-
-
Notifications
You must be signed in to change notification settings - Fork 10.1k
/
ssl.h
2771 lines (2576 loc) · 127 KB
/
ssl.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* ssl/ssl.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
* ECC cipher suite support in OpenSSL originally developed by
* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
*/
/* ====================================================================
* Copyright 2005 Nokia. All rights reserved.
*
* The portions of the attached software ("Contribution") is developed by
* Nokia Corporation and is licensed pursuant to the OpenSSL open source
* license.
*
* The Contribution, originally written by Mika Kousa and Pasi Eronen of
* Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
* support (see RFC 4279) to OpenSSL.
*
* No patent licenses or other rights except those expressly stated in
* the OpenSSL open source license shall be deemed granted or received
* expressly, by implication, estoppel, or otherwise.
*
* No assurances are provided by Nokia that the Contribution does not
* infringe the patent or other intellectual property rights of any third
* party or that the license provides you with all the necessary rights
* to make use of the Contribution.
*
* THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
* ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
* SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
* OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
* OTHERWISE.
*/
#ifndef HEADER_SSL_H
# define HEADER_SSL_H
# include <openssl/e_os2.h>
# ifndef OPENSSL_NO_COMP
# include <openssl/comp.h>
# endif
# ifndef OPENSSL_NO_BIO
# include <openssl/bio.h>
# endif
# ifndef OPENSSL_NO_DEPRECATED
# ifndef OPENSSL_NO_X509
# include <openssl/x509.h>
# endif
# include <openssl/crypto.h>
# include <openssl/lhash.h>
# include <openssl/buffer.h>
# endif
# include <openssl/pem.h>
# include <openssl/hmac.h>
# include <openssl/kssl.h>
# include <openssl/safestack.h>
# include <openssl/symhacks.h>
#ifdef __cplusplus
extern "C" {
#endif
/* SSLeay version number for ASN.1 encoding of the session information */
/*-
* Version 0 - initial version
* Version 1 - added the optional peer certificate
*/
# define SSL_SESSION_ASN1_VERSION 0x0001
/* text strings for the ciphers */
# define SSL_TXT_NULL_WITH_MD5 SSL2_TXT_NULL_WITH_MD5
# define SSL_TXT_RC4_128_WITH_MD5 SSL2_TXT_RC4_128_WITH_MD5
# define SSL_TXT_RC4_128_EXPORT40_WITH_MD5 SSL2_TXT_RC4_128_EXPORT40_WITH_MD5
# define SSL_TXT_RC2_128_CBC_WITH_MD5 SSL2_TXT_RC2_128_CBC_WITH_MD5
# define SSL_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5
# define SSL_TXT_IDEA_128_CBC_WITH_MD5 SSL2_TXT_IDEA_128_CBC_WITH_MD5
# define SSL_TXT_DES_64_CBC_WITH_MD5 SSL2_TXT_DES_64_CBC_WITH_MD5
# define SSL_TXT_DES_64_CBC_WITH_SHA SSL2_TXT_DES_64_CBC_WITH_SHA
# define SSL_TXT_DES_192_EDE3_CBC_WITH_MD5 SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5
# define SSL_TXT_DES_192_EDE3_CBC_WITH_SHA SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA
/*
* VRS Additional Kerberos5 entries
*/
# define SSL_TXT_KRB5_DES_64_CBC_SHA SSL3_TXT_KRB5_DES_64_CBC_SHA
# define SSL_TXT_KRB5_DES_192_CBC3_SHA SSL3_TXT_KRB5_DES_192_CBC3_SHA
# define SSL_TXT_KRB5_RC4_128_SHA SSL3_TXT_KRB5_RC4_128_SHA
# define SSL_TXT_KRB5_IDEA_128_CBC_SHA SSL3_TXT_KRB5_IDEA_128_CBC_SHA
# define SSL_TXT_KRB5_DES_64_CBC_MD5 SSL3_TXT_KRB5_DES_64_CBC_MD5
# define SSL_TXT_KRB5_DES_192_CBC3_MD5 SSL3_TXT_KRB5_DES_192_CBC3_MD5
# define SSL_TXT_KRB5_RC4_128_MD5 SSL3_TXT_KRB5_RC4_128_MD5
# define SSL_TXT_KRB5_IDEA_128_CBC_MD5 SSL3_TXT_KRB5_IDEA_128_CBC_MD5
# define SSL_TXT_KRB5_DES_40_CBC_SHA SSL3_TXT_KRB5_DES_40_CBC_SHA
# define SSL_TXT_KRB5_RC2_40_CBC_SHA SSL3_TXT_KRB5_RC2_40_CBC_SHA
# define SSL_TXT_KRB5_RC4_40_SHA SSL3_TXT_KRB5_RC4_40_SHA
# define SSL_TXT_KRB5_DES_40_CBC_MD5 SSL3_TXT_KRB5_DES_40_CBC_MD5
# define SSL_TXT_KRB5_RC2_40_CBC_MD5 SSL3_TXT_KRB5_RC2_40_CBC_MD5
# define SSL_TXT_KRB5_RC4_40_MD5 SSL3_TXT_KRB5_RC4_40_MD5
# define SSL_TXT_KRB5_DES_40_CBC_SHA SSL3_TXT_KRB5_DES_40_CBC_SHA
# define SSL_TXT_KRB5_DES_40_CBC_MD5 SSL3_TXT_KRB5_DES_40_CBC_MD5
# define SSL_TXT_KRB5_DES_64_CBC_SHA SSL3_TXT_KRB5_DES_64_CBC_SHA
# define SSL_TXT_KRB5_DES_64_CBC_MD5 SSL3_TXT_KRB5_DES_64_CBC_MD5
# define SSL_TXT_KRB5_DES_192_CBC3_SHA SSL3_TXT_KRB5_DES_192_CBC3_SHA
# define SSL_TXT_KRB5_DES_192_CBC3_MD5 SSL3_TXT_KRB5_DES_192_CBC3_MD5
# define SSL_MAX_KRB5_PRINCIPAL_LENGTH 256
# define SSL_MAX_SSL_SESSION_ID_LENGTH 32
# define SSL_MAX_SID_CTX_LENGTH 32
# define SSL_MIN_RSA_MODULUS_LENGTH_IN_BYTES (512/8)
# define SSL_MAX_KEY_ARG_LENGTH 8
# define SSL_MAX_MASTER_KEY_LENGTH 48
/* These are used to specify which ciphers to use and not to use */
# define SSL_TXT_EXP40 "EXPORT40"
# define SSL_TXT_EXP56 "EXPORT56"
# define SSL_TXT_LOW "LOW"
# define SSL_TXT_MEDIUM "MEDIUM"
# define SSL_TXT_HIGH "HIGH"
# define SSL_TXT_FIPS "FIPS"
# define SSL_TXT_kFZA "kFZA"/* unused! */
# define SSL_TXT_aFZA "aFZA"/* unused! */
# define SSL_TXT_eFZA "eFZA"/* unused! */
# define SSL_TXT_FZA "FZA"/* unused! */
# define SSL_TXT_aNULL "aNULL"
# define SSL_TXT_eNULL "eNULL"
# define SSL_TXT_NULL "NULL"
# define SSL_TXT_kRSA "kRSA"
# define SSL_TXT_kDHr "kDHr"/* no such ciphersuites supported! */
# define SSL_TXT_kDHd "kDHd"/* no such ciphersuites supported! */
# define SSL_TXT_kDH "kDH"/* no such ciphersuites supported! */
# define SSL_TXT_kEDH "kEDH"
# define SSL_TXT_kKRB5 "kKRB5"
# define SSL_TXT_kECDHr "kECDHr"
# define SSL_TXT_kECDHe "kECDHe"
# define SSL_TXT_kECDH "kECDH"
# define SSL_TXT_kEECDH "kEECDH"
# define SSL_TXT_kPSK "kPSK"
# define SSL_TXT_kGOST "kGOST"
# define SSL_TXT_kSRP "kSRP"
# define SSL_TXT_aRSA "aRSA"
# define SSL_TXT_aDSS "aDSS"
# define SSL_TXT_aDH "aDH"/* no such ciphersuites supported! */
# define SSL_TXT_aECDH "aECDH"
# define SSL_TXT_aKRB5 "aKRB5"
# define SSL_TXT_aECDSA "aECDSA"
# define SSL_TXT_aPSK "aPSK"
# define SSL_TXT_aGOST94 "aGOST94"
# define SSL_TXT_aGOST01 "aGOST01"
# define SSL_TXT_aGOST "aGOST"
# define SSL_TXT_aSRP "aSRP"
# define SSL_TXT_DSS "DSS"
# define SSL_TXT_DH "DH"
# define SSL_TXT_EDH "EDH"/* same as "kEDH:-ADH" */
# define SSL_TXT_ADH "ADH"
# define SSL_TXT_RSA "RSA"
# define SSL_TXT_ECDH "ECDH"
# define SSL_TXT_EECDH "EECDH"/* same as "kEECDH:-AECDH" */
# define SSL_TXT_AECDH "AECDH"
# define SSL_TXT_ECDSA "ECDSA"
# define SSL_TXT_KRB5 "KRB5"
# define SSL_TXT_PSK "PSK"
# define SSL_TXT_SRP "SRP"
# define SSL_TXT_DES "DES"
# define SSL_TXT_3DES "3DES"
# define SSL_TXT_RC4 "RC4"
# define SSL_TXT_RC2 "RC2"
# define SSL_TXT_IDEA "IDEA"
# define SSL_TXT_SEED "SEED"
# define SSL_TXT_AES128 "AES128"
# define SSL_TXT_AES256 "AES256"
# define SSL_TXT_AES "AES"
# define SSL_TXT_AES_GCM "AESGCM"
# define SSL_TXT_CAMELLIA128 "CAMELLIA128"
# define SSL_TXT_CAMELLIA256 "CAMELLIA256"
# define SSL_TXT_CAMELLIA "CAMELLIA"
# define SSL_TXT_MD5 "MD5"
# define SSL_TXT_SHA1 "SHA1"
# define SSL_TXT_SHA "SHA"/* same as "SHA1" */
# define SSL_TXT_GOST94 "GOST94"
# define SSL_TXT_GOST89MAC "GOST89MAC"
# define SSL_TXT_SHA256 "SHA256"
# define SSL_TXT_SHA384 "SHA384"
# define SSL_TXT_SSLV2 "SSLv2"
# define SSL_TXT_SSLV3 "SSLv3"
# define SSL_TXT_TLSV1 "TLSv1"
# define SSL_TXT_TLSV1_1 "TLSv1.1"
# define SSL_TXT_TLSV1_2 "TLSv1.2"
# define SSL_TXT_EXP "EXP"
# define SSL_TXT_EXPORT "EXPORT"
# define SSL_TXT_ALL "ALL"
/*-
* COMPLEMENTOF* definitions. These identifiers are used to (de-select)
* ciphers normally not being used.
* Example: "RC4" will activate all ciphers using RC4 including ciphers
* without authentication, which would normally disabled by DEFAULT (due
* the "!ADH" being part of default). Therefore "RC4:!COMPLEMENTOFDEFAULT"
* will make sure that it is also disabled in the specific selection.
* COMPLEMENTOF* identifiers are portable between version, as adjustments
* to the default cipher setup will also be included here.
*
* COMPLEMENTOFDEFAULT does not experience the same special treatment that
* DEFAULT gets, as only selection is being done and no sorting as needed
* for DEFAULT.
*/
# define SSL_TXT_CMPALL "COMPLEMENTOFALL"
# define SSL_TXT_CMPDEF "COMPLEMENTOFDEFAULT"
/*
* The following cipher list is used by default. It also is substituted when
* an application-defined cipher list string starts with 'DEFAULT'.
*/
# define SSL_DEFAULT_CIPHER_LIST "ALL:!EXPORT:!LOW:!aNULL:!eNULL:!SSLv2"
/*
* As of OpenSSL 1.0.0, ssl_create_cipher_list() in ssl/ssl_ciph.c always
* starts with a reasonable order, and all we have to do for DEFAULT is
* throwing out anonymous and unencrypted ciphersuites! (The latter are not
* actually enabled by ALL, but "ALL:RSA" would enable some of them.)
*/
/* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
# define SSL_SENT_SHUTDOWN 1
# define SSL_RECEIVED_SHUTDOWN 2
#ifdef __cplusplus
}
#endif
#ifdef __cplusplus
extern "C" {
#endif
# if (defined(OPENSSL_NO_RSA) || defined(OPENSSL_NO_MD5)) && !defined(OPENSSL_NO_SSL2)
# define OPENSSL_NO_SSL2
# endif
# define SSL_FILETYPE_ASN1 X509_FILETYPE_ASN1
# define SSL_FILETYPE_PEM X509_FILETYPE_PEM
/*
* This is needed to stop compilers complaining about the 'struct ssl_st *'
* function parameters used to prototype callbacks in SSL_CTX.
*/
typedef struct ssl_st *ssl_crock_st;
typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
typedef struct ssl_method_st SSL_METHOD;
typedef struct ssl_cipher_st SSL_CIPHER;
typedef struct ssl_session_st SSL_SESSION;
DECLARE_STACK_OF(SSL_CIPHER)
/* SRTP protection profiles for use with the use_srtp extension (RFC 5764)*/
typedef struct srtp_protection_profile_st {
const char *name;
unsigned long id;
} SRTP_PROTECTION_PROFILE;
DECLARE_STACK_OF(SRTP_PROTECTION_PROFILE)
typedef int (*tls_session_ticket_ext_cb_fn) (SSL *s,
const unsigned char *data,
int len, void *arg);
typedef int (*tls_session_secret_cb_fn) (SSL *s, void *secret,
int *secret_len,
STACK_OF(SSL_CIPHER) *peer_ciphers,
SSL_CIPHER **cipher, void *arg);
# ifndef OPENSSL_NO_SSL_INTERN
/* used to hold info on the particular ciphers used */
struct ssl_cipher_st {
int valid;
const char *name; /* text name */
unsigned long id; /* id, 4 bytes, first is version */
/*
* changed in 0.9.9: these four used to be portions of a single value
* 'algorithms'
*/
unsigned long algorithm_mkey; /* key exchange algorithm */
unsigned long algorithm_auth; /* server authentication */
unsigned long algorithm_enc; /* symmetric encryption */
unsigned long algorithm_mac; /* symmetric authentication */
unsigned long algorithm_ssl; /* (major) protocol version */
unsigned long algo_strength; /* strength and export flags */
unsigned long algorithm2; /* Extra flags */
int strength_bits; /* Number of bits really used */
int alg_bits; /* Number of bits for algorithm */
};
/* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
struct ssl_method_st {
int version;
int (*ssl_new) (SSL *s);
void (*ssl_clear) (SSL *s);
void (*ssl_free) (SSL *s);
int (*ssl_accept) (SSL *s);
int (*ssl_connect) (SSL *s);
int (*ssl_read) (SSL *s, void *buf, int len);
int (*ssl_peek) (SSL *s, void *buf, int len);
int (*ssl_write) (SSL *s, const void *buf, int len);
int (*ssl_shutdown) (SSL *s);
int (*ssl_renegotiate) (SSL *s);
int (*ssl_renegotiate_check) (SSL *s);
long (*ssl_get_message) (SSL *s, int st1, int stn, int mt, long
max, int *ok);
int (*ssl_read_bytes) (SSL *s, int type, unsigned char *buf, int len,
int peek);
int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
int (*ssl_dispatch_alert) (SSL *s);
long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
int (*ssl_pending) (const SSL *s);
int (*num_ciphers) (void);
const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
const struct ssl_method_st *(*get_ssl_method) (int version);
long (*get_timeout) (void);
struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
int (*ssl_version) (void);
long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
};
/*-
* Lets make this into an ASN.1 type structure as follows
* SSL_SESSION_ID ::= SEQUENCE {
* version INTEGER, -- structure version number
* SSLversion INTEGER, -- SSL version number
* Cipher OCTET STRING, -- the 3 byte cipher ID
* Session_ID OCTET STRING, -- the Session ID
* Master_key OCTET STRING, -- the master key
* KRB5_principal OCTET STRING -- optional Kerberos principal
* Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
* Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
* Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
* Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
* Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
* Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
* HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
* PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
* PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
* Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
* Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
* Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
* SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
* }
* Look in ssl/ssl_asn1.c for more details
* I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
*/
struct ssl_session_st {
int ssl_version; /* what ssl version session info is being
* kept in here? */
/* only really used in SSLv2 */
unsigned int key_arg_length;
unsigned char key_arg[SSL_MAX_KEY_ARG_LENGTH];
int master_key_length;
unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
/* session_id - valid? */
unsigned int session_id_length;
unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
/*
* this is used to determine whether the session is being reused in the
* appropriate context. It is up to the application to set this, via
* SSL_new
*/
unsigned int sid_ctx_length;
unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
# ifndef OPENSSL_NO_KRB5
unsigned int krb5_client_princ_len;
unsigned char krb5_client_princ[SSL_MAX_KRB5_PRINCIPAL_LENGTH];
# endif /* OPENSSL_NO_KRB5 */
# ifndef OPENSSL_NO_PSK
char *psk_identity_hint;
char *psk_identity;
# endif
/*
* Used to indicate that session resumption is not allowed. Applications
* can also set this bit for a new session via not_resumable_session_cb
* to disable session caching and tickets.
*/
int not_resumable;
/* The cert is the certificate used to establish this connection */
struct sess_cert_st /* SESS_CERT */ *sess_cert;
/*
* This is the cert for the other end. On clients, it will be the same as
* sess_cert->peer_key->x509 (the latter is not enough as sess_cert is
* not retained in the external representation of sessions, see
* ssl_asn1.c).
*/
X509 *peer;
/*
* when app_verify_callback accepts a session where the peer's
* certificate is not ok, we must remember the error for session reuse:
*/
long verify_result; /* only for servers */
int references;
long timeout;
long time;
unsigned int compress_meth; /* Need to lookup the method */
const SSL_CIPHER *cipher;
unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
* to load the 'cipher' structure */
STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
CRYPTO_EX_DATA ex_data; /* application specific data */
/*
* These are used to make removal of session-ids more efficient and to
* implement a maximum cache size.
*/
struct ssl_session_st *prev, *next;
# ifndef OPENSSL_NO_TLSEXT
char *tlsext_hostname;
# ifndef OPENSSL_NO_EC
size_t tlsext_ecpointformatlist_length;
unsigned char *tlsext_ecpointformatlist; /* peer's list */
size_t tlsext_ellipticcurvelist_length;
unsigned char *tlsext_ellipticcurvelist; /* peer's list */
# endif /* OPENSSL_NO_EC */
/* RFC4507 info */
unsigned char *tlsext_tick; /* Session ticket */
size_t tlsext_ticklen; /* Session ticket length */
long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
# endif
# ifndef OPENSSL_NO_SRP
char *srp_username;
# endif
};
# endif
# define SSL_OP_MICROSOFT_SESS_ID_BUG 0x00000001L
# define SSL_OP_NETSCAPE_CHALLENGE_BUG 0x00000002L
/* Allow initial connection to servers that don't support RI */
# define SSL_OP_LEGACY_SERVER_CONNECT 0x00000004L
# define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG 0x00000008L
# define SSL_OP_TLSEXT_PADDING 0x00000010L
# define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER 0x00000020L
# define SSL_OP_SAFARI_ECDHE_ECDSA_BUG 0x00000040L
# define SSL_OP_SSLEAY_080_CLIENT_DH_BUG 0x00000080L
# define SSL_OP_TLS_D5_BUG 0x00000100L
# define SSL_OP_TLS_BLOCK_PADDING_BUG 0x00000200L
/* Hasn't done anything since OpenSSL 0.9.7h, retained for compatibility */
# define SSL_OP_MSIE_SSLV2_RSA_PADDING 0x0
/* Refers to ancient SSLREF and SSLv2, retained for compatibility */
# define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG 0x0
/*
* Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added in
* OpenSSL 0.9.6d. Usually (depending on the application protocol) the
* workaround is not needed. Unfortunately some broken SSL/TLS
* implementations cannot handle it at all, which is why we include it in
* SSL_OP_ALL.
*/
/* added in 0.9.6e */
# define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 0x00000800L
/*
* SSL_OP_ALL: various bug workarounds that should be rather harmless. This
* used to be 0x000FFFFFL before 0.9.7.
*/
# define SSL_OP_ALL 0x80000BFFL
/* DTLS options */
# define SSL_OP_NO_QUERY_MTU 0x00001000L
/* Turn on Cookie Exchange (on relevant for servers) */
# define SSL_OP_COOKIE_EXCHANGE 0x00002000L
/* Don't use RFC4507 ticket extension */
# define SSL_OP_NO_TICKET 0x00004000L
/* Use Cisco's "speshul" version of DTLS_BAD_VER (as client) */
# define SSL_OP_CISCO_ANYCONNECT 0x00008000L
/* As server, disallow session resumption on renegotiation */
# define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0x00010000L
/* Don't use compression even if supported */
# define SSL_OP_NO_COMPRESSION 0x00020000L
/* Permit unsafe legacy renegotiation */
# define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 0x00040000L
/* If set, always create a new key when using tmp_ecdh parameters */
# define SSL_OP_SINGLE_ECDH_USE 0x00080000L
/* Does nothing: retained for compatibility */
# define SSL_OP_SINGLE_DH_USE 0x00100000L
/* Does nothing: retained for compatibiity */
# define SSL_OP_EPHEMERAL_RSA 0x0
/*
* Set on servers to choose the cipher according to the server's preferences
*/
# define SSL_OP_CIPHER_SERVER_PREFERENCE 0x00400000L
/*
* If set, a server will allow a client to issue a SSLv3.0 version number as
* latest version supported in the premaster secret, even when TLSv1.0
* (version 3.1) was announced in the client hello. Normally this is
* forbidden to prevent version rollback attacks.
*/
# define SSL_OP_TLS_ROLLBACK_BUG 0x00800000L
# define SSL_OP_NO_SSLv2 0x01000000L
# define SSL_OP_NO_SSLv3 0x02000000L
# define SSL_OP_NO_TLSv1 0x04000000L
# define SSL_OP_NO_TLSv1_2 0x08000000L
# define SSL_OP_NO_TLSv1_1 0x10000000L
/*
* These next two were never actually used for anything since SSLeay zap so
* we have some more flags.
*/
/*
* The next flag deliberately changes the ciphertest, this is a check for the
* PKCS#1 attack
*/
# define SSL_OP_PKCS1_CHECK_1 0x0
# define SSL_OP_PKCS1_CHECK_2 0x0
# define SSL_OP_NETSCAPE_CA_DN_BUG 0x20000000L
# define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG 0x40000000L
/*
* Make server add server-hello extension from early version of cryptopro
* draft, when GOST ciphersuite is negotiated. Required for interoperability
* with CryptoPro CSP 3.x
*/
# define SSL_OP_CRYPTOPRO_TLSEXT_BUG 0x80000000L
/*
* Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
* when just a single record has been written):
*/
# define SSL_MODE_ENABLE_PARTIAL_WRITE 0x00000001L
/*
* Make it possible to retry SSL_write() with changed buffer location (buffer
* contents must stay the same!); this is not the default to avoid the
* misconception that non-blocking SSL_write() behaves like non-blocking
* write():
*/
# define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002L
/*
* Never bother the application with retries if the transport is blocking:
*/
# define SSL_MODE_AUTO_RETRY 0x00000004L
/* Don't attempt to automatically build certificate chain */
# define SSL_MODE_NO_AUTO_CHAIN 0x00000008L
/*
* Save RAM by releasing read and write buffers when they're empty. (SSL3 and
* TLS only.) "Released" buffers are put onto a free-list in the context or
* just freed (depending on the context's setting for freelist_max_len).
*/
# define SSL_MODE_RELEASE_BUFFERS 0x00000010L
/*
* Send the current time in the Random fields of the ClientHello and
* ServerHello records for compatibility with hypothetical implementations
* that require it.
*/
# define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020L
# define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040L
/*
* Send TLS_FALLBACK_SCSV in the ClientHello. To be set only by applications
* that reconnect with a downgraded protocol version; see
* draft-ietf-tls-downgrade-scsv-00 for details. DO NOT ENABLE THIS if your
* application attempts a normal handshake. Only use this in explicit
* fallback retries, following the guidance in
* draft-ietf-tls-downgrade-scsv-00.
*/
# define SSL_MODE_SEND_FALLBACK_SCSV 0x00000080L
/*
* Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value, they
* cannot be used to clear bits.
*/
# define SSL_CTX_set_options(ctx,op) \
SSL_CTX_ctrl((ctx),SSL_CTRL_OPTIONS,(op),NULL)
# define SSL_CTX_clear_options(ctx,op) \
SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_OPTIONS,(op),NULL)
# define SSL_CTX_get_options(ctx) \
SSL_CTX_ctrl((ctx),SSL_CTRL_OPTIONS,0,NULL)
# define SSL_set_options(ssl,op) \
SSL_ctrl((ssl),SSL_CTRL_OPTIONS,(op),NULL)
# define SSL_clear_options(ssl,op) \
SSL_ctrl((ssl),SSL_CTRL_CLEAR_OPTIONS,(op),NULL)
# define SSL_get_options(ssl) \
SSL_ctrl((ssl),SSL_CTRL_OPTIONS,0,NULL)
# define SSL_CTX_set_mode(ctx,op) \
SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,(op),NULL)
# define SSL_CTX_clear_mode(ctx,op) \
SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_MODE,(op),NULL)
# define SSL_CTX_get_mode(ctx) \
SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,0,NULL)
# define SSL_clear_mode(ssl,op) \
SSL_ctrl((ssl),SSL_CTRL_CLEAR_MODE,(op),NULL)
# define SSL_set_mode(ssl,op) \
SSL_ctrl((ssl),SSL_CTRL_MODE,(op),NULL)
# define SSL_get_mode(ssl) \
SSL_ctrl((ssl),SSL_CTRL_MODE,0,NULL)
# define SSL_set_mtu(ssl, mtu) \
SSL_ctrl((ssl),SSL_CTRL_SET_MTU,(mtu),NULL)
# define DTLS_set_link_mtu(ssl, mtu) \
SSL_ctrl((ssl),DTLS_CTRL_SET_LINK_MTU,(mtu),NULL)
# define DTLS_get_link_min_mtu(ssl) \
SSL_ctrl((ssl),DTLS_CTRL_GET_LINK_MIN_MTU,0,NULL)
# define SSL_get_secure_renegotiation_support(ssl) \
SSL_ctrl((ssl), SSL_CTRL_GET_RI_SUPPORT, 0, NULL)
# ifndef OPENSSL_NO_HEARTBEATS
# define SSL_heartbeat(ssl) \
SSL_ctrl((ssl),SSL_CTRL_TLS_EXT_SEND_HEARTBEAT,0,NULL)
# endif
void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
void (*cb) (int write_p, int version,
int content_type, const void *buf,
size_t len, SSL *ssl, void *arg));
void SSL_set_msg_callback(SSL *ssl,
void (*cb) (int write_p, int version,
int content_type, const void *buf,
size_t len, SSL *ssl, void *arg));
# define SSL_CTX_set_msg_callback_arg(ctx, arg) SSL_CTX_ctrl((ctx), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
# define SSL_set_msg_callback_arg(ssl, arg) SSL_ctrl((ssl), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
# ifndef OPENSSL_NO_SRP
# ifndef OPENSSL_NO_SSL_INTERN
typedef struct srp_ctx_st {
/* param for all the callbacks */
void *SRP_cb_arg;
/* set client Hello login callback */
int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
/* set SRP N/g param callback for verification */
int (*SRP_verify_param_callback) (SSL *, void *);
/* set SRP client passwd callback */
char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
char *login;
BIGNUM *N, *g, *s, *B, *A;
BIGNUM *a, *b, *v;
char *info;
int strength;
unsigned long srp_Mask;
} SRP_CTX;
# endif
/* see tls_srp.c */
int SSL_SRP_CTX_init(SSL *s);
int SSL_CTX_SRP_CTX_init(SSL_CTX *ctx);
int SSL_SRP_CTX_free(SSL *ctx);
int SSL_CTX_SRP_CTX_free(SSL_CTX *ctx);
int SSL_srp_server_param_with_username(SSL *s, int *ad);
int SRP_generate_server_master_secret(SSL *s, unsigned char *master_key);
int SRP_Calc_A_param(SSL *s);
int SRP_generate_client_master_secret(SSL *s, unsigned char *master_key);
# endif
# if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32)
# define SSL_MAX_CERT_LIST_DEFAULT 1024*30
/* 30k max cert list :-) */
# else
# define SSL_MAX_CERT_LIST_DEFAULT 1024*100
/* 100k max cert list :-) */
# endif
# define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT (1024*20)
/*
* This callback type is used inside SSL_CTX, SSL, and in the functions that
* set them. It is used to override the generation of SSL/TLS session IDs in
* a server. Return value should be zero on an error, non-zero to proceed.
* Also, callbacks should themselves check if the id they generate is unique
* otherwise the SSL handshake will fail with an error - callbacks can do
* this using the 'ssl' value they're passed by;
* SSL_has_matching_session_id(ssl, id, *id_len) The length value passed in
* is set at the maximum size the session ID can be. In SSLv2 this is 16
* bytes, whereas SSLv3/TLSv1 it is 32 bytes. The callback can alter this
* length to be less if desired, but under SSLv2 session IDs are supposed to
* be fixed at 16 bytes so the id will be padded after the callback returns
* in this case. It is also an error for the callback to set the size to
* zero.
*/
typedef int (*GEN_SESSION_CB) (const SSL *ssl, unsigned char *id,
unsigned int *id_len);
typedef struct ssl_comp_st SSL_COMP;
# ifndef OPENSSL_NO_SSL_INTERN
struct ssl_comp_st {
int id;
const char *name;
# ifndef OPENSSL_NO_COMP
COMP_METHOD *method;
# else
char *method;
# endif
};
DECLARE_STACK_OF(SSL_COMP)
DECLARE_LHASH_OF(SSL_SESSION);
struct ssl_ctx_st {
const SSL_METHOD *method;
STACK_OF(SSL_CIPHER) *cipher_list;
/* same as above but sorted for lookup */
STACK_OF(SSL_CIPHER) *cipher_list_by_id;
struct x509_store_st /* X509_STORE */ *cert_store;
LHASH_OF(SSL_SESSION) *sessions;
/*
* Most session-ids that will be cached, default is
* SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
*/
unsigned long session_cache_size;
struct ssl_session_st *session_cache_head;
struct ssl_session_st *session_cache_tail;
/*
* This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
* SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
* means only SSL_accept which cache SSL_SESSIONS.
*/
int session_cache_mode;
/*
* If timeout is not 0, it is the default timeout value set when
* SSL_new() is called. This has been put in to make life easier to set
* things up
*/
long session_timeout;
/*
* If this callback is not null, it will be called each time a session id
* is added to the cache. If this function returns 1, it means that the
* callback will do a SSL_SESSION_free() when it has finished using it.
* Otherwise, on 0, it means the callback has finished with it. If
* remove_session_cb is not null, it will be called when a session-id is
* removed from the cache. After the call, OpenSSL will
* SSL_SESSION_free() it.
*/
int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
unsigned char *data, int len, int *copy);
struct {
int sess_connect; /* SSL new conn - started */
int sess_connect_renegotiate; /* SSL reneg - requested */
int sess_connect_good; /* SSL new conne/reneg - finished */
int sess_accept; /* SSL new accept - started */
int sess_accept_renegotiate; /* SSL reneg - requested */
int sess_accept_good; /* SSL accept/reneg - finished */
int sess_miss; /* session lookup misses */
int sess_timeout; /* reuse attempt on timeouted session */
int sess_cache_full; /* session removed due to full cache */
int sess_hit; /* session reuse actually done */
int sess_cb_hit; /* session-id that was not in the cache was
* passed back via the callback. This
* indicates that the application is
* supplying session-id's from other
* processes - spooky :-) */
} stats;
int references;
/* if defined, these override the X509_verify_cert() calls */
int (*app_verify_callback) (X509_STORE_CTX *, void *);
void *app_verify_arg;
/*
* before OpenSSL 0.9.7, 'app_verify_arg' was ignored
* ('app_verify_callback' was called with just one argument)
*/
/* Default password callback. */
pem_password_cb *default_passwd_callback;
/* Default password callback user data. */
void *default_passwd_callback_userdata;
/* get client cert callback */
int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
/* cookie generate callback */
int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
unsigned int *cookie_len);
/* verify cookie callback */
int (*app_verify_cookie_cb) (SSL *ssl, unsigned char *cookie,
unsigned int cookie_len);
CRYPTO_EX_DATA ex_data;
const EVP_MD *rsa_md5; /* For SSLv2 - name is 'ssl2-md5' */
const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
STACK_OF(X509) *extra_certs;
STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
/* Default values used when no per-SSL value is defined follow */
/* used if SSL's info_callback is NULL */
void (*info_callback) (const SSL *ssl, int type, int val);
/* what we put in client cert requests */
STACK_OF(X509_NAME) *client_CA;
/*
* Default values to use in SSL structures follow (these are copied by
* SSL_new)
*/
unsigned long options;
unsigned long mode;
long max_cert_list;
struct cert_st /* CERT */ *cert;
int read_ahead;
/* callback that allows applications to peek at protocol messages */
void (*msg_callback) (int write_p, int version, int content_type,
const void *buf, size_t len, SSL *ssl, void *arg);
void *msg_callback_arg;
int verify_mode;
unsigned int sid_ctx_length;
unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
/* called 'verify_callback' in the SSL */
int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
/* Default generate session ID callback. */
GEN_SESSION_CB generate_session_id;
X509_VERIFY_PARAM *param;
# if 0
int purpose; /* Purpose setting */
int trust; /* Trust setting */
# endif
int quiet_shutdown;
/*
* Maximum amount of data to send in one fragment. actual record size can
* be more than this due to padding and MAC overheads.
*/
unsigned int max_send_fragment;
# ifndef OPENSSL_NO_ENGINE
/*
* Engine to pass requests for client certs to
*/
ENGINE *client_cert_engine;
# endif
# ifndef OPENSSL_NO_TLSEXT
/* TLS extensions servername callback */
int (*tlsext_servername_callback) (SSL *, int *, void *);
void *tlsext_servername_arg;
/* RFC 4507 session ticket keys */
unsigned char tlsext_tick_key_name[16];
unsigned char tlsext_tick_hmac_key[16];
unsigned char tlsext_tick_aes_key[16];
/* Callback to support customisation of ticket key setting */
int (*tlsext_ticket_key_cb) (SSL *ssl,
unsigned char *name, unsigned char *iv,
EVP_CIPHER_CTX *ectx,
HMAC_CTX *hctx, int enc);
/* certificate status request info */
/* Callback for status request */
int (*tlsext_status_cb) (SSL *ssl, void *arg);
void *tlsext_status_arg;
/* draft-rescorla-tls-opaque-prf-input-00.txt information */
int (*tlsext_opaque_prf_input_callback) (SSL *, void *peerinput,
size_t len, void *arg);
void *tlsext_opaque_prf_input_callback_arg;
# endif
# ifndef OPENSSL_NO_PSK
char *psk_identity_hint;
unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,