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1  /*
2   *   fs/cifs/cifspdu.h
3   *
4   *   Copyright (c) International Business Machines  Corp., 2002,2009
5   *   Author(s): Steve French (sfrench@us.ibm.com)
6   *
7   *   This library is free software; you can redistribute it and/or modify
8   *   it under the terms of the GNU Lesser General Public License as published
9   *   by the Free Software Foundation; either version 2.1 of the License, or
10   *   (at your option) any later version.
11   *
12   *   This library is distributed in the hope that it will be useful,
13   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
15   *   the GNU Lesser General Public License for more details.
16   *
17   *   You should have received a copy of the GNU Lesser General Public License
18   *   along with this library; if not, write to the Free Software
19   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20   */
21  
22  #ifndef _CIFSPDU_H
23  #define _CIFSPDU_H
24  
25  #include <net/sock.h>
26  #include <asm/unaligned.h>
27  #include "smbfsctl.h"
28  
29  #ifdef CONFIG_CIFS_WEAK_PW_HASH
30  #define LANMAN_PROT 0
31  #define LANMAN2_PROT 1
32  #define CIFS_PROT   2
33  #else
34  #define CIFS_PROT   0
35  #endif
36  #define POSIX_PROT  (CIFS_PROT+1)
37  #define BAD_PROT 0xFFFF
38  
39  /* SMB command codes:
40   * Note some commands have minimal (wct=0,bcc=0), or uninteresting, responses
41   * (ie which include no useful data other than the SMB error code itself).
42   * This can allow us to avoid response buffer allocations and copy in some cases
43   */
44  #define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
45  #define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
46  #define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
47  #define SMB_COM_FLUSH                 0x05 /* triv req/rsp */
48  #define SMB_COM_DELETE                0x06 /* trivial response */
49  #define SMB_COM_RENAME                0x07 /* trivial response */
50  #define SMB_COM_QUERY_INFORMATION     0x08 /* aka getattr */
51  #define SMB_COM_SETATTR               0x09 /* trivial response */
52  #define SMB_COM_LOCKING_ANDX          0x24 /* trivial response */
53  #define SMB_COM_COPY                  0x29 /* trivial rsp, fail filename ignrd*/
54  #define SMB_COM_ECHO                  0x2B /* echo request */
55  #define SMB_COM_OPEN_ANDX             0x2D /* Legacy open for old servers */
56  #define SMB_COM_READ_ANDX             0x2E
57  #define SMB_COM_WRITE_ANDX            0x2F
58  #define SMB_COM_TRANSACTION2          0x32
59  #define SMB_COM_TRANSACTION2_SECONDARY 0x33
60  #define SMB_COM_FIND_CLOSE2           0x34 /* trivial response */
61  #define SMB_COM_TREE_DISCONNECT       0x71 /* trivial response */
62  #define SMB_COM_NEGOTIATE             0x72
63  #define SMB_COM_SESSION_SETUP_ANDX    0x73
64  #define SMB_COM_LOGOFF_ANDX           0x74 /* trivial response */
65  #define SMB_COM_TREE_CONNECT_ANDX     0x75
66  #define SMB_COM_NT_TRANSACT           0xA0
67  #define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
68  #define SMB_COM_NT_CREATE_ANDX        0xA2
69  #define SMB_COM_NT_CANCEL             0xA4 /* no response */
70  #define SMB_COM_NT_RENAME             0xA5 /* trivial response */
71  
72  /* Transact2 subcommand codes */
73  #define TRANS2_OPEN                   0x00
74  #define TRANS2_FIND_FIRST             0x01
75  #define TRANS2_FIND_NEXT              0x02
76  #define TRANS2_QUERY_FS_INFORMATION   0x03
77  #define TRANS2_SET_FS_INFORMATION     0x04
78  #define TRANS2_QUERY_PATH_INFORMATION 0x05
79  #define TRANS2_SET_PATH_INFORMATION   0x06
80  #define TRANS2_QUERY_FILE_INFORMATION 0x07
81  #define TRANS2_SET_FILE_INFORMATION   0x08
82  #define TRANS2_GET_DFS_REFERRAL       0x10
83  #define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
84  
85  /* SMB Transact (Named Pipe) subcommand codes */
86  #define TRANS_SET_NMPIPE_STATE      0x0001
87  #define TRANS_RAW_READ_NMPIPE       0x0011
88  #define TRANS_QUERY_NMPIPE_STATE    0x0021
89  #define TRANS_QUERY_NMPIPE_INFO     0x0022
90  #define TRANS_PEEK_NMPIPE           0x0023
91  #define TRANS_TRANSACT_NMPIPE       0x0026
92  #define TRANS_RAW_WRITE_NMPIPE      0x0031
93  #define TRANS_READ_NMPIPE           0x0036
94  #define TRANS_WRITE_NMPIPE          0x0037
95  #define TRANS_WAIT_NMPIPE           0x0053
96  #define TRANS_CALL_NMPIPE           0x0054
97  
98  /* NT Transact subcommand codes */
99  #define NT_TRANSACT_CREATE            0x01
100  #define NT_TRANSACT_IOCTL             0x02
101  #define NT_TRANSACT_SET_SECURITY_DESC 0x03
102  #define NT_TRANSACT_NOTIFY_CHANGE     0x04
103  #define NT_TRANSACT_RENAME            0x05
104  #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
105  #define NT_TRANSACT_GET_USER_QUOTA    0x07
106  #define NT_TRANSACT_SET_USER_QUOTA    0x08
107  
108  #define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
109  /* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */
110  /* among the requests (NTCreateX response is bigger with wct of 34) */
111  #define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */
112  #define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */
113  
114  /* internal cifs vfs structures */
115  /*****************************************************************
116   * All constants go here
117   *****************************************************************
118   */
119  
120  /*
121   * Starting value for maximum SMB size negotiation
122   */
123  #define CIFS_MAX_MSGSIZE (4*4096)
124  
125  /*
126   * Size of encrypted user password in bytes
127   */
128  #define CIFS_ENCPWD_SIZE (16)
129  
130  /*
131   * Size of the crypto key returned on the negotiate SMB in bytes
132   */
133  #define CIFS_CRYPTO_KEY_SIZE (8)
134  
135  /*
136   * Size of the ntlm client response
137   */
138  #define CIFS_AUTH_RESP_SIZE (24)
139  
140  /*
141   * Size of the session key (crypto key encrypted with the password
142   */
143  #define CIFS_SESS_KEY_SIZE (16)
144  
145  /*
146   * Size of the smb3 signing key
147   */
148  #define SMB3_SIGN_KEY_SIZE (16)
149  
150  #define CIFS_CLIENT_CHALLENGE_SIZE (8)
151  #define CIFS_SERVER_CHALLENGE_SIZE (8)
152  #define CIFS_HMAC_MD5_HASH_SIZE (16)
153  #define CIFS_CPHTXT_SIZE (16)
154  #define CIFS_NTHASH_SIZE (16)
155  
156  /*
157   * Maximum user name length
158   */
159  #define CIFS_UNLEN (20)
160  
161  /*
162   * Flags on SMB open
163   */
164  #define SMBOPEN_WRITE_THROUGH 0x4000
165  #define SMBOPEN_DENY_ALL      0x0010
166  #define SMBOPEN_DENY_WRITE    0x0020
167  #define SMBOPEN_DENY_READ     0x0030
168  #define SMBOPEN_DENY_NONE     0x0040
169  #define SMBOPEN_READ          0x0000
170  #define SMBOPEN_WRITE         0x0001
171  #define SMBOPEN_READWRITE     0x0002
172  #define SMBOPEN_EXECUTE       0x0003
173  
174  #define SMBOPEN_OCREATE       0x0010
175  #define SMBOPEN_OTRUNC        0x0002
176  #define SMBOPEN_OAPPEND       0x0001
177  
178  /*
179   * SMB flag definitions
180   */
181  #define SMBFLG_EXTD_LOCK 0x01	/* server supports lock-read write-unlock smb */
182  #define SMBFLG_RCV_POSTED 0x02	/* obsolete */
183  #define SMBFLG_RSVD 0x04
184  #define SMBFLG_CASELESS 0x08	/* all pathnames treated as caseless (off
185  				implies case sensitive file handling request) */
186  #define SMBFLG_CANONICAL_PATH_FORMAT 0x10	/* obsolete */
187  #define SMBFLG_OLD_OPLOCK 0x20	/* obsolete */
188  #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40	/* obsolete */
189  #define SMBFLG_RESPONSE 0x80	/* this PDU is a response from server */
190  
191  /*
192   * SMB flag2 definitions
193   */
194  #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1)	/* can send long (non-8.3)
195  						   path names in response */
196  #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
197  #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
198  #define SMBFLG2_COMPRESSED (8)
199  #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
200  #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
201  #define SMBFLG2_REPARSE_PATH (0x400)
202  #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
203  #define SMBFLG2_DFS cpu_to_le16(0x1000)
204  #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
205  #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
206  #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
207  
208  /*
209   * These are the file access permission bits defined in CIFS for the
210   * NTCreateAndX as well as the level 0x107
211   * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
212   * responds with the AccessFlags.
213   * The AccessFlags specifies the access permissions a caller has to the
214   * file and can have any suitable combination of the following values:
215   */
216  
217  #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
218  #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
219  #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
220  #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
221  					  /* with the file can be read        */
222  #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
223  					  /* with the file can be written     */
224  #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
225  					  /* the file using system paging I/O */
226  #define FILE_DELETE_CHILD     0x00000040
227  #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
228  					  /* file can be read                 */
229  #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
230  					  /* file can be written              */
231  #define DELETE                0x00010000  /* The file can be deleted          */
232  #define READ_CONTROL          0x00020000  /* The access control list and      */
233  					  /* ownership associated with the    */
234  					  /* file can be read                 */
235  #define WRITE_DAC             0x00040000  /* The access control list and      */
236  					  /* ownership associated with the    */
237  					  /* file can be written.             */
238  #define WRITE_OWNER           0x00080000  /* Ownership information associated */
239  					  /* with the file can be written     */
240  #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
241  					  /* synchronize with the completion  */
242  					  /* of an input/output request       */
243  #define GENERIC_ALL           0x10000000
244  #define GENERIC_EXECUTE       0x20000000
245  #define GENERIC_WRITE         0x40000000
246  #define GENERIC_READ          0x80000000
247  					 /* In summary - Relevant file       */
248  					 /* access flags from CIFS are       */
249  					 /* file_read_data, file_write_data  */
250  					 /* file_execute, file_read_attributes*/
251  					 /* write_dac, and delete.           */
252  
253  #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
254  #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
255  				| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
256  #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
257  
258  #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
259  				| FILE_READ_ATTRIBUTES \
260  				| FILE_WRITE_ATTRIBUTES \
261  				| DELETE | READ_CONTROL | WRITE_DAC \
262  				| WRITE_OWNER | SYNCHRONIZE)
263  #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
264  				| FILE_READ_EA | FILE_WRITE_EA \
265  				| FILE_DELETE_CHILD | FILE_READ_ATTRIBUTES \
266  				| FILE_WRITE_ATTRIBUTES \
267  				| DELETE | READ_CONTROL | WRITE_DAC \
268  				| WRITE_OWNER | SYNCHRONIZE)
269  #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
270  				| FILE_READ_ATTRIBUTES \
271  				| FILE_WRITE_ATTRIBUTES \
272  				| DELETE | READ_CONTROL | WRITE_DAC \
273  				| WRITE_OWNER | SYNCHRONIZE)
274  
275  #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
276  				| READ_CONTROL | SYNCHRONIZE)
277  
278  
279  /*
280   * Invalid readdir handle
281   */
282  #define CIFS_NO_HANDLE        0xFFFF
283  
284  #define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
285  
286  /* IPC$ in ASCII */
287  #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
288  
289  /* IPC$ in Unicode */
290  #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
291  
292  /* Unicode Null terminate 2 bytes of 0 */
293  #define UNICODE_NULL "\x00\x00"
294  #define ASCII_NULL 0x00
295  
296  /*
297   * Server type values (returned on EnumServer API
298   */
299  #define CIFS_SV_TYPE_DC     0x00000008
300  #define CIFS_SV_TYPE_BACKDC 0x00000010
301  
302  /*
303   * Alias type flags (From EnumAlias API call
304   */
305  #define CIFS_ALIAS_TYPE_FILE 0x0001
306  #define CIFS_SHARE_TYPE_FILE 0x0000
307  
308  /*
309   * File Attribute flags
310   */
311  #define ATTR_READONLY  0x0001
312  #define ATTR_HIDDEN    0x0002
313  #define ATTR_SYSTEM    0x0004
314  #define ATTR_VOLUME    0x0008
315  #define ATTR_DIRECTORY 0x0010
316  #define ATTR_ARCHIVE   0x0020
317  #define ATTR_DEVICE    0x0040
318  #define ATTR_NORMAL    0x0080
319  #define ATTR_TEMPORARY 0x0100
320  #define ATTR_SPARSE    0x0200
321  #define ATTR_REPARSE   0x0400
322  #define ATTR_COMPRESSED 0x0800
323  #define ATTR_OFFLINE    0x1000	/* ie file not immediately available -
324  					on offline storage */
325  #define ATTR_NOT_CONTENT_INDEXED 0x2000
326  #define ATTR_ENCRYPTED  0x4000
327  #define ATTR_POSIX_SEMANTICS 0x01000000
328  #define ATTR_BACKUP_SEMANTICS 0x02000000
329  #define ATTR_DELETE_ON_CLOSE 0x04000000
330  #define ATTR_SEQUENTIAL_SCAN 0x08000000
331  #define ATTR_RANDOM_ACCESS   0x10000000
332  #define ATTR_NO_BUFFERING    0x20000000
333  #define ATTR_WRITE_THROUGH   0x80000000
334  
335  /* ShareAccess flags */
336  #define FILE_NO_SHARE     0x00000000
337  #define FILE_SHARE_READ   0x00000001
338  #define FILE_SHARE_WRITE  0x00000002
339  #define FILE_SHARE_DELETE 0x00000004
340  #define FILE_SHARE_ALL    0x00000007
341  
342  /* CreateDisposition flags, similar to CreateAction as well */
343  #define FILE_SUPERSEDE    0x00000000
344  #define FILE_OPEN         0x00000001
345  #define FILE_CREATE       0x00000002
346  #define FILE_OPEN_IF      0x00000003
347  #define FILE_OVERWRITE    0x00000004
348  #define FILE_OVERWRITE_IF 0x00000005
349  
350  /* CreateOptions */
351  #define CREATE_NOT_FILE		0x00000001	/* if set must not be file */
352  #define CREATE_WRITE_THROUGH	0x00000002
353  #define CREATE_SEQUENTIAL       0x00000004
354  #define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
355  #define CREATE_SYNC_ALERT       0x00000010	/* MBZ */
356  #define CREATE_ASYNC_ALERT      0x00000020	/* MBZ */
357  #define CREATE_NOT_DIR		0x00000040    /* if set must not be directory */
358  #define CREATE_TREE_CONNECTION  0x00000080	/* should be zero */
359  #define CREATE_COMPLETE_IF_OPLK 0x00000100	/* should be zero */
360  #define CREATE_NO_EA_KNOWLEDGE  0x00000200
361  #define CREATE_EIGHT_DOT_THREE  0x00000400	/* doc says this is obsolete
362  						 "open for recovery" flag should
363  						 be zero in any case */
364  #define CREATE_OPEN_FOR_RECOVERY 0x00000400
365  #define CREATE_RANDOM_ACCESS	0x00000800
366  #define CREATE_DELETE_ON_CLOSE	0x00001000
367  #define CREATE_OPEN_BY_ID       0x00002000
368  #define CREATE_OPEN_BACKUP_INTENT 0x00004000
369  #define CREATE_NO_COMPRESSION   0x00008000
370  #define CREATE_RESERVE_OPFILTER 0x00100000	/* should be zero */
371  #define OPEN_REPARSE_POINT	0x00200000
372  #define OPEN_NO_RECALL          0x00400000
373  #define OPEN_FREE_SPACE_QUERY   0x00800000	/* should be zero */
374  #define CREATE_OPTIONS_MASK     0x007FFFFF
375  #define CREATE_OPTION_READONLY	0x10000000
376  #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
377  
378  /* ImpersonationLevel flags */
379  #define SECURITY_ANONYMOUS      0
380  #define SECURITY_IDENTIFICATION 1
381  #define SECURITY_IMPERSONATION  2
382  #define SECURITY_DELEGATION     3
383  
384  /* SecurityFlags */
385  #define SECURITY_CONTEXT_TRACKING 0x01
386  #define SECURITY_EFFECTIVE_ONLY   0x02
387  
388  /*
389   * Default PID value, used in all SMBs where the PID is not important
390   */
391  #define CIFS_DFT_PID  0x1234
392  
393  /*
394   * We use the same routine for Copy and Move SMBs.  This flag is used to
395   * distinguish
396   */
397  #define CIFS_COPY_OP 1
398  #define CIFS_RENAME_OP 2
399  
400  #define GETU16(var)  (*((__u16 *)var))	/* BB check for endian issues */
401  #define GETU32(var)  (*((__u32 *)var))	/* BB check for endian issues */
402  
403  struct smb_hdr {
404  	__be32 smb_buf_length;	/* BB length is only two (rarely three) bytes,
405  		with one or two byte "type" preceding it that will be
406  		zero - we could mask the type byte off */
407  	__u8 Protocol[4];
408  	__u8 Command;
409  	union {
410  		struct {
411  			__u8 ErrorClass;
412  			__u8 Reserved;
413  			__le16 Error;
414  		} __attribute__((packed)) DosError;
415  		__le32 CifsError;
416  	} __attribute__((packed)) Status;
417  	__u8 Flags;
418  	__le16 Flags2;		/* note: le */
419  	__le16 PidHigh;
420  	union {
421  		struct {
422  			__le32 SequenceNumber;  /* le */
423  			__u32 Reserved; /* zero */
424  		} __attribute__((packed)) Sequence;
425  		__u8 SecuritySignature[8];	/* le */
426  	} __attribute__((packed)) Signature;
427  	__u8 pad[2];
428  	__u16 Tid;
429  	__le16 Pid;
430  	__u16 Uid;
431  	__le16 Mid;
432  	__u8 WordCount;
433  } __attribute__((packed));
434  
435  /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
436  static inline void *
BCC(struct smb_hdr * smb)437  BCC(struct smb_hdr *smb)
438  {
439  	return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
440  }
441  
442  /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
443  #define pByteArea(smb_var) (BCC(smb_var) + 2)
444  
445  /* get the unconverted ByteCount for a SMB packet and return it */
446  static inline __u16
get_bcc(struct smb_hdr * hdr)447  get_bcc(struct smb_hdr *hdr)
448  {
449  	__le16 *bc_ptr = (__le16 *)BCC(hdr);
450  
451  	return get_unaligned_le16(bc_ptr);
452  }
453  
454  /* set the ByteCount for a SMB packet in little-endian */
455  static inline void
put_bcc(__u16 count,struct smb_hdr * hdr)456  put_bcc(__u16 count, struct smb_hdr *hdr)
457  {
458  	__le16 *bc_ptr = (__le16 *)BCC(hdr);
459  
460  	put_unaligned_le16(count, bc_ptr);
461  }
462  
463  /*
464   * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
465   * No longer as important, now that TCP names are more commonly used to
466   * resolve hosts.
467   */
468  #define CNLEN 15
469  
470  /*
471   * Share Name Length (SNLEN)
472   * Note:  This length was limited by the SMB used to get
473   *        the Share info.   NetShareEnum only returned 13
474   *        chars, including the null termination.
475   * This was removed because it no longer is limiting.
476   */
477  
478  /*
479   * Comment Length
480   */
481  #define MAXCOMMENTLEN 40
482  
483  /*
484   * The OS/2 maximum path name
485   */
486  #define MAX_PATHCONF 256
487  
488  /*
489   *  SMB frame definitions  (following must be packed structs)
490   *  See the SNIA CIFS Specification for details.
491   *
492   *  The Naming convention is the lower case version of the
493   *  smb command code name for the struct and this is typedef to the
494   *  uppercase version of the same name with the prefix SMB_ removed
495   *  for brevity.  Although typedefs are not commonly used for
496   *  structure definitions in the Linux kernel, their use in the
497   *  CIFS standards document, which this code is based on, may
498   *  make this one of the cases where typedefs for structures make
499   *  sense to improve readability for readers of the standards doc.
500   *  Typedefs can always be removed later if they are too distracting
501   *  and they are only used for the CIFSs PDUs themselves, not
502   *  internal cifs vfs structures
503   *
504   */
505  
506  typedef struct negotiate_req {
507  	struct smb_hdr hdr;	/* wct = 0 */
508  	__le16 ByteCount;
509  	unsigned char DialectsArray[1];
510  } __attribute__((packed)) NEGOTIATE_REQ;
511  
512  /* Dialect index is 13 for LANMAN */
513  
514  #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
515  
516  typedef struct lanman_neg_rsp {
517  	struct smb_hdr hdr;	/* wct = 13 */
518  	__le16 DialectIndex;
519  	__le16 SecurityMode;
520  	__le16 MaxBufSize;
521  	__le16 MaxMpxCount;
522  	__le16 MaxNumberVcs;
523  	__le16 RawMode;
524  	__le32 SessionKey;
525  	struct {
526  		__le16 Time;
527  		__le16 Date;
528  	} __attribute__((packed)) SrvTime;
529  	__le16 ServerTimeZone;
530  	__le16 EncryptionKeyLength;
531  	__le16 Reserved;
532  	__u16  ByteCount;
533  	unsigned char EncryptionKey[1];
534  } __attribute__((packed)) LANMAN_NEG_RSP;
535  
536  #define READ_RAW_ENABLE 1
537  #define WRITE_RAW_ENABLE 2
538  #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
539  #define SMB1_CLIENT_GUID_SIZE (16)
540  typedef struct negotiate_rsp {
541  	struct smb_hdr hdr;	/* wct = 17 */
542  	__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
543  	__u8 SecurityMode;
544  	__le16 MaxMpxCount;
545  	__le16 MaxNumberVcs;
546  	__le32 MaxBufferSize;
547  	__le32 MaxRawSize;
548  	__le32 SessionKey;
549  	__le32 Capabilities;	/* see below */
550  	__le32 SystemTimeLow;
551  	__le32 SystemTimeHigh;
552  	__le16 ServerTimeZone;
553  	__u8 EncryptionKeyLength;
554  	__u16 ByteCount;
555  	union {
556  		unsigned char EncryptionKey[1];	/* cap extended security off */
557  		/* followed by Domain name - if extended security is off */
558  		/* followed by 16 bytes of server GUID */
559  		/* then security blob if cap_extended_security negotiated */
560  		struct {
561  			unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
562  			unsigned char SecurityBlob[1];
563  		} __attribute__((packed)) extended_response;
564  	} __attribute__((packed)) u;
565  } __attribute__((packed)) NEGOTIATE_RSP;
566  
567  /* SecurityMode bits */
568  #define SECMODE_USER          0x01	/* off indicates share level security */
569  #define SECMODE_PW_ENCRYPT    0x02
570  #define SECMODE_SIGN_ENABLED  0x04	/* SMB security signatures enabled */
571  #define SECMODE_SIGN_REQUIRED 0x08	/* SMB security signatures required */
572  
573  /* Negotiate response Capabilities */
574  #define CAP_RAW_MODE           0x00000001
575  #define CAP_MPX_MODE           0x00000002
576  #define CAP_UNICODE            0x00000004
577  #define CAP_LARGE_FILES        0x00000008
578  #define CAP_NT_SMBS            0x00000010	/* implies CAP_NT_FIND */
579  #define CAP_RPC_REMOTE_APIS    0x00000020
580  #define CAP_STATUS32           0x00000040
581  #define CAP_LEVEL_II_OPLOCKS   0x00000080
582  #define CAP_LOCK_AND_READ      0x00000100
583  #define CAP_NT_FIND            0x00000200
584  #define CAP_DFS                0x00001000
585  #define CAP_INFOLEVEL_PASSTHRU 0x00002000
586  #define CAP_LARGE_READ_X       0x00004000
587  #define CAP_LARGE_WRITE_X      0x00008000
588  #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
589  #define CAP_UNIX               0x00800000
590  #define CAP_COMPRESSED_DATA    0x02000000
591  #define CAP_DYNAMIC_REAUTH     0x20000000
592  #define CAP_PERSISTENT_HANDLES 0x40000000
593  #define CAP_EXTENDED_SECURITY  0x80000000
594  
595  typedef union smb_com_session_setup_andx {
596  	struct {		/* request format */
597  		struct smb_hdr hdr;	/* wct = 12 */
598  		__u8 AndXCommand;
599  		__u8 AndXReserved;
600  		__le16 AndXOffset;
601  		__le16 MaxBufferSize;
602  		__le16 MaxMpxCount;
603  		__le16 VcNumber;
604  		__u32 SessionKey;
605  		__le16 SecurityBlobLength;
606  		__u32 Reserved;
607  		__le32 Capabilities;	/* see below */
608  		__le16 ByteCount;
609  		unsigned char SecurityBlob[1];	/* followed by */
610  		/* STRING NativeOS */
611  		/* STRING NativeLanMan */
612  	} __attribute__((packed)) req;	/* NTLM request format (with
613  					extended security */
614  
615  	struct {		/* request format */
616  		struct smb_hdr hdr;	/* wct = 13 */
617  		__u8 AndXCommand;
618  		__u8 AndXReserved;
619  		__le16 AndXOffset;
620  		__le16 MaxBufferSize;
621  		__le16 MaxMpxCount;
622  		__le16 VcNumber;
623  		__u32 SessionKey;
624  		__le16 CaseInsensitivePasswordLength; /* ASCII password len */
625  		__le16 CaseSensitivePasswordLength; /* Unicode password length*/
626  		__u32 Reserved;	/* see below */
627  		__le32 Capabilities;
628  		__le16 ByteCount;
629  		unsigned char CaseInsensitivePassword[1];     /* followed by: */
630  		/* unsigned char * CaseSensitivePassword; */
631  		/* STRING AccountName */
632  		/* STRING PrimaryDomain */
633  		/* STRING NativeOS */
634  		/* STRING NativeLanMan */
635  	} __attribute__((packed)) req_no_secext; /* NTLM request format (without
636  							extended security */
637  
638  	struct {		/* default (NTLM) response format */
639  		struct smb_hdr hdr;	/* wct = 4 */
640  		__u8 AndXCommand;
641  		__u8 AndXReserved;
642  		__le16 AndXOffset;
643  		__le16 Action;	/* see below */
644  		__le16 SecurityBlobLength;
645  		__u16 ByteCount;
646  		unsigned char SecurityBlob[1];	/* followed by */
647  /*      unsigned char  * NativeOS;      */
648  /*	unsigned char  * NativeLanMan;  */
649  /*      unsigned char  * PrimaryDomain; */
650  	} __attribute__((packed)) resp;	/* NTLM response
651  					   (with or without extended sec) */
652  
653  	struct {		/* request format */
654  		struct smb_hdr hdr;	/* wct = 10 */
655  		__u8 AndXCommand;
656  		__u8 AndXReserved;
657  		__le16 AndXOffset;
658  		__le16 MaxBufferSize;
659  		__le16 MaxMpxCount;
660  		__le16 VcNumber;
661  		__u32 SessionKey;
662  		__le16 PasswordLength;
663  		__u32 Reserved; /* encrypt key len and offset */
664  		__le16 ByteCount;
665  		unsigned char AccountPassword[1];	/* followed by */
666  		/* STRING AccountName */
667  		/* STRING PrimaryDomain */
668  		/* STRING NativeOS */
669  		/* STRING NativeLanMan */
670  	} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
671  
672  	struct {		/* default (NTLM) response format */
673  		struct smb_hdr hdr;	/* wct = 3 */
674  		__u8 AndXCommand;
675  		__u8 AndXReserved;
676  		__le16 AndXOffset;
677  		__le16 Action;	/* see below */
678  		__u16 ByteCount;
679  		unsigned char NativeOS[1];	/* followed by */
680  /*	unsigned char * NativeLanMan; */
681  /*      unsigned char * PrimaryDomain; */
682  	} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
683  } __attribute__((packed)) SESSION_SETUP_ANDX;
684  
685  /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
686  
687  #define NTLMSSP_SERVER_TYPE	1
688  #define NTLMSSP_DOMAIN_TYPE	2
689  #define NTLMSSP_FQ_DOMAIN_TYPE	3
690  #define NTLMSSP_DNS_DOMAIN_TYPE	4
691  #define NTLMSSP_DNS_PARENT_TYPE	5
692  
693  struct ntlmssp2_name {
694  	__le16 type;
695  	__le16 length;
696  /*	char   name[length]; */
697  } __attribute__((packed));
698  
699  struct ntlmv2_resp {
700  	union {
701  	    char ntlmv2_hash[CIFS_ENCPWD_SIZE];
702  	    struct {
703  		__u8 reserved[8];
704  		__u8 key[CIFS_SERVER_CHALLENGE_SIZE];
705  	    } __attribute__((packed)) challenge;
706  	} __attribute__((packed));
707  	__le32 blob_signature;
708  	__u32  reserved;
709  	__le64  time;
710  	__u64  client_chal; /* random */
711  	__u32  reserved2;
712  	/* array of name entries could follow ending in minimum 4 byte struct */
713  } __attribute__((packed));
714  
715  
716  #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
717  
718  /* Capabilities bits (for NTLM SessSetup request) */
719  #define CAP_UNICODE            0x00000004
720  #define CAP_LARGE_FILES        0x00000008
721  #define CAP_NT_SMBS            0x00000010
722  #define CAP_STATUS32           0x00000040
723  #define CAP_LEVEL_II_OPLOCKS   0x00000080
724  #define CAP_NT_FIND            0x00000200	/* reserved should be zero
725  				(because NT_SMBs implies the same thing?) */
726  #define CAP_BULK_TRANSFER      0x20000000
727  #define CAP_EXTENDED_SECURITY  0x80000000
728  
729  /* Action bits */
730  #define GUEST_LOGIN 1
731  
732  typedef struct smb_com_tconx_req {
733  	struct smb_hdr hdr;	/* wct = 4 */
734  	__u8 AndXCommand;
735  	__u8 AndXReserved;
736  	__le16 AndXOffset;
737  	__le16 Flags;		/* see below */
738  	__le16 PasswordLength;
739  	__le16 ByteCount;
740  	unsigned char Password[1];	/* followed by */
741  /* STRING Path    *//* \\server\share name */
742  	/* STRING Service */
743  } __attribute__((packed)) TCONX_REQ;
744  
745  typedef struct smb_com_tconx_rsp {
746  	struct smb_hdr hdr;	/* wct = 3 , not extended response */
747  	__u8 AndXCommand;
748  	__u8 AndXReserved;
749  	__le16 AndXOffset;
750  	__le16 OptionalSupport;	/* see below */
751  	__u16 ByteCount;
752  	unsigned char Service[1];	/* always ASCII, not Unicode */
753  	/* STRING NativeFileSystem */
754  } __attribute__((packed)) TCONX_RSP;
755  
756  typedef struct smb_com_tconx_rsp_ext {
757  	struct smb_hdr hdr;	/* wct = 7, extended response */
758  	__u8 AndXCommand;
759  	__u8 AndXReserved;
760  	__le16 AndXOffset;
761  	__le16 OptionalSupport;	/* see below */
762  	__le32 MaximalShareAccessRights;
763  	__le32 GuestMaximalShareAccessRights;
764  	__u16 ByteCount;
765  	unsigned char Service[1];	/* always ASCII, not Unicode */
766  	/* STRING NativeFileSystem */
767  } __attribute__((packed)) TCONX_RSP_EXT;
768  
769  
770  /* tree connect Flags */
771  #define DISCONNECT_TID          0x0001
772  #define TCON_EXTENDED_SIGNATURES 0x0004
773  #define TCON_EXTENDED_SECINFO   0x0008
774  
775  /* OptionalSupport bits */
776  #define SMB_SUPPORT_SEARCH_BITS 0x0001	/* "must have" directory search bits
777  					 (exclusive searches supported) */
778  #define SMB_SHARE_IS_IN_DFS     0x0002
779  #define SMB_CSC_MASK               0x000C
780  /* CSC flags defined as follows */
781  #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
782  #define SMB_CSC_CACHE_AUTO_REINT   0x0004
783  #define SMB_CSC_CACHE_VDO          0x0008
784  #define SMB_CSC_NO_CACHING         0x000C
785  #define SMB_UNIQUE_FILE_NAME    0x0010
786  #define SMB_EXTENDED_SIGNATURES 0x0020
787  
788  /* services
789   *
790   * A:       ie disk
791   * LPT1:    ie printer
792   * IPC      ie named pipe
793   * COMM
794   * ?????    ie any type
795   *
796   */
797  
798  typedef struct smb_com_echo_req {
799  	struct	smb_hdr hdr;
800  	__le16	EchoCount;
801  	__le16	ByteCount;
802  	char	Data[1];
803  } __attribute__((packed)) ECHO_REQ;
804  
805  typedef struct smb_com_echo_rsp {
806  	struct	smb_hdr hdr;
807  	__le16	SequenceNumber;
808  	__le16	ByteCount;
809  	char	Data[1];
810  } __attribute__((packed)) ECHO_RSP;
811  
812  typedef struct smb_com_logoff_andx_req {
813  	struct smb_hdr hdr;	/* wct = 2 */
814  	__u8 AndXCommand;
815  	__u8 AndXReserved;
816  	__u16 AndXOffset;
817  	__u16 ByteCount;
818  } __attribute__((packed)) LOGOFF_ANDX_REQ;
819  
820  typedef struct smb_com_logoff_andx_rsp {
821  	struct smb_hdr hdr;	/* wct = 2 */
822  	__u8 AndXCommand;
823  	__u8 AndXReserved;
824  	__u16 AndXOffset;
825  	__u16 ByteCount;
826  } __attribute__((packed)) LOGOFF_ANDX_RSP;
827  
828  typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
829  					tree_connect PDU to effect disconnect */
830  					/* tdis is probably simplest SMB PDU */
831  	struct {
832  		struct smb_hdr hdr;	/* wct = 0 */
833  		__u16 ByteCount;	/* bcc = 0 */
834  	} __attribute__((packed)) req;
835  	struct {
836  		struct smb_hdr hdr;	/* wct = 0 */
837  		__u16 ByteCount;	/* bcc = 0 */
838  	} __attribute__((packed)) resp;
839  } __attribute__((packed)) TREE_DISCONNECT;
840  
841  typedef struct smb_com_close_req {
842  	struct smb_hdr hdr;	/* wct = 3 */
843  	__u16 FileID;
844  	__u32 LastWriteTime;	/* should be zero or -1 */
845  	__u16 ByteCount;	/* 0 */
846  } __attribute__((packed)) CLOSE_REQ;
847  
848  typedef struct smb_com_close_rsp {
849  	struct smb_hdr hdr;	/* wct = 0 */
850  	__u16 ByteCount;	/* bct = 0 */
851  } __attribute__((packed)) CLOSE_RSP;
852  
853  typedef struct smb_com_flush_req {
854  	struct smb_hdr hdr;	/* wct = 1 */
855  	__u16 FileID;
856  	__u16 ByteCount;	/* 0 */
857  } __attribute__((packed)) FLUSH_REQ;
858  
859  typedef struct smb_com_findclose_req {
860  	struct smb_hdr hdr; /* wct = 1 */
861  	__u16 FileID;
862  	__u16 ByteCount;    /* 0 */
863  } __attribute__((packed)) FINDCLOSE_REQ;
864  
865  /* OpenFlags */
866  #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
867  #define REQ_OPLOCK         0x00000002
868  #define REQ_BATCHOPLOCK    0x00000004
869  #define REQ_OPENDIRONLY    0x00000008
870  #define REQ_EXTENDED_INFO  0x00000010
871  
872  /* File type */
873  #define DISK_TYPE		0x0000
874  #define BYTE_PIPE_TYPE		0x0001
875  #define MESSAGE_PIPE_TYPE	0x0002
876  #define PRINTER_TYPE		0x0003
877  #define COMM_DEV_TYPE		0x0004
878  #define UNKNOWN_TYPE		0xFFFF
879  
880  /* Device Type or File Status Flags */
881  #define NO_EAS			0x0001
882  #define NO_SUBSTREAMS		0x0002
883  #define NO_REPARSETAG		0x0004
884  /* following flags can apply if pipe */
885  #define ICOUNT_MASK		0x00FF
886  #define PIPE_READ_MODE		0x0100
887  #define NAMED_PIPE_TYPE		0x0400
888  #define PIPE_END_POINT		0x4000
889  #define BLOCKING_NAMED_PIPE	0x8000
890  
891  typedef struct smb_com_open_req {	/* also handles create */
892  	struct smb_hdr hdr;	/* wct = 24 */
893  	__u8 AndXCommand;
894  	__u8 AndXReserved;
895  	__le16 AndXOffset;
896  	__u8 Reserved;		/* Must Be Zero */
897  	__le16 NameLength;
898  	__le32 OpenFlags;
899  	__u32  RootDirectoryFid;
900  	__le32 DesiredAccess;
901  	__le64 AllocationSize;
902  	__le32 FileAttributes;
903  	__le32 ShareAccess;
904  	__le32 CreateDisposition;
905  	__le32 CreateOptions;
906  	__le32 ImpersonationLevel;
907  	__u8 SecurityFlags;
908  	__le16 ByteCount;
909  	char fileName[1];
910  } __attribute__((packed)) OPEN_REQ;
911  
912  /* open response: oplock levels */
913  #define OPLOCK_NONE  	 0
914  #define OPLOCK_EXCLUSIVE 1
915  #define OPLOCK_BATCH	 2
916  #define OPLOCK_READ	 3  /* level 2 oplock */
917  
918  /* open response for CreateAction shifted left */
919  #define CIFS_CREATE_ACTION 0x20000 /* file created */
920  
921  typedef struct smb_com_open_rsp {
922  	struct smb_hdr hdr;	/* wct = 34 BB */
923  	__u8 AndXCommand;
924  	__u8 AndXReserved;
925  	__le16 AndXOffset;
926  	__u8 OplockLevel;
927  	__u16 Fid;
928  	__le32 CreateAction;
929  	__le64 CreationTime;
930  	__le64 LastAccessTime;
931  	__le64 LastWriteTime;
932  	__le64 ChangeTime;
933  	__le32 FileAttributes;
934  	__le64 AllocationSize;
935  	__le64 EndOfFile;
936  	__le16 FileType;
937  	__le16 DeviceState;
938  	__u8 DirectoryFlag;
939  	__u16 ByteCount;	/* bct = 0 */
940  } __attribute__((packed)) OPEN_RSP;
941  
942  typedef struct smb_com_open_rsp_ext {
943  	struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
944  	__u8 AndXCommand;
945  	__u8 AndXReserved;
946  	__le16 AndXOffset;
947  	__u8 OplockLevel;
948  	__u16 Fid;
949  	__le32 CreateAction;
950  	__le64 CreationTime;
951  	__le64 LastAccessTime;
952  	__le64 LastWriteTime;
953  	__le64 ChangeTime;
954  	__le32 FileAttributes;
955  	__le64 AllocationSize;
956  	__le64 EndOfFile;
957  	__le16 FileType;
958  	__le16 DeviceState;
959  	__u8 DirectoryFlag;
960  	__u8 VolumeGUID[16];
961  	__u64 FileId; /* note no endian conversion - is opaque UniqueID */
962  	__le32 MaximalAccessRights;
963  	__le32 GuestMaximalAccessRights;
964  	__u16 ByteCount;        /* bct = 0 */
965  } __attribute__((packed)) OPEN_RSP_EXT;
966  
967  
968  /* format of legacy open request */
969  typedef struct smb_com_openx_req {
970  	struct smb_hdr	hdr;	/* wct = 15 */
971  	__u8 AndXCommand;
972  	__u8 AndXReserved;
973  	__le16 AndXOffset;
974  	__le16 OpenFlags;
975  	__le16 Mode;
976  	__le16 Sattr; /* search attributes */
977  	__le16 FileAttributes;  /* dos attrs */
978  	__le32 CreateTime; /* os2 format */
979  	__le16 OpenFunction;
980  	__le32 EndOfFile;
981  	__le32 Timeout;
982  	__le32 Reserved;
983  	__le16  ByteCount;  /* file name follows */
984  	char   fileName[1];
985  } __attribute__((packed)) OPENX_REQ;
986  
987  typedef struct smb_com_openx_rsp {
988  	struct smb_hdr	hdr;	/* wct = 15 */
989  	__u8 AndXCommand;
990  	__u8 AndXReserved;
991  	__le16 AndXOffset;
992  	__u16  Fid;
993  	__le16 FileAttributes;
994  	__le32 LastWriteTime; /* os2 format */
995  	__le32 EndOfFile;
996  	__le16 Access;
997  	__le16 FileType;
998  	__le16 IPCState;
999  	__le16 Action;
1000  	__u32  FileId;
1001  	__u16  Reserved;
1002  	__u16  ByteCount;
1003  } __attribute__((packed)) OPENX_RSP;
1004  
1005  /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
1006  
1007  /* Legacy write request for older servers */
1008  typedef struct smb_com_writex_req {
1009  	struct smb_hdr hdr;     /* wct = 12 */
1010  	__u8 AndXCommand;
1011  	__u8 AndXReserved;
1012  	__le16 AndXOffset;
1013  	__u16 Fid;
1014  	__le32 OffsetLow;
1015  	__u32 Reserved; /* Timeout */
1016  	__le16 WriteMode; /* 1 = write through */
1017  	__le16 Remaining;
1018  	__le16 Reserved2;
1019  	__le16 DataLengthLow;
1020  	__le16 DataOffset;
1021  	__le16 ByteCount;
1022  	__u8 Pad;		/* BB check for whether padded to DWORD
1023  				   boundary and optimum performance here */
1024  	char Data[0];
1025  } __attribute__((packed)) WRITEX_REQ;
1026  
1027  typedef struct smb_com_write_req {
1028  	struct smb_hdr hdr;	/* wct = 14 */
1029  	__u8 AndXCommand;
1030  	__u8 AndXReserved;
1031  	__le16 AndXOffset;
1032  	__u16 Fid;
1033  	__le32 OffsetLow;
1034  	__u32 Reserved;
1035  	__le16 WriteMode;
1036  	__le16 Remaining;
1037  	__le16 DataLengthHigh;
1038  	__le16 DataLengthLow;
1039  	__le16 DataOffset;
1040  	__le32 OffsetHigh;
1041  	__le16 ByteCount;
1042  	__u8 Pad;		/* BB check for whether padded to DWORD
1043  				   boundary and optimum performance here */
1044  	char Data[0];
1045  } __attribute__((packed)) WRITE_REQ;
1046  
1047  typedef struct smb_com_write_rsp {
1048  	struct smb_hdr hdr;	/* wct = 6 */
1049  	__u8 AndXCommand;
1050  	__u8 AndXReserved;
1051  	__le16 AndXOffset;
1052  	__le16 Count;
1053  	__le16 Remaining;
1054  	__le16 CountHigh;
1055  	__u16  Reserved;
1056  	__u16 ByteCount;
1057  } __attribute__((packed)) WRITE_RSP;
1058  
1059  /* legacy read request for older servers */
1060  typedef struct smb_com_readx_req {
1061  	struct smb_hdr hdr;	/* wct = 10 */
1062  	__u8 AndXCommand;
1063  	__u8 AndXReserved;
1064  	__le16 AndXOffset;
1065  	__u16 Fid;
1066  	__le32 OffsetLow;
1067  	__le16 MaxCount;
1068  	__le16 MinCount;	/* obsolete */
1069  	__le32 Reserved;
1070  	__le16 Remaining;
1071  	__le16 ByteCount;
1072  } __attribute__((packed)) READX_REQ;
1073  
1074  typedef struct smb_com_read_req {
1075  	struct smb_hdr hdr;	/* wct = 12 */
1076  	__u8 AndXCommand;
1077  	__u8 AndXReserved;
1078  	__le16 AndXOffset;
1079  	__u16 Fid;
1080  	__le32 OffsetLow;
1081  	__le16 MaxCount;
1082  	__le16 MinCount;		/* obsolete */
1083  	__le32 MaxCountHigh;
1084  	__le16 Remaining;
1085  	__le32 OffsetHigh;
1086  	__le16 ByteCount;
1087  } __attribute__((packed)) READ_REQ;
1088  
1089  typedef struct smb_com_read_rsp {
1090  	struct smb_hdr hdr;	/* wct = 12 */
1091  	__u8 AndXCommand;
1092  	__u8 AndXReserved;
1093  	__le16 AndXOffset;
1094  	__le16 Remaining;
1095  	__le16 DataCompactionMode;
1096  	__le16 Reserved;
1097  	__le16 DataLength;
1098  	__le16 DataOffset;
1099  	__le16 DataLengthHigh;
1100  	__u64 Reserved2;
1101  	__u16 ByteCount;
1102  	/* read response data immediately follows */
1103  } __attribute__((packed)) READ_RSP;
1104  
1105  typedef struct locking_andx_range {
1106  	__le16 Pid;
1107  	__le16 Pad;
1108  	__le32 OffsetHigh;
1109  	__le32 OffsetLow;
1110  	__le32 LengthHigh;
1111  	__le32 LengthLow;
1112  } __attribute__((packed)) LOCKING_ANDX_RANGE;
1113  
1114  #define LOCKING_ANDX_SHARED_LOCK     0x01
1115  #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1116  #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1117  #define LOCKING_ANDX_CANCEL_LOCK     0x08
1118  #define LOCKING_ANDX_LARGE_FILES     0x10	/* always on for us */
1119  
1120  typedef struct smb_com_lock_req {
1121  	struct smb_hdr hdr;	/* wct = 8 */
1122  	__u8 AndXCommand;
1123  	__u8 AndXReserved;
1124  	__le16 AndXOffset;
1125  	__u16 Fid;
1126  	__u8 LockType;
1127  	__u8 OplockLevel;
1128  	__le32 Timeout;
1129  	__le16 NumberOfUnlocks;
1130  	__le16 NumberOfLocks;
1131  	__le16 ByteCount;
1132  	LOCKING_ANDX_RANGE Locks[1];
1133  } __attribute__((packed)) LOCK_REQ;
1134  
1135  /* lock type */
1136  #define CIFS_RDLCK	0
1137  #define CIFS_WRLCK	1
1138  #define CIFS_UNLCK      2
1139  typedef struct cifs_posix_lock {
1140  	__le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1141  	__le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1142  	__le32  pid;
1143  	__le64	start;
1144  	__le64	length;
1145  	/* BB what about additional owner info to identify network client */
1146  } __attribute__((packed)) CIFS_POSIX_LOCK;
1147  
1148  typedef struct smb_com_lock_rsp {
1149  	struct smb_hdr hdr;	/* wct = 2 */
1150  	__u8 AndXCommand;
1151  	__u8 AndXReserved;
1152  	__le16 AndXOffset;
1153  	__u16 ByteCount;
1154  } __attribute__((packed)) LOCK_RSP;
1155  
1156  typedef struct smb_com_rename_req {
1157  	struct smb_hdr hdr;	/* wct = 1 */
1158  	__le16 SearchAttributes;	/* target file attributes */
1159  	__le16 ByteCount;
1160  	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1161  	unsigned char OldFileName[1];
1162  	/* followed by __u8 BufferFormat2 */
1163  	/* followed by NewFileName */
1164  } __attribute__((packed)) RENAME_REQ;
1165  
1166  	/* copy request flags */
1167  #define COPY_MUST_BE_FILE      0x0001
1168  #define COPY_MUST_BE_DIR       0x0002
1169  #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1170  #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1171  #define COPY_VERIFY_WRITES     0x0010
1172  #define COPY_TREE              0x0020
1173  
1174  typedef struct smb_com_copy_req {
1175  	struct smb_hdr hdr;	/* wct = 3 */
1176  	__u16 Tid2;
1177  	__le16 OpenFunction;
1178  	__le16 Flags;
1179  	__le16 ByteCount;
1180  	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1181  	unsigned char OldFileName[1];
1182  	/* followed by __u8 BufferFormat2 */
1183  	/* followed by NewFileName string */
1184  } __attribute__((packed)) COPY_REQ;
1185  
1186  typedef struct smb_com_copy_rsp {
1187  	struct smb_hdr hdr;     /* wct = 1 */
1188  	__le16 CopyCount;    /* number of files copied */
1189  	__u16 ByteCount;    /* may be zero */
1190  	__u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1191  	unsigned char ErrorFileName[1]; /* only present if error in copy */
1192  } __attribute__((packed)) COPY_RSP;
1193  
1194  #define CREATE_HARD_LINK		0x103
1195  #define MOVEFILE_COPY_ALLOWED		0x0002
1196  #define MOVEFILE_REPLACE_EXISTING	0x0001
1197  
1198  typedef struct smb_com_nt_rename_req {	/* A5 - also used for create hardlink */
1199  	struct smb_hdr hdr;	/* wct = 4 */
1200  	__le16 SearchAttributes;	/* target file attributes */
1201  	__le16 Flags;		/* spec says Information Level */
1202  	__le32 ClusterCount;
1203  	__le16 ByteCount;
1204  	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
1205  	unsigned char OldFileName[1];
1206  	/* followed by __u8 BufferFormat2 */
1207  	/* followed by NewFileName */
1208  } __attribute__((packed)) NT_RENAME_REQ;
1209  
1210  typedef struct smb_com_rename_rsp {
1211  	struct smb_hdr hdr;	/* wct = 0 */
1212  	__u16 ByteCount;	/* bct = 0 */
1213  } __attribute__((packed)) RENAME_RSP;
1214  
1215  typedef struct smb_com_delete_file_req {
1216  	struct smb_hdr hdr;	/* wct = 1 */
1217  	__le16 SearchAttributes;
1218  	__le16 ByteCount;
1219  	__u8 BufferFormat;	/* 4 = ASCII */
1220  	unsigned char fileName[1];
1221  } __attribute__((packed)) DELETE_FILE_REQ;
1222  
1223  typedef struct smb_com_delete_file_rsp {
1224  	struct smb_hdr hdr;	/* wct = 0 */
1225  	__u16 ByteCount;	/* bct = 0 */
1226  } __attribute__((packed)) DELETE_FILE_RSP;
1227  
1228  typedef struct smb_com_delete_directory_req {
1229  	struct smb_hdr hdr;	/* wct = 0 */
1230  	__le16 ByteCount;
1231  	__u8 BufferFormat;	/* 4 = ASCII */
1232  	unsigned char DirName[1];
1233  } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1234  
1235  typedef struct smb_com_delete_directory_rsp {
1236  	struct smb_hdr hdr;	/* wct = 0 */
1237  	__u16 ByteCount;	/* bct = 0 */
1238  } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1239  
1240  typedef struct smb_com_create_directory_req {
1241  	struct smb_hdr hdr;	/* wct = 0 */
1242  	__le16 ByteCount;
1243  	__u8 BufferFormat;	/* 4 = ASCII */
1244  	unsigned char DirName[1];
1245  } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1246  
1247  typedef struct smb_com_create_directory_rsp {
1248  	struct smb_hdr hdr;	/* wct = 0 */
1249  	__u16 ByteCount;	/* bct = 0 */
1250  } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1251  
1252  typedef struct smb_com_query_information_req {
1253  	struct smb_hdr hdr;     /* wct = 0 */
1254  	__le16 ByteCount;	/* 1 + namelen + 1 */
1255  	__u8 BufferFormat;      /* 4 = ASCII */
1256  	unsigned char FileName[1];
1257  } __attribute__((packed)) QUERY_INFORMATION_REQ;
1258  
1259  typedef struct smb_com_query_information_rsp {
1260  	struct smb_hdr hdr;     /* wct = 10 */
1261  	__le16 attr;
1262  	__le32  last_write_time;
1263  	__le32 size;
1264  	__u16  reserved[5];
1265  	__le16 ByteCount;	/* bcc = 0 */
1266  } __attribute__((packed)) QUERY_INFORMATION_RSP;
1267  
1268  typedef struct smb_com_setattr_req {
1269  	struct smb_hdr hdr; /* wct = 8 */
1270  	__le16 attr;
1271  	__le16 time_low;
1272  	__le16 time_high;
1273  	__le16 reserved[5]; /* must be zero */
1274  	__u16  ByteCount;
1275  	__u8   BufferFormat; /* 4 = ASCII */
1276  	unsigned char fileName[1];
1277  } __attribute__((packed)) SETATTR_REQ;
1278  
1279  typedef struct smb_com_setattr_rsp {
1280  	struct smb_hdr hdr;     /* wct = 0 */
1281  	__u16 ByteCount;        /* bct = 0 */
1282  } __attribute__((packed)) SETATTR_RSP;
1283  
1284  /* empty wct response to setattr */
1285  
1286  /*******************************************************/
1287  /* NT Transact structure definitions follow            */
1288  /* Currently only ioctl, acl (get security descriptor) */
1289  /* and notify are implemented                          */
1290  /*******************************************************/
1291  typedef struct smb_com_ntransact_req {
1292  	struct smb_hdr hdr; /* wct >= 19 */
1293  	__u8 MaxSetupCount;
1294  	__u16 Reserved;
1295  	__le32 TotalParameterCount;
1296  	__le32 TotalDataCount;
1297  	__le32 MaxParameterCount;
1298  	__le32 MaxDataCount;
1299  	__le32 ParameterCount;
1300  	__le32 ParameterOffset;
1301  	__le32 DataCount;
1302  	__le32 DataOffset;
1303  	__u8 SetupCount; /* four setup words follow subcommand */
1304  	/* SNIA spec incorrectly included spurious pad here */
1305  	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1306  	/* SetupCount words follow then */
1307  	__le16 ByteCount;
1308  	__u8 Pad[3];
1309  	__u8 Parms[0];
1310  } __attribute__((packed)) NTRANSACT_REQ;
1311  
1312  typedef struct smb_com_ntransact_rsp {
1313  	struct smb_hdr hdr;     /* wct = 18 */
1314  	__u8 Reserved[3];
1315  	__le32 TotalParameterCount;
1316  	__le32 TotalDataCount;
1317  	__le32 ParameterCount;
1318  	__le32 ParameterOffset;
1319  	__le32 ParameterDisplacement;
1320  	__le32 DataCount;
1321  	__le32 DataOffset;
1322  	__le32 DataDisplacement;
1323  	__u8 SetupCount;   /* 0 */
1324  	__u16 ByteCount;
1325  	/* __u8 Pad[3]; */
1326  	/* parms and data follow */
1327  } __attribute__((packed)) NTRANSACT_RSP;
1328  
1329  /* See MS-SMB 2.2.7.2.1.1 */
1330  struct srv_copychunk {
1331  	__le64 SourceOffset;
1332  	__le64 DestinationOffset;
1333  	__le32 CopyLength;
1334  	__u32  Reserved;
1335  } __packed;
1336  
1337  typedef struct smb_com_transaction_ioctl_req {
1338  	struct smb_hdr hdr;	/* wct = 23 */
1339  	__u8 MaxSetupCount;
1340  	__u16 Reserved;
1341  	__le32 TotalParameterCount;
1342  	__le32 TotalDataCount;
1343  	__le32 MaxParameterCount;
1344  	__le32 MaxDataCount;
1345  	__le32 ParameterCount;
1346  	__le32 ParameterOffset;
1347  	__le32 DataCount;
1348  	__le32 DataOffset;
1349  	__u8 SetupCount; /* four setup words follow subcommand */
1350  	/* SNIA spec incorrectly included spurious pad here */
1351  	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1352  	__le32 FunctionCode;
1353  	__u16 Fid;
1354  	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1355  	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1356  	__le16 ByteCount;
1357  	__u8 Pad[3];
1358  	__u8 Data[1];
1359  } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1360  
1361  typedef struct smb_com_transaction_compr_ioctl_req {
1362  	struct smb_hdr hdr;	/* wct = 23 */
1363  	__u8 MaxSetupCount;
1364  	__u16 Reserved;
1365  	__le32 TotalParameterCount;
1366  	__le32 TotalDataCount;
1367  	__le32 MaxParameterCount;
1368  	__le32 MaxDataCount;
1369  	__le32 ParameterCount;
1370  	__le32 ParameterOffset;
1371  	__le32 DataCount;
1372  	__le32 DataOffset;
1373  	__u8 SetupCount; /* four setup words follow subcommand */
1374  	/* SNIA spec incorrectly included spurious pad here */
1375  	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
1376  	__le32 FunctionCode;
1377  	__u16 Fid;
1378  	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1379  	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1380  	__le16 ByteCount;
1381  	__u8 Pad[3];
1382  	__le16 compression_state;  /* See below for valid flags */
1383  } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
1384  
1385  /* compression state flags */
1386  #define COMPRESSION_FORMAT_NONE		0x0000
1387  #define COMPRESSION_FORMAT_DEFAULT	0x0001
1388  #define COMPRESSION_FORMAT_LZNT1	0x0002
1389  
1390  typedef struct smb_com_transaction_ioctl_rsp {
1391  	struct smb_hdr hdr;	/* wct = 19 */
1392  	__u8 Reserved[3];
1393  	__le32 TotalParameterCount;
1394  	__le32 TotalDataCount;
1395  	__le32 ParameterCount;
1396  	__le32 ParameterOffset;
1397  	__le32 ParameterDisplacement;
1398  	__le32 DataCount;
1399  	__le32 DataOffset;
1400  	__le32 DataDisplacement;
1401  	__u8 SetupCount;	/* 1 */
1402  	__le16 ReturnedDataLen;
1403  	__u16 ByteCount;
1404  } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1405  
1406  #define CIFS_ACL_OWNER 1
1407  #define CIFS_ACL_GROUP 2
1408  #define CIFS_ACL_DACL  4
1409  #define CIFS_ACL_SACL  8
1410  
1411  typedef struct smb_com_transaction_qsec_req {
1412  	struct smb_hdr hdr;     /* wct = 19 */
1413  	__u8 MaxSetupCount;
1414  	__u16 Reserved;
1415  	__le32 TotalParameterCount;
1416  	__le32 TotalDataCount;
1417  	__le32 MaxParameterCount;
1418  	__le32 MaxDataCount;
1419  	__le32 ParameterCount;
1420  	__le32 ParameterOffset;
1421  	__le32 DataCount;
1422  	__le32 DataOffset;
1423  	__u8 SetupCount; /* no setup words follow subcommand */
1424  	/* SNIA spec incorrectly included spurious pad here */
1425  	__le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1426  	__le16 ByteCount; /* bcc = 3 + 8 */
1427  	__u8 Pad[3];
1428  	__u16 Fid;
1429  	__u16 Reserved2;
1430  	__le32 AclFlags;
1431  } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1432  
1433  
1434  typedef struct smb_com_transaction_ssec_req {
1435  	struct smb_hdr hdr;     /* wct = 19 */
1436  	__u8 MaxSetupCount;
1437  	__u16 Reserved;
1438  	__le32 TotalParameterCount;
1439  	__le32 TotalDataCount;
1440  	__le32 MaxParameterCount;
1441  	__le32 MaxDataCount;
1442  	__le32 ParameterCount;
1443  	__le32 ParameterOffset;
1444  	__le32 DataCount;
1445  	__le32 DataOffset;
1446  	__u8 SetupCount; /* no setup words follow subcommand */
1447  	/* SNIA spec incorrectly included spurious pad here */
1448  	__le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1449  	__le16 ByteCount; /* bcc = 3 + 8 */
1450  	__u8 Pad[3];
1451  	__u16 Fid;
1452  	__u16 Reserved2;
1453  	__le32 AclFlags;
1454  } __attribute__((packed)) SET_SEC_DESC_REQ;
1455  
1456  typedef struct smb_com_transaction_change_notify_req {
1457  	struct smb_hdr hdr;     /* wct = 23 */
1458  	__u8 MaxSetupCount;
1459  	__u16 Reserved;
1460  	__le32 TotalParameterCount;
1461  	__le32 TotalDataCount;
1462  	__le32 MaxParameterCount;
1463  	__le32 MaxDataCount;
1464  	__le32 ParameterCount;
1465  	__le32 ParameterOffset;
1466  	__le32 DataCount;
1467  	__le32 DataOffset;
1468  	__u8 SetupCount; /* four setup words follow subcommand */
1469  	/* SNIA spec incorrectly included spurious pad here */
1470  	__le16 SubCommand;/* 4 = Change Notify */
1471  	__le32 CompletionFilter;  /* operation to monitor */
1472  	__u16 Fid;
1473  	__u8 WatchTree;  /* 1 = Monitor subdirectories */
1474  	__u8 Reserved2;
1475  	__le16 ByteCount;
1476  /* 	__u8 Pad[3];*/
1477  /*	__u8 Data[1];*/
1478  } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1479  
1480  /* BB eventually change to use generic ntransact rsp struct
1481        and validation routine */
1482  typedef struct smb_com_transaction_change_notify_rsp {
1483  	struct smb_hdr hdr;	/* wct = 18 */
1484  	__u8 Reserved[3];
1485  	__le32 TotalParameterCount;
1486  	__le32 TotalDataCount;
1487  	__le32 ParameterCount;
1488  	__le32 ParameterOffset;
1489  	__le32 ParameterDisplacement;
1490  	__le32 DataCount;
1491  	__le32 DataOffset;
1492  	__le32 DataDisplacement;
1493  	__u8 SetupCount;   /* 0 */
1494  	__u16 ByteCount;
1495  	/* __u8 Pad[3]; */
1496  } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1497  /* Completion Filter flags for Notify */
1498  #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1499  #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1500  #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1501  #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1502  #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1503  #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1504  #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1505  #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1506  #define FILE_NOTIFY_CHANGE_EA           0x00000080
1507  #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1508  #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1509  #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1510  #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1511  
1512  #define FILE_ACTION_ADDED		0x00000001
1513  #define FILE_ACTION_REMOVED		0x00000002
1514  #define FILE_ACTION_MODIFIED		0x00000003
1515  #define FILE_ACTION_RENAMED_OLD_NAME	0x00000004
1516  #define FILE_ACTION_RENAMED_NEW_NAME	0x00000005
1517  #define FILE_ACTION_ADDED_STREAM	0x00000006
1518  #define FILE_ACTION_REMOVED_STREAM	0x00000007
1519  #define FILE_ACTION_MODIFIED_STREAM	0x00000008
1520  
1521  /* response contains array of the following structures */
1522  struct file_notify_information {
1523  	__le32 NextEntryOffset;
1524  	__le32 Action;
1525  	__le32 FileNameLength;
1526  	__u8  FileName[0];
1527  } __attribute__((packed));
1528  
1529  /* For IO_REPARSE_TAG_SYMLINK */
1530  struct reparse_symlink_data {
1531  	__le32	ReparseTag;
1532  	__le16	ReparseDataLength;
1533  	__u16	Reserved;
1534  	__le16	SubstituteNameOffset;
1535  	__le16	SubstituteNameLength;
1536  	__le16	PrintNameOffset;
1537  	__le16	PrintNameLength;
1538  	__le32	Flags;
1539  	char	PathBuffer[0];
1540  } __attribute__((packed));
1541  
1542  /* Flag above */
1543  #define SYMLINK_FLAG_RELATIVE 0x00000001
1544  
1545  /* For IO_REPARSE_TAG_NFS */
1546  #define NFS_SPECFILE_LNK	0x00000000014B4E4C
1547  #define NFS_SPECFILE_CHR	0x0000000000524843
1548  #define NFS_SPECFILE_BLK	0x00000000004B4C42
1549  #define NFS_SPECFILE_FIFO	0x000000004F464946
1550  #define NFS_SPECFILE_SOCK	0x000000004B434F53
1551  struct reparse_posix_data {
1552  	__le32	ReparseTag;
1553  	__le16	ReparseDataLength;
1554  	__u16	Reserved;
1555  	__le64	InodeType; /* LNK, FIFO, CHR etc. */
1556  	char	PathBuffer[0];
1557  } __attribute__((packed));
1558  
1559  struct cifs_quota_data {
1560  	__u32	rsrvd1;  /* 0 */
1561  	__u32	sid_size;
1562  	__u64	rsrvd2;  /* 0 */
1563  	__u64	space_used;
1564  	__u64	soft_limit;
1565  	__u64	hard_limit;
1566  	char	sid[1];  /* variable size? */
1567  } __attribute__((packed));
1568  
1569  /* quota sub commands */
1570  #define QUOTA_LIST_CONTINUE	    0
1571  #define QUOTA_LIST_START	0x100
1572  #define QUOTA_FOR_SID		0x101
1573  
1574  struct trans2_req {
1575  	/* struct smb_hdr hdr precedes. Set wct = 14+ */
1576  	__le16 TotalParameterCount;
1577  	__le16 TotalDataCount;
1578  	__le16 MaxParameterCount;
1579  	__le16 MaxDataCount;
1580  	__u8 MaxSetupCount;
1581  	__u8 Reserved;
1582  	__le16 Flags;
1583  	__le32 Timeout;
1584  	__u16 Reserved2;
1585  	__le16 ParameterCount;
1586  	__le16 ParameterOffset;
1587  	__le16 DataCount;
1588  	__le16 DataOffset;
1589  	__u8 SetupCount;
1590  	__u8 Reserved3;
1591  	__le16 SubCommand; /* 1st setup word - SetupCount words follow */
1592  	__le16 ByteCount;
1593  } __attribute__((packed));
1594  
1595  struct smb_t2_req {
1596  	struct smb_hdr hdr;
1597  	struct trans2_req t2_req;
1598  } __attribute__((packed));
1599  
1600  struct trans2_resp {
1601  	/* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1602  	__le16 TotalParameterCount;
1603  	__le16 TotalDataCount;
1604  	__u16 Reserved;
1605  	__le16 ParameterCount;
1606  	__le16 ParameterOffset;
1607  	__le16 ParameterDisplacement;
1608  	__le16 DataCount;
1609  	__le16 DataOffset;
1610  	__le16 DataDisplacement;
1611  	__u8 SetupCount;
1612  	__u8 Reserved1;
1613  	/* SetupWords[SetupCount];
1614  	__u16 ByteCount;
1615  	__u16 Reserved2;*/
1616  	/* data area follows */
1617  } __attribute__((packed));
1618  
1619  struct smb_t2_rsp {
1620  	struct smb_hdr hdr;
1621  	struct trans2_resp t2_rsp;
1622  } __attribute__((packed));
1623  
1624  /* PathInfo/FileInfo infolevels */
1625  #define SMB_INFO_STANDARD                   1
1626  #define SMB_SET_FILE_EA                     2
1627  #define SMB_QUERY_FILE_EA_SIZE              2
1628  #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1629  #define SMB_INFO_QUERY_ALL_EAS              4
1630  #define SMB_INFO_IS_NAME_VALID              6
1631  #define SMB_QUERY_FILE_BASIC_INFO       0x101
1632  #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1633  #define SMB_QUERY_FILE_EA_INFO          0x103
1634  #define SMB_QUERY_FILE_NAME_INFO        0x104
1635  #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1636  #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1637  #define SMB_QUERY_FILE_ALL_INFO         0x107
1638  #define SMB_QUERY_ALT_NAME_INFO         0x108
1639  #define SMB_QUERY_FILE_STREAM_INFO      0x109
1640  #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1641  #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1642  #define SMB_QUERY_FILE_UNIX_LINK        0x201
1643  #define SMB_QUERY_POSIX_ACL             0x204
1644  #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1645  #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1646  #define SMB_QUERY_POSIX_PERMISSION      0x207
1647  #define SMB_QUERY_POSIX_LOCK            0x208
1648  /* #define SMB_POSIX_OPEN               0x209 */
1649  /* #define SMB_POSIX_UNLINK             0x20a */
1650  #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1651  #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1652  #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1653  #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1654  #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1655  #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1656  #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1657  
1658  
1659  #define SMB_SET_FILE_BASIC_INFO	        0x101
1660  #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1661  #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1662  #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1663  #define SMB_SET_FILE_UNIX_BASIC         0x200
1664  #define SMB_SET_FILE_UNIX_LINK          0x201
1665  #define SMB_SET_FILE_UNIX_HLINK         0x203
1666  #define SMB_SET_POSIX_ACL               0x204
1667  #define SMB_SET_XATTR                   0x205
1668  #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1669  #define SMB_SET_POSIX_LOCK              0x208
1670  #define SMB_POSIX_OPEN                  0x209
1671  #define SMB_POSIX_UNLINK                0x20a
1672  #define SMB_SET_FILE_UNIX_INFO2         0x20b
1673  #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1674  #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1675  #define SMB_FILE_ALL_INFO2              0x3fa
1676  #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1677  #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1678  #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1679  #define SMB_FILE_QUOTA_INFO             0x408
1680  #define SMB_FILE_REPARSEPOINT_INFO      0x409
1681  #define SMB_FILE_MAXIMUM_INFO           0x40d
1682  
1683  /* Find File infolevels */
1684  #define SMB_FIND_FILE_INFO_STANDARD       0x001
1685  #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1686  #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1687  #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1688  #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1689  #define SMB_FIND_FILE_NAMES_INFO          0x103
1690  #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1691  #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1692  #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1693  #define SMB_FIND_FILE_UNIX                0x202
1694  
1695  typedef struct smb_com_transaction2_qpi_req {
1696  	struct smb_hdr hdr;	/* wct = 14+ */
1697  	__le16 TotalParameterCount;
1698  	__le16 TotalDataCount;
1699  	__le16 MaxParameterCount;
1700  	__le16 MaxDataCount;
1701  	__u8 MaxSetupCount;
1702  	__u8 Reserved;
1703  	__le16 Flags;
1704  	__le32 Timeout;
1705  	__u16 Reserved2;
1706  	__le16 ParameterCount;
1707  	__le16 ParameterOffset;
1708  	__le16 DataCount;
1709  	__le16 DataOffset;
1710  	__u8 SetupCount;
1711  	__u8 Reserved3;
1712  	__le16 SubCommand;	/* one setup word */
1713  	__le16 ByteCount;
1714  	__u8 Pad;
1715  	__le16 InformationLevel;
1716  	__u32 Reserved4;
1717  	char FileName[1];
1718  } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1719  
1720  typedef struct smb_com_transaction2_qpi_rsp {
1721  	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1722  	struct trans2_resp t2;
1723  	__u16 ByteCount;
1724  	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1725  } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1726  
1727  typedef struct smb_com_transaction2_spi_req {
1728  	struct smb_hdr hdr;	/* wct = 15 */
1729  	__le16 TotalParameterCount;
1730  	__le16 TotalDataCount;
1731  	__le16 MaxParameterCount;
1732  	__le16 MaxDataCount;
1733  	__u8 MaxSetupCount;
1734  	__u8 Reserved;
1735  	__le16 Flags;
1736  	__le32 Timeout;
1737  	__u16 Reserved2;
1738  	__le16 ParameterCount;
1739  	__le16 ParameterOffset;
1740  	__le16 DataCount;
1741  	__le16 DataOffset;
1742  	__u8 SetupCount;
1743  	__u8 Reserved3;
1744  	__le16 SubCommand;	/* one setup word */
1745  	__le16 ByteCount;
1746  	__u8 Pad;
1747  	__u16 Pad1;
1748  	__le16 InformationLevel;
1749  	__u32 Reserved4;
1750  	char FileName[1];
1751  } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1752  
1753  typedef struct smb_com_transaction2_spi_rsp {
1754  	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1755  	struct trans2_resp t2;
1756  	__u16 ByteCount;
1757  	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
1758  } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1759  
1760  struct set_file_rename {
1761  	__le32 overwrite;   /* 1 = overwrite dest */
1762  	__u32 root_fid;   /* zero */
1763  	__le32 target_name_len;
1764  	char  target_name[0];  /* Must be unicode */
1765  } __attribute__((packed));
1766  
1767  struct smb_com_transaction2_sfi_req {
1768  	struct smb_hdr hdr;	/* wct = 15 */
1769  	__le16 TotalParameterCount;
1770  	__le16 TotalDataCount;
1771  	__le16 MaxParameterCount;
1772  	__le16 MaxDataCount;
1773  	__u8 MaxSetupCount;
1774  	__u8 Reserved;
1775  	__le16 Flags;
1776  	__le32 Timeout;
1777  	__u16 Reserved2;
1778  	__le16 ParameterCount;
1779  	__le16 ParameterOffset;
1780  	__le16 DataCount;
1781  	__le16 DataOffset;
1782  	__u8 SetupCount;
1783  	__u8 Reserved3;
1784  	__le16 SubCommand;	/* one setup word */
1785  	__le16 ByteCount;
1786  	__u8 Pad;
1787  	__u16 Pad1;
1788  	__u16 Fid;
1789  	__le16 InformationLevel;
1790  	__u16 Reserved4;
1791  } __attribute__((packed));
1792  
1793  struct smb_com_transaction2_sfi_rsp {
1794  	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1795  	struct trans2_resp t2;
1796  	__u16 ByteCount;
1797  	__u16 Reserved2;	/* parameter word reserved -
1798  					present for infolevels > 100 */
1799  } __attribute__((packed));
1800  
1801  struct smb_t2_qfi_req {
1802  	struct	smb_hdr hdr;
1803  	struct	trans2_req t2;
1804  	__u8	Pad;
1805  	__u16	Fid;
1806  	__le16	InformationLevel;
1807  } __attribute__((packed));
1808  
1809  struct smb_t2_qfi_rsp {
1810  	struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1811  	struct trans2_resp t2;
1812  	__u16 ByteCount;
1813  	__u16 Reserved2;        /* parameter word reserved -
1814  				   present for infolevels > 100 */
1815  } __attribute__((packed));
1816  
1817  /*
1818   * Flags on T2 FINDFIRST and FINDNEXT
1819   */
1820  #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1821  #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1822  #define CIFS_SEARCH_RETURN_RESUME 0x0004
1823  #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1824  #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1825  
1826  /*
1827   * Size of the resume key on FINDFIRST and FINDNEXT calls
1828   */
1829  #define CIFS_SMB_RESUME_KEY_SIZE 4
1830  
1831  typedef struct smb_com_transaction2_ffirst_req {
1832  	struct smb_hdr hdr;	/* wct = 15 */
1833  	__le16 TotalParameterCount;
1834  	__le16 TotalDataCount;
1835  	__le16 MaxParameterCount;
1836  	__le16 MaxDataCount;
1837  	__u8 MaxSetupCount;
1838  	__u8 Reserved;
1839  	__le16 Flags;
1840  	__le32 Timeout;
1841  	__u16 Reserved2;
1842  	__le16 ParameterCount;
1843  	__le16 ParameterOffset;
1844  	__le16 DataCount;
1845  	__le16 DataOffset;
1846  	__u8 SetupCount;	/* one */
1847  	__u8 Reserved3;
1848  	__le16 SubCommand;	/* TRANS2_FIND_FIRST */
1849  	__le16 ByteCount;
1850  	__u8 Pad;
1851  	__le16 SearchAttributes;
1852  	__le16 SearchCount;
1853  	__le16 SearchFlags;
1854  	__le16 InformationLevel;
1855  	__le32 SearchStorageType;
1856  	char FileName[1];
1857  } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1858  
1859  typedef struct smb_com_transaction2_ffirst_rsp {
1860  	struct smb_hdr hdr;	/* wct = 10 */
1861  	struct trans2_resp t2;
1862  	__u16 ByteCount;
1863  } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1864  
1865  typedef struct smb_com_transaction2_ffirst_rsp_parms {
1866  	__u16 SearchHandle;
1867  	__le16 SearchCount;
1868  	__le16 EndofSearch;
1869  	__le16 EAErrorOffset;
1870  	__le16 LastNameOffset;
1871  } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1872  
1873  typedef struct smb_com_transaction2_fnext_req {
1874  	struct smb_hdr hdr;	/* wct = 15 */
1875  	__le16 TotalParameterCount;
1876  	__le16 TotalDataCount;
1877  	__le16 MaxParameterCount;
1878  	__le16 MaxDataCount;
1879  	__u8 MaxSetupCount;
1880  	__u8 Reserved;
1881  	__le16 Flags;
1882  	__le32 Timeout;
1883  	__u16 Reserved2;
1884  	__le16 ParameterCount;
1885  	__le16 ParameterOffset;
1886  	__le16 DataCount;
1887  	__le16 DataOffset;
1888  	__u8 SetupCount;	/* one */
1889  	__u8 Reserved3;
1890  	__le16 SubCommand;	/* TRANS2_FIND_NEXT */
1891  	__le16 ByteCount;
1892  	__u8 Pad;
1893  	__u16 SearchHandle;
1894  	__le16 SearchCount;
1895  	__le16 InformationLevel;
1896  	__u32 ResumeKey;
1897  	__le16 SearchFlags;
1898  	char ResumeFileName[1];
1899  } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1900  
1901  typedef struct smb_com_transaction2_fnext_rsp {
1902  	struct smb_hdr hdr;	/* wct = 10 */
1903  	struct trans2_resp t2;
1904  	__u16 ByteCount;
1905  } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1906  
1907  typedef struct smb_com_transaction2_fnext_rsp_parms {
1908  	__le16 SearchCount;
1909  	__le16 EndofSearch;
1910  	__le16 EAErrorOffset;
1911  	__le16 LastNameOffset;
1912  } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1913  
1914  /* QFSInfo Levels */
1915  #define SMB_INFO_ALLOCATION         1
1916  #define SMB_INFO_VOLUME             2
1917  #define SMB_QUERY_FS_VOLUME_INFO    0x102
1918  #define SMB_QUERY_FS_SIZE_INFO      0x103
1919  #define SMB_QUERY_FS_DEVICE_INFO    0x104
1920  #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1921  #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1922  #define SMB_QUERY_POSIX_FS_INFO     0x201
1923  #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1924  #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1925  #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1926  					    FILE_SYSTEM__UNIX_INFO to tell
1927  					    whether new NTIOCTL available
1928  					    (0xACE) for WAN friendly SMB
1929  					    operations to be carried */
1930  #define SMB_QUERY_LABEL_INFO        0x3ea
1931  #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1932  #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1933  #define SMB_QUERY_OBJECTID_INFO     0x3f0
1934  
1935  typedef struct smb_com_transaction2_qfsi_req {
1936  	struct smb_hdr hdr;	/* wct = 14+ */
1937  	__le16 TotalParameterCount;
1938  	__le16 TotalDataCount;
1939  	__le16 MaxParameterCount;
1940  	__le16 MaxDataCount;
1941  	__u8 MaxSetupCount;
1942  	__u8 Reserved;
1943  	__le16 Flags;
1944  	__le32 Timeout;
1945  	__u16 Reserved2;
1946  	__le16 ParameterCount;
1947  	__le16 ParameterOffset;
1948  	__le16 DataCount;
1949  	__le16 DataOffset;
1950  	__u8 SetupCount;
1951  	__u8 Reserved3;
1952  	__le16 SubCommand;	/* one setup word */
1953  	__le16 ByteCount;
1954  	__u8 Pad;
1955  	__le16 InformationLevel;
1956  } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1957  
1958  typedef struct smb_com_transaction_qfsi_rsp {
1959  	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
1960  	struct trans2_resp t2;
1961  	__u16 ByteCount;
1962  	__u8 Pad;	/* may be three bytes? *//* followed by data area */
1963  } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1964  
1965  typedef struct whoami_rsp_data { /* Query level 0x202 */
1966  	__u32 flags; /* 0 = Authenticated user 1 = GUEST */
1967  	__u32 mask; /* which flags bits server understands ie 0x0001 */
1968  	__u64 unix_user_id;
1969  	__u64 unix_user_gid;
1970  	__u32 number_of_supplementary_gids; /* may be zero */
1971  	__u32 number_of_sids; /* may be zero */
1972  	__u32 length_of_sid_array; /* in bytes - may be zero */
1973  	__u32 pad; /* reserved - MBZ */
1974  	/* __u64 gid_array[0]; */  /* may be empty */
1975  	/* __u8 * psid_list */  /* may be empty */
1976  } __attribute__((packed)) WHOAMI_RSP_DATA;
1977  
1978  /* SETFSInfo Levels */
1979  #define SMB_SET_CIFS_UNIX_INFO    0x200
1980  /* level 0x203 is defined above in list of QFS info levels */
1981  /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
1982  
1983  /* Level 0x200 request structure follows */
1984  typedef struct smb_com_transaction2_setfsi_req {
1985  	struct smb_hdr hdr;	/* wct = 15 */
1986  	__le16 TotalParameterCount;
1987  	__le16 TotalDataCount;
1988  	__le16 MaxParameterCount;
1989  	__le16 MaxDataCount;
1990  	__u8 MaxSetupCount;
1991  	__u8 Reserved;
1992  	__le16 Flags;
1993  	__le32 Timeout;
1994  	__u16 Reserved2;
1995  	__le16 ParameterCount;	/* 4 */
1996  	__le16 ParameterOffset;
1997  	__le16 DataCount;	/* 12 */
1998  	__le16 DataOffset;
1999  	__u8 SetupCount;	/* one */
2000  	__u8 Reserved3;
2001  	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
2002  	__le16 ByteCount;
2003  	__u8 Pad;
2004  	__u16 FileNum;		/* Parameters start. */
2005  	__le16 InformationLevel;/* Parameters end. */
2006  	__le16 ClientUnixMajor; /* Data start. */
2007  	__le16 ClientUnixMinor;
2008  	__le64 ClientUnixCap;   /* Data end */
2009  } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
2010  
2011  /* level 0x203 request structure follows */
2012  typedef struct smb_com_transaction2_setfs_enc_req {
2013  	struct smb_hdr hdr;	/* wct = 15 */
2014  	__le16 TotalParameterCount;
2015  	__le16 TotalDataCount;
2016  	__le16 MaxParameterCount;
2017  	__le16 MaxDataCount;
2018  	__u8 MaxSetupCount;
2019  	__u8 Reserved;
2020  	__le16 Flags;
2021  	__le32 Timeout;
2022  	__u16 Reserved2;
2023  	__le16 ParameterCount;	/* 4 */
2024  	__le16 ParameterOffset;
2025  	__le16 DataCount;	/* 12 */
2026  	__le16 DataOffset;
2027  	__u8 SetupCount;	/* one */
2028  	__u8 Reserved3;
2029  	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
2030  	__le16 ByteCount;
2031  	__u8 Pad;
2032  	__u16  Reserved4;	/* Parameters start. */
2033  	__le16 InformationLevel;/* Parameters end. */
2034  	/* NTLMSSP Blob, Data start. */
2035  } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
2036  
2037  /* response for setfsinfo levels 0x200 and 0x203 */
2038  typedef struct smb_com_transaction2_setfsi_rsp {
2039  	struct smb_hdr hdr;	/* wct = 10 */
2040  	struct trans2_resp t2;
2041  	__u16 ByteCount;
2042  } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
2043  
2044  typedef struct smb_com_transaction2_get_dfs_refer_req {
2045  	struct smb_hdr hdr;	/* wct = 15 */
2046  	__le16 TotalParameterCount;
2047  	__le16 TotalDataCount;
2048  	__le16 MaxParameterCount;
2049  	__le16 MaxDataCount;
2050  	__u8 MaxSetupCount;
2051  	__u8 Reserved;
2052  	__le16 Flags;
2053  	__le32 Timeout;
2054  	__u16 Reserved2;
2055  	__le16 ParameterCount;
2056  	__le16 ParameterOffset;
2057  	__le16 DataCount;
2058  	__le16 DataOffset;
2059  	__u8 SetupCount;
2060  	__u8 Reserved3;
2061  	__le16 SubCommand;	/* one setup word */
2062  	__le16 ByteCount;
2063  	__u8 Pad[3];		/* Win2K has sent 0x0F01 (max response length
2064  				   perhaps?) followed by one byte pad - doesn't
2065  				   seem to matter though */
2066  	__le16 MaxReferralLevel;
2067  	char RequestFileName[1];
2068  } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
2069  
2070  #define DFS_VERSION cpu_to_le16(0x0003)
2071  
2072  /* DFS server target type */
2073  #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
2074  #define DFS_TYPE_ROOT 0x0001
2075  
2076  /* Referral Entry Flags */
2077  #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
2078  #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2079  
2080  typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2081  	__le16 VersionNumber;  /* must be 3 or 4 */
2082  	__le16 Size;
2083  	__le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2084  	__le16 ReferralEntryFlags;
2085  	__le32 TimeToLive;
2086  	__le16 DfsPathOffset;
2087  	__le16 DfsAlternatePathOffset;
2088  	__le16 NetworkAddressOffset; /* offset of the link target */
2089  	__u8   ServiceSiteGuid[16];  /* MBZ, ignored */
2090  } __attribute__((packed)) REFERRAL3;
2091  
2092  struct get_dfs_referral_rsp {
2093  	__le16 PathConsumed;
2094  	__le16 NumberOfReferrals;
2095  	__le32 DFSFlags;
2096  	REFERRAL3 referrals[1];	/* array of level 3 dfs_referral structures */
2097  	/* followed by the strings pointed to by the referral structures */
2098  } __packed;
2099  
2100  typedef struct smb_com_transaction_get_dfs_refer_rsp {
2101  	struct smb_hdr hdr;	/* wct = 10 */
2102  	struct trans2_resp t2;
2103  	__u16 ByteCount;
2104  	__u8 Pad;
2105  	struct get_dfs_referral_rsp dfs_data;
2106  } __packed TRANSACTION2_GET_DFS_REFER_RSP;
2107  
2108  /* DFS Flags */
2109  #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2110  #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2111  #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2112  
2113  /*
2114   ************************************************************************
2115   * All structs for everything above the SMB PDUs themselves
2116   * (such as the T2 level specific data) go here
2117   ************************************************************************
2118   */
2119  
2120  /*
2121   * Information on a server
2122   */
2123  
2124  struct serverInfo {
2125  	char name[16];
2126  	unsigned char versionMajor;
2127  	unsigned char versionMinor;
2128  	unsigned long type;
2129  	unsigned int commentOffset;
2130  } __attribute__((packed));
2131  
2132  /*
2133   * The following structure is the format of the data returned on a NetShareEnum
2134   * with level "90" (x5A)
2135   */
2136  
2137  struct shareInfo {
2138  	char shareName[13];
2139  	char pad;
2140  	unsigned short type;
2141  	unsigned int commentOffset;
2142  } __attribute__((packed));
2143  
2144  struct aliasInfo {
2145  	char aliasName[9];
2146  	char pad;
2147  	unsigned int commentOffset;
2148  	unsigned char type[2];
2149  } __attribute__((packed));
2150  
2151  struct aliasInfo92 {
2152  	int aliasNameOffset;
2153  	int serverNameOffset;
2154  	int shareNameOffset;
2155  } __attribute__((packed));
2156  
2157  typedef struct {
2158  	__le64 TotalAllocationUnits;
2159  	__le64 FreeAllocationUnits;
2160  	__le32 SectorsPerAllocationUnit;
2161  	__le32 BytesPerSector;
2162  } __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */
2163  
2164  typedef struct {
2165  	__le32 fsid;
2166  	__le32 SectorsPerAllocationUnit;
2167  	__le32 TotalAllocationUnits;
2168  	__le32 FreeAllocationUnits;
2169  	__le16  BytesPerSector;
2170  } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2171  
2172  typedef struct {
2173  	__le16 MajorVersionNumber;
2174  	__le16 MinorVersionNumber;
2175  	__le64 Capability;
2176  } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2177  
2178  /* Version numbers for CIFS UNIX major and minor. */
2179  #define CIFS_UNIX_MAJOR_VERSION 1
2180  #define CIFS_UNIX_MINOR_VERSION 0
2181  
2182  /* Linux/Unix extensions capability flags */
2183  #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2184  #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2185  #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2186  #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2187  #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2188  #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2189  						      calls including posix open
2190  						      and posix unlink */
2191  #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
2192  						      to 0xFFFF00 */
2193  #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2194  #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2195  #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2196  #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
2197  						      QFS PROXY call */
2198  #ifdef CONFIG_CIFS_POSIX
2199  /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
2200     LockingX instead of posix locking call on unix sess (and we do not expect
2201     LockingX to use different (ie Windows) semantics than posix locking on
2202     the same session (if WINE needs to do this later, we can add this cap
2203     back in later */
2204  /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2205  #define CIFS_UNIX_CAP_MASK              0x000003db
2206  #else
2207  #define CIFS_UNIX_CAP_MASK              0x00000013
2208  #endif /* CONFIG_CIFS_POSIX */
2209  
2210  
2211  #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2212  
2213  typedef struct {
2214  	/* For undefined recommended transfer size return -1 in that field */
2215  	__le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2216  	__le32 BlockSize;
2217      /* The next three fields are in terms of the block size.
2218  	(above). If block size is unknown, 4096 would be a
2219  	reasonable block size for a server to report.
2220  	Note that returning the blocks/blocksavail removes need
2221  	to make a second call (to QFSInfo level 0x103 to get this info.
2222  	UserBlockAvail is typically less than or equal to BlocksAvail,
2223  	if no distinction is made return the same value in each */
2224  	__le64 TotalBlocks;
2225  	__le64 BlocksAvail;       /* bfree */
2226  	__le64 UserBlocksAvail;   /* bavail */
2227      /* For undefined Node fields or FSID return -1 */
2228  	__le64 TotalFileNodes;
2229  	__le64 FreeFileNodes;
2230  	__le64 FileSysIdentifier;   /* fsid */
2231  	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2232  	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2233  } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2234  
2235  /* DeviceType Flags */
2236  #define FILE_DEVICE_CD_ROM              0x00000002
2237  #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2238  #define FILE_DEVICE_DFS                 0x00000006
2239  #define FILE_DEVICE_DISK                0x00000007
2240  #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2241  #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2242  #define FILE_DEVICE_NAMED_PIPE          0x00000011
2243  #define FILE_DEVICE_NETWORK             0x00000012
2244  #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2245  #define FILE_DEVICE_NULL                0x00000015
2246  #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2247  #define FILE_DEVICE_PRINTER             0x00000018
2248  #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2249  #define FILE_DEVICE_STREAMS             0x0000001e
2250  #define FILE_DEVICE_TAPE                0x0000001f
2251  #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2252  #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2253  #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2254  
2255  /* Device Characteristics */
2256  #define FILE_REMOVABLE_MEDIA			0x00000001
2257  #define FILE_READ_ONLY_DEVICE			0x00000002
2258  #define FILE_FLOPPY_DISKETTE			0x00000004
2259  #define FILE_WRITE_ONCE_MEDIA			0x00000008
2260  #define FILE_REMOTE_DEVICE			0x00000010
2261  #define FILE_DEVICE_IS_MOUNTED			0x00000020
2262  #define FILE_VIRTUAL_VOLUME			0x00000040
2263  #define FILE_DEVICE_SECURE_OPEN			0x00000100
2264  #define FILE_CHARACTERISTIC_TS_DEVICE		0x00001000
2265  #define FILE_CHARACTERISTIC_WEBDAV_DEVICE	0x00002000
2266  #define FILE_PORTABLE_DEVICE			0x00004000
2267  #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
2268  
2269  typedef struct {
2270  	__le32 DeviceType;
2271  	__le32 DeviceCharacteristics;
2272  } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2273  
2274  /* minimum includes first three fields, and empty FS Name */
2275  #define MIN_FS_ATTR_INFO_SIZE 12
2276  
2277  
2278  /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
2279  #define FILE_SUPPORTS_SPARSE_VDL	0x10000000 /* faster nonsparse extend */
2280  #define FILE_SUPPORTS_BLOCK_REFCOUNTING	0x08000000 /* allow ioctl dup extents */
2281  #define FILE_SUPPORT_INTEGRITY_STREAMS	0x04000000
2282  #define FILE_SUPPORTS_USN_JOURNAL	0x02000000
2283  #define FILE_SUPPORTS_OPEN_BY_FILE_ID	0x01000000
2284  #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
2285  #define FILE_SUPPORTS_HARD_LINKS	0x00400000
2286  #define FILE_SUPPORTS_TRANSACTIONS	0x00200000
2287  #define FILE_SEQUENTIAL_WRITE_ONCE	0x00100000
2288  #define FILE_READ_ONLY_VOLUME		0x00080000
2289  #define FILE_NAMED_STREAMS		0x00040000
2290  #define FILE_SUPPORTS_ENCRYPTION	0x00020000
2291  #define FILE_SUPPORTS_OBJECT_IDS	0x00010000
2292  #define FILE_VOLUME_IS_COMPRESSED	0x00008000
2293  #define FILE_SUPPORTS_REMOTE_STORAGE	0x00000100
2294  #define FILE_SUPPORTS_REPARSE_POINTS	0x00000080
2295  #define FILE_SUPPORTS_SPARSE_FILES	0x00000040
2296  #define FILE_VOLUME_QUOTAS		0x00000020
2297  #define FILE_FILE_COMPRESSION		0x00000010
2298  #define FILE_PERSISTENT_ACLS		0x00000008
2299  #define FILE_UNICODE_ON_DISK		0x00000004
2300  #define FILE_CASE_PRESERVED_NAMES	0x00000002
2301  #define FILE_CASE_SENSITIVE_SEARCH	0x00000001
2302  typedef struct {
2303  	__le32 Attributes;
2304  	__le32 MaxPathNameComponentLength;
2305  	__le32 FileSystemNameLen;
2306  	char FileSystemName[52]; /* do not have to save this - get subset? */
2307  } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2308  
2309  /******************************************************************************/
2310  /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2311  /******************************************************************************/
2312  typedef struct { /* data block encoding of response to level 263 QPathInfo */
2313  	__le64 CreationTime;
2314  	__le64 LastAccessTime;
2315  	__le64 LastWriteTime;
2316  	__le64 ChangeTime;
2317  	__le32 Attributes;
2318  	__u32 Pad1;
2319  	__le64 AllocationSize;
2320  	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2321  	__le32 NumberOfLinks;	/* hard links */
2322  	__u8 DeletePending;
2323  	__u8 Directory;
2324  	__u16 Pad2;
2325  	__le64 IndexNumber;
2326  	__le32 EASize;
2327  	__le32 AccessFlags;
2328  	__u64 IndexNumber1;
2329  	__le64 CurrentByteOffset;
2330  	__le32 Mode;
2331  	__le32 AlignmentRequirement;
2332  	__le32 FileNameLength;
2333  	char FileName[1];
2334  } __attribute__((packed)) FILE_ALL_INFO;	/* level 0x107 QPathInfo */
2335  
2336  typedef struct {
2337  	__le64 AllocationSize;
2338  	__le64 EndOfFile;	/* size ie offset to first free byte in file */
2339  	__le32 NumberOfLinks;	/* hard links */
2340  	__u8 DeletePending;
2341  	__u8 Directory;
2342  	__u16 Pad;
2343  } __attribute__((packed)) FILE_STANDARD_INFO;	/* level 0x102 QPathInfo */
2344  
2345  
2346  /* defines for enumerating possible values of the Unix type field below */
2347  #define UNIX_FILE      0
2348  #define UNIX_DIR       1
2349  #define UNIX_SYMLINK   2
2350  #define UNIX_CHARDEV   3
2351  #define UNIX_BLOCKDEV  4
2352  #define UNIX_FIFO      5
2353  #define UNIX_SOCKET    6
2354  typedef struct {
2355  	__le64 EndOfFile;
2356  	__le64 NumOfBytes;
2357  	__le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2358  	__le64 LastAccessTime;
2359  	__le64 LastModificationTime;
2360  	__le64 Uid;
2361  	__le64 Gid;
2362  	__le32 Type;
2363  	__le64 DevMajor;
2364  	__le64 DevMinor;
2365  	__le64 UniqueId;
2366  	__le64 Permissions;
2367  	__le64 Nlinks;
2368  } __attribute__((packed)) FILE_UNIX_BASIC_INFO;	/* level 0x200 QPathInfo */
2369  
2370  typedef struct {
2371  	char LinkDest[1];
2372  } __attribute__((packed)) FILE_UNIX_LINK_INFO;	/* level 0x201 QPathInfo */
2373  
2374  /* The following three structures are needed only for
2375  	setting time to NT4 and some older servers via
2376  	the primitive DOS time format */
2377  typedef struct {
2378  	__u16 Day:5;
2379  	__u16 Month:4;
2380  	__u16 Year:7;
2381  } __attribute__((packed)) SMB_DATE;
2382  
2383  typedef struct {
2384  	__u16 TwoSeconds:5;
2385  	__u16 Minutes:6;
2386  	__u16 Hours:5;
2387  } __attribute__((packed)) SMB_TIME;
2388  
2389  typedef struct {
2390  	__le16 CreationDate; /* SMB Date see above */
2391  	__le16 CreationTime; /* SMB Time */
2392  	__le16 LastAccessDate;
2393  	__le16 LastAccessTime;
2394  	__le16 LastWriteDate;
2395  	__le16 LastWriteTime;
2396  	__le32 DataSize; /* File Size (EOF) */
2397  	__le32 AllocationSize;
2398  	__le16 Attributes; /* verify not u32 */
2399  	__le32 EASize;
2400  } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2401  
2402  typedef struct {
2403  	__le64 CreationTime;
2404  	__le64 LastAccessTime;
2405  	__le64 LastWriteTime;
2406  	__le64 ChangeTime;
2407  	__le32 Attributes;
2408  	__u32 Pad;
2409  } __attribute__((packed)) FILE_BASIC_INFO;	/* size info, level 0x101 */
2410  
2411  struct file_allocation_info {
2412  	__le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2413  } __attribute__((packed));	/* size used on disk, for level 0x103 for set,
2414  				   0x105 for query */
2415  
2416  struct file_end_of_file_info {
2417  	__le64 FileSize;		/* offset to end of file */
2418  } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2419  
2420  struct file_alt_name_info {
2421  	__u8   alt_name[1];
2422  } __attribute__((packed));      /* level 0x0108 */
2423  
2424  struct file_stream_info {
2425  	__le32 number_of_streams;  /* BB check sizes and verify location */
2426  	/* followed by info on streams themselves
2427  		u64 size;
2428  		u64 allocation_size
2429  		stream info */
2430  };      /* level 0x109 */
2431  
2432  struct file_compression_info {
2433  	__le64 compressed_size;
2434  	__le16 format;
2435  	__u8   unit_shift;
2436  	__u8   ch_shift;
2437  	__u8   cl_shift;
2438  	__u8   pad[3];
2439  } __attribute__((packed));      /* level 0x10b */
2440  
2441  /* POSIX ACL set/query path info structures */
2442  #define CIFS_ACL_VERSION 1
2443  struct cifs_posix_ace { /* access control entry (ACE) */
2444  	__u8  cifs_e_tag;
2445  	__u8  cifs_e_perm;
2446  	__le64 cifs_uid; /* or gid */
2447  } __attribute__((packed));
2448  
2449  struct cifs_posix_acl { /* access conrol list  (ACL) */
2450  	__le16	version;
2451  	__le16	access_entry_count;  /* access ACL - count of entries */
2452  	__le16	default_entry_count; /* default ACL - count of entries */
2453  	struct cifs_posix_ace ace_array[0];
2454  	/* followed by
2455  	struct cifs_posix_ace default_ace_arraay[] */
2456  } __attribute__((packed));  /* level 0x204 */
2457  
2458  /* types of access control entries already defined in posix_acl.h */
2459  /* #define CIFS_POSIX_ACL_USER_OBJ	 0x01
2460  #define CIFS_POSIX_ACL_USER      0x02
2461  #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2462  #define CIFS_POSIX_ACL_GROUP     0x08
2463  #define CIFS_POSIX_ACL_MASK      0x10
2464  #define CIFS_POSIX_ACL_OTHER     0x20 */
2465  
2466  /* types of perms */
2467  /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2468  #define CIFS_POSIX_ACL_WRITE     0x02
2469  #define CIFS_POSIX_ACL_READ	     0x04 */
2470  
2471  /* end of POSIX ACL definitions */
2472  
2473  /* POSIX Open Flags */
2474  #define SMB_O_RDONLY 	 0x1
2475  #define SMB_O_WRONLY 	0x2
2476  #define SMB_O_RDWR 	0x4
2477  #define SMB_O_CREAT 	0x10
2478  #define SMB_O_EXCL 	0x20
2479  #define SMB_O_TRUNC 	0x40
2480  #define SMB_O_APPEND 	0x80
2481  #define SMB_O_SYNC 	0x100
2482  #define SMB_O_DIRECTORY 0x200
2483  #define SMB_O_NOFOLLOW 	0x400
2484  #define SMB_O_DIRECT 	0x800
2485  
2486  typedef struct {
2487  	__le32 OpenFlags; /* same as NT CreateX */
2488  	__le32 PosixOpenFlags;
2489  	__le64 Permissions;
2490  	__le16 Level; /* reply level requested (see QPathInfo levels) */
2491  } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2492  
2493  typedef struct {
2494  	__le16 OplockFlags;
2495  	__u16 Fid;
2496  	__le32 CreateAction;
2497  	__le16 ReturnedLevel;
2498  	__le16 Pad;
2499  	/* struct following varies based on requested level */
2500  } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2501  
2502  #define SMB_POSIX_UNLINK_FILE_TARGET		0
2503  #define SMB_POSIX_UNLINK_DIRECTORY_TARGET	1
2504  
2505  struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2506  	__le16 type;
2507  } __attribute__((packed));
2508  
2509  struct file_internal_info {
2510  	__le64  UniqueId; /* inode number */
2511  } __attribute__((packed));      /* level 0x3ee */
2512  
2513  struct file_mode_info {
2514  	__le32	Mode;
2515  } __attribute__((packed));      /* level 0x3f8 */
2516  
2517  struct file_attrib_tag {
2518  	__le32 Attribute;
2519  	__le32 ReparseTag;
2520  } __attribute__((packed));      /* level 0x40b */
2521  
2522  
2523  /********************************************************/
2524  /*  FindFirst/FindNext transact2 data buffer formats    */
2525  /********************************************************/
2526  
2527  typedef struct {
2528  	__le32 NextEntryOffset;
2529  	__u32 ResumeKey; /* as with FileIndex - no need to convert */
2530  	FILE_UNIX_BASIC_INFO basic;
2531  	char FileName[1];
2532  } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2533  
2534  typedef struct {
2535  	__le32 NextEntryOffset;
2536  	__u32 FileIndex;
2537  	__le64 CreationTime;
2538  	__le64 LastAccessTime;
2539  	__le64 LastWriteTime;
2540  	__le64 ChangeTime;
2541  	__le64 EndOfFile;
2542  	__le64 AllocationSize;
2543  	__le32 ExtFileAttributes;
2544  	__le32 FileNameLength;
2545  	char FileName[1];
2546  } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
2547  
2548  typedef struct {
2549  	__le32 NextEntryOffset;
2550  	__u32 FileIndex;
2551  	__le64 CreationTime;
2552  	__le64 LastAccessTime;
2553  	__le64 LastWriteTime;
2554  	__le64 ChangeTime;
2555  	__le64 EndOfFile;
2556  	__le64 AllocationSize;
2557  	__le32 ExtFileAttributes;
2558  	__le32 FileNameLength;
2559  	__le32 EaSize; /* length of the xattrs */
2560  	char FileName[1];
2561  } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2562  
2563  typedef struct {
2564  	__le32 NextEntryOffset;
2565  	__u32 FileIndex;
2566  	__le64 CreationTime;
2567  	__le64 LastAccessTime;
2568  	__le64 LastWriteTime;
2569  	__le64 ChangeTime;
2570  	__le64 EndOfFile;
2571  	__le64 AllocationSize;
2572  	__le32 ExtFileAttributes;
2573  	__le32 FileNameLength;
2574  	__le32 EaSize; /* EA size */
2575  	__le32 Reserved;
2576  	__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2577  	char FileName[1];
2578  } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2579  
2580  typedef struct {
2581  	__le32 NextEntryOffset;
2582  	__u32 FileIndex;
2583  	__le64 CreationTime;
2584  	__le64 LastAccessTime;
2585  	__le64 LastWriteTime;
2586  	__le64 ChangeTime;
2587  	__le64 EndOfFile;
2588  	__le64 AllocationSize;
2589  	__le32 ExtFileAttributes;
2590  	__le32 FileNameLength;
2591  	__le32 EaSize; /* length of the xattrs */
2592  	__u8   ShortNameLength;
2593  	__u8   Reserved;
2594  	__u8   ShortName[12];
2595  	char FileName[1];
2596  } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2597  
2598  typedef struct {
2599  	__u32  ResumeKey;
2600  	__le16 CreationDate; /* SMB Date */
2601  	__le16 CreationTime; /* SMB Time */
2602  	__le16 LastAccessDate;
2603  	__le16 LastAccessTime;
2604  	__le16 LastWriteDate;
2605  	__le16 LastWriteTime;
2606  	__le32 DataSize; /* File Size (EOF) */
2607  	__le32 AllocationSize;
2608  	__le16 Attributes; /* verify not u32 */
2609  	__u8   FileNameLength;
2610  	char FileName[1];
2611  } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2612  
2613  
2614  struct win_dev {
2615  	unsigned char type[8]; /* IntxCHR or IntxBLK */
2616  	__le64 major;
2617  	__le64 minor;
2618  } __attribute__((packed));
2619  
2620  struct gea {
2621  	unsigned char name_len;
2622  	char name[1];
2623  } __attribute__((packed));
2624  
2625  struct gealist {
2626  	unsigned long list_len;
2627  	struct gea list[1];
2628  } __attribute__((packed));
2629  
2630  struct fea {
2631  	unsigned char EA_flags;
2632  	__u8 name_len;
2633  	__le16 value_len;
2634  	char name[1];
2635  	/* optionally followed by value */
2636  } __attribute__((packed));
2637  /* flags for _FEA.fEA */
2638  #define FEA_NEEDEA         0x80	/* need EA bit */
2639  
2640  struct fealist {
2641  	__le32 list_len;
2642  	struct fea list[1];
2643  } __attribute__((packed));
2644  
2645  /* used to hold an arbitrary blob of data */
2646  struct data_blob {
2647  	__u8 *data;
2648  	size_t length;
2649  	void (*free) (struct data_blob *data_blob);
2650  } __attribute__((packed));
2651  
2652  
2653  #ifdef CONFIG_CIFS_POSIX
2654  /*
2655  	For better POSIX semantics from Linux client, (even better
2656  	than the existing CIFS Unix Extensions) we need updated PDUs for:
2657  
2658  	1) PosixCreateX - to set and return the mode, inode#, device info and
2659  	perhaps add a CreateDevice - to create Pipes and other special .inodes
2660  	Also note POSIX open flags
2661  	2) Close - to return the last write time to do cache across close
2662  		more safely
2663  	3) FindFirst return unique inode number - what about resume key, two
2664  	forms short (matches readdir) and full (enough info to cache inodes)
2665  	4) Mkdir - set mode
2666  
2667  	And under consideration:
2668  	5) FindClose2 (return nanosecond timestamp ??)
2669  	6) Use nanosecond timestamps throughout all time fields if
2670  	   corresponding attribute flag is set
2671  	7) sendfile - handle based copy
2672  
2673  	what about fixing 64 bit alignment
2674  
2675  	There are also various legacy SMB/CIFS requests used as is
2676  
2677  	From existing Lanman and NTLM dialects:
2678  	--------------------------------------
2679  	NEGOTIATE
2680  	SESSION_SETUP_ANDX (BB which?)
2681  	TREE_CONNECT_ANDX (BB which wct?)
2682  	TREE_DISCONNECT (BB add volume timestamp on response)
2683  	LOGOFF_ANDX
2684  	DELETE (note delete open file behavior)
2685  	DELETE_DIRECTORY
2686  	READ_AND_X
2687  	WRITE_AND_X
2688  	LOCKING_AND_X (note posix lock semantics)
2689  	RENAME (note rename across dirs and open file rename posix behaviors)
2690  	NT_RENAME (for hardlinks) Is this good enough for all features?
2691  	FIND_CLOSE2
2692  	TRANSACTION2 (18 cases)
2693  		SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2694  		(BB verify that never need to set allocation size)
2695  		SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2696  			 Unix ext?)
2697  
2698  	COPY (note support for copy across directories) - FUTURE, OPTIONAL
2699  	setting/getting OS/2 EAs - FUTURE (BB can this handle
2700  	setting Linux xattrs perfectly)         - OPTIONAL
2701  	dnotify                                 - FUTURE, OPTIONAL
2702  	quota                                   - FUTURE, OPTIONAL
2703  
2704  	Note that various requests implemented for NT interop such as
2705  		NT_TRANSACT (IOCTL) QueryReparseInfo
2706  	are unneeded to servers compliant with the CIFS POSIX extensions
2707  
2708  	From CIFS Unix Extensions:
2709  	-------------------------
2710  	T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2711  	T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2712  	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2713  	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)	BB check for missing
2714  							inode fields
2715  				Actually a need QUERY_FILE_UNIX_INFO
2716  				since has inode num
2717  				BB what about a) blksize/blkbits/blocks
2718  							  b) i_version
2719  							  c) i_rdev
2720  							  d) notify mask?
2721  							  e) generation
2722  							  f) size_seqcount
2723  	T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2724  	TRANS2_GET_DFS_REFERRAL		      - OPTIONAL but recommended
2725  	T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2726   */
2727  
2728  /* xsymlink is a symlink format (used by MacOS) that can be used
2729     to save symlink info in a regular file when
2730     mounted to operating systems that do not
2731     support the cifs Unix extensions or EAs (for xattr
2732     based symlinks).  For such a file to be recognized
2733     as containing symlink data:
2734  
2735     1) file size must be 1067,
2736     2) signature must begin file data,
2737     3) length field must be set to ASCII representation
2738  	of a number which is less than or equal to 1024,
2739     4) md5 must match that of the path data */
2740  
2741  struct xsymlink {
2742  	/* 1067 bytes */
2743  	char signature[4]; /* XSym */ /* not null terminated */
2744  	char cr0;         /* \n */
2745  /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2746  	char length[4];
2747  	char cr1;         /* \n */
2748  /* md5 of valid subset of path ie path[0] through path[length-1] */
2749  	__u8 md5[32];
2750  	char cr2;        /* \n */
2751  /* if room left, then end with \n then 0x20s by convention but not required */
2752  	char path[1024];
2753  } __attribute__((packed));
2754  
2755  typedef struct file_xattr_info {
2756  	/* BB do we need another field for flags? BB */
2757  	__u32 xattr_name_len;
2758  	__u32 xattr_value_len;
2759  	char  xattr_name[0];
2760  	/* followed by xattr_value[xattr_value_len], no pad */
2761  } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2762  					      level 0x205 */
2763  
2764  /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
2765  
2766  typedef struct file_chattr_info {
2767  	__le64	mask; /* list of all possible attribute bits */
2768  	__le64	mode; /* list of actual attribute bits on this inode */
2769  } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
2770  						(chattr, chflags) level 0x206 */
2771  #endif 				/* POSIX */
2772  #endif				/* _CIFSPDU_H */
2773