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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 /*
151  * Size of the smb3 encryption/decryption keys
152  */
153 #define SMB3_ENC_DEC_KEY_SIZE (32)
154 
155 #define CIFS_CLIENT_CHALLENGE_SIZE (8)
156 #define CIFS_SERVER_CHALLENGE_SIZE (8)
157 #define CIFS_HMAC_MD5_HASH_SIZE (16)
158 #define CIFS_CPHTXT_SIZE (16)
159 #define CIFS_NTHASH_SIZE (16)
160 
161 /*
162  * Maximum user name length
163  */
164 #define CIFS_UNLEN (20)
165 
166 /*
167  * Flags on SMB open
168  */
169 #define SMBOPEN_WRITE_THROUGH 0x4000
170 #define SMBOPEN_DENY_ALL      0x0010
171 #define SMBOPEN_DENY_WRITE    0x0020
172 #define SMBOPEN_DENY_READ     0x0030
173 #define SMBOPEN_DENY_NONE     0x0040
174 #define SMBOPEN_READ          0x0000
175 #define SMBOPEN_WRITE         0x0001
176 #define SMBOPEN_READWRITE     0x0002
177 #define SMBOPEN_EXECUTE       0x0003
178 
179 #define SMBOPEN_OCREATE       0x0010
180 #define SMBOPEN_OTRUNC        0x0002
181 #define SMBOPEN_OAPPEND       0x0001
182 
183 /*
184  * SMB flag definitions
185  */
186 #define SMBFLG_EXTD_LOCK 0x01	/* server supports lock-read write-unlock smb */
187 #define SMBFLG_RCV_POSTED 0x02	/* obsolete */
188 #define SMBFLG_RSVD 0x04
189 #define SMBFLG_CASELESS 0x08	/* all pathnames treated as caseless (off
190 				implies case sensitive file handling request) */
191 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10	/* obsolete */
192 #define SMBFLG_OLD_OPLOCK 0x20	/* obsolete */
193 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40	/* obsolete */
194 #define SMBFLG_RESPONSE 0x80	/* this PDU is a response from server */
195 
196 /*
197  * SMB flag2 definitions
198  */
199 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1)	/* can send long (non-8.3)
200 						   path names in response */
201 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
202 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
203 #define SMBFLG2_COMPRESSED (8)
204 #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
205 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
206 #define SMBFLG2_REPARSE_PATH (0x400)
207 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
208 #define SMBFLG2_DFS cpu_to_le16(0x1000)
209 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
210 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
211 #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
212 
213 /*
214  * These are the file access permission bits defined in CIFS for the
215  * NTCreateAndX as well as the level 0x107
216  * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
217  * responds with the AccessFlags.
218  * The AccessFlags specifies the access permissions a caller has to the
219  * file and can have any suitable combination of the following values:
220  */
221 
222 #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
223 #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
224 #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
225 #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
226 					  /* with the file can be read        */
227 #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
228 					  /* with the file can be written     */
229 #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
230 					  /* the file using system paging I/O */
231 #define FILE_DELETE_CHILD     0x00000040
232 #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
233 					  /* file can be read                 */
234 #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
235 					  /* file can be written              */
236 #define DELETE                0x00010000  /* The file can be deleted          */
237 #define READ_CONTROL          0x00020000  /* The access control list and      */
238 					  /* ownership associated with the    */
239 					  /* file can be read                 */
240 #define WRITE_DAC             0x00040000  /* The access control list and      */
241 					  /* ownership associated with the    */
242 					  /* file can be written.             */
243 #define WRITE_OWNER           0x00080000  /* Ownership information associated */
244 					  /* with the file can be written     */
245 #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
246 					  /* synchronize with the completion  */
247 					  /* of an input/output request       */
248 #define GENERIC_ALL           0x10000000
249 #define GENERIC_EXECUTE       0x20000000
250 #define GENERIC_WRITE         0x40000000
251 #define GENERIC_READ          0x80000000
252 					 /* In summary - Relevant file       */
253 					 /* access flags from CIFS are       */
254 					 /* file_read_data, file_write_data  */
255 					 /* file_execute, file_read_attributes*/
256 					 /* write_dac, and delete.           */
257 
258 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
259 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
260 				| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
261 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
262 
263 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
264 				| FILE_READ_ATTRIBUTES \
265 				| FILE_WRITE_ATTRIBUTES \
266 				| DELETE | READ_CONTROL | WRITE_DAC \
267 				| WRITE_OWNER | SYNCHRONIZE)
268 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
269 				| FILE_READ_EA | FILE_WRITE_EA \
270 				| FILE_DELETE_CHILD | FILE_READ_ATTRIBUTES \
271 				| FILE_WRITE_ATTRIBUTES \
272 				| DELETE | READ_CONTROL | WRITE_DAC \
273 				| WRITE_OWNER | SYNCHRONIZE)
274 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
275 				| FILE_READ_ATTRIBUTES \
276 				| FILE_WRITE_ATTRIBUTES \
277 				| DELETE | READ_CONTROL | WRITE_DAC \
278 				| WRITE_OWNER | SYNCHRONIZE)
279 
280 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
281 				| READ_CONTROL | SYNCHRONIZE)
282 
283 
284 /*
285  * Invalid readdir handle
286  */
287 #define CIFS_NO_HANDLE        0xFFFF
288 
289 #define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
290 
291 /* IPC$ in ASCII */
292 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
293 
294 /* IPC$ in Unicode */
295 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
296 
297 /* Unicode Null terminate 2 bytes of 0 */
298 #define UNICODE_NULL "\x00\x00"
299 #define ASCII_NULL 0x00
300 
301 /*
302  * Server type values (returned on EnumServer API
303  */
304 #define CIFS_SV_TYPE_DC     0x00000008
305 #define CIFS_SV_TYPE_BACKDC 0x00000010
306 
307 /*
308  * Alias type flags (From EnumAlias API call
309  */
310 #define CIFS_ALIAS_TYPE_FILE 0x0001
311 #define CIFS_SHARE_TYPE_FILE 0x0000
312 
313 /*
314  * File Attribute flags
315  */
316 #define ATTR_READONLY  0x0001
317 #define ATTR_HIDDEN    0x0002
318 #define ATTR_SYSTEM    0x0004
319 #define ATTR_VOLUME    0x0008
320 #define ATTR_DIRECTORY 0x0010
321 #define ATTR_ARCHIVE   0x0020
322 #define ATTR_DEVICE    0x0040
323 #define ATTR_NORMAL    0x0080
324 #define ATTR_TEMPORARY 0x0100
325 #define ATTR_SPARSE    0x0200
326 #define ATTR_REPARSE   0x0400
327 #define ATTR_COMPRESSED 0x0800
328 #define ATTR_OFFLINE    0x1000	/* ie file not immediately available -
329 					on offline storage */
330 #define ATTR_NOT_CONTENT_INDEXED 0x2000
331 #define ATTR_ENCRYPTED  0x4000
332 #define ATTR_POSIX_SEMANTICS 0x01000000
333 #define ATTR_BACKUP_SEMANTICS 0x02000000
334 #define ATTR_DELETE_ON_CLOSE 0x04000000
335 #define ATTR_SEQUENTIAL_SCAN 0x08000000
336 #define ATTR_RANDOM_ACCESS   0x10000000
337 #define ATTR_NO_BUFFERING    0x20000000
338 #define ATTR_WRITE_THROUGH   0x80000000
339 
340 /* ShareAccess flags */
341 #define FILE_NO_SHARE     0x00000000
342 #define FILE_SHARE_READ   0x00000001
343 #define FILE_SHARE_WRITE  0x00000002
344 #define FILE_SHARE_DELETE 0x00000004
345 #define FILE_SHARE_ALL    0x00000007
346 
347 /* CreateDisposition flags, similar to CreateAction as well */
348 #define FILE_SUPERSEDE    0x00000000
349 #define FILE_OPEN         0x00000001
350 #define FILE_CREATE       0x00000002
351 #define FILE_OPEN_IF      0x00000003
352 #define FILE_OVERWRITE    0x00000004
353 #define FILE_OVERWRITE_IF 0x00000005
354 
355 /* CreateOptions */
356 #define CREATE_NOT_FILE		0x00000001	/* if set must not be file */
357 #define CREATE_WRITE_THROUGH	0x00000002
358 #define CREATE_SEQUENTIAL       0x00000004
359 #define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
360 #define CREATE_SYNC_ALERT       0x00000010	/* MBZ */
361 #define CREATE_ASYNC_ALERT      0x00000020	/* MBZ */
362 #define CREATE_NOT_DIR		0x00000040    /* if set must not be directory */
363 #define CREATE_TREE_CONNECTION  0x00000080	/* should be zero */
364 #define CREATE_COMPLETE_IF_OPLK 0x00000100	/* should be zero */
365 #define CREATE_NO_EA_KNOWLEDGE  0x00000200
366 #define CREATE_EIGHT_DOT_THREE  0x00000400	/* doc says this is obsolete
367 						 "open for recovery" flag should
368 						 be zero in any case */
369 #define CREATE_OPEN_FOR_RECOVERY 0x00000400
370 #define CREATE_RANDOM_ACCESS	0x00000800
371 #define CREATE_DELETE_ON_CLOSE	0x00001000
372 #define CREATE_OPEN_BY_ID       0x00002000
373 #define CREATE_OPEN_BACKUP_INTENT 0x00004000
374 #define CREATE_NO_COMPRESSION   0x00008000
375 #define CREATE_RESERVE_OPFILTER 0x00100000	/* should be zero */
376 #define OPEN_REPARSE_POINT	0x00200000
377 #define OPEN_NO_RECALL          0x00400000
378 #define OPEN_FREE_SPACE_QUERY   0x00800000	/* should be zero */
379 #define CREATE_OPTIONS_MASK     0x007FFFFF
380 #define CREATE_OPTION_READONLY	0x10000000
381 #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
382 
383 /* ImpersonationLevel flags */
384 #define SECURITY_ANONYMOUS      0
385 #define SECURITY_IDENTIFICATION 1
386 #define SECURITY_IMPERSONATION  2
387 #define SECURITY_DELEGATION     3
388 
389 /* SecurityFlags */
390 #define SECURITY_CONTEXT_TRACKING 0x01
391 #define SECURITY_EFFECTIVE_ONLY   0x02
392 
393 /*
394  * Default PID value, used in all SMBs where the PID is not important
395  */
396 #define CIFS_DFT_PID  0x1234
397 
398 /*
399  * We use the same routine for Copy and Move SMBs.  This flag is used to
400  * distinguish
401  */
402 #define CIFS_COPY_OP 1
403 #define CIFS_RENAME_OP 2
404 
405 #define GETU16(var)  (*((__u16 *)var))	/* BB check for endian issues */
406 #define GETU32(var)  (*((__u32 *)var))	/* BB check for endian issues */
407 
408 struct smb_hdr {
409 	__be32 smb_buf_length;	/* BB length is only two (rarely three) bytes,
410 		with one or two byte "type" preceding it that will be
411 		zero - we could mask the type byte off */
412 	__u8 Protocol[4];
413 	__u8 Command;
414 	union {
415 		struct {
416 			__u8 ErrorClass;
417 			__u8 Reserved;
418 			__le16 Error;
419 		} __attribute__((packed)) DosError;
420 		__le32 CifsError;
421 	} __attribute__((packed)) Status;
422 	__u8 Flags;
423 	__le16 Flags2;		/* note: le */
424 	__le16 PidHigh;
425 	union {
426 		struct {
427 			__le32 SequenceNumber;  /* le */
428 			__u32 Reserved; /* zero */
429 		} __attribute__((packed)) Sequence;
430 		__u8 SecuritySignature[8];	/* le */
431 	} __attribute__((packed)) Signature;
432 	__u8 pad[2];
433 	__u16 Tid;
434 	__le16 Pid;
435 	__u16 Uid;
436 	__le16 Mid;
437 	__u8 WordCount;
438 } __attribute__((packed));
439 
440 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
441 static inline void *
BCC(struct smb_hdr * smb)442 BCC(struct smb_hdr *smb)
443 {
444 	return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
445 }
446 
447 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
448 #define pByteArea(smb_var) (BCC(smb_var) + 2)
449 
450 /* get the unconverted ByteCount for a SMB packet and return it */
451 static inline __u16
get_bcc(struct smb_hdr * hdr)452 get_bcc(struct smb_hdr *hdr)
453 {
454 	__le16 *bc_ptr = (__le16 *)BCC(hdr);
455 
456 	return get_unaligned_le16(bc_ptr);
457 }
458 
459 /* set the ByteCount for a SMB packet in little-endian */
460 static inline void
put_bcc(__u16 count,struct smb_hdr * hdr)461 put_bcc(__u16 count, struct smb_hdr *hdr)
462 {
463 	__le16 *bc_ptr = (__le16 *)BCC(hdr);
464 
465 	put_unaligned_le16(count, bc_ptr);
466 }
467 
468 /*
469  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
470  * No longer as important, now that TCP names are more commonly used to
471  * resolve hosts.
472  */
473 #define CNLEN 15
474 
475 /*
476  * Share Name Length (SNLEN)
477  * Note:  This length was limited by the SMB used to get
478  *        the Share info.   NetShareEnum only returned 13
479  *        chars, including the null termination.
480  * This was removed because it no longer is limiting.
481  */
482 
483 /*
484  * Comment Length
485  */
486 #define MAXCOMMENTLEN 40
487 
488 /*
489  * The OS/2 maximum path name
490  */
491 #define MAX_PATHCONF 256
492 
493 /*
494  *  SMB frame definitions  (following must be packed structs)
495  *  See the SNIA CIFS Specification for details.
496  *
497  *  The Naming convention is the lower case version of the
498  *  smb command code name for the struct and this is typedef to the
499  *  uppercase version of the same name with the prefix SMB_ removed
500  *  for brevity.  Although typedefs are not commonly used for
501  *  structure definitions in the Linux kernel, their use in the
502  *  CIFS standards document, which this code is based on, may
503  *  make this one of the cases where typedefs for structures make
504  *  sense to improve readability for readers of the standards doc.
505  *  Typedefs can always be removed later if they are too distracting
506  *  and they are only used for the CIFSs PDUs themselves, not
507  *  internal cifs vfs structures
508  *
509  */
510 
511 typedef struct negotiate_req {
512 	struct smb_hdr hdr;	/* wct = 0 */
513 	__le16 ByteCount;
514 	unsigned char DialectsArray[1];
515 } __attribute__((packed)) NEGOTIATE_REQ;
516 
517 /* Dialect index is 13 for LANMAN */
518 
519 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
520 
521 typedef struct lanman_neg_rsp {
522 	struct smb_hdr hdr;	/* wct = 13 */
523 	__le16 DialectIndex;
524 	__le16 SecurityMode;
525 	__le16 MaxBufSize;
526 	__le16 MaxMpxCount;
527 	__le16 MaxNumberVcs;
528 	__le16 RawMode;
529 	__le32 SessionKey;
530 	struct {
531 		__le16 Time;
532 		__le16 Date;
533 	} __attribute__((packed)) SrvTime;
534 	__le16 ServerTimeZone;
535 	__le16 EncryptionKeyLength;
536 	__le16 Reserved;
537 	__u16  ByteCount;
538 	unsigned char EncryptionKey[1];
539 } __attribute__((packed)) LANMAN_NEG_RSP;
540 
541 #define READ_RAW_ENABLE 1
542 #define WRITE_RAW_ENABLE 2
543 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
544 #define SMB1_CLIENT_GUID_SIZE (16)
545 typedef struct negotiate_rsp {
546 	struct smb_hdr hdr;	/* wct = 17 */
547 	__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
548 	__u8 SecurityMode;
549 	__le16 MaxMpxCount;
550 	__le16 MaxNumberVcs;
551 	__le32 MaxBufferSize;
552 	__le32 MaxRawSize;
553 	__le32 SessionKey;
554 	__le32 Capabilities;	/* see below */
555 	__le32 SystemTimeLow;
556 	__le32 SystemTimeHigh;
557 	__le16 ServerTimeZone;
558 	__u8 EncryptionKeyLength;
559 	__u16 ByteCount;
560 	union {
561 		unsigned char EncryptionKey[1];	/* cap extended security off */
562 		/* followed by Domain name - if extended security is off */
563 		/* followed by 16 bytes of server GUID */
564 		/* then security blob if cap_extended_security negotiated */
565 		struct {
566 			unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
567 			unsigned char SecurityBlob[1];
568 		} __attribute__((packed)) extended_response;
569 	} __attribute__((packed)) u;
570 } __attribute__((packed)) NEGOTIATE_RSP;
571 
572 /* SecurityMode bits */
573 #define SECMODE_USER          0x01	/* off indicates share level security */
574 #define SECMODE_PW_ENCRYPT    0x02
575 #define SECMODE_SIGN_ENABLED  0x04	/* SMB security signatures enabled */
576 #define SECMODE_SIGN_REQUIRED 0x08	/* SMB security signatures required */
577 
578 /* Negotiate response Capabilities */
579 #define CAP_RAW_MODE           0x00000001
580 #define CAP_MPX_MODE           0x00000002
581 #define CAP_UNICODE            0x00000004
582 #define CAP_LARGE_FILES        0x00000008
583 #define CAP_NT_SMBS            0x00000010	/* implies CAP_NT_FIND */
584 #define CAP_RPC_REMOTE_APIS    0x00000020
585 #define CAP_STATUS32           0x00000040
586 #define CAP_LEVEL_II_OPLOCKS   0x00000080
587 #define CAP_LOCK_AND_READ      0x00000100
588 #define CAP_NT_FIND            0x00000200
589 #define CAP_DFS                0x00001000
590 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
591 #define CAP_LARGE_READ_X       0x00004000
592 #define CAP_LARGE_WRITE_X      0x00008000
593 #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
594 #define CAP_UNIX               0x00800000
595 #define CAP_COMPRESSED_DATA    0x02000000
596 #define CAP_DYNAMIC_REAUTH     0x20000000
597 #define CAP_PERSISTENT_HANDLES 0x40000000
598 #define CAP_EXTENDED_SECURITY  0x80000000
599 
600 typedef union smb_com_session_setup_andx {
601 	struct {		/* request format */
602 		struct smb_hdr hdr;	/* wct = 12 */
603 		__u8 AndXCommand;
604 		__u8 AndXReserved;
605 		__le16 AndXOffset;
606 		__le16 MaxBufferSize;
607 		__le16 MaxMpxCount;
608 		__le16 VcNumber;
609 		__u32 SessionKey;
610 		__le16 SecurityBlobLength;
611 		__u32 Reserved;
612 		__le32 Capabilities;	/* see below */
613 		__le16 ByteCount;
614 		unsigned char SecurityBlob[1];	/* followed by */
615 		/* STRING NativeOS */
616 		/* STRING NativeLanMan */
617 	} __attribute__((packed)) req;	/* NTLM request format (with
618 					extended security */
619 
620 	struct {		/* request format */
621 		struct smb_hdr hdr;	/* wct = 13 */
622 		__u8 AndXCommand;
623 		__u8 AndXReserved;
624 		__le16 AndXOffset;
625 		__le16 MaxBufferSize;
626 		__le16 MaxMpxCount;
627 		__le16 VcNumber;
628 		__u32 SessionKey;
629 		__le16 CaseInsensitivePasswordLength; /* ASCII password len */
630 		__le16 CaseSensitivePasswordLength; /* Unicode password length*/
631 		__u32 Reserved;	/* see below */
632 		__le32 Capabilities;
633 		__le16 ByteCount;
634 		unsigned char CaseInsensitivePassword[1];     /* followed by: */
635 		/* unsigned char * CaseSensitivePassword; */
636 		/* STRING AccountName */
637 		/* STRING PrimaryDomain */
638 		/* STRING NativeOS */
639 		/* STRING NativeLanMan */
640 	} __attribute__((packed)) req_no_secext; /* NTLM request format (without
641 							extended security */
642 
643 	struct {		/* default (NTLM) response format */
644 		struct smb_hdr hdr;	/* wct = 4 */
645 		__u8 AndXCommand;
646 		__u8 AndXReserved;
647 		__le16 AndXOffset;
648 		__le16 Action;	/* see below */
649 		__le16 SecurityBlobLength;
650 		__u16 ByteCount;
651 		unsigned char SecurityBlob[1];	/* followed by */
652 /*      unsigned char  * NativeOS;      */
653 /*	unsigned char  * NativeLanMan;  */
654 /*      unsigned char  * PrimaryDomain; */
655 	} __attribute__((packed)) resp;	/* NTLM response
656 					   (with or without extended sec) */
657 
658 	struct {		/* request format */
659 		struct smb_hdr hdr;	/* wct = 10 */
660 		__u8 AndXCommand;
661 		__u8 AndXReserved;
662 		__le16 AndXOffset;
663 		__le16 MaxBufferSize;
664 		__le16 MaxMpxCount;
665 		__le16 VcNumber;
666 		__u32 SessionKey;
667 		__le16 PasswordLength;
668 		__u32 Reserved; /* encrypt key len and offset */
669 		__le16 ByteCount;
670 		unsigned char AccountPassword[1];	/* followed by */
671 		/* STRING AccountName */
672 		/* STRING PrimaryDomain */
673 		/* STRING NativeOS */
674 		/* STRING NativeLanMan */
675 	} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
676 
677 	struct {		/* default (NTLM) response format */
678 		struct smb_hdr hdr;	/* wct = 3 */
679 		__u8 AndXCommand;
680 		__u8 AndXReserved;
681 		__le16 AndXOffset;
682 		__le16 Action;	/* see below */
683 		__u16 ByteCount;
684 		unsigned char NativeOS[1];	/* followed by */
685 /*	unsigned char * NativeLanMan; */
686 /*      unsigned char * PrimaryDomain; */
687 	} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
688 } __attribute__((packed)) SESSION_SETUP_ANDX;
689 
690 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
691 
692 #define NTLMSSP_SERVER_TYPE	1
693 #define NTLMSSP_DOMAIN_TYPE	2
694 #define NTLMSSP_FQ_DOMAIN_TYPE	3
695 #define NTLMSSP_DNS_DOMAIN_TYPE	4
696 #define NTLMSSP_DNS_PARENT_TYPE	5
697 
698 struct ntlmssp2_name {
699 	__le16 type;
700 	__le16 length;
701 /*	char   name[length]; */
702 } __attribute__((packed));
703 
704 struct ntlmv2_resp {
705 	union {
706 	    char ntlmv2_hash[CIFS_ENCPWD_SIZE];
707 	    struct {
708 		__u8 reserved[8];
709 		__u8 key[CIFS_SERVER_CHALLENGE_SIZE];
710 	    } __attribute__((packed)) challenge;
711 	} __attribute__((packed));
712 	__le32 blob_signature;
713 	__u32  reserved;
714 	__le64  time;
715 	__u64  client_chal; /* random */
716 	__u32  reserved2;
717 	/* array of name entries could follow ending in minimum 4 byte struct */
718 } __attribute__((packed));
719 
720 
721 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
722 
723 /* Capabilities bits (for NTLM SessSetup request) */
724 #define CAP_UNICODE            0x00000004
725 #define CAP_LARGE_FILES        0x00000008
726 #define CAP_NT_SMBS            0x00000010
727 #define CAP_STATUS32           0x00000040
728 #define CAP_LEVEL_II_OPLOCKS   0x00000080
729 #define CAP_NT_FIND            0x00000200	/* reserved should be zero
730 				(because NT_SMBs implies the same thing?) */
731 #define CAP_BULK_TRANSFER      0x20000000
732 #define CAP_EXTENDED_SECURITY  0x80000000
733 
734 /* Action bits */
735 #define GUEST_LOGIN 1
736 
737 typedef struct smb_com_tconx_req {
738 	struct smb_hdr hdr;	/* wct = 4 */
739 	__u8 AndXCommand;
740 	__u8 AndXReserved;
741 	__le16 AndXOffset;
742 	__le16 Flags;		/* see below */
743 	__le16 PasswordLength;
744 	__le16 ByteCount;
745 	unsigned char Password[1];	/* followed by */
746 /* STRING Path    *//* \\server\share name */
747 	/* STRING Service */
748 } __attribute__((packed)) TCONX_REQ;
749 
750 typedef struct smb_com_tconx_rsp {
751 	struct smb_hdr hdr;	/* wct = 3 , not extended response */
752 	__u8 AndXCommand;
753 	__u8 AndXReserved;
754 	__le16 AndXOffset;
755 	__le16 OptionalSupport;	/* see below */
756 	__u16 ByteCount;
757 	unsigned char Service[1];	/* always ASCII, not Unicode */
758 	/* STRING NativeFileSystem */
759 } __attribute__((packed)) TCONX_RSP;
760 
761 typedef struct smb_com_tconx_rsp_ext {
762 	struct smb_hdr hdr;	/* wct = 7, extended response */
763 	__u8 AndXCommand;
764 	__u8 AndXReserved;
765 	__le16 AndXOffset;
766 	__le16 OptionalSupport;	/* see below */
767 	__le32 MaximalShareAccessRights;
768 	__le32 GuestMaximalShareAccessRights;
769 	__u16 ByteCount;
770 	unsigned char Service[1];	/* always ASCII, not Unicode */
771 	/* STRING NativeFileSystem */
772 } __attribute__((packed)) TCONX_RSP_EXT;
773 
774 
775 /* tree connect Flags */
776 #define DISCONNECT_TID          0x0001
777 #define TCON_EXTENDED_SIGNATURES 0x0004
778 #define TCON_EXTENDED_SECINFO   0x0008
779 
780 /* OptionalSupport bits */
781 #define SMB_SUPPORT_SEARCH_BITS 0x0001	/* "must have" directory search bits
782 					 (exclusive searches supported) */
783 #define SMB_SHARE_IS_IN_DFS     0x0002
784 #define SMB_CSC_MASK               0x000C
785 /* CSC flags defined as follows */
786 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
787 #define SMB_CSC_CACHE_AUTO_REINT   0x0004
788 #define SMB_CSC_CACHE_VDO          0x0008
789 #define SMB_CSC_NO_CACHING         0x000C
790 #define SMB_UNIQUE_FILE_NAME    0x0010
791 #define SMB_EXTENDED_SIGNATURES 0x0020
792 
793 /* services
794  *
795  * A:       ie disk
796  * LPT1:    ie printer
797  * IPC      ie named pipe
798  * COMM
799  * ?????    ie any type
800  *
801  */
802 
803 typedef struct smb_com_echo_req {
804 	struct	smb_hdr hdr;
805 	__le16	EchoCount;
806 	__le16	ByteCount;
807 	char	Data[1];
808 } __attribute__((packed)) ECHO_REQ;
809 
810 typedef struct smb_com_echo_rsp {
811 	struct	smb_hdr hdr;
812 	__le16	SequenceNumber;
813 	__le16	ByteCount;
814 	char	Data[1];
815 } __attribute__((packed)) ECHO_RSP;
816 
817 typedef struct smb_com_logoff_andx_req {
818 	struct smb_hdr hdr;	/* wct = 2 */
819 	__u8 AndXCommand;
820 	__u8 AndXReserved;
821 	__u16 AndXOffset;
822 	__u16 ByteCount;
823 } __attribute__((packed)) LOGOFF_ANDX_REQ;
824 
825 typedef struct smb_com_logoff_andx_rsp {
826 	struct smb_hdr hdr;	/* wct = 2 */
827 	__u8 AndXCommand;
828 	__u8 AndXReserved;
829 	__u16 AndXOffset;
830 	__u16 ByteCount;
831 } __attribute__((packed)) LOGOFF_ANDX_RSP;
832 
833 typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
834 					tree_connect PDU to effect disconnect */
835 					/* tdis is probably simplest SMB PDU */
836 	struct {
837 		struct smb_hdr hdr;	/* wct = 0 */
838 		__u16 ByteCount;	/* bcc = 0 */
839 	} __attribute__((packed)) req;
840 	struct {
841 		struct smb_hdr hdr;	/* wct = 0 */
842 		__u16 ByteCount;	/* bcc = 0 */
843 	} __attribute__((packed)) resp;
844 } __attribute__((packed)) TREE_DISCONNECT;
845 
846 typedef struct smb_com_close_req {
847 	struct smb_hdr hdr;	/* wct = 3 */
848 	__u16 FileID;
849 	__u32 LastWriteTime;	/* should be zero or -1 */
850 	__u16 ByteCount;	/* 0 */
851 } __attribute__((packed)) CLOSE_REQ;
852 
853 typedef struct smb_com_close_rsp {
854 	struct smb_hdr hdr;	/* wct = 0 */
855 	__u16 ByteCount;	/* bct = 0 */
856 } __attribute__((packed)) CLOSE_RSP;
857 
858 typedef struct smb_com_flush_req {
859 	struct smb_hdr hdr;	/* wct = 1 */
860 	__u16 FileID;
861 	__u16 ByteCount;	/* 0 */
862 } __attribute__((packed)) FLUSH_REQ;
863 
864 typedef struct smb_com_findclose_req {
865 	struct smb_hdr hdr; /* wct = 1 */
866 	__u16 FileID;
867 	__u16 ByteCount;    /* 0 */
868 } __attribute__((packed)) FINDCLOSE_REQ;
869 
870 /* OpenFlags */
871 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
872 #define REQ_OPLOCK         0x00000002
873 #define REQ_BATCHOPLOCK    0x00000004
874 #define REQ_OPENDIRONLY    0x00000008
875 #define REQ_EXTENDED_INFO  0x00000010
876 
877 /* File type */
878 #define DISK_TYPE		0x0000
879 #define BYTE_PIPE_TYPE		0x0001
880 #define MESSAGE_PIPE_TYPE	0x0002
881 #define PRINTER_TYPE		0x0003
882 #define COMM_DEV_TYPE		0x0004
883 #define UNKNOWN_TYPE		0xFFFF
884 
885 /* Device Type or File Status Flags */
886 #define NO_EAS			0x0001
887 #define NO_SUBSTREAMS		0x0002
888 #define NO_REPARSETAG		0x0004
889 /* following flags can apply if pipe */
890 #define ICOUNT_MASK		0x00FF
891 #define PIPE_READ_MODE		0x0100
892 #define NAMED_PIPE_TYPE		0x0400
893 #define PIPE_END_POINT		0x4000
894 #define BLOCKING_NAMED_PIPE	0x8000
895 
896 typedef struct smb_com_open_req {	/* also handles create */
897 	struct smb_hdr hdr;	/* wct = 24 */
898 	__u8 AndXCommand;
899 	__u8 AndXReserved;
900 	__le16 AndXOffset;
901 	__u8 Reserved;		/* Must Be Zero */
902 	__le16 NameLength;
903 	__le32 OpenFlags;
904 	__u32  RootDirectoryFid;
905 	__le32 DesiredAccess;
906 	__le64 AllocationSize;
907 	__le32 FileAttributes;
908 	__le32 ShareAccess;
909 	__le32 CreateDisposition;
910 	__le32 CreateOptions;
911 	__le32 ImpersonationLevel;
912 	__u8 SecurityFlags;
913 	__le16 ByteCount;
914 	char fileName[1];
915 } __attribute__((packed)) OPEN_REQ;
916 
917 /* open response: oplock levels */
918 #define OPLOCK_NONE  	 0
919 #define OPLOCK_EXCLUSIVE 1
920 #define OPLOCK_BATCH	 2
921 #define OPLOCK_READ	 3  /* level 2 oplock */
922 
923 /* open response for CreateAction shifted left */
924 #define CIFS_CREATE_ACTION 0x20000 /* file created */
925 
926 typedef struct smb_com_open_rsp {
927 	struct smb_hdr hdr;	/* wct = 34 BB */
928 	__u8 AndXCommand;
929 	__u8 AndXReserved;
930 	__le16 AndXOffset;
931 	__u8 OplockLevel;
932 	__u16 Fid;
933 	__le32 CreateAction;
934 	__le64 CreationTime;
935 	__le64 LastAccessTime;
936 	__le64 LastWriteTime;
937 	__le64 ChangeTime;
938 	__le32 FileAttributes;
939 	__le64 AllocationSize;
940 	__le64 EndOfFile;
941 	__le16 FileType;
942 	__le16 DeviceState;
943 	__u8 DirectoryFlag;
944 	__u16 ByteCount;	/* bct = 0 */
945 } __attribute__((packed)) OPEN_RSP;
946 
947 typedef struct smb_com_open_rsp_ext {
948 	struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
949 	__u8 AndXCommand;
950 	__u8 AndXReserved;
951 	__le16 AndXOffset;
952 	__u8 OplockLevel;
953 	__u16 Fid;
954 	__le32 CreateAction;
955 	__le64 CreationTime;
956 	__le64 LastAccessTime;
957 	__le64 LastWriteTime;
958 	__le64 ChangeTime;
959 	__le32 FileAttributes;
960 	__le64 AllocationSize;
961 	__le64 EndOfFile;
962 	__le16 FileType;
963 	__le16 DeviceState;
964 	__u8 DirectoryFlag;
965 	__u8 VolumeGUID[16];
966 	__u64 FileId; /* note no endian conversion - is opaque UniqueID */
967 	__le32 MaximalAccessRights;
968 	__le32 GuestMaximalAccessRights;
969 	__u16 ByteCount;        /* bct = 0 */
970 } __attribute__((packed)) OPEN_RSP_EXT;
971 
972 
973 /* format of legacy open request */
974 typedef struct smb_com_openx_req {
975 	struct smb_hdr	hdr;	/* wct = 15 */
976 	__u8 AndXCommand;
977 	__u8 AndXReserved;
978 	__le16 AndXOffset;
979 	__le16 OpenFlags;
980 	__le16 Mode;
981 	__le16 Sattr; /* search attributes */
982 	__le16 FileAttributes;  /* dos attrs */
983 	__le32 CreateTime; /* os2 format */
984 	__le16 OpenFunction;
985 	__le32 EndOfFile;
986 	__le32 Timeout;
987 	__le32 Reserved;
988 	__le16  ByteCount;  /* file name follows */
989 	char   fileName[1];
990 } __attribute__((packed)) OPENX_REQ;
991 
992 typedef struct smb_com_openx_rsp {
993 	struct smb_hdr	hdr;	/* wct = 15 */
994 	__u8 AndXCommand;
995 	__u8 AndXReserved;
996 	__le16 AndXOffset;
997 	__u16  Fid;
998 	__le16 FileAttributes;
999 	__le32 LastWriteTime; /* os2 format */
1000 	__le32 EndOfFile;
1001 	__le16 Access;
1002 	__le16 FileType;
1003 	__le16 IPCState;
1004 	__le16 Action;
1005 	__u32  FileId;
1006 	__u16  Reserved;
1007 	__u16  ByteCount;
1008 } __attribute__((packed)) OPENX_RSP;
1009 
1010 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
1011 
1012 /* Legacy write request for older servers */
1013 typedef struct smb_com_writex_req {
1014 	struct smb_hdr hdr;     /* wct = 12 */
1015 	__u8 AndXCommand;
1016 	__u8 AndXReserved;
1017 	__le16 AndXOffset;
1018 	__u16 Fid;
1019 	__le32 OffsetLow;
1020 	__u32 Reserved; /* Timeout */
1021 	__le16 WriteMode; /* 1 = write through */
1022 	__le16 Remaining;
1023 	__le16 Reserved2;
1024 	__le16 DataLengthLow;
1025 	__le16 DataOffset;
1026 	__le16 ByteCount;
1027 	__u8 Pad;		/* BB check for whether padded to DWORD
1028 				   boundary and optimum performance here */
1029 	char Data[];
1030 } __attribute__((packed)) WRITEX_REQ;
1031 
1032 typedef struct smb_com_write_req {
1033 	struct smb_hdr hdr;	/* wct = 14 */
1034 	__u8 AndXCommand;
1035 	__u8 AndXReserved;
1036 	__le16 AndXOffset;
1037 	__u16 Fid;
1038 	__le32 OffsetLow;
1039 	__u32 Reserved;
1040 	__le16 WriteMode;
1041 	__le16 Remaining;
1042 	__le16 DataLengthHigh;
1043 	__le16 DataLengthLow;
1044 	__le16 DataOffset;
1045 	__le32 OffsetHigh;
1046 	__le16 ByteCount;
1047 	__u8 Pad;		/* BB check for whether padded to DWORD
1048 				   boundary and optimum performance here */
1049 	char Data[];
1050 } __attribute__((packed)) WRITE_REQ;
1051 
1052 typedef struct smb_com_write_rsp {
1053 	struct smb_hdr hdr;	/* wct = 6 */
1054 	__u8 AndXCommand;
1055 	__u8 AndXReserved;
1056 	__le16 AndXOffset;
1057 	__le16 Count;
1058 	__le16 Remaining;
1059 	__le16 CountHigh;
1060 	__u16  Reserved;
1061 	__u16 ByteCount;
1062 } __attribute__((packed)) WRITE_RSP;
1063 
1064 /* legacy read request for older servers */
1065 typedef struct smb_com_readx_req {
1066 	struct smb_hdr hdr;	/* wct = 10 */
1067 	__u8 AndXCommand;
1068 	__u8 AndXReserved;
1069 	__le16 AndXOffset;
1070 	__u16 Fid;
1071 	__le32 OffsetLow;
1072 	__le16 MaxCount;
1073 	__le16 MinCount;	/* obsolete */
1074 	__le32 Reserved;
1075 	__le16 Remaining;
1076 	__le16 ByteCount;
1077 } __attribute__((packed)) READX_REQ;
1078 
1079 typedef struct smb_com_read_req {
1080 	struct smb_hdr hdr;	/* wct = 12 */
1081 	__u8 AndXCommand;
1082 	__u8 AndXReserved;
1083 	__le16 AndXOffset;
1084 	__u16 Fid;
1085 	__le32 OffsetLow;
1086 	__le16 MaxCount;
1087 	__le16 MinCount;		/* obsolete */
1088 	__le32 MaxCountHigh;
1089 	__le16 Remaining;
1090 	__le32 OffsetHigh;
1091 	__le16 ByteCount;
1092 } __attribute__((packed)) READ_REQ;
1093 
1094 typedef struct smb_com_read_rsp {
1095 	struct smb_hdr hdr;	/* wct = 12 */
1096 	__u8 AndXCommand;
1097 	__u8 AndXReserved;
1098 	__le16 AndXOffset;
1099 	__le16 Remaining;
1100 	__le16 DataCompactionMode;
1101 	__le16 Reserved;
1102 	__le16 DataLength;
1103 	__le16 DataOffset;
1104 	__le16 DataLengthHigh;
1105 	__u64 Reserved2;
1106 	__u16 ByteCount;
1107 	/* read response data immediately follows */
1108 } __attribute__((packed)) READ_RSP;
1109 
1110 typedef struct locking_andx_range {
1111 	__le16 Pid;
1112 	__le16 Pad;
1113 	__le32 OffsetHigh;
1114 	__le32 OffsetLow;
1115 	__le32 LengthHigh;
1116 	__le32 LengthLow;
1117 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1118 
1119 #define LOCKING_ANDX_SHARED_LOCK     0x01
1120 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1121 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1122 #define LOCKING_ANDX_CANCEL_LOCK     0x08
1123 #define LOCKING_ANDX_LARGE_FILES     0x10	/* always on for us */
1124 
1125 typedef struct smb_com_lock_req {
1126 	struct smb_hdr hdr;	/* wct = 8 */
1127 	__u8 AndXCommand;
1128 	__u8 AndXReserved;
1129 	__le16 AndXOffset;
1130 	__u16 Fid;
1131 	__u8 LockType;
1132 	__u8 OplockLevel;
1133 	__le32 Timeout;
1134 	__le16 NumberOfUnlocks;
1135 	__le16 NumberOfLocks;
1136 	__le16 ByteCount;
1137 	LOCKING_ANDX_RANGE Locks[1];
1138 } __attribute__((packed)) LOCK_REQ;
1139 
1140 /* lock type */
1141 #define CIFS_RDLCK	0
1142 #define CIFS_WRLCK	1
1143 #define CIFS_UNLCK      2
1144 typedef struct cifs_posix_lock {
1145 	__le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1146 	__le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1147 	__le32  pid;
1148 	__le64	start;
1149 	__le64	length;
1150 	/* BB what about additional owner info to identify network client */
1151 } __attribute__((packed)) CIFS_POSIX_LOCK;
1152 
1153 typedef struct smb_com_lock_rsp {
1154 	struct smb_hdr hdr;	/* wct = 2 */
1155 	__u8 AndXCommand;
1156 	__u8 AndXReserved;
1157 	__le16 AndXOffset;
1158 	__u16 ByteCount;
1159 } __attribute__((packed)) LOCK_RSP;
1160 
1161 typedef struct smb_com_rename_req {
1162 	struct smb_hdr hdr;	/* wct = 1 */
1163 	__le16 SearchAttributes;	/* target file attributes */
1164 	__le16 ByteCount;
1165 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1166 	unsigned char OldFileName[1];
1167 	/* followed by __u8 BufferFormat2 */
1168 	/* followed by NewFileName */
1169 } __attribute__((packed)) RENAME_REQ;
1170 
1171 	/* copy request flags */
1172 #define COPY_MUST_BE_FILE      0x0001
1173 #define COPY_MUST_BE_DIR       0x0002
1174 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1175 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1176 #define COPY_VERIFY_WRITES     0x0010
1177 #define COPY_TREE              0x0020
1178 
1179 typedef struct smb_com_copy_req {
1180 	struct smb_hdr hdr;	/* wct = 3 */
1181 	__u16 Tid2;
1182 	__le16 OpenFunction;
1183 	__le16 Flags;
1184 	__le16 ByteCount;
1185 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1186 	unsigned char OldFileName[1];
1187 	/* followed by __u8 BufferFormat2 */
1188 	/* followed by NewFileName string */
1189 } __attribute__((packed)) COPY_REQ;
1190 
1191 typedef struct smb_com_copy_rsp {
1192 	struct smb_hdr hdr;     /* wct = 1 */
1193 	__le16 CopyCount;    /* number of files copied */
1194 	__u16 ByteCount;    /* may be zero */
1195 	__u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1196 	unsigned char ErrorFileName[1]; /* only present if error in copy */
1197 } __attribute__((packed)) COPY_RSP;
1198 
1199 #define CREATE_HARD_LINK		0x103
1200 #define MOVEFILE_COPY_ALLOWED		0x0002
1201 #define MOVEFILE_REPLACE_EXISTING	0x0001
1202 
1203 typedef struct smb_com_nt_rename_req {	/* A5 - also used for create hardlink */
1204 	struct smb_hdr hdr;	/* wct = 4 */
1205 	__le16 SearchAttributes;	/* target file attributes */
1206 	__le16 Flags;		/* spec says Information Level */
1207 	__le32 ClusterCount;
1208 	__le16 ByteCount;
1209 	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1210 	unsigned char OldFileName[1];
1211 	/* followed by __u8 BufferFormat2 */
1212 	/* followed by NewFileName */
1213 } __attribute__((packed)) NT_RENAME_REQ;
1214 
1215 typedef struct smb_com_rename_rsp {
1216 	struct smb_hdr hdr;	/* wct = 0 */
1217 	__u16 ByteCount;	/* bct = 0 */
1218 } __attribute__((packed)) RENAME_RSP;
1219 
1220 typedef struct smb_com_delete_file_req {
1221 	struct smb_hdr hdr;	/* wct = 1 */
1222 	__le16 SearchAttributes;
1223 	__le16 ByteCount;
1224 	__u8 BufferFormat;	/* 4 = ASCII */
1225 	unsigned char fileName[1];
1226 } __attribute__((packed)) DELETE_FILE_REQ;
1227 
1228 typedef struct smb_com_delete_file_rsp {
1229 	struct smb_hdr hdr;	/* wct = 0 */
1230 	__u16 ByteCount;	/* bct = 0 */
1231 } __attribute__((packed)) DELETE_FILE_RSP;
1232 
1233 typedef struct smb_com_delete_directory_req {
1234 	struct smb_hdr hdr;	/* wct = 0 */
1235 	__le16 ByteCount;
1236 	__u8 BufferFormat;	/* 4 = ASCII */
1237 	unsigned char DirName[1];
1238 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1239 
1240 typedef struct smb_com_delete_directory_rsp {
1241 	struct smb_hdr hdr;	/* wct = 0 */
1242 	__u16 ByteCount;	/* bct = 0 */
1243 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1244 
1245 typedef struct smb_com_create_directory_req {
1246 	struct smb_hdr hdr;	/* wct = 0 */
1247 	__le16 ByteCount;
1248 	__u8 BufferFormat;	/* 4 = ASCII */
1249 	unsigned char DirName[1];
1250 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1251 
1252 typedef struct smb_com_create_directory_rsp {
1253 	struct smb_hdr hdr;	/* wct = 0 */
1254 	__u16 ByteCount;	/* bct = 0 */
1255 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1256 
1257 typedef struct smb_com_query_information_req {
1258 	struct smb_hdr hdr;     /* wct = 0 */
1259 	__le16 ByteCount;	/* 1 + namelen + 1 */
1260 	__u8 BufferFormat;      /* 4 = ASCII */
1261 	unsigned char FileName[1];
1262 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1263 
1264 typedef struct smb_com_query_information_rsp {
1265 	struct smb_hdr hdr;     /* wct = 10 */
1266 	__le16 attr;
1267 	__le32  last_write_time;
1268 	__le32 size;
1269 	__u16  reserved[5];
1270 	__le16 ByteCount;	/* bcc = 0 */
1271 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1272 
1273 typedef struct smb_com_setattr_req {
1274 	struct smb_hdr hdr; /* wct = 8 */
1275 	__le16 attr;
1276 	__le16 time_low;
1277 	__le16 time_high;
1278 	__le16 reserved[5]; /* must be zero */
1279 	__u16  ByteCount;
1280 	__u8   BufferFormat; /* 4 = ASCII */
1281 	unsigned char fileName[1];
1282 } __attribute__((packed)) SETATTR_REQ;
1283 
1284 typedef struct smb_com_setattr_rsp {
1285 	struct smb_hdr hdr;     /* wct = 0 */
1286 	__u16 ByteCount;        /* bct = 0 */
1287 } __attribute__((packed)) SETATTR_RSP;
1288 
1289 /* empty wct response to setattr */
1290 
1291 /*******************************************************/
1292 /* NT Transact structure definitions follow            */
1293 /* Currently only ioctl, acl (get security descriptor) */
1294 /* and notify are implemented                          */
1295 /*******************************************************/
1296 typedef struct smb_com_ntransact_req {
1297 	struct smb_hdr hdr; /* wct >= 19 */
1298 	__u8 MaxSetupCount;
1299 	__u16 Reserved;
1300 	__le32 TotalParameterCount;
1301 	__le32 TotalDataCount;
1302 	__le32 MaxParameterCount;
1303 	__le32 MaxDataCount;
1304 	__le32 ParameterCount;
1305 	__le32 ParameterOffset;
1306 	__le32 DataCount;
1307 	__le32 DataOffset;
1308 	__u8 SetupCount; /* four setup words follow subcommand */
1309 	/* SNIA spec incorrectly included spurious pad here */
1310 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1311 	/* SetupCount words follow then */
1312 	__le16 ByteCount;
1313 	__u8 Pad[3];
1314 	__u8 Parms[];
1315 } __attribute__((packed)) NTRANSACT_REQ;
1316 
1317 typedef struct smb_com_ntransact_rsp {
1318 	struct smb_hdr hdr;     /* wct = 18 */
1319 	__u8 Reserved[3];
1320 	__le32 TotalParameterCount;
1321 	__le32 TotalDataCount;
1322 	__le32 ParameterCount;
1323 	__le32 ParameterOffset;
1324 	__le32 ParameterDisplacement;
1325 	__le32 DataCount;
1326 	__le32 DataOffset;
1327 	__le32 DataDisplacement;
1328 	__u8 SetupCount;   /* 0 */
1329 	__u16 ByteCount;
1330 	/* __u8 Pad[3]; */
1331 	/* parms and data follow */
1332 } __attribute__((packed)) NTRANSACT_RSP;
1333 
1334 /* See MS-SMB 2.2.7.2.1.1 */
1335 struct srv_copychunk {
1336 	__le64 SourceOffset;
1337 	__le64 DestinationOffset;
1338 	__le32 CopyLength;
1339 	__u32  Reserved;
1340 } __packed;
1341 
1342 typedef struct smb_com_transaction_ioctl_req {
1343 	struct smb_hdr hdr;	/* wct = 23 */
1344 	__u8 MaxSetupCount;
1345 	__u16 Reserved;
1346 	__le32 TotalParameterCount;
1347 	__le32 TotalDataCount;
1348 	__le32 MaxParameterCount;
1349 	__le32 MaxDataCount;
1350 	__le32 ParameterCount;
1351 	__le32 ParameterOffset;
1352 	__le32 DataCount;
1353 	__le32 DataOffset;
1354 	__u8 SetupCount; /* four setup words follow subcommand */
1355 	/* SNIA spec incorrectly included spurious pad here */
1356 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1357 	__le32 FunctionCode;
1358 	__u16 Fid;
1359 	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1360 	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1361 	__le16 ByteCount;
1362 	__u8 Pad[3];
1363 	__u8 Data[1];
1364 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1365 
1366 typedef struct smb_com_transaction_compr_ioctl_req {
1367 	struct smb_hdr hdr;	/* wct = 23 */
1368 	__u8 MaxSetupCount;
1369 	__u16 Reserved;
1370 	__le32 TotalParameterCount;
1371 	__le32 TotalDataCount;
1372 	__le32 MaxParameterCount;
1373 	__le32 MaxDataCount;
1374 	__le32 ParameterCount;
1375 	__le32 ParameterOffset;
1376 	__le32 DataCount;
1377 	__le32 DataOffset;
1378 	__u8 SetupCount; /* four setup words follow subcommand */
1379 	/* SNIA spec incorrectly included spurious pad here */
1380 	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1381 	__le32 FunctionCode;
1382 	__u16 Fid;
1383 	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1384 	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1385 	__le16 ByteCount;
1386 	__u8 Pad[3];
1387 	__le16 compression_state;  /* See below for valid flags */
1388 } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
1389 
1390 /* compression state flags */
1391 #define COMPRESSION_FORMAT_NONE		0x0000
1392 #define COMPRESSION_FORMAT_DEFAULT	0x0001
1393 #define COMPRESSION_FORMAT_LZNT1	0x0002
1394 
1395 typedef struct smb_com_transaction_ioctl_rsp {
1396 	struct smb_hdr hdr;	/* wct = 19 */
1397 	__u8 Reserved[3];
1398 	__le32 TotalParameterCount;
1399 	__le32 TotalDataCount;
1400 	__le32 ParameterCount;
1401 	__le32 ParameterOffset;
1402 	__le32 ParameterDisplacement;
1403 	__le32 DataCount;
1404 	__le32 DataOffset;
1405 	__le32 DataDisplacement;
1406 	__u8 SetupCount;	/* 1 */
1407 	__le16 ReturnedDataLen;
1408 	__u16 ByteCount;
1409 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1410 
1411 #define CIFS_ACL_OWNER 1
1412 #define CIFS_ACL_GROUP 2
1413 #define CIFS_ACL_DACL  4
1414 #define CIFS_ACL_SACL  8
1415 
1416 typedef struct smb_com_transaction_qsec_req {
1417 	struct smb_hdr hdr;     /* wct = 19 */
1418 	__u8 MaxSetupCount;
1419 	__u16 Reserved;
1420 	__le32 TotalParameterCount;
1421 	__le32 TotalDataCount;
1422 	__le32 MaxParameterCount;
1423 	__le32 MaxDataCount;
1424 	__le32 ParameterCount;
1425 	__le32 ParameterOffset;
1426 	__le32 DataCount;
1427 	__le32 DataOffset;
1428 	__u8 SetupCount; /* no setup words follow subcommand */
1429 	/* SNIA spec incorrectly included spurious pad here */
1430 	__le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1431 	__le16 ByteCount; /* bcc = 3 + 8 */
1432 	__u8 Pad[3];
1433 	__u16 Fid;
1434 	__u16 Reserved2;
1435 	__le32 AclFlags;
1436 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1437 
1438 
1439 typedef struct smb_com_transaction_ssec_req {
1440 	struct smb_hdr hdr;     /* wct = 19 */
1441 	__u8 MaxSetupCount;
1442 	__u16 Reserved;
1443 	__le32 TotalParameterCount;
1444 	__le32 TotalDataCount;
1445 	__le32 MaxParameterCount;
1446 	__le32 MaxDataCount;
1447 	__le32 ParameterCount;
1448 	__le32 ParameterOffset;
1449 	__le32 DataCount;
1450 	__le32 DataOffset;
1451 	__u8 SetupCount; /* no setup words follow subcommand */
1452 	/* SNIA spec incorrectly included spurious pad here */
1453 	__le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1454 	__le16 ByteCount; /* bcc = 3 + 8 */
1455 	__u8 Pad[3];
1456 	__u16 Fid;
1457 	__u16 Reserved2;
1458 	__le32 AclFlags;
1459 } __attribute__((packed)) SET_SEC_DESC_REQ;
1460 
1461 typedef struct smb_com_transaction_change_notify_req {
1462 	struct smb_hdr hdr;     /* wct = 23 */
1463 	__u8 MaxSetupCount;
1464 	__u16 Reserved;
1465 	__le32 TotalParameterCount;
1466 	__le32 TotalDataCount;
1467 	__le32 MaxParameterCount;
1468 	__le32 MaxDataCount;
1469 	__le32 ParameterCount;
1470 	__le32 ParameterOffset;
1471 	__le32 DataCount;
1472 	__le32 DataOffset;
1473 	__u8 SetupCount; /* four setup words follow subcommand */
1474 	/* SNIA spec incorrectly included spurious pad here */
1475 	__le16 SubCommand;/* 4 = Change Notify */
1476 	__le32 CompletionFilter;  /* operation to monitor */
1477 	__u16 Fid;
1478 	__u8 WatchTree;  /* 1 = Monitor subdirectories */
1479 	__u8 Reserved2;
1480 	__le16 ByteCount;
1481 /* 	__u8 Pad[3];*/
1482 /*	__u8 Data[1];*/
1483 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1484 
1485 /* BB eventually change to use generic ntransact rsp struct
1486       and validation routine */
1487 typedef struct smb_com_transaction_change_notify_rsp {
1488 	struct smb_hdr hdr;	/* wct = 18 */
1489 	__u8 Reserved[3];
1490 	__le32 TotalParameterCount;
1491 	__le32 TotalDataCount;
1492 	__le32 ParameterCount;
1493 	__le32 ParameterOffset;
1494 	__le32 ParameterDisplacement;
1495 	__le32 DataCount;
1496 	__le32 DataOffset;
1497 	__le32 DataDisplacement;
1498 	__u8 SetupCount;   /* 0 */
1499 	__u16 ByteCount;
1500 	/* __u8 Pad[3]; */
1501 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1502 /* Completion Filter flags for Notify */
1503 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1504 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1505 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1506 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1507 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1508 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1509 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1510 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1511 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1512 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1513 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1514 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1515 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1516 
1517 #define FILE_ACTION_ADDED		0x00000001
1518 #define FILE_ACTION_REMOVED		0x00000002
1519 #define FILE_ACTION_MODIFIED		0x00000003
1520 #define FILE_ACTION_RENAMED_OLD_NAME	0x00000004
1521 #define FILE_ACTION_RENAMED_NEW_NAME	0x00000005
1522 #define FILE_ACTION_ADDED_STREAM	0x00000006
1523 #define FILE_ACTION_REMOVED_STREAM	0x00000007
1524 #define FILE_ACTION_MODIFIED_STREAM	0x00000008
1525 
1526 /* response contains array of the following structures */
1527 struct file_notify_information {
1528 	__le32 NextEntryOffset;
1529 	__le32 Action;
1530 	__le32 FileNameLength;
1531 	__u8  FileName[];
1532 } __attribute__((packed));
1533 
1534 /* For IO_REPARSE_TAG_SYMLINK */
1535 struct reparse_symlink_data {
1536 	__le32	ReparseTag;
1537 	__le16	ReparseDataLength;
1538 	__u16	Reserved;
1539 	__le16	SubstituteNameOffset;
1540 	__le16	SubstituteNameLength;
1541 	__le16	PrintNameOffset;
1542 	__le16	PrintNameLength;
1543 	__le32	Flags;
1544 	char	PathBuffer[];
1545 } __attribute__((packed));
1546 
1547 /* Flag above */
1548 #define SYMLINK_FLAG_RELATIVE 0x00000001
1549 
1550 /* For IO_REPARSE_TAG_NFS */
1551 #define NFS_SPECFILE_LNK	0x00000000014B4E4C
1552 #define NFS_SPECFILE_CHR	0x0000000000524843
1553 #define NFS_SPECFILE_BLK	0x00000000004B4C42
1554 #define NFS_SPECFILE_FIFO	0x000000004F464946
1555 #define NFS_SPECFILE_SOCK	0x000000004B434F53
1556 struct reparse_posix_data {
1557 	__le32	ReparseTag;
1558 	__le16	ReparseDataLength;
1559 	__u16	Reserved;
1560 	__le64	InodeType; /* LNK, FIFO, CHR etc. */
1561 	char	PathBuffer[];
1562 } __attribute__((packed));
1563 
1564 struct cifs_quota_data {
1565 	__u32	rsrvd1;  /* 0 */
1566 	__u32	sid_size;
1567 	__u64	rsrvd2;  /* 0 */
1568 	__u64	space_used;
1569 	__u64	soft_limit;
1570 	__u64	hard_limit;
1571 	char	sid[1];  /* variable size? */
1572 } __attribute__((packed));
1573 
1574 /* quota sub commands */
1575 #define QUOTA_LIST_CONTINUE	    0
1576 #define QUOTA_LIST_START	0x100
1577 #define QUOTA_FOR_SID		0x101
1578 
1579 struct trans2_req {
1580 	/* struct smb_hdr hdr precedes. Set wct = 14+ */
1581 	__le16 TotalParameterCount;
1582 	__le16 TotalDataCount;
1583 	__le16 MaxParameterCount;
1584 	__le16 MaxDataCount;
1585 	__u8 MaxSetupCount;
1586 	__u8 Reserved;
1587 	__le16 Flags;
1588 	__le32 Timeout;
1589 	__u16 Reserved2;
1590 	__le16 ParameterCount;
1591 	__le16 ParameterOffset;
1592 	__le16 DataCount;
1593 	__le16 DataOffset;
1594 	__u8 SetupCount;
1595 	__u8 Reserved3;
1596 	__le16 SubCommand; /* 1st setup word - SetupCount words follow */
1597 	__le16 ByteCount;
1598 } __attribute__((packed));
1599 
1600 struct smb_t2_req {
1601 	struct smb_hdr hdr;
1602 	struct trans2_req t2_req;
1603 } __attribute__((packed));
1604 
1605 struct trans2_resp {
1606 	/* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1607 	__le16 TotalParameterCount;
1608 	__le16 TotalDataCount;
1609 	__u16 Reserved;
1610 	__le16 ParameterCount;
1611 	__le16 ParameterOffset;
1612 	__le16 ParameterDisplacement;
1613 	__le16 DataCount;
1614 	__le16 DataOffset;
1615 	__le16 DataDisplacement;
1616 	__u8 SetupCount;
1617 	__u8 Reserved1;
1618 	/* SetupWords[SetupCount];
1619 	__u16 ByteCount;
1620 	__u16 Reserved2;*/
1621 	/* data area follows */
1622 } __attribute__((packed));
1623 
1624 struct smb_t2_rsp {
1625 	struct smb_hdr hdr;
1626 	struct trans2_resp t2_rsp;
1627 } __attribute__((packed));
1628 
1629 /* PathInfo/FileInfo infolevels */
1630 #define SMB_INFO_STANDARD                   1
1631 #define SMB_SET_FILE_EA                     2
1632 #define SMB_QUERY_FILE_EA_SIZE              2
1633 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1634 #define SMB_INFO_QUERY_ALL_EAS              4
1635 #define SMB_INFO_IS_NAME_VALID              6
1636 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1637 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1638 #define SMB_QUERY_FILE_EA_INFO          0x103
1639 #define SMB_QUERY_FILE_NAME_INFO        0x104
1640 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1641 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1642 #define SMB_QUERY_FILE_ALL_INFO         0x107
1643 #define SMB_QUERY_ALT_NAME_INFO         0x108
1644 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1645 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1646 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1647 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1648 #define SMB_QUERY_POSIX_ACL             0x204
1649 #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1650 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1651 #define SMB_QUERY_POSIX_PERMISSION      0x207
1652 #define SMB_QUERY_POSIX_LOCK            0x208
1653 /* #define SMB_POSIX_OPEN               0x209 */
1654 /* #define SMB_POSIX_UNLINK             0x20a */
1655 #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1656 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1657 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1658 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1659 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1660 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1661 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1662 
1663 
1664 #define SMB_SET_FILE_BASIC_INFO	        0x101
1665 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1666 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1667 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1668 #define SMB_SET_FILE_UNIX_BASIC         0x200
1669 #define SMB_SET_FILE_UNIX_LINK          0x201
1670 #define SMB_SET_FILE_UNIX_HLINK         0x203
1671 #define SMB_SET_POSIX_ACL               0x204
1672 #define SMB_SET_XATTR                   0x205
1673 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1674 #define SMB_SET_POSIX_LOCK              0x208
1675 #define SMB_POSIX_OPEN                  0x209
1676 #define SMB_POSIX_UNLINK                0x20a
1677 #define SMB_SET_FILE_UNIX_INFO2         0x20b
1678 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1679 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1680 #define SMB_FILE_ALL_INFO2              0x3fa
1681 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1682 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1683 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1684 #define SMB_FILE_QUOTA_INFO             0x408
1685 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1686 #define SMB_FILE_MAXIMUM_INFO           0x40d
1687 
1688 /* Find File infolevels */
1689 #define SMB_FIND_FILE_INFO_STANDARD       0x001
1690 #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1691 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1692 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1693 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1694 #define SMB_FIND_FILE_NAMES_INFO          0x103
1695 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1696 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1697 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1698 #define SMB_FIND_FILE_UNIX                0x202
1699 #define SMB_FIND_FILE_POSIX_INFO          0x064
1700 
1701 typedef struct smb_com_transaction2_qpi_req {
1702 	struct smb_hdr hdr;	/* wct = 14+ */
1703 	__le16 TotalParameterCount;
1704 	__le16 TotalDataCount;
1705 	__le16 MaxParameterCount;
1706 	__le16 MaxDataCount;
1707 	__u8 MaxSetupCount;
1708 	__u8 Reserved;
1709 	__le16 Flags;
1710 	__le32 Timeout;
1711 	__u16 Reserved2;
1712 	__le16 ParameterCount;
1713 	__le16 ParameterOffset;
1714 	__le16 DataCount;
1715 	__le16 DataOffset;
1716 	__u8 SetupCount;
1717 	__u8 Reserved3;
1718 	__le16 SubCommand;	/* one setup word */
1719 	__le16 ByteCount;
1720 	__u8 Pad;
1721 	__le16 InformationLevel;
1722 	__u32 Reserved4;
1723 	char FileName[1];
1724 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1725 
1726 typedef struct smb_com_transaction2_qpi_rsp {
1727 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1728 	struct trans2_resp t2;
1729 	__u16 ByteCount;
1730 	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1731 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1732 
1733 typedef struct smb_com_transaction2_spi_req {
1734 	struct smb_hdr hdr;	/* wct = 15 */
1735 	__le16 TotalParameterCount;
1736 	__le16 TotalDataCount;
1737 	__le16 MaxParameterCount;
1738 	__le16 MaxDataCount;
1739 	__u8 MaxSetupCount;
1740 	__u8 Reserved;
1741 	__le16 Flags;
1742 	__le32 Timeout;
1743 	__u16 Reserved2;
1744 	__le16 ParameterCount;
1745 	__le16 ParameterOffset;
1746 	__le16 DataCount;
1747 	__le16 DataOffset;
1748 	__u8 SetupCount;
1749 	__u8 Reserved3;
1750 	__le16 SubCommand;	/* one setup word */
1751 	__le16 ByteCount;
1752 	__u8 Pad;
1753 	__u16 Pad1;
1754 	__le16 InformationLevel;
1755 	__u32 Reserved4;
1756 	char FileName[1];
1757 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1758 
1759 typedef struct smb_com_transaction2_spi_rsp {
1760 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1761 	struct trans2_resp t2;
1762 	__u16 ByteCount;
1763 	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1764 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1765 
1766 struct set_file_rename {
1767 	__le32 overwrite;   /* 1 = overwrite dest */
1768 	__u32 root_fid;   /* zero */
1769 	__le32 target_name_len;
1770 	char  target_name[];  /* Must be unicode */
1771 } __attribute__((packed));
1772 
1773 struct smb_com_transaction2_sfi_req {
1774 	struct smb_hdr hdr;	/* wct = 15 */
1775 	__le16 TotalParameterCount;
1776 	__le16 TotalDataCount;
1777 	__le16 MaxParameterCount;
1778 	__le16 MaxDataCount;
1779 	__u8 MaxSetupCount;
1780 	__u8 Reserved;
1781 	__le16 Flags;
1782 	__le32 Timeout;
1783 	__u16 Reserved2;
1784 	__le16 ParameterCount;
1785 	__le16 ParameterOffset;
1786 	__le16 DataCount;
1787 	__le16 DataOffset;
1788 	__u8 SetupCount;
1789 	__u8 Reserved3;
1790 	__le16 SubCommand;	/* one setup word */
1791 	__le16 ByteCount;
1792 	__u8 Pad;
1793 	__u16 Pad1;
1794 	__u16 Fid;
1795 	__le16 InformationLevel;
1796 	__u16 Reserved4;
1797 } __attribute__((packed));
1798 
1799 struct smb_com_transaction2_sfi_rsp {
1800 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1801 	struct trans2_resp t2;
1802 	__u16 ByteCount;
1803 	__u16 Reserved2;	/* parameter word reserved -
1804 					present for infolevels > 100 */
1805 } __attribute__((packed));
1806 
1807 struct smb_t2_qfi_req {
1808 	struct	smb_hdr hdr;
1809 	struct	trans2_req t2;
1810 	__u8	Pad;
1811 	__u16	Fid;
1812 	__le16	InformationLevel;
1813 } __attribute__((packed));
1814 
1815 struct smb_t2_qfi_rsp {
1816 	struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1817 	struct trans2_resp t2;
1818 	__u16 ByteCount;
1819 	__u16 Reserved2;        /* parameter word reserved -
1820 				   present for infolevels > 100 */
1821 } __attribute__((packed));
1822 
1823 /*
1824  * Flags on T2 FINDFIRST and FINDNEXT
1825  */
1826 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1827 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1828 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1829 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1830 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1831 
1832 /*
1833  * Size of the resume key on FINDFIRST and FINDNEXT calls
1834  */
1835 #define CIFS_SMB_RESUME_KEY_SIZE 4
1836 
1837 typedef struct smb_com_transaction2_ffirst_req {
1838 	struct smb_hdr hdr;	/* wct = 15 */
1839 	__le16 TotalParameterCount;
1840 	__le16 TotalDataCount;
1841 	__le16 MaxParameterCount;
1842 	__le16 MaxDataCount;
1843 	__u8 MaxSetupCount;
1844 	__u8 Reserved;
1845 	__le16 Flags;
1846 	__le32 Timeout;
1847 	__u16 Reserved2;
1848 	__le16 ParameterCount;
1849 	__le16 ParameterOffset;
1850 	__le16 DataCount;
1851 	__le16 DataOffset;
1852 	__u8 SetupCount;	/* one */
1853 	__u8 Reserved3;
1854 	__le16 SubCommand;	/* TRANS2_FIND_FIRST */
1855 	__le16 ByteCount;
1856 	__u8 Pad;
1857 	__le16 SearchAttributes;
1858 	__le16 SearchCount;
1859 	__le16 SearchFlags;
1860 	__le16 InformationLevel;
1861 	__le32 SearchStorageType;
1862 	char FileName[1];
1863 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1864 
1865 typedef struct smb_com_transaction2_ffirst_rsp {
1866 	struct smb_hdr hdr;	/* wct = 10 */
1867 	struct trans2_resp t2;
1868 	__u16 ByteCount;
1869 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1870 
1871 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1872 	__u16 SearchHandle;
1873 	__le16 SearchCount;
1874 	__le16 EndofSearch;
1875 	__le16 EAErrorOffset;
1876 	__le16 LastNameOffset;
1877 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1878 
1879 typedef struct smb_com_transaction2_fnext_req {
1880 	struct smb_hdr hdr;	/* wct = 15 */
1881 	__le16 TotalParameterCount;
1882 	__le16 TotalDataCount;
1883 	__le16 MaxParameterCount;
1884 	__le16 MaxDataCount;
1885 	__u8 MaxSetupCount;
1886 	__u8 Reserved;
1887 	__le16 Flags;
1888 	__le32 Timeout;
1889 	__u16 Reserved2;
1890 	__le16 ParameterCount;
1891 	__le16 ParameterOffset;
1892 	__le16 DataCount;
1893 	__le16 DataOffset;
1894 	__u8 SetupCount;	/* one */
1895 	__u8 Reserved3;
1896 	__le16 SubCommand;	/* TRANS2_FIND_NEXT */
1897 	__le16 ByteCount;
1898 	__u8 Pad;
1899 	__u16 SearchHandle;
1900 	__le16 SearchCount;
1901 	__le16 InformationLevel;
1902 	__u32 ResumeKey;
1903 	__le16 SearchFlags;
1904 	char ResumeFileName[1];
1905 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1906 
1907 typedef struct smb_com_transaction2_fnext_rsp {
1908 	struct smb_hdr hdr;	/* wct = 10 */
1909 	struct trans2_resp t2;
1910 	__u16 ByteCount;
1911 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1912 
1913 typedef struct smb_com_transaction2_fnext_rsp_parms {
1914 	__le16 SearchCount;
1915 	__le16 EndofSearch;
1916 	__le16 EAErrorOffset;
1917 	__le16 LastNameOffset;
1918 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1919 
1920 /* QFSInfo Levels */
1921 #define SMB_INFO_ALLOCATION         1
1922 #define SMB_INFO_VOLUME             2
1923 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1924 #define SMB_QUERY_FS_SIZE_INFO      0x103
1925 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1926 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1927 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1928 #define SMB_QUERY_POSIX_FS_INFO     0x201
1929 #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1930 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1931 #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1932 					    FILE_SYSTEM__UNIX_INFO to tell
1933 					    whether new NTIOCTL available
1934 					    (0xACE) for WAN friendly SMB
1935 					    operations to be carried */
1936 #define SMB_QUERY_LABEL_INFO        0x3ea
1937 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1938 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1939 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1940 
1941 typedef struct smb_com_transaction2_qfsi_req {
1942 	struct smb_hdr hdr;	/* wct = 14+ */
1943 	__le16 TotalParameterCount;
1944 	__le16 TotalDataCount;
1945 	__le16 MaxParameterCount;
1946 	__le16 MaxDataCount;
1947 	__u8 MaxSetupCount;
1948 	__u8 Reserved;
1949 	__le16 Flags;
1950 	__le32 Timeout;
1951 	__u16 Reserved2;
1952 	__le16 ParameterCount;
1953 	__le16 ParameterOffset;
1954 	__le16 DataCount;
1955 	__le16 DataOffset;
1956 	__u8 SetupCount;
1957 	__u8 Reserved3;
1958 	__le16 SubCommand;	/* one setup word */
1959 	__le16 ByteCount;
1960 	__u8 Pad;
1961 	__le16 InformationLevel;
1962 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1963 
1964 typedef struct smb_com_transaction_qfsi_rsp {
1965 	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1966 	struct trans2_resp t2;
1967 	__u16 ByteCount;
1968 	__u8 Pad;	/* may be three bytes? *//* followed by data area */
1969 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1970 
1971 typedef struct whoami_rsp_data { /* Query level 0x202 */
1972 	__u32 flags; /* 0 = Authenticated user 1 = GUEST */
1973 	__u32 mask; /* which flags bits server understands ie 0x0001 */
1974 	__u64 unix_user_id;
1975 	__u64 unix_user_gid;
1976 	__u32 number_of_supplementary_gids; /* may be zero */
1977 	__u32 number_of_sids; /* may be zero */
1978 	__u32 length_of_sid_array; /* in bytes - may be zero */
1979 	__u32 pad; /* reserved - MBZ */
1980 	/* __u64 gid_array[0]; */  /* may be empty */
1981 	/* __u8 * psid_list */  /* may be empty */
1982 } __attribute__((packed)) WHOAMI_RSP_DATA;
1983 
1984 /* SETFSInfo Levels */
1985 #define SMB_SET_CIFS_UNIX_INFO    0x200
1986 /* level 0x203 is defined above in list of QFS info levels */
1987 /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
1988 
1989 /* Level 0x200 request structure follows */
1990 typedef struct smb_com_transaction2_setfsi_req {
1991 	struct smb_hdr hdr;	/* wct = 15 */
1992 	__le16 TotalParameterCount;
1993 	__le16 TotalDataCount;
1994 	__le16 MaxParameterCount;
1995 	__le16 MaxDataCount;
1996 	__u8 MaxSetupCount;
1997 	__u8 Reserved;
1998 	__le16 Flags;
1999 	__le32 Timeout;
2000 	__u16 Reserved2;
2001 	__le16 ParameterCount;	/* 4 */
2002 	__le16 ParameterOffset;
2003 	__le16 DataCount;	/* 12 */
2004 	__le16 DataOffset;
2005 	__u8 SetupCount;	/* one */
2006 	__u8 Reserved3;
2007 	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
2008 	__le16 ByteCount;
2009 	__u8 Pad;
2010 	__u16 FileNum;		/* Parameters start. */
2011 	__le16 InformationLevel;/* Parameters end. */
2012 	__le16 ClientUnixMajor; /* Data start. */
2013 	__le16 ClientUnixMinor;
2014 	__le64 ClientUnixCap;   /* Data end */
2015 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
2016 
2017 /* level 0x203 request structure follows */
2018 typedef struct smb_com_transaction2_setfs_enc_req {
2019 	struct smb_hdr hdr;	/* wct = 15 */
2020 	__le16 TotalParameterCount;
2021 	__le16 TotalDataCount;
2022 	__le16 MaxParameterCount;
2023 	__le16 MaxDataCount;
2024 	__u8 MaxSetupCount;
2025 	__u8 Reserved;
2026 	__le16 Flags;
2027 	__le32 Timeout;
2028 	__u16 Reserved2;
2029 	__le16 ParameterCount;	/* 4 */
2030 	__le16 ParameterOffset;
2031 	__le16 DataCount;	/* 12 */
2032 	__le16 DataOffset;
2033 	__u8 SetupCount;	/* one */
2034 	__u8 Reserved3;
2035 	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
2036 	__le16 ByteCount;
2037 	__u8 Pad;
2038 	__u16  Reserved4;	/* Parameters start. */
2039 	__le16 InformationLevel;/* Parameters end. */
2040 	/* NTLMSSP Blob, Data start. */
2041 } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
2042 
2043 /* response for setfsinfo levels 0x200 and 0x203 */
2044 typedef struct smb_com_transaction2_setfsi_rsp {
2045 	struct smb_hdr hdr;	/* wct = 10 */
2046 	struct trans2_resp t2;
2047 	__u16 ByteCount;
2048 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
2049 
2050 typedef struct smb_com_transaction2_get_dfs_refer_req {
2051 	struct smb_hdr hdr;	/* wct = 15 */
2052 	__le16 TotalParameterCount;
2053 	__le16 TotalDataCount;
2054 	__le16 MaxParameterCount;
2055 	__le16 MaxDataCount;
2056 	__u8 MaxSetupCount;
2057 	__u8 Reserved;
2058 	__le16 Flags;
2059 	__le32 Timeout;
2060 	__u16 Reserved2;
2061 	__le16 ParameterCount;
2062 	__le16 ParameterOffset;
2063 	__le16 DataCount;
2064 	__le16 DataOffset;
2065 	__u8 SetupCount;
2066 	__u8 Reserved3;
2067 	__le16 SubCommand;	/* one setup word */
2068 	__le16 ByteCount;
2069 	__u8 Pad[3];		/* Win2K has sent 0x0F01 (max response length
2070 				   perhaps?) followed by one byte pad - doesn't
2071 				   seem to matter though */
2072 	__le16 MaxReferralLevel;
2073 	char RequestFileName[1];
2074 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
2075 
2076 #define DFS_VERSION cpu_to_le16(0x0003)
2077 
2078 /* DFS server target type */
2079 #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
2080 #define DFS_TYPE_ROOT 0x0001
2081 
2082 /* Referral Entry Flags */
2083 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
2084 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2085 
2086 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2087 	__le16 VersionNumber;  /* must be 3 or 4 */
2088 	__le16 Size;
2089 	__le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2090 	__le16 ReferralEntryFlags;
2091 	__le32 TimeToLive;
2092 	__le16 DfsPathOffset;
2093 	__le16 DfsAlternatePathOffset;
2094 	__le16 NetworkAddressOffset; /* offset of the link target */
2095 	__u8   ServiceSiteGuid[16];  /* MBZ, ignored */
2096 } __attribute__((packed)) REFERRAL3;
2097 
2098 struct get_dfs_referral_rsp {
2099 	__le16 PathConsumed;
2100 	__le16 NumberOfReferrals;
2101 	__le32 DFSFlags;
2102 	REFERRAL3 referrals[1];	/* array of level 3 dfs_referral structures */
2103 	/* followed by the strings pointed to by the referral structures */
2104 } __packed;
2105 
2106 typedef struct smb_com_transaction_get_dfs_refer_rsp {
2107 	struct smb_hdr hdr;	/* wct = 10 */
2108 	struct trans2_resp t2;
2109 	__u16 ByteCount;
2110 	__u8 Pad;
2111 	struct get_dfs_referral_rsp dfs_data;
2112 } __packed TRANSACTION2_GET_DFS_REFER_RSP;
2113 
2114 /* DFS Flags */
2115 #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2116 #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2117 #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2118 
2119 /*
2120  ************************************************************************
2121  * All structs for everything above the SMB PDUs themselves
2122  * (such as the T2 level specific data) go here
2123  ************************************************************************
2124  */
2125 
2126 /*
2127  * Information on a server
2128  */
2129 
2130 struct serverInfo {
2131 	char name[16];
2132 	unsigned char versionMajor;
2133 	unsigned char versionMinor;
2134 	unsigned long type;
2135 	unsigned int commentOffset;
2136 } __attribute__((packed));
2137 
2138 /*
2139  * The following structure is the format of the data returned on a NetShareEnum
2140  * with level "90" (x5A)
2141  */
2142 
2143 struct shareInfo {
2144 	char shareName[13];
2145 	char pad;
2146 	unsigned short type;
2147 	unsigned int commentOffset;
2148 } __attribute__((packed));
2149 
2150 struct aliasInfo {
2151 	char aliasName[9];
2152 	char pad;
2153 	unsigned int commentOffset;
2154 	unsigned char type[2];
2155 } __attribute__((packed));
2156 
2157 struct aliasInfo92 {
2158 	int aliasNameOffset;
2159 	int serverNameOffset;
2160 	int shareNameOffset;
2161 } __attribute__((packed));
2162 
2163 typedef struct {
2164 	__le64 TotalAllocationUnits;
2165 	__le64 FreeAllocationUnits;
2166 	__le32 SectorsPerAllocationUnit;
2167 	__le32 BytesPerSector;
2168 } __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */
2169 
2170 typedef struct {
2171 	__le32 fsid;
2172 	__le32 SectorsPerAllocationUnit;
2173 	__le32 TotalAllocationUnits;
2174 	__le32 FreeAllocationUnits;
2175 	__le16  BytesPerSector;
2176 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2177 
2178 typedef struct {
2179 	__le16 MajorVersionNumber;
2180 	__le16 MinorVersionNumber;
2181 	__le64 Capability;
2182 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2183 
2184 /* Version numbers for CIFS UNIX major and minor. */
2185 #define CIFS_UNIX_MAJOR_VERSION 1
2186 #define CIFS_UNIX_MINOR_VERSION 0
2187 
2188 /* Linux/Unix extensions capability flags */
2189 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2190 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2191 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2192 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2193 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2194 #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2195 						      calls including posix open
2196 						      and posix unlink */
2197 #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
2198 						      to 0xFFFF00 */
2199 #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2200 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2201 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2202 #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
2203 						      QFS PROXY call */
2204 #ifdef CONFIG_CIFS_POSIX
2205 /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
2206    LockingX instead of posix locking call on unix sess (and we do not expect
2207    LockingX to use different (ie Windows) semantics than posix locking on
2208    the same session (if WINE needs to do this later, we can add this cap
2209    back in later */
2210 /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2211 #define CIFS_UNIX_CAP_MASK              0x000003db
2212 #else
2213 #define CIFS_UNIX_CAP_MASK              0x00000013
2214 #endif /* CONFIG_CIFS_POSIX */
2215 
2216 
2217 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2218 
2219 typedef struct {
2220 	/* For undefined recommended transfer size return -1 in that field */
2221 	__le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2222 	__le32 BlockSize;
2223     /* The next three fields are in terms of the block size.
2224 	(above). If block size is unknown, 4096 would be a
2225 	reasonable block size for a server to report.
2226 	Note that returning the blocks/blocksavail removes need
2227 	to make a second call (to QFSInfo level 0x103 to get this info.
2228 	UserBlockAvail is typically less than or equal to BlocksAvail,
2229 	if no distinction is made return the same value in each */
2230 	__le64 TotalBlocks;
2231 	__le64 BlocksAvail;       /* bfree */
2232 	__le64 UserBlocksAvail;   /* bavail */
2233     /* For undefined Node fields or FSID return -1 */
2234 	__le64 TotalFileNodes;
2235 	__le64 FreeFileNodes;
2236 	__le64 FileSysIdentifier;   /* fsid */
2237 	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2238 	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2239 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2240 
2241 /* DeviceType Flags */
2242 #define FILE_DEVICE_CD_ROM              0x00000002
2243 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2244 #define FILE_DEVICE_DFS                 0x00000006
2245 #define FILE_DEVICE_DISK                0x00000007
2246 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2247 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2248 #define FILE_DEVICE_NAMED_PIPE          0x00000011
2249 #define FILE_DEVICE_NETWORK             0x00000012
2250 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2251 #define FILE_DEVICE_NULL                0x00000015
2252 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2253 #define FILE_DEVICE_PRINTER             0x00000018
2254 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2255 #define FILE_DEVICE_STREAMS             0x0000001e
2256 #define FILE_DEVICE_TAPE                0x0000001f
2257 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2258 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2259 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2260 
2261 /* Device Characteristics */
2262 #define FILE_REMOVABLE_MEDIA			0x00000001
2263 #define FILE_READ_ONLY_DEVICE			0x00000002
2264 #define FILE_FLOPPY_DISKETTE			0x00000004
2265 #define FILE_WRITE_ONCE_MEDIA			0x00000008
2266 #define FILE_REMOTE_DEVICE			0x00000010
2267 #define FILE_DEVICE_IS_MOUNTED			0x00000020
2268 #define FILE_VIRTUAL_VOLUME			0x00000040
2269 #define FILE_DEVICE_SECURE_OPEN			0x00000100
2270 #define FILE_CHARACTERISTIC_TS_DEVICE		0x00001000
2271 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE	0x00002000
2272 #define FILE_PORTABLE_DEVICE			0x00004000
2273 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
2274 
2275 typedef struct {
2276 	__le32 DeviceType;
2277 	__le32 DeviceCharacteristics;
2278 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2279 
2280 /* minimum includes first three fields, and empty FS Name */
2281 #define MIN_FS_ATTR_INFO_SIZE 12
2282 
2283 
2284 /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
2285 #define FILE_SUPPORTS_SPARSE_VDL	0x10000000 /* faster nonsparse extend */
2286 #define FILE_SUPPORTS_BLOCK_REFCOUNTING	0x08000000 /* allow ioctl dup extents */
2287 #define FILE_SUPPORT_INTEGRITY_STREAMS	0x04000000
2288 #define FILE_SUPPORTS_USN_JOURNAL	0x02000000
2289 #define FILE_SUPPORTS_OPEN_BY_FILE_ID	0x01000000
2290 #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
2291 #define FILE_SUPPORTS_HARD_LINKS	0x00400000
2292 #define FILE_SUPPORTS_TRANSACTIONS	0x00200000
2293 #define FILE_SEQUENTIAL_WRITE_ONCE	0x00100000
2294 #define FILE_READ_ONLY_VOLUME		0x00080000
2295 #define FILE_NAMED_STREAMS		0x00040000
2296 #define FILE_SUPPORTS_ENCRYPTION	0x00020000
2297 #define FILE_SUPPORTS_OBJECT_IDS	0x00010000
2298 #define FILE_VOLUME_IS_COMPRESSED	0x00008000
2299 #define FILE_SUPPORTS_REMOTE_STORAGE	0x00000100
2300 #define FILE_SUPPORTS_REPARSE_POINTS	0x00000080
2301 #define FILE_SUPPORTS_SPARSE_FILES	0x00000040
2302 #define FILE_VOLUME_QUOTAS		0x00000020
2303 #define FILE_FILE_COMPRESSION		0x00000010
2304 #define FILE_PERSISTENT_ACLS		0x00000008
2305 #define FILE_UNICODE_ON_DISK		0x00000004
2306 #define FILE_CASE_PRESERVED_NAMES	0x00000002
2307 #define FILE_CASE_SENSITIVE_SEARCH	0x00000001
2308 typedef struct {
2309 	__le32 Attributes;
2310 	__le32 MaxPathNameComponentLength;
2311 	__le32 FileSystemNameLen;
2312 	char FileSystemName[52]; /* do not have to save this - get subset? */
2313 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2314 
2315 /******************************************************************************/
2316 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2317 /******************************************************************************/
2318 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2319 	__le64 CreationTime;
2320 	__le64 LastAccessTime;
2321 	__le64 LastWriteTime;
2322 	__le64 ChangeTime;
2323 	__le32 Attributes;
2324 	__u32 Pad1;
2325 	__le64 AllocationSize;
2326 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2327 	__le32 NumberOfLinks;	/* hard links */
2328 	__u8 DeletePending;
2329 	__u8 Directory;
2330 	__u16 Pad2;
2331 	__le64 IndexNumber;
2332 	__le32 EASize;
2333 	__le32 AccessFlags;
2334 	__u64 IndexNumber1;
2335 	__le64 CurrentByteOffset;
2336 	__le32 Mode;
2337 	__le32 AlignmentRequirement;
2338 	__le32 FileNameLength;
2339 	char FileName[1];
2340 } __attribute__((packed)) FILE_ALL_INFO;	/* level 0x107 QPathInfo */
2341 
2342 typedef struct {
2343 	__le64 AllocationSize;
2344 	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2345 	__le32 NumberOfLinks;	/* hard links */
2346 	__u8 DeletePending;
2347 	__u8 Directory;
2348 	__u16 Pad;
2349 } __attribute__((packed)) FILE_STANDARD_INFO;	/* level 0x102 QPathInfo */
2350 
2351 
2352 /* defines for enumerating possible values of the Unix type field below */
2353 #define UNIX_FILE      0
2354 #define UNIX_DIR       1
2355 #define UNIX_SYMLINK   2
2356 #define UNIX_CHARDEV   3
2357 #define UNIX_BLOCKDEV  4
2358 #define UNIX_FIFO      5
2359 #define UNIX_SOCKET    6
2360 typedef struct {
2361 	__le64 EndOfFile;
2362 	__le64 NumOfBytes;
2363 	__le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2364 	__le64 LastAccessTime;
2365 	__le64 LastModificationTime;
2366 	__le64 Uid;
2367 	__le64 Gid;
2368 	__le32 Type;
2369 	__le64 DevMajor;
2370 	__le64 DevMinor;
2371 	__le64 UniqueId;
2372 	__le64 Permissions;
2373 	__le64 Nlinks;
2374 } __attribute__((packed)) FILE_UNIX_BASIC_INFO;	/* level 0x200 QPathInfo */
2375 
2376 typedef struct {
2377 	char LinkDest[1];
2378 } __attribute__((packed)) FILE_UNIX_LINK_INFO;	/* level 0x201 QPathInfo */
2379 
2380 /* The following three structures are needed only for
2381 	setting time to NT4 and some older servers via
2382 	the primitive DOS time format */
2383 typedef struct {
2384 	__u16 Day:5;
2385 	__u16 Month:4;
2386 	__u16 Year:7;
2387 } __attribute__((packed)) SMB_DATE;
2388 
2389 typedef struct {
2390 	__u16 TwoSeconds:5;
2391 	__u16 Minutes:6;
2392 	__u16 Hours:5;
2393 } __attribute__((packed)) SMB_TIME;
2394 
2395 typedef struct {
2396 	__le16 CreationDate; /* SMB Date see above */
2397 	__le16 CreationTime; /* SMB Time */
2398 	__le16 LastAccessDate;
2399 	__le16 LastAccessTime;
2400 	__le16 LastWriteDate;
2401 	__le16 LastWriteTime;
2402 	__le32 DataSize; /* File Size (EOF) */
2403 	__le32 AllocationSize;
2404 	__le16 Attributes; /* verify not u32 */
2405 	__le32 EASize;
2406 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2407 
2408 typedef struct {
2409 	__le64 CreationTime;
2410 	__le64 LastAccessTime;
2411 	__le64 LastWriteTime;
2412 	__le64 ChangeTime;
2413 	__le32 Attributes;
2414 	__u32 Pad;
2415 } __attribute__((packed)) FILE_BASIC_INFO;	/* size info, level 0x101 */
2416 
2417 struct file_allocation_info {
2418 	__le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2419 } __attribute__((packed));	/* size used on disk, for level 0x103 for set,
2420 				   0x105 for query */
2421 
2422 struct file_end_of_file_info {
2423 	__le64 FileSize;		/* offset to end of file */
2424 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2425 
2426 struct file_alt_name_info {
2427 	__u8   alt_name[1];
2428 } __attribute__((packed));      /* level 0x0108 */
2429 
2430 struct file_stream_info {
2431 	__le32 number_of_streams;  /* BB check sizes and verify location */
2432 	/* followed by info on streams themselves
2433 		u64 size;
2434 		u64 allocation_size
2435 		stream info */
2436 };      /* level 0x109 */
2437 
2438 struct file_compression_info {
2439 	__le64 compressed_size;
2440 	__le16 format;
2441 	__u8   unit_shift;
2442 	__u8   ch_shift;
2443 	__u8   cl_shift;
2444 	__u8   pad[3];
2445 } __attribute__((packed));      /* level 0x10b */
2446 
2447 /* POSIX ACL set/query path info structures */
2448 #define CIFS_ACL_VERSION 1
2449 struct cifs_posix_ace { /* access control entry (ACE) */
2450 	__u8  cifs_e_tag;
2451 	__u8  cifs_e_perm;
2452 	__le64 cifs_uid; /* or gid */
2453 } __attribute__((packed));
2454 
2455 struct cifs_posix_acl { /* access conrol list  (ACL) */
2456 	__le16	version;
2457 	__le16	access_entry_count;  /* access ACL - count of entries */
2458 	__le16	default_entry_count; /* default ACL - count of entries */
2459 	struct cifs_posix_ace ace_array[];
2460 	/* followed by
2461 	struct cifs_posix_ace default_ace_arraay[] */
2462 } __attribute__((packed));  /* level 0x204 */
2463 
2464 /* types of access control entries already defined in posix_acl.h */
2465 /* #define CIFS_POSIX_ACL_USER_OBJ	 0x01
2466 #define CIFS_POSIX_ACL_USER      0x02
2467 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2468 #define CIFS_POSIX_ACL_GROUP     0x08
2469 #define CIFS_POSIX_ACL_MASK      0x10
2470 #define CIFS_POSIX_ACL_OTHER     0x20 */
2471 
2472 /* types of perms */
2473 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2474 #define CIFS_POSIX_ACL_WRITE     0x02
2475 #define CIFS_POSIX_ACL_READ	     0x04 */
2476 
2477 /* end of POSIX ACL definitions */
2478 
2479 /* POSIX Open Flags */
2480 #define SMB_O_RDONLY 	 0x1
2481 #define SMB_O_WRONLY 	0x2
2482 #define SMB_O_RDWR 	0x4
2483 #define SMB_O_CREAT 	0x10
2484 #define SMB_O_EXCL 	0x20
2485 #define SMB_O_TRUNC 	0x40
2486 #define SMB_O_APPEND 	0x80
2487 #define SMB_O_SYNC 	0x100
2488 #define SMB_O_DIRECTORY 0x200
2489 #define SMB_O_NOFOLLOW 	0x400
2490 #define SMB_O_DIRECT 	0x800
2491 
2492 typedef struct {
2493 	__le32 OpenFlags; /* same as NT CreateX */
2494 	__le32 PosixOpenFlags;
2495 	__le64 Permissions;
2496 	__le16 Level; /* reply level requested (see QPathInfo levels) */
2497 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2498 
2499 typedef struct {
2500 	__le16 OplockFlags;
2501 	__u16 Fid;
2502 	__le32 CreateAction;
2503 	__le16 ReturnedLevel;
2504 	__le16 Pad;
2505 	/* struct following varies based on requested level */
2506 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2507 
2508 #define SMB_POSIX_UNLINK_FILE_TARGET		0
2509 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET	1
2510 
2511 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2512 	__le16 type;
2513 } __attribute__((packed));
2514 
2515 struct file_internal_info {
2516 	__le64  UniqueId; /* inode number */
2517 } __attribute__((packed));      /* level 0x3ee */
2518 
2519 struct file_mode_info {
2520 	__le32	Mode;
2521 } __attribute__((packed));      /* level 0x3f8 */
2522 
2523 struct file_attrib_tag {
2524 	__le32 Attribute;
2525 	__le32 ReparseTag;
2526 } __attribute__((packed));      /* level 0x40b */
2527 
2528 
2529 /********************************************************/
2530 /*  FindFirst/FindNext transact2 data buffer formats    */
2531 /********************************************************/
2532 
2533 typedef struct {
2534 	__le32 NextEntryOffset;
2535 	__u32 ResumeKey; /* as with FileIndex - no need to convert */
2536 	FILE_UNIX_BASIC_INFO basic;
2537 	char FileName[1];
2538 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2539 
2540 typedef struct {
2541 	__le32 NextEntryOffset;
2542 	__u32 FileIndex;
2543 	__le64 CreationTime;
2544 	__le64 LastAccessTime;
2545 	__le64 LastWriteTime;
2546 	__le64 ChangeTime;
2547 	__le64 EndOfFile;
2548 	__le64 AllocationSize;
2549 	__le32 ExtFileAttributes;
2550 	__le32 FileNameLength;
2551 	char FileName[1];
2552 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
2553 
2554 typedef struct {
2555 	__le32 NextEntryOffset;
2556 	__u32 FileIndex;
2557 	__le64 CreationTime;
2558 	__le64 LastAccessTime;
2559 	__le64 LastWriteTime;
2560 	__le64 ChangeTime;
2561 	__le64 EndOfFile;
2562 	__le64 AllocationSize;
2563 	__le32 ExtFileAttributes;
2564 	__le32 FileNameLength;
2565 	__le32 EaSize; /* length of the xattrs */
2566 	char FileName[1];
2567 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2568 
2569 typedef struct {
2570 	__le32 NextEntryOffset;
2571 	__u32 FileIndex;
2572 	__le64 CreationTime;
2573 	__le64 LastAccessTime;
2574 	__le64 LastWriteTime;
2575 	__le64 ChangeTime;
2576 	__le64 EndOfFile;
2577 	__le64 AllocationSize;
2578 	__le32 ExtFileAttributes;
2579 	__le32 FileNameLength;
2580 	__le32 EaSize; /* EA size */
2581 	__le32 Reserved;
2582 	__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2583 	char FileName[1];
2584 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2585 
2586 typedef struct {
2587 	__le32 NextEntryOffset;
2588 	__u32 FileIndex;
2589 	__le64 CreationTime;
2590 	__le64 LastAccessTime;
2591 	__le64 LastWriteTime;
2592 	__le64 ChangeTime;
2593 	__le64 EndOfFile;
2594 	__le64 AllocationSize;
2595 	__le32 ExtFileAttributes;
2596 	__le32 FileNameLength;
2597 	__le32 EaSize; /* length of the xattrs */
2598 	__u8   ShortNameLength;
2599 	__u8   Reserved;
2600 	__u8   ShortName[12];
2601 	char FileName[1];
2602 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2603 
2604 typedef struct {
2605 	__u32  ResumeKey;
2606 	__le16 CreationDate; /* SMB Date */
2607 	__le16 CreationTime; /* SMB Time */
2608 	__le16 LastAccessDate;
2609 	__le16 LastAccessTime;
2610 	__le16 LastWriteDate;
2611 	__le16 LastWriteTime;
2612 	__le32 DataSize; /* File Size (EOF) */
2613 	__le32 AllocationSize;
2614 	__le16 Attributes; /* verify not u32 */
2615 	__u8   FileNameLength;
2616 	char FileName[1];
2617 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2618 
2619 
2620 struct win_dev {
2621 	unsigned char type[8]; /* IntxCHR or IntxBLK */
2622 	__le64 major;
2623 	__le64 minor;
2624 } __attribute__((packed));
2625 
2626 struct gea {
2627 	unsigned char name_len;
2628 	char name[1];
2629 } __attribute__((packed));
2630 
2631 struct gealist {
2632 	unsigned long list_len;
2633 	struct gea list[1];
2634 } __attribute__((packed));
2635 
2636 struct fea {
2637 	unsigned char EA_flags;
2638 	__u8 name_len;
2639 	__le16 value_len;
2640 	char name[1];
2641 	/* optionally followed by value */
2642 } __attribute__((packed));
2643 /* flags for _FEA.fEA */
2644 #define FEA_NEEDEA         0x80	/* need EA bit */
2645 
2646 struct fealist {
2647 	__le32 list_len;
2648 	struct fea list[1];
2649 } __attribute__((packed));
2650 
2651 /* used to hold an arbitrary blob of data */
2652 struct data_blob {
2653 	__u8 *data;
2654 	size_t length;
2655 	void (*free) (struct data_blob *data_blob);
2656 } __attribute__((packed));
2657 
2658 
2659 #ifdef CONFIG_CIFS_POSIX
2660 /*
2661 	For better POSIX semantics from Linux client, (even better
2662 	than the existing CIFS Unix Extensions) we need updated PDUs for:
2663 
2664 	1) PosixCreateX - to set and return the mode, inode#, device info and
2665 	perhaps add a CreateDevice - to create Pipes and other special .inodes
2666 	Also note POSIX open flags
2667 	2) Close - to return the last write time to do cache across close
2668 		more safely
2669 	3) FindFirst return unique inode number - what about resume key, two
2670 	forms short (matches readdir) and full (enough info to cache inodes)
2671 	4) Mkdir - set mode
2672 
2673 	And under consideration:
2674 	5) FindClose2 (return nanosecond timestamp ??)
2675 	6) Use nanosecond timestamps throughout all time fields if
2676 	   corresponding attribute flag is set
2677 	7) sendfile - handle based copy
2678 
2679 	what about fixing 64 bit alignment
2680 
2681 	There are also various legacy SMB/CIFS requests used as is
2682 
2683 	From existing Lanman and NTLM dialects:
2684 	--------------------------------------
2685 	NEGOTIATE
2686 	SESSION_SETUP_ANDX (BB which?)
2687 	TREE_CONNECT_ANDX (BB which wct?)
2688 	TREE_DISCONNECT (BB add volume timestamp on response)
2689 	LOGOFF_ANDX
2690 	DELETE (note delete open file behavior)
2691 	DELETE_DIRECTORY
2692 	READ_AND_X
2693 	WRITE_AND_X
2694 	LOCKING_AND_X (note posix lock semantics)
2695 	RENAME (note rename across dirs and open file rename posix behaviors)
2696 	NT_RENAME (for hardlinks) Is this good enough for all features?
2697 	FIND_CLOSE2
2698 	TRANSACTION2 (18 cases)
2699 		SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2700 		(BB verify that never need to set allocation size)
2701 		SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2702 			 Unix ext?)
2703 
2704 	COPY (note support for copy across directories) - FUTURE, OPTIONAL
2705 	setting/getting OS/2 EAs - FUTURE (BB can this handle
2706 	setting Linux xattrs perfectly)         - OPTIONAL
2707 	dnotify                                 - FUTURE, OPTIONAL
2708 	quota                                   - FUTURE, OPTIONAL
2709 
2710 	Note that various requests implemented for NT interop such as
2711 		NT_TRANSACT (IOCTL) QueryReparseInfo
2712 	are unneeded to servers compliant with the CIFS POSIX extensions
2713 
2714 	From CIFS Unix Extensions:
2715 	-------------------------
2716 	T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2717 	T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2718 	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2719 	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)	BB check for missing
2720 							inode fields
2721 				Actually a need QUERY_FILE_UNIX_INFO
2722 				since has inode num
2723 				BB what about a) blksize/blkbits/blocks
2724 							  b) i_version
2725 							  c) i_rdev
2726 							  d) notify mask?
2727 							  e) generation
2728 							  f) size_seqcount
2729 	T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2730 	TRANS2_GET_DFS_REFERRAL		      - OPTIONAL but recommended
2731 	T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2732  */
2733 
2734 /* xsymlink is a symlink format (used by MacOS) that can be used
2735    to save symlink info in a regular file when
2736    mounted to operating systems that do not
2737    support the cifs Unix extensions or EAs (for xattr
2738    based symlinks).  For such a file to be recognized
2739    as containing symlink data:
2740 
2741    1) file size must be 1067,
2742    2) signature must begin file data,
2743    3) length field must be set to ASCII representation
2744 	of a number which is less than or equal to 1024,
2745    4) md5 must match that of the path data */
2746 
2747 struct xsymlink {
2748 	/* 1067 bytes */
2749 	char signature[4]; /* XSym */ /* not null terminated */
2750 	char cr0;         /* \n */
2751 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2752 	char length[4];
2753 	char cr1;         /* \n */
2754 /* md5 of valid subset of path ie path[0] through path[length-1] */
2755 	__u8 md5[32];
2756 	char cr2;        /* \n */
2757 /* if room left, then end with \n then 0x20s by convention but not required */
2758 	char path[1024];
2759 } __attribute__((packed));
2760 
2761 typedef struct file_xattr_info {
2762 	/* BB do we need another field for flags? BB */
2763 	__u32 xattr_name_len;
2764 	__u32 xattr_value_len;
2765 	char  xattr_name[];
2766 	/* followed by xattr_value[xattr_value_len], no pad */
2767 } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2768 					      level 0x205 */
2769 
2770 /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
2771 
2772 typedef struct file_chattr_info {
2773 	__le64	mask; /* list of all possible attribute bits */
2774 	__le64	mode; /* list of actual attribute bits on this inode */
2775 } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
2776 						(chattr, chflags) level 0x206 */
2777 #endif 				/* POSIX */
2778 #endif				/* _CIFSPDU_H */
2779