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 SMB2_INTERNAL_CMD	cpu_to_le16(0xFFFF)
84 
85 #define NUMBER_OF_SMB2_COMMANDS	0x0013
86 
87 /* 52 transform hdr + 64 hdr + 88 create rsp */
88 #define SMB2_TRANSFORM_HEADER_SIZE 52
89 #define MAX_SMB2_HDR_SIZE 204
90 
91 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
92 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
93 
94 /*
95  * SMB2 Header Definition
96  *
97  * "MBZ" :  Must be Zero
98  * "BB"  :  BugBug, Something to check/review/analyze later
99  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
100  *
101  */
102 
103 #define SMB2_HEADER_STRUCTURE_SIZE cpu_to_le16(64)
104 
105 struct smb2_sync_hdr {
106 	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
107 	__le16 StructureSize;	/* 64 */
108 	__le16 CreditCharge;	/* MBZ */
109 	__le32 Status;		/* Error from server */
110 	__le16 Command;
111 	__le16 CreditRequest;  /* CreditResponse */
112 	__le32 Flags;
113 	__le32 NextCommand;
114 	__le64 MessageId;
115 	__le32 ProcessId;
116 	__u32  TreeId;		/* opaque - so do not make little endian */
117 	__u64  SessionId;	/* opaque - so do not make little endian */
118 	__u8   Signature[16];
119 } __packed;
120 
121 struct smb2_sync_pdu {
122 	struct smb2_sync_hdr sync_hdr;
123 	__le16 StructureSize2; /* size of wct area (varies, request specific) */
124 } __packed;
125 
126 #define SMB3_AES128CCM_NONCE 11
127 #define SMB3_AES128GCM_NONCE 12
128 
129 struct smb2_transform_hdr {
130 	__le32 ProtocolId;	/* 0xFD 'S' 'M' 'B' */
131 	__u8   Signature[16];
132 	__u8   Nonce[16];
133 	__le32 OriginalMessageSize;
134 	__u16  Reserved1;
135 	__le16 Flags; /* EncryptionAlgorithm */
136 	__u64  SessionId;
137 } __packed;
138 
139 /*
140  *	SMB2 flag definitions
141  */
142 #define SMB2_FLAGS_SERVER_TO_REDIR	cpu_to_le32(0x00000001)
143 #define SMB2_FLAGS_ASYNC_COMMAND	cpu_to_le32(0x00000002)
144 #define SMB2_FLAGS_RELATED_OPERATIONS	cpu_to_le32(0x00000004)
145 #define SMB2_FLAGS_SIGNED		cpu_to_le32(0x00000008)
146 #define SMB2_FLAGS_PRIORITY_MASK	cpu_to_le32(0x00000070) /* SMB3.1.1 */
147 #define SMB2_FLAGS_DFS_OPERATIONS	cpu_to_le32(0x10000000)
148 #define SMB2_FLAGS_REPLAY_OPERATION	cpu_to_le32(0x20000000) /* SMB3 & up */
149 
150 /*
151  *	Definitions for SMB2 Protocol Data Units (network frames)
152  *
153  *  See MS-SMB2.PDF specification for protocol details.
154  *  The Naming convention is the lower case version of the SMB2
155  *  command code name for the struct. Note that structures must be packed.
156  *
157  */
158 
159 #define COMPOUND_FID 0xFFFFFFFFFFFFFFFFULL
160 
161 #define SMB2_ERROR_STRUCTURE_SIZE2 cpu_to_le16(9)
162 
163 struct smb2_err_rsp {
164 	struct smb2_sync_hdr sync_hdr;
165 	__le16 StructureSize;
166 	__le16 Reserved; /* MBZ */
167 	__le32 ByteCount;  /* even if zero, at least one byte follows */
168 	__u8   ErrorData[1];  /* variable length */
169 } __packed;
170 
171 #define SYMLINK_ERROR_TAG 0x4c4d5953
172 
173 struct smb2_symlink_err_rsp {
174 	__le32 SymLinkLength;
175 	__le32 SymLinkErrorTag;
176 	__le32 ReparseTag;
177 	__le16 ReparseDataLength;
178 	__le16 UnparsedPathLength;
179 	__le16 SubstituteNameOffset;
180 	__le16 SubstituteNameLength;
181 	__le16 PrintNameOffset;
182 	__le16 PrintNameLength;
183 	__le32 Flags;
184 	__u8  PathBuffer[0];
185 } __packed;
186 
187 /* SMB 3.1.1 and later dialects. See MS-SMB2 section 2.2.2.1 */
188 struct smb2_error_context_rsp {
189 	__le32 ErrorDataLength;
190 	__le32 ErrorId;
191 	__u8  ErrorContextData; /* ErrorDataLength long array */
192 } __packed;
193 
194 /* Defines for Type field below (see MS-SMB2 2.2.2.2.2.1) */
195 #define MOVE_DST_IPADDR_V4	cpu_to_le32(0x00000001)
196 #define MOVE_DST_IPADDR_V6	cpu_to_le32(0x00000002)
197 
198 struct move_dst_ipaddr {
199 	__le32 Type;
200 	__u32  Reserved;
201 	__u8   address[16]; /* IPv4 followed by 12 bytes rsvd or IPv6 address */
202 } __packed;
203 
204 struct share_redirect_error_context_rsp {
205 	__le32 StructureSize;
206 	__le32 NotificationType;
207 	__le32 ResourceNameOffset;
208 	__le32 ResourceNameLength;
209 	__le16 Flags;
210 	__le16 TargetType;
211 	__le32 IPAddrCount;
212 	struct move_dst_ipaddr IpAddrMoveList[0];
213 	/* __u8 ResourceName[] */ /* Name of share as counted Unicode string */
214 } __packed;
215 
216 #define SMB2_CLIENT_GUID_SIZE 16
217 
218 struct smb2_negotiate_req {
219 	struct smb2_sync_hdr sync_hdr;
220 	__le16 StructureSize; /* Must be 36 */
221 	__le16 DialectCount;
222 	__le16 SecurityMode;
223 	__le16 Reserved;	/* MBZ */
224 	__le32 Capabilities;
225 	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
226 	/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
227 	__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
228 	__le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
229 	__le16 Reserved2;
230 	__le16 Dialects[1]; /* One dialect (vers=) at a time for now */
231 } __packed;
232 
233 /* Dialects */
234 #define SMB10_PROT_ID 0x0000 /* local only, not sent on wire w/CIFS negprot */
235 #define SMB20_PROT_ID 0x0202
236 #define SMB21_PROT_ID 0x0210
237 #define SMB30_PROT_ID 0x0300
238 #define SMB302_PROT_ID 0x0302
239 #define SMB311_PROT_ID 0x0311
240 #define BAD_PROT_ID   0xFFFF
241 
242 /* SecurityMode flags */
243 #define	SMB2_NEGOTIATE_SIGNING_ENABLED	0x0001
244 #define SMB2_NEGOTIATE_SIGNING_REQUIRED	0x0002
245 #define SMB2_SEC_MODE_FLAGS_ALL		0x0003
246 
247 /* Capabilities flags */
248 #define SMB2_GLOBAL_CAP_DFS		0x00000001
249 #define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
250 #define SMB2_GLOBAL_CAP_LARGE_MTU	0X00000004 /* Resp only New to SMB2.1 */
251 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
252 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
253 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
254 #define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
255 /* Internal types */
256 #define SMB2_NT_FIND			0x00100000
257 #define SMB2_LARGE_FILES		0x00200000
258 
259 
260 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
261 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES	cpu_to_le16(1)
262 #define SMB2_ENCRYPTION_CAPABILITIES		cpu_to_le16(2)
263 #define SMB2_COMPRESSION_CAPABILITIES		cpu_to_le16(3)
264 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID	cpu_to_le16(5)
265 #define SMB2_POSIX_EXTENSIONS_AVAILABLE		cpu_to_le16(0x100)
266 
267 struct smb2_neg_context {
268 	__le16	ContextType;
269 	__le16	DataLength;
270 	__le32	Reserved;
271 	/* Followed by array of data */
272 } __packed;
273 
274 #define SMB311_SALT_SIZE			32
275 /* Hash Algorithm Types */
276 #define SMB2_PREAUTH_INTEGRITY_SHA512	cpu_to_le16(0x0001)
277 #define SMB2_PREAUTH_HASH_SIZE 64
278 
279 #define MIN_PREAUTH_CTXT_DATA_LEN	(SMB311_SALT_SIZE + 6)
280 struct smb2_preauth_neg_context {
281 	__le16	ContextType; /* 1 */
282 	__le16	DataLength;
283 	__le32	Reserved;
284 	__le16	HashAlgorithmCount; /* 1 */
285 	__le16	SaltLength;
286 	__le16	HashAlgorithms; /* HashAlgorithms[0] since only one defined */
287 	__u8	Salt[SMB311_SALT_SIZE];
288 } __packed;
289 
290 /* Encryption Algorithms Ciphers */
291 #define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
292 #define SMB2_ENCRYPTION_AES128_GCM	cpu_to_le16(0x0002)
293 
294 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
295 #define MIN_ENCRYPT_CTXT_DATA_LEN	4
296 struct smb2_encryption_neg_context {
297 	__le16	ContextType; /* 2 */
298 	__le16	DataLength;
299 	__le32	Reserved;
300 	__le16	CipherCount; /* AES-128-GCM and AES-128-CCM */
301 	__le16	Ciphers[2];
302 } __packed;
303 
304 /* See MS-SMB2 2.2.3.1.3 */
305 #define SMB3_COMPRESS_NONE	cpu_to_le16(0x0000)
306 #define SMB3_COMPRESS_LZNT1	cpu_to_le16(0x0001)
307 #define SMB3_COMPRESS_LZ77	cpu_to_le16(0x0002)
308 #define SMB3_COMPRESS_LZ77_HUFF	cpu_to_le16(0x0003)
309 
310 struct smb2_compression_capabilities_context {
311 	__le16	ContextType; /* 3 */
312 	__le16  DataLength;
313 	__u32	Reserved;
314 	__le16	CompressionAlgorithmCount;
315 	__u16	Padding;
316 	__u32	Reserved1;
317 	__le16	CompressionAlgorithms[3];
318 } __packed;
319 
320 /*
321  * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
322  * Its struct simply contains NetName, an array of Unicode characters
323  */
324 struct smb2_netname_neg_context {
325 	__le16	ContextType; /* 0x100 */
326 	__le16	DataLength;
327 	__le32	Reserved;
328 	__le16	NetName[0]; /* hostname of target converted to UCS-2 */
329 } __packed;
330 
331 #define POSIX_CTXT_DATA_LEN	16
332 struct smb2_posix_neg_context {
333 	__le16	ContextType; /* 0x100 */
334 	__le16	DataLength;
335 	__le32	Reserved;
336 	__u8	Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
337 } __packed;
338 
339 struct smb2_negotiate_rsp {
340 	struct smb2_sync_hdr sync_hdr;
341 	__le16 StructureSize;	/* Must be 65 */
342 	__le16 SecurityMode;
343 	__le16 DialectRevision;
344 	__le16 NegotiateContextCount;	/* Prior to SMB3.1.1 was Reserved & MBZ */
345 	__u8   ServerGUID[16];
346 	__le32 Capabilities;
347 	__le32 MaxTransactSize;
348 	__le32 MaxReadSize;
349 	__le32 MaxWriteSize;
350 	__le64 SystemTime;	/* MBZ */
351 	__le64 ServerStartTime;
352 	__le16 SecurityBufferOffset;
353 	__le16 SecurityBufferLength;
354 	__le32 NegotiateContextOffset;	/* Pre:SMB3.1.1 was reserved/ignored */
355 	__u8   Buffer[1];	/* variable length GSS security buffer */
356 } __packed;
357 
358 /* Flags */
359 #define SMB2_SESSION_REQ_FLAG_BINDING		0x01
360 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA	0x04
361 
362 struct smb2_sess_setup_req {
363 	struct smb2_sync_hdr sync_hdr;
364 	__le16 StructureSize; /* Must be 25 */
365 	__u8   Flags;
366 	__u8   SecurityMode;
367 	__le32 Capabilities;
368 	__le32 Channel;
369 	__le16 SecurityBufferOffset;
370 	__le16 SecurityBufferLength;
371 	__u64 PreviousSessionId;
372 	__u8   Buffer[1];	/* variable length GSS security buffer */
373 } __packed;
374 
375 /* Currently defined SessionFlags */
376 #define SMB2_SESSION_FLAG_IS_GUEST	0x0001
377 #define SMB2_SESSION_FLAG_IS_NULL	0x0002
378 #define SMB2_SESSION_FLAG_ENCRYPT_DATA	0x0004
379 struct smb2_sess_setup_rsp {
380 	struct smb2_sync_hdr sync_hdr;
381 	__le16 StructureSize; /* Must be 9 */
382 	__le16 SessionFlags;
383 	__le16 SecurityBufferOffset;
384 	__le16 SecurityBufferLength;
385 	__u8   Buffer[1];	/* variable length GSS security buffer */
386 } __packed;
387 
388 struct smb2_logoff_req {
389 	struct smb2_sync_hdr sync_hdr;
390 	__le16 StructureSize;	/* Must be 4 */
391 	__le16 Reserved;
392 } __packed;
393 
394 struct smb2_logoff_rsp {
395 	struct smb2_sync_hdr sync_hdr;
396 	__le16 StructureSize;	/* Must be 4 */
397 	__le16 Reserved;
398 } __packed;
399 
400 /* Flags/Reserved for SMB3.1.1 */
401 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
402 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
403 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
404 
405 struct smb2_tree_connect_req {
406 	struct smb2_sync_hdr sync_hdr;
407 	__le16 StructureSize;	/* Must be 9 */
408 	__le16 Reserved; /* Flags in SMB3.1.1 */
409 	__le16 PathOffset;
410 	__le16 PathLength;
411 	__u8   Buffer[1];	/* variable length */
412 } __packed;
413 
414 /* See MS-SMB2 section 2.2.9.2 */
415 /* Context Types */
416 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
417 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
418 
419 struct tree_connect_contexts {
420 	__le16 ContextType;
421 	__le16 DataLength;
422 	__le32 Reserved;
423 	__u8   Data[0];
424 } __packed;
425 
426 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
427 struct smb3_blob_data {
428 	__le16 BlobSize;
429 	__u8   BlobData[0];
430 } __packed;
431 
432 /* Valid values for Attr */
433 #define SE_GROUP_MANDATORY		0x00000001
434 #define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
435 #define SE_GROUP_ENABLED		0x00000004
436 #define SE_GROUP_OWNER			0x00000008
437 #define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
438 #define SE_GROUP_INTEGRITY		0x00000020
439 #define SE_GROUP_INTEGRITY_ENABLED	0x00000040
440 #define SE_GROUP_RESOURCE		0x20000000
441 #define SE_GROUP_LOGON_ID		0xC0000000
442 
443 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
444 
445 struct sid_array_data {
446 	__le16 SidAttrCount;
447 	/* SidAttrList - array of sid_attr_data structs */
448 } __packed;
449 
450 struct luid_attr_data {
451 
452 } __packed;
453 
454 /*
455  * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
456  * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
457  */
458 
459 struct privilege_array_data {
460 	__le16 PrivilegeCount;
461 	/* array of privilege_data structs */
462 } __packed;
463 
464 struct remoted_identity_tcon_context {
465 	__le16 TicketType; /* must be 0x0001 */
466 	__le16 TicketSize; /* total size of this struct */
467 	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
468 	__le16 UserName; /* offset to null terminated Unicode username string */
469 	__le16 Domain; /* offset to null terminated Unicode domain name */
470 	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
471 	__le16 RestrictedGroups; /* similar to above */
472 	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
473 	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
474 	__le16 Owner; /* offset to BLOB_DATA struct */
475 	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
476 	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
477 	__le16 UserClaims; /* offset to BLOB_DATA struct */
478 	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
479 	__u8   TicketInfo[0]; /* variable length buf - remoted identity data */
480 } __packed;
481 
482 struct smb2_tree_connect_req_extension {
483 	__le32 TreeConnectContextOffset;
484 	__le16 TreeConnectContextCount;
485 	__u8  Reserved[10];
486 	__u8  PathName[0]; /* variable sized array */
487 	/* followed by array of TreeConnectContexts */
488 } __packed;
489 
490 struct smb2_tree_connect_rsp {
491 	struct smb2_sync_hdr sync_hdr;
492 	__le16 StructureSize;	/* Must be 16 */
493 	__u8   ShareType;  /* see below */
494 	__u8   Reserved;
495 	__le32 ShareFlags; /* see below */
496 	__le32 Capabilities; /* see below */
497 	__le32 MaximalAccess;
498 } __packed;
499 
500 /* Possible ShareType values */
501 #define SMB2_SHARE_TYPE_DISK	0x01
502 #define SMB2_SHARE_TYPE_PIPE	0x02
503 #define	SMB2_SHARE_TYPE_PRINT	0x03
504 
505 /*
506  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
507  * must be set (any of the remaining, SHI1005, flags may be set individually
508  * or in combination.
509  */
510 #define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
511 #define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
512 #define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
513 #define SMB2_SHAREFLAG_NO_CACHING			0x00000030
514 #define SHI1005_FLAGS_DFS				0x00000001
515 #define SHI1005_FLAGS_DFS_ROOT				0x00000002
516 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS		0x00000100
517 #define SHI1005_FLAGS_FORCE_SHARED_DELETE		0x00000200
518 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING		0x00000400
519 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
520 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK		0x00001000
521 #define SHI1005_FLAGS_ENABLE_HASH_V1			0x00002000
522 #define SHI1005_FLAGS_ENABLE_HASH_V2			0x00004000
523 #define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
524 #define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
525 #define SHI1005_FLAGS_ALL				0x0004FF33
526 
527 /* Possible share capabilities */
528 #define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
529 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
530 #define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
531 #define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
532 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
533 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
534 
535 struct smb2_tree_disconnect_req {
536 	struct smb2_sync_hdr sync_hdr;
537 	__le16 StructureSize;	/* Must be 4 */
538 	__le16 Reserved;
539 } __packed;
540 
541 struct smb2_tree_disconnect_rsp {
542 	struct smb2_sync_hdr sync_hdr;
543 	__le16 StructureSize;	/* Must be 4 */
544 	__le16 Reserved;
545 } __packed;
546 
547 /* File Attrubutes */
548 #define FILE_ATTRIBUTE_READONLY			0x00000001
549 #define FILE_ATTRIBUTE_HIDDEN			0x00000002
550 #define FILE_ATTRIBUTE_SYSTEM			0x00000004
551 #define FILE_ATTRIBUTE_DIRECTORY		0x00000010
552 #define FILE_ATTRIBUTE_ARCHIVE			0x00000020
553 #define FILE_ATTRIBUTE_NORMAL			0x00000080
554 #define FILE_ATTRIBUTE_TEMPORARY		0x00000100
555 #define FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
556 #define FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
557 #define FILE_ATTRIBUTE_COMPRESSED		0x00000800
558 #define FILE_ATTRIBUTE_OFFLINE			0x00001000
559 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
560 #define FILE_ATTRIBUTE_ENCRYPTED		0x00004000
561 #define FILE_ATTRIBUTE_INTEGRITY_STREAM		0x00008000
562 #define FILE_ATTRIBUTE_NO_SCRUB_DATA		0x00020000
563 
564 /* Oplock levels */
565 #define SMB2_OPLOCK_LEVEL_NONE		0x00
566 #define SMB2_OPLOCK_LEVEL_II		0x01
567 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
568 #define SMB2_OPLOCK_LEVEL_BATCH		0x09
569 #define SMB2_OPLOCK_LEVEL_LEASE		0xFF
570 /* Non-spec internal type */
571 #define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99
572 
573 /* Desired Access Flags */
574 #define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
575 #define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
576 #define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
577 #define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
578 #define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
579 #define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
580 #define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
581 #define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
582 #define FILE_DELETE_LE			cpu_to_le32(0x00010000)
583 #define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
584 #define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
585 #define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
586 #define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
587 #define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
588 #define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
589 #define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
590 #define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
591 #define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
592 #define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)
593 
594 /* ShareAccess Flags */
595 #define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
596 #define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
597 #define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
598 #define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)
599 
600 /* CreateDisposition Flags */
601 #define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
602 #define FILE_OPEN_LE			cpu_to_le32(0x00000001)
603 #define FILE_CREATE_LE			cpu_to_le32(0x00000002)
604 #define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
605 #define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
606 #define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)
607 
608 /* CreateOptions Flags */
609 #define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
610 /* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
611 #define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
612 #define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
613 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
614 #define FILE_SYNCHRONOUS_IO_ALERT_LE	cpu_to_le32(0x00000010)
615 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE	cpu_to_le32(0x00000020)
616 #define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
617 #define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
618 #define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
619 #define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
620 #define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000)
621 #define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
622 #define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
623 #define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
624 #define FILE_RESERVE_OPFILTER_LE	cpu_to_le32(0x00100000)
625 #define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
626 #define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
627 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
628 
629 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
630 			| FILE_READ_ATTRIBUTES_LE)
631 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
632 			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
633 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
634 
635 /* Impersonation Levels */
636 #define IL_ANONYMOUS		cpu_to_le32(0x00000000)
637 #define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
638 #define IL_IMPERSONATION	cpu_to_le32(0x00000002)
639 #define IL_DELEGATE		cpu_to_le32(0x00000003)
640 
641 /* Create Context Values */
642 #define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
643 #define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
644 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
645 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
646 #define SMB2_CREATE_ALLOCATION_SIZE		"AISi"
647 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
648 #define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
649 #define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
650 #define SMB2_CREATE_REQUEST_LEASE		"RqLs"
651 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2	"DH2Q"
652 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2	"DH2C"
653 #define SMB2_CREATE_APP_INSTANCE_ID	0x45BCA66AEFA7F74A9008FA462E144D74
654 #define SMB2_CREATE_APP_INSTANCE_VERSION 0xB982D0B73B56074FA07B524A8116A010
655 #define SVHDX_OPEN_DEVICE_CONTEX	0x9CCBCF9E04C1E643980E158DA1F6EC83
656 #define SMB2_CREATE_TAG_POSIX		0x93AD25509CB411E7B42383DE968BCD7C
657 
658 /* Flag (SMB3 open response) values */
659 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
660 
661 /*
662  * Maximum number of iovs we need for an open/create request.
663  * [0] : struct smb2_create_req
664  * [1] : path
665  * [2] : lease context
666  * [3] : durable context
667  * [4] : posix context
668  * [5] : time warp context
669  * [6] : query id context
670  * [7] : compound padding
671  */
672 #define SMB2_CREATE_IOV_SIZE 8
673 
674 struct smb2_create_req {
675 	struct smb2_sync_hdr sync_hdr;
676 	__le16 StructureSize;	/* Must be 57 */
677 	__u8   SecurityFlags;
678 	__u8   RequestedOplockLevel;
679 	__le32 ImpersonationLevel;
680 	__le64 SmbCreateFlags;
681 	__le64 Reserved;
682 	__le32 DesiredAccess;
683 	__le32 FileAttributes;
684 	__le32 ShareAccess;
685 	__le32 CreateDisposition;
686 	__le32 CreateOptions;
687 	__le16 NameOffset;
688 	__le16 NameLength;
689 	__le32 CreateContextsOffset;
690 	__le32 CreateContextsLength;
691 	__u8   Buffer[0];
692 } __packed;
693 
694 /*
695  * Maximum size of a SMB2_CREATE response is 64 (smb2 header) +
696  * 88 (fixed part of create response) + 520 (path) + 208 (contexts) +
697  * 2 bytes of padding.
698  */
699 #define MAX_SMB2_CREATE_RESPONSE_SIZE 880
700 
701 struct smb2_create_rsp {
702 	struct smb2_sync_hdr sync_hdr;
703 	__le16 StructureSize;	/* Must be 89 */
704 	__u8   OplockLevel;
705 	__u8   Flag;  /* 0x01 if reparse point */
706 	__le32 CreateAction;
707 	__le64 CreationTime;
708 	__le64 LastAccessTime;
709 	__le64 LastWriteTime;
710 	__le64 ChangeTime;
711 	__le64 AllocationSize;
712 	__le64 EndofFile;
713 	__le32 FileAttributes;
714 	__le32 Reserved2;
715 	__u64  PersistentFileId; /* opaque endianness */
716 	__u64  VolatileFileId; /* opaque endianness */
717 	__le32 CreateContextsOffset;
718 	__le32 CreateContextsLength;
719 	__u8   Buffer[1];
720 } __packed;
721 
722 struct create_context {
723 	__le32 Next;
724 	__le16 NameOffset;
725 	__le16 NameLength;
726 	__le16 Reserved;
727 	__le16 DataOffset;
728 	__le32 DataLength;
729 	__u8 Buffer[0];
730 } __packed;
731 
732 #define SMB2_LEASE_READ_CACHING_HE	0x01
733 #define SMB2_LEASE_HANDLE_CACHING_HE	0x02
734 #define SMB2_LEASE_WRITE_CACHING_HE	0x04
735 
736 #define SMB2_LEASE_NONE			cpu_to_le32(0x00)
737 #define SMB2_LEASE_READ_CACHING		cpu_to_le32(0x01)
738 #define SMB2_LEASE_HANDLE_CACHING	cpu_to_le32(0x02)
739 #define SMB2_LEASE_WRITE_CACHING	cpu_to_le32(0x04)
740 
741 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x02)
742 #define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET cpu_to_le32(0x00000004)
743 
744 #define SMB2_LEASE_KEY_SIZE 16
745 
746 struct lease_context {
747 	u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
748 	__le32 LeaseState;
749 	__le32 LeaseFlags;
750 	__le64 LeaseDuration;
751 } __packed;
752 
753 struct lease_context_v2 {
754 	u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
755 	__le32 LeaseState;
756 	__le32 LeaseFlags;
757 	__le64 LeaseDuration;
758 	__le64 ParentLeaseKeyLow;
759 	__le64 ParentLeaseKeyHigh;
760 	__le16 Epoch;
761 	__le16 Reserved;
762 } __packed;
763 
764 struct create_lease {
765 	struct create_context ccontext;
766 	__u8   Name[8];
767 	struct lease_context lcontext;
768 } __packed;
769 
770 struct create_lease_v2 {
771 	struct create_context ccontext;
772 	__u8   Name[8];
773 	struct lease_context_v2 lcontext;
774 	__u8   Pad[4];
775 } __packed;
776 
777 struct create_durable {
778 	struct create_context ccontext;
779 	__u8   Name[8];
780 	union {
781 		__u8  Reserved[16];
782 		struct {
783 			__u64 PersistentFileId;
784 			__u64 VolatileFileId;
785 		} Fid;
786 	} Data;
787 } __packed;
788 
789 struct create_posix {
790 	struct create_context ccontext;
791 	__u8	Name[16];
792 	__le32  Mode;
793 	__u32	Reserved;
794 } __packed;
795 
796 /* See MS-SMB2 2.2.13.2.11 */
797 /* Flags */
798 #define SMB2_DHANDLE_FLAG_PERSISTENT	0x00000002
799 struct durable_context_v2 {
800 	__le32 Timeout;
801 	__le32 Flags;
802 	__u64 Reserved;
803 	__u8 CreateGuid[16];
804 } __packed;
805 
806 struct create_durable_v2 {
807 	struct create_context ccontext;
808 	__u8   Name[8];
809 	struct durable_context_v2 dcontext;
810 } __packed;
811 
812 /* See MS-SMB2 2.2.13.2.12 */
813 struct durable_reconnect_context_v2 {
814 	struct {
815 		__u64 PersistentFileId;
816 		__u64 VolatileFileId;
817 	} Fid;
818 	__u8 CreateGuid[16];
819 	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
820 } __packed;
821 
822 /* See MS-SMB2 2.2.14.2.9 */
823 struct create_on_disk_id {
824 	struct create_context ccontext;
825 	__u8   Name[8];
826 	__le64 DiskFileId;
827 	__le64 VolumeId;
828 	__u32  Reserved[4];
829 } __packed;
830 
831 /* See MS-SMB2 2.2.14.2.12 */
832 struct durable_reconnect_context_v2_rsp {
833 	__le32 Timeout;
834 	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
835 } __packed;
836 
837 struct create_durable_handle_reconnect_v2 {
838 	struct create_context ccontext;
839 	__u8   Name[8];
840 	struct durable_reconnect_context_v2 dcontext;
841 	__u8   Pad[4];
842 } __packed;
843 
844 /* See MS-SMB2 2.2.13.2.5 */
845 struct crt_twarp_ctxt {
846 	struct create_context ccontext;
847 	__u8	Name[8];
848 	__le64	Timestamp;
849 
850 } __packed;
851 
852 /* See MS-SMB2 2.2.13.2.9 */
853 struct crt_query_id_ctxt {
854 	struct create_context ccontext;
855 	__u8	Name[8];
856 } __packed;
857 
858 #define COPY_CHUNK_RES_KEY_SIZE	24
859 struct resume_key_req {
860 	char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
861 	__le32	ContextLength;	/* MBZ */
862 	char	Context[0];	/* ignored, Windows sets to 4 bytes of zero */
863 } __packed;
864 
865 /* this goes in the ioctl buffer when doing a copychunk request */
866 struct copychunk_ioctl {
867 	char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
868 	__le32 ChunkCount; /* we are only sending 1 */
869 	__le32 Reserved;
870 	/* array will only be one chunk long for us */
871 	__le64 SourceOffset;
872 	__le64 TargetOffset;
873 	__le32 Length; /* how many bytes to copy */
874 	__u32 Reserved2;
875 } __packed;
876 
877 /* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
878 struct file_zero_data_information {
879 	__le64	FileOffset;
880 	__le64	BeyondFinalZero;
881 } __packed;
882 
883 struct copychunk_ioctl_rsp {
884 	__le32 ChunksWritten;
885 	__le32 ChunkBytesWritten;
886 	__le32 TotalBytesWritten;
887 } __packed;
888 
889 struct fsctl_set_integrity_information_req {
890 	__le16	ChecksumAlgorithm;
891 	__le16	Reserved;
892 	__le32	Flags;
893 } __packed;
894 
895 struct fsctl_get_integrity_information_rsp {
896 	__le16	ChecksumAlgorithm;
897 	__le16	Reserved;
898 	__le32	Flags;
899 	__le32	ChecksumChunkSizeInBytes;
900 	__le32	ClusterSizeInBytes;
901 } __packed;
902 
903 struct file_allocated_range_buffer {
904 	__le64	file_offset;
905 	__le64	length;
906 } __packed;
907 
908 /* Integrity ChecksumAlgorithm choices for above */
909 #define	CHECKSUM_TYPE_NONE	0x0000
910 #define	CHECKSUM_TYPE_CRC64	0x0002
911 #define CHECKSUM_TYPE_UNCHANGED	0xFFFF	/* set only */
912 
913 /* Integrity flags for above */
914 #define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF	0x00000001
915 
916 /* Reparse structures - see MS-FSCC 2.1.2 */
917 
918 /* struct fsctl_reparse_info_req is empty, only response structs (see below) */
919 
920 struct reparse_data_buffer {
921 	__le32	ReparseTag;
922 	__le16	ReparseDataLength;
923 	__u16	Reserved;
924 	__u8	DataBuffer[0]; /* Variable Length */
925 } __packed;
926 
927 struct reparse_guid_data_buffer {
928 	__le32	ReparseTag;
929 	__le16	ReparseDataLength;
930 	__u16	Reserved;
931 	__u8	ReparseGuid[16];
932 	__u8	DataBuffer[0]; /* Variable Length */
933 } __packed;
934 
935 struct reparse_mount_point_data_buffer {
936 	__le32	ReparseTag;
937 	__le16	ReparseDataLength;
938 	__u16	Reserved;
939 	__le16	SubstituteNameOffset;
940 	__le16	SubstituteNameLength;
941 	__le16	PrintNameOffset;
942 	__le16	PrintNameLength;
943 	__u8	PathBuffer[0]; /* Variable Length */
944 } __packed;
945 
946 #define SYMLINK_FLAG_RELATIVE 0x00000001
947 
948 struct reparse_symlink_data_buffer {
949 	__le32	ReparseTag;
950 	__le16	ReparseDataLength;
951 	__u16	Reserved;
952 	__le16	SubstituteNameOffset;
953 	__le16	SubstituteNameLength;
954 	__le16	PrintNameOffset;
955 	__le16	PrintNameLength;
956 	__le32	Flags;
957 	__u8	PathBuffer[0]; /* Variable Length */
958 } __packed;
959 
960 /* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
961 
962 
963 /* See MS-DFSC 2.2.2 */
964 struct fsctl_get_dfs_referral_req {
965 	__le16 MaxReferralLevel;
966 	__u8 RequestFileName[];
967 } __packed;
968 
969 /* DFS response is struct get_dfs_refer_rsp */
970 
971 /* See MS-SMB2 2.2.31.3 */
972 struct network_resiliency_req {
973 	__le32 Timeout;
974 	__le32 Reserved;
975 } __packed;
976 /* There is no buffer for the response ie no struct network_resiliency_rsp */
977 
978 
979 struct validate_negotiate_info_req {
980 	__le32 Capabilities;
981 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
982 	__le16 SecurityMode;
983 	__le16 DialectCount;
984 	__le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
985 } __packed;
986 
987 struct validate_negotiate_info_rsp {
988 	__le32 Capabilities;
989 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
990 	__le16 SecurityMode;
991 	__le16 Dialect; /* Dialect in use for the connection */
992 } __packed;
993 
994 #define RSS_CAPABLE	cpu_to_le32(0x00000001)
995 #define RDMA_CAPABLE	cpu_to_le32(0x00000002)
996 
997 #define INTERNETWORK	cpu_to_le16(0x0002)
998 #define INTERNETWORKV6	cpu_to_le16(0x0017)
999 
1000 struct network_interface_info_ioctl_rsp {
1001 	__le32 Next; /* next interface. zero if this is last one */
1002 	__le32 IfIndex;
1003 	__le32 Capability; /* RSS or RDMA Capable */
1004 	__le32 Reserved;
1005 	__le64 LinkSpeed;
1006 	__le16 Family;
1007 	__u8 Buffer[126];
1008 } __packed;
1009 
1010 struct iface_info_ipv4 {
1011 	__be16 Port;
1012 	__be32 IPv4Address;
1013 	__be64 Reserved;
1014 } __packed;
1015 
1016 struct iface_info_ipv6 {
1017 	__be16 Port;
1018 	__be32 FlowInfo;
1019 	__u8   IPv6Address[16];
1020 	__be32 ScopeId;
1021 } __packed;
1022 
1023 #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
1024 
1025 struct compress_ioctl {
1026 	__le16 CompressionState; /* See cifspdu.h for possible flag values */
1027 } __packed;
1028 
1029 struct duplicate_extents_to_file {
1030 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1031 	__u64 VolatileFileHandle;
1032 	__le64 SourceFileOffset;
1033 	__le64 TargetFileOffset;
1034 	__le64 ByteCount;  /* Bytes to be copied */
1035 } __packed;
1036 
1037 /*
1038  * Maximum number of iovs we need for an ioctl request.
1039  * [0] : struct smb2_ioctl_req
1040  * [1] : in_data
1041  */
1042 #define SMB2_IOCTL_IOV_SIZE 2
1043 
1044 struct smb2_ioctl_req {
1045 	struct smb2_sync_hdr sync_hdr;
1046 	__le16 StructureSize;	/* Must be 57 */
1047 	__u16 Reserved;
1048 	__le32 CtlCode;
1049 	__u64  PersistentFileId; /* opaque endianness */
1050 	__u64  VolatileFileId; /* opaque endianness */
1051 	__le32 InputOffset;
1052 	__le32 InputCount;
1053 	__le32 MaxInputResponse;
1054 	__le32 OutputOffset;
1055 	__le32 OutputCount;
1056 	__le32 MaxOutputResponse;
1057 	__le32 Flags;
1058 	__u32  Reserved2;
1059 	__u8   Buffer[0];
1060 } __packed;
1061 
1062 struct smb2_ioctl_rsp {
1063 	struct smb2_sync_hdr sync_hdr;
1064 	__le16 StructureSize;	/* Must be 57 */
1065 	__u16 Reserved;
1066 	__le32 CtlCode;
1067 	__u64  PersistentFileId; /* opaque endianness */
1068 	__u64  VolatileFileId; /* opaque endianness */
1069 	__le32 InputOffset;
1070 	__le32 InputCount;
1071 	__le32 OutputOffset;
1072 	__le32 OutputCount;
1073 	__le32 Flags;
1074 	__u32  Reserved2;
1075 	/* char * buffer[] */
1076 } __packed;
1077 
1078 /* Currently defined values for close flags */
1079 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
1080 struct smb2_close_req {
1081 	struct smb2_sync_hdr sync_hdr;
1082 	__le16 StructureSize;	/* Must be 24 */
1083 	__le16 Flags;
1084 	__le32 Reserved;
1085 	__u64  PersistentFileId; /* opaque endianness */
1086 	__u64  VolatileFileId; /* opaque endianness */
1087 } __packed;
1088 
1089 /*
1090  * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
1091  */
1092 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
1093 
1094 struct smb2_close_rsp {
1095 	struct smb2_sync_hdr sync_hdr;
1096 	__le16 StructureSize; /* 60 */
1097 	__le16 Flags;
1098 	__le32 Reserved;
1099 	__le64 CreationTime;
1100 	__le64 LastAccessTime;
1101 	__le64 LastWriteTime;
1102 	__le64 ChangeTime;
1103 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1104 	__le64 EndOfFile;
1105 	__le32 Attributes;
1106 } __packed;
1107 
1108 struct smb2_flush_req {
1109 	struct smb2_sync_hdr sync_hdr;
1110 	__le16 StructureSize;	/* Must be 24 */
1111 	__le16 Reserved1;
1112 	__le32 Reserved2;
1113 	__u64  PersistentFileId; /* opaque endianness */
1114 	__u64  VolatileFileId; /* opaque endianness */
1115 } __packed;
1116 
1117 struct smb2_flush_rsp {
1118 	struct smb2_sync_hdr sync_hdr;
1119 	__le16 StructureSize;
1120 	__le16 Reserved;
1121 } __packed;
1122 
1123 /* For read request Flags field below, following flag is defined for SMB3.02 */
1124 #define SMB2_READFLAG_READ_UNBUFFERED	0x01
1125 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
1126 
1127 /* Channel field for read and write: exactly one of following flags can be set*/
1128 #define SMB2_CHANNEL_NONE	cpu_to_le32(0x00000000)
1129 #define SMB2_CHANNEL_RDMA_V1	cpu_to_le32(0x00000001) /* SMB3 or later */
1130 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002) /* >= SMB3.02 */
1131 
1132 /* SMB2 read request without RFC1001 length at the beginning */
1133 struct smb2_read_plain_req {
1134 	struct smb2_sync_hdr sync_hdr;
1135 	__le16 StructureSize; /* Must be 49 */
1136 	__u8   Padding; /* offset from start of SMB2 header to place read */
1137 	__u8   Flags; /* MBZ unless SMB3.02 or later */
1138 	__le32 Length;
1139 	__le64 Offset;
1140 	__u64  PersistentFileId; /* opaque endianness */
1141 	__u64  VolatileFileId; /* opaque endianness */
1142 	__le32 MinimumCount;
1143 	__le32 Channel; /* MBZ except for SMB3 or later */
1144 	__le32 RemainingBytes;
1145 	__le16 ReadChannelInfoOffset;
1146 	__le16 ReadChannelInfoLength;
1147 	__u8   Buffer[1];
1148 } __packed;
1149 
1150 struct smb2_read_rsp {
1151 	struct smb2_sync_hdr sync_hdr;
1152 	__le16 StructureSize; /* Must be 17 */
1153 	__u8   DataOffset;
1154 	__u8   Reserved;
1155 	__le32 DataLength;
1156 	__le32 DataRemaining;
1157 	__u32  Reserved2;
1158 	__u8   Buffer[1];
1159 } __packed;
1160 
1161 /* For write request Flags field below the following flags are defined: */
1162 #define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
1163 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */
1164 
1165 struct smb2_write_req {
1166 	struct smb2_sync_hdr sync_hdr;
1167 	__le16 StructureSize; /* Must be 49 */
1168 	__le16 DataOffset; /* offset from start of SMB2 header to write data */
1169 	__le32 Length;
1170 	__le64 Offset;
1171 	__u64  PersistentFileId; /* opaque endianness */
1172 	__u64  VolatileFileId; /* opaque endianness */
1173 	__le32 Channel; /* Reserved MBZ */
1174 	__le32 RemainingBytes;
1175 	__le16 WriteChannelInfoOffset;
1176 	__le16 WriteChannelInfoLength;
1177 	__le32 Flags;
1178 	__u8   Buffer[1];
1179 } __packed;
1180 
1181 struct smb2_write_rsp {
1182 	struct smb2_sync_hdr sync_hdr;
1183 	__le16 StructureSize; /* Must be 17 */
1184 	__u8   DataOffset;
1185 	__u8   Reserved;
1186 	__le32 DataLength;
1187 	__le32 DataRemaining;
1188 	__u32  Reserved2;
1189 	__u8   Buffer[1];
1190 } __packed;
1191 
1192 /* notify flags */
1193 #define SMB2_WATCH_TREE			0x0001
1194 
1195 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
1196 #define FILE_NOTIFY_CHANGE_FILE_NAME		0x00000001
1197 #define FILE_NOTIFY_CHANGE_DIR_NAME		0x00000002
1198 #define FILE_NOTIFY_CHANGE_ATTRIBUTES		0x00000004
1199 #define FILE_NOTIFY_CHANGE_SIZE			0x00000008
1200 #define FILE_NOTIFY_CHANGE_LAST_WRITE		0x00000010
1201 #define FILE_NOTIFY_CHANGE_LAST_ACCESS		0x00000020
1202 #define FILE_NOTIFY_CHANGE_CREATION		0x00000040
1203 #define FILE_NOTIFY_CHANGE_EA			0x00000080
1204 #define FILE_NOTIFY_CHANGE_SECURITY		0x00000100
1205 #define FILE_NOTIFY_CHANGE_STREAM_NAME		0x00000200
1206 #define FILE_NOTIFY_CHANGE_STREAM_SIZE		0x00000400
1207 #define FILE_NOTIFY_CHANGE_STREAM_WRITE		0x00000800
1208 
1209 struct smb2_change_notify_req {
1210 	struct smb2_sync_hdr sync_hdr;
1211 	__le16	StructureSize;
1212 	__le16	Flags;
1213 	__le32	OutputBufferLength;
1214 	__u64	PersistentFileId; /* opaque endianness */
1215 	__u64	VolatileFileId; /* opaque endianness */
1216 	__le32	CompletionFilter;
1217 	__u32	Reserved;
1218 } __packed;
1219 
1220 struct smb2_change_notify_rsp {
1221 	struct smb2_sync_hdr sync_hdr;
1222 	__le16	StructureSize;  /* Must be 9 */
1223 	__le16	OutputBufferOffset;
1224 	__le32	OutputBufferLength;
1225 	__u8	Buffer[1]; /* array of file notify structs */
1226 } __packed;
1227 
1228 #define SMB2_LOCKFLAG_SHARED_LOCK	0x0001
1229 #define SMB2_LOCKFLAG_EXCLUSIVE_LOCK	0x0002
1230 #define SMB2_LOCKFLAG_UNLOCK		0x0004
1231 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
1232 
1233 struct smb2_lock_element {
1234 	__le64 Offset;
1235 	__le64 Length;
1236 	__le32 Flags;
1237 	__le32 Reserved;
1238 } __packed;
1239 
1240 struct smb2_lock_req {
1241 	struct smb2_sync_hdr sync_hdr;
1242 	__le16 StructureSize; /* Must be 48 */
1243 	__le16 LockCount;
1244 	__le32 Reserved;
1245 	__u64  PersistentFileId; /* opaque endianness */
1246 	__u64  VolatileFileId; /* opaque endianness */
1247 	/* Followed by at least one */
1248 	struct smb2_lock_element locks[1];
1249 } __packed;
1250 
1251 struct smb2_lock_rsp {
1252 	struct smb2_sync_hdr sync_hdr;
1253 	__le16 StructureSize; /* Must be 4 */
1254 	__le16 Reserved;
1255 } __packed;
1256 
1257 struct smb2_echo_req {
1258 	struct smb2_sync_hdr sync_hdr;
1259 	__le16 StructureSize;	/* Must be 4 */
1260 	__u16  Reserved;
1261 } __packed;
1262 
1263 struct smb2_echo_rsp {
1264 	struct smb2_sync_hdr sync_hdr;
1265 	__le16 StructureSize;	/* Must be 4 */
1266 	__u16  Reserved;
1267 } __packed;
1268 
1269 /* search (query_directory) Flags field */
1270 #define SMB2_RESTART_SCANS		0x01
1271 #define SMB2_RETURN_SINGLE_ENTRY	0x02
1272 #define SMB2_INDEX_SPECIFIED		0x04
1273 #define SMB2_REOPEN			0x10
1274 
1275 struct smb2_query_directory_req {
1276 	struct smb2_sync_hdr sync_hdr;
1277 	__le16 StructureSize; /* Must be 33 */
1278 	__u8   FileInformationClass;
1279 	__u8   Flags;
1280 	__le32 FileIndex;
1281 	__u64  PersistentFileId; /* opaque endianness */
1282 	__u64  VolatileFileId; /* opaque endianness */
1283 	__le16 FileNameOffset;
1284 	__le16 FileNameLength;
1285 	__le32 OutputBufferLength;
1286 	__u8   Buffer[1];
1287 } __packed;
1288 
1289 struct smb2_query_directory_rsp {
1290 	struct smb2_sync_hdr sync_hdr;
1291 	__le16 StructureSize; /* Must be 9 */
1292 	__le16 OutputBufferOffset;
1293 	__le32 OutputBufferLength;
1294 	__u8   Buffer[1];
1295 } __packed;
1296 
1297 /* Possible InfoType values */
1298 #define SMB2_O_INFO_FILE	0x01
1299 #define SMB2_O_INFO_FILESYSTEM	0x02
1300 #define SMB2_O_INFO_SECURITY	0x03
1301 #define SMB2_O_INFO_QUOTA	0x04
1302 
1303 /* Security info type additionalinfo flags. See MS-SMB2 (2.2.37) or MS-DTYP */
1304 #define OWNER_SECINFO   0x00000001
1305 #define GROUP_SECINFO   0x00000002
1306 #define DACL_SECINFO   0x00000004
1307 #define SACL_SECINFO   0x00000008
1308 #define LABEL_SECINFO   0x00000010
1309 #define ATTRIBUTE_SECINFO   0x00000020
1310 #define SCOPE_SECINFO   0x00000040
1311 #define BACKUP_SECINFO   0x00010000
1312 #define UNPROTECTED_SACL_SECINFO   0x10000000
1313 #define UNPROTECTED_DACL_SECINFO   0x20000000
1314 #define PROTECTED_SACL_SECINFO   0x40000000
1315 #define PROTECTED_DACL_SECINFO   0x80000000
1316 
1317 /* Flags used for FileFullEAinfo */
1318 #define SL_RESTART_SCAN		0x00000001
1319 #define SL_RETURN_SINGLE_ENTRY	0x00000002
1320 #define SL_INDEX_SPECIFIED	0x00000004
1321 
1322 struct smb2_query_info_req {
1323 	struct smb2_sync_hdr sync_hdr;
1324 	__le16 StructureSize; /* Must be 41 */
1325 	__u8   InfoType;
1326 	__u8   FileInfoClass;
1327 	__le32 OutputBufferLength;
1328 	__le16 InputBufferOffset;
1329 	__u16  Reserved;
1330 	__le32 InputBufferLength;
1331 	__le32 AdditionalInformation;
1332 	__le32 Flags;
1333 	__u64  PersistentFileId; /* opaque endianness */
1334 	__u64  VolatileFileId; /* opaque endianness */
1335 	__u8   Buffer[1];
1336 } __packed;
1337 
1338 struct smb2_query_info_rsp {
1339 	struct smb2_sync_hdr sync_hdr;
1340 	__le16 StructureSize; /* Must be 9 */
1341 	__le16 OutputBufferOffset;
1342 	__le32 OutputBufferLength;
1343 	__u8   Buffer[1];
1344 } __packed;
1345 
1346 /*
1347  * Maximum number of iovs we need for a set-info request.
1348  * The largest one is rename/hardlink
1349  * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
1350  * [1] : path
1351  * [2] : compound padding
1352  */
1353 #define SMB2_SET_INFO_IOV_SIZE 3
1354 
1355 struct smb2_set_info_req {
1356 	struct smb2_sync_hdr sync_hdr;
1357 	__le16 StructureSize; /* Must be 33 */
1358 	__u8   InfoType;
1359 	__u8   FileInfoClass;
1360 	__le32 BufferLength;
1361 	__le16 BufferOffset;
1362 	__u16  Reserved;
1363 	__le32 AdditionalInformation;
1364 	__u64  PersistentFileId; /* opaque endianness */
1365 	__u64  VolatileFileId; /* opaque endianness */
1366 	__u8   Buffer[1];
1367 } __packed;
1368 
1369 struct smb2_set_info_rsp {
1370 	struct smb2_sync_hdr sync_hdr;
1371 	__le16 StructureSize; /* Must be 2 */
1372 } __packed;
1373 
1374 struct smb2_oplock_break {
1375 	struct smb2_sync_hdr sync_hdr;
1376 	__le16 StructureSize; /* Must be 24 */
1377 	__u8   OplockLevel;
1378 	__u8   Reserved;
1379 	__le32 Reserved2;
1380 	__u64  PersistentFid;
1381 	__u64  VolatileFid;
1382 } __packed;
1383 
1384 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1385 
1386 struct smb2_lease_break {
1387 	struct smb2_sync_hdr sync_hdr;
1388 	__le16 StructureSize; /* Must be 44 */
1389 	__le16 Reserved;
1390 	__le32 Flags;
1391 	__u8   LeaseKey[16];
1392 	__le32 CurrentLeaseState;
1393 	__le32 NewLeaseState;
1394 	__le32 BreakReason;
1395 	__le32 AccessMaskHint;
1396 	__le32 ShareMaskHint;
1397 } __packed;
1398 
1399 struct smb2_lease_ack {
1400 	struct smb2_sync_hdr sync_hdr;
1401 	__le16 StructureSize; /* Must be 36 */
1402 	__le16 Reserved;
1403 	__le32 Flags;
1404 	__u8   LeaseKey[16];
1405 	__le32 LeaseState;
1406 	__le64 LeaseDuration;
1407 } __packed;
1408 
1409 /*
1410  *	PDU infolevel structure definitions
1411  *	BB consider moving to a different header
1412  */
1413 
1414 /* File System Information Classes */
1415 #define FS_VOLUME_INFORMATION		1 /* Query */
1416 #define FS_LABEL_INFORMATION		2 /* Local only */
1417 #define FS_SIZE_INFORMATION		3 /* Query */
1418 #define FS_DEVICE_INFORMATION		4 /* Query */
1419 #define FS_ATTRIBUTE_INFORMATION	5 /* Query */
1420 #define FS_CONTROL_INFORMATION		6 /* Query, Set */
1421 #define FS_FULL_SIZE_INFORMATION	7 /* Query */
1422 #define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
1423 #define FS_DRIVER_PATH_INFORMATION	9 /* Local only */
1424 #define FS_VOLUME_FLAGS_INFORMATION	10 /* Local only */
1425 #define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
1426 #define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */
1427 
1428 struct smb2_fs_full_size_info {
1429 	__le64 TotalAllocationUnits;
1430 	__le64 CallerAvailableAllocationUnits;
1431 	__le64 ActualAvailableAllocationUnits;
1432 	__le32 SectorsPerAllocationUnit;
1433 	__le32 BytesPerSector;
1434 } __packed;
1435 
1436 #define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
1437 #define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1438 #define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
1439 #define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
1440 
1441 /* sector size info struct */
1442 struct smb3_fs_ss_info {
1443 	__le32 LogicalBytesPerSector;
1444 	__le32 PhysicalBytesPerSectorForAtomicity;
1445 	__le32 PhysicalBytesPerSectorForPerf;
1446 	__le32 FileSystemEffectivePhysicalBytesPerSectorForAtomicity;
1447 	__le32 Flags;
1448 	__le32 ByteOffsetForSectorAlignment;
1449 	__le32 ByteOffsetForPartitionAlignment;
1450 } __packed;
1451 
1452 /* volume info struct - see MS-FSCC 2.5.9 */
1453 #define MAX_VOL_LABEL_LEN	32
1454 struct smb3_fs_vol_info {
1455 	__le64	VolumeCreationTime;
1456 	__u32	VolumeSerialNumber;
1457 	__le32	VolumeLabelLength; /* includes trailing null */
1458 	__u8	SupportsObjects; /* True if eg like NTFS, supports objects */
1459 	__u8	Reserved;
1460 	__u8	VolumeLabel[0]; /* variable len */
1461 } __packed;
1462 
1463 /* partial list of QUERY INFO levels */
1464 #define FILE_DIRECTORY_INFORMATION	1
1465 #define FILE_FULL_DIRECTORY_INFORMATION 2
1466 #define FILE_BOTH_DIRECTORY_INFORMATION 3
1467 #define FILE_BASIC_INFORMATION		4
1468 #define FILE_STANDARD_INFORMATION	5
1469 #define FILE_INTERNAL_INFORMATION	6
1470 #define FILE_EA_INFORMATION	        7
1471 #define FILE_ACCESS_INFORMATION		8
1472 #define FILE_NAME_INFORMATION		9
1473 #define FILE_RENAME_INFORMATION		10
1474 #define FILE_LINK_INFORMATION		11
1475 #define FILE_NAMES_INFORMATION		12
1476 #define FILE_DISPOSITION_INFORMATION	13
1477 #define FILE_POSITION_INFORMATION	14
1478 #define FILE_FULL_EA_INFORMATION	15
1479 #define FILE_MODE_INFORMATION		16
1480 #define FILE_ALIGNMENT_INFORMATION	17
1481 #define FILE_ALL_INFORMATION		18
1482 #define FILE_ALLOCATION_INFORMATION	19
1483 #define FILE_END_OF_FILE_INFORMATION	20
1484 #define FILE_ALTERNATE_NAME_INFORMATION 21
1485 #define FILE_STREAM_INFORMATION		22
1486 #define FILE_PIPE_INFORMATION		23
1487 #define FILE_PIPE_LOCAL_INFORMATION	24
1488 #define FILE_PIPE_REMOTE_INFORMATION	25
1489 #define FILE_MAILSLOT_QUERY_INFORMATION 26
1490 #define FILE_MAILSLOT_SET_INFORMATION	27
1491 #define FILE_COMPRESSION_INFORMATION	28
1492 #define FILE_OBJECT_ID_INFORMATION	29
1493 /* Number 30 not defined in documents */
1494 #define FILE_MOVE_CLUSTER_INFORMATION	31
1495 #define FILE_QUOTA_INFORMATION		32
1496 #define FILE_REPARSE_POINT_INFORMATION	33
1497 #define FILE_NETWORK_OPEN_INFORMATION	34
1498 #define FILE_ATTRIBUTE_TAG_INFORMATION	35
1499 #define FILE_TRACKING_INFORMATION	36
1500 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
1501 #define FILEID_FULL_DIRECTORY_INFORMATION 38
1502 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
1503 #define FILE_SHORT_NAME_INFORMATION	40
1504 #define FILE_SFIO_RESERVE_INFORMATION	44
1505 #define FILE_SFIO_VOLUME_INFORMATION	45
1506 #define FILE_HARD_LINK_INFORMATION	46
1507 #define FILE_NORMALIZED_NAME_INFORMATION 48
1508 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1509 #define FILE_STANDARD_LINK_INFORMATION	54
1510 
1511 struct smb2_file_internal_info {
1512 	__le64 IndexNumber;
1513 } __packed; /* level 6 Query */
1514 
1515 struct smb2_file_rename_info { /* encoding of request for level 10 */
1516 	__u8   ReplaceIfExists; /* 1 = replace existing target with new */
1517 				/* 0 = fail if target already exists */
1518 	__u8   Reserved[7];
1519 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1520 	__le32 FileNameLength;
1521 	char   FileName[0];     /* New name to be assigned */
1522 } __packed; /* level 10 Set */
1523 
1524 struct smb2_file_link_info { /* encoding of request for level 11 */
1525 	__u8   ReplaceIfExists; /* 1 = replace existing link with new */
1526 				/* 0 = fail if link already exists */
1527 	__u8   Reserved[7];
1528 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1529 	__le32 FileNameLength;
1530 	char   FileName[0];     /* Name to be assigned to new link */
1531 } __packed; /* level 11 Set */
1532 
1533 struct smb2_file_full_ea_info { /* encoding of response for level 15 */
1534 	__le32 next_entry_offset;
1535 	__u8   flags;
1536 	__u8   ea_name_length;
1537 	__le16 ea_value_length;
1538 	char   ea_data[0]; /* \0 terminated name plus value */
1539 } __packed; /* level 15 Set */
1540 
1541 /*
1542  * This level 18, although with struct with same name is different from cifs
1543  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1544  * CurrentByteOffset.
1545  */
1546 struct smb2_file_all_info { /* data block encoding of response to level 18 */
1547 	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
1548 	__le64 LastAccessTime;
1549 	__le64 LastWriteTime;
1550 	__le64 ChangeTime;
1551 	__le32 Attributes;
1552 	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
1553 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1554 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
1555 	__le32 NumberOfLinks;	/* hard links */
1556 	__u8   DeletePending;
1557 	__u8   Directory;
1558 	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
1559 	__le64 IndexNumber;
1560 	__le32 EASize;
1561 	__le32 AccessFlags;
1562 	__le64 CurrentByteOffset;
1563 	__le32 Mode;
1564 	__le32 AlignmentRequirement;
1565 	__le32 FileNameLength;
1566 	char   FileName[1];
1567 } __packed; /* level 18 Query */
1568 
1569 struct smb2_file_eof_info { /* encoding of request for level 10 */
1570 	__le64 EndOfFile; /* new end of file value */
1571 } __packed; /* level 20 Set */
1572 
1573 extern char smb2_padding[7];
1574 
1575 #endif				/* _SMB2PDU_H */
1576