aboutsummaryrefslogtreecommitdiff
path: root/fs/ksmbd/smb2pdu.h
blob: 4a3e4339d4c4f5525fa33541236e42bac741b35d (plain)
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
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *   Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org>
 *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
 */

#ifndef _SMB2PDU_H
#define _SMB2PDU_H

#include "ntlmssp.h"
#include "smbacl.h"

/*Create Action Flags*/
#define FILE_SUPERSEDED                0x00000000
#define FILE_OPENED            0x00000001
#define FILE_CREATED           0x00000002
#define FILE_OVERWRITTEN       0x00000003

/*
 * Size of the session key (crypto key encrypted with the password
 */
#define SMB2_NTLMV2_SESSKEY_SIZE	16
#define SMB2_SIGNATURE_SIZE		16
#define SMB2_HMACSHA256_SIZE		32
#define SMB2_CMACAES_SIZE		16
#define SMB3_GCM128_CRYPTKEY_SIZE	16
#define SMB3_GCM256_CRYPTKEY_SIZE	32

/*
 * Size of the smb3 encryption/decryption keys
 */
#define SMB3_ENC_DEC_KEY_SIZE		32

/*
 * Size of the smb3 signing key
 */
#define SMB3_SIGN_KEY_SIZE		16

#define CIFS_CLIENT_CHALLENGE_SIZE	8
#define SMB_SERVER_CHALLENGE_SIZE	8

/* SMB2 Max Credits */
#define SMB2_MAX_CREDITS		8192

/* Maximum buffer size value we can send with 1 credit */
#define SMB2_MAX_BUFFER_SIZE 65536

#define NUMBER_OF_SMB2_COMMANDS	0x0013

/* BB FIXME - analyze following length BB */
#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */

#define SMB21_DEFAULT_IOSIZE	(1024 * 1024)
#define SMB3_DEFAULT_IOSIZE	(4 * 1024 * 1024)
#define SMB3_DEFAULT_TRANS_SIZE	(1024 * 1024)
#define SMB3_MIN_IOSIZE	(64 * 1024)
#define SMB3_MAX_IOSIZE	(8 * 1024 * 1024)

/*
 *	Definitions for SMB2 Protocol Data Units (network frames)
 *
 *  See MS-SMB2.PDF specification for protocol details.
 *  The Naming convention is the lower case version of the SMB2
 *  command code name for the struct. Note that structures must be packed.
 *
 */

#define SMB2_ERROR_STRUCTURE_SIZE2	9
#define SMB2_ERROR_STRUCTURE_SIZE2_LE	cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)

struct smb2_err_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;
	__u8   ErrorContextCount;
	__u8   Reserved;
	__le32 ByteCount;  /* even if zero, at least one byte follows */
	__u8   ErrorData[1];  /* variable length */
} __packed;

struct preauth_integrity_info {
	/* PreAuth integrity Hash ID */
	__le16			Preauth_HashId;
	/* PreAuth integrity Hash Value */
	__u8			Preauth_HashValue[SMB2_PREAUTH_HASH_SIZE];
};

/* offset is sizeof smb2_negotiate_rsp but rounded up to 8 bytes. */
#ifdef CONFIG_SMB_SERVER_KERBEROS5
/* sizeof(struct smb2_negotiate_rsp) =
 * header(64) + response(64) + GSS_LENGTH(96) + GSS_PADDING(0)
 */
#define OFFSET_OF_NEG_CONTEXT	0xe0
#else
/* sizeof(struct smb2_negotiate_rsp) =
 * header(64) + response(64) + GSS_LENGTH(74) + GSS_PADDING(6)
 */
#define OFFSET_OF_NEG_CONTEXT	0xd0
#endif

#define SMB2_SESSION_EXPIRED		(0)
#define SMB2_SESSION_IN_PROGRESS	BIT(0)
#define SMB2_SESSION_VALID		BIT(1)

struct create_durable_req_v2 {
	struct create_context ccontext;
	__u8   Name[8];
	__le32 Timeout;
	__le32 Flags;
	__u8 Reserved[8];
	__u8 CreateGuid[16];
} __packed;

struct create_durable_reconn_req {
	struct create_context ccontext;
	__u8   Name[8];
	union {
		__u8  Reserved[16];
		struct {
			__le64 PersistentFileId;
			__le64 VolatileFileId;
		} Fid;
	} Data;
} __packed;

struct create_durable_reconn_v2_req {
	struct create_context ccontext;
	__u8   Name[8];
	struct {
		__le64 PersistentFileId;
		__le64 VolatileFileId;
	} Fid;
	__u8 CreateGuid[16];
	__le32 Flags;
} __packed;

struct create_app_inst_id {
	struct create_context ccontext;
	__u8 Name[8];
	__u8 Reserved[8];
	__u8 AppInstanceId[16];
} __packed;

struct create_app_inst_id_vers {
	struct create_context ccontext;
	__u8 Name[8];
	__u8 Reserved[2];
	__u8 Padding[4];
	__le64 AppInstanceVersionHigh;
	__le64 AppInstanceVersionLow;
} __packed;

struct create_mxac_req {
	struct create_context ccontext;
	__u8   Name[8];
	__le64 Timestamp;
} __packed;

struct create_alloc_size_req {
	struct create_context ccontext;
	__u8   Name[8];
	__le64 AllocationSize;
} __packed;

struct create_posix {
	struct create_context ccontext;
	__u8    Name[16];
	__le32  Mode;
	__u32   Reserved;
} __packed;

struct create_durable_rsp {
	struct create_context ccontext;
	__u8   Name[8];
	union {
		__u8  Reserved[8];
		__u64 data;
	} Data;
} __packed;

struct create_durable_v2_rsp {
	struct create_context ccontext;
	__u8   Name[8];
	__le32 Timeout;
	__le32 Flags;
} __packed;

struct create_mxac_rsp {
	struct create_context ccontext;
	__u8   Name[8];
	__le32 QueryStatus;
	__le32 MaximalAccess;
} __packed;

struct create_disk_id_rsp {
	struct create_context ccontext;
	__u8   Name[8];
	__le64 DiskFileId;
	__le64 VolumeId;
	__u8  Reserved[16];
} __packed;

/* equivalent of the contents of SMB3.1.1 POSIX open context response */
struct create_posix_rsp {
	struct create_context ccontext;
	__u8    Name[16];
	__le32 nlink;
	__le32 reparse_tag;
	__le32 mode;
	u8 SidBuffer[40];
} __packed;

#define SMB2_LEASE_NONE_LE			cpu_to_le32(0x00)
#define SMB2_LEASE_READ_CACHING_LE		cpu_to_le32(0x01)
#define SMB2_LEASE_HANDLE_CACHING_LE		cpu_to_le32(0x02)
#define SMB2_LEASE_WRITE_CACHING_LE		cpu_to_le32(0x04)

#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE	cpu_to_le32(0x02)

#define SMB2_LEASE_KEY_SIZE			16

struct lease_context {
	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
	__le32 LeaseState;
	__le32 LeaseFlags;
	__le64 LeaseDuration;
} __packed;

struct lease_context_v2 {
	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
	__le32 LeaseState;
	__le32 LeaseFlags;
	__le64 LeaseDuration;
	__u8 ParentLeaseKey[SMB2_LEASE_KEY_SIZE];
	__le16 Epoch;
	__le16 Reserved;
} __packed;

struct create_lease {
	struct create_context ccontext;
	__u8   Name[8];
	struct lease_context lcontext;
} __packed;

struct create_lease_v2 {
	struct create_context ccontext;
	__u8   Name[8];
	struct lease_context_v2 lcontext;
	__u8   Pad[4];
} __packed;

struct smb2_buffer_desc_v1 {
	__le64 offset;
	__le32 token;
	__le32 length;
} __packed;

#define SMB2_0_IOCTL_IS_FSCTL 0x00000001

struct duplicate_extents_to_file {
	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
	__u64 VolatileFileHandle;
	__le64 SourceFileOffset;
	__le64 TargetFileOffset;
	__le64 ByteCount;  /* Bytes to be copied */
} __packed;

struct smb2_ioctl_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 57 */
	__le16 Reserved; /* offset from start of SMB2 header to write data */
	__le32 CntCode;
	__le64  PersistentFileId;
	__le64  VolatileFileId;
	__le32 InputOffset; /* Reserved MBZ */
	__le32 InputCount;
	__le32 MaxInputResponse;
	__le32 OutputOffset;
	__le32 OutputCount;
	__le32 MaxOutputResponse;
	__le32 Flags;
	__le32 Reserved2;
	__u8   Buffer[1];
} __packed;

struct smb2_ioctl_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 49 */
	__le16 Reserved; /* offset from start of SMB2 header to write data */
	__le32 CntCode;
	__le64  PersistentFileId;
	__le64  VolatileFileId;
	__le32 InputOffset; /* Reserved MBZ */
	__le32 InputCount;
	__le32 OutputOffset;
	__le32 OutputCount;
	__le32 Flags;
	__le32 Reserved2;
	__u8   Buffer[1];
} __packed;

struct validate_negotiate_info_req {
	__le32 Capabilities;
	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
	__le16 SecurityMode;
	__le16 DialectCount;
	__le16 Dialects[1]; /* dialect (someday maybe list) client asked for */
} __packed;

struct validate_negotiate_info_rsp {
	__le32 Capabilities;
	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
	__le16 SecurityMode;
	__le16 Dialect; /* Dialect in use for the connection */
} __packed;

struct smb_sockaddr_in {
	__be16 Port;
	__be32 IPv4address;
	__u8 Reserved[8];
} __packed;

struct smb_sockaddr_in6 {
	__be16 Port;
	__be32 FlowInfo;
	__u8 IPv6address[16];
	__be32 ScopeId;
} __packed;

#define INTERNETWORK	0x0002
#define INTERNETWORKV6	0x0017

struct sockaddr_storage_rsp {
	__le16 Family;
	union {
		struct smb_sockaddr_in addr4;
		struct smb_sockaddr_in6 addr6;
	};
} __packed;

#define RSS_CAPABLE	0x00000001
#define RDMA_CAPABLE	0x00000002

struct network_interface_info_ioctl_rsp {
	__le32 Next; /* next interface. zero if this is last one */
	__le32 IfIndex;
	__le32 Capability; /* RSS or RDMA Capable */
	__le32 Reserved;
	__le64 LinkSpeed;
	char	SockAddr_Storage[128];
} __packed;

struct file_object_buf_type1_ioctl_rsp {
	__u8 ObjectId[16];
	__u8 BirthVolumeId[16];
	__u8 BirthObjectId[16];
	__u8 DomainId[16];
} __packed;

struct resume_key_ioctl_rsp {
	__le64 ResumeKey[3];
	__le32 ContextLength;
	__u8 Context[4]; /* ignored, Windows sets to 4 bytes of zero */
} __packed;

struct copychunk_ioctl_req {
	__le64 ResumeKey[3];
	__le32 ChunkCount;
	__le32 Reserved;
	__u8 Chunks[1]; /* array of srv_copychunk */
} __packed;

struct srv_copychunk {
	__le64 SourceOffset;
	__le64 TargetOffset;
	__le32 Length;
	__le32 Reserved;
} __packed;

struct copychunk_ioctl_rsp {
	__le32 ChunksWritten;
	__le32 ChunkBytesWritten;
	__le32 TotalBytesWritten;
} __packed;

struct file_sparse {
	__u8	SetSparse;
} __packed;

struct file_zero_data_information {
	__le64	FileOffset;
	__le64	BeyondFinalZero;
} __packed;

struct file_allocated_range_buffer {
	__le64	file_offset;
	__le64	length;
} __packed;

struct reparse_data_buffer {
	__le32	ReparseTag;
	__le16	ReparseDataLength;
	__u16	Reserved;
	__u8	DataBuffer[]; /* Variable Length */
} __packed;

/* SMB2 Notify Action Flags */
#define FILE_ACTION_ADDED		0x00000001
#define FILE_ACTION_REMOVED		0x00000002
#define FILE_ACTION_MODIFIED		0x00000003
#define FILE_ACTION_RENAMED_OLD_NAME	0x00000004
#define FILE_ACTION_RENAMED_NEW_NAME	0x00000005
#define FILE_ACTION_ADDED_STREAM	0x00000006
#define FILE_ACTION_REMOVED_STREAM	0x00000007
#define FILE_ACTION_MODIFIED_STREAM	0x00000008
#define FILE_ACTION_REMOVED_BY_DELETE	0x00000009

#define SMB2_LOCKFLAG_SHARED		0x0001
#define SMB2_LOCKFLAG_EXCLUSIVE		0x0002
#define SMB2_LOCKFLAG_UNLOCK		0x0004
#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
#define SMB2_LOCKFLAG_MASK		0x0007

struct smb2_lock_element {
	__le64 Offset;
	__le64 Length;
	__le32 Flags;
	__le32 Reserved;
} __packed;

struct smb2_lock_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 48 */
	__le16 LockCount;
	__le32 Reserved;
	__le64  PersistentFileId;
	__le64  VolatileFileId;
	/* Followed by at least one */
	struct smb2_lock_element locks[1];
} __packed;

struct smb2_lock_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 4 */
	__le16 Reserved;
} __packed;

struct smb2_echo_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 4 */
	__u16  Reserved;
} __packed;

struct smb2_echo_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 4 */
	__u16  Reserved;
} __packed;

/* search (query_directory) Flags field */
#define SMB2_RESTART_SCANS		0x01
#define SMB2_RETURN_SINGLE_ENTRY	0x02
#define SMB2_INDEX_SPECIFIED		0x04
#define SMB2_REOPEN			0x10

struct smb2_query_directory_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 33 */
	__u8   FileInformationClass;
	__u8   Flags;
	__le32 FileIndex;
	__le64  PersistentFileId;
	__le64  VolatileFileId;
	__le16 FileNameOffset;
	__le16 FileNameLength;
	__le32 OutputBufferLength;
	__u8   Buffer[1];
} __packed;

struct smb2_query_directory_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 9 */
	__le16 OutputBufferOffset;
	__le32 OutputBufferLength;
	__u8   Buffer[1];
} __packed;

/* Possible InfoType values */
#define SMB2_O_INFO_FILE	0x01
#define SMB2_O_INFO_FILESYSTEM	0x02
#define SMB2_O_INFO_SECURITY	0x03
#define SMB2_O_INFO_QUOTA	0x04

/* Security info type additionalinfo flags. See MS-SMB2 (2.2.37) or MS-DTYP */
#define OWNER_SECINFO   0x00000001
#define GROUP_SECINFO   0x00000002
#define DACL_SECINFO   0x00000004
#define SACL_SECINFO   0x00000008
#define LABEL_SECINFO   0x00000010
#define ATTRIBUTE_SECINFO   0x00000020
#define SCOPE_SECINFO   0x00000040
#define BACKUP_SECINFO   0x00010000
#define UNPROTECTED_SACL_SECINFO   0x10000000
#define UNPROTECTED_DACL_SECINFO   0x20000000
#define PROTECTED_SACL_SECINFO   0x40000000
#define PROTECTED_DACL_SECINFO   0x80000000

struct smb2_query_info_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 41 */
	__u8   InfoType;
	__u8   FileInfoClass;
	__le32 OutputBufferLength;
	__le16 InputBufferOffset;
	__u16  Reserved;
	__le32 InputBufferLength;
	__le32 AdditionalInformation;
	__le32 Flags;
	__le64  PersistentFileId;
	__le64  VolatileFileId;
	__u8   Buffer[1];
} __packed;

struct smb2_query_info_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 9 */
	__le16 OutputBufferOffset;
	__le32 OutputBufferLength;
	__u8   Buffer[1];
} __packed;

struct smb2_set_info_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 33 */
	__u8   InfoType;
	__u8   FileInfoClass;
	__le32 BufferLength;
	__le16 BufferOffset;
	__u16  Reserved;
	__le32 AdditionalInformation;
	__le64  PersistentFileId;
	__le64  VolatileFileId;
	__u8   Buffer[1];
} __packed;

struct smb2_set_info_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 2 */
} __packed;

/* FILE Info response size */
#define FILE_DIRECTORY_INFORMATION_SIZE       1
#define FILE_FULL_DIRECTORY_INFORMATION_SIZE  2
#define FILE_BOTH_DIRECTORY_INFORMATION_SIZE  3
#define FILE_BASIC_INFORMATION_SIZE           40
#define FILE_STANDARD_INFORMATION_SIZE        24
#define FILE_INTERNAL_INFORMATION_SIZE        8
#define FILE_EA_INFORMATION_SIZE              4
#define FILE_ACCESS_INFORMATION_SIZE          4
#define FILE_NAME_INFORMATION_SIZE            9
#define FILE_RENAME_INFORMATION_SIZE          10
#define FILE_LINK_INFORMATION_SIZE            11
#define FILE_NAMES_INFORMATION_SIZE           12
#define FILE_DISPOSITION_INFORMATION_SIZE     13
#define FILE_POSITION_INFORMATION_SIZE        14
#define FILE_FULL_EA_INFORMATION_SIZE         15
#define FILE_MODE_INFORMATION_SIZE            4
#define FILE_ALIGNMENT_INFORMATION_SIZE       4
#define FILE_ALL_INFORMATION_SIZE             104
#define FILE_ALLOCATION_INFORMATION_SIZE      19
#define FILE_END_OF_FILE_INFORMATION_SIZE     20
#define FILE_ALTERNATE_NAME_INFORMATION_SIZE  8
#define FILE_STREAM_INFORMATION_SIZE          32
#define FILE_PIPE_INFORMATION_SIZE            23
#define FILE_PIPE_LOCAL_INFORMATION_SIZE      24
#define FILE_PIPE_REMOTE_INFORMATION_SIZE     25
#define FILE_MAILSLOT_QUERY_INFORMATION_SIZE  26
#define FILE_MAILSLOT_SET_INFORMATION_SIZE    27
#define FILE_COMPRESSION_INFORMATION_SIZE     16
#define FILE_OBJECT_ID_INFORMATION_SIZE       29
/* Number 30 not defined in documents */
#define FILE_MOVE_CLUSTER_INFORMATION_SIZE    31
#define FILE_QUOTA_INFORMATION_SIZE           32
#define FILE_REPARSE_POINT_INFORMATION_SIZE   33
#define FILE_NETWORK_OPEN_INFORMATION_SIZE    56
#define FILE_ATTRIBUTE_TAG_INFORMATION_SIZE   8

/* FS Info response  size */
#define FS_DEVICE_INFORMATION_SIZE     8
#define FS_ATTRIBUTE_INFORMATION_SIZE  16
#define FS_VOLUME_INFORMATION_SIZE     24
#define FS_SIZE_INFORMATION_SIZE       24
#define FS_FULL_SIZE_INFORMATION_SIZE  32
#define FS_SECTOR_SIZE_INFORMATION_SIZE 28
#define FS_OBJECT_ID_INFORMATION_SIZE 64
#define FS_CONTROL_INFORMATION_SIZE 48
#define FS_POSIX_INFORMATION_SIZE 56

/* FS_ATTRIBUTE_File_System_Name */
#define FS_TYPE_SUPPORT_SIZE   44
struct fs_type_info {
	char		*fs_name;
	long		magic_number;
} __packed;

struct smb2_oplock_break {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 24 */
	__u8   OplockLevel;
	__u8   Reserved;
	__le32 Reserved2;
	__le64  PersistentFid;
	__le64  VolatileFid;
} __packed;

#define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)

struct smb2_lease_break {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 44 */
	__le16 Epoch;
	__le32 Flags;
	__u8   LeaseKey[16];
	__le32 CurrentLeaseState;
	__le32 NewLeaseState;
	__le32 BreakReason;
	__le32 AccessMaskHint;
	__le32 ShareMaskHint;
} __packed;

struct smb2_lease_ack {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 36 */
	__le16 Reserved;
	__le32 Flags;
	__u8   LeaseKey[16];
	__le32 LeaseState;
	__le64 LeaseDuration;
} __packed;

/*
 *	PDU infolevel structure definitions
 *	BB consider moving to a different header
 */

/* File System Information Classes */
#define FS_VOLUME_INFORMATION		1 /* Query */
#define FS_LABEL_INFORMATION		2 /* Set */
#define FS_SIZE_INFORMATION		3 /* Query */
#define FS_DEVICE_INFORMATION		4 /* Query */
#define FS_ATTRIBUTE_INFORMATION	5 /* Query */
#define FS_CONTROL_INFORMATION		6 /* Query, Set */
#define FS_FULL_SIZE_INFORMATION	7 /* Query */
#define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
#define FS_DRIVER_PATH_INFORMATION	9 /* Query */
#define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
#define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */

struct smb2_fs_full_size_info {
	__le64 TotalAllocationUnits;
	__le64 CallerAvailableAllocationUnits;
	__le64 ActualAvailableAllocationUnits;
	__le32 SectorsPerAllocationUnit;
	__le32 BytesPerSector;
} __packed;

#define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
#define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
#define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
#define SSINFO_FLAGS_TRIM_ENABLED		0x00000008

/* sector size info struct */
struct smb3_fs_ss_info {
	__le32 LogicalBytesPerSector;
	__le32 PhysicalBytesPerSectorForAtomicity;
	__le32 PhysicalBytesPerSectorForPerf;
	__le32 FSEffPhysicalBytesPerSectorForAtomicity;
	__le32 Flags;
	__le32 ByteOffsetForSectorAlignment;
	__le32 ByteOffsetForPartitionAlignment;
} __packed;

/* File System Control Information */
struct smb2_fs_control_info {
	__le64 FreeSpaceStartFiltering;
	__le64 FreeSpaceThreshold;
	__le64 FreeSpaceStopFiltering;
	__le64 DefaultQuotaThreshold;
	__le64 DefaultQuotaLimit;
	__le32 FileSystemControlFlags;
	__le32 Padding;
} __packed;

/* partial list of QUERY INFO levels */
#define FILE_DIRECTORY_INFORMATION	1
#define FILE_FULL_DIRECTORY_INFORMATION 2
#define FILE_BOTH_DIRECTORY_INFORMATION 3
#define FILE_BASIC_INFORMATION		4
#define FILE_STANDARD_INFORMATION	5
#define FILE_INTERNAL_INFORMATION	6
#define FILE_EA_INFORMATION	        7
#define FILE_ACCESS_INFORMATION		8
#define FILE_NAME_INFORMATION		9
#define FILE_RENAME_INFORMATION		10
#define FILE_LINK_INFORMATION		11
#define FILE_NAMES_INFORMATION		12
#define FILE_DISPOSITION_INFORMATION	13
#define FILE_POSITION_INFORMATION	14
#define FILE_FULL_EA_INFORMATION	15
#define FILE_MODE_INFORMATION		16
#define FILE_ALIGNMENT_INFORMATION	17
#define FILE_ALL_INFORMATION		18
#define FILE_ALLOCATION_INFORMATION	19
#define FILE_END_OF_FILE_INFORMATION	20
#define FILE_ALTERNATE_NAME_INFORMATION 21
#define FILE_STREAM_INFORMATION		22
#define FILE_PIPE_INFORMATION		23
#define FILE_PIPE_LOCAL_INFORMATION	24
#define FILE_PIPE_REMOTE_INFORMATION	25
#define FILE_MAILSLOT_QUERY_INFORMATION 26
#define FILE_MAILSLOT_SET_INFORMATION	27
#define FILE_COMPRESSION_INFORMATION	28
#define FILE_OBJECT_ID_INFORMATION	29
/* Number 30 not defined in documents */
#define FILE_MOVE_CLUSTER_INFORMATION	31
#define FILE_QUOTA_INFORMATION		32
#define FILE_REPARSE_POINT_INFORMATION	33
#define FILE_NETWORK_OPEN_INFORMATION	34
#define FILE_ATTRIBUTE_TAG_INFORMATION	35
#define FILE_TRACKING_INFORMATION	36
#define FILEID_BOTH_DIRECTORY_INFORMATION 37
#define FILEID_FULL_DIRECTORY_INFORMATION 38
#define FILE_VALID_DATA_LENGTH_INFORMATION 39
#define FILE_SHORT_NAME_INFORMATION	40
#define FILE_SFIO_RESERVE_INFORMATION	44
#define FILE_SFIO_VOLUME_INFORMATION	45
#define FILE_HARD_LINK_INFORMATION	46
#define FILE_NORMALIZED_NAME_INFORMATION 48
#define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
#define FILE_STANDARD_LINK_INFORMATION	54

#define OP_BREAK_STRUCT_SIZE_20		24
#define OP_BREAK_STRUCT_SIZE_21		36

struct smb2_file_access_info {
	__le32 AccessFlags;
} __packed;

struct smb2_file_alignment_info {
	__le32 AlignmentRequirement;
} __packed;

struct smb2_file_internal_info {
	__le64 IndexNumber;
} __packed; /* level 6 Query */

struct smb2_file_rename_info { /* encoding of request for level 10 */
	__u8   ReplaceIfExists; /* 1 = replace existing target with new */
				/* 0 = fail if target already exists */
	__u8   Reserved[7];
	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
	__le32 FileNameLength;
	char   FileName[0];     /* New name to be assigned */
} __packed; /* level 10 Set */

struct smb2_file_link_info { /* encoding of request for level 11 */
	__u8   ReplaceIfExists; /* 1 = replace existing link with new */
				/* 0 = fail if link already exists */
	__u8   Reserved[7];
	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
	__le32 FileNameLength;
	char   FileName[0];     /* Name to be assigned to new link */
} __packed; /* level 11 Set */

/*
 * This level 18, although with struct with same name is different from cifs
 * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
 * CurrentByteOffset.
 */
struct smb2_file_all_info { /* data block encoding of response to level 18 */
	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le32 Attributes;
	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
	__le64 EndOfFile;	/* size ie offset to first free byte in file */
	__le32 NumberOfLinks;	/* hard links */
	__u8   DeletePending;
	__u8   Directory;
	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
	__le64 IndexNumber;
	__le32 EASize;
	__le32 AccessFlags;
	__le64 CurrentByteOffset;
	__le32 Mode;
	__le32 AlignmentRequirement;
	__le32 FileNameLength;
	char   FileName[1];
} __packed; /* level 18 Query */

struct smb2_file_basic_info { /* data block encoding of response to level 18 */
	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le32 Attributes;
	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
} __packed;

struct smb2_file_alt_name_info {
	__le32 FileNameLength;
	char FileName[0];
} __packed;

struct smb2_file_stream_info {
	__le32  NextEntryOffset;
	__le32  StreamNameLength;
	__le64 StreamSize;
	__le64 StreamAllocationSize;
	char   StreamName[0];
} __packed;

struct smb2_file_eof_info { /* encoding of request for level 10 */
	__le64 EndOfFile; /* new end of file value */
} __packed; /* level 20 Set */

struct smb2_file_ntwrk_info {
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le64 AllocationSize;
	__le64 EndOfFile;
	__le32 Attributes;
	__le32 Reserved;
} __packed;

struct smb2_file_standard_info {
	__le64 AllocationSize;
	__le64 EndOfFile;
	__le32 NumberOfLinks;	/* hard links */
	__u8   DeletePending;
	__u8   Directory;
	__le16 Reserved;
} __packed; /* level 18 Query */

struct smb2_file_ea_info {
	__le32 EASize;
} __packed;

struct smb2_file_alloc_info {
	__le64 AllocationSize;
} __packed;

struct smb2_file_disposition_info {
	__u8 DeletePending;
} __packed;

struct smb2_file_pos_info {
	__le64 CurrentByteOffset;
} __packed;

#define FILE_MODE_INFO_MASK cpu_to_le32(0x0000100e)

struct smb2_file_mode_info {
	__le32 Mode;
} __packed;

#define COMPRESSION_FORMAT_NONE 0x0000
#define COMPRESSION_FORMAT_LZNT1 0x0002

struct smb2_file_comp_info {
	__le64 CompressedFileSize;
	__le16 CompressionFormat;
	__u8 CompressionUnitShift;
	__u8 ChunkShift;
	__u8 ClusterShift;
	__u8 Reserved[3];
} __packed;

struct smb2_file_attr_tag_info {
	__le32 FileAttributes;
	__le32 ReparseTag;
} __packed;

#define SL_RESTART_SCAN	0x00000001
#define SL_RETURN_SINGLE_ENTRY	0x00000002
#define SL_INDEX_SPECIFIED	0x00000004

struct smb2_ea_info_req {
	__le32 NextEntryOffset;
	__u8   EaNameLength;
	char name[1];
} __packed; /* level 15 Query */

struct smb2_ea_info {
	__le32 NextEntryOffset;
	__u8   Flags;
	__u8   EaNameLength;
	__le16 EaValueLength;
	char name[1];
	/* optionally followed by value */
} __packed; /* level 15 Query */

struct create_ea_buf_req {
	struct create_context ccontext;
	__u8   Name[8];
	struct smb2_ea_info ea;
} __packed;

struct create_sd_buf_req {
	struct create_context ccontext;
	__u8   Name[8];
	struct smb_ntsd ntsd;
} __packed;

/* Find File infolevels */
#define SMB_FIND_FILE_POSIX_INFO	0x064

/* Level 100 query info */
struct smb311_posix_qinfo {
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le64 EndOfFile;
	__le64 AllocationSize;
	__le32 DosAttributes;
	__le64 Inode;
	__le32 DeviceId;
	__le32 Zero;
	/* beginning of POSIX Create Context Response */
	__le32 HardLinks;
	__le32 ReparseTag;
	__le32 Mode;
	u8     Sids[];
	/*
	 * var sized owner SID
	 * var sized group SID
	 * le32 filenamelength
	 * u8  filename[]
	 */
} __packed;

struct smb2_posix_info {
	__le32 NextEntryOffset;
	__u32 Ignored;
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le64 EndOfFile;
	__le64 AllocationSize;
	__le32 DosAttributes;
	__le64 Inode;
	__le32 DeviceId;
	__le32 Zero;
	/* beginning of POSIX Create Context Response */
	__le32 HardLinks;
	__le32 ReparseTag;
	__le32 Mode;
	u8 SidBuffer[40];
	__le32 name_len;
	u8 name[1];
	/*
	 * var sized owner SID
	 * var sized group SID
	 * le32 filenamelength
	 * u8  filename[]
	 */
} __packed;

/* functions */
void init_smb2_1_server(struct ksmbd_conn *conn);
void init_smb3_0_server(struct ksmbd_conn *conn);
void init_smb3_02_server(struct ksmbd_conn *conn);
int init_smb3_11_server(struct ksmbd_conn *conn);

void init_smb2_max_read_size(unsigned int sz);
void init_smb2_max_write_size(unsigned int sz);
void init_smb2_max_trans_size(unsigned int sz);

bool is_smb2_neg_cmd(struct ksmbd_work *work);
bool is_smb2_rsp(struct ksmbd_work *work);

u16 get_smb2_cmd_val(struct ksmbd_work *work);
void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err);
int init_smb2_rsp_hdr(struct ksmbd_work *work);
int smb2_allocate_rsp_buf(struct ksmbd_work *work);
bool is_chained_smb2_message(struct ksmbd_work *work);
int init_smb2_neg_rsp(struct ksmbd_work *work);
void smb2_set_err_rsp(struct ksmbd_work *work);
int smb2_check_user_session(struct ksmbd_work *work);
int smb2_get_ksmbd_tcon(struct ksmbd_work *work);
bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command);
int smb2_check_sign_req(struct ksmbd_work *work);
void smb2_set_sign_rsp(struct ksmbd_work *work);
int smb3_check_sign_req(struct ksmbd_work *work);
void smb3_set_sign_rsp(struct ksmbd_work *work);
int find_matching_smb2_dialect(int start_index, __le16 *cli_dialects,
			       __le16 dialects_count);
struct file_lock *smb_flock_init(struct file *f);
int setup_async_work(struct ksmbd_work *work, void (*fn)(void **),
		     void **arg);
void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status);
struct channel *lookup_chann_list(struct ksmbd_session *sess,
				  struct ksmbd_conn *conn);
void smb3_preauth_hash_rsp(struct ksmbd_work *work);
bool smb3_is_transform_hdr(void *buf);
int smb3_decrypt_req(struct ksmbd_work *work);
int smb3_encrypt_resp(struct ksmbd_work *work);
bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work);
int smb2_set_rsp_credits(struct ksmbd_work *work);

/* smb2 misc functions */
int ksmbd_smb2_check_message(struct ksmbd_work *work);

/* smb2 command handlers */
int smb2_handle_negotiate(struct ksmbd_work *work);
int smb2_negotiate_request(struct ksmbd_work *work);
int smb2_sess_setup(struct ksmbd_work *work);
int smb2_tree_connect(struct ksmbd_work *work);
int smb2_tree_disconnect(struct ksmbd_work *work);
int smb2_session_logoff(struct ksmbd_work *work);
int smb2_open(struct ksmbd_work *work);
int smb2_query_info(struct ksmbd_work *work);
int smb2_query_dir(struct ksmbd_work *work);
int smb2_close(struct ksmbd_work *work);
int smb2_echo(struct ksmbd_work *work);
int smb2_set_info(struct ksmbd_work *work);
int smb2_read(struct ksmbd_work *work);
int smb2_write(struct ksmbd_work *work);
int smb2_flush(struct ksmbd_work *work);
int smb2_cancel(struct ksmbd_work *work);
int smb2_lock(struct ksmbd_work *work);
int smb2_ioctl(struct ksmbd_work *work);
int smb2_oplock_break(struct ksmbd_work *work);
int smb2_notify(struct ksmbd_work *ksmbd_work);

/*
 * Get the body of the smb2 message excluding the 4 byte rfc1002 headers
 * from request/response buffer.
 */
static inline void *smb2_get_msg(void *buf)
{
	return buf + 4;
}

#endif	/* _SMB2PDU_H */