CIFS: Move async write to ops struct
[linux-3.10.git] / fs / cifs / smb2pdu.h
1 /*
2  *   fs/cifs/smb2pdu.h
3  *
4  *   Copyright (c) International Business Machines  Corp., 2009, 2010
5  *                 Etersoft, 2012
6  *   Author(s): Steve French (sfrench@us.ibm.com)
7  *              Pavel Shilovsky (pshilovsky@samba.org) 2012
8  *
9  *   This library is free software; you can redistribute it and/or modify
10  *   it under the terms of the GNU Lesser General Public License as published
11  *   by the Free Software Foundation; either version 2.1 of the License, or
12  *   (at your option) any later version.
13  *
14  *   This library is distributed in the hope that it will be useful,
15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
17  *   the GNU Lesser General Public License for more details.
18  *
19  *   You should have received a copy of the GNU Lesser General Public License
20  *   along with this library; if not, write to the Free Software
21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  */
23
24 #ifndef _SMB2PDU_H
25 #define _SMB2PDU_H
26
27 #include <net/sock.h>
28
29 /*
30  * Note that, due to trying to use names similar to the protocol specifications,
31  * there are many mixed case field names in the structures below.  Although
32  * this does not match typical Linux kernel style, it is necessary to be
33  * be able to match against the protocol specfication.
34  *
35  * SMB2 commands
36  * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
37  * (ie no useful data other than the SMB error code itself) and are marked such.
38  * Knowing this helps avoid response buffer allocations and copy in some cases.
39  */
40
41 /* List of commands in host endian */
42 #define SMB2_NEGOTIATE_HE       0x0000
43 #define SMB2_SESSION_SETUP_HE   0x0001
44 #define SMB2_LOGOFF_HE          0x0002 /* trivial request/resp */
45 #define SMB2_TREE_CONNECT_HE    0x0003
46 #define SMB2_TREE_DISCONNECT_HE 0x0004 /* trivial req/resp */
47 #define SMB2_CREATE_HE          0x0005
48 #define SMB2_CLOSE_HE           0x0006
49 #define SMB2_FLUSH_HE           0x0007 /* trivial resp */
50 #define SMB2_READ_HE            0x0008
51 #define SMB2_WRITE_HE           0x0009
52 #define SMB2_LOCK_HE            0x000A
53 #define SMB2_IOCTL_HE           0x000B
54 #define SMB2_CANCEL_HE          0x000C
55 #define SMB2_ECHO_HE            0x000D
56 #define SMB2_QUERY_DIRECTORY_HE 0x000E
57 #define SMB2_CHANGE_NOTIFY_HE   0x000F
58 #define SMB2_QUERY_INFO_HE      0x0010
59 #define SMB2_SET_INFO_HE        0x0011
60 #define SMB2_OPLOCK_BREAK_HE    0x0012
61
62 /* The same list in little endian */
63 #define SMB2_NEGOTIATE          cpu_to_le16(SMB2_NEGOTIATE_HE)
64 #define SMB2_SESSION_SETUP      cpu_to_le16(SMB2_SESSION_SETUP_HE)
65 #define SMB2_LOGOFF             cpu_to_le16(SMB2_LOGOFF_HE)
66 #define SMB2_TREE_CONNECT       cpu_to_le16(SMB2_TREE_CONNECT_HE)
67 #define SMB2_TREE_DISCONNECT    cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
68 #define SMB2_CREATE             cpu_to_le16(SMB2_CREATE_HE)
69 #define SMB2_CLOSE              cpu_to_le16(SMB2_CLOSE_HE)
70 #define SMB2_FLUSH              cpu_to_le16(SMB2_FLUSH_HE)
71 #define SMB2_READ               cpu_to_le16(SMB2_READ_HE)
72 #define SMB2_WRITE              cpu_to_le16(SMB2_WRITE_HE)
73 #define SMB2_LOCK               cpu_to_le16(SMB2_LOCK_HE)
74 #define SMB2_IOCTL              cpu_to_le16(SMB2_IOCTL_HE)
75 #define SMB2_CANCEL             cpu_to_le16(SMB2_CANCEL_HE)
76 #define SMB2_ECHO               cpu_to_le16(SMB2_ECHO_HE)
77 #define SMB2_QUERY_DIRECTORY    cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
78 #define SMB2_CHANGE_NOTIFY      cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
79 #define SMB2_QUERY_INFO         cpu_to_le16(SMB2_QUERY_INFO_HE)
80 #define SMB2_SET_INFO           cpu_to_le16(SMB2_SET_INFO_HE)
81 #define SMB2_OPLOCK_BREAK       cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
82
83 #define NUMBER_OF_SMB2_COMMANDS 0x0013
84
85 /* BB FIXME - analyze following length BB */
86 #define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
87
88 #define SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe)
89
90 /*
91  * SMB2 Header Definition
92  *
93  * "MBZ" :  Must be Zero
94  * "BB"  :  BugBug, Something to check/review/analyze later
95  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
96  *
97  */
98
99 #define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64)
100
101 struct smb2_hdr {
102         __be32 smb2_buf_length; /* big endian on wire */
103                                 /* length is only two or three bytes - with
104                                  one or two byte type preceding it that MBZ */
105         __u8   ProtocolId[4];   /* 0xFE 'S' 'M' 'B' */
106         __le16 StructureSize;   /* 64 */
107         __le16 CreditCharge;    /* MBZ */
108         __le32 Status;          /* Error from server */
109         __le16 Command;
110         __le16 CreditRequest;  /* CreditResponse */
111         __le32 Flags;
112         __le32 NextCommand;
113         __u64  MessageId;       /* opaque - so can stay little endian */
114         __le32 ProcessId;
115         __u32  TreeId;          /* opaque - so do not make little endian */
116         __u64  SessionId;       /* opaque - so do not make little endian */
117         __u8   Signature[16];
118 } __packed;
119
120 struct smb2_pdu {
121         struct smb2_hdr hdr;
122         __le16 StructureSize2; /* size of wct area (varies, request specific) */
123 } __packed;
124
125 /*
126  *      SMB2 flag definitions
127  */
128 #define SMB2_FLAGS_SERVER_TO_REDIR      __constant_cpu_to_le32(0x00000001)
129 #define SMB2_FLAGS_ASYNC_COMMAND        __constant_cpu_to_le32(0x00000002)
130 #define SMB2_FLAGS_RELATED_OPERATIONS   __constant_cpu_to_le32(0x00000004)
131 #define SMB2_FLAGS_SIGNED               __constant_cpu_to_le32(0x00000008)
132 #define SMB2_FLAGS_DFS_OPERATIONS       __constant_cpu_to_le32(0x10000000)
133
134 /*
135  *      Definitions for SMB2 Protocol Data Units (network frames)
136  *
137  *  See MS-SMB2.PDF specification for protocol details.
138  *  The Naming convention is the lower case version of the SMB2
139  *  command code name for the struct. Note that structures must be packed.
140  *
141  */
142
143 #define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9)
144
145 struct smb2_err_rsp {
146         struct smb2_hdr hdr;
147         __le16 StructureSize;
148         __le16 Reserved; /* MBZ */
149         __le32 ByteCount;  /* even if zero, at least one byte follows */
150         __u8   ErrorData[1];  /* variable length */
151 } __packed;
152
153 struct smb2_negotiate_req {
154         struct smb2_hdr hdr;
155         __le16 StructureSize; /* Must be 36 */
156         __le16 DialectCount;
157         __le16 SecurityMode;
158         __le16 Reserved;        /* MBZ */
159         __le32 Capabilities;
160         __u8   ClientGUID[16];  /* MBZ */
161         __le64 ClientStartTime; /* MBZ */
162         __le16 Dialects[2]; /* variable length */
163 } __packed;
164
165 /* SecurityMode flags */
166 #define SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
167 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
168 /* Capabilities flags */
169 #define SMB2_GLOBAL_CAP_DFS             0x00000001
170 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
171 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
172 /* Internal types */
173 #define SMB2_NT_FIND                    0x00100000
174 #define SMB2_LARGE_FILES                0x00200000
175
176 struct smb2_negotiate_rsp {
177         struct smb2_hdr hdr;
178         __le16 StructureSize;   /* Must be 65 */
179         __le16 SecurityMode;
180         __le16 DialectRevision;
181         __le16 Reserved;        /* MBZ */
182         __u8   ServerGUID[16];
183         __le32 Capabilities;
184         __le32 MaxTransactSize;
185         __le32 MaxReadSize;
186         __le32 MaxWriteSize;
187         __le64 SystemTime;      /* MBZ */
188         __le64 ServerStartTime;
189         __le16 SecurityBufferOffset;
190         __le16 SecurityBufferLength;
191         __le32 Reserved2;       /* may be any value, ignore */
192         __u8   Buffer[1];       /* variable length GSS security buffer */
193 } __packed;
194
195 struct smb2_sess_setup_req {
196         struct smb2_hdr hdr;
197         __le16 StructureSize; /* Must be 25 */
198         __u8   VcNumber;
199         __u8   SecurityMode;
200         __le32 Capabilities;
201         __le32 Channel;
202         __le16 SecurityBufferOffset;
203         __le16 SecurityBufferLength;
204         __le64 PreviousSessionId;
205         __u8   Buffer[1];       /* variable length GSS security buffer */
206 } __packed;
207
208 /* Currently defined SessionFlags */
209 #define SMB2_SESSION_FLAG_IS_GUEST      0x0001
210 #define SMB2_SESSION_FLAG_IS_NULL       0x0002
211 struct smb2_sess_setup_rsp {
212         struct smb2_hdr hdr;
213         __le16 StructureSize; /* Must be 9 */
214         __le16 SessionFlags;
215         __le16 SecurityBufferOffset;
216         __le16 SecurityBufferLength;
217         __u8   Buffer[1];       /* variable length GSS security buffer */
218 } __packed;
219
220 struct smb2_logoff_req {
221         struct smb2_hdr hdr;
222         __le16 StructureSize;   /* Must be 4 */
223         __le16 Reserved;
224 } __packed;
225
226 struct smb2_logoff_rsp {
227         struct smb2_hdr hdr;
228         __le16 StructureSize;   /* Must be 4 */
229         __le16 Reserved;
230 } __packed;
231
232 struct smb2_tree_connect_req {
233         struct smb2_hdr hdr;
234         __le16 StructureSize;   /* Must be 9 */
235         __le16 Reserved;
236         __le16 PathOffset;
237         __le16 PathLength;
238         __u8   Buffer[1];       /* variable length */
239 } __packed;
240
241 struct smb2_tree_connect_rsp {
242         struct smb2_hdr hdr;
243         __le16 StructureSize;   /* Must be 16 */
244         __u8   ShareType;  /* see below */
245         __u8   Reserved;
246         __le32 ShareFlags; /* see below */
247         __le32 Capabilities; /* see below */
248         __le32 MaximalAccess;
249 } __packed;
250
251 /* Possible ShareType values */
252 #define SMB2_SHARE_TYPE_DISK    0x01
253 #define SMB2_SHARE_TYPE_PIPE    0x02
254 #define SMB2_SHARE_TYPE_PRINT   0x03
255
256 /*
257  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
258  * must be set (any of the remaining, SHI1005, flags may be set individually
259  * or in combination.
260  */
261 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
262 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
263 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
264 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
265 #define SHI1005_FLAGS_DFS                               0x00000001
266 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
267 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS          0x00000100
268 #define SHI1005_FLAGS_FORCE_SHARED_DELETE               0x00000200
269 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING           0x00000400
270 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM       0x00000800
271 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK              0x00001000
272 #define SHI1005_FLAGS_ENABLE_HASH                       0x00002000
273
274 /* Possible share capabilities */
275 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008)
276
277 struct smb2_tree_disconnect_req {
278         struct smb2_hdr hdr;
279         __le16 StructureSize;   /* Must be 4 */
280         __le16 Reserved;
281 } __packed;
282
283 struct smb2_tree_disconnect_rsp {
284         struct smb2_hdr hdr;
285         __le16 StructureSize;   /* Must be 4 */
286         __le16 Reserved;
287 } __packed;
288
289 /* File Attrubutes */
290 #define FILE_ATTRIBUTE_READONLY                 0x00000001
291 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
292 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
293 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
294 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
295 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
296 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
297 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
298 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
299 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
300 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
301 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
302 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
303
304 /* Oplock levels */
305 #define SMB2_OPLOCK_LEVEL_NONE          0x00
306 #define SMB2_OPLOCK_LEVEL_II            0x01
307 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
308 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
309 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
310
311 /* Desired Access Flags */
312 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
313 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
314 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
315 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
316 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
317 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
318 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
319 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
320 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
321 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
322 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
323 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
324 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
325 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
326 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
327 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
328 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
329 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
330 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
331
332 /* ShareAccess Flags */
333 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
334 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
335 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
336 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
337
338 /* CreateDisposition Flags */
339 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
340 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
341 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
342 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
343 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
344 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
345
346 /* CreateOptions Flags */
347 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
348 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
349 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
350 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
351 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
352 #define FILE_SYNCHRONOUS_IO_ALERT_LE    cpu_to_le32(0x00000010)
353 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE        cpu_to_le32(0x00000020)
354 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
355 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
356 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
357 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
358 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000)
359 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
360 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
361 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
362 #define FILE_RESERVE_OPFILTER_LE        cpu_to_le32(0x00100000)
363 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
364 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
365 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
366
367 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
368                         | FILE_READ_ATTRIBUTES_LE)
369 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
370                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
371 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
372
373 /* Impersonation Levels */
374 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
375 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
376 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
377 #define IL_DELEGATE             cpu_to_le32(0x00000003)
378
379 /* Create Context Values */
380 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
381 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
382 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
383 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
384 #define SMB2_CREATE_ALLOCATION_SIZE             "AlSi"
385 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
386 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
387 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
388 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
389
390 struct smb2_create_req {
391         struct smb2_hdr hdr;
392         __le16 StructureSize;   /* Must be 57 */
393         __u8   SecurityFlags;
394         __u8   RequestedOplockLevel;
395         __le32 ImpersonationLevel;
396         __le64 SmbCreateFlags;
397         __le64 Reserved;
398         __le32 DesiredAccess;
399         __le32 FileAttributes;
400         __le32 ShareAccess;
401         __le32 CreateDisposition;
402         __le32 CreateOptions;
403         __le16 NameOffset;
404         __le16 NameLength;
405         __le32 CreateContextsOffset;
406         __le32 CreateContextsLength;
407         __u8   Buffer[1];
408 } __packed;
409
410 struct smb2_create_rsp {
411         struct smb2_hdr hdr;
412         __le16 StructureSize;   /* Must be 89 */
413         __u8   OplockLevel;
414         __u8   Reserved;
415         __le32 CreateAction;
416         __le64 CreationTime;
417         __le64 LastAccessTime;
418         __le64 LastWriteTime;
419         __le64 ChangeTime;
420         __le64 AllocationSize;
421         __le64 EndofFile;
422         __le32 FileAttributes;
423         __le32 Reserved2;
424         __u64  PersistentFileId; /* opaque endianness */
425         __u64  VolatileFileId; /* opaque endianness */
426         __le32 CreateContextsOffset;
427         __le32 CreateContextsLength;
428         __u8   Buffer[1];
429 } __packed;
430
431 /* Currently defined values for close flags */
432 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
433 struct smb2_close_req {
434         struct smb2_hdr hdr;
435         __le16 StructureSize;   /* Must be 24 */
436         __le16 Flags;
437         __le32 Reserved;
438         __u64  PersistentFileId; /* opaque endianness */
439         __u64  VolatileFileId; /* opaque endianness */
440 } __packed;
441
442 struct smb2_close_rsp {
443         struct smb2_hdr hdr;
444         __le16 StructureSize; /* 60 */
445         __le16 Flags;
446         __le32 Reserved;
447         __le64 CreationTime;
448         __le64 LastAccessTime;
449         __le64 LastWriteTime;
450         __le64 ChangeTime;
451         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
452         __le64 EndOfFile;
453         __le32 Attributes;
454 } __packed;
455
456 struct smb2_flush_req {
457         struct smb2_hdr hdr;
458         __le16 StructureSize;   /* Must be 24 */
459         __le16 Reserved1;
460         __le32 Reserved2;
461         __u64  PersistentFileId; /* opaque endianness */
462         __u64  VolatileFileId; /* opaque endianness */
463 } __packed;
464
465 struct smb2_flush_rsp {
466         struct smb2_hdr hdr;
467         __le16 StructureSize;
468         __le16 Reserved;
469 } __packed;
470
471 struct smb2_read_req {
472         struct smb2_hdr hdr;
473         __le16 StructureSize; /* Must be 49 */
474         __u8   Padding; /* offset from start of SMB2 header to place read */
475         __u8   Reserved;
476         __le32 Length;
477         __le64 Offset;
478         __u64  PersistentFileId; /* opaque endianness */
479         __u64  VolatileFileId; /* opaque endianness */
480         __le32 MinimumCount;
481         __le32 Channel; /* Reserved MBZ */
482         __le32 RemainingBytes;
483         __le16 ReadChannelInfoOffset; /* Reserved MBZ */
484         __le16 ReadChannelInfoLength; /* Reserved MBZ */
485         __u8   Buffer[1];
486 } __packed;
487
488 struct smb2_read_rsp {
489         struct smb2_hdr hdr;
490         __le16 StructureSize; /* Must be 17 */
491         __u8   DataOffset;
492         __u8   Reserved;
493         __le32 DataLength;
494         __le32 DataRemaining;
495         __u32  Reserved2;
496         __u8   Buffer[1];
497 } __packed;
498
499 struct smb2_echo_req {
500         struct smb2_hdr hdr;
501         __le16 StructureSize;   /* Must be 4 */
502         __u16  Reserved;
503 } __packed;
504
505 struct smb2_echo_rsp {
506         struct smb2_hdr hdr;
507         __le16 StructureSize;   /* Must be 4 */
508         __u16  Reserved;
509 } __packed;
510
511 /* Possible InfoType values */
512 #define SMB2_O_INFO_FILE        0x01
513 #define SMB2_O_INFO_FILESYSTEM  0x02
514 #define SMB2_O_INFO_SECURITY    0x03
515 #define SMB2_O_INFO_QUOTA       0x04
516
517 struct smb2_query_info_req {
518         struct smb2_hdr hdr;
519         __le16 StructureSize; /* Must be 41 */
520         __u8   InfoType;
521         __u8   FileInfoClass;
522         __le32 OutputBufferLength;
523         __le16 InputBufferOffset;
524         __u16  Reserved;
525         __le32 InputBufferLength;
526         __le32 AdditionalInformation;
527         __le32 Flags;
528         __u64  PersistentFileId; /* opaque endianness */
529         __u64  VolatileFileId; /* opaque endianness */
530         __u8   Buffer[1];
531 } __packed;
532
533 struct smb2_query_info_rsp {
534         struct smb2_hdr hdr;
535         __le16 StructureSize; /* Must be 9 */
536         __le16 OutputBufferOffset;
537         __le32 OutputBufferLength;
538         __u8   Buffer[1];
539 } __packed;
540
541 /*
542  *      PDU infolevel structure definitions
543  *      BB consider moving to a different header
544  */
545
546 /* partial list of QUERY INFO levels */
547 #define FILE_DIRECTORY_INFORMATION      1
548 #define FILE_FULL_DIRECTORY_INFORMATION 2
549 #define FILE_BOTH_DIRECTORY_INFORMATION 3
550 #define FILE_BASIC_INFORMATION          4
551 #define FILE_STANDARD_INFORMATION       5
552 #define FILE_INTERNAL_INFORMATION       6
553 #define FILE_EA_INFORMATION             7
554 #define FILE_ACCESS_INFORMATION         8
555 #define FILE_NAME_INFORMATION           9
556 #define FILE_RENAME_INFORMATION         10
557 #define FILE_LINK_INFORMATION           11
558 #define FILE_NAMES_INFORMATION          12
559 #define FILE_DISPOSITION_INFORMATION    13
560 #define FILE_POSITION_INFORMATION       14
561 #define FILE_FULL_EA_INFORMATION        15
562 #define FILE_MODE_INFORMATION           16
563 #define FILE_ALIGNMENT_INFORMATION      17
564 #define FILE_ALL_INFORMATION            18
565 #define FILE_ALLOCATION_INFORMATION     19
566 #define FILE_END_OF_FILE_INFORMATION    20
567 #define FILE_ALTERNATE_NAME_INFORMATION 21
568 #define FILE_STREAM_INFORMATION         22
569 #define FILE_PIPE_INFORMATION           23
570 #define FILE_PIPE_LOCAL_INFORMATION     24
571 #define FILE_PIPE_REMOTE_INFORMATION    25
572 #define FILE_MAILSLOT_QUERY_INFORMATION 26
573 #define FILE_MAILSLOT_SET_INFORMATION   27
574 #define FILE_COMPRESSION_INFORMATION    28
575 #define FILE_OBJECT_ID_INFORMATION      29
576 /* Number 30 not defined in documents */
577 #define FILE_MOVE_CLUSTER_INFORMATION   31
578 #define FILE_QUOTA_INFORMATION          32
579 #define FILE_REPARSE_POINT_INFORMATION  33
580 #define FILE_NETWORK_OPEN_INFORMATION   34
581 #define FILE_ATTRIBUTE_TAG_INFORMATION  35
582 #define FILE_TRACKING_INFORMATION       36
583 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
584 #define FILEID_FULL_DIRECTORY_INFORMATION 38
585 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
586 #define FILE_SHORT_NAME_INFORMATION     40
587 #define FILE_SFIO_RESERVE_INFORMATION   44
588 #define FILE_SFIO_VOLUME_INFORMATION    45
589 #define FILE_HARD_LINK_INFORMATION      46
590 #define FILE_NORMALIZED_NAME_INFORMATION 48
591 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
592 #define FILE_STANDARD_LINK_INFORMATION  54
593
594 struct smb2_file_internal_info {
595         __le64 IndexNumber;
596 } __packed; /* level 6 Query */
597
598 /*
599  * This level 18, although with struct with same name is different from cifs
600  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
601  * CurrentByteOffset.
602  */
603 struct smb2_file_all_info { /* data block encoding of response to level 18 */
604         __le64 CreationTime;    /* Beginning of FILE_BASIC_INFO equivalent */
605         __le64 LastAccessTime;
606         __le64 LastWriteTime;
607         __le64 ChangeTime;
608         __le32 Attributes;
609         __u32  Pad1;            /* End of FILE_BASIC_INFO_INFO equivalent */
610         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
611         __le64 EndOfFile;       /* size ie offset to first free byte in file */
612         __le32 NumberOfLinks;   /* hard links */
613         __u8   DeletePending;
614         __u8   Directory;
615         __u16  Pad2;            /* End of FILE_STANDARD_INFO equivalent */
616         __le64 IndexNumber;
617         __le32 EASize;
618         __le32 AccessFlags;
619         __le64 CurrentByteOffset;
620         __le32 Mode;
621         __le32 AlignmentRequirement;
622         __le32 FileNameLength;
623         char   FileName[1];
624 } __packed; /* level 18 Query */
625
626 #endif                          /* _SMB2PDU_H */