERT */ *cert;
844 /* callback that allows applications to peek at protocol messages */
845 void (*msg_callback) (int write_p, int version, int content_type,
846 const void *buf, size_t len, SSL *ssl, void *arg);
847 void *msg_callback_arg;
849 uint32_t verify_mode;
850 size_t sid_ctx_length;
851 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
852 /* called 'verify_callback' in the SSL */
853 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
855 /* Default generate session ID callback. */
856 GEN_SESSION_CB generate_session_id;
858 X509_VERIFY_PARAM *param;
862 # ifndef OPENSSL_NO_CT
863 CTLOG_STORE *ctlog_store; /* CT Log Store */
865 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
866 * If they are not, the connection should be aborted.
868 ssl_ct_validation_cb ct_validation_callback;
869 void *ct_validation_callback_arg;
873 * If we're using more than one pipeline how should we divide the data
874 * up between the pipes?
876 size_t split_send_fragment;
878 * Maximum amount of data to send in one fragment. actual record size can
879 * be more than this due to padding and MAC overheads.
881 size_t max_send_fragment;
883 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
884 size_t max_pipelines;
886 /* The default read buffer length to use (0 means not set) */
887 size_t default_read_buf_len;
889 # ifndef OPENSSL_NO_ENGINE
891 * Engine to pass requests for client certs to
893 ENGINE *client_cert_engine;
896 /* Early callback. Mostly for extensions, but not entirely. */
897 SSL_early_cb_fn early_cb;
900 /* TLS extensions. */
902 /* TLS extensions servername callback */
903 int (*servername_cb) (SSL *, int *, void *);
904 void *servername_arg;
905 /* RFC 4507 session ticket keys */
906 unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH];
907 unsigned char tick_hmac_key[32];
908 unsigned char tick_aes_key[32];
909 /* Callback to support customisation of ticket key setting */
910 int (*ticket_key_cb) (SSL *ssl,
911 unsigned char *name, unsigned char *iv,
912 EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc);
914 /* certificate status request info */
915 /* Callback for status request */
916 int (*status_cb) (SSL *ssl, void *arg);
918 /* ext status type used for CSR extension (OCSP Stapling) */
921 # ifndef OPENSSL_NO_EC
922 /* EC extension values inherited by SSL structure */
923 size_t ecpointformats_len;
924 unsigned char *ecpointformats;
925 size_t supportedgroups_len;
926 unsigned char *supportedgroups;
927 # endif /* OPENSSL_NO_EC */
930 * ALPN information (we are in the process of transitioning from NPN to
935 * For a server, this contains a callback function that allows the
936 * server to select the protocol for the connection.
937 * out: on successful return, this must point to the raw protocol
938 * name (without the length prefix).
939 * outlen: on successful return, this contains the length of |*out|.
940 * in: points to the client's list of supported protocols in
942 * inlen: the length of |in|.
944 int (*alpn_select_cb) (SSL *s,
945 const unsigned char **out,
946 unsigned char *outlen,
947 const unsigned char *in,
948 unsigned int inlen, void *arg);
949 void *alpn_select_cb_arg;
952 * For a client, this contains the list of supported protocols in wire
958 # ifndef OPENSSL_NO_NEXTPROTONEG
959 /* Next protocol negotiation information */
962 * For a server, this contains a callback function by which the set of
963 * advertised protocols can be provided.
965 SSL_CTX_npn_advertised_cb_func npn_advertised_cb;
966 void *npn_advertised_cb_arg;
968 * For a client, this contains a callback function that selects the next
969 * protocol from the list provided by the server.
971 SSL_CTX_npn_select_cb_func npn_select_cb;
972 void *npn_select_cb_arg;
976 # ifndef OPENSSL_NO_PSK
977 SSL_psk_client_cb_func psk_client_callback;
978 SSL_psk_server_cb_func psk_server_callback;
981 # ifndef OPENSSL_NO_SRP
982 SRP_CTX srp_ctx; /* ctx for SRP authentication */
985 /* Shared DANE context */
986 struct dane_ctx_st dane;
988 /* SRTP profiles we are willing to do from RFC 5764 */
989 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
991 * Callback for disabling session caching and ticket support on a session
992 * basis, depending on the chosen cipher.
994 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
999 * Callback for logging key material for use with debugging tools like
1000 * Wireshark. The callback should log `line` followed by a newline.
1002 SSL_CTX_keylog_cb_func keylog_callback;
1004 /* The maximum number of bytes that can be sent as early data */
1005 uint32_t max_early_data;
1007 /* TLS1.3 padding callback */
1008 size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg);
1009 void *record_padding_arg;
1010 size_t block_padding;
1015 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
1020 const SSL_METHOD *method;
1022 * There are 2 BIO's even though they are normally both the same. This
1023 * is so data can be read and written to different handlers
1025 /* used by SSL_read */
1027 /* used by SSL_write */
1029 /* used during session-id reuse to concatenate messages */
1032 * This holds a variable that indicates what we were doing when a 0 or -1
1033 * is returned. This is needed for non-blocking IO so we know what
1034 * request needs re-doing when in SSL_accept or SSL_connect
1037 int (*handshake_func) (SSL *);
1039 * Imagine that here's a boolean member "init" that is switched as soon
1040 * as SSL_set_{accept/connect}_state is called for the first time, so
1041 * that "state" and "handshake_func" are properly initialized. But as
1042 * handshake_func is == 0 until then, we use this test instead of an
1045 /* are we the server side? */
1048 * Generate a new session or reuse an old one.
1049 * NB: For servers, the 'new' session may actually be a previously
1050 * cached session or even the previous session unless
1051 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1054 /* don't send shutdown packets */
1056 /* we have shut things down, 0x01 sent, 0x02 for received */
1060 SSL_EARLY_DATA_STATE early_data_state;
1061 BUF_MEM *init_buf; /* buffer used during init */
1062 void *init_msg; /* pointer to handshake message body, set by
1063 * ssl3_get_message() */
1064 size_t init_num; /* amount read/written */
1065 size_t init_off; /* amount read/written */
1066 struct ssl3_state_st *s3; /* SSLv3 variables */
1067 struct dtls1_state_st *d1; /* DTLSv1 variables */
1068 /* callback that allows applications to peek at protocol messages */
1069 void (*msg_callback) (int write_p, int version, int content_type,
1070 const void *buf, size_t len, SSL *ssl, void *arg);
1071 void *msg_callback_arg;
1072 int hit; /* reusing a previous session */
1073 X509_VERIFY_PARAM *param;
1074 /* Per connection DANE state */
1077 STACK_OF(SSL_CIPHER) *cipher_list;
1078 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1080 * These are the ones being used, the ones in SSL_SESSION are the ones to
1081 * be 'copied' into these ones
1085 * The TLS1.3 secrets. The resumption master secret is stored in the
1088 unsigned char early_secret[EVP_MAX_MD_SIZE];
1089 unsigned char handshake_secret[EVP_MAX_MD_SIZE];
1090 unsigned char master_secret[EVP_MAX_MD_SIZE];
1091 unsigned char client_finished_secret[EVP_MAX_MD_SIZE];
1092 unsigned char server_finished_secret[EVP_MAX_MD_SIZE];
1093 unsigned char server_finished_hash[EVP_MAX_MD_SIZE];
1094 unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE];
1095 unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE];
1096 unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE];
1097 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1098 unsigned char read_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static read IV */
1099 EVP_MD_CTX *read_hash; /* used for mac generation */
1100 COMP_CTX *compress; /* compression */
1101 COMP_CTX *expand; /* uncompress */
1102 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1103 unsigned char write_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static write IV */
1104 EVP_MD_CTX *write_hash; /* used for mac generation */
1105 /* Count of how many KeyUpdate messages we have received */
1106 unsigned int key_update_count;
1109 /* This is used to hold the server certificate used */
1110 struct cert_st /* CERT */ *cert;
1113 * The hash of all messages prior to the CertificateVerify, and the length
1116 unsigned char cert_verify_hash[EVP_MAX_MD_SIZE];
1117 size_t cert_verify_hash_len;
1119 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1120 int hello_retry_request;
1123 * the session_id_context is used to ensure sessions are only reused in
1124 * the appropriate context
1126 size_t sid_ctx_length;
1127 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1128 /* This can also be in the session once a session is established */
1129 SSL_SESSION *session;
1130 /* Default generate session ID callback. */
1131 GEN_SESSION_CB generate_session_id;
1134 * 0 don't care about verify failure.
1135 * 1 fail if verify fails
1137 uint32_t verify_mode;
1138 /* fail if callback returns 0 */
1139 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1140 /* optional informational callback */
1141 void (*info_callback) (const SSL *ssl, int type, int val);
1142 /* error bytes to be written */
1146 # ifndef OPENSSL_NO_PSK
1147 SSL_psk_client_cb_func psk_client_callback;
1148 SSL_psk_server_cb_func psk_server_callback;
1151 /* Verified chain of peer */
1152 STACK_OF(X509) *verified_chain;
1154 /* extra application data */
1155 CRYPTO_EX_DATA ex_data;
1156 /* for server side, keep the list of CA_dn we can use */
1157 STACK_OF(X509_NAME) *ca_names;
1158 CRYPTO_REF_COUNT references;
1159 /* protocol behaviour */
1163 int min_proto_version;
1164 int max_proto_version;
1165 size_t max_cert_list;
1168 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1169 * secret and SSLv3/TLS (<=1.2) rollback check
1173 * If we're using more than one pipeline how should we divide the data
1174 * up between the pipes?
1176 size_t split_send_fragment;
1178 * Maximum amount of data to send in one fragment. actual record size can
1179 * be more than this due to padding and MAC overheads.
1181 size_t max_send_fragment;
1182 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1183 size_t max_pipelines;
1186 /* Built-in extension flags */
1187 uint8_t extflags[TLSEXT_IDX_num_builtins];
1188 /* TLS extension debug callback */
1189 void (*debug_cb)(SSL *s, int client_server, int type,
1190 const unsigned char *data, int len, void *arg);
1193 /* certificate status request info */
1194 /* Status type or -1 if no status type */
1196 /* Raw extension data, if seen */
1197 unsigned char *scts;
1198 /* Length of raw extension data, if seen */
1200 /* Expect OCSP CertificateStatus message */
1201 int status_expected;
1204 /* OCSP status request only */
1205 STACK_OF(OCSP_RESPID) *ids;
1206 X509_EXTENSIONS *exts;
1207 /* OCSP response received or to be sent */
1208 unsigned char *resp;
1212 /* RFC4507 session ticket expected to be received or sent */
1213 int ticket_expected;
1214 # ifndef OPENSSL_NO_EC
1215 size_t ecpointformats_len;
1217 unsigned char *ecpointformats;
1218 size_t supportedgroups_len;
1220 unsigned char *supportedgroups;
1221 # endif /* OPENSSL_NO_EC */
1222 /* TLS Session Ticket extension override */
1223 TLS_SESSION_TICKET_EXT *session_ticket;
1224 /* TLS Session Ticket extension callback */
1225 tls_session_ticket_ext_cb_fn session_ticket_cb;
1226 void *session_ticket_cb_arg;
1227 /* TLS pre-shared secret session resumption */
1228 tls_session_secret_cb_fn session_secret_cb;
1229 void *session_secret_cb_arg;
1231 * For a client, this contains the list of supported protocols in wire
1234 unsigned char *alpn;
1237 * Next protocol negotiation. For the client, this is the protocol that
1238 * we sent in NextProtocol and is set when handling ServerHello
1239 * extensions. For a server, this is the client's selected_protocol from
1240 * NextProtocol and is set when handling the NextProtocol message, before
1241 * the Finished message.
1246 /* The available PSK key exchange modes */
1249 /* Set to one if we have negotiated ETM */
1252 /* Are we expecting to receive early data? */
1254 /* Is the session suitable for early data? */
1257 /* May be sent by a server in HRR. Must be echoed back in ClientHello */
1258 unsigned char *tls13_cookie;
1259 size_t tls13_cookie_len;
1262 /* Parsed form of the ClientHello, kept around across early_cb calls. */
1263 CLIENTHELLO_MSG *clienthello;
1266 * no further mod of servername
1267 * 0 : call the servername extension callback.
1268 * 1 : prepare 2, allow last ack just after in server callback.
1269 * 2 : don't call servername callback, no ack in server hello
1271 int servername_done;
1272 # ifndef OPENSSL_NO_CT
1274 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1275 * If they are not, the connection should be aborted.
1277 ssl_ct_validation_cb ct_validation_callback;
1278 /* User-supplied argument that is passed to the ct_validation_callback */
1279 void *ct_validation_callback_arg;
1281 * Consolidated stack of SCTs from all sources.
1282 * Lazily populated by CT_get_peer_scts(SSL*)
1284 STACK_OF(SCT) *scts;
1285 /* Have we attempted to find/parse SCTs yet? */
1288 SSL_CTX *session_ctx; /* initial ctx, used to store sessions */
1290 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1291 /* What's been chosen */
1292 SRTP_PROTECTION_PROFILE *srtp_profile;
1294 * 1 if we are renegotiating.
1295 * 2 if we are a server and are inside a handshake
1296 * (i.e. not just sending a HelloRequest)
1299 /* If sending a KeyUpdate is pending */
1301 # ifndef OPENSSL_NO_SRP
1302 /* ctx for SRP authentication */
1306 * Callback for disabling session caching and ticket support on a session
1307 * basis, depending on the chosen cipher.
1309 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1310 RECORD_LAYER rlayer;
1311 /* Default password callback. */
1312 pem_password_cb *default_passwd_callback;
1313 /* Default password callback user data. */
1314 void *default_passwd_callback_userdata;
1315 /* Async Job info */
1317 ASYNC_WAIT_CTX *waitctx;
1320 /* The maximum number of plaintext bytes that can be sent as early data */
1321 uint32_t max_early_data;
1323 * The number of bytes of early data received so far. If we accepted early
1324 * data then this is a count of the plaintext bytes. If we rejected it then
1325 * this is a count of the ciphertext bytes.
1327 uint32_t early_data_count;
1329 /* TLS1.3 padding callback */
1330 size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg);
1331 void *record_padding_arg;
1332 size_t block_padding;
1334 CRYPTO_RWLOCK *lock;
1338 * Structure containing table entry of values associated with the signature
1339 * algorithms (signature scheme) extension
1341 typedef struct sigalg_lookup_st {
1342 /* TLS 1.3 signature scheme name */
1344 /* Raw value used in extension */
1346 /* NID of hash algorithm */
1348 /* Index of hash algorithm */
1350 /* NID of signature algorithm */
1352 /* Index of signature algorithm */
1354 /* Combined hash and signature NID, if any */
1356 /* Required public key curve (ECDSA only) */
1360 typedef struct cert_pkey_st CERT_PKEY;
1362 typedef struct ssl3_state_st {
1364 size_t read_mac_secret_size;
1365 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1366 size_t write_mac_secret_size;
1367 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1368 unsigned char server_random[SSL3_RANDOM_SIZE];
1369 unsigned char client_random[SSL3_RANDOM_SIZE];
1370 /* flags for countermeasure against known-IV weakness */
1371 int need_empty_fragments;
1372 int empty_fragment_done;
1373 /* used during startup, digest all incoming/outgoing packets */
1374 BIO *handshake_buffer;
1376 * When handshake digest is determined, buffer is hashed and
1377 * freed and MD_CTX for the required digest is stored here.
1379 EVP_MD_CTX *handshake_dgst;
1381 * Set whenever an expected ChangeCipherSpec message is processed.
1382 * Unset when the peer's Finished message is received.
1383 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1385 int change_cipher_spec;
1389 * we allow one fatal and one warning alert to be outstanding, send close
1390 * alert via the warning alert
1393 unsigned char send_alert[2];
1395 * This flag is set when we should renegotiate ASAP, basically when there
1396 * is no more data in the read or write buffers
1399 int total_renegotiations;
1400 int num_renegotiations;
1401 int in_read_app_data;
1403 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1404 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1405 size_t finish_md_len;
1406 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1407 size_t peer_finish_md_len;
1408 size_t message_size;
1410 /* used to hold the new cipher we are going to use */
1411 const SSL_CIPHER *new_cipher;
1412 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1413 EVP_PKEY *pkey; /* holds short lived DH/ECDH key */
1415 /* used for certificate requests */
1417 /* Certificate types in certificate request message. */
1420 /* Certificate authorities list peer sent */
1421 STACK_OF(X509_NAME) *peer_ca_names;
1422 size_t key_block_length;
1423 unsigned char *key_block;
1424 const EVP_CIPHER *new_sym_enc;
1425 const EVP_MD *new_hash;
1426 int new_mac_pkey_type;
1427 size_t new_mac_secret_size;
1428 # ifndef OPENSSL_NO_COMP
1429 const SSL_COMP *new_compression;
1431 char *new_compression;
1434 /* Raw values of the cipher list from a client */
1435 unsigned char *ciphers_raw;
1436 size_t ciphers_rawlen;
1437 /* Temporary storage for premaster secret */
1440 # ifndef OPENSSL_NO_PSK
1441 /* Temporary storage for PSK key */
1445 /* Signature algorithm we actually use */
1446 const SIGALG_LOOKUP *sigalg;
1447 /* Pointer to certificate we use */
1450 * signature algorithms peer reports: e.g. supported signature
1451 * algorithms extension for server or as part of a certificate
1452 * request for client.
1454 uint16_t *peer_sigalgs;
1455 /* Size of above array */
1456 size_t peer_sigalgslen;
1457 /* Sigalg peer actualy uses */
1458 const SIGALG_LOOKUP *peer_sigalg;
1460 * Set if corresponding CERT_PKEY can be used with current
1461 * SSL session: e.g. appropriate curve, signature algorithms etc.
1462 * If zero it can't be used at all.
1464 uint32_t valid_flags[SSL_PKEY_NUM];
1466 * For servers the following masks are for the key and auth algorithms
1467 * that are supported by the certs below. For clients they are masks of
1468 * *disabled* algorithms based on the current session.
1473 * The following are used by the client to see if a cipher is allowed or
1474 * not. It contains the minimum and maximum version the client's using
1475 * based on what it knows so far.
1481 /* Connection binding to prevent renegotiation attacks */
1482 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1483 size_t previous_client_finished_len;
1484 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1485 size_t previous_server_finished_len;
1486 int send_connection_binding; /* TODOEKR */
1488 # ifndef OPENSSL_NO_NEXTPROTONEG
1490 * Set if we saw the Next Protocol Negotiation extension from our peer.
1496 * ALPN information (we are in the process of transitioning from NPN to
1501 * In a server these point to the selected ALPN protocol after the
1502 * ClientHello has been processed. In a client these contain the protocol
1503 * that the server selected once the ServerHello has been processed.
1505 unsigned char *alpn_selected;
1506 size_t alpn_selected_len;
1507 /* used by the server to know what options were proposed */
1508 unsigned char *alpn_proposed;
1509 size_t alpn_proposed_len;
1510 /* used by the client to know if it actually sent alpn */
1513 # ifndef OPENSSL_NO_EC
1515 * This is set to true if we believe that this is a version of Safari
1516 * running on OS X 10.6 or newer. We wish to know this because Safari on
1517 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1519 char is_probably_safari;
1520 # endif /* !OPENSSL_NO_EC */
1522 /* For clients: peer temporary key */
1523 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1524 /* The group_id for the DH/ECDH key */
1525 unsigned int group_id;
1531 /* DTLS structures */
1533 # ifndef OPENSSL_NO_SCTP
1534 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1537 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1538 # define DTLS1_MAX_MTU_OVERHEAD 48
1541 * Flag used in message reuse to indicate the buffer contains the record
1542 * header as well as the the handshake message header.
1544 # define DTLS1_SKIP_RECORD_HEADER 2
1546 struct dtls1_retransmit_state {
1547 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1548 EVP_MD_CTX *write_hash; /* used for mac generation */
1549 COMP_CTX *compress; /* compression */
1550 SSL_SESSION *session;
1551 unsigned short epoch;
1554 struct hm_header_st {
1560 unsigned int is_ccs;
1561 struct dtls1_retransmit_state saved_retransmit_state;
1564 struct dtls1_timeout_st {
1565 /* Number of read timeouts so far */
1566 unsigned int read_timeouts;
1567 /* Number of write timeouts so far */
1568 unsigned int write_timeouts;
1569 /* Number of alerts received so far */
1570 unsigned int num_alerts;
1573 typedef struct hm_fragment_st {
1574 struct hm_header_st msg_header;
1575 unsigned char *fragment;
1576 unsigned char *reassembly;
1579 typedef struct pqueue_st pqueue;
1580 typedef struct pitem_st pitem;
1583 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1588 typedef struct pitem_st *piterator;
1590 pitem *pitem_new(unsigned char *prio64be, void *data);
1591 void pitem_free(pitem *item);
1592 pqueue *pqueue_new(void);
1593 void pqueue_free(pqueue *pq);
1594 pitem *pqueue_insert(pqueue *pq, pitem *item);
1595 pitem *pqueue_peek(pqueue *pq);
1596 pitem *pqueue_pop(pqueue *pq);
1597 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1598 pitem *pqueue_iterator(pqueue *pq);
1599 pitem *pqueue_next(piterator *iter);
1600 size_t pqueue_size(pqueue *pq);
1602 typedef struct dtls1_state_st {
1603 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1605 unsigned int cookie_verified;
1606 /* handshake message numbers */
1607 unsigned short handshake_write_seq;
1608 unsigned short next_handshake_write_seq;
1609 unsigned short handshake_read_seq;
1610 /* Buffered handshake messages */
1611 pqueue *buffered_messages;
1612 /* Buffered (sent) handshake records */
1613 pqueue *sent_messages;
1614 size_t link_mtu; /* max on-the-wire DTLS packet size */
1615 size_t mtu; /* max DTLS packet size */
1616 struct hm_header_st w_msg_hdr;
1617 struct hm_header_st r_msg_hdr;
1618 struct dtls1_timeout_st timeout;
1620 * Indicates when the last handshake msg sent will timeout
1622 struct timeval next_timeout;
1623 /* Timeout duration */
1624 unsigned short timeout_duration;
1625 unsigned int retransmitting;
1626 # ifndef OPENSSL_NO_SCTP
1627 int shutdown_received;
1631 # ifndef OPENSSL_NO_EC
1633 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1635 # define EXPLICIT_PRIME_CURVE_TYPE 1
1636 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1637 # define NAMED_CURVE_TYPE 3
1638 # endif /* OPENSSL_NO_EC */
1640 struct cert_pkey_st {
1642 EVP_PKEY *privatekey;
1643 /* Chain for this certificate */
1644 STACK_OF(X509) *chain;
1646 * serverinfo data for this certificate. The data is in TLS Extension
1647 * wire format, specifically it's a series of records like:
1648 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1650 * uint8_t data[length];
1652 unsigned char *serverinfo;
1653 size_t serverinfo_length;
1655 /* Retrieve Suite B flags */
1656 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1657 /* Uses to check strict mode: suite B modes are always strict */
1658 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1659 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1662 ENDPOINT_CLIENT = 0,
1669 unsigned short ext_type;
1671 /* The context which this extension applies to */
1672 unsigned int context;
1674 * Per-connection flags relating to this extension type: not used if
1675 * part of an SSL_CTX structure.
1678 SSL_custom_ext_add_cb_ex add_cb;
1679 SSL_custom_ext_free_cb_ex free_cb;
1681 SSL_custom_ext_parse_cb_ex parse_cb;
1683 } custom_ext_method;
1685 /* ext_flags values */
1688 * Indicates an extension has been received. Used to check for unsolicited or
1689 * duplicate extensions.
1691 # define SSL_EXT_FLAG_RECEIVED 0x1
1693 * Indicates an extension has been sent: used to enable sending of
1694 * corresponding ServerHello extension.
1696 # define SSL_EXT_FLAG_SENT 0x2
1699 custom_ext_method *meths;
1701 } custom_ext_methods;
1703 typedef struct cert_st {
1704 /* Current active set */
1706 * ALWAYS points to an element of the pkeys array
1707 * Probably it would make more sense to store
1708 * an index, not a pointer.
1711 # ifndef OPENSSL_NO_DH
1713 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1716 /* Flags related to certificates */
1717 uint32_t cert_flags;
1718 CERT_PKEY pkeys[SSL_PKEY_NUM];
1719 /* Custom certificate types sent in certificate request message. */
1723 * supported signature algorithms. When set on a client this is sent in
1724 * the client hello as the supported signature algorithms extension. For
1725 * servers it represents the signature algorithms we are willing to use.
1727 uint16_t *conf_sigalgs;
1728 /* Size of above array */
1729 size_t conf_sigalgslen;
1731 * Client authentication signature algorithms, if not set then uses
1732 * conf_sigalgs. On servers these will be the signature algorithms sent
1733 * to the client in a certificate request for TLS 1.2. On a client this
1734 * represents the signature algorithms we are willing to use for client
1737 uint16_t *client_sigalgs;
1738 /* Size of above array */
1739 size_t client_sigalgslen;
1741 * Signature algorithms shared by client and server: cached because these
1742 * are used most often.
1744 const SIGALG_LOOKUP **shared_sigalgs;
1745 size_t shared_sigalgslen;
1747 * Certificate setup callback: if set is called whenever a certificate
1748 * may be required (client or server). the callback can then examine any
1749 * appropriate parameters and setup any certificates required. This
1750 * allows advanced applications to select certificates on the fly: for
1751 * example based on supported signature algorithms or curves.
1753 int (*cert_cb) (SSL *ssl, void *arg);
1756 * Optional X509_STORE for chain building or certificate validation If
1757 * NULL the parent SSL_CTX store is used instead.
1759 X509_STORE *chain_store;
1760 X509_STORE *verify_store;
1761 /* Custom extensions */
1762 custom_ext_methods custext;
1763 /* Security callback */
1764 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1765 void *other, void *ex);
1766 /* Security level */
1769 # ifndef OPENSSL_NO_PSK
1770 /* If not NULL psk identity hint to use for servers */
1771 char *psk_identity_hint;
1773 CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */
1774 CRYPTO_RWLOCK *lock;
1777 # define FP_ICC (int (*)(const void *,const void *))
1780 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1781 * of a mess of functions, but hell, think of it as an opaque structure :-)
1783 typedef struct ssl3_enc_method {
1784 int (*enc) (SSL *, SSL3_RECORD *, size_t, int);
1785 int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int);
1786 int (*setup_key_block) (SSL *);
1787 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1789 int (*change_cipher_state) (SSL *, int);
1790 size_t (*final_finish_mac) (SSL *, const char *, size_t, unsigned char *);
1791 const char *client_finished_label;
1792 size_t client_finished_label_len;
1793 const char *server_finished_label;
1794 size_t server_finished_label_len;
1795 int (*alert_value) (int);
1796 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1797 const char *, size_t,
1798 const unsigned char *, size_t,
1800 /* Various flags indicating protocol version requirements */
1802 /* Set the handshake header */
1803 int (*set_handshake_header) (SSL *s, WPACKET *pkt, int type);
1804 /* Close construction of the handshake message */
1805 int (*close_construct_packet) (SSL *s, WPACKET *pkt, int htype);
1806 /* Write out handshake message */
1807 int (*do_write) (SSL *s);
1810 # define ssl_set_handshake_header(s, pkt, htype) \
1811 s->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
1812 # define ssl_close_construct_packet(s, pkt, htype) \
1813 s->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
1814 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1816 /* Values for enc_flags */
1818 /* Uses explicit IV for CBC mode */
1819 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1820 /* Uses signature algorithms extension */
1821 # define SSL_ENC_FLAG_SIGALGS 0x2
1822 /* Uses SHA256 default PRF */
1823 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1825 # define SSL_ENC_FLAG_DTLS 0x8
1827 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1828 * apply to others in future.
1830 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1832 # ifndef OPENSSL_NO_COMP
1833 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1834 typedef struct ssl3_comp_st {
1835 int comp_id; /* The identifier byte for this compression
1837 char *name; /* Text name used for the compression type */
1838 COMP_METHOD *method; /* The method :-) */
1842 typedef enum downgrade_en {
1849 * Dummy status type for the status_type extension. Indicates no status type
1852 #define TLSEXT_STATUSTYPE_nothing -1
1854 /* Sigalgs values */
1855 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
1856 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
1857 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
1858 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303
1859 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203
1860 #define TLSEXT_SIGALG_rsa_pss_sha256 0x0804
1861 #define TLSEXT_SIGALG_rsa_pss_sha384 0x0805
1862 #define TLSEXT_SIGALG_rsa_pss_sha512 0x0806
1863 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
1864 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
1865 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
1866 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
1867 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
1868 #define TLSEXT_SIGALG_dsa_sha256 0x0402
1869 #define TLSEXT_SIGALG_dsa_sha384 0x0502
1870 #define TLSEXT_SIGALG_dsa_sha512 0x0602
1871 #define TLSEXT_SIGALG_dsa_sha224 0x0302
1872 #define TLSEXT_SIGALG_dsa_sha1 0x0202
1873 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
1874 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
1875 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
1877 /* Known PSK key exchange modes */
1878 #define TLSEXT_KEX_MODE_KE 0x00
1879 #define TLSEXT_KEX_MODE_KE_DHE 0x01
1882 * Internal representations of key exchange modes
1884 #define TLSEXT_KEX_MODE_FLAG_NONE 0
1885 #define TLSEXT_KEX_MODE_FLAG_KE 1
1886 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
1888 /* An invalid index into the TLSv1.3 PSK identities */
1889 #define TLSEXT_PSK_BAD_IDENTITY -1
1891 #define SSL_USE_PSS(s) (s->s3->tmp.peer_sigalg != NULL && \
1892 s->s3->tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
1894 /* A dummy signature value not valid for TLSv1.2 signature algs */
1895 #define TLSEXT_signature_rsa_pss 0x0101
1897 /* TLSv1.3 downgrade protection sentinel values */
1898 extern const unsigned char tls11downgrade[8];
1899 extern const unsigned char tls12downgrade[8];
1901 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1903 __owur const SSL_METHOD *ssl_bad_method(int ver);
1904 __owur const SSL_METHOD *sslv3_method(void);
1905 __owur const SSL_METHOD *sslv3_server_method(void);
1906 __owur const SSL_METHOD *sslv3_client_method(void);
1907 __owur const SSL_METHOD *tlsv1_method(void);
1908 __owur const SSL_METHOD *tlsv1_server_method(void);
1909 __owur const SSL_METHOD *tlsv1_client_method(void);
1910 __owur const SSL_METHOD *tlsv1_1_method(void);
1911 __owur const SSL_METHOD *tlsv1_1_server_method(void);
1912 __owur const SSL_METHOD *tlsv1_1_client_method(void);
1913 __owur const SSL_METHOD *tlsv1_2_method(void);
1914 __owur const SSL_METHOD *tlsv1_2_server_method(void);
1915 __owur const SSL_METHOD *tlsv1_2_client_method(void);
1916 __owur const SSL_METHOD *tlsv1_3_method(void);
1917 __owur const SSL_METHOD *tlsv1_3_server_method(void);
1918 __owur const SSL_METHOD *tlsv1_3_client_method(void);
1919 __owur const SSL_METHOD *dtlsv1_method(void);
1920 __owur const SSL_METHOD *dtlsv1_server_method(void);
1921 __owur const SSL_METHOD *dtlsv1_client_method(void);
1922 __owur const SSL_METHOD *dtls_bad_ver_client_method(void);
1923 __owur const SSL_METHOD *dtlsv1_2_method(void);
1924 __owur const SSL_METHOD *dtlsv1_2_server_method(void);
1925 __owur const SSL_METHOD *dtlsv1_2_client_method(void);
1927 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1928 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1929 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1930 extern const SSL3_ENC_METHOD TLSv1_3_enc_data;
1931 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1932 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1933 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1936 * Flags for SSL methods
1938 # define SSL_METHOD_NO_FIPS (1U<<0)
1939 # define SSL_METHOD_NO_SUITEB (1U<<1)
1941 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1942 s_connect, enc_data) \
1943 const SSL_METHOD *func_name(void) \
1945 static const SSL_METHOD func_name##_data= { \
1959 ssl3_renegotiate_check, \
1962 ssl3_dispatch_alert, \
1965 ssl3_get_cipher_by_char, \
1966 ssl3_put_cipher_by_char, \
1970 tls1_default_timeout, \
1972 ssl_undefined_void_function, \
1973 ssl3_callback_ctrl, \
1974 ssl3_ctx_callback_ctrl, \
1976 return &func_name##_data; \
1979 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
1980 const SSL_METHOD *func_name(void) \
1982 static const SSL_METHOD func_name##_data= { \
1984 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1996 ssl3_renegotiate_check, \
1999 ssl3_dispatch_alert, \
2002 ssl3_get_cipher_by_char, \
2003 ssl3_put_cipher_by_char, \
2007 ssl3_default_timeout, \
2009 ssl_undefined_void_function, \
2010 ssl3_callback_ctrl, \
2011 ssl3_ctx_callback_ctrl, \
2013 return &func_name##_data; \
2016 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
2017 s_connect, enc_data) \
2018 const SSL_METHOD *func_name(void) \
2020 static const SSL_METHOD func_name##_data= { \
2034 ssl3_renegotiate_check, \
2036 dtls1_write_app_data_bytes, \
2037 dtls1_dispatch_alert, \
2040 ssl3_get_cipher_by_char, \
2041 ssl3_put_cipher_by_char, \
2045 dtls1_default_timeout, \
2047 ssl_undefined_void_function, \
2048 ssl3_callback_ctrl, \
2049 ssl3_ctx_callback_ctrl, \
2051 return &func_name##_data; \
2054 struct openssl_ssl_test_functions {
2055 int (*p_ssl_init_wbio_buffer) (SSL *s);
2056 int (*p_ssl3_setup_buffers) (SSL *s);
2059 const char *ssl_protocol_to_string(int version);
2061 /* Returns true if certificate and private key for 'idx' are present */
2062 static ossl_inline int ssl_has_cert(const SSL *s, int idx)
2064 if (idx < 0 || idx >= SSL_PKEY_NUM)
2066 return s->cert->pkeys[idx].x509 != NULL
2067 && s->cert->pkeys[idx].privatekey != NULL;
2070 # ifndef OPENSSL_UNIT_TEST
2072 __owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes);
2073 __owur int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written);
2074 void ssl_clear_cipher_ctx(SSL *s);
2075 int ssl_clear_bad_session(SSL *s);
2076 __owur CERT *ssl_cert_new(void);
2077 __owur CERT *ssl_cert_dup(CERT *cert);
2078 void ssl_cert_clear_certs(CERT *c);
2079 void ssl_cert_free(CERT *c);
2080 __owur int ssl_get_new_session(SSL *s, int session);
2081 __owur int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello, int *al);
2082 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
2083 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
2084 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
2085 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2086 const SSL_CIPHER *const *bp);
2087 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
2088 STACK_OF(SSL_CIPHER) **pref,
2089 STACK_OF(SSL_CIPHER)
2091 const char *rule_str,
2093 __owur int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites,
2094 int sslv2format, int *al);
2095 __owur int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,
2096 STACK_OF(SSL_CIPHER) **skp,
2097 STACK_OF(SSL_CIPHER) **scsvs, int sslv2format,
2099 void ssl_update_cache(SSL *s, int mode);
2100 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
2101 const EVP_MD **md, int *mac_pkey_type,
2102 size_t *mac_secret_size, SSL_COMP **comp,
2104 __owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead,
2105 size_t *int_overhead, size_t *blocksize,
2106 size_t *ext_overhead);
2107 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
2108 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl,
2109 const unsigned char *ptr,
2111 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
2112 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
2113 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
2114 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
2115 __owur int ssl_cert_select_current(CERT *c, X509 *x);
2116 __owur int ssl_cert_set_current(CERT *c, long arg);
2117 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
2118 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg);
2120 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
2121 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
2122 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain,
2125 __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other);
2126 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid,
2129 int ssl_undefined_function(SSL *s);
2130 __owur int ssl_undefined_void_function(void);
2131 __owur int ssl_undefined_const_function(const SSL *s);
2132 __owur int ssl_get_server_cert_serverinfo(SSL *s,
2133 const unsigned char **serverinfo,
2134 size_t *serverinfo_length);
2135 __owur int ssl_cert_type(const X509 *x, const EVP_PKEY *pkey);
2136 void ssl_set_masks(SSL *s);
2137 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
2138 __owur int ssl_verify_alarm_type(long type);
2139 void ssl_sort_cipher_list(void);
2140 int ssl_load_ciphers(void);
2141 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field,
2142 size_t len, DOWNGRADE dgrd);
2143 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
2145 __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm);
2146 __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey,
2148 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
2150 __owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id);
2151 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
2152 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt,
2154 int ssl3_init_finished_mac(SSL *s);
2155 __owur int ssl3_setup_key_block(SSL *s);
2156 __owur int ssl3_change_cipher_state(SSL *s, int which);
2157 void ssl3_cleanup_key_block(SSL *s);
2158 __owur int ssl3_do_write(SSL *s, int type);
2159 int ssl3_send_alert(SSL *s, int level, int desc);
2160 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
2161 unsigned char *p, size_t len,
2162 size_t *secret_size);
2163 __owur int ssl3_get_req_cert_type(SSL *s, WPACKET *pkt);
2164 __owur int ssl3_num_ciphers(void);
2165 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
2166 int ssl3_renegotiate(SSL *ssl);
2167 int ssl3_renegotiate_check(SSL *ssl, int initok);
2168 __owur int ssl3_dispatch_alert(SSL *s);
2169 __owur size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t slen,
2171 __owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len);
2172 void ssl3_free_digest_list(SSL *s);
2173 __owur unsigned long ssl3_output_cert_chain(SSL *s, WPACKET *pkt,
2174 CERT_PKEY *cpk, int *al);
2175 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
2176 STACK_OF(SSL_CIPHER) *clnt,
2177 STACK_OF(SSL_CIPHER) *srvr);
2178 __owur int ssl3_digest_cached_records(SSL *s, int keep);
2179 __owur int ssl3_new(SSL *s);
2180 void ssl3_free(SSL *s);
2181 __owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes);
2182 __owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes);
2183 __owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written);
2184 __owur int ssl3_shutdown(SSL *s);
2185 int ssl3_clear(SSL *s);
2186 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
2187 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
2188 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2189 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
2191 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
2192 __owur long ssl3_default_timeout(void);
2194 __owur int ssl3_set_handshake_header(SSL *s, WPACKET *pkt, int htype);
2195 __owur int tls_close_construct_packet(SSL *s, WPACKET *pkt, int htype);
2196 __owur int tls_setup_handshake(SSL *s);
2197 __owur int dtls1_set_handshake_header(SSL *s, WPACKET *pkt, int htype);
2198 __owur int dtls1_close_construct_packet(SSL *s, WPACKET *pkt, int htype);
2199 __owur int ssl3_handshake_write(SSL *s);
2201 __owur int ssl_allow_compression(SSL *s);
2203 __owur int ssl_version_supported(const SSL *s, int version);
2205 __owur int ssl_set_client_hello_version(SSL *s);
2206 __owur int ssl_check_version_downgrade(SSL *s);
2207 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
2208 __owur int ssl_choose_server_version(SSL *s, CLIENTHELLO_MSG *hello,
2210 __owur int ssl_choose_client_version(SSL *s, int version, int checkdgrd,
2212 int ssl_get_min_max_version(const SSL *s, int *min_version, int *max_version);
2214 __owur long tls1_default_timeout(void);
2215 __owur int dtls1_do_write(SSL *s, int type);
2216 void dtls1_set_message_header(SSL *s,
2219 size_t frag_off, size_t frag_len);
2221 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, size_t len,
2224 __owur int dtls1_read_failed(SSL *s, int code);
2225 __owur int dtls1_buffer_message(SSL *s, int ccs);
2226 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found);
2227 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
2228 int dtls1_retransmit_buffered_messages(SSL *s);
2229 void dtls1_clear_received_buffer(SSL *s);
2230 void dtls1_clear_sent_buffer(SSL *s);
2231 void dtls1_get_message_header(unsigned char *data,
2232 struct hm_header_st *msg_hdr);
2233 __owur long dtls1_default_timeout(void);
2234 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
2235 __owur int dtls1_check_timeout_num(SSL *s);
2236 __owur int dtls1_handle_timeout(SSL *s);
2237 void dtls1_start_timer(SSL *s);
2238 void dtls1_stop_timer(SSL *s);
2239 __owur int dtls1_is_timer_expired(SSL *s);
2240 void dtls1_double_timeout(SSL *s);
2241 __owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie,
2243 __owur int dtls1_send_newsession_ticket(SSL *s);
2244 __owur size_t dtls1_min_mtu(SSL *s);
2245 void dtls1_hm_fragment_free(hm_fragment *frag);
2246 __owur int dtls1_query_mtu(SSL *s);
2248 __owur int tls1_new(SSL *s);
2249 void tls1_free(SSL *s);
2250 int tls1_clear(SSL *s);
2251 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2252 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2254 __owur int dtls1_new(SSL *s);
2255 void dtls1_free(SSL *s);
2256 int dtls1_clear(SSL *s);
2257 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2258 __owur int dtls1_shutdown(SSL *s);
2260 __owur int dtls1_dispatch_alert(SSL *s);
2262 __owur int ssl_init_wbio_buffer(SSL *s);
2263 int ssl_free_wbio_buffer(SSL *s);
2265 __owur int tls1_change_cipher_state(SSL *s, int which);
2266 __owur int tls1_setup_key_block(SSL *s);
2267 __owur size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
2269 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
2270 unsigned char *p, size_t len,
2271 size_t *secret_size);
2272 __owur int tls13_setup_key_block(SSL *s);
2273 __owur size_t tls13_final_finish_mac(SSL *s, const char *str, size_t slen,
2275 __owur int tls13_change_cipher_state(SSL *s, int which);
2276 __owur int tls13_update_key(SSL *s, int send);
2277 __owur int tls13_hkdf_expand(SSL *s, const EVP_MD *md,
2278 const unsigned char *secret,
2279 const unsigned char *label, size_t labellen,
2280 const unsigned char *hash,
2281 unsigned char *out, size_t outlen);
2282 __owur int tls13_derive_key(SSL *s, const EVP_MD *md,
2283 const unsigned char *secret, unsigned char *key,
2285 __owur int tls13_derive_iv(SSL *s, const EVP_MD *md,
2286 const unsigned char *secret, unsigned char *iv,
2288 __owur int tls13_derive_finishedkey(SSL *s, const EVP_MD *md,
2289 const unsigned char *secret,
2290 unsigned char *fin, size_t finlen);
2291 int tls13_generate_secret(SSL *s, const EVP_MD *md,
2292 const unsigned char *prevsecret,
2293 const unsigned char *insecret,
2295 unsigned char *outsecret);
2296 __owur int tls13_generate_handshake_secret(SSL *s,
2297 const unsigned char *insecret,
2298 size_t insecretlen);
2299 __owur int tls13_generate_master_secret(SSL *s, unsigned char *out,
2300 unsigned char *prev, size_t prevlen,
2301 size_t *secret_size);
2302 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2303 const char *label, size_t llen,
2304 const unsigned char *p, size_t plen,
2306 __owur int tls1_alert_code(int code);
2307 __owur int tls13_alert_code(int code);
2308 __owur int ssl3_alert_code(int code);
2310 # ifndef OPENSSL_NO_EC
2311 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
2314 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2316 # ifndef OPENSSL_NO_EC
2317 /* Flags values from tls1_ec_curve_id2nid() */
2318 /* Mask for curve type */
2319 # define TLS_CURVE_TYPE 0x3
2320 # define TLS_CURVE_PRIME 0x0
2321 # define TLS_CURVE_CHAR2 0x1
2322 # define TLS_CURVE_CUSTOM 0x2
2324 #define bytestogroup(bytes) ((unsigned int)(bytes[0] << 8 | bytes[1]))
2326 __owur int tls1_ec_curve_id2nid(int curve_id, unsigned int *pflags);
2327 __owur int tls1_ec_nid2curve_id(int nid);
2328 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
2329 __owur int tls1_shared_group(SSL *s, int nmatch);
2330 __owur int tls1_set_groups(unsigned char **pext, size_t *pextlen,
2331 int *curves, size_t ncurves);
2332 __owur int tls1_set_groups_list(unsigned char **pext, size_t *pextlen,
2334 void tls1_get_formatlist(SSL *s, const unsigned char **pformats,
2335 size_t *num_formats);
2336 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
2337 __owur EVP_PKEY *ssl_generate_pkey_curve(int id);
2338 # endif /* OPENSSL_NO_EC */
2340 __owur int tls1_shared_list(SSL *s,
2341 const unsigned char *l1, size_t l1len,
2342 const unsigned char *l2, size_t l2len, int nmatch);
2343 __owur int tls_curve_allowed(SSL *s, const unsigned char *curve, int op);
2344 __owur int tls1_get_curvelist(SSL *s, int sess, const unsigned char **pcurves,
2345 size_t *num_curves);
2347 void ssl_set_default_md(SSL *s);
2348 __owur int tls1_set_server_sigalgs(SSL *s);
2350 /* Return codes for tls_get_ticket_from_client() and tls_decrypt_ticket() */
2351 typedef enum ticket_en {
2352 /* fatal error, malloc failure */
2353 TICKET_FATAL_ERR_MALLOC,
2354 /* fatal error, either from parsing or decrypting the ticket */
2355 TICKET_FATAL_ERR_OTHER,
2356 /* No ticket present */
2358 /* Empty ticket present */
2360 /* the ticket couldn't be decrypted */
2362 /* a ticket was successfully decrypted */
2364 /* same as above but the ticket needs to be reneewed */
2365 TICKET_SUCCESS_RENEW
2368 __owur TICKET_RETURN tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello,
2370 __owur TICKET_RETURN tls_decrypt_ticket(SSL *s, const unsigned char *etick,
2372 const unsigned char *sess_id,
2373 size_t sesslen, SSL_SESSION **psess);
2375 __owur int tls_use_ticket(SSL *s);
2377 void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
2379 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2380 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen,
2382 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2384 void tls1_set_cert_validity(SSL *s);
2386 # ifndef OPENSSL_NO_CT
2387 __owur int ssl_validate_ct(SSL *s);
2390 # ifndef OPENSSL_NO_DH
2391 __owur DH *ssl_get_auto_dh(SSL *s);
2394 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2395 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex,
2398 int tls_choose_sigalg(SSL *s, int *al);
2400 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2401 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2402 __owur long ssl_get_algorithm2(SSL *s);
2403 __owur int tls12_copy_sigalgs(SSL *s, WPACKET *pkt,
2404 const uint16_t *psig, size_t psiglen);
2405 __owur int tls1_save_sigalgs(SSL *s, PACKET *pkt);
2406 __owur int tls1_process_sigalgs(SSL *s);
2407 __owur int tls1_set_peer_legacy_sigalg(SSL *s, const EVP_PKEY *pkey);
2408 __owur size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs);
2409 __owur int tls12_check_peer_sigalg(SSL *s, uint16_t, EVP_PKEY *pkey);
2410 void ssl_set_client_disabled(SSL *s);
2411 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op, int echde);
2413 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
2415 __owur const EVP_MD *ssl_md(int idx);
2416 __owur const EVP_MD *ssl_handshake_md(SSL *s);
2417 __owur const EVP_MD *ssl_prf_md(SSL *s);
2420 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2421 * with |ssl|, if logging is enabled. It returns one on success and zero on
2422 * failure. The entry is identified by the first 8 bytes of
2423 * |encrypted_premaster|.
2425 __owur int ssl_log_rsa_client_key_exchange(SSL *ssl,
2426 const uint8_t *encrypted_premaster,
2427 size_t encrypted_premaster_len,
2428 const uint8_t *premaster,
2429 size_t premaster_len);
2432 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2433 * logging is available. It returns one on success and zero on failure. It tags
2434 * the entry with |label|.
2436 __owur int ssl_log_secret(SSL *ssl, const char *label,
2437 const uint8_t *secret, size_t secret_len);
2439 #define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2440 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
2441 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2442 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2443 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2444 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2447 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2448 __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2449 unsigned char *md_out,
2450 size_t *md_out_size,
2451 const unsigned char header[13],
2452 const unsigned char *data,
2453 size_t data_plus_mac_size,
2454 size_t data_plus_mac_plus_padding_size,
2455 const unsigned char *mac_secret,
2456 size_t mac_secret_length, char is_sslv3);
2458 __owur int srp_generate_server_master_secret(SSL *s);
2459 __owur int srp_generate_client_master_secret(SSL *s);
2460 __owur int srp_verify_server_param(SSL *s, int *al);
2462 /* statem/extensions_cust.c */
2464 custom_ext_method *custom_ext_find(const custom_ext_methods *exts,
2465 ENDPOINT role, unsigned int ext_type,
2468 void custom_ext_init(custom_ext_methods *meths);
2470 __owur int custom_ext_parse(SSL *s, unsigned int context, unsigned int ext_type,
2471 const unsigned char *ext_data, size_t ext_size,
2472 X509 *x, size_t chainidx, int *al);
2473 __owur int custom_ext_add(SSL *s, int context, WPACKET *pkt, X509 *x,
2474 size_t chainidx, int maxversion, int *al);
2476 __owur int custom_exts_copy(custom_ext_methods *dst,
2477 const custom_ext_methods *src);
2478 __owur int custom_exts_copy_flags(custom_ext_methods *dst,
2479 const custom_ext_methods *src);
2480 void custom_exts_free(custom_ext_methods *exts);
2482 void ssl_comp_free_compression_methods_int(void);
2484 # else /* OPENSSL_UNIT_TEST */
2486 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2487 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers