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 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
368 /* Mostly for SSLv3 */
369 # define SSL_PKEY_RSA_ENC 0
370 # define SSL_PKEY_RSA_SIGN 1
371 # define SSL_PKEY_DSA_SIGN 2
372 # define SSL_PKEY_ECC 3
373 # define SSL_PKEY_GOST01 4
374 # define SSL_PKEY_GOST12_256 5
375 # define SSL_PKEY_GOST12_512 6
376 # define SSL_PKEY_NUM 7
378 * Pseudo-constant. GOST cipher suites can use different certs for 1
379 * SSL_CIPHER. So let's see which one we have in fact.
381 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
384 * SSL_kRSA <- RSA_ENC
385 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
386 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
387 * SSL_aRSA <- RSA_ENC | RSA_SIGN
388 * SSL_aDSS <- DSA_SIGN
392 #define CERT_INVALID 0
393 #define CERT_PUBLIC_KEY 1
394 #define CERT_PRIVATE_KEY 2
398 /* CipherSuite length. SSLv3 and all TLS versions. */
399 #define TLS_CIPHER_LEN 2
400 /* used to hold info on the particular ciphers used */
401 struct ssl_cipher_st {
403 const char *name; /* text name */
404 uint32_t id; /* id, 4 bytes, first is version */
406 * changed in 1.0.0: these four used to be portions of a single value
409 uint32_t algorithm_mkey; /* key exchange algorithm */
410 uint32_t algorithm_auth; /* server authentication */
411 uint32_t algorithm_enc; /* symmetric encryption */
412 uint32_t algorithm_mac; /* symmetric authentication */
413 int min_tls; /* minimum SSL/TLS protocol version */
414 int max_tls; /* maximum SSL/TLS protocol version */
415 int min_dtls; /* minimum DTLS protocol version */
416 int max_dtls; /* maximum DTLS protocol version */
417 uint32_t algo_strength; /* strength and export flags */
418 uint32_t algorithm2; /* Extra flags */
419 int32_t strength_bits; /* Number of bits really used */
420 uint32_t alg_bits; /* Number of bits for algorithm */
423 /* Used to hold SSL/TLS functions */
424 struct ssl_method_st {
428 int (*ssl_new) (SSL *s);
429 void (*ssl_clear) (SSL *s);
430 void (*ssl_free) (SSL *s);
431 int (*ssl_accept) (SSL *s);
432 int (*ssl_connect) (SSL *s);
433 int (*ssl_read) (SSL *s, void *buf, int len);
434 int (*ssl_peek) (SSL *s, void *buf, int len);
435 int (*ssl_write) (SSL *s, const void *buf, int len);
436 int (*ssl_shutdown) (SSL *s);
437 int (*ssl_renegotiate) (SSL *s);
438 int (*ssl_renegotiate_check) (SSL *s);
439 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
440 unsigned char *buf, int len, int peek);
441 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
442 int (*ssl_dispatch_alert) (SSL *s);
443 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
444 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
445 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
446 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
447 int (*ssl_pending) (const SSL *s);
448 int (*num_ciphers) (void);
449 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
450 long (*get_timeout) (void);
451 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
452 int (*ssl_version) (void);
453 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
454 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
458 * Lets make this into an ASN.1 type structure as follows
459 * SSL_SESSION_ID ::= SEQUENCE {
460 * version INTEGER, -- structure version number
461 * SSLversion INTEGER, -- SSL version number
462 * Cipher OCTET STRING, -- the 3 byte cipher ID
463 * Session_ID OCTET STRING, -- the Session ID
464 * Master_key OCTET STRING, -- the master key
465 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
466 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
467 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
468 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
469 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
470 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
471 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
472 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
473 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
474 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
475 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
476 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
477 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
478 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
480 * Look in ssl/ssl_asn1.c for more details
481 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
483 struct ssl_session_st {
484 int ssl_version; /* what ssl version session info is being
486 int master_key_length;
487 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
488 /* session_id - valid? */
489 unsigned int session_id_length;
490 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
492 * this is used to determine whether the session is being reused in the
493 * appropriate context. It is up to the application to set this, via
496 unsigned int sid_ctx_length;
497 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
498 # ifndef OPENSSL_NO_PSK
499 char *psk_identity_hint;
503 * Used to indicate that session resumption is not allowed. Applications
504 * can also set this bit for a new session via not_resumable_session_cb
505 * to disable session caching and tickets.
508 /* This is the cert and type for the other end. */
511 /* Certificate chain peer sent */
512 STACK_OF(X509) *peer_chain;
514 * when app_verify_callback accepts a session where the peer's
515 * certificate is not ok, we must remember the error for session reuse:
517 long verify_result; /* only for servers */
521 unsigned int compress_meth; /* Need to lookup the method */
522 const SSL_CIPHER *cipher;
523 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
524 * to load the 'cipher' structure */
525 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
526 CRYPTO_EX_DATA ex_data; /* application specific data */
528 * These are used to make removal of session-ids more efficient and to
529 * implement a maximum cache size.
531 struct ssl_session_st *prev, *next;
532 char *tlsext_hostname;
533 # ifndef OPENSSL_NO_EC
534 size_t tlsext_ecpointformatlist_length;
535 unsigned char *tlsext_ecpointformatlist; /* peer's list */
536 size_t tlsext_ellipticcurvelist_length;
537 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
538 # endif /* OPENSSL_NO_EC */
540 unsigned char *tlsext_tick; /* Session ticket */
541 size_t tlsext_ticklen; /* Session ticket length */
542 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
543 # ifndef OPENSSL_NO_SRP
550 /* Extended master secret support */
551 # define SSL_SESS_FLAG_EXTMS 0x1
554 # ifndef OPENSSL_NO_SRP
556 typedef struct srp_ctx_st {
557 /* param for all the callbacks */
559 /* set client Hello login callback */
560 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
561 /* set SRP N/g param callback for verification */
562 int (*SRP_verify_param_callback) (SSL *, void *);
563 /* set SRP client passwd callback */
564 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
566 BIGNUM *N, *g, *s, *B, *A;
570 unsigned long srp_Mask;
581 DEFINE_LHASH_OF(SSL_SESSION);
582 /* Needed in ssl_cert.c */
583 DEFINE_LHASH_OF(X509_NAME);
585 #define TLSEXT_KEYNAME_LENGTH 16
588 const SSL_METHOD *method;
589 STACK_OF(SSL_CIPHER) *cipher_list;
590 /* same as above but sorted for lookup */
591 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
592 struct x509_store_st /* X509_STORE */ *cert_store;
593 LHASH_OF(SSL_SESSION) *sessions;
595 * Most session-ids that will be cached, default is
596 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
598 unsigned long session_cache_size;
599 struct ssl_session_st *session_cache_head;
600 struct ssl_session_st *session_cache_tail;
602 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
603 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
604 * means only SSL_accept which cache SSL_SESSIONS.
606 uint32_t session_cache_mode;
608 * If timeout is not 0, it is the default timeout value set when
609 * SSL_new() is called. This has been put in to make life easier to set
612 long session_timeout;
614 * If this callback is not null, it will be called each time a session id
615 * is added to the cache. If this function returns 1, it means that the
616 * callback will do a SSL_SESSION_free() when it has finished using it.
617 * Otherwise, on 0, it means the callback has finished with it. If
618 * remove_session_cb is not null, it will be called when a session-id is
619 * removed from the cache. After the call, OpenSSL will
620 * SSL_SESSION_free() it.
622 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
623 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
624 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
625 const unsigned char *data, int len,
628 int sess_connect; /* SSL new conn - started */
629 int sess_connect_renegotiate; /* SSL reneg - requested */
630 int sess_connect_good; /* SSL new conne/reneg - finished */
631 int sess_accept; /* SSL new accept - started */
632 int sess_accept_renegotiate; /* SSL reneg - requested */
633 int sess_accept_good; /* SSL accept/reneg - finished */
634 int sess_miss; /* session lookup misses */
635 int sess_timeout; /* reuse attempt on timeouted session */
636 int sess_cache_full; /* session removed due to full cache */
637 int sess_hit; /* session reuse actually done */
638 int sess_cb_hit; /* session-id that was not in the cache was
639 * passed back via the callback. This
640 * indicates that the application is
641 * supplying session-id's from other
642 * processes - spooky :-) */
647 /* if defined, these override the X509_verify_cert() calls */
648 int (*app_verify_callback) (X509_STORE_CTX *, void *);
649 void *app_verify_arg;
651 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
652 * ('app_verify_callback' was called with just one argument)
655 /* Default password callback. */
656 pem_password_cb *default_passwd_callback;
658 /* Default password callback user data. */
659 void *default_passwd_callback_userdata;
661 /* get client cert callback */
662 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
664 /* cookie generate callback */
665 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
666 unsigned int *cookie_len);
668 /* verify cookie callback */
669 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
670 unsigned int cookie_len);
672 CRYPTO_EX_DATA ex_data;
674 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
675 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
677 STACK_OF(X509) *extra_certs;
678 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
680 /* Default values used when no per-SSL value is defined follow */
682 /* used if SSL's info_callback is NULL */
683 void (*info_callback) (const SSL *ssl, int type, int val);
685 /* what we put in client cert requests */
686 STACK_OF(X509_NAME) *client_CA;
689 * Default values to use in SSL structures follow (these are copied by
695 int min_proto_version;
696 int max_proto_version;
699 struct cert_st /* CERT */ *cert;
702 /* callback that allows applications to peek at protocol messages */
703 void (*msg_callback) (int write_p, int version, int content_type,
704 const void *buf, size_t len, SSL *ssl, void *arg);
705 void *msg_callback_arg;
707 uint32_t verify_mode;
708 unsigned int sid_ctx_length;
709 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
710 /* called 'verify_callback' in the SSL */
711 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
713 /* Default generate session ID callback. */
714 GEN_SESSION_CB generate_session_id;
716 X509_VERIFY_PARAM *param;
720 # ifndef OPENSSL_NO_CT
721 CTLOG_STORE *ctlog_store; /* CT Log Store */
723 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
724 * If they are not, the connection should be aborted.
726 ssl_ct_validation_cb ct_validation_callback;
727 void *ct_validation_callback_arg;
731 * If we're using more than one pipeline how should we divide the data
732 * up between the pipes?
734 unsigned int split_send_fragment;
736 * Maximum amount of data to send in one fragment. actual record size can
737 * be more than this due to padding and MAC overheads.
739 unsigned int max_send_fragment;
741 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
742 unsigned int max_pipelines;
744 /* The default read buffer length to use (0 means not set) */
745 size_t default_read_buf_len;
747 # ifndef OPENSSL_NO_ENGINE
749 * Engine to pass requests for client certs to
751 ENGINE *client_cert_engine;
754 /* TLS extensions servername callback */
755 int (*tlsext_servername_callback) (SSL *, int *, void *);
756 void *tlsext_servername_arg;
757 /* RFC 4507 session ticket keys */
758 unsigned char tlsext_tick_key_name[TLSEXT_KEYNAME_LENGTH];
759 unsigned char tlsext_tick_hmac_key[32];
760 unsigned char tlsext_tick_aes_key[32];
761 /* Callback to support customisation of ticket key setting */
762 int (*tlsext_ticket_key_cb) (SSL *ssl,
763 unsigned char *name, unsigned char *iv,
764 EVP_CIPHER_CTX *ectx,
765 HMAC_CTX *hctx, int enc);
767 /* certificate status request info */
768 /* Callback for status request */
769 int (*tlsext_status_cb) (SSL *ssl, void *arg);
770 void *tlsext_status_arg;
772 # ifndef OPENSSL_NO_PSK
773 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
775 unsigned int max_identity_len,
777 unsigned int max_psk_len);
778 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
780 unsigned int max_psk_len);
783 # ifndef OPENSSL_NO_SRP
784 SRP_CTX srp_ctx; /* ctx for SRP authentication */
787 # ifndef OPENSSL_NO_NEXTPROTONEG
788 /* Next protocol negotiation information */
791 * For a server, this contains a callback function by which the set of
792 * advertised protocols can be provided.
794 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
795 unsigned int *len, void *arg);
796 void *next_protos_advertised_cb_arg;
798 * For a client, this contains a callback function that selects the next
799 * protocol from the list provided by the server.
801 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
802 unsigned char *outlen,
803 const unsigned char *in,
804 unsigned int inlen, void *arg);
805 void *next_proto_select_cb_arg;
809 * ALPN information (we are in the process of transitioning from NPN to
814 * For a server, this contains a callback function that allows the
815 * server to select the protocol for the connection.
816 * out: on successful return, this must point to the raw protocol
817 * name (without the length prefix).
818 * outlen: on successful return, this contains the length of |*out|.
819 * in: points to the client's list of supported protocols in
821 * inlen: the length of |in|.
823 int (*alpn_select_cb) (SSL *s,
824 const unsigned char **out,
825 unsigned char *outlen,
826 const unsigned char *in,
827 unsigned int inlen, void *arg);
828 void *alpn_select_cb_arg;
831 * For a client, this contains the list of supported protocols in wire
834 unsigned char *alpn_client_proto_list;
835 unsigned alpn_client_proto_list_len;
837 /* Shared DANE context */
838 struct dane_ctx_st dane;
840 /* SRTP profiles we are willing to do from RFC 5764 */
841 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
843 * Callback for disabling session caching and ticket support on a session
844 * basis, depending on the chosen cipher.
846 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
847 # ifndef OPENSSL_NO_EC
848 /* EC extension values inherited by SSL structure */
849 size_t tlsext_ecpointformatlist_length;
850 unsigned char *tlsext_ecpointformatlist;
851 size_t tlsext_ellipticcurvelist_length;
852 unsigned char *tlsext_ellipticcurvelist;
853 # endif /* OPENSSL_NO_EC */
855 /* ext status type used for CSR extension (OCSP Stapling) */
856 int tlsext_status_type;
864 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
870 const SSL_METHOD *method;
872 * There are 2 BIO's even though they are normally both the same. This
873 * is so data can be read and written to different handlers
875 /* used by SSL_read */
877 /* used by SSL_write */
879 /* used during session-id reuse to concatenate messages */
882 * This holds a variable that indicates what we were doing when a 0 or -1
883 * is returned. This is needed for non-blocking IO so we know what
884 * request needs re-doing when in SSL_accept or SSL_connect
888 int (*handshake_func) (SSL *);
890 * Imagine that here's a boolean member "init" that is switched as soon
891 * as SSL_set_{accept/connect}_state is called for the first time, so
892 * that "state" and "handshake_func" are properly initialized. But as
893 * handshake_func is == 0 until then, we use this test instead of an
896 /* are we the server side? */
899 * Generate a new session or reuse an old one.
900 * NB: For servers, the 'new' session may actually be a previously
901 * cached session or even the previous session unless
902 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
905 /* don't send shutdown packets */
907 /* we have shut things down, 0x01 sent, 0x02 for received */
912 BUF_MEM *init_buf; /* buffer used during init */
913 void *init_msg; /* pointer to handshake message body, set by
914 * ssl3_get_message() */
915 int init_num; /* amount read/written */
916 int init_off; /* amount read/written */
918 struct ssl3_state_st *s3; /* SSLv3 variables */
919 struct dtls1_state_st *d1; /* DTLSv1 variables */
921 /* callback that allows applications to peek at protocol messages */
922 void (*msg_callback) (int write_p, int version, int content_type,
923 const void *buf, size_t len, SSL *ssl, void *arg);
924 void *msg_callback_arg;
925 int hit; /* reusing a previous session */
926 X509_VERIFY_PARAM *param;
928 /* Per connection DANE state */
932 STACK_OF(SSL_CIPHER) *cipher_list;
933 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
935 * These are the ones being used, the ones in SSL_SESSION are the ones to
936 * be 'copied' into these ones
939 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
940 EVP_MD_CTX *read_hash; /* used for mac generation */
941 COMP_CTX *compress; /* compression */
942 COMP_CTX *expand; /* uncompress */
943 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
944 EVP_MD_CTX *write_hash; /* used for mac generation */
947 /* This is used to hold the server certificate used */
948 struct cert_st /* CERT */ *cert;
950 * the session_id_context is used to ensure sessions are only reused in
951 * the appropriate context
953 unsigned int sid_ctx_length;
954 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
955 /* This can also be in the session once a session is established */
956 SSL_SESSION *session;
957 /* Default generate session ID callback. */
958 GEN_SESSION_CB generate_session_id;
961 * 0 don't care about verify failure.
962 * 1 fail if verify fails
964 uint32_t verify_mode;
965 /* fail if callback returns 0 */
966 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
967 /* optional informational callback */
968 void (*info_callback) (const SSL *ssl, int type, int val);
969 /* error bytes to be written */
973 # ifndef OPENSSL_NO_PSK
974 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
976 unsigned int max_identity_len,
978 unsigned int max_psk_len);
979 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
981 unsigned int max_psk_len);
984 /* Verified chain of peer */
985 STACK_OF(X509) *verified_chain;
987 /* extra application data */
988 CRYPTO_EX_DATA ex_data;
989 /* for server side, keep the list of CA_dn we can use */
990 STACK_OF(X509_NAME) *client_CA;
992 /* protocol behaviour */
996 int min_proto_version;
997 int max_proto_version;
1000 /* what was passed, used for SSLv3/TLS rollback check */
1004 * If we're using more than one pipeline how should we divide the data
1005 * up between the pipes?
1007 unsigned int split_send_fragment;
1009 * Maximum amount of data to send in one fragment. actual record size can
1010 * be more than this due to padding and MAC overheads.
1012 unsigned int max_send_fragment;
1014 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1015 unsigned int max_pipelines;
1017 /* TLS extension debug callback */
1018 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1019 const unsigned char *data, int len, void *arg);
1020 void *tlsext_debug_arg;
1021 char *tlsext_hostname;
1023 * no further mod of servername
1024 * 0 : call the servername extension callback.
1025 * 1 : prepare 2, allow last ack just after in server callback.
1026 * 2 : don't call servername callback, no ack in server hello
1028 int servername_done;
1029 /* certificate status request info */
1030 /* Status type or -1 if no status type */
1031 int tlsext_status_type;
1032 # ifndef OPENSSL_NO_CT
1034 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1035 * If they are not, the connection should be aborted.
1037 ssl_ct_validation_cb ct_validation_callback;
1038 /* User-supplied argument tha tis passed to the ct_validation_callback */
1039 void *ct_validation_callback_arg;
1041 * Consolidated stack of SCTs from all sources.
1042 * Lazily populated by CT_get_peer_scts(SSL*)
1044 STACK_OF(SCT) *scts;
1045 /* Raw extension data, if seen */
1046 unsigned char *tlsext_scts;
1047 /* Length of raw extension data, if seen */
1048 uint16_t tlsext_scts_len;
1049 /* Have we attempted to find/parse SCTs yet? */
1052 /* Expect OCSP CertificateStatus message */
1053 int tlsext_status_expected;
1054 /* OCSP status request only */
1055 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1056 X509_EXTENSIONS *tlsext_ocsp_exts;
1057 /* OCSP response received or to be sent */
1058 unsigned char *tlsext_ocsp_resp;
1059 int tlsext_ocsp_resplen;
1060 /* RFC4507 session ticket expected to be received or sent */
1061 int tlsext_ticket_expected;
1062 # ifndef OPENSSL_NO_EC
1063 size_t tlsext_ecpointformatlist_length;
1065 unsigned char *tlsext_ecpointformatlist;
1066 size_t tlsext_ellipticcurvelist_length;
1068 unsigned char *tlsext_ellipticcurvelist;
1069 # endif /* OPENSSL_NO_EC */
1070 /* TLS Session Ticket extension override */
1071 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1072 /* TLS Session Ticket extension callback */
1073 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1074 void *tls_session_ticket_ext_cb_arg;
1075 /* TLS pre-shared secret session resumption */
1076 tls_session_secret_cb_fn tls_session_secret_cb;
1077 void *tls_session_secret_cb_arg;
1078 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1079 # ifndef OPENSSL_NO_NEXTPROTONEG
1081 * Next protocol negotiation. For the client, this is the protocol that
1082 * we sent in NextProtocol and is set when handling ServerHello
1083 * extensions. For a server, this is the client's selected_protocol from
1084 * NextProtocol and is set when handling the NextProtocol message, before
1085 * the Finished message.
1087 unsigned char *next_proto_negotiated;
1088 unsigned char next_proto_negotiated_len;
1090 # define session_ctx initial_ctx
1092 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1093 /* What's been chosen */
1094 SRTP_PROTECTION_PROFILE *srtp_profile;
1096 * Is use of the Heartbeat extension negotiated?
1099 * 2: enabled, but not allowed to send Requests
1101 unsigned int tlsext_heartbeat;
1102 /* Indicates if a HeartbeatRequest is in flight */
1103 unsigned int tlsext_hb_pending;
1104 /* HeartbeatRequest sequence number */
1105 unsigned int tlsext_hb_seq;
1107 * For a client, this contains the list of supported protocols in wire
1110 unsigned char *alpn_client_proto_list;
1111 unsigned alpn_client_proto_list_len;
1114 * 1 if we are renegotiating.
1115 * 2 if we are a server and are inside a handshake
1116 * (i.e. not just sending a HelloRequest)
1119 # ifndef OPENSSL_NO_SRP
1120 /* ctx for SRP authentication */
1124 * Callback for disabling session caching and ticket support on a session
1125 * basis, depending on the chosen cipher.
1127 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1129 RECORD_LAYER rlayer;
1131 /* Default password callback. */
1132 pem_password_cb *default_passwd_callback;
1134 /* Default password callback user data. */
1135 void *default_passwd_callback_userdata;
1137 /* Async Job info */
1139 ASYNC_WAIT_CTX *waitctx;
1141 CRYPTO_RWLOCK *lock;
1145 typedef struct ssl3_state_st {
1147 int read_mac_secret_size;
1148 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1149 int write_mac_secret_size;
1150 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1151 unsigned char server_random[SSL3_RANDOM_SIZE];
1152 unsigned char client_random[SSL3_RANDOM_SIZE];
1153 /* flags for countermeasure against known-IV weakness */
1154 int need_empty_fragments;
1155 int empty_fragment_done;
1156 /* used during startup, digest all incoming/outgoing packets */
1157 BIO *handshake_buffer;
1159 * When handshake digest is determined, buffer is hashed and
1160 * freed and MD_CTX for the required digest is stored here.
1162 EVP_MD_CTX *handshake_dgst;
1164 * Set whenever an expected ChangeCipherSpec message is processed.
1165 * Unset when the peer's Finished message is received.
1166 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1168 int change_cipher_spec;
1172 * we allow one fatal and one warning alert to be outstanding, send close
1173 * alert via the warning alert
1176 unsigned char send_alert[2];
1178 * This flag is set when we should renegotiate ASAP, basically when there
1179 * is no more data in the read or write buffers
1182 int total_renegotiations;
1183 int num_renegotiations;
1184 int in_read_app_data;
1186 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1187 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1189 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1190 int peer_finish_md_len;
1191 unsigned long message_size;
1193 /* used to hold the new cipher we are going to use */
1194 const SSL_CIPHER *new_cipher;
1195 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1196 EVP_PKEY *pkey; /* holds short lived DH/ECDH key */
1198 /* used for certificate requests */
1201 char ctype[SSL3_CT_NUMBER];
1202 STACK_OF(X509_NAME) *ca_names;
1203 int key_block_length;
1204 unsigned char *key_block;
1205 const EVP_CIPHER *new_sym_enc;
1206 const EVP_MD *new_hash;
1207 int new_mac_pkey_type;
1208 int new_mac_secret_size;
1209 # ifndef OPENSSL_NO_COMP
1210 const SSL_COMP *new_compression;
1212 char *new_compression;
1215 /* Raw values of the cipher list from a client */
1216 unsigned char *ciphers_raw;
1217 size_t ciphers_rawlen;
1218 /* Temporary storage for premaster secret */
1221 #ifndef OPENSSL_NO_PSK
1222 /* Temporary storage for PSK key */
1227 * signature algorithms peer reports: e.g. supported signature
1228 * algorithms extension for server or as part of a certificate
1229 * request for client.
1231 unsigned char *peer_sigalgs;
1232 /* Size of above array */
1233 size_t peer_sigalgslen;
1234 /* Digest peer uses for signing */
1235 const EVP_MD *peer_md;
1236 /* Array of digests used for signing */
1237 const EVP_MD *md[SSL_PKEY_NUM];
1239 * Set if corresponding CERT_PKEY can be used with current
1240 * SSL session: e.g. appropriate curve, signature algorithms etc.
1241 * If zero it can't be used at all.
1243 uint32_t valid_flags[SSL_PKEY_NUM];
1245 * For servers the following masks are for the key and auth algorithms
1246 * that are supported by the certs below. For clients they are masks of
1247 * *disabled* algorithms based on the current session.
1252 * The following are used by the client to see if a cipher is allowed or
1253 * not. It contains the minimum and maximum version the client's using
1254 * based on what it knows so far.
1260 /* Connection binding to prevent renegotiation attacks */
1261 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1262 unsigned char previous_client_finished_len;
1263 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1264 unsigned char previous_server_finished_len;
1265 int send_connection_binding; /* TODOEKR */
1267 # ifndef OPENSSL_NO_NEXTPROTONEG
1269 * Set if we saw the Next Protocol Negotiation extension from our peer.
1271 int next_proto_neg_seen;
1275 * ALPN information (we are in the process of transitioning from NPN to
1280 * In a server these point to the selected ALPN protocol after the
1281 * ClientHello has been processed. In a client these contain the protocol
1282 * that the server selected once the ServerHello has been processed.
1284 unsigned char *alpn_selected;
1285 size_t alpn_selected_len;
1286 /* used by the server to know what options were proposed */
1287 unsigned char *alpn_proposed;
1288 size_t alpn_proposed_len;
1289 /* used by the client to know if it actually sent alpn */
1292 # ifndef OPENSSL_NO_EC
1294 * This is set to true if we believe that this is a version of Safari
1295 * running on OS X 10.6 or newer. We wish to know this because Safari on
1296 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1298 char is_probably_safari;
1299 # endif /* !OPENSSL_NO_EC */
1301 /* For clients: peer temporary key */
1302 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1309 /* DTLS structures */
1311 # ifndef OPENSSL_NO_SCTP
1312 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1315 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1316 # define DTLS1_MAX_MTU_OVERHEAD 48
1319 * Flag used in message reuse to indicate the buffer contains the record
1320 * header as well as the the handshake message header.
1322 # define DTLS1_SKIP_RECORD_HEADER 2
1324 struct dtls1_retransmit_state {
1325 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1326 EVP_MD_CTX *write_hash; /* used for mac generation */
1327 COMP_CTX *compress; /* compression */
1328 SSL_SESSION *session;
1329 unsigned short epoch;
1332 struct hm_header_st {
1334 unsigned long msg_len;
1336 unsigned long frag_off;
1337 unsigned long frag_len;
1338 unsigned int is_ccs;
1339 struct dtls1_retransmit_state saved_retransmit_state;
1342 struct dtls1_timeout_st {
1343 /* Number of read timeouts so far */
1344 unsigned int read_timeouts;
1345 /* Number of write timeouts so far */
1346 unsigned int write_timeouts;
1347 /* Number of alerts received so far */
1348 unsigned int num_alerts;
1351 typedef struct hm_fragment_st {
1352 struct hm_header_st msg_header;
1353 unsigned char *fragment;
1354 unsigned char *reassembly;
1357 typedef struct pqueue_st pqueue;
1358 typedef struct pitem_st pitem;
1361 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1366 typedef struct pitem_st *piterator;
1368 pitem *pitem_new(unsigned char *prio64be, void *data);
1369 void pitem_free(pitem *item);
1370 pqueue* pqueue_new(void);
1371 void pqueue_free(pqueue *pq);
1372 pitem *pqueue_insert(pqueue *pq, pitem *item);
1373 pitem *pqueue_peek(pqueue *pq);
1374 pitem *pqueue_pop(pqueue *pq);
1375 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1376 pitem *pqueue_iterator(pqueue *pq);
1377 pitem *pqueue_next(piterator *iter);
1378 int pqueue_size(pqueue *pq);
1380 typedef struct dtls1_state_st {
1381 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1382 unsigned int cookie_len;
1383 unsigned int cookie_verified;
1385 /* handshake message numbers */
1386 unsigned short handshake_write_seq;
1387 unsigned short next_handshake_write_seq;
1388 unsigned short handshake_read_seq;
1390 /* Buffered handshake messages */
1391 pqueue *buffered_messages;
1392 /* Buffered (sent) handshake records */
1393 pqueue *sent_messages;
1395 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1396 unsigned int mtu; /* max DTLS packet size */
1397 struct hm_header_st w_msg_hdr;
1398 struct hm_header_st r_msg_hdr;
1399 struct dtls1_timeout_st timeout;
1401 * Indicates when the last handshake msg or heartbeat sent will timeout
1403 struct timeval next_timeout;
1404 /* Timeout duration */
1405 unsigned short timeout_duration;
1407 unsigned int retransmitting;
1408 # ifndef OPENSSL_NO_SCTP
1409 int shutdown_received;
1415 # ifndef OPENSSL_NO_EC
1417 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1419 # define EXPLICIT_PRIME_CURVE_TYPE 1
1420 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1421 # define NAMED_CURVE_TYPE 3
1422 # endif /* OPENSSL_NO_EC */
1424 typedef struct cert_pkey_st {
1426 EVP_PKEY *privatekey;
1427 /* Chain for this certificate */
1428 STACK_OF(X509) *chain;
1431 * serverinfo data for this certificate. The data is in TLS Extension
1432 * wire format, specifically it's a series of records like:
1433 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1435 * uint8_t data[length];
1437 unsigned char *serverinfo;
1438 size_t serverinfo_length;
1440 /* Retrieve Suite B flags */
1441 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1442 /* Uses to check strict mode: suite B modes are always strict */
1443 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1444 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1447 unsigned short ext_type;
1449 * Per-connection flags relating to this extension type: not used if
1450 * part of an SSL_CTX structure.
1453 custom_ext_add_cb add_cb;
1454 custom_ext_free_cb free_cb;
1456 custom_ext_parse_cb parse_cb;
1458 } custom_ext_method;
1460 /* ext_flags values */
1463 * Indicates an extension has been received. Used to check for unsolicited or
1464 * duplicate extensions.
1466 # define SSL_EXT_FLAG_RECEIVED 0x1
1468 * Indicates an extension has been sent: used to enable sending of
1469 * corresponding ServerHello extension.
1471 # define SSL_EXT_FLAG_SENT 0x2
1474 custom_ext_method *meths;
1476 } custom_ext_methods;
1478 typedef struct cert_st {
1479 /* Current active set */
1481 * ALWAYS points to an element of the pkeys array
1482 * Probably it would make more sense to store
1483 * an index, not a pointer.
1486 # ifndef OPENSSL_NO_DH
1488 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1491 /* Flags related to certificates */
1492 uint32_t cert_flags;
1493 CERT_PKEY pkeys[SSL_PKEY_NUM];
1495 * Certificate types (received or sent) in certificate request message.
1496 * On receive this is only set if number of certificate types exceeds
1499 unsigned char *ctypes;
1502 * suppported signature algorithms. When set on a client this is sent in
1503 * the client hello as the supported signature algorithms extension. For
1504 * servers it represents the signature algorithms we are willing to use.
1506 unsigned char *conf_sigalgs;
1507 /* Size of above array */
1508 size_t conf_sigalgslen;
1510 * Client authentication signature algorithms, if not set then uses
1511 * conf_sigalgs. On servers these will be the signature algorithms sent
1512 * to the client in a cerificate request for TLS 1.2. On a client this
1513 * represents the signature algortithms we are willing to use for client
1516 unsigned char *client_sigalgs;
1517 /* Size of above array */
1518 size_t client_sigalgslen;
1520 * Signature algorithms shared by client and server: cached because these
1521 * are used most often.
1523 TLS_SIGALGS *shared_sigalgs;
1524 size_t shared_sigalgslen;
1526 * Certificate setup callback: if set is called whenever a certificate
1527 * may be required (client or server). the callback can then examine any
1528 * appropriate parameters and setup any certificates required. This
1529 * allows advanced applications to select certificates on the fly: for
1530 * example based on supported signature algorithms or curves.
1532 int (*cert_cb) (SSL *ssl, void *arg);
1535 * Optional X509_STORE for chain building or certificate validation If
1536 * NULL the parent SSL_CTX store is used instead.
1538 X509_STORE *chain_store;
1539 X509_STORE *verify_store;
1540 /* Custom extension methods for server and client */
1541 custom_ext_methods cli_ext;
1542 custom_ext_methods srv_ext;
1543 /* Security callback */
1544 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1545 void *other, void *ex);
1546 /* Security level */
1549 #ifndef OPENSSL_NO_PSK
1550 /* If not NULL psk identity hint to use for servers */
1551 char *psk_identity_hint;
1553 int references; /* >1 only if SSL_copy_session_id is used */
1554 CRYPTO_RWLOCK *lock;
1557 /* Structure containing decoded values of signature algorithms extension */
1558 struct tls_sigalgs_st {
1559 /* NID of hash algorithm */
1561 /* NID of signature algorithm */
1563 /* Combined hash and signature NID */
1564 int signandhash_nid;
1565 /* Raw values used in extension */
1566 unsigned char rsign;
1567 unsigned char rhash;
1570 # define FP_ICC (int (*)(const void *,const void *))
1573 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1574 * of a mess of functions, but hell, think of it as an opaque structure :-)
1576 typedef struct ssl3_enc_method {
1577 int (*enc) (SSL *, SSL3_RECORD *, unsigned int, int);
1578 int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int);
1579 int (*setup_key_block) (SSL *);
1580 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1582 int (*change_cipher_state) (SSL *, int);
1583 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1584 int finish_mac_length;
1585 const char *client_finished_label;
1586 int client_finished_label_len;
1587 const char *server_finished_label;
1588 int server_finished_label_len;
1589 int (*alert_value) (int);
1590 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1591 const char *, size_t,
1592 const unsigned char *, size_t,
1594 /* Various flags indicating protocol version requirements */
1596 /* Handshake header length */
1598 /* Set the handshake header */
1599 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1600 /* Write out handshake message */
1601 int (*do_write) (SSL *s);
1604 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1605 # define ssl_handshake_start(s) \
1606 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1607 # define ssl_set_handshake_header(s, htype, len) \
1608 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1609 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1611 /* Values for enc_flags */
1613 /* Uses explicit IV for CBC mode */
1614 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1615 /* Uses signature algorithms extension */
1616 # define SSL_ENC_FLAG_SIGALGS 0x2
1617 /* Uses SHA256 default PRF */
1618 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1620 # define SSL_ENC_FLAG_DTLS 0x8
1622 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1623 * apply to others in future.
1625 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1627 # ifndef OPENSSL_NO_COMP
1628 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1629 typedef struct ssl3_comp_st {
1630 int comp_id; /* The identifier byte for this compression
1632 char *name; /* Text name used for the compression type */
1633 COMP_METHOD *method; /* The method :-) */
1637 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1639 __owur const SSL_METHOD *ssl_bad_method(int ver);
1640 __owur const SSL_METHOD *sslv3_method(void);
1641 __owur const SSL_METHOD *sslv3_server_method(void);
1642 __owur const SSL_METHOD *sslv3_client_method(void);
1643 __owur const SSL_METHOD *tlsv1_method(void);
1644 __owur const SSL_METHOD *tlsv1_server_method(void);
1645 __owur const SSL_METHOD *tlsv1_client_method(void);
1646 __owur const SSL_METHOD *tlsv1_1_method(void);
1647 __owur const SSL_METHOD *tlsv1_1_server_method(void);
1648 __owur const SSL_METHOD *tlsv1_1_client_method(void);
1649 __owur const SSL_METHOD *tlsv1_2_method(void);
1650 __owur const SSL_METHOD *tlsv1_2_server_method(void);
1651 __owur const SSL_METHOD *tlsv1_2_client_method(void);
1652 __owur const SSL_METHOD *dtlsv1_method(void);
1653 __owur const SSL_METHOD *dtlsv1_server_method(void);
1654 __owur const SSL_METHOD *dtlsv1_client_method(void);
1655 __owur const SSL_METHOD *dtlsv1_2_method(void);
1656 __owur const SSL_METHOD *dtlsv1_2_server_method(void);
1657 __owur const SSL_METHOD *dtlsv1_2_client_method(void);
1659 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1660 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1661 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1662 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1663 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1664 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1667 * Flags for SSL methods
1669 #define SSL_METHOD_NO_FIPS (1U<<0)
1670 #define SSL_METHOD_NO_SUITEB (1U<<1)
1672 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1673 s_connect, enc_data) \
1674 const SSL_METHOD *func_name(void) \
1676 static const SSL_METHOD func_name##_data= { \
1690 ssl3_renegotiate_check, \
1693 ssl3_dispatch_alert, \
1696 ssl3_get_cipher_by_char, \
1697 ssl3_put_cipher_by_char, \
1701 tls1_default_timeout, \
1703 ssl_undefined_void_function, \
1704 ssl3_callback_ctrl, \
1705 ssl3_ctx_callback_ctrl, \
1707 return &func_name##_data; \
1710 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
1711 const SSL_METHOD *func_name(void) \
1713 static const SSL_METHOD func_name##_data= { \
1715 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1727 ssl3_renegotiate_check, \
1730 ssl3_dispatch_alert, \
1733 ssl3_get_cipher_by_char, \
1734 ssl3_put_cipher_by_char, \
1738 ssl3_default_timeout, \
1740 ssl_undefined_void_function, \
1741 ssl3_callback_ctrl, \
1742 ssl3_ctx_callback_ctrl, \
1744 return &func_name##_data; \
1747 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
1748 s_connect, enc_data) \
1749 const SSL_METHOD *func_name(void) \
1751 static const SSL_METHOD func_name##_data= { \
1765 ssl3_renegotiate_check, \
1767 dtls1_write_app_data_bytes, \
1768 dtls1_dispatch_alert, \
1771 ssl3_get_cipher_by_char, \
1772 ssl3_put_cipher_by_char, \
1776 dtls1_default_timeout, \
1778 ssl_undefined_void_function, \
1779 ssl3_callback_ctrl, \
1780 ssl3_ctx_callback_ctrl, \
1782 return &func_name##_data; \
1785 struct openssl_ssl_test_functions {
1786 int (*p_ssl_init_wbio_buffer) (SSL *s);
1787 int (*p_ssl3_setup_buffers) (SSL *s);
1788 # ifndef OPENSSL_NO_HEARTBEATS
1789 int (*p_dtls1_process_heartbeat) (SSL *s,
1790 unsigned char *p, unsigned int length);
1794 const char *ssl_protocol_to_string(int version);
1796 # ifndef OPENSSL_UNIT_TEST
1798 void ssl_clear_cipher_ctx(SSL *s);
1799 int ssl_clear_bad_session(SSL *s);
1800 __owur CERT *ssl_cert_new(void);
1801 __owur CERT *ssl_cert_dup(CERT *cert);
1802 void ssl_cert_clear_certs(CERT *c);
1803 void ssl_cert_free(CERT *c);
1804 __owur int ssl_get_new_session(SSL *s, int session);
1805 __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
1806 const PACKET *session_id);
1807 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1808 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1809 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1810 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1811 const SSL_CIPHER *const *bp);
1812 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1813 STACK_OF(SSL_CIPHER) **pref,
1814 STACK_OF(SSL_CIPHER) **sorted,
1815 const char *rule_str, CERT *c);
1816 void ssl_update_cache(SSL *s, int mode);
1817 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1818 const EVP_MD **md, int *mac_pkey_type,
1819 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1820 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1821 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1822 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1823 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1824 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1825 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1826 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1827 __owur int ssl_cert_set_current(CERT *c, long arg);
1828 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1829 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1832 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1833 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1834 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1835 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1837 __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other);
1838 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other);
1840 int ssl_undefined_function(SSL *s);
1841 __owur int ssl_undefined_void_function(void);
1842 __owur int ssl_undefined_const_function(const SSL *s);
1843 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1844 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1845 size_t *serverinfo_length);
1846 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1847 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1848 void ssl_set_masks(SSL *s);
1849 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1850 __owur int ssl_verify_alarm_type(long type);
1851 void ssl_sort_cipher_list(void);
1852 void ssl_load_ciphers(void);
1853 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1854 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1856 __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm, int nid);
1857 __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey);
1858 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
1860 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1861 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1862 int ssl3_init_finished_mac(SSL *s);
1863 __owur int ssl3_setup_key_block(SSL *s);
1864 __owur int ssl3_change_cipher_state(SSL *s, int which);
1865 void ssl3_cleanup_key_block(SSL *s);
1866 __owur int ssl3_do_write(SSL *s, int type);
1867 int ssl3_send_alert(SSL *s, int level, int desc);
1868 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1869 unsigned char *p, int len);
1870 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1871 __owur int ssl3_num_ciphers(void);
1872 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1873 int ssl3_renegotiate(SSL *ssl);
1874 int ssl3_renegotiate_check(SSL *ssl);
1875 __owur int ssl3_dispatch_alert(SSL *s);
1876 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1878 __owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1879 void ssl3_free_digest_list(SSL *s);
1880 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1881 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
1882 STACK_OF(SSL_CIPHER) *clnt,
1883 STACK_OF(SSL_CIPHER) *srvr);
1884 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1885 __owur int ssl3_new(SSL *s);
1886 void ssl3_free(SSL *s);
1887 __owur int ssl3_read(SSL *s, void *buf, int len);
1888 __owur int ssl3_peek(SSL *s, void *buf, int len);
1889 __owur int ssl3_write(SSL *s, const void *buf, int len);
1890 __owur int ssl3_shutdown(SSL *s);
1891 void ssl3_clear(SSL *s);
1892 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1893 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1894 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1895 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1897 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1898 __owur long ssl3_default_timeout(void);
1900 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1901 __owur int ssl3_handshake_write(SSL *s);
1903 __owur int ssl_allow_compression(SSL *s);
1905 __owur int ssl_version_supported(const SSL *s, int version);
1907 __owur int ssl_set_client_hello_version(SSL *s);
1908 __owur int ssl_check_version_downgrade(SSL *s);
1909 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
1910 __owur int ssl_choose_server_version(SSL *s);
1911 __owur int ssl_choose_client_version(SSL *s, int version);
1912 int ssl_get_client_min_max_version(const SSL *s, int *min_version, int *max_version);
1914 __owur long tls1_default_timeout(void);
1915 __owur int dtls1_do_write(SSL *s, int type);
1916 void dtls1_set_message_header(SSL *s,
1919 unsigned long frag_off,
1920 unsigned long frag_len);
1922 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1924 __owur int dtls1_read_failed(SSL *s, int code);
1925 __owur int dtls1_buffer_message(SSL *s, int ccs);
1926 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found);
1927 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1928 int dtls1_retransmit_buffered_messages(SSL *s);
1929 void dtls1_clear_record_buffer(SSL *s);
1930 void dtls1_get_message_header(unsigned char *data,
1931 struct hm_header_st *msg_hdr);
1932 __owur long dtls1_default_timeout(void);
1933 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1934 __owur int dtls1_check_timeout_num(SSL *s);
1935 __owur int dtls1_handle_timeout(SSL *s);
1936 void dtls1_start_timer(SSL *s);
1937 void dtls1_stop_timer(SSL *s);
1938 __owur int dtls1_is_timer_expired(SSL *s);
1939 void dtls1_double_timeout(SSL *s);
1940 __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
1941 unsigned char *cookie,
1942 unsigned char cookie_len);
1943 __owur int dtls1_send_newsession_ticket(SSL *s);
1944 __owur unsigned int dtls1_min_mtu(SSL *s);
1945 void dtls1_hm_fragment_free(hm_fragment *frag);
1946 __owur int dtls1_query_mtu(SSL *s);
1948 __owur int tls1_new(SSL *s);
1949 void tls1_free(SSL *s);
1950 void tls1_clear(SSL *s);
1951 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1952 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1954 __owur int dtls1_new(SSL *s);
1955 void dtls1_free(SSL *s);
1956 void dtls1_clear(SSL *s);
1957 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1958 __owur int dtls1_shutdown(SSL *s);
1960 __owur int dtls1_dispatch_alert(SSL *s);
1962 __owur int ssl_init_wbio_buffer(SSL *s);
1963 void ssl_free_wbio_buffer(SSL *s);
1965 __owur int tls1_change_cipher_state(SSL *s, int which);
1966 __owur int tls1_setup_key_block(SSL *s);
1967 __owur int tls1_final_finish_mac(SSL *s,
1968 const char *str, int slen, unsigned char *p);
1969 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
1970 unsigned char *p, int len);
1971 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1972 const char *label, size_t llen,
1973 const unsigned char *p, size_t plen,
1975 __owur int tls1_alert_code(int code);
1976 __owur int ssl3_alert_code(int code);
1977 __owur int ssl_ok(SSL *s);
1979 # ifndef OPENSSL_NO_EC
1980 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
1983 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1985 # ifndef OPENSSL_NO_EC
1986 __owur int tls1_ec_curve_id2nid(int curve_id);
1987 __owur int tls1_ec_nid2curve_id(int nid);
1988 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
1989 __owur int tls1_shared_curve(SSL *s, int nmatch);
1990 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
1991 int *curves, size_t ncurves);
1992 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
1994 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
1995 # endif /* OPENSSL_NO_EC */
1997 __owur int tls1_shared_list(SSL *s,
1998 const unsigned char *l1, size_t l1len,
1999 const unsigned char *l2, size_t l2len, int nmatch);
2000 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
2001 unsigned char *limit, int *al);
2002 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
2003 unsigned char *limit, int *al);
2004 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2005 void ssl_set_default_md(SSL *s);
2006 __owur int tls1_set_server_sigalgs(SSL *s);
2007 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2008 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2009 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2010 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2012 # ifndef OPENSSL_NO_HEARTBEATS
2013 __owur int dtls1_heartbeat(SSL *s);
2014 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2017 __owur int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
2018 const PACKET *session_id,
2021 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2023 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2024 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2025 void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
2027 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2028 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2029 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2031 void tls1_set_cert_validity(SSL *s);
2033 #ifndef OPENSSL_NO_CT
2034 __owur int ssl_validate_ct(SSL *s);
2037 # ifndef OPENSSL_NO_DH
2038 __owur DH *ssl_get_auto_dh(SSL *s);
2041 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2042 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2044 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2045 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2046 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2048 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2050 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2052 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2053 __owur long ssl_get_algorithm2(SSL *s);
2054 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2055 const unsigned char *psig, size_t psiglen);
2056 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2057 __owur int tls1_process_sigalgs(SSL *s);
2058 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2059 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2060 const unsigned char *sig, EVP_PKEY *pkey);
2061 void ssl_set_client_disabled(SSL *s);
2062 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2064 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2066 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2067 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2069 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2071 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2072 __owur const EVP_MD *ssl_md(int idx);
2073 __owur const EVP_MD *ssl_handshake_md(SSL *s);
2074 __owur const EVP_MD *ssl_prf_md(SSL *s);
2077 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2078 __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2079 unsigned char *md_out,
2080 size_t *md_out_size,
2081 const unsigned char header[13],
2082 const unsigned char *data,
2083 size_t data_plus_mac_size,
2084 size_t data_plus_mac_plus_padding_size,
2085 const unsigned char *mac_secret,
2086 unsigned mac_secret_length, char is_sslv3);
2088 __owur int tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2089 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2090 size_t data_len, size_t orig_len);
2092 __owur int srp_generate_server_master_secret(SSL *s);
2093 __owur int srp_generate_client_master_secret(SSL *s);
2094 __owur int srp_verify_server_param(SSL *s, int *al);
2098 void custom_ext_init(custom_ext_methods *meths);
2100 __owur int custom_ext_parse(SSL *s, int server,
2101 unsigned int ext_type,
2102 const unsigned char *ext_data, size_t ext_size, int *al);
2103 __owur int custom_ext_add(SSL *s, int server,
2104 unsigned char **pret, unsigned char *limit, int *al);
2106 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2107 void custom_exts_free(custom_ext_methods *exts);
2109 void ssl_comp_free_compression_methods_int(void);
2113 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2114 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2115 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat