aboutsummaryrefslogtreecommitdiffstats
path: root/fs/cifs/smb2pdu.h
blob: 36b0d37ea69b8d9f7bab7d1e1e3fcd167afe34e3 (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
/*
 *   fs/cifs/smb2pdu.h
 *
 *   Copyright (c) International Business Machines  Corp., 2009, 2013
 *                 Etersoft, 2012
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *              Pavel Shilovsky (pshilovsky@samba.org) 2012
 *
 *   This 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef _SMB2PDU_H
#define _SMB2PDU_H

#include <net/sock.h>

/*
 * Note that, due to trying to use names similar to the protocol specifications,
 * there are many mixed case field names in the structures below.  Although
 * this does not match typical Linux kernel style, it is necessary to be
 * be able to match against the protocol specfication.
 *
 * SMB2 commands
 * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
 * (ie no useful data other than the SMB error code itself) and are marked such.
 * Knowing this helps avoid response buffer allocations and copy in some cases.
 */

/* List of commands in host endian */
#define SMB2_NEGOTIATE_HE	0x0000
#define SMB2_SESSION_SETUP_HE	0x0001
#define SMB2_LOGOFF_HE		0x0002 /* trivial request/resp */
#define SMB2_TREE_CONNECT_HE	0x0003
#define SMB2_TREE_DISCONNECT_HE	0x0004 /* trivial req/resp */
#define SMB2_CREATE_HE		0x0005
#define SMB2_CLOSE_HE		0x0006
#define SMB2_FLUSH_HE		0x0007 /* trivial resp */
#define SMB2_READ_HE		0x0008
#define SMB2_WRITE_HE		0x0009
#define SMB2_LOCK_HE		0x000A
#define SMB2_IOCTL_HE		0x000B
#define SMB2_CANCEL_HE		0x000C
#define SMB2_ECHO_HE		0x000D
#define SMB2_QUERY_DIRECTORY_HE	0x000E
#define SMB2_CHANGE_NOTIFY_HE	0x000F
#define SMB2_QUERY_INFO_HE	0x0010
#define SMB2_SET_INFO_HE	0x0011
#define SMB2_OPLOCK_BREAK_HE	0x0012

/* The same list in little endian */
#define SMB2_NEGOTIATE		cpu_to_le16(SMB2_NEGOTIATE_HE)
#define SMB2_SESSION_SETUP	cpu_to_le16(SMB2_SESSION_SETUP_HE)
#define SMB2_LOGOFF		cpu_to_le16(SMB2_LOGOFF_HE)
#define SMB2_TREE_CONNECT	cpu_to_le16(SMB2_TREE_CONNECT_HE)
#define SMB2_TREE_DISCONNECT	cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
#define SMB2_CREATE		cpu_to_le16(SMB2_CREATE_HE)
#define SMB2_CLOSE		cpu_to_le16(SMB2_CLOSE_HE)
#define SMB2_FLUSH		cpu_to_le16(SMB2_FLUSH_HE)
#define SMB2_READ		cpu_to_le16(SMB2_READ_HE)
#define SMB2_WRITE		cpu_to_le16(SMB2_WRITE_HE)
#define SMB2_LOCK		cpu_to_le16(SMB2_LOCK_HE)
#define SMB2_IOCTL		cpu_to_le16(SMB2_IOCTL_HE)
#define SMB2_CANCEL		cpu_to_le16(SMB2_CANCEL_HE)
#define SMB2_ECHO		cpu_to_le16(SMB2_ECHO_HE)
#define SMB2_QUERY_DIRECTORY	cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
#define SMB2_CHANGE_NOTIFY	cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
#define SMB2_QUERY_INFO		cpu_to_le16(SMB2_QUERY_INFO_HE)
#define SMB2_SET_INFO		cpu_to_le16(SMB2_SET_INFO_HE)
#define SMB2_OPLOCK_BREAK	cpu_to_le16(SMB2_OPLOCK_BREAK_HE)

#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 SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe)

/*
 * SMB2 Header Definition
 *
 * "MBZ" :  Must be Zero
 * "BB"  :  BugBug, Something to check/review/analyze later
 * "PDU" :  "Protocol Data Unit" (ie a network "frame")
 *
 */

#define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64)

struct smb2_hdr {
	__be32 smb2_buf_length;	/* big endian on wire */
				/* length is only two or three bytes - with
				 one or two byte type preceding it that MBZ */
	__u8   ProtocolId[4];	/* 0xFE 'S' 'M' 'B' */
	__le16 StructureSize;	/* 64 */
	__le16 CreditCharge;	/* MBZ */
	__le32 Status;		/* Error from server */
	__le16 Command;
	__le16 CreditRequest;  /* CreditResponse */
	__le32 Flags;
	__le32 NextCommand;
	__u64  MessageId;	/* opaque - so can stay little endian */
	__le32 ProcessId;
	__u32  TreeId;		/* opaque - so do not make little endian */
	__u64  SessionId;	/* opaque - so do not make little endian */
	__u8   Signature[16];
} __packed;

struct smb2_pdu {
	struct smb2_hdr hdr;
	__le16 StructureSize2; /* size of wct area (varies, request specific) */
} __packed;

/*
 *	SMB2 flag definitions
 */
#define SMB2_FLAGS_SERVER_TO_REDIR	__constant_cpu_to_le32(0x00000001)
#define SMB2_FLAGS_ASYNC_COMMAND	__constant_cpu_to_le32(0x00000002)
#define SMB2_FLAGS_RELATED_OPERATIONS	__constant_cpu_to_le32(0x00000004)
#define SMB2_FLAGS_SIGNED		__constant_cpu_to_le32(0x00000008)
#define SMB2_FLAGS_DFS_OPERATIONS	__constant_cpu_to_le32(0x10000000)

/*
 *	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 __constant_cpu_to_le16(9)

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

#define SMB2_CLIENT_GUID_SIZE 16

extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];

struct smb2_negotiate_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 36 */
	__le16 DialectCount;
	__le16 SecurityMode;
	__le16 Reserved;	/* MBZ */
	__le32 Capabilities;
	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
	__le64 ClientStartTime;	/* MBZ */
	__le16 Dialects[1]; /* One dialect (vers=) at a time for now */
} __packed;

/* Dialects */
#define SMB20_PROT_ID 0x0202
#define SMB21_PROT_ID 0x0210
#define SMB30_PROT_ID 0x0300
#define SMB302_PROT_ID 0x0302
#define BAD_PROT_ID   0xFFFF

/* SecurityMode flags */
#define	SMB2_NEGOTIATE_SIGNING_ENABLED	0x0001
#define SMB2_NEGOTIATE_SIGNING_REQUIRED	0x0002
/* Capabilities flags */
#define SMB2_GLOBAL_CAP_DFS		0x00000001
#define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
#define SMB2_GLOBAL_CAP_LARGE_MTU	0X00000004 /* Resp only New to SMB2.1 */
#define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
#define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
/* Internal types */
#define SMB2_NT_FIND			0x00100000
#define SMB2_LARGE_FILES		0x00200000

struct smb2_negotiate_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 65 */
	__le16 SecurityMode;
	__le16 DialectRevision;
	__le16 Reserved;	/* MBZ */
	__u8   ServerGUID[16];
	__le32 Capabilities;
	__le32 MaxTransactSize;
	__le32 MaxReadSize;
	__le32 MaxWriteSize;
	__le64 SystemTime;	/* MBZ */
	__le64 ServerStartTime;
	__le16 SecurityBufferOffset;
	__le16 SecurityBufferLength;
	__le32 Reserved2;	/* may be any value, ignore */
	__u8   Buffer[1];	/* variable length GSS security buffer */
} __packed;

struct smb2_sess_setup_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 25 */
	__u8   VcNumber;
	__u8   SecurityMode;
	__le32 Capabilities;
	__le32 Channel;
	__le16 SecurityBufferOffset;
	__le16 SecurityBufferLength;
	__le64 PreviousSessionId;
	__u8   Buffer[1];	/* variable length GSS security buffer */
} __packed;

/* Currently defined SessionFlags */
#define SMB2_SESSION_FLAG_IS_GUEST	0x0001
#define SMB2_SESSION_FLAG_IS_NULL	0x0002
struct smb2_sess_setup_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 9 */
	__le16 SessionFlags;
	__le16 SecurityBufferOffset;
	__le16 SecurityBufferLength;
	__u8   Buffer[1];	/* variable length GSS security buffer */
} __packed;

struct smb2_logoff_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 4 */
	__le16 Reserved;
} __packed;

struct smb2_logoff_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 4 */
	__le16 Reserved;
} __packed;

struct smb2_tree_connect_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 9 */
	__le16 Reserved;
	__le16 PathOffset;
	__le16 PathLength;
	__u8   Buffer[1];	/* variable length */
} __packed;

struct smb2_tree_connect_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 16 */
	__u8   ShareType;  /* see below */
	__u8   Reserved;
	__le32 ShareFlags; /* see below */
	__le32 Capabilities; /* see below */
	__le32 MaximalAccess;
} __packed;

/* Possible ShareType values */
#define SMB2_SHARE_TYPE_DISK	0x01
#define SMB2_SHARE_TYPE_PIPE	0x02
#define	SMB2_SHARE_TYPE_PRINT	0x03

/*
 * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 * must be set (any of the remaining, SHI1005, flags may be set individually
 * or in combination.
 */
#define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
#define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
#define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
#define SMB2_SHAREFLAG_NO_CACHING			0x00000030
#define SHI1005_FLAGS_DFS				0x00000001
#define SHI1005_FLAGS_DFS_ROOT				0x00000002
#define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS		0x00000100
#define SHI1005_FLAGS_FORCE_SHARED_DELETE		0x00000200
#define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING		0x00000400
#define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
#define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK		0x00001000
#define SHI1005_FLAGS_ENABLE_HASH_V1			0x00002000
#define SHI1005_FLAGS_ENABLE_HASH_V2			0x00004000
#define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
#define SHI1005_FLAGS_ALL				0x0000FF33

/* Possible share capabilities */
#define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
#define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
#define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
#define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
#define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */

struct smb2_tree_disconnect_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 4 */
	__le16 Reserved;
} __packed;

struct smb2_tree_disconnect_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 4 */
	__le16 Reserved;
} __packed;

/* File Attrubutes */
#define FILE_ATTRIBUTE_READONLY			0x00000001
#define FILE_ATTRIBUTE_HIDDEN			0x00000002
#define FILE_ATTRIBUTE_SYSTEM			0x00000004
#define FILE_ATTRIBUTE_DIRECTORY		0x00000010
#define FILE_ATTRIBUTE_ARCHIVE			0x00000020
#define FILE_ATTRIBUTE_NORMAL			0x00000080
#define FILE_ATTRIBUTE_TEMPORARY		0x00000100
#define FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
#define FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
#define FILE_ATTRIBUTE_COMPRESSED		0x00000800
#define FILE_ATTRIBUTE_OFFLINE			0x00001000
#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
#define FILE_ATTRIBUTE_ENCRYPTED		0x00004000

/* Oplock levels */
#define SMB2_OPLOCK_LEVEL_NONE		0x00
#define SMB2_OPLOCK_LEVEL_II		0x01
#define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
#define SMB2_OPLOCK_LEVEL_BATCH		0x09
#define SMB2_OPLOCK_LEVEL_LEASE		0xFF
/* Non-spec internal type */
#define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99

/* Desired Access Flags */
#define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
#define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
#define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
#define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
#define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
#define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
#define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
#define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
#define FILE_DELETE_LE			cpu_to_le32(0x00010000)
#define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
#define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
#define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
#define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
#define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
#define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
#define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
#define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
#define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
#define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)

/* ShareAccess Flags */
#define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
#define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
#define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
#define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)

/* CreateDisposition Flags */
#define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
#define FILE_OPEN_LE			cpu_to_le32(0x00000001)
#define FILE_CREATE_LE			cpu_to_le32(0x00000002)
#define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
#define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
#define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)

/* CreateOptions Flags */
#define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
/* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
#define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
#define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
#define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
#define FILE_SYNCHRONOUS_IO_ALERT_LE	cpu_to_le32(0x00000010)
#define FILE_SYNCHRONOUS_IO_NON_ALERT_LE	cpu_to_le32(0x00000020)
#define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
#define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
#define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
#define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
#define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000)
#define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
#define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
#define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
#define FILE_RESERVE_OPFILTER_LE	cpu_to_le32(0x00100000)
#define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
#define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
#define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)

#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
			| FILE_READ_ATTRIBUTES_LE)
#define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
#define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)

/* Impersonation Levels */
#define IL_ANONYMOUS		cpu_to_le32(0x00000000)
#define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
#define IL_IMPERSONATION	cpu_to_le32(0x00000002)
#define IL_DELEGATE		cpu_to_le32(0x00000003)

/* Create Context Values */
#define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
#define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
#define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
#define SMB2_CREATE_ALLOCATION_SIZE		"AlSi"
#define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
#define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
#define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
#define SMB2_CREATE_REQUEST_LEASE		"RqLs"

struct smb2_create_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 57 */
	__u8   SecurityFlags;
	__u8   RequestedOplockLevel;
	__le32 ImpersonationLevel;
	__le64 SmbCreateFlags;
	__le64 Reserved;
	__le32 DesiredAccess;
	__le32 FileAttributes;
	__le32 ShareAccess;
	__le32 CreateDisposition;
	__le32 CreateOptions;
	__le16 NameOffset;
	__le16 NameLength;
	__le32 CreateContextsOffset;
	__le32 CreateContextsLength;
	__u8   Buffer[0];
} __packed;

struct smb2_create_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 89 */
	__u8   OplockLevel;
	__u8   Reserved;
	__le32 CreateAction;
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le64 AllocationSize;
	__le64 EndofFile;
	__le32 FileAttributes;
	__le32 Reserved2;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__le32 CreateContextsOffset;
	__le32 CreateContextsLength;
	__u8   Buffer[1];
} __packed;

struct create_context {
	__le32 Next;
	__le16 NameOffset;
	__le16 NameLength;
	__le16 Reserved;
	__le16 DataOffset;
	__le32 DataLength;
	__u8 Buffer[0];
} __packed;

#define SMB2_LEASE_NONE			__constant_cpu_to_le32(0x00)
#define SMB2_LEASE_READ_CACHING		__constant_cpu_to_le32(0x01)
#define SMB2_LEASE_HANDLE_CACHING	__constant_cpu_to_le32(0x02)
#define SMB2_LEASE_WRITE_CACHING	__constant_cpu_to_le32(0x04)

#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02)

#define SMB2_LEASE_KEY_SIZE 16

struct lease_context {
	__le64 LeaseKeyLow;
	__le64 LeaseKeyHigh;
	__le32 LeaseState;
	__le32 LeaseFlags;
	__le64 LeaseDuration;
} __packed;

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

struct create_durable {
	struct create_context ccontext;
	__u8   Name[8];
	union {
		__u8  Reserved[16];
		struct {
			__u64 PersistentFileId;
			__u64 VolatileFileId;
		} Fid;
	} Data;
} __packed;

/* this goes in the ioctl buffer when doing a copychunk request */
struct copychunk_ioctl {
	char SourceKey[24];
	__le32 ChunkCount; /* we are only sending 1 */
	__le32 Reserved;
	/* array will only be one chunk long for us */
	__le64 SourceOffset;
	__le64 TargetOffset;
	__le32 Length; /* how many bytes to copy */
	__u32 Reserved2;
} __packed;

/* Response and Request are the same format */
struct validate_negotiate_info {
	__le32 Capabilities;
	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
	__le16 SecurityMode;
	__le16 DialectCount;
	__le16 Dialect[1];
} __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;

#define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */

struct smb2_ioctl_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 57 */
	__u16 Reserved;
	__le32 CtlCode;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__le32 InputOffset;
	__le32 InputCount;
	__le32 MaxInputResponse;
	__le32 OutputOffset;
	__le32 OutputCount;
	__le32 MaxOutputResponse;
	__le32 Flags;
	__u32  Reserved2;
	char   Buffer[0];
} __packed;

struct smb2_ioctl_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 57 */
	__u16 Reserved;
	__le32 CtlCode;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__le32 InputOffset;
	__le32 InputCount;
	__le32 OutputOffset;
	__le32 OutputCount;
	__le32 Flags;
	__u32  Reserved2;
	/* char * buffer[] */
} __packed;

/* Currently defined values for close flags */
#define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
struct smb2_close_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 24 */
	__le16 Flags;
	__le32 Reserved;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
} __packed;

struct smb2_close_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* 60 */
	__le16 Flags;
	__le32 Reserved;
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
	__le64 EndOfFile;
	__le32 Attributes;
} __packed;

struct smb2_flush_req {
	struct smb2_hdr hdr;
	__le16 StructureSize;	/* Must be 24 */
	__le16 Reserved1;
	__le32 Reserved2;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
} __packed;

struct smb2_flush_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize;
	__le16 Reserved;
} __packed;

/* For read request Flags field below, following flag is defined for SMB3.02 */
#define SMB2_READFLAG_READ_UNBUFFERED	0x01

/* Channel field for read and write: exactly one of following flags can be set*/
#define SMB2_CHANNEL_NONE		0x00000000
#define SMB2_CHANNEL_RDMA_V1		0x00000001 /* SMB3 or later */
#define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000001 /* SMB3.02 or later */

struct smb2_read_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 49 */
	__u8   Padding; /* offset from start of SMB2 header to place read */
	__u8   Flags; /* MBZ unless SMB3.02 or later */
	__le32 Length;
	__le64 Offset;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__le32 MinimumCount;
	__le32 Channel; /* MBZ except for SMB3 or later */
	__le32 RemainingBytes;
	__le16 ReadChannelInfoOffset; /* Reserved MBZ */
	__le16 ReadChannelInfoLength; /* Reserved MBZ */
	__u8   Buffer[1];
} __packed;

struct smb2_read_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 17 */
	__u8   DataOffset;
	__u8   Reserved;
	__le32 DataLength;
	__le32 DataRemaining;
	__u32  Reserved2;
	__u8   Buffer[1];
} __packed;

/* For write request Flags field below the following flags are defined: */
#define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
#define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */

struct smb2_write_req {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 49 */
	__le16 DataOffset; /* offset from start of SMB2 header to write data */
	__le32 Length;
	__le64 Offset;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__le32 Channel; /* Reserved MBZ */
	__le32 RemainingBytes;
	__le16 WriteChannelInfoOffset; /* Reserved MBZ */
	__le16 WriteChannelInfoLength; /* Reserved MBZ */
	__le32 Flags;
	__u8   Buffer[1];
} __packed;

struct smb2_write_rsp {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 17 */
	__u8   DataOffset;
	__u8   Reserved;
	__le32 DataLength;
	__le32 DataRemaining;
	__u32  Reserved2;
	__u8   Buffer[1];
} __packed;

#define SMB2_LOCKFLAG_SHARED_LOCK	0x0001
#define SMB2_LOCKFLAG_EXCLUSIVE_LOCK	0x0002
#define SMB2_LOCKFLAG_UNLOCK		0x0004
#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010

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;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	/* 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;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__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

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;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__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;
	__u64  PersistentFileId; /* opaque endianness */
	__u64  VolatileFileId; /* opaque endianness */
	__u8   Buffer[1];
} __packed;

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

struct smb2_oplock_break {
	struct smb2_hdr hdr;
	__le16 StructureSize; /* Must be 24 */
	__u8   OplockLevel;
	__u8   Reserved;
	__le32 Reserved2;
	__u64  PersistentFid;
	__u64  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 Reserved;
	__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 */

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

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

#endif				/* _SMB2PDU_H */