fs/cifs/cifspdu.h

   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 #define CIFS_CLIENT_CHALLENGE_SIZE (8)
 146 #define CIFS_SERVER_CHALLENGE_SIZE (8)
 147 #define CIFS_HMAC_MD5_HASH_SIZE (16)
 148 #define CIFS_CPHTXT_SIZE (16)
 149 #define CIFS_NTHASH_SIZE (16)
 150
 151 /*
 152  * Maximum user name length
 153  */
 154 #define CIFS_UNLEN (20)
 155
 156 /*
 157  * Flags on SMB open
 158  */
 159 #define SMBOPEN_WRITE_THROUGH 0x4000
 160 #define SMBOPEN_DENY_ALL      0x0010
 161 #define SMBOPEN_DENY_WRITE    0x0020
 162 #define SMBOPEN_DENY_READ     0x0030
 163 #define SMBOPEN_DENY_NONE     0x0040
 164 #define SMBOPEN_READ          0x0000
 165 #define SMBOPEN_WRITE         0x0001
 166 #define SMBOPEN_READWRITE     0x0002
 167 #define SMBOPEN_EXECUTE       0x0003
 168
 169 #define SMBOPEN_OCREATE       0x0010
 170 #define SMBOPEN_OTRUNC        0x0002
 171 #define SMBOPEN_OAPPEND       0x0001
 172
 173 /*
 174  * SMB flag definitions
 175  */
 176 #define SMBFLG_EXTD_LOCK 0x01   /* server supports lock-read write-unlock smb */
 177 #define SMBFLG_RCV_POSTED 0x02  /* obsolete */
 178 #define SMBFLG_RSVD 0x04
 179 #define SMBFLG_CASELESS 0x08    /* all pathnames treated as caseless (off
 180                                 implies case sensitive file handling request) */
 181 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10       /* obsolete */
 182 #define SMBFLG_OLD_OPLOCK 0x20  /* obsolete */
 183 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40   /* obsolete */
 184 #define SMBFLG_RESPONSE 0x80    /* this PDU is a response from server */
 185
 186 /*
 187  * SMB flag2 definitions
 188  */
 189 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3)
 190                                                    path names in response */
 191 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
 192 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
 193 #define SMBFLG2_COMPRESSED (8)
 194 #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
 195 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
 196 #define SMBFLG2_REPARSE_PATH (0x400)
 197 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
 198 #define SMBFLG2_DFS cpu_to_le16(0x1000)
 199 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
 200 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
 201 #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
 202
 203 /*
 204  * These are the file access permission bits defined in CIFS for the
 205  * NTCreateAndX as well as the level 0x107
 206  * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
 207  * responds with the AccessFlags.
 208  * The AccessFlags specifies the access permissions a caller has to the
 209  * file and can have any suitable combination of the following values:
 210  */
 211
 212 #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
 213 #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
 214 #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
 215 #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
 216                                           /* with the file can be read        */
 217 #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
 218                                           /* with the file can be written     */
 219 #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
 220                                           /* the file using system paging I/O */
 221 #define FILE_DELETE_CHILD     0x00000040
 222 #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
 223                                           /* file can be read                 */
 224 #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
 225                                           /* file can be written              */
 226 #define DELETE                0x00010000  /* The file can be deleted          */
 227 #define READ_CONTROL          0x00020000  /* The access control list and      */
 228                                           /* ownership associated with the    */
 229                                           /* file can be read                 */
 230 #define WRITE_DAC             0x00040000  /* The access control list and      */
 231                                           /* ownership associated with the    */
 232                                           /* file can be written.             */
 233 #define WRITE_OWNER           0x00080000  /* Ownership information associated */
 234                                           /* with the file can be written     */
 235 #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
 236                                           /* synchronize with the completion  */
 237                                           /* of an input/output request       */
 238 #define GENERIC_ALL           0x10000000
 239 #define GENERIC_EXECUTE       0x20000000
 240 #define GENERIC_WRITE         0x40000000
 241 #define GENERIC_READ          0x80000000
 242                                          /* In summary - Relevant file       */
 243                                          /* access flags from CIFS are       */
 244                                          /* file_read_data, file_write_data  */
 245                                          /* file_execute, file_read_attributes*/
 246                                          /* write_dac, and delete.           */
 247
 248 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
 249 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
 250                                 | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
 251 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
 252
 253 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
 254                                 | FILE_READ_ATTRIBUTES \
 255                                 | FILE_WRITE_ATTRIBUTES \
 256                                 | DELETE | READ_CONTROL | WRITE_DAC \
 257                                 | WRITE_OWNER | SYNCHRONIZE)
 258 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
 259                                 | FILE_READ_EA | FILE_WRITE_EA \
 260                                 | FILE_DELETE_CHILD | FILE_READ_ATTRIBUTES \
 261                                 | FILE_WRITE_ATTRIBUTES \
 262                                 | DELETE | READ_CONTROL | WRITE_DAC \
 263                                 | WRITE_OWNER | SYNCHRONIZE)
 264 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
 265                                 | FILE_READ_ATTRIBUTES \
 266                                 | FILE_WRITE_ATTRIBUTES \
 267                                 | DELETE | READ_CONTROL | WRITE_DAC \
 268                                 | WRITE_OWNER | SYNCHRONIZE)
 269
 270 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
 271                                 | READ_CONTROL | SYNCHRONIZE)
 272
 273
 274 /*
 275  * Invalid readdir handle
 276  */
 277 #define CIFS_NO_HANDLE        0xFFFF
 278
 279 #define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
 280 #define NO_CHANGE_32          0xFFFFFFFFUL
 281
 282 /* IPC$ in ASCII */
 283 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
 284
 285 /* IPC$ in Unicode */
 286 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
 287
 288 /* Unicode Null terminate 2 bytes of 0 */
 289 #define UNICODE_NULL "\x00\x00"
 290 #define ASCII_NULL 0x00
 291
 292 /*
 293  * Server type values (returned on EnumServer API
 294  */
 295 #define CIFS_SV_TYPE_DC     0x00000008
 296 #define CIFS_SV_TYPE_BACKDC 0x00000010
 297
 298 /*
 299  * Alias type flags (From EnumAlias API call
 300  */
 301 #define CIFS_ALIAS_TYPE_FILE 0x0001
 302 #define CIFS_SHARE_TYPE_FILE 0x0000
 303
 304 /*
 305  * File Attribute flags
 306  */
 307 #define ATTR_READONLY  0x0001
 308 #define ATTR_HIDDEN    0x0002
 309 #define ATTR_SYSTEM    0x0004
 310 #define ATTR_VOLUME    0x0008
 311 #define ATTR_DIRECTORY 0x0010
 312 #define ATTR_ARCHIVE   0x0020
 313 #define ATTR_DEVICE    0x0040
 314 #define ATTR_NORMAL    0x0080
 315 #define ATTR_TEMPORARY 0x0100
 316 #define ATTR_SPARSE    0x0200
 317 #define ATTR_REPARSE   0x0400
 318 #define ATTR_COMPRESSED 0x0800
 319 #define ATTR_OFFLINE    0x1000  /* ie file not immediately available -
 320                                         on offline storage */
 321 #define ATTR_NOT_CONTENT_INDEXED 0x2000
 322 #define ATTR_ENCRYPTED  0x4000
 323 #define ATTR_POSIX_SEMANTICS 0x01000000
 324 #define ATTR_BACKUP_SEMANTICS 0x02000000
 325 #define ATTR_DELETE_ON_CLOSE 0x04000000
 326 #define ATTR_SEQUENTIAL_SCAN 0x08000000
 327 #define ATTR_RANDOM_ACCESS   0x10000000
 328 #define ATTR_NO_BUFFERING    0x20000000
 329 #define ATTR_WRITE_THROUGH   0x80000000
 330
 331 /* ShareAccess flags */
 332 #define FILE_NO_SHARE     0x00000000
 333 #define FILE_SHARE_READ   0x00000001
 334 #define FILE_SHARE_WRITE  0x00000002
 335 #define FILE_SHARE_DELETE 0x00000004
 336 #define FILE_SHARE_ALL    0x00000007
 337
 338 /* CreateDisposition flags, similar to CreateAction as well */
 339 #define FILE_SUPERSEDE    0x00000000
 340 #define FILE_OPEN         0x00000001
 341 #define FILE_CREATE       0x00000002
 342 #define FILE_OPEN_IF      0x00000003
 343 #define FILE_OVERWRITE    0x00000004
 344 #define FILE_OVERWRITE_IF 0x00000005
 345
 346 /* CreateOptions */
 347 #define CREATE_NOT_FILE         0x00000001      /* if set must not be file */
 348 #define CREATE_WRITE_THROUGH    0x00000002
 349 #define CREATE_SEQUENTIAL       0x00000004
 350 #define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
 351 #define CREATE_SYNC_ALERT       0x00000010      /* MBZ */
 352 #define CREATE_ASYNC_ALERT      0x00000020      /* MBZ */
 353 #define CREATE_NOT_DIR          0x00000040    /* if set must not be directory */
 354 #define CREATE_TREE_CONNECTION  0x00000080      /* should be zero */
 355 #define CREATE_COMPLETE_IF_OPLK 0x00000100      /* should be zero */
 356 #define CREATE_NO_EA_KNOWLEDGE  0x00000200
 357 #define CREATE_EIGHT_DOT_THREE  0x00000400      /* doc says this is obsolete
 358                                                  "open for recovery" flag should
 359                                                  be zero in any case */
 360 #define CREATE_OPEN_FOR_RECOVERY 0x00000400
 361 #define CREATE_RANDOM_ACCESS    0x00000800
 362 #define CREATE_DELETE_ON_CLOSE  0x00001000
 363 #define CREATE_OPEN_BY_ID       0x00002000
 364 #define CREATE_OPEN_BACKUP_INTENT 0x00004000
 365 #define CREATE_NO_COMPRESSION   0x00008000
 366 #define CREATE_RESERVE_OPFILTER 0x00100000      /* should be zero */
 367 #define OPEN_REPARSE_POINT      0x00200000
 368 #define OPEN_NO_RECALL          0x00400000
 369 #define OPEN_FREE_SPACE_QUERY   0x00800000      /* should be zero */
 370 #define CREATE_OPTIONS_MASK     0x007FFFFF
 371 #define CREATE_OPTION_READONLY  0x10000000
 372 #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
 373
 374 /* ImpersonationLevel flags */
 375 #define SECURITY_ANONYMOUS      0
 376 #define SECURITY_IDENTIFICATION 1
 377 #define SECURITY_IMPERSONATION  2
 378 #define SECURITY_DELEGATION     3
 379
 380 /* SecurityFlags */
 381 #define SECURITY_CONTEXT_TRACKING 0x01
 382 #define SECURITY_EFFECTIVE_ONLY   0x02
 383
 384 /*
 385  * Default PID value, used in all SMBs where the PID is not important
 386  */
 387 #define CIFS_DFT_PID  0x1234
 388
 389 /*
 390  * We use the same routine for Copy and Move SMBs.  This flag is used to
 391  * distinguish
 392  */
 393 #define CIFS_COPY_OP 1
 394 #define CIFS_RENAME_OP 2
 395
 396 #define GETU16(var)  (*((__u16 *)var))  /* BB check for endian issues */
 397 #define GETU32(var)  (*((__u32 *)var))  /* BB check for endian issues */
 398
 399 struct smb_hdr {
 400         __be32 smb_buf_length;  /* BB length is only two (rarely three) bytes,
 401                 with one or two byte "type" preceding it that will be
 402                 zero - we could mask the type byte off */
 403         __u8 Protocol[4];
 404         __u8 Command;
 405         union {
 406                 struct {
 407                         __u8 ErrorClass;
 408                         __u8 Reserved;
 409                         __le16 Error;
 410                 } __attribute__((packed)) DosError;
 411                 __le32 CifsError;
 412         } __attribute__((packed)) Status;
 413         __u8 Flags;
 414         __le16 Flags2;          /* note: le */
 415         __le16 PidHigh;
 416         union {
 417                 struct {
 418                         __le32 SequenceNumber;  /* le */
 419                         __u32 Reserved; /* zero */
 420                 } __attribute__((packed)) Sequence;
 421                 __u8 SecuritySignature[8];      /* le */
 422         } __attribute__((packed)) Signature;
 423         __u8 pad[2];
 424         __u16 Tid;
 425         __le16 Pid;
 426         __u16 Uid;
 427         __u16 Mid;
 428         __u8 WordCount;
 429 } __attribute__((packed));
 430
 431 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
 432 static inline void *
 433 BCC(struct smb_hdr *smb)
 434 {
 435         return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
 436 }
 437
 438 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
 439 #define pByteArea(smb_var) (BCC(smb_var) + 2)
 440
 441 /* get the unconverted ByteCount for a SMB packet and return it */
 442 static inline __u16
 443 get_bcc(struct smb_hdr *hdr)
 444 {
 445         __le16 *bc_ptr = (__le16 *)BCC(hdr);
 446
 447         return get_unaligned_le16(bc_ptr);
 448 }
 449
 450 /* set the ByteCount for a SMB packet in little-endian */
 451 static inline void
 452 put_bcc(__u16 count, struct smb_hdr *hdr)
 453 {
 454         __le16 *bc_ptr = (__le16 *)BCC(hdr);
 455
 456         put_unaligned_le16(count, bc_ptr);
 457 }
 458
 459 /*
 460  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
 461  * No longer as important, now that TCP names are more commonly used to
 462  * resolve hosts.
 463  */
 464 #define CNLEN 15
 465
 466 /*
 467  * Share Name Length (SNLEN)
 468  * Note:  This length was limited by the SMB used to get
 469  *        the Share info.   NetShareEnum only returned 13
 470  *        chars, including the null termination.
 471  * This was removed because it no longer is limiting.
 472  */
 473
 474 /*
 475  * Comment Length
 476  */
 477 #define MAXCOMMENTLEN 40
 478
 479 /*
 480  * The OS/2 maximum path name
 481  */
 482 #define MAX_PATHCONF 256
 483
 484 /*
 485  *  SMB frame definitions  (following must be packed structs)
 486  *  See the SNIA CIFS Specification for details.
 487  *
 488  *  The Naming convention is the lower case version of the
 489  *  smb command code name for the struct and this is typedef to the
 490  *  uppercase version of the same name with the prefix SMB_ removed
 491  *  for brevity.  Although typedefs are not commonly used for
 492  *  structure definitions in the Linux kernel, their use in the
 493  *  CIFS standards document, which this code is based on, may
 494  *  make this one of the cases where typedefs for structures make
 495  *  sense to improve readability for readers of the standards doc.
 496  *  Typedefs can always be removed later if they are too distracting
 497  *  and they are only used for the CIFSs PDUs themselves, not
 498  *  internal cifs vfs structures
 499  *
 500  */
 501
 502 typedef struct negotiate_req {
 503         struct smb_hdr hdr;     /* wct = 0 */
 504         __le16 ByteCount;
 505         unsigned char DialectsArray[1];
 506 } __attribute__((packed)) NEGOTIATE_REQ;
 507
 508 /* Dialect index is 13 for LANMAN */
 509
 510 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
 511
 512 typedef struct lanman_neg_rsp {
 513         struct smb_hdr hdr;     /* wct = 13 */
 514         __le16 DialectIndex;
 515         __le16 SecurityMode;
 516         __le16 MaxBufSize;
 517         __le16 MaxMpxCount;
 518         __le16 MaxNumberVcs;
 519         __le16 RawMode;
 520         __le32 SessionKey;
 521         struct {
 522                 __le16 Time;
 523                 __le16 Date;
 524         } __attribute__((packed)) SrvTime;
 525         __le16 ServerTimeZone;
 526         __le16 EncryptionKeyLength;
 527         __le16 Reserved;
 528         __u16  ByteCount;
 529         unsigned char EncryptionKey[1];
 530 } __attribute__((packed)) LANMAN_NEG_RSP;
 531
 532 #define READ_RAW_ENABLE 1
 533 #define WRITE_RAW_ENABLE 2
 534 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
 535
 536 typedef struct negotiate_rsp {
 537         struct smb_hdr hdr;     /* wct = 17 */
 538         __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
 539         __u8 SecurityMode;
 540         __le16 MaxMpxCount;
 541         __le16 MaxNumberVcs;
 542         __le32 MaxBufferSize;
 543         __le32 MaxRawSize;
 544         __le32 SessionKey;
 545         __le32 Capabilities;    /* see below */
 546         __le32 SystemTimeLow;
 547         __le32 SystemTimeHigh;
 548         __le16 ServerTimeZone;
 549         __u8 EncryptionKeyLength;
 550         __u16 ByteCount;
 551         union {
 552                 unsigned char EncryptionKey[1]; /* cap extended security off */
 553                 /* followed by Domain name - if extended security is off */
 554                 /* followed by 16 bytes of server GUID */
 555                 /* then security blob if cap_extended_security negotiated */
 556                 struct {
 557                         unsigned char GUID[16];
 558                         unsigned char SecurityBlob[1];
 559                 } __attribute__((packed)) extended_response;
 560         } __attribute__((packed)) u;
 561 } __attribute__((packed)) NEGOTIATE_RSP;
 562
 563 /* SecurityMode bits */
 564 #define SECMODE_USER          0x01      /* off indicates share level security */
 565 #define SECMODE_PW_ENCRYPT    0x02
 566 #define SECMODE_SIGN_ENABLED  0x04      /* SMB security signatures enabled */
 567 #define SECMODE_SIGN_REQUIRED 0x08      /* SMB security signatures required */
 568
 569 /* Negotiate response Capabilities */
 570 #define CAP_RAW_MODE           0x00000001
 571 #define CAP_MPX_MODE           0x00000002
 572 #define CAP_UNICODE            0x00000004
 573 #define CAP_LARGE_FILES        0x00000008
 574 #define CAP_NT_SMBS            0x00000010       /* implies CAP_NT_FIND */
 575 #define CAP_RPC_REMOTE_APIS    0x00000020
 576 #define CAP_STATUS32           0x00000040
 577 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 578 #define CAP_LOCK_AND_READ      0x00000100
 579 #define CAP_NT_FIND            0x00000200
 580 #define CAP_DFS                0x00001000
 581 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
 582 #define CAP_LARGE_READ_X       0x00004000
 583 #define CAP_LARGE_WRITE_X      0x00008000
 584 #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
 585 #define CAP_UNIX               0x00800000
 586 #define CAP_COMPRESSED_DATA    0x02000000
 587 #define CAP_DYNAMIC_REAUTH     0x20000000
 588 #define CAP_PERSISTENT_HANDLES 0x40000000
 589 #define CAP_EXTENDED_SECURITY  0x80000000
 590
 591 typedef union smb_com_session_setup_andx {
 592         struct {                /* request format */
 593                 struct smb_hdr hdr;     /* wct = 12 */
 594                 __u8 AndXCommand;
 595                 __u8 AndXReserved;
 596                 __le16 AndXOffset;
 597                 __le16 MaxBufferSize;
 598                 __le16 MaxMpxCount;
 599                 __le16 VcNumber;
 600                 __u32 SessionKey;
 601                 __le16 SecurityBlobLength;
 602                 __u32 Reserved;
 603                 __le32 Capabilities;    /* see below */
 604                 __le16 ByteCount;
 605                 unsigned char SecurityBlob[1];  /* followed by */
 606                 /* STRING NativeOS */
 607                 /* STRING NativeLanMan */
 608         } __attribute__((packed)) req;  /* NTLM request format (with
 609                                         extended security */
 610
 611         struct {                /* request format */
 612                 struct smb_hdr hdr;     /* wct = 13 */
 613                 __u8 AndXCommand;
 614                 __u8 AndXReserved;
 615                 __le16 AndXOffset;
 616                 __le16 MaxBufferSize;
 617                 __le16 MaxMpxCount;
 618                 __le16 VcNumber;
 619                 __u32 SessionKey;
 620                 __le16 CaseInsensitivePasswordLength; /* ASCII password len */
 621                 __le16 CaseSensitivePasswordLength; /* Unicode password length*/
 622                 __u32 Reserved; /* see below */
 623                 __le32 Capabilities;
 624                 __le16 ByteCount;
 625                 unsigned char CaseInsensitivePassword[1];     /* followed by: */
 626                 /* unsigned char * CaseSensitivePassword; */
 627                 /* STRING AccountName */
 628                 /* STRING PrimaryDomain */
 629                 /* STRING NativeOS */
 630                 /* STRING NativeLanMan */
 631         } __attribute__((packed)) req_no_secext; /* NTLM request format (without
 632                                                         extended security */
 633
 634         struct {                /* default (NTLM) response format */
 635                 struct smb_hdr hdr;     /* wct = 4 */
 636                 __u8 AndXCommand;
 637                 __u8 AndXReserved;
 638                 __le16 AndXOffset;
 639                 __le16 Action;  /* see below */
 640                 __le16 SecurityBlobLength;
 641                 __u16 ByteCount;
 642                 unsigned char SecurityBlob[1];  /* followed by */
 643 /*      unsigned char  * NativeOS;      */
 644 /*      unsigned char  * NativeLanMan;  */
 645 /*      unsigned char  * PrimaryDomain; */
 646         } __attribute__((packed)) resp; /* NTLM response
 647                                            (with or without extended sec) */
 648
 649         struct {                /* request format */
 650                 struct smb_hdr hdr;     /* wct = 10 */
 651                 __u8 AndXCommand;
 652                 __u8 AndXReserved;
 653                 __le16 AndXOffset;
 654                 __le16 MaxBufferSize;
 655                 __le16 MaxMpxCount;
 656                 __le16 VcNumber;
 657                 __u32 SessionKey;
 658                 __le16 PasswordLength;
 659                 __u32 Reserved; /* encrypt key len and offset */
 660                 __le16 ByteCount;
 661                 unsigned char AccountPassword[1];       /* followed by */
 662                 /* STRING AccountName */
 663                 /* STRING PrimaryDomain */
 664                 /* STRING NativeOS */
 665                 /* STRING NativeLanMan */
 666         } __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
 667
 668         struct {                /* default (NTLM) response format */
 669                 struct smb_hdr hdr;     /* wct = 3 */
 670                 __u8 AndXCommand;
 671                 __u8 AndXReserved;
 672                 __le16 AndXOffset;
 673                 __le16 Action;  /* see below */
 674                 __u16 ByteCount;
 675                 unsigned char NativeOS[1];      /* followed by */
 676 /*      unsigned char * NativeLanMan; */
 677 /*      unsigned char * PrimaryDomain; */
 678         } __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
 679 } __attribute__((packed)) SESSION_SETUP_ANDX;
 680
 681 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
 682
 683 #define NTLMSSP_SERVER_TYPE     1
 684 #define NTLMSSP_DOMAIN_TYPE     2
 685 #define NTLMSSP_FQ_DOMAIN_TYPE  3
 686 #define NTLMSSP_DNS_DOMAIN_TYPE 4
 687 #define NTLMSSP_DNS_PARENT_TYPE 5
 688
 689 struct ntlmssp2_name {
 690         __le16 type;
 691         __le16 length;
 692 /*      char   name[length]; */
 693 } __attribute__((packed));
 694
 695 struct ntlmv2_resp {
 696         char ntlmv2_hash[CIFS_ENCPWD_SIZE];
 697         __le32 blob_signature;
 698         __u32  reserved;
 699         __le64  time;
 700         __u64  client_chal; /* random */
 701         __u32  reserved2;
 702         /* array of name entries could follow ending in minimum 4 byte struct */
 703 } __attribute__((packed));
 704
 705
 706 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
 707
 708 /* Capabilities bits (for NTLM SessSetup request) */
 709 #define CAP_UNICODE            0x00000004
 710 #define CAP_LARGE_FILES        0x00000008
 711 #define CAP_NT_SMBS            0x00000010
 712 #define CAP_STATUS32           0x00000040
 713 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 714 #define CAP_NT_FIND            0x00000200       /* reserved should be zero
 715                                 (because NT_SMBs implies the same thing?) */
 716 #define CAP_BULK_TRANSFER      0x20000000
 717 #define CAP_EXTENDED_SECURITY  0x80000000
 718
 719 /* Action bits */
 720 #define GUEST_LOGIN 1
 721
 722 typedef struct smb_com_tconx_req {
 723         struct smb_hdr hdr;     /* wct = 4 */
 724         __u8 AndXCommand;
 725         __u8 AndXReserved;
 726         __le16 AndXOffset;
 727         __le16 Flags;           /* see below */
 728         __le16 PasswordLength;
 729         __le16 ByteCount;
 730         unsigned char Password[1];      /* followed by */
 731 /* STRING Path    *//* \\server\share name */
 732         /* STRING Service */
 733 } __attribute__((packed)) TCONX_REQ;
 734
 735 typedef struct smb_com_tconx_rsp {
 736         struct smb_hdr hdr;     /* wct = 3 , not extended response */
 737         __u8 AndXCommand;
 738         __u8 AndXReserved;
 739         __le16 AndXOffset;
 740         __le16 OptionalSupport; /* see below */
 741         __u16 ByteCount;
 742         unsigned char Service[1];       /* always ASCII, not Unicode */
 743         /* STRING NativeFileSystem */
 744 } __attribute__((packed)) TCONX_RSP;
 745
 746 typedef struct smb_com_tconx_rsp_ext {
 747         struct smb_hdr hdr;     /* wct = 7, extended response */
 748         __u8 AndXCommand;
 749         __u8 AndXReserved;
 750         __le16 AndXOffset;
 751         __le16 OptionalSupport; /* see below */
 752         __le32 MaximalShareAccessRights;
 753         __le32 GuestMaximalShareAccessRights;
 754         __u16 ByteCount;
 755         unsigned char Service[1];       /* always ASCII, not Unicode */
 756         /* STRING NativeFileSystem */
 757 } __attribute__((packed)) TCONX_RSP_EXT;
 758
 759
 760 /* tree connect Flags */
 761 #define DISCONNECT_TID          0x0001
 762 #define TCON_EXTENDED_SIGNATURES 0x0004
 763 #define TCON_EXTENDED_SECINFO   0x0008
 764
 765 /* OptionalSupport bits */
 766 #define SMB_SUPPORT_SEARCH_BITS 0x0001  /* "must have" directory search bits
 767                                          (exclusive searches supported) */
 768 #define SMB_SHARE_IS_IN_DFS     0x0002
 769 #define SMB_CSC_MASK               0x000C
 770 /* CSC flags defined as follows */
 771 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
 772 #define SMB_CSC_CACHE_AUTO_REINT   0x0004
 773 #define SMB_CSC_CACHE_VDO          0x0008
 774 #define SMB_CSC_NO_CACHING         0x000C
 775 #define SMB_UNIQUE_FILE_NAME    0x0010
 776 #define SMB_EXTENDED_SIGNATURES 0x0020
 777
 778 /* services
 779  *
 780  * A:       ie disk
 781  * LPT1:    ie printer
 782  * IPC      ie named pipe
 783  * COMM
 784  * ?????    ie any type
 785  *
 786  */
 787
 788 typedef struct smb_com_echo_req {
 789         struct  smb_hdr hdr;
 790         __le16  EchoCount;
 791         __le16  ByteCount;
 792         char    Data[1];
 793 } __attribute__((packed)) ECHO_REQ;
 794
 795 typedef struct smb_com_echo_rsp {
 796         struct  smb_hdr hdr;
 797         __le16  SequenceNumber;
 798         __le16  ByteCount;
 799         char    Data[1];
 800 } __attribute__((packed)) ECHO_RSP;
 801
 802 typedef struct smb_com_logoff_andx_req {
 803         struct smb_hdr hdr;     /* wct = 2 */
 804         __u8 AndXCommand;
 805         __u8 AndXReserved;
 806         __u16 AndXOffset;
 807         __u16 ByteCount;
 808 } __attribute__((packed)) LOGOFF_ANDX_REQ;
 809
 810 typedef struct smb_com_logoff_andx_rsp {
 811         struct smb_hdr hdr;     /* wct = 2 */
 812         __u8 AndXCommand;
 813         __u8 AndXReserved;
 814         __u16 AndXOffset;
 815         __u16 ByteCount;
 816 } __attribute__((packed)) LOGOFF_ANDX_RSP;
 817
 818 typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on
 819                                         tree_connect PDU to effect disconnect */
 820                                         /* tdis is probably simplest SMB PDU */
 821         struct {
 822                 struct smb_hdr hdr;     /* wct = 0 */
 823                 __u16 ByteCount;        /* bcc = 0 */
 824         } __attribute__((packed)) req;
 825         struct {
 826                 struct smb_hdr hdr;     /* wct = 0 */
 827                 __u16 ByteCount;        /* bcc = 0 */
 828         } __attribute__((packed)) resp;
 829 } __attribute__((packed)) TREE_DISCONNECT;
 830
 831 typedef struct smb_com_close_req {
 832         struct smb_hdr hdr;     /* wct = 3 */
 833         __u16 FileID;
 834         __u32 LastWriteTime;    /* should be zero or -1 */
 835         __u16 ByteCount;        /* 0 */
 836 } __attribute__((packed)) CLOSE_REQ;
 837
 838 typedef struct smb_com_close_rsp {
 839         struct smb_hdr hdr;     /* wct = 0 */
 840         __u16 ByteCount;        /* bct = 0 */
 841 } __attribute__((packed)) CLOSE_RSP;
 842
 843 typedef struct smb_com_flush_req {
 844         struct smb_hdr hdr;     /* wct = 1 */
 845         __u16 FileID;
 846         __u16 ByteCount;        /* 0 */
 847 } __attribute__((packed)) FLUSH_REQ;
 848
 849 typedef struct smb_com_findclose_req {
 850         struct smb_hdr hdr; /* wct = 1 */
 851         __u16 FileID;
 852         __u16 ByteCount;    /* 0 */
 853 } __attribute__((packed)) FINDCLOSE_REQ;
 854
 855 /* OpenFlags */
 856 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
 857 #define REQ_OPLOCK         0x00000002
 858 #define REQ_BATCHOPLOCK    0x00000004
 859 #define REQ_OPENDIRONLY    0x00000008
 860 #define REQ_EXTENDED_INFO  0x00000010
 861
 862 /* File type */
 863 #define DISK_TYPE               0x0000
 864 #define BYTE_PIPE_TYPE          0x0001
 865 #define MESSAGE_PIPE_TYPE       0x0002
 866 #define PRINTER_TYPE            0x0003
 867 #define COMM_DEV_TYPE           0x0004
 868 #define UNKNOWN_TYPE            0xFFFF
 869
 870 /* Device Type or File Status Flags */
 871 #define NO_EAS                  0x0001
 872 #define NO_SUBSTREAMS           0x0002
 873 #define NO_REPARSETAG           0x0004
 874 /* following flags can apply if pipe */
 875 #define ICOUNT_MASK             0x00FF
 876 #define PIPE_READ_MODE          0x0100
 877 #define NAMED_PIPE_TYPE         0x0400
 878 #define PIPE_END_POINT          0x4000
 879 #define BLOCKING_NAMED_PIPE     0x8000
 880
 881 typedef struct smb_com_open_req {       /* also handles create */
 882         struct smb_hdr hdr;     /* wct = 24 */
 883         __u8 AndXCommand;
 884         __u8 AndXReserved;
 885         __le16 AndXOffset;
 886         __u8 Reserved;          /* Must Be Zero */
 887         __le16 NameLength;
 888         __le32 OpenFlags;
 889         __u32  RootDirectoryFid;
 890         __le32 DesiredAccess;
 891         __le64 AllocationSize;
 892         __le32 FileAttributes;
 893         __le32 ShareAccess;
 894         __le32 CreateDisposition;
 895         __le32 CreateOptions;
 896         __le32 ImpersonationLevel;
 897         __u8 SecurityFlags;
 898         __le16 ByteCount;
 899         char fileName[1];
 900 } __attribute__((packed)) OPEN_REQ;
 901
 902 /* open response: oplock levels */
 903 #define OPLOCK_NONE      0
 904 #define OPLOCK_EXCLUSIVE 1
 905 #define OPLOCK_BATCH     2
 906 #define OPLOCK_READ      3  /* level 2 oplock */
 907
 908 /* open response for CreateAction shifted left */
 909 #define CIFS_CREATE_ACTION 0x20000 /* file created */
 910
 911 typedef struct smb_com_open_rsp {
 912         struct smb_hdr hdr;     /* wct = 34 BB */
 913         __u8 AndXCommand;
 914         __u8 AndXReserved;
 915         __le16 AndXOffset;
 916         __u8 OplockLevel;
 917         __u16 Fid;
 918         __le32 CreateAction;
 919         __le64 CreationTime;
 920         __le64 LastAccessTime;
 921         __le64 LastWriteTime;
 922         __le64 ChangeTime;
 923         __le32 FileAttributes;
 924         __le64 AllocationSize;
 925         __le64 EndOfFile;
 926         __le16 FileType;
 927         __le16 DeviceState;
 928         __u8 DirectoryFlag;
 929         __u16 ByteCount;        /* bct = 0 */
 930 } __attribute__((packed)) OPEN_RSP;
 931
 932 typedef struct smb_com_open_rsp_ext {
 933         struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
 934         __u8 AndXCommand;
 935         __u8 AndXReserved;
 936         __le16 AndXOffset;
 937         __u8 OplockLevel;
 938         __u16 Fid;
 939         __le32 CreateAction;
 940         __le64 CreationTime;
 941         __le64 LastAccessTime;
 942         __le64 LastWriteTime;
 943         __le64 ChangeTime;
 944         __le32 FileAttributes;
 945         __le64 AllocationSize;
 946         __le64 EndOfFile;
 947         __le16 FileType;
 948         __le16 DeviceState;
 949         __u8 DirectoryFlag;
 950         __u8 VolumeGUID[16];
 951         __u64 FileId; /* note no endian conversion - is opaque UniqueID */
 952         __le32 MaximalAccessRights;
 953         __le32 GuestMaximalAccessRights;
 954         __u16 ByteCount;        /* bct = 0 */
 955 } __attribute__((packed)) OPEN_RSP_EXT;
 956
 957
 958 /* format of legacy open request */
 959 typedef struct smb_com_openx_req {
 960         struct smb_hdr  hdr;    /* wct = 15 */
 961         __u8 AndXCommand;
 962         __u8 AndXReserved;
 963         __le16 AndXOffset;
 964         __le16 OpenFlags;
 965         __le16 Mode;
 966         __le16 Sattr; /* search attributes */
 967         __le16 FileAttributes;  /* dos attrs */
 968         __le32 CreateTime; /* os2 format */
 969         __le16 OpenFunction;
 970         __le32 EndOfFile;
 971         __le32 Timeout;
 972         __le32 Reserved;
 973         __le16  ByteCount;  /* file name follows */
 974         char   fileName[1];
 975 } __attribute__((packed)) OPENX_REQ;
 976
 977 typedef struct smb_com_openx_rsp {
 978         struct smb_hdr  hdr;    /* wct = 15 */
 979         __u8 AndXCommand;
 980         __u8 AndXReserved;
 981         __le16 AndXOffset;
 982         __u16  Fid;
 983         __le16 FileAttributes;
 984         __le32 LastWriteTime; /* os2 format */
 985         __le32 EndOfFile;
 986         __le16 Access;
 987         __le16 FileType;
 988         __le16 IPCState;
 989         __le16 Action;
 990         __u32  FileId;
 991         __u16  Reserved;
 992         __u16  ByteCount;
 993 } __attribute__((packed)) OPENX_RSP;
 994
 995 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
 996
 997 /* Legacy write request for older servers */
 998 typedef struct smb_com_writex_req {
 999         struct smb_hdr hdr;     /* wct = 12 */
1000         __u8 AndXCommand;
1001         __u8 AndXReserved;
1002         __le16 AndXOffset;
1003         __u16 Fid;
1004         __le32 OffsetLow;
1005         __u32 Reserved; /* Timeout */
1006         __le16 WriteMode; /* 1 = write through */
1007         __le16 Remaining;
1008         __le16 Reserved2;
1009         __le16 DataLengthLow;
1010         __le16 DataOffset;
1011         __le16 ByteCount;
1012         __u8 Pad;               /* BB check for whether padded to DWORD
1013                                    boundary and optimum performance here */
1014         char Data[0];
1015 } __attribute__((packed)) WRITEX_REQ;
1016
1017 typedef struct smb_com_write_req {
1018         struct smb_hdr hdr;     /* wct = 14 */
1019         __u8 AndXCommand;
1020         __u8 AndXReserved;
1021         __le16 AndXOffset;
1022         __u16 Fid;
1023         __le32 OffsetLow;
1024         __u32 Reserved;
1025         __le16 WriteMode;
1026         __le16 Remaining;
1027         __le16 DataLengthHigh;
1028         __le16 DataLengthLow;
1029         __le16 DataOffset;
1030         __le32 OffsetHigh;
1031         __le16 ByteCount;
1032         __u8 Pad;               /* BB check for whether padded to DWORD
1033                                    boundary and optimum performance here */
1034         char Data[0];
1035 } __attribute__((packed)) WRITE_REQ;
1036
1037 typedef struct smb_com_write_rsp {
1038         struct smb_hdr hdr;     /* wct = 6 */
1039         __u8 AndXCommand;
1040         __u8 AndXReserved;
1041         __le16 AndXOffset;
1042         __le16 Count;
1043         __le16 Remaining;
1044         __le16 CountHigh;
1045         __u16  Reserved;
1046         __u16 ByteCount;
1047 } __attribute__((packed)) WRITE_RSP;
1048
1049 /* legacy read request for older servers */
1050 typedef struct smb_com_readx_req {
1051         struct smb_hdr hdr;     /* wct = 10 */
1052         __u8 AndXCommand;
1053         __u8 AndXReserved;
1054         __le16 AndXOffset;
1055         __u16 Fid;
1056         __le32 OffsetLow;
1057         __le16 MaxCount;
1058         __le16 MinCount;        /* obsolete */
1059         __le32 Reserved;
1060         __le16 Remaining;
1061         __le16 ByteCount;
1062 } __attribute__((packed)) READX_REQ;
1063
1064 typedef struct smb_com_read_req {
1065         struct smb_hdr hdr;     /* wct = 12 */
1066         __u8 AndXCommand;
1067         __u8 AndXReserved;
1068         __le16 AndXOffset;
1069         __u16 Fid;
1070         __le32 OffsetLow;
1071         __le16 MaxCount;
1072         __le16 MinCount;                /* obsolete */
1073         __le32 MaxCountHigh;
1074         __le16 Remaining;
1075         __le32 OffsetHigh;
1076         __le16 ByteCount;
1077 } __attribute__((packed)) READ_REQ;
1078
1079 typedef struct smb_com_read_rsp {
1080         struct smb_hdr hdr;     /* wct = 12 */
1081         __u8 AndXCommand;
1082         __u8 AndXReserved;
1083         __le16 AndXOffset;
1084         __le16 Remaining;
1085         __le16 DataCompactionMode;
1086         __le16 Reserved;
1087         __le16 DataLength;
1088         __le16 DataOffset;
1089         __le16 DataLengthHigh;
1090         __u64 Reserved2;
1091         __u16 ByteCount;
1092         __u8 Pad;               /* BB check for whether padded to DWORD
1093                                    boundary and optimum performance here */
1094         char Data[1];
1095 } __attribute__((packed)) READ_RSP;
1096
1097 typedef struct locking_andx_range {
1098         __le16 Pid;
1099         __le16 Pad;
1100         __le32 OffsetHigh;
1101         __le32 OffsetLow;
1102         __le32 LengthHigh;
1103         __le32 LengthLow;
1104 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1105
1106 #define LOCKING_ANDX_SHARED_LOCK     0x01
1107 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1108 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1109 #define LOCKING_ANDX_CANCEL_LOCK     0x08
1110 #define LOCKING_ANDX_LARGE_FILES     0x10       /* always on for us */
1111
1112 typedef struct smb_com_lock_req {
1113         struct smb_hdr hdr;     /* wct = 8 */
1114         __u8 AndXCommand;
1115         __u8 AndXReserved;
1116         __le16 AndXOffset;
1117         __u16 Fid;
1118         __u8 LockType;
1119         __u8 OplockLevel;
1120         __le32 Timeout;
1121         __le16 NumberOfUnlocks;
1122         __le16 NumberOfLocks;
1123         __le16 ByteCount;
1124         LOCKING_ANDX_RANGE Locks[1];
1125 } __attribute__((packed)) LOCK_REQ;
1126
1127 /* lock type */
1128 #define CIFS_RDLCK      0
1129 #define CIFS_WRLCK      1
1130 #define CIFS_UNLCK      2
1131 typedef struct cifs_posix_lock {
1132         __le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1133         __le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1134         __le32  pid;
1135         __le64  start;
1136         __le64  length;
1137         /* BB what about additional owner info to identify network client */
1138 } __attribute__((packed)) CIFS_POSIX_LOCK;
1139
1140 typedef struct smb_com_lock_rsp {
1141         struct smb_hdr hdr;     /* wct = 2 */
1142         __u8 AndXCommand;
1143         __u8 AndXReserved;
1144         __le16 AndXOffset;
1145         __u16 ByteCount;
1146 } __attribute__((packed)) LOCK_RSP;
1147
1148 typedef struct smb_com_rename_req {
1149         struct smb_hdr hdr;     /* wct = 1 */
1150         __le16 SearchAttributes;        /* target file attributes */
1151         __le16 ByteCount;
1152         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1153         unsigned char OldFileName[1];
1154         /* followed by __u8 BufferFormat2 */
1155         /* followed by NewFileName */
1156 } __attribute__((packed)) RENAME_REQ;
1157
1158         /* copy request flags */
1159 #define COPY_MUST_BE_FILE      0x0001
1160 #define COPY_MUST_BE_DIR       0x0002
1161 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1162 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1163 #define COPY_VERIFY_WRITES     0x0010
1164 #define COPY_TREE              0x0020
1165
1166 typedef struct smb_com_copy_req {
1167         struct smb_hdr hdr;     /* wct = 3 */
1168         __u16 Tid2;
1169         __le16 OpenFunction;
1170         __le16 Flags;
1171         __le16 ByteCount;
1172         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1173         unsigned char OldFileName[1];
1174         /* followed by __u8 BufferFormat2 */
1175         /* followed by NewFileName string */
1176 } __attribute__((packed)) COPY_REQ;
1177
1178 typedef struct smb_com_copy_rsp {
1179         struct smb_hdr hdr;     /* wct = 1 */
1180         __le16 CopyCount;    /* number of files copied */
1181         __u16 ByteCount;    /* may be zero */
1182         __u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1183         unsigned char ErrorFileName[1]; /* only present if error in copy */
1184 } __attribute__((packed)) COPY_RSP;
1185
1186 #define CREATE_HARD_LINK                0x103
1187 #define MOVEFILE_COPY_ALLOWED           0x0002
1188 #define MOVEFILE_REPLACE_EXISTING       0x0001
1189
1190 typedef struct smb_com_nt_rename_req {  /* A5 - also used for create hardlink */
1191         struct smb_hdr hdr;     /* wct = 4 */
1192         __le16 SearchAttributes;        /* target file attributes */
1193         __le16 Flags;           /* spec says Information Level */
1194         __le32 ClusterCount;
1195         __le16 ByteCount;
1196         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1197         unsigned char OldFileName[1];
1198         /* followed by __u8 BufferFormat2 */
1199         /* followed by NewFileName */
1200 } __attribute__((packed)) NT_RENAME_REQ;
1201
1202 typedef struct smb_com_rename_rsp {
1203         struct smb_hdr hdr;     /* wct = 0 */
1204         __u16 ByteCount;        /* bct = 0 */
1205 } __attribute__((packed)) RENAME_RSP;
1206
1207 typedef struct smb_com_delete_file_req {
1208         struct smb_hdr hdr;     /* wct = 1 */
1209         __le16 SearchAttributes;
1210         __le16 ByteCount;
1211         __u8 BufferFormat;      /* 4 = ASCII */
1212         unsigned char fileName[1];
1213 } __attribute__((packed)) DELETE_FILE_REQ;
1214
1215 typedef struct smb_com_delete_file_rsp {
1216         struct smb_hdr hdr;     /* wct = 0 */
1217         __u16 ByteCount;        /* bct = 0 */
1218 } __attribute__((packed)) DELETE_FILE_RSP;
1219
1220 typedef struct smb_com_delete_directory_req {
1221         struct smb_hdr hdr;     /* wct = 0 */
1222         __le16 ByteCount;
1223         __u8 BufferFormat;      /* 4 = ASCII */
1224         unsigned char DirName[1];
1225 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1226
1227 typedef struct smb_com_delete_directory_rsp {
1228         struct smb_hdr hdr;     /* wct = 0 */
1229         __u16 ByteCount;        /* bct = 0 */
1230 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1231
1232 typedef struct smb_com_create_directory_req {
1233         struct smb_hdr hdr;     /* wct = 0 */
1234         __le16 ByteCount;
1235         __u8 BufferFormat;      /* 4 = ASCII */
1236         unsigned char DirName[1];
1237 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1238
1239 typedef struct smb_com_create_directory_rsp {
1240         struct smb_hdr hdr;     /* wct = 0 */
1241         __u16 ByteCount;        /* bct = 0 */
1242 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1243
1244 typedef struct smb_com_query_information_req {
1245         struct smb_hdr hdr;     /* wct = 0 */
1246         __le16 ByteCount;       /* 1 + namelen + 1 */
1247         __u8 BufferFormat;      /* 4 = ASCII */
1248         unsigned char FileName[1];
1249 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1250
1251 typedef struct smb_com_query_information_rsp {
1252         struct smb_hdr hdr;     /* wct = 10 */
1253         __le16 attr;
1254         __le32  last_write_time;
1255         __le32 size;
1256         __u16  reserved[5];
1257         __le16 ByteCount;       /* bcc = 0 */
1258 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1259
1260 typedef struct smb_com_setattr_req {
1261         struct smb_hdr hdr; /* wct = 8 */
1262         __le16 attr;
1263         __le16 time_low;
1264         __le16 time_high;
1265         __le16 reserved[5]; /* must be zero */
1266         __u16  ByteCount;
1267         __u8   BufferFormat; /* 4 = ASCII */
1268         unsigned char fileName[1];
1269 } __attribute__((packed)) SETATTR_REQ;
1270
1271 typedef struct smb_com_setattr_rsp {
1272         struct smb_hdr hdr;     /* wct = 0 */
1273         __u16 ByteCount;        /* bct = 0 */
1274 } __attribute__((packed)) SETATTR_RSP;
1275
1276 /* empty wct response to setattr */
1277
1278 /*******************************************************/
1279 /* NT Transact structure definitions follow            */
1280 /* Currently only ioctl, acl (get security descriptor) */
1281 /* and notify are implemented                          */
1282 /*******************************************************/
1283 typedef struct smb_com_ntransact_req {
1284         struct smb_hdr hdr; /* wct >= 19 */
1285         __u8 MaxSetupCount;
1286         __u16 Reserved;
1287         __le32 TotalParameterCount;
1288         __le32 TotalDataCount;
1289         __le32 MaxParameterCount;
1290         __le32 MaxDataCount;
1291         __le32 ParameterCount;
1292         __le32 ParameterOffset;
1293         __le32 DataCount;
1294         __le32 DataOffset;
1295         __u8 SetupCount; /* four setup words follow subcommand */
1296         /* SNIA spec incorrectly included spurious pad here */
1297         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1298         /* SetupCount words follow then */
1299         __le16 ByteCount;
1300         __u8 Pad[3];
1301         __u8 Parms[0];
1302 } __attribute__((packed)) NTRANSACT_REQ;
1303
1304 typedef struct smb_com_ntransact_rsp {
1305         struct smb_hdr hdr;     /* wct = 18 */
1306         __u8 Reserved[3];
1307         __le32 TotalParameterCount;
1308         __le32 TotalDataCount;
1309         __le32 ParameterCount;
1310         __le32 ParameterOffset;
1311         __le32 ParameterDisplacement;
1312         __le32 DataCount;
1313         __le32 DataOffset;
1314         __le32 DataDisplacement;
1315         __u8 SetupCount;   /* 0 */
1316         __u16 ByteCount;
1317         /* __u8 Pad[3]; */
1318         /* parms and data follow */
1319 } __attribute__((packed)) NTRANSACT_RSP;
1320
1321 typedef struct smb_com_transaction_ioctl_req {
1322         struct smb_hdr hdr;     /* wct = 23 */
1323         __u8 MaxSetupCount;
1324         __u16 Reserved;
1325         __le32 TotalParameterCount;
1326         __le32 TotalDataCount;
1327         __le32 MaxParameterCount;
1328         __le32 MaxDataCount;
1329         __le32 ParameterCount;
1330         __le32 ParameterOffset;
1331         __le32 DataCount;
1332         __le32 DataOffset;
1333         __u8 SetupCount; /* four setup words follow subcommand */
1334         /* SNIA spec incorrectly included spurious pad here */
1335         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1336         __le32 FunctionCode;
1337         __u16 Fid;
1338         __u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1339         __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1340         __le16 ByteCount;
1341         __u8 Pad[3];
1342         __u8 Data[1];
1343 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1344
1345 typedef struct smb_com_transaction_ioctl_rsp {
1346         struct smb_hdr hdr;     /* wct = 19 */
1347         __u8 Reserved[3];
1348         __le32 TotalParameterCount;
1349         __le32 TotalDataCount;
1350         __le32 ParameterCount;
1351         __le32 ParameterOffset;
1352         __le32 ParameterDisplacement;
1353         __le32 DataCount;
1354         __le32 DataOffset;
1355         __le32 DataDisplacement;
1356         __u8 SetupCount;        /* 1 */
1357         __le16 ReturnedDataLen;
1358         __u16 ByteCount;
1359 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1360
1361 #define CIFS_ACL_OWNER 1
1362 #define CIFS_ACL_GROUP 2
1363 #define CIFS_ACL_DACL  4
1364 #define CIFS_ACL_SACL  8
1365
1366 typedef struct smb_com_transaction_qsec_req {
1367         struct smb_hdr hdr;     /* wct = 19 */
1368         __u8 MaxSetupCount;
1369         __u16 Reserved;
1370         __le32 TotalParameterCount;
1371         __le32 TotalDataCount;
1372         __le32 MaxParameterCount;
1373         __le32 MaxDataCount;
1374         __le32 ParameterCount;
1375         __le32 ParameterOffset;
1376         __le32 DataCount;
1377         __le32 DataOffset;
1378         __u8 SetupCount; /* no setup words follow subcommand */
1379         /* SNIA spec incorrectly included spurious pad here */
1380         __le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1381         __le16 ByteCount; /* bcc = 3 + 8 */
1382         __u8 Pad[3];
1383         __u16 Fid;
1384         __u16 Reserved2;
1385         __le32 AclFlags;
1386 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1387
1388
1389 typedef struct smb_com_transaction_ssec_req {
1390         struct smb_hdr hdr;     /* wct = 19 */
1391         __u8 MaxSetupCount;
1392         __u16 Reserved;
1393         __le32 TotalParameterCount;
1394         __le32 TotalDataCount;
1395         __le32 MaxParameterCount;
1396         __le32 MaxDataCount;
1397         __le32 ParameterCount;
1398         __le32 ParameterOffset;
1399         __le32 DataCount;
1400         __le32 DataOffset;
1401         __u8 SetupCount; /* no setup words follow subcommand */
1402         /* SNIA spec incorrectly included spurious pad here */
1403         __le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1404         __le16 ByteCount; /* bcc = 3 + 8 */
1405         __u8 Pad[3];
1406         __u16 Fid;
1407         __u16 Reserved2;
1408         __le32 AclFlags;
1409 } __attribute__((packed)) SET_SEC_DESC_REQ;
1410
1411 typedef struct smb_com_transaction_change_notify_req {
1412         struct smb_hdr hdr;     /* wct = 23 */
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; /* four setup words follow subcommand */
1424         /* SNIA spec incorrectly included spurious pad here */
1425         __le16 SubCommand;/* 4 = Change Notify */
1426         __le32 CompletionFilter;  /* operation to monitor */
1427         __u16 Fid;
1428         __u8 WatchTree;  /* 1 = Monitor subdirectories */
1429         __u8 Reserved2;
1430         __le16 ByteCount;
1431 /*      __u8 Pad[3];*/
1432 /*      __u8 Data[1];*/
1433 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1434
1435 /* BB eventually change to use generic ntransact rsp struct
1436       and validation routine */
1437 typedef struct smb_com_transaction_change_notify_rsp {
1438         struct smb_hdr hdr;     /* wct = 18 */
1439         __u8 Reserved[3];
1440         __le32 TotalParameterCount;
1441         __le32 TotalDataCount;
1442         __le32 ParameterCount;
1443         __le32 ParameterOffset;
1444         __le32 ParameterDisplacement;
1445         __le32 DataCount;
1446         __le32 DataOffset;
1447         __le32 DataDisplacement;
1448         __u8 SetupCount;   /* 0 */
1449         __u16 ByteCount;
1450         /* __u8 Pad[3]; */
1451 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1452 /* Completion Filter flags for Notify */
1453 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1454 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1455 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1456 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1457 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1458 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1459 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1460 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1461 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1462 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1463 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1464 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1465 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1466
1467 #define FILE_ACTION_ADDED               0x00000001
1468 #define FILE_ACTION_REMOVED             0x00000002
1469 #define FILE_ACTION_MODIFIED            0x00000003
1470 #define FILE_ACTION_RENAMED_OLD_NAME    0x00000004
1471 #define FILE_ACTION_RENAMED_NEW_NAME    0x00000005
1472 #define FILE_ACTION_ADDED_STREAM        0x00000006
1473 #define FILE_ACTION_REMOVED_STREAM      0x00000007
1474 #define FILE_ACTION_MODIFIED_STREAM     0x00000008
1475
1476 /* response contains array of the following structures */
1477 struct file_notify_information {
1478         __le32 NextEntryOffset;
1479         __le32 Action;
1480         __le32 FileNameLength;
1481         __u8  FileName[0];
1482 } __attribute__((packed));
1483
1484 struct reparse_data {
1485         __u32   ReparseTag;
1486         __u16   ReparseDataLength;
1487         __u16   Reserved;
1488         __u16   AltNameOffset;
1489         __u16   AltNameLen;
1490         __u16   TargetNameOffset;
1491         __u16   TargetNameLen;
1492         char    LinkNamesBuf[1];
1493 } __attribute__((packed));
1494
1495 struct cifs_quota_data {
1496         __u32   rsrvd1;  /* 0 */
1497         __u32   sid_size;
1498         __u64   rsrvd2;  /* 0 */
1499         __u64   space_used;
1500         __u64   soft_limit;
1501         __u64   hard_limit;
1502         char    sid[1];  /* variable size? */
1503 } __attribute__((packed));
1504
1505 /* quota sub commands */
1506 #define QUOTA_LIST_CONTINUE         0
1507 #define QUOTA_LIST_START        0x100
1508 #define QUOTA_FOR_SID           0x101
1509
1510 struct trans2_req {
1511         /* struct smb_hdr hdr precedes. Set wct = 14+ */
1512         __le16 TotalParameterCount;
1513         __le16 TotalDataCount;
1514         __le16 MaxParameterCount;
1515         __le16 MaxDataCount;
1516         __u8 MaxSetupCount;
1517         __u8 Reserved;
1518         __le16 Flags;
1519         __le32 Timeout;
1520         __u16 Reserved2;
1521         __le16 ParameterCount;
1522         __le16 ParameterOffset;
1523         __le16 DataCount;
1524         __le16 DataOffset;
1525         __u8 SetupCount;
1526         __u8 Reserved3;
1527         __le16 SubCommand; /* 1st setup word - SetupCount words follow */
1528         __le16 ByteCount;
1529 } __attribute__((packed));
1530
1531 struct smb_t2_req {
1532         struct smb_hdr hdr;
1533         struct trans2_req t2_req;
1534 } __attribute__((packed));
1535
1536 struct trans2_resp {
1537         /* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1538         __le16 TotalParameterCount;
1539         __le16 TotalDataCount;
1540         __u16 Reserved;
1541         __le16 ParameterCount;
1542         __le16 ParameterOffset;
1543         __le16 ParameterDisplacement;
1544         __le16 DataCount;
1545         __le16 DataOffset;
1546         __le16 DataDisplacement;
1547         __u8 SetupCount;
1548         __u8 Reserved1;
1549         /* SetupWords[SetupCount];
1550         __u16 ByteCount;
1551         __u16 Reserved2;*/
1552         /* data area follows */
1553 } __attribute__((packed));
1554
1555 struct smb_t2_rsp {
1556         struct smb_hdr hdr;
1557         struct trans2_resp t2_rsp;
1558 } __attribute__((packed));
1559
1560 /* PathInfo/FileInfo infolevels */
1561 #define SMB_INFO_STANDARD                   1
1562 #define SMB_SET_FILE_EA                     2
1563 #define SMB_QUERY_FILE_EA_SIZE              2
1564 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1565 #define SMB_INFO_QUERY_ALL_EAS              4
1566 #define SMB_INFO_IS_NAME_VALID              6
1567 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1568 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1569 #define SMB_QUERY_FILE_EA_INFO          0x103
1570 #define SMB_QUERY_FILE_NAME_INFO        0x104
1571 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1572 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1573 #define SMB_QUERY_FILE_ALL_INFO         0x107
1574 #define SMB_QUERY_ALT_NAME_INFO         0x108
1575 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1576 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1577 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1578 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1579 #define SMB_QUERY_POSIX_ACL             0x204
1580 #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1581 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1582 #define SMB_QUERY_POSIX_PERMISSION      0x207
1583 #define SMB_QUERY_POSIX_LOCK            0x208
1584 /* #define SMB_POSIX_OPEN               0x209 */
1585 /* #define SMB_POSIX_UNLINK             0x20a */
1586 #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1587 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1588 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1589 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1590 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1591 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1592 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1593
1594
1595 #define SMB_SET_FILE_BASIC_INFO         0x101
1596 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1597 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1598 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1599 #define SMB_SET_FILE_UNIX_BASIC         0x200
1600 #define SMB_SET_FILE_UNIX_LINK          0x201
1601 #define SMB_SET_FILE_UNIX_HLINK         0x203
1602 #define SMB_SET_POSIX_ACL               0x204
1603 #define SMB_SET_XATTR                   0x205
1604 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1605 #define SMB_SET_POSIX_LOCK              0x208
1606 #define SMB_POSIX_OPEN                  0x209
1607 #define SMB_POSIX_UNLINK                0x20a
1608 #define SMB_SET_FILE_UNIX_INFO2         0x20b
1609 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1610 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1611 #define SMB_FILE_ALL_INFO2              0x3fa
1612 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1613 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1614 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1615 #define SMB_FILE_QUOTA_INFO             0x408
1616 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1617 #define SMB_FILE_MAXIMUM_INFO           0x40d
1618
1619 /* Find File infolevels */
1620 #define SMB_FIND_FILE_INFO_STANDARD       0x001
1621 #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1622 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1623 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1624 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1625 #define SMB_FIND_FILE_NAMES_INFO          0x103
1626 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1627 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1628 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1629 #define SMB_FIND_FILE_UNIX                0x202
1630
1631 typedef struct smb_com_transaction2_qpi_req {
1632         struct smb_hdr hdr;     /* wct = 14+ */
1633         __le16 TotalParameterCount;
1634         __le16 TotalDataCount;
1635         __le16 MaxParameterCount;
1636         __le16 MaxDataCount;
1637         __u8 MaxSetupCount;
1638         __u8 Reserved;
1639         __le16 Flags;
1640         __le32 Timeout;
1641         __u16 Reserved2;
1642         __le16 ParameterCount;
1643         __le16 ParameterOffset;
1644         __le16 DataCount;
1645         __le16 DataOffset;
1646         __u8 SetupCount;
1647         __u8 Reserved3;
1648         __le16 SubCommand;      /* one setup word */
1649         __le16 ByteCount;
1650         __u8 Pad;
1651         __le16 InformationLevel;
1652         __u32 Reserved4;
1653         char FileName[1];
1654 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1655
1656 typedef struct smb_com_transaction2_qpi_rsp {
1657         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1658         struct trans2_resp t2;
1659         __u16 ByteCount;
1660         __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1661 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1662
1663 typedef struct smb_com_transaction2_spi_req {
1664         struct smb_hdr hdr;     /* wct = 15 */
1665         __le16 TotalParameterCount;
1666         __le16 TotalDataCount;
1667         __le16 MaxParameterCount;
1668         __le16 MaxDataCount;
1669         __u8 MaxSetupCount;
1670         __u8 Reserved;
1671         __le16 Flags;
1672         __le32 Timeout;
1673         __u16 Reserved2;
1674         __le16 ParameterCount;
1675         __le16 ParameterOffset;
1676         __le16 DataCount;
1677         __le16 DataOffset;
1678         __u8 SetupCount;
1679         __u8 Reserved3;
1680         __le16 SubCommand;      /* one setup word */
1681         __le16 ByteCount;
1682         __u8 Pad;
1683         __u16 Pad1;
1684         __le16 InformationLevel;
1685         __u32 Reserved4;
1686         char FileName[1];
1687 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1688
1689 typedef struct smb_com_transaction2_spi_rsp {
1690         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1691         struct trans2_resp t2;
1692         __u16 ByteCount;
1693         __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1694 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1695
1696 struct set_file_rename {
1697         __le32 overwrite;   /* 1 = overwrite dest */
1698         __u32 root_fid;   /* zero */
1699         __le32 target_name_len;
1700         char  target_name[0];  /* Must be unicode */
1701 } __attribute__((packed));
1702
1703 struct smb_com_transaction2_sfi_req {
1704         struct smb_hdr hdr;     /* wct = 15 */
1705         __le16 TotalParameterCount;
1706         __le16 TotalDataCount;
1707         __le16 MaxParameterCount;
1708         __le16 MaxDataCount;
1709         __u8 MaxSetupCount;
1710         __u8 Reserved;
1711         __le16 Flags;
1712         __le32 Timeout;
1713         __u16 Reserved2;
1714         __le16 ParameterCount;
1715         __le16 ParameterOffset;
1716         __le16 DataCount;
1717         __le16 DataOffset;
1718         __u8 SetupCount;
1719         __u8 Reserved3;
1720         __le16 SubCommand;      /* one setup word */
1721         __le16 ByteCount;
1722         __u8 Pad;
1723         __u16 Pad1;
1724         __u16 Fid;
1725         __le16 InformationLevel;
1726         __u16 Reserved4;
1727 } __attribute__((packed));
1728
1729 struct smb_com_transaction2_sfi_rsp {
1730         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1731         struct trans2_resp t2;
1732         __u16 ByteCount;
1733         __u16 Reserved2;        /* parameter word reserved -
1734                                         present for infolevels > 100 */
1735 } __attribute__((packed));
1736
1737 struct smb_t2_qfi_req {
1738         struct  smb_hdr hdr;
1739         struct  trans2_req t2;
1740         __u8    Pad;
1741         __u16   Fid;
1742         __le16  InformationLevel;
1743 } __attribute__((packed));
1744
1745 struct smb_t2_qfi_rsp {
1746         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1747         struct trans2_resp t2;
1748         __u16 ByteCount;
1749         __u16 Reserved2;        /* parameter word reserved -
1750                                    present for infolevels > 100 */
1751 } __attribute__((packed));
1752
1753 /*
1754  * Flags on T2 FINDFIRST and FINDNEXT
1755  */
1756 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1757 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1758 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1759 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1760 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1761
1762 /*
1763  * Size of the resume key on FINDFIRST and FINDNEXT calls
1764  */
1765 #define CIFS_SMB_RESUME_KEY_SIZE 4
1766
1767 typedef struct smb_com_transaction2_ffirst_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;        /* one */
1783         __u8 Reserved3;
1784         __le16 SubCommand;      /* TRANS2_FIND_FIRST */
1785         __le16 ByteCount;
1786         __u8 Pad;
1787         __le16 SearchAttributes;
1788         __le16 SearchCount;
1789         __le16 SearchFlags;
1790         __le16 InformationLevel;
1791         __le32 SearchStorageType;
1792         char FileName[1];
1793 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1794
1795 typedef struct smb_com_transaction2_ffirst_rsp {
1796         struct smb_hdr hdr;     /* wct = 10 */
1797         struct trans2_resp t2;
1798         __u16 ByteCount;
1799 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1800
1801 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1802         __u16 SearchHandle;
1803         __le16 SearchCount;
1804         __le16 EndofSearch;
1805         __le16 EAErrorOffset;
1806         __le16 LastNameOffset;
1807 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1808
1809 typedef struct smb_com_transaction2_fnext_req {
1810         struct smb_hdr hdr;     /* wct = 15 */
1811         __le16 TotalParameterCount;
1812         __le16 TotalDataCount;
1813         __le16 MaxParameterCount;
1814         __le16 MaxDataCount;
1815         __u8 MaxSetupCount;
1816         __u8 Reserved;
1817         __le16 Flags;
1818         __le32 Timeout;
1819         __u16 Reserved2;
1820         __le16 ParameterCount;
1821         __le16 ParameterOffset;
1822         __le16 DataCount;
1823         __le16 DataOffset;
1824         __u8 SetupCount;        /* one */
1825         __u8 Reserved3;
1826         __le16 SubCommand;      /* TRANS2_FIND_NEXT */
1827         __le16 ByteCount;
1828         __u8 Pad;
1829         __u16 SearchHandle;
1830         __le16 SearchCount;
1831         __le16 InformationLevel;
1832         __u32 ResumeKey;
1833         __le16 SearchFlags;
1834         char ResumeFileName[1];
1835 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1836
1837 typedef struct smb_com_transaction2_fnext_rsp {
1838         struct smb_hdr hdr;     /* wct = 10 */
1839         struct trans2_resp t2;
1840         __u16 ByteCount;
1841 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1842
1843 typedef struct smb_com_transaction2_fnext_rsp_parms {
1844         __le16 SearchCount;
1845         __le16 EndofSearch;
1846         __le16 EAErrorOffset;
1847         __le16 LastNameOffset;
1848 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1849
1850 /* QFSInfo Levels */
1851 #define SMB_INFO_ALLOCATION         1
1852 #define SMB_INFO_VOLUME             2
1853 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1854 #define SMB_QUERY_FS_SIZE_INFO      0x103
1855 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1856 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1857 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1858 #define SMB_QUERY_POSIX_FS_INFO     0x201
1859 #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1860 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1861 #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1862                                             FILE_SYSTEM__UNIX_INFO to tell
1863                                             whether new NTIOCTL available
1864                                             (0xACE) for WAN friendly SMB
1865                                             operations to be carried */
1866 #define SMB_QUERY_LABEL_INFO        0x3ea
1867 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1868 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1869 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1870
1871 typedef struct smb_com_transaction2_qfsi_req {
1872         struct smb_hdr hdr;     /* wct = 14+ */
1873         __le16 TotalParameterCount;
1874         __le16 TotalDataCount;
1875         __le16 MaxParameterCount;
1876         __le16 MaxDataCount;
1877         __u8 MaxSetupCount;
1878         __u8 Reserved;
1879         __le16 Flags;
1880         __le32 Timeout;
1881         __u16 Reserved2;
1882         __le16 ParameterCount;
1883         __le16 ParameterOffset;
1884         __le16 DataCount;
1885         __le16 DataOffset;
1886         __u8 SetupCount;
1887         __u8 Reserved3;
1888         __le16 SubCommand;      /* one setup word */
1889         __le16 ByteCount;
1890         __u8 Pad;
1891         __le16 InformationLevel;
1892 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1893
1894 typedef struct smb_com_transaction_qfsi_rsp {
1895         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1896         struct trans2_resp t2;
1897         __u16 ByteCount;
1898         __u8 Pad;       /* may be three bytes? *//* followed by data area */
1899 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1900
1901 typedef struct whoami_rsp_data { /* Query level 0x202 */
1902         __u32 flags; /* 0 = Authenticated user 1 = GUEST */
1903         __u32 mask; /* which flags bits server understands ie 0x0001 */
1904         __u64 unix_user_id;
1905         __u64 unix_user_gid;
1906         __u32 number_of_supplementary_gids; /* may be zero */
1907         __u32 number_of_sids; /* may be zero */
1908         __u32 length_of_sid_array; /* in bytes - may be zero */
1909         __u32 pad; /* reserved - MBZ */
1910         /* __u64 gid_array[0]; */  /* may be empty */
1911         /* __u8 * psid_list */  /* may be empty */
1912 } __attribute__((packed)) WHOAMI_RSP_DATA;
1913
1914 /* SETFSInfo Levels */
1915 #define SMB_SET_CIFS_UNIX_INFO    0x200
1916 typedef struct smb_com_transaction2_setfsi_req {
1917         struct smb_hdr hdr;     /* wct = 15 */
1918         __le16 TotalParameterCount;
1919         __le16 TotalDataCount;
1920         __le16 MaxParameterCount;
1921         __le16 MaxDataCount;
1922         __u8 MaxSetupCount;
1923         __u8 Reserved;
1924         __le16 Flags;
1925         __le32 Timeout;
1926         __u16 Reserved2;
1927         __le16 ParameterCount;  /* 4 */
1928         __le16 ParameterOffset;
1929         __le16 DataCount;       /* 12 */
1930         __le16 DataOffset;
1931         __u8 SetupCount;        /* one */
1932         __u8 Reserved3;
1933         __le16 SubCommand;      /* TRANS2_SET_FS_INFORMATION */
1934         __le16 ByteCount;
1935         __u8 Pad;
1936         __u16 FileNum;          /* Parameters start. */
1937         __le16 InformationLevel;/* Parameters end. */
1938         __le16 ClientUnixMajor; /* Data start. */
1939         __le16 ClientUnixMinor;
1940         __le64 ClientUnixCap;   /* Data end */
1941 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
1942
1943 typedef struct smb_com_transaction2_setfsi_rsp {
1944         struct smb_hdr hdr;     /* wct = 10 */
1945         struct trans2_resp t2;
1946         __u16 ByteCount;
1947 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
1948
1949
1950 typedef struct smb_com_transaction2_get_dfs_refer_req {
1951         struct smb_hdr hdr;     /* wct = 15 */
1952         __le16 TotalParameterCount;
1953         __le16 TotalDataCount;
1954         __le16 MaxParameterCount;
1955         __le16 MaxDataCount;
1956         __u8 MaxSetupCount;
1957         __u8 Reserved;
1958         __le16 Flags;
1959         __le32 Timeout;
1960         __u16 Reserved2;
1961         __le16 ParameterCount;
1962         __le16 ParameterOffset;
1963         __le16 DataCount;
1964         __le16 DataOffset;
1965         __u8 SetupCount;
1966         __u8 Reserved3;
1967         __le16 SubCommand;      /* one setup word */
1968         __le16 ByteCount;
1969         __u8 Pad[3];            /* Win2K has sent 0x0F01 (max response length
1970                                    perhaps?) followed by one byte pad - doesn't
1971                                    seem to matter though */
1972         __le16 MaxReferralLevel;
1973         char RequestFileName[1];
1974 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
1975
1976 #define DFS_VERSION cpu_to_le16(0x0003)
1977
1978 /* DFS server target type */
1979 #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
1980 #define DFS_TYPE_ROOT 0x0001
1981
1982 /* Referral Entry Flags */
1983 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
1984 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
1985
1986 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
1987         __le16 VersionNumber;  /* must be 3 or 4 */
1988         __le16 Size;
1989         __le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
1990         __le16 ReferralEntryFlags;
1991         __le32 TimeToLive;
1992         __le16 DfsPathOffset;
1993         __le16 DfsAlternatePathOffset;
1994         __le16 NetworkAddressOffset; /* offset of the link target */
1995         __u8   ServiceSiteGuid[16];  /* MBZ, ignored */
1996 } __attribute__((packed)) REFERRAL3;
1997
1998 typedef struct smb_com_transaction_get_dfs_refer_rsp {
1999         struct smb_hdr hdr;     /* wct = 10 */
2000         struct trans2_resp t2;
2001         __u16 ByteCount;
2002         __u8 Pad;
2003         __le16 PathConsumed;
2004         __le16 NumberOfReferrals;
2005         __le32 DFSFlags;
2006         REFERRAL3 referrals[1]; /* array of level 3 dfs_referral structures */
2007         /* followed by the strings pointed to by the referral structures */
2008 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_RSP;
2009
2010 /* DFS Flags */
2011 #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2012 #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2013 #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2014
2015 /*
2016  ************************************************************************
2017  * All structs for everything above the SMB PDUs themselves
2018  * (such as the T2 level specific data) go here
2019  ************************************************************************
2020  */
2021
2022 /*
2023  * Information on a server
2024  */
2025
2026 struct serverInfo {
2027         char name[16];
2028         unsigned char versionMajor;
2029         unsigned char versionMinor;
2030         unsigned long type;
2031         unsigned int commentOffset;
2032 } __attribute__((packed));
2033
2034 /*
2035  * The following structure is the format of the data returned on a NetShareEnum
2036  * with level "90" (x5A)
2037  */
2038
2039 struct shareInfo {
2040         char shareName[13];
2041         char pad;
2042         unsigned short type;
2043         unsigned int commentOffset;
2044 } __attribute__((packed));
2045
2046 struct aliasInfo {
2047         char aliasName[9];
2048         char pad;
2049         unsigned int commentOffset;
2050         unsigned char type[2];
2051 } __attribute__((packed));
2052
2053 struct aliasInfo92 {
2054         int aliasNameOffset;
2055         int serverNameOffset;
2056         int shareNameOffset;
2057 } __attribute__((packed));
2058
2059 typedef struct {
2060         __le64 TotalAllocationUnits;
2061         __le64 FreeAllocationUnits;
2062         __le32 SectorsPerAllocationUnit;
2063         __le32 BytesPerSector;
2064 } __attribute__((packed)) FILE_SYSTEM_INFO;     /* size info, level 0x103 */
2065
2066 typedef struct {
2067         __le32 fsid;
2068         __le32 SectorsPerAllocationUnit;
2069         __le32 TotalAllocationUnits;
2070         __le32 FreeAllocationUnits;
2071         __le16  BytesPerSector;
2072 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2073
2074 typedef struct {
2075         __le16 MajorVersionNumber;
2076         __le16 MinorVersionNumber;
2077         __le64 Capability;
2078 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2079
2080 /* Version numbers for CIFS UNIX major and minor. */
2081 #define CIFS_UNIX_MAJOR_VERSION 1
2082 #define CIFS_UNIX_MINOR_VERSION 0
2083
2084 /* Linux/Unix extensions capability flags */
2085 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2086 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2087 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2088 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2089 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2090 #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2091                                                       calls including posix open
2092                                                       and posix unlink */
2093 #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
2094                                                       to 0xFFFF00 */
2095 #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2096 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2097 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2098 #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
2099                                                       QFS PROXY call */
2100 #ifdef CONFIG_CIFS_POSIX
2101 /* Can not set pathnames cap yet until we send new posix create SMB since
2102    otherwise server can treat such handles opened with older ntcreatex
2103    (by a new client which knows how to send posix path ops)
2104    as non-posix handles (can affect write behavior with byte range locks.
2105    We can add back in POSIX_PATH_OPS cap when Posix Create/Mkdir finished */
2106 /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2107 #define CIFS_UNIX_CAP_MASK              0x000000db
2108 #else
2109 #define CIFS_UNIX_CAP_MASK              0x00000013
2110 #endif /* CONFIG_CIFS_POSIX */
2111
2112
2113 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2114
2115 typedef struct {
2116         /* For undefined recommended transfer size return -1 in that field */
2117         __le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2118         __le32 BlockSize;
2119     /* The next three fields are in terms of the block size.
2120         (above). If block size is unknown, 4096 would be a
2121         reasonable block size for a server to report.
2122         Note that returning the blocks/blocksavail removes need
2123         to make a second call (to QFSInfo level 0x103 to get this info.
2124         UserBlockAvail is typically less than or equal to BlocksAvail,
2125         if no distinction is made return the same value in each */
2126         __le64 TotalBlocks;
2127         __le64 BlocksAvail;       /* bfree */
2128         __le64 UserBlocksAvail;   /* bavail */
2129     /* For undefined Node fields or FSID return -1 */
2130         __le64 TotalFileNodes;
2131         __le64 FreeFileNodes;
2132         __le64 FileSysIdentifier;   /* fsid */
2133         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2134         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2135 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2136
2137 /* DeviceType Flags */
2138 #define FILE_DEVICE_CD_ROM              0x00000002
2139 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2140 #define FILE_DEVICE_DFS                 0x00000006
2141 #define FILE_DEVICE_DISK                0x00000007
2142 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2143 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2144 #define FILE_DEVICE_NAMED_PIPE          0x00000011
2145 #define FILE_DEVICE_NETWORK             0x00000012
2146 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2147 #define FILE_DEVICE_NULL                0x00000015
2148 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2149 #define FILE_DEVICE_PRINTER             0x00000018
2150 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2151 #define FILE_DEVICE_STREAMS             0x0000001e
2152 #define FILE_DEVICE_TAPE                0x0000001f
2153 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2154 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2155 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2156
2157 typedef struct {
2158         __le32 DeviceType;
2159         __le32 DeviceCharacteristics;
2160 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2161
2162 typedef struct {
2163         __le32 Attributes;
2164         __le32 MaxPathNameComponentLength;
2165         __le32 FileSystemNameLen;
2166         char FileSystemName[52]; /* do not have to save this - get subset? */
2167 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2168
2169 /******************************************************************************/
2170 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2171 /******************************************************************************/
2172 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2173         __le64 CreationTime;
2174         __le64 LastAccessTime;
2175         __le64 LastWriteTime;
2176         __le64 ChangeTime;
2177         __le32 Attributes;
2178         __u32 Pad1;
2179         __le64 AllocationSize;
2180         __le64 EndOfFile;       /* size ie offset to first free byte in file */
2181         __le32 NumberOfLinks;   /* hard links */
2182         __u8 DeletePending;
2183         __u8 Directory;
2184         __u16 Pad2;
2185         __u64 IndexNumber;
2186         __le32 EASize;
2187         __le32 AccessFlags;
2188         __u64 IndexNumber1;
2189         __le64 CurrentByteOffset;
2190         __le32 Mode;
2191         __le32 AlignmentRequirement;
2192         __le32 FileNameLength;
2193         char FileName[1];
2194 } __attribute__((packed)) FILE_ALL_INFO;        /* level 0x107 QPathInfo */
2195
2196 /* defines for enumerating possible values of the Unix type field below */
2197 #define UNIX_FILE      0
2198 #define UNIX_DIR       1
2199 #define UNIX_SYMLINK   2
2200 #define UNIX_CHARDEV   3
2201 #define UNIX_BLOCKDEV  4
2202 #define UNIX_FIFO      5
2203 #define UNIX_SOCKET    6
2204 typedef struct {
2205         __le64 EndOfFile;
2206         __le64 NumOfBytes;
2207         __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2208         __le64 LastAccessTime;
2209         __le64 LastModificationTime;
2210         __le64 Uid;
2211         __le64 Gid;
2212         __le32 Type;
2213         __le64 DevMajor;
2214         __le64 DevMinor;
2215         __le64 UniqueId;
2216         __le64 Permissions;
2217         __le64 Nlinks;
2218 } __attribute__((packed)) FILE_UNIX_BASIC_INFO; /* level 0x200 QPathInfo */
2219
2220 typedef struct {
2221         char LinkDest[1];
2222 } __attribute__((packed)) FILE_UNIX_LINK_INFO;  /* level 0x201 QPathInfo */
2223
2224 /* The following three structures are needed only for
2225         setting time to NT4 and some older servers via
2226         the primitive DOS time format */
2227 typedef struct {
2228         __u16 Day:5;
2229         __u16 Month:4;
2230         __u16 Year:7;
2231 } __attribute__((packed)) SMB_DATE;
2232
2233 typedef struct {
2234         __u16 TwoSeconds:5;
2235         __u16 Minutes:6;
2236         __u16 Hours:5;
2237 } __attribute__((packed)) SMB_TIME;
2238
2239 typedef struct {
2240         __le16 CreationDate; /* SMB Date see above */
2241         __le16 CreationTime; /* SMB Time */
2242         __le16 LastAccessDate;
2243         __le16 LastAccessTime;
2244         __le16 LastWriteDate;
2245         __le16 LastWriteTime;
2246         __le32 DataSize; /* File Size (EOF) */
2247         __le32 AllocationSize;
2248         __le16 Attributes; /* verify not u32 */
2249         __le32 EASize;
2250 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2251
2252 typedef struct {
2253         __le64 CreationTime;
2254         __le64 LastAccessTime;
2255         __le64 LastWriteTime;
2256         __le64 ChangeTime;
2257         __le32 Attributes;
2258         __u32 Pad;
2259 } __attribute__((packed)) FILE_BASIC_INFO;      /* size info, level 0x101 */
2260
2261 struct file_allocation_info {
2262         __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2263 } __attribute__((packed));      /* size used on disk, for level 0x103 for set,
2264                                    0x105 for query */
2265
2266 struct file_end_of_file_info {
2267         __le64 FileSize;                /* offset to end of file */
2268 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2269
2270 struct file_alt_name_info {
2271         __u8   alt_name[1];
2272 } __attribute__((packed));      /* level 0x0108 */
2273
2274 struct file_stream_info {
2275         __le32 number_of_streams;  /* BB check sizes and verify location */
2276         /* followed by info on streams themselves
2277                 u64 size;
2278                 u64 allocation_size
2279                 stream info */
2280 };      /* level 0x109 */
2281
2282 struct file_compression_info {
2283         __le64 compressed_size;
2284         __le16 format;
2285         __u8   unit_shift;
2286         __u8   ch_shift;
2287         __u8   cl_shift;
2288         __u8   pad[3];
2289 } __attribute__((packed));      /* level 0x10b */
2290
2291 /* POSIX ACL set/query path info structures */
2292 #define CIFS_ACL_VERSION 1
2293 struct cifs_posix_ace { /* access control entry (ACE) */
2294         __u8  cifs_e_tag;
2295         __u8  cifs_e_perm;
2296         __le64 cifs_uid; /* or gid */
2297 } __attribute__((packed));
2298
2299 struct cifs_posix_acl { /* access conrol list  (ACL) */
2300         __le16  version;
2301         __le16  access_entry_count;  /* access ACL - count of entries */
2302         __le16  default_entry_count; /* default ACL - count of entries */
2303         struct cifs_posix_ace ace_array[0];
2304         /* followed by
2305         struct cifs_posix_ace default_ace_arraay[] */
2306 } __attribute__((packed));  /* level 0x204 */
2307
2308 /* types of access control entries already defined in posix_acl.h */
2309 /* #define CIFS_POSIX_ACL_USER_OBJ       0x01
2310 #define CIFS_POSIX_ACL_USER      0x02
2311 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2312 #define CIFS_POSIX_ACL_GROUP     0x08
2313 #define CIFS_POSIX_ACL_MASK      0x10
2314 #define CIFS_POSIX_ACL_OTHER     0x20 */
2315
2316 /* types of perms */
2317 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2318 #define CIFS_POSIX_ACL_WRITE     0x02
2319 #define CIFS_POSIX_ACL_READ          0x04 */
2320
2321 /* end of POSIX ACL definitions */
2322
2323 /* POSIX Open Flags */
2324 #define SMB_O_RDONLY     0x1
2325 #define SMB_O_WRONLY    0x2
2326 #define SMB_O_RDWR      0x4
2327 #define SMB_O_CREAT     0x10
2328 #define SMB_O_EXCL      0x20
2329 #define SMB_O_TRUNC     0x40
2330 #define SMB_O_APPEND    0x80
2331 #define SMB_O_SYNC      0x100
2332 #define SMB_O_DIRECTORY 0x200
2333 #define SMB_O_NOFOLLOW  0x400
2334 #define SMB_O_DIRECT    0x800
2335
2336 typedef struct {
2337         __le32 OpenFlags; /* same as NT CreateX */
2338         __le32 PosixOpenFlags;
2339         __le64 Permissions;
2340         __le16 Level; /* reply level requested (see QPathInfo levels) */
2341 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2342
2343 typedef struct {
2344         __le16 OplockFlags;
2345         __u16 Fid;
2346         __le32 CreateAction;
2347         __le16 ReturnedLevel;
2348         __le16 Pad;
2349         /* struct following varies based on requested level */
2350 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2351
2352 #define SMB_POSIX_UNLINK_FILE_TARGET            0
2353 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET       1
2354
2355 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2356         __le16 type;
2357 } __attribute__((packed));
2358
2359 struct file_internal_info {
2360         __le64  UniqueId; /* inode number */
2361 } __attribute__((packed));      /* level 0x3ee */
2362
2363 struct file_mode_info {
2364         __le32  Mode;
2365 } __attribute__((packed));      /* level 0x3f8 */
2366
2367 struct file_attrib_tag {
2368         __le32 Attribute;
2369         __le32 ReparseTag;
2370 } __attribute__((packed));      /* level 0x40b */
2371
2372
2373 /********************************************************/
2374 /*  FindFirst/FindNext transact2 data buffer formats    */
2375 /********************************************************/
2376
2377 typedef struct {
2378         __le32 NextEntryOffset;
2379         __u32 ResumeKey; /* as with FileIndex - no need to convert */
2380         FILE_UNIX_BASIC_INFO basic;
2381         char FileName[1];
2382 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2383
2384 typedef struct {
2385         __le32 NextEntryOffset;
2386         __u32 FileIndex;
2387         __le64 CreationTime;
2388         __le64 LastAccessTime;
2389         __le64 LastWriteTime;
2390         __le64 ChangeTime;
2391         __le64 EndOfFile;
2392         __le64 AllocationSize;
2393         __le32 ExtFileAttributes;
2394         __le32 FileNameLength;
2395         char FileName[1];
2396 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
2397
2398 typedef struct {
2399         __le32 NextEntryOffset;
2400         __u32 FileIndex;
2401         __le64 CreationTime;
2402         __le64 LastAccessTime;
2403         __le64 LastWriteTime;
2404         __le64 ChangeTime;
2405         __le64 EndOfFile;
2406         __le64 AllocationSize;
2407         __le32 ExtFileAttributes;
2408         __le32 FileNameLength;
2409         __le32 EaSize; /* length of the xattrs */
2410         char FileName[1];
2411 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2412
2413 typedef struct {
2414         __le32 NextEntryOffset;
2415         __u32 FileIndex;
2416         __le64 CreationTime;
2417         __le64 LastAccessTime;
2418         __le64 LastWriteTime;
2419         __le64 ChangeTime;
2420         __le64 EndOfFile;
2421         __le64 AllocationSize;
2422         __le32 ExtFileAttributes;
2423         __le32 FileNameLength;
2424         __le32 EaSize; /* EA size */
2425         __le32 Reserved;
2426         __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2427         char FileName[1];
2428 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2429
2430 typedef struct {
2431         __le32 NextEntryOffset;
2432         __u32 FileIndex;
2433         __le64 CreationTime;
2434         __le64 LastAccessTime;
2435         __le64 LastWriteTime;
2436         __le64 ChangeTime;
2437         __le64 EndOfFile;
2438         __le64 AllocationSize;
2439         __le32 ExtFileAttributes;
2440         __le32 FileNameLength;
2441         __le32 EaSize; /* length of the xattrs */
2442         __u8   ShortNameLength;
2443         __u8   Reserved;
2444         __u8   ShortName[12];
2445         char FileName[1];
2446 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2447
2448 typedef struct {
2449         __u32  ResumeKey;
2450         __le16 CreationDate; /* SMB Date */
2451         __le16 CreationTime; /* SMB Time */
2452         __le16 LastAccessDate;
2453         __le16 LastAccessTime;
2454         __le16 LastWriteDate;
2455         __le16 LastWriteTime;
2456         __le32 DataSize; /* File Size (EOF) */
2457         __le32 AllocationSize;
2458         __le16 Attributes; /* verify not u32 */
2459         __u8   FileNameLength;
2460         char FileName[1];
2461 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2462
2463
2464 struct win_dev {
2465         unsigned char type[8]; /* IntxCHR or IntxBLK */
2466         __le64 major;
2467         __le64 minor;
2468 } __attribute__((packed));
2469
2470 struct gea {
2471         unsigned char name_len;
2472         char name[1];
2473 } __attribute__((packed));
2474
2475 struct gealist {
2476         unsigned long list_len;
2477         struct gea list[1];
2478 } __attribute__((packed));
2479
2480 struct fea {
2481         unsigned char EA_flags;
2482         __u8 name_len;
2483         __le16 value_len;
2484         char name[1];
2485         /* optionally followed by value */
2486 } __attribute__((packed));
2487 /* flags for _FEA.fEA */
2488 #define FEA_NEEDEA         0x80 /* need EA bit */
2489
2490 struct fealist {
2491         __le32 list_len;
2492         struct fea list[1];
2493 } __attribute__((packed));
2494
2495 /* used to hold an arbitrary blob of data */
2496 struct data_blob {
2497         __u8 *data;
2498         size_t length;
2499         void (*free) (struct data_blob *data_blob);
2500 } __attribute__((packed));
2501
2502
2503 #ifdef CONFIG_CIFS_POSIX
2504 /*
2505         For better POSIX semantics from Linux client, (even better
2506         than the existing CIFS Unix Extensions) we need updated PDUs for:
2507
2508         1) PosixCreateX - to set and return the mode, inode#, device info and
2509         perhaps add a CreateDevice - to create Pipes and other special .inodes
2510         Also note POSIX open flags
2511         2) Close - to return the last write time to do cache across close
2512                 more safely
2513         3) FindFirst return unique inode number - what about resume key, two
2514         forms short (matches readdir) and full (enough info to cache inodes)
2515         4) Mkdir - set mode
2516
2517         And under consideration:
2518         5) FindClose2 (return nanosecond timestamp ??)
2519         6) Use nanosecond timestamps throughout all time fields if
2520            corresponding attribute flag is set
2521         7) sendfile - handle based copy
2522
2523         what about fixing 64 bit alignment
2524
2525         There are also various legacy SMB/CIFS requests used as is
2526
2527         From existing Lanman and NTLM dialects:
2528         --------------------------------------
2529         NEGOTIATE
2530         SESSION_SETUP_ANDX (BB which?)
2531         TREE_CONNECT_ANDX (BB which wct?)
2532         TREE_DISCONNECT (BB add volume timestamp on response)
2533         LOGOFF_ANDX
2534         DELETE (note delete open file behavior)
2535         DELETE_DIRECTORY
2536         READ_AND_X
2537         WRITE_AND_X
2538         LOCKING_AND_X (note posix lock semantics)
2539         RENAME (note rename across dirs and open file rename posix behaviors)
2540         NT_RENAME (for hardlinks) Is this good enough for all features?
2541         FIND_CLOSE2
2542         TRANSACTION2 (18 cases)
2543                 SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2544                 (BB verify that never need to set allocation size)
2545                 SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2546                          Unix ext?)
2547
2548         COPY (note support for copy across directories) - FUTURE, OPTIONAL
2549         setting/getting OS/2 EAs - FUTURE (BB can this handle
2550         setting Linux xattrs perfectly)         - OPTIONAL
2551         dnotify                                 - FUTURE, OPTIONAL
2552         quota                                   - FUTURE, OPTIONAL
2553
2554         Note that various requests implemented for NT interop such as
2555                 NT_TRANSACT (IOCTL) QueryReparseInfo
2556         are unneeded to servers compliant with the CIFS POSIX extensions
2557
2558         From CIFS Unix Extensions:
2559         -------------------------
2560         T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2561         T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2562         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2563         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)  BB check for missing
2564                                                         inode fields
2565                                 Actually a need QUERY_FILE_UNIX_INFO
2566                                 since has inode num
2567                                 BB what about a) blksize/blkbits/blocks
2568                                                           b) i_version
2569                                                           c) i_rdev
2570                                                           d) notify mask?
2571                                                           e) generation
2572                                                           f) size_seqcount
2573         T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2574         TRANS2_GET_DFS_REFERRAL               - OPTIONAL but recommended
2575         T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2576  */
2577
2578 /* xsymlink is a symlink format (used by MacOS) that can be used
2579    to save symlink info in a regular file when
2580    mounted to operating systems that do not
2581    support the cifs Unix extensions or EAs (for xattr
2582    based symlinks).  For such a file to be recognized
2583    as containing symlink data:
2584
2585    1) file size must be 1067,
2586    2) signature must begin file data,
2587    3) length field must be set to ASCII representation
2588         of a number which is less than or equal to 1024,
2589    4) md5 must match that of the path data */
2590
2591 struct xsymlink {
2592         /* 1067 bytes */
2593         char signature[4]; /* XSym */ /* not null terminated */
2594         char cr0;         /* \n */
2595 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2596         char length[4];
2597         char cr1;         /* \n */
2598 /* md5 of valid subset of path ie path[0] through path[length-1] */
2599         __u8 md5[32];
2600         char cr2;        /* \n */
2601 /* if room left, then end with \n then 0x20s by convention but not required */
2602         char path[1024];
2603 } __attribute__((packed));
2604
2605 typedef struct file_xattr_info {
2606         /* BB do we need another field for flags? BB */
2607         __u32 xattr_name_len;
2608         __u32 xattr_value_len;
2609         char  xattr_name[0];
2610         /* followed by xattr_value[xattr_value_len], no pad */
2611 } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2612                                               level 0x205 */
2613
2614
2615 /* flags for chattr command */
2616 #define EXT_SECURE_DELETE               0x00000001 /* EXT3_SECRM_FL */
2617 #define EXT_ENABLE_UNDELETE             0x00000002 /* EXT3_UNRM_FL */
2618 /* Reserved for compress file 0x4 */
2619 #define EXT_SYNCHRONOUS                 0x00000008 /* EXT3_SYNC_FL */
2620 #define EXT_IMMUTABLE_FL                0x00000010 /* EXT3_IMMUTABLE_FL */
2621 #define EXT_OPEN_APPEND_ONLY            0x00000020 /* EXT3_APPEND_FL */
2622 #define EXT_DO_NOT_BACKUP               0x00000040 /* EXT3_NODUMP_FL */
2623 #define EXT_NO_UPDATE_ATIME             0x00000080 /* EXT3_NOATIME_FL */
2624 /* 0x100 through 0x800 reserved for compression flags and are GET-ONLY */
2625 #define EXT_HASH_TREE_INDEXED_DIR       0x00001000 /* GET-ONLY EXT3_INDEX_FL */
2626 /* 0x2000 reserved for IMAGIC_FL */
2627 #define EXT_JOURNAL_THIS_FILE   0x00004000 /* GET-ONLY EXT3_JOURNAL_DATA_FL */
2628 /* 0x8000 reserved for EXT3_NOTAIL_FL */
2629 #define EXT_SYNCHRONOUS_DIR             0x00010000 /* EXT3_DIRSYNC_FL */
2630 #define EXT_TOPDIR                      0x00020000 /* EXT3_TOPDIR_FL */
2631
2632 #define EXT_SET_MASK                    0x000300FF
2633 #define EXT_GET_MASK                    0x0003DFFF
2634
2635 typedef struct file_chattr_info {
2636         __le64  mask; /* list of all possible attribute bits */
2637         __le64  mode; /* list of actual attribute bits on this inode */
2638 } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
2639                                                 (chattr, chflags) level 0x206 */
2640 #endif                          /* POSIX */
2641 #endif                          /* _CIFSPDU_H */