aboutsummaryrefslogtreecommitdiff
path: root/src/daemon/https/gnutls.h
blob: ed939584820a91a86c4d68d522d57785839c3220 (plain) (blame)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
/* -*- c -*-
 * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation
 *
 * Author: Nikos Mavroyanopoulos
 *
 * This file is part of GNUTLS.
 *
 * The GNUTLS library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 * USA
 *
 */

/* This file contains the types and prototypes for all the
 * high level functionality of gnutls main library. For the
 * extra functionality (which is under the GNU GPL license) check
 * the gnutls/extra.h header. The openssl compatibility layer is
 * in gnutls/openssl.h.
 *
 * The low level cipher functionality is in libgcrypt. Check
 * gcrypt.h
 */

#ifndef GNUTLS_H
#define GNUTLS_H

#ifdef __cplusplus
extern "C"
{
#endif

#define LIBGNUTLS_VERSION "2.2.3"

/* Get size_t. */
#include <stddef.h>

#define GNUTLS_CIPHER_RIJNDAEL_128_CBC GNUTLS_CIPHER_AES_128_CBC
#define GNUTLS_CIPHER_RIJNDAEL_256_CBC GNUTLS_CIPHER_AES_256_CBC
#define GNUTLS_CIPHER_RIJNDAEL_CBC GNUTLS_CIPHER_AES_128_CBC
#define GNUTLS_CIPHER_ARCFOUR GNUTLS_CIPHER_ARCFOUR_128

#define GNUTLS_MAX_SESSION_ID 32
#define TLS_MASTER_SIZE 48
#define TLS_RANDOM_SIZE 32

#include "microhttpd.h"

  typedef enum
  {
    GNUTLS_PARAMS_RSA_EXPORT = 1,
    GNUTLS_PARAMS_DH
  } gnutls_params_type_t;

  /* exported for other gnutls headers. This is the maximum number of
   * algorithms (ciphers, kx or macs).
   */
#define GNUTLS_MAX_ALGORITHM_NUM 16
#define GNUTLS_COMP_ZLIB GNUTLS_COMP_DEFLATE

  typedef enum
  {
    GNUTLS_SERVER = 1,
    GNUTLS_CLIENT
  } gnutls_connection_end_t;

  typedef enum
  {
    GNUTLS_AL_WARNING = 1,
    GNUTLS_AL_FATAL
  } gnutls_alert_level_t;

  typedef enum
  {
    GNUTLS_A_CLOSE_NOTIFY,
    GNUTLS_A_UNEXPECTED_MESSAGE = 10,
    GNUTLS_A_BAD_RECORD_MAC = 20,
    GNUTLS_A_DECRYPTION_FAILED,
    GNUTLS_A_RECORD_OVERFLOW,
    GNUTLS_A_DECOMPRESSION_FAILURE = 30,
    GNUTLS_A_HANDSHAKE_FAILURE = 40,
    GNUTLS_A_SSL3_NO_CERTIFICATE = 41,
    GNUTLS_A_BAD_CERTIFICATE = 42,
    GNUTLS_A_UNSUPPORTED_CERTIFICATE,
    GNUTLS_A_CERTIFICATE_REVOKED,
    GNUTLS_A_CERTIFICATE_EXPIRED,
    GNUTLS_A_CERTIFICATE_UNKNOWN,
    GNUTLS_A_ILLEGAL_PARAMETER,
    GNUTLS_A_UNKNOWN_CA,
    GNUTLS_A_ACCESS_DENIED,
    GNUTLS_A_DECODE_ERROR = 50,
    GNUTLS_A_DECRYPT_ERROR,
    GNUTLS_A_EXPORT_RESTRICTION = 60,
    GNUTLS_A_PROTOCOL_VERSION = 70,
    GNUTLS_A_INSUFFICIENT_SECURITY,
    GNUTLS_A_INTERNAL_ERROR = 80,
    GNUTLS_A_USER_CANCELED = 90,
    GNUTLS_A_NO_RENEGOTIATION = 100,
    GNUTLS_A_UNSUPPORTED_EXTENSION = 110,
    GNUTLS_A_CERTIFICATE_UNOBTAINABLE = 111,
    GNUTLS_A_UNRECOGNIZED_NAME = 112,
    GNUTLS_A_UNKNOWN_PSK_IDENTITY = 115,
  } gnutls_alert_description_t;

  typedef enum
  { GNUTLS_HANDSHAKE_HELLO_REQUEST = 0,
    GNUTLS_HANDSHAKE_CLIENT_HELLO = 1,
    GNUTLS_HANDSHAKE_SERVER_HELLO = 2,
    GNUTLS_HANDSHAKE_CERTIFICATE_PKT = 11,
    GNUTLS_HANDSHAKE_SERVER_KEY_EXCHANGE = 12,
    GNUTLS_HANDSHAKE_CERTIFICATE_REQUEST = 13,
    GNUTLS_HANDSHAKE_SERVER_HELLO_DONE = 14,
    GNUTLS_HANDSHAKE_CERTIFICATE_VERIFY = 15,
    GNUTLS_HANDSHAKE_CLIENT_KEY_EXCHANGE = 16,
    GNUTLS_HANDSHAKE_FINISHED = 20,
    GNUTLS_HANDSHAKE_SUPPLEMENTAL = 23
  } gnutls_handshake_description_t;

  typedef enum
  {
    GNUTLS_CERT_INVALID = 2,    /* will be set if the certificate
                                 * was not verified.
                                 */
    GNUTLS_CERT_REVOKED = 32,   /* in X.509 this will be set only if CRLs are checked
                                 */

    /* Those are extra information about the verification
     * process. Will be set only if the certificate was
     * not verified.
     */
    GNUTLS_CERT_SIGNER_NOT_FOUND = 64,
    GNUTLS_CERT_SIGNER_NOT_CA = 128,
    GNUTLS_CERT_INSECURE_ALGORITHM = 256
  } gnutls_certificate_status_t;

  typedef enum
  {
    GNUTLS_CERT_IGNORE,
    GNUTLS_CERT_REQUEST = 1,
    GNUTLS_CERT_REQUIRE
  } gnutls_certificate_request_t;

  typedef enum
  {
    GNUTLS_SHUT_RDWR = 0,
    GNUTLS_SHUT_WR = 1
  } gnutls_close_request_t;

  typedef enum
  {
    GNUTLS_X509_FMT_DER,
    GNUTLS_X509_FMT_PEM
  } gnutls_x509_crt_fmt_t;

  typedef enum
  {
    GNUTLS_SIGN_UNKNOWN = 0,
    GNUTLS_SIGN_RSA_SHA1 = 1,
    GNUTLS_SIGN_DSA_SHA1,
    GNUTLS_SIGN_RSA_MD5,
    GNUTLS_SIGN_RSA_MD2,
    GNUTLS_SIGN_RSA_RMD160,
    GNUTLS_SIGN_RSA_SHA256,
    GNUTLS_SIGN_RSA_SHA384,
    GNUTLS_SIGN_RSA_SHA512
  } gnutls_sign_algorithm_t;

/* If you want to change this, then also change the define in
 * gnutls_int.h, and recompile.
 */
  typedef void *gnutls_transport_ptr_t;

  struct MHD_gtls_session_int;
  typedef struct MHD_gtls_session_int *mhd_gtls_session_t;

  struct MHD_gtls_dh_params_int;
  typedef struct MHD_gtls_dh_params_int *mhd_gtls_dh_params_t;

  struct MHD_gtls_x509_privkey_int;     /* XXX ugly. */
  typedef struct MHD_gtls_x509_privkey_int *mhd_gtls_rsa_params_t;      /* XXX ugly. */

  struct MHD_gtls_priority_st;
  typedef struct MHD_gtls_priority_st *gnutls_priority_t;

  typedef struct
  {
    unsigned char *data;
    unsigned int size;
  } gnutls_datum_t;


  typedef struct gnutls_params_st
  {
    gnutls_params_type_t type;
    union params
    {
      mhd_gtls_dh_params_t dh;
      mhd_gtls_rsa_params_t rsa_export;
    } params;
    int deinit;
  } gnutls_params_st;

  typedef int gnutls_params_function (mhd_gtls_session_t,
                                      gnutls_params_type_t,
                                      gnutls_params_st *);

/* internal functions */
  int MHD_gnutls_global_init (void);
  void MHD_gnutls_global_deinit (void);

  int MHD_gnutls_init (mhd_gtls_session_t * session,
                       gnutls_connection_end_t con_end);
  void MHD_gnutls_deinit (mhd_gtls_session_t session);

  int MHD_gnutls_bye (mhd_gtls_session_t session, gnutls_close_request_t how);
  int MHD_gnutls_handshake (mhd_gtls_session_t session);
  int MHD_gnutls_rehandshake (mhd_gtls_session_t session);

  int mhd_gtls_handshake_client (mhd_gtls_session_t session);

  gnutls_alert_description_t gnutls_alert_get (mhd_gtls_session_t session);
  int MHD_gnutls_alert_send (mhd_gtls_session_t session,
                             gnutls_alert_level_t level,
                             gnutls_alert_description_t desc);
  int MHD_gnutls_alert_send_appropriate (mhd_gtls_session_t session, int err);
  const char *MHD_gnutls_alert_get_name (gnutls_alert_description_t alert);

  enum MHD_GNUTLS_CompressionMethod MHD_gtls_compression_get (mhd_gtls_session_t
                                                        session);
//  enum MHD_GNUTLS_CipherAlgorithm gnutls_cipher_get (mhd_gtls_session_t session);
//  enum MHD_GNUTLS_KeyExchangeAlgorithm gnutls_kx_get (mhd_gtls_session_t session);
//  enum MHD_GNUTLS_HashAlgorithm gnutls_mac_get (mhd_gtls_session_t session);
//  enum MHD_GNUTLS_CertificateType gnutls_certificate_type_get (mhd_gtls_session_t
//                                                         session);

  size_t MHD_gnutls_cipher_get_key_size (enum MHD_GNUTLS_CipherAlgorithm
                                         algorithm);
  size_t MHD_gnutls_mac_get_key_size (enum MHD_GNUTLS_HashAlgorithm
                                      algorithm);

/* the name of the specified algorithms */
  const char *MHD_gnutls_cipher_get_name (enum MHD_GNUTLS_CipherAlgorithm
                                          algorithm);
  const char *MHD_gnutls_mac_get_name (enum MHD_GNUTLS_HashAlgorithm
                                       algorithm);
  const char *MHD_gtls_compression_get_name (enum
                                               MHD_GNUTLS_CompressionMethod
                                               algorithm);
  const char *MHD_gnutls_kx_get_name (enum MHD_GNUTLS_KeyExchangeAlgorithm
                                      algorithm);
  const char *MHD_gnutls_certificate_type_get_name (enum
                                                    MHD_GNUTLS_CertificateType
                                                    type);

  enum MHD_GNUTLS_HashAlgorithm MHD_gtls_mac_get_id (const char *name);
  enum MHD_GNUTLS_CompressionMethod MHD_gtls_compression_get_id (const char
                                                                 *name);
  enum MHD_GNUTLS_CipherAlgorithm MHD_gtls_cipher_get_id (const char *name);
  enum MHD_GNUTLS_KeyExchangeAlgorithm MHD_gtls_kx_get_id (const char *name);
  enum MHD_GNUTLS_Protocol MHD_gtls_protocol_get_id (const char *name);
  enum MHD_GNUTLS_CertificateType MHD_gtls_certificate_type_get_id (const char
                                                                    *name);

  /* list supported algorithms */
  const enum MHD_GNUTLS_CipherAlgorithm *MHD_gtls_cipher_list (void);
  const enum MHD_GNUTLS_HashAlgorithm *MHD_gtls_mac_list (void);
  const enum MHD_GNUTLS_CompressionMethod *MHD_gtls_compression_list (void);
  const enum MHD_GNUTLS_Protocol *MHD_gtls_protocol_list (void);
  const enum MHD_GNUTLS_CertificateType
    *MHD_gtls_certificate_type_list (void);
  const enum MHD_GNUTLS_KeyExchangeAlgorithm *MHD_gtls_kx_list (void);

  /* error functions */
  int MHD_gtls_error_is_fatal (int error);
  int MHD_gtls_error_to_alert (int err, int *level);
  void MHD_gtls_perror (int error);
  const char *MHD_gtls_strerror (int error);

  void MHD_gtls_handshake_set_private_extensions (mhd_gtls_session_t session,
                                                  int allow);
    gnutls_handshake_description_t
    MHD_gtls_handshake_get_last_out (mhd_gtls_session_t session);
    gnutls_handshake_description_t
    MHD_gtls_handshake_get_last_in (mhd_gtls_session_t session);

/*
 * Record layer functions.
 */
  ssize_t MHD_gnutls_record_send (mhd_gtls_session_t session,
                                  const void *data, size_t sizeofdata);
  ssize_t MHD_gnutls_record_recv (mhd_gtls_session_t session, void *data,
                                  size_t sizeofdata);

  /* provides extra compatibility */
  void MHD_gtls_record_disable_padding (mhd_gtls_session_t session);
  size_t MHD_gtls_record_check_pending (mhd_gtls_session_t session);

  int MHD_gnutls_record_get_direction (mhd_gtls_session_t session);
  size_t MHD_gnutls_record_get_max_size (mhd_gtls_session_t session);
  ssize_t MHD_gnutls_record_set_max_size (mhd_gtls_session_t session,
                                          size_t size);


  int MHD_gnutls_prf (mhd_gtls_session_t session,
                      size_t label_size, const char *label,
                      int server_random_first,
                      size_t extra_size, const char *extra,
                      size_t outsize, char *out);

  int MHD_gnutls_prf_raw (mhd_gtls_session_t session,
                          size_t label_size, const char *label,
                          size_t seed_size, const char *seed,
                          size_t outsize, char *out);

/*
 * TLS Extensions
 */
  typedef enum
  {
    GNUTLS_NAME_DNS = 1
  } gnutls_server_name_type_t;

  int MHD_gnutls_server_name_set (mhd_gtls_session_t session,
                                  gnutls_server_name_type_t type,
                                  const void *name, size_t name_length);

  int MHD_gnutls_server_name_get (mhd_gtls_session_t session,
                                  void *data, size_t * data_length,
                                  unsigned int *type, unsigned int indx);

  /* Opaque PRF Input
   * http://tools.ietf.org/id/draft-rescorla-tls-opaque-prf-input-00.txt
   */

  void
    MHD_gtls_oprfi_enable_client (mhd_gtls_session_t session,
                                  size_t len, unsigned char *data);

  typedef int (*gnutls_oprfi_callback_func) (mhd_gtls_session_t session,
                                             void *userdata,
                                             size_t oprfi_len,
                                             const unsigned char *in_oprfi,
                                             unsigned char *out_oprfi);

  void
    MHD_gtls_oprfi_enable_server (mhd_gtls_session_t session,
                                  gnutls_oprfi_callback_func cb,
                                  void *userdata);

  /* Supplemental data, RFC 4680. */
  typedef enum
  {
    GNUTLS_SUPPLEMENTAL_USER_MAPPING_DATA = 0
  } gnutls_supplemental_data_format_type_t;

  const char *MHD_gtls_supplemental_get_name
    (gnutls_supplemental_data_format_type_t type);

  int MHD_gnutls_cipher_set_priority (mhd_gtls_session_t session,
                                      const int *list);
  int MHD_gnutls_mac_set_priority (mhd_gtls_session_t session,
                                   const int *list);
  int MHD_gnutls_compression_set_priority (mhd_gtls_session_t session,
                                           const int *list);
  int MHD_gnutls_kx_set_priority (mhd_gtls_session_t session,
                                  const int *list);
  int MHD_gnutls_protocol_set_priority (mhd_gtls_session_t session,
                                        const int *list);
  int MHD_gnutls_certificate_type_set_priority (mhd_gtls_session_t session,
                                                const int *list);

  int MHD_tls_set_default_priority (gnutls_priority_t *, const char *priority,
                                    const char **err_pos);
  void MHD_gnutls_priority_deinit (gnutls_priority_t);

  int MHD_gnutls_priority_set (mhd_gtls_session_t session, gnutls_priority_t);
  int MHD_gnutls_priority_set_direct (mhd_gtls_session_t session,
                                      const char *priority,
                                      const char **err_pos);

/* get the currently used protocol version */
  enum MHD_GNUTLS_Protocol MHD_gnutls_protocol_get_version (mhd_gtls_session_t
                                                            session);

  const char *MHD_gnutls_protocol_get_name (enum MHD_GNUTLS_Protocol version);

/*
 * get/set session
 */
//  int gnutls_session_set_data (mhd_gtls_session_t session,
//                               const void *session_data,
//                               size_t session_data_size);
//  int gnutls_session_get_data (mhd_gtls_session_t session, void *session_data,
//                               size_t * session_data_size);
//  int gnutls_session_get_data2 (mhd_gtls_session_t session,
//                                gnutls_datum_t * data);

  int MHD_gtls_session_get_id (mhd_gtls_session_t session, void *session_id,
                               size_t * session_id_size);

/* returns security values.
 * Do not use them unless you know what you're doing.
 */
  const void *MHD_gtls_session_get_server_random (mhd_gtls_session_t session);
  const void *MHD_gtls_session_get_client_random (mhd_gtls_session_t session);
  const void *MHD_gtls_session_get_master_secret (mhd_gtls_session_t session);

  int MHD_gtls_session_is_resumed (mhd_gtls_session_t session);

  typedef int (*gnutls_handshake_post_client_hello_func) (mhd_gtls_session_t);
  void
    MHD_gnutls_handshake_set_post_client_hello_function (mhd_gtls_session_t,
                                                         gnutls_handshake_post_client_hello_func);

  void MHD_gnutls_handshake_set_max_packet_length (mhd_gtls_session_t session,
                                                   size_t max);

/*
 * Functions for setting/clearing credentials
 */
  void MHD_gnutls_credentials_clear (mhd_gtls_session_t session);

/*
 * cred is a structure defined by the kx algorithm
 */
  int MHD_gnutls_credentials_set (mhd_gtls_session_t session,
                                  enum MHD_GNUTLS_CredentialsType type,
                                  void *cred);

/* Credential structures - used in MHD_gnutls_credentials_set(); */
  struct mhd_gtls_certificate_credentials_st;
  typedef struct mhd_gtls_certificate_credentials_st
    *mhd_gtls_cert_credentials_t;
  typedef mhd_gtls_cert_credentials_t mhd_gtls_cert_server_credentials;
  typedef mhd_gtls_cert_credentials_t mhd_gtls_cert_client_credentials;

  typedef struct mhd_gtls_anon_server_credentials_st
    *mhd_gtls_anon_server_credentials_t;
  typedef struct mhd_gtls_anon_client_credentials_st
    *mhd_gtls_anon_client_credentials_t;

  void
    MHD_gnutls_anon_free_server_credentials
    (mhd_gtls_anon_server_credentials_t sc);
  int
    MHD_gnutls_anon_allocate_server_credentials
    (mhd_gtls_anon_server_credentials_t * sc);

  void
    MHD_gnutls_anon_set_server_dh_params (mhd_gtls_anon_server_credentials_t
                                          res,
                                          mhd_gtls_dh_params_t dh_params);

  void
    MHD_gnutls_anon_set_server_params_function
    (mhd_gtls_anon_server_credentials_t res, gnutls_params_function * func);

  void
    MHD_gnutls_anon_free_client_credentials
    (mhd_gtls_anon_client_credentials_t sc);
  int
    MHD_gnutls_anon_allocate_client_credentials
    (mhd_gtls_anon_client_credentials_t * sc);

  void MHD_gnutls_certificate_free_credentials (mhd_gtls_cert_credentials_t
                                                sc);
  int
    MHD_gnutls_certificate_allocate_credentials (mhd_gtls_cert_credentials_t
                                                 * res);

  void MHD_gnutls_certificate_free_keys (mhd_gtls_cert_credentials_t sc);
  void MHD_gnutls_certificate_free_cas (mhd_gtls_cert_credentials_t sc);
  void MHD_gnutls_certificate_free_ca_names (mhd_gtls_cert_credentials_t sc);
  void MHD_gnutls_certificate_free_crls (mhd_gtls_cert_credentials_t sc);

  void MHD_gnutls_certificate_set_dh_params (mhd_gtls_cert_credentials_t res,
                                             mhd_gtls_dh_params_t dh_params);
  void
    MHD_gnutls_certificate_set_rsa_export_params (mhd_gtls_cert_credentials_t
                                                  res,
                                                  mhd_gtls_rsa_params_t
                                                  rsa_params);
  void MHD_gnutls_certificate_set_verify_flags (mhd_gtls_cert_credentials_t
                                                res, unsigned int flags);
  void MHD_gnutls_certificate_set_verify_limits (mhd_gtls_cert_credentials_t
                                                 res, unsigned int max_bits,
                                                 unsigned int max_depth);

  int MHD_gnutls_certificate_set_x509_trust_file (mhd_gtls_cert_credentials_t
                                                  res, const char *CAFILE,
                                                  gnutls_x509_crt_fmt_t type);
  int MHD_gnutls_certificate_set_x509_trust_mem (mhd_gtls_cert_credentials_t
                                                 res,
                                                 const gnutls_datum_t * CA,
                                                 gnutls_x509_crt_fmt_t type);

  int MHD_gnutls_certificate_set_x509_crl_file (mhd_gtls_cert_credentials_t
                                                res, const char *crlfile,
                                                gnutls_x509_crt_fmt_t type);
  int MHD_gnutls_certificate_set_x509_crl_mem (mhd_gtls_cert_credentials_t
                                               res,
                                               const gnutls_datum_t * CRL,
                                               gnutls_x509_crt_fmt_t type);

  /*
   * CERTFILE is an x509 certificate in PEM form.
   * KEYFILE is a pkcs-1 private key in PEM form (for RSA keys).
   */
  int MHD_gnutls_certificate_set_x509_key_file (mhd_gtls_cert_credentials_t
                                                res, const char *CERTFILE,
                                                const char *KEYFILE,
                                                gnutls_x509_crt_fmt_t type);
  int MHD_gnutls_certificate_set_x509_key_mem (mhd_gtls_cert_credentials_t
                                               res,
                                               const gnutls_datum_t * CERT,
                                               const gnutls_datum_t * KEY,
                                               gnutls_x509_crt_fmt_t type);

  void MHD_gnutls_certificate_send_x509_rdn_sequence (mhd_gtls_session_t
                                                      session, int status);

/*
 * New functions to allow setting already parsed X.509 stuff.
 */
  struct MHD_gtls_x509_privkey_int;
  typedef struct MHD_gtls_x509_privkey_int *gnutls_x509_privkey_t;

  struct gnutls_x509_crl_int;
  typedef struct gnutls_x509_crl_int *gnutls_x509_crl_t;

  struct gnutls_x509_crt_int;
  typedef struct gnutls_x509_crt_int *gnutls_x509_crt_t;

//  int gnutls_certificate_set_x509_key (mhd_gtls_cert_credentials_t res,
//                                       gnutls_x509_crt_t * cert_list,
//                                       int cert_list_size,
//                                       gnutls_x509_privkey_t key);
//  int gnutls_certificate_set_x509_trust (mhd_gtls_cert_credentials_t res,
//                                         gnutls_x509_crt_t * ca_list,
//                                         int ca_list_size);
//  int gnutls_certificate_set_x509_crl (mhd_gtls_cert_credentials_t res,
//                                       gnutls_x509_crl_t * crl_list,
//                                       int crl_list_size);

/* global state functions
 */


  typedef void *(*gnutls_alloc_function) (size_t);
  typedef void *(*gnutls_calloc_function) (size_t, size_t);
  typedef int (*gnutls_is_secure_function) (const void *);
  typedef void (*gnutls_free_function) (void *);
  typedef void *(*gnutls_realloc_function) (void *, size_t);

  extern void
    MHD_gtls_global_set_mem_functions (gnutls_alloc_function gt_alloc_func,
                                       gnutls_alloc_function
                                       gt_secure_alloc_func,
                                       gnutls_is_secure_function
                                       gt_is_secure_func,
                                       gnutls_realloc_function
                                       gt_realloc_func,
                                       gnutls_free_function gt_free_func);

/* For use in callbacks */
  extern gnutls_alloc_function gnutls_malloc;
  extern gnutls_alloc_function gnutls_secure_malloc;
  extern gnutls_realloc_function gnutls_realloc;
  extern gnutls_calloc_function gnutls_calloc;
  extern gnutls_free_function gnutls_free;

  extern char *(*gnutls_strdup) (const char *);

  typedef void (*gnutls_log_func) (int, const char *);
  void MHD_gtls_global_set_log_function (gnutls_log_func log_func);
  void MHD_gtls_global_set_log_level (int level);

/*
 * Diffie Hellman parameter handling.
 */
  int MHD_gnutls_dh_params_init (mhd_gtls_dh_params_t * dh_params);
  void MHD_gnutls_dh_params_deinit (mhd_gtls_dh_params_t dh_params);
  int MHD_gnutls_dh_params_generate2 (mhd_gtls_dh_params_t params,
                                      unsigned int bits);


/* RSA params */
  int MHD_gnutls_rsa_params_init (mhd_gtls_rsa_params_t * rsa_params);
  void MHD_gnutls_rsa_params_deinit (mhd_gtls_rsa_params_t rsa_params);
  int MHD_gnutls_rsa_params_generate2 (mhd_gtls_rsa_params_t params,
                                       unsigned int bits);


/*
 * Session stuff
 */
  typedef ssize_t (*mhd_gtls_pull_func) (gnutls_transport_ptr_t, void *,
                                         size_t);
  typedef ssize_t (*mhd_gtls_push_func) (gnutls_transport_ptr_t, const void *,
                                         size_t);
  void MHD_gnutls_transport_set_ptr (mhd_gtls_session_t session,
                                     gnutls_transport_ptr_t ptr);
  void MHD_gnutls_transport_set_ptr2 (mhd_gtls_session_t session,
                                      gnutls_transport_ptr_t recv_ptr,
                                      gnutls_transport_ptr_t send_ptr);

  void MHD_gnutls_transport_set_lowat (mhd_gtls_session_t session, int num);


  void MHD_gnutls_transport_set_push_function (mhd_gtls_session_t session,
                                               mhd_gtls_push_func push_func);
  void MHD_gnutls_transport_set_pull_function (mhd_gtls_session_t session,
                                               mhd_gtls_pull_func pull_func);

  void MHD_gnutls_transport_set_errno (mhd_gtls_session_t session, int err);
  void MHD_gnutls_transport_set_global_errno (int err);

/*
 * session specific
 */
  void MHD_gnutls_session_set_ptr (mhd_gtls_session_t session, void *ptr);
  void *MHD_gtls_session_get_ptr (mhd_gtls_session_t session);

/*
 * this function returns the hash of the given data.
 */
  int MHD_gnutls_fingerprint (enum MHD_GNUTLS_HashAlgorithm algo,
                              const gnutls_datum_t * data, void *result,
                              size_t * result_size);

/*
 *  SRP
 */
//  typedef struct gnutls_srp_server_credentials_st
//    *gnutls_srp_server_credentials_t;
//  typedef struct gnutls_srp_client_credentials_st
//    *gnutls_srp_client_credentials_t;
//
//  void gnutls_srp_free_client_credentials (gnutls_srp_client_credentials_t
//                                           sc);
//  int gnutls_srp_allocate_client_credentials (gnutls_srp_client_credentials_t
//                                              * sc);
//  int gnutls_srp_set_client_credentials (gnutls_srp_client_credentials_t res,
//                                         const char *username,
//                                         const char *password);
//
//  void gnutls_srp_free_server_credentials (gnutls_srp_server_credentials_t
//                                           sc);
//  int gnutls_srp_allocate_server_credentials (gnutls_srp_server_credentials_t
//                                              * sc);
//  int gnutls_srp_set_server_credentials_file (gnutls_srp_server_credentials_t
//                                              res, const char *password_file,
//                                              const char *password_conf_file);
//
//  const char *gnutls_srp_server_get_username (mhd_gtls_session_t session);
//
//  extern int gnutls_srp_verifier (const char *username,
//                                  const char *password,
//                                  const gnutls_datum_t * salt,
//                                  const gnutls_datum_t * generator,
//                                  const gnutls_datum_t * prime,
//                                  gnutls_datum_t * res);
//
///* The static parameters defined in draft-ietf-tls-srp-05
// * Those should be used as input to gnutls_srp_verifier().
// */
//  extern const gnutls_datum_t gnutls_srp_2048_group_prime;
//  extern const gnutls_datum_t gnutls_srp_2048_group_generator;
//
//  extern const gnutls_datum_t gnutls_srp_1536_group_prime;
//  extern const gnutls_datum_t gnutls_srp_1536_group_generator;
//
//  extern const gnutls_datum_t gnutls_srp_1024_group_prime;
//  extern const gnutls_datum_t gnutls_srp_1024_group_generator;
//
//  typedef int gnutls_srp_server_credentials_function (mhd_gtls_session_t,
//                                                      const char *username,
//                                                      gnutls_datum_t * salt,
//                                                      gnutls_datum_t *
//                                                      verifier,
//                                                      gnutls_datum_t *
//                                                      generator,
//                                                      gnutls_datum_t * prime);
//  void
//    gnutls_srp_set_server_credentials_function
//    (gnutls_srp_server_credentials_t cred,
//     gnutls_srp_server_credentials_function * func);
//
//  typedef int gnutls_srp_client_credentials_function (mhd_gtls_session_t,
//                                                      char **, char **);
//  void
//    gnutls_srp_set_client_credentials_function
//    (gnutls_srp_client_credentials_t cred,
//     gnutls_srp_client_credentials_function * func);
//
//  int gnutls_srp_base64_encode (const gnutls_datum_t * data, char *result,
//                                size_t * result_size);
//  int gnutls_srp_base64_encode_alloc (const gnutls_datum_t * data,
//                                      gnutls_datum_t * result);
//
//  int gnutls_srp_base64_decode (const gnutls_datum_t * b64_data, char *result,
//                                size_t * result_size);
//  int gnutls_srp_base64_decode_alloc (const gnutls_datum_t * b64_data,
//                                      gnutls_datum_t * result);

/*
 * PSK stuff
 */
//  typedef struct gnutls_psk_server_credentials_st
//    *gnutls_psk_server_credentials_t;
//  typedef struct gnutls_psk_client_credentials_st
//    *gnutls_psk_client_credentials_t;
//
//  typedef enum gnutls_psk_key_flags
//  {
//    GNUTLS_PSK_KEY_RAW = 0,
//    GNUTLS_PSK_KEY_HEX
//  } gnutls_psk_key_flags;
//
//  void gnutls_psk_free_client_credentials (gnutls_psk_client_credentials_t
//                                           sc);
//  int gnutls_psk_allocate_client_credentials (gnutls_psk_client_credentials_t
//                                              * sc);
//  int gnutls_psk_set_client_credentials (gnutls_psk_client_credentials_t res,
//                                         const char *username,
//                                         const gnutls_datum_t * key,
//                                         gnutls_psk_key_flags format);
//
//  void gnutls_psk_free_server_credentials (gnutls_psk_server_credentials_t
//                                           sc);
//  int gnutls_psk_allocate_server_credentials (gnutls_psk_server_credentials_t
//                                              * sc);
//  int gnutls_psk_set_server_credentials_file (gnutls_psk_server_credentials_t
//                                              res, const char *password_file);
//
//  const char *gnutls_psk_server_get_username (mhd_gtls_session_t session);
//
//  typedef int gnutls_psk_server_credentials_function (mhd_gtls_session_t,
//                                                      const char *username,
//                                                      gnutls_datum_t * key);
//  void
//    gnutls_psk_set_server_credentials_function
//    (gnutls_psk_server_credentials_t cred,
//     gnutls_psk_server_credentials_function * func);
//
//  typedef int gnutls_psk_client_credentials_function (mhd_gtls_session_t,
//                                                      char **username,
//                                                      gnutls_datum_t * key);
//  void
//    gnutls_psk_set_client_credentials_function
//    (gnutls_psk_client_credentials_t cred,
//     gnutls_psk_client_credentials_function * func);
//
//  int gnutls_hex_encode (const gnutls_datum_t * data, char *result,
//                         size_t * result_size);
//  int gnutls_hex_decode (const gnutls_datum_t * hex_data, char *result,
//                         size_t * result_size);
//
//  void gnutls_psk_set_server_dh_params (gnutls_psk_server_credentials_t res,
//                                        mhd_gtls_dh_params_t dh_params);
//
//  void gnutls_psk_set_server_params_function (gnutls_psk_server_credentials_t
//                                              res,
//                                              gnutls_params_function * func);

  typedef enum gnutls_x509_subject_alt_name_t
  {
    GNUTLS_SAN_DNSNAME = 1,
    GNUTLS_SAN_RFC822NAME,
    GNUTLS_SAN_URI,
    GNUTLS_SAN_IPADDRESS,
    GNUTLS_SAN_OTHERNAME,
    GNUTLS_SAN_DN,
    /* The following are "virtual" subject alternative name types, in
       that they are represented by an otherName value and an OID.
       Used by gnutls_x509_crt_get_subject_alt_othername_oid().  */
    GNUTLS_SAN_OTHERNAME_XMPP = 1000
  } gnutls_x509_subject_alt_name_t;

  typedef struct gnutls_retr_st
  {
    enum MHD_GNUTLS_CertificateType type;
    union cert
    {
      gnutls_x509_crt_t *x509;
    } cert;
    unsigned int ncerts;

    union key
    {
      gnutls_x509_privkey_t x509;
    } key;

    unsigned int deinit_all;    /* if non zero all keys will be deinited */
  } gnutls_retr_st;

  typedef int gnutls_certificate_client_retrieve_function (mhd_gtls_session_t,
                                                           const
                                                           gnutls_datum_t *
                                                           req_ca_rdn,
                                                           int nreqs,
                                                           const
                                                           enum
                                                           MHD_GNUTLS_PublicKeyAlgorithm
                                                           *pk_algos,
                                                           int
                                                           pk_algos_length,
                                                           gnutls_retr_st *);

  typedef int gnutls_certificate_server_retrieve_function (mhd_gtls_session_t,
                                                           gnutls_retr_st *);

  /*
   * Functions that allow auth_info_t structures handling
   */
  enum MHD_GNUTLS_CredentialsType MHD_gtls_auth_get_type (mhd_gtls_session_t
                                                          session);
  enum MHD_GNUTLS_CredentialsType
    MHD_gtls_auth_server_get_type (mhd_gtls_session_t session);
  enum MHD_GNUTLS_CredentialsType
    MHD_gtls_auth_client_get_type (mhd_gtls_session_t session);

  /*
   * DH
   */
  void MHD_gnutls_dh_set_prime_bits (mhd_gtls_session_t session,
                                     unsigned int bits);
  int MHD_gnutls_dh_get_secret_bits (mhd_gtls_session_t session);
  int MHD_gnutls_dh_get_peers_public_bits (mhd_gtls_session_t session);
  int MHD_gnutls_dh_get_prime_bits (mhd_gtls_session_t session);

  int MHD_gnutls_dh_get_group (mhd_gtls_session_t session,
                               gnutls_datum_t * raw_gen,
                               gnutls_datum_t * raw_prime);
  int MHD_gnutls_dh_get_pubkey (mhd_gtls_session_t session,
                                gnutls_datum_t * raw_key);

  /*
   * RSA
   */
  int MHD_gtls_rsa_export_get_pubkey (mhd_gtls_session_t session,
                                      gnutls_datum_t * exponent,
                                      gnutls_datum_t * modulus);
  int MHD_gtls_rsa_export_get_modulus_bits (mhd_gtls_session_t session);

  /* External signing callback.  Experimental. */
  typedef int (*gnutls_sign_func) (mhd_gtls_session_t session,
                                   void *userdata,
                                   enum MHD_GNUTLS_CertificateType cert_type,
                                   const gnutls_datum_t * cert,
                                   const gnutls_datum_t * hash,
                                   gnutls_datum_t * signature);

  void MHD_gtls_sign_callback_set (mhd_gtls_session_t session,
                                   gnutls_sign_func sign_func,
                                   void *userdata);
    gnutls_sign_func MHD_gtls_sign_callback_get (mhd_gtls_session_t session,
                                                 void **userdata);

  /* These are set on the credentials structure.
   */
  void MHD_gtls_certificate_client_set_retrieve_function
    (mhd_gtls_cert_credentials_t cred,
     gnutls_certificate_client_retrieve_function * func);
  void MHD_gtls_certificate_server_set_retrieve_function
    (mhd_gtls_cert_credentials_t cred,
     gnutls_certificate_server_retrieve_function * func);

  void MHD_gtls_certificate_server_set_request (mhd_gtls_session_t session,
                                                gnutls_certificate_request_t
                                                req);

  /* get data from the session */
  const gnutls_datum_t *MHD_gtls_certificate_get_peers (mhd_gtls_session_t
                                                        session,
                                                        unsigned int
                                                        *list_size);
  const gnutls_datum_t *MHD_gtls_certificate_get_ours (mhd_gtls_session_t
                                                       session);

  time_t MHD_gtls_certificate_activation_time_peers (mhd_gtls_session_t
                                                     session);
  time_t MHD_gtls_certificate_expiration_time_peers (mhd_gtls_session_t
                                                     session);

  int MHD_gtls_certificate_client_get_request_status (mhd_gtls_session_t
                                                      session);
  int MHD_gtls_certificate_verify_peers2 (mhd_gtls_session_t session,
                                          unsigned int *status);

  /* this is obsolete (?). */
  int MHD_gtls_certificate_verify_peers (mhd_gtls_session_t session);

  int MHD_gtls_pem_base64_encode (const char *msg,
                                  const gnutls_datum_t * data, char *result,
                                  size_t * result_size);
  int MHD_gtls_pem_base64_decode (const char *header,
                                  const gnutls_datum_t * b64_data,
                                  unsigned char *result,
                                  size_t * result_size);

  int MHD_gtls_pem_base64_encode_alloc (const char *msg,
                                        const gnutls_datum_t * data,
                                        gnutls_datum_t * result);
  int MHD_gtls_pem_base64_decode_alloc (const char *header,
                                        const gnutls_datum_t * b64_data,
                                        gnutls_datum_t * result);

  //  void
  //    gnutls_certificate_set_params_function (mhd_gtls_cert_credentials_t
  //                                            res,
  //                                            gnutls_params_function * func);
  //  void gnutls_anon_set_params_function (mhd_gtls_anon_server_credentials_t res,
  //                                        gnutls_params_function * func);
  //  void gnutls_psk_set_params_function (gnutls_psk_server_credentials_t res,
  //                                       gnutls_params_function * func);


  /* key_usage will be an OR of the following values: */
  /* when the key is to be used for signing: */
#define GNUTLS_KEY_DIGITAL_SIGNATURE	128
#define GNUTLS_KEY_NON_REPUDIATION	64
  /* when the key is to be used for encryption: */
#define GNUTLS_KEY_KEY_ENCIPHERMENT	32
#define GNUTLS_KEY_DATA_ENCIPHERMENT	16
#define GNUTLS_KEY_KEY_AGREEMENT	8
#define GNUTLS_KEY_KEY_CERT_SIGN	4
#define GNUTLS_KEY_CRL_SIGN		2
#define GNUTLS_KEY_ENCIPHER_ONLY	1
#define GNUTLS_KEY_DECIPHER_ONLY	32768

  /*
   * Error codes. TLS alert mapping shown in comments.
   */
#define GNUTLS_E_SUCCESS 0
#define	GNUTLS_E_UNKNOWN_COMPRESSION_ALGORITHM -3
#define	GNUTLS_E_UNKNOWN_CIPHER_TYPE -6
#define	GNUTLS_E_LARGE_PACKET -7
#define GNUTLS_E_UNSUPPORTED_VERSION_PACKET -8  /* GNUTLS_A_PROTOCOL_VERSION */
#define GNUTLS_E_UNEXPECTED_PACKET_LENGTH -9    /* GNUTLS_A_RECORD_OVERFLOW */
#define GNUTLS_E_INVALID_SESSION -10
#define GNUTLS_E_FATAL_ALERT_RECEIVED -12
#define GNUTLS_E_UNEXPECTED_PACKET -15  /* GNUTLS_A_UNEXPECTED_MESSAGE */
#define GNUTLS_E_WARNING_ALERT_RECEIVED -16
#define GNUTLS_E_ERROR_IN_FINISHED_PACKET -18
#define GNUTLS_E_UNEXPECTED_HANDSHAKE_PACKET -19
#define	GNUTLS_E_UNKNOWN_CIPHER_SUITE -21       /* GNUTLS_A_HANDSHAKE_FAILURE */
#define	GNUTLS_E_UNWANTED_ALGORITHM -22
#define	GNUTLS_E_MPI_SCAN_FAILED -23
#define GNUTLS_E_DECRYPTION_FAILED -24  /* GNUTLS_A_DECRYPTION_FAILED, GNUTLS_A_BAD_RECORD_MAC */
#define GNUTLS_E_MEMORY_ERROR -25
#define GNUTLS_E_DECOMPRESSION_FAILED -26       /* GNUTLS_A_DECOMPRESSION_FAILURE */
#define GNUTLS_E_COMPRESSION_FAILED -27
#define GNUTLS_E_AGAIN -28
#define GNUTLS_E_EXPIRED -29
#define GNUTLS_E_DB_ERROR -30
#define GNUTLS_E_SRP_PWD_ERROR -31
#define GNUTLS_E_INSUFFICIENT_CREDENTIALS -32
#define GNUTLS_E_INSUFICIENT_CREDENTIALS GNUTLS_E_INSUFFICIENT_CREDENTIALS      /* for backwards compatibility only */
#define GNUTLS_E_INSUFFICIENT_CRED GNUTLS_E_INSUFFICIENT_CREDENTIALS
#define GNUTLS_E_INSUFICIENT_CRED GNUTLS_E_INSUFFICIENT_CREDENTIALS     /* for backwards compatibility only */

#define GNUTLS_E_HASH_FAILED -33
#define GNUTLS_E_BASE64_DECODING_ERROR -34

#define	GNUTLS_E_MPI_PRINT_FAILED -35
#define GNUTLS_E_REHANDSHAKE -37        /* GNUTLS_A_NO_RENEGOTIATION */
#define GNUTLS_E_GOT_APPLICATION_DATA -38
#define GNUTLS_E_RECORD_LIMIT_REACHED -39
#define GNUTLS_E_ENCRYPTION_FAILED -40

#define GNUTLS_E_PK_ENCRYPTION_FAILED -44
#define GNUTLS_E_PK_DECRYPTION_FAILED -45
#define GNUTLS_E_PK_SIGN_FAILED -46
#define GNUTLS_E_X509_UNSUPPORTED_CRITICAL_EXTENSION -47
#define GNUTLS_E_KEY_USAGE_VIOLATION -48
#define GNUTLS_E_NO_CERTIFICATE_FOUND -49       /* GNUTLS_A_BAD_CERTIFICATE */
#define GNUTLS_E_INVALID_REQUEST -50
#define GNUTLS_E_SHORT_MEMORY_BUFFER -51
#define GNUTLS_E_INTERRUPTED -52
#define GNUTLS_E_PUSH_ERROR -53
#define GNUTLS_E_PULL_ERROR -54
#define GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER -55 /* GNUTLS_A_ILLEGAL_PARAMETER */
#define GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE -56
#define GNUTLS_E_PKCS1_WRONG_PAD -57
#define GNUTLS_E_RECEIVED_ILLEGAL_EXTENSION -58
#define GNUTLS_E_INTERNAL_ERROR -59
#define GNUTLS_E_DH_PRIME_UNACCEPTABLE -63
#define GNUTLS_E_FILE_ERROR -64
#define GNUTLS_E_TOO_MANY_EMPTY_PACKETS -78
#define GNUTLS_E_UNKNOWN_PK_ALGORITHM -80


  /* returned if libextra functionality was requested but
   * gnutls_global_init_extra() was not called.
   */
#define GNUTLS_E_INIT_LIBEXTRA -82
#define GNUTLS_E_LIBRARY_VERSION_MISMATCH -83


  /* returned if you need to generate temporary RSA
   * parameters. These are needed for export cipher suites.
   */
#define GNUTLS_E_NO_TEMPORARY_RSA_PARAMS -84

#define GNUTLS_E_LZO_INIT_FAILED -85
#define GNUTLS_E_NO_COMPRESSION_ALGORITHMS -86
#define GNUTLS_E_NO_CIPHER_SUITES -87

#define GNUTLS_E_PK_SIG_VERIFY_FAILED -89

#define GNUTLS_E_ILLEGAL_SRP_USERNAME -90
#define GNUTLS_E_SRP_PWD_PARSING_ERROR -91
#define GNUTLS_E_NO_TEMPORARY_DH_PARAMS -93

  /* For certificate and key stuff
   */
#define GNUTLS_E_ASN1_ELEMENT_NOT_FOUND -67
#define GNUTLS_E_ASN1_IDENTIFIER_NOT_FOUND -68
#define GNUTLS_E_ASN1_DER_ERROR -69
#define GNUTLS_E_ASN1_VALUE_NOT_FOUND -70
#define GNUTLS_E_ASN1_GENERIC_ERROR -71
#define GNUTLS_E_ASN1_VALUE_NOT_VALID -72
#define GNUTLS_E_ASN1_TAG_ERROR -73
#define GNUTLS_E_ASN1_TAG_IMPLICIT -74
#define GNUTLS_E_ASN1_TYPE_ANY_ERROR -75
#define GNUTLS_E_ASN1_SYNTAX_ERROR -76
#define GNUTLS_E_ASN1_DER_OVERFLOW -77
#define GNUTLS_E_CERTIFICATE_ERROR -43
#define GNUTLS_E_X509_CERTIFICATE_ERROR GNUTLS_E_CERTIFICATE_ERROR
#define GNUTLS_E_CERTIFICATE_KEY_MISMATCH -60
#define GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE -61       /* GNUTLS_A_UNSUPPORTED_CERTIFICATE */
#define GNUTLS_E_X509_UNKNOWN_SAN -62
#define GNUTLS_E_X509_UNSUPPORTED_ATTRIBUTE -95
#define GNUTLS_E_UNKNOWN_HASH_ALGORITHM -96
#define GNUTLS_E_UNKNOWN_PKCS_CONTENT_TYPE -97
#define GNUTLS_E_UNKNOWN_PKCS_BAG_TYPE -98
#define GNUTLS_E_INVALID_PASSWORD -99
#define GNUTLS_E_MAC_VERIFY_FAILED -100 /* for PKCS #12 MAC */
#define GNUTLS_E_CONSTRAINT_ERROR -101

#define GNUTLS_E_WARNING_IA_IPHF_RECEIVED -102
#define GNUTLS_E_WARNING_IA_FPHF_RECEIVED -103

#define GNUTLS_E_IA_VERIFY_FAILED -104

#define GNUTLS_E_UNKNOWN_ALGORITHM -105

#define GNUTLS_E_BASE64_ENCODING_ERROR -201
#define GNUTLS_E_INCOMPATIBLE_GCRYPT_LIBRARY -202       /* obsolete */
#define GNUTLS_E_INCOMPATIBLE_CRYPTO_LIBRARY -202
#define GNUTLS_E_INCOMPATIBLE_LIBTASN1_LIBRARY -203

#define GNUTLS_E_X509_UNSUPPORTED_OID -205

#define GNUTLS_E_RANDOM_FAILED -206
#define GNUTLS_E_BASE64_UNEXPECTED_HEADER_ERROR -207


#define GNUTLS_E_UNIMPLEMENTED_FEATURE -1250

#define GNUTLS_E_APPLICATION_ERROR_MAX -65000
#define GNUTLS_E_APPLICATION_ERROR_MIN -65500

#ifdef __cplusplus
}
#endif

#endif                          /* GNUTLS_H */