xref: /openbmc/linux/fs/smb/common/smb2pdu.h (revision 9853f130)
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 smb3_hdr_req {
157 	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
158 	__le16 StructureSize;	/* 64 */
159 	__le16 CreditCharge;	/* MBZ */
160 	__le16 ChannelSequence; /* See MS-SMB2 3.2.4.1 and 3.2.7.1 */
161 	__le16 Reserved;
162 	__le16 Command;
163 	__le16 CreditRequest;	/* CreditResponse */
164 	__le32 Flags;
165 	__le32 NextCommand;
166 	__le64 MessageId;
167 	union {
168 		struct {
169 			__le32 ProcessId;
170 			__le32  TreeId;
171 		} __packed SyncId;
172 		__le64  AsyncId;
173 	} __packed Id;
174 	__le64  SessionId;
175 	__u8   Signature[16];
176 } __packed;
177 
178 struct smb2_pdu {
179 	struct smb2_hdr hdr;
180 	__le16 StructureSize2; /* size of wct area (varies, request specific) */
181 } __packed;
182 
183 #define SMB2_ERROR_STRUCTURE_SIZE2	9
184 #define SMB2_ERROR_STRUCTURE_SIZE2_LE	cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)
185 
186 struct smb2_err_rsp {
187 	struct smb2_hdr hdr;
188 	__le16 StructureSize;
189 	__u8   ErrorContextCount;
190 	__u8   Reserved;
191 	__le32 ByteCount;  /* even if zero, at least one byte follows */
192 	__u8   ErrorData[];  /* variable length */
193 } __packed;
194 
195 #define SMB3_AES_CCM_NONCE 11
196 #define SMB3_AES_GCM_NONCE 12
197 
198 /* Transform flags (for 3.0 dialect this flag indicates CCM */
199 #define TRANSFORM_FLAG_ENCRYPTED	0x0001
200 struct smb2_transform_hdr {
201 	__le32 ProtocolId;	/* 0xFD 'S' 'M' 'B' */
202 	__u8   Signature[16];
203 	__u8   Nonce[16];
204 	__le32 OriginalMessageSize;
205 	__u16  Reserved1;
206 	__le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
207 	__le64  SessionId;
208 } __packed;
209 
210 
211 /* See MS-SMB2 2.2.42 */
212 struct smb2_compression_transform_hdr_unchained {
213 	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */
214 	__le32 OriginalCompressedSegmentSize;
215 	__le16 CompressionAlgorithm;
216 	__le16 Flags;
217 	__le16 Length; /* if chained it is length, else offset */
218 } __packed;
219 
220 /* See MS-SMB2 2.2.42.1 */
221 #define SMB2_COMPRESSION_FLAG_NONE	0x0000
222 #define SMB2_COMPRESSION_FLAG_CHAINED	0x0001
223 
224 struct compression_payload_header {
225 	__le16	CompressionAlgorithm;
226 	__le16	Flags;
227 	__le32	Length; /* length of compressed playload including field below if present */
228 	/* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */
229 } __packed;
230 
231 /* See MS-SMB2 2.2.42.2 */
232 struct smb2_compression_transform_hdr_chained {
233 	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */
234 	__le32 OriginalCompressedSegmentSize;
235 	/* struct compression_payload_header[] */
236 } __packed;
237 
238 /* See MS-SMB2 2.2.42.2.2 */
239 struct compression_pattern_payload_v1 {
240 	__le16	Pattern;
241 	__le16	Reserved1;
242 	__le16	Reserved2;
243 	__le32	Repetitions;
244 } __packed;
245 
246 /* See MS-SMB2 section 2.2.9.2 */
247 /* Context Types */
248 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
249 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
250 
251 struct tree_connect_contexts {
252 	__le16 ContextType;
253 	__le16 DataLength;
254 	__le32 Reserved;
255 	__u8   Data[];
256 } __packed;
257 
258 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
259 struct smb3_blob_data {
260 	__le16 BlobSize;
261 	__u8   BlobData[];
262 } __packed;
263 
264 /* Valid values for Attr */
265 #define SE_GROUP_MANDATORY		0x00000001
266 #define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
267 #define SE_GROUP_ENABLED		0x00000004
268 #define SE_GROUP_OWNER			0x00000008
269 #define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
270 #define SE_GROUP_INTEGRITY		0x00000020
271 #define SE_GROUP_INTEGRITY_ENABLED	0x00000040
272 #define SE_GROUP_RESOURCE		0x20000000
273 #define SE_GROUP_LOGON_ID		0xC0000000
274 
275 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
276 
277 struct sid_array_data {
278 	__le16 SidAttrCount;
279 	/* SidAttrList - array of sid_attr_data structs */
280 } __packed;
281 
282 struct luid_attr_data {
283 
284 } __packed;
285 
286 /*
287  * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
288  * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
289  */
290 
291 struct privilege_array_data {
292 	__le16 PrivilegeCount;
293 	/* array of privilege_data structs */
294 } __packed;
295 
296 struct remoted_identity_tcon_context {
297 	__le16 TicketType; /* must be 0x0001 */
298 	__le16 TicketSize; /* total size of this struct */
299 	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
300 	__le16 UserName; /* offset to null terminated Unicode username string */
301 	__le16 Domain; /* offset to null terminated Unicode domain name */
302 	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
303 	__le16 RestrictedGroups; /* similar to above */
304 	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
305 	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
306 	__le16 Owner; /* offset to BLOB_DATA struct */
307 	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
308 	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
309 	__le16 UserClaims; /* offset to BLOB_DATA struct */
310 	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
311 	__u8   TicketInfo[]; /* variable length buf - remoted identity data */
312 } __packed;
313 
314 struct smb2_tree_connect_req_extension {
315 	__le32 TreeConnectContextOffset;
316 	__le16 TreeConnectContextCount;
317 	__u8  Reserved[10];
318 	__u8  PathName[]; /* variable sized array */
319 	/* followed by array of TreeConnectContexts */
320 } __packed;
321 
322 /* Flags/Reserved for SMB3.1.1 */
323 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
324 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
325 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
326 
327 struct smb2_tree_connect_req {
328 	struct smb2_hdr hdr;
329 	__le16 StructureSize;	/* Must be 9 */
330 	__le16 Flags;		/* Flags in SMB3.1.1 */
331 	__le16 PathOffset;
332 	__le16 PathLength;
333 	__u8   Buffer[];	/* variable length */
334 } __packed;
335 
336 /* Possible ShareType values */
337 #define SMB2_SHARE_TYPE_DISK	0x01
338 #define SMB2_SHARE_TYPE_PIPE	0x02
339 #define	SMB2_SHARE_TYPE_PRINT	0x03
340 
341 /*
342  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
343  * must be set (any of the remaining, SHI1005, flags may be set individually
344  * or in combination.
345  */
346 #define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
347 #define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
348 #define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
349 #define SMB2_SHAREFLAG_NO_CACHING			0x00000030
350 #define SHI1005_FLAGS_DFS				0x00000001
351 #define SHI1005_FLAGS_DFS_ROOT				0x00000002
352 #define SMB2_SHAREFLAG_RESTRICT_EXCLUSIVE_OPENS		0x00000100
353 #define SMB2_SHAREFLAG_FORCE_SHARED_DELETE		0x00000200
354 #define SMB2_SHAREFLAG_ALLOW_NAMESPACE_CACHING		0x00000400
355 #define SMB2_SHAREFLAG_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
356 #define SMB2_SHAREFLAG_FORCE_LEVELII_OPLOCK		0x00001000
357 #define SMB2_SHAREFLAG_ENABLE_HASH_V1			0x00002000
358 #define SMB2_SHAREFLAG_ENABLE_HASH_V2			0x00004000
359 #define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
360 #define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
361 #define SMB2_SHAREFLAG_COMPRESS_DATA			0x00100000 /* 3.1.1 */
362 #define SMB2_SHAREFLAG_ISOLATED_TRANSPORT		0x00200000
363 #define SHI1005_FLAGS_ALL				0x0034FF33
364 
365 /* Possible share capabilities */
366 #define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
367 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
368 #define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
369 #define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
370 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
371 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
372 
373 struct smb2_tree_connect_rsp {
374 	struct smb2_hdr hdr;
375 	__le16 StructureSize;	/* Must be 16 */
376 	__u8   ShareType;	/* see below */
377 	__u8   Reserved;
378 	__le32 ShareFlags;	/* see below */
379 	__le32 Capabilities;	/* see below */
380 	__le32 MaximalAccess;
381 } __packed;
382 
383 struct smb2_tree_disconnect_req {
384 	struct smb2_hdr hdr;
385 	__le16 StructureSize;	/* Must be 4 */
386 	__le16 Reserved;
387 } __packed;
388 
389 struct smb2_tree_disconnect_rsp {
390 	struct smb2_hdr hdr;
391 	__le16 StructureSize;	/* Must be 4 */
392 	__le16 Reserved;
393 } __packed;
394 
395 
396 /*
397  * SMB2_NEGOTIATE_PROTOCOL  See MS-SMB2 section 2.2.3
398  */
399 /* SecurityMode flags */
400 #define	SMB2_NEGOTIATE_SIGNING_ENABLED     0x0001
401 #define	SMB2_NEGOTIATE_SIGNING_ENABLED_LE  cpu_to_le16(0x0001)
402 #define SMB2_NEGOTIATE_SIGNING_REQUIRED	   0x0002
403 #define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002)
404 #define SMB2_SEC_MODE_FLAGS_ALL            0x0003
405 
406 /* Capabilities flags */
407 #define SMB2_GLOBAL_CAP_DFS		0x00000001
408 #define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
409 #define SMB2_GLOBAL_CAP_LARGE_MTU	0x00000004 /* Resp only New to SMB2.1 */
410 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
411 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
412 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
413 #define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
414 /* Internal types */
415 #define SMB2_NT_FIND			0x00100000
416 #define SMB2_LARGE_FILES		0x00200000
417 
418 #define SMB2_CLIENT_GUID_SIZE		16
419 #define SMB2_CREATE_GUID_SIZE		16
420 
421 /* Dialects */
422 #define SMB10_PROT_ID  0x0000 /* local only, not sent on wire w/CIFS negprot */
423 #define SMB20_PROT_ID  0x0202
424 #define SMB21_PROT_ID  0x0210
425 #define SMB2X_PROT_ID  0x02FF
426 #define SMB30_PROT_ID  0x0300
427 #define SMB302_PROT_ID 0x0302
428 #define SMB311_PROT_ID 0x0311
429 #define BAD_PROT_ID    0xFFFF
430 
431 #define SMB311_SALT_SIZE			32
432 /* Hash Algorithm Types */
433 #define SMB2_PREAUTH_INTEGRITY_SHA512	cpu_to_le16(0x0001)
434 #define SMB2_PREAUTH_HASH_SIZE 64
435 
436 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
437 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES	cpu_to_le16(1)
438 #define SMB2_ENCRYPTION_CAPABILITIES		cpu_to_le16(2)
439 #define SMB2_COMPRESSION_CAPABILITIES		cpu_to_le16(3)
440 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID	cpu_to_le16(5)
441 #define SMB2_TRANSPORT_CAPABILITIES		cpu_to_le16(6)
442 #define SMB2_RDMA_TRANSFORM_CAPABILITIES	cpu_to_le16(7)
443 #define SMB2_SIGNING_CAPABILITIES		cpu_to_le16(8)
444 #define SMB2_POSIX_EXTENSIONS_AVAILABLE		cpu_to_le16(0x100)
445 
446 struct smb2_neg_context {
447 	__le16	ContextType;
448 	__le16	DataLength;
449 	__le32	Reserved;
450 	/* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */
451 } __packed;
452 
453 /*
454  * SaltLength that the server send can be zero, so the only three required
455  * fields (all __le16) end up six bytes total, so the minimum context data len
456  * in the response is six bytes which accounts for
457  *
458  *      HashAlgorithmCount, SaltLength, and 1 HashAlgorithm.
459  */
460 #define MIN_PREAUTH_CTXT_DATA_LEN 6
461 
462 struct smb2_preauth_neg_context {
463 	__le16	ContextType; /* 1 */
464 	__le16	DataLength;
465 	__le32	Reserved;
466 	__le16	HashAlgorithmCount; /* 1 */
467 	__le16	SaltLength;
468 	__le16	HashAlgorithms; /* HashAlgorithms[0] since only one defined */
469 	__u8	Salt[SMB311_SALT_SIZE];
470 } __packed;
471 
472 /* Encryption Algorithms Ciphers */
473 #define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
474 #define SMB2_ENCRYPTION_AES128_GCM	cpu_to_le16(0x0002)
475 #define SMB2_ENCRYPTION_AES256_CCM      cpu_to_le16(0x0003)
476 #define SMB2_ENCRYPTION_AES256_GCM      cpu_to_le16(0x0004)
477 
478 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
479 #define MIN_ENCRYPT_CTXT_DATA_LEN	4
480 struct smb2_encryption_neg_context {
481 	__le16	ContextType; /* 2 */
482 	__le16	DataLength;
483 	__le32	Reserved;
484 	/* CipherCount usally 2, but can be 3 when AES256-GCM enabled */
485 	__le16	CipherCount; /* AES128-GCM and AES128-CCM by default */
486 	__le16	Ciphers[];
487 } __packed;
488 
489 /* See MS-SMB2 2.2.3.1.3 */
490 #define SMB3_COMPRESS_NONE	cpu_to_le16(0x0000)
491 #define SMB3_COMPRESS_LZNT1	cpu_to_le16(0x0001)
492 #define SMB3_COMPRESS_LZ77	cpu_to_le16(0x0002)
493 #define SMB3_COMPRESS_LZ77_HUFF	cpu_to_le16(0x0003)
494 /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
495 #define SMB3_COMPRESS_PATTERN	cpu_to_le16(0x0004) /* Pattern_V1 */
496 
497 /* Compression Flags */
498 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE		cpu_to_le32(0x00000000)
499 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED	cpu_to_le32(0x00000001)
500 
501 struct smb2_compression_capabilities_context {
502 	__le16	ContextType; /* 3 */
503 	__le16  DataLength;
504 	__le32	Reserved;
505 	__le16	CompressionAlgorithmCount;
506 	__le16	Padding;
507 	__le32	Flags;
508 	__le16	CompressionAlgorithms[3];
509 	__u16	Pad;  /* Some servers require pad to DataLen multiple of 8 */
510 	/* Check if pad needed */
511 } __packed;
512 
513 /*
514  * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
515  * Its struct simply contains NetName, an array of Unicode characters
516  */
517 struct smb2_netname_neg_context {
518 	__le16	ContextType; /* 5 */
519 	__le16	DataLength;
520 	__le32	Reserved;
521 	__le16	NetName[]; /* hostname of target converted to UCS-2 */
522 } __packed;
523 
524 /*
525  * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
526  * and 2.2.4.1.5
527  */
528 
529 /* Flags */
530 #define SMB2_ACCEPT_TRANSPORT_LEVEL_SECURITY	0x00000001
531 
532 struct smb2_transport_capabilities_context {
533 	__le16	ContextType; /* 6 */
534 	__le16  DataLength;
535 	__u32	Reserved;
536 	__le32	Flags;
537 	__u32	Pad;
538 } __packed;
539 
540 /*
541  * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
542  * and 2.2.4.1.6
543  */
544 
545 /* RDMA Transform IDs */
546 #define SMB2_RDMA_TRANSFORM_NONE	0x0000
547 #define SMB2_RDMA_TRANSFORM_ENCRYPTION	0x0001
548 #define SMB2_RDMA_TRANSFORM_SIGNING	0x0002
549 
550 struct smb2_rdma_transform_capabilities_context {
551 	__le16	ContextType; /* 7 */
552 	__le16  DataLength;
553 	__u32	Reserved;
554 	__le16	TransformCount;
555 	__u16	Reserved1;
556 	__u32	Reserved2;
557 	__le16	RDMATransformIds[];
558 } __packed;
559 
560 /*
561  * For signing capabilities context see MS-SMB2 2.2.3.1.7
562  * and 2.2.4.1.7
563  */
564 
565 /* Signing algorithms */
566 #define SIGNING_ALG_HMAC_SHA256    0
567 #define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0)
568 #define SIGNING_ALG_AES_CMAC       1
569 #define SIGNING_ALG_AES_CMAC_LE    cpu_to_le16(1)
570 #define SIGNING_ALG_AES_GMAC       2
571 #define SIGNING_ALG_AES_GMAC_LE    cpu_to_le16(2)
572 
573 struct smb2_signing_capabilities {
574 	__le16	ContextType; /* 8 */
575 	__le16	DataLength;
576 	__le32	Reserved;
577 	__le16	SigningAlgorithmCount;
578 	__le16	SigningAlgorithms[];
579 	/*  Followed by padding to 8 byte boundary (required by some servers) */
580 } __packed;
581 
582 #define POSIX_CTXT_DATA_LEN	16
583 struct smb2_posix_neg_context {
584 	__le16	ContextType; /* 0x100 */
585 	__le16	DataLength;
586 	__le32	Reserved;
587 	__u8	Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
588 } __packed;
589 
590 struct smb2_negotiate_req {
591 	struct smb2_hdr hdr;
592 	__le16 StructureSize; /* Must be 36 */
593 	__le16 DialectCount;
594 	__le16 SecurityMode;
595 	__le16 Reserved;	/* MBZ */
596 	__le32 Capabilities;
597 	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
598 	/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
599 	__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
600 	__le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
601 	__le16 Reserved2;
602 	__le16 Dialects[];
603 } __packed;
604 
605 struct smb2_negotiate_rsp {
606 	struct smb2_hdr hdr;
607 	__le16 StructureSize;	/* Must be 65 */
608 	__le16 SecurityMode;
609 	__le16 DialectRevision;
610 	__le16 NegotiateContextCount;	/* Prior to SMB3.1.1 was Reserved & MBZ */
611 	__u8   ServerGUID[16];
612 	__le32 Capabilities;
613 	__le32 MaxTransactSize;
614 	__le32 MaxReadSize;
615 	__le32 MaxWriteSize;
616 	__le64 SystemTime;	/* MBZ */
617 	__le64 ServerStartTime;
618 	__le16 SecurityBufferOffset;
619 	__le16 SecurityBufferLength;
620 	__le32 NegotiateContextOffset;	/* Pre:SMB3.1.1 was reserved/ignored */
621 	__u8   Buffer[];	/* variable length GSS security buffer */
622 } __packed;
623 
624 
625 /*
626  * SMB2_SESSION_SETUP  See MS-SMB2 section 2.2.5
627  */
628 /* Flags */
629 #define SMB2_SESSION_REQ_FLAG_BINDING		0x01
630 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA	0x04
631 
632 struct smb2_sess_setup_req {
633 	struct smb2_hdr hdr;
634 	__le16 StructureSize; /* Must be 25 */
635 	__u8   Flags;
636 	__u8   SecurityMode;
637 	__le32 Capabilities;
638 	__le32 Channel;
639 	__le16 SecurityBufferOffset;
640 	__le16 SecurityBufferLength;
641 	__le64 PreviousSessionId;
642 	__u8   Buffer[];	/* variable length GSS security buffer */
643 } __packed;
644 
645 /* Currently defined SessionFlags */
646 #define SMB2_SESSION_FLAG_IS_GUEST        0x0001
647 #define SMB2_SESSION_FLAG_IS_GUEST_LE     cpu_to_le16(0x0001)
648 #define SMB2_SESSION_FLAG_IS_NULL         0x0002
649 #define SMB2_SESSION_FLAG_IS_NULL_LE      cpu_to_le16(0x0002)
650 #define SMB2_SESSION_FLAG_ENCRYPT_DATA    0x0004
651 #define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
652 
653 struct smb2_sess_setup_rsp {
654 	struct smb2_hdr hdr;
655 	__le16 StructureSize; /* Must be 9 */
656 	__le16 SessionFlags;
657 	__le16 SecurityBufferOffset;
658 	__le16 SecurityBufferLength;
659 	__u8   Buffer[];	/* variable length GSS security buffer */
660 } __packed;
661 
662 
663 /*
664  * SMB2_LOGOFF  See MS-SMB2 section 2.2.7
665  */
666 struct smb2_logoff_req {
667 	struct smb2_hdr hdr;
668 	__le16 StructureSize;	/* Must be 4 */
669 	__le16 Reserved;
670 } __packed;
671 
672 struct smb2_logoff_rsp {
673 	struct smb2_hdr hdr;
674 	__le16 StructureSize;	/* Must be 4 */
675 	__le16 Reserved;
676 } __packed;
677 
678 
679 /*
680  * SMB2_CLOSE  See MS-SMB2 section 2.2.15
681  */
682 /* Currently defined values for close flags */
683 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
684 struct smb2_close_req {
685 	struct smb2_hdr hdr;
686 	__le16 StructureSize;	/* Must be 24 */
687 	__le16 Flags;
688 	__le32 Reserved;
689 	__u64  PersistentFileId; /* opaque endianness */
690 	__u64  VolatileFileId; /* opaque endianness */
691 } __packed;
692 
693 /*
694  * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
695  */
696 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
697 
698 struct smb2_close_rsp {
699 	struct smb2_hdr hdr;
700 	__le16 StructureSize; /* 60 */
701 	__le16 Flags;
702 	__le32 Reserved;
703 	struct_group(network_open_info,
704 		__le64 CreationTime;
705 		__le64 LastAccessTime;
706 		__le64 LastWriteTime;
707 		__le64 ChangeTime;
708 		/* Beginning of FILE_STANDARD_INFO equivalent */
709 		__le64 AllocationSize;
710 		__le64 EndOfFile;
711 		__le32 Attributes;
712 	);
713 } __packed;
714 
715 
716 /*
717  * SMB2_READ  See MS-SMB2 section 2.2.19
718  */
719 /* For read request Flags field below, following flag is defined for SMB3.02 */
720 #define SMB2_READFLAG_READ_UNBUFFERED	0x01
721 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
722 
723 /* Channel field for read and write: exactly one of following flags can be set*/
724 #define SMB2_CHANNEL_NONE               cpu_to_le32(0x00000000)
725 #define SMB2_CHANNEL_RDMA_V1            cpu_to_le32(0x00000001)
726 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
727 #define SMB2_CHANNEL_RDMA_TRANSFORM     cpu_to_le32(0x00000003)
728 
729 /* SMB2 read request without RFC1001 length at the beginning */
730 struct smb2_read_req {
731 	struct smb2_hdr hdr;
732 	__le16 StructureSize; /* Must be 49 */
733 	__u8   Padding; /* offset from start of SMB2 header to place read */
734 	__u8   Flags; /* MBZ unless SMB3.02 or later */
735 	__le32 Length;
736 	__le64 Offset;
737 	__u64  PersistentFileId;
738 	__u64  VolatileFileId;
739 	__le32 MinimumCount;
740 	__le32 Channel; /* MBZ except for SMB3 or later */
741 	__le32 RemainingBytes;
742 	__le16 ReadChannelInfoOffset;
743 	__le16 ReadChannelInfoLength;
744 	__u8   Buffer[];
745 } __packed;
746 
747 /* Read flags */
748 #define SMB2_READFLAG_RESPONSE_NONE            cpu_to_le32(0x00000000)
749 #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM  cpu_to_le32(0x00000001)
750 
751 struct smb2_read_rsp {
752 	struct smb2_hdr hdr;
753 	__le16 StructureSize; /* Must be 17 */
754 	__u8   DataOffset;
755 	__u8   Reserved;
756 	__le32 DataLength;
757 	__le32 DataRemaining;
758 	__le32 Flags;
759 	__u8   Buffer[];
760 } __packed;
761 
762 
763 /*
764  * SMB2_WRITE  See MS-SMB2 section 2.2.21
765  */
766 /* For write request Flags field below the following flags are defined: */
767 #define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
768 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */
769 
770 struct smb2_write_req {
771 	struct smb2_hdr hdr;
772 	__le16 StructureSize; /* Must be 49 */
773 	__le16 DataOffset; /* offset from start of SMB2 header to write data */
774 	__le32 Length;
775 	__le64 Offset;
776 	__u64  PersistentFileId; /* opaque endianness */
777 	__u64  VolatileFileId; /* opaque endianness */
778 	__le32 Channel; /* MBZ unless SMB3.02 or later */
779 	__le32 RemainingBytes;
780 	__le16 WriteChannelInfoOffset;
781 	__le16 WriteChannelInfoLength;
782 	__le32 Flags;
783 	__u8   Buffer[];
784 } __packed;
785 
786 struct smb2_write_rsp {
787 	struct smb2_hdr hdr;
788 	__le16 StructureSize; /* Must be 17 */
789 	__u8   DataOffset;
790 	__u8   Reserved;
791 	__le32 DataLength;
792 	__le32 DataRemaining;
793 	__u32  Reserved2;
794 	__u8   Buffer[];
795 } __packed;
796 
797 
798 /*
799  * SMB2_FLUSH  See MS-SMB2 section 2.2.17
800  */
801 struct smb2_flush_req {
802 	struct smb2_hdr hdr;
803 	__le16 StructureSize;	/* Must be 24 */
804 	__le16 Reserved1;
805 	__le32 Reserved2;
806 	__u64  PersistentFileId;
807 	__u64  VolatileFileId;
808 } __packed;
809 
810 struct smb2_flush_rsp {
811 	struct smb2_hdr hdr;
812 	__le16 StructureSize;
813 	__le16 Reserved;
814 } __packed;
815 
816 #define SMB2_LOCKFLAG_SHARED		0x0001
817 #define SMB2_LOCKFLAG_EXCLUSIVE		0x0002
818 #define SMB2_LOCKFLAG_UNLOCK		0x0004
819 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
820 #define SMB2_LOCKFLAG_MASK		0x0007
821 
822 struct smb2_lock_element {
823 	__le64 Offset;
824 	__le64 Length;
825 	__le32 Flags;
826 	__le32 Reserved;
827 } __packed;
828 
829 struct smb2_lock_req {
830 	struct smb2_hdr hdr;
831 	__le16 StructureSize; /* Must be 48 */
832 	__le16 LockCount;
833 	/*
834 	 * The least significant four bits are the index, the other 28 bits are
835 	 * the lock sequence number (0 to 64). See MS-SMB2 2.2.26
836 	 */
837 	__le32 LockSequenceNumber;
838 	__u64  PersistentFileId;
839 	__u64  VolatileFileId;
840 	/* Followed by at least one */
841 	union {
842 		struct smb2_lock_element lock;
843 		DECLARE_FLEX_ARRAY(struct smb2_lock_element, locks);
844 	};
845 } __packed;
846 
847 struct smb2_lock_rsp {
848 	struct smb2_hdr hdr;
849 	__le16 StructureSize; /* Must be 4 */
850 	__le16 Reserved;
851 } __packed;
852 
853 struct smb2_echo_req {
854 	struct smb2_hdr hdr;
855 	__le16 StructureSize;	/* Must be 4 */
856 	__u16  Reserved;
857 } __packed;
858 
859 struct smb2_echo_rsp {
860 	struct smb2_hdr hdr;
861 	__le16 StructureSize;	/* Must be 4 */
862 	__u16  Reserved;
863 } __packed;
864 
865 /*
866  * Valid FileInformation classes for query directory
867  *
868  * Note that these are a subset of the (file) QUERY_INFO levels defined
869  * later in this file (but since QUERY_DIRECTORY uses equivalent numbers
870  * we do not redefine them here)
871  *
872  * FileDirectoryInfomation		0x01
873  * FileFullDirectoryInformation		0x02
874  * FileIdFullDirectoryInformation	0x26
875  * FileBothDirectoryInformation		0x03
876  * FileIdBothDirectoryInformation	0x25
877  * FileNamesInformation			0x0C
878  * FileIdExtdDirectoryInformation	0x3C
879  */
880 
881 /* search (query_directory) Flags field */
882 #define SMB2_RESTART_SCANS		0x01
883 #define SMB2_RETURN_SINGLE_ENTRY	0x02
884 #define SMB2_INDEX_SPECIFIED		0x04
885 #define SMB2_REOPEN			0x10
886 
887 struct smb2_query_directory_req {
888 	struct smb2_hdr hdr;
889 	__le16 StructureSize; /* Must be 33 */
890 	__u8   FileInformationClass;
891 	__u8   Flags;
892 	__le32 FileIndex;
893 	__u64  PersistentFileId;
894 	__u64  VolatileFileId;
895 	__le16 FileNameOffset;
896 	__le16 FileNameLength;
897 	__le32 OutputBufferLength;
898 	__u8   Buffer[];
899 } __packed;
900 
901 struct smb2_query_directory_rsp {
902 	struct smb2_hdr hdr;
903 	__le16 StructureSize; /* Must be 9 */
904 	__le16 OutputBufferOffset;
905 	__le32 OutputBufferLength;
906 	__u8   Buffer[];
907 } __packed;
908 
909 /*
910  * Maximum number of iovs we need for a set-info request.
911  * The largest one is rename/hardlink
912  * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
913  * [1] : path
914  * [2] : compound padding
915  */
916 #define SMB2_SET_INFO_IOV_SIZE 3
917 
918 struct smb2_set_info_req {
919 	struct smb2_hdr hdr;
920 	__le16 StructureSize; /* Must be 33 */
921 	__u8   InfoType;
922 	__u8   FileInfoClass;
923 	__le32 BufferLength;
924 	__le16 BufferOffset;
925 	__u16  Reserved;
926 	__le32 AdditionalInformation;
927 	__u64  PersistentFileId;
928 	__u64  VolatileFileId;
929 	__u8   Buffer[];
930 } __packed;
931 
932 struct smb2_set_info_rsp {
933 	struct smb2_hdr hdr;
934 	__le16 StructureSize; /* Must be 2 */
935 } __packed;
936 
937 /*
938  * SMB2_NOTIFY  See MS-SMB2 section 2.2.35
939  */
940 /* notify flags */
941 #define SMB2_WATCH_TREE			0x0001
942 
943 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
944 #define FILE_NOTIFY_CHANGE_FILE_NAME		0x00000001
945 #define FILE_NOTIFY_CHANGE_DIR_NAME		0x00000002
946 #define FILE_NOTIFY_CHANGE_ATTRIBUTES		0x00000004
947 #define FILE_NOTIFY_CHANGE_SIZE			0x00000008
948 #define FILE_NOTIFY_CHANGE_LAST_WRITE		0x00000010
949 #define FILE_NOTIFY_CHANGE_LAST_ACCESS		0x00000020
950 #define FILE_NOTIFY_CHANGE_CREATION		0x00000040
951 #define FILE_NOTIFY_CHANGE_EA			0x00000080
952 #define FILE_NOTIFY_CHANGE_SECURITY		0x00000100
953 #define FILE_NOTIFY_CHANGE_STREAM_NAME		0x00000200
954 #define FILE_NOTIFY_CHANGE_STREAM_SIZE		0x00000400
955 #define FILE_NOTIFY_CHANGE_STREAM_WRITE		0x00000800
956 
957 /* SMB2 Notify Action Flags */
958 #define FILE_ACTION_ADDED                       0x00000001
959 #define FILE_ACTION_REMOVED                     0x00000002
960 #define FILE_ACTION_MODIFIED                    0x00000003
961 #define FILE_ACTION_RENAMED_OLD_NAME            0x00000004
962 #define FILE_ACTION_RENAMED_NEW_NAME            0x00000005
963 #define FILE_ACTION_ADDED_STREAM                0x00000006
964 #define FILE_ACTION_REMOVED_STREAM              0x00000007
965 #define FILE_ACTION_MODIFIED_STREAM             0x00000008
966 #define FILE_ACTION_REMOVED_BY_DELETE           0x00000009
967 
968 struct smb2_change_notify_req {
969 	struct smb2_hdr hdr;
970 	__le16	StructureSize;
971 	__le16	Flags;
972 	__le32	OutputBufferLength;
973 	__u64	PersistentFileId; /* opaque endianness */
974 	__u64	VolatileFileId; /* opaque endianness */
975 	__le32	CompletionFilter;
976 	__u32	Reserved;
977 } __packed;
978 
979 struct smb2_change_notify_rsp {
980 	struct smb2_hdr hdr;
981 	__le16	StructureSize;  /* Must be 9 */
982 	__le16	OutputBufferOffset;
983 	__le32	OutputBufferLength;
984 	__u8	Buffer[]; /* array of file notify structs */
985 } __packed;
986 
987 
988 /*
989  * SMB2_CREATE  See MS-SMB2 section 2.2.13
990  */
991 /* Oplock levels */
992 #define SMB2_OPLOCK_LEVEL_NONE		0x00
993 #define SMB2_OPLOCK_LEVEL_II		0x01
994 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
995 #define SMB2_OPLOCK_LEVEL_BATCH		0x09
996 #define SMB2_OPLOCK_LEVEL_LEASE		0xFF
997 /* Non-spec internal type */
998 #define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99
999 
1000 /* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
1001 #define IL_ANONYMOUS		cpu_to_le32(0x00000000)
1002 #define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
1003 #define IL_IMPERSONATION	cpu_to_le32(0x00000002)
1004 #define IL_DELEGATE		cpu_to_le32(0x00000003)
1005 
1006 /* File Attrubutes */
1007 #define FILE_ATTRIBUTE_READONLY			0x00000001
1008 #define FILE_ATTRIBUTE_HIDDEN			0x00000002
1009 #define FILE_ATTRIBUTE_SYSTEM			0x00000004
1010 #define FILE_ATTRIBUTE_DIRECTORY		0x00000010
1011 #define FILE_ATTRIBUTE_ARCHIVE			0x00000020
1012 #define FILE_ATTRIBUTE_NORMAL			0x00000080
1013 #define FILE_ATTRIBUTE_TEMPORARY		0x00000100
1014 #define FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
1015 #define FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
1016 #define FILE_ATTRIBUTE_COMPRESSED		0x00000800
1017 #define FILE_ATTRIBUTE_OFFLINE			0x00001000
1018 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
1019 #define FILE_ATTRIBUTE_ENCRYPTED		0x00004000
1020 #define FILE_ATTRIBUTE_INTEGRITY_STREAM		0x00008000
1021 #define FILE_ATTRIBUTE_NO_SCRUB_DATA		0x00020000
1022 #define FILE_ATTRIBUTE__MASK			0x00007FB7
1023 
1024 #define FILE_ATTRIBUTE_READONLY_LE              cpu_to_le32(0x00000001)
1025 #define FILE_ATTRIBUTE_HIDDEN_LE		cpu_to_le32(0x00000002)
1026 #define FILE_ATTRIBUTE_SYSTEM_LE		cpu_to_le32(0x00000004)
1027 #define FILE_ATTRIBUTE_DIRECTORY_LE		cpu_to_le32(0x00000010)
1028 #define FILE_ATTRIBUTE_ARCHIVE_LE		cpu_to_le32(0x00000020)
1029 #define FILE_ATTRIBUTE_NORMAL_LE		cpu_to_le32(0x00000080)
1030 #define FILE_ATTRIBUTE_TEMPORARY_LE		cpu_to_le32(0x00000100)
1031 #define FILE_ATTRIBUTE_SPARSE_FILE_LE		cpu_to_le32(0x00000200)
1032 #define FILE_ATTRIBUTE_REPARSE_POINT_LE		cpu_to_le32(0x00000400)
1033 #define FILE_ATTRIBUTE_COMPRESSED_LE		cpu_to_le32(0x00000800)
1034 #define FILE_ATTRIBUTE_OFFLINE_LE		cpu_to_le32(0x00001000)
1035 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE	cpu_to_le32(0x00002000)
1036 #define FILE_ATTRIBUTE_ENCRYPTED_LE		cpu_to_le32(0x00004000)
1037 #define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE	cpu_to_le32(0x00008000)
1038 #define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE		cpu_to_le32(0x00020000)
1039 #define FILE_ATTRIBUTE_MASK_LE			cpu_to_le32(0x00007FB7)
1040 
1041 /* Desired Access Flags */
1042 #define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
1043 #define FILE_LIST_DIRECTORY_LE		cpu_to_le32(0x00000001)
1044 #define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
1045 #define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
1046 #define FILE_ADD_SUBDIRECTORY_LE	cpu_to_le32(0x00000004)
1047 #define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
1048 #define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
1049 #define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
1050 #define FILE_DELETE_CHILD_LE		cpu_to_le32(0x00000040)
1051 #define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
1052 #define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
1053 #define FILE_DELETE_LE			cpu_to_le32(0x00010000)
1054 #define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
1055 #define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
1056 #define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
1057 #define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
1058 #define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
1059 #define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
1060 #define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
1061 #define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
1062 #define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
1063 #define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)
1064 #define DESIRED_ACCESS_MASK             cpu_to_le32(0xF21F01FF)
1065 
1066 
1067 #define FILE_READ_DESIRED_ACCESS_LE     (FILE_READ_DATA_LE        |	\
1068 					 FILE_READ_EA_LE          |     \
1069 					 FILE_GENERIC_READ_LE)
1070 #define FILE_WRITE_DESIRE_ACCESS_LE     (FILE_WRITE_DATA_LE       |	\
1071 					 FILE_APPEND_DATA_LE      |	\
1072 					 FILE_WRITE_EA_LE         |	\
1073 					 FILE_WRITE_ATTRIBUTES_LE |	\
1074 					 FILE_GENERIC_WRITE_LE)
1075 
1076 /* ShareAccess Flags */
1077 #define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
1078 #define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
1079 #define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
1080 #define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)
1081 
1082 /* CreateDisposition Flags */
1083 #define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
1084 #define FILE_OPEN_LE			cpu_to_le32(0x00000001)
1085 #define FILE_CREATE_LE			cpu_to_le32(0x00000002)
1086 #define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
1087 #define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
1088 #define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)
1089 #define FILE_CREATE_MASK_LE             cpu_to_le32(0x00000007)
1090 
1091 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
1092 			| FILE_READ_ATTRIBUTES)
1093 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
1094 			| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
1095 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
1096 
1097 /* CreateOptions Flags */
1098 #define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
1099 /* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
1100 #define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
1101 #define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
1102 #define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
1103 #define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
1104 #define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
1105 #define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
1106 #define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
1107 #define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000)
1108 #define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
1109 #define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
1110 #define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
1111 #define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
1112 #define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
1113 #define CREATE_OPTIONS_MASK_LE          cpu_to_le32(0x00FFFFFF)
1114 
1115 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
1116 			| FILE_READ_ATTRIBUTES_LE)
1117 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
1118 			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
1119 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
1120 
1121 /* Create Context Values */
1122 #define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
1123 #define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
1124 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
1125 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
1126 #define SMB2_CREATE_ALLOCATION_SIZE		"AlSi"
1127 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
1128 #define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
1129 #define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
1130 #define SMB2_CREATE_REQUEST_LEASE		"RqLs"
1131 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2	"DH2Q"
1132 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2	"DH2C"
1133 #define SMB2_CREATE_TAG_POSIX		"\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
1134 #define SMB2_CREATE_APP_INSTANCE_ID	"\x45\xBC\xA6\x6A\xEF\xA7\xF7\x4A\x90\x08\xFA\x46\x2E\x14\x4D\x74"
1135 #define SMB2_CREATE_APP_INSTANCE_VERSION "\xB9\x82\xD0\xB7\x3B\x56\x07\x4F\xA0\x7B\x52\x4A\x81\x16\xA0\x10"
1136 #define SVHDX_OPEN_DEVICE_CONTEXT	"\x9C\xCB\xCF\x9E\x04\xC1\xE6\x43\x98\x0E\x15\x8D\xA1\xF6\xEC\x83"
1137 #define SMB2_CREATE_TAG_AAPL			"AAPL"
1138 
1139 /* Flag (SMB3 open response) values */
1140 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
1141 
1142 struct create_context {
1143 	__le32 Next;
1144 	__le16 NameOffset;
1145 	__le16 NameLength;
1146 	__le16 Reserved;
1147 	__le16 DataOffset;
1148 	__le32 DataLength;
1149 	__u8 Buffer[];
1150 } __packed;
1151 
1152 struct smb2_create_req {
1153 	struct smb2_hdr hdr;
1154 	__le16 StructureSize;	/* Must be 57 */
1155 	__u8   SecurityFlags;
1156 	__u8   RequestedOplockLevel;
1157 	__le32 ImpersonationLevel;
1158 	__le64 SmbCreateFlags;
1159 	__le64 Reserved;
1160 	__le32 DesiredAccess;
1161 	__le32 FileAttributes;
1162 	__le32 ShareAccess;
1163 	__le32 CreateDisposition;
1164 	__le32 CreateOptions;
1165 	__le16 NameOffset;
1166 	__le16 NameLength;
1167 	__le32 CreateContextsOffset;
1168 	__le32 CreateContextsLength;
1169 	__u8   Buffer[];
1170 } __packed;
1171 
1172 struct smb2_create_rsp {
1173 	struct smb2_hdr hdr;
1174 	__le16 StructureSize;	/* Must be 89 */
1175 	__u8   OplockLevel;
1176 	__u8   Flags;  /* 0x01 if reparse point */
1177 	__le32 CreateAction;
1178 	__le64 CreationTime;
1179 	__le64 LastAccessTime;
1180 	__le64 LastWriteTime;
1181 	__le64 ChangeTime;
1182 	__le64 AllocationSize;
1183 	__le64 EndofFile;
1184 	__le32 FileAttributes;
1185 	__le32 Reserved2;
1186 	__u64  PersistentFileId;
1187 	__u64  VolatileFileId;
1188 	__le32 CreateContextsOffset;
1189 	__le32 CreateContextsLength;
1190 	__u8   Buffer[];
1191 } __packed;
1192 
1193 struct create_posix {
1194 	struct create_context ccontext;
1195 	__u8    Name[16];
1196 	__le32  Mode;
1197 	__u32   Reserved;
1198 } __packed;
1199 
1200 /* See MS-SMB2 2.2.13.2.3 and MS-SMB2 2.2.13.2.4 */
1201 struct create_durable {
1202 	struct create_context ccontext;
1203 	__u8   Name[8];
1204 	union {
1205 		__u8  Reserved[16];
1206 		struct {
1207 			__u64 PersistentFileId;
1208 			__u64 VolatileFileId;
1209 		} Fid;
1210 	} Data;
1211 } __packed;
1212 
1213 /* See MS-SMB2 2.2.13.2.5 */
1214 struct create_mxac_req {
1215 	struct create_context ccontext;
1216 	__u8   Name[8];
1217 	__le64 Timestamp;
1218 } __packed;
1219 
1220 /* See MS-SMB2 2.2.14.2.5 */
1221 struct create_mxac_rsp {
1222 	struct create_context ccontext;
1223 	__u8   Name[8];
1224 	__le32 QueryStatus;
1225 	__le32 MaximalAccess;
1226 } __packed;
1227 
1228 #define SMB2_LEASE_NONE_LE			cpu_to_le32(0x00)
1229 #define SMB2_LEASE_READ_CACHING_LE		cpu_to_le32(0x01)
1230 #define SMB2_LEASE_HANDLE_CACHING_LE		cpu_to_le32(0x02)
1231 #define SMB2_LEASE_WRITE_CACHING_LE		cpu_to_le32(0x04)
1232 
1233 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE	cpu_to_le32(0x02)
1234 #define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET_LE	cpu_to_le32(0x04)
1235 
1236 #define SMB2_LEASE_KEY_SIZE			16
1237 
1238 /* See MS-SMB2 2.2.13.2.8 */
1239 struct lease_context {
1240 	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1241 	__le32 LeaseState;
1242 	__le32 LeaseFlags;
1243 	__le64 LeaseDuration;
1244 } __packed;
1245 
1246 /* See MS-SMB2 2.2.13.2.10 */
1247 struct lease_context_v2 {
1248 	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1249 	__le32 LeaseState;
1250 	__le32 LeaseFlags;
1251 	__le64 LeaseDuration;
1252 	__u8 ParentLeaseKey[SMB2_LEASE_KEY_SIZE];
1253 	__le16 Epoch;
1254 	__le16 Reserved;
1255 } __packed;
1256 
1257 struct create_lease {
1258 	struct create_context ccontext;
1259 	__u8   Name[8];
1260 	struct lease_context lcontext;
1261 } __packed;
1262 
1263 struct create_lease_v2 {
1264 	struct create_context ccontext;
1265 	__u8   Name[8];
1266 	struct lease_context_v2 lcontext;
1267 	__u8   Pad[4];
1268 } __packed;
1269 
1270 /* See MS-SMB2 2.2.14.2.9 */
1271 struct create_disk_id_rsp {
1272 	struct create_context ccontext;
1273 	__u8   Name[8];
1274 	__le64 DiskFileId;
1275 	__le64 VolumeId;
1276 	__u8  Reserved[16];
1277 } __packed;
1278 
1279 /* See MS-SMB2 2.2.13.2.13 */
1280 struct create_app_inst_id {
1281 	struct create_context ccontext;
1282 	__u8 Name[16];
1283 	__le32 StructureSize; /* Must be 20 */
1284 	__u16 Reserved;
1285 	__u8 AppInstanceId[16];
1286 } __packed;
1287 
1288 /* See MS-SMB2 2.2.13.2.15 */
1289 struct create_app_inst_id_vers {
1290 	struct create_context ccontext;
1291 	__u8 Name[16];
1292 	__le32 StructureSize; /* Must be 24 */
1293 	__u16 Reserved;
1294 	__u32 Padding;
1295 	__le64 AppInstanceVersionHigh;
1296 	__le64 AppInstanceVersionLow;
1297 } __packed;
1298 
1299 /* See MS-SMB2 2.2.31 and 2.2.32 */
1300 struct smb2_ioctl_req {
1301 	struct smb2_hdr hdr;
1302 	__le16 StructureSize; /* Must be 57 */
1303 	__le16 Reserved; /* offset from start of SMB2 header to write data */
1304 	__le32 CtlCode;
1305 	__u64  PersistentFileId;
1306 	__u64  VolatileFileId;
1307 	__le32 InputOffset; /* Reserved MBZ */
1308 	__le32 InputCount;
1309 	__le32 MaxInputResponse;
1310 	__le32 OutputOffset;
1311 	__le32 OutputCount;
1312 	__le32 MaxOutputResponse;
1313 	__le32 Flags;
1314 	__le32 Reserved2;
1315 	__u8   Buffer[];
1316 } __packed;
1317 
1318 struct smb2_ioctl_rsp {
1319 	struct smb2_hdr hdr;
1320 	__le16 StructureSize; /* Must be 49 */
1321 	__le16 Reserved;
1322 	__le32 CtlCode;
1323 	__u64  PersistentFileId;
1324 	__u64  VolatileFileId;
1325 	__le32 InputOffset; /* Reserved MBZ */
1326 	__le32 InputCount;
1327 	__le32 OutputOffset;
1328 	__le32 OutputCount;
1329 	__le32 Flags;
1330 	__le32 Reserved2;
1331 	__u8   Buffer[];
1332 } __packed;
1333 
1334 /* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
1335 struct file_zero_data_information {
1336 	__le64	FileOffset;
1337 	__le64	BeyondFinalZero;
1338 } __packed;
1339 
1340 /* See MS-FSCC 2.3.7 */
1341 struct duplicate_extents_to_file {
1342 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1343 	__u64 VolatileFileHandle;
1344 	__le64 SourceFileOffset;
1345 	__le64 TargetFileOffset;
1346 	__le64 ByteCount;  /* Bytes to be copied */
1347 } __packed;
1348 
1349 /* See MS-FSCC 2.3.8 */
1350 #define DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC	0x00000001
1351 struct duplicate_extents_to_file_ex {
1352 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1353 	__u64 VolatileFileHandle;
1354 	__le64 SourceFileOffset;
1355 	__le64 TargetFileOffset;
1356 	__le64 ByteCount;  /* Bytes to be copied */
1357 	__le32 Flags;
1358 	__le32 Reserved;
1359 } __packed;
1360 
1361 
1362 /* See MS-FSCC 2.3.20 */
1363 struct fsctl_get_integrity_information_rsp {
1364 	__le16	ChecksumAlgorithm;
1365 	__le16	Reserved;
1366 	__le32	Flags;
1367 	__le32	ChecksumChunkSizeInBytes;
1368 	__le32	ClusterSizeInBytes;
1369 } __packed;
1370 
1371 /* See MS-FSCC 2.3.55 */
1372 struct fsctl_query_file_regions_req {
1373 	__le64	FileOffset;
1374 	__le64	Length;
1375 	__le32	DesiredUsage;
1376 	__le32	Reserved;
1377 } __packed;
1378 
1379 /* DesiredUsage flags see MS-FSCC 2.3.56.1 */
1380 #define FILE_USAGE_INVALID_RANGE	0x00000000
1381 #define FILE_USAGE_VALID_CACHED_DATA	0x00000001
1382 #define FILE_USAGE_NONCACHED_DATA	0x00000002
1383 
1384 struct file_region_info {
1385 	__le64	FileOffset;
1386 	__le64	Length;
1387 	__le32	DesiredUsage;
1388 	__le32	Reserved;
1389 } __packed;
1390 
1391 /* See MS-FSCC 2.3.56 */
1392 struct fsctl_query_file_region_rsp {
1393 	__le32 Flags;
1394 	__le32 TotalRegionEntryCount;
1395 	__le32 RegionEntryCount;
1396 	__u32  Reserved;
1397 	struct  file_region_info Regions[];
1398 } __packed;
1399 
1400 /* See MS-FSCC 2.3.58 */
1401 struct fsctl_query_on_disk_vol_info_rsp {
1402 	__le64	DirectoryCount;
1403 	__le64	FileCount;
1404 	__le16	FsFormatMajVersion;
1405 	__le16	FsFormatMinVersion;
1406 	__u8	FsFormatName[24];
1407 	__le64	FormatTime;
1408 	__le64	LastUpdateTime;
1409 	__u8	CopyrightInfo[68];
1410 	__u8	AbstractInfo[68];
1411 	__u8	FormatImplInfo[68];
1412 	__u8	LastModifyImplInfo[68];
1413 } __packed;
1414 
1415 /* See MS-FSCC 2.3.73 */
1416 struct fsctl_set_integrity_information_req {
1417 	__le16	ChecksumAlgorithm;
1418 	__le16	Reserved;
1419 	__le32	Flags;
1420 } __packed;
1421 
1422 /* See MS-FSCC 2.3.75 */
1423 struct fsctl_set_integrity_info_ex_req {
1424 	__u8	EnableIntegrity;
1425 	__u8	KeepState;
1426 	__u16	Reserved;
1427 	__le32	Flags;
1428 	__u8	Version;
1429 	__u8	Reserved2[7];
1430 } __packed;
1431 
1432 /* Integrity ChecksumAlgorithm choices for above */
1433 #define	CHECKSUM_TYPE_NONE	0x0000
1434 #define	CHECKSUM_TYPE_CRC64	0x0002
1435 #define	CHECKSUM_TYPE_UNCHANGED	0xFFFF	/* set only */
1436 
1437 /* Integrity flags for above */
1438 #define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF	0x00000001
1439 
1440 /* Reparse structures - see MS-FSCC 2.1.2 */
1441 
1442 /* struct fsctl_reparse_info_req is empty, only response structs (see below) */
1443 struct reparse_data_buffer {
1444 	__le32	ReparseTag;
1445 	__le16	ReparseDataLength;
1446 	__u16	Reserved;
1447 	__u8	DataBuffer[]; /* Variable Length */
1448 } __packed;
1449 
1450 struct reparse_guid_data_buffer {
1451 	__le32	ReparseTag;
1452 	__le16	ReparseDataLength;
1453 	__u16	Reserved;
1454 	__u8	ReparseGuid[16];
1455 	__u8	DataBuffer[]; /* Variable Length */
1456 } __packed;
1457 
1458 struct reparse_mount_point_data_buffer {
1459 	__le32	ReparseTag;
1460 	__le16	ReparseDataLength;
1461 	__u16	Reserved;
1462 	__le16	SubstituteNameOffset;
1463 	__le16	SubstituteNameLength;
1464 	__le16	PrintNameOffset;
1465 	__le16	PrintNameLength;
1466 	__u8	PathBuffer[]; /* Variable Length */
1467 } __packed;
1468 
1469 #define SYMLINK_FLAG_RELATIVE 0x00000001
1470 
1471 struct reparse_symlink_data_buffer {
1472 	__le32	ReparseTag;
1473 	__le16	ReparseDataLength;
1474 	__u16	Reserved;
1475 	__le16	SubstituteNameOffset;
1476 	__le16	SubstituteNameLength;
1477 	__le16	PrintNameOffset;
1478 	__le16	PrintNameLength;
1479 	__le32	Flags;
1480 	__u8	PathBuffer[]; /* Variable Length */
1481 } __packed;
1482 
1483 /* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
1484 
1485 struct validate_negotiate_info_req {
1486 	__le32 Capabilities;
1487 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1488 	__le16 SecurityMode;
1489 	__le16 DialectCount;
1490 	__le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
1491 } __packed;
1492 
1493 struct validate_negotiate_info_rsp {
1494 	__le32 Capabilities;
1495 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1496 	__le16 SecurityMode;
1497 	__le16 Dialect; /* Dialect in use for the connection */
1498 } __packed;
1499 
1500 
1501 /* Possible InfoType values */
1502 #define SMB2_O_INFO_FILE	0x01
1503 #define SMB2_O_INFO_FILESYSTEM	0x02
1504 #define SMB2_O_INFO_SECURITY	0x03
1505 #define SMB2_O_INFO_QUOTA	0x04
1506 
1507 /* SMB2 Query Info see MS-SMB2 (2.2.37) or MS-DTYP */
1508 
1509 /* List of QUERY INFO levels (those also valid for QUERY_DIR are noted below */
1510 #define FILE_DIRECTORY_INFORMATION	1	/* also for QUERY_DIR */
1511 #define FILE_FULL_DIRECTORY_INFORMATION 2	/* also for QUERY_DIR */
1512 #define FILE_BOTH_DIRECTORY_INFORMATION 3	/* also for QUERY_DIR */
1513 #define FILE_BASIC_INFORMATION		4
1514 #define FILE_STANDARD_INFORMATION	5
1515 #define FILE_INTERNAL_INFORMATION	6
1516 #define FILE_EA_INFORMATION	        7
1517 #define FILE_ACCESS_INFORMATION		8
1518 #define FILE_NAME_INFORMATION		9
1519 #define FILE_RENAME_INFORMATION		10
1520 #define FILE_LINK_INFORMATION		11
1521 #define FILE_NAMES_INFORMATION		12	/* also for QUERY_DIR */
1522 #define FILE_DISPOSITION_INFORMATION	13
1523 #define FILE_POSITION_INFORMATION	14
1524 #define FILE_FULL_EA_INFORMATION	15
1525 #define FILE_MODE_INFORMATION		16
1526 #define FILE_ALIGNMENT_INFORMATION	17
1527 #define FILE_ALL_INFORMATION		18
1528 #define FILE_ALLOCATION_INFORMATION	19
1529 #define FILE_END_OF_FILE_INFORMATION	20
1530 #define FILE_ALTERNATE_NAME_INFORMATION 21
1531 #define FILE_STREAM_INFORMATION		22
1532 #define FILE_PIPE_INFORMATION		23
1533 #define FILE_PIPE_LOCAL_INFORMATION	24
1534 #define FILE_PIPE_REMOTE_INFORMATION	25
1535 #define FILE_MAILSLOT_QUERY_INFORMATION 26
1536 #define FILE_MAILSLOT_SET_INFORMATION	27
1537 #define FILE_COMPRESSION_INFORMATION	28
1538 #define FILE_OBJECT_ID_INFORMATION	29
1539 /* Number 30 not defined in documents */
1540 #define FILE_MOVE_CLUSTER_INFORMATION	31
1541 #define FILE_QUOTA_INFORMATION		32
1542 #define FILE_REPARSE_POINT_INFORMATION	33
1543 #define FILE_NETWORK_OPEN_INFORMATION	34
1544 #define FILE_ATTRIBUTE_TAG_INFORMATION	35
1545 #define FILE_TRACKING_INFORMATION	36
1546 #define FILEID_BOTH_DIRECTORY_INFORMATION 37	/* also for QUERY_DIR */
1547 #define FILEID_FULL_DIRECTORY_INFORMATION 38	/* also for QUERY_DIR */
1548 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
1549 #define FILE_SHORT_NAME_INFORMATION	40
1550 #define FILE_SFIO_RESERVE_INFORMATION	44
1551 #define FILE_SFIO_VOLUME_INFORMATION	45
1552 #define FILE_HARD_LINK_INFORMATION	46
1553 #define FILE_NORMALIZED_NAME_INFORMATION 48
1554 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1555 #define FILE_STANDARD_LINK_INFORMATION	54
1556 #define FILE_ID_INFORMATION		59
1557 #define FILE_ID_EXTD_DIRECTORY_INFORMATION 60	/* also for QUERY_DIR */
1558 /* Used for Query Info and Find File POSIX Info for SMB3.1.1 and SMB1 */
1559 #define SMB_FIND_FILE_POSIX_INFO	0x064
1560 
1561 /* Security info type additionalinfo flags. */
1562 #define OWNER_SECINFO   0x00000001
1563 #define GROUP_SECINFO   0x00000002
1564 #define DACL_SECINFO   0x00000004
1565 #define SACL_SECINFO   0x00000008
1566 #define LABEL_SECINFO   0x00000010
1567 #define ATTRIBUTE_SECINFO   0x00000020
1568 #define SCOPE_SECINFO   0x00000040
1569 #define BACKUP_SECINFO   0x00010000
1570 #define UNPROTECTED_SACL_SECINFO   0x10000000
1571 #define UNPROTECTED_DACL_SECINFO   0x20000000
1572 #define PROTECTED_SACL_SECINFO   0x40000000
1573 #define PROTECTED_DACL_SECINFO   0x80000000
1574 
1575 /* Flags used for FileFullEAinfo */
1576 #define SL_RESTART_SCAN		0x00000001
1577 #define SL_RETURN_SINGLE_ENTRY	0x00000002
1578 #define SL_INDEX_SPECIFIED	0x00000004
1579 
1580 struct smb2_query_info_req {
1581 	struct smb2_hdr hdr;
1582 	__le16 StructureSize; /* Must be 41 */
1583 	__u8   InfoType;
1584 	__u8   FileInfoClass;
1585 	__le32 OutputBufferLength;
1586 	__le16 InputBufferOffset;
1587 	__u16  Reserved;
1588 	__le32 InputBufferLength;
1589 	__le32 AdditionalInformation;
1590 	__le32 Flags;
1591 	__u64  PersistentFileId;
1592 	__u64  VolatileFileId;
1593 	__u8   Buffer[];
1594 } __packed;
1595 
1596 struct smb2_query_info_rsp {
1597 	struct smb2_hdr hdr;
1598 	__le16 StructureSize; /* Must be 9 */
1599 	__le16 OutputBufferOffset;
1600 	__le32 OutputBufferLength;
1601 	__u8   Buffer[];
1602 } __packed;
1603 
1604 /*
1605  *	PDU query infolevel structure definitions
1606  */
1607 
1608 /* See MS-FSCC 2.3.52 */
1609 struct file_allocated_range_buffer {
1610 	__le64	file_offset;
1611 	__le64	length;
1612 } __packed;
1613 
1614 struct smb2_file_internal_info {
1615 	__le64 IndexNumber;
1616 } __packed; /* level 6 Query */
1617 
1618 struct smb2_file_rename_info { /* encoding of request for level 10 */
1619 	__u8   ReplaceIfExists; /* 1 = replace existing target with new */
1620 				/* 0 = fail if target already exists */
1621 	__u8   Reserved[7];
1622 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1623 	__le32 FileNameLength;
1624 	char   FileName[];     /* New name to be assigned */
1625 	/* padding - overall struct size must be >= 24 so filename + pad >= 6 */
1626 } __packed; /* level 10 Set */
1627 
1628 struct smb2_file_link_info { /* encoding of request for level 11 */
1629 	__u8   ReplaceIfExists; /* 1 = replace existing link with new */
1630 				/* 0 = fail if link already exists */
1631 	__u8   Reserved[7];
1632 	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1633 	__le32 FileNameLength;
1634 	char   FileName[];     /* Name to be assigned to new link */
1635 } __packed; /* level 11 Set */
1636 
1637 /*
1638  * This level 18, although with struct with same name is different from cifs
1639  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1640  * CurrentByteOffset.
1641  */
1642 struct smb2_file_all_info { /* data block encoding of response to level 18 */
1643 	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
1644 	__le64 LastAccessTime;
1645 	__le64 LastWriteTime;
1646 	__le64 ChangeTime;
1647 	__le32 Attributes;
1648 	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
1649 	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1650 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
1651 	__le32 NumberOfLinks;	/* hard links */
1652 	__u8   DeletePending;
1653 	__u8   Directory;
1654 	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
1655 	__le64 IndexNumber;
1656 	__le32 EASize;
1657 	__le32 AccessFlags;
1658 	__le64 CurrentByteOffset;
1659 	__le32 Mode;
1660 	__le32 AlignmentRequirement;
1661 	__le32 FileNameLength;
1662 	union {
1663 		char __pad;	/* Legacy structure padding */
1664 		DECLARE_FLEX_ARRAY(char, FileName);
1665 	};
1666 } __packed; /* level 18 Query */
1667 
1668 struct smb2_file_eof_info { /* encoding of request for level 10 */
1669 	__le64 EndOfFile; /* new end of file value */
1670 } __packed; /* level 20 Set */
1671 
1672 /* Level 100 query info */
1673 struct smb311_posix_qinfo {
1674 	__le64 CreationTime;
1675 	__le64 LastAccessTime;
1676 	__le64 LastWriteTime;
1677 	__le64 ChangeTime;
1678 	__le64 EndOfFile;
1679 	__le64 AllocationSize;
1680 	__le32 DosAttributes;
1681 	__le64 Inode;
1682 	__le32 DeviceId;
1683 	__le32 Zero;
1684 	/* beginning of POSIX Create Context Response */
1685 	__le32 HardLinks;
1686 	__le32 ReparseTag;
1687 	__le32 Mode;
1688 	u8     Sids[];
1689 	/*
1690 	 * var sized owner SID
1691 	 * var sized group SID
1692 	 * le32 filenamelength
1693 	 * u8  filename[]
1694 	 */
1695 } __packed;
1696 
1697 /* File System Information Classes */
1698 #define FS_VOLUME_INFORMATION		1 /* Query */
1699 #define FS_LABEL_INFORMATION		2 /* Set */
1700 #define FS_SIZE_INFORMATION		3 /* Query */
1701 #define FS_DEVICE_INFORMATION		4 /* Query */
1702 #define FS_ATTRIBUTE_INFORMATION	5 /* Query */
1703 #define FS_CONTROL_INFORMATION		6 /* Query, Set */
1704 #define FS_FULL_SIZE_INFORMATION	7 /* Query */
1705 #define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
1706 #define FS_DRIVER_PATH_INFORMATION	9 /* Query */
1707 #define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
1708 #define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */
1709 
1710 struct smb2_fs_full_size_info {
1711 	__le64 TotalAllocationUnits;
1712 	__le64 CallerAvailableAllocationUnits;
1713 	__le64 ActualAvailableAllocationUnits;
1714 	__le32 SectorsPerAllocationUnit;
1715 	__le32 BytesPerSector;
1716 } __packed;
1717 
1718 #define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
1719 #define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1720 #define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
1721 #define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
1722 
1723 /* sector size info struct */
1724 struct smb3_fs_ss_info {
1725 	__le32 LogicalBytesPerSector;
1726 	__le32 PhysicalBytesPerSectorForAtomicity;
1727 	__le32 PhysicalBytesPerSectorForPerf;
1728 	__le32 FSEffPhysicalBytesPerSectorForAtomicity;
1729 	__le32 Flags;
1730 	__le32 ByteOffsetForSectorAlignment;
1731 	__le32 ByteOffsetForPartitionAlignment;
1732 } __packed;
1733 
1734 /* File System Control Information */
1735 struct smb2_fs_control_info {
1736 	__le64 FreeSpaceStartFiltering;
1737 	__le64 FreeSpaceThreshold;
1738 	__le64 FreeSpaceStopFiltering;
1739 	__le64 DefaultQuotaThreshold;
1740 	__le64 DefaultQuotaLimit;
1741 	__le32 FileSystemControlFlags;
1742 	__le32 Padding;
1743 } __packed;
1744 
1745 /* volume info struct - see MS-FSCC 2.5.9 */
1746 #define MAX_VOL_LABEL_LEN	32
1747 struct smb3_fs_vol_info {
1748 	__le64	VolumeCreationTime;
1749 	__u32	VolumeSerialNumber;
1750 	__le32	VolumeLabelLength; /* includes trailing null */
1751 	__u8	SupportsObjects; /* True if eg like NTFS, supports objects */
1752 	__u8	Reserved;
1753 	__u8	VolumeLabel[]; /* variable len */
1754 } __packed;
1755 
1756 /* See MS-SMB2 2.2.23 through 2.2.25 */
1757 struct smb2_oplock_break {
1758 	struct smb2_hdr hdr;
1759 	__le16 StructureSize; /* Must be 24 */
1760 	__u8   OplockLevel;
1761 	__u8   Reserved;
1762 	__le32 Reserved2;
1763 	__u64  PersistentFid;
1764 	__u64  VolatileFid;
1765 } __packed;
1766 
1767 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1768 
1769 struct smb2_lease_break {
1770 	struct smb2_hdr hdr;
1771 	__le16 StructureSize; /* Must be 44 */
1772 	__le16 Epoch;
1773 	__le32 Flags;
1774 	__u8   LeaseKey[16];
1775 	__le32 CurrentLeaseState;
1776 	__le32 NewLeaseState;
1777 	__le32 BreakReason;
1778 	__le32 AccessMaskHint;
1779 	__le32 ShareMaskHint;
1780 } __packed;
1781 
1782 struct smb2_lease_ack {
1783 	struct smb2_hdr hdr;
1784 	__le16 StructureSize; /* Must be 36 */
1785 	__le16 Reserved;
1786 	__le32 Flags;
1787 	__u8   LeaseKey[16];
1788 	__le32 LeaseState;
1789 	__le64 LeaseDuration;
1790 } __packed;
1791 
1792 #define OP_BREAK_STRUCT_SIZE_20		24
1793 #define OP_BREAK_STRUCT_SIZE_21		36
1794 #endif				/* _COMMON_SMB2PDU_H */
1795