1 /* SPDX-License-Identifier: LGPL-2.1 */
2 #ifndef _COMMON_SMB2PDU_H
3 #define _COMMON_SMB2PDU_H
4 
5 /*
6  * Note that, due to trying to use names similar to the protocol specifications,
7  * there are many mixed case field names in the structures below.  Although
8  * this does not match typical Linux kernel style, it is necessary to be
9  * able to match against the protocol specfication.
10  *
11  * SMB2 commands
12  * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
13  * (ie no useful data other than the SMB error code itself) and are marked such.
14  * Knowing this helps avoid response buffer allocations and copy in some cases.
15  */
16 
17 /* List of commands in host endian */
18 #define SMB2_NEGOTIATE_HE	0x0000
19 #define SMB2_SESSION_SETUP_HE	0x0001
20 #define SMB2_LOGOFF_HE		0x0002 /* trivial request/resp */
21 #define SMB2_TREE_CONNECT_HE	0x0003
22 #define SMB2_TREE_DISCONNECT_HE	0x0004 /* trivial req/resp */
23 #define SMB2_CREATE_HE		0x0005
24 #define SMB2_CLOSE_HE		0x0006
25 #define SMB2_FLUSH_HE		0x0007 /* trivial resp */
26 #define SMB2_READ_HE		0x0008
27 #define SMB2_WRITE_HE		0x0009
28 #define SMB2_LOCK_HE		0x000A
29 #define SMB2_IOCTL_HE		0x000B
30 #define SMB2_CANCEL_HE		0x000C
31 #define SMB2_ECHO_HE		0x000D
32 #define SMB2_QUERY_DIRECTORY_HE	0x000E
33 #define SMB2_CHANGE_NOTIFY_HE	0x000F
34 #define SMB2_QUERY_INFO_HE	0x0010
35 #define SMB2_SET_INFO_HE	0x0011
36 #define SMB2_OPLOCK_BREAK_HE	0x0012
37 
38 /* The same list in little endian */
39 #define SMB2_NEGOTIATE		cpu_to_le16(SMB2_NEGOTIATE_HE)
40 #define SMB2_SESSION_SETUP	cpu_to_le16(SMB2_SESSION_SETUP_HE)
41 #define SMB2_LOGOFF		cpu_to_le16(SMB2_LOGOFF_HE)
42 #define SMB2_TREE_CONNECT	cpu_to_le16(SMB2_TREE_CONNECT_HE)
43 #define SMB2_TREE_DISCONNECT	cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
44 #define SMB2_CREATE		cpu_to_le16(SMB2_CREATE_HE)
45 #define SMB2_CLOSE		cpu_to_le16(SMB2_CLOSE_HE)
46 #define SMB2_FLUSH		cpu_to_le16(SMB2_FLUSH_HE)
47 #define SMB2_READ		cpu_to_le16(SMB2_READ_HE)
48 #define SMB2_WRITE		cpu_to_le16(SMB2_WRITE_HE)
49 #define SMB2_LOCK		cpu_to_le16(SMB2_LOCK_HE)
50 #define SMB2_IOCTL		cpu_to_le16(SMB2_IOCTL_HE)
51 #define SMB2_CANCEL		cpu_to_le16(SMB2_CANCEL_HE)
52 #define SMB2_ECHO		cpu_to_le16(SMB2_ECHO_HE)
53 #define SMB2_QUERY_DIRECTORY	cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
54 #define SMB2_CHANGE_NOTIFY	cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
55 #define SMB2_QUERY_INFO		cpu_to_le16(SMB2_QUERY_INFO_HE)
56 #define SMB2_SET_INFO		cpu_to_le16(SMB2_SET_INFO_HE)
57 #define SMB2_OPLOCK_BREAK	cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
58 
59 #define SMB2_INTERNAL_CMD	cpu_to_le16(0xFFFF)
60 
61 #define NUMBER_OF_SMB2_COMMANDS	0x0013
62 
63 /*
64  * Size of the session key (crypto key encrypted with the password
65  */
66 #define SMB2_NTLMV2_SESSKEY_SIZE	16
67 #define SMB2_SIGNATURE_SIZE		16
68 #define SMB2_HMACSHA256_SIZE		32
69 #define SMB2_CMACAES_SIZE		16
70 #define SMB3_GCM128_CRYPTKEY_SIZE	16
71 #define SMB3_GCM256_CRYPTKEY_SIZE	32
72 
73 /*
74  * Size of the smb3 encryption/decryption keys
75  * This size is big enough to store any cipher key types.
76  */
77 #define SMB3_ENC_DEC_KEY_SIZE		32
78 
79 /*
80  * Size of the smb3 signing key
81  */
82 #define SMB3_SIGN_KEY_SIZE		16
83 
84 #define CIFS_CLIENT_CHALLENGE_SIZE	8
85 
86 /* Maximum buffer size value we can send with 1 credit */
87 #define SMB2_MAX_BUFFER_SIZE 65536
88 
89 /*
90  * The default wsize is 1M for SMB2 (and for some CIFS cases).
91  * find_get_pages seems to return a maximum of 256
92  * pages in a single call. With PAGE_SIZE == 4k, this means we can
93  * fill a single wsize request with a single call.
94  */
95 #define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
96 
97 /*
98  * SMB2 Header Definition
99  *
100  * "MBZ" :  Must be Zero
101  * "BB"  :  BugBug, Something to check/review/analyze later
102  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
103  *
104  */
105 
106 #define __SMB2_HEADER_STRUCTURE_SIZE	64
107 #define SMB2_HEADER_STRUCTURE_SIZE				\
108 	cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
109 
110 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
111 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
112 #define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
113 
114 /*
115  *	SMB2 flag definitions
116  */
117 #define SMB2_FLAGS_SERVER_TO_REDIR	cpu_to_le32(0x00000001)
118 #define SMB2_FLAGS_ASYNC_COMMAND	cpu_to_le32(0x00000002)
119 #define SMB2_FLAGS_RELATED_OPERATIONS	cpu_to_le32(0x00000004)
120 #define SMB2_FLAGS_SIGNED		cpu_to_le32(0x00000008)
121 #define SMB2_FLAGS_PRIORITY_MASK	cpu_to_le32(0x00000070) /* SMB3.1.1 */
122 #define SMB2_FLAGS_DFS_OPERATIONS	cpu_to_le32(0x10000000)
123 #define SMB2_FLAGS_REPLAY_OPERATION	cpu_to_le32(0x20000000) /* SMB3 & up */
124 
125 /*
126  *	Definitions for SMB2 Protocol Data Units (network frames)
127  *
128  *  See MS-SMB2.PDF specification for protocol details.
129  *  The Naming convention is the lower case version of the SMB2
130  *  command code name for the struct. Note that structures must be packed.
131  *
132  */
133 
134 /* See MS-SMB2 section 2.2.1 */
135 struct smb2_hdr {
136 	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
137 	__le16 StructureSize;	/* 64 */
138 	__le16 CreditCharge;	/* MBZ */
139 	__le32 Status;		/* Error from server */
140 	__le16 Command;
141 	__le16 CreditRequest;	/* CreditResponse */
142 	__le32 Flags;
143 	__le32 NextCommand;
144 	__le64 MessageId;
145 	union {
146 		struct {
147 			__le32 ProcessId;
148 			__le32  TreeId;
149 		} __packed SyncId;
150 		__le64  AsyncId;
151 	} __packed Id;
152 	__le64  SessionId;
153 	__u8   Signature[16];
154 } __packed;
155 
156 struct smb2_pdu {
157 	struct smb2_hdr hdr;
158 	__le16 StructureSize2; /* size of wct area (varies, request specific) */
159 } __packed;
160 
161 #define SMB2_ERROR_STRUCTURE_SIZE2	9
162 #define SMB2_ERROR_STRUCTURE_SIZE2_LE	cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)
163 
164 struct smb2_err_rsp {
165 	struct smb2_hdr hdr;
166 	__le16 StructureSize;
167 	__u8   ErrorContextCount;
168 	__u8   Reserved;
169 	__le32 ByteCount;  /* even if zero, at least one byte follows */
170 	__u8   ErrorData[1];  /* variable length */
171 } __packed;
172 
173 #define SMB3_AES_CCM_NONCE 11
174 #define SMB3_AES_GCM_NONCE 12
175 
176 /* Transform flags (for 3.0 dialect this flag indicates CCM */
177 #define TRANSFORM_FLAG_ENCRYPTED	0x0001
178 struct smb2_transform_hdr {
179 	__le32 ProtocolId;	/* 0xFD 'S' 'M' 'B' */
180 	__u8   Signature[16];
181 	__u8   Nonce[16];
182 	__le32 OriginalMessageSize;
183 	__u16  Reserved1;
184 	__le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
185 	__le64  SessionId;
186 } __packed;
187 
188 
189 /* See MS-SMB2 2.2.42 */
190 struct smb2_compression_transform_hdr_unchained {
191 	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */
192 	__le32 OriginalCompressedSegmentSize;
193 	__le16 CompressionAlgorithm;
194 	__le16 Flags;
195 	__le16 Length; /* if chained it is length, else offset */
196 } __packed;
197 
198 /* See MS-SMB2 2.2.42.1 */
199 #define SMB2_COMPRESSION_FLAG_NONE	0x0000
200 #define SMB2_COMPRESSION_FLAG_CHAINED	0x0001
201 
202 struct compression_payload_header {
203 	__le16	CompressionAlgorithm;
204 	__le16	Flags;
205 	__le32	Length; /* length of compressed playload including field below if present */
206 	/* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */
207 } __packed;
208 
209 /* See MS-SMB2 2.2.42.2 */
210 struct smb2_compression_transform_hdr_chained {
211 	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */
212 	__le32 OriginalCompressedSegmentSize;
213 	/* struct compression_payload_header[] */
214 } __packed;
215 
216 /* See MS-SMB2 2.2.42.2.2 */
217 struct compression_pattern_payload_v1 {
218 	__le16	Pattern;
219 	__le16	Reserved1;
220 	__le16	Reserved2;
221 	__le32	Repetitions;
222 } __packed;
223 
224 /* See MS-SMB2 section 2.2.9.2 */
225 /* Context Types */
226 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
227 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
228 
229 struct tree_connect_contexts {
230 	__le16 ContextType;
231 	__le16 DataLength;
232 	__le32 Reserved;
233 	__u8   Data[];
234 } __packed;
235 
236 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
237 struct smb3_blob_data {
238 	__le16 BlobSize;
239 	__u8   BlobData[];
240 } __packed;
241 
242 /* Valid values for Attr */
243 #define SE_GROUP_MANDATORY		0x00000001
244 #define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
245 #define SE_GROUP_ENABLED		0x00000004
246 #define SE_GROUP_OWNER			0x00000008
247 #define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
248 #define SE_GROUP_INTEGRITY		0x00000020
249 #define SE_GROUP_INTEGRITY_ENABLED	0x00000040
250 #define SE_GROUP_RESOURCE		0x20000000
251 #define SE_GROUP_LOGON_ID		0xC0000000
252 
253 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
254 
255 struct sid_array_data {
256 	__le16 SidAttrCount;
257 	/* SidAttrList - array of sid_attr_data structs */
258 } __packed;
259 
260 struct luid_attr_data {
261 
262 } __packed;
263 
264 /*
265  * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
266  * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
267  */
268 
269 struct privilege_array_data {
270 	__le16 PrivilegeCount;
271 	/* array of privilege_data structs */
272 } __packed;
273 
274 struct remoted_identity_tcon_context {
275 	__le16 TicketType; /* must be 0x0001 */
276 	__le16 TicketSize; /* total size of this struct */
277 	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
278 	__le16 UserName; /* offset to null terminated Unicode username string */
279 	__le16 Domain; /* offset to null terminated Unicode domain name */
280 	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
281 	__le16 RestrictedGroups; /* similar to above */
282 	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
283 	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
284 	__le16 Owner; /* offset to BLOB_DATA struct */
285 	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
286 	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
287 	__le16 UserClaims; /* offset to BLOB_DATA struct */
288 	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
289 	__u8   TicketInfo[]; /* variable length buf - remoted identity data */
290 } __packed;
291 
292 struct smb2_tree_connect_req_extension {
293 	__le32 TreeConnectContextOffset;
294 	__le16 TreeConnectContextCount;
295 	__u8  Reserved[10];
296 	__u8  PathName[]; /* variable sized array */
297 	/* followed by array of TreeConnectContexts */
298 } __packed;
299 
300 /* Flags/Reserved for SMB3.1.1 */
301 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
302 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
303 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
304 
305 struct smb2_tree_connect_req {
306 	struct smb2_hdr hdr;
307 	__le16 StructureSize;	/* Must be 9 */
308 	__le16 Flags;		/* Flags in SMB3.1.1 */
309 	__le16 PathOffset;
310 	__le16 PathLength;
311 	__u8   Buffer[1];	/* variable length */
312 } __packed;
313 
314 /* Possible ShareType values */
315 #define SMB2_SHARE_TYPE_DISK	0x01
316 #define SMB2_SHARE_TYPE_PIPE	0x02
317 #define	SMB2_SHARE_TYPE_PRINT	0x03
318 
319 /*
320  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
321  * must be set (any of the remaining, SHI1005, flags may be set individually
322  * or in combination.
323  */
324 #define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
325 #define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
326 #define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
327 #define SMB2_SHAREFLAG_NO_CACHING			0x00000030
328 #define SHI1005_FLAGS_DFS				0x00000001
329 #define SHI1005_FLAGS_DFS_ROOT				0x00000002
330 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS		0x00000100
331 #define SHI1005_FLAGS_FORCE_SHARED_DELETE		0x00000200
332 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING		0x00000400
333 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
334 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK		0x00001000
335 #define SHI1005_FLAGS_ENABLE_HASH_V1			0x00002000
336 #define SHI1005_FLAGS_ENABLE_HASH_V2			0x00004000
337 #define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
338 #define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
339 #define SMB2_SHAREFLAG_COMPRESS_DATA			0x00100000 /* 3.1.1 */
340 #define SHI1005_FLAGS_ALL				0x0014FF33
341 
342 /* Possible share capabilities */
343 #define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
344 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
345 #define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
346 #define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
347 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
348 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
349 
350 struct smb2_tree_connect_rsp {
351 	struct smb2_hdr hdr;
352 	__le16 StructureSize;	/* Must be 16 */
353 	__u8   ShareType;	/* see below */
354 	__u8   Reserved;
355 	__le32 ShareFlags;	/* see below */
356 	__le32 Capabilities;	/* see below */
357 	__le32 MaximalAccess;
358 } __packed;
359 
360 struct smb2_tree_disconnect_req {
361 	struct smb2_hdr hdr;
362 	__le16 StructureSize;	/* Must be 4 */
363 	__le16 Reserved;
364 } __packed;
365 
366 struct smb2_tree_disconnect_rsp {
367 	struct smb2_hdr hdr;
368 	__le16 StructureSize;	/* Must be 4 */
369 	__le16 Reserved;
370 } __packed;
371 
372 
373 /*
374  * SMB2_NEGOTIATE_PROTOCOL  See MS-SMB2 section 2.2.3
375  */
376 /* SecurityMode flags */
377 #define	SMB2_NEGOTIATE_SIGNING_ENABLED     0x0001
378 #define	SMB2_NEGOTIATE_SIGNING_ENABLED_LE  cpu_to_le16(0x0001)
379 #define SMB2_NEGOTIATE_SIGNING_REQUIRED	   0x0002
380 #define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002)
381 #define SMB2_SEC_MODE_FLAGS_ALL            0x0003
382 
383 /* Capabilities flags */
384 #define SMB2_GLOBAL_CAP_DFS		0x00000001
385 #define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
386 #define SMB2_GLOBAL_CAP_LARGE_MTU	0X00000004 /* Resp only New to SMB2.1 */
387 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
388 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
389 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
390 #define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
391 /* Internal types */
392 #define SMB2_NT_FIND			0x00100000
393 #define SMB2_LARGE_FILES		0x00200000
394 
395 #define SMB2_CLIENT_GUID_SIZE		16
396 #define SMB2_CREATE_GUID_SIZE		16
397 
398 /* Dialects */
399 #define SMB10_PROT_ID  0x0000 /* local only, not sent on wire w/CIFS negprot */
400 #define SMB20_PROT_ID  0x0202
401 #define SMB21_PROT_ID  0x0210
402 #define SMB2X_PROT_ID  0x02FF
403 #define SMB30_PROT_ID  0x0300
404 #define SMB302_PROT_ID 0x0302
405 #define SMB311_PROT_ID 0x0311
406 #define BAD_PROT_ID    0xFFFF
407 
408 #define SMB311_SALT_SIZE			32
409 /* Hash Algorithm Types */
410 #define SMB2_PREAUTH_INTEGRITY_SHA512	cpu_to_le16(0x0001)
411 #define SMB2_PREAUTH_HASH_SIZE 64
412 
413 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
414 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES	cpu_to_le16(1)
415 #define SMB2_ENCRYPTION_CAPABILITIES		cpu_to_le16(2)
416 #define SMB2_COMPRESSION_CAPABILITIES		cpu_to_le16(3)
417 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID	cpu_to_le16(5)
418 #define SMB2_TRANSPORT_CAPABILITIES		cpu_to_le16(6)
419 #define SMB2_RDMA_TRANSFORM_CAPABILITIES	cpu_to_le16(7)
420 #define SMB2_SIGNING_CAPABILITIES		cpu_to_le16(8)
421 #define SMB2_POSIX_EXTENSIONS_AVAILABLE		cpu_to_le16(0x100)
422 
423 struct smb2_neg_context {
424 	__le16	ContextType;
425 	__le16	DataLength;
426 	__le32	Reserved;
427 	/* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */
428 } __packed;
429 
430 /*
431  * SaltLength that the server send can be zero, so the only three required
432  * fields (all __le16) end up six bytes total, so the minimum context data len
433  * in the response is six bytes which accounts for
434  *
435  *      HashAlgorithmCount, SaltLength, and 1 HashAlgorithm.
436  */
437 #define MIN_PREAUTH_CTXT_DATA_LEN 6
438 
439 struct smb2_preauth_neg_context {
440 	__le16	ContextType; /* 1 */
441 	__le16	DataLength;
442 	__le32	Reserved;
443 	__le16	HashAlgorithmCount; /* 1 */
444 	__le16	SaltLength;
445 	__le16	HashAlgorithms; /* HashAlgorithms[0] since only one defined */
446 	__u8	Salt[SMB311_SALT_SIZE];
447 } __packed;
448 
449 /* Encryption Algorithms Ciphers */
450 #define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
451 #define SMB2_ENCRYPTION_AES128_GCM	cpu_to_le16(0x0002)
452 #define SMB2_ENCRYPTION_AES256_CCM      cpu_to_le16(0x0003)
453 #define SMB2_ENCRYPTION_AES256_GCM      cpu_to_le16(0x0004)
454 
455 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
456 #define MIN_ENCRYPT_CTXT_DATA_LEN	4
457 struct smb2_encryption_neg_context {
458 	__le16	ContextType; /* 2 */
459 	__le16	DataLength;
460 	__le32	Reserved;
461 	/* CipherCount usally 2, but can be 3 when AES256-GCM enabled */
462 	__le16	CipherCount; /* AES128-GCM and AES128-CCM by default */
463 	__le16	Ciphers[];
464 } __packed;
465 
466 /* See MS-SMB2 2.2.3.1.3 */
467 #define SMB3_COMPRESS_NONE	cpu_to_le16(0x0000)
468 #define SMB3_COMPRESS_LZNT1	cpu_to_le16(0x0001)
469 #define SMB3_COMPRESS_LZ77	cpu_to_le16(0x0002)
470 #define SMB3_COMPRESS_LZ77_HUFF	cpu_to_le16(0x0003)
471 /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
472 #define SMB3_COMPRESS_PATTERN	cpu_to_le16(0x0004) /* Pattern_V1 */
473 
474 /* Compression Flags */
475 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE		cpu_to_le32(0x00000000)
476 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED	cpu_to_le32(0x00000001)
477 
478 struct smb2_compression_capabilities_context {
479 	__le16	ContextType; /* 3 */
480 	__le16  DataLength;
481 	__le32	Reserved;
482 	__le16	CompressionAlgorithmCount;
483 	__le16	Padding;
484 	__le32	Flags;
485 	__le16	CompressionAlgorithms[3];
486 	__u16	Pad;  /* Some servers require pad to DataLen multiple of 8 */
487 	/* Check if pad needed */
488 } __packed;
489 
490 /*
491  * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
492  * Its struct simply contains NetName, an array of Unicode characters
493  */
494 struct smb2_netname_neg_context {
495 	__le16	ContextType; /* 5 */
496 	__le16	DataLength;
497 	__le32	Reserved;
498 	__le16	NetName[]; /* hostname of target converted to UCS-2 */
499 } __packed;
500 
501 /*
502  * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
503  * and 2.2.4.1.5
504  */
505 
506 /* Flags */
507 #define SMB2_ACCEPT_TRANSPORT_LEVEL_SECURITY	0x00000001
508 
509 struct smb2_transport_capabilities_context {
510 	__le16	ContextType; /* 6 */
511 	__le16  DataLength;
512 	__u32	Reserved;
513 	__le32	Flags;
514 	__u32	Pad;
515 } __packed;
516 
517 /*
518  * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
519  * and 2.2.4.1.6
520  */
521 
522 /* RDMA Transform IDs */
523 #define SMB2_RDMA_TRANSFORM_NONE	0x0000
524 #define SMB2_RDMA_TRANSFORM_ENCRYPTION	0x0001
525 #define SMB2_RDMA_TRANSFORM_SIGNING	0x0002
526 
527 struct smb2_rdma_transform_capabilities_context {
528 	__le16	ContextType; /* 7 */
529 	__le16  DataLength;
530 	__u32	Reserved;
531 	__le16	TransformCount;
532 	__u16	Reserved1;
533 	__u32	Reserved2;
534 	__le16	RDMATransformIds[];
535 } __packed;
536 
537 /*
538  * For signing capabilities context see MS-SMB2 2.2.3.1.7
539  * and 2.2.4.1.7
540  */
541 
542 /* Signing algorithms */
543 #define SIGNING_ALG_HMAC_SHA256    0
544 #define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0)
545 #define SIGNING_ALG_AES_CMAC       1
546 #define SIGNING_ALG_AES_CMAC_LE    cpu_to_le16(1)
547 #define SIGNING_ALG_AES_GMAC       2
548 #define SIGNING_ALG_AES_GMAC_LE    cpu_to_le16(2)
549 
550 struct smb2_signing_capabilities {
551 	__le16	ContextType; /* 8 */
552 	__le16	DataLength;
553 	__le32	Reserved;
554 	__le16	SigningAlgorithmCount;
555 	__le16	SigningAlgorithms[];
556 	/*  Followed by padding to 8 byte boundary (required by some servers) */
557 } __packed;
558 
559 #define POSIX_CTXT_DATA_LEN	16
560 struct smb2_posix_neg_context {
561 	__le16	ContextType; /* 0x100 */
562 	__le16	DataLength;
563 	__le32	Reserved;
564 	__u8	Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
565 } __packed;
566 
567 struct smb2_negotiate_req {
568 	struct smb2_hdr hdr;
569 	__le16 StructureSize; /* Must be 36 */
570 	__le16 DialectCount;
571 	__le16 SecurityMode;
572 	__le16 Reserved;	/* MBZ */
573 	__le32 Capabilities;
574 	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
575 	/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
576 	__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
577 	__le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
578 	__le16 Reserved2;
579 	__le16 Dialects[];
580 } __packed;
581 
582 struct smb2_negotiate_rsp {
583 	struct smb2_hdr hdr;
584 	__le16 StructureSize;	/* Must be 65 */
585 	__le16 SecurityMode;
586 	__le16 DialectRevision;
587 	__le16 NegotiateContextCount;	/* Prior to SMB3.1.1 was Reserved & MBZ */
588 	__u8   ServerGUID[16];
589 	__le32 Capabilities;
590 	__le32 MaxTransactSize;
591 	__le32 MaxReadSize;
592 	__le32 MaxWriteSize;
593 	__le64 SystemTime;	/* MBZ */
594 	__le64 ServerStartTime;
595 	__le16 SecurityBufferOffset;
596 	__le16 SecurityBufferLength;
597 	__le32 NegotiateContextOffset;	/* Pre:SMB3.1.1 was reserved/ignored */
598 	__u8   Buffer[1];	/* variable length GSS security buffer */
599 } __packed;
600 
601 
602 /*
603  * SMB2_SESSION_SETUP  See MS-SMB2 section 2.2.5
604  */
605 /* Flags */
606 #define SMB2_SESSION_REQ_FLAG_BINDING		0x01
607 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA	0x04
608 
609 struct smb2_sess_setup_req {
610 	struct smb2_hdr hdr;
611 	__le16 StructureSize; /* Must be 25 */
612 	__u8   Flags;
613 	__u8   SecurityMode;
614 	__le32 Capabilities;
615 	__le32 Channel;
616 	__le16 SecurityBufferOffset;
617 	__le16 SecurityBufferLength;
618 	__le64 PreviousSessionId;
619 	__u8   Buffer[1];	/* variable length GSS security buffer */
620 } __packed;
621 
622 /* Currently defined SessionFlags */
623 #define SMB2_SESSION_FLAG_IS_GUEST        0x0001
624 #define SMB2_SESSION_FLAG_IS_GUEST_LE     cpu_to_le16(0x0001)
625 #define SMB2_SESSION_FLAG_IS_NULL         0x0002
626 #define SMB2_SESSION_FLAG_IS_NULL_LE      cpu_to_le16(0x0002)
627 #define SMB2_SESSION_FLAG_ENCRYPT_DATA    0x0004
628 #define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
629 
630 struct smb2_sess_setup_rsp {
631 	struct smb2_hdr hdr;
632 	__le16 StructureSize; /* Must be 9 */
633 	__le16 SessionFlags;
634 	__le16 SecurityBufferOffset;
635 	__le16 SecurityBufferLength;
636 	__u8   Buffer[1];	/* variable length GSS security buffer */
637 } __packed;
638 
639 
640 /*
641  * SMB2_LOGOFF  See MS-SMB2 section 2.2.7
642  */
643 struct smb2_logoff_req {
644 	struct smb2_hdr hdr;
645 	__le16 StructureSize;	/* Must be 4 */
646 	__le16 Reserved;
647 } __packed;
648 
649 struct smb2_logoff_rsp {
650 	struct smb2_hdr hdr;
651 	__le16 StructureSize;	/* Must be 4 */
652 	__le16 Reserved;
653 } __packed;
654 
655 
656 /*
657  * SMB2_CLOSE  See MS-SMB2 section 2.2.15
658  */
659 /* Currently defined values for close flags */
660 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
661 struct smb2_close_req {
662 	struct smb2_hdr hdr;
663 	__le16 StructureSize;	/* Must be 24 */
664 	__le16 Flags;
665 	__le32 Reserved;
666 	__u64  PersistentFileId; /* opaque endianness */
667 	__u64  VolatileFileId; /* opaque endianness */
668 } __packed;
669 
670 /*
671  * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
672  */
673 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
674 
675 struct smb2_close_rsp {
676 	struct smb2_hdr hdr;
677 	__le16 StructureSize; /* 60 */
678 	__le16 Flags;
679 	__le32 Reserved;
680 	__le64 CreationTime;
681 	__le64 LastAccessTime;
682 	__le64 LastWriteTime;
683 	__le64 ChangeTime;
684 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
685 	__le64 EndOfFile;
686 	__le32 Attributes;
687 } __packed;
688 
689 
690 /*
691  * SMB2_READ  See MS-SMB2 section 2.2.19
692  */
693 /* For read request Flags field below, following flag is defined for SMB3.02 */
694 #define SMB2_READFLAG_READ_UNBUFFERED	0x01
695 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
696 
697 /* Channel field for read and write: exactly one of following flags can be set*/
698 #define SMB2_CHANNEL_NONE               cpu_to_le32(0x00000000)
699 #define SMB2_CHANNEL_RDMA_V1            cpu_to_le32(0x00000001)
700 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
701 #define SMB2_CHANNEL_RDMA_TRANSFORM     cpu_to_le32(0x00000003)
702 
703 /* SMB2 read request without RFC1001 length at the beginning */
704 struct smb2_read_req {
705 	struct smb2_hdr hdr;
706 	__le16 StructureSize; /* Must be 49 */
707 	__u8   Padding; /* offset from start of SMB2 header to place read */
708 	__u8   Flags; /* MBZ unless SMB3.02 or later */
709 	__le32 Length;
710 	__le64 Offset;
711 	__u64  PersistentFileId;
712 	__u64  VolatileFileId;
713 	__le32 MinimumCount;
714 	__le32 Channel; /* MBZ except for SMB3 or later */
715 	__le32 RemainingBytes;
716 	__le16 ReadChannelInfoOffset;
717 	__le16 ReadChannelInfoLength;
718 	__u8   Buffer[1];
719 } __packed;
720 
721 /* Read flags */
722 #define SMB2_READFLAG_RESPONSE_NONE            cpu_to_le32(0x00000000)
723 #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM  cpu_to_le32(0x00000001)
724 
725 struct smb2_read_rsp {
726 	struct smb2_hdr hdr;
727 	__le16 StructureSize; /* Must be 17 */
728 	__u8   DataOffset;
729 	__u8   Reserved;
730 	__le32 DataLength;
731 	__le32 DataRemaining;
732 	__le32 Flags;
733 	__u8   Buffer[1];
734 } __packed;
735 
736 
737 /*
738  * SMB2_WRITE  See MS-SMB2 section 2.2.21
739  */
740 /* For write request Flags field below the following flags are defined: */
741 #define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
742 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */
743 
744 struct smb2_write_req {
745 	struct smb2_hdr hdr;
746 	__le16 StructureSize; /* Must be 49 */
747 	__le16 DataOffset; /* offset from start of SMB2 header to write data */
748 	__le32 Length;
749 	__le64 Offset;
750 	__u64  PersistentFileId; /* opaque endianness */
751 	__u64  VolatileFileId; /* opaque endianness */
752 	__le32 Channel; /* MBZ unless SMB3.02 or later */
753 	__le32 RemainingBytes;
754 	__le16 WriteChannelInfoOffset;
755 	__le16 WriteChannelInfoLength;
756 	__le32 Flags;
757 	__u8   Buffer[1];
758 } __packed;
759 
760 struct smb2_write_rsp {
761 	struct smb2_hdr hdr;
762 	__le16 StructureSize; /* Must be 17 */
763 	__u8   DataOffset;
764 	__u8   Reserved;
765 	__le32 DataLength;
766 	__le32 DataRemaining;
767 	__u32  Reserved2;
768 	__u8   Buffer[1];
769 } __packed;
770 
771 
772 /*
773  * SMB2_FLUSH  See MS-SMB2 section 2.2.17
774  */
775 struct smb2_flush_req {
776 	struct smb2_hdr hdr;
777 	__le16 StructureSize;	/* Must be 24 */
778 	__le16 Reserved1;
779 	__le32 Reserved2;
780 	__u64  PersistentFileId;
781 	__u64  VolatileFileId;
782 } __packed;
783 
784 struct smb2_flush_rsp {
785 	struct smb2_hdr hdr;
786 	__le16 StructureSize;
787 	__le16 Reserved;
788 } __packed;
789 
790 #define SMB2_LOCKFLAG_SHARED		0x0001
791 #define SMB2_LOCKFLAG_EXCLUSIVE		0x0002
792 #define SMB2_LOCKFLAG_UNLOCK		0x0004
793 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
794 #define SMB2_LOCKFLAG_MASK		0x0007
795 
796 struct smb2_lock_element {
797 	__le64 Offset;
798 	__le64 Length;
799 	__le32 Flags;
800 	__le32 Reserved;
801 } __packed;
802 
803 struct smb2_lock_req {
804 	struct smb2_hdr hdr;
805 	__le16 StructureSize; /* Must be 48 */
806 	__le16 LockCount;
807 	/*
808 	 * The least significant four bits are the index, the other 28 bits are
809 	 * the lock sequence number (0 to 64). See MS-SMB2 2.2.26
810 	 */
811 	__le32 LockSequenceNumber;
812 	__u64  PersistentFileId;
813 	__u64  VolatileFileId;
814 	/* Followed by at least one */
815 	struct smb2_lock_element locks[1];
816 } __packed;
817 
818 struct smb2_lock_rsp {
819 	struct smb2_hdr hdr;
820 	__le16 StructureSize; /* Must be 4 */
821 	__le16 Reserved;
822 } __packed;
823 
824 struct smb2_echo_req {
825 	struct smb2_hdr hdr;
826 	__le16 StructureSize;	/* Must be 4 */
827 	__u16  Reserved;
828 } __packed;
829 
830 struct smb2_echo_rsp {
831 	struct smb2_hdr hdr;
832 	__le16 StructureSize;	/* Must be 4 */
833 	__u16  Reserved;
834 } __packed;
835 
836 /*
837  * Valid FileInformation classes for query directory
838  *
839  * Note that these are a subset of the (file) QUERY_INFO levels defined
840  * later in this file (but since QUERY_DIRECTORY uses equivalent numbers
841  * we do not redefine them here)
842  *
843  * FileDirectoryInfomation		0x01
844  * FileFullDirectoryInformation		0x02
845  * FileIdFullDirectoryInformation	0x26
846  * FileBothDirectoryInformation		0x03
847  * FileIdBothDirectoryInformation	0x25
848  * FileNamesInformation			0x0C
849  * FileIdExtdDirectoryInformation	0x3C
850  */
851 
852 /* search (query_directory) Flags field */
853 #define SMB2_RESTART_SCANS		0x01
854 #define SMB2_RETURN_SINGLE_ENTRY	0x02
855 #define SMB2_INDEX_SPECIFIED		0x04
856 #define SMB2_REOPEN			0x10
857 
858 struct smb2_query_directory_req {
859 	struct smb2_hdr hdr;
860 	__le16 StructureSize; /* Must be 33 */
861 	__u8   FileInformationClass;
862 	__u8   Flags;
863 	__le32 FileIndex;
864 	__u64  PersistentFileId;
865 	__u64  VolatileFileId;
866 	__le16 FileNameOffset;
867 	__le16 FileNameLength;
868 	__le32 OutputBufferLength;
869 	__u8   Buffer[1];
870 } __packed;
871 
872 struct smb2_query_directory_rsp {
873 	struct smb2_hdr hdr;
874 	__le16 StructureSize; /* Must be 9 */
875 	__le16 OutputBufferOffset;
876 	__le32 OutputBufferLength;
877 	__u8   Buffer[1];
878 } __packed;
879 
880 /*
881  * Maximum number of iovs we need for a set-info request.
882  * The largest one is rename/hardlink
883  * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
884  * [1] : path
885  * [2] : compound padding
886  */
887 #define SMB2_SET_INFO_IOV_SIZE 3
888 
889 struct smb2_set_info_req {
890 	struct smb2_hdr hdr;
891 	__le16 StructureSize; /* Must be 33 */
892 	__u8   InfoType;
893 	__u8   FileInfoClass;
894 	__le32 BufferLength;
895 	__le16 BufferOffset;
896 	__u16  Reserved;
897 	__le32 AdditionalInformation;
898 	__u64  PersistentFileId;
899 	__u64  VolatileFileId;
900 	__u8   Buffer[1];
901 } __packed;
902 
903 struct smb2_set_info_rsp {
904 	struct smb2_hdr hdr;
905 	__le16 StructureSize; /* Must be 2 */
906 } __packed;
907 
908 /*
909  * SMB2_NOTIFY  See MS-SMB2 section 2.2.35
910  */
911 /* notify flags */
912 #define SMB2_WATCH_TREE			0x0001
913 
914 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
915 #define FILE_NOTIFY_CHANGE_FILE_NAME		0x00000001
916 #define FILE_NOTIFY_CHANGE_DIR_NAME		0x00000002
917 #define FILE_NOTIFY_CHANGE_ATTRIBUTES		0x00000004
918 #define FILE_NOTIFY_CHANGE_SIZE			0x00000008
919 #define FILE_NOTIFY_CHANGE_LAST_WRITE		0x00000010
920 #define FILE_NOTIFY_CHANGE_LAST_ACCESS		0x00000020
921 #define FILE_NOTIFY_CHANGE_CREATION		0x00000040
922 #define FILE_NOTIFY_CHANGE_EA			0x00000080
923 #define FILE_NOTIFY_CHANGE_SECURITY		0x00000100
924 #define FILE_NOTIFY_CHANGE_STREAM_NAME		0x00000200
925 #define FILE_NOTIFY_CHANGE_STREAM_SIZE		0x00000400
926 #define FILE_NOTIFY_CHANGE_STREAM_WRITE		0x00000800
927 
928 /* SMB2 Notify Action Flags */
929 #define FILE_ACTION_ADDED                       0x00000001
930 #define FILE_ACTION_REMOVED                     0x00000002
931 #define FILE_ACTION_MODIFIED                    0x00000003
932 #define FILE_ACTION_RENAMED_OLD_NAME            0x00000004
933 #define FILE_ACTION_RENAMED_NEW_NAME            0x00000005
934 #define FILE_ACTION_ADDED_STREAM                0x00000006
935 #define FILE_ACTION_REMOVED_STREAM              0x00000007
936 #define FILE_ACTION_MODIFIED_STREAM             0x00000008
937 #define FILE_ACTION_REMOVED_BY_DELETE           0x00000009
938 
939 struct smb2_change_notify_req {
940 	struct smb2_hdr hdr;
941 	__le16	StructureSize;
942 	__le16	Flags;
943 	__le32	OutputBufferLength;
944 	__u64	PersistentFileId; /* opaque endianness */
945 	__u64	VolatileFileId; /* opaque endianness */
946 	__le32	CompletionFilter;
947 	__u32	Reserved;
948 } __packed;
949 
950 struct smb2_change_notify_rsp {
951 	struct smb2_hdr hdr;
952 	__le16	StructureSize;  /* Must be 9 */
953 	__le16	OutputBufferOffset;
954 	__le32	OutputBufferLength;
955 	__u8	Buffer[1]; /* array of file notify structs */
956 } __packed;
957 
958 
959 /*
960  * SMB2_CREATE  See MS-SMB2 section 2.2.13
961  */
962 /* Oplock levels */
963 #define SMB2_OPLOCK_LEVEL_NONE		0x00
964 #define SMB2_OPLOCK_LEVEL_II		0x01
965 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
966 #define SMB2_OPLOCK_LEVEL_BATCH		0x09
967 #define SMB2_OPLOCK_LEVEL_LEASE		0xFF
968 /* Non-spec internal type */
969 #define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99
970 
971 /* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
972 #define IL_ANONYMOUS		cpu_to_le32(0x00000000)
973 #define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
974 #define IL_IMPERSONATION	cpu_to_le32(0x00000002)
975 #define IL_DELEGATE		cpu_to_le32(0x00000003)
976 
977 /* File Attrubutes */
978 #define FILE_ATTRIBUTE_READONLY			0x00000001
979 #define FILE_ATTRIBUTE_HIDDEN			0x00000002
980 #define FILE_ATTRIBUTE_SYSTEM			0x00000004
981 #define FILE_ATTRIBUTE_DIRECTORY		0x00000010
982 #define FILE_ATTRIBUTE_ARCHIVE			0x00000020
983 #define FILE_ATTRIBUTE_NORMAL			0x00000080
984 #define FILE_ATTRIBUTE_TEMPORARY		0x00000100
985 #define FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
986 #define FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
987 #define FILE_ATTRIBUTE_COMPRESSED		0x00000800
988 #define FILE_ATTRIBUTE_OFFLINE			0x00001000
989 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
990 #define FILE_ATTRIBUTE_ENCRYPTED		0x00004000
991 #define FILE_ATTRIBUTE_INTEGRITY_STREAM		0x00008000
992 #define FILE_ATTRIBUTE_NO_SCRUB_DATA		0x00020000
993 #define FILE_ATTRIBUTE__MASK			0x00007FB7
994 
995 #define FILE_ATTRIBUTE_READONLY_LE              cpu_to_le32(0x00000001)
996 #define FILE_ATTRIBUTE_HIDDEN_LE		cpu_to_le32(0x00000002)
997 #define FILE_ATTRIBUTE_SYSTEM_LE		cpu_to_le32(0x00000004)
998 #define FILE_ATTRIBUTE_DIRECTORY_LE		cpu_to_le32(0x00000010)
999 #define FILE_ATTRIBUTE_ARCHIVE_LE		cpu_to_le32(0x00000020)
1000 #define FILE_ATTRIBUTE_NORMAL_LE		cpu_to_le32(0x00000080)
1001 #define FILE_ATTRIBUTE_TEMPORARY_LE		cpu_to_le32(0x00000100)
1002 #define FILE_ATTRIBUTE_SPARSE_FILE_LE		cpu_to_le32(0x00000200)
1003 #define FILE_ATTRIBUTE_REPARSE_POINT_LE		cpu_to_le32(0x00000400)
1004 #define FILE_ATTRIBUTE_COMPRESSED_LE		cpu_to_le32(0x00000800)
1005 #define FILE_ATTRIBUTE_OFFLINE_LE		cpu_to_le32(0x00001000)
1006 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE	cpu_to_le32(0x00002000)
1007 #define FILE_ATTRIBUTE_ENCRYPTED_LE		cpu_to_le32(0x00004000)
1008 #define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE	cpu_to_le32(0x00008000)
1009 #define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE		cpu_to_le32(0x00020000)
1010 #define FILE_ATTRIBUTE_MASK_LE			cpu_to_le32(0x00007FB7)
1011 
1012 /* Desired Access Flags */
1013 #define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
1014 #define FILE_LIST_DIRECTORY_LE		cpu_to_le32(0x00000001)
1015 #define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
1016 #define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
1017 #define FILE_ADD_SUBDIRECTORY_LE	cpu_to_le32(0x00000004)
1018 #define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
1019 #define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
1020 #define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
1021 #define FILE_DELETE_CHILD_LE		cpu_to_le32(0x00000040)
1022 #define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
1023 #define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
1024 #define FILE_DELETE_LE			cpu_to_le32(0x00010000)
1025 #define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
1026 #define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
1027 #define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
1028 #define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
1029 #define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
1030 #define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
1031 #define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
1032 #define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
1033 #define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
1034 #define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)
1035 #define DESIRED_ACCESS_MASK             cpu_to_le32(0xF21F01FF)
1036 
1037 
1038 #define FILE_READ_DESIRED_ACCESS_LE     (FILE_READ_DATA_LE        |	\
1039 					 FILE_READ_EA_LE          |     \
1040 					 FILE_GENERIC_READ_LE)
1041 #define FILE_WRITE_DESIRE_ACCESS_LE     (FILE_WRITE_DATA_LE       |	\
1042 					 FILE_APPEND_DATA_LE      |	\
1043 					 FILE_WRITE_EA_LE         |	\
1044 					 FILE_WRITE_ATTRIBUTES_LE |	\
1045 					 FILE_GENERIC_WRITE_LE)
1046 
1047 /* ShareAccess Flags */
1048 #define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
1049 #define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
1050 #define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
1051 #define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)
1052 
1053 /* CreateDisposition Flags */
1054 #define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
1055 #define FILE_OPEN_LE			cpu_to_le32(0x00000001)
1056 #define FILE_CREATE_LE			cpu_to_le32(0x00000002)
1057 #define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
1058 #define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
1059 #define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)
1060 #define FILE_CREATE_MASK_LE             cpu_to_le32(0x00000007)
1061 
1062 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
1063 			| FILE_READ_ATTRIBUTES)
1064 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
1065 			| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
1066 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
1067 
1068 /* CreateOptions Flags */
1069 #define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
1070 /* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
1071 #define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
1072 #define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
1073 #define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
1074 #define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
1075 #define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
1076 #define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
1077 #define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
1078 #define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000)
1079 #define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
1080 #define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
1081 #define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
1082 #define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
1083 #define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
1084 #define CREATE_OPTIONS_MASK_LE          cpu_to_le32(0x00FFFFFF)
1085 
1086 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
1087 			| FILE_READ_ATTRIBUTES_LE)
1088 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
1089 			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
1090 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
1091 
1092 /* Create Context Values */
1093 #define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
1094 #define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
1095 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
1096 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
1097 #define SMB2_CREATE_ALLOCATION_SIZE		"AISi"
1098 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
1099 #define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
1100 #define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
1101 #define SMB2_CREATE_REQUEST_LEASE		"RqLs"
1102 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2	"DH2Q"
1103 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2	"DH2C"
1104 #define SMB2_CREATE_TAG_POSIX          "\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
1105 
1106 /* Flag (SMB3 open response) values */
1107 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
1108 
1109 struct create_context {
1110 	__le32 Next;
1111 	__le16 NameOffset;
1112 	__le16 NameLength;
1113 	__le16 Reserved;
1114 	__le16 DataOffset;
1115 	__le32 DataLength;
1116 	__u8 Buffer[];
1117 } __packed;
1118 
1119 struct smb2_create_req {
1120 	struct smb2_hdr hdr;
1121 	__le16 StructureSize;	/* Must be 57 */
1122 	__u8   SecurityFlags;
1123 	__u8   RequestedOplockLevel;
1124 	__le32 ImpersonationLevel;
1125 	__le64 SmbCreateFlags;
1126 	__le64 Reserved;
1127 	__le32 DesiredAccess;
1128 	__le32 FileAttributes;
1129 	__le32 ShareAccess;
1130 	__le32 CreateDisposition;
1131 	__le32 CreateOptions;
1132 	__le16 NameOffset;
1133 	__le16 NameLength;
1134 	__le32 CreateContextsOffset;
1135 	__le32 CreateContextsLength;
1136 	__u8   Buffer[];
1137 } __packed;
1138 
1139 struct smb2_create_rsp {
1140 	struct smb2_hdr hdr;
1141 	__le16 StructureSize;	/* Must be 89 */
1142 	__u8   OplockLevel;
1143 	__u8   Flags;  /* 0x01 if reparse point */
1144 	__le32 CreateAction;
1145 	__le64 CreationTime;
1146 	__le64 LastAccessTime;
1147 	__le64 LastWriteTime;
1148 	__le64 ChangeTime;
1149 	__le64 AllocationSize;
1150 	__le64 EndofFile;
1151 	__le32 FileAttributes;
1152 	__le32 Reserved2;
1153 	__u64  PersistentFileId;
1154 	__u64  VolatileFileId;
1155 	__le32 CreateContextsOffset;
1156 	__le32 CreateContextsLength;
1157 	__u8   Buffer[1];
1158 } __packed;
1159 
1160 struct create_posix {
1161 	struct create_context ccontext;
1162 	__u8    Name[16];
1163 	__le32  Mode;
1164 	__u32   Reserved;
1165 } __packed;
1166 
1167 #define SMB2_LEASE_NONE_LE			cpu_to_le32(0x00)
1168 #define SMB2_LEASE_READ_CACHING_LE		cpu_to_le32(0x01)
1169 #define SMB2_LEASE_HANDLE_CACHING_LE		cpu_to_le32(0x02)
1170 #define SMB2_LEASE_WRITE_CACHING_LE		cpu_to_le32(0x04)
1171 
1172 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE	cpu_to_le32(0x02)
1173 
1174 #define SMB2_LEASE_KEY_SIZE			16
1175 
1176 struct lease_context {
1177 	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1178 	__le32 LeaseState;
1179 	__le32 LeaseFlags;
1180 	__le64 LeaseDuration;
1181 } __packed;
1182 
1183 struct lease_context_v2 {
1184 	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1185 	__le32 LeaseState;
1186 	__le32 LeaseFlags;
1187 	__le64 LeaseDuration;
1188 	__u8 ParentLeaseKey[SMB2_LEASE_KEY_SIZE];
1189 	__le16 Epoch;
1190 	__le16 Reserved;
1191 } __packed;
1192 
1193 struct create_lease {
1194 	struct create_context ccontext;
1195 	__u8   Name[8];
1196 	struct lease_context lcontext;
1197 } __packed;
1198 
1199 struct create_lease_v2 {
1200 	struct create_context ccontext;
1201 	__u8   Name[8];
1202 	struct lease_context_v2 lcontext;
1203 	__u8   Pad[4];
1204 } __packed;
1205 
1206 /* See MS-SMB2 2.2.31 and 2.2.32 */
1207 struct smb2_ioctl_req {
1208 	struct smb2_hdr hdr;
1209 	__le16 StructureSize; /* Must be 57 */
1210 	__le16 Reserved; /* offset from start of SMB2 header to write data */
1211 	__le32 CtlCode;
1212 	__u64  PersistentFileId;
1213 	__u64  VolatileFileId;
1214 	__le32 InputOffset; /* Reserved MBZ */
1215 	__le32 InputCount;
1216 	__le32 MaxInputResponse;
1217 	__le32 OutputOffset;
1218 	__le32 OutputCount;
1219 	__le32 MaxOutputResponse;
1220 	__le32 Flags;
1221 	__le32 Reserved2;
1222 	__u8   Buffer[];
1223 } __packed;
1224 
1225 struct smb2_ioctl_rsp {
1226 	struct smb2_hdr hdr;
1227 	__le16 StructureSize; /* Must be 49 */
1228 	__le16 Reserved;
1229 	__le32 CtlCode;
1230 	__u64  PersistentFileId;
1231 	__u64  VolatileFileId;
1232 	__le32 InputOffset; /* Reserved MBZ */
1233 	__le32 InputCount;
1234 	__le32 OutputOffset;
1235 	__le32 OutputCount;
1236 	__le32 Flags;
1237 	__le32 Reserved2;
1238 	__u8   Buffer[];
1239 } __packed;
1240 
1241 /* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
1242 struct file_zero_data_information {
1243 	__le64	FileOffset;
1244 	__le64	BeyondFinalZero;
1245 } __packed;
1246 
1247 /* See MS-FSCC 2.3.7 */
1248 struct duplicate_extents_to_file {
1249 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1250 	__u64 VolatileFileHandle;
1251 	__le64 SourceFileOffset;
1252 	__le64 TargetFileOffset;
1253 	__le64 ByteCount;  /* Bytes to be copied */
1254 } __packed;
1255 
1256 /* See MS-FSCC 2.3.8 */
1257 #define DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC	0x00000001
1258 struct duplicate_extents_to_file_ex {
1259 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1260 	__u64 VolatileFileHandle;
1261 	__le64 SourceFileOffset;
1262 	__le64 TargetFileOffset;
1263 	__le64 ByteCount;  /* Bytes to be copied */
1264 	__le32 Flags;
1265 	__le32 Reserved;
1266 } __packed;
1267 
1268 
1269 /* See MS-FSCC 2.3.20 */
1270 struct fsctl_get_integrity_information_rsp {
1271 	__le16	ChecksumAlgorithm;
1272 	__le16	Reserved;
1273 	__le32	Flags;
1274 	__le32	ChecksumChunkSizeInBytes;
1275 	__le32	ClusterSizeInBytes;
1276 } __packed;
1277 
1278 /* See MS-FSCC 2.3.55 */
1279 struct fsctl_query_file_regions_req {
1280 	__le64	FileOffset;
1281 	__le64	Length;
1282 	__le32	DesiredUsage;
1283 	__le32	Reserved;
1284 } __packed;
1285 
1286 /* DesiredUsage flags see MS-FSCC 2.3.56.1 */
1287 #define FILE_USAGE_INVALID_RANGE	0x00000000
1288 #define FILE_USAGE_VALID_CACHED_DATA	0x00000001
1289 #define FILE_USAGE_NONCACHED_DATA	0x00000002
1290 
1291 struct file_region_info {
1292 	__le64	FileOffset;
1293 	__le64	Length;
1294 	__le32	DesiredUsage;
1295 	__le32	Reserved;
1296 } __packed;
1297 
1298 /* See MS-FSCC 2.3.56 */
1299 struct fsctl_query_file_region_rsp {
1300 	__le32 Flags;
1301 	__le32 TotalRegionEntryCount;
1302 	__le32 RegionEntryCount;
1303 	__u32  Reserved;
1304 	struct  file_region_info Regions[];
1305 } __packed;
1306 
1307 /* See MS-FSCC 2.3.58 */
1308 struct fsctl_query_on_disk_vol_info_rsp {
1309 	__le64	DirectoryCount;
1310 	__le64	FileCount;
1311 	__le16	FsFormatMajVersion;
1312 	__le16	FsFormatMinVersion;
1313 	__u8	FsFormatName[24];
1314 	__le64	FormatTime;
1315 	__le64	LastUpdateTime;
1316 	__u8	CopyrightInfo[68];
1317 	__u8	AbstractInfo[68];
1318 	__u8	FormatImplInfo[68];
1319 	__u8	LastModifyImplInfo[68];
1320 } __packed;
1321 
1322 /* See MS-FSCC 2.3.73 */
1323 struct fsctl_set_integrity_information_req {
1324 	__le16	ChecksumAlgorithm;
1325 	__le16	Reserved;
1326 	__le32	Flags;
1327 } __packed;
1328 
1329 /* See MS-FSCC 2.3.75 */
1330 struct fsctl_set_integrity_info_ex_req {
1331 	__u8	EnableIntegrity;
1332 	__u8	KeepState;
1333 	__u16	Reserved;
1334 	__le32	Flags;
1335 	__u8	Version;
1336 	__u8	Reserved2[7];
1337 } __packed;
1338 
1339 /* Integrity ChecksumAlgorithm choices for above */
1340 #define	CHECKSUM_TYPE_NONE	0x0000
1341 #define	CHECKSUM_TYPE_CRC64	0x0002
1342 #define	CHECKSUM_TYPE_UNCHANGED	0xFFFF	/* set only */
1343 
1344 /* Integrity flags for above */
1345 #define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF	0x00000001
1346 
1347 /* Reparse structures - see MS-FSCC 2.1.2 */
1348 
1349 /* struct fsctl_reparse_info_req is empty, only response structs (see below) */
1350 struct reparse_data_buffer {
1351 	__le32	ReparseTag;
1352 	__le16	ReparseDataLength;
1353 	__u16	Reserved;
1354 	__u8	DataBuffer[]; /* Variable Length */
1355 } __packed;
1356 
1357 struct reparse_guid_data_buffer {
1358 	__le32	ReparseTag;
1359 	__le16	ReparseDataLength;
1360 	__u16	Reserved;
1361 	__u8	ReparseGuid[16];
1362 	__u8	DataBuffer[]; /* Variable Length */
1363 } __packed;
1364 
1365 struct reparse_mount_point_data_buffer {
1366 	__le32	ReparseTag;
1367 	__le16	ReparseDataLength;
1368 	__u16	Reserved;
1369 	__le16	SubstituteNameOffset;
1370 	__le16	SubstituteNameLength;
1371 	__le16	PrintNameOffset;
1372 	__le16	PrintNameLength;
1373 	__u8	PathBuffer[]; /* Variable Length */
1374 } __packed;
1375 
1376 #define SYMLINK_FLAG_RELATIVE 0x00000001
1377 
1378 struct reparse_symlink_data_buffer {
1379 	__le32	ReparseTag;
1380 	__le16	ReparseDataLength;
1381 	__u16	Reserved;
1382 	__le16	SubstituteNameOffset;
1383 	__le16	SubstituteNameLength;
1384 	__le16	PrintNameOffset;
1385 	__le16	PrintNameLength;
1386 	__le32	Flags;
1387 	__u8	PathBuffer[]; /* Variable Length */
1388 } __packed;
1389 
1390 /* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
1391 
1392 struct validate_negotiate_info_req {
1393 	__le32 Capabilities;
1394 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1395 	__le16 SecurityMode;
1396 	__le16 DialectCount;
1397 	__le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
1398 } __packed;
1399 
1400 struct validate_negotiate_info_rsp {
1401 	__le32 Capabilities;
1402 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1403 	__le16 SecurityMode;
1404 	__le16 Dialect; /* Dialect in use for the connection */
1405 } __packed;
1406 
1407 
1408 /* Possible InfoType values */
1409 #define SMB2_O_INFO_FILE	0x01
1410 #define SMB2_O_INFO_FILESYSTEM	0x02
1411 #define SMB2_O_INFO_SECURITY	0x03
1412 #define SMB2_O_INFO_QUOTA	0x04
1413 
1414 /* SMB2 Query Info see MS-SMB2 (2.2.37) or MS-DTYP */
1415 
1416 /* List of QUERY INFO levels (those also valid for QUERY_DIR are noted below */
1417 #define FILE_DIRECTORY_INFORMATION	1	/* also for QUERY_DIR */
1418 #define FILE_FULL_DIRECTORY_INFORMATION 2	/* also for QUERY_DIR */
1419 #define FILE_BOTH_DIRECTORY_INFORMATION 3	/* also for QUERY_DIR */
1420 #define FILE_BASIC_INFORMATION		4
1421 #define FILE_STANDARD_INFORMATION	5
1422 #define FILE_INTERNAL_INFORMATION	6
1423 #define FILE_EA_INFORMATION	        7
1424 #define FILE_ACCESS_INFORMATION		8
1425 #define FILE_NAME_INFORMATION		9
1426 #define FILE_RENAME_INFORMATION		10
1427 #define FILE_LINK_INFORMATION		11
1428 #define FILE_NAMES_INFORMATION		12	/* also for QUERY_DIR */
1429 #define FILE_DISPOSITION_INFORMATION	13
1430 #define FILE_POSITION_INFORMATION	14
1431 #define FILE_FULL_EA_INFORMATION	15
1432 #define FILE_MODE_INFORMATION		16
1433 #define FILE_ALIGNMENT_INFORMATION	17
1434 #define FILE_ALL_INFORMATION		18
1435 #define FILE_ALLOCATION_INFORMATION	19
1436 #define FILE_END_OF_FILE_INFORMATION	20
1437 #define FILE_ALTERNATE_NAME_INFORMATION 21
1438 #define FILE_STREAM_INFORMATION		22
1439 #define FILE_PIPE_INFORMATION		23
1440 #define FILE_PIPE_LOCAL_INFORMATION	24
1441 #define FILE_PIPE_REMOTE_INFORMATION	25
1442 #define FILE_MAILSLOT_QUERY_INFORMATION 26
1443 #define FILE_MAILSLOT_SET_INFORMATION	27
1444 #define FILE_COMPRESSION_INFORMATION	28
1445 #define FILE_OBJECT_ID_INFORMATION	29
1446 /* Number 30 not defined in documents */
1447 #define FILE_MOVE_CLUSTER_INFORMATION	31
1448 #define FILE_QUOTA_INFORMATION		32
1449 #define FILE_REPARSE_POINT_INFORMATION	33
1450 #define FILE_NETWORK_OPEN_INFORMATION	34
1451 #define FILE_ATTRIBUTE_TAG_INFORMATION	35
1452 #define FILE_TRACKING_INFORMATION	36
1453 #define FILEID_BOTH_DIRECTORY_INFORMATION 37	/* also for QUERY_DIR */
1454 #define FILEID_FULL_DIRECTORY_INFORMATION 38	/* also for QUERY_DIR */
1455 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
1456 #define FILE_SHORT_NAME_INFORMATION	40
1457 #define FILE_SFIO_RESERVE_INFORMATION	44
1458 #define FILE_SFIO_VOLUME_INFORMATION	45
1459 #define FILE_HARD_LINK_INFORMATION	46
1460 #define FILE_NORMALIZED_NAME_INFORMATION 48
1461 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1462 #define FILE_STANDARD_LINK_INFORMATION	54
1463 #define FILE_ID_INFORMATION		59
1464 #define FILE_ID_EXTD_DIRECTORY_INFORMATION 60	/* also for QUERY_DIR */
1465 /* Used for Query Info and Find File POSIX Info for SMB3.1.1 and SMB1 */
1466 #define SMB_FIND_FILE_POSIX_INFO	0x064
1467 
1468 /* Security info type additionalinfo flags. */
1469 #define OWNER_SECINFO   0x00000001
1470 #define GROUP_SECINFO   0x00000002
1471 #define DACL_SECINFO   0x00000004
1472 #define SACL_SECINFO   0x00000008
1473 #define LABEL_SECINFO   0x00000010
1474 #define ATTRIBUTE_SECINFO   0x00000020
1475 #define SCOPE_SECINFO   0x00000040
1476 #define BACKUP_SECINFO   0x00010000
1477 #define UNPROTECTED_SACL_SECINFO   0x10000000
1478 #define UNPROTECTED_DACL_SECINFO   0x20000000
1479 #define PROTECTED_SACL_SECINFO   0x40000000
1480 #define PROTECTED_DACL_SECINFO   0x80000000
1481 
1482 /* Flags used for FileFullEAinfo */
1483 #define SL_RESTART_SCAN		0x00000001
1484 #define SL_RETURN_SINGLE_ENTRY	0x00000002
1485 #define SL_INDEX_SPECIFIED	0x00000004
1486 
1487 struct smb2_query_info_req {
1488 	struct smb2_hdr hdr;
1489 	__le16 StructureSize; /* Must be 41 */
1490 	__u8   InfoType;
1491 	__u8   FileInfoClass;
1492 	__le32 OutputBufferLength;
1493 	__le16 InputBufferOffset;
1494 	__u16  Reserved;
1495 	__le32 InputBufferLength;
1496 	__le32 AdditionalInformation;
1497 	__le32 Flags;
1498 	__u64  PersistentFileId;
1499 	__u64  VolatileFileId;
1500 	__u8   Buffer[1];
1501 } __packed;
1502 
1503 struct smb2_query_info_rsp {
1504 	struct smb2_hdr hdr;
1505 	__le16 StructureSize; /* Must be 9 */
1506 	__le16 OutputBufferOffset;
1507 	__le32 OutputBufferLength;
1508 	__u8   Buffer[1];
1509 } __packed;
1510 
1511 /*
1512  *	PDU query infolevel structure definitions
1513  */
1514 
1515 /* See MS-FSCC 2.3.52 */
1516 struct file_allocated_range_buffer {
1517 	__le64	file_offset;
1518 	__le64	length;
1519 } __packed;
1520 
1521 struct smb2_file_internal_info {
1522 	__le64 IndexNumber;
1523 } __packed; /* level 6 Query */
1524 
1525 struct smb2_file_rename_info { /* encoding of request for level 10 */
1526 	__u8   ReplaceIfExists; /* 1 = replace existing target with new */
1527 				/* 0 = fail if target already exists */
1528 	__u8   Reserved[7];
1529 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1530 	__le32 FileNameLength;
1531 	char   FileName[];     /* New name to be assigned */
1532 	/* padding - overall struct size must be >= 24 so filename + pad >= 6 */
1533 } __packed; /* level 10 Set */
1534 
1535 struct smb2_file_link_info { /* encoding of request for level 11 */
1536 	__u8   ReplaceIfExists; /* 1 = replace existing link with new */
1537 				/* 0 = fail if link already exists */
1538 	__u8   Reserved[7];
1539 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1540 	__le32 FileNameLength;
1541 	char   FileName[];     /* Name to be assigned to new link */
1542 } __packed; /* level 11 Set */
1543 
1544 /*
1545  * This level 18, although with struct with same name is different from cifs
1546  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1547  * CurrentByteOffset.
1548  */
1549 struct smb2_file_all_info { /* data block encoding of response to level 18 */
1550 	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
1551 	__le64 LastAccessTime;
1552 	__le64 LastWriteTime;
1553 	__le64 ChangeTime;
1554 	__le32 Attributes;
1555 	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
1556 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1557 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
1558 	__le32 NumberOfLinks;	/* hard links */
1559 	__u8   DeletePending;
1560 	__u8   Directory;
1561 	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
1562 	__le64 IndexNumber;
1563 	__le32 EASize;
1564 	__le32 AccessFlags;
1565 	__le64 CurrentByteOffset;
1566 	__le32 Mode;
1567 	__le32 AlignmentRequirement;
1568 	__le32 FileNameLength;
1569 	char   FileName[1];
1570 } __packed; /* level 18 Query */
1571 
1572 struct smb2_file_eof_info { /* encoding of request for level 10 */
1573 	__le64 EndOfFile; /* new end of file value */
1574 } __packed; /* level 20 Set */
1575 
1576 /* Level 100 query info */
1577 struct smb311_posix_qinfo {
1578 	__le64 CreationTime;
1579 	__le64 LastAccessTime;
1580 	__le64 LastWriteTime;
1581 	__le64 ChangeTime;
1582 	__le64 EndOfFile;
1583 	__le64 AllocationSize;
1584 	__le32 DosAttributes;
1585 	__le64 Inode;
1586 	__le32 DeviceId;
1587 	__le32 Zero;
1588 	/* beginning of POSIX Create Context Response */
1589 	__le32 HardLinks;
1590 	__le32 ReparseTag;
1591 	__le32 Mode;
1592 	u8     Sids[];
1593 	/*
1594 	 * var sized owner SID
1595 	 * var sized group SID
1596 	 * le32 filenamelength
1597 	 * u8  filename[]
1598 	 */
1599 } __packed;
1600 
1601 /* File System Information Classes */
1602 #define FS_VOLUME_INFORMATION		1 /* Query */
1603 #define FS_LABEL_INFORMATION		2 /* Set */
1604 #define FS_SIZE_INFORMATION		3 /* Query */
1605 #define FS_DEVICE_INFORMATION		4 /* Query */
1606 #define FS_ATTRIBUTE_INFORMATION	5 /* Query */
1607 #define FS_CONTROL_INFORMATION		6 /* Query, Set */
1608 #define FS_FULL_SIZE_INFORMATION	7 /* Query */
1609 #define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
1610 #define FS_DRIVER_PATH_INFORMATION	9 /* Query */
1611 #define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
1612 #define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */
1613 
1614 struct smb2_fs_full_size_info {
1615 	__le64 TotalAllocationUnits;
1616 	__le64 CallerAvailableAllocationUnits;
1617 	__le64 ActualAvailableAllocationUnits;
1618 	__le32 SectorsPerAllocationUnit;
1619 	__le32 BytesPerSector;
1620 } __packed;
1621 
1622 #define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
1623 #define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1624 #define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
1625 #define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
1626 
1627 /* sector size info struct */
1628 struct smb3_fs_ss_info {
1629 	__le32 LogicalBytesPerSector;
1630 	__le32 PhysicalBytesPerSectorForAtomicity;
1631 	__le32 PhysicalBytesPerSectorForPerf;
1632 	__le32 FSEffPhysicalBytesPerSectorForAtomicity;
1633 	__le32 Flags;
1634 	__le32 ByteOffsetForSectorAlignment;
1635 	__le32 ByteOffsetForPartitionAlignment;
1636 } __packed;
1637 
1638 /* File System Control Information */
1639 struct smb2_fs_control_info {
1640 	__le64 FreeSpaceStartFiltering;
1641 	__le64 FreeSpaceThreshold;
1642 	__le64 FreeSpaceStopFiltering;
1643 	__le64 DefaultQuotaThreshold;
1644 	__le64 DefaultQuotaLimit;
1645 	__le32 FileSystemControlFlags;
1646 	__le32 Padding;
1647 } __packed;
1648 
1649 /* volume info struct - see MS-FSCC 2.5.9 */
1650 #define MAX_VOL_LABEL_LEN	32
1651 struct smb3_fs_vol_info {
1652 	__le64	VolumeCreationTime;
1653 	__u32	VolumeSerialNumber;
1654 	__le32	VolumeLabelLength; /* includes trailing null */
1655 	__u8	SupportsObjects; /* True if eg like NTFS, supports objects */
1656 	__u8	Reserved;
1657 	__u8	VolumeLabel[]; /* variable len */
1658 } __packed;
1659 
1660 /* See MS-SMB2 2.2.23 through 2.2.25 */
1661 struct smb2_oplock_break {
1662 	struct smb2_hdr hdr;
1663 	__le16 StructureSize; /* Must be 24 */
1664 	__u8   OplockLevel;
1665 	__u8   Reserved;
1666 	__le32 Reserved2;
1667 	__u64  PersistentFid;
1668 	__u64  VolatileFid;
1669 } __packed;
1670 
1671 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1672 
1673 struct smb2_lease_break {
1674 	struct smb2_hdr hdr;
1675 	__le16 StructureSize; /* Must be 44 */
1676 	__le16 Epoch;
1677 	__le32 Flags;
1678 	__u8   LeaseKey[16];
1679 	__le32 CurrentLeaseState;
1680 	__le32 NewLeaseState;
1681 	__le32 BreakReason;
1682 	__le32 AccessMaskHint;
1683 	__le32 ShareMaskHint;
1684 } __packed;
1685 
1686 struct smb2_lease_ack {
1687 	struct smb2_hdr hdr;
1688 	__le16 StructureSize; /* Must be 36 */
1689 	__le16 Reserved;
1690 	__le32 Flags;
1691 	__u8   LeaseKey[16];
1692 	__le32 LeaseState;
1693 	__le64 LeaseDuration;
1694 } __packed;
1695 
1696 #define OP_BREAK_STRUCT_SIZE_20		24
1697 #define OP_BREAK_STRUCT_SIZE_21		36
1698 #endif				/* _COMMON_SMB2PDU_H */
1699