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 SYSTEM_SECURITY 0x01000000 /* The system access control list */
249 /* can be read and changed */
250 #define GENERIC_ALL 0x10000000
251 #define GENERIC_EXECUTE 0x20000000
252 #define GENERIC_WRITE 0x40000000
253 #define GENERIC_READ 0x80000000
254 /* In summary - Relevant file */
255 /* access flags from CIFS are */
256 /* file_read_data, file_write_data */
257 /* file_execute, file_read_attributes*/
258 /* write_dac, and delete. */
259
260 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
261 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
262 | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
263 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
264
265 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
266 | FILE_READ_ATTRIBUTES \
267 | FILE_WRITE_ATTRIBUTES \
268 | DELETE | READ_CONTROL | WRITE_DAC \
269 | WRITE_OWNER | SYNCHRONIZE)
270 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
271 | FILE_READ_EA | FILE_WRITE_EA \
272 | FILE_READ_ATTRIBUTES \
273 | FILE_WRITE_ATTRIBUTES \
274 | DELETE | READ_CONTROL | WRITE_DAC \
275 | WRITE_OWNER | SYNCHRONIZE)
276 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
277 | FILE_READ_ATTRIBUTES \
278 | FILE_WRITE_ATTRIBUTES \
279 | DELETE | READ_CONTROL | WRITE_DAC \
280 | WRITE_OWNER | SYNCHRONIZE)
281
282 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
283 | READ_CONTROL | SYNCHRONIZE)
284
285
286 /*
287 * Invalid readdir handle
288 */
289 #define CIFS_NO_HANDLE 0xFFFF
290
291 #define NO_CHANGE_64 0xFFFFFFFFFFFFFFFFULL
292
293 /* IPC$ in ASCII */
294 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
295
296 /* IPC$ in Unicode */
297 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
298
299 /* Unicode Null terminate 2 bytes of 0 */
300 #define UNICODE_NULL "\x00\x00"
301 #define ASCII_NULL 0x00
302
303 /*
304 * Server type values (returned on EnumServer API
305 */
306 #define CIFS_SV_TYPE_DC 0x00000008
307 #define CIFS_SV_TYPE_BACKDC 0x00000010
308
309 /*
310 * Alias type flags (From EnumAlias API call
311 */
312 #define CIFS_ALIAS_TYPE_FILE 0x0001
313 #define CIFS_SHARE_TYPE_FILE 0x0000
314
315 /*
316 * File Attribute flags
317 */
318 #define ATTR_READONLY 0x0001
319 #define ATTR_HIDDEN 0x0002
320 #define ATTR_SYSTEM 0x0004
321 #define ATTR_VOLUME 0x0008
322 #define ATTR_DIRECTORY 0x0010
323 #define ATTR_ARCHIVE 0x0020
324 #define ATTR_DEVICE 0x0040
325 #define ATTR_NORMAL 0x0080
326 #define ATTR_TEMPORARY 0x0100
327 #define ATTR_SPARSE 0x0200
328 #define ATTR_REPARSE 0x0400
329 #define ATTR_COMPRESSED 0x0800
330 #define ATTR_OFFLINE 0x1000 /* ie file not immediately available -
331 on offline storage */
332 #define ATTR_NOT_CONTENT_INDEXED 0x2000
333 #define ATTR_ENCRYPTED 0x4000
334 #define ATTR_POSIX_SEMANTICS 0x01000000
335 #define ATTR_BACKUP_SEMANTICS 0x02000000
336 #define ATTR_DELETE_ON_CLOSE 0x04000000
337 #define ATTR_SEQUENTIAL_SCAN 0x08000000
338 #define ATTR_RANDOM_ACCESS 0x10000000
339 #define ATTR_NO_BUFFERING 0x20000000
340 #define ATTR_WRITE_THROUGH 0x80000000
341
342 /* ShareAccess flags */
343 #define FILE_NO_SHARE 0x00000000
344 #define FILE_SHARE_READ 0x00000001
345 #define FILE_SHARE_WRITE 0x00000002
346 #define FILE_SHARE_DELETE 0x00000004
347 #define FILE_SHARE_ALL 0x00000007
348
349 /* CreateDisposition flags, similar to CreateAction as well */
350 #define FILE_SUPERSEDE 0x00000000
351 #define FILE_OPEN 0x00000001
352 #define FILE_CREATE 0x00000002
353 #define FILE_OPEN_IF 0x00000003
354 #define FILE_OVERWRITE 0x00000004
355 #define FILE_OVERWRITE_IF 0x00000005
356
357 /* CreateOptions */
358 #define CREATE_NOT_FILE 0x00000001 /* if set must not be file */
359 #define CREATE_WRITE_THROUGH 0x00000002
360 #define CREATE_SEQUENTIAL 0x00000004
361 #define CREATE_NO_BUFFER 0x00000008 /* should not buffer on srv */
362 #define CREATE_SYNC_ALERT 0x00000010 /* MBZ */
363 #define CREATE_ASYNC_ALERT 0x00000020 /* MBZ */
364 #define CREATE_NOT_DIR 0x00000040 /* if set must not be directory */
365 #define CREATE_TREE_CONNECTION 0x00000080 /* should be zero */
366 #define CREATE_COMPLETE_IF_OPLK 0x00000100 /* should be zero */
367 #define CREATE_NO_EA_KNOWLEDGE 0x00000200
368 #define CREATE_EIGHT_DOT_THREE 0x00000400 /* doc says this is obsolete
369 "open for recovery" flag should
370 be zero in any case */
371 #define CREATE_OPEN_FOR_RECOVERY 0x00000400
372 #define CREATE_RANDOM_ACCESS 0x00000800
373 #define CREATE_DELETE_ON_CLOSE 0x00001000
374 #define CREATE_OPEN_BY_ID 0x00002000
375 #define CREATE_OPEN_BACKUP_INTENT 0x00004000
376 #define CREATE_NO_COMPRESSION 0x00008000
377 #define CREATE_RESERVE_OPFILTER 0x00100000 /* should be zero */
378 #define OPEN_REPARSE_POINT 0x00200000
379 #define OPEN_NO_RECALL 0x00400000
380 #define OPEN_FREE_SPACE_QUERY 0x00800000 /* should be zero */
381 #define CREATE_OPTIONS_MASK 0x007FFFFF
382 #define CREATE_OPTION_READONLY 0x10000000
383 #define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */
384
385 /* ImpersonationLevel flags */
386 #define SECURITY_ANONYMOUS 0
387 #define SECURITY_IDENTIFICATION 1
388 #define SECURITY_IMPERSONATION 2
389 #define SECURITY_DELEGATION 3
390
391 /* SecurityFlags */
392 #define SECURITY_CONTEXT_TRACKING 0x01
393 #define SECURITY_EFFECTIVE_ONLY 0x02
394
395 /*
396 * Default PID value, used in all SMBs where the PID is not important
397 */
398 #define CIFS_DFT_PID 0x1234
399
400 /*
401 * We use the same routine for Copy and Move SMBs. This flag is used to
402 * distinguish
403 */
404 #define CIFS_COPY_OP 1
405 #define CIFS_RENAME_OP 2
406
407 #define GETU16(var) (*((__u16 *)var)) /* BB check for endian issues */
408 #define GETU32(var) (*((__u32 *)var)) /* BB check for endian issues */
409
410 struct smb_hdr {
411 __be32 smb_buf_length; /* BB length is only two (rarely three) bytes,
412 with one or two byte "type" preceding it that will be
413 zero - we could mask the type byte off */
414 __u8 Protocol[4];
415 __u8 Command;
416 union {
417 struct {
418 __u8 ErrorClass;
419 __u8 Reserved;
420 __le16 Error;
421 } __attribute__((packed)) DosError;
422 __le32 CifsError;
423 } __attribute__((packed)) Status;
424 __u8 Flags;
425 __le16 Flags2; /* note: le */
426 __le16 PidHigh;
427 union {
428 struct {
429 __le32 SequenceNumber; /* le */
430 __u32 Reserved; /* zero */
431 } __attribute__((packed)) Sequence;
432 __u8 SecuritySignature[8]; /* le */
433 } __attribute__((packed)) Signature;
434 __u8 pad[2];
435 __u16 Tid;
436 __le16 Pid;
437 __u16 Uid;
438 __le16 Mid;
439 __u8 WordCount;
440 } __attribute__((packed));
441
442 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
443 static inline void *
BCC(struct smb_hdr * smb)444 BCC(struct smb_hdr *smb)
445 {
446 return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
447 }
448
449 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
450 #define pByteArea(smb_var) (BCC(smb_var) + 2)
451
452 /* get the unconverted ByteCount for a SMB packet and return it */
453 static inline __u16
get_bcc(struct smb_hdr * hdr)454 get_bcc(struct smb_hdr *hdr)
455 {
456 __le16 *bc_ptr = (__le16 *)BCC(hdr);
457
458 return get_unaligned_le16(bc_ptr);
459 }
460
461 /* set the ByteCount for a SMB packet in little-endian */
462 static inline void
put_bcc(__u16 count,struct smb_hdr * hdr)463 put_bcc(__u16 count, struct smb_hdr *hdr)
464 {
465 __le16 *bc_ptr = (__le16 *)BCC(hdr);
466
467 put_unaligned_le16(count, bc_ptr);
468 }
469
470 /*
471 * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
472 * No longer as important, now that TCP names are more commonly used to
473 * resolve hosts.
474 */
475 #define CNLEN 15
476
477 /*
478 * Share Name Length (SNLEN)
479 * Note: This length was limited by the SMB used to get
480 * the Share info. NetShareEnum only returned 13
481 * chars, including the null termination.
482 * This was removed because it no longer is limiting.
483 */
484
485 /*
486 * Comment Length
487 */
488 #define MAXCOMMENTLEN 40
489
490 /*
491 * The OS/2 maximum path name
492 */
493 #define MAX_PATHCONF 256
494
495 /*
496 * SMB frame definitions (following must be packed structs)
497 * See the SNIA CIFS Specification for details.
498 *
499 * The Naming convention is the lower case version of the
500 * smb command code name for the struct and this is typedef to the
501 * uppercase version of the same name with the prefix SMB_ removed
502 * for brevity. Although typedefs are not commonly used for
503 * structure definitions in the Linux kernel, their use in the
504 * CIFS standards document, which this code is based on, may
505 * make this one of the cases where typedefs for structures make
506 * sense to improve readability for readers of the standards doc.
507 * Typedefs can always be removed later if they are too distracting
508 * and they are only used for the CIFSs PDUs themselves, not
509 * internal cifs vfs structures
510 *
511 */
512
513 typedef struct negotiate_req {
514 struct smb_hdr hdr; /* wct = 0 */
515 __le16 ByteCount;
516 unsigned char DialectsArray[1];
517 } __attribute__((packed)) NEGOTIATE_REQ;
518
519 /* Dialect index is 13 for LANMAN */
520
521 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
522
523 typedef struct lanman_neg_rsp {
524 struct smb_hdr hdr; /* wct = 13 */
525 __le16 DialectIndex;
526 __le16 SecurityMode;
527 __le16 MaxBufSize;
528 __le16 MaxMpxCount;
529 __le16 MaxNumberVcs;
530 __le16 RawMode;
531 __le32 SessionKey;
532 struct {
533 __le16 Time;
534 __le16 Date;
535 } __attribute__((packed)) SrvTime;
536 __le16 ServerTimeZone;
537 __le16 EncryptionKeyLength;
538 __le16 Reserved;
539 __u16 ByteCount;
540 unsigned char EncryptionKey[1];
541 } __attribute__((packed)) LANMAN_NEG_RSP;
542
543 #define READ_RAW_ENABLE 1
544 #define WRITE_RAW_ENABLE 2
545 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
546 #define SMB1_CLIENT_GUID_SIZE (16)
547 typedef struct negotiate_rsp {
548 struct smb_hdr hdr; /* wct = 17 */
549 __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
550 __u8 SecurityMode;
551 __le16 MaxMpxCount;
552 __le16 MaxNumberVcs;
553 __le32 MaxBufferSize;
554 __le32 MaxRawSize;
555 __le32 SessionKey;
556 __le32 Capabilities; /* see below */
557 __le32 SystemTimeLow;
558 __le32 SystemTimeHigh;
559 __le16 ServerTimeZone;
560 __u8 EncryptionKeyLength;
561 __u16 ByteCount;
562 union {
563 unsigned char EncryptionKey[1]; /* cap extended security off */
564 /* followed by Domain name - if extended security is off */
565 /* followed by 16 bytes of server GUID */
566 /* then security blob if cap_extended_security negotiated */
567 struct {
568 unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
569 unsigned char SecurityBlob[1];
570 } __attribute__((packed)) extended_response;
571 } __attribute__((packed)) u;
572 } __attribute__((packed)) NEGOTIATE_RSP;
573
574 /* SecurityMode bits */
575 #define SECMODE_USER 0x01 /* off indicates share level security */
576 #define SECMODE_PW_ENCRYPT 0x02
577 #define SECMODE_SIGN_ENABLED 0x04 /* SMB security signatures enabled */
578 #define SECMODE_SIGN_REQUIRED 0x08 /* SMB security signatures required */
579
580 /* Negotiate response Capabilities */
581 #define CAP_RAW_MODE 0x00000001
582 #define CAP_MPX_MODE 0x00000002
583 #define CAP_UNICODE 0x00000004
584 #define CAP_LARGE_FILES 0x00000008
585 #define CAP_NT_SMBS 0x00000010 /* implies CAP_NT_FIND */
586 #define CAP_RPC_REMOTE_APIS 0x00000020
587 #define CAP_STATUS32 0x00000040
588 #define CAP_LEVEL_II_OPLOCKS 0x00000080
589 #define CAP_LOCK_AND_READ 0x00000100
590 #define CAP_NT_FIND 0x00000200
591 #define CAP_DFS 0x00001000
592 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
593 #define CAP_LARGE_READ_X 0x00004000
594 #define CAP_LARGE_WRITE_X 0x00008000
595 #define CAP_LWIO 0x00010000 /* support fctl_srv_req_resume_key */
596 #define CAP_UNIX 0x00800000
597 #define CAP_COMPRESSED_DATA 0x02000000
598 #define CAP_DYNAMIC_REAUTH 0x20000000
599 #define CAP_PERSISTENT_HANDLES 0x40000000
600 #define CAP_EXTENDED_SECURITY 0x80000000
601
602 typedef union smb_com_session_setup_andx {
603 struct { /* request format */
604 struct smb_hdr hdr; /* wct = 12 */
605 __u8 AndXCommand;
606 __u8 AndXReserved;
607 __le16 AndXOffset;
608 __le16 MaxBufferSize;
609 __le16 MaxMpxCount;
610 __le16 VcNumber;
611 __u32 SessionKey;
612 __le16 SecurityBlobLength;
613 __u32 Reserved;
614 __le32 Capabilities; /* see below */
615 __le16 ByteCount;
616 unsigned char SecurityBlob[1]; /* followed by */
617 /* STRING NativeOS */
618 /* STRING NativeLanMan */
619 } __attribute__((packed)) req; /* NTLM request format (with
620 extended security */
621
622 struct { /* request format */
623 struct smb_hdr hdr; /* wct = 13 */
624 __u8 AndXCommand;
625 __u8 AndXReserved;
626 __le16 AndXOffset;
627 __le16 MaxBufferSize;
628 __le16 MaxMpxCount;
629 __le16 VcNumber;
630 __u32 SessionKey;
631 __le16 CaseInsensitivePasswordLength; /* ASCII password len */
632 __le16 CaseSensitivePasswordLength; /* Unicode password length*/
633 __u32 Reserved; /* see below */
634 __le32 Capabilities;
635 __le16 ByteCount;
636 unsigned char CaseInsensitivePassword[1]; /* followed by: */
637 /* unsigned char * CaseSensitivePassword; */
638 /* STRING AccountName */
639 /* STRING PrimaryDomain */
640 /* STRING NativeOS */
641 /* STRING NativeLanMan */
642 } __attribute__((packed)) req_no_secext; /* NTLM request format (without
643 extended security */
644
645 struct { /* default (NTLM) response format */
646 struct smb_hdr hdr; /* wct = 4 */
647 __u8 AndXCommand;
648 __u8 AndXReserved;
649 __le16 AndXOffset;
650 __le16 Action; /* see below */
651 __le16 SecurityBlobLength;
652 __u16 ByteCount;
653 unsigned char SecurityBlob[1]; /* followed by */
654 /* unsigned char * NativeOS; */
655 /* unsigned char * NativeLanMan; */
656 /* unsigned char * PrimaryDomain; */
657 } __attribute__((packed)) resp; /* NTLM response
658 (with or without extended sec) */
659
660 struct { /* request format */
661 struct smb_hdr hdr; /* wct = 10 */
662 __u8 AndXCommand;
663 __u8 AndXReserved;
664 __le16 AndXOffset;
665 __le16 MaxBufferSize;
666 __le16 MaxMpxCount;
667 __le16 VcNumber;
668 __u32 SessionKey;
669 __le16 PasswordLength;
670 __u32 Reserved; /* encrypt key len and offset */
671 __le16 ByteCount;
672 unsigned char AccountPassword[1]; /* followed by */
673 /* STRING AccountName */
674 /* STRING PrimaryDomain */
675 /* STRING NativeOS */
676 /* STRING NativeLanMan */
677 } __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
678
679 struct { /* default (NTLM) response format */
680 struct smb_hdr hdr; /* wct = 3 */
681 __u8 AndXCommand;
682 __u8 AndXReserved;
683 __le16 AndXOffset;
684 __le16 Action; /* see below */
685 __u16 ByteCount;
686 unsigned char NativeOS[1]; /* followed by */
687 /* unsigned char * NativeLanMan; */
688 /* unsigned char * PrimaryDomain; */
689 } __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
690 } __attribute__((packed)) SESSION_SETUP_ANDX;
691
692 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
693
694 #define NTLMSSP_SERVER_TYPE 1
695 #define NTLMSSP_DOMAIN_TYPE 2
696 #define NTLMSSP_FQ_DOMAIN_TYPE 3
697 #define NTLMSSP_DNS_DOMAIN_TYPE 4
698 #define NTLMSSP_DNS_PARENT_TYPE 5
699
700 struct ntlmssp2_name {
701 __le16 type;
702 __le16 length;
703 /* char name[length]; */
704 } __attribute__((packed));
705
706 struct ntlmv2_resp {
707 union {
708 char ntlmv2_hash[CIFS_ENCPWD_SIZE];
709 struct {
710 __u8 reserved[8];
711 __u8 key[CIFS_SERVER_CHALLENGE_SIZE];
712 } __attribute__((packed)) challenge;
713 } __attribute__((packed));
714 __le32 blob_signature;
715 __u32 reserved;
716 __le64 time;
717 __u64 client_chal; /* random */
718 __u32 reserved2;
719 /* array of name entries could follow ending in minimum 4 byte struct */
720 } __attribute__((packed));
721
722
723 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
724
725 /* Capabilities bits (for NTLM SessSetup request) */
726 #define CAP_UNICODE 0x00000004
727 #define CAP_LARGE_FILES 0x00000008
728 #define CAP_NT_SMBS 0x00000010
729 #define CAP_STATUS32 0x00000040
730 #define CAP_LEVEL_II_OPLOCKS 0x00000080
731 #define CAP_NT_FIND 0x00000200 /* reserved should be zero
732 (because NT_SMBs implies the same thing?) */
733 #define CAP_BULK_TRANSFER 0x20000000
734 #define CAP_EXTENDED_SECURITY 0x80000000
735
736 /* Action bits */
737 #define GUEST_LOGIN 1
738
739 typedef struct smb_com_tconx_req {
740 struct smb_hdr hdr; /* wct = 4 */
741 __u8 AndXCommand;
742 __u8 AndXReserved;
743 __le16 AndXOffset;
744 __le16 Flags; /* see below */
745 __le16 PasswordLength;
746 __le16 ByteCount;
747 unsigned char Password[1]; /* followed by */
748 /* STRING Path *//* \\server\share name */
749 /* STRING Service */
750 } __attribute__((packed)) TCONX_REQ;
751
752 typedef struct smb_com_tconx_rsp {
753 struct smb_hdr hdr; /* wct = 3 , not extended response */
754 __u8 AndXCommand;
755 __u8 AndXReserved;
756 __le16 AndXOffset;
757 __le16 OptionalSupport; /* see below */
758 __u16 ByteCount;
759 unsigned char Service[1]; /* always ASCII, not Unicode */
760 /* STRING NativeFileSystem */
761 } __attribute__((packed)) TCONX_RSP;
762
763 typedef struct smb_com_tconx_rsp_ext {
764 struct smb_hdr hdr; /* wct = 7, extended response */
765 __u8 AndXCommand;
766 __u8 AndXReserved;
767 __le16 AndXOffset;
768 __le16 OptionalSupport; /* see below */
769 __le32 MaximalShareAccessRights;
770 __le32 GuestMaximalShareAccessRights;
771 __u16 ByteCount;
772 unsigned char Service[1]; /* always ASCII, not Unicode */
773 /* STRING NativeFileSystem */
774 } __attribute__((packed)) TCONX_RSP_EXT;
775
776
777 /* tree connect Flags */
778 #define DISCONNECT_TID 0x0001
779 #define TCON_EXTENDED_SIGNATURES 0x0004
780 #define TCON_EXTENDED_SECINFO 0x0008
781
782 /* OptionalSupport bits */
783 #define SMB_SUPPORT_SEARCH_BITS 0x0001 /* "must have" directory search bits
784 (exclusive searches supported) */
785 #define SMB_SHARE_IS_IN_DFS 0x0002
786 #define SMB_CSC_MASK 0x000C
787 /* CSC flags defined as follows */
788 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
789 #define SMB_CSC_CACHE_AUTO_REINT 0x0004
790 #define SMB_CSC_CACHE_VDO 0x0008
791 #define SMB_CSC_NO_CACHING 0x000C
792 #define SMB_UNIQUE_FILE_NAME 0x0010
793 #define SMB_EXTENDED_SIGNATURES 0x0020
794
795 /* services
796 *
797 * A: ie disk
798 * LPT1: ie printer
799 * IPC ie named pipe
800 * COMM
801 * ????? ie any type
802 *
803 */
804
805 typedef struct smb_com_echo_req {
806 struct smb_hdr hdr;
807 __le16 EchoCount;
808 __le16 ByteCount;
809 char Data[1];
810 } __attribute__((packed)) ECHO_REQ;
811
812 typedef struct smb_com_echo_rsp {
813 struct smb_hdr hdr;
814 __le16 SequenceNumber;
815 __le16 ByteCount;
816 char Data[1];
817 } __attribute__((packed)) ECHO_RSP;
818
819 typedef struct smb_com_logoff_andx_req {
820 struct smb_hdr hdr; /* wct = 2 */
821 __u8 AndXCommand;
822 __u8 AndXReserved;
823 __u16 AndXOffset;
824 __u16 ByteCount;
825 } __attribute__((packed)) LOGOFF_ANDX_REQ;
826
827 typedef struct smb_com_logoff_andx_rsp {
828 struct smb_hdr hdr; /* wct = 2 */
829 __u8 AndXCommand;
830 __u8 AndXReserved;
831 __u16 AndXOffset;
832 __u16 ByteCount;
833 } __attribute__((packed)) LOGOFF_ANDX_RSP;
834
835 typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on
836 tree_connect PDU to effect disconnect */
837 /* tdis is probably simplest SMB PDU */
838 struct {
839 struct smb_hdr hdr; /* wct = 0 */
840 __u16 ByteCount; /* bcc = 0 */
841 } __attribute__((packed)) req;
842 struct {
843 struct smb_hdr hdr; /* wct = 0 */
844 __u16 ByteCount; /* bcc = 0 */
845 } __attribute__((packed)) resp;
846 } __attribute__((packed)) TREE_DISCONNECT;
847
848 typedef struct smb_com_close_req {
849 struct smb_hdr hdr; /* wct = 3 */
850 __u16 FileID;
851 __u32 LastWriteTime; /* should be zero or -1 */
852 __u16 ByteCount; /* 0 */
853 } __attribute__((packed)) CLOSE_REQ;
854
855 typedef struct smb_com_close_rsp {
856 struct smb_hdr hdr; /* wct = 0 */
857 __u16 ByteCount; /* bct = 0 */
858 } __attribute__((packed)) CLOSE_RSP;
859
860 typedef struct smb_com_flush_req {
861 struct smb_hdr hdr; /* wct = 1 */
862 __u16 FileID;
863 __u16 ByteCount; /* 0 */
864 } __attribute__((packed)) FLUSH_REQ;
865
866 typedef struct smb_com_findclose_req {
867 struct smb_hdr hdr; /* wct = 1 */
868 __u16 FileID;
869 __u16 ByteCount; /* 0 */
870 } __attribute__((packed)) FINDCLOSE_REQ;
871
872 /* OpenFlags */
873 #define REQ_MORE_INFO 0x00000001 /* legacy (OPEN_AND_X) only */
874 #define REQ_OPLOCK 0x00000002
875 #define REQ_BATCHOPLOCK 0x00000004
876 #define REQ_OPENDIRONLY 0x00000008
877 #define REQ_EXTENDED_INFO 0x00000010
878
879 /* File type */
880 #define DISK_TYPE 0x0000
881 #define BYTE_PIPE_TYPE 0x0001
882 #define MESSAGE_PIPE_TYPE 0x0002
883 #define PRINTER_TYPE 0x0003
884 #define COMM_DEV_TYPE 0x0004
885 #define UNKNOWN_TYPE 0xFFFF
886
887 /* Device Type or File Status Flags */
888 #define NO_EAS 0x0001
889 #define NO_SUBSTREAMS 0x0002
890 #define NO_REPARSETAG 0x0004
891 /* following flags can apply if pipe */
892 #define ICOUNT_MASK 0x00FF
893 #define PIPE_READ_MODE 0x0100
894 #define NAMED_PIPE_TYPE 0x0400
895 #define PIPE_END_POINT 0x4000
896 #define BLOCKING_NAMED_PIPE 0x8000
897
898 typedef struct smb_com_open_req { /* also handles create */
899 struct smb_hdr hdr; /* wct = 24 */
900 __u8 AndXCommand;
901 __u8 AndXReserved;
902 __le16 AndXOffset;
903 __u8 Reserved; /* Must Be Zero */
904 __le16 NameLength;
905 __le32 OpenFlags;
906 __u32 RootDirectoryFid;
907 __le32 DesiredAccess;
908 __le64 AllocationSize;
909 __le32 FileAttributes;
910 __le32 ShareAccess;
911 __le32 CreateDisposition;
912 __le32 CreateOptions;
913 __le32 ImpersonationLevel;
914 __u8 SecurityFlags;
915 __le16 ByteCount;
916 char fileName[1];
917 } __attribute__((packed)) OPEN_REQ;
918
919 /* open response: oplock levels */
920 #define OPLOCK_NONE 0
921 #define OPLOCK_EXCLUSIVE 1
922 #define OPLOCK_BATCH 2
923 #define OPLOCK_READ 3 /* level 2 oplock */
924
925 /* open response for CreateAction shifted left */
926 #define CIFS_CREATE_ACTION 0x20000 /* file created */
927
928 typedef struct smb_com_open_rsp {
929 struct smb_hdr hdr; /* wct = 34 BB */
930 __u8 AndXCommand;
931 __u8 AndXReserved;
932 __le16 AndXOffset;
933 __u8 OplockLevel;
934 __u16 Fid;
935 __le32 CreateAction;
936 __le64 CreationTime;
937 __le64 LastAccessTime;
938 __le64 LastWriteTime;
939 __le64 ChangeTime;
940 __le32 FileAttributes;
941 __le64 AllocationSize;
942 __le64 EndOfFile;
943 __le16 FileType;
944 __le16 DeviceState;
945 __u8 DirectoryFlag;
946 __u16 ByteCount; /* bct = 0 */
947 } __attribute__((packed)) OPEN_RSP;
948
949 typedef struct smb_com_open_rsp_ext {
950 struct smb_hdr hdr; /* wct = 42 but meaningless due to MS bug? */
951 __u8 AndXCommand;
952 __u8 AndXReserved;
953 __le16 AndXOffset;
954 __u8 OplockLevel;
955 __u16 Fid;
956 __le32 CreateAction;
957 __le64 CreationTime;
958 __le64 LastAccessTime;
959 __le64 LastWriteTime;
960 __le64 ChangeTime;
961 __le32 FileAttributes;
962 __le64 AllocationSize;
963 __le64 EndOfFile;
964 __le16 FileType;
965 __le16 DeviceState;
966 __u8 DirectoryFlag;
967 __u8 VolumeGUID[16];
968 __u64 FileId; /* note no endian conversion - is opaque UniqueID */
969 __le32 MaximalAccessRights;
970 __le32 GuestMaximalAccessRights;
971 __u16 ByteCount; /* bct = 0 */
972 } __attribute__((packed)) OPEN_RSP_EXT;
973
974
975 /* format of legacy open request */
976 typedef struct smb_com_openx_req {
977 struct smb_hdr hdr; /* wct = 15 */
978 __u8 AndXCommand;
979 __u8 AndXReserved;
980 __le16 AndXOffset;
981 __le16 OpenFlags;
982 __le16 Mode;
983 __le16 Sattr; /* search attributes */
984 __le16 FileAttributes; /* dos attrs */
985 __le32 CreateTime; /* os2 format */
986 __le16 OpenFunction;
987 __le32 EndOfFile;
988 __le32 Timeout;
989 __le32 Reserved;
990 __le16 ByteCount; /* file name follows */
991 char fileName[1];
992 } __attribute__((packed)) OPENX_REQ;
993
994 typedef struct smb_com_openx_rsp {
995 struct smb_hdr hdr; /* wct = 15 */
996 __u8 AndXCommand;
997 __u8 AndXReserved;
998 __le16 AndXOffset;
999 __u16 Fid;
1000 __le16 FileAttributes;
1001 __le32 LastWriteTime; /* os2 format */
1002 __le32 EndOfFile;
1003 __le16 Access;
1004 __le16 FileType;
1005 __le16 IPCState;
1006 __le16 Action;
1007 __u32 FileId;
1008 __u16 Reserved;
1009 __u16 ByteCount;
1010 } __attribute__((packed)) OPENX_RSP;
1011
1012 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
1013
1014 /* Legacy write request for older servers */
1015 typedef struct smb_com_writex_req {
1016 struct smb_hdr hdr; /* wct = 12 */
1017 __u8 AndXCommand;
1018 __u8 AndXReserved;
1019 __le16 AndXOffset;
1020 __u16 Fid;
1021 __le32 OffsetLow;
1022 __u32 Reserved; /* Timeout */
1023 __le16 WriteMode; /* 1 = write through */
1024 __le16 Remaining;
1025 __le16 Reserved2;
1026 __le16 DataLengthLow;
1027 __le16 DataOffset;
1028 __le16 ByteCount;
1029 __u8 Pad; /* BB check for whether padded to DWORD
1030 boundary and optimum performance here */
1031 char Data[];
1032 } __attribute__((packed)) WRITEX_REQ;
1033
1034 typedef struct smb_com_write_req {
1035 struct smb_hdr hdr; /* wct = 14 */
1036 __u8 AndXCommand;
1037 __u8 AndXReserved;
1038 __le16 AndXOffset;
1039 __u16 Fid;
1040 __le32 OffsetLow;
1041 __u32 Reserved;
1042 __le16 WriteMode;
1043 __le16 Remaining;
1044 __le16 DataLengthHigh;
1045 __le16 DataLengthLow;
1046 __le16 DataOffset;
1047 __le32 OffsetHigh;
1048 __le16 ByteCount;
1049 __u8 Pad; /* BB check for whether padded to DWORD
1050 boundary and optimum performance here */
1051 char Data[];
1052 } __attribute__((packed)) WRITE_REQ;
1053
1054 typedef struct smb_com_write_rsp {
1055 struct smb_hdr hdr; /* wct = 6 */
1056 __u8 AndXCommand;
1057 __u8 AndXReserved;
1058 __le16 AndXOffset;
1059 __le16 Count;
1060 __le16 Remaining;
1061 __le16 CountHigh;
1062 __u16 Reserved;
1063 __u16 ByteCount;
1064 } __attribute__((packed)) WRITE_RSP;
1065
1066 /* legacy read request for older servers */
1067 typedef struct smb_com_readx_req {
1068 struct smb_hdr hdr; /* wct = 10 */
1069 __u8 AndXCommand;
1070 __u8 AndXReserved;
1071 __le16 AndXOffset;
1072 __u16 Fid;
1073 __le32 OffsetLow;
1074 __le16 MaxCount;
1075 __le16 MinCount; /* obsolete */
1076 __le32 Reserved;
1077 __le16 Remaining;
1078 __le16 ByteCount;
1079 } __attribute__((packed)) READX_REQ;
1080
1081 typedef struct smb_com_read_req {
1082 struct smb_hdr hdr; /* wct = 12 */
1083 __u8 AndXCommand;
1084 __u8 AndXReserved;
1085 __le16 AndXOffset;
1086 __u16 Fid;
1087 __le32 OffsetLow;
1088 __le16 MaxCount;
1089 __le16 MinCount; /* obsolete */
1090 __le32 MaxCountHigh;
1091 __le16 Remaining;
1092 __le32 OffsetHigh;
1093 __le16 ByteCount;
1094 } __attribute__((packed)) READ_REQ;
1095
1096 typedef struct smb_com_read_rsp {
1097 struct smb_hdr hdr; /* wct = 12 */
1098 __u8 AndXCommand;
1099 __u8 AndXReserved;
1100 __le16 AndXOffset;
1101 __le16 Remaining;
1102 __le16 DataCompactionMode;
1103 __le16 Reserved;
1104 __le16 DataLength;
1105 __le16 DataOffset;
1106 __le16 DataLengthHigh;
1107 __u64 Reserved2;
1108 __u16 ByteCount;
1109 /* read response data immediately follows */
1110 } __attribute__((packed)) READ_RSP;
1111
1112 typedef struct locking_andx_range {
1113 __le16 Pid;
1114 __le16 Pad;
1115 __le32 OffsetHigh;
1116 __le32 OffsetLow;
1117 __le32 LengthHigh;
1118 __le32 LengthLow;
1119 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1120
1121 #define LOCKING_ANDX_SHARED_LOCK 0x01
1122 #define LOCKING_ANDX_OPLOCK_RELEASE 0x02
1123 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1124 #define LOCKING_ANDX_CANCEL_LOCK 0x08
1125 #define LOCKING_ANDX_LARGE_FILES 0x10 /* always on for us */
1126
1127 typedef struct smb_com_lock_req {
1128 struct smb_hdr hdr; /* wct = 8 */
1129 __u8 AndXCommand;
1130 __u8 AndXReserved;
1131 __le16 AndXOffset;
1132 __u16 Fid;
1133 __u8 LockType;
1134 __u8 OplockLevel;
1135 __le32 Timeout;
1136 __le16 NumberOfUnlocks;
1137 __le16 NumberOfLocks;
1138 __le16 ByteCount;
1139 LOCKING_ANDX_RANGE Locks[1];
1140 } __attribute__((packed)) LOCK_REQ;
1141
1142 /* lock type */
1143 #define CIFS_RDLCK 0
1144 #define CIFS_WRLCK 1
1145 #define CIFS_UNLCK 2
1146 typedef struct cifs_posix_lock {
1147 __le16 lock_type; /* 0 = Read, 1 = Write, 2 = Unlock */
1148 __le16 lock_flags; /* 1 = Wait (only valid for setlock) */
1149 __le32 pid;
1150 __le64 start;
1151 __le64 length;
1152 /* BB what about additional owner info to identify network client */
1153 } __attribute__((packed)) CIFS_POSIX_LOCK;
1154
1155 typedef struct smb_com_lock_rsp {
1156 struct smb_hdr hdr; /* wct = 2 */
1157 __u8 AndXCommand;
1158 __u8 AndXReserved;
1159 __le16 AndXOffset;
1160 __u16 ByteCount;
1161 } __attribute__((packed)) LOCK_RSP;
1162
1163 typedef struct smb_com_rename_req {
1164 struct smb_hdr hdr; /* wct = 1 */
1165 __le16 SearchAttributes; /* target file attributes */
1166 __le16 ByteCount;
1167 __u8 BufferFormat; /* 4 = ASCII or Unicode */
1168 unsigned char OldFileName[1];
1169 /* followed by __u8 BufferFormat2 */
1170 /* followed by NewFileName */
1171 } __attribute__((packed)) RENAME_REQ;
1172
1173 /* copy request flags */
1174 #define COPY_MUST_BE_FILE 0x0001
1175 #define COPY_MUST_BE_DIR 0x0002
1176 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1177 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1178 #define COPY_VERIFY_WRITES 0x0010
1179 #define COPY_TREE 0x0020
1180
1181 typedef struct smb_com_copy_req {
1182 struct smb_hdr hdr; /* wct = 3 */
1183 __u16 Tid2;
1184 __le16 OpenFunction;
1185 __le16 Flags;
1186 __le16 ByteCount;
1187 __u8 BufferFormat; /* 4 = ASCII or Unicode */
1188 unsigned char OldFileName[1];
1189 /* followed by __u8 BufferFormat2 */
1190 /* followed by NewFileName string */
1191 } __attribute__((packed)) COPY_REQ;
1192
1193 typedef struct smb_com_copy_rsp {
1194 struct smb_hdr hdr; /* wct = 1 */
1195 __le16 CopyCount; /* number of files copied */
1196 __u16 ByteCount; /* may be zero */
1197 __u8 BufferFormat; /* 0x04 - only present if errored file follows */
1198 unsigned char ErrorFileName[1]; /* only present if error in copy */
1199 } __attribute__((packed)) COPY_RSP;
1200
1201 #define CREATE_HARD_LINK 0x103
1202 #define MOVEFILE_COPY_ALLOWED 0x0002
1203 #define MOVEFILE_REPLACE_EXISTING 0x0001
1204
1205 typedef struct smb_com_nt_rename_req { /* A5 - also used for create hardlink */
1206 struct smb_hdr hdr; /* wct = 4 */
1207 __le16 SearchAttributes; /* target file attributes */
1208 __le16 Flags; /* spec says Information Level */
1209 __le32 ClusterCount;
1210 __le16 ByteCount;
1211 __u8 BufferFormat; /* 4 = ASCII or Unicode */
1212 unsigned char OldFileName[1];
1213 /* followed by __u8 BufferFormat2 */
1214 /* followed by NewFileName */
1215 } __attribute__((packed)) NT_RENAME_REQ;
1216
1217 typedef struct smb_com_rename_rsp {
1218 struct smb_hdr hdr; /* wct = 0 */
1219 __u16 ByteCount; /* bct = 0 */
1220 } __attribute__((packed)) RENAME_RSP;
1221
1222 typedef struct smb_com_delete_file_req {
1223 struct smb_hdr hdr; /* wct = 1 */
1224 __le16 SearchAttributes;
1225 __le16 ByteCount;
1226 __u8 BufferFormat; /* 4 = ASCII */
1227 unsigned char fileName[1];
1228 } __attribute__((packed)) DELETE_FILE_REQ;
1229
1230 typedef struct smb_com_delete_file_rsp {
1231 struct smb_hdr hdr; /* wct = 0 */
1232 __u16 ByteCount; /* bct = 0 */
1233 } __attribute__((packed)) DELETE_FILE_RSP;
1234
1235 typedef struct smb_com_delete_directory_req {
1236 struct smb_hdr hdr; /* wct = 0 */
1237 __le16 ByteCount;
1238 __u8 BufferFormat; /* 4 = ASCII */
1239 unsigned char DirName[1];
1240 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1241
1242 typedef struct smb_com_delete_directory_rsp {
1243 struct smb_hdr hdr; /* wct = 0 */
1244 __u16 ByteCount; /* bct = 0 */
1245 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1246
1247 typedef struct smb_com_create_directory_req {
1248 struct smb_hdr hdr; /* wct = 0 */
1249 __le16 ByteCount;
1250 __u8 BufferFormat; /* 4 = ASCII */
1251 unsigned char DirName[1];
1252 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1253
1254 typedef struct smb_com_create_directory_rsp {
1255 struct smb_hdr hdr; /* wct = 0 */
1256 __u16 ByteCount; /* bct = 0 */
1257 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1258
1259 typedef struct smb_com_query_information_req {
1260 struct smb_hdr hdr; /* wct = 0 */
1261 __le16 ByteCount; /* 1 + namelen + 1 */
1262 __u8 BufferFormat; /* 4 = ASCII */
1263 unsigned char FileName[1];
1264 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1265
1266 typedef struct smb_com_query_information_rsp {
1267 struct smb_hdr hdr; /* wct = 10 */
1268 __le16 attr;
1269 __le32 last_write_time;
1270 __le32 size;
1271 __u16 reserved[5];
1272 __le16 ByteCount; /* bcc = 0 */
1273 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1274
1275 typedef struct smb_com_setattr_req {
1276 struct smb_hdr hdr; /* wct = 8 */
1277 __le16 attr;
1278 __le16 time_low;
1279 __le16 time_high;
1280 __le16 reserved[5]; /* must be zero */
1281 __u16 ByteCount;
1282 __u8 BufferFormat; /* 4 = ASCII */
1283 unsigned char fileName[1];
1284 } __attribute__((packed)) SETATTR_REQ;
1285
1286 typedef struct smb_com_setattr_rsp {
1287 struct smb_hdr hdr; /* wct = 0 */
1288 __u16 ByteCount; /* bct = 0 */
1289 } __attribute__((packed)) SETATTR_RSP;
1290
1291 /* empty wct response to setattr */
1292
1293 /*******************************************************/
1294 /* NT Transact structure definitions follow */
1295 /* Currently only ioctl, acl (get security descriptor) */
1296 /* and notify are implemented */
1297 /*******************************************************/
1298 typedef struct smb_com_ntransact_req {
1299 struct smb_hdr hdr; /* wct >= 19 */
1300 __u8 MaxSetupCount;
1301 __u16 Reserved;
1302 __le32 TotalParameterCount;
1303 __le32 TotalDataCount;
1304 __le32 MaxParameterCount;
1305 __le32 MaxDataCount;
1306 __le32 ParameterCount;
1307 __le32 ParameterOffset;
1308 __le32 DataCount;
1309 __le32 DataOffset;
1310 __u8 SetupCount; /* four setup words follow subcommand */
1311 /* SNIA spec incorrectly included spurious pad here */
1312 __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1313 /* SetupCount words follow then */
1314 __le16 ByteCount;
1315 __u8 Pad[3];
1316 __u8 Parms[];
1317 } __attribute__((packed)) NTRANSACT_REQ;
1318
1319 typedef struct smb_com_ntransact_rsp {
1320 struct smb_hdr hdr; /* wct = 18 */
1321 __u8 Reserved[3];
1322 __le32 TotalParameterCount;
1323 __le32 TotalDataCount;
1324 __le32 ParameterCount;
1325 __le32 ParameterOffset;
1326 __le32 ParameterDisplacement;
1327 __le32 DataCount;
1328 __le32 DataOffset;
1329 __le32 DataDisplacement;
1330 __u8 SetupCount; /* 0 */
1331 __u16 ByteCount;
1332 /* __u8 Pad[3]; */
1333 /* parms and data follow */
1334 } __attribute__((packed)) NTRANSACT_RSP;
1335
1336 /* See MS-SMB 2.2.7.2.1.1 */
1337 struct srv_copychunk {
1338 __le64 SourceOffset;
1339 __le64 DestinationOffset;
1340 __le32 CopyLength;
1341 __u32 Reserved;
1342 } __packed;
1343
1344 typedef struct smb_com_transaction_ioctl_req {
1345 struct smb_hdr hdr; /* wct = 23 */
1346 __u8 MaxSetupCount;
1347 __u16 Reserved;
1348 __le32 TotalParameterCount;
1349 __le32 TotalDataCount;
1350 __le32 MaxParameterCount;
1351 __le32 MaxDataCount;
1352 __le32 ParameterCount;
1353 __le32 ParameterOffset;
1354 __le32 DataCount;
1355 __le32 DataOffset;
1356 __u8 SetupCount; /* four setup words follow subcommand */
1357 /* SNIA spec incorrectly included spurious pad here */
1358 __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1359 __le32 FunctionCode;
1360 __u16 Fid;
1361 __u8 IsFsctl; /* 1 = File System Control 0 = device control (IOCTL) */
1362 __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1363 __le16 ByteCount;
1364 __u8 Pad[3];
1365 __u8 Data[1];
1366 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1367
1368 typedef struct smb_com_transaction_compr_ioctl_req {
1369 struct smb_hdr hdr; /* wct = 23 */
1370 __u8 MaxSetupCount;
1371 __u16 Reserved;
1372 __le32 TotalParameterCount;
1373 __le32 TotalDataCount;
1374 __le32 MaxParameterCount;
1375 __le32 MaxDataCount;
1376 __le32 ParameterCount;
1377 __le32 ParameterOffset;
1378 __le32 DataCount;
1379 __le32 DataOffset;
1380 __u8 SetupCount; /* four setup words follow subcommand */
1381 /* SNIA spec incorrectly included spurious pad here */
1382 __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1383 __le32 FunctionCode;
1384 __u16 Fid;
1385 __u8 IsFsctl; /* 1 = File System Control 0 = device control (IOCTL) */
1386 __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1387 __le16 ByteCount;
1388 __u8 Pad[3];
1389 __le16 compression_state; /* See below for valid flags */
1390 } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
1391
1392 /* compression state flags */
1393 #define COMPRESSION_FORMAT_NONE 0x0000
1394 #define COMPRESSION_FORMAT_DEFAULT 0x0001
1395 #define COMPRESSION_FORMAT_LZNT1 0x0002
1396
1397 typedef struct smb_com_transaction_ioctl_rsp {
1398 struct smb_hdr hdr; /* wct = 19 */
1399 __u8 Reserved[3];
1400 __le32 TotalParameterCount;
1401 __le32 TotalDataCount;
1402 __le32 ParameterCount;
1403 __le32 ParameterOffset;
1404 __le32 ParameterDisplacement;
1405 __le32 DataCount;
1406 __le32 DataOffset;
1407 __le32 DataDisplacement;
1408 __u8 SetupCount; /* 1 */
1409 __le16 ReturnedDataLen;
1410 __u16 ByteCount;
1411 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1412
1413 #define CIFS_ACL_OWNER 1
1414 #define CIFS_ACL_GROUP 2
1415 #define CIFS_ACL_DACL 4
1416 #define CIFS_ACL_SACL 8
1417
1418 typedef struct smb_com_transaction_qsec_req {
1419 struct smb_hdr hdr; /* wct = 19 */
1420 __u8 MaxSetupCount;
1421 __u16 Reserved;
1422 __le32 TotalParameterCount;
1423 __le32 TotalDataCount;
1424 __le32 MaxParameterCount;
1425 __le32 MaxDataCount;
1426 __le32 ParameterCount;
1427 __le32 ParameterOffset;
1428 __le32 DataCount;
1429 __le32 DataOffset;
1430 __u8 SetupCount; /* no setup words follow subcommand */
1431 /* SNIA spec incorrectly included spurious pad here */
1432 __le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1433 __le16 ByteCount; /* bcc = 3 + 8 */
1434 __u8 Pad[3];
1435 __u16 Fid;
1436 __u16 Reserved2;
1437 __le32 AclFlags;
1438 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1439
1440
1441 typedef struct smb_com_transaction_ssec_req {
1442 struct smb_hdr hdr; /* wct = 19 */
1443 __u8 MaxSetupCount;
1444 __u16 Reserved;
1445 __le32 TotalParameterCount;
1446 __le32 TotalDataCount;
1447 __le32 MaxParameterCount;
1448 __le32 MaxDataCount;
1449 __le32 ParameterCount;
1450 __le32 ParameterOffset;
1451 __le32 DataCount;
1452 __le32 DataOffset;
1453 __u8 SetupCount; /* no setup words follow subcommand */
1454 /* SNIA spec incorrectly included spurious pad here */
1455 __le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1456 __le16 ByteCount; /* bcc = 3 + 8 */
1457 __u8 Pad[3];
1458 __u16 Fid;
1459 __u16 Reserved2;
1460 __le32 AclFlags;
1461 } __attribute__((packed)) SET_SEC_DESC_REQ;
1462
1463 typedef struct smb_com_transaction_change_notify_req {
1464 struct smb_hdr hdr; /* wct = 23 */
1465 __u8 MaxSetupCount;
1466 __u16 Reserved;
1467 __le32 TotalParameterCount;
1468 __le32 TotalDataCount;
1469 __le32 MaxParameterCount;
1470 __le32 MaxDataCount;
1471 __le32 ParameterCount;
1472 __le32 ParameterOffset;
1473 __le32 DataCount;
1474 __le32 DataOffset;
1475 __u8 SetupCount; /* four setup words follow subcommand */
1476 /* SNIA spec incorrectly included spurious pad here */
1477 __le16 SubCommand;/* 4 = Change Notify */
1478 __le32 CompletionFilter; /* operation to monitor */
1479 __u16 Fid;
1480 __u8 WatchTree; /* 1 = Monitor subdirectories */
1481 __u8 Reserved2;
1482 __le16 ByteCount;
1483 /* __u8 Pad[3];*/
1484 /* __u8 Data[1];*/
1485 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1486
1487 /* BB eventually change to use generic ntransact rsp struct
1488 and validation routine */
1489 typedef struct smb_com_transaction_change_notify_rsp {
1490 struct smb_hdr hdr; /* wct = 18 */
1491 __u8 Reserved[3];
1492 __le32 TotalParameterCount;
1493 __le32 TotalDataCount;
1494 __le32 ParameterCount;
1495 __le32 ParameterOffset;
1496 __le32 ParameterDisplacement;
1497 __le32 DataCount;
1498 __le32 DataOffset;
1499 __le32 DataDisplacement;
1500 __u8 SetupCount; /* 0 */
1501 __u16 ByteCount;
1502 /* __u8 Pad[3]; */
1503 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1504 /* Completion Filter flags for Notify */
1505 #define FILE_NOTIFY_CHANGE_FILE_NAME 0x00000001
1506 #define FILE_NOTIFY_CHANGE_DIR_NAME 0x00000002
1507 #define FILE_NOTIFY_CHANGE_NAME 0x00000003
1508 #define FILE_NOTIFY_CHANGE_ATTRIBUTES 0x00000004
1509 #define FILE_NOTIFY_CHANGE_SIZE 0x00000008
1510 #define FILE_NOTIFY_CHANGE_LAST_WRITE 0x00000010
1511 #define FILE_NOTIFY_CHANGE_LAST_ACCESS 0x00000020
1512 #define FILE_NOTIFY_CHANGE_CREATION 0x00000040
1513 #define FILE_NOTIFY_CHANGE_EA 0x00000080
1514 #define FILE_NOTIFY_CHANGE_SECURITY 0x00000100
1515 #define FILE_NOTIFY_CHANGE_STREAM_NAME 0x00000200
1516 #define FILE_NOTIFY_CHANGE_STREAM_SIZE 0x00000400
1517 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1518
1519 #define FILE_ACTION_ADDED 0x00000001
1520 #define FILE_ACTION_REMOVED 0x00000002
1521 #define FILE_ACTION_MODIFIED 0x00000003
1522 #define FILE_ACTION_RENAMED_OLD_NAME 0x00000004
1523 #define FILE_ACTION_RENAMED_NEW_NAME 0x00000005
1524 #define FILE_ACTION_ADDED_STREAM 0x00000006
1525 #define FILE_ACTION_REMOVED_STREAM 0x00000007
1526 #define FILE_ACTION_MODIFIED_STREAM 0x00000008
1527
1528 /* response contains array of the following structures */
1529 struct file_notify_information {
1530 __le32 NextEntryOffset;
1531 __le32 Action;
1532 __le32 FileNameLength;
1533 __u8 FileName[];
1534 } __attribute__((packed));
1535
1536 /* For IO_REPARSE_TAG_SYMLINK */
1537 struct reparse_symlink_data {
1538 __le32 ReparseTag;
1539 __le16 ReparseDataLength;
1540 __u16 Reserved;
1541 __le16 SubstituteNameOffset;
1542 __le16 SubstituteNameLength;
1543 __le16 PrintNameOffset;
1544 __le16 PrintNameLength;
1545 __le32 Flags;
1546 char PathBuffer[];
1547 } __attribute__((packed));
1548
1549 /* Flag above */
1550 #define SYMLINK_FLAG_RELATIVE 0x00000001
1551
1552 /* For IO_REPARSE_TAG_NFS */
1553 #define NFS_SPECFILE_LNK 0x00000000014B4E4C
1554 #define NFS_SPECFILE_CHR 0x0000000000524843
1555 #define NFS_SPECFILE_BLK 0x00000000004B4C42
1556 #define NFS_SPECFILE_FIFO 0x000000004F464946
1557 #define NFS_SPECFILE_SOCK 0x000000004B434F53
1558 struct reparse_posix_data {
1559 __le32 ReparseTag;
1560 __le16 ReparseDataLength;
1561 __u16 Reserved;
1562 __le64 InodeType; /* LNK, FIFO, CHR etc. */
1563 char PathBuffer[];
1564 } __attribute__((packed));
1565
1566 struct cifs_quota_data {
1567 __u32 rsrvd1; /* 0 */
1568 __u32 sid_size;
1569 __u64 rsrvd2; /* 0 */
1570 __u64 space_used;
1571 __u64 soft_limit;
1572 __u64 hard_limit;
1573 char sid[1]; /* variable size? */
1574 } __attribute__((packed));
1575
1576 /* quota sub commands */
1577 #define QUOTA_LIST_CONTINUE 0
1578 #define QUOTA_LIST_START 0x100
1579 #define QUOTA_FOR_SID 0x101
1580
1581 struct trans2_req {
1582 /* struct smb_hdr hdr precedes. Set wct = 14+ */
1583 __le16 TotalParameterCount;
1584 __le16 TotalDataCount;
1585 __le16 MaxParameterCount;
1586 __le16 MaxDataCount;
1587 __u8 MaxSetupCount;
1588 __u8 Reserved;
1589 __le16 Flags;
1590 __le32 Timeout;
1591 __u16 Reserved2;
1592 __le16 ParameterCount;
1593 __le16 ParameterOffset;
1594 __le16 DataCount;
1595 __le16 DataOffset;
1596 __u8 SetupCount;
1597 __u8 Reserved3;
1598 __le16 SubCommand; /* 1st setup word - SetupCount words follow */
1599 __le16 ByteCount;
1600 } __attribute__((packed));
1601
1602 struct smb_t2_req {
1603 struct smb_hdr hdr;
1604 struct trans2_req t2_req;
1605 } __attribute__((packed));
1606
1607 struct trans2_resp {
1608 /* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1609 __le16 TotalParameterCount;
1610 __le16 TotalDataCount;
1611 __u16 Reserved;
1612 __le16 ParameterCount;
1613 __le16 ParameterOffset;
1614 __le16 ParameterDisplacement;
1615 __le16 DataCount;
1616 __le16 DataOffset;
1617 __le16 DataDisplacement;
1618 __u8 SetupCount;
1619 __u8 Reserved1;
1620 /* SetupWords[SetupCount];
1621 __u16 ByteCount;
1622 __u16 Reserved2;*/
1623 /* data area follows */
1624 } __attribute__((packed));
1625
1626 struct smb_t2_rsp {
1627 struct smb_hdr hdr;
1628 struct trans2_resp t2_rsp;
1629 } __attribute__((packed));
1630
1631 /* PathInfo/FileInfo infolevels */
1632 #define SMB_INFO_STANDARD 1
1633 #define SMB_SET_FILE_EA 2
1634 #define SMB_QUERY_FILE_EA_SIZE 2
1635 #define SMB_INFO_QUERY_EAS_FROM_LIST 3
1636 #define SMB_INFO_QUERY_ALL_EAS 4
1637 #define SMB_INFO_IS_NAME_VALID 6
1638 #define SMB_QUERY_FILE_BASIC_INFO 0x101
1639 #define SMB_QUERY_FILE_STANDARD_INFO 0x102
1640 #define SMB_QUERY_FILE_EA_INFO 0x103
1641 #define SMB_QUERY_FILE_NAME_INFO 0x104
1642 #define SMB_QUERY_FILE_ALLOCATION_INFO 0x105
1643 #define SMB_QUERY_FILE_END_OF_FILEINFO 0x106
1644 #define SMB_QUERY_FILE_ALL_INFO 0x107
1645 #define SMB_QUERY_ALT_NAME_INFO 0x108
1646 #define SMB_QUERY_FILE_STREAM_INFO 0x109
1647 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1648 #define SMB_QUERY_FILE_UNIX_BASIC 0x200
1649 #define SMB_QUERY_FILE_UNIX_LINK 0x201
1650 #define SMB_QUERY_POSIX_ACL 0x204
1651 #define SMB_QUERY_XATTR 0x205 /* e.g. system EA name space */
1652 #define SMB_QUERY_ATTR_FLAGS 0x206 /* append,immutable etc. */
1653 #define SMB_QUERY_POSIX_PERMISSION 0x207
1654 #define SMB_QUERY_POSIX_LOCK 0x208
1655 /* #define SMB_POSIX_OPEN 0x209 */
1656 /* #define SMB_POSIX_UNLINK 0x20a */
1657 #define SMB_QUERY_FILE__UNIX_INFO2 0x20b
1658 #define SMB_QUERY_FILE_INTERNAL_INFO 0x3ee
1659 #define SMB_QUERY_FILE_ACCESS_INFO 0x3f0
1660 #define SMB_QUERY_FILE_NAME_INFO2 0x3f1 /* 0x30 bytes */
1661 #define SMB_QUERY_FILE_POSITION_INFO 0x3f6
1662 #define SMB_QUERY_FILE_MODE_INFO 0x3f8
1663 #define SMB_QUERY_FILE_ALGN_INFO 0x3f9
1664
1665
1666 #define SMB_SET_FILE_BASIC_INFO 0x101
1667 #define SMB_SET_FILE_DISPOSITION_INFO 0x102
1668 #define SMB_SET_FILE_ALLOCATION_INFO 0x103
1669 #define SMB_SET_FILE_END_OF_FILE_INFO 0x104
1670 #define SMB_SET_FILE_UNIX_BASIC 0x200
1671 #define SMB_SET_FILE_UNIX_LINK 0x201
1672 #define SMB_SET_FILE_UNIX_HLINK 0x203
1673 #define SMB_SET_POSIX_ACL 0x204
1674 #define SMB_SET_XATTR 0x205
1675 #define SMB_SET_ATTR_FLAGS 0x206 /* append, immutable etc. */
1676 #define SMB_SET_POSIX_LOCK 0x208
1677 #define SMB_POSIX_OPEN 0x209
1678 #define SMB_POSIX_UNLINK 0x20a
1679 #define SMB_SET_FILE_UNIX_INFO2 0x20b
1680 #define SMB_SET_FILE_BASIC_INFO2 0x3ec
1681 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1682 #define SMB_FILE_ALL_INFO2 0x3fa
1683 #define SMB_SET_FILE_ALLOCATION_INFO2 0x3fb
1684 #define SMB_SET_FILE_END_OF_FILE_INFO2 0x3fc
1685 #define SMB_FILE_MOVE_CLUSTER_INFO 0x407
1686 #define SMB_FILE_QUOTA_INFO 0x408
1687 #define SMB_FILE_REPARSEPOINT_INFO 0x409
1688 #define SMB_FILE_MAXIMUM_INFO 0x40d
1689
1690 /* Find File infolevels */
1691 #define SMB_FIND_FILE_INFO_STANDARD 0x001
1692 #define SMB_FIND_FILE_QUERY_EA_SIZE 0x002
1693 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1694 #define SMB_FIND_FILE_DIRECTORY_INFO 0x101
1695 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1696 #define SMB_FIND_FILE_NAMES_INFO 0x103
1697 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1698 #define SMB_FIND_FILE_ID_FULL_DIR_INFO 0x105
1699 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO 0x106
1700 #define SMB_FIND_FILE_UNIX 0x202
1701 #define SMB_FIND_FILE_POSIX_INFO 0x064
1702
1703 typedef struct smb_com_transaction2_qpi_req {
1704 struct smb_hdr hdr; /* wct = 14+ */
1705 __le16 TotalParameterCount;
1706 __le16 TotalDataCount;
1707 __le16 MaxParameterCount;
1708 __le16 MaxDataCount;
1709 __u8 MaxSetupCount;
1710 __u8 Reserved;
1711 __le16 Flags;
1712 __le32 Timeout;
1713 __u16 Reserved2;
1714 __le16 ParameterCount;
1715 __le16 ParameterOffset;
1716 __le16 DataCount;
1717 __le16 DataOffset;
1718 __u8 SetupCount;
1719 __u8 Reserved3;
1720 __le16 SubCommand; /* one setup word */
1721 __le16 ByteCount;
1722 __u8 Pad;
1723 __le16 InformationLevel;
1724 __u32 Reserved4;
1725 char FileName[1];
1726 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1727
1728 typedef struct smb_com_transaction2_qpi_rsp {
1729 struct smb_hdr hdr; /* wct = 10 + SetupCount */
1730 struct trans2_resp t2;
1731 __u16 ByteCount;
1732 __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1733 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1734
1735 typedef struct smb_com_transaction2_spi_req {
1736 struct smb_hdr hdr; /* wct = 15 */
1737 __le16 TotalParameterCount;
1738 __le16 TotalDataCount;
1739 __le16 MaxParameterCount;
1740 __le16 MaxDataCount;
1741 __u8 MaxSetupCount;
1742 __u8 Reserved;
1743 __le16 Flags;
1744 __le32 Timeout;
1745 __u16 Reserved2;
1746 __le16 ParameterCount;
1747 __le16 ParameterOffset;
1748 __le16 DataCount;
1749 __le16 DataOffset;
1750 __u8 SetupCount;
1751 __u8 Reserved3;
1752 __le16 SubCommand; /* one setup word */
1753 __le16 ByteCount;
1754 __u8 Pad;
1755 __u16 Pad1;
1756 __le16 InformationLevel;
1757 __u32 Reserved4;
1758 char FileName[1];
1759 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1760
1761 typedef struct smb_com_transaction2_spi_rsp {
1762 struct smb_hdr hdr; /* wct = 10 + SetupCount */
1763 struct trans2_resp t2;
1764 __u16 ByteCount;
1765 __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1766 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1767
1768 struct set_file_rename {
1769 __le32 overwrite; /* 1 = overwrite dest */
1770 __u32 root_fid; /* zero */
1771 __le32 target_name_len;
1772 char target_name[]; /* Must be unicode */
1773 } __attribute__((packed));
1774
1775 struct smb_com_transaction2_sfi_req {
1776 struct smb_hdr hdr; /* wct = 15 */
1777 __le16 TotalParameterCount;
1778 __le16 TotalDataCount;
1779 __le16 MaxParameterCount;
1780 __le16 MaxDataCount;
1781 __u8 MaxSetupCount;
1782 __u8 Reserved;
1783 __le16 Flags;
1784 __le32 Timeout;
1785 __u16 Reserved2;
1786 __le16 ParameterCount;
1787 __le16 ParameterOffset;
1788 __le16 DataCount;
1789 __le16 DataOffset;
1790 __u8 SetupCount;
1791 __u8 Reserved3;
1792 __le16 SubCommand; /* one setup word */
1793 __le16 ByteCount;
1794 __u8 Pad;
1795 __u16 Pad1;
1796 __u16 Fid;
1797 __le16 InformationLevel;
1798 __u16 Reserved4;
1799 } __attribute__((packed));
1800
1801 struct smb_com_transaction2_sfi_rsp {
1802 struct smb_hdr hdr; /* wct = 10 + SetupCount */
1803 struct trans2_resp t2;
1804 __u16 ByteCount;
1805 __u16 Reserved2; /* parameter word reserved -
1806 present for infolevels > 100 */
1807 } __attribute__((packed));
1808
1809 struct smb_t2_qfi_req {
1810 struct smb_hdr hdr;
1811 struct trans2_req t2;
1812 __u8 Pad;
1813 __u16 Fid;
1814 __le16 InformationLevel;
1815 } __attribute__((packed));
1816
1817 struct smb_t2_qfi_rsp {
1818 struct smb_hdr hdr; /* wct = 10 + SetupCount */
1819 struct trans2_resp t2;
1820 __u16 ByteCount;
1821 __u16 Reserved2; /* parameter word reserved -
1822 present for infolevels > 100 */
1823 } __attribute__((packed));
1824
1825 /*
1826 * Flags on T2 FINDFIRST and FINDNEXT
1827 */
1828 #define CIFS_SEARCH_CLOSE_ALWAYS 0x0001
1829 #define CIFS_SEARCH_CLOSE_AT_END 0x0002
1830 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1831 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1832 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1833
1834 /*
1835 * Size of the resume key on FINDFIRST and FINDNEXT calls
1836 */
1837 #define CIFS_SMB_RESUME_KEY_SIZE 4
1838
1839 typedef struct smb_com_transaction2_ffirst_req {
1840 struct smb_hdr hdr; /* wct = 15 */
1841 __le16 TotalParameterCount;
1842 __le16 TotalDataCount;
1843 __le16 MaxParameterCount;
1844 __le16 MaxDataCount;
1845 __u8 MaxSetupCount;
1846 __u8 Reserved;
1847 __le16 Flags;
1848 __le32 Timeout;
1849 __u16 Reserved2;
1850 __le16 ParameterCount;
1851 __le16 ParameterOffset;
1852 __le16 DataCount;
1853 __le16 DataOffset;
1854 __u8 SetupCount; /* one */
1855 __u8 Reserved3;
1856 __le16 SubCommand; /* TRANS2_FIND_FIRST */
1857 __le16 ByteCount;
1858 __u8 Pad;
1859 __le16 SearchAttributes;
1860 __le16 SearchCount;
1861 __le16 SearchFlags;
1862 __le16 InformationLevel;
1863 __le32 SearchStorageType;
1864 char FileName[1];
1865 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1866
1867 typedef struct smb_com_transaction2_ffirst_rsp {
1868 struct smb_hdr hdr; /* wct = 10 */
1869 struct trans2_resp t2;
1870 __u16 ByteCount;
1871 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1872
1873 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1874 __u16 SearchHandle;
1875 __le16 SearchCount;
1876 __le16 EndofSearch;
1877 __le16 EAErrorOffset;
1878 __le16 LastNameOffset;
1879 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1880
1881 typedef struct smb_com_transaction2_fnext_req {
1882 struct smb_hdr hdr; /* wct = 15 */
1883 __le16 TotalParameterCount;
1884 __le16 TotalDataCount;
1885 __le16 MaxParameterCount;
1886 __le16 MaxDataCount;
1887 __u8 MaxSetupCount;
1888 __u8 Reserved;
1889 __le16 Flags;
1890 __le32 Timeout;
1891 __u16 Reserved2;
1892 __le16 ParameterCount;
1893 __le16 ParameterOffset;
1894 __le16 DataCount;
1895 __le16 DataOffset;
1896 __u8 SetupCount; /* one */
1897 __u8 Reserved3;
1898 __le16 SubCommand; /* TRANS2_FIND_NEXT */
1899 __le16 ByteCount;
1900 __u8 Pad;
1901 __u16 SearchHandle;
1902 __le16 SearchCount;
1903 __le16 InformationLevel;
1904 __u32 ResumeKey;
1905 __le16 SearchFlags;
1906 char ResumeFileName[];
1907 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1908
1909 typedef struct smb_com_transaction2_fnext_rsp {
1910 struct smb_hdr hdr; /* wct = 10 */
1911 struct trans2_resp t2;
1912 __u16 ByteCount;
1913 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1914
1915 typedef struct smb_com_transaction2_fnext_rsp_parms {
1916 __le16 SearchCount;
1917 __le16 EndofSearch;
1918 __le16 EAErrorOffset;
1919 __le16 LastNameOffset;
1920 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1921
1922 /* QFSInfo Levels */
1923 #define SMB_INFO_ALLOCATION 1
1924 #define SMB_INFO_VOLUME 2
1925 #define SMB_QUERY_FS_VOLUME_INFO 0x102
1926 #define SMB_QUERY_FS_SIZE_INFO 0x103
1927 #define SMB_QUERY_FS_DEVICE_INFO 0x104
1928 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1929 #define SMB_QUERY_CIFS_UNIX_INFO 0x200
1930 #define SMB_QUERY_POSIX_FS_INFO 0x201
1931 #define SMB_QUERY_POSIX_WHO_AM_I 0x202
1932 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1933 #define SMB_QUERY_FS_PROXY 0x204 /* WAFS enabled. Returns structure
1934 FILE_SYSTEM__UNIX_INFO to tell
1935 whether new NTIOCTL available
1936 (0xACE) for WAN friendly SMB
1937 operations to be carried */
1938 #define SMB_QUERY_LABEL_INFO 0x3ea
1939 #define SMB_QUERY_FS_QUOTA_INFO 0x3ee
1940 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1941 #define SMB_QUERY_OBJECTID_INFO 0x3f0
1942
1943 typedef struct smb_com_transaction2_qfsi_req {
1944 struct smb_hdr hdr; /* wct = 14+ */
1945 __le16 TotalParameterCount;
1946 __le16 TotalDataCount;
1947 __le16 MaxParameterCount;
1948 __le16 MaxDataCount;
1949 __u8 MaxSetupCount;
1950 __u8 Reserved;
1951 __le16 Flags;
1952 __le32 Timeout;
1953 __u16 Reserved2;
1954 __le16 ParameterCount;
1955 __le16 ParameterOffset;
1956 __le16 DataCount;
1957 __le16 DataOffset;
1958 __u8 SetupCount;
1959 __u8 Reserved3;
1960 __le16 SubCommand; /* one setup word */
1961 __le16 ByteCount;
1962 __u8 Pad;
1963 __le16 InformationLevel;
1964 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1965
1966 typedef struct smb_com_transaction_qfsi_rsp {
1967 struct smb_hdr hdr; /* wct = 10 + SetupCount */
1968 struct trans2_resp t2;
1969 __u16 ByteCount;
1970 __u8 Pad; /* may be three bytes? *//* followed by data area */
1971 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1972
1973 typedef struct whoami_rsp_data { /* Query level 0x202 */
1974 __u32 flags; /* 0 = Authenticated user 1 = GUEST */
1975 __u32 mask; /* which flags bits server understands ie 0x0001 */
1976 __u64 unix_user_id;
1977 __u64 unix_user_gid;
1978 __u32 number_of_supplementary_gids; /* may be zero */
1979 __u32 number_of_sids; /* may be zero */
1980 __u32 length_of_sid_array; /* in bytes - may be zero */
1981 __u32 pad; /* reserved - MBZ */
1982 /* __u64 gid_array[0]; */ /* may be empty */
1983 /* __u8 * psid_list */ /* may be empty */
1984 } __attribute__((packed)) WHOAMI_RSP_DATA;
1985
1986 /* SETFSInfo Levels */
1987 #define SMB_SET_CIFS_UNIX_INFO 0x200
1988 /* level 0x203 is defined above in list of QFS info levels */
1989 /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
1990
1991 /* Level 0x200 request structure follows */
1992 typedef struct smb_com_transaction2_setfsi_req {
1993 struct smb_hdr hdr; /* wct = 15 */
1994 __le16 TotalParameterCount;
1995 __le16 TotalDataCount;
1996 __le16 MaxParameterCount;
1997 __le16 MaxDataCount;
1998 __u8 MaxSetupCount;
1999 __u8 Reserved;
2000 __le16 Flags;
2001 __le32 Timeout;
2002 __u16 Reserved2;
2003 __le16 ParameterCount; /* 4 */
2004 __le16 ParameterOffset;
2005 __le16 DataCount; /* 12 */
2006 __le16 DataOffset;
2007 __u8 SetupCount; /* one */
2008 __u8 Reserved3;
2009 __le16 SubCommand; /* TRANS2_SET_FS_INFORMATION */
2010 __le16 ByteCount;
2011 __u8 Pad;
2012 __u16 FileNum; /* Parameters start. */
2013 __le16 InformationLevel;/* Parameters end. */
2014 __le16 ClientUnixMajor; /* Data start. */
2015 __le16 ClientUnixMinor;
2016 __le64 ClientUnixCap; /* Data end */
2017 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
2018
2019 /* level 0x203 request structure follows */
2020 typedef struct smb_com_transaction2_setfs_enc_req {
2021 struct smb_hdr hdr; /* wct = 15 */
2022 __le16 TotalParameterCount;
2023 __le16 TotalDataCount;
2024 __le16 MaxParameterCount;
2025 __le16 MaxDataCount;
2026 __u8 MaxSetupCount;
2027 __u8 Reserved;
2028 __le16 Flags;
2029 __le32 Timeout;
2030 __u16 Reserved2;
2031 __le16 ParameterCount; /* 4 */
2032 __le16 ParameterOffset;
2033 __le16 DataCount; /* 12 */
2034 __le16 DataOffset;
2035 __u8 SetupCount; /* one */
2036 __u8 Reserved3;
2037 __le16 SubCommand; /* TRANS2_SET_FS_INFORMATION */
2038 __le16 ByteCount;
2039 __u8 Pad;
2040 __u16 Reserved4; /* Parameters start. */
2041 __le16 InformationLevel;/* Parameters end. */
2042 /* NTLMSSP Blob, Data start. */
2043 } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
2044
2045 /* response for setfsinfo levels 0x200 and 0x203 */
2046 typedef struct smb_com_transaction2_setfsi_rsp {
2047 struct smb_hdr hdr; /* wct = 10 */
2048 struct trans2_resp t2;
2049 __u16 ByteCount;
2050 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
2051
2052 typedef struct smb_com_transaction2_get_dfs_refer_req {
2053 struct smb_hdr hdr; /* wct = 15 */
2054 __le16 TotalParameterCount;
2055 __le16 TotalDataCount;
2056 __le16 MaxParameterCount;
2057 __le16 MaxDataCount;
2058 __u8 MaxSetupCount;
2059 __u8 Reserved;
2060 __le16 Flags;
2061 __le32 Timeout;
2062 __u16 Reserved2;
2063 __le16 ParameterCount;
2064 __le16 ParameterOffset;
2065 __le16 DataCount;
2066 __le16 DataOffset;
2067 __u8 SetupCount;
2068 __u8 Reserved3;
2069 __le16 SubCommand; /* one setup word */
2070 __le16 ByteCount;
2071 __u8 Pad[3]; /* Win2K has sent 0x0F01 (max response length
2072 perhaps?) followed by one byte pad - doesn't
2073 seem to matter though */
2074 __le16 MaxReferralLevel;
2075 char RequestFileName[1];
2076 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
2077
2078 #define DFS_VERSION cpu_to_le16(0x0003)
2079
2080 /* DFS server target type */
2081 #define DFS_TYPE_LINK 0x0000 /* also for sysvol targets */
2082 #define DFS_TYPE_ROOT 0x0001
2083
2084 /* Referral Entry Flags */
2085 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
2086 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2087
2088 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2089 __le16 VersionNumber; /* must be 3 or 4 */
2090 __le16 Size;
2091 __le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2092 __le16 ReferralEntryFlags;
2093 __le32 TimeToLive;
2094 __le16 DfsPathOffset;
2095 __le16 DfsAlternatePathOffset;
2096 __le16 NetworkAddressOffset; /* offset of the link target */
2097 __u8 ServiceSiteGuid[16]; /* MBZ, ignored */
2098 } __attribute__((packed)) REFERRAL3;
2099
2100 struct get_dfs_referral_rsp {
2101 __le16 PathConsumed;
2102 __le16 NumberOfReferrals;
2103 __le32 DFSFlags;
2104 REFERRAL3 referrals[1]; /* array of level 3 dfs_referral structures */
2105 /* followed by the strings pointed to by the referral structures */
2106 } __packed;
2107
2108 typedef struct smb_com_transaction_get_dfs_refer_rsp {
2109 struct smb_hdr hdr; /* wct = 10 */
2110 struct trans2_resp t2;
2111 __u16 ByteCount;
2112 __u8 Pad;
2113 struct get_dfs_referral_rsp dfs_data;
2114 } __packed TRANSACTION2_GET_DFS_REFER_RSP;
2115
2116 /* DFS Flags */
2117 #define DFSREF_REFERRAL_SERVER 0x00000001 /* all targets are DFS roots */
2118 #define DFSREF_STORAGE_SERVER 0x00000002 /* no further ref requests needed */
2119 #define DFSREF_TARGET_FAILBACK 0x00000004 /* only for DFS referral version 4 */
2120
2121 /*
2122 ************************************************************************
2123 * All structs for everything above the SMB PDUs themselves
2124 * (such as the T2 level specific data) go here
2125 ************************************************************************
2126 */
2127
2128 /*
2129 * Information on a server
2130 */
2131
2132 struct serverInfo {
2133 char name[16];
2134 unsigned char versionMajor;
2135 unsigned char versionMinor;
2136 unsigned long type;
2137 unsigned int commentOffset;
2138 } __attribute__((packed));
2139
2140 /*
2141 * The following structure is the format of the data returned on a NetShareEnum
2142 * with level "90" (x5A)
2143 */
2144
2145 struct shareInfo {
2146 char shareName[13];
2147 char pad;
2148 unsigned short type;
2149 unsigned int commentOffset;
2150 } __attribute__((packed));
2151
2152 struct aliasInfo {
2153 char aliasName[9];
2154 char pad;
2155 unsigned int commentOffset;
2156 unsigned char type[2];
2157 } __attribute__((packed));
2158
2159 struct aliasInfo92 {
2160 int aliasNameOffset;
2161 int serverNameOffset;
2162 int shareNameOffset;
2163 } __attribute__((packed));
2164
2165 typedef struct {
2166 __le64 TotalAllocationUnits;
2167 __le64 FreeAllocationUnits;
2168 __le32 SectorsPerAllocationUnit;
2169 __le32 BytesPerSector;
2170 } __attribute__((packed)) FILE_SYSTEM_INFO; /* size info, level 0x103 */
2171
2172 typedef struct {
2173 __le32 fsid;
2174 __le32 SectorsPerAllocationUnit;
2175 __le32 TotalAllocationUnits;
2176 __le32 FreeAllocationUnits;
2177 __le16 BytesPerSector;
2178 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2179
2180 typedef struct {
2181 __le16 MajorVersionNumber;
2182 __le16 MinorVersionNumber;
2183 __le64 Capability;
2184 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2185
2186 /* Version numbers for CIFS UNIX major and minor. */
2187 #define CIFS_UNIX_MAJOR_VERSION 1
2188 #define CIFS_UNIX_MINOR_VERSION 0
2189
2190 /* Linux/Unix extensions capability flags */
2191 #define CIFS_UNIX_FCNTL_CAP 0x00000001 /* support for fcntl locks */
2192 #define CIFS_UNIX_POSIX_ACL_CAP 0x00000002 /* support getfacl/setfacl */
2193 #define CIFS_UNIX_XATTR_CAP 0x00000004 /* support new namespace */
2194 #define CIFS_UNIX_EXTATTR_CAP 0x00000008 /* support chattr/chflag */
2195 #define CIFS_UNIX_POSIX_PATHNAMES_CAP 0x00000010 /* Allow POSIX path chars */
2196 #define CIFS_UNIX_POSIX_PATH_OPS_CAP 0x00000020 /* Allow new POSIX path based
2197 calls including posix open
2198 and posix unlink */
2199 #define CIFS_UNIX_LARGE_READ_CAP 0x00000040 /* support reads >128K (up
2200 to 0xFFFF00 */
2201 #define CIFS_UNIX_LARGE_WRITE_CAP 0x00000080
2202 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2203 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP 0x00000200 /* must do */
2204 #define CIFS_UNIX_PROXY_CAP 0x00000400 /* Proxy cap: 0xACE ioctl and
2205 QFS PROXY call */
2206 #ifdef CONFIG_CIFS_POSIX
2207 /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
2208 LockingX instead of posix locking call on unix sess (and we do not expect
2209 LockingX to use different (ie Windows) semantics than posix locking on
2210 the same session (if WINE needs to do this later, we can add this cap
2211 back in later */
2212 /* #define CIFS_UNIX_CAP_MASK 0x000000fb */
2213 #define CIFS_UNIX_CAP_MASK 0x000003db
2214 #else
2215 #define CIFS_UNIX_CAP_MASK 0x00000013
2216 #endif /* CONFIG_CIFS_POSIX */
2217
2218
2219 #define CIFS_POSIX_EXTENSIONS 0x00000010 /* support for new QFSInfo */
2220
2221 typedef struct {
2222 /* For undefined recommended transfer size return -1 in that field */
2223 __le32 OptimalTransferSize; /* bsize on some os, iosize on other os */
2224 __le32 BlockSize;
2225 /* The next three fields are in terms of the block size.
2226 (above). If block size is unknown, 4096 would be a
2227 reasonable block size for a server to report.
2228 Note that returning the blocks/blocksavail removes need
2229 to make a second call (to QFSInfo level 0x103 to get this info.
2230 UserBlockAvail is typically less than or equal to BlocksAvail,
2231 if no distinction is made return the same value in each */
2232 __le64 TotalBlocks;
2233 __le64 BlocksAvail; /* bfree */
2234 __le64 UserBlocksAvail; /* bavail */
2235 /* For undefined Node fields or FSID return -1 */
2236 __le64 TotalFileNodes;
2237 __le64 FreeFileNodes;
2238 __le64 FileSysIdentifier; /* fsid */
2239 /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2240 /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */
2241 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2242
2243 /* DeviceType Flags */
2244 #define FILE_DEVICE_CD_ROM 0x00000002
2245 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM 0x00000003
2246 #define FILE_DEVICE_DFS 0x00000006
2247 #define FILE_DEVICE_DISK 0x00000007
2248 #define FILE_DEVICE_DISK_FILE_SYSTEM 0x00000008
2249 #define FILE_DEVICE_FILE_SYSTEM 0x00000009
2250 #define FILE_DEVICE_NAMED_PIPE 0x00000011
2251 #define FILE_DEVICE_NETWORK 0x00000012
2252 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2253 #define FILE_DEVICE_NULL 0x00000015
2254 #define FILE_DEVICE_PARALLEL_PORT 0x00000016
2255 #define FILE_DEVICE_PRINTER 0x00000018
2256 #define FILE_DEVICE_SERIAL_PORT 0x0000001b
2257 #define FILE_DEVICE_STREAMS 0x0000001e
2258 #define FILE_DEVICE_TAPE 0x0000001f
2259 #define FILE_DEVICE_TAPE_FILE_SYSTEM 0x00000020
2260 #define FILE_DEVICE_VIRTUAL_DISK 0x00000024
2261 #define FILE_DEVICE_NETWORK_REDIRECTOR 0x00000028
2262
2263 /* Device Characteristics */
2264 #define FILE_REMOVABLE_MEDIA 0x00000001
2265 #define FILE_READ_ONLY_DEVICE 0x00000002
2266 #define FILE_FLOPPY_DISKETTE 0x00000004
2267 #define FILE_WRITE_ONCE_MEDIA 0x00000008
2268 #define FILE_REMOTE_DEVICE 0x00000010
2269 #define FILE_DEVICE_IS_MOUNTED 0x00000020
2270 #define FILE_VIRTUAL_VOLUME 0x00000040
2271 #define FILE_DEVICE_SECURE_OPEN 0x00000100
2272 #define FILE_CHARACTERISTIC_TS_DEVICE 0x00001000
2273 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE 0x00002000
2274 #define FILE_PORTABLE_DEVICE 0x00004000
2275 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
2276
2277 typedef struct {
2278 __le32 DeviceType;
2279 __le32 DeviceCharacteristics;
2280 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2281
2282 /* minimum includes first three fields, and empty FS Name */
2283 #define MIN_FS_ATTR_INFO_SIZE 12
2284
2285
2286 /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
2287 #define FILE_SUPPORTS_SPARSE_VDL 0x10000000 /* faster nonsparse extend */
2288 #define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */
2289 #define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000
2290 #define FILE_SUPPORTS_USN_JOURNAL 0x02000000
2291 #define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
2292 #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
2293 #define FILE_SUPPORTS_HARD_LINKS 0x00400000
2294 #define FILE_SUPPORTS_TRANSACTIONS 0x00200000
2295 #define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
2296 #define FILE_READ_ONLY_VOLUME 0x00080000
2297 #define FILE_NAMED_STREAMS 0x00040000
2298 #define FILE_SUPPORTS_ENCRYPTION 0x00020000
2299 #define FILE_SUPPORTS_OBJECT_IDS 0x00010000
2300 #define FILE_VOLUME_IS_COMPRESSED 0x00008000
2301 #define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100
2302 #define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
2303 #define FILE_SUPPORTS_SPARSE_FILES 0x00000040
2304 #define FILE_VOLUME_QUOTAS 0x00000020
2305 #define FILE_FILE_COMPRESSION 0x00000010
2306 #define FILE_PERSISTENT_ACLS 0x00000008
2307 #define FILE_UNICODE_ON_DISK 0x00000004
2308 #define FILE_CASE_PRESERVED_NAMES 0x00000002
2309 #define FILE_CASE_SENSITIVE_SEARCH 0x00000001
2310 typedef struct {
2311 __le32 Attributes;
2312 __le32 MaxPathNameComponentLength;
2313 __le32 FileSystemNameLen;
2314 char FileSystemName[52]; /* do not have to save this - get subset? */
2315 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2316
2317 /******************************************************************************/
2318 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2319 /******************************************************************************/
2320 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2321 __le64 CreationTime;
2322 __le64 LastAccessTime;
2323 __le64 LastWriteTime;
2324 __le64 ChangeTime;
2325 __le32 Attributes;
2326 __u32 Pad1;
2327 __le64 AllocationSize;
2328 __le64 EndOfFile; /* size ie offset to first free byte in file */
2329 __le32 NumberOfLinks; /* hard links */
2330 __u8 DeletePending;
2331 __u8 Directory;
2332 __u16 Pad2;
2333 __le64 IndexNumber;
2334 __le32 EASize;
2335 __le32 AccessFlags;
2336 __u64 IndexNumber1;
2337 __le64 CurrentByteOffset;
2338 __le32 Mode;
2339 __le32 AlignmentRequirement;
2340 __le32 FileNameLength;
2341 char FileName[1];
2342 } __attribute__((packed)) FILE_ALL_INFO; /* level 0x107 QPathInfo */
2343
2344 typedef struct {
2345 __le64 AllocationSize;
2346 __le64 EndOfFile; /* size ie offset to first free byte in file */
2347 __le32 NumberOfLinks; /* hard links */
2348 __u8 DeletePending;
2349 __u8 Directory;
2350 __u16 Pad;
2351 } __attribute__((packed)) FILE_STANDARD_INFO; /* level 0x102 QPathInfo */
2352
2353
2354 /* defines for enumerating possible values of the Unix type field below */
2355 #define UNIX_FILE 0
2356 #define UNIX_DIR 1
2357 #define UNIX_SYMLINK 2
2358 #define UNIX_CHARDEV 3
2359 #define UNIX_BLOCKDEV 4
2360 #define UNIX_FIFO 5
2361 #define UNIX_SOCKET 6
2362 typedef struct {
2363 __le64 EndOfFile;
2364 __le64 NumOfBytes;
2365 __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2366 __le64 LastAccessTime;
2367 __le64 LastModificationTime;
2368 __le64 Uid;
2369 __le64 Gid;
2370 __le32 Type;
2371 __le64 DevMajor;
2372 __le64 DevMinor;
2373 __le64 UniqueId;
2374 __le64 Permissions;
2375 __le64 Nlinks;
2376 } __attribute__((packed)) FILE_UNIX_BASIC_INFO; /* level 0x200 QPathInfo */
2377
2378 typedef struct {
2379 char LinkDest[1];
2380 } __attribute__((packed)) FILE_UNIX_LINK_INFO; /* level 0x201 QPathInfo */
2381
2382 /* The following three structures are needed only for
2383 setting time to NT4 and some older servers via
2384 the primitive DOS time format */
2385 typedef struct {
2386 __u16 Day:5;
2387 __u16 Month:4;
2388 __u16 Year:7;
2389 } __attribute__((packed)) SMB_DATE;
2390
2391 typedef struct {
2392 __u16 TwoSeconds:5;
2393 __u16 Minutes:6;
2394 __u16 Hours:5;
2395 } __attribute__((packed)) SMB_TIME;
2396
2397 typedef struct {
2398 __le16 CreationDate; /* SMB Date see above */
2399 __le16 CreationTime; /* SMB Time */
2400 __le16 LastAccessDate;
2401 __le16 LastAccessTime;
2402 __le16 LastWriteDate;
2403 __le16 LastWriteTime;
2404 __le32 DataSize; /* File Size (EOF) */
2405 __le32 AllocationSize;
2406 __le16 Attributes; /* verify not u32 */
2407 __le32 EASize;
2408 } __attribute__((packed)) FILE_INFO_STANDARD; /* level 1 SetPath/FileInfo */
2409
2410 typedef struct {
2411 __le64 CreationTime;
2412 __le64 LastAccessTime;
2413 __le64 LastWriteTime;
2414 __le64 ChangeTime;
2415 __le32 Attributes;
2416 __u32 Pad;
2417 } __attribute__((packed)) FILE_BASIC_INFO; /* size info, level 0x101 */
2418
2419 struct file_allocation_info {
2420 __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2421 } __attribute__((packed)); /* size used on disk, for level 0x103 for set,
2422 0x105 for query */
2423
2424 struct file_end_of_file_info {
2425 __le64 FileSize; /* offset to end of file */
2426 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2427
2428 struct file_alt_name_info {
2429 __u8 alt_name[1];
2430 } __attribute__((packed)); /* level 0x0108 */
2431
2432 struct file_stream_info {
2433 __le32 number_of_streams; /* BB check sizes and verify location */
2434 /* followed by info on streams themselves
2435 u64 size;
2436 u64 allocation_size
2437 stream info */
2438 }; /* level 0x109 */
2439
2440 struct file_compression_info {
2441 __le64 compressed_size;
2442 __le16 format;
2443 __u8 unit_shift;
2444 __u8 ch_shift;
2445 __u8 cl_shift;
2446 __u8 pad[3];
2447 } __attribute__((packed)); /* level 0x10b */
2448
2449 /* POSIX ACL set/query path info structures */
2450 #define CIFS_ACL_VERSION 1
2451 struct cifs_posix_ace { /* access control entry (ACE) */
2452 __u8 cifs_e_tag;
2453 __u8 cifs_e_perm;
2454 __le64 cifs_uid; /* or gid */
2455 } __attribute__((packed));
2456
2457 struct cifs_posix_acl { /* access conrol list (ACL) */
2458 __le16 version;
2459 __le16 access_entry_count; /* access ACL - count of entries */
2460 __le16 default_entry_count; /* default ACL - count of entries */
2461 struct cifs_posix_ace ace_array[];
2462 /* followed by
2463 struct cifs_posix_ace default_ace_arraay[] */
2464 } __attribute__((packed)); /* level 0x204 */
2465
2466 /* types of access control entries already defined in posix_acl.h */
2467 /* #define CIFS_POSIX_ACL_USER_OBJ 0x01
2468 #define CIFS_POSIX_ACL_USER 0x02
2469 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2470 #define CIFS_POSIX_ACL_GROUP 0x08
2471 #define CIFS_POSIX_ACL_MASK 0x10
2472 #define CIFS_POSIX_ACL_OTHER 0x20 */
2473
2474 /* types of perms */
2475 /* #define CIFS_POSIX_ACL_EXECUTE 0x01
2476 #define CIFS_POSIX_ACL_WRITE 0x02
2477 #define CIFS_POSIX_ACL_READ 0x04 */
2478
2479 /* end of POSIX ACL definitions */
2480
2481 /* POSIX Open Flags */
2482 #define SMB_O_RDONLY 0x1
2483 #define SMB_O_WRONLY 0x2
2484 #define SMB_O_RDWR 0x4
2485 #define SMB_O_CREAT 0x10
2486 #define SMB_O_EXCL 0x20
2487 #define SMB_O_TRUNC 0x40
2488 #define SMB_O_APPEND 0x80
2489 #define SMB_O_SYNC 0x100
2490 #define SMB_O_DIRECTORY 0x200
2491 #define SMB_O_NOFOLLOW 0x400
2492 #define SMB_O_DIRECT 0x800
2493
2494 typedef struct {
2495 __le32 OpenFlags; /* same as NT CreateX */
2496 __le32 PosixOpenFlags;
2497 __le64 Permissions;
2498 __le16 Level; /* reply level requested (see QPathInfo levels) */
2499 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2500
2501 typedef struct {
2502 __le16 OplockFlags;
2503 __u16 Fid;
2504 __le32 CreateAction;
2505 __le16 ReturnedLevel;
2506 __le16 Pad;
2507 /* struct following varies based on requested level */
2508 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2509
2510 #define SMB_POSIX_UNLINK_FILE_TARGET 0
2511 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET 1
2512
2513 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2514 __le16 type;
2515 } __attribute__((packed));
2516
2517 struct file_internal_info {
2518 __le64 UniqueId; /* inode number */
2519 } __attribute__((packed)); /* level 0x3ee */
2520
2521 struct file_mode_info {
2522 __le32 Mode;
2523 } __attribute__((packed)); /* level 0x3f8 */
2524
2525 struct file_attrib_tag {
2526 __le32 Attribute;
2527 __le32 ReparseTag;
2528 } __attribute__((packed)); /* level 0x40b */
2529
2530
2531 /********************************************************/
2532 /* FindFirst/FindNext transact2 data buffer formats */
2533 /********************************************************/
2534
2535 typedef struct {
2536 __le32 NextEntryOffset;
2537 __u32 ResumeKey; /* as with FileIndex - no need to convert */
2538 FILE_UNIX_BASIC_INFO basic;
2539 char FileName[1];
2540 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2541
2542 typedef struct {
2543 __le32 NextEntryOffset;
2544 __u32 FileIndex;
2545 __le64 CreationTime;
2546 __le64 LastAccessTime;
2547 __le64 LastWriteTime;
2548 __le64 ChangeTime;
2549 __le64 EndOfFile;
2550 __le64 AllocationSize;
2551 __le32 ExtFileAttributes;
2552 __le32 FileNameLength;
2553 char FileName[1];
2554 } __attribute__((packed)) FILE_DIRECTORY_INFO; /* level 0x101 FF resp data */
2555
2556 typedef struct {
2557 __le32 NextEntryOffset;
2558 __u32 FileIndex;
2559 __le64 CreationTime;
2560 __le64 LastAccessTime;
2561 __le64 LastWriteTime;
2562 __le64 ChangeTime;
2563 __le64 EndOfFile;
2564 __le64 AllocationSize;
2565 __le32 ExtFileAttributes;
2566 __le32 FileNameLength;
2567 __le32 EaSize; /* length of the xattrs */
2568 char FileName[1];
2569 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2570
2571 typedef struct {
2572 __le32 NextEntryOffset;
2573 __u32 FileIndex;
2574 __le64 CreationTime;
2575 __le64 LastAccessTime;
2576 __le64 LastWriteTime;
2577 __le64 ChangeTime;
2578 __le64 EndOfFile;
2579 __le64 AllocationSize;
2580 __le32 ExtFileAttributes;
2581 __le32 FileNameLength;
2582 __le32 EaSize; /* EA size */
2583 __le32 Reserved;
2584 __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2585 char FileName[1];
2586 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2587
2588 typedef struct {
2589 __le32 NextEntryOffset;
2590 __u32 FileIndex;
2591 __le64 CreationTime;
2592 __le64 LastAccessTime;
2593 __le64 LastWriteTime;
2594 __le64 ChangeTime;
2595 __le64 EndOfFile;
2596 __le64 AllocationSize;
2597 __le32 ExtFileAttributes;
2598 __le32 FileNameLength;
2599 __le32 EaSize; /* length of the xattrs */
2600 __u8 ShortNameLength;
2601 __u8 Reserved;
2602 __u8 ShortName[12];
2603 char FileName[1];
2604 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2605
2606 typedef struct {
2607 __u32 ResumeKey;
2608 __le16 CreationDate; /* SMB Date */
2609 __le16 CreationTime; /* SMB Time */
2610 __le16 LastAccessDate;
2611 __le16 LastAccessTime;
2612 __le16 LastWriteDate;
2613 __le16 LastWriteTime;
2614 __le32 DataSize; /* File Size (EOF) */
2615 __le32 AllocationSize;
2616 __le16 Attributes; /* verify not u32 */
2617 __u8 FileNameLength;
2618 char FileName[1];
2619 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2620
2621
2622 struct win_dev {
2623 unsigned char type[8]; /* IntxCHR or IntxBLK */
2624 __le64 major;
2625 __le64 minor;
2626 } __attribute__((packed));
2627
2628 struct gea {
2629 unsigned char name_len;
2630 char name[1];
2631 } __attribute__((packed));
2632
2633 struct gealist {
2634 unsigned long list_len;
2635 struct gea list[1];
2636 } __attribute__((packed));
2637
2638 struct fea {
2639 unsigned char EA_flags;
2640 __u8 name_len;
2641 __le16 value_len;
2642 char name[1];
2643 /* optionally followed by value */
2644 } __attribute__((packed));
2645 /* flags for _FEA.fEA */
2646 #define FEA_NEEDEA 0x80 /* need EA bit */
2647
2648 struct fealist {
2649 __le32 list_len;
2650 struct fea list[1];
2651 } __attribute__((packed));
2652
2653 /* used to hold an arbitrary blob of data */
2654 struct data_blob {
2655 __u8 *data;
2656 size_t length;
2657 void (*free) (struct data_blob *data_blob);
2658 } __attribute__((packed));
2659
2660
2661 #ifdef CONFIG_CIFS_POSIX
2662 /*
2663 For better POSIX semantics from Linux client, (even better
2664 than the existing CIFS Unix Extensions) we need updated PDUs for:
2665
2666 1) PosixCreateX - to set and return the mode, inode#, device info and
2667 perhaps add a CreateDevice - to create Pipes and other special .inodes
2668 Also note POSIX open flags
2669 2) Close - to return the last write time to do cache across close
2670 more safely
2671 3) FindFirst return unique inode number - what about resume key, two
2672 forms short (matches readdir) and full (enough info to cache inodes)
2673 4) Mkdir - set mode
2674
2675 And under consideration:
2676 5) FindClose2 (return nanosecond timestamp ??)
2677 6) Use nanosecond timestamps throughout all time fields if
2678 corresponding attribute flag is set
2679 7) sendfile - handle based copy
2680
2681 what about fixing 64 bit alignment
2682
2683 There are also various legacy SMB/CIFS requests used as is
2684
2685 From existing Lanman and NTLM dialects:
2686 --------------------------------------
2687 NEGOTIATE
2688 SESSION_SETUP_ANDX (BB which?)
2689 TREE_CONNECT_ANDX (BB which wct?)
2690 TREE_DISCONNECT (BB add volume timestamp on response)
2691 LOGOFF_ANDX
2692 DELETE (note delete open file behavior)
2693 DELETE_DIRECTORY
2694 READ_AND_X
2695 WRITE_AND_X
2696 LOCKING_AND_X (note posix lock semantics)
2697 RENAME (note rename across dirs and open file rename posix behaviors)
2698 NT_RENAME (for hardlinks) Is this good enough for all features?
2699 FIND_CLOSE2
2700 TRANSACTION2 (18 cases)
2701 SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2702 (BB verify that never need to set allocation size)
2703 SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2704 Unix ext?)
2705
2706 COPY (note support for copy across directories) - FUTURE, OPTIONAL
2707 setting/getting OS/2 EAs - FUTURE (BB can this handle
2708 setting Linux xattrs perfectly) - OPTIONAL
2709 dnotify - FUTURE, OPTIONAL
2710 quota - FUTURE, OPTIONAL
2711
2712 Note that various requests implemented for NT interop such as
2713 NT_TRANSACT (IOCTL) QueryReparseInfo
2714 are unneeded to servers compliant with the CIFS POSIX extensions
2715
2716 From CIFS Unix Extensions:
2717 -------------------------
2718 T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2719 T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2720 T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2721 T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) BB check for missing
2722 inode fields
2723 Actually a need QUERY_FILE_UNIX_INFO
2724 since has inode num
2725 BB what about a) blksize/blkbits/blocks
2726 b) i_version
2727 c) i_rdev
2728 d) notify mask?
2729 e) generation
2730 f) size_seqcount
2731 T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2732 TRANS2_GET_DFS_REFERRAL - OPTIONAL but recommended
2733 T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2734 */
2735
2736 /* xsymlink is a symlink format (used by MacOS) that can be used
2737 to save symlink info in a regular file when
2738 mounted to operating systems that do not
2739 support the cifs Unix extensions or EAs (for xattr
2740 based symlinks). For such a file to be recognized
2741 as containing symlink data:
2742
2743 1) file size must be 1067,
2744 2) signature must begin file data,
2745 3) length field must be set to ASCII representation
2746 of a number which is less than or equal to 1024,
2747 4) md5 must match that of the path data */
2748
2749 struct xsymlink {
2750 /* 1067 bytes */
2751 char signature[4]; /* XSym */ /* not null terminated */
2752 char cr0; /* \n */
2753 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2754 char length[4];
2755 char cr1; /* \n */
2756 /* md5 of valid subset of path ie path[0] through path[length-1] */
2757 __u8 md5[32];
2758 char cr2; /* \n */
2759 /* if room left, then end with \n then 0x20s by convention but not required */
2760 char path[1024];
2761 } __attribute__((packed));
2762
2763 typedef struct file_xattr_info {
2764 /* BB do we need another field for flags? BB */
2765 __u32 xattr_name_len;
2766 __u32 xattr_value_len;
2767 char xattr_name[];
2768 /* followed by xattr_value[xattr_value_len], no pad */
2769 } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2770 level 0x205 */
2771
2772 /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
2773
2774 typedef struct file_chattr_info {
2775 __le64 mask; /* list of all possible attribute bits */
2776 __le64 mode; /* list of actual attribute bits on this inode */
2777 } __attribute__((packed)) FILE_CHATTR_INFO; /* ext attributes
2778 (chattr, chflags) level 0x206 */
2779 #endif /* POSIX */
2780 #endif /* _CIFSPDU_H */
2781