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 #include <cifsacl.h>
29 
30 /*
31  * Note that, due to trying to use names similar to the protocol specifications,
32  * there are many mixed case field names in the structures below.  Although
33  * this does not match typical Linux kernel style, it is necessary to be
34  * able to match against the protocol specfication.
35  *
36  * SMB2 commands
37  * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
38  * (ie no useful data other than the SMB error code itself) and are marked such.
39  * Knowing this helps avoid response buffer allocations and copy in some cases.
40  */
41 
42 /* List of commands in host endian */
43 #define SMB2_NEGOTIATE_HE	0x0000
44 #define SMB2_SESSION_SETUP_HE	0x0001
45 #define SMB2_LOGOFF_HE		0x0002 /* trivial request/resp */
46 #define SMB2_TREE_CONNECT_HE	0x0003
47 #define SMB2_TREE_DISCONNECT_HE	0x0004 /* trivial req/resp */
48 #define SMB2_CREATE_HE		0x0005
49 #define SMB2_CLOSE_HE		0x0006
50 #define SMB2_FLUSH_HE		0x0007 /* trivial resp */
51 #define SMB2_READ_HE		0x0008
52 #define SMB2_WRITE_HE		0x0009
53 #define SMB2_LOCK_HE		0x000A
54 #define SMB2_IOCTL_HE		0x000B
55 #define SMB2_CANCEL_HE		0x000C
56 #define SMB2_ECHO_HE		0x000D
57 #define SMB2_QUERY_DIRECTORY_HE	0x000E
58 #define SMB2_CHANGE_NOTIFY_HE	0x000F
59 #define SMB2_QUERY_INFO_HE	0x0010
60 #define SMB2_SET_INFO_HE	0x0011
61 #define SMB2_OPLOCK_BREAK_HE	0x0012
62 
63 /* The same list in little endian */
64 #define SMB2_NEGOTIATE		cpu_to_le16(SMB2_NEGOTIATE_HE)
65 #define SMB2_SESSION_SETUP	cpu_to_le16(SMB2_SESSION_SETUP_HE)
66 #define SMB2_LOGOFF		cpu_to_le16(SMB2_LOGOFF_HE)
67 #define SMB2_TREE_CONNECT	cpu_to_le16(SMB2_TREE_CONNECT_HE)
68 #define SMB2_TREE_DISCONNECT	cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
69 #define SMB2_CREATE		cpu_to_le16(SMB2_CREATE_HE)
70 #define SMB2_CLOSE		cpu_to_le16(SMB2_CLOSE_HE)
71 #define SMB2_FLUSH		cpu_to_le16(SMB2_FLUSH_HE)
72 #define SMB2_READ		cpu_to_le16(SMB2_READ_HE)
73 #define SMB2_WRITE		cpu_to_le16(SMB2_WRITE_HE)
74 #define SMB2_LOCK		cpu_to_le16(SMB2_LOCK_HE)
75 #define SMB2_IOCTL		cpu_to_le16(SMB2_IOCTL_HE)
76 #define SMB2_CANCEL		cpu_to_le16(SMB2_CANCEL_HE)
77 #define SMB2_ECHO		cpu_to_le16(SMB2_ECHO_HE)
78 #define SMB2_QUERY_DIRECTORY	cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
79 #define SMB2_CHANGE_NOTIFY	cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
80 #define SMB2_QUERY_INFO		cpu_to_le16(SMB2_QUERY_INFO_HE)
81 #define SMB2_SET_INFO		cpu_to_le16(SMB2_SET_INFO_HE)
82 #define SMB2_OPLOCK_BREAK	cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
83 
84 #define SMB2_INTERNAL_CMD	cpu_to_le16(0xFFFF)
85 
86 #define NUMBER_OF_SMB2_COMMANDS	0x0013
87 
88 /* 52 transform hdr + 64 hdr + 88 create rsp */
89 #define SMB2_TRANSFORM_HEADER_SIZE 52
90 #define MAX_SMB2_HDR_SIZE 204
91 
92 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
93 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
94 #define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
95 
96 /*
97  * SMB2 Header Definition
98  *
99  * "MBZ" :  Must be Zero
100  * "BB"  :  BugBug, Something to check/review/analyze later
101  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
102  *
103  */
104 
105 #define SMB2_HEADER_STRUCTURE_SIZE cpu_to_le16(64)
106 
107 struct smb2_sync_hdr {
108 	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
109 	__le16 StructureSize;	/* 64 */
110 	__le16 CreditCharge;	/* MBZ */
111 	__le32 Status;		/* Error from server */
112 	__le16 Command;
113 	__le16 CreditRequest;  /* CreditResponse */
114 	__le32 Flags;
115 	__le32 NextCommand;
116 	__le64 MessageId;
117 	__le32 ProcessId;
118 	__u32  TreeId;		/* opaque - so do not make little endian */
119 	__u64  SessionId;	/* opaque - so do not make little endian */
120 	__u8   Signature[16];
121 } __packed;
122 
123 /* The total header size for SMB2 read and write */
124 #define SMB2_READWRITE_PDU_HEADER_SIZE (48 + sizeof(struct smb2_sync_hdr))
125 
126 struct smb2_sync_pdu {
127 	struct smb2_sync_hdr sync_hdr;
128 	__le16 StructureSize2; /* size of wct area (varies, request specific) */
129 } __packed;
130 
131 #define SMB3_AES_CCM_NONCE 11
132 #define SMB3_AES_GCM_NONCE 12
133 
134 /* Transform flags (for 3.0 dialect this flag indicates CCM */
135 #define TRANSFORM_FLAG_ENCRYPTED	0x0001
136 struct smb2_transform_hdr {
137 	__le32 ProtocolId;	/* 0xFD 'S' 'M' 'B' */
138 	__u8   Signature[16];
139 	__u8   Nonce[16];
140 	__le32 OriginalMessageSize;
141 	__u16  Reserved1;
142 	__le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
143 	__u64  SessionId;
144 } __packed;
145 
146 /* See MS-SMB2 2.2.42 */
147 struct smb2_compression_transform_hdr {
148 	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */
149 	__le32 OriginalCompressedSegmentSize;
150 	__le16 CompressionAlgorithm;
151 	__le16 Flags;
152 	__le16 Length; /* if chained it is length, else offset */
153 } __packed;
154 
155 /* See MS-SMB2 2.2.42.1 */
156 #define SMB2_COMPRESSION_FLAG_NONE	0x0000
157 #define SMB2_COMPRESSION_FLAG_CHAINED	0x0001
158 
159 struct compression_payload_header {
160 	__le16	CompressionAlgorithm;
161 	__le16	Flags;
162 	__le32	Length; /* length of compressed playload including field below if present */
163 	/* __le32 OriginalPayloadSize; */ /* optional */
164 } __packed;
165 
166 /* See MS-SMB2 2.2.42.2 */
167 struct compression_pattern_payload_v1 {
168 	__le16	Pattern;
169 	__le16	Reserved1;
170 	__le16	Reserved2;
171 	__le32	Repetitions;
172 } __packed;
173 
174 /* See MS-SMB2 2.2.43 */
175 struct smb2_rdma_transform {
176 	__le16 RdmaDescriptorOffset;
177 	__le16 RdmaDescriptorLength;
178 	__le32 Channel; /* for values see channel description in smb2 read above */
179 	__le16 TransformCount;
180 	__le16 Reserved1;
181 	__le32 Reserved2;
182 } __packed;
183 
184 struct smb2_rdma_encryption_transform {
185 	__le16	TransformType;
186 	__le16	SignatureLength;
187 	__le16	NonceLength;
188 	__u16	Reserved;
189 	__u8	Signature[]; /* variable length */
190 	/* u8 Nonce[] */
191 	/* followed by padding */
192 } __packed;
193 
194 /*
195  *	SMB2 flag definitions
196  */
197 #define SMB2_FLAGS_SERVER_TO_REDIR	cpu_to_le32(0x00000001)
198 #define SMB2_FLAGS_ASYNC_COMMAND	cpu_to_le32(0x00000002)
199 #define SMB2_FLAGS_RELATED_OPERATIONS	cpu_to_le32(0x00000004)
200 #define SMB2_FLAGS_SIGNED		cpu_to_le32(0x00000008)
201 #define SMB2_FLAGS_PRIORITY_MASK	cpu_to_le32(0x00000070) /* SMB3.1.1 */
202 #define SMB2_FLAGS_DFS_OPERATIONS	cpu_to_le32(0x10000000)
203 #define SMB2_FLAGS_REPLAY_OPERATION	cpu_to_le32(0x20000000) /* SMB3 & up */
204 
205 /*
206  *	Definitions for SMB2 Protocol Data Units (network frames)
207  *
208  *  See MS-SMB2.PDF specification for protocol details.
209  *  The Naming convention is the lower case version of the SMB2
210  *  command code name for the struct. Note that structures must be packed.
211  *
212  */
213 
214 #define COMPOUND_FID 0xFFFFFFFFFFFFFFFFULL
215 
216 #define SMB2_ERROR_STRUCTURE_SIZE2 cpu_to_le16(9)
217 
218 struct smb2_err_rsp {
219 	struct smb2_sync_hdr sync_hdr;
220 	__le16 StructureSize;
221 	__le16 Reserved; /* MBZ */
222 	__le32 ByteCount;  /* even if zero, at least one byte follows */
223 	__u8   ErrorData[1];  /* variable length */
224 } __packed;
225 
226 #define SYMLINK_ERROR_TAG 0x4c4d5953
227 
228 struct smb2_symlink_err_rsp {
229 	__le32 SymLinkLength;
230 	__le32 SymLinkErrorTag;
231 	__le32 ReparseTag;
232 	__le16 ReparseDataLength;
233 	__le16 UnparsedPathLength;
234 	__le16 SubstituteNameOffset;
235 	__le16 SubstituteNameLength;
236 	__le16 PrintNameOffset;
237 	__le16 PrintNameLength;
238 	__le32 Flags;
239 	__u8  PathBuffer[];
240 } __packed;
241 
242 /* SMB 3.1.1 and later dialects. See MS-SMB2 section 2.2.2.1 */
243 struct smb2_error_context_rsp {
244 	__le32 ErrorDataLength;
245 	__le32 ErrorId;
246 	__u8  ErrorContextData; /* ErrorDataLength long array */
247 } __packed;
248 
249 /* ErrorId values */
250 #define SMB2_ERROR_ID_DEFAULT		0x00000000
251 #define SMB2_ERROR_ID_SHARE_REDIRECT	cpu_to_le32(0x72645253)	/* "rdRS" */
252 
253 /* Defines for Type field below (see MS-SMB2 2.2.2.2.2.1) */
254 #define MOVE_DST_IPADDR_V4	cpu_to_le32(0x00000001)
255 #define MOVE_DST_IPADDR_V6	cpu_to_le32(0x00000002)
256 
257 struct move_dst_ipaddr {
258 	__le32 Type;
259 	__u32  Reserved;
260 	__u8   address[16]; /* IPv4 followed by 12 bytes rsvd or IPv6 address */
261 } __packed;
262 
263 struct share_redirect_error_context_rsp {
264 	__le32 StructureSize;
265 	__le32 NotificationType;
266 	__le32 ResourceNameOffset;
267 	__le32 ResourceNameLength;
268 	__le16 Flags;
269 	__le16 TargetType;
270 	__le32 IPAddrCount;
271 	struct move_dst_ipaddr IpAddrMoveList[];
272 	/* __u8 ResourceName[] */ /* Name of share as counted Unicode string */
273 } __packed;
274 
275 #define SMB2_CLIENT_GUID_SIZE 16
276 
277 struct smb2_negotiate_req {
278 	struct smb2_sync_hdr sync_hdr;
279 	__le16 StructureSize; /* Must be 36 */
280 	__le16 DialectCount;
281 	__le16 SecurityMode;
282 	__le16 Reserved;	/* MBZ */
283 	__le32 Capabilities;
284 	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
285 	/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
286 	__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
287 	__le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
288 	__le16 Reserved2;
289 	__le16 Dialects[1]; /* One dialect (vers=) at a time for now */
290 } __packed;
291 
292 /* Dialects */
293 #define SMB10_PROT_ID 0x0000 /* local only, not sent on wire w/CIFS negprot */
294 #define SMB20_PROT_ID 0x0202
295 #define SMB21_PROT_ID 0x0210
296 #define SMB30_PROT_ID 0x0300
297 #define SMB302_PROT_ID 0x0302
298 #define SMB311_PROT_ID 0x0311
299 #define BAD_PROT_ID   0xFFFF
300 
301 /* SecurityMode flags */
302 #define	SMB2_NEGOTIATE_SIGNING_ENABLED	0x0001
303 #define SMB2_NEGOTIATE_SIGNING_REQUIRED	0x0002
304 #define SMB2_SEC_MODE_FLAGS_ALL		0x0003
305 
306 /* Capabilities flags */
307 #define SMB2_GLOBAL_CAP_DFS		0x00000001
308 #define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
309 #define SMB2_GLOBAL_CAP_LARGE_MTU	0X00000004 /* Resp only New to SMB2.1 */
310 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
311 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
312 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
313 #define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
314 /* Internal types */
315 #define SMB2_NT_FIND			0x00100000
316 #define SMB2_LARGE_FILES		0x00200000
317 
318 
319 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
320 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES	cpu_to_le16(1)
321 #define SMB2_ENCRYPTION_CAPABILITIES		cpu_to_le16(2)
322 #define SMB2_COMPRESSION_CAPABILITIES		cpu_to_le16(3)
323 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID	cpu_to_le16(5)
324 #define SMB2_TRANSPORT_CAPABILITIES		cpu_to_le16(6)
325 #define SMB2_RDMA_TRANSFORM_CAPABILITIES	cpu_to_le16(7)
326 #define SMB2_SIGNING_CAPABILITIES		cpu_to_le16(8)
327 #define SMB2_POSIX_EXTENSIONS_AVAILABLE		cpu_to_le16(0x100)
328 
329 struct smb2_neg_context {
330 	__le16	ContextType;
331 	__le16	DataLength;
332 	__le32	Reserved;
333 	/* Followed by array of data */
334 } __packed;
335 
336 #define SMB311_SALT_SIZE			32
337 /* Hash Algorithm Types */
338 #define SMB2_PREAUTH_INTEGRITY_SHA512	cpu_to_le16(0x0001)
339 #define SMB2_PREAUTH_HASH_SIZE 64
340 
341 #define MIN_PREAUTH_CTXT_DATA_LEN	(SMB311_SALT_SIZE + 6)
342 struct smb2_preauth_neg_context {
343 	__le16	ContextType; /* 1 */
344 	__le16	DataLength;
345 	__le32	Reserved;
346 	__le16	HashAlgorithmCount; /* 1 */
347 	__le16	SaltLength;
348 	__le16	HashAlgorithms; /* HashAlgorithms[0] since only one defined */
349 	__u8	Salt[SMB311_SALT_SIZE];
350 } __packed;
351 
352 /* Encryption Algorithms Ciphers */
353 #define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
354 #define SMB2_ENCRYPTION_AES128_GCM	cpu_to_le16(0x0002)
355 /* we currently do not request AES256_CCM since presumably GCM faster */
356 #define SMB2_ENCRYPTION_AES256_CCM      cpu_to_le16(0x0003)
357 #define SMB2_ENCRYPTION_AES256_GCM      cpu_to_le16(0x0004)
358 
359 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
360 #define MIN_ENCRYPT_CTXT_DATA_LEN	4
361 struct smb2_encryption_neg_context {
362 	__le16	ContextType; /* 2 */
363 	__le16	DataLength;
364 	__le32	Reserved;
365 	/* CipherCount usally 2, but can be 3 when AES256-GCM enabled */
366 	__le16	CipherCount; /* AES128-GCM and AES128-CCM by default */
367 	__le16	Ciphers[3];
368 } __packed;
369 
370 /* See MS-SMB2 2.2.3.1.3 */
371 #define SMB3_COMPRESS_NONE	cpu_to_le16(0x0000)
372 #define SMB3_COMPRESS_LZNT1	cpu_to_le16(0x0001)
373 #define SMB3_COMPRESS_LZ77	cpu_to_le16(0x0002)
374 #define SMB3_COMPRESS_LZ77_HUFF	cpu_to_le16(0x0003)
375 /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
376 #define SMB3_COMPRESS_PATTERN	cpu_to_le16(0x0004) /* Pattern_V1 */
377 
378 /* Compression Flags */
379 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE		cpu_to_le32(0x00000000)
380 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED	cpu_to_le32(0x00000001)
381 
382 struct smb2_compression_capabilities_context {
383 	__le16	ContextType; /* 3 */
384 	__le16  DataLength;
385 	__u32	Reserved;
386 	__le16	CompressionAlgorithmCount;
387 	__u16	Padding;
388 	__u32	Flags;
389 	__le16	CompressionAlgorithms[3];
390 } __packed;
391 
392 /*
393  * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
394  * Its struct simply contains NetName, an array of Unicode characters
395  */
396 struct smb2_netname_neg_context {
397 	__le16	ContextType; /* 5 */
398 	__le16	DataLength;
399 	__le32	Reserved;
400 	__le16	NetName[]; /* hostname of target converted to UCS-2 */
401 } __packed;
402 
403 /*
404  * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
405  * and 2.2.4.1.5
406  */
407 
408 /* RDMA Transform IDs */
409 #define SMB2_RDMA_TRANSFORM_NONE	0x0000
410 #define SMB2_RDMA_TRANSFORM_ENCRYPTION	0x0001
411 
412 struct smb2_rdma_transform_capabilities_context {
413 	__le16	ContextType; /* 7 */
414 	__le16  DataLength;
415 	__u32	Reserved;
416 	__le16	TransformCount;
417 	__u16	Reserved1;
418 	__u32	Reserved2;
419 	__le16	RDMATransformIds[1];
420 } __packed;
421 
422 /* Signing algorithms */
423 #define SIGNING_ALG_HMAC_SHA256	0
424 #define SIGNING_ALG_AES_CMAC	1
425 #define SIGNING_ALG_AES_GMAC	2
426 
427 struct smb2_signing_capabilities {
428 	__le16	ContextType; /* 8 */
429 	__le16	DataLength;
430 	__u32	Reserved;
431 	__le16	SigningAlgorithmCount;
432 	__le16	SigningAlgorithms[];
433 } __packed;
434 
435 #define POSIX_CTXT_DATA_LEN	16
436 struct smb2_posix_neg_context {
437 	__le16	ContextType; /* 0x100 */
438 	__le16	DataLength;
439 	__le32	Reserved;
440 	__u8	Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
441 } __packed;
442 
443 struct smb2_negotiate_rsp {
444 	struct smb2_sync_hdr sync_hdr;
445 	__le16 StructureSize;	/* Must be 65 */
446 	__le16 SecurityMode;
447 	__le16 DialectRevision;
448 	__le16 NegotiateContextCount;	/* Prior to SMB3.1.1 was Reserved & MBZ */
449 	__u8   ServerGUID[16];
450 	__le32 Capabilities;
451 	__le32 MaxTransactSize;
452 	__le32 MaxReadSize;
453 	__le32 MaxWriteSize;
454 	__le64 SystemTime;	/* MBZ */
455 	__le64 ServerStartTime;
456 	__le16 SecurityBufferOffset;
457 	__le16 SecurityBufferLength;
458 	__le32 NegotiateContextOffset;	/* Pre:SMB3.1.1 was reserved/ignored */
459 	__u8   Buffer[1];	/* variable length GSS security buffer */
460 } __packed;
461 
462 /* Flags */
463 #define SMB2_SESSION_REQ_FLAG_BINDING		0x01
464 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA	0x04
465 
466 struct smb2_sess_setup_req {
467 	struct smb2_sync_hdr sync_hdr;
468 	__le16 StructureSize; /* Must be 25 */
469 	__u8   Flags;
470 	__u8   SecurityMode;
471 	__le32 Capabilities;
472 	__le32 Channel;
473 	__le16 SecurityBufferOffset;
474 	__le16 SecurityBufferLength;
475 	__u64 PreviousSessionId;
476 	__u8   Buffer[1];	/* variable length GSS security buffer */
477 } __packed;
478 
479 /* Currently defined SessionFlags */
480 #define SMB2_SESSION_FLAG_IS_GUEST	0x0001
481 #define SMB2_SESSION_FLAG_IS_NULL	0x0002
482 #define SMB2_SESSION_FLAG_ENCRYPT_DATA	0x0004
483 struct smb2_sess_setup_rsp {
484 	struct smb2_sync_hdr sync_hdr;
485 	__le16 StructureSize; /* Must be 9 */
486 	__le16 SessionFlags;
487 	__le16 SecurityBufferOffset;
488 	__le16 SecurityBufferLength;
489 	__u8   Buffer[1];	/* variable length GSS security buffer */
490 } __packed;
491 
492 struct smb2_logoff_req {
493 	struct smb2_sync_hdr sync_hdr;
494 	__le16 StructureSize;	/* Must be 4 */
495 	__le16 Reserved;
496 } __packed;
497 
498 struct smb2_logoff_rsp {
499 	struct smb2_sync_hdr sync_hdr;
500 	__le16 StructureSize;	/* Must be 4 */
501 	__le16 Reserved;
502 } __packed;
503 
504 /* Flags/Reserved for SMB3.1.1 */
505 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
506 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
507 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
508 
509 struct smb2_tree_connect_req {
510 	struct smb2_sync_hdr sync_hdr;
511 	__le16 StructureSize;	/* Must be 9 */
512 	__le16 Flags; /* Reserved MBZ for dialects prior to SMB3.1.1 */
513 	__le16 PathOffset;
514 	__le16 PathLength;
515 	__u8   Buffer[1];	/* variable length */
516 } __packed;
517 
518 /* See MS-SMB2 section 2.2.9.2 */
519 /* Context Types */
520 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
521 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
522 
523 struct tree_connect_contexts {
524 	__le16 ContextType;
525 	__le16 DataLength;
526 	__le32 Reserved;
527 	__u8   Data[];
528 } __packed;
529 
530 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
531 struct smb3_blob_data {
532 	__le16 BlobSize;
533 	__u8   BlobData[];
534 } __packed;
535 
536 /* Valid values for Attr */
537 #define SE_GROUP_MANDATORY		0x00000001
538 #define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
539 #define SE_GROUP_ENABLED		0x00000004
540 #define SE_GROUP_OWNER			0x00000008
541 #define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
542 #define SE_GROUP_INTEGRITY		0x00000020
543 #define SE_GROUP_INTEGRITY_ENABLED	0x00000040
544 #define SE_GROUP_RESOURCE		0x20000000
545 #define SE_GROUP_LOGON_ID		0xC0000000
546 
547 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
548 
549 struct sid_array_data {
550 	__le16 SidAttrCount;
551 	/* SidAttrList - array of sid_attr_data structs */
552 } __packed;
553 
554 struct luid_attr_data {
555 
556 } __packed;
557 
558 /*
559  * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
560  * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
561  */
562 
563 struct privilege_array_data {
564 	__le16 PrivilegeCount;
565 	/* array of privilege_data structs */
566 } __packed;
567 
568 struct remoted_identity_tcon_context {
569 	__le16 TicketType; /* must be 0x0001 */
570 	__le16 TicketSize; /* total size of this struct */
571 	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
572 	__le16 UserName; /* offset to null terminated Unicode username string */
573 	__le16 Domain; /* offset to null terminated Unicode domain name */
574 	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
575 	__le16 RestrictedGroups; /* similar to above */
576 	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
577 	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
578 	__le16 Owner; /* offset to BLOB_DATA struct */
579 	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
580 	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
581 	__le16 UserClaims; /* offset to BLOB_DATA struct */
582 	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
583 	__u8   TicketInfo[]; /* variable length buf - remoted identity data */
584 } __packed;
585 
586 struct smb2_tree_connect_req_extension {
587 	__le32 TreeConnectContextOffset;
588 	__le16 TreeConnectContextCount;
589 	__u8  Reserved[10];
590 	__u8  PathName[]; /* variable sized array */
591 	/* followed by array of TreeConnectContexts */
592 } __packed;
593 
594 struct smb2_tree_connect_rsp {
595 	struct smb2_sync_hdr sync_hdr;
596 	__le16 StructureSize;	/* Must be 16 */
597 	__u8   ShareType;  /* see below */
598 	__u8   Reserved;
599 	__le32 ShareFlags; /* see below */
600 	__le32 Capabilities; /* see below */
601 	__le32 MaximalAccess;
602 } __packed;
603 
604 /* Possible ShareType values */
605 #define SMB2_SHARE_TYPE_DISK	0x01
606 #define SMB2_SHARE_TYPE_PIPE	0x02
607 #define	SMB2_SHARE_TYPE_PRINT	0x03
608 
609 /*
610  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
611  * must be set (any of the remaining, SHI1005, flags may be set individually
612  * or in combination.
613  */
614 #define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
615 #define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
616 #define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
617 #define SMB2_SHAREFLAG_NO_CACHING			0x00000030
618 #define SHI1005_FLAGS_DFS				0x00000001
619 #define SHI1005_FLAGS_DFS_ROOT				0x00000002
620 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS		0x00000100
621 #define SHI1005_FLAGS_FORCE_SHARED_DELETE		0x00000200
622 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING		0x00000400
623 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
624 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK		0x00001000
625 #define SHI1005_FLAGS_ENABLE_HASH_V1			0x00002000
626 #define SHI1005_FLAGS_ENABLE_HASH_V2			0x00004000
627 #define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
628 #define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
629 #define SHI1005_FLAGS_ALL				0x0004FF33
630 
631 /* Possible share capabilities */
632 #define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
633 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
634 #define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
635 #define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
636 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
637 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
638 
639 struct smb2_tree_disconnect_req {
640 	struct smb2_sync_hdr sync_hdr;
641 	__le16 StructureSize;	/* Must be 4 */
642 	__le16 Reserved;
643 } __packed;
644 
645 struct smb2_tree_disconnect_rsp {
646 	struct smb2_sync_hdr sync_hdr;
647 	__le16 StructureSize;	/* Must be 4 */
648 	__le16 Reserved;
649 } __packed;
650 
651 /* File Attrubutes */
652 #define FILE_ATTRIBUTE_READONLY			0x00000001
653 #define FILE_ATTRIBUTE_HIDDEN			0x00000002
654 #define FILE_ATTRIBUTE_SYSTEM			0x00000004
655 #define FILE_ATTRIBUTE_DIRECTORY		0x00000010
656 #define FILE_ATTRIBUTE_ARCHIVE			0x00000020
657 #define FILE_ATTRIBUTE_NORMAL			0x00000080
658 #define FILE_ATTRIBUTE_TEMPORARY		0x00000100
659 #define FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
660 #define FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
661 #define FILE_ATTRIBUTE_COMPRESSED		0x00000800
662 #define FILE_ATTRIBUTE_OFFLINE			0x00001000
663 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
664 #define FILE_ATTRIBUTE_ENCRYPTED		0x00004000
665 #define FILE_ATTRIBUTE_INTEGRITY_STREAM		0x00008000
666 #define FILE_ATTRIBUTE_NO_SCRUB_DATA		0x00020000
667 
668 /* Oplock levels */
669 #define SMB2_OPLOCK_LEVEL_NONE		0x00
670 #define SMB2_OPLOCK_LEVEL_II		0x01
671 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
672 #define SMB2_OPLOCK_LEVEL_BATCH		0x09
673 #define SMB2_OPLOCK_LEVEL_LEASE		0xFF
674 /* Non-spec internal type */
675 #define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99
676 
677 /* Desired Access Flags */
678 #define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
679 #define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
680 #define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
681 #define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
682 #define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
683 #define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
684 #define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
685 #define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
686 #define FILE_DELETE_LE			cpu_to_le32(0x00010000)
687 #define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
688 #define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
689 #define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
690 #define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
691 #define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
692 #define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
693 #define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
694 #define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
695 #define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
696 #define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)
697 
698 /* ShareAccess Flags */
699 #define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
700 #define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
701 #define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
702 #define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)
703 
704 /* CreateDisposition Flags */
705 #define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
706 #define FILE_OPEN_LE			cpu_to_le32(0x00000001)
707 #define FILE_CREATE_LE			cpu_to_le32(0x00000002)
708 #define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
709 #define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
710 #define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)
711 
712 /* CreateOptions Flags */
713 #define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
714 /* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
715 #define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
716 #define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
717 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
718 #define FILE_SYNCHRONOUS_IO_ALERT_LE	cpu_to_le32(0x00000010)
719 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE	cpu_to_le32(0x00000020)
720 #define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
721 #define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
722 #define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
723 #define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
724 #define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000)
725 #define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
726 #define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
727 #define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
728 #define FILE_RESERVE_OPFILTER_LE	cpu_to_le32(0x00100000)
729 #define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
730 #define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
731 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
732 
733 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
734 			| FILE_READ_ATTRIBUTES_LE)
735 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
736 			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
737 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
738 
739 /* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
740 #define IL_ANONYMOUS		cpu_to_le32(0x00000000)
741 #define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
742 #define IL_IMPERSONATION	cpu_to_le32(0x00000002)
743 #define IL_DELEGATE		cpu_to_le32(0x00000003)
744 
745 /* Create Context Values */
746 #define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
747 #define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
748 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
749 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
750 #define SMB2_CREATE_ALLOCATION_SIZE		"AISi"
751 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
752 #define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
753 #define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
754 #define SMB2_CREATE_REQUEST_LEASE		"RqLs"
755 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2	"DH2Q"
756 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2	"DH2C"
757 #define SMB2_CREATE_APP_INSTANCE_ID	0x45BCA66AEFA7F74A9008FA462E144D74
758 #define SMB2_CREATE_APP_INSTANCE_VERSION 0xB982D0B73B56074FA07B524A8116A010
759 #define SVHDX_OPEN_DEVICE_CONTEX	0x9CCBCF9E04C1E643980E158DA1F6EC83
760 #define SMB2_CREATE_TAG_POSIX		0x93AD25509CB411E7B42383DE968BCD7C
761 
762 /* Flag (SMB3 open response) values */
763 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
764 
765 /*
766  * Maximum number of iovs we need for an open/create request.
767  * [0] : struct smb2_create_req
768  * [1] : path
769  * [2] : lease context
770  * [3] : durable context
771  * [4] : posix context
772  * [5] : time warp context
773  * [6] : query id context
774  * [7] : compound padding
775  */
776 #define SMB2_CREATE_IOV_SIZE 8
777 
778 struct smb2_create_req {
779 	struct smb2_sync_hdr sync_hdr;
780 	__le16 StructureSize;	/* Must be 57 */
781 	__u8   SecurityFlags;
782 	__u8   RequestedOplockLevel;
783 	__le32 ImpersonationLevel;
784 	__le64 SmbCreateFlags;
785 	__le64 Reserved;
786 	__le32 DesiredAccess;
787 	__le32 FileAttributes;
788 	__le32 ShareAccess;
789 	__le32 CreateDisposition;
790 	__le32 CreateOptions;
791 	__le16 NameOffset;
792 	__le16 NameLength;
793 	__le32 CreateContextsOffset;
794 	__le32 CreateContextsLength;
795 	__u8   Buffer[];
796 } __packed;
797 
798 /*
799  * Maximum size of a SMB2_CREATE response is 64 (smb2 header) +
800  * 88 (fixed part of create response) + 520 (path) + 208 (contexts) +
801  * 2 bytes of padding.
802  */
803 #define MAX_SMB2_CREATE_RESPONSE_SIZE 880
804 
805 struct smb2_create_rsp {
806 	struct smb2_sync_hdr sync_hdr;
807 	__le16 StructureSize;	/* Must be 89 */
808 	__u8   OplockLevel;
809 	__u8   Flag;  /* 0x01 if reparse point */
810 	__le32 CreateAction;
811 	__le64 CreationTime;
812 	__le64 LastAccessTime;
813 	__le64 LastWriteTime;
814 	__le64 ChangeTime;
815 	__le64 AllocationSize;
816 	__le64 EndofFile;
817 	__le32 FileAttributes;
818 	__le32 Reserved2;
819 	__u64  PersistentFileId; /* opaque endianness */
820 	__u64  VolatileFileId; /* opaque endianness */
821 	__le32 CreateContextsOffset;
822 	__le32 CreateContextsLength;
823 	__u8   Buffer[1];
824 } __packed;
825 
826 struct create_context {
827 	__le32 Next;
828 	__le16 NameOffset;
829 	__le16 NameLength;
830 	__le16 Reserved;
831 	__le16 DataOffset;
832 	__le32 DataLength;
833 	__u8 Buffer[];
834 } __packed;
835 
836 #define SMB2_LEASE_READ_CACHING_HE	0x01
837 #define SMB2_LEASE_HANDLE_CACHING_HE	0x02
838 #define SMB2_LEASE_WRITE_CACHING_HE	0x04
839 
840 #define SMB2_LEASE_NONE			cpu_to_le32(0x00)
841 #define SMB2_LEASE_READ_CACHING		cpu_to_le32(0x01)
842 #define SMB2_LEASE_HANDLE_CACHING	cpu_to_le32(0x02)
843 #define SMB2_LEASE_WRITE_CACHING	cpu_to_le32(0x04)
844 
845 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x00000002)
846 #define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET cpu_to_le32(0x00000004)
847 
848 #define SMB2_LEASE_KEY_SIZE 16
849 
850 struct lease_context {
851 	u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
852 	__le32 LeaseState;
853 	__le32 LeaseFlags;
854 	__le64 LeaseDuration;
855 } __packed;
856 
857 struct lease_context_v2 {
858 	u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
859 	__le32 LeaseState;
860 	__le32 LeaseFlags;
861 	__le64 LeaseDuration;
862 	__le64 ParentLeaseKeyLow;
863 	__le64 ParentLeaseKeyHigh;
864 	__le16 Epoch;
865 	__le16 Reserved;
866 } __packed;
867 
868 struct create_lease {
869 	struct create_context ccontext;
870 	__u8   Name[8];
871 	struct lease_context lcontext;
872 } __packed;
873 
874 struct create_lease_v2 {
875 	struct create_context ccontext;
876 	__u8   Name[8];
877 	struct lease_context_v2 lcontext;
878 	__u8   Pad[4];
879 } __packed;
880 
881 struct create_durable {
882 	struct create_context ccontext;
883 	__u8   Name[8];
884 	union {
885 		__u8  Reserved[16];
886 		struct {
887 			__u64 PersistentFileId;
888 			__u64 VolatileFileId;
889 		} Fid;
890 	} Data;
891 } __packed;
892 
893 struct create_posix {
894 	struct create_context ccontext;
895 	__u8	Name[16];
896 	__le32  Mode;
897 	__u32	Reserved;
898 } __packed;
899 
900 /* See MS-SMB2 2.2.13.2.11 */
901 /* Flags */
902 #define SMB2_DHANDLE_FLAG_PERSISTENT	0x00000002
903 struct durable_context_v2 {
904 	__le32 Timeout;
905 	__le32 Flags;
906 	__u64 Reserved;
907 	__u8 CreateGuid[16];
908 } __packed;
909 
910 struct create_durable_v2 {
911 	struct create_context ccontext;
912 	__u8   Name[8];
913 	struct durable_context_v2 dcontext;
914 } __packed;
915 
916 /* See MS-SMB2 2.2.13.2.12 */
917 struct durable_reconnect_context_v2 {
918 	struct {
919 		__u64 PersistentFileId;
920 		__u64 VolatileFileId;
921 	} Fid;
922 	__u8 CreateGuid[16];
923 	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
924 } __packed;
925 
926 /* See MS-SMB2 2.2.14.2.9 */
927 struct create_on_disk_id {
928 	struct create_context ccontext;
929 	__u8   Name[8];
930 	__le64 DiskFileId;
931 	__le64 VolumeId;
932 	__u32  Reserved[4];
933 } __packed;
934 
935 /* See MS-SMB2 2.2.14.2.12 */
936 struct durable_reconnect_context_v2_rsp {
937 	__le32 Timeout;
938 	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
939 } __packed;
940 
941 struct create_durable_handle_reconnect_v2 {
942 	struct create_context ccontext;
943 	__u8   Name[8];
944 	struct durable_reconnect_context_v2 dcontext;
945 	__u8   Pad[4];
946 } __packed;
947 
948 /* See MS-SMB2 2.2.13.2.5 */
949 struct crt_twarp_ctxt {
950 	struct create_context ccontext;
951 	__u8	Name[8];
952 	__le64	Timestamp;
953 
954 } __packed;
955 
956 /* See MS-SMB2 2.2.13.2.9 */
957 struct crt_query_id_ctxt {
958 	struct create_context ccontext;
959 	__u8	Name[8];
960 } __packed;
961 
962 struct crt_sd_ctxt {
963 	struct create_context ccontext;
964 	__u8	Name[8];
965 	struct smb3_sd sd;
966 } __packed;
967 
968 
969 #define COPY_CHUNK_RES_KEY_SIZE	24
970 struct resume_key_req {
971 	char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
972 	__le32	ContextLength;	/* MBZ */
973 	char	Context[];	/* ignored, Windows sets to 4 bytes of zero */
974 } __packed;
975 
976 /* this goes in the ioctl buffer when doing a copychunk request */
977 struct copychunk_ioctl {
978 	char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
979 	__le32 ChunkCount; /* we are only sending 1 */
980 	__le32 Reserved;
981 	/* array will only be one chunk long for us */
982 	__le64 SourceOffset;
983 	__le64 TargetOffset;
984 	__le32 Length; /* how many bytes to copy */
985 	__u32 Reserved2;
986 } __packed;
987 
988 /* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
989 struct file_zero_data_information {
990 	__le64	FileOffset;
991 	__le64	BeyondFinalZero;
992 } __packed;
993 
994 struct copychunk_ioctl_rsp {
995 	__le32 ChunksWritten;
996 	__le32 ChunkBytesWritten;
997 	__le32 TotalBytesWritten;
998 } __packed;
999 
1000 /* See MS-FSCC 2.3.29 and 2.3.30 */
1001 struct get_retrieval_pointer_count_req {
1002 	__le64 StartingVcn; /* virtual cluster number (signed) */
1003 } __packed;
1004 
1005 struct get_retrieval_pointer_count_rsp {
1006 	__le32 ExtentCount;
1007 } __packed;
1008 
1009 /*
1010  * See MS-FSCC 2.3.33 and 2.3.34
1011  * request is the same as get_retrieval_point_count_req struct above
1012  */
1013 struct smb3_extents {
1014 	__le64 NextVcn;
1015 	__le64 Lcn; /* logical cluster number */
1016 } __packed;
1017 
1018 struct get_retrieval_pointers_refcount_rsp {
1019 	__le32 ExtentCount;
1020 	__u32  Reserved;
1021 	__le64 StartingVcn;
1022 	struct smb3_extents extents[];
1023 } __packed;
1024 
1025 struct fsctl_set_integrity_information_req {
1026 	__le16	ChecksumAlgorithm;
1027 	__le16	Reserved;
1028 	__le32	Flags;
1029 } __packed;
1030 
1031 struct fsctl_get_integrity_information_rsp {
1032 	__le16	ChecksumAlgorithm;
1033 	__le16	Reserved;
1034 	__le32	Flags;
1035 	__le32	ChecksumChunkSizeInBytes;
1036 	__le32	ClusterSizeInBytes;
1037 } __packed;
1038 
1039 struct file_allocated_range_buffer {
1040 	__le64	file_offset;
1041 	__le64	length;
1042 } __packed;
1043 
1044 /* Integrity ChecksumAlgorithm choices for above */
1045 #define	CHECKSUM_TYPE_NONE	0x0000
1046 #define	CHECKSUM_TYPE_CRC64	0x0002
1047 #define CHECKSUM_TYPE_UNCHANGED	0xFFFF	/* set only */
1048 
1049 /* Integrity flags for above */
1050 #define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF	0x00000001
1051 
1052 /* Reparse structures - see MS-FSCC 2.1.2 */
1053 
1054 /* struct fsctl_reparse_info_req is empty, only response structs (see below) */
1055 
1056 struct reparse_data_buffer {
1057 	__le32	ReparseTag;
1058 	__le16	ReparseDataLength;
1059 	__u16	Reserved;
1060 	__u8	DataBuffer[]; /* Variable Length */
1061 } __packed;
1062 
1063 struct reparse_guid_data_buffer {
1064 	__le32	ReparseTag;
1065 	__le16	ReparseDataLength;
1066 	__u16	Reserved;
1067 	__u8	ReparseGuid[16];
1068 	__u8	DataBuffer[]; /* Variable Length */
1069 } __packed;
1070 
1071 struct reparse_mount_point_data_buffer {
1072 	__le32	ReparseTag;
1073 	__le16	ReparseDataLength;
1074 	__u16	Reserved;
1075 	__le16	SubstituteNameOffset;
1076 	__le16	SubstituteNameLength;
1077 	__le16	PrintNameOffset;
1078 	__le16	PrintNameLength;
1079 	__u8	PathBuffer[]; /* Variable Length */
1080 } __packed;
1081 
1082 #define SYMLINK_FLAG_RELATIVE 0x00000001
1083 
1084 struct reparse_symlink_data_buffer {
1085 	__le32	ReparseTag;
1086 	__le16	ReparseDataLength;
1087 	__u16	Reserved;
1088 	__le16	SubstituteNameOffset;
1089 	__le16	SubstituteNameLength;
1090 	__le16	PrintNameOffset;
1091 	__le16	PrintNameLength;
1092 	__le32	Flags;
1093 	__u8	PathBuffer[]; /* Variable Length */
1094 } __packed;
1095 
1096 /* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
1097 
1098 
1099 /* See MS-DFSC 2.2.2 */
1100 struct fsctl_get_dfs_referral_req {
1101 	__le16 MaxReferralLevel;
1102 	__u8 RequestFileName[];
1103 } __packed;
1104 
1105 /* DFS response is struct get_dfs_refer_rsp */
1106 
1107 /* See MS-SMB2 2.2.31.3 */
1108 struct network_resiliency_req {
1109 	__le32 Timeout;
1110 	__le32 Reserved;
1111 } __packed;
1112 /* There is no buffer for the response ie no struct network_resiliency_rsp */
1113 
1114 
1115 struct validate_negotiate_info_req {
1116 	__le32 Capabilities;
1117 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1118 	__le16 SecurityMode;
1119 	__le16 DialectCount;
1120 	__le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
1121 } __packed;
1122 
1123 struct validate_negotiate_info_rsp {
1124 	__le32 Capabilities;
1125 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1126 	__le16 SecurityMode;
1127 	__le16 Dialect; /* Dialect in use for the connection */
1128 } __packed;
1129 
1130 #define RSS_CAPABLE	cpu_to_le32(0x00000001)
1131 #define RDMA_CAPABLE	cpu_to_le32(0x00000002)
1132 
1133 #define INTERNETWORK	cpu_to_le16(0x0002)
1134 #define INTERNETWORKV6	cpu_to_le16(0x0017)
1135 
1136 struct network_interface_info_ioctl_rsp {
1137 	__le32 Next; /* next interface. zero if this is last one */
1138 	__le32 IfIndex;
1139 	__le32 Capability; /* RSS or RDMA Capable */
1140 	__le32 Reserved;
1141 	__le64 LinkSpeed;
1142 	__le16 Family;
1143 	__u8 Buffer[126];
1144 } __packed;
1145 
1146 struct iface_info_ipv4 {
1147 	__be16 Port;
1148 	__be32 IPv4Address;
1149 	__be64 Reserved;
1150 } __packed;
1151 
1152 struct iface_info_ipv6 {
1153 	__be16 Port;
1154 	__be32 FlowInfo;
1155 	__u8   IPv6Address[16];
1156 	__be32 ScopeId;
1157 } __packed;
1158 
1159 #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
1160 
1161 struct compress_ioctl {
1162 	__le16 CompressionState; /* See cifspdu.h for possible flag values */
1163 } __packed;
1164 
1165 struct duplicate_extents_to_file {
1166 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1167 	__u64 VolatileFileHandle;
1168 	__le64 SourceFileOffset;
1169 	__le64 TargetFileOffset;
1170 	__le64 ByteCount;  /* Bytes to be copied */
1171 } __packed;
1172 
1173 /*
1174  * Maximum number of iovs we need for an ioctl request.
1175  * [0] : struct smb2_ioctl_req
1176  * [1] : in_data
1177  */
1178 #define SMB2_IOCTL_IOV_SIZE 2
1179 
1180 struct smb2_ioctl_req {
1181 	struct smb2_sync_hdr sync_hdr;
1182 	__le16 StructureSize;	/* Must be 57 */
1183 	__u16 Reserved;
1184 	__le32 CtlCode;
1185 	__u64  PersistentFileId; /* opaque endianness */
1186 	__u64  VolatileFileId; /* opaque endianness */
1187 	__le32 InputOffset;
1188 	__le32 InputCount;
1189 	__le32 MaxInputResponse;
1190 	__le32 OutputOffset;
1191 	__le32 OutputCount;
1192 	__le32 MaxOutputResponse;
1193 	__le32 Flags;
1194 	__u32  Reserved2;
1195 	__u8   Buffer[];
1196 } __packed;
1197 
1198 struct smb2_ioctl_rsp {
1199 	struct smb2_sync_hdr sync_hdr;
1200 	__le16 StructureSize;	/* Must be 57 */
1201 	__u16 Reserved;
1202 	__le32 CtlCode;
1203 	__u64  PersistentFileId; /* opaque endianness */
1204 	__u64  VolatileFileId; /* opaque endianness */
1205 	__le32 InputOffset;
1206 	__le32 InputCount;
1207 	__le32 OutputOffset;
1208 	__le32 OutputCount;
1209 	__le32 Flags;
1210 	__u32  Reserved2;
1211 	/* char * buffer[] */
1212 } __packed;
1213 
1214 /* Currently defined values for close flags */
1215 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
1216 struct smb2_close_req {
1217 	struct smb2_sync_hdr sync_hdr;
1218 	__le16 StructureSize;	/* Must be 24 */
1219 	__le16 Flags;
1220 	__le32 Reserved;
1221 	__u64  PersistentFileId; /* opaque endianness */
1222 	__u64  VolatileFileId; /* opaque endianness */
1223 } __packed;
1224 
1225 /*
1226  * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
1227  */
1228 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
1229 
1230 struct smb2_close_rsp {
1231 	struct smb2_sync_hdr sync_hdr;
1232 	__le16 StructureSize; /* 60 */
1233 	__le16 Flags;
1234 	__le32 Reserved;
1235 	__le64 CreationTime;
1236 	__le64 LastAccessTime;
1237 	__le64 LastWriteTime;
1238 	__le64 ChangeTime;
1239 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1240 	__le64 EndOfFile;
1241 	__le32 Attributes;
1242 } __packed;
1243 
1244 struct smb2_flush_req {
1245 	struct smb2_sync_hdr sync_hdr;
1246 	__le16 StructureSize;	/* Must be 24 */
1247 	__le16 Reserved1;
1248 	__le32 Reserved2;
1249 	__u64  PersistentFileId; /* opaque endianness */
1250 	__u64  VolatileFileId; /* opaque endianness */
1251 } __packed;
1252 
1253 struct smb2_flush_rsp {
1254 	struct smb2_sync_hdr sync_hdr;
1255 	__le16 StructureSize;
1256 	__le16 Reserved;
1257 } __packed;
1258 
1259 /* For read request Flags field below, following flag is defined for SMB3.02 */
1260 #define SMB2_READFLAG_READ_UNBUFFERED	0x01
1261 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
1262 
1263 /* Channel field for read and write: exactly one of following flags can be set*/
1264 #define SMB2_CHANNEL_NONE	cpu_to_le32(0x00000000)
1265 #define SMB2_CHANNEL_RDMA_V1	cpu_to_le32(0x00000001) /* SMB3 or later */
1266 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002) /* >= SMB3.02 */
1267 #define SMB2_CHANNEL_RDMA_TRANSFORM cpu_to_le32(0x00000003) /* >= SMB3.02, only used on write */
1268 
1269 /* SMB2 read request without RFC1001 length at the beginning */
1270 struct smb2_read_plain_req {
1271 	struct smb2_sync_hdr sync_hdr;
1272 	__le16 StructureSize; /* Must be 49 */
1273 	__u8   Padding; /* offset from start of SMB2 header to place read */
1274 	__u8   Flags; /* MBZ unless SMB3.02 or later */
1275 	__le32 Length;
1276 	__le64 Offset;
1277 	__u64  PersistentFileId; /* opaque endianness */
1278 	__u64  VolatileFileId; /* opaque endianness */
1279 	__le32 MinimumCount;
1280 	__le32 Channel; /* MBZ except for SMB3 or later */
1281 	__le32 RemainingBytes;
1282 	__le16 ReadChannelInfoOffset;
1283 	__le16 ReadChannelInfoLength;
1284 	__u8   Buffer[1];
1285 } __packed;
1286 
1287 /* Read flags */
1288 #define SMB2_READFLAG_RESPONSE_NONE	0x00000000
1289 #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM	0x00000001
1290 
1291 struct smb2_read_rsp {
1292 	struct smb2_sync_hdr sync_hdr;
1293 	__le16 StructureSize; /* Must be 17 */
1294 	__u8   DataOffset;
1295 	__u8   Reserved;
1296 	__le32 DataLength;
1297 	__le32 DataRemaining;
1298 	__u32  Flags;
1299 	__u8   Buffer[1];
1300 } __packed;
1301 
1302 /* For write request Flags field below the following flags are defined: */
1303 #define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
1304 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */
1305 
1306 struct smb2_write_req {
1307 	struct smb2_sync_hdr sync_hdr;
1308 	__le16 StructureSize; /* Must be 49 */
1309 	__le16 DataOffset; /* offset from start of SMB2 header to write data */
1310 	__le32 Length;
1311 	__le64 Offset;
1312 	__u64  PersistentFileId; /* opaque endianness */
1313 	__u64  VolatileFileId; /* opaque endianness */
1314 	__le32 Channel; /* MBZ unless SMB3.02 or later */
1315 	__le32 RemainingBytes;
1316 	__le16 WriteChannelInfoOffset;
1317 	__le16 WriteChannelInfoLength;
1318 	__le32 Flags;
1319 	__u8   Buffer[1];
1320 } __packed;
1321 
1322 struct smb2_write_rsp {
1323 	struct smb2_sync_hdr sync_hdr;
1324 	__le16 StructureSize; /* Must be 17 */
1325 	__u8   DataOffset;
1326 	__u8   Reserved;
1327 	__le32 DataLength;
1328 	__le32 DataRemaining;
1329 	__u32  Reserved2;
1330 	__u8   Buffer[1];
1331 } __packed;
1332 
1333 /* notify flags */
1334 #define SMB2_WATCH_TREE			0x0001
1335 
1336 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
1337 #define FILE_NOTIFY_CHANGE_FILE_NAME		0x00000001
1338 #define FILE_NOTIFY_CHANGE_DIR_NAME		0x00000002
1339 #define FILE_NOTIFY_CHANGE_ATTRIBUTES		0x00000004
1340 #define FILE_NOTIFY_CHANGE_SIZE			0x00000008
1341 #define FILE_NOTIFY_CHANGE_LAST_WRITE		0x00000010
1342 #define FILE_NOTIFY_CHANGE_LAST_ACCESS		0x00000020
1343 #define FILE_NOTIFY_CHANGE_CREATION		0x00000040
1344 #define FILE_NOTIFY_CHANGE_EA			0x00000080
1345 #define FILE_NOTIFY_CHANGE_SECURITY		0x00000100
1346 #define FILE_NOTIFY_CHANGE_STREAM_NAME		0x00000200
1347 #define FILE_NOTIFY_CHANGE_STREAM_SIZE		0x00000400
1348 #define FILE_NOTIFY_CHANGE_STREAM_WRITE		0x00000800
1349 
1350 struct smb2_change_notify_req {
1351 	struct smb2_sync_hdr sync_hdr;
1352 	__le16	StructureSize;
1353 	__le16	Flags;
1354 	__le32	OutputBufferLength;
1355 	__u64	PersistentFileId; /* opaque endianness */
1356 	__u64	VolatileFileId; /* opaque endianness */
1357 	__le32	CompletionFilter;
1358 	__u32	Reserved;
1359 } __packed;
1360 
1361 struct smb2_change_notify_rsp {
1362 	struct smb2_sync_hdr sync_hdr;
1363 	__le16	StructureSize;  /* Must be 9 */
1364 	__le16	OutputBufferOffset;
1365 	__le32	OutputBufferLength;
1366 	__u8	Buffer[1]; /* array of file notify structs */
1367 } __packed;
1368 
1369 #define SMB2_LOCKFLAG_SHARED_LOCK	0x0001
1370 #define SMB2_LOCKFLAG_EXCLUSIVE_LOCK	0x0002
1371 #define SMB2_LOCKFLAG_UNLOCK		0x0004
1372 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
1373 
1374 struct smb2_lock_element {
1375 	__le64 Offset;
1376 	__le64 Length;
1377 	__le32 Flags;
1378 	__le32 Reserved;
1379 } __packed;
1380 
1381 struct smb2_lock_req {
1382 	struct smb2_sync_hdr sync_hdr;
1383 	__le16 StructureSize; /* Must be 48 */
1384 	__le16 LockCount;
1385 	__le32 Reserved;
1386 	__u64  PersistentFileId; /* opaque endianness */
1387 	__u64  VolatileFileId; /* opaque endianness */
1388 	/* Followed by at least one */
1389 	struct smb2_lock_element locks[1];
1390 } __packed;
1391 
1392 struct smb2_lock_rsp {
1393 	struct smb2_sync_hdr sync_hdr;
1394 	__le16 StructureSize; /* Must be 4 */
1395 	__le16 Reserved;
1396 } __packed;
1397 
1398 struct smb2_echo_req {
1399 	struct smb2_sync_hdr sync_hdr;
1400 	__le16 StructureSize;	/* Must be 4 */
1401 	__u16  Reserved;
1402 } __packed;
1403 
1404 struct smb2_echo_rsp {
1405 	struct smb2_sync_hdr sync_hdr;
1406 	__le16 StructureSize;	/* Must be 4 */
1407 	__u16  Reserved;
1408 } __packed;
1409 
1410 /* search (query_directory) Flags field */
1411 #define SMB2_RESTART_SCANS		0x01
1412 #define SMB2_RETURN_SINGLE_ENTRY	0x02
1413 #define SMB2_INDEX_SPECIFIED		0x04
1414 #define SMB2_REOPEN			0x10
1415 
1416 #define SMB2_QUERY_DIRECTORY_IOV_SIZE 2
1417 
1418 struct smb2_query_directory_req {
1419 	struct smb2_sync_hdr sync_hdr;
1420 	__le16 StructureSize; /* Must be 33 */
1421 	__u8   FileInformationClass;
1422 	__u8   Flags;
1423 	__le32 FileIndex;
1424 	__u64  PersistentFileId; /* opaque endianness */
1425 	__u64  VolatileFileId; /* opaque endianness */
1426 	__le16 FileNameOffset;
1427 	__le16 FileNameLength;
1428 	__le32 OutputBufferLength;
1429 	__u8   Buffer[1];
1430 } __packed;
1431 
1432 struct smb2_query_directory_rsp {
1433 	struct smb2_sync_hdr sync_hdr;
1434 	__le16 StructureSize; /* Must be 9 */
1435 	__le16 OutputBufferOffset;
1436 	__le32 OutputBufferLength;
1437 	__u8   Buffer[1];
1438 } __packed;
1439 
1440 /* Possible InfoType values */
1441 #define SMB2_O_INFO_FILE	0x01
1442 #define SMB2_O_INFO_FILESYSTEM	0x02
1443 #define SMB2_O_INFO_SECURITY	0x03
1444 #define SMB2_O_INFO_QUOTA	0x04
1445 
1446 /* Security info type additionalinfo flags. See MS-SMB2 (2.2.37) or MS-DTYP */
1447 #define OWNER_SECINFO   0x00000001
1448 #define GROUP_SECINFO   0x00000002
1449 #define DACL_SECINFO   0x00000004
1450 #define SACL_SECINFO   0x00000008
1451 #define LABEL_SECINFO   0x00000010
1452 #define ATTRIBUTE_SECINFO   0x00000020
1453 #define SCOPE_SECINFO   0x00000040
1454 #define BACKUP_SECINFO   0x00010000
1455 #define UNPROTECTED_SACL_SECINFO   0x10000000
1456 #define UNPROTECTED_DACL_SECINFO   0x20000000
1457 #define PROTECTED_SACL_SECINFO   0x40000000
1458 #define PROTECTED_DACL_SECINFO   0x80000000
1459 
1460 /* Flags used for FileFullEAinfo */
1461 #define SL_RESTART_SCAN		0x00000001
1462 #define SL_RETURN_SINGLE_ENTRY	0x00000002
1463 #define SL_INDEX_SPECIFIED	0x00000004
1464 
1465 struct smb2_query_info_req {
1466 	struct smb2_sync_hdr sync_hdr;
1467 	__le16 StructureSize; /* Must be 41 */
1468 	__u8   InfoType;
1469 	__u8   FileInfoClass;
1470 	__le32 OutputBufferLength;
1471 	__le16 InputBufferOffset;
1472 	__u16  Reserved;
1473 	__le32 InputBufferLength;
1474 	__le32 AdditionalInformation;
1475 	__le32 Flags;
1476 	__u64  PersistentFileId; /* opaque endianness */
1477 	__u64  VolatileFileId; /* opaque endianness */
1478 	__u8   Buffer[1];
1479 } __packed;
1480 
1481 struct smb2_query_info_rsp {
1482 	struct smb2_sync_hdr sync_hdr;
1483 	__le16 StructureSize; /* Must be 9 */
1484 	__le16 OutputBufferOffset;
1485 	__le32 OutputBufferLength;
1486 	__u8   Buffer[1];
1487 } __packed;
1488 
1489 /*
1490  * Maximum number of iovs we need for a set-info request.
1491  * The largest one is rename/hardlink
1492  * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
1493  * [1] : path
1494  * [2] : compound padding
1495  */
1496 #define SMB2_SET_INFO_IOV_SIZE 3
1497 
1498 struct smb2_set_info_req {
1499 	struct smb2_sync_hdr sync_hdr;
1500 	__le16 StructureSize; /* Must be 33 */
1501 	__u8   InfoType;
1502 	__u8   FileInfoClass;
1503 	__le32 BufferLength;
1504 	__le16 BufferOffset;
1505 	__u16  Reserved;
1506 	__le32 AdditionalInformation;
1507 	__u64  PersistentFileId; /* opaque endianness */
1508 	__u64  VolatileFileId; /* opaque endianness */
1509 	__u8   Buffer[1];
1510 } __packed;
1511 
1512 struct smb2_set_info_rsp {
1513 	struct smb2_sync_hdr sync_hdr;
1514 	__le16 StructureSize; /* Must be 2 */
1515 } __packed;
1516 
1517 struct smb2_oplock_break {
1518 	struct smb2_sync_hdr sync_hdr;
1519 	__le16 StructureSize; /* Must be 24 */
1520 	__u8   OplockLevel;
1521 	__u8   Reserved;
1522 	__le32 Reserved2;
1523 	__u64  PersistentFid;
1524 	__u64  VolatileFid;
1525 } __packed;
1526 
1527 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1528 
1529 struct smb2_lease_break {
1530 	struct smb2_sync_hdr sync_hdr;
1531 	__le16 StructureSize; /* Must be 44 */
1532 	__le16 Epoch;
1533 	__le32 Flags;
1534 	__u8   LeaseKey[16];
1535 	__le32 CurrentLeaseState;
1536 	__le32 NewLeaseState;
1537 	__le32 BreakReason;
1538 	__le32 AccessMaskHint;
1539 	__le32 ShareMaskHint;
1540 } __packed;
1541 
1542 struct smb2_lease_ack {
1543 	struct smb2_sync_hdr sync_hdr;
1544 	__le16 StructureSize; /* Must be 36 */
1545 	__le16 Reserved;
1546 	__le32 Flags;
1547 	__u8   LeaseKey[16];
1548 	__le32 LeaseState;
1549 	__le64 LeaseDuration;
1550 } __packed;
1551 
1552 /*
1553  *	PDU infolevel structure definitions
1554  *	BB consider moving to a different header
1555  */
1556 
1557 /* File System Information Classes */
1558 #define FS_VOLUME_INFORMATION		1 /* Query */
1559 #define FS_LABEL_INFORMATION		2 /* Local only */
1560 #define FS_SIZE_INFORMATION		3 /* Query */
1561 #define FS_DEVICE_INFORMATION		4 /* Query */
1562 #define FS_ATTRIBUTE_INFORMATION	5 /* Query */
1563 #define FS_CONTROL_INFORMATION		6 /* Query, Set */
1564 #define FS_FULL_SIZE_INFORMATION	7 /* Query */
1565 #define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
1566 #define FS_DRIVER_PATH_INFORMATION	9 /* Local only */
1567 #define FS_VOLUME_FLAGS_INFORMATION	10 /* Local only */
1568 #define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
1569 #define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */
1570 
1571 struct smb2_fs_full_size_info {
1572 	__le64 TotalAllocationUnits;
1573 	__le64 CallerAvailableAllocationUnits;
1574 	__le64 ActualAvailableAllocationUnits;
1575 	__le32 SectorsPerAllocationUnit;
1576 	__le32 BytesPerSector;
1577 } __packed;
1578 
1579 #define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
1580 #define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1581 #define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
1582 #define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
1583 
1584 /* sector size info struct */
1585 struct smb3_fs_ss_info {
1586 	__le32 LogicalBytesPerSector;
1587 	__le32 PhysicalBytesPerSectorForAtomicity;
1588 	__le32 PhysicalBytesPerSectorForPerf;
1589 	__le32 FileSystemEffectivePhysicalBytesPerSectorForAtomicity;
1590 	__le32 Flags;
1591 	__le32 ByteOffsetForSectorAlignment;
1592 	__le32 ByteOffsetForPartitionAlignment;
1593 } __packed;
1594 
1595 /* volume info struct - see MS-FSCC 2.5.9 */
1596 #define MAX_VOL_LABEL_LEN	32
1597 struct smb3_fs_vol_info {
1598 	__le64	VolumeCreationTime;
1599 	__u32	VolumeSerialNumber;
1600 	__le32	VolumeLabelLength; /* includes trailing null */
1601 	__u8	SupportsObjects; /* True if eg like NTFS, supports objects */
1602 	__u8	Reserved;
1603 	__u8	VolumeLabel[]; /* variable len */
1604 } __packed;
1605 
1606 /* partial list of QUERY INFO levels */
1607 #define FILE_DIRECTORY_INFORMATION	1
1608 #define FILE_FULL_DIRECTORY_INFORMATION 2
1609 #define FILE_BOTH_DIRECTORY_INFORMATION 3
1610 #define FILE_BASIC_INFORMATION		4
1611 #define FILE_STANDARD_INFORMATION	5
1612 #define FILE_INTERNAL_INFORMATION	6
1613 #define FILE_EA_INFORMATION	        7
1614 #define FILE_ACCESS_INFORMATION		8
1615 #define FILE_NAME_INFORMATION		9
1616 #define FILE_RENAME_INFORMATION		10
1617 #define FILE_LINK_INFORMATION		11
1618 #define FILE_NAMES_INFORMATION		12
1619 #define FILE_DISPOSITION_INFORMATION	13
1620 #define FILE_POSITION_INFORMATION	14
1621 #define FILE_FULL_EA_INFORMATION	15
1622 #define FILE_MODE_INFORMATION		16
1623 #define FILE_ALIGNMENT_INFORMATION	17
1624 #define FILE_ALL_INFORMATION		18
1625 #define FILE_ALLOCATION_INFORMATION	19
1626 #define FILE_END_OF_FILE_INFORMATION	20
1627 #define FILE_ALTERNATE_NAME_INFORMATION 21
1628 #define FILE_STREAM_INFORMATION		22
1629 #define FILE_PIPE_INFORMATION		23
1630 #define FILE_PIPE_LOCAL_INFORMATION	24
1631 #define FILE_PIPE_REMOTE_INFORMATION	25
1632 #define FILE_MAILSLOT_QUERY_INFORMATION 26
1633 #define FILE_MAILSLOT_SET_INFORMATION	27
1634 #define FILE_COMPRESSION_INFORMATION	28
1635 #define FILE_OBJECT_ID_INFORMATION	29
1636 /* Number 30 not defined in documents */
1637 #define FILE_MOVE_CLUSTER_INFORMATION	31
1638 #define FILE_QUOTA_INFORMATION		32
1639 #define FILE_REPARSE_POINT_INFORMATION	33
1640 #define FILE_NETWORK_OPEN_INFORMATION	34
1641 #define FILE_ATTRIBUTE_TAG_INFORMATION	35
1642 #define FILE_TRACKING_INFORMATION	36
1643 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
1644 #define FILEID_FULL_DIRECTORY_INFORMATION 38
1645 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
1646 #define FILE_SHORT_NAME_INFORMATION	40
1647 #define FILE_SFIO_RESERVE_INFORMATION	44
1648 #define FILE_SFIO_VOLUME_INFORMATION	45
1649 #define FILE_HARD_LINK_INFORMATION	46
1650 #define FILE_NORMALIZED_NAME_INFORMATION 48
1651 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1652 #define FILE_STANDARD_LINK_INFORMATION	54
1653 #define FILE_ID_INFORMATION		59
1654 
1655 struct smb2_file_internal_info {
1656 	__le64 IndexNumber;
1657 } __packed; /* level 6 Query */
1658 
1659 struct smb2_file_rename_info { /* encoding of request for level 10 */
1660 	__u8   ReplaceIfExists; /* 1 = replace existing target with new */
1661 				/* 0 = fail if target already exists */
1662 	__u8   Reserved[7];
1663 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1664 	__le32 FileNameLength;
1665 	char   FileName[];     /* New name to be assigned */
1666 	/* padding - overall struct size must be >= 24 so filename + pad >= 6 */
1667 } __packed; /* level 10 Set */
1668 
1669 struct smb2_file_link_info { /* encoding of request for level 11 */
1670 	__u8   ReplaceIfExists; /* 1 = replace existing link with new */
1671 				/* 0 = fail if link already exists */
1672 	__u8   Reserved[7];
1673 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1674 	__le32 FileNameLength;
1675 	char   FileName[];     /* Name to be assigned to new link */
1676 } __packed; /* level 11 Set */
1677 
1678 struct smb2_file_full_ea_info { /* encoding of response for level 15 */
1679 	__le32 next_entry_offset;
1680 	__u8   flags;
1681 	__u8   ea_name_length;
1682 	__le16 ea_value_length;
1683 	char   ea_data[]; /* \0 terminated name plus value */
1684 } __packed; /* level 15 Set */
1685 
1686 /*
1687  * This level 18, although with struct with same name is different from cifs
1688  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1689  * CurrentByteOffset.
1690  */
1691 struct smb2_file_all_info { /* data block encoding of response to level 18 */
1692 	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
1693 	__le64 LastAccessTime;
1694 	__le64 LastWriteTime;
1695 	__le64 ChangeTime;
1696 	__le32 Attributes;
1697 	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
1698 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1699 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
1700 	__le32 NumberOfLinks;	/* hard links */
1701 	__u8   DeletePending;
1702 	__u8   Directory;
1703 	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
1704 	__le64 IndexNumber;
1705 	__le32 EASize;
1706 	__le32 AccessFlags;
1707 	__le64 CurrentByteOffset;
1708 	__le32 Mode;
1709 	__le32 AlignmentRequirement;
1710 	__le32 FileNameLength;
1711 	char   FileName[1];
1712 } __packed; /* level 18 Query */
1713 
1714 struct smb2_file_eof_info { /* encoding of request for level 10 */
1715 	__le64 EndOfFile; /* new end of file value */
1716 } __packed; /* level 20 Set */
1717 
1718 struct smb2_file_reparse_point_info {
1719 	__le64 IndexNumber;
1720 	__le32 Tag;
1721 } __packed;
1722 
1723 struct smb2_file_network_open_info {
1724 	__le64 CreationTime;
1725 	__le64 LastAccessTime;
1726 	__le64 LastWriteTime;
1727 	__le64 ChangeTime;
1728 	__le64 AllocationSize;
1729 	__le64 EndOfFile;
1730 	__le32 Attributes;
1731 	__le32 Reserved;
1732 } __packed; /* level 34 Query also similar returned in close rsp and open rsp */
1733 
1734 /* See MS-FSCC 2.4.43 */
1735 struct smb2_file_id_information {
1736 	__le64	VolumeSerialNumber;
1737 	__u64  PersistentFileId; /* opaque endianness */
1738 	__u64  VolatileFileId; /* opaque endianness */
1739 } __packed; /* level 59 */
1740 
1741 extern char smb2_padding[7];
1742 
1743 /* equivalent of the contents of SMB3.1.1 POSIX open context response */
1744 struct create_posix_rsp {
1745 	u32 nlink;
1746 	u32 reparse_tag;
1747 	u32 mode;
1748 	struct cifs_sid owner; /* var-sized on the wire */
1749 	struct cifs_sid group; /* var-sized on the wire */
1750 } __packed;
1751 
1752 /*
1753  * SMB2-only POSIX info level for query dir
1754  *
1755  * See posix_info_sid_size(), posix_info_extra_size() and
1756  * posix_info_parse() to help with the handling of this struct.
1757  */
1758 struct smb2_posix_info {
1759 	__le32 NextEntryOffset;
1760 	__u32 Ignored;
1761 	__le64 CreationTime;
1762 	__le64 LastAccessTime;
1763 	__le64 LastWriteTime;
1764 	__le64 ChangeTime;
1765 	__le64 EndOfFile;
1766 	__le64 AllocationSize;
1767 	__le32 DosAttributes;
1768 	__le64 Inode;
1769 	__le32 DeviceId;
1770 	__le32 Zero;
1771 	/* beginning of POSIX Create Context Response */
1772 	__le32 HardLinks;
1773 	__le32 ReparseTag;
1774 	__le32 Mode;
1775 	/*
1776 	 * var sized owner SID
1777 	 * var sized group SID
1778 	 * le32 filenamelength
1779 	 * u8  filename[]
1780 	 */
1781 } __packed;
1782 
1783 /* Level 100 query info */
1784 struct smb311_posix_qinfo {
1785 	__le64 CreationTime;
1786 	__le64 LastAccessTime;
1787 	__le64 LastWriteTime;
1788 	__le64 ChangeTime;
1789 	__le64 EndOfFile;
1790 	__le64 AllocationSize;
1791 	__le32 DosAttributes;
1792 	__le64 Inode;
1793 	__le32 DeviceId;
1794 	__le32 Zero;
1795 	/* beginning of POSIX Create Context Response */
1796 	__le32 HardLinks;
1797 	__le32 ReparseTag;
1798 	__le32 Mode;
1799 	u8     Sids[];
1800 	/*
1801 	 * var sized owner SID
1802 	 * var sized group SID
1803 	 * le32 filenamelength
1804 	 * u8  filename[]
1805 	 */
1806 } __packed;
1807 
1808 /*
1809  * Parsed version of the above struct. Allows direct access to the
1810  * variable length fields
1811  */
1812 struct smb2_posix_info_parsed {
1813 	const struct smb2_posix_info *base;
1814 	size_t size;
1815 	struct cifs_sid owner;
1816 	struct cifs_sid group;
1817 	int name_len;
1818 	const u8 *name;
1819 };
1820 
1821 #endif				/* _SMB2PDU_H */
1822