1 /* SPDX-License-Identifier: LGPL-2.1 */
2 /*
3  *
4  *   Copyright (c) International Business Machines  Corp., 2002,2009
5  *   Author(s): Steve French (sfrench@us.ibm.com)
6  *
7  */
8 
9 #ifndef _CIFSPDU_H
10 #define _CIFSPDU_H
11 
12 #include <net/sock.h>
13 #include <asm/unaligned.h>
14 #include "../smbfs_common/smbfsctl.h"
15 
16 #define CIFS_PROT   0
17 #define POSIX_PROT  (CIFS_PROT+1)
18 #define BAD_PROT 0xFFFF
19 
20 /* SMB command codes:
21  * Note some commands have minimal (wct=0,bcc=0), or uninteresting, responses
22  * (ie which include no useful data other than the SMB error code itself).
23  * This can allow us to avoid response buffer allocations and copy in some cases
24  */
25 #define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
26 #define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
27 #define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
28 #define SMB_COM_FLUSH                 0x05 /* triv req/rsp */
29 #define SMB_COM_DELETE                0x06 /* trivial response */
30 #define SMB_COM_RENAME                0x07 /* trivial response */
31 #define SMB_COM_QUERY_INFORMATION     0x08 /* aka getattr */
32 #define SMB_COM_SETATTR               0x09 /* trivial response */
33 #define SMB_COM_LOCKING_ANDX          0x24 /* trivial response */
34 #define SMB_COM_COPY                  0x29 /* trivial rsp, fail filename ignrd*/
35 #define SMB_COM_ECHO                  0x2B /* echo request */
36 #define SMB_COM_OPEN_ANDX             0x2D /* Legacy open for old servers */
37 #define SMB_COM_READ_ANDX             0x2E
38 #define SMB_COM_WRITE_ANDX            0x2F
39 #define SMB_COM_TRANSACTION2          0x32
40 #define SMB_COM_TRANSACTION2_SECONDARY 0x33
41 #define SMB_COM_FIND_CLOSE2           0x34 /* trivial response */
42 #define SMB_COM_TREE_DISCONNECT       0x71 /* trivial response */
43 #define SMB_COM_NEGOTIATE             0x72
44 #define SMB_COM_SESSION_SETUP_ANDX    0x73
45 #define SMB_COM_LOGOFF_ANDX           0x74 /* trivial response */
46 #define SMB_COM_TREE_CONNECT_ANDX     0x75
47 #define SMB_COM_NT_TRANSACT           0xA0
48 #define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
49 #define SMB_COM_NT_CREATE_ANDX        0xA2
50 #define SMB_COM_NT_CANCEL             0xA4 /* no response */
51 #define SMB_COM_NT_RENAME             0xA5 /* trivial response */
52 
53 /* Transact2 subcommand codes */
54 #define TRANS2_OPEN                   0x00
55 #define TRANS2_FIND_FIRST             0x01
56 #define TRANS2_FIND_NEXT              0x02
57 #define TRANS2_QUERY_FS_INFORMATION   0x03
58 #define TRANS2_SET_FS_INFORMATION     0x04
59 #define TRANS2_QUERY_PATH_INFORMATION 0x05
60 #define TRANS2_SET_PATH_INFORMATION   0x06
61 #define TRANS2_QUERY_FILE_INFORMATION 0x07
62 #define TRANS2_SET_FILE_INFORMATION   0x08
63 #define TRANS2_GET_DFS_REFERRAL       0x10
64 #define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
65 
66 /* SMB Transact (Named Pipe) subcommand codes */
67 #define TRANS_SET_NMPIPE_STATE      0x0001
68 #define TRANS_RAW_READ_NMPIPE       0x0011
69 #define TRANS_QUERY_NMPIPE_STATE    0x0021
70 #define TRANS_QUERY_NMPIPE_INFO     0x0022
71 #define TRANS_PEEK_NMPIPE           0x0023
72 #define TRANS_TRANSACT_NMPIPE       0x0026
73 #define TRANS_RAW_WRITE_NMPIPE      0x0031
74 #define TRANS_READ_NMPIPE           0x0036
75 #define TRANS_WRITE_NMPIPE          0x0037
76 #define TRANS_WAIT_NMPIPE           0x0053
77 #define TRANS_CALL_NMPIPE           0x0054
78 
79 /* NT Transact subcommand codes */
80 #define NT_TRANSACT_CREATE            0x01
81 #define NT_TRANSACT_IOCTL             0x02
82 #define NT_TRANSACT_SET_SECURITY_DESC 0x03
83 #define NT_TRANSACT_NOTIFY_CHANGE     0x04
84 #define NT_TRANSACT_RENAME            0x05
85 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
86 #define NT_TRANSACT_GET_USER_QUOTA    0x07
87 #define NT_TRANSACT_SET_USER_QUOTA    0x08
88 
89 #define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
90 /* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */
91 /* among the requests (NTCreateX response is bigger with wct of 34) */
92 #define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */
93 #define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */
94 
95 /* internal cifs vfs structures */
96 /*****************************************************************
97  * All constants go here
98  *****************************************************************
99  */
100 
101 /*
102  * Starting value for maximum SMB size negotiation
103  */
104 #define CIFS_MAX_MSGSIZE (4*4096)
105 
106 /*
107  * Size of encrypted user password in bytes
108  */
109 #define CIFS_ENCPWD_SIZE (16)
110 
111 /*
112  * Size of the crypto key returned on the negotiate SMB in bytes
113  */
114 #define CIFS_CRYPTO_KEY_SIZE (8)
115 
116 /*
117  * Size of the ntlm client response
118  */
119 #define CIFS_AUTH_RESP_SIZE (24)
120 
121 /*
122  * Size of the session key (crypto key encrypted with the password
123  */
124 #define CIFS_SESS_KEY_SIZE (16)
125 
126 #define CIFS_SERVER_CHALLENGE_SIZE (8)
127 #define CIFS_HMAC_MD5_HASH_SIZE (16)
128 #define CIFS_CPHTXT_SIZE (16)
129 #define CIFS_NTHASH_SIZE (16)
130 
131 /*
132  * Maximum user name length
133  */
134 #define CIFS_UNLEN (20)
135 
136 /*
137  * Flags on SMB open
138  */
139 #define SMBOPEN_WRITE_THROUGH 0x4000
140 #define SMBOPEN_DENY_ALL      0x0010
141 #define SMBOPEN_DENY_WRITE    0x0020
142 #define SMBOPEN_DENY_READ     0x0030
143 #define SMBOPEN_DENY_NONE     0x0040
144 #define SMBOPEN_READ          0x0000
145 #define SMBOPEN_WRITE         0x0001
146 #define SMBOPEN_READWRITE     0x0002
147 #define SMBOPEN_EXECUTE       0x0003
148 
149 #define SMBOPEN_OCREATE       0x0010
150 #define SMBOPEN_OTRUNC        0x0002
151 #define SMBOPEN_OAPPEND       0x0001
152 
153 /*
154  * SMB flag definitions
155  */
156 #define SMBFLG_EXTD_LOCK 0x01	/* server supports lock-read write-unlock smb */
157 #define SMBFLG_RCV_POSTED 0x02	/* obsolete */
158 #define SMBFLG_RSVD 0x04
159 #define SMBFLG_CASELESS 0x08	/* all pathnames treated as caseless (off
160 				implies case sensitive file handling request) */
161 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10	/* obsolete */
162 #define SMBFLG_OLD_OPLOCK 0x20	/* obsolete */
163 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40	/* obsolete */
164 #define SMBFLG_RESPONSE 0x80	/* this PDU is a response from server */
165 
166 /*
167  * SMB flag2 definitions
168  */
169 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1)	/* can send long (non-8.3)
170 						   path names in response */
171 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
172 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
173 #define SMBFLG2_COMPRESSED (8)
174 #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
175 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
176 #define SMBFLG2_REPARSE_PATH (0x400)
177 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
178 #define SMBFLG2_DFS cpu_to_le16(0x1000)
179 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
180 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
181 #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
182 
183 /*
184  * These are the file access permission bits defined in CIFS for the
185  * NTCreateAndX as well as the level 0x107
186  * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
187  * responds with the AccessFlags.
188  * The AccessFlags specifies the access permissions a caller has to the
189  * file and can have any suitable combination of the following values:
190  */
191 
192 #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
193 #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
194 #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
195 #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
196 					  /* with the file can be read        */
197 #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
198 					  /* with the file can be written     */
199 #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
200 					  /* the file using system paging I/O */
201 #define FILE_DELETE_CHILD     0x00000040
202 #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
203 					  /* file can be read                 */
204 #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
205 					  /* file can be written              */
206 #define DELETE                0x00010000  /* The file can be deleted          */
207 #define READ_CONTROL          0x00020000  /* The access control list and      */
208 					  /* ownership associated with the    */
209 					  /* file can be read                 */
210 #define WRITE_DAC             0x00040000  /* The access control list and      */
211 					  /* ownership associated with the    */
212 					  /* file can be written.             */
213 #define WRITE_OWNER           0x00080000  /* Ownership information associated */
214 					  /* with the file can be written     */
215 #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
216 					  /* synchronize with the completion  */
217 					  /* of an input/output request       */
218 #define SYSTEM_SECURITY       0x01000000  /* The system access control list   */
219 					  /* can be read and changed          */
220 #define GENERIC_ALL           0x10000000
221 #define GENERIC_EXECUTE       0x20000000
222 #define GENERIC_WRITE         0x40000000
223 #define GENERIC_READ          0x80000000
224 					 /* In summary - Relevant file       */
225 					 /* access flags from CIFS are       */
226 					 /* file_read_data, file_write_data  */
227 					 /* file_execute, file_read_attributes*/
228 					 /* write_dac, and delete.           */
229 
230 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
231 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
232 				| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
233 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
234 
235 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
236 				| FILE_READ_ATTRIBUTES \
237 				| FILE_WRITE_ATTRIBUTES \
238 				| DELETE | READ_CONTROL | WRITE_DAC \
239 				| WRITE_OWNER | SYNCHRONIZE)
240 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
241 				| FILE_READ_EA | FILE_WRITE_EA \
242 				| FILE_READ_ATTRIBUTES \
243 				| FILE_WRITE_ATTRIBUTES \
244 				| DELETE | READ_CONTROL | WRITE_DAC \
245 				| WRITE_OWNER | SYNCHRONIZE)
246 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
247 				| FILE_READ_ATTRIBUTES \
248 				| FILE_WRITE_ATTRIBUTES \
249 				| DELETE | READ_CONTROL | WRITE_DAC \
250 				| WRITE_OWNER | SYNCHRONIZE)
251 
252 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
253 				| READ_CONTROL | SYNCHRONIZE)
254 
255 
256 /*
257  * Invalid readdir handle
258  */
259 #define CIFS_NO_HANDLE        0xFFFF
260 
261 #define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
262 
263 /* IPC$ in ASCII */
264 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
265 
266 /* IPC$ in Unicode */
267 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
268 
269 /* Unicode Null terminate 2 bytes of 0 */
270 #define UNICODE_NULL "\x00\x00"
271 #define ASCII_NULL 0x00
272 
273 /*
274  * Server type values (returned on EnumServer API
275  */
276 #define CIFS_SV_TYPE_DC     0x00000008
277 #define CIFS_SV_TYPE_BACKDC 0x00000010
278 
279 /*
280  * Alias type flags (From EnumAlias API call
281  */
282 #define CIFS_ALIAS_TYPE_FILE 0x0001
283 #define CIFS_SHARE_TYPE_FILE 0x0000
284 
285 /*
286  * File Attribute flags
287  */
288 #define ATTR_READONLY  0x0001
289 #define ATTR_HIDDEN    0x0002
290 #define ATTR_SYSTEM    0x0004
291 #define ATTR_VOLUME    0x0008
292 #define ATTR_DIRECTORY 0x0010
293 #define ATTR_ARCHIVE   0x0020
294 #define ATTR_DEVICE    0x0040
295 #define ATTR_NORMAL    0x0080
296 #define ATTR_TEMPORARY 0x0100
297 #define ATTR_SPARSE    0x0200
298 #define ATTR_REPARSE   0x0400
299 #define ATTR_COMPRESSED 0x0800
300 #define ATTR_OFFLINE    0x1000	/* ie file not immediately available -
301 					on offline storage */
302 #define ATTR_NOT_CONTENT_INDEXED 0x2000
303 #define ATTR_ENCRYPTED  0x4000
304 #define ATTR_POSIX_SEMANTICS 0x01000000
305 #define ATTR_BACKUP_SEMANTICS 0x02000000
306 #define ATTR_DELETE_ON_CLOSE 0x04000000
307 #define ATTR_SEQUENTIAL_SCAN 0x08000000
308 #define ATTR_RANDOM_ACCESS   0x10000000
309 #define ATTR_NO_BUFFERING    0x20000000
310 #define ATTR_WRITE_THROUGH   0x80000000
311 
312 /* ShareAccess flags */
313 #define FILE_NO_SHARE     0x00000000
314 #define FILE_SHARE_READ   0x00000001
315 #define FILE_SHARE_WRITE  0x00000002
316 #define FILE_SHARE_DELETE 0x00000004
317 #define FILE_SHARE_ALL    0x00000007
318 
319 /* CreateDisposition flags, similar to CreateAction as well */
320 #define FILE_SUPERSEDE    0x00000000
321 #define FILE_OPEN         0x00000001
322 #define FILE_CREATE       0x00000002
323 #define FILE_OPEN_IF      0x00000003
324 #define FILE_OVERWRITE    0x00000004
325 #define FILE_OVERWRITE_IF 0x00000005
326 
327 /* CreateOptions */
328 #define CREATE_NOT_FILE		0x00000001	/* if set must not be file */
329 #define CREATE_WRITE_THROUGH	0x00000002
330 #define CREATE_SEQUENTIAL       0x00000004
331 #define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
332 #define CREATE_SYNC_ALERT       0x00000010	/* MBZ */
333 #define CREATE_ASYNC_ALERT      0x00000020	/* MBZ */
334 #define CREATE_NOT_DIR		0x00000040    /* if set must not be directory */
335 #define CREATE_TREE_CONNECTION  0x00000080	/* should be zero */
336 #define CREATE_COMPLETE_IF_OPLK 0x00000100	/* should be zero */
337 #define CREATE_NO_EA_KNOWLEDGE  0x00000200
338 #define CREATE_EIGHT_DOT_THREE  0x00000400	/* doc says this is obsolete
339 						 "open for recovery" flag should
340 						 be zero in any case */
341 #define CREATE_OPEN_FOR_RECOVERY 0x00000400
342 #define CREATE_RANDOM_ACCESS	0x00000800
343 #define CREATE_DELETE_ON_CLOSE	0x00001000
344 #define CREATE_OPEN_BY_ID       0x00002000
345 #define CREATE_OPEN_BACKUP_INTENT 0x00004000
346 #define CREATE_NO_COMPRESSION   0x00008000
347 #define CREATE_RESERVE_OPFILTER 0x00100000	/* should be zero */
348 #define OPEN_REPARSE_POINT	0x00200000
349 #define OPEN_NO_RECALL          0x00400000
350 #define OPEN_FREE_SPACE_QUERY   0x00800000	/* should be zero */
351 #define CREATE_OPTIONS_MASK     0x007FFFFF
352 #define CREATE_OPTION_READONLY	0x10000000
353 #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
354 
355 /* ImpersonationLevel flags */
356 #define SECURITY_ANONYMOUS      0
357 #define SECURITY_IDENTIFICATION 1
358 #define SECURITY_IMPERSONATION  2
359 #define SECURITY_DELEGATION     3
360 
361 /* SecurityFlags */
362 #define SECURITY_CONTEXT_TRACKING 0x01
363 #define SECURITY_EFFECTIVE_ONLY   0x02
364 
365 /*
366  * Default PID value, used in all SMBs where the PID is not important
367  */
368 #define CIFS_DFT_PID  0x1234
369 
370 /*
371  * We use the same routine for Copy and Move SMBs.  This flag is used to
372  * distinguish
373  */
374 #define CIFS_COPY_OP 1
375 #define CIFS_RENAME_OP 2
376 
377 #define GETU16(var)  (*((__u16 *)var))	/* BB check for endian issues */
378 #define GETU32(var)  (*((__u32 *)var))	/* BB check for endian issues */
379 
380 struct smb_hdr {
381 	__be32 smb_buf_length;	/* BB length is only two (rarely three) bytes,
382 		with one or two byte "type" preceding it that will be
383 		zero - we could mask the type byte off */
384 	__u8 Protocol[4];
385 	__u8 Command;
386 	union {
387 		struct {
388 			__u8 ErrorClass;
389 			__u8 Reserved;
390 			__le16 Error;
391 		} __attribute__((packed)) DosError;
392 		__le32 CifsError;
393 	} __attribute__((packed)) Status;
394 	__u8 Flags;
395 	__le16 Flags2;		/* note: le */
396 	__le16 PidHigh;
397 	union {
398 		struct {
399 			__le32 SequenceNumber;  /* le */
400 			__u32 Reserved; /* zero */
401 		} __attribute__((packed)) Sequence;
402 		__u8 SecuritySignature[8];	/* le */
403 	} __attribute__((packed)) Signature;
404 	__u8 pad[2];
405 	__u16 Tid;
406 	__le16 Pid;
407 	__u16 Uid;
408 	__le16 Mid;
409 	__u8 WordCount;
410 } __attribute__((packed));
411 
412 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
413 static inline void *
BCC(struct smb_hdr * smb)414 BCC(struct smb_hdr *smb)
415 {
416 	return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
417 }
418 
419 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
420 #define pByteArea(smb_var) (BCC(smb_var) + 2)
421 
422 /* get the unconverted ByteCount for a SMB packet and return it */
423 static inline __u16
get_bcc(struct smb_hdr * hdr)424 get_bcc(struct smb_hdr *hdr)
425 {
426 	__le16 *bc_ptr = (__le16 *)BCC(hdr);
427 
428 	return get_unaligned_le16(bc_ptr);
429 }
430 
431 /* set the ByteCount for a SMB packet in little-endian */
432 static inline void
put_bcc(__u16 count,struct smb_hdr * hdr)433 put_bcc(__u16 count, struct smb_hdr *hdr)
434 {
435 	__le16 *bc_ptr = (__le16 *)BCC(hdr);
436 
437 	put_unaligned_le16(count, bc_ptr);
438 }
439 
440 /*
441  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
442  * No longer as important, now that TCP names are more commonly used to
443  * resolve hosts.
444  */
445 #define CNLEN 15
446 
447 /*
448  * Share Name Length (SNLEN)
449  * Note:  This length was limited by the SMB used to get
450  *        the Share info.   NetShareEnum only returned 13
451  *        chars, including the null termination.
452  * This was removed because it no longer is limiting.
453  */
454 
455 /*
456  * Comment Length
457  */
458 #define MAXCOMMENTLEN 40
459 
460 /*
461  * The OS/2 maximum path name
462  */
463 #define MAX_PATHCONF 256
464 
465 /*
466  *  SMB frame definitions  (following must be packed structs)
467  *  See the SNIA CIFS Specification for details.
468  *
469  *  The Naming convention is the lower case version of the
470  *  smb command code name for the struct and this is typedef to the
471  *  uppercase version of the same name with the prefix SMB_ removed
472  *  for brevity.  Although typedefs are not commonly used for
473  *  structure definitions in the Linux kernel, their use in the
474  *  CIFS standards document, which this code is based on, may
475  *  make this one of the cases where typedefs for structures make
476  *  sense to improve readability for readers of the standards doc.
477  *  Typedefs can always be removed later if they are too distracting
478  *  and they are only used for the CIFSs PDUs themselves, not
479  *  internal cifs vfs structures
480  *
481  */
482 
483 typedef struct negotiate_req {
484 	struct smb_hdr hdr;	/* wct = 0 */
485 	__le16 ByteCount;
486 	unsigned char DialectsArray[];
487 } __attribute__((packed)) NEGOTIATE_REQ;
488 
489 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
490 
491 #define READ_RAW_ENABLE 1
492 #define WRITE_RAW_ENABLE 2
493 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
494 #define SMB1_CLIENT_GUID_SIZE (16)
495 typedef struct negotiate_rsp {
496 	struct smb_hdr hdr;	/* wct = 17 */
497 	__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
498 	__u8 SecurityMode;
499 	__le16 MaxMpxCount;
500 	__le16 MaxNumberVcs;
501 	__le32 MaxBufferSize;
502 	__le32 MaxRawSize;
503 	__le32 SessionKey;
504 	__le32 Capabilities;	/* see below */
505 	__le32 SystemTimeLow;
506 	__le32 SystemTimeHigh;
507 	__le16 ServerTimeZone;
508 	__u8 EncryptionKeyLength;
509 	__u16 ByteCount;
510 	union {
511 		/* cap extended security off */
512 		DECLARE_FLEX_ARRAY(unsigned char, EncryptionKey);
513 		/* followed by Domain name - if extended security is off */
514 		/* followed by 16 bytes of server GUID */
515 		/* then security blob if cap_extended_security negotiated */
516 		struct {
517 			unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
518 			unsigned char SecurityBlob[];
519 		} __attribute__((packed)) extended_response;
520 	} __attribute__((packed)) u;
521 } __attribute__((packed)) NEGOTIATE_RSP;
522 
523 /* SecurityMode bits */
524 #define SECMODE_USER          0x01	/* off indicates share level security */
525 #define SECMODE_PW_ENCRYPT    0x02
526 #define SECMODE_SIGN_ENABLED  0x04	/* SMB security signatures enabled */
527 #define SECMODE_SIGN_REQUIRED 0x08	/* SMB security signatures required */
528 
529 /* Negotiate response Capabilities */
530 #define CAP_RAW_MODE           0x00000001
531 #define CAP_MPX_MODE           0x00000002
532 #define CAP_UNICODE            0x00000004
533 #define CAP_LARGE_FILES        0x00000008
534 #define CAP_NT_SMBS            0x00000010	/* implies CAP_NT_FIND */
535 #define CAP_RPC_REMOTE_APIS    0x00000020
536 #define CAP_STATUS32           0x00000040
537 #define CAP_LEVEL_II_OPLOCKS   0x00000080
538 #define CAP_LOCK_AND_READ      0x00000100
539 #define CAP_NT_FIND            0x00000200
540 #define CAP_DFS                0x00001000
541 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
542 #define CAP_LARGE_READ_X       0x00004000
543 #define CAP_LARGE_WRITE_X      0x00008000
544 #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
545 #define CAP_UNIX               0x00800000
546 #define CAP_COMPRESSED_DATA    0x02000000
547 #define CAP_DYNAMIC_REAUTH     0x20000000
548 #define CAP_PERSISTENT_HANDLES 0x40000000
549 #define CAP_EXTENDED_SECURITY  0x80000000
550 
551 typedef union smb_com_session_setup_andx {
552 	struct {		/* request format */
553 		struct smb_hdr hdr;	/* wct = 12 */
554 		__u8 AndXCommand;
555 		__u8 AndXReserved;
556 		__le16 AndXOffset;
557 		__le16 MaxBufferSize;
558 		__le16 MaxMpxCount;
559 		__le16 VcNumber;
560 		__u32 SessionKey;
561 		__le16 SecurityBlobLength;
562 		__u32 Reserved;
563 		__le32 Capabilities;	/* see below */
564 		__le16 ByteCount;
565 		unsigned char SecurityBlob[1];	/* followed by */
566 		/* STRING NativeOS */
567 		/* STRING NativeLanMan */
568 	} __attribute__((packed)) req;	/* NTLM request format (with
569 					extended security */
570 
571 	struct {		/* request format */
572 		struct smb_hdr hdr;	/* wct = 13 */
573 		__u8 AndXCommand;
574 		__u8 AndXReserved;
575 		__le16 AndXOffset;
576 		__le16 MaxBufferSize;
577 		__le16 MaxMpxCount;
578 		__le16 VcNumber;
579 		__u32 SessionKey;
580 		__le16 CaseInsensitivePasswordLength; /* ASCII password len */
581 		__le16 CaseSensitivePasswordLength; /* Unicode password length*/
582 		__u32 Reserved;	/* see below */
583 		__le32 Capabilities;
584 		__le16 ByteCount;
585 		unsigned char CaseInsensitivePassword[1];     /* followed by: */
586 		/* unsigned char * CaseSensitivePassword; */
587 		/* STRING AccountName */
588 		/* STRING PrimaryDomain */
589 		/* STRING NativeOS */
590 		/* STRING NativeLanMan */
591 	} __attribute__((packed)) req_no_secext; /* NTLM request format (without
592 							extended security */
593 
594 	struct {		/* default (NTLM) response format */
595 		struct smb_hdr hdr;	/* wct = 4 */
596 		__u8 AndXCommand;
597 		__u8 AndXReserved;
598 		__le16 AndXOffset;
599 		__le16 Action;	/* see below */
600 		__le16 SecurityBlobLength;
601 		__u16 ByteCount;
602 		unsigned char SecurityBlob[1];	/* followed by */
603 /*      unsigned char  * NativeOS;      */
604 /*	unsigned char  * NativeLanMan;  */
605 /*      unsigned char  * PrimaryDomain; */
606 	} __attribute__((packed)) resp;	/* NTLM response
607 					   (with or without extended sec) */
608 
609 	struct {		/* request format */
610 		struct smb_hdr hdr;	/* wct = 10 */
611 		__u8 AndXCommand;
612 		__u8 AndXReserved;
613 		__le16 AndXOffset;
614 		__le16 MaxBufferSize;
615 		__le16 MaxMpxCount;
616 		__le16 VcNumber;
617 		__u32 SessionKey;
618 		__le16 PasswordLength;
619 		__u32 Reserved; /* encrypt key len and offset */
620 		__le16 ByteCount;
621 		unsigned char AccountPassword[1];	/* followed by */
622 		/* STRING AccountName */
623 		/* STRING PrimaryDomain */
624 		/* STRING NativeOS */
625 		/* STRING NativeLanMan */
626 	} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
627 
628 	struct {		/* default (NTLM) response format */
629 		struct smb_hdr hdr;	/* wct = 3 */
630 		__u8 AndXCommand;
631 		__u8 AndXReserved;
632 		__le16 AndXOffset;
633 		__le16 Action;	/* see below */
634 		__u16 ByteCount;
635 		unsigned char NativeOS[1];	/* followed by */
636 /*	unsigned char * NativeLanMan; */
637 /*      unsigned char * PrimaryDomain; */
638 	} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
639 } __attribute__((packed)) SESSION_SETUP_ANDX;
640 
641 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
642 
643 #define NTLMSSP_SERVER_TYPE	1
644 #define NTLMSSP_DOMAIN_TYPE	2
645 #define NTLMSSP_FQ_DOMAIN_TYPE	3
646 #define NTLMSSP_DNS_DOMAIN_TYPE	4
647 #define NTLMSSP_DNS_PARENT_TYPE	5
648 
649 struct ntlmssp2_name {
650 	__le16 type;
651 	__le16 length;
652 /*	char   name[length]; */
653 } __attribute__((packed));
654 
655 struct ntlmv2_resp {
656 	union {
657 	    char ntlmv2_hash[CIFS_ENCPWD_SIZE];
658 	    struct {
659 		__u8 reserved[8];
660 		__u8 key[CIFS_SERVER_CHALLENGE_SIZE];
661 	    } __attribute__((packed)) challenge;
662 	} __attribute__((packed));
663 	__le32 blob_signature;
664 	__u32  reserved;
665 	__le64  time;
666 	__u64  client_chal; /* random */
667 	__u32  reserved2;
668 	/* array of name entries could follow ending in minimum 4 byte struct */
669 } __attribute__((packed));
670 
671 
672 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
673 
674 /* Capabilities bits (for NTLM SessSetup request) */
675 #define CAP_UNICODE            0x00000004
676 #define CAP_LARGE_FILES        0x00000008
677 #define CAP_NT_SMBS            0x00000010
678 #define CAP_STATUS32           0x00000040
679 #define CAP_LEVEL_II_OPLOCKS   0x00000080
680 #define CAP_NT_FIND            0x00000200	/* reserved should be zero
681 				(because NT_SMBs implies the same thing?) */
682 #define CAP_BULK_TRANSFER      0x20000000
683 #define CAP_EXTENDED_SECURITY  0x80000000
684 
685 /* Action bits */
686 #define GUEST_LOGIN 1
687 
688 typedef struct smb_com_tconx_req {
689 	struct smb_hdr hdr;	/* wct = 4 */
690 	__u8 AndXCommand;
691 	__u8 AndXReserved;
692 	__le16 AndXOffset;
693 	__le16 Flags;		/* see below */
694 	__le16 PasswordLength;
695 	__le16 ByteCount;
696 	unsigned char Password[1];	/* followed by */
697 /* STRING Path    *//* \\server\share name */
698 	/* STRING Service */
699 } __attribute__((packed)) TCONX_REQ;
700 
701 typedef struct smb_com_tconx_rsp {
702 	struct smb_hdr hdr;	/* wct = 3 , not extended response */
703 	__u8 AndXCommand;
704 	__u8 AndXReserved;
705 	__le16 AndXOffset;
706 	__le16 OptionalSupport;	/* see below */
707 	__u16 ByteCount;
708 	unsigned char Service[1];	/* always ASCII, not Unicode */
709 	/* STRING NativeFileSystem */
710 } __attribute__((packed)) TCONX_RSP;
711 
712 typedef struct smb_com_tconx_rsp_ext {
713 	struct smb_hdr hdr;	/* wct = 7, extended response */
714 	__u8 AndXCommand;
715 	__u8 AndXReserved;
716 	__le16 AndXOffset;
717 	__le16 OptionalSupport;	/* see below */
718 	__le32 MaximalShareAccessRights;
719 	__le32 GuestMaximalShareAccessRights;
720 	__u16 ByteCount;
721 	unsigned char Service[1];	/* always ASCII, not Unicode */
722 	/* STRING NativeFileSystem */
723 } __attribute__((packed)) TCONX_RSP_EXT;
724 
725 
726 /* tree connect Flags */
727 #define DISCONNECT_TID          0x0001
728 #define TCON_EXTENDED_SIGNATURES 0x0004
729 #define TCON_EXTENDED_SECINFO   0x0008
730 
731 /* OptionalSupport bits */
732 #define SMB_SUPPORT_SEARCH_BITS 0x0001	/* "must have" directory search bits
733 					 (exclusive searches supported) */
734 #define SMB_SHARE_IS_IN_DFS     0x0002
735 #define SMB_CSC_MASK               0x000C
736 /* CSC flags defined as follows */
737 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
738 #define SMB_CSC_CACHE_AUTO_REINT   0x0004
739 #define SMB_CSC_CACHE_VDO          0x0008
740 #define SMB_CSC_NO_CACHING         0x000C
741 #define SMB_UNIQUE_FILE_NAME    0x0010
742 #define SMB_EXTENDED_SIGNATURES 0x0020
743 
744 /* services
745  *
746  * A:       ie disk
747  * LPT1:    ie printer
748  * IPC      ie named pipe
749  * COMM
750  * ?????    ie any type
751  *
752  */
753 
754 typedef struct smb_com_echo_req {
755 	struct	smb_hdr hdr;
756 	__le16	EchoCount;
757 	__le16	ByteCount;
758 	char	Data[1];
759 } __attribute__((packed)) ECHO_REQ;
760 
761 typedef struct smb_com_echo_rsp {
762 	struct	smb_hdr hdr;
763 	__le16	SequenceNumber;
764 	__le16	ByteCount;
765 	char	Data[1];
766 } __attribute__((packed)) ECHO_RSP;
767 
768 typedef struct smb_com_logoff_andx_req {
769 	struct smb_hdr hdr;	/* wct = 2 */
770 	__u8 AndXCommand;
771 	__u8 AndXReserved;
772 	__u16 AndXOffset;
773 	__u16 ByteCount;
774 } __attribute__((packed)) LOGOFF_ANDX_REQ;
775 
776 typedef struct smb_com_logoff_andx_rsp {
777 	struct smb_hdr hdr;	/* wct = 2 */
778 	__u8 AndXCommand;
779 	__u8 AndXReserved;
780 	__u16 AndXOffset;
781 	__u16 ByteCount;
782 } __attribute__((packed)) LOGOFF_ANDX_RSP;
783 
784 typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
785 					tree_connect PDU to effect disconnect */
786 					/* tdis is probably simplest SMB PDU */
787 	struct {
788 		struct smb_hdr hdr;	/* wct = 0 */
789 		__u16 ByteCount;	/* bcc = 0 */
790 	} __attribute__((packed)) req;
791 	struct {
792 		struct smb_hdr hdr;	/* wct = 0 */
793 		__u16 ByteCount;	/* bcc = 0 */
794 	} __attribute__((packed)) resp;
795 } __attribute__((packed)) TREE_DISCONNECT;
796 
797 typedef struct smb_com_close_req {
798 	struct smb_hdr hdr;	/* wct = 3 */
799 	__u16 FileID;
800 	__u32 LastWriteTime;	/* should be zero or -1 */
801 	__u16 ByteCount;	/* 0 */
802 } __attribute__((packed)) CLOSE_REQ;
803 
804 typedef struct smb_com_close_rsp {
805 	struct smb_hdr hdr;	/* wct = 0 */
806 	__u16 ByteCount;	/* bct = 0 */
807 } __attribute__((packed)) CLOSE_RSP;
808 
809 typedef struct smb_com_flush_req {
810 	struct smb_hdr hdr;	/* wct = 1 */
811 	__u16 FileID;
812 	__u16 ByteCount;	/* 0 */
813 } __attribute__((packed)) FLUSH_REQ;
814 
815 typedef struct smb_com_findclose_req {
816 	struct smb_hdr hdr; /* wct = 1 */
817 	__u16 FileID;
818 	__u16 ByteCount;    /* 0 */
819 } __attribute__((packed)) FINDCLOSE_REQ;
820 
821 /* OpenFlags */
822 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
823 #define REQ_OPLOCK         0x00000002
824 #define REQ_BATCHOPLOCK    0x00000004
825 #define REQ_OPENDIRONLY    0x00000008
826 #define REQ_EXTENDED_INFO  0x00000010
827 
828 /* File type */
829 #define DISK_TYPE		0x0000
830 #define BYTE_PIPE_TYPE		0x0001
831 #define MESSAGE_PIPE_TYPE	0x0002
832 #define PRINTER_TYPE		0x0003
833 #define COMM_DEV_TYPE		0x0004
834 #define UNKNOWN_TYPE		0xFFFF
835 
836 /* Device Type or File Status Flags */
837 #define NO_EAS			0x0001
838 #define NO_SUBSTREAMS		0x0002
839 #define NO_REPARSETAG		0x0004
840 /* following flags can apply if pipe */
841 #define ICOUNT_MASK		0x00FF
842 #define PIPE_READ_MODE		0x0100
843 #define NAMED_PIPE_TYPE		0x0400
844 #define PIPE_END_POINT		0x4000
845 #define BLOCKING_NAMED_PIPE	0x8000
846 
847 typedef struct smb_com_open_req {	/* also handles create */
848 	struct smb_hdr hdr;	/* wct = 24 */
849 	__u8 AndXCommand;
850 	__u8 AndXReserved;
851 	__le16 AndXOffset;
852 	__u8 Reserved;		/* Must Be Zero */
853 	__le16 NameLength;
854 	__le32 OpenFlags;
855 	__u32  RootDirectoryFid;
856 	__le32 DesiredAccess;
857 	__le64 AllocationSize;
858 	__le32 FileAttributes;
859 	__le32 ShareAccess;
860 	__le32 CreateDisposition;
861 	__le32 CreateOptions;
862 	__le32 ImpersonationLevel;
863 	__u8 SecurityFlags;
864 	__le16 ByteCount;
865 	char fileName[1];
866 } __attribute__((packed)) OPEN_REQ;
867 
868 /* open response: oplock levels */
869 #define OPLOCK_NONE  	 0
870 #define OPLOCK_EXCLUSIVE 1
871 #define OPLOCK_BATCH	 2
872 #define OPLOCK_READ	 3  /* level 2 oplock */
873 
874 /* open response for CreateAction shifted left */
875 #define CIFS_CREATE_ACTION 0x20000 /* file created */
876 
877 typedef struct smb_com_open_rsp {
878 	struct smb_hdr hdr;	/* wct = 34 BB */
879 	__u8 AndXCommand;
880 	__u8 AndXReserved;
881 	__le16 AndXOffset;
882 	__u8 OplockLevel;
883 	__u16 Fid;
884 	__le32 CreateAction;
885 	__le64 CreationTime;
886 	__le64 LastAccessTime;
887 	__le64 LastWriteTime;
888 	__le64 ChangeTime;
889 	__le32 FileAttributes;
890 	__le64 AllocationSize;
891 	__le64 EndOfFile;
892 	__le16 FileType;
893 	__le16 DeviceState;
894 	__u8 DirectoryFlag;
895 	__u16 ByteCount;	/* bct = 0 */
896 } __attribute__((packed)) OPEN_RSP;
897 
898 typedef struct smb_com_open_rsp_ext {
899 	struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
900 	__u8 AndXCommand;
901 	__u8 AndXReserved;
902 	__le16 AndXOffset;
903 	__u8 OplockLevel;
904 	__u16 Fid;
905 	__le32 CreateAction;
906 	__le64 CreationTime;
907 	__le64 LastAccessTime;
908 	__le64 LastWriteTime;
909 	__le64 ChangeTime;
910 	__le32 FileAttributes;
911 	__le64 AllocationSize;
912 	__le64 EndOfFile;
913 	__le16 FileType;
914 	__le16 DeviceState;
915 	__u8 DirectoryFlag;
916 	__u8 VolumeGUID[16];
917 	__u64 FileId; /* note no endian conversion - is opaque UniqueID */
918 	__le32 MaximalAccessRights;
919 	__le32 GuestMaximalAccessRights;
920 	__u16 ByteCount;        /* bct = 0 */
921 } __attribute__((packed)) OPEN_RSP_EXT;
922 
923 
924 /* format of legacy open request */
925 typedef struct smb_com_openx_req {
926 	struct smb_hdr	hdr;	/* wct = 15 */
927 	__u8 AndXCommand;
928 	__u8 AndXReserved;
929 	__le16 AndXOffset;
930 	__le16 OpenFlags;
931 	__le16 Mode;
932 	__le16 Sattr; /* search attributes */
933 	__le16 FileAttributes;  /* dos attrs */
934 	__le32 CreateTime; /* os2 format */
935 	__le16 OpenFunction;
936 	__le32 EndOfFile;
937 	__le32 Timeout;
938 	__le32 Reserved;
939 	__le16  ByteCount;  /* file name follows */
940 	char   fileName[1];
941 } __attribute__((packed)) OPENX_REQ;
942 
943 typedef struct smb_com_openx_rsp {
944 	struct smb_hdr	hdr;	/* wct = 15 */
945 	__u8 AndXCommand;
946 	__u8 AndXReserved;
947 	__le16 AndXOffset;
948 	__u16  Fid;
949 	__le16 FileAttributes;
950 	__le32 LastWriteTime; /* os2 format */
951 	__le32 EndOfFile;
952 	__le16 Access;
953 	__le16 FileType;
954 	__le16 IPCState;
955 	__le16 Action;
956 	__u32  FileId;
957 	__u16  Reserved;
958 	__u16  ByteCount;
959 } __attribute__((packed)) OPENX_RSP;
960 
961 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
962 
963 /* Legacy write request for older servers */
964 typedef struct smb_com_writex_req {
965 	struct smb_hdr hdr;     /* wct = 12 */
966 	__u8 AndXCommand;
967 	__u8 AndXReserved;
968 	__le16 AndXOffset;
969 	__u16 Fid;
970 	__le32 OffsetLow;
971 	__u32 Reserved; /* Timeout */
972 	__le16 WriteMode; /* 1 = write through */
973 	__le16 Remaining;
974 	__le16 Reserved2;
975 	__le16 DataLengthLow;
976 	__le16 DataOffset;
977 	__le16 ByteCount;
978 	__u8 Pad;		/* BB check for whether padded to DWORD
979 				   boundary and optimum performance here */
980 	char Data[];
981 } __attribute__((packed)) WRITEX_REQ;
982 
983 typedef struct smb_com_write_req {
984 	struct smb_hdr hdr;	/* wct = 14 */
985 	__u8 AndXCommand;
986 	__u8 AndXReserved;
987 	__le16 AndXOffset;
988 	__u16 Fid;
989 	__le32 OffsetLow;
990 	__u32 Reserved;
991 	__le16 WriteMode;
992 	__le16 Remaining;
993 	__le16 DataLengthHigh;
994 	__le16 DataLengthLow;
995 	__le16 DataOffset;
996 	__le32 OffsetHigh;
997 	__le16 ByteCount;
998 	__u8 Pad;		/* BB check for whether padded to DWORD
999 				   boundary and optimum performance here */
1000 	char Data[];
1001 } __attribute__((packed)) WRITE_REQ;
1002 
1003 typedef struct smb_com_write_rsp {
1004 	struct smb_hdr hdr;	/* wct = 6 */
1005 	__u8 AndXCommand;
1006 	__u8 AndXReserved;
1007 	__le16 AndXOffset;
1008 	__le16 Count;
1009 	__le16 Remaining;
1010 	__le16 CountHigh;
1011 	__u16  Reserved;
1012 	__u16 ByteCount;
1013 } __attribute__((packed)) WRITE_RSP;
1014 
1015 /* legacy read request for older servers */
1016 typedef struct smb_com_readx_req {
1017 	struct smb_hdr hdr;	/* wct = 10 */
1018 	__u8 AndXCommand;
1019 	__u8 AndXReserved;
1020 	__le16 AndXOffset;
1021 	__u16 Fid;
1022 	__le32 OffsetLow;
1023 	__le16 MaxCount;
1024 	__le16 MinCount;	/* obsolete */
1025 	__le32 Reserved;
1026 	__le16 Remaining;
1027 	__le16 ByteCount;
1028 } __attribute__((packed)) READX_REQ;
1029 
1030 typedef struct smb_com_read_req {
1031 	struct smb_hdr hdr;	/* wct = 12 */
1032 	__u8 AndXCommand;
1033 	__u8 AndXReserved;
1034 	__le16 AndXOffset;
1035 	__u16 Fid;
1036 	__le32 OffsetLow;
1037 	__le16 MaxCount;
1038 	__le16 MinCount;		/* obsolete */
1039 	__le32 MaxCountHigh;
1040 	__le16 Remaining;
1041 	__le32 OffsetHigh;
1042 	__le16 ByteCount;
1043 } __attribute__((packed)) READ_REQ;
1044 
1045 typedef struct smb_com_read_rsp {
1046 	struct smb_hdr hdr;	/* wct = 12 */
1047 	__u8 AndXCommand;
1048 	__u8 AndXReserved;
1049 	__le16 AndXOffset;
1050 	__le16 Remaining;
1051 	__le16 DataCompactionMode;
1052 	__le16 Reserved;
1053 	__le16 DataLength;
1054 	__le16 DataOffset;
1055 	__le16 DataLengthHigh;
1056 	__u64 Reserved2;
1057 	__u16 ByteCount;
1058 	/* read response data immediately follows */
1059 } __attribute__((packed)) READ_RSP;
1060 
1061 typedef struct locking_andx_range {
1062 	__le16 Pid;
1063 	__le16 Pad;
1064 	__le32 OffsetHigh;
1065 	__le32 OffsetLow;
1066 	__le32 LengthHigh;
1067 	__le32 LengthLow;
1068 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1069 
1070 #define LOCKING_ANDX_SHARED_LOCK     0x01
1071 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1072 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1073 #define LOCKING_ANDX_CANCEL_LOCK     0x08
1074 #define LOCKING_ANDX_LARGE_FILES     0x10	/* always on for us */
1075 
1076 typedef struct smb_com_lock_req {
1077 	struct smb_hdr hdr;	/* wct = 8 */
1078 	__u8 AndXCommand;
1079 	__u8 AndXReserved;
1080 	__le16 AndXOffset;
1081 	__u16 Fid;
1082 	__u8 LockType;
1083 	__u8 OplockLevel;
1084 	__le32 Timeout;
1085 	__le16 NumberOfUnlocks;
1086 	__le16 NumberOfLocks;
1087 	__le16 ByteCount;
1088 	LOCKING_ANDX_RANGE Locks[1];
1089 } __attribute__((packed)) LOCK_REQ;
1090 
1091 /* lock type */
1092 #define CIFS_RDLCK	0
1093 #define CIFS_WRLCK	1
1094 #define CIFS_UNLCK      2
1095 typedef struct cifs_posix_lock {
1096 	__le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1097 	__le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1098 	__le32  pid;
1099 	__le64	start;
1100 	__le64	length;
1101 	/* BB what about additional owner info to identify network client */
1102 } __attribute__((packed)) CIFS_POSIX_LOCK;
1103 
1104 typedef struct smb_com_lock_rsp {
1105 	struct smb_hdr hdr;	/* wct = 2 */
1106 	__u8 AndXCommand;
1107 	__u8 AndXReserved;
1108 	__le16 AndXOffset;
1109 	__u16 ByteCount;
1110 } __attribute__((packed)) LOCK_RSP;
1111 
1112 typedef struct smb_com_rename_req {
1113 	struct smb_hdr hdr;	/* wct = 1 */
1114 	__le16 SearchAttributes;	/* target file attributes */
1115 	__le16 ByteCount;
1116 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1117 	unsigned char OldFileName[1];
1118 	/* followed by __u8 BufferFormat2 */
1119 	/* followed by NewFileName */
1120 } __attribute__((packed)) RENAME_REQ;
1121 
1122 	/* copy request flags */
1123 #define COPY_MUST_BE_FILE      0x0001
1124 #define COPY_MUST_BE_DIR       0x0002
1125 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1126 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1127 #define COPY_VERIFY_WRITES     0x0010
1128 #define COPY_TREE              0x0020
1129 
1130 typedef struct smb_com_copy_req {
1131 	struct smb_hdr hdr;	/* wct = 3 */
1132 	__u16 Tid2;
1133 	__le16 OpenFunction;
1134 	__le16 Flags;
1135 	__le16 ByteCount;
1136 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1137 	unsigned char OldFileName[1];
1138 	/* followed by __u8 BufferFormat2 */
1139 	/* followed by NewFileName string */
1140 } __attribute__((packed)) COPY_REQ;
1141 
1142 typedef struct smb_com_copy_rsp {
1143 	struct smb_hdr hdr;     /* wct = 1 */
1144 	__le16 CopyCount;    /* number of files copied */
1145 	__u16 ByteCount;    /* may be zero */
1146 	__u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1147 	unsigned char ErrorFileName[1]; /* only present if error in copy */
1148 } __attribute__((packed)) COPY_RSP;
1149 
1150 #define CREATE_HARD_LINK		0x103
1151 #define MOVEFILE_COPY_ALLOWED		0x0002
1152 #define MOVEFILE_REPLACE_EXISTING	0x0001
1153 
1154 typedef struct smb_com_nt_rename_req {	/* A5 - also used for create hardlink */
1155 	struct smb_hdr hdr;	/* wct = 4 */
1156 	__le16 SearchAttributes;	/* target file attributes */
1157 	__le16 Flags;		/* spec says Information Level */
1158 	__le32 ClusterCount;
1159 	__le16 ByteCount;
1160 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1161 	unsigned char OldFileName[1];
1162 	/* followed by __u8 BufferFormat2 */
1163 	/* followed by NewFileName */
1164 } __attribute__((packed)) NT_RENAME_REQ;
1165 
1166 typedef struct smb_com_rename_rsp {
1167 	struct smb_hdr hdr;	/* wct = 0 */
1168 	__u16 ByteCount;	/* bct = 0 */
1169 } __attribute__((packed)) RENAME_RSP;
1170 
1171 typedef struct smb_com_delete_file_req {
1172 	struct smb_hdr hdr;	/* wct = 1 */
1173 	__le16 SearchAttributes;
1174 	__le16 ByteCount;
1175 	__u8 BufferFormat;	/* 4 = ASCII */
1176 	unsigned char fileName[1];
1177 } __attribute__((packed)) DELETE_FILE_REQ;
1178 
1179 typedef struct smb_com_delete_file_rsp {
1180 	struct smb_hdr hdr;	/* wct = 0 */
1181 	__u16 ByteCount;	/* bct = 0 */
1182 } __attribute__((packed)) DELETE_FILE_RSP;
1183 
1184 typedef struct smb_com_delete_directory_req {
1185 	struct smb_hdr hdr;	/* wct = 0 */
1186 	__le16 ByteCount;
1187 	__u8 BufferFormat;	/* 4 = ASCII */
1188 	unsigned char DirName[1];
1189 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1190 
1191 typedef struct smb_com_delete_directory_rsp {
1192 	struct smb_hdr hdr;	/* wct = 0 */
1193 	__u16 ByteCount;	/* bct = 0 */
1194 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1195 
1196 typedef struct smb_com_create_directory_req {
1197 	struct smb_hdr hdr;	/* wct = 0 */
1198 	__le16 ByteCount;
1199 	__u8 BufferFormat;	/* 4 = ASCII */
1200 	unsigned char DirName[1];
1201 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1202 
1203 typedef struct smb_com_create_directory_rsp {
1204 	struct smb_hdr hdr;	/* wct = 0 */
1205 	__u16 ByteCount;	/* bct = 0 */
1206 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1207 
1208 typedef struct smb_com_query_information_req {
1209 	struct smb_hdr hdr;     /* wct = 0 */
1210 	__le16 ByteCount;	/* 1 + namelen + 1 */
1211 	__u8 BufferFormat;      /* 4 = ASCII */
1212 	unsigned char FileName[1];
1213 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1214 
1215 typedef struct smb_com_query_information_rsp {
1216 	struct smb_hdr hdr;     /* wct = 10 */
1217 	__le16 attr;
1218 	__le32  last_write_time;
1219 	__le32 size;
1220 	__u16  reserved[5];
1221 	__le16 ByteCount;	/* bcc = 0 */
1222 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1223 
1224 typedef struct smb_com_setattr_req {
1225 	struct smb_hdr hdr; /* wct = 8 */
1226 	__le16 attr;
1227 	__le16 time_low;
1228 	__le16 time_high;
1229 	__le16 reserved[5]; /* must be zero */
1230 	__u16  ByteCount;
1231 	__u8   BufferFormat; /* 4 = ASCII */
1232 	unsigned char fileName[1];
1233 } __attribute__((packed)) SETATTR_REQ;
1234 
1235 typedef struct smb_com_setattr_rsp {
1236 	struct smb_hdr hdr;     /* wct = 0 */
1237 	__u16 ByteCount;        /* bct = 0 */
1238 } __attribute__((packed)) SETATTR_RSP;
1239 
1240 /* empty wct response to setattr */
1241 
1242 /*******************************************************/
1243 /* NT Transact structure definitions follow            */
1244 /* Currently only ioctl, acl (get security descriptor) */
1245 /* and notify are implemented                          */
1246 /*******************************************************/
1247 typedef struct smb_com_ntransact_req {
1248 	struct smb_hdr hdr; /* wct >= 19 */
1249 	__u8 MaxSetupCount;
1250 	__u16 Reserved;
1251 	__le32 TotalParameterCount;
1252 	__le32 TotalDataCount;
1253 	__le32 MaxParameterCount;
1254 	__le32 MaxDataCount;
1255 	__le32 ParameterCount;
1256 	__le32 ParameterOffset;
1257 	__le32 DataCount;
1258 	__le32 DataOffset;
1259 	__u8 SetupCount; /* four setup words follow subcommand */
1260 	/* SNIA spec incorrectly included spurious pad here */
1261 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1262 	/* SetupCount words follow then */
1263 	__le16 ByteCount;
1264 	__u8 Pad[3];
1265 	__u8 Parms[];
1266 } __attribute__((packed)) NTRANSACT_REQ;
1267 
1268 typedef struct smb_com_ntransact_rsp {
1269 	struct smb_hdr hdr;     /* wct = 18 */
1270 	__u8 Reserved[3];
1271 	__le32 TotalParameterCount;
1272 	__le32 TotalDataCount;
1273 	__le32 ParameterCount;
1274 	__le32 ParameterOffset;
1275 	__le32 ParameterDisplacement;
1276 	__le32 DataCount;
1277 	__le32 DataOffset;
1278 	__le32 DataDisplacement;
1279 	__u8 SetupCount;   /* 0 */
1280 	__u16 ByteCount;
1281 	/* __u8 Pad[3]; */
1282 	/* parms and data follow */
1283 } __attribute__((packed)) NTRANSACT_RSP;
1284 
1285 /* See MS-SMB 2.2.7.2.1.1 */
1286 struct srv_copychunk {
1287 	__le64 SourceOffset;
1288 	__le64 DestinationOffset;
1289 	__le32 CopyLength;
1290 	__u32  Reserved;
1291 } __packed;
1292 
1293 typedef struct smb_com_transaction_ioctl_req {
1294 	struct smb_hdr hdr;	/* wct = 23 */
1295 	__u8 MaxSetupCount;
1296 	__u16 Reserved;
1297 	__le32 TotalParameterCount;
1298 	__le32 TotalDataCount;
1299 	__le32 MaxParameterCount;
1300 	__le32 MaxDataCount;
1301 	__le32 ParameterCount;
1302 	__le32 ParameterOffset;
1303 	__le32 DataCount;
1304 	__le32 DataOffset;
1305 	__u8 SetupCount; /* four setup words follow subcommand */
1306 	/* SNIA spec incorrectly included spurious pad here */
1307 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1308 	__le32 FunctionCode;
1309 	__u16 Fid;
1310 	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1311 	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1312 	__le16 ByteCount;
1313 	__u8 Pad[3];
1314 	__u8 Data[1];
1315 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1316 
1317 typedef struct smb_com_transaction_compr_ioctl_req {
1318 	struct smb_hdr hdr;	/* wct = 23 */
1319 	__u8 MaxSetupCount;
1320 	__u16 Reserved;
1321 	__le32 TotalParameterCount;
1322 	__le32 TotalDataCount;
1323 	__le32 MaxParameterCount;
1324 	__le32 MaxDataCount;
1325 	__le32 ParameterCount;
1326 	__le32 ParameterOffset;
1327 	__le32 DataCount;
1328 	__le32 DataOffset;
1329 	__u8 SetupCount; /* four setup words follow subcommand */
1330 	/* SNIA spec incorrectly included spurious pad here */
1331 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1332 	__le32 FunctionCode;
1333 	__u16 Fid;
1334 	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1335 	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1336 	__le16 ByteCount;
1337 	__u8 Pad[3];
1338 	__le16 compression_state;  /* See below for valid flags */
1339 } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
1340 
1341 /* compression state flags */
1342 #define COMPRESSION_FORMAT_NONE		0x0000
1343 #define COMPRESSION_FORMAT_DEFAULT	0x0001
1344 #define COMPRESSION_FORMAT_LZNT1	0x0002
1345 
1346 typedef struct smb_com_transaction_ioctl_rsp {
1347 	struct smb_hdr hdr;	/* wct = 19 */
1348 	__u8 Reserved[3];
1349 	__le32 TotalParameterCount;
1350 	__le32 TotalDataCount;
1351 	__le32 ParameterCount;
1352 	__le32 ParameterOffset;
1353 	__le32 ParameterDisplacement;
1354 	__le32 DataCount;
1355 	__le32 DataOffset;
1356 	__le32 DataDisplacement;
1357 	__u8 SetupCount;	/* 1 */
1358 	__le16 ReturnedDataLen;
1359 	__u16 ByteCount;
1360 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1361 
1362 #define CIFS_ACL_OWNER 1
1363 #define CIFS_ACL_GROUP 2
1364 #define CIFS_ACL_DACL  4
1365 #define CIFS_ACL_SACL  8
1366 
1367 typedef struct smb_com_transaction_qsec_req {
1368 	struct smb_hdr hdr;     /* wct = 19 */
1369 	__u8 MaxSetupCount;
1370 	__u16 Reserved;
1371 	__le32 TotalParameterCount;
1372 	__le32 TotalDataCount;
1373 	__le32 MaxParameterCount;
1374 	__le32 MaxDataCount;
1375 	__le32 ParameterCount;
1376 	__le32 ParameterOffset;
1377 	__le32 DataCount;
1378 	__le32 DataOffset;
1379 	__u8 SetupCount; /* no setup words follow subcommand */
1380 	/* SNIA spec incorrectly included spurious pad here */
1381 	__le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1382 	__le16 ByteCount; /* bcc = 3 + 8 */
1383 	__u8 Pad[3];
1384 	__u16 Fid;
1385 	__u16 Reserved2;
1386 	__le32 AclFlags;
1387 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1388 
1389 
1390 typedef struct smb_com_transaction_ssec_req {
1391 	struct smb_hdr hdr;     /* wct = 19 */
1392 	__u8 MaxSetupCount;
1393 	__u16 Reserved;
1394 	__le32 TotalParameterCount;
1395 	__le32 TotalDataCount;
1396 	__le32 MaxParameterCount;
1397 	__le32 MaxDataCount;
1398 	__le32 ParameterCount;
1399 	__le32 ParameterOffset;
1400 	__le32 DataCount;
1401 	__le32 DataOffset;
1402 	__u8 SetupCount; /* no setup words follow subcommand */
1403 	/* SNIA spec incorrectly included spurious pad here */
1404 	__le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1405 	__le16 ByteCount; /* bcc = 3 + 8 */
1406 	__u8 Pad[3];
1407 	__u16 Fid;
1408 	__u16 Reserved2;
1409 	__le32 AclFlags;
1410 } __attribute__((packed)) SET_SEC_DESC_REQ;
1411 
1412 typedef struct smb_com_transaction_change_notify_req {
1413 	struct smb_hdr hdr;     /* wct = 23 */
1414 	__u8 MaxSetupCount;
1415 	__u16 Reserved;
1416 	__le32 TotalParameterCount;
1417 	__le32 TotalDataCount;
1418 	__le32 MaxParameterCount;
1419 	__le32 MaxDataCount;
1420 	__le32 ParameterCount;
1421 	__le32 ParameterOffset;
1422 	__le32 DataCount;
1423 	__le32 DataOffset;
1424 	__u8 SetupCount; /* four setup words follow subcommand */
1425 	/* SNIA spec incorrectly included spurious pad here */
1426 	__le16 SubCommand;/* 4 = Change Notify */
1427 	__le32 CompletionFilter;  /* operation to monitor */
1428 	__u16 Fid;
1429 	__u8 WatchTree;  /* 1 = Monitor subdirectories */
1430 	__u8 Reserved2;
1431 	__le16 ByteCount;
1432 /* 	__u8 Pad[3];*/
1433 /*	__u8 Data[1];*/
1434 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1435 
1436 /* BB eventually change to use generic ntransact rsp struct
1437       and validation routine */
1438 typedef struct smb_com_transaction_change_notify_rsp {
1439 	struct smb_hdr hdr;	/* wct = 18 */
1440 	__u8 Reserved[3];
1441 	__le32 TotalParameterCount;
1442 	__le32 TotalDataCount;
1443 	__le32 ParameterCount;
1444 	__le32 ParameterOffset;
1445 	__le32 ParameterDisplacement;
1446 	__le32 DataCount;
1447 	__le32 DataOffset;
1448 	__le32 DataDisplacement;
1449 	__u8 SetupCount;   /* 0 */
1450 	__u16 ByteCount;
1451 	/* __u8 Pad[3]; */
1452 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1453 /* Completion Filter flags for Notify */
1454 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1455 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1456 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1457 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1458 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1459 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1460 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1461 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1462 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1463 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1464 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1465 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1466 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1467 
1468 #define FILE_ACTION_ADDED		0x00000001
1469 #define FILE_ACTION_REMOVED		0x00000002
1470 #define FILE_ACTION_MODIFIED		0x00000003
1471 #define FILE_ACTION_RENAMED_OLD_NAME	0x00000004
1472 #define FILE_ACTION_RENAMED_NEW_NAME	0x00000005
1473 #define FILE_ACTION_ADDED_STREAM	0x00000006
1474 #define FILE_ACTION_REMOVED_STREAM	0x00000007
1475 #define FILE_ACTION_MODIFIED_STREAM	0x00000008
1476 
1477 /* response contains array of the following structures */
1478 struct file_notify_information {
1479 	__le32 NextEntryOffset;
1480 	__le32 Action;
1481 	__le32 FileNameLength;
1482 	__u8  FileName[];
1483 } __attribute__((packed));
1484 
1485 /* For IO_REPARSE_TAG_SYMLINK */
1486 struct reparse_symlink_data {
1487 	__le32	ReparseTag;
1488 	__le16	ReparseDataLength;
1489 	__u16	Reserved;
1490 	__le16	SubstituteNameOffset;
1491 	__le16	SubstituteNameLength;
1492 	__le16	PrintNameOffset;
1493 	__le16	PrintNameLength;
1494 	__le32	Flags;
1495 	char	PathBuffer[];
1496 } __attribute__((packed));
1497 
1498 /* Flag above */
1499 #define SYMLINK_FLAG_RELATIVE 0x00000001
1500 
1501 /* For IO_REPARSE_TAG_NFS */
1502 #define NFS_SPECFILE_LNK	0x00000000014B4E4C
1503 #define NFS_SPECFILE_CHR	0x0000000000524843
1504 #define NFS_SPECFILE_BLK	0x00000000004B4C42
1505 #define NFS_SPECFILE_FIFO	0x000000004F464946
1506 #define NFS_SPECFILE_SOCK	0x000000004B434F53
1507 struct reparse_posix_data {
1508 	__le32	ReparseTag;
1509 	__le16	ReparseDataLength;
1510 	__u16	Reserved;
1511 	__le64	InodeType; /* LNK, FIFO, CHR etc. */
1512 	char	PathBuffer[];
1513 } __attribute__((packed));
1514 
1515 struct cifs_quota_data {
1516 	__u32	rsrvd1;  /* 0 */
1517 	__u32	sid_size;
1518 	__u64	rsrvd2;  /* 0 */
1519 	__u64	space_used;
1520 	__u64	soft_limit;
1521 	__u64	hard_limit;
1522 	char	sid[1];  /* variable size? */
1523 } __attribute__((packed));
1524 
1525 /* quota sub commands */
1526 #define QUOTA_LIST_CONTINUE	    0
1527 #define QUOTA_LIST_START	0x100
1528 #define QUOTA_FOR_SID		0x101
1529 
1530 struct trans2_req {
1531 	/* struct smb_hdr hdr precedes. Set wct = 14+ */
1532 	__le16 TotalParameterCount;
1533 	__le16 TotalDataCount;
1534 	__le16 MaxParameterCount;
1535 	__le16 MaxDataCount;
1536 	__u8 MaxSetupCount;
1537 	__u8 Reserved;
1538 	__le16 Flags;
1539 	__le32 Timeout;
1540 	__u16 Reserved2;
1541 	__le16 ParameterCount;
1542 	__le16 ParameterOffset;
1543 	__le16 DataCount;
1544 	__le16 DataOffset;
1545 	__u8 SetupCount;
1546 	__u8 Reserved3;
1547 	__le16 SubCommand; /* 1st setup word - SetupCount words follow */
1548 	__le16 ByteCount;
1549 } __attribute__((packed));
1550 
1551 struct smb_t2_req {
1552 	struct smb_hdr hdr;
1553 	struct trans2_req t2_req;
1554 } __attribute__((packed));
1555 
1556 struct trans2_resp {
1557 	/* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1558 	__le16 TotalParameterCount;
1559 	__le16 TotalDataCount;
1560 	__u16 Reserved;
1561 	__le16 ParameterCount;
1562 	__le16 ParameterOffset;
1563 	__le16 ParameterDisplacement;
1564 	__le16 DataCount;
1565 	__le16 DataOffset;
1566 	__le16 DataDisplacement;
1567 	__u8 SetupCount;
1568 	__u8 Reserved1;
1569 	/* SetupWords[SetupCount];
1570 	__u16 ByteCount;
1571 	__u16 Reserved2;*/
1572 	/* data area follows */
1573 } __attribute__((packed));
1574 
1575 struct smb_t2_rsp {
1576 	struct smb_hdr hdr;
1577 	struct trans2_resp t2_rsp;
1578 } __attribute__((packed));
1579 
1580 /* PathInfo/FileInfo infolevels */
1581 #define SMB_INFO_STANDARD                   1
1582 #define SMB_SET_FILE_EA                     2
1583 #define SMB_QUERY_FILE_EA_SIZE              2
1584 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1585 #define SMB_INFO_QUERY_ALL_EAS              4
1586 #define SMB_INFO_IS_NAME_VALID              6
1587 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1588 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1589 #define SMB_QUERY_FILE_EA_INFO          0x103
1590 #define SMB_QUERY_FILE_NAME_INFO        0x104
1591 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1592 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1593 #define SMB_QUERY_FILE_ALL_INFO         0x107
1594 #define SMB_QUERY_ALT_NAME_INFO         0x108
1595 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1596 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1597 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1598 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1599 #define SMB_QUERY_POSIX_ACL             0x204
1600 #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1601 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1602 #define SMB_QUERY_POSIX_PERMISSION      0x207
1603 #define SMB_QUERY_POSIX_LOCK            0x208
1604 /* #define SMB_POSIX_OPEN               0x209 */
1605 /* #define SMB_POSIX_UNLINK             0x20a */
1606 #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1607 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1608 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1609 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1610 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1611 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1612 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1613 
1614 
1615 #define SMB_SET_FILE_BASIC_INFO	        0x101
1616 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1617 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1618 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1619 #define SMB_SET_FILE_UNIX_BASIC         0x200
1620 #define SMB_SET_FILE_UNIX_LINK          0x201
1621 #define SMB_SET_FILE_UNIX_HLINK         0x203
1622 #define SMB_SET_POSIX_ACL               0x204
1623 #define SMB_SET_XATTR                   0x205
1624 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1625 #define SMB_SET_POSIX_LOCK              0x208
1626 #define SMB_POSIX_OPEN                  0x209
1627 #define SMB_POSIX_UNLINK                0x20a
1628 #define SMB_SET_FILE_UNIX_INFO2         0x20b
1629 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1630 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1631 #define SMB_FILE_ALL_INFO2              0x3fa
1632 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1633 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1634 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1635 #define SMB_FILE_QUOTA_INFO             0x408
1636 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1637 #define SMB_FILE_MAXIMUM_INFO           0x40d
1638 
1639 /* Find File infolevels */
1640 #define SMB_FIND_FILE_INFO_STANDARD       0x001
1641 #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1642 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1643 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1644 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1645 #define SMB_FIND_FILE_NAMES_INFO          0x103
1646 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1647 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1648 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1649 #define SMB_FIND_FILE_UNIX                0x202
1650 /* #define SMB_FIND_FILE_POSIX_INFO          0x064 */
1651 
1652 typedef struct smb_com_transaction2_qpi_req {
1653 	struct smb_hdr hdr;	/* wct = 14+ */
1654 	__le16 TotalParameterCount;
1655 	__le16 TotalDataCount;
1656 	__le16 MaxParameterCount;
1657 	__le16 MaxDataCount;
1658 	__u8 MaxSetupCount;
1659 	__u8 Reserved;
1660 	__le16 Flags;
1661 	__le32 Timeout;
1662 	__u16 Reserved2;
1663 	__le16 ParameterCount;
1664 	__le16 ParameterOffset;
1665 	__le16 DataCount;
1666 	__le16 DataOffset;
1667 	__u8 SetupCount;
1668 	__u8 Reserved3;
1669 	__le16 SubCommand;	/* one setup word */
1670 	__le16 ByteCount;
1671 	__u8 Pad;
1672 	__le16 InformationLevel;
1673 	__u32 Reserved4;
1674 	char FileName[1];
1675 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1676 
1677 typedef struct smb_com_transaction2_qpi_rsp {
1678 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1679 	struct trans2_resp t2;
1680 	__u16 ByteCount;
1681 	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1682 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1683 
1684 typedef struct smb_com_transaction2_spi_req {
1685 	struct smb_hdr hdr;	/* wct = 15 */
1686 	__le16 TotalParameterCount;
1687 	__le16 TotalDataCount;
1688 	__le16 MaxParameterCount;
1689 	__le16 MaxDataCount;
1690 	__u8 MaxSetupCount;
1691 	__u8 Reserved;
1692 	__le16 Flags;
1693 	__le32 Timeout;
1694 	__u16 Reserved2;
1695 	__le16 ParameterCount;
1696 	__le16 ParameterOffset;
1697 	__le16 DataCount;
1698 	__le16 DataOffset;
1699 	__u8 SetupCount;
1700 	__u8 Reserved3;
1701 	__le16 SubCommand;	/* one setup word */
1702 	__le16 ByteCount;
1703 	__u8 Pad;
1704 	__u16 Pad1;
1705 	__le16 InformationLevel;
1706 	__u32 Reserved4;
1707 	char FileName[1];
1708 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1709 
1710 typedef struct smb_com_transaction2_spi_rsp {
1711 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1712 	struct trans2_resp t2;
1713 	__u16 ByteCount;
1714 	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1715 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1716 
1717 struct set_file_rename {
1718 	__le32 overwrite;   /* 1 = overwrite dest */
1719 	__u32 root_fid;   /* zero */
1720 	__le32 target_name_len;
1721 	char  target_name[];  /* Must be unicode */
1722 } __attribute__((packed));
1723 
1724 struct smb_com_transaction2_sfi_req {
1725 	struct smb_hdr hdr;	/* wct = 15 */
1726 	__le16 TotalParameterCount;
1727 	__le16 TotalDataCount;
1728 	__le16 MaxParameterCount;
1729 	__le16 MaxDataCount;
1730 	__u8 MaxSetupCount;
1731 	__u8 Reserved;
1732 	__le16 Flags;
1733 	__le32 Timeout;
1734 	__u16 Reserved2;
1735 	__le16 ParameterCount;
1736 	__le16 ParameterOffset;
1737 	__le16 DataCount;
1738 	__le16 DataOffset;
1739 	__u8 SetupCount;
1740 	__u8 Reserved3;
1741 	__le16 SubCommand;	/* one setup word */
1742 	__le16 ByteCount;
1743 	__u8 Pad;
1744 	__u16 Pad1;
1745 	__u16 Fid;
1746 	__le16 InformationLevel;
1747 	__u16 Reserved4;
1748 	__u8  payload[];
1749 } __attribute__((packed));
1750 
1751 struct smb_com_transaction2_sfi_rsp {
1752 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1753 	struct trans2_resp t2;
1754 	__u16 ByteCount;
1755 	__u16 Reserved2;	/* parameter word reserved -
1756 					present for infolevels > 100 */
1757 } __attribute__((packed));
1758 
1759 struct smb_t2_qfi_req {
1760 	struct	smb_hdr hdr;
1761 	struct	trans2_req t2;
1762 	__u8	Pad;
1763 	__u16	Fid;
1764 	__le16	InformationLevel;
1765 } __attribute__((packed));
1766 
1767 struct smb_t2_qfi_rsp {
1768 	struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1769 	struct trans2_resp t2;
1770 	__u16 ByteCount;
1771 	__u16 Reserved2;        /* parameter word reserved -
1772 				   present for infolevels > 100 */
1773 } __attribute__((packed));
1774 
1775 /*
1776  * Flags on T2 FINDFIRST and FINDNEXT
1777  */
1778 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1779 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1780 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1781 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1782 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1783 
1784 /*
1785  * Size of the resume key on FINDFIRST and FINDNEXT calls
1786  */
1787 #define CIFS_SMB_RESUME_KEY_SIZE 4
1788 
1789 typedef struct smb_com_transaction2_ffirst_req {
1790 	struct smb_hdr hdr;	/* wct = 15 */
1791 	__le16 TotalParameterCount;
1792 	__le16 TotalDataCount;
1793 	__le16 MaxParameterCount;
1794 	__le16 MaxDataCount;
1795 	__u8 MaxSetupCount;
1796 	__u8 Reserved;
1797 	__le16 Flags;
1798 	__le32 Timeout;
1799 	__u16 Reserved2;
1800 	__le16 ParameterCount;
1801 	__le16 ParameterOffset;
1802 	__le16 DataCount;
1803 	__le16 DataOffset;
1804 	__u8 SetupCount;	/* one */
1805 	__u8 Reserved3;
1806 	__le16 SubCommand;	/* TRANS2_FIND_FIRST */
1807 	__le16 ByteCount;
1808 	__u8 Pad;
1809 	__le16 SearchAttributes;
1810 	__le16 SearchCount;
1811 	__le16 SearchFlags;
1812 	__le16 InformationLevel;
1813 	__le32 SearchStorageType;
1814 	char FileName[1];
1815 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1816 
1817 typedef struct smb_com_transaction2_ffirst_rsp {
1818 	struct smb_hdr hdr;	/* wct = 10 */
1819 	struct trans2_resp t2;
1820 	__u16 ByteCount;
1821 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1822 
1823 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1824 	__u16 SearchHandle;
1825 	__le16 SearchCount;
1826 	__le16 EndofSearch;
1827 	__le16 EAErrorOffset;
1828 	__le16 LastNameOffset;
1829 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1830 
1831 typedef struct smb_com_transaction2_fnext_req {
1832 	struct smb_hdr hdr;	/* wct = 15 */
1833 	__le16 TotalParameterCount;
1834 	__le16 TotalDataCount;
1835 	__le16 MaxParameterCount;
1836 	__le16 MaxDataCount;
1837 	__u8 MaxSetupCount;
1838 	__u8 Reserved;
1839 	__le16 Flags;
1840 	__le32 Timeout;
1841 	__u16 Reserved2;
1842 	__le16 ParameterCount;
1843 	__le16 ParameterOffset;
1844 	__le16 DataCount;
1845 	__le16 DataOffset;
1846 	__u8 SetupCount;	/* one */
1847 	__u8 Reserved3;
1848 	__le16 SubCommand;	/* TRANS2_FIND_NEXT */
1849 	__le16 ByteCount;
1850 	__u8 Pad;
1851 	__u16 SearchHandle;
1852 	__le16 SearchCount;
1853 	__le16 InformationLevel;
1854 	__u32 ResumeKey;
1855 	__le16 SearchFlags;
1856 	char ResumeFileName[];
1857 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1858 
1859 typedef struct smb_com_transaction2_fnext_rsp {
1860 	struct smb_hdr hdr;	/* wct = 10 */
1861 	struct trans2_resp t2;
1862 	__u16 ByteCount;
1863 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1864 
1865 typedef struct smb_com_transaction2_fnext_rsp_parms {
1866 	__le16 SearchCount;
1867 	__le16 EndofSearch;
1868 	__le16 EAErrorOffset;
1869 	__le16 LastNameOffset;
1870 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1871 
1872 /* QFSInfo Levels */
1873 #define SMB_INFO_ALLOCATION         1
1874 #define SMB_INFO_VOLUME             2
1875 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1876 #define SMB_QUERY_FS_SIZE_INFO      0x103
1877 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1878 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1879 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1880 #define SMB_QUERY_POSIX_FS_INFO     0x201
1881 #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1882 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1883 #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1884 					    FILE_SYSTEM__UNIX_INFO to tell
1885 					    whether new NTIOCTL available
1886 					    (0xACE) for WAN friendly SMB
1887 					    operations to be carried */
1888 #define SMB_QUERY_LABEL_INFO        0x3ea
1889 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1890 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1891 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1892 
1893 typedef struct smb_com_transaction2_qfsi_req {
1894 	struct smb_hdr hdr;	/* wct = 14+ */
1895 	__le16 TotalParameterCount;
1896 	__le16 TotalDataCount;
1897 	__le16 MaxParameterCount;
1898 	__le16 MaxDataCount;
1899 	__u8 MaxSetupCount;
1900 	__u8 Reserved;
1901 	__le16 Flags;
1902 	__le32 Timeout;
1903 	__u16 Reserved2;
1904 	__le16 ParameterCount;
1905 	__le16 ParameterOffset;
1906 	__le16 DataCount;
1907 	__le16 DataOffset;
1908 	__u8 SetupCount;
1909 	__u8 Reserved3;
1910 	__le16 SubCommand;	/* one setup word */
1911 	__le16 ByteCount;
1912 	__u8 Pad;
1913 	__le16 InformationLevel;
1914 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1915 
1916 typedef struct smb_com_transaction_qfsi_rsp {
1917 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1918 	struct trans2_resp t2;
1919 	__u16 ByteCount;
1920 	__u8 Pad;	/* may be three bytes? *//* followed by data area */
1921 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1922 
1923 typedef struct whoami_rsp_data { /* Query level 0x202 */
1924 	__u32 flags; /* 0 = Authenticated user 1 = GUEST */
1925 	__u32 mask; /* which flags bits server understands ie 0x0001 */
1926 	__u64 unix_user_id;
1927 	__u64 unix_user_gid;
1928 	__u32 number_of_supplementary_gids; /* may be zero */
1929 	__u32 number_of_sids; /* may be zero */
1930 	__u32 length_of_sid_array; /* in bytes - may be zero */
1931 	__u32 pad; /* reserved - MBZ */
1932 	/* __u64 gid_array[0]; */  /* may be empty */
1933 	/* __u8 * psid_list */  /* may be empty */
1934 } __attribute__((packed)) WHOAMI_RSP_DATA;
1935 
1936 /* SETFSInfo Levels */
1937 #define SMB_SET_CIFS_UNIX_INFO    0x200
1938 /* level 0x203 is defined above in list of QFS info levels */
1939 /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
1940 
1941 /* Level 0x200 request structure follows */
1942 typedef struct smb_com_transaction2_setfsi_req {
1943 	struct smb_hdr hdr;	/* wct = 15 */
1944 	__le16 TotalParameterCount;
1945 	__le16 TotalDataCount;
1946 	__le16 MaxParameterCount;
1947 	__le16 MaxDataCount;
1948 	__u8 MaxSetupCount;
1949 	__u8 Reserved;
1950 	__le16 Flags;
1951 	__le32 Timeout;
1952 	__u16 Reserved2;
1953 	__le16 ParameterCount;	/* 4 */
1954 	__le16 ParameterOffset;
1955 	__le16 DataCount;	/* 12 */
1956 	__le16 DataOffset;
1957 	__u8 SetupCount;	/* one */
1958 	__u8 Reserved3;
1959 	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
1960 	__le16 ByteCount;
1961 	__u8 Pad;
1962 	__u16 FileNum;		/* Parameters start. */
1963 	__le16 InformationLevel;/* Parameters end. */
1964 	__le16 ClientUnixMajor; /* Data start. */
1965 	__le16 ClientUnixMinor;
1966 	__le64 ClientUnixCap;   /* Data end */
1967 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
1968 
1969 /* level 0x203 request structure follows */
1970 typedef struct smb_com_transaction2_setfs_enc_req {
1971 	struct smb_hdr hdr;	/* wct = 15 */
1972 	__le16 TotalParameterCount;
1973 	__le16 TotalDataCount;
1974 	__le16 MaxParameterCount;
1975 	__le16 MaxDataCount;
1976 	__u8 MaxSetupCount;
1977 	__u8 Reserved;
1978 	__le16 Flags;
1979 	__le32 Timeout;
1980 	__u16 Reserved2;
1981 	__le16 ParameterCount;	/* 4 */
1982 	__le16 ParameterOffset;
1983 	__le16 DataCount;	/* 12 */
1984 	__le16 DataOffset;
1985 	__u8 SetupCount;	/* one */
1986 	__u8 Reserved3;
1987 	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
1988 	__le16 ByteCount;
1989 	__u8 Pad;
1990 	__u16  Reserved4;	/* Parameters start. */
1991 	__le16 InformationLevel;/* Parameters end. */
1992 	/* NTLMSSP Blob, Data start. */
1993 } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
1994 
1995 /* response for setfsinfo levels 0x200 and 0x203 */
1996 typedef struct smb_com_transaction2_setfsi_rsp {
1997 	struct smb_hdr hdr;	/* wct = 10 */
1998 	struct trans2_resp t2;
1999 	__u16 ByteCount;
2000 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
2001 
2002 typedef struct smb_com_transaction2_get_dfs_refer_req {
2003 	struct smb_hdr hdr;	/* wct = 15 */
2004 	__le16 TotalParameterCount;
2005 	__le16 TotalDataCount;
2006 	__le16 MaxParameterCount;
2007 	__le16 MaxDataCount;
2008 	__u8 MaxSetupCount;
2009 	__u8 Reserved;
2010 	__le16 Flags;
2011 	__le32 Timeout;
2012 	__u16 Reserved2;
2013 	__le16 ParameterCount;
2014 	__le16 ParameterOffset;
2015 	__le16 DataCount;
2016 	__le16 DataOffset;
2017 	__u8 SetupCount;
2018 	__u8 Reserved3;
2019 	__le16 SubCommand;	/* one setup word */
2020 	__le16 ByteCount;
2021 	__u8 Pad[3];		/* Win2K has sent 0x0F01 (max response length
2022 				   perhaps?) followed by one byte pad - doesn't
2023 				   seem to matter though */
2024 	__le16 MaxReferralLevel;
2025 	char RequestFileName[1];
2026 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
2027 
2028 #define DFS_VERSION cpu_to_le16(0x0003)
2029 
2030 /* DFS server target type */
2031 #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
2032 #define DFS_TYPE_ROOT 0x0001
2033 
2034 /* Referral Entry Flags */
2035 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
2036 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2037 
2038 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2039 	__le16 VersionNumber;  /* must be 3 or 4 */
2040 	__le16 Size;
2041 	__le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2042 	__le16 ReferralEntryFlags;
2043 	__le32 TimeToLive;
2044 	__le16 DfsPathOffset;
2045 	__le16 DfsAlternatePathOffset;
2046 	__le16 NetworkAddressOffset; /* offset of the link target */
2047 	__u8   ServiceSiteGuid[16];  /* MBZ, ignored */
2048 } __attribute__((packed)) REFERRAL3;
2049 
2050 struct get_dfs_referral_rsp {
2051 	__le16 PathConsumed;
2052 	__le16 NumberOfReferrals;
2053 	__le32 DFSFlags;
2054 	REFERRAL3 referrals[1];	/* array of level 3 dfs_referral structures */
2055 	/* followed by the strings pointed to by the referral structures */
2056 } __packed;
2057 
2058 typedef struct smb_com_transaction_get_dfs_refer_rsp {
2059 	struct smb_hdr hdr;	/* wct = 10 */
2060 	struct trans2_resp t2;
2061 	__u16 ByteCount;
2062 	__u8 Pad;
2063 	struct get_dfs_referral_rsp dfs_data;
2064 } __packed TRANSACTION2_GET_DFS_REFER_RSP;
2065 
2066 /* DFS Flags */
2067 #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2068 #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2069 #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2070 
2071 /*
2072  ************************************************************************
2073  * All structs for everything above the SMB PDUs themselves
2074  * (such as the T2 level specific data) go here
2075  ************************************************************************
2076  */
2077 
2078 /*
2079  * Information on a server
2080  */
2081 
2082 struct serverInfo {
2083 	char name[16];
2084 	unsigned char versionMajor;
2085 	unsigned char versionMinor;
2086 	unsigned long type;
2087 	unsigned int commentOffset;
2088 } __attribute__((packed));
2089 
2090 /*
2091  * The following structure is the format of the data returned on a NetShareEnum
2092  * with level "90" (x5A)
2093  */
2094 
2095 struct shareInfo {
2096 	char shareName[13];
2097 	char pad;
2098 	unsigned short type;
2099 	unsigned int commentOffset;
2100 } __attribute__((packed));
2101 
2102 struct aliasInfo {
2103 	char aliasName[9];
2104 	char pad;
2105 	unsigned int commentOffset;
2106 	unsigned char type[2];
2107 } __attribute__((packed));
2108 
2109 struct aliasInfo92 {
2110 	int aliasNameOffset;
2111 	int serverNameOffset;
2112 	int shareNameOffset;
2113 } __attribute__((packed));
2114 
2115 typedef struct {
2116 	__le64 TotalAllocationUnits;
2117 	__le64 FreeAllocationUnits;
2118 	__le32 SectorsPerAllocationUnit;
2119 	__le32 BytesPerSector;
2120 } __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */
2121 
2122 typedef struct {
2123 	__le32 fsid;
2124 	__le32 SectorsPerAllocationUnit;
2125 	__le32 TotalAllocationUnits;
2126 	__le32 FreeAllocationUnits;
2127 	__le16  BytesPerSector;
2128 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2129 
2130 typedef struct {
2131 	__le16 MajorVersionNumber;
2132 	__le16 MinorVersionNumber;
2133 	__le64 Capability;
2134 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2135 
2136 /* Version numbers for CIFS UNIX major and minor. */
2137 #define CIFS_UNIX_MAJOR_VERSION 1
2138 #define CIFS_UNIX_MINOR_VERSION 0
2139 
2140 /* Linux/Unix extensions capability flags */
2141 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2142 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2143 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2144 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2145 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2146 #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2147 						      calls including posix open
2148 						      and posix unlink */
2149 #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
2150 						      to 0xFFFF00 */
2151 #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2152 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2153 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2154 #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
2155 						      QFS PROXY call */
2156 #ifdef CONFIG_CIFS_POSIX
2157 /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
2158    LockingX instead of posix locking call on unix sess (and we do not expect
2159    LockingX to use different (ie Windows) semantics than posix locking on
2160    the same session (if WINE needs to do this later, we can add this cap
2161    back in later */
2162 /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2163 #define CIFS_UNIX_CAP_MASK              0x000003db
2164 #else
2165 #define CIFS_UNIX_CAP_MASK              0x00000013
2166 #endif /* CONFIG_CIFS_POSIX */
2167 
2168 
2169 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2170 
2171 typedef struct {
2172 	/* For undefined recommended transfer size return -1 in that field */
2173 	__le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2174 	__le32 BlockSize;
2175     /* The next three fields are in terms of the block size.
2176 	(above). If block size is unknown, 4096 would be a
2177 	reasonable block size for a server to report.
2178 	Note that returning the blocks/blocksavail removes need
2179 	to make a second call (to QFSInfo level 0x103 to get this info.
2180 	UserBlockAvail is typically less than or equal to BlocksAvail,
2181 	if no distinction is made return the same value in each */
2182 	__le64 TotalBlocks;
2183 	__le64 BlocksAvail;       /* bfree */
2184 	__le64 UserBlocksAvail;   /* bavail */
2185     /* For undefined Node fields or FSID return -1 */
2186 	__le64 TotalFileNodes;
2187 	__le64 FreeFileNodes;
2188 	__le64 FileSysIdentifier;   /* fsid */
2189 	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2190 	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2191 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2192 
2193 /* DeviceType Flags */
2194 #define FILE_DEVICE_CD_ROM              0x00000002
2195 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2196 #define FILE_DEVICE_DFS                 0x00000006
2197 #define FILE_DEVICE_DISK                0x00000007
2198 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2199 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2200 #define FILE_DEVICE_NAMED_PIPE          0x00000011
2201 #define FILE_DEVICE_NETWORK             0x00000012
2202 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2203 #define FILE_DEVICE_NULL                0x00000015
2204 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2205 #define FILE_DEVICE_PRINTER             0x00000018
2206 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2207 #define FILE_DEVICE_STREAMS             0x0000001e
2208 #define FILE_DEVICE_TAPE                0x0000001f
2209 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2210 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2211 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2212 
2213 /* Device Characteristics */
2214 #define FILE_REMOVABLE_MEDIA			0x00000001
2215 #define FILE_READ_ONLY_DEVICE			0x00000002
2216 #define FILE_FLOPPY_DISKETTE			0x00000004
2217 #define FILE_WRITE_ONCE_MEDIA			0x00000008
2218 #define FILE_REMOTE_DEVICE			0x00000010
2219 #define FILE_DEVICE_IS_MOUNTED			0x00000020
2220 #define FILE_VIRTUAL_VOLUME			0x00000040
2221 #define FILE_DEVICE_SECURE_OPEN			0x00000100
2222 #define FILE_CHARACTERISTIC_TS_DEVICE		0x00001000
2223 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE	0x00002000
2224 #define FILE_PORTABLE_DEVICE			0x00004000
2225 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
2226 
2227 typedef struct {
2228 	__le32 DeviceType;
2229 	__le32 DeviceCharacteristics;
2230 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2231 
2232 /* minimum includes first three fields, and empty FS Name */
2233 #define MIN_FS_ATTR_INFO_SIZE 12
2234 
2235 
2236 /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
2237 #define FILE_SUPPORTS_SPARSE_VDL	0x10000000 /* faster nonsparse extend */
2238 #define FILE_SUPPORTS_BLOCK_REFCOUNTING	0x08000000 /* allow ioctl dup extents */
2239 #define FILE_SUPPORT_INTEGRITY_STREAMS	0x04000000
2240 #define FILE_SUPPORTS_USN_JOURNAL	0x02000000
2241 #define FILE_SUPPORTS_OPEN_BY_FILE_ID	0x01000000
2242 #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
2243 #define FILE_SUPPORTS_HARD_LINKS	0x00400000
2244 #define FILE_SUPPORTS_TRANSACTIONS	0x00200000
2245 #define FILE_SEQUENTIAL_WRITE_ONCE	0x00100000
2246 #define FILE_READ_ONLY_VOLUME		0x00080000
2247 #define FILE_NAMED_STREAMS		0x00040000
2248 #define FILE_SUPPORTS_ENCRYPTION	0x00020000
2249 #define FILE_SUPPORTS_OBJECT_IDS	0x00010000
2250 #define FILE_VOLUME_IS_COMPRESSED	0x00008000
2251 #define FILE_SUPPORTS_REMOTE_STORAGE	0x00000100
2252 #define FILE_SUPPORTS_REPARSE_POINTS	0x00000080
2253 #define FILE_SUPPORTS_SPARSE_FILES	0x00000040
2254 #define FILE_VOLUME_QUOTAS		0x00000020
2255 #define FILE_FILE_COMPRESSION		0x00000010
2256 #define FILE_PERSISTENT_ACLS		0x00000008
2257 #define FILE_UNICODE_ON_DISK		0x00000004
2258 #define FILE_CASE_PRESERVED_NAMES	0x00000002
2259 #define FILE_CASE_SENSITIVE_SEARCH	0x00000001
2260 typedef struct {
2261 	__le32 Attributes;
2262 	__le32 MaxPathNameComponentLength;
2263 	__le32 FileSystemNameLen;
2264 	char FileSystemName[52]; /* do not have to save this - get subset? */
2265 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2266 
2267 /******************************************************************************/
2268 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2269 /******************************************************************************/
2270 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2271 	__le64 CreationTime;
2272 	__le64 LastAccessTime;
2273 	__le64 LastWriteTime;
2274 	__le64 ChangeTime;
2275 	__le32 Attributes;
2276 	__u32 Pad1;
2277 	__le64 AllocationSize;
2278 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2279 	__le32 NumberOfLinks;	/* hard links */
2280 	__u8 DeletePending;
2281 	__u8 Directory;
2282 	__u16 Pad2;
2283 	__le64 IndexNumber;
2284 	__le32 EASize;
2285 	__le32 AccessFlags;
2286 	__u64 IndexNumber1;
2287 	__le64 CurrentByteOffset;
2288 	__le32 Mode;
2289 	__le32 AlignmentRequirement;
2290 	__le32 FileNameLength;
2291 	char FileName[1];
2292 } __attribute__((packed)) FILE_ALL_INFO;	/* level 0x107 QPathInfo */
2293 
2294 typedef struct {
2295 	__le64 AllocationSize;
2296 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2297 	__le32 NumberOfLinks;	/* hard links */
2298 	__u8 DeletePending;
2299 	__u8 Directory;
2300 	__u16 Pad;
2301 } __attribute__((packed)) FILE_STANDARD_INFO;	/* level 0x102 QPathInfo */
2302 
2303 
2304 /* defines for enumerating possible values of the Unix type field below */
2305 #define UNIX_FILE      0
2306 #define UNIX_DIR       1
2307 #define UNIX_SYMLINK   2
2308 #define UNIX_CHARDEV   3
2309 #define UNIX_BLOCKDEV  4
2310 #define UNIX_FIFO      5
2311 #define UNIX_SOCKET    6
2312 typedef struct {
2313 	__le64 EndOfFile;
2314 	__le64 NumOfBytes;
2315 	__le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2316 	__le64 LastAccessTime;
2317 	__le64 LastModificationTime;
2318 	__le64 Uid;
2319 	__le64 Gid;
2320 	__le32 Type;
2321 	__le64 DevMajor;
2322 	__le64 DevMinor;
2323 	__le64 UniqueId;
2324 	__le64 Permissions;
2325 	__le64 Nlinks;
2326 } __attribute__((packed)) FILE_UNIX_BASIC_INFO;	/* level 0x200 QPathInfo */
2327 
2328 typedef struct {
2329 	char LinkDest[1];
2330 } __attribute__((packed)) FILE_UNIX_LINK_INFO;	/* level 0x201 QPathInfo */
2331 
2332 /* The following three structures are needed only for
2333 	setting time to NT4 and some older servers via
2334 	the primitive DOS time format */
2335 typedef struct {
2336 	__u16 Day:5;
2337 	__u16 Month:4;
2338 	__u16 Year:7;
2339 } __attribute__((packed)) SMB_DATE;
2340 
2341 typedef struct {
2342 	__u16 TwoSeconds:5;
2343 	__u16 Minutes:6;
2344 	__u16 Hours:5;
2345 } __attribute__((packed)) SMB_TIME;
2346 
2347 typedef struct {
2348 	__le16 CreationDate; /* SMB Date see above */
2349 	__le16 CreationTime; /* SMB Time */
2350 	__le16 LastAccessDate;
2351 	__le16 LastAccessTime;
2352 	__le16 LastWriteDate;
2353 	__le16 LastWriteTime;
2354 	__le32 DataSize; /* File Size (EOF) */
2355 	__le32 AllocationSize;
2356 	__le16 Attributes; /* verify not u32 */
2357 	__le32 EASize;
2358 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2359 
2360 typedef struct {
2361 	__le64 CreationTime;
2362 	__le64 LastAccessTime;
2363 	__le64 LastWriteTime;
2364 	__le64 ChangeTime;
2365 	__le32 Attributes;
2366 	__u32 Pad;
2367 } __attribute__((packed)) FILE_BASIC_INFO;	/* size info, level 0x101 */
2368 
2369 struct file_allocation_info {
2370 	__le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2371 } __attribute__((packed));	/* size used on disk, for level 0x103 for set,
2372 				   0x105 for query */
2373 
2374 struct file_end_of_file_info {
2375 	__le64 FileSize;		/* offset to end of file */
2376 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2377 
2378 struct file_alt_name_info {
2379 	__u8   alt_name[1];
2380 } __attribute__((packed));      /* level 0x0108 */
2381 
2382 struct file_stream_info {
2383 	__le32 number_of_streams;  /* BB check sizes and verify location */
2384 	/* followed by info on streams themselves
2385 		u64 size;
2386 		u64 allocation_size
2387 		stream info */
2388 };      /* level 0x109 */
2389 
2390 struct file_compression_info {
2391 	__le64 compressed_size;
2392 	__le16 format;
2393 	__u8   unit_shift;
2394 	__u8   ch_shift;
2395 	__u8   cl_shift;
2396 	__u8   pad[3];
2397 } __attribute__((packed));      /* level 0x10b */
2398 
2399 /* POSIX ACL set/query path info structures */
2400 #define CIFS_ACL_VERSION 1
2401 struct cifs_posix_ace { /* access control entry (ACE) */
2402 	__u8  cifs_e_tag;
2403 	__u8  cifs_e_perm;
2404 	__le64 cifs_uid; /* or gid */
2405 } __attribute__((packed));
2406 
2407 struct cifs_posix_acl { /* access conrol list  (ACL) */
2408 	__le16	version;
2409 	__le16	access_entry_count;  /* access ACL - count of entries */
2410 	__le16	default_entry_count; /* default ACL - count of entries */
2411 	struct cifs_posix_ace ace_array[];
2412 	/* followed by
2413 	struct cifs_posix_ace default_ace_arraay[] */
2414 } __attribute__((packed));  /* level 0x204 */
2415 
2416 /* types of access control entries already defined in posix_acl.h */
2417 /* #define CIFS_POSIX_ACL_USER_OBJ	 0x01
2418 #define CIFS_POSIX_ACL_USER      0x02
2419 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2420 #define CIFS_POSIX_ACL_GROUP     0x08
2421 #define CIFS_POSIX_ACL_MASK      0x10
2422 #define CIFS_POSIX_ACL_OTHER     0x20 */
2423 
2424 /* types of perms */
2425 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2426 #define CIFS_POSIX_ACL_WRITE     0x02
2427 #define CIFS_POSIX_ACL_READ	     0x04 */
2428 
2429 /* end of POSIX ACL definitions */
2430 
2431 /* POSIX Open Flags */
2432 #define SMB_O_RDONLY 	 0x1
2433 #define SMB_O_WRONLY 	0x2
2434 #define SMB_O_RDWR 	0x4
2435 #define SMB_O_CREAT 	0x10
2436 #define SMB_O_EXCL 	0x20
2437 #define SMB_O_TRUNC 	0x40
2438 #define SMB_O_APPEND 	0x80
2439 #define SMB_O_SYNC 	0x100
2440 #define SMB_O_DIRECTORY 0x200
2441 #define SMB_O_NOFOLLOW 	0x400
2442 #define SMB_O_DIRECT 	0x800
2443 
2444 typedef struct {
2445 	__le32 OpenFlags; /* same as NT CreateX */
2446 	__le32 PosixOpenFlags;
2447 	__le64 Permissions;
2448 	__le16 Level; /* reply level requested (see QPathInfo levels) */
2449 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2450 
2451 typedef struct {
2452 	__le16 OplockFlags;
2453 	__u16 Fid;
2454 	__le32 CreateAction;
2455 	__le16 ReturnedLevel;
2456 	__le16 Pad;
2457 	/* struct following varies based on requested level */
2458 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2459 
2460 #define SMB_POSIX_UNLINK_FILE_TARGET		0
2461 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET	1
2462 
2463 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2464 	__le16 type;
2465 } __attribute__((packed));
2466 
2467 struct file_internal_info {
2468 	__le64  UniqueId; /* inode number */
2469 } __attribute__((packed));      /* level 0x3ee */
2470 
2471 struct file_mode_info {
2472 	__le32	Mode;
2473 } __attribute__((packed));      /* level 0x3f8 */
2474 
2475 struct file_attrib_tag {
2476 	__le32 Attribute;
2477 	__le32 ReparseTag;
2478 } __attribute__((packed));      /* level 0x40b */
2479 
2480 
2481 /********************************************************/
2482 /*  FindFirst/FindNext transact2 data buffer formats    */
2483 /********************************************************/
2484 
2485 typedef struct {
2486 	__le32 NextEntryOffset;
2487 	__u32 ResumeKey; /* as with FileIndex - no need to convert */
2488 	FILE_UNIX_BASIC_INFO basic;
2489 	char FileName[1];
2490 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2491 
2492 typedef struct {
2493 	__le32 NextEntryOffset;
2494 	__u32 FileIndex;
2495 	__le64 CreationTime;
2496 	__le64 LastAccessTime;
2497 	__le64 LastWriteTime;
2498 	__le64 ChangeTime;
2499 	__le64 EndOfFile;
2500 	__le64 AllocationSize;
2501 	__le32 ExtFileAttributes;
2502 	__le32 FileNameLength;
2503 	char FileName[1];
2504 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
2505 
2506 typedef struct {
2507 	__le32 NextEntryOffset;
2508 	__u32 FileIndex;
2509 	__le64 CreationTime;
2510 	__le64 LastAccessTime;
2511 	__le64 LastWriteTime;
2512 	__le64 ChangeTime;
2513 	__le64 EndOfFile;
2514 	__le64 AllocationSize;
2515 	__le32 ExtFileAttributes;
2516 	__le32 FileNameLength;
2517 	__le32 EaSize; /* length of the xattrs */
2518 	char FileName[1];
2519 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2520 
2521 typedef struct {
2522 	__le32 NextEntryOffset;
2523 	__u32 FileIndex;
2524 	__le64 CreationTime;
2525 	__le64 LastAccessTime;
2526 	__le64 LastWriteTime;
2527 	__le64 ChangeTime;
2528 	__le64 EndOfFile;
2529 	__le64 AllocationSize;
2530 	__le32 ExtFileAttributes;
2531 	__le32 FileNameLength;
2532 	__le32 EaSize; /* EA size */
2533 	__le32 Reserved;
2534 	__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2535 	char FileName[1];
2536 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2537 
2538 typedef struct {
2539 	__le32 NextEntryOffset;
2540 	__u32 FileIndex;
2541 	__le64 CreationTime;
2542 	__le64 LastAccessTime;
2543 	__le64 LastWriteTime;
2544 	__le64 ChangeTime;
2545 	__le64 EndOfFile;
2546 	__le64 AllocationSize;
2547 	__le32 ExtFileAttributes;
2548 	__le32 FileNameLength;
2549 	__le32 EaSize; /* length of the xattrs */
2550 	__u8   ShortNameLength;
2551 	__u8   Reserved;
2552 	__u8   ShortName[24];
2553 	char FileName[1];
2554 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2555 
2556 typedef struct {
2557 	__u32  ResumeKey;
2558 	__le16 CreationDate; /* SMB Date */
2559 	__le16 CreationTime; /* SMB Time */
2560 	__le16 LastAccessDate;
2561 	__le16 LastAccessTime;
2562 	__le16 LastWriteDate;
2563 	__le16 LastWriteTime;
2564 	__le32 DataSize; /* File Size (EOF) */
2565 	__le32 AllocationSize;
2566 	__le16 Attributes; /* verify not u32 */
2567 	__u8   FileNameLength;
2568 	char FileName[1];
2569 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2570 
2571 
2572 struct win_dev {
2573 	unsigned char type[8]; /* IntxCHR or IntxBLK */
2574 	__le64 major;
2575 	__le64 minor;
2576 } __attribute__((packed));
2577 
2578 struct gea {
2579 	unsigned char name_len;
2580 	char name[1];
2581 } __attribute__((packed));
2582 
2583 struct gealist {
2584 	unsigned long list_len;
2585 	struct gea list[1];
2586 } __attribute__((packed));
2587 
2588 struct fea {
2589 	unsigned char EA_flags;
2590 	__u8 name_len;
2591 	__le16 value_len;
2592 	char name[1];
2593 	/* optionally followed by value */
2594 } __attribute__((packed));
2595 /* flags for _FEA.fEA */
2596 #define FEA_NEEDEA         0x80	/* need EA bit */
2597 
2598 struct fealist {
2599 	__le32 list_len;
2600 	struct fea list[1];
2601 } __attribute__((packed));
2602 
2603 /* used to hold an arbitrary blob of data */
2604 struct data_blob {
2605 	__u8 *data;
2606 	size_t length;
2607 	void (*free) (struct data_blob *data_blob);
2608 } __attribute__((packed));
2609 
2610 
2611 #ifdef CONFIG_CIFS_POSIX
2612 /*
2613 	For better POSIX semantics from Linux client, (even better
2614 	than the existing CIFS Unix Extensions) we need updated PDUs for:
2615 
2616 	1) PosixCreateX - to set and return the mode, inode#, device info and
2617 	perhaps add a CreateDevice - to create Pipes and other special .inodes
2618 	Also note POSIX open flags
2619 	2) Close - to return the last write time to do cache across close
2620 		more safely
2621 	3) FindFirst return unique inode number - what about resume key, two
2622 	forms short (matches readdir) and full (enough info to cache inodes)
2623 	4) Mkdir - set mode
2624 
2625 	And under consideration:
2626 	5) FindClose2 (return nanosecond timestamp ??)
2627 	6) Use nanosecond timestamps throughout all time fields if
2628 	   corresponding attribute flag is set
2629 	7) sendfile - handle based copy
2630 
2631 	what about fixing 64 bit alignment
2632 
2633 	There are also various legacy SMB/CIFS requests used as is
2634 
2635 	From existing Lanman and NTLM dialects:
2636 	--------------------------------------
2637 	NEGOTIATE
2638 	SESSION_SETUP_ANDX (BB which?)
2639 	TREE_CONNECT_ANDX (BB which wct?)
2640 	TREE_DISCONNECT (BB add volume timestamp on response)
2641 	LOGOFF_ANDX
2642 	DELETE (note delete open file behavior)
2643 	DELETE_DIRECTORY
2644 	READ_AND_X
2645 	WRITE_AND_X
2646 	LOCKING_AND_X (note posix lock semantics)
2647 	RENAME (note rename across dirs and open file rename posix behaviors)
2648 	NT_RENAME (for hardlinks) Is this good enough for all features?
2649 	FIND_CLOSE2
2650 	TRANSACTION2 (18 cases)
2651 		SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2652 		(BB verify that never need to set allocation size)
2653 		SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2654 			 Unix ext?)
2655 
2656 	COPY (note support for copy across directories) - FUTURE, OPTIONAL
2657 	setting/getting OS/2 EAs - FUTURE (BB can this handle
2658 	setting Linux xattrs perfectly)         - OPTIONAL
2659 	dnotify                                 - FUTURE, OPTIONAL
2660 	quota                                   - FUTURE, OPTIONAL
2661 
2662 	Note that various requests implemented for NT interop such as
2663 		NT_TRANSACT (IOCTL) QueryReparseInfo
2664 	are unneeded to servers compliant with the CIFS POSIX extensions
2665 
2666 	From CIFS Unix Extensions:
2667 	-------------------------
2668 	T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2669 	T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2670 	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2671 	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)	BB check for missing
2672 							inode fields
2673 				Actually a need QUERY_FILE_UNIX_INFO
2674 				since has inode num
2675 				BB what about a) blksize/blkbits/blocks
2676 							  b) i_version
2677 							  c) i_rdev
2678 							  d) notify mask?
2679 							  e) generation
2680 							  f) size_seqcount
2681 	T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2682 	TRANS2_GET_DFS_REFERRAL		      - OPTIONAL but recommended
2683 	T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2684  */
2685 
2686 /* xsymlink is a symlink format (used by MacOS) that can be used
2687    to save symlink info in a regular file when
2688    mounted to operating systems that do not
2689    support the cifs Unix extensions or EAs (for xattr
2690    based symlinks).  For such a file to be recognized
2691    as containing symlink data:
2692 
2693    1) file size must be 1067,
2694    2) signature must begin file data,
2695    3) length field must be set to ASCII representation
2696 	of a number which is less than or equal to 1024,
2697    4) md5 must match that of the path data */
2698 
2699 struct xsymlink {
2700 	/* 1067 bytes */
2701 	char signature[4]; /* XSym */ /* not null terminated */
2702 	char cr0;         /* \n */
2703 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2704 	char length[4];
2705 	char cr1;         /* \n */
2706 /* md5 of valid subset of path ie path[0] through path[length-1] */
2707 	__u8 md5[32];
2708 	char cr2;        /* \n */
2709 /* if room left, then end with \n then 0x20s by convention but not required */
2710 	char path[1024];
2711 } __attribute__((packed));
2712 
2713 typedef struct file_xattr_info {
2714 	/* BB do we need another field for flags? BB */
2715 	__u32 xattr_name_len;
2716 	__u32 xattr_value_len;
2717 	char  xattr_name[];
2718 	/* followed by xattr_value[xattr_value_len], no pad */
2719 } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2720 					      level 0x205 */
2721 
2722 /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
2723 
2724 typedef struct file_chattr_info {
2725 	__le64	mask; /* list of all possible attribute bits */
2726 	__le64	mode; /* list of actual attribute bits on this inode */
2727 } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
2728 						(chattr, chflags) level 0x206 */
2729 #endif 				/* POSIX */
2730 #endif				/* _CIFSPDU_H */
2731