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1 /*
2  *   fs/cifs/cifspdu.h
3  *
4  *   Copyright (c) International Business Machines  Corp., 2002,2009
5  *   Author(s): Steve French (sfrench@us.ibm.com)
6  *
7  *   This library is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU Lesser General Public License as published
9  *   by the Free Software Foundation; either version 2.1 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This library is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
15  *   the GNU Lesser General Public License for more details.
16  *
17  *   You should have received a copy of the GNU Lesser General Public License
18  *   along with this library; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  */
21 
22 #ifndef _CIFSPDU_H
23 #define _CIFSPDU_H
24 
25 #include <net/sock.h>
26 #include <asm/unaligned.h>
27 #include "smbfsctl.h"
28 
29 #ifdef CONFIG_CIFS_WEAK_PW_HASH
30 #define LANMAN_PROT 0
31 #define LANMAN2_PROT 1
32 #define CIFS_PROT   2
33 #else
34 #define CIFS_PROT   0
35 #endif
36 #define POSIX_PROT  (CIFS_PROT+1)
37 #define BAD_PROT 0xFFFF
38 
39 /* SMB command codes:
40  * Note some commands have minimal (wct=0,bcc=0), or uninteresting, responses
41  * (ie which include no useful data other than the SMB error code itself).
42  * This can allow us to avoid response buffer allocations and copy in some cases
43  */
44 #define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
45 #define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
46 #define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
47 #define SMB_COM_FLUSH                 0x05 /* triv req/rsp */
48 #define SMB_COM_DELETE                0x06 /* trivial response */
49 #define SMB_COM_RENAME                0x07 /* trivial response */
50 #define SMB_COM_QUERY_INFORMATION     0x08 /* aka getattr */
51 #define SMB_COM_SETATTR               0x09 /* trivial response */
52 #define SMB_COM_LOCKING_ANDX          0x24 /* trivial response */
53 #define SMB_COM_COPY                  0x29 /* trivial rsp, fail filename ignrd*/
54 #define SMB_COM_ECHO                  0x2B /* echo request */
55 #define SMB_COM_OPEN_ANDX             0x2D /* Legacy open for old servers */
56 #define SMB_COM_READ_ANDX             0x2E
57 #define SMB_COM_WRITE_ANDX            0x2F
58 #define SMB_COM_TRANSACTION2          0x32
59 #define SMB_COM_TRANSACTION2_SECONDARY 0x33
60 #define SMB_COM_FIND_CLOSE2           0x34 /* trivial response */
61 #define SMB_COM_TREE_DISCONNECT       0x71 /* trivial response */
62 #define SMB_COM_NEGOTIATE             0x72
63 #define SMB_COM_SESSION_SETUP_ANDX    0x73
64 #define SMB_COM_LOGOFF_ANDX           0x74 /* trivial response */
65 #define SMB_COM_TREE_CONNECT_ANDX     0x75
66 #define SMB_COM_NT_TRANSACT           0xA0
67 #define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
68 #define SMB_COM_NT_CREATE_ANDX        0xA2
69 #define SMB_COM_NT_CANCEL             0xA4 /* no response */
70 #define SMB_COM_NT_RENAME             0xA5 /* trivial response */
71 
72 /* Transact2 subcommand codes */
73 #define TRANS2_OPEN                   0x00
74 #define TRANS2_FIND_FIRST             0x01
75 #define TRANS2_FIND_NEXT              0x02
76 #define TRANS2_QUERY_FS_INFORMATION   0x03
77 #define TRANS2_SET_FS_INFORMATION     0x04
78 #define TRANS2_QUERY_PATH_INFORMATION 0x05
79 #define TRANS2_SET_PATH_INFORMATION   0x06
80 #define TRANS2_QUERY_FILE_INFORMATION 0x07
81 #define TRANS2_SET_FILE_INFORMATION   0x08
82 #define TRANS2_GET_DFS_REFERRAL       0x10
83 #define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
84 
85 /* SMB Transact (Named Pipe) subcommand codes */
86 #define TRANS_SET_NMPIPE_STATE      0x0001
87 #define TRANS_RAW_READ_NMPIPE       0x0011
88 #define TRANS_QUERY_NMPIPE_STATE    0x0021
89 #define TRANS_QUERY_NMPIPE_INFO     0x0022
90 #define TRANS_PEEK_NMPIPE           0x0023
91 #define TRANS_TRANSACT_NMPIPE       0x0026
92 #define TRANS_RAW_WRITE_NMPIPE      0x0031
93 #define TRANS_READ_NMPIPE           0x0036
94 #define TRANS_WRITE_NMPIPE          0x0037
95 #define TRANS_WAIT_NMPIPE           0x0053
96 #define TRANS_CALL_NMPIPE           0x0054
97 
98 /* NT Transact subcommand codes */
99 #define NT_TRANSACT_CREATE            0x01
100 #define NT_TRANSACT_IOCTL             0x02
101 #define NT_TRANSACT_SET_SECURITY_DESC 0x03
102 #define NT_TRANSACT_NOTIFY_CHANGE     0x04
103 #define NT_TRANSACT_RENAME            0x05
104 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
105 #define NT_TRANSACT_GET_USER_QUOTA    0x07
106 #define NT_TRANSACT_SET_USER_QUOTA    0x08
107 
108 #define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
109 /* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */
110 /* among the requests (NTCreateX response is bigger with wct of 34) */
111 #define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */
112 #define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */
113 
114 /* internal cifs vfs structures */
115 /*****************************************************************
116  * All constants go here
117  *****************************************************************
118  */
119 
120 /*
121  * Starting value for maximum SMB size negotiation
122  */
123 #define CIFS_MAX_MSGSIZE (4*4096)
124 
125 /*
126  * Size of encrypted user password in bytes
127  */
128 #define CIFS_ENCPWD_SIZE (16)
129 
130 /*
131  * Size of the crypto key returned on the negotiate SMB in bytes
132  */
133 #define CIFS_CRYPTO_KEY_SIZE (8)
134 
135 /*
136  * Size of the ntlm client response
137  */
138 #define CIFS_AUTH_RESP_SIZE (24)
139 
140 /*
141  * Size of the session key (crypto key encrypted with the password
142  */
143 #define CIFS_SESS_KEY_SIZE (16)
144 
145 /*
146  * Size of the smb3 signing key
147  */
148 #define SMB3_SIGN_KEY_SIZE (16)
149 
150 #define CIFS_CLIENT_CHALLENGE_SIZE (8)
151 #define CIFS_SERVER_CHALLENGE_SIZE (8)
152 #define CIFS_HMAC_MD5_HASH_SIZE (16)
153 #define CIFS_CPHTXT_SIZE (16)
154 #define CIFS_NTHASH_SIZE (16)
155 
156 /*
157  * Maximum user name length
158  */
159 #define CIFS_UNLEN (20)
160 
161 /*
162  * Flags on SMB open
163  */
164 #define SMBOPEN_WRITE_THROUGH 0x4000
165 #define SMBOPEN_DENY_ALL      0x0010
166 #define SMBOPEN_DENY_WRITE    0x0020
167 #define SMBOPEN_DENY_READ     0x0030
168 #define SMBOPEN_DENY_NONE     0x0040
169 #define SMBOPEN_READ          0x0000
170 #define SMBOPEN_WRITE         0x0001
171 #define SMBOPEN_READWRITE     0x0002
172 #define SMBOPEN_EXECUTE       0x0003
173 
174 #define SMBOPEN_OCREATE       0x0010
175 #define SMBOPEN_OTRUNC        0x0002
176 #define SMBOPEN_OAPPEND       0x0001
177 
178 /*
179  * SMB flag definitions
180  */
181 #define SMBFLG_EXTD_LOCK 0x01	/* server supports lock-read write-unlock smb */
182 #define SMBFLG_RCV_POSTED 0x02	/* obsolete */
183 #define SMBFLG_RSVD 0x04
184 #define SMBFLG_CASELESS 0x08	/* all pathnames treated as caseless (off
185 				implies case sensitive file handling request) */
186 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10	/* obsolete */
187 #define SMBFLG_OLD_OPLOCK 0x20	/* obsolete */
188 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40	/* obsolete */
189 #define SMBFLG_RESPONSE 0x80	/* this PDU is a response from server */
190 
191 /*
192  * SMB flag2 definitions
193  */
194 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1)	/* can send long (non-8.3)
195 						   path names in response */
196 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
197 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
198 #define SMBFLG2_COMPRESSED (8)
199 #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
200 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
201 #define SMBFLG2_REPARSE_PATH (0x400)
202 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
203 #define SMBFLG2_DFS cpu_to_le16(0x1000)
204 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
205 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
206 #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
207 
208 /*
209  * These are the file access permission bits defined in CIFS for the
210  * NTCreateAndX as well as the level 0x107
211  * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
212  * responds with the AccessFlags.
213  * The AccessFlags specifies the access permissions a caller has to the
214  * file and can have any suitable combination of the following values:
215  */
216 
217 #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
218 #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
219 #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
220 #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
221 					  /* with the file can be read        */
222 #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
223 					  /* with the file can be written     */
224 #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
225 					  /* the file using system paging I/O */
226 #define FILE_DELETE_CHILD     0x00000040
227 #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
228 					  /* file can be read                 */
229 #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
230 					  /* file can be written              */
231 #define DELETE                0x00010000  /* The file can be deleted          */
232 #define READ_CONTROL          0x00020000  /* The access control list and      */
233 					  /* ownership associated with the    */
234 					  /* file can be read                 */
235 #define WRITE_DAC             0x00040000  /* The access control list and      */
236 					  /* ownership associated with the    */
237 					  /* file can be written.             */
238 #define WRITE_OWNER           0x00080000  /* Ownership information associated */
239 					  /* with the file can be written     */
240 #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
241 					  /* synchronize with the completion  */
242 					  /* of an input/output request       */
243 #define GENERIC_ALL           0x10000000
244 #define GENERIC_EXECUTE       0x20000000
245 #define GENERIC_WRITE         0x40000000
246 #define GENERIC_READ          0x80000000
247 					 /* In summary - Relevant file       */
248 					 /* access flags from CIFS are       */
249 					 /* file_read_data, file_write_data  */
250 					 /* file_execute, file_read_attributes*/
251 					 /* write_dac, and delete.           */
252 
253 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
254 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
255 				| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
256 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
257 
258 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
259 				| FILE_READ_ATTRIBUTES \
260 				| FILE_WRITE_ATTRIBUTES \
261 				| DELETE | READ_CONTROL | WRITE_DAC \
262 				| WRITE_OWNER | SYNCHRONIZE)
263 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
264 				| FILE_READ_EA | FILE_WRITE_EA \
265 				| FILE_DELETE_CHILD | FILE_READ_ATTRIBUTES \
266 				| FILE_WRITE_ATTRIBUTES \
267 				| DELETE | READ_CONTROL | WRITE_DAC \
268 				| WRITE_OWNER | SYNCHRONIZE)
269 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
270 				| FILE_READ_ATTRIBUTES \
271 				| FILE_WRITE_ATTRIBUTES \
272 				| DELETE | READ_CONTROL | WRITE_DAC \
273 				| WRITE_OWNER | SYNCHRONIZE)
274 
275 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
276 				| READ_CONTROL | SYNCHRONIZE)
277 
278 
279 /*
280  * Invalid readdir handle
281  */
282 #define CIFS_NO_HANDLE        0xFFFF
283 
284 #define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
285 
286 /* IPC$ in ASCII */
287 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
288 
289 /* IPC$ in Unicode */
290 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
291 
292 /* Unicode Null terminate 2 bytes of 0 */
293 #define UNICODE_NULL "\x00\x00"
294 #define ASCII_NULL 0x00
295 
296 /*
297  * Server type values (returned on EnumServer API
298  */
299 #define CIFS_SV_TYPE_DC     0x00000008
300 #define CIFS_SV_TYPE_BACKDC 0x00000010
301 
302 /*
303  * Alias type flags (From EnumAlias API call
304  */
305 #define CIFS_ALIAS_TYPE_FILE 0x0001
306 #define CIFS_SHARE_TYPE_FILE 0x0000
307 
308 /*
309  * File Attribute flags
310  */
311 #define ATTR_READONLY  0x0001
312 #define ATTR_HIDDEN    0x0002
313 #define ATTR_SYSTEM    0x0004
314 #define ATTR_VOLUME    0x0008
315 #define ATTR_DIRECTORY 0x0010
316 #define ATTR_ARCHIVE   0x0020
317 #define ATTR_DEVICE    0x0040
318 #define ATTR_NORMAL    0x0080
319 #define ATTR_TEMPORARY 0x0100
320 #define ATTR_SPARSE    0x0200
321 #define ATTR_REPARSE   0x0400
322 #define ATTR_COMPRESSED 0x0800
323 #define ATTR_OFFLINE    0x1000	/* ie file not immediately available -
324 					on offline storage */
325 #define ATTR_NOT_CONTENT_INDEXED 0x2000
326 #define ATTR_ENCRYPTED  0x4000
327 #define ATTR_POSIX_SEMANTICS 0x01000000
328 #define ATTR_BACKUP_SEMANTICS 0x02000000
329 #define ATTR_DELETE_ON_CLOSE 0x04000000
330 #define ATTR_SEQUENTIAL_SCAN 0x08000000
331 #define ATTR_RANDOM_ACCESS   0x10000000
332 #define ATTR_NO_BUFFERING    0x20000000
333 #define ATTR_WRITE_THROUGH   0x80000000
334 
335 /* ShareAccess flags */
336 #define FILE_NO_SHARE     0x00000000
337 #define FILE_SHARE_READ   0x00000001
338 #define FILE_SHARE_WRITE  0x00000002
339 #define FILE_SHARE_DELETE 0x00000004
340 #define FILE_SHARE_ALL    0x00000007
341 
342 /* CreateDisposition flags, similar to CreateAction as well */
343 #define FILE_SUPERSEDE    0x00000000
344 #define FILE_OPEN         0x00000001
345 #define FILE_CREATE       0x00000002
346 #define FILE_OPEN_IF      0x00000003
347 #define FILE_OVERWRITE    0x00000004
348 #define FILE_OVERWRITE_IF 0x00000005
349 
350 /* CreateOptions */
351 #define CREATE_NOT_FILE		0x00000001	/* if set must not be file */
352 #define CREATE_WRITE_THROUGH	0x00000002
353 #define CREATE_SEQUENTIAL       0x00000004
354 #define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
355 #define CREATE_SYNC_ALERT       0x00000010	/* MBZ */
356 #define CREATE_ASYNC_ALERT      0x00000020	/* MBZ */
357 #define CREATE_NOT_DIR		0x00000040    /* if set must not be directory */
358 #define CREATE_TREE_CONNECTION  0x00000080	/* should be zero */
359 #define CREATE_COMPLETE_IF_OPLK 0x00000100	/* should be zero */
360 #define CREATE_NO_EA_KNOWLEDGE  0x00000200
361 #define CREATE_EIGHT_DOT_THREE  0x00000400	/* doc says this is obsolete
362 						 "open for recovery" flag should
363 						 be zero in any case */
364 #define CREATE_OPEN_FOR_RECOVERY 0x00000400
365 #define CREATE_RANDOM_ACCESS	0x00000800
366 #define CREATE_DELETE_ON_CLOSE	0x00001000
367 #define CREATE_OPEN_BY_ID       0x00002000
368 #define CREATE_OPEN_BACKUP_INTENT 0x00004000
369 #define CREATE_NO_COMPRESSION   0x00008000
370 #define CREATE_RESERVE_OPFILTER 0x00100000	/* should be zero */
371 #define OPEN_REPARSE_POINT	0x00200000
372 #define OPEN_NO_RECALL          0x00400000
373 #define OPEN_FREE_SPACE_QUERY   0x00800000	/* should be zero */
374 #define CREATE_OPTIONS_MASK     0x007FFFFF
375 #define CREATE_OPTION_READONLY	0x10000000
376 #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
377 
378 /* ImpersonationLevel flags */
379 #define SECURITY_ANONYMOUS      0
380 #define SECURITY_IDENTIFICATION 1
381 #define SECURITY_IMPERSONATION  2
382 #define SECURITY_DELEGATION     3
383 
384 /* SecurityFlags */
385 #define SECURITY_CONTEXT_TRACKING 0x01
386 #define SECURITY_EFFECTIVE_ONLY   0x02
387 
388 /*
389  * Default PID value, used in all SMBs where the PID is not important
390  */
391 #define CIFS_DFT_PID  0x1234
392 
393 /*
394  * We use the same routine for Copy and Move SMBs.  This flag is used to
395  * distinguish
396  */
397 #define CIFS_COPY_OP 1
398 #define CIFS_RENAME_OP 2
399 
400 #define GETU16(var)  (*((__u16 *)var))	/* BB check for endian issues */
401 #define GETU32(var)  (*((__u32 *)var))	/* BB check for endian issues */
402 
403 struct smb_hdr {
404 	__be32 smb_buf_length;	/* BB length is only two (rarely three) bytes,
405 		with one or two byte "type" preceding it that will be
406 		zero - we could mask the type byte off */
407 	__u8 Protocol[4];
408 	__u8 Command;
409 	union {
410 		struct {
411 			__u8 ErrorClass;
412 			__u8 Reserved;
413 			__le16 Error;
414 		} __attribute__((packed)) DosError;
415 		__le32 CifsError;
416 	} __attribute__((packed)) Status;
417 	__u8 Flags;
418 	__le16 Flags2;		/* note: le */
419 	__le16 PidHigh;
420 	union {
421 		struct {
422 			__le32 SequenceNumber;  /* le */
423 			__u32 Reserved; /* zero */
424 		} __attribute__((packed)) Sequence;
425 		__u8 SecuritySignature[8];	/* le */
426 	} __attribute__((packed)) Signature;
427 	__u8 pad[2];
428 	__u16 Tid;
429 	__le16 Pid;
430 	__u16 Uid;
431 	__le16 Mid;
432 	__u8 WordCount;
433 } __attribute__((packed));
434 
435 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
436 static inline void *
BCC(struct smb_hdr * smb)437 BCC(struct smb_hdr *smb)
438 {
439 	return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
440 }
441 
442 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
443 #define pByteArea(smb_var) (BCC(smb_var) + 2)
444 
445 /* get the unconverted ByteCount for a SMB packet and return it */
446 static inline __u16
get_bcc(struct smb_hdr * hdr)447 get_bcc(struct smb_hdr *hdr)
448 {
449 	__le16 *bc_ptr = (__le16 *)BCC(hdr);
450 
451 	return get_unaligned_le16(bc_ptr);
452 }
453 
454 /* set the ByteCount for a SMB packet in little-endian */
455 static inline void
put_bcc(__u16 count,struct smb_hdr * hdr)456 put_bcc(__u16 count, struct smb_hdr *hdr)
457 {
458 	__le16 *bc_ptr = (__le16 *)BCC(hdr);
459 
460 	put_unaligned_le16(count, bc_ptr);
461 }
462 
463 /*
464  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
465  * No longer as important, now that TCP names are more commonly used to
466  * resolve hosts.
467  */
468 #define CNLEN 15
469 
470 /*
471  * Share Name Length (SNLEN)
472  * Note:  This length was limited by the SMB used to get
473  *        the Share info.   NetShareEnum only returned 13
474  *        chars, including the null termination.
475  * This was removed because it no longer is limiting.
476  */
477 
478 /*
479  * Comment Length
480  */
481 #define MAXCOMMENTLEN 40
482 
483 /*
484  * The OS/2 maximum path name
485  */
486 #define MAX_PATHCONF 256
487 
488 /*
489  *  SMB frame definitions  (following must be packed structs)
490  *  See the SNIA CIFS Specification for details.
491  *
492  *  The Naming convention is the lower case version of the
493  *  smb command code name for the struct and this is typedef to the
494  *  uppercase version of the same name with the prefix SMB_ removed
495  *  for brevity.  Although typedefs are not commonly used for
496  *  structure definitions in the Linux kernel, their use in the
497  *  CIFS standards document, which this code is based on, may
498  *  make this one of the cases where typedefs for structures make
499  *  sense to improve readability for readers of the standards doc.
500  *  Typedefs can always be removed later if they are too distracting
501  *  and they are only used for the CIFSs PDUs themselves, not
502  *  internal cifs vfs structures
503  *
504  */
505 
506 typedef struct negotiate_req {
507 	struct smb_hdr hdr;	/* wct = 0 */
508 	__le16 ByteCount;
509 	unsigned char DialectsArray[1];
510 } __attribute__((packed)) NEGOTIATE_REQ;
511 
512 /* Dialect index is 13 for LANMAN */
513 
514 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
515 
516 typedef struct lanman_neg_rsp {
517 	struct smb_hdr hdr;	/* wct = 13 */
518 	__le16 DialectIndex;
519 	__le16 SecurityMode;
520 	__le16 MaxBufSize;
521 	__le16 MaxMpxCount;
522 	__le16 MaxNumberVcs;
523 	__le16 RawMode;
524 	__le32 SessionKey;
525 	struct {
526 		__le16 Time;
527 		__le16 Date;
528 	} __attribute__((packed)) SrvTime;
529 	__le16 ServerTimeZone;
530 	__le16 EncryptionKeyLength;
531 	__le16 Reserved;
532 	__u16  ByteCount;
533 	unsigned char EncryptionKey[1];
534 } __attribute__((packed)) LANMAN_NEG_RSP;
535 
536 #define READ_RAW_ENABLE 1
537 #define WRITE_RAW_ENABLE 2
538 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
539 #define SMB1_CLIENT_GUID_SIZE (16)
540 typedef struct negotiate_rsp {
541 	struct smb_hdr hdr;	/* wct = 17 */
542 	__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
543 	__u8 SecurityMode;
544 	__le16 MaxMpxCount;
545 	__le16 MaxNumberVcs;
546 	__le32 MaxBufferSize;
547 	__le32 MaxRawSize;
548 	__le32 SessionKey;
549 	__le32 Capabilities;	/* see below */
550 	__le32 SystemTimeLow;
551 	__le32 SystemTimeHigh;
552 	__le16 ServerTimeZone;
553 	__u8 EncryptionKeyLength;
554 	__u16 ByteCount;
555 	union {
556 		unsigned char EncryptionKey[1];	/* cap extended security off */
557 		/* followed by Domain name - if extended security is off */
558 		/* followed by 16 bytes of server GUID */
559 		/* then security blob if cap_extended_security negotiated */
560 		struct {
561 			unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
562 			unsigned char SecurityBlob[1];
563 		} __attribute__((packed)) extended_response;
564 	} __attribute__((packed)) u;
565 } __attribute__((packed)) NEGOTIATE_RSP;
566 
567 /* SecurityMode bits */
568 #define SECMODE_USER          0x01	/* off indicates share level security */
569 #define SECMODE_PW_ENCRYPT    0x02
570 #define SECMODE_SIGN_ENABLED  0x04	/* SMB security signatures enabled */
571 #define SECMODE_SIGN_REQUIRED 0x08	/* SMB security signatures required */
572 
573 /* Negotiate response Capabilities */
574 #define CAP_RAW_MODE           0x00000001
575 #define CAP_MPX_MODE           0x00000002
576 #define CAP_UNICODE            0x00000004
577 #define CAP_LARGE_FILES        0x00000008
578 #define CAP_NT_SMBS            0x00000010	/* implies CAP_NT_FIND */
579 #define CAP_RPC_REMOTE_APIS    0x00000020
580 #define CAP_STATUS32           0x00000040
581 #define CAP_LEVEL_II_OPLOCKS   0x00000080
582 #define CAP_LOCK_AND_READ      0x00000100
583 #define CAP_NT_FIND            0x00000200
584 #define CAP_DFS                0x00001000
585 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
586 #define CAP_LARGE_READ_X       0x00004000
587 #define CAP_LARGE_WRITE_X      0x00008000
588 #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
589 #define CAP_UNIX               0x00800000
590 #define CAP_COMPRESSED_DATA    0x02000000
591 #define CAP_DYNAMIC_REAUTH     0x20000000
592 #define CAP_PERSISTENT_HANDLES 0x40000000
593 #define CAP_EXTENDED_SECURITY  0x80000000
594 
595 typedef union smb_com_session_setup_andx {
596 	struct {		/* request format */
597 		struct smb_hdr hdr;	/* wct = 12 */
598 		__u8 AndXCommand;
599 		__u8 AndXReserved;
600 		__le16 AndXOffset;
601 		__le16 MaxBufferSize;
602 		__le16 MaxMpxCount;
603 		__le16 VcNumber;
604 		__u32 SessionKey;
605 		__le16 SecurityBlobLength;
606 		__u32 Reserved;
607 		__le32 Capabilities;	/* see below */
608 		__le16 ByteCount;
609 		unsigned char SecurityBlob[1];	/* followed by */
610 		/* STRING NativeOS */
611 		/* STRING NativeLanMan */
612 	} __attribute__((packed)) req;	/* NTLM request format (with
613 					extended security */
614 
615 	struct {		/* request format */
616 		struct smb_hdr hdr;	/* wct = 13 */
617 		__u8 AndXCommand;
618 		__u8 AndXReserved;
619 		__le16 AndXOffset;
620 		__le16 MaxBufferSize;
621 		__le16 MaxMpxCount;
622 		__le16 VcNumber;
623 		__u32 SessionKey;
624 		__le16 CaseInsensitivePasswordLength; /* ASCII password len */
625 		__le16 CaseSensitivePasswordLength; /* Unicode password length*/
626 		__u32 Reserved;	/* see below */
627 		__le32 Capabilities;
628 		__le16 ByteCount;
629 		unsigned char CaseInsensitivePassword[1];     /* followed by: */
630 		/* unsigned char * CaseSensitivePassword; */
631 		/* STRING AccountName */
632 		/* STRING PrimaryDomain */
633 		/* STRING NativeOS */
634 		/* STRING NativeLanMan */
635 	} __attribute__((packed)) req_no_secext; /* NTLM request format (without
636 							extended security */
637 
638 	struct {		/* default (NTLM) response format */
639 		struct smb_hdr hdr;	/* wct = 4 */
640 		__u8 AndXCommand;
641 		__u8 AndXReserved;
642 		__le16 AndXOffset;
643 		__le16 Action;	/* see below */
644 		__le16 SecurityBlobLength;
645 		__u16 ByteCount;
646 		unsigned char SecurityBlob[1];	/* followed by */
647 /*      unsigned char  * NativeOS;      */
648 /*	unsigned char  * NativeLanMan;  */
649 /*      unsigned char  * PrimaryDomain; */
650 	} __attribute__((packed)) resp;	/* NTLM response
651 					   (with or without extended sec) */
652 
653 	struct {		/* request format */
654 		struct smb_hdr hdr;	/* wct = 10 */
655 		__u8 AndXCommand;
656 		__u8 AndXReserved;
657 		__le16 AndXOffset;
658 		__le16 MaxBufferSize;
659 		__le16 MaxMpxCount;
660 		__le16 VcNumber;
661 		__u32 SessionKey;
662 		__le16 PasswordLength;
663 		__u32 Reserved; /* encrypt key len and offset */
664 		__le16 ByteCount;
665 		unsigned char AccountPassword[1];	/* followed by */
666 		/* STRING AccountName */
667 		/* STRING PrimaryDomain */
668 		/* STRING NativeOS */
669 		/* STRING NativeLanMan */
670 	} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
671 
672 	struct {		/* default (NTLM) response format */
673 		struct smb_hdr hdr;	/* wct = 3 */
674 		__u8 AndXCommand;
675 		__u8 AndXReserved;
676 		__le16 AndXOffset;
677 		__le16 Action;	/* see below */
678 		__u16 ByteCount;
679 		unsigned char NativeOS[1];	/* followed by */
680 /*	unsigned char * NativeLanMan; */
681 /*      unsigned char * PrimaryDomain; */
682 	} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
683 } __attribute__((packed)) SESSION_SETUP_ANDX;
684 
685 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
686 
687 #define NTLMSSP_SERVER_TYPE	1
688 #define NTLMSSP_DOMAIN_TYPE	2
689 #define NTLMSSP_FQ_DOMAIN_TYPE	3
690 #define NTLMSSP_DNS_DOMAIN_TYPE	4
691 #define NTLMSSP_DNS_PARENT_TYPE	5
692 
693 struct ntlmssp2_name {
694 	__le16 type;
695 	__le16 length;
696 /*	char   name[length]; */
697 } __attribute__((packed));
698 
699 struct ntlmv2_resp {
700 	union {
701 	    char ntlmv2_hash[CIFS_ENCPWD_SIZE];
702 	    struct {
703 		__u8 reserved[8];
704 		__u8 key[CIFS_SERVER_CHALLENGE_SIZE];
705 	    } __attribute__((packed)) challenge;
706 	} __attribute__((packed));
707 	__le32 blob_signature;
708 	__u32  reserved;
709 	__le64  time;
710 	__u64  client_chal; /* random */
711 	__u32  reserved2;
712 	/* array of name entries could follow ending in minimum 4 byte struct */
713 } __attribute__((packed));
714 
715 
716 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
717 
718 /* Capabilities bits (for NTLM SessSetup request) */
719 #define CAP_UNICODE            0x00000004
720 #define CAP_LARGE_FILES        0x00000008
721 #define CAP_NT_SMBS            0x00000010
722 #define CAP_STATUS32           0x00000040
723 #define CAP_LEVEL_II_OPLOCKS   0x00000080
724 #define CAP_NT_FIND            0x00000200	/* reserved should be zero
725 				(because NT_SMBs implies the same thing?) */
726 #define CAP_BULK_TRANSFER      0x20000000
727 #define CAP_EXTENDED_SECURITY  0x80000000
728 
729 /* Action bits */
730 #define GUEST_LOGIN 1
731 
732 typedef struct smb_com_tconx_req {
733 	struct smb_hdr hdr;	/* wct = 4 */
734 	__u8 AndXCommand;
735 	__u8 AndXReserved;
736 	__le16 AndXOffset;
737 	__le16 Flags;		/* see below */
738 	__le16 PasswordLength;
739 	__le16 ByteCount;
740 	unsigned char Password[1];	/* followed by */
741 /* STRING Path    *//* \\server\share name */
742 	/* STRING Service */
743 } __attribute__((packed)) TCONX_REQ;
744 
745 typedef struct smb_com_tconx_rsp {
746 	struct smb_hdr hdr;	/* wct = 3 , not extended response */
747 	__u8 AndXCommand;
748 	__u8 AndXReserved;
749 	__le16 AndXOffset;
750 	__le16 OptionalSupport;	/* see below */
751 	__u16 ByteCount;
752 	unsigned char Service[1];	/* always ASCII, not Unicode */
753 	/* STRING NativeFileSystem */
754 } __attribute__((packed)) TCONX_RSP;
755 
756 typedef struct smb_com_tconx_rsp_ext {
757 	struct smb_hdr hdr;	/* wct = 7, extended response */
758 	__u8 AndXCommand;
759 	__u8 AndXReserved;
760 	__le16 AndXOffset;
761 	__le16 OptionalSupport;	/* see below */
762 	__le32 MaximalShareAccessRights;
763 	__le32 GuestMaximalShareAccessRights;
764 	__u16 ByteCount;
765 	unsigned char Service[1];	/* always ASCII, not Unicode */
766 	/* STRING NativeFileSystem */
767 } __attribute__((packed)) TCONX_RSP_EXT;
768 
769 
770 /* tree connect Flags */
771 #define DISCONNECT_TID          0x0001
772 #define TCON_EXTENDED_SIGNATURES 0x0004
773 #define TCON_EXTENDED_SECINFO   0x0008
774 
775 /* OptionalSupport bits */
776 #define SMB_SUPPORT_SEARCH_BITS 0x0001	/* "must have" directory search bits
777 					 (exclusive searches supported) */
778 #define SMB_SHARE_IS_IN_DFS     0x0002
779 #define SMB_CSC_MASK               0x000C
780 /* CSC flags defined as follows */
781 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
782 #define SMB_CSC_CACHE_AUTO_REINT   0x0004
783 #define SMB_CSC_CACHE_VDO          0x0008
784 #define SMB_CSC_NO_CACHING         0x000C
785 #define SMB_UNIQUE_FILE_NAME    0x0010
786 #define SMB_EXTENDED_SIGNATURES 0x0020
787 
788 /* services
789  *
790  * A:       ie disk
791  * LPT1:    ie printer
792  * IPC      ie named pipe
793  * COMM
794  * ?????    ie any type
795  *
796  */
797 
798 typedef struct smb_com_echo_req {
799 	struct	smb_hdr hdr;
800 	__le16	EchoCount;
801 	__le16	ByteCount;
802 	char	Data[1];
803 } __attribute__((packed)) ECHO_REQ;
804 
805 typedef struct smb_com_echo_rsp {
806 	struct	smb_hdr hdr;
807 	__le16	SequenceNumber;
808 	__le16	ByteCount;
809 	char	Data[1];
810 } __attribute__((packed)) ECHO_RSP;
811 
812 typedef struct smb_com_logoff_andx_req {
813 	struct smb_hdr hdr;	/* wct = 2 */
814 	__u8 AndXCommand;
815 	__u8 AndXReserved;
816 	__u16 AndXOffset;
817 	__u16 ByteCount;
818 } __attribute__((packed)) LOGOFF_ANDX_REQ;
819 
820 typedef struct smb_com_logoff_andx_rsp {
821 	struct smb_hdr hdr;	/* wct = 2 */
822 	__u8 AndXCommand;
823 	__u8 AndXReserved;
824 	__u16 AndXOffset;
825 	__u16 ByteCount;
826 } __attribute__((packed)) LOGOFF_ANDX_RSP;
827 
828 typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
829 					tree_connect PDU to effect disconnect */
830 					/* tdis is probably simplest SMB PDU */
831 	struct {
832 		struct smb_hdr hdr;	/* wct = 0 */
833 		__u16 ByteCount;	/* bcc = 0 */
834 	} __attribute__((packed)) req;
835 	struct {
836 		struct smb_hdr hdr;	/* wct = 0 */
837 		__u16 ByteCount;	/* bcc = 0 */
838 	} __attribute__((packed)) resp;
839 } __attribute__((packed)) TREE_DISCONNECT;
840 
841 typedef struct smb_com_close_req {
842 	struct smb_hdr hdr;	/* wct = 3 */
843 	__u16 FileID;
844 	__u32 LastWriteTime;	/* should be zero or -1 */
845 	__u16 ByteCount;	/* 0 */
846 } __attribute__((packed)) CLOSE_REQ;
847 
848 typedef struct smb_com_close_rsp {
849 	struct smb_hdr hdr;	/* wct = 0 */
850 	__u16 ByteCount;	/* bct = 0 */
851 } __attribute__((packed)) CLOSE_RSP;
852 
853 typedef struct smb_com_flush_req {
854 	struct smb_hdr hdr;	/* wct = 1 */
855 	__u16 FileID;
856 	__u16 ByteCount;	/* 0 */
857 } __attribute__((packed)) FLUSH_REQ;
858 
859 typedef struct smb_com_findclose_req {
860 	struct smb_hdr hdr; /* wct = 1 */
861 	__u16 FileID;
862 	__u16 ByteCount;    /* 0 */
863 } __attribute__((packed)) FINDCLOSE_REQ;
864 
865 /* OpenFlags */
866 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
867 #define REQ_OPLOCK         0x00000002
868 #define REQ_BATCHOPLOCK    0x00000004
869 #define REQ_OPENDIRONLY    0x00000008
870 #define REQ_EXTENDED_INFO  0x00000010
871 
872 /* File type */
873 #define DISK_TYPE		0x0000
874 #define BYTE_PIPE_TYPE		0x0001
875 #define MESSAGE_PIPE_TYPE	0x0002
876 #define PRINTER_TYPE		0x0003
877 #define COMM_DEV_TYPE		0x0004
878 #define UNKNOWN_TYPE		0xFFFF
879 
880 /* Device Type or File Status Flags */
881 #define NO_EAS			0x0001
882 #define NO_SUBSTREAMS		0x0002
883 #define NO_REPARSETAG		0x0004
884 /* following flags can apply if pipe */
885 #define ICOUNT_MASK		0x00FF
886 #define PIPE_READ_MODE		0x0100
887 #define NAMED_PIPE_TYPE		0x0400
888 #define PIPE_END_POINT		0x4000
889 #define BLOCKING_NAMED_PIPE	0x8000
890 
891 typedef struct smb_com_open_req {	/* also handles create */
892 	struct smb_hdr hdr;	/* wct = 24 */
893 	__u8 AndXCommand;
894 	__u8 AndXReserved;
895 	__le16 AndXOffset;
896 	__u8 Reserved;		/* Must Be Zero */
897 	__le16 NameLength;
898 	__le32 OpenFlags;
899 	__u32  RootDirectoryFid;
900 	__le32 DesiredAccess;
901 	__le64 AllocationSize;
902 	__le32 FileAttributes;
903 	__le32 ShareAccess;
904 	__le32 CreateDisposition;
905 	__le32 CreateOptions;
906 	__le32 ImpersonationLevel;
907 	__u8 SecurityFlags;
908 	__le16 ByteCount;
909 	char fileName[1];
910 } __attribute__((packed)) OPEN_REQ;
911 
912 /* open response: oplock levels */
913 #define OPLOCK_NONE  	 0
914 #define OPLOCK_EXCLUSIVE 1
915 #define OPLOCK_BATCH	 2
916 #define OPLOCK_READ	 3  /* level 2 oplock */
917 
918 /* open response for CreateAction shifted left */
919 #define CIFS_CREATE_ACTION 0x20000 /* file created */
920 
921 typedef struct smb_com_open_rsp {
922 	struct smb_hdr hdr;	/* wct = 34 BB */
923 	__u8 AndXCommand;
924 	__u8 AndXReserved;
925 	__le16 AndXOffset;
926 	__u8 OplockLevel;
927 	__u16 Fid;
928 	__le32 CreateAction;
929 	__le64 CreationTime;
930 	__le64 LastAccessTime;
931 	__le64 LastWriteTime;
932 	__le64 ChangeTime;
933 	__le32 FileAttributes;
934 	__le64 AllocationSize;
935 	__le64 EndOfFile;
936 	__le16 FileType;
937 	__le16 DeviceState;
938 	__u8 DirectoryFlag;
939 	__u16 ByteCount;	/* bct = 0 */
940 } __attribute__((packed)) OPEN_RSP;
941 
942 typedef struct smb_com_open_rsp_ext {
943 	struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
944 	__u8 AndXCommand;
945 	__u8 AndXReserved;
946 	__le16 AndXOffset;
947 	__u8 OplockLevel;
948 	__u16 Fid;
949 	__le32 CreateAction;
950 	__le64 CreationTime;
951 	__le64 LastAccessTime;
952 	__le64 LastWriteTime;
953 	__le64 ChangeTime;
954 	__le32 FileAttributes;
955 	__le64 AllocationSize;
956 	__le64 EndOfFile;
957 	__le16 FileType;
958 	__le16 DeviceState;
959 	__u8 DirectoryFlag;
960 	__u8 VolumeGUID[16];
961 	__u64 FileId; /* note no endian conversion - is opaque UniqueID */
962 	__le32 MaximalAccessRights;
963 	__le32 GuestMaximalAccessRights;
964 	__u16 ByteCount;        /* bct = 0 */
965 } __attribute__((packed)) OPEN_RSP_EXT;
966 
967 
968 /* format of legacy open request */
969 typedef struct smb_com_openx_req {
970 	struct smb_hdr	hdr;	/* wct = 15 */
971 	__u8 AndXCommand;
972 	__u8 AndXReserved;
973 	__le16 AndXOffset;
974 	__le16 OpenFlags;
975 	__le16 Mode;
976 	__le16 Sattr; /* search attributes */
977 	__le16 FileAttributes;  /* dos attrs */
978 	__le32 CreateTime; /* os2 format */
979 	__le16 OpenFunction;
980 	__le32 EndOfFile;
981 	__le32 Timeout;
982 	__le32 Reserved;
983 	__le16  ByteCount;  /* file name follows */
984 	char   fileName[1];
985 } __attribute__((packed)) OPENX_REQ;
986 
987 typedef struct smb_com_openx_rsp {
988 	struct smb_hdr	hdr;	/* wct = 15 */
989 	__u8 AndXCommand;
990 	__u8 AndXReserved;
991 	__le16 AndXOffset;
992 	__u16  Fid;
993 	__le16 FileAttributes;
994 	__le32 LastWriteTime; /* os2 format */
995 	__le32 EndOfFile;
996 	__le16 Access;
997 	__le16 FileType;
998 	__le16 IPCState;
999 	__le16 Action;
1000 	__u32  FileId;
1001 	__u16  Reserved;
1002 	__u16  ByteCount;
1003 } __attribute__((packed)) OPENX_RSP;
1004 
1005 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
1006 
1007 /* Legacy write request for older servers */
1008 typedef struct smb_com_writex_req {
1009 	struct smb_hdr hdr;     /* wct = 12 */
1010 	__u8 AndXCommand;
1011 	__u8 AndXReserved;
1012 	__le16 AndXOffset;
1013 	__u16 Fid;
1014 	__le32 OffsetLow;
1015 	__u32 Reserved; /* Timeout */
1016 	__le16 WriteMode; /* 1 = write through */
1017 	__le16 Remaining;
1018 	__le16 Reserved2;
1019 	__le16 DataLengthLow;
1020 	__le16 DataOffset;
1021 	__le16 ByteCount;
1022 	__u8 Pad;		/* BB check for whether padded to DWORD
1023 				   boundary and optimum performance here */
1024 	char Data[0];
1025 } __attribute__((packed)) WRITEX_REQ;
1026 
1027 typedef struct smb_com_write_req {
1028 	struct smb_hdr hdr;	/* wct = 14 */
1029 	__u8 AndXCommand;
1030 	__u8 AndXReserved;
1031 	__le16 AndXOffset;
1032 	__u16 Fid;
1033 	__le32 OffsetLow;
1034 	__u32 Reserved;
1035 	__le16 WriteMode;
1036 	__le16 Remaining;
1037 	__le16 DataLengthHigh;
1038 	__le16 DataLengthLow;
1039 	__le16 DataOffset;
1040 	__le32 OffsetHigh;
1041 	__le16 ByteCount;
1042 	__u8 Pad;		/* BB check for whether padded to DWORD
1043 				   boundary and optimum performance here */
1044 	char Data[0];
1045 } __attribute__((packed)) WRITE_REQ;
1046 
1047 typedef struct smb_com_write_rsp {
1048 	struct smb_hdr hdr;	/* wct = 6 */
1049 	__u8 AndXCommand;
1050 	__u8 AndXReserved;
1051 	__le16 AndXOffset;
1052 	__le16 Count;
1053 	__le16 Remaining;
1054 	__le16 CountHigh;
1055 	__u16  Reserved;
1056 	__u16 ByteCount;
1057 } __attribute__((packed)) WRITE_RSP;
1058 
1059 /* legacy read request for older servers */
1060 typedef struct smb_com_readx_req {
1061 	struct smb_hdr hdr;	/* wct = 10 */
1062 	__u8 AndXCommand;
1063 	__u8 AndXReserved;
1064 	__le16 AndXOffset;
1065 	__u16 Fid;
1066 	__le32 OffsetLow;
1067 	__le16 MaxCount;
1068 	__le16 MinCount;	/* obsolete */
1069 	__le32 Reserved;
1070 	__le16 Remaining;
1071 	__le16 ByteCount;
1072 } __attribute__((packed)) READX_REQ;
1073 
1074 typedef struct smb_com_read_req {
1075 	struct smb_hdr hdr;	/* wct = 12 */
1076 	__u8 AndXCommand;
1077 	__u8 AndXReserved;
1078 	__le16 AndXOffset;
1079 	__u16 Fid;
1080 	__le32 OffsetLow;
1081 	__le16 MaxCount;
1082 	__le16 MinCount;		/* obsolete */
1083 	__le32 MaxCountHigh;
1084 	__le16 Remaining;
1085 	__le32 OffsetHigh;
1086 	__le16 ByteCount;
1087 } __attribute__((packed)) READ_REQ;
1088 
1089 typedef struct smb_com_read_rsp {
1090 	struct smb_hdr hdr;	/* wct = 12 */
1091 	__u8 AndXCommand;
1092 	__u8 AndXReserved;
1093 	__le16 AndXOffset;
1094 	__le16 Remaining;
1095 	__le16 DataCompactionMode;
1096 	__le16 Reserved;
1097 	__le16 DataLength;
1098 	__le16 DataOffset;
1099 	__le16 DataLengthHigh;
1100 	__u64 Reserved2;
1101 	__u16 ByteCount;
1102 	/* read response data immediately follows */
1103 } __attribute__((packed)) READ_RSP;
1104 
1105 typedef struct locking_andx_range {
1106 	__le16 Pid;
1107 	__le16 Pad;
1108 	__le32 OffsetHigh;
1109 	__le32 OffsetLow;
1110 	__le32 LengthHigh;
1111 	__le32 LengthLow;
1112 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1113 
1114 #define LOCKING_ANDX_SHARED_LOCK     0x01
1115 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1116 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1117 #define LOCKING_ANDX_CANCEL_LOCK     0x08
1118 #define LOCKING_ANDX_LARGE_FILES     0x10	/* always on for us */
1119 
1120 typedef struct smb_com_lock_req {
1121 	struct smb_hdr hdr;	/* wct = 8 */
1122 	__u8 AndXCommand;
1123 	__u8 AndXReserved;
1124 	__le16 AndXOffset;
1125 	__u16 Fid;
1126 	__u8 LockType;
1127 	__u8 OplockLevel;
1128 	__le32 Timeout;
1129 	__le16 NumberOfUnlocks;
1130 	__le16 NumberOfLocks;
1131 	__le16 ByteCount;
1132 	LOCKING_ANDX_RANGE Locks[1];
1133 } __attribute__((packed)) LOCK_REQ;
1134 
1135 /* lock type */
1136 #define CIFS_RDLCK	0
1137 #define CIFS_WRLCK	1
1138 #define CIFS_UNLCK      2
1139 typedef struct cifs_posix_lock {
1140 	__le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1141 	__le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1142 	__le32  pid;
1143 	__le64	start;
1144 	__le64	length;
1145 	/* BB what about additional owner info to identify network client */
1146 } __attribute__((packed)) CIFS_POSIX_LOCK;
1147 
1148 typedef struct smb_com_lock_rsp {
1149 	struct smb_hdr hdr;	/* wct = 2 */
1150 	__u8 AndXCommand;
1151 	__u8 AndXReserved;
1152 	__le16 AndXOffset;
1153 	__u16 ByteCount;
1154 } __attribute__((packed)) LOCK_RSP;
1155 
1156 typedef struct smb_com_rename_req {
1157 	struct smb_hdr hdr;	/* wct = 1 */
1158 	__le16 SearchAttributes;	/* target file attributes */
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)) RENAME_REQ;
1165 
1166 	/* copy request flags */
1167 #define COPY_MUST_BE_FILE      0x0001
1168 #define COPY_MUST_BE_DIR       0x0002
1169 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1170 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1171 #define COPY_VERIFY_WRITES     0x0010
1172 #define COPY_TREE              0x0020
1173 
1174 typedef struct smb_com_copy_req {
1175 	struct smb_hdr hdr;	/* wct = 3 */
1176 	__u16 Tid2;
1177 	__le16 OpenFunction;
1178 	__le16 Flags;
1179 	__le16 ByteCount;
1180 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1181 	unsigned char OldFileName[1];
1182 	/* followed by __u8 BufferFormat2 */
1183 	/* followed by NewFileName string */
1184 } __attribute__((packed)) COPY_REQ;
1185 
1186 typedef struct smb_com_copy_rsp {
1187 	struct smb_hdr hdr;     /* wct = 1 */
1188 	__le16 CopyCount;    /* number of files copied */
1189 	__u16 ByteCount;    /* may be zero */
1190 	__u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1191 	unsigned char ErrorFileName[1]; /* only present if error in copy */
1192 } __attribute__((packed)) COPY_RSP;
1193 
1194 #define CREATE_HARD_LINK		0x103
1195 #define MOVEFILE_COPY_ALLOWED		0x0002
1196 #define MOVEFILE_REPLACE_EXISTING	0x0001
1197 
1198 typedef struct smb_com_nt_rename_req {	/* A5 - also used for create hardlink */
1199 	struct smb_hdr hdr;	/* wct = 4 */
1200 	__le16 SearchAttributes;	/* target file attributes */
1201 	__le16 Flags;		/* spec says Information Level */
1202 	__le32 ClusterCount;
1203 	__le16 ByteCount;
1204 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1205 	unsigned char OldFileName[1];
1206 	/* followed by __u8 BufferFormat2 */
1207 	/* followed by NewFileName */
1208 } __attribute__((packed)) NT_RENAME_REQ;
1209 
1210 typedef struct smb_com_rename_rsp {
1211 	struct smb_hdr hdr;	/* wct = 0 */
1212 	__u16 ByteCount;	/* bct = 0 */
1213 } __attribute__((packed)) RENAME_RSP;
1214 
1215 typedef struct smb_com_delete_file_req {
1216 	struct smb_hdr hdr;	/* wct = 1 */
1217 	__le16 SearchAttributes;
1218 	__le16 ByteCount;
1219 	__u8 BufferFormat;	/* 4 = ASCII */
1220 	unsigned char fileName[1];
1221 } __attribute__((packed)) DELETE_FILE_REQ;
1222 
1223 typedef struct smb_com_delete_file_rsp {
1224 	struct smb_hdr hdr;	/* wct = 0 */
1225 	__u16 ByteCount;	/* bct = 0 */
1226 } __attribute__((packed)) DELETE_FILE_RSP;
1227 
1228 typedef struct smb_com_delete_directory_req {
1229 	struct smb_hdr hdr;	/* wct = 0 */
1230 	__le16 ByteCount;
1231 	__u8 BufferFormat;	/* 4 = ASCII */
1232 	unsigned char DirName[1];
1233 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1234 
1235 typedef struct smb_com_delete_directory_rsp {
1236 	struct smb_hdr hdr;	/* wct = 0 */
1237 	__u16 ByteCount;	/* bct = 0 */
1238 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1239 
1240 typedef struct smb_com_create_directory_req {
1241 	struct smb_hdr hdr;	/* wct = 0 */
1242 	__le16 ByteCount;
1243 	__u8 BufferFormat;	/* 4 = ASCII */
1244 	unsigned char DirName[1];
1245 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1246 
1247 typedef struct smb_com_create_directory_rsp {
1248 	struct smb_hdr hdr;	/* wct = 0 */
1249 	__u16 ByteCount;	/* bct = 0 */
1250 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1251 
1252 typedef struct smb_com_query_information_req {
1253 	struct smb_hdr hdr;     /* wct = 0 */
1254 	__le16 ByteCount;	/* 1 + namelen + 1 */
1255 	__u8 BufferFormat;      /* 4 = ASCII */
1256 	unsigned char FileName[1];
1257 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1258 
1259 typedef struct smb_com_query_information_rsp {
1260 	struct smb_hdr hdr;     /* wct = 10 */
1261 	__le16 attr;
1262 	__le32  last_write_time;
1263 	__le32 size;
1264 	__u16  reserved[5];
1265 	__le16 ByteCount;	/* bcc = 0 */
1266 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1267 
1268 typedef struct smb_com_setattr_req {
1269 	struct smb_hdr hdr; /* wct = 8 */
1270 	__le16 attr;
1271 	__le16 time_low;
1272 	__le16 time_high;
1273 	__le16 reserved[5]; /* must be zero */
1274 	__u16  ByteCount;
1275 	__u8   BufferFormat; /* 4 = ASCII */
1276 	unsigned char fileName[1];
1277 } __attribute__((packed)) SETATTR_REQ;
1278 
1279 typedef struct smb_com_setattr_rsp {
1280 	struct smb_hdr hdr;     /* wct = 0 */
1281 	__u16 ByteCount;        /* bct = 0 */
1282 } __attribute__((packed)) SETATTR_RSP;
1283 
1284 /* empty wct response to setattr */
1285 
1286 /*******************************************************/
1287 /* NT Transact structure definitions follow            */
1288 /* Currently only ioctl, acl (get security descriptor) */
1289 /* and notify are implemented                          */
1290 /*******************************************************/
1291 typedef struct smb_com_ntransact_req {
1292 	struct smb_hdr hdr; /* wct >= 19 */
1293 	__u8 MaxSetupCount;
1294 	__u16 Reserved;
1295 	__le32 TotalParameterCount;
1296 	__le32 TotalDataCount;
1297 	__le32 MaxParameterCount;
1298 	__le32 MaxDataCount;
1299 	__le32 ParameterCount;
1300 	__le32 ParameterOffset;
1301 	__le32 DataCount;
1302 	__le32 DataOffset;
1303 	__u8 SetupCount; /* four setup words follow subcommand */
1304 	/* SNIA spec incorrectly included spurious pad here */
1305 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1306 	/* SetupCount words follow then */
1307 	__le16 ByteCount;
1308 	__u8 Pad[3];
1309 	__u8 Parms[0];
1310 } __attribute__((packed)) NTRANSACT_REQ;
1311 
1312 typedef struct smb_com_ntransact_rsp {
1313 	struct smb_hdr hdr;     /* wct = 18 */
1314 	__u8 Reserved[3];
1315 	__le32 TotalParameterCount;
1316 	__le32 TotalDataCount;
1317 	__le32 ParameterCount;
1318 	__le32 ParameterOffset;
1319 	__le32 ParameterDisplacement;
1320 	__le32 DataCount;
1321 	__le32 DataOffset;
1322 	__le32 DataDisplacement;
1323 	__u8 SetupCount;   /* 0 */
1324 	__u16 ByteCount;
1325 	/* __u8 Pad[3]; */
1326 	/* parms and data follow */
1327 } __attribute__((packed)) NTRANSACT_RSP;
1328 
1329 /* See MS-SMB 2.2.7.2.1.1 */
1330 struct srv_copychunk {
1331 	__le64 SourceOffset;
1332 	__le64 DestinationOffset;
1333 	__le32 CopyLength;
1334 	__u32  Reserved;
1335 } __packed;
1336 
1337 typedef struct smb_com_transaction_ioctl_req {
1338 	struct smb_hdr hdr;	/* wct = 23 */
1339 	__u8 MaxSetupCount;
1340 	__u16 Reserved;
1341 	__le32 TotalParameterCount;
1342 	__le32 TotalDataCount;
1343 	__le32 MaxParameterCount;
1344 	__le32 MaxDataCount;
1345 	__le32 ParameterCount;
1346 	__le32 ParameterOffset;
1347 	__le32 DataCount;
1348 	__le32 DataOffset;
1349 	__u8 SetupCount; /* four setup words follow subcommand */
1350 	/* SNIA spec incorrectly included spurious pad here */
1351 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1352 	__le32 FunctionCode;
1353 	__u16 Fid;
1354 	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1355 	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1356 	__le16 ByteCount;
1357 	__u8 Pad[3];
1358 	__u8 Data[1];
1359 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1360 
1361 typedef struct smb_com_transaction_compr_ioctl_req {
1362 	struct smb_hdr hdr;	/* wct = 23 */
1363 	__u8 MaxSetupCount;
1364 	__u16 Reserved;
1365 	__le32 TotalParameterCount;
1366 	__le32 TotalDataCount;
1367 	__le32 MaxParameterCount;
1368 	__le32 MaxDataCount;
1369 	__le32 ParameterCount;
1370 	__le32 ParameterOffset;
1371 	__le32 DataCount;
1372 	__le32 DataOffset;
1373 	__u8 SetupCount; /* four setup words follow subcommand */
1374 	/* SNIA spec incorrectly included spurious pad here */
1375 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1376 	__le32 FunctionCode;
1377 	__u16 Fid;
1378 	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1379 	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1380 	__le16 ByteCount;
1381 	__u8 Pad[3];
1382 	__le16 compression_state;  /* See below for valid flags */
1383 } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
1384 
1385 /* compression state flags */
1386 #define COMPRESSION_FORMAT_NONE		0x0000
1387 #define COMPRESSION_FORMAT_DEFAULT	0x0001
1388 #define COMPRESSION_FORMAT_LZNT1	0x0002
1389 
1390 typedef struct smb_com_transaction_ioctl_rsp {
1391 	struct smb_hdr hdr;	/* wct = 19 */
1392 	__u8 Reserved[3];
1393 	__le32 TotalParameterCount;
1394 	__le32 TotalDataCount;
1395 	__le32 ParameterCount;
1396 	__le32 ParameterOffset;
1397 	__le32 ParameterDisplacement;
1398 	__le32 DataCount;
1399 	__le32 DataOffset;
1400 	__le32 DataDisplacement;
1401 	__u8 SetupCount;	/* 1 */
1402 	__le16 ReturnedDataLen;
1403 	__u16 ByteCount;
1404 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1405 
1406 #define CIFS_ACL_OWNER 1
1407 #define CIFS_ACL_GROUP 2
1408 #define CIFS_ACL_DACL  4
1409 #define CIFS_ACL_SACL  8
1410 
1411 typedef struct smb_com_transaction_qsec_req {
1412 	struct smb_hdr hdr;     /* wct = 19 */
1413 	__u8 MaxSetupCount;
1414 	__u16 Reserved;
1415 	__le32 TotalParameterCount;
1416 	__le32 TotalDataCount;
1417 	__le32 MaxParameterCount;
1418 	__le32 MaxDataCount;
1419 	__le32 ParameterCount;
1420 	__le32 ParameterOffset;
1421 	__le32 DataCount;
1422 	__le32 DataOffset;
1423 	__u8 SetupCount; /* no setup words follow subcommand */
1424 	/* SNIA spec incorrectly included spurious pad here */
1425 	__le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1426 	__le16 ByteCount; /* bcc = 3 + 8 */
1427 	__u8 Pad[3];
1428 	__u16 Fid;
1429 	__u16 Reserved2;
1430 	__le32 AclFlags;
1431 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1432 
1433 
1434 typedef struct smb_com_transaction_ssec_req {
1435 	struct smb_hdr hdr;     /* wct = 19 */
1436 	__u8 MaxSetupCount;
1437 	__u16 Reserved;
1438 	__le32 TotalParameterCount;
1439 	__le32 TotalDataCount;
1440 	__le32 MaxParameterCount;
1441 	__le32 MaxDataCount;
1442 	__le32 ParameterCount;
1443 	__le32 ParameterOffset;
1444 	__le32 DataCount;
1445 	__le32 DataOffset;
1446 	__u8 SetupCount; /* no setup words follow subcommand */
1447 	/* SNIA spec incorrectly included spurious pad here */
1448 	__le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1449 	__le16 ByteCount; /* bcc = 3 + 8 */
1450 	__u8 Pad[3];
1451 	__u16 Fid;
1452 	__u16 Reserved2;
1453 	__le32 AclFlags;
1454 } __attribute__((packed)) SET_SEC_DESC_REQ;
1455 
1456 typedef struct smb_com_transaction_change_notify_req {
1457 	struct smb_hdr hdr;     /* wct = 23 */
1458 	__u8 MaxSetupCount;
1459 	__u16 Reserved;
1460 	__le32 TotalParameterCount;
1461 	__le32 TotalDataCount;
1462 	__le32 MaxParameterCount;
1463 	__le32 MaxDataCount;
1464 	__le32 ParameterCount;
1465 	__le32 ParameterOffset;
1466 	__le32 DataCount;
1467 	__le32 DataOffset;
1468 	__u8 SetupCount; /* four setup words follow subcommand */
1469 	/* SNIA spec incorrectly included spurious pad here */
1470 	__le16 SubCommand;/* 4 = Change Notify */
1471 	__le32 CompletionFilter;  /* operation to monitor */
1472 	__u16 Fid;
1473 	__u8 WatchTree;  /* 1 = Monitor subdirectories */
1474 	__u8 Reserved2;
1475 	__le16 ByteCount;
1476 /* 	__u8 Pad[3];*/
1477 /*	__u8 Data[1];*/
1478 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1479 
1480 /* BB eventually change to use generic ntransact rsp struct
1481       and validation routine */
1482 typedef struct smb_com_transaction_change_notify_rsp {
1483 	struct smb_hdr hdr;	/* wct = 18 */
1484 	__u8 Reserved[3];
1485 	__le32 TotalParameterCount;
1486 	__le32 TotalDataCount;
1487 	__le32 ParameterCount;
1488 	__le32 ParameterOffset;
1489 	__le32 ParameterDisplacement;
1490 	__le32 DataCount;
1491 	__le32 DataOffset;
1492 	__le32 DataDisplacement;
1493 	__u8 SetupCount;   /* 0 */
1494 	__u16 ByteCount;
1495 	/* __u8 Pad[3]; */
1496 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1497 /* Completion Filter flags for Notify */
1498 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1499 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1500 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1501 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1502 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1503 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1504 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1505 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1506 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1507 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1508 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1509 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1510 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1511 
1512 #define FILE_ACTION_ADDED		0x00000001
1513 #define FILE_ACTION_REMOVED		0x00000002
1514 #define FILE_ACTION_MODIFIED		0x00000003
1515 #define FILE_ACTION_RENAMED_OLD_NAME	0x00000004
1516 #define FILE_ACTION_RENAMED_NEW_NAME	0x00000005
1517 #define FILE_ACTION_ADDED_STREAM	0x00000006
1518 #define FILE_ACTION_REMOVED_STREAM	0x00000007
1519 #define FILE_ACTION_MODIFIED_STREAM	0x00000008
1520 
1521 /* response contains array of the following structures */
1522 struct file_notify_information {
1523 	__le32 NextEntryOffset;
1524 	__le32 Action;
1525 	__le32 FileNameLength;
1526 	__u8  FileName[0];
1527 } __attribute__((packed));
1528 
1529 /* For IO_REPARSE_TAG_SYMLINK */
1530 struct reparse_symlink_data {
1531 	__le32	ReparseTag;
1532 	__le16	ReparseDataLength;
1533 	__u16	Reserved;
1534 	__le16	SubstituteNameOffset;
1535 	__le16	SubstituteNameLength;
1536 	__le16	PrintNameOffset;
1537 	__le16	PrintNameLength;
1538 	__le32	Flags;
1539 	char	PathBuffer[0];
1540 } __attribute__((packed));
1541 
1542 /* For IO_REPARSE_TAG_NFS */
1543 #define NFS_SPECFILE_LNK	0x00000000014B4E4C
1544 #define NFS_SPECFILE_CHR	0x0000000000524843
1545 #define NFS_SPECFILE_BLK	0x00000000004B4C42
1546 #define NFS_SPECFILE_FIFO	0x000000004F464946
1547 #define NFS_SPECFILE_SOCK	0x000000004B434F53
1548 struct reparse_posix_data {
1549 	__le32	ReparseTag;
1550 	__le16	ReparseDataLength;
1551 	__u16	Reserved;
1552 	__le64	InodeType; /* LNK, FIFO, CHR etc. */
1553 	char	PathBuffer[0];
1554 } __attribute__((packed));
1555 
1556 struct cifs_quota_data {
1557 	__u32	rsrvd1;  /* 0 */
1558 	__u32	sid_size;
1559 	__u64	rsrvd2;  /* 0 */
1560 	__u64	space_used;
1561 	__u64	soft_limit;
1562 	__u64	hard_limit;
1563 	char	sid[1];  /* variable size? */
1564 } __attribute__((packed));
1565 
1566 /* quota sub commands */
1567 #define QUOTA_LIST_CONTINUE	    0
1568 #define QUOTA_LIST_START	0x100
1569 #define QUOTA_FOR_SID		0x101
1570 
1571 struct trans2_req {
1572 	/* struct smb_hdr hdr precedes. Set wct = 14+ */
1573 	__le16 TotalParameterCount;
1574 	__le16 TotalDataCount;
1575 	__le16 MaxParameterCount;
1576 	__le16 MaxDataCount;
1577 	__u8 MaxSetupCount;
1578 	__u8 Reserved;
1579 	__le16 Flags;
1580 	__le32 Timeout;
1581 	__u16 Reserved2;
1582 	__le16 ParameterCount;
1583 	__le16 ParameterOffset;
1584 	__le16 DataCount;
1585 	__le16 DataOffset;
1586 	__u8 SetupCount;
1587 	__u8 Reserved3;
1588 	__le16 SubCommand; /* 1st setup word - SetupCount words follow */
1589 	__le16 ByteCount;
1590 } __attribute__((packed));
1591 
1592 struct smb_t2_req {
1593 	struct smb_hdr hdr;
1594 	struct trans2_req t2_req;
1595 } __attribute__((packed));
1596 
1597 struct trans2_resp {
1598 	/* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1599 	__le16 TotalParameterCount;
1600 	__le16 TotalDataCount;
1601 	__u16 Reserved;
1602 	__le16 ParameterCount;
1603 	__le16 ParameterOffset;
1604 	__le16 ParameterDisplacement;
1605 	__le16 DataCount;
1606 	__le16 DataOffset;
1607 	__le16 DataDisplacement;
1608 	__u8 SetupCount;
1609 	__u8 Reserved1;
1610 	/* SetupWords[SetupCount];
1611 	__u16 ByteCount;
1612 	__u16 Reserved2;*/
1613 	/* data area follows */
1614 } __attribute__((packed));
1615 
1616 struct smb_t2_rsp {
1617 	struct smb_hdr hdr;
1618 	struct trans2_resp t2_rsp;
1619 } __attribute__((packed));
1620 
1621 /* PathInfo/FileInfo infolevels */
1622 #define SMB_INFO_STANDARD                   1
1623 #define SMB_SET_FILE_EA                     2
1624 #define SMB_QUERY_FILE_EA_SIZE              2
1625 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1626 #define SMB_INFO_QUERY_ALL_EAS              4
1627 #define SMB_INFO_IS_NAME_VALID              6
1628 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1629 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1630 #define SMB_QUERY_FILE_EA_INFO          0x103
1631 #define SMB_QUERY_FILE_NAME_INFO        0x104
1632 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1633 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1634 #define SMB_QUERY_FILE_ALL_INFO         0x107
1635 #define SMB_QUERY_ALT_NAME_INFO         0x108
1636 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1637 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1638 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1639 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1640 #define SMB_QUERY_POSIX_ACL             0x204
1641 #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1642 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1643 #define SMB_QUERY_POSIX_PERMISSION      0x207
1644 #define SMB_QUERY_POSIX_LOCK            0x208
1645 /* #define SMB_POSIX_OPEN               0x209 */
1646 /* #define SMB_POSIX_UNLINK             0x20a */
1647 #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1648 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1649 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1650 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1651 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1652 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1653 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1654 
1655 
1656 #define SMB_SET_FILE_BASIC_INFO	        0x101
1657 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1658 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1659 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1660 #define SMB_SET_FILE_UNIX_BASIC         0x200
1661 #define SMB_SET_FILE_UNIX_LINK          0x201
1662 #define SMB_SET_FILE_UNIX_HLINK         0x203
1663 #define SMB_SET_POSIX_ACL               0x204
1664 #define SMB_SET_XATTR                   0x205
1665 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1666 #define SMB_SET_POSIX_LOCK              0x208
1667 #define SMB_POSIX_OPEN                  0x209
1668 #define SMB_POSIX_UNLINK                0x20a
1669 #define SMB_SET_FILE_UNIX_INFO2         0x20b
1670 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1671 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1672 #define SMB_FILE_ALL_INFO2              0x3fa
1673 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1674 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1675 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1676 #define SMB_FILE_QUOTA_INFO             0x408
1677 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1678 #define SMB_FILE_MAXIMUM_INFO           0x40d
1679 
1680 /* Find File infolevels */
1681 #define SMB_FIND_FILE_INFO_STANDARD       0x001
1682 #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1683 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1684 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1685 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1686 #define SMB_FIND_FILE_NAMES_INFO          0x103
1687 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1688 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1689 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1690 #define SMB_FIND_FILE_UNIX                0x202
1691 
1692 typedef struct smb_com_transaction2_qpi_req {
1693 	struct smb_hdr hdr;	/* wct = 14+ */
1694 	__le16 TotalParameterCount;
1695 	__le16 TotalDataCount;
1696 	__le16 MaxParameterCount;
1697 	__le16 MaxDataCount;
1698 	__u8 MaxSetupCount;
1699 	__u8 Reserved;
1700 	__le16 Flags;
1701 	__le32 Timeout;
1702 	__u16 Reserved2;
1703 	__le16 ParameterCount;
1704 	__le16 ParameterOffset;
1705 	__le16 DataCount;
1706 	__le16 DataOffset;
1707 	__u8 SetupCount;
1708 	__u8 Reserved3;
1709 	__le16 SubCommand;	/* one setup word */
1710 	__le16 ByteCount;
1711 	__u8 Pad;
1712 	__le16 InformationLevel;
1713 	__u32 Reserved4;
1714 	char FileName[1];
1715 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1716 
1717 typedef struct smb_com_transaction2_qpi_rsp {
1718 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1719 	struct trans2_resp t2;
1720 	__u16 ByteCount;
1721 	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1722 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1723 
1724 typedef struct smb_com_transaction2_spi_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 	__le16 InformationLevel;
1746 	__u32 Reserved4;
1747 	char FileName[1];
1748 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1749 
1750 typedef struct smb_com_transaction2_spi_rsp {
1751 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1752 	struct trans2_resp t2;
1753 	__u16 ByteCount;
1754 	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1755 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1756 
1757 struct set_file_rename {
1758 	__le32 overwrite;   /* 1 = overwrite dest */
1759 	__u32 root_fid;   /* zero */
1760 	__le32 target_name_len;
1761 	char  target_name[0];  /* Must be unicode */
1762 } __attribute__((packed));
1763 
1764 struct smb_com_transaction2_sfi_req {
1765 	struct smb_hdr hdr;	/* wct = 15 */
1766 	__le16 TotalParameterCount;
1767 	__le16 TotalDataCount;
1768 	__le16 MaxParameterCount;
1769 	__le16 MaxDataCount;
1770 	__u8 MaxSetupCount;
1771 	__u8 Reserved;
1772 	__le16 Flags;
1773 	__le32 Timeout;
1774 	__u16 Reserved2;
1775 	__le16 ParameterCount;
1776 	__le16 ParameterOffset;
1777 	__le16 DataCount;
1778 	__le16 DataOffset;
1779 	__u8 SetupCount;
1780 	__u8 Reserved3;
1781 	__le16 SubCommand;	/* one setup word */
1782 	__le16 ByteCount;
1783 	__u8 Pad;
1784 	__u16 Pad1;
1785 	__u16 Fid;
1786 	__le16 InformationLevel;
1787 	__u16 Reserved4;
1788 } __attribute__((packed));
1789 
1790 struct smb_com_transaction2_sfi_rsp {
1791 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1792 	struct trans2_resp t2;
1793 	__u16 ByteCount;
1794 	__u16 Reserved2;	/* parameter word reserved -
1795 					present for infolevels > 100 */
1796 } __attribute__((packed));
1797 
1798 struct smb_t2_qfi_req {
1799 	struct	smb_hdr hdr;
1800 	struct	trans2_req t2;
1801 	__u8	Pad;
1802 	__u16	Fid;
1803 	__le16	InformationLevel;
1804 } __attribute__((packed));
1805 
1806 struct smb_t2_qfi_rsp {
1807 	struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1808 	struct trans2_resp t2;
1809 	__u16 ByteCount;
1810 	__u16 Reserved2;        /* parameter word reserved -
1811 				   present for infolevels > 100 */
1812 } __attribute__((packed));
1813 
1814 /*
1815  * Flags on T2 FINDFIRST and FINDNEXT
1816  */
1817 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1818 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1819 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1820 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1821 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1822 
1823 /*
1824  * Size of the resume key on FINDFIRST and FINDNEXT calls
1825  */
1826 #define CIFS_SMB_RESUME_KEY_SIZE 4
1827 
1828 typedef struct smb_com_transaction2_ffirst_req {
1829 	struct smb_hdr hdr;	/* wct = 15 */
1830 	__le16 TotalParameterCount;
1831 	__le16 TotalDataCount;
1832 	__le16 MaxParameterCount;
1833 	__le16 MaxDataCount;
1834 	__u8 MaxSetupCount;
1835 	__u8 Reserved;
1836 	__le16 Flags;
1837 	__le32 Timeout;
1838 	__u16 Reserved2;
1839 	__le16 ParameterCount;
1840 	__le16 ParameterOffset;
1841 	__le16 DataCount;
1842 	__le16 DataOffset;
1843 	__u8 SetupCount;	/* one */
1844 	__u8 Reserved3;
1845 	__le16 SubCommand;	/* TRANS2_FIND_FIRST */
1846 	__le16 ByteCount;
1847 	__u8 Pad;
1848 	__le16 SearchAttributes;
1849 	__le16 SearchCount;
1850 	__le16 SearchFlags;
1851 	__le16 InformationLevel;
1852 	__le32 SearchStorageType;
1853 	char FileName[1];
1854 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1855 
1856 typedef struct smb_com_transaction2_ffirst_rsp {
1857 	struct smb_hdr hdr;	/* wct = 10 */
1858 	struct trans2_resp t2;
1859 	__u16 ByteCount;
1860 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1861 
1862 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1863 	__u16 SearchHandle;
1864 	__le16 SearchCount;
1865 	__le16 EndofSearch;
1866 	__le16 EAErrorOffset;
1867 	__le16 LastNameOffset;
1868 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1869 
1870 typedef struct smb_com_transaction2_fnext_req {
1871 	struct smb_hdr hdr;	/* wct = 15 */
1872 	__le16 TotalParameterCount;
1873 	__le16 TotalDataCount;
1874 	__le16 MaxParameterCount;
1875 	__le16 MaxDataCount;
1876 	__u8 MaxSetupCount;
1877 	__u8 Reserved;
1878 	__le16 Flags;
1879 	__le32 Timeout;
1880 	__u16 Reserved2;
1881 	__le16 ParameterCount;
1882 	__le16 ParameterOffset;
1883 	__le16 DataCount;
1884 	__le16 DataOffset;
1885 	__u8 SetupCount;	/* one */
1886 	__u8 Reserved3;
1887 	__le16 SubCommand;	/* TRANS2_FIND_NEXT */
1888 	__le16 ByteCount;
1889 	__u8 Pad;
1890 	__u16 SearchHandle;
1891 	__le16 SearchCount;
1892 	__le16 InformationLevel;
1893 	__u32 ResumeKey;
1894 	__le16 SearchFlags;
1895 	char ResumeFileName[1];
1896 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1897 
1898 typedef struct smb_com_transaction2_fnext_rsp {
1899 	struct smb_hdr hdr;	/* wct = 10 */
1900 	struct trans2_resp t2;
1901 	__u16 ByteCount;
1902 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1903 
1904 typedef struct smb_com_transaction2_fnext_rsp_parms {
1905 	__le16 SearchCount;
1906 	__le16 EndofSearch;
1907 	__le16 EAErrorOffset;
1908 	__le16 LastNameOffset;
1909 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1910 
1911 /* QFSInfo Levels */
1912 #define SMB_INFO_ALLOCATION         1
1913 #define SMB_INFO_VOLUME             2
1914 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1915 #define SMB_QUERY_FS_SIZE_INFO      0x103
1916 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1917 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1918 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1919 #define SMB_QUERY_POSIX_FS_INFO     0x201
1920 #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1921 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1922 #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1923 					    FILE_SYSTEM__UNIX_INFO to tell
1924 					    whether new NTIOCTL available
1925 					    (0xACE) for WAN friendly SMB
1926 					    operations to be carried */
1927 #define SMB_QUERY_LABEL_INFO        0x3ea
1928 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1929 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1930 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1931 
1932 typedef struct smb_com_transaction2_qfsi_req {
1933 	struct smb_hdr hdr;	/* wct = 14+ */
1934 	__le16 TotalParameterCount;
1935 	__le16 TotalDataCount;
1936 	__le16 MaxParameterCount;
1937 	__le16 MaxDataCount;
1938 	__u8 MaxSetupCount;
1939 	__u8 Reserved;
1940 	__le16 Flags;
1941 	__le32 Timeout;
1942 	__u16 Reserved2;
1943 	__le16 ParameterCount;
1944 	__le16 ParameterOffset;
1945 	__le16 DataCount;
1946 	__le16 DataOffset;
1947 	__u8 SetupCount;
1948 	__u8 Reserved3;
1949 	__le16 SubCommand;	/* one setup word */
1950 	__le16 ByteCount;
1951 	__u8 Pad;
1952 	__le16 InformationLevel;
1953 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1954 
1955 typedef struct smb_com_transaction_qfsi_rsp {
1956 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1957 	struct trans2_resp t2;
1958 	__u16 ByteCount;
1959 	__u8 Pad;	/* may be three bytes? *//* followed by data area */
1960 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1961 
1962 typedef struct whoami_rsp_data { /* Query level 0x202 */
1963 	__u32 flags; /* 0 = Authenticated user 1 = GUEST */
1964 	__u32 mask; /* which flags bits server understands ie 0x0001 */
1965 	__u64 unix_user_id;
1966 	__u64 unix_user_gid;
1967 	__u32 number_of_supplementary_gids; /* may be zero */
1968 	__u32 number_of_sids; /* may be zero */
1969 	__u32 length_of_sid_array; /* in bytes - may be zero */
1970 	__u32 pad; /* reserved - MBZ */
1971 	/* __u64 gid_array[0]; */  /* may be empty */
1972 	/* __u8 * psid_list */  /* may be empty */
1973 } __attribute__((packed)) WHOAMI_RSP_DATA;
1974 
1975 /* SETFSInfo Levels */
1976 #define SMB_SET_CIFS_UNIX_INFO    0x200
1977 /* level 0x203 is defined above in list of QFS info levels */
1978 /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
1979 
1980 /* Level 0x200 request structure follows */
1981 typedef struct smb_com_transaction2_setfsi_req {
1982 	struct smb_hdr hdr;	/* wct = 15 */
1983 	__le16 TotalParameterCount;
1984 	__le16 TotalDataCount;
1985 	__le16 MaxParameterCount;
1986 	__le16 MaxDataCount;
1987 	__u8 MaxSetupCount;
1988 	__u8 Reserved;
1989 	__le16 Flags;
1990 	__le32 Timeout;
1991 	__u16 Reserved2;
1992 	__le16 ParameterCount;	/* 4 */
1993 	__le16 ParameterOffset;
1994 	__le16 DataCount;	/* 12 */
1995 	__le16 DataOffset;
1996 	__u8 SetupCount;	/* one */
1997 	__u8 Reserved3;
1998 	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
1999 	__le16 ByteCount;
2000 	__u8 Pad;
2001 	__u16 FileNum;		/* Parameters start. */
2002 	__le16 InformationLevel;/* Parameters end. */
2003 	__le16 ClientUnixMajor; /* Data start. */
2004 	__le16 ClientUnixMinor;
2005 	__le64 ClientUnixCap;   /* Data end */
2006 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
2007 
2008 /* level 0x203 request structure follows */
2009 typedef struct smb_com_transaction2_setfs_enc_req {
2010 	struct smb_hdr hdr;	/* wct = 15 */
2011 	__le16 TotalParameterCount;
2012 	__le16 TotalDataCount;
2013 	__le16 MaxParameterCount;
2014 	__le16 MaxDataCount;
2015 	__u8 MaxSetupCount;
2016 	__u8 Reserved;
2017 	__le16 Flags;
2018 	__le32 Timeout;
2019 	__u16 Reserved2;
2020 	__le16 ParameterCount;	/* 4 */
2021 	__le16 ParameterOffset;
2022 	__le16 DataCount;	/* 12 */
2023 	__le16 DataOffset;
2024 	__u8 SetupCount;	/* one */
2025 	__u8 Reserved3;
2026 	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
2027 	__le16 ByteCount;
2028 	__u8 Pad;
2029 	__u16  Reserved4;	/* Parameters start. */
2030 	__le16 InformationLevel;/* Parameters end. */
2031 	/* NTLMSSP Blob, Data start. */
2032 } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
2033 
2034 /* response for setfsinfo levels 0x200 and 0x203 */
2035 typedef struct smb_com_transaction2_setfsi_rsp {
2036 	struct smb_hdr hdr;	/* wct = 10 */
2037 	struct trans2_resp t2;
2038 	__u16 ByteCount;
2039 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
2040 
2041 typedef struct smb_com_transaction2_get_dfs_refer_req {
2042 	struct smb_hdr hdr;	/* wct = 15 */
2043 	__le16 TotalParameterCount;
2044 	__le16 TotalDataCount;
2045 	__le16 MaxParameterCount;
2046 	__le16 MaxDataCount;
2047 	__u8 MaxSetupCount;
2048 	__u8 Reserved;
2049 	__le16 Flags;
2050 	__le32 Timeout;
2051 	__u16 Reserved2;
2052 	__le16 ParameterCount;
2053 	__le16 ParameterOffset;
2054 	__le16 DataCount;
2055 	__le16 DataOffset;
2056 	__u8 SetupCount;
2057 	__u8 Reserved3;
2058 	__le16 SubCommand;	/* one setup word */
2059 	__le16 ByteCount;
2060 	__u8 Pad[3];		/* Win2K has sent 0x0F01 (max response length
2061 				   perhaps?) followed by one byte pad - doesn't
2062 				   seem to matter though */
2063 	__le16 MaxReferralLevel;
2064 	char RequestFileName[1];
2065 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
2066 
2067 #define DFS_VERSION cpu_to_le16(0x0003)
2068 
2069 /* DFS server target type */
2070 #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
2071 #define DFS_TYPE_ROOT 0x0001
2072 
2073 /* Referral Entry Flags */
2074 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
2075 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2076 
2077 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2078 	__le16 VersionNumber;  /* must be 3 or 4 */
2079 	__le16 Size;
2080 	__le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2081 	__le16 ReferralEntryFlags;
2082 	__le32 TimeToLive;
2083 	__le16 DfsPathOffset;
2084 	__le16 DfsAlternatePathOffset;
2085 	__le16 NetworkAddressOffset; /* offset of the link target */
2086 	__u8   ServiceSiteGuid[16];  /* MBZ, ignored */
2087 } __attribute__((packed)) REFERRAL3;
2088 
2089 typedef struct smb_com_transaction_get_dfs_refer_rsp {
2090 	struct smb_hdr hdr;	/* wct = 10 */
2091 	struct trans2_resp t2;
2092 	__u16 ByteCount;
2093 	__u8 Pad;
2094 	__le16 PathConsumed;
2095 	__le16 NumberOfReferrals;
2096 	__le32 DFSFlags;
2097 	REFERRAL3 referrals[1];	/* array of level 3 dfs_referral structures */
2098 	/* followed by the strings pointed to by the referral structures */
2099 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_RSP;
2100 
2101 /* DFS Flags */
2102 #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2103 #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2104 #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2105 
2106 /*
2107  ************************************************************************
2108  * All structs for everything above the SMB PDUs themselves
2109  * (such as the T2 level specific data) go here
2110  ************************************************************************
2111  */
2112 
2113 /*
2114  * Information on a server
2115  */
2116 
2117 struct serverInfo {
2118 	char name[16];
2119 	unsigned char versionMajor;
2120 	unsigned char versionMinor;
2121 	unsigned long type;
2122 	unsigned int commentOffset;
2123 } __attribute__((packed));
2124 
2125 /*
2126  * The following structure is the format of the data returned on a NetShareEnum
2127  * with level "90" (x5A)
2128  */
2129 
2130 struct shareInfo {
2131 	char shareName[13];
2132 	char pad;
2133 	unsigned short type;
2134 	unsigned int commentOffset;
2135 } __attribute__((packed));
2136 
2137 struct aliasInfo {
2138 	char aliasName[9];
2139 	char pad;
2140 	unsigned int commentOffset;
2141 	unsigned char type[2];
2142 } __attribute__((packed));
2143 
2144 struct aliasInfo92 {
2145 	int aliasNameOffset;
2146 	int serverNameOffset;
2147 	int shareNameOffset;
2148 } __attribute__((packed));
2149 
2150 typedef struct {
2151 	__le64 TotalAllocationUnits;
2152 	__le64 FreeAllocationUnits;
2153 	__le32 SectorsPerAllocationUnit;
2154 	__le32 BytesPerSector;
2155 } __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */
2156 
2157 typedef struct {
2158 	__le32 fsid;
2159 	__le32 SectorsPerAllocationUnit;
2160 	__le32 TotalAllocationUnits;
2161 	__le32 FreeAllocationUnits;
2162 	__le16  BytesPerSector;
2163 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2164 
2165 typedef struct {
2166 	__le16 MajorVersionNumber;
2167 	__le16 MinorVersionNumber;
2168 	__le64 Capability;
2169 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2170 
2171 /* Version numbers for CIFS UNIX major and minor. */
2172 #define CIFS_UNIX_MAJOR_VERSION 1
2173 #define CIFS_UNIX_MINOR_VERSION 0
2174 
2175 /* Linux/Unix extensions capability flags */
2176 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2177 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2178 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2179 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2180 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2181 #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2182 						      calls including posix open
2183 						      and posix unlink */
2184 #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
2185 						      to 0xFFFF00 */
2186 #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2187 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2188 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2189 #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
2190 						      QFS PROXY call */
2191 #ifdef CONFIG_CIFS_POSIX
2192 /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
2193    LockingX instead of posix locking call on unix sess (and we do not expect
2194    LockingX to use different (ie Windows) semantics than posix locking on
2195    the same session (if WINE needs to do this later, we can add this cap
2196    back in later */
2197 /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2198 #define CIFS_UNIX_CAP_MASK              0x000003db
2199 #else
2200 #define CIFS_UNIX_CAP_MASK              0x00000013
2201 #endif /* CONFIG_CIFS_POSIX */
2202 
2203 
2204 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2205 
2206 typedef struct {
2207 	/* For undefined recommended transfer size return -1 in that field */
2208 	__le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2209 	__le32 BlockSize;
2210     /* The next three fields are in terms of the block size.
2211 	(above). If block size is unknown, 4096 would be a
2212 	reasonable block size for a server to report.
2213 	Note that returning the blocks/blocksavail removes need
2214 	to make a second call (to QFSInfo level 0x103 to get this info.
2215 	UserBlockAvail is typically less than or equal to BlocksAvail,
2216 	if no distinction is made return the same value in each */
2217 	__le64 TotalBlocks;
2218 	__le64 BlocksAvail;       /* bfree */
2219 	__le64 UserBlocksAvail;   /* bavail */
2220     /* For undefined Node fields or FSID return -1 */
2221 	__le64 TotalFileNodes;
2222 	__le64 FreeFileNodes;
2223 	__le64 FileSysIdentifier;   /* fsid */
2224 	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2225 	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2226 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2227 
2228 /* DeviceType Flags */
2229 #define FILE_DEVICE_CD_ROM              0x00000002
2230 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2231 #define FILE_DEVICE_DFS                 0x00000006
2232 #define FILE_DEVICE_DISK                0x00000007
2233 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2234 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2235 #define FILE_DEVICE_NAMED_PIPE          0x00000011
2236 #define FILE_DEVICE_NETWORK             0x00000012
2237 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2238 #define FILE_DEVICE_NULL                0x00000015
2239 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2240 #define FILE_DEVICE_PRINTER             0x00000018
2241 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2242 #define FILE_DEVICE_STREAMS             0x0000001e
2243 #define FILE_DEVICE_TAPE                0x0000001f
2244 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2245 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2246 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2247 
2248 /* Device Characteristics */
2249 #define FILE_REMOVABLE_MEDIA			0x00000001
2250 #define FILE_READ_ONLY_DEVICE			0x00000002
2251 #define FILE_FLOPPY_DISKETTE			0x00000004
2252 #define FILE_WRITE_ONCE_MEDIA			0x00000008
2253 #define FILE_REMOTE_DEVICE			0x00000010
2254 #define FILE_DEVICE_IS_MOUNTED			0x00000020
2255 #define FILE_VIRTUAL_VOLUME			0x00000040
2256 #define FILE_DEVICE_SECURE_OPEN			0x00000100
2257 #define FILE_CHARACTERISTIC_TS_DEVICE		0x00001000
2258 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE	0x00002000
2259 #define FILE_PORTABLE_DEVICE			0x00004000
2260 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
2261 
2262 typedef struct {
2263 	__le32 DeviceType;
2264 	__le32 DeviceCharacteristics;
2265 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2266 
2267 /* minimum includes first three fields, and empty FS Name */
2268 #define MIN_FS_ATTR_INFO_SIZE 12
2269 
2270 
2271 /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
2272 #define FILE_SUPPORTS_SPARSE_VDL	0x10000000 /* faster nonsparse extend */
2273 #define FILE_SUPPORTS_BLOCK_REFCOUNTING	0x08000000 /* allow ioctl dup extents */
2274 #define FILE_SUPPORT_INTEGRITY_STREAMS	0x04000000
2275 #define FILE_SUPPORTS_USN_JOURNAL	0x02000000
2276 #define FILE_SUPPORTS_OPEN_BY_FILE_ID	0x01000000
2277 #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
2278 #define FILE_SUPPORTS_HARD_LINKS	0x00400000
2279 #define FILE_SUPPORTS_TRANSACTIONS	0x00200000
2280 #define FILE_SEQUENTIAL_WRITE_ONCE	0x00100000
2281 #define FILE_READ_ONLY_VOLUME		0x00080000
2282 #define FILE_NAMED_STREAMS		0x00040000
2283 #define FILE_SUPPORTS_ENCRYPTION	0x00020000
2284 #define FILE_SUPPORTS_OBJECT_IDS	0x00010000
2285 #define FILE_VOLUME_IS_COMPRESSED	0x00008000
2286 #define FILE_SUPPORTS_REMOTE_STORAGE	0x00000100
2287 #define FILE_SUPPORTS_REPARSE_POINTS	0x00000080
2288 #define FILE_SUPPORTS_SPARSE_FILES	0x00000040
2289 #define FILE_VOLUME_QUOTAS		0x00000020
2290 #define FILE_FILE_COMPRESSION		0x00000010
2291 #define FILE_PERSISTENT_ACLS		0x00000008
2292 #define FILE_UNICODE_ON_DISK		0x00000004
2293 #define FILE_CASE_PRESERVED_NAMES	0x00000002
2294 #define FILE_CASE_SENSITIVE_SEARCH	0x00000001
2295 typedef struct {
2296 	__le32 Attributes;
2297 	__le32 MaxPathNameComponentLength;
2298 	__le32 FileSystemNameLen;
2299 	char FileSystemName[52]; /* do not have to save this - get subset? */
2300 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2301 
2302 /******************************************************************************/
2303 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2304 /******************************************************************************/
2305 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2306 	__le64 CreationTime;
2307 	__le64 LastAccessTime;
2308 	__le64 LastWriteTime;
2309 	__le64 ChangeTime;
2310 	__le32 Attributes;
2311 	__u32 Pad1;
2312 	__le64 AllocationSize;
2313 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2314 	__le32 NumberOfLinks;	/* hard links */
2315 	__u8 DeletePending;
2316 	__u8 Directory;
2317 	__u16 Pad2;
2318 	__le64 IndexNumber;
2319 	__le32 EASize;
2320 	__le32 AccessFlags;
2321 	__u64 IndexNumber1;
2322 	__le64 CurrentByteOffset;
2323 	__le32 Mode;
2324 	__le32 AlignmentRequirement;
2325 	__le32 FileNameLength;
2326 	char FileName[1];
2327 } __attribute__((packed)) FILE_ALL_INFO;	/* level 0x107 QPathInfo */
2328 
2329 typedef struct {
2330 	__le64 AllocationSize;
2331 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2332 	__le32 NumberOfLinks;	/* hard links */
2333 	__u8 DeletePending;
2334 	__u8 Directory;
2335 	__u16 Pad;
2336 } __attribute__((packed)) FILE_STANDARD_INFO;	/* level 0x102 QPathInfo */
2337 
2338 
2339 /* defines for enumerating possible values of the Unix type field below */
2340 #define UNIX_FILE      0
2341 #define UNIX_DIR       1
2342 #define UNIX_SYMLINK   2
2343 #define UNIX_CHARDEV   3
2344 #define UNIX_BLOCKDEV  4
2345 #define UNIX_FIFO      5
2346 #define UNIX_SOCKET    6
2347 typedef struct {
2348 	__le64 EndOfFile;
2349 	__le64 NumOfBytes;
2350 	__le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2351 	__le64 LastAccessTime;
2352 	__le64 LastModificationTime;
2353 	__le64 Uid;
2354 	__le64 Gid;
2355 	__le32 Type;
2356 	__le64 DevMajor;
2357 	__le64 DevMinor;
2358 	__le64 UniqueId;
2359 	__le64 Permissions;
2360 	__le64 Nlinks;
2361 } __attribute__((packed)) FILE_UNIX_BASIC_INFO;	/* level 0x200 QPathInfo */
2362 
2363 typedef struct {
2364 	char LinkDest[1];
2365 } __attribute__((packed)) FILE_UNIX_LINK_INFO;	/* level 0x201 QPathInfo */
2366 
2367 /* The following three structures are needed only for
2368 	setting time to NT4 and some older servers via
2369 	the primitive DOS time format */
2370 typedef struct {
2371 	__u16 Day:5;
2372 	__u16 Month:4;
2373 	__u16 Year:7;
2374 } __attribute__((packed)) SMB_DATE;
2375 
2376 typedef struct {
2377 	__u16 TwoSeconds:5;
2378 	__u16 Minutes:6;
2379 	__u16 Hours:5;
2380 } __attribute__((packed)) SMB_TIME;
2381 
2382 typedef struct {
2383 	__le16 CreationDate; /* SMB Date see above */
2384 	__le16 CreationTime; /* SMB Time */
2385 	__le16 LastAccessDate;
2386 	__le16 LastAccessTime;
2387 	__le16 LastWriteDate;
2388 	__le16 LastWriteTime;
2389 	__le32 DataSize; /* File Size (EOF) */
2390 	__le32 AllocationSize;
2391 	__le16 Attributes; /* verify not u32 */
2392 	__le32 EASize;
2393 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2394 
2395 typedef struct {
2396 	__le64 CreationTime;
2397 	__le64 LastAccessTime;
2398 	__le64 LastWriteTime;
2399 	__le64 ChangeTime;
2400 	__le32 Attributes;
2401 	__u32 Pad;
2402 } __attribute__((packed)) FILE_BASIC_INFO;	/* size info, level 0x101 */
2403 
2404 struct file_allocation_info {
2405 	__le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2406 } __attribute__((packed));	/* size used on disk, for level 0x103 for set,
2407 				   0x105 for query */
2408 
2409 struct file_end_of_file_info {
2410 	__le64 FileSize;		/* offset to end of file */
2411 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2412 
2413 struct file_alt_name_info {
2414 	__u8   alt_name[1];
2415 } __attribute__((packed));      /* level 0x0108 */
2416 
2417 struct file_stream_info {
2418 	__le32 number_of_streams;  /* BB check sizes and verify location */
2419 	/* followed by info on streams themselves
2420 		u64 size;
2421 		u64 allocation_size
2422 		stream info */
2423 };      /* level 0x109 */
2424 
2425 struct file_compression_info {
2426 	__le64 compressed_size;
2427 	__le16 format;
2428 	__u8   unit_shift;
2429 	__u8   ch_shift;
2430 	__u8   cl_shift;
2431 	__u8   pad[3];
2432 } __attribute__((packed));      /* level 0x10b */
2433 
2434 /* POSIX ACL set/query path info structures */
2435 #define CIFS_ACL_VERSION 1
2436 struct cifs_posix_ace { /* access control entry (ACE) */
2437 	__u8  cifs_e_tag;
2438 	__u8  cifs_e_perm;
2439 	__le64 cifs_uid; /* or gid */
2440 } __attribute__((packed));
2441 
2442 struct cifs_posix_acl { /* access conrol list  (ACL) */
2443 	__le16	version;
2444 	__le16	access_entry_count;  /* access ACL - count of entries */
2445 	__le16	default_entry_count; /* default ACL - count of entries */
2446 	struct cifs_posix_ace ace_array[0];
2447 	/* followed by
2448 	struct cifs_posix_ace default_ace_arraay[] */
2449 } __attribute__((packed));  /* level 0x204 */
2450 
2451 /* types of access control entries already defined in posix_acl.h */
2452 /* #define CIFS_POSIX_ACL_USER_OBJ	 0x01
2453 #define CIFS_POSIX_ACL_USER      0x02
2454 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2455 #define CIFS_POSIX_ACL_GROUP     0x08
2456 #define CIFS_POSIX_ACL_MASK      0x10
2457 #define CIFS_POSIX_ACL_OTHER     0x20 */
2458 
2459 /* types of perms */
2460 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2461 #define CIFS_POSIX_ACL_WRITE     0x02
2462 #define CIFS_POSIX_ACL_READ	     0x04 */
2463 
2464 /* end of POSIX ACL definitions */
2465 
2466 /* POSIX Open Flags */
2467 #define SMB_O_RDONLY 	 0x1
2468 #define SMB_O_WRONLY 	0x2
2469 #define SMB_O_RDWR 	0x4
2470 #define SMB_O_CREAT 	0x10
2471 #define SMB_O_EXCL 	0x20
2472 #define SMB_O_TRUNC 	0x40
2473 #define SMB_O_APPEND 	0x80
2474 #define SMB_O_SYNC 	0x100
2475 #define SMB_O_DIRECTORY 0x200
2476 #define SMB_O_NOFOLLOW 	0x400
2477 #define SMB_O_DIRECT 	0x800
2478 
2479 typedef struct {
2480 	__le32 OpenFlags; /* same as NT CreateX */
2481 	__le32 PosixOpenFlags;
2482 	__le64 Permissions;
2483 	__le16 Level; /* reply level requested (see QPathInfo levels) */
2484 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2485 
2486 typedef struct {
2487 	__le16 OplockFlags;
2488 	__u16 Fid;
2489 	__le32 CreateAction;
2490 	__le16 ReturnedLevel;
2491 	__le16 Pad;
2492 	/* struct following varies based on requested level */
2493 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2494 
2495 #define SMB_POSIX_UNLINK_FILE_TARGET		0
2496 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET	1
2497 
2498 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2499 	__le16 type;
2500 } __attribute__((packed));
2501 
2502 struct file_internal_info {
2503 	__le64  UniqueId; /* inode number */
2504 } __attribute__((packed));      /* level 0x3ee */
2505 
2506 struct file_mode_info {
2507 	__le32	Mode;
2508 } __attribute__((packed));      /* level 0x3f8 */
2509 
2510 struct file_attrib_tag {
2511 	__le32 Attribute;
2512 	__le32 ReparseTag;
2513 } __attribute__((packed));      /* level 0x40b */
2514 
2515 
2516 /********************************************************/
2517 /*  FindFirst/FindNext transact2 data buffer formats    */
2518 /********************************************************/
2519 
2520 typedef struct {
2521 	__le32 NextEntryOffset;
2522 	__u32 ResumeKey; /* as with FileIndex - no need to convert */
2523 	FILE_UNIX_BASIC_INFO basic;
2524 	char FileName[1];
2525 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2526 
2527 typedef struct {
2528 	__le32 NextEntryOffset;
2529 	__u32 FileIndex;
2530 	__le64 CreationTime;
2531 	__le64 LastAccessTime;
2532 	__le64 LastWriteTime;
2533 	__le64 ChangeTime;
2534 	__le64 EndOfFile;
2535 	__le64 AllocationSize;
2536 	__le32 ExtFileAttributes;
2537 	__le32 FileNameLength;
2538 	char FileName[1];
2539 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
2540 
2541 typedef struct {
2542 	__le32 NextEntryOffset;
2543 	__u32 FileIndex;
2544 	__le64 CreationTime;
2545 	__le64 LastAccessTime;
2546 	__le64 LastWriteTime;
2547 	__le64 ChangeTime;
2548 	__le64 EndOfFile;
2549 	__le64 AllocationSize;
2550 	__le32 ExtFileAttributes;
2551 	__le32 FileNameLength;
2552 	__le32 EaSize; /* length of the xattrs */
2553 	char FileName[1];
2554 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2555 
2556 typedef struct {
2557 	__le32 NextEntryOffset;
2558 	__u32 FileIndex;
2559 	__le64 CreationTime;
2560 	__le64 LastAccessTime;
2561 	__le64 LastWriteTime;
2562 	__le64 ChangeTime;
2563 	__le64 EndOfFile;
2564 	__le64 AllocationSize;
2565 	__le32 ExtFileAttributes;
2566 	__le32 FileNameLength;
2567 	__le32 EaSize; /* EA size */
2568 	__le32 Reserved;
2569 	__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2570 	char FileName[1];
2571 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2572 
2573 typedef struct {
2574 	__le32 NextEntryOffset;
2575 	__u32 FileIndex;
2576 	__le64 CreationTime;
2577 	__le64 LastAccessTime;
2578 	__le64 LastWriteTime;
2579 	__le64 ChangeTime;
2580 	__le64 EndOfFile;
2581 	__le64 AllocationSize;
2582 	__le32 ExtFileAttributes;
2583 	__le32 FileNameLength;
2584 	__le32 EaSize; /* length of the xattrs */
2585 	__u8   ShortNameLength;
2586 	__u8   Reserved;
2587 	__u8   ShortName[12];
2588 	char FileName[1];
2589 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2590 
2591 typedef struct {
2592 	__u32  ResumeKey;
2593 	__le16 CreationDate; /* SMB Date */
2594 	__le16 CreationTime; /* SMB Time */
2595 	__le16 LastAccessDate;
2596 	__le16 LastAccessTime;
2597 	__le16 LastWriteDate;
2598 	__le16 LastWriteTime;
2599 	__le32 DataSize; /* File Size (EOF) */
2600 	__le32 AllocationSize;
2601 	__le16 Attributes; /* verify not u32 */
2602 	__u8   FileNameLength;
2603 	char FileName[1];
2604 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2605 
2606 
2607 struct win_dev {
2608 	unsigned char type[8]; /* IntxCHR or IntxBLK */
2609 	__le64 major;
2610 	__le64 minor;
2611 } __attribute__((packed));
2612 
2613 struct gea {
2614 	unsigned char name_len;
2615 	char name[1];
2616 } __attribute__((packed));
2617 
2618 struct gealist {
2619 	unsigned long list_len;
2620 	struct gea list[1];
2621 } __attribute__((packed));
2622 
2623 struct fea {
2624 	unsigned char EA_flags;
2625 	__u8 name_len;
2626 	__le16 value_len;
2627 	char name[1];
2628 	/* optionally followed by value */
2629 } __attribute__((packed));
2630 /* flags for _FEA.fEA */
2631 #define FEA_NEEDEA         0x80	/* need EA bit */
2632 
2633 struct fealist {
2634 	__le32 list_len;
2635 	struct fea list[1];
2636 } __attribute__((packed));
2637 
2638 /* used to hold an arbitrary blob of data */
2639 struct data_blob {
2640 	__u8 *data;
2641 	size_t length;
2642 	void (*free) (struct data_blob *data_blob);
2643 } __attribute__((packed));
2644 
2645 
2646 #ifdef CONFIG_CIFS_POSIX
2647 /*
2648 	For better POSIX semantics from Linux client, (even better
2649 	than the existing CIFS Unix Extensions) we need updated PDUs for:
2650 
2651 	1) PosixCreateX - to set and return the mode, inode#, device info and
2652 	perhaps add a CreateDevice - to create Pipes and other special .inodes
2653 	Also note POSIX open flags
2654 	2) Close - to return the last write time to do cache across close
2655 		more safely
2656 	3) FindFirst return unique inode number - what about resume key, two
2657 	forms short (matches readdir) and full (enough info to cache inodes)
2658 	4) Mkdir - set mode
2659 
2660 	And under consideration:
2661 	5) FindClose2 (return nanosecond timestamp ??)
2662 	6) Use nanosecond timestamps throughout all time fields if
2663 	   corresponding attribute flag is set
2664 	7) sendfile - handle based copy
2665 
2666 	what about fixing 64 bit alignment
2667 
2668 	There are also various legacy SMB/CIFS requests used as is
2669 
2670 	From existing Lanman and NTLM dialects:
2671 	--------------------------------------
2672 	NEGOTIATE
2673 	SESSION_SETUP_ANDX (BB which?)
2674 	TREE_CONNECT_ANDX (BB which wct?)
2675 	TREE_DISCONNECT (BB add volume timestamp on response)
2676 	LOGOFF_ANDX
2677 	DELETE (note delete open file behavior)
2678 	DELETE_DIRECTORY
2679 	READ_AND_X
2680 	WRITE_AND_X
2681 	LOCKING_AND_X (note posix lock semantics)
2682 	RENAME (note rename across dirs and open file rename posix behaviors)
2683 	NT_RENAME (for hardlinks) Is this good enough for all features?
2684 	FIND_CLOSE2
2685 	TRANSACTION2 (18 cases)
2686 		SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2687 		(BB verify that never need to set allocation size)
2688 		SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2689 			 Unix ext?)
2690 
2691 	COPY (note support for copy across directories) - FUTURE, OPTIONAL
2692 	setting/getting OS/2 EAs - FUTURE (BB can this handle
2693 	setting Linux xattrs perfectly)         - OPTIONAL
2694 	dnotify                                 - FUTURE, OPTIONAL
2695 	quota                                   - FUTURE, OPTIONAL
2696 
2697 	Note that various requests implemented for NT interop such as
2698 		NT_TRANSACT (IOCTL) QueryReparseInfo
2699 	are unneeded to servers compliant with the CIFS POSIX extensions
2700 
2701 	From CIFS Unix Extensions:
2702 	-------------------------
2703 	T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2704 	T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2705 	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2706 	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)	BB check for missing
2707 							inode fields
2708 				Actually a need QUERY_FILE_UNIX_INFO
2709 				since has inode num
2710 				BB what about a) blksize/blkbits/blocks
2711 							  b) i_version
2712 							  c) i_rdev
2713 							  d) notify mask?
2714 							  e) generation
2715 							  f) size_seqcount
2716 	T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2717 	TRANS2_GET_DFS_REFERRAL		      - OPTIONAL but recommended
2718 	T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2719  */
2720 
2721 /* xsymlink is a symlink format (used by MacOS) that can be used
2722    to save symlink info in a regular file when
2723    mounted to operating systems that do not
2724    support the cifs Unix extensions or EAs (for xattr
2725    based symlinks).  For such a file to be recognized
2726    as containing symlink data:
2727 
2728    1) file size must be 1067,
2729    2) signature must begin file data,
2730    3) length field must be set to ASCII representation
2731 	of a number which is less than or equal to 1024,
2732    4) md5 must match that of the path data */
2733 
2734 struct xsymlink {
2735 	/* 1067 bytes */
2736 	char signature[4]; /* XSym */ /* not null terminated */
2737 	char cr0;         /* \n */
2738 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2739 	char length[4];
2740 	char cr1;         /* \n */
2741 /* md5 of valid subset of path ie path[0] through path[length-1] */
2742 	__u8 md5[32];
2743 	char cr2;        /* \n */
2744 /* if room left, then end with \n then 0x20s by convention but not required */
2745 	char path[1024];
2746 } __attribute__((packed));
2747 
2748 typedef struct file_xattr_info {
2749 	/* BB do we need another field for flags? BB */
2750 	__u32 xattr_name_len;
2751 	__u32 xattr_value_len;
2752 	char  xattr_name[0];
2753 	/* followed by xattr_value[xattr_value_len], no pad */
2754 } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2755 					      level 0x205 */
2756 
2757 /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
2758 
2759 typedef struct file_chattr_info {
2760 	__le64	mask; /* list of all possible attribute bits */
2761 	__le64	mode; /* list of actual attribute bits on this inode */
2762 } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
2763 						(chattr, chflags) level 0x206 */
2764 #endif 				/* POSIX */
2765 #endif				/* _CIFSPDU_H */
2766