2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 * ECC cipher suite support in OpenSSL originally developed by
13 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
15 /* ====================================================================
16 * Copyright 2005 Nokia. All rights reserved.
18 * The portions of the attached software ("Contribution") is developed by
19 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
22 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
23 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
24 * support (see RFC 4279) to OpenSSL.
26 * No patent licenses or other rights except those expressly stated in
27 * the OpenSSL open source license shall be deemed granted or received
28 * expressly, by implication, estoppel, or otherwise.
30 * No assurances are provided by Nokia that the Contribution does not
31 * infringe the patent or other intellectual property rights of any third
32 * party or that the license provides you with all the necessary rights
33 * to make use of the Contribution.
35 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
36 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
37 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
38 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
42 #ifndef HEADER_SSL_LOCL_H
43 # define HEADER_SSL_LOCL_H
50 # if defined(__unix) || defined(__unix__)
51 # include <sys/time.h> /* struct timeval for DTLS */
54 # include <openssl/buffer.h>
55 # include <openssl/comp.h>
56 # include <openssl/bio.h>
57 # include <openssl/stack.h>
58 # include <openssl/rsa.h>
59 # include <openssl/dsa.h>
60 # include <openssl/err.h>
61 # include <openssl/ssl.h>
62 # include <openssl/async.h>
63 # include <openssl/symhacks.h>
64 # include <openssl/ct.h>
65 #include "record/record.h"
66 #include "statem/statem.h"
67 #include "packet_locl.h"
68 #include "internal/dane.h"
70 # ifdef OPENSSL_BUILD_SHLIBSSL
71 # undef OPENSSL_EXTERN
72 # define OPENSSL_EXTERN OPENSSL_EXPORT
77 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
78 l|=(((unsigned long)(*((c)++)))<< 8), \
79 l|=(((unsigned long)(*((c)++)))<<16), \
80 l|=(((unsigned long)(*((c)++)))<<24))
82 /* NOTE - c is not incremented as per c2l */
83 # define c2ln(c,l1,l2,n) { \
87 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
88 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
89 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
90 case 5: l2|=((unsigned long)(*(--(c)))); \
91 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
92 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
93 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
94 case 1: l1|=((unsigned long)(*(--(c)))); \
98 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
99 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
100 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
101 *((c)++)=(unsigned char)(((l)>>24)&0xff))
103 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
104 l|=((unsigned long)(*((c)++)))<<16, \
105 l|=((unsigned long)(*((c)++)))<< 8, \
106 l|=((unsigned long)(*((c)++))))
108 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
109 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
110 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
111 *((c)++)=(unsigned char)(((l) )&0xff))
113 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
114 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
115 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
116 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
117 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
118 *((c)++)=(unsigned char)(((l) )&0xff))
120 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
121 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
122 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
123 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
124 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
125 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
126 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
127 *((c)++)=(unsigned char)(((l) )&0xff))
129 /* NOTE - c is not incremented as per l2c */
130 # define l2cn(l1,l2,c,n) { \
133 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
134 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
135 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
136 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
137 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
138 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
139 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
140 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
144 # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
145 (((unsigned int)(c[1])) )),c+=2)
146 # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
147 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
149 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
150 (((unsigned long)(c[1]))<< 8)| \
151 (((unsigned long)(c[2])) )),c+=3)
153 # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
154 c[1]=(unsigned char)(((l)>> 8)&0xff), \
155 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
157 #define DTLS_VERSION_GT(v1, v2) ((v1) < (v2))
158 #define DTLS_VERSION_GE(v1, v2) ((v1) <= (v2))
159 #define DTLS_VERSION_LT(v1, v2) ((v1) > (v2))
160 #define DTLS_VERSION_LE(v1, v2) ((v1) >= (v2))
164 # define SSL_DECRYPT 0
165 # define SSL_ENCRYPT 1
167 # define TWO_BYTE_BIT 0x80
168 # define SEC_ESC_BIT 0x40
169 # define TWO_BYTE_MASK 0x7fff
170 # define THREE_BYTE_MASK 0x3fff
172 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
173 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
174 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
177 * Define the Bitmasks for SSL_CIPHER.algorithms.
178 * This bits are used packed as dense as possible. If new methods/ciphers
179 * etc will be added, the bits a likely to change, so this information
180 * is for internal library use only, even though SSL_CIPHER.algorithms
181 * can be publicly accessed.
182 * Use the according functions for cipher management instead.
184 * The bit mask handling in the selection and sorting scheme in
185 * ssl_create_cipher_list() has only limited capabilities, reflecting
186 * that the different entities within are mutually exclusive:
187 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
190 /* Bits for algorithm_mkey (key exchange algorithm) */
191 /* RSA key exchange */
192 # define SSL_kRSA 0x00000001U
193 /* tmp DH key no DH cert */
194 # define SSL_kDHE 0x00000002U
196 # define SSL_kEDH SSL_kDHE
198 # define SSL_kECDHE 0x00000004U
200 # define SSL_kEECDH SSL_kECDHE
202 # define SSL_kPSK 0x00000008U
203 /* GOST key exchange */
204 # define SSL_kGOST 0x00000010U
206 # define SSL_kSRP 0x00000020U
208 # define SSL_kRSAPSK 0x00000040U
209 # define SSL_kECDHEPSK 0x00000080U
210 # define SSL_kDHEPSK 0x00000100U
214 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
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
234 /* Bits for algorithm_enc (symmetric encryption) */
235 # define SSL_DES 0x00000001U
236 # define SSL_3DES 0x00000002U
237 # define SSL_RC4 0x00000004U
238 # define SSL_RC2 0x00000008U
239 # define SSL_IDEA 0x00000010U
240 # define SSL_eNULL 0x00000020U
241 # define SSL_AES128 0x00000040U
242 # define SSL_AES256 0x00000080U
243 # define SSL_CAMELLIA128 0x00000100U
244 # define SSL_CAMELLIA256 0x00000200U
245 # define SSL_eGOST2814789CNT 0x00000400U
246 # define SSL_SEED 0x00000800U
247 # define SSL_AES128GCM 0x00001000U
248 # define SSL_AES256GCM 0x00002000U
249 # define SSL_AES128CCM 0x00004000U
250 # define SSL_AES256CCM 0x00008000U
251 # define SSL_AES128CCM8 0x00010000U
252 # define SSL_AES256CCM8 0x00020000U
253 # define SSL_eGOST2814789CNT12 0x00040000U
254 # define SSL_CHACHA20POLY1305 0x00080000U
256 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
257 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
258 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
259 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
260 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
262 /* Bits for algorithm_mac (symmetric authentication) */
264 # define SSL_MD5 0x00000001U
265 # define SSL_SHA1 0x00000002U
266 # define SSL_GOST94 0x00000004U
267 # define SSL_GOST89MAC 0x00000008U
268 # define SSL_SHA256 0x00000010U
269 # define SSL_SHA384 0x00000020U
270 /* Not a real MAC, just an indication it is part of cipher */
271 # define SSL_AEAD 0x00000040U
272 # define SSL_GOST12_256 0x00000080U
273 # define SSL_GOST89MAC12 0x00000100U
274 # define SSL_GOST12_512 0x00000200U
277 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
278 * sure to update this constant too
281 # define SSL_MD_MD5_IDX 0
282 # define SSL_MD_SHA1_IDX 1
283 # define SSL_MD_GOST94_IDX 2
284 # define SSL_MD_GOST89MAC_IDX 3
285 # define SSL_MD_SHA256_IDX 4
286 # define SSL_MD_SHA384_IDX 5
287 # define SSL_MD_GOST12_256_IDX 6
288 # define SSL_MD_GOST89MAC12_IDX 7
289 # define SSL_MD_GOST12_512_IDX 8
290 # define SSL_MD_MD5_SHA1_IDX 9
291 # define SSL_MD_SHA224_IDX 10
292 # define SSL_MD_SHA512_IDX 11
293 # define SSL_MAX_DIGEST 12
295 /* Bits for algorithm2 (handshake digests and other extra flags) */
297 /* Bits 0-7 are handshake MAC */
298 # define SSL_HANDSHAKE_MAC_MASK 0xFF
299 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
300 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
301 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
302 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
303 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
304 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
305 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
307 /* Bits 8-15 bits are PRF */
308 # define TLS1_PRF_DGST_SHIFT 8
309 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
310 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
311 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
312 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
313 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
314 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
315 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
318 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
319 * goes into algorithm2)
321 # define TLS1_STREAM_MAC 0x10000
323 # define SSL_STRONG_MASK 0x0000001FU
324 # define SSL_DEFAULT_MASK 0X00000020U
326 # define SSL_STRONG_NONE 0x00000001U
327 # define SSL_LOW 0x00000002U
328 # define SSL_MEDIUM 0x00000004U
329 # define SSL_HIGH 0x00000008U
330 # define SSL_FIPS 0x00000010U
331 # define SSL_NOT_DEFAULT 0x00000020U
333 /* we have used 0000003f - 26 bits left to go */
335 /* Check if an SSL structure is using DTLS */
336 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
337 /* See if we need explicit IV */
338 # define SSL_USE_EXPLICIT_IV(s) \
339 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
341 * See if we use signature algorithms extension and signature algorithm
344 # define SSL_USE_SIGALGS(s) \
345 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
347 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
348 * apply to others in future.
350 # define SSL_USE_TLS1_2_CIPHERS(s) \
351 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
353 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
354 * flags because it may not be set to correct version yet.
356 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
357 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
358 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
360 * Determine if a client should send signature algorithms extension:
361 * as with TLS1.2 cipher we can't rely on method flags.
363 # define SSL_CLIENT_USE_SIGALGS(s) \
364 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
366 # ifdef TLSEXT_TYPE_encrypt_then_mac
367 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
369 # define SSL_USE_ETM(s) (0)
372 /* Mostly for SSLv3 */
373 # define SSL_PKEY_RSA_ENC 0
374 # define SSL_PKEY_RSA_SIGN 1
375 # define SSL_PKEY_DSA_SIGN 2
376 # define SSL_PKEY_ECC 3
377 # define SSL_PKEY_GOST01 4
378 # define SSL_PKEY_GOST12_256 5
379 # define SSL_PKEY_GOST12_512 6
380 # define SSL_PKEY_NUM 7
382 * Pseudo-constant. GOST cipher suites can use different certs for 1
383 * SSL_CIPHER. So let's see which one we have in fact.
385 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
388 * SSL_kRSA <- RSA_ENC
389 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
390 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
391 * SSL_aRSA <- RSA_ENC | RSA_SIGN
392 * SSL_aDSS <- DSA_SIGN
396 #define CERT_INVALID 0
397 #define CERT_PUBLIC_KEY 1
398 #define CERT_PRIVATE_KEY 2
402 /* CipherSuite length. SSLv3 and all TLS versions. */
403 #define TLS_CIPHER_LEN 2
404 /* used to hold info on the particular ciphers used */
405 struct ssl_cipher_st
{
407 const char *name
; /* text name */
408 uint32_t id
; /* id, 4 bytes, first is version */
410 * changed in 1.0.0: these four used to be portions of a single value
413 uint32_t algorithm_mkey
; /* key exchange algorithm */
414 uint32_t algorithm_auth
; /* server authentication */
415 uint32_t algorithm_enc
; /* symmetric encryption */
416 uint32_t algorithm_mac
; /* symmetric authentication */
417 int min_tls
; /* minimum SSL/TLS protocol version */
418 int max_tls
; /* maximum SSL/TLS protocol version */
419 int min_dtls
; /* minimum DTLS protocol version */
420 int max_dtls
; /* maximum DTLS protocol version */
421 uint32_t algo_strength
; /* strength and export flags */
422 uint32_t algorithm2
; /* Extra flags */
423 int32_t strength_bits
; /* Number of bits really used */
424 uint32_t alg_bits
; /* Number of bits for algorithm */
427 /* Used to hold SSL/TLS functions */
428 struct ssl_method_st
{
432 int (*ssl_new
) (SSL
*s
);
433 void (*ssl_clear
) (SSL
*s
);
434 void (*ssl_free
) (SSL
*s
);
435 int (*ssl_accept
) (SSL
*s
);
436 int (*ssl_connect
) (SSL
*s
);
437 int (*ssl_read
) (SSL
*s
, void *buf
, int len
);
438 int (*ssl_peek
) (SSL
*s
, void *buf
, int len
);
439 int (*ssl_write
) (SSL
*s
, const void *buf
, int len
);
440 int (*ssl_shutdown
) (SSL
*s
);
441 int (*ssl_renegotiate
) (SSL
*s
);
442 int (*ssl_renegotiate_check
) (SSL
*s
);
443 int (*ssl_read_bytes
) (SSL
*s
, int type
, int *recvd_type
,
444 unsigned char *buf
, int len
, int peek
);
445 int (*ssl_write_bytes
) (SSL
*s
, int type
, const void *buf_
, int len
);
446 int (*ssl_dispatch_alert
) (SSL
*s
);
447 long (*ssl_ctrl
) (SSL
*s
, int cmd
, long larg
, void *parg
);
448 long (*ssl_ctx_ctrl
) (SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
);
449 const SSL_CIPHER
*(*get_cipher_by_char
) (const unsigned char *ptr
);
450 int (*put_cipher_by_char
) (const SSL_CIPHER
*cipher
, unsigned char *ptr
);
451 int (*ssl_pending
) (const SSL
*s
);
452 int (*num_ciphers
) (void);
453 const SSL_CIPHER
*(*get_cipher
) (unsigned ncipher
);
454 long (*get_timeout
) (void);
455 const struct ssl3_enc_method
*ssl3_enc
; /* Extra SSLv3/TLS stuff */
456 int (*ssl_version
) (void);
457 long (*ssl_callback_ctrl
) (SSL
*s
, int cb_id
, void (*fp
) (void));
458 long (*ssl_ctx_callback_ctrl
) (SSL_CTX
*s
, int cb_id
, void (*fp
) (void));
462 * Lets make this into an ASN.1 type structure as follows
463 * SSL_SESSION_ID ::= SEQUENCE {
464 * version INTEGER, -- structure version number
465 * SSLversion INTEGER, -- SSL version number
466 * Cipher OCTET STRING, -- the 3 byte cipher ID
467 * Session_ID OCTET STRING, -- the Session ID
468 * Master_key OCTET STRING, -- the master key
469 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
470 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
471 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
472 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
473 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
474 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
475 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
476 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
477 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
478 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
479 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
480 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
481 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
482 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
484 * Look in ssl/ssl_asn1.c for more details
485 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
487 struct ssl_session_st
{
488 int ssl_version
; /* what ssl version session info is being
490 int master_key_length
;
491 unsigned char master_key
[SSL_MAX_MASTER_KEY_LENGTH
];
492 /* session_id - valid? */
493 unsigned int session_id_length
;
494 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
496 * this is used to determine whether the session is being reused in the
497 * appropriate context. It is up to the application to set this, via
500 unsigned int sid_ctx_length
;
501 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
502 # ifndef OPENSSL_NO_PSK
503 char *psk_identity_hint
;
507 * Used to indicate that session resumption is not allowed. Applications
508 * can also set this bit for a new session via not_resumable_session_cb
509 * to disable session caching and tickets.
512 /* This is the cert and type for the other end. */
515 /* Certificate chain peer sent */
516 STACK_OF(X509
) *peer_chain
;
518 * when app_verify_callback accepts a session where the peer's
519 * certificate is not ok, we must remember the error for session reuse:
521 long verify_result
; /* only for servers */
525 unsigned int compress_meth
; /* Need to lookup the method */
526 const SSL_CIPHER
*cipher
;
527 unsigned long cipher_id
; /* when ASN.1 loaded, this needs to be used
528 * to load the 'cipher' structure */
529 STACK_OF(SSL_CIPHER
) *ciphers
; /* shared ciphers? */
530 CRYPTO_EX_DATA ex_data
; /* application specific data */
532 * These are used to make removal of session-ids more efficient and to
533 * implement a maximum cache size.
535 struct ssl_session_st
*prev
, *next
;
536 char *tlsext_hostname
;
537 # ifndef OPENSSL_NO_EC
538 size_t tlsext_ecpointformatlist_length
;
539 unsigned char *tlsext_ecpointformatlist
; /* peer's list */
540 size_t tlsext_ellipticcurvelist_length
;
541 unsigned char *tlsext_ellipticcurvelist
; /* peer's list */
542 # endif /* OPENSSL_NO_EC */
544 unsigned char *tlsext_tick
; /* Session ticket */
545 size_t tlsext_ticklen
; /* Session ticket length */
546 unsigned long tlsext_tick_lifetime_hint
; /* Session lifetime hint in seconds */
547 # ifndef OPENSSL_NO_SRP
554 /* Extended master secret support */
555 # define SSL_SESS_FLAG_EXTMS 0x1
558 # ifndef OPENSSL_NO_SRP
560 typedef struct srp_ctx_st
{
561 /* param for all the callbacks */
563 /* set client Hello login callback */
564 int (*TLS_ext_srp_username_callback
) (SSL
*, int *, void *);
565 /* set SRP N/g param callback for verification */
566 int (*SRP_verify_param_callback
) (SSL
*, void *);
567 /* set SRP client passwd callback */
568 char *(*SRP_give_srp_client_pwd_callback
) (SSL
*, void *);
570 BIGNUM
*N
, *g
, *s
, *B
, *A
;
574 unsigned long srp_Mask
;
585 DEFINE_LHASH_OF(SSL_SESSION
);
586 /* Needed in ssl_cert.c */
587 DEFINE_LHASH_OF(X509_NAME
);
589 #define TLSEXT_KEYNAME_LENGTH 16
592 const SSL_METHOD
*method
;
593 STACK_OF(SSL_CIPHER
) *cipher_list
;
594 /* same as above but sorted for lookup */
595 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
596 struct x509_store_st
/* X509_STORE */ *cert_store
;
597 LHASH_OF(SSL_SESSION
) *sessions
;
599 * Most session-ids that will be cached, default is
600 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
602 unsigned long session_cache_size
;
603 struct ssl_session_st
*session_cache_head
;
604 struct ssl_session_st
*session_cache_tail
;
606 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
607 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
608 * means only SSL_accept which cache SSL_SESSIONS.
610 uint32_t session_cache_mode
;
612 * If timeout is not 0, it is the default timeout value set when
613 * SSL_new() is called. This has been put in to make life easier to set
616 long session_timeout
;
618 * If this callback is not null, it will be called each time a session id
619 * is added to the cache. If this function returns 1, it means that the
620 * callback will do a SSL_SESSION_free() when it has finished using it.
621 * Otherwise, on 0, it means the callback has finished with it. If
622 * remove_session_cb is not null, it will be called when a session-id is
623 * removed from the cache. After the call, OpenSSL will
624 * SSL_SESSION_free() it.
626 int (*new_session_cb
) (struct ssl_st
*ssl
, SSL_SESSION
*sess
);
627 void (*remove_session_cb
) (struct ssl_ctx_st
*ctx
, SSL_SESSION
*sess
);
628 SSL_SESSION
*(*get_session_cb
) (struct ssl_st
*ssl
,
629 const unsigned char *data
, int len
,
632 int sess_connect
; /* SSL new conn - started */
633 int sess_connect_renegotiate
; /* SSL reneg - requested */
634 int sess_connect_good
; /* SSL new conne/reneg - finished */
635 int sess_accept
; /* SSL new accept - started */
636 int sess_accept_renegotiate
; /* SSL reneg - requested */
637 int sess_accept_good
; /* SSL accept/reneg - finished */
638 int sess_miss
; /* session lookup misses */
639 int sess_timeout
; /* reuse attempt on timeouted session */
640 int sess_cache_full
; /* session removed due to full cache */
641 int sess_hit
; /* session reuse actually done */
642 int sess_cb_hit
; /* session-id that was not in the cache was
643 * passed back via the callback. This
644 * indicates that the application is
645 * supplying session-id's from other
646 * processes - spooky :-) */
651 /* if defined, these override the X509_verify_cert() calls */
652 int (*app_verify_callback
) (X509_STORE_CTX
*, void *);
653 void *app_verify_arg
;
655 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
656 * ('app_verify_callback' was called with just one argument)
659 /* Default password callback. */
660 pem_password_cb
*default_passwd_callback
;
662 /* Default password callback user data. */
663 void *default_passwd_callback_userdata
;
665 /* get client cert callback */
666 int (*client_cert_cb
) (SSL
*ssl
, X509
**x509
, EVP_PKEY
**pkey
);
668 /* cookie generate callback */
669 int (*app_gen_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
670 unsigned int *cookie_len
);
672 /* verify cookie callback */
673 int (*app_verify_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
674 unsigned int cookie_len
);
676 CRYPTO_EX_DATA ex_data
;
678 const EVP_MD
*md5
; /* For SSLv3/TLSv1 'ssl3-md5' */
679 const EVP_MD
*sha1
; /* For SSLv3/TLSv1 'ssl3->sha1' */
681 STACK_OF(X509
) *extra_certs
;
682 STACK_OF(SSL_COMP
) *comp_methods
; /* stack of SSL_COMP, SSLv3/TLSv1 */
684 /* Default values used when no per-SSL value is defined follow */
686 /* used if SSL's info_callback is NULL */
687 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
689 /* what we put in client cert requests */
690 STACK_OF(X509_NAME
) *client_CA
;
693 * Default values to use in SSL structures follow (these are copied by
699 int min_proto_version
;
700 int max_proto_version
;
703 struct cert_st
/* CERT */ *cert
;
706 /* callback that allows applications to peek at protocol messages */
707 void (*msg_callback
) (int write_p
, int version
, int content_type
,
708 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
709 void *msg_callback_arg
;
711 uint32_t verify_mode
;
712 unsigned int sid_ctx_length
;
713 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
714 /* called 'verify_callback' in the SSL */
715 int (*default_verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
717 /* Default generate session ID callback. */
718 GEN_SESSION_CB generate_session_id
;
720 X509_VERIFY_PARAM
*param
;
724 # ifndef OPENSSL_NO_CT
725 CTLOG_STORE
*ctlog_store
; /* CT Log Store */
727 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
728 * If they are not, the connection should be aborted.
730 ssl_ct_validation_cb ct_validation_callback
;
731 void *ct_validation_callback_arg
;
735 * If we're using more than one pipeline how should we divide the data
736 * up between the pipes?
738 unsigned int split_send_fragment
;
740 * Maximum amount of data to send in one fragment. actual record size can
741 * be more than this due to padding and MAC overheads.
743 unsigned int max_send_fragment
;
745 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
746 unsigned int max_pipelines
;
748 /* The default read buffer length to use (0 means not set) */
749 size_t default_read_buf_len
;
751 # ifndef OPENSSL_NO_ENGINE
753 * Engine to pass requests for client certs to
755 ENGINE
*client_cert_engine
;
758 /* TLS extensions servername callback */
759 int (*tlsext_servername_callback
) (SSL
*, int *, void *);
760 void *tlsext_servername_arg
;
761 /* RFC 4507 session ticket keys */
762 unsigned char tlsext_tick_key_name
[TLSEXT_KEYNAME_LENGTH
];
763 unsigned char tlsext_tick_hmac_key
[32];
764 unsigned char tlsext_tick_aes_key
[32];
765 /* Callback to support customisation of ticket key setting */
766 int (*tlsext_ticket_key_cb
) (SSL
*ssl
,
767 unsigned char *name
, unsigned char *iv
,
768 EVP_CIPHER_CTX
*ectx
,
769 HMAC_CTX
*hctx
, int enc
);
771 /* certificate status request info */
772 /* Callback for status request */
773 int (*tlsext_status_cb
) (SSL
*ssl
, void *arg
);
774 void *tlsext_status_arg
;
776 # ifndef OPENSSL_NO_PSK
777 unsigned int (*psk_client_callback
) (SSL
*ssl
, const char *hint
,
779 unsigned int max_identity_len
,
781 unsigned int max_psk_len
);
782 unsigned int (*psk_server_callback
) (SSL
*ssl
, const char *identity
,
784 unsigned int max_psk_len
);
787 # ifndef OPENSSL_NO_SRP
788 SRP_CTX srp_ctx
; /* ctx for SRP authentication */
791 # ifndef OPENSSL_NO_NEXTPROTONEG
792 /* Next protocol negotiation information */
795 * For a server, this contains a callback function by which the set of
796 * advertised protocols can be provided.
798 int (*next_protos_advertised_cb
) (SSL
*s
, const unsigned char **buf
,
799 unsigned int *len
, void *arg
);
800 void *next_protos_advertised_cb_arg
;
802 * For a client, this contains a callback function that selects the next
803 * protocol from the list provided by the server.
805 int (*next_proto_select_cb
) (SSL
*s
, unsigned char **out
,
806 unsigned char *outlen
,
807 const unsigned char *in
,
808 unsigned int inlen
, void *arg
);
809 void *next_proto_select_cb_arg
;
813 * ALPN information (we are in the process of transitioning from NPN to
818 * For a server, this contains a callback function that allows the
819 * server to select the protocol for the connection.
820 * out: on successful return, this must point to the raw protocol
821 * name (without the length prefix).
822 * outlen: on successful return, this contains the length of |*out|.
823 * in: points to the client's list of supported protocols in
825 * inlen: the length of |in|.
827 int (*alpn_select_cb
) (SSL
*s
,
828 const unsigned char **out
,
829 unsigned char *outlen
,
830 const unsigned char *in
,
831 unsigned int inlen
, void *arg
);
832 void *alpn_select_cb_arg
;
835 * For a client, this contains the list of supported protocols in wire
838 unsigned char *alpn_client_proto_list
;
839 unsigned alpn_client_proto_list_len
;
841 /* Shared DANE context */
842 struct dane_ctx_st dane
;
844 /* SRTP profiles we are willing to do from RFC 5764 */
845 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
847 * Callback for disabling session caching and ticket support on a session
848 * basis, depending on the chosen cipher.
850 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
851 # ifndef OPENSSL_NO_EC
852 /* EC extension values inherited by SSL structure */
853 size_t tlsext_ecpointformatlist_length
;
854 unsigned char *tlsext_ecpointformatlist
;
855 size_t tlsext_ellipticcurvelist_length
;
856 unsigned char *tlsext_ellipticcurvelist
;
857 # endif /* OPENSSL_NO_EC */
859 /* ext status type used for CSR extension (OCSP Stapling) */
860 int tlsext_status_type
;
868 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
874 const SSL_METHOD
*method
;
876 * There are 2 BIO's even though they are normally both the same. This
877 * is so data can be read and written to different handlers
879 /* used by SSL_read */
881 /* used by SSL_write */
883 /* used during session-id reuse to concatenate messages */
886 * This holds a variable that indicates what we were doing when a 0 or -1
887 * is returned. This is needed for non-blocking IO so we know what
888 * request needs re-doing when in SSL_accept or SSL_connect
892 int (*handshake_func
) (SSL
*);
894 * Imagine that here's a boolean member "init" that is switched as soon
895 * as SSL_set_{accept/connect}_state is called for the first time, so
896 * that "state" and "handshake_func" are properly initialized. But as
897 * handshake_func is == 0 until then, we use this test instead of an
900 /* are we the server side? */
903 * Generate a new session or reuse an old one.
904 * NB: For servers, the 'new' session may actually be a previously
905 * cached session or even the previous session unless
906 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
909 /* don't send shutdown packets */
911 /* we have shut things down, 0x01 sent, 0x02 for received */
916 BUF_MEM
*init_buf
; /* buffer used during init */
917 void *init_msg
; /* pointer to handshake message body, set by
918 * ssl3_get_message() */
919 int init_num
; /* amount read/written */
920 int init_off
; /* amount read/written */
922 struct ssl3_state_st
*s3
; /* SSLv3 variables */
923 struct dtls1_state_st
*d1
; /* DTLSv1 variables */
925 /* callback that allows applications to peek at protocol messages */
926 void (*msg_callback
) (int write_p
, int version
, int content_type
,
927 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
928 void *msg_callback_arg
;
929 int hit
; /* reusing a previous session */
930 X509_VERIFY_PARAM
*param
;
932 /* Per connection DANE state */
936 STACK_OF(SSL_CIPHER
) *cipher_list
;
937 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
939 * These are the ones being used, the ones in SSL_SESSION are the ones to
940 * be 'copied' into these ones
943 EVP_CIPHER_CTX
*enc_read_ctx
; /* cryptographic state */
944 EVP_MD_CTX
*read_hash
; /* used for mac generation */
945 COMP_CTX
*compress
; /* compression */
946 COMP_CTX
*expand
; /* uncompress */
947 EVP_CIPHER_CTX
*enc_write_ctx
; /* cryptographic state */
948 EVP_MD_CTX
*write_hash
; /* used for mac generation */
951 /* This is used to hold the server certificate used */
952 struct cert_st
/* CERT */ *cert
;
954 * the session_id_context is used to ensure sessions are only reused in
955 * the appropriate context
957 unsigned int sid_ctx_length
;
958 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
959 /* This can also be in the session once a session is established */
960 SSL_SESSION
*session
;
961 /* Default generate session ID callback. */
962 GEN_SESSION_CB generate_session_id
;
965 * 0 don't care about verify failure.
966 * 1 fail if verify fails
968 uint32_t verify_mode
;
969 /* fail if callback returns 0 */
970 int (*verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
971 /* optional informational callback */
972 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
973 /* error bytes to be written */
977 # ifndef OPENSSL_NO_PSK
978 unsigned int (*psk_client_callback
) (SSL
*ssl
, const char *hint
,
980 unsigned int max_identity_len
,
982 unsigned int max_psk_len
);
983 unsigned int (*psk_server_callback
) (SSL
*ssl
, const char *identity
,
985 unsigned int max_psk_len
);
988 /* Verified chain of peer */
989 STACK_OF(X509
) *verified_chain
;
991 /* extra application data */
992 CRYPTO_EX_DATA ex_data
;
993 /* for server side, keep the list of CA_dn we can use */
994 STACK_OF(X509_NAME
) *client_CA
;
996 /* protocol behaviour */
1000 int min_proto_version
;
1001 int max_proto_version
;
1004 /* what was passed, used for SSLv3/TLS rollback check */
1008 * If we're using more than one pipeline how should we divide the data
1009 * up between the pipes?
1011 unsigned int split_send_fragment
;
1013 * Maximum amount of data to send in one fragment. actual record size can
1014 * be more than this due to padding and MAC overheads.
1016 unsigned int max_send_fragment
;
1018 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1019 unsigned int max_pipelines
;
1021 /* TLS extension debug callback */
1022 void (*tlsext_debug_cb
) (SSL
*s
, int client_server
, int type
,
1023 const unsigned char *data
, int len
, void *arg
);
1024 void *tlsext_debug_arg
;
1025 char *tlsext_hostname
;
1027 * no further mod of servername
1028 * 0 : call the servername extension callback.
1029 * 1 : prepare 2, allow last ack just after in server callback.
1030 * 2 : don't call servername callback, no ack in server hello
1032 int servername_done
;
1033 /* certificate status request info */
1034 /* Status type or -1 if no status type */
1035 int tlsext_status_type
;
1036 # ifndef OPENSSL_NO_CT
1038 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1039 * If they are not, the connection should be aborted.
1041 ssl_ct_validation_cb ct_validation_callback
;
1042 /* User-supplied argument tha tis passed to the ct_validation_callback */
1043 void *ct_validation_callback_arg
;
1045 * Consolidated stack of SCTs from all sources.
1046 * Lazily populated by CT_get_peer_scts(SSL*)
1048 STACK_OF(SCT
) *scts
;
1049 /* Raw extension data, if seen */
1050 unsigned char *tlsext_scts
;
1051 /* Length of raw extension data, if seen */
1052 uint16_t tlsext_scts_len
;
1053 /* Have we attempted to find/parse SCTs yet? */
1056 /* Expect OCSP CertificateStatus message */
1057 int tlsext_status_expected
;
1058 /* OCSP status request only */
1059 STACK_OF(OCSP_RESPID
) *tlsext_ocsp_ids
;
1060 X509_EXTENSIONS
*tlsext_ocsp_exts
;
1061 /* OCSP response received or to be sent */
1062 unsigned char *tlsext_ocsp_resp
;
1063 int tlsext_ocsp_resplen
;
1064 /* RFC4507 session ticket expected to be received or sent */
1065 int tlsext_ticket_expected
;
1066 # ifndef OPENSSL_NO_EC
1067 size_t tlsext_ecpointformatlist_length
;
1069 unsigned char *tlsext_ecpointformatlist
;
1070 size_t tlsext_ellipticcurvelist_length
;
1072 unsigned char *tlsext_ellipticcurvelist
;
1073 # endif /* OPENSSL_NO_EC */
1074 /* TLS Session Ticket extension override */
1075 TLS_SESSION_TICKET_EXT
*tlsext_session_ticket
;
1076 /* TLS Session Ticket extension callback */
1077 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb
;
1078 void *tls_session_ticket_ext_cb_arg
;
1079 /* TLS pre-shared secret session resumption */
1080 tls_session_secret_cb_fn tls_session_secret_cb
;
1081 void *tls_session_secret_cb_arg
;
1082 SSL_CTX
*initial_ctx
; /* initial ctx, used to store sessions */
1083 # ifndef OPENSSL_NO_NEXTPROTONEG
1085 * Next protocol negotiation. For the client, this is the protocol that
1086 * we sent in NextProtocol and is set when handling ServerHello
1087 * extensions. For a server, this is the client's selected_protocol from
1088 * NextProtocol and is set when handling the NextProtocol message, before
1089 * the Finished message.
1091 unsigned char *next_proto_negotiated
;
1092 unsigned char next_proto_negotiated_len
;
1094 # define session_ctx initial_ctx
1096 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1097 /* What's been chosen */
1098 SRTP_PROTECTION_PROFILE
*srtp_profile
;
1100 * Is use of the Heartbeat extension negotiated?
1103 * 2: enabled, but not allowed to send Requests
1105 unsigned int tlsext_heartbeat
;
1106 /* Indicates if a HeartbeatRequest is in flight */
1107 unsigned int tlsext_hb_pending
;
1108 /* HeartbeatRequest sequence number */
1109 unsigned int tlsext_hb_seq
;
1111 * For a client, this contains the list of supported protocols in wire
1114 unsigned char *alpn_client_proto_list
;
1115 unsigned alpn_client_proto_list_len
;
1118 * 1 if we are renegotiating.
1119 * 2 if we are a server and are inside a handshake
1120 * (i.e. not just sending a HelloRequest)
1123 # ifndef OPENSSL_NO_SRP
1124 /* ctx for SRP authentication */
1128 * Callback for disabling session caching and ticket support on a session
1129 * basis, depending on the chosen cipher.
1131 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1133 RECORD_LAYER rlayer
;
1135 /* Default password callback. */
1136 pem_password_cb
*default_passwd_callback
;
1138 /* Default password callback user data. */
1139 void *default_passwd_callback_userdata
;
1141 /* Async Job info */
1143 ASYNC_WAIT_CTX
*waitctx
;
1145 CRYPTO_RWLOCK
*lock
;
1149 typedef struct ssl3_state_st
{
1151 int read_mac_secret_size
;
1152 unsigned char read_mac_secret
[EVP_MAX_MD_SIZE
];
1153 int write_mac_secret_size
;
1154 unsigned char write_mac_secret
[EVP_MAX_MD_SIZE
];
1155 unsigned char server_random
[SSL3_RANDOM_SIZE
];
1156 unsigned char client_random
[SSL3_RANDOM_SIZE
];
1157 /* flags for countermeasure against known-IV weakness */
1158 int need_empty_fragments
;
1159 int empty_fragment_done
;
1160 /* used during startup, digest all incoming/outgoing packets */
1161 BIO
*handshake_buffer
;
1163 * When handshake digest is determined, buffer is hashed and
1164 * freed and MD_CTX for the required digest is stored here.
1166 EVP_MD_CTX
*handshake_dgst
;
1168 * Set whenever an expected ChangeCipherSpec message is processed.
1169 * Unset when the peer's Finished message is received.
1170 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1172 int change_cipher_spec
;
1176 * we allow one fatal and one warning alert to be outstanding, send close
1177 * alert via the warning alert
1180 unsigned char send_alert
[2];
1182 * This flag is set when we should renegotiate ASAP, basically when there
1183 * is no more data in the read or write buffers
1186 int total_renegotiations
;
1187 int num_renegotiations
;
1188 int in_read_app_data
;
1190 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1191 unsigned char finish_md
[EVP_MAX_MD_SIZE
* 2];
1193 unsigned char peer_finish_md
[EVP_MAX_MD_SIZE
* 2];
1194 int peer_finish_md_len
;
1195 unsigned long message_size
;
1197 /* used to hold the new cipher we are going to use */
1198 const SSL_CIPHER
*new_cipher
;
1199 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1200 EVP_PKEY
*pkey
; /* holds short lived DH/ECDH key */
1202 /* used for certificate requests */
1205 char ctype
[SSL3_CT_NUMBER
];
1206 STACK_OF(X509_NAME
) *ca_names
;
1207 int key_block_length
;
1208 unsigned char *key_block
;
1209 const EVP_CIPHER
*new_sym_enc
;
1210 const EVP_MD
*new_hash
;
1211 int new_mac_pkey_type
;
1212 int new_mac_secret_size
;
1213 # ifndef OPENSSL_NO_COMP
1214 const SSL_COMP
*new_compression
;
1216 char *new_compression
;
1219 /* Raw values of the cipher list from a client */
1220 unsigned char *ciphers_raw
;
1221 size_t ciphers_rawlen
;
1222 /* Temporary storage for premaster secret */
1225 #ifndef OPENSSL_NO_PSK
1226 /* Temporary storage for PSK key */
1231 * signature algorithms peer reports: e.g. supported signature
1232 * algorithms extension for server or as part of a certificate
1233 * request for client.
1235 unsigned char *peer_sigalgs
;
1236 /* Size of above array */
1237 size_t peer_sigalgslen
;
1238 /* Digest peer uses for signing */
1239 const EVP_MD
*peer_md
;
1240 /* Array of digests used for signing */
1241 const EVP_MD
*md
[SSL_PKEY_NUM
];
1243 * Set if corresponding CERT_PKEY can be used with current
1244 * SSL session: e.g. appropriate curve, signature algorithms etc.
1245 * If zero it can't be used at all.
1247 uint32_t valid_flags
[SSL_PKEY_NUM
];
1249 * For servers the following masks are for the key and auth algorithms
1250 * that are supported by the certs below. For clients they are masks of
1251 * *disabled* algorithms based on the current session.
1256 * The following are used by the client to see if a cipher is allowed or
1257 * not. It contains the minimum and maximum version the client's using
1258 * based on what it knows so far.
1264 /* Connection binding to prevent renegotiation attacks */
1265 unsigned char previous_client_finished
[EVP_MAX_MD_SIZE
];
1266 unsigned char previous_client_finished_len
;
1267 unsigned char previous_server_finished
[EVP_MAX_MD_SIZE
];
1268 unsigned char previous_server_finished_len
;
1269 int send_connection_binding
; /* TODOEKR */
1271 # ifndef OPENSSL_NO_NEXTPROTONEG
1273 * Set if we saw the Next Protocol Negotiation extension from our peer.
1275 int next_proto_neg_seen
;
1279 * ALPN information (we are in the process of transitioning from NPN to
1284 * In a server these point to the selected ALPN protocol after the
1285 * ClientHello has been processed. In a client these contain the protocol
1286 * that the server selected once the ServerHello has been processed.
1288 unsigned char *alpn_selected
;
1289 size_t alpn_selected_len
;
1290 /* used by the server to know what options were proposed */
1291 unsigned char *alpn_proposed
;
1292 size_t alpn_proposed_len
;
1293 /* used by the client to know if it actually sent alpn */
1296 # ifndef OPENSSL_NO_EC
1298 * This is set to true if we believe that this is a version of Safari
1299 * running on OS X 10.6 or newer. We wish to know this because Safari on
1300 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1302 char is_probably_safari
;
1303 # endif /* !OPENSSL_NO_EC */
1305 /* For clients: peer temporary key */
1306 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1313 /* DTLS structures */
1315 # ifndef OPENSSL_NO_SCTP
1316 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1319 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1320 # define DTLS1_MAX_MTU_OVERHEAD 48
1323 * Flag used in message reuse to indicate the buffer contains the record
1324 * header as well as the the handshake message header.
1326 # define DTLS1_SKIP_RECORD_HEADER 2
1328 struct dtls1_retransmit_state
{
1329 EVP_CIPHER_CTX
*enc_write_ctx
; /* cryptographic state */
1330 EVP_MD_CTX
*write_hash
; /* used for mac generation */
1331 COMP_CTX
*compress
; /* compression */
1332 SSL_SESSION
*session
;
1333 unsigned short epoch
;
1336 struct hm_header_st
{
1338 unsigned long msg_len
;
1340 unsigned long frag_off
;
1341 unsigned long frag_len
;
1342 unsigned int is_ccs
;
1343 struct dtls1_retransmit_state saved_retransmit_state
;
1346 struct dtls1_timeout_st
{
1347 /* Number of read timeouts so far */
1348 unsigned int read_timeouts
;
1349 /* Number of write timeouts so far */
1350 unsigned int write_timeouts
;
1351 /* Number of alerts received so far */
1352 unsigned int num_alerts
;
1355 typedef struct hm_fragment_st
{
1356 struct hm_header_st msg_header
;
1357 unsigned char *fragment
;
1358 unsigned char *reassembly
;
1361 typedef struct pqueue_st pqueue
;
1362 typedef struct pitem_st pitem
;
1365 unsigned char priority
[8]; /* 64-bit value in big-endian encoding */
1370 typedef struct pitem_st
*piterator
;
1372 pitem
*pitem_new(unsigned char *prio64be
, void *data
);
1373 void pitem_free(pitem
*item
);
1374 pqueue
* pqueue_new(void);
1375 void pqueue_free(pqueue
*pq
);
1376 pitem
*pqueue_insert(pqueue
*pq
, pitem
*item
);
1377 pitem
*pqueue_peek(pqueue
*pq
);
1378 pitem
*pqueue_pop(pqueue
*pq
);
1379 pitem
*pqueue_find(pqueue
*pq
, unsigned char *prio64be
);
1380 pitem
*pqueue_iterator(pqueue
*pq
);
1381 pitem
*pqueue_next(piterator
*iter
);
1382 int pqueue_size(pqueue
*pq
);
1384 typedef struct dtls1_state_st
{
1385 unsigned char cookie
[DTLS1_COOKIE_LENGTH
];
1386 unsigned int cookie_len
;
1387 unsigned int cookie_verified
;
1389 /* handshake message numbers */
1390 unsigned short handshake_write_seq
;
1391 unsigned short next_handshake_write_seq
;
1392 unsigned short handshake_read_seq
;
1394 /* Buffered handshake messages */
1395 pqueue
*buffered_messages
;
1396 /* Buffered (sent) handshake records */
1397 pqueue
*sent_messages
;
1399 unsigned int link_mtu
; /* max on-the-wire DTLS packet size */
1400 unsigned int mtu
; /* max DTLS packet size */
1401 struct hm_header_st w_msg_hdr
;
1402 struct hm_header_st r_msg_hdr
;
1403 struct dtls1_timeout_st timeout
;
1405 * Indicates when the last handshake msg or heartbeat sent will timeout
1407 struct timeval next_timeout
;
1408 /* Timeout duration */
1409 unsigned short timeout_duration
;
1411 unsigned int retransmitting
;
1412 # ifndef OPENSSL_NO_SCTP
1413 int shutdown_received
;
1419 # ifndef OPENSSL_NO_EC
1421 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1423 # define EXPLICIT_PRIME_CURVE_TYPE 1
1424 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1425 # define NAMED_CURVE_TYPE 3
1426 # endif /* OPENSSL_NO_EC */
1428 typedef struct cert_pkey_st
{
1430 EVP_PKEY
*privatekey
;
1431 /* Chain for this certificate */
1432 STACK_OF(X509
) *chain
;
1435 * serverinfo data for this certificate. The data is in TLS Extension
1436 * wire format, specifically it's a series of records like:
1437 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1439 * uint8_t data[length];
1441 unsigned char *serverinfo
;
1442 size_t serverinfo_length
;
1444 /* Retrieve Suite B flags */
1445 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1446 /* Uses to check strict mode: suite B modes are always strict */
1447 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1448 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1451 unsigned short ext_type
;
1453 * Per-connection flags relating to this extension type: not used if
1454 * part of an SSL_CTX structure.
1457 custom_ext_add_cb add_cb
;
1458 custom_ext_free_cb free_cb
;
1460 custom_ext_parse_cb parse_cb
;
1462 } custom_ext_method
;
1464 /* ext_flags values */
1467 * Indicates an extension has been received. Used to check for unsolicited or
1468 * duplicate extensions.
1470 # define SSL_EXT_FLAG_RECEIVED 0x1
1472 * Indicates an extension has been sent: used to enable sending of
1473 * corresponding ServerHello extension.
1475 # define SSL_EXT_FLAG_SENT 0x2
1478 custom_ext_method
*meths
;
1480 } custom_ext_methods
;
1482 typedef struct cert_st
{
1483 /* Current active set */
1485 * ALWAYS points to an element of the pkeys array
1486 * Probably it would make more sense to store
1487 * an index, not a pointer.
1490 # ifndef OPENSSL_NO_DH
1492 DH
*(*dh_tmp_cb
) (SSL
*ssl
, int is_export
, int keysize
);
1495 /* Flags related to certificates */
1496 uint32_t cert_flags
;
1497 CERT_PKEY pkeys
[SSL_PKEY_NUM
];
1499 * Certificate types (received or sent) in certificate request message.
1500 * On receive this is only set if number of certificate types exceeds
1503 unsigned char *ctypes
;
1506 * suppported signature algorithms. When set on a client this is sent in
1507 * the client hello as the supported signature algorithms extension. For
1508 * servers it represents the signature algorithms we are willing to use.
1510 unsigned char *conf_sigalgs
;
1511 /* Size of above array */
1512 size_t conf_sigalgslen
;
1514 * Client authentication signature algorithms, if not set then uses
1515 * conf_sigalgs. On servers these will be the signature algorithms sent
1516 * to the client in a cerificate request for TLS 1.2. On a client this
1517 * represents the signature algortithms we are willing to use for client
1520 unsigned char *client_sigalgs
;
1521 /* Size of above array */
1522 size_t client_sigalgslen
;
1524 * Signature algorithms shared by client and server: cached because these
1525 * are used most often.
1527 TLS_SIGALGS
*shared_sigalgs
;
1528 size_t shared_sigalgslen
;
1530 * Certificate setup callback: if set is called whenever a certificate
1531 * may be required (client or server). the callback can then examine any
1532 * appropriate parameters and setup any certificates required. This
1533 * allows advanced applications to select certificates on the fly: for
1534 * example based on supported signature algorithms or curves.
1536 int (*cert_cb
) (SSL
*ssl
, void *arg
);
1539 * Optional X509_STORE for chain building or certificate validation If
1540 * NULL the parent SSL_CTX store is used instead.
1542 X509_STORE
*chain_store
;
1543 X509_STORE
*verify_store
;
1544 /* Custom extension methods for server and client */
1545 custom_ext_methods cli_ext
;
1546 custom_ext_methods srv_ext
;
1547 /* Security callback */
1548 int (*sec_cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
1549 void *other
, void *ex
);
1550 /* Security level */
1553 #ifndef OPENSSL_NO_PSK
1554 /* If not NULL psk identity hint to use for servers */
1555 char *psk_identity_hint
;
1557 int references
; /* >1 only if SSL_copy_session_id is used */
1558 CRYPTO_RWLOCK
*lock
;
1561 /* Structure containing decoded values of signature algorithms extension */
1562 struct tls_sigalgs_st
{
1563 /* NID of hash algorithm */
1565 /* NID of signature algorithm */
1567 /* Combined hash and signature NID */
1568 int signandhash_nid
;
1569 /* Raw values used in extension */
1570 unsigned char rsign
;
1571 unsigned char rhash
;
1574 # define FP_ICC (int (*)(const void *,const void *))
1577 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1578 * of a mess of functions, but hell, think of it as an opaque structure :-)
1580 typedef struct ssl3_enc_method
{
1581 int (*enc
) (SSL
*, SSL3_RECORD
*, unsigned int, int);
1582 int (*mac
) (SSL
*, SSL3_RECORD
*, unsigned char *, int);
1583 int (*setup_key_block
) (SSL
*);
1584 int (*generate_master_secret
) (SSL
*, unsigned char *, unsigned char *,
1586 int (*change_cipher_state
) (SSL
*, int);
1587 int (*final_finish_mac
) (SSL
*, const char *, int, unsigned char *);
1588 int finish_mac_length
;
1589 const char *client_finished_label
;
1590 int client_finished_label_len
;
1591 const char *server_finished_label
;
1592 int server_finished_label_len
;
1593 int (*alert_value
) (int);
1594 int (*export_keying_material
) (SSL
*, unsigned char *, size_t,
1595 const char *, size_t,
1596 const unsigned char *, size_t,
1598 /* Various flags indicating protocol version requirements */
1600 /* Handshake header length */
1602 /* Set the handshake header */
1603 int (*set_handshake_header
) (SSL
*s
, int type
, unsigned long len
);
1604 /* Write out handshake message */
1605 int (*do_write
) (SSL
*s
);
1608 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1609 # define ssl_handshake_start(s) \
1610 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1611 # define ssl_set_handshake_header(s, htype, len) \
1612 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1613 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1615 /* Values for enc_flags */
1617 /* Uses explicit IV for CBC mode */
1618 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1619 /* Uses signature algorithms extension */
1620 # define SSL_ENC_FLAG_SIGALGS 0x2
1621 /* Uses SHA256 default PRF */
1622 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1624 # define SSL_ENC_FLAG_DTLS 0x8
1626 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1627 * apply to others in future.
1629 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1631 # ifndef OPENSSL_NO_COMP
1632 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1633 typedef struct ssl3_comp_st
{
1634 int comp_id
; /* The identifier byte for this compression
1636 char *name
; /* Text name used for the compression type */
1637 COMP_METHOD
*method
; /* The method :-) */
1641 extern SSL3_ENC_METHOD ssl3_undef_enc_method
;
1643 __owur
const SSL_METHOD
*ssl_bad_method(int ver
);
1644 __owur
const SSL_METHOD
*sslv3_method(void);
1645 __owur
const SSL_METHOD
*sslv3_server_method(void);
1646 __owur
const SSL_METHOD
*sslv3_client_method(void);
1647 __owur
const SSL_METHOD
*tlsv1_method(void);
1648 __owur
const SSL_METHOD
*tlsv1_server_method(void);
1649 __owur
const SSL_METHOD
*tlsv1_client_method(void);
1650 __owur
const SSL_METHOD
*tlsv1_1_method(void);
1651 __owur
const SSL_METHOD
*tlsv1_1_server_method(void);
1652 __owur
const SSL_METHOD
*tlsv1_1_client_method(void);
1653 __owur
const SSL_METHOD
*tlsv1_2_method(void);
1654 __owur
const SSL_METHOD
*tlsv1_2_server_method(void);
1655 __owur
const SSL_METHOD
*tlsv1_2_client_method(void);
1656 __owur
const SSL_METHOD
*dtlsv1_method(void);
1657 __owur
const SSL_METHOD
*dtlsv1_server_method(void);
1658 __owur
const SSL_METHOD
*dtlsv1_client_method(void);
1659 __owur
const SSL_METHOD
*dtlsv1_2_method(void);
1660 __owur
const SSL_METHOD
*dtlsv1_2_server_method(void);
1661 __owur
const SSL_METHOD
*dtlsv1_2_client_method(void);
1663 extern const SSL3_ENC_METHOD TLSv1_enc_data
;
1664 extern const SSL3_ENC_METHOD TLSv1_1_enc_data
;
1665 extern const SSL3_ENC_METHOD TLSv1_2_enc_data
;
1666 extern const SSL3_ENC_METHOD SSLv3_enc_data
;
1667 extern const SSL3_ENC_METHOD DTLSv1_enc_data
;
1668 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data
;
1671 * Flags for SSL methods
1673 #define SSL_METHOD_NO_FIPS (1U<<0)
1674 #define SSL_METHOD_NO_SUITEB (1U<<1)
1676 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1677 s_connect, enc_data) \
1678 const SSL_METHOD *func_name(void) \
1680 static const SSL_METHOD func_name##_data= { \
1694 ssl3_renegotiate_check, \
1697 ssl3_dispatch_alert, \
1700 ssl3_get_cipher_by_char, \
1701 ssl3_put_cipher_by_char, \
1705 tls1_default_timeout, \
1707 ssl_undefined_void_function, \
1708 ssl3_callback_ctrl, \
1709 ssl3_ctx_callback_ctrl, \
1711 return &func_name##_data; \
1714 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
1715 const SSL_METHOD *func_name(void) \
1717 static const SSL_METHOD func_name##_data= { \
1719 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1731 ssl3_renegotiate_check, \
1734 ssl3_dispatch_alert, \
1737 ssl3_get_cipher_by_char, \
1738 ssl3_put_cipher_by_char, \
1742 ssl3_default_timeout, \
1744 ssl_undefined_void_function, \
1745 ssl3_callback_ctrl, \
1746 ssl3_ctx_callback_ctrl, \
1748 return &func_name##_data; \
1751 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
1752 s_connect, enc_data) \
1753 const SSL_METHOD *func_name(void) \
1755 static const SSL_METHOD func_name##_data= { \
1769 ssl3_renegotiate_check, \
1771 dtls1_write_app_data_bytes, \
1772 dtls1_dispatch_alert, \
1775 ssl3_get_cipher_by_char, \
1776 ssl3_put_cipher_by_char, \
1780 dtls1_default_timeout, \
1782 ssl_undefined_void_function, \
1783 ssl3_callback_ctrl, \
1784 ssl3_ctx_callback_ctrl, \
1786 return &func_name##_data; \
1789 struct openssl_ssl_test_functions
{
1790 int (*p_ssl_init_wbio_buffer
) (SSL
*s
, int push
);
1791 int (*p_ssl3_setup_buffers
) (SSL
*s
);
1792 # ifndef OPENSSL_NO_HEARTBEATS
1793 int (*p_dtls1_process_heartbeat
) (SSL
*s
,
1794 unsigned char *p
, unsigned int length
);
1798 const char *ssl_protocol_to_string(int version
);
1800 # ifndef OPENSSL_UNIT_TEST
1802 void ssl_clear_cipher_ctx(SSL
*s
);
1803 int ssl_clear_bad_session(SSL
*s
);
1804 __owur CERT
*ssl_cert_new(void);
1805 __owur CERT
*ssl_cert_dup(CERT
*cert
);
1806 void ssl_cert_clear_certs(CERT
*c
);
1807 void ssl_cert_free(CERT
*c
);
1808 __owur
int ssl_get_new_session(SSL
*s
, int session
);
1809 __owur
int ssl_get_prev_session(SSL
*s
, const PACKET
*ext
,
1810 const PACKET
*session_id
);
1811 __owur SSL_SESSION
*ssl_session_dup(SSL_SESSION
*src
, int ticket
);
1812 __owur
int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
);
1813 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
1814 __owur
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1815 const SSL_CIPHER
*const *bp
);
1816 __owur
STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(const SSL_METHOD
*meth
,
1817 STACK_OF(SSL_CIPHER
) **pref
,
1818 STACK_OF(SSL_CIPHER
) **sorted
,
1819 const char *rule_str
, CERT
*c
);
1820 void ssl_update_cache(SSL
*s
, int mode
);
1821 __owur
int ssl_cipher_get_evp(const SSL_SESSION
*s
, const EVP_CIPHER
**enc
,
1822 const EVP_MD
**md
, int *mac_pkey_type
,
1823 int *mac_secret_size
, SSL_COMP
**comp
, int use_etm
);
1824 __owur
int ssl_cipher_get_cert_index(const SSL_CIPHER
*c
);
1825 __owur
const SSL_CIPHER
*ssl_get_cipher_by_char(SSL
*ssl
, const unsigned char *ptr
);
1826 __owur
int ssl_cert_set0_chain(SSL
*s
, SSL_CTX
*ctx
, STACK_OF(X509
) *chain
);
1827 __owur
int ssl_cert_set1_chain(SSL
*s
, SSL_CTX
*ctx
, STACK_OF(X509
) *chain
);
1828 __owur
int ssl_cert_add0_chain_cert(SSL
*s
, SSL_CTX
*ctx
, X509
*x
);
1829 __owur
int ssl_cert_add1_chain_cert(SSL
*s
, SSL_CTX
*ctx
, X509
*x
);
1830 __owur
int ssl_cert_select_current(CERT
*c
, X509
*x
);
1831 __owur
int ssl_cert_set_current(CERT
*c
, long arg
);
1832 __owur X509
*ssl_cert_get0_next_certificate(CERT
*c
, int first
);
1833 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
1836 __owur
int ssl_verify_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
);
1837 __owur
int ssl_add_cert_chain(SSL
*s
, CERT_PKEY
*cpk
, unsigned long *l
);
1838 __owur
int ssl_build_cert_chain(SSL
*s
, SSL_CTX
*ctx
, int flags
);
1839 __owur
int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
, int ref
);
1841 __owur
int ssl_security(const SSL
*s
, int op
, int bits
, int nid
, void *other
);
1842 __owur
int ssl_ctx_security(const SSL_CTX
*ctx
, int op
, int bits
, int nid
, void *other
);
1844 int ssl_undefined_function(SSL
*s
);
1845 __owur
int ssl_undefined_void_function(void);
1846 __owur
int ssl_undefined_const_function(const SSL
*s
);
1847 __owur CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
);
1848 __owur
int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
1849 size_t *serverinfo_length
);
1850 __owur EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*c
, const EVP_MD
**pmd
);
1851 __owur
int ssl_cert_type(X509
*x
, EVP_PKEY
*pkey
);
1852 void ssl_set_masks(SSL
*s
);
1853 __owur
STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
);
1854 __owur
int ssl_verify_alarm_type(long type
);
1855 void ssl_sort_cipher_list(void);
1856 void ssl_load_ciphers(void);
1857 __owur
int ssl_fill_hello_random(SSL
*s
, int server
, unsigned char *field
, int len
);
1858 __owur
int ssl_generate_master_secret(SSL
*s
, unsigned char *pms
, size_t pmslen
,
1860 __owur EVP_PKEY
*ssl_generate_pkey(EVP_PKEY
*pm
, int nid
);
1861 __owur
int ssl_derive(SSL
*s
, EVP_PKEY
*privkey
, EVP_PKEY
*pubkey
);
1862 __owur EVP_PKEY
*ssl_dh_to_pkey(DH
*dh
);
1864 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_char(const unsigned char *p
);
1865 __owur
int ssl3_put_cipher_by_char(const SSL_CIPHER
*c
, unsigned char *p
);
1866 void ssl3_init_finished_mac(SSL
*s
);
1867 __owur
int ssl3_setup_key_block(SSL
*s
);
1868 __owur
int ssl3_change_cipher_state(SSL
*s
, int which
);
1869 void ssl3_cleanup_key_block(SSL
*s
);
1870 __owur
int ssl3_do_write(SSL
*s
, int type
);
1871 int ssl3_send_alert(SSL
*s
, int level
, int desc
);
1872 __owur
int ssl3_generate_master_secret(SSL
*s
, unsigned char *out
,
1873 unsigned char *p
, int len
);
1874 __owur
int ssl3_get_req_cert_type(SSL
*s
, unsigned char *p
);
1875 __owur
int ssl3_num_ciphers(void);
1876 __owur
const SSL_CIPHER
*ssl3_get_cipher(unsigned int u
);
1877 int ssl3_renegotiate(SSL
*ssl
);
1878 int ssl3_renegotiate_check(SSL
*ssl
);
1879 __owur
int ssl3_dispatch_alert(SSL
*s
);
1880 __owur
int ssl3_final_finish_mac(SSL
*s
, const char *sender
, int slen
,
1882 void ssl3_finish_mac(SSL
*s
, const unsigned char *buf
, int len
);
1883 void ssl3_free_digest_list(SSL
*s
);
1884 __owur
unsigned long ssl3_output_cert_chain(SSL
*s
, CERT_PKEY
*cpk
);
1885 __owur
const SSL_CIPHER
*ssl3_choose_cipher(SSL
*ssl
,
1886 STACK_OF(SSL_CIPHER
) *clnt
,
1887 STACK_OF(SSL_CIPHER
) *srvr
);
1888 __owur
int ssl3_digest_cached_records(SSL
*s
, int keep
);
1889 __owur
int ssl3_new(SSL
*s
);
1890 void ssl3_free(SSL
*s
);
1891 __owur
int ssl3_read(SSL
*s
, void *buf
, int len
);
1892 __owur
int ssl3_peek(SSL
*s
, void *buf
, int len
);
1893 __owur
int ssl3_write(SSL
*s
, const void *buf
, int len
);
1894 __owur
int ssl3_shutdown(SSL
*s
);
1895 void ssl3_clear(SSL
*s
);
1896 __owur
long ssl3_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
1897 __owur
long ssl3_ctx_ctrl(SSL_CTX
*s
, int cmd
, long larg
, void *parg
);
1898 __owur
long ssl3_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
1899 __owur
long ssl3_ctx_callback_ctrl(SSL_CTX
*s
, int cmd
, void (*fp
) (void));
1901 __owur
int ssl3_do_change_cipher_spec(SSL
*ssl
);
1902 __owur
long ssl3_default_timeout(void);
1904 __owur
int ssl3_set_handshake_header(SSL
*s
, int htype
, unsigned long len
);
1905 __owur
int ssl3_handshake_write(SSL
*s
);
1907 __owur
int ssl_allow_compression(SSL
*s
);
1909 __owur
int ssl_version_supported(const SSL
*s
, int version
);
1911 __owur
int ssl_set_client_hello_version(SSL
*s
);
1912 __owur
int ssl_check_version_downgrade(SSL
*s
);
1913 __owur
int ssl_set_version_bound(int method_version
, int version
, int *bound
);
1914 __owur
int ssl_choose_server_version(SSL
*s
);
1915 __owur
int ssl_choose_client_version(SSL
*s
, int version
);
1916 int ssl_get_client_min_max_version(const SSL
*s
, int *min_version
, int *max_version
);
1918 __owur
long tls1_default_timeout(void);
1919 __owur
int dtls1_do_write(SSL
*s
, int type
);
1920 void dtls1_set_message_header(SSL
*s
,
1923 unsigned long frag_off
,
1924 unsigned long frag_len
);
1926 __owur
int dtls1_write_app_data_bytes(SSL
*s
, int type
, const void *buf
, int len
);
1928 __owur
int dtls1_read_failed(SSL
*s
, int code
);
1929 __owur
int dtls1_buffer_message(SSL
*s
, int ccs
);
1930 __owur
int dtls1_retransmit_message(SSL
*s
, unsigned short seq
, int *found
);
1931 __owur
int dtls1_get_queue_priority(unsigned short seq
, int is_ccs
);
1932 int dtls1_retransmit_buffered_messages(SSL
*s
);
1933 void dtls1_clear_record_buffer(SSL
*s
);
1934 void dtls1_get_message_header(unsigned char *data
,
1935 struct hm_header_st
*msg_hdr
);
1936 __owur
long dtls1_default_timeout(void);
1937 __owur
struct timeval
*dtls1_get_timeout(SSL
*s
, struct timeval
*timeleft
);
1938 __owur
int dtls1_check_timeout_num(SSL
*s
);
1939 __owur
int dtls1_handle_timeout(SSL
*s
);
1940 void dtls1_start_timer(SSL
*s
);
1941 void dtls1_stop_timer(SSL
*s
);
1942 __owur
int dtls1_is_timer_expired(SSL
*s
);
1943 void dtls1_double_timeout(SSL
*s
);
1944 __owur
unsigned int dtls_raw_hello_verify_request(unsigned char *buf
,
1945 unsigned char *cookie
,
1946 unsigned char cookie_len
);
1947 __owur
int dtls1_send_newsession_ticket(SSL
*s
);
1948 __owur
unsigned int dtls1_min_mtu(SSL
*s
);
1949 void dtls1_hm_fragment_free(hm_fragment
*frag
);
1950 __owur
int dtls1_query_mtu(SSL
*s
);
1952 __owur
int tls1_new(SSL
*s
);
1953 void tls1_free(SSL
*s
);
1954 void tls1_clear(SSL
*s
);
1955 long tls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
1956 long tls1_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
1958 __owur
int dtls1_new(SSL
*s
);
1959 void dtls1_free(SSL
*s
);
1960 void dtls1_clear(SSL
*s
);
1961 long dtls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
1962 __owur
int dtls1_shutdown(SSL
*s
);
1964 __owur
int dtls1_dispatch_alert(SSL
*s
);
1966 __owur
int ssl_init_wbio_buffer(SSL
*s
, int push
);
1967 void ssl_free_wbio_buffer(SSL
*s
);
1969 __owur
int tls1_change_cipher_state(SSL
*s
, int which
);
1970 __owur
int tls1_setup_key_block(SSL
*s
);
1971 __owur
int tls1_final_finish_mac(SSL
*s
,
1972 const char *str
, int slen
, unsigned char *p
);
1973 __owur
int tls1_generate_master_secret(SSL
*s
, unsigned char *out
,
1974 unsigned char *p
, int len
);
1975 __owur
int tls1_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1976 const char *label
, size_t llen
,
1977 const unsigned char *p
, size_t plen
,
1979 __owur
int tls1_alert_code(int code
);
1980 __owur
int ssl3_alert_code(int code
);
1981 __owur
int ssl_ok(SSL
*s
);
1983 # ifndef OPENSSL_NO_EC
1984 __owur
int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
);
1987 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
);
1989 # ifndef OPENSSL_NO_EC
1990 __owur
int tls1_ec_curve_id2nid(int curve_id
);
1991 __owur
int tls1_ec_nid2curve_id(int nid
);
1992 __owur
int tls1_check_curve(SSL
*s
, const unsigned char *p
, size_t len
);
1993 __owur
int tls1_shared_curve(SSL
*s
, int nmatch
);
1994 __owur
int tls1_set_curves(unsigned char **pext
, size_t *pextlen
,
1995 int *curves
, size_t ncurves
);
1996 __owur
int tls1_set_curves_list(unsigned char **pext
, size_t *pextlen
,
1998 __owur
int tls1_check_ec_tmp_key(SSL
*s
, unsigned long id
);
1999 # endif /* OPENSSL_NO_EC */
2001 __owur
int tls1_shared_list(SSL
*s
,
2002 const unsigned char *l1
, size_t l1len
,
2003 const unsigned char *l2
, size_t l2len
, int nmatch
);
2004 __owur
unsigned char *ssl_add_clienthello_tlsext(SSL
*s
, unsigned char *buf
,
2005 unsigned char *limit
, int *al
);
2006 __owur
unsigned char *ssl_add_serverhello_tlsext(SSL
*s
, unsigned char *buf
,
2007 unsigned char *limit
, int *al
);
2008 __owur
int ssl_parse_clienthello_tlsext(SSL
*s
, PACKET
*pkt
);
2009 void ssl_set_default_md(SSL
*s
);
2010 __owur
int tls1_set_server_sigalgs(SSL
*s
);
2011 __owur
int ssl_check_clienthello_tlsext_late(SSL
*s
);
2012 __owur
int ssl_parse_serverhello_tlsext(SSL
*s
, PACKET
*pkt
);
2013 __owur
int ssl_prepare_clienthello_tlsext(SSL
*s
);
2014 __owur
int ssl_prepare_serverhello_tlsext(SSL
*s
);
2016 # ifndef OPENSSL_NO_HEARTBEATS
2017 __owur
int dtls1_heartbeat(SSL
*s
);
2018 __owur
int dtls1_process_heartbeat(SSL
*s
, unsigned char *p
, unsigned int length
);
2021 __owur
int tls_check_serverhello_tlsext_early(SSL
*s
, const PACKET
*ext
,
2022 const PACKET
*session_id
,
2025 __owur
int tls12_get_sigandhash(unsigned char *p
, const EVP_PKEY
*pk
,
2027 __owur
int tls12_get_sigid(const EVP_PKEY
*pk
);
2028 __owur
const EVP_MD
*tls12_get_hash(unsigned char hash_alg
);
2029 void ssl_set_sig_mask(uint32_t *pmask_a
, SSL
*s
, int op
);
2031 __owur
int tls1_set_sigalgs_list(CERT
*c
, const char *str
, int client
);
2032 __owur
int tls1_set_sigalgs(CERT
*c
, const int *salg
, size_t salglen
, int client
);
2033 int tls1_check_chain(SSL
*s
, X509
*x
, EVP_PKEY
*pk
, STACK_OF(X509
) *chain
,
2035 void tls1_set_cert_validity(SSL
*s
);
2037 #ifndef OPENSSL_NO_CT
2038 __owur
int ssl_validate_ct(SSL
*s
);
2041 # ifndef OPENSSL_NO_DH
2042 __owur DH
*ssl_get_auto_dh(SSL
*s
);
2045 __owur
int ssl_security_cert(SSL
*s
, SSL_CTX
*ctx
, X509
*x
, int vfy
, int is_ee
);
2046 __owur
int ssl_security_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
, X509
*ex
, int vfy
);
2048 __owur EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
);
2049 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
);
2050 __owur
int ssl_add_serverhello_renegotiate_ext(SSL
*s
, unsigned char *p
, int *len
,
2052 __owur
int ssl_parse_serverhello_renegotiate_ext(SSL
*s
, PACKET
*pkt
,
2054 __owur
int ssl_add_clienthello_renegotiate_ext(SSL
*s
, unsigned char *p
, int *len
,
2056 __owur
int ssl_parse_clienthello_renegotiate_ext(SSL
*s
, PACKET
*pkt
, int *al
);
2057 __owur
long ssl_get_algorithm2(SSL
*s
);
2058 __owur
size_t tls12_copy_sigalgs(SSL
*s
, unsigned char *out
,
2059 const unsigned char *psig
, size_t psiglen
);
2060 __owur
int tls1_save_sigalgs(SSL
*s
, const unsigned char *data
, int dsize
);
2061 __owur
int tls1_process_sigalgs(SSL
*s
);
2062 __owur
size_t tls12_get_psigalgs(SSL
*s
, const unsigned char **psigs
);
2063 __owur
int tls12_check_peer_sigalg(const EVP_MD
**pmd
, SSL
*s
,
2064 const unsigned char *sig
, EVP_PKEY
*pkey
);
2065 void ssl_set_client_disabled(SSL
*s
);
2066 __owur
int ssl_cipher_disabled(SSL
*s
, const SSL_CIPHER
*c
, int op
);
2068 __owur
int ssl_add_clienthello_use_srtp_ext(SSL
*s
, unsigned char *p
, int *len
,
2070 __owur
int ssl_parse_clienthello_use_srtp_ext(SSL
*s
, PACKET
*pkt
, int *al
);
2071 __owur
int ssl_add_serverhello_use_srtp_ext(SSL
*s
, unsigned char *p
, int *len
,
2073 __owur
int ssl_parse_serverhello_use_srtp_ext(SSL
*s
, PACKET
*pkt
, int *al
);
2075 __owur
int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
);
2076 __owur
const EVP_MD
*ssl_md(int idx
);
2077 __owur
const EVP_MD
*ssl_handshake_md(SSL
*s
);
2078 __owur
const EVP_MD
*ssl_prf_md(SSL
*s
);
2081 __owur
char ssl3_cbc_record_digest_supported(const EVP_MD_CTX
*ctx
);
2082 __owur
int ssl3_cbc_digest_record(const EVP_MD_CTX
*ctx
,
2083 unsigned char *md_out
,
2084 size_t *md_out_size
,
2085 const unsigned char header
[13],
2086 const unsigned char *data
,
2087 size_t data_plus_mac_size
,
2088 size_t data_plus_mac_plus_padding_size
,
2089 const unsigned char *mac_secret
,
2090 unsigned mac_secret_length
, char is_sslv3
);
2092 void tls_fips_digest_extra(const EVP_CIPHER_CTX
*cipher_ctx
,
2093 EVP_MD_CTX
*mac_ctx
, const unsigned char *data
,
2094 size_t data_len
, size_t orig_len
);
2096 __owur
int srp_generate_server_master_secret(SSL
*s
);
2097 __owur
int srp_generate_client_master_secret(SSL
*s
);
2098 __owur
int srp_verify_server_param(SSL
*s
, int *al
);
2102 void custom_ext_init(custom_ext_methods
*meths
);
2104 __owur
int custom_ext_parse(SSL
*s
, int server
,
2105 unsigned int ext_type
,
2106 const unsigned char *ext_data
, size_t ext_size
, int *al
);
2107 __owur
int custom_ext_add(SSL
*s
, int server
,
2108 unsigned char **pret
, unsigned char *limit
, int *al
);
2110 __owur
int custom_exts_copy(custom_ext_methods
*dst
, const custom_ext_methods
*src
);
2111 void custom_exts_free(custom_ext_methods
*exts
);
2113 void ssl_comp_free_compression_methods_int(void);
2117 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2118 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2119 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat