CIFS: Request durable open for SMB2 opens
[profile/ivi/kernel-x86-ivi.git] / fs / cifs / smb2pdu.h
1 /*
2  *   fs/cifs/smb2pdu.h
3  *
4  *   Copyright (c) International Business Machines  Corp., 2009, 2013
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 #define SMB2_CLIENT_GUID_SIZE 16
154
155 extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
156
157 struct smb2_negotiate_req {
158         struct smb2_hdr hdr;
159         __le16 StructureSize; /* Must be 36 */
160         __le16 DialectCount;
161         __le16 SecurityMode;
162         __le16 Reserved;        /* MBZ */
163         __le32 Capabilities;
164         __u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
165         __le64 ClientStartTime; /* MBZ */
166         __le16 Dialects[1]; /* One dialect (vers=) at a time for now */
167 } __packed;
168
169 /* Dialects */
170 #define SMB20_PROT_ID 0x0202
171 #define SMB21_PROT_ID 0x0210
172 #define SMB30_PROT_ID 0x0300
173 #define SMB302_PROT_ID 0x0302
174 #define BAD_PROT_ID   0xFFFF
175
176 /* SecurityMode flags */
177 #define SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
178 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
179 /* Capabilities flags */
180 #define SMB2_GLOBAL_CAP_DFS             0x00000001
181 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
182 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
183 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL   0x00000008 /* New to SMB3 */
184 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
185 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
186 #define SMB2_GLOBAL_CAP_ENCRYPTION      0x00000040 /* New to SMB3 */
187 /* Internal types */
188 #define SMB2_NT_FIND                    0x00100000
189 #define SMB2_LARGE_FILES                0x00200000
190
191 struct smb2_negotiate_rsp {
192         struct smb2_hdr hdr;
193         __le16 StructureSize;   /* Must be 65 */
194         __le16 SecurityMode;
195         __le16 DialectRevision;
196         __le16 Reserved;        /* MBZ */
197         __u8   ServerGUID[16];
198         __le32 Capabilities;
199         __le32 MaxTransactSize;
200         __le32 MaxReadSize;
201         __le32 MaxWriteSize;
202         __le64 SystemTime;      /* MBZ */
203         __le64 ServerStartTime;
204         __le16 SecurityBufferOffset;
205         __le16 SecurityBufferLength;
206         __le32 Reserved2;       /* may be any value, ignore */
207         __u8   Buffer[1];       /* variable length GSS security buffer */
208 } __packed;
209
210 struct smb2_sess_setup_req {
211         struct smb2_hdr hdr;
212         __le16 StructureSize; /* Must be 25 */
213         __u8   VcNumber;
214         __u8   SecurityMode;
215         __le32 Capabilities;
216         __le32 Channel;
217         __le16 SecurityBufferOffset;
218         __le16 SecurityBufferLength;
219         __le64 PreviousSessionId;
220         __u8   Buffer[1];       /* variable length GSS security buffer */
221 } __packed;
222
223 /* Currently defined SessionFlags */
224 #define SMB2_SESSION_FLAG_IS_GUEST      0x0001
225 #define SMB2_SESSION_FLAG_IS_NULL       0x0002
226 struct smb2_sess_setup_rsp {
227         struct smb2_hdr hdr;
228         __le16 StructureSize; /* Must be 9 */
229         __le16 SessionFlags;
230         __le16 SecurityBufferOffset;
231         __le16 SecurityBufferLength;
232         __u8   Buffer[1];       /* variable length GSS security buffer */
233 } __packed;
234
235 struct smb2_logoff_req {
236         struct smb2_hdr hdr;
237         __le16 StructureSize;   /* Must be 4 */
238         __le16 Reserved;
239 } __packed;
240
241 struct smb2_logoff_rsp {
242         struct smb2_hdr hdr;
243         __le16 StructureSize;   /* Must be 4 */
244         __le16 Reserved;
245 } __packed;
246
247 struct smb2_tree_connect_req {
248         struct smb2_hdr hdr;
249         __le16 StructureSize;   /* Must be 9 */
250         __le16 Reserved;
251         __le16 PathOffset;
252         __le16 PathLength;
253         __u8   Buffer[1];       /* variable length */
254 } __packed;
255
256 struct smb2_tree_connect_rsp {
257         struct smb2_hdr hdr;
258         __le16 StructureSize;   /* Must be 16 */
259         __u8   ShareType;  /* see below */
260         __u8   Reserved;
261         __le32 ShareFlags; /* see below */
262         __le32 Capabilities; /* see below */
263         __le32 MaximalAccess;
264 } __packed;
265
266 /* Possible ShareType values */
267 #define SMB2_SHARE_TYPE_DISK    0x01
268 #define SMB2_SHARE_TYPE_PIPE    0x02
269 #define SMB2_SHARE_TYPE_PRINT   0x03
270
271 /*
272  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
273  * must be set (any of the remaining, SHI1005, flags may be set individually
274  * or in combination.
275  */
276 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
277 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
278 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
279 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
280 #define SHI1005_FLAGS_DFS                               0x00000001
281 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
282 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS          0x00000100
283 #define SHI1005_FLAGS_FORCE_SHARED_DELETE               0x00000200
284 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING           0x00000400
285 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM       0x00000800
286 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK              0x00001000
287 #define SHI1005_FLAGS_ENABLE_HASH_V1                    0x00002000
288 #define SHI1005_FLAGS_ENABLE_HASH_V2                    0x00004000
289 #define SHI1005_FLAGS_ENCRYPT_DATA                      0x00008000
290 #define SHI1005_FLAGS_ALL                               0x0000FF33
291
292 /* Possible share capabilities */
293 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008) /* all dialects */
294 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
295 #define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */
296 #define SMB2_SHARE_CAP_CLUSTER  cpu_to_le32(0x00000040) /* 3.0 */
297 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
298
299 struct smb2_tree_disconnect_req {
300         struct smb2_hdr hdr;
301         __le16 StructureSize;   /* Must be 4 */
302         __le16 Reserved;
303 } __packed;
304
305 struct smb2_tree_disconnect_rsp {
306         struct smb2_hdr hdr;
307         __le16 StructureSize;   /* Must be 4 */
308         __le16 Reserved;
309 } __packed;
310
311 /* File Attrubutes */
312 #define FILE_ATTRIBUTE_READONLY                 0x00000001
313 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
314 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
315 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
316 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
317 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
318 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
319 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
320 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
321 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
322 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
323 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
324 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
325
326 /* Oplock levels */
327 #define SMB2_OPLOCK_LEVEL_NONE          0x00
328 #define SMB2_OPLOCK_LEVEL_II            0x01
329 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
330 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
331 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
332 /* Non-spec internal type */
333 #define SMB2_OPLOCK_LEVEL_NOCHANGE      0x99
334
335 /* Desired Access Flags */
336 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
337 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
338 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
339 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
340 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
341 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
342 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
343 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
344 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
345 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
346 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
347 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
348 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
349 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
350 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
351 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
352 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
353 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
354 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
355
356 /* ShareAccess Flags */
357 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
358 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
359 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
360 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
361
362 /* CreateDisposition Flags */
363 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
364 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
365 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
366 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
367 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
368 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
369
370 /* CreateOptions Flags */
371 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
372 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
373 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
374 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
375 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
376 #define FILE_SYNCHRONOUS_IO_ALERT_LE    cpu_to_le32(0x00000010)
377 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE        cpu_to_le32(0x00000020)
378 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
379 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
380 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
381 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
382 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000)
383 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
384 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
385 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
386 #define FILE_RESERVE_OPFILTER_LE        cpu_to_le32(0x00100000)
387 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
388 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
389 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
390
391 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
392                         | FILE_READ_ATTRIBUTES_LE)
393 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
394                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
395 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
396
397 /* Impersonation Levels */
398 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
399 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
400 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
401 #define IL_DELEGATE             cpu_to_le32(0x00000003)
402
403 /* Create Context Values */
404 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
405 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
406 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
407 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
408 #define SMB2_CREATE_ALLOCATION_SIZE             "AlSi"
409 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
410 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
411 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
412 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
413
414 struct smb2_create_req {
415         struct smb2_hdr hdr;
416         __le16 StructureSize;   /* Must be 57 */
417         __u8   SecurityFlags;
418         __u8   RequestedOplockLevel;
419         __le32 ImpersonationLevel;
420         __le64 SmbCreateFlags;
421         __le64 Reserved;
422         __le32 DesiredAccess;
423         __le32 FileAttributes;
424         __le32 ShareAccess;
425         __le32 CreateDisposition;
426         __le32 CreateOptions;
427         __le16 NameOffset;
428         __le16 NameLength;
429         __le32 CreateContextsOffset;
430         __le32 CreateContextsLength;
431         __u8   Buffer[0];
432 } __packed;
433
434 struct smb2_create_rsp {
435         struct smb2_hdr hdr;
436         __le16 StructureSize;   /* Must be 89 */
437         __u8   OplockLevel;
438         __u8   Reserved;
439         __le32 CreateAction;
440         __le64 CreationTime;
441         __le64 LastAccessTime;
442         __le64 LastWriteTime;
443         __le64 ChangeTime;
444         __le64 AllocationSize;
445         __le64 EndofFile;
446         __le32 FileAttributes;
447         __le32 Reserved2;
448         __u64  PersistentFileId; /* opaque endianness */
449         __u64  VolatileFileId; /* opaque endianness */
450         __le32 CreateContextsOffset;
451         __le32 CreateContextsLength;
452         __u8   Buffer[1];
453 } __packed;
454
455 struct create_context {
456         __le32 Next;
457         __le16 NameOffset;
458         __le16 NameLength;
459         __le16 Reserved;
460         __le16 DataOffset;
461         __le32 DataLength;
462         __u8 Buffer[0];
463 } __packed;
464
465 #define SMB2_LEASE_NONE                 __constant_cpu_to_le32(0x00)
466 #define SMB2_LEASE_READ_CACHING         __constant_cpu_to_le32(0x01)
467 #define SMB2_LEASE_HANDLE_CACHING       __constant_cpu_to_le32(0x02)
468 #define SMB2_LEASE_WRITE_CACHING        __constant_cpu_to_le32(0x04)
469
470 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02)
471
472 #define SMB2_LEASE_KEY_SIZE 16
473
474 struct lease_context {
475         __le64 LeaseKeyLow;
476         __le64 LeaseKeyHigh;
477         __le32 LeaseState;
478         __le32 LeaseFlags;
479         __le64 LeaseDuration;
480 } __packed;
481
482 struct create_lease {
483         struct create_context ccontext;
484         __u8   Name[8];
485         struct lease_context lcontext;
486 } __packed;
487
488 struct create_durable {
489         struct create_context ccontext;
490         __u8   Name[8];
491         __u8   Reserved[16];
492 } __packed;
493
494 /* this goes in the ioctl buffer when doing a copychunk request */
495 struct copychunk_ioctl {
496         char SourceKey[24];
497         __le32 ChunkCount; /* we are only sending 1 */
498         __le32 Reserved;
499         /* array will only be one chunk long for us */
500         __le64 SourceOffset;
501         __le64 TargetOffset;
502         __le32 Length; /* how many bytes to copy */
503         __u32 Reserved2;
504 } __packed;
505
506 /* Response and Request are the same format */
507 struct validate_negotiate_info {
508         __le32 Capabilities;
509         __u8   Guid[SMB2_CLIENT_GUID_SIZE];
510         __le16 SecurityMode;
511         __le16 DialectCount;
512         __le16 Dialect[1];
513 } __packed;
514
515 #define RSS_CAPABLE     0x00000001
516 #define RDMA_CAPABLE    0x00000002
517
518 struct network_interface_info_ioctl_rsp {
519         __le32 Next; /* next interface. zero if this is last one */
520         __le32 IfIndex;
521         __le32 Capability; /* RSS or RDMA Capable */
522         __le32 Reserved;
523         __le64 LinkSpeed;
524         char    SockAddr_Storage[128];
525 } __packed;
526
527 #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
528
529 struct smb2_ioctl_req {
530         struct smb2_hdr hdr;
531         __le16 StructureSize;   /* Must be 57 */
532         __u16 Reserved;
533         __le32 CtlCode;
534         __u64  PersistentFileId; /* opaque endianness */
535         __u64  VolatileFileId; /* opaque endianness */
536         __le32 InputOffset;
537         __le32 InputCount;
538         __le32 MaxInputResponse;
539         __le32 OutputOffset;
540         __le32 OutputCount;
541         __le32 MaxOutputResponse;
542         __le32 Flags;
543         __u32  Reserved2;
544         char   Buffer[0];
545 } __packed;
546
547 struct smb2_ioctl_rsp {
548         struct smb2_hdr hdr;
549         __le16 StructureSize;   /* Must be 57 */
550         __u16 Reserved;
551         __le32 CtlCode;
552         __u64  PersistentFileId; /* opaque endianness */
553         __u64  VolatileFileId; /* opaque endianness */
554         __le32 InputOffset;
555         __le32 InputCount;
556         __le32 OutputOffset;
557         __le32 OutputCount;
558         __le32 Flags;
559         __u32  Reserved2;
560         /* char * buffer[] */
561 } __packed;
562
563 /* Currently defined values for close flags */
564 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
565 struct smb2_close_req {
566         struct smb2_hdr hdr;
567         __le16 StructureSize;   /* Must be 24 */
568         __le16 Flags;
569         __le32 Reserved;
570         __u64  PersistentFileId; /* opaque endianness */
571         __u64  VolatileFileId; /* opaque endianness */
572 } __packed;
573
574 struct smb2_close_rsp {
575         struct smb2_hdr hdr;
576         __le16 StructureSize; /* 60 */
577         __le16 Flags;
578         __le32 Reserved;
579         __le64 CreationTime;
580         __le64 LastAccessTime;
581         __le64 LastWriteTime;
582         __le64 ChangeTime;
583         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
584         __le64 EndOfFile;
585         __le32 Attributes;
586 } __packed;
587
588 struct smb2_flush_req {
589         struct smb2_hdr hdr;
590         __le16 StructureSize;   /* Must be 24 */
591         __le16 Reserved1;
592         __le32 Reserved2;
593         __u64  PersistentFileId; /* opaque endianness */
594         __u64  VolatileFileId; /* opaque endianness */
595 } __packed;
596
597 struct smb2_flush_rsp {
598         struct smb2_hdr hdr;
599         __le16 StructureSize;
600         __le16 Reserved;
601 } __packed;
602
603 /* For read request Flags field below, following flag is defined for SMB3.02 */
604 #define SMB2_READFLAG_READ_UNBUFFERED   0x01
605
606 /* Channel field for read and write: exactly one of following flags can be set*/
607 #define SMB2_CHANNEL_NONE               0x00000000
608 #define SMB2_CHANNEL_RDMA_V1            0x00000001 /* SMB3 or later */
609 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000001 /* SMB3.02 or later */
610
611 struct smb2_read_req {
612         struct smb2_hdr hdr;
613         __le16 StructureSize; /* Must be 49 */
614         __u8   Padding; /* offset from start of SMB2 header to place read */
615         __u8   Flags; /* MBZ unless SMB3.02 or later */
616         __le32 Length;
617         __le64 Offset;
618         __u64  PersistentFileId; /* opaque endianness */
619         __u64  VolatileFileId; /* opaque endianness */
620         __le32 MinimumCount;
621         __le32 Channel; /* MBZ except for SMB3 or later */
622         __le32 RemainingBytes;
623         __le16 ReadChannelInfoOffset; /* Reserved MBZ */
624         __le16 ReadChannelInfoLength; /* Reserved MBZ */
625         __u8   Buffer[1];
626 } __packed;
627
628 struct smb2_read_rsp {
629         struct smb2_hdr hdr;
630         __le16 StructureSize; /* Must be 17 */
631         __u8   DataOffset;
632         __u8   Reserved;
633         __le32 DataLength;
634         __le32 DataRemaining;
635         __u32  Reserved2;
636         __u8   Buffer[1];
637 } __packed;
638
639 /* For write request Flags field below the following flags are defined: */
640 #define SMB2_WRITEFLAG_WRITE_THROUGH    0x00000001      /* SMB2.1 or later */
641 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002      /* SMB3.02 or later */
642
643 struct smb2_write_req {
644         struct smb2_hdr hdr;
645         __le16 StructureSize; /* Must be 49 */
646         __le16 DataOffset; /* offset from start of SMB2 header to write data */
647         __le32 Length;
648         __le64 Offset;
649         __u64  PersistentFileId; /* opaque endianness */
650         __u64  VolatileFileId; /* opaque endianness */
651         __le32 Channel; /* Reserved MBZ */
652         __le32 RemainingBytes;
653         __le16 WriteChannelInfoOffset; /* Reserved MBZ */
654         __le16 WriteChannelInfoLength; /* Reserved MBZ */
655         __le32 Flags;
656         __u8   Buffer[1];
657 } __packed;
658
659 struct smb2_write_rsp {
660         struct smb2_hdr hdr;
661         __le16 StructureSize; /* Must be 17 */
662         __u8   DataOffset;
663         __u8   Reserved;
664         __le32 DataLength;
665         __le32 DataRemaining;
666         __u32  Reserved2;
667         __u8   Buffer[1];
668 } __packed;
669
670 #define SMB2_LOCKFLAG_SHARED_LOCK       0x0001
671 #define SMB2_LOCKFLAG_EXCLUSIVE_LOCK    0x0002
672 #define SMB2_LOCKFLAG_UNLOCK            0x0004
673 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY  0x0010
674
675 struct smb2_lock_element {
676         __le64 Offset;
677         __le64 Length;
678         __le32 Flags;
679         __le32 Reserved;
680 } __packed;
681
682 struct smb2_lock_req {
683         struct smb2_hdr hdr;
684         __le16 StructureSize; /* Must be 48 */
685         __le16 LockCount;
686         __le32 Reserved;
687         __u64  PersistentFileId; /* opaque endianness */
688         __u64  VolatileFileId; /* opaque endianness */
689         /* Followed by at least one */
690         struct smb2_lock_element locks[1];
691 } __packed;
692
693 struct smb2_lock_rsp {
694         struct smb2_hdr hdr;
695         __le16 StructureSize; /* Must be 4 */
696         __le16 Reserved;
697 } __packed;
698
699 struct smb2_echo_req {
700         struct smb2_hdr hdr;
701         __le16 StructureSize;   /* Must be 4 */
702         __u16  Reserved;
703 } __packed;
704
705 struct smb2_echo_rsp {
706         struct smb2_hdr hdr;
707         __le16 StructureSize;   /* Must be 4 */
708         __u16  Reserved;
709 } __packed;
710
711 /* search (query_directory) Flags field */
712 #define SMB2_RESTART_SCANS              0x01
713 #define SMB2_RETURN_SINGLE_ENTRY        0x02
714 #define SMB2_INDEX_SPECIFIED            0x04
715 #define SMB2_REOPEN                     0x10
716
717 struct smb2_query_directory_req {
718         struct smb2_hdr hdr;
719         __le16 StructureSize; /* Must be 33 */
720         __u8   FileInformationClass;
721         __u8   Flags;
722         __le32 FileIndex;
723         __u64  PersistentFileId; /* opaque endianness */
724         __u64  VolatileFileId; /* opaque endianness */
725         __le16 FileNameOffset;
726         __le16 FileNameLength;
727         __le32 OutputBufferLength;
728         __u8   Buffer[1];
729 } __packed;
730
731 struct smb2_query_directory_rsp {
732         struct smb2_hdr hdr;
733         __le16 StructureSize; /* Must be 9 */
734         __le16 OutputBufferOffset;
735         __le32 OutputBufferLength;
736         __u8   Buffer[1];
737 } __packed;
738
739 /* Possible InfoType values */
740 #define SMB2_O_INFO_FILE        0x01
741 #define SMB2_O_INFO_FILESYSTEM  0x02
742 #define SMB2_O_INFO_SECURITY    0x03
743 #define SMB2_O_INFO_QUOTA       0x04
744
745 struct smb2_query_info_req {
746         struct smb2_hdr hdr;
747         __le16 StructureSize; /* Must be 41 */
748         __u8   InfoType;
749         __u8   FileInfoClass;
750         __le32 OutputBufferLength;
751         __le16 InputBufferOffset;
752         __u16  Reserved;
753         __le32 InputBufferLength;
754         __le32 AdditionalInformation;
755         __le32 Flags;
756         __u64  PersistentFileId; /* opaque endianness */
757         __u64  VolatileFileId; /* opaque endianness */
758         __u8   Buffer[1];
759 } __packed;
760
761 struct smb2_query_info_rsp {
762         struct smb2_hdr hdr;
763         __le16 StructureSize; /* Must be 9 */
764         __le16 OutputBufferOffset;
765         __le32 OutputBufferLength;
766         __u8   Buffer[1];
767 } __packed;
768
769 struct smb2_set_info_req {
770         struct smb2_hdr hdr;
771         __le16 StructureSize; /* Must be 33 */
772         __u8   InfoType;
773         __u8   FileInfoClass;
774         __le32 BufferLength;
775         __le16 BufferOffset;
776         __u16  Reserved;
777         __le32 AdditionalInformation;
778         __u64  PersistentFileId; /* opaque endianness */
779         __u64  VolatileFileId; /* opaque endianness */
780         __u8   Buffer[1];
781 } __packed;
782
783 struct smb2_set_info_rsp {
784         struct smb2_hdr hdr;
785         __le16 StructureSize; /* Must be 2 */
786 } __packed;
787
788 struct smb2_oplock_break {
789         struct smb2_hdr hdr;
790         __le16 StructureSize; /* Must be 24 */
791         __u8   OplockLevel;
792         __u8   Reserved;
793         __le32 Reserved2;
794         __u64  PersistentFid;
795         __u64  VolatileFid;
796 } __packed;
797
798 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
799
800 struct smb2_lease_break {
801         struct smb2_hdr hdr;
802         __le16 StructureSize; /* Must be 44 */
803         __le16 Reserved;
804         __le32 Flags;
805         __u8   LeaseKey[16];
806         __le32 CurrentLeaseState;
807         __le32 NewLeaseState;
808         __le32 BreakReason;
809         __le32 AccessMaskHint;
810         __le32 ShareMaskHint;
811 } __packed;
812
813 struct smb2_lease_ack {
814         struct smb2_hdr hdr;
815         __le16 StructureSize; /* Must be 36 */
816         __le16 Reserved;
817         __le32 Flags;
818         __u8   LeaseKey[16];
819         __le32 LeaseState;
820         __le64 LeaseDuration;
821 } __packed;
822
823 /*
824  *      PDU infolevel structure definitions
825  *      BB consider moving to a different header
826  */
827
828 /* File System Information Classes */
829 #define FS_VOLUME_INFORMATION           1 /* Query */
830 #define FS_LABEL_INFORMATION            2 /* Set */
831 #define FS_SIZE_INFORMATION             3 /* Query */
832 #define FS_DEVICE_INFORMATION           4 /* Query */
833 #define FS_ATTRIBUTE_INFORMATION        5 /* Query */
834 #define FS_CONTROL_INFORMATION          6 /* Query, Set */
835 #define FS_FULL_SIZE_INFORMATION        7 /* Query */
836 #define FS_OBJECT_ID_INFORMATION        8 /* Query, Set */
837 #define FS_DRIVER_PATH_INFORMATION      9 /* Query */
838
839 struct smb2_fs_full_size_info {
840         __le64 TotalAllocationUnits;
841         __le64 CallerAvailableAllocationUnits;
842         __le64 ActualAvailableAllocationUnits;
843         __le32 SectorsPerAllocationUnit;
844         __le32 BytesPerSector;
845 } __packed;
846
847 /* partial list of QUERY INFO levels */
848 #define FILE_DIRECTORY_INFORMATION      1
849 #define FILE_FULL_DIRECTORY_INFORMATION 2
850 #define FILE_BOTH_DIRECTORY_INFORMATION 3
851 #define FILE_BASIC_INFORMATION          4
852 #define FILE_STANDARD_INFORMATION       5
853 #define FILE_INTERNAL_INFORMATION       6
854 #define FILE_EA_INFORMATION             7
855 #define FILE_ACCESS_INFORMATION         8
856 #define FILE_NAME_INFORMATION           9
857 #define FILE_RENAME_INFORMATION         10
858 #define FILE_LINK_INFORMATION           11
859 #define FILE_NAMES_INFORMATION          12
860 #define FILE_DISPOSITION_INFORMATION    13
861 #define FILE_POSITION_INFORMATION       14
862 #define FILE_FULL_EA_INFORMATION        15
863 #define FILE_MODE_INFORMATION           16
864 #define FILE_ALIGNMENT_INFORMATION      17
865 #define FILE_ALL_INFORMATION            18
866 #define FILE_ALLOCATION_INFORMATION     19
867 #define FILE_END_OF_FILE_INFORMATION    20
868 #define FILE_ALTERNATE_NAME_INFORMATION 21
869 #define FILE_STREAM_INFORMATION         22
870 #define FILE_PIPE_INFORMATION           23
871 #define FILE_PIPE_LOCAL_INFORMATION     24
872 #define FILE_PIPE_REMOTE_INFORMATION    25
873 #define FILE_MAILSLOT_QUERY_INFORMATION 26
874 #define FILE_MAILSLOT_SET_INFORMATION   27
875 #define FILE_COMPRESSION_INFORMATION    28
876 #define FILE_OBJECT_ID_INFORMATION      29
877 /* Number 30 not defined in documents */
878 #define FILE_MOVE_CLUSTER_INFORMATION   31
879 #define FILE_QUOTA_INFORMATION          32
880 #define FILE_REPARSE_POINT_INFORMATION  33
881 #define FILE_NETWORK_OPEN_INFORMATION   34
882 #define FILE_ATTRIBUTE_TAG_INFORMATION  35
883 #define FILE_TRACKING_INFORMATION       36
884 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
885 #define FILEID_FULL_DIRECTORY_INFORMATION 38
886 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
887 #define FILE_SHORT_NAME_INFORMATION     40
888 #define FILE_SFIO_RESERVE_INFORMATION   44
889 #define FILE_SFIO_VOLUME_INFORMATION    45
890 #define FILE_HARD_LINK_INFORMATION      46
891 #define FILE_NORMALIZED_NAME_INFORMATION 48
892 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
893 #define FILE_STANDARD_LINK_INFORMATION  54
894
895 struct smb2_file_internal_info {
896         __le64 IndexNumber;
897 } __packed; /* level 6 Query */
898
899 struct smb2_file_rename_info { /* encoding of request for level 10 */
900         __u8   ReplaceIfExists; /* 1 = replace existing target with new */
901                                 /* 0 = fail if target already exists */
902         __u8   Reserved[7];
903         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
904         __le32 FileNameLength;
905         char   FileName[0];     /* New name to be assigned */
906 } __packed; /* level 10 Set */
907
908 struct smb2_file_link_info { /* encoding of request for level 11 */
909         __u8   ReplaceIfExists; /* 1 = replace existing link with new */
910                                 /* 0 = fail if link already exists */
911         __u8   Reserved[7];
912         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
913         __le32 FileNameLength;
914         char   FileName[0];     /* Name to be assigned to new link */
915 } __packed; /* level 11 Set */
916
917 /*
918  * This level 18, although with struct with same name is different from cifs
919  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
920  * CurrentByteOffset.
921  */
922 struct smb2_file_all_info { /* data block encoding of response to level 18 */
923         __le64 CreationTime;    /* Beginning of FILE_BASIC_INFO equivalent */
924         __le64 LastAccessTime;
925         __le64 LastWriteTime;
926         __le64 ChangeTime;
927         __le32 Attributes;
928         __u32  Pad1;            /* End of FILE_BASIC_INFO_INFO equivalent */
929         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
930         __le64 EndOfFile;       /* size ie offset to first free byte in file */
931         __le32 NumberOfLinks;   /* hard links */
932         __u8   DeletePending;
933         __u8   Directory;
934         __u16  Pad2;            /* End of FILE_STANDARD_INFO equivalent */
935         __le64 IndexNumber;
936         __le32 EASize;
937         __le32 AccessFlags;
938         __le64 CurrentByteOffset;
939         __le32 Mode;
940         __le32 AlignmentRequirement;
941         __le32 FileNameLength;
942         char   FileName[1];
943 } __packed; /* level 18 Query */
944
945 struct smb2_file_eof_info { /* encoding of request for level 10 */
946         __le64 EndOfFile; /* new end of file value */
947 } __packed; /* level 20 Set */
948
949 #endif                          /* _SMB2PDU_H */