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         __u32 smb_buf_length;   /* big endian on wire *//* BB length is only two
 401                 or three bytes - with one or two byte type preceding it that are
 402                 zero - we could mask the type byte off just in case BB */
 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 char pointer to the byte count */
 432 #define BCC(smb_var) ((unsigned char *)(smb_var) + sizeof(struct smb_hdr) + \
 433                          (2 * (smb_var)->WordCount))
 434
 435 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
 436 #define pByteArea(smb_var) (BCC(smb_var) + 2)
 437
 438 /* get the converted ByteCount for a SMB packet and return it */
 439 static inline __u16
 440 get_bcc(struct smb_hdr *hdr)
 441 {
 442         __u16 *bc_ptr = (__u16 *)BCC(hdr);
 443
 444         return get_unaligned(bc_ptr);
 445 }
 446
 447 /* get the unconverted ByteCount for a SMB packet and return it */
 448 static inline __u16
 449 get_bcc_le(struct smb_hdr *hdr)
 450 {
 451         __le16 *bc_ptr = (__le16 *)BCC(hdr);
 452
 453         return get_unaligned_le16(bc_ptr);
 454 }
 455
 456 /* set the ByteCount for a SMB packet in host-byte order */
 457 static inline void
 458 put_bcc(__u16 count, struct smb_hdr *hdr)
 459 {
 460         __u16 *bc_ptr = (__u16 *)BCC(hdr);
 461
 462         put_unaligned(count, bc_ptr);
 463 }
 464
 465 /* set the ByteCount for a SMB packet in little-endian */
 466 static inline void
 467 put_bcc_le(__u16 count, struct smb_hdr *hdr)
 468 {
 469         __le16 *bc_ptr = (__le16 *)BCC(hdr);
 470
 471         put_unaligned_le16(count, bc_ptr);
 472 }
 473
 474 /*
 475  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
 476  * No longer as important, now that TCP names are more commonly used to
 477  * resolve hosts.
 478  */
 479 #define CNLEN 15
 480
 481 /*
 482  * Share Name Length (SNLEN)
 483  * Note:  This length was limited by the SMB used to get
 484  *        the Share info.   NetShareEnum only returned 13
 485  *        chars, including the null termination.
 486  * This was removed because it no longer is limiting.
 487  */
 488
 489 /*
 490  * Comment Length
 491  */
 492 #define MAXCOMMENTLEN 40
 493
 494 /*
 495  * The OS/2 maximum path name
 496  */
 497 #define MAX_PATHCONF 256
 498
 499 /*
 500  *  SMB frame definitions  (following must be packed structs)
 501  *  See the SNIA CIFS Specification for details.
 502  *
 503  *  The Naming convention is the lower case version of the
 504  *  smb command code name for the struct and this is typedef to the
 505  *  uppercase version of the same name with the prefix SMB_ removed
 506  *  for brevity.  Although typedefs are not commonly used for
 507  *  structure definitions in the Linux kernel, their use in the
 508  *  CIFS standards document, which this code is based on, may
 509  *  make this one of the cases where typedefs for structures make
 510  *  sense to improve readability for readers of the standards doc.
 511  *  Typedefs can always be removed later if they are too distracting
 512  *  and they are only used for the CIFSs PDUs themselves, not
 513  *  internal cifs vfs structures
 514  *
 515  */
 516
 517 typedef struct negotiate_req {
 518         struct smb_hdr hdr;     /* wct = 0 */
 519         __le16 ByteCount;
 520         unsigned char DialectsArray[1];
 521 } __attribute__((packed)) NEGOTIATE_REQ;
 522
 523 /* Dialect index is 13 for LANMAN */
 524
 525 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
 526
 527 typedef struct lanman_neg_rsp {
 528         struct smb_hdr hdr;     /* wct = 13 */
 529         __le16 DialectIndex;
 530         __le16 SecurityMode;
 531         __le16 MaxBufSize;
 532         __le16 MaxMpxCount;
 533         __le16 MaxNumberVcs;
 534         __le16 RawMode;
 535         __le32 SessionKey;
 536         struct {
 537                 __le16 Time;
 538                 __le16 Date;
 539         } __attribute__((packed)) SrvTime;
 540         __le16 ServerTimeZone;
 541         __le16 EncryptionKeyLength;
 542         __le16 Reserved;
 543         __u16  ByteCount;
 544         unsigned char EncryptionKey[1];
 545 } __attribute__((packed)) LANMAN_NEG_RSP;
 546
 547 #define READ_RAW_ENABLE 1
 548 #define WRITE_RAW_ENABLE 2
 549 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
 550
 551 typedef struct negotiate_rsp {
 552         struct smb_hdr hdr;     /* wct = 17 */
 553         __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
 554         __u8 SecurityMode;
 555         __le16 MaxMpxCount;
 556         __le16 MaxNumberVcs;
 557         __le32 MaxBufferSize;
 558         __le32 MaxRawSize;
 559         __le32 SessionKey;
 560         __le32 Capabilities;    /* see below */
 561         __le32 SystemTimeLow;
 562         __le32 SystemTimeHigh;
 563         __le16 ServerTimeZone;
 564         __u8 EncryptionKeyLength;
 565         __u16 ByteCount;
 566         union {
 567                 unsigned char EncryptionKey[1]; /* cap extended security off */
 568                 /* followed by Domain name - if extended security is off */
 569                 /* followed by 16 bytes of server GUID */
 570                 /* then security blob if cap_extended_security negotiated */
 571                 struct {
 572                         unsigned char GUID[16];
 573                         unsigned char SecurityBlob[1];
 574                 } __attribute__((packed)) extended_response;
 575         } __attribute__((packed)) u;
 576 } __attribute__((packed)) NEGOTIATE_RSP;
 577
 578 /* SecurityMode bits */
 579 #define SECMODE_USER          0x01      /* off indicates share level security */
 580 #define SECMODE_PW_ENCRYPT    0x02
 581 #define SECMODE_SIGN_ENABLED  0x04      /* SMB security signatures enabled */
 582 #define SECMODE_SIGN_REQUIRED 0x08      /* SMB security signatures required */
 583
 584 /* Negotiate response Capabilities */
 585 #define CAP_RAW_MODE           0x00000001
 586 #define CAP_MPX_MODE           0x00000002
 587 #define CAP_UNICODE            0x00000004
 588 #define CAP_LARGE_FILES        0x00000008
 589 #define CAP_NT_SMBS            0x00000010       /* implies CAP_NT_FIND */
 590 #define CAP_RPC_REMOTE_APIS    0x00000020
 591 #define CAP_STATUS32           0x00000040
 592 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 593 #define CAP_LOCK_AND_READ      0x00000100
 594 #define CAP_NT_FIND            0x00000200
 595 #define CAP_DFS                0x00001000
 596 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
 597 #define CAP_LARGE_READ_X       0x00004000
 598 #define CAP_LARGE_WRITE_X      0x00008000
 599 #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
 600 #define CAP_UNIX               0x00800000
 601 #define CAP_COMPRESSED_DATA    0x02000000
 602 #define CAP_DYNAMIC_REAUTH     0x20000000
 603 #define CAP_PERSISTENT_HANDLES 0x40000000
 604 #define CAP_EXTENDED_SECURITY  0x80000000
 605
 606 typedef union smb_com_session_setup_andx {
 607         struct {                /* request format */
 608                 struct smb_hdr hdr;     /* wct = 12 */
 609                 __u8 AndXCommand;
 610                 __u8 AndXReserved;
 611                 __le16 AndXOffset;
 612                 __le16 MaxBufferSize;
 613                 __le16 MaxMpxCount;
 614                 __le16 VcNumber;
 615                 __u32 SessionKey;
 616                 __le16 SecurityBlobLength;
 617                 __u32 Reserved;
 618                 __le32 Capabilities;    /* see below */
 619                 __le16 ByteCount;
 620                 unsigned char SecurityBlob[1];  /* followed by */
 621                 /* STRING NativeOS */
 622                 /* STRING NativeLanMan */
 623         } __attribute__((packed)) req;  /* NTLM request format (with
 624                                         extended security */
 625
 626         struct {                /* request format */
 627                 struct smb_hdr hdr;     /* wct = 13 */
 628                 __u8 AndXCommand;
 629                 __u8 AndXReserved;
 630                 __le16 AndXOffset;
 631                 __le16 MaxBufferSize;
 632                 __le16 MaxMpxCount;
 633                 __le16 VcNumber;
 634                 __u32 SessionKey;
 635                 __le16 CaseInsensitivePasswordLength; /* ASCII password len */
 636                 __le16 CaseSensitivePasswordLength; /* Unicode password length*/
 637                 __u32 Reserved; /* see below */
 638                 __le32 Capabilities;
 639                 __le16 ByteCount;
 640                 unsigned char CaseInsensitivePassword[1];     /* followed by: */
 641                 /* unsigned char * CaseSensitivePassword; */
 642                 /* STRING AccountName */
 643                 /* STRING PrimaryDomain */
 644                 /* STRING NativeOS */
 645                 /* STRING NativeLanMan */
 646         } __attribute__((packed)) req_no_secext; /* NTLM request format (without
 647                                                         extended security */
 648
 649         struct {                /* default (NTLM) response format */
 650                 struct smb_hdr hdr;     /* wct = 4 */
 651                 __u8 AndXCommand;
 652                 __u8 AndXReserved;
 653                 __le16 AndXOffset;
 654                 __le16 Action;  /* see below */
 655                 __le16 SecurityBlobLength;
 656                 __u16 ByteCount;
 657                 unsigned char SecurityBlob[1];  /* followed by */
 658 /*      unsigned char  * NativeOS;      */
 659 /*      unsigned char  * NativeLanMan;  */
 660 /*      unsigned char  * PrimaryDomain; */
 661         } __attribute__((packed)) resp; /* NTLM response
 662                                            (with or without extended sec) */
 663
 664         struct {                /* request format */
 665                 struct smb_hdr hdr;     /* wct = 10 */
 666                 __u8 AndXCommand;
 667                 __u8 AndXReserved;
 668                 __le16 AndXOffset;
 669                 __le16 MaxBufferSize;
 670                 __le16 MaxMpxCount;
 671                 __le16 VcNumber;
 672                 __u32 SessionKey;
 673                 __le16 PasswordLength;
 674                 __u32 Reserved; /* encrypt key len and offset */
 675                 __le16 ByteCount;
 676                 unsigned char AccountPassword[1];       /* followed by */
 677                 /* STRING AccountName */
 678                 /* STRING PrimaryDomain */
 679                 /* STRING NativeOS */
 680                 /* STRING NativeLanMan */
 681         } __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
 682
 683         struct {                /* default (NTLM) response format */
 684                 struct smb_hdr hdr;     /* wct = 3 */
 685                 __u8 AndXCommand;
 686                 __u8 AndXReserved;
 687                 __le16 AndXOffset;
 688                 __le16 Action;  /* see below */
 689                 __u16 ByteCount;
 690                 unsigned char NativeOS[1];      /* followed by */
 691 /*      unsigned char * NativeLanMan; */
 692 /*      unsigned char * PrimaryDomain; */
 693         } __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
 694 } __attribute__((packed)) SESSION_SETUP_ANDX;
 695
 696 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
 697
 698 #define NTLMSSP_SERVER_TYPE     1
 699 #define NTLMSSP_DOMAIN_TYPE     2
 700 #define NTLMSSP_FQ_DOMAIN_TYPE  3
 701 #define NTLMSSP_DNS_DOMAIN_TYPE 4
 702 #define NTLMSSP_DNS_PARENT_TYPE 5
 703
 704 struct ntlmssp2_name {
 705         __le16 type;
 706         __le16 length;
 707 /*      char   name[length]; */
 708 } __attribute__((packed));
 709
 710 struct ntlmv2_resp {
 711         char ntlmv2_hash[CIFS_ENCPWD_SIZE];
 712         __le32 blob_signature;
 713         __u32  reserved;
 714         __le64  time;
 715         __u64  client_chal; /* random */
 716         __u32  reserved2;
 717         /* array of name entries could follow ending in minimum 4 byte struct */
 718 } __attribute__((packed));
 719
 720
 721 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
 722
 723 /* Capabilities bits (for NTLM SessSetup request) */
 724 #define CAP_UNICODE            0x00000004
 725 #define CAP_LARGE_FILES        0x00000008
 726 #define CAP_NT_SMBS            0x00000010
 727 #define CAP_STATUS32           0x00000040
 728 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 729 #define CAP_NT_FIND            0x00000200       /* reserved should be zero
 730                                 (because NT_SMBs implies the same thing?) */
 731 #define CAP_BULK_TRANSFER      0x20000000
 732 #define CAP_EXTENDED_SECURITY  0x80000000
 733
 734 /* Action bits */
 735 #define GUEST_LOGIN 1
 736
 737 typedef struct smb_com_tconx_req {
 738         struct smb_hdr hdr;     /* wct = 4 */
 739         __u8 AndXCommand;
 740         __u8 AndXReserved;
 741         __le16 AndXOffset;
 742         __le16 Flags;           /* see below */
 743         __le16 PasswordLength;
 744         __le16 ByteCount;
 745         unsigned char Password[1];      /* followed by */
 746 /* STRING Path    *//* \\server\share name */
 747         /* STRING Service */
 748 } __attribute__((packed)) TCONX_REQ;
 749
 750 typedef struct smb_com_tconx_rsp {
 751         struct smb_hdr hdr;     /* wct = 3 , not extended response */
 752         __u8 AndXCommand;
 753         __u8 AndXReserved;
 754         __le16 AndXOffset;
 755         __le16 OptionalSupport; /* see below */
 756         __u16 ByteCount;
 757         unsigned char Service[1];       /* always ASCII, not Unicode */
 758         /* STRING NativeFileSystem */
 759 } __attribute__((packed)) TCONX_RSP;
 760
 761 typedef struct smb_com_tconx_rsp_ext {
 762         struct smb_hdr hdr;     /* wct = 7, extended response */
 763         __u8 AndXCommand;
 764         __u8 AndXReserved;
 765         __le16 AndXOffset;
 766         __le16 OptionalSupport; /* see below */
 767         __le32 MaximalShareAccessRights;
 768         __le32 GuestMaximalShareAccessRights;
 769         __u16 ByteCount;
 770         unsigned char Service[1];       /* always ASCII, not Unicode */
 771         /* STRING NativeFileSystem */
 772 } __attribute__((packed)) TCONX_RSP_EXT;
 773
 774
 775 /* tree connect Flags */
 776 #define DISCONNECT_TID          0x0001
 777 #define TCON_EXTENDED_SIGNATURES 0x0004
 778 #define TCON_EXTENDED_SECINFO   0x0008
 779
 780 /* OptionalSupport bits */
 781 #define SMB_SUPPORT_SEARCH_BITS 0x0001  /* "must have" directory search bits
 782                                          (exclusive searches supported) */
 783 #define SMB_SHARE_IS_IN_DFS     0x0002
 784 #define SMB_CSC_MASK               0x000C
 785 /* CSC flags defined as follows */
 786 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
 787 #define SMB_CSC_CACHE_AUTO_REINT   0x0004
 788 #define SMB_CSC_CACHE_VDO          0x0008
 789 #define SMB_CSC_NO_CACHING         0x000C
 790 #define SMB_UNIQUE_FILE_NAME    0x0010
 791 #define SMB_EXTENDED_SIGNATURES 0x0020
 792
 793 /* services
 794  *
 795  * A:       ie disk
 796  * LPT1:    ie printer
 797  * IPC      ie named pipe
 798  * COMM
 799  * ?????    ie any type
 800  *
 801  */
 802
 803 typedef struct smb_com_echo_req {
 804         struct  smb_hdr hdr;
 805         __le16  EchoCount;
 806         __le16  ByteCount;
 807         char    Data[1];
 808 } __attribute__((packed)) ECHO_REQ;
 809
 810 typedef struct smb_com_echo_rsp {
 811         struct  smb_hdr hdr;
 812         __le16  SequenceNumber;
 813         __le16  ByteCount;
 814         char    Data[1];
 815 } __attribute__((packed)) ECHO_RSP;
 816
 817 typedef struct smb_com_logoff_andx_req {
 818         struct smb_hdr hdr;     /* wct = 2 */
 819         __u8 AndXCommand;
 820         __u8 AndXReserved;
 821         __u16 AndXOffset;
 822         __u16 ByteCount;
 823 } __attribute__((packed)) LOGOFF_ANDX_REQ;
 824
 825 typedef struct smb_com_logoff_andx_rsp {
 826         struct smb_hdr hdr;     /* wct = 2 */
 827         __u8 AndXCommand;
 828         __u8 AndXReserved;
 829         __u16 AndXOffset;
 830         __u16 ByteCount;
 831 } __attribute__((packed)) LOGOFF_ANDX_RSP;
 832
 833 typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on
 834                                         tree_connect PDU to effect disconnect */
 835                                         /* tdis is probably simplest SMB PDU */
 836         struct {
 837                 struct smb_hdr hdr;     /* wct = 0 */
 838                 __u16 ByteCount;        /* bcc = 0 */
 839         } __attribute__((packed)) req;
 840         struct {
 841                 struct smb_hdr hdr;     /* wct = 0 */
 842                 __u16 ByteCount;        /* bcc = 0 */
 843         } __attribute__((packed)) resp;
 844 } __attribute__((packed)) TREE_DISCONNECT;
 845
 846 typedef struct smb_com_close_req {
 847         struct smb_hdr hdr;     /* wct = 3 */
 848         __u16 FileID;
 849         __u32 LastWriteTime;    /* should be zero or -1 */
 850         __u16 ByteCount;        /* 0 */
 851 } __attribute__((packed)) CLOSE_REQ;
 852
 853 typedef struct smb_com_close_rsp {
 854         struct smb_hdr hdr;     /* wct = 0 */
 855         __u16 ByteCount;        /* bct = 0 */
 856 } __attribute__((packed)) CLOSE_RSP;
 857
 858 typedef struct smb_com_flush_req {
 859         struct smb_hdr hdr;     /* wct = 1 */
 860         __u16 FileID;
 861         __u16 ByteCount;        /* 0 */
 862 } __attribute__((packed)) FLUSH_REQ;
 863
 864 typedef struct smb_com_findclose_req {
 865         struct smb_hdr hdr; /* wct = 1 */
 866         __u16 FileID;
 867         __u16 ByteCount;    /* 0 */
 868 } __attribute__((packed)) FINDCLOSE_REQ;
 869
 870 /* OpenFlags */
 871 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
 872 #define REQ_OPLOCK         0x00000002
 873 #define REQ_BATCHOPLOCK    0x00000004
 874 #define REQ_OPENDIRONLY    0x00000008
 875 #define REQ_EXTENDED_INFO  0x00000010
 876
 877 /* File type */
 878 #define DISK_TYPE               0x0000
 879 #define BYTE_PIPE_TYPE          0x0001
 880 #define MESSAGE_PIPE_TYPE       0x0002
 881 #define PRINTER_TYPE            0x0003
 882 #define COMM_DEV_TYPE           0x0004
 883 #define UNKNOWN_TYPE            0xFFFF
 884
 885 /* Device Type or File Status Flags */
 886 #define NO_EAS                  0x0001
 887 #define NO_SUBSTREAMS           0x0002
 888 #define NO_REPARSETAG           0x0004
 889 /* following flags can apply if pipe */
 890 #define ICOUNT_MASK             0x00FF
 891 #define PIPE_READ_MODE          0x0100
 892 #define NAMED_PIPE_TYPE         0x0400
 893 #define PIPE_END_POINT          0x4000
 894 #define BLOCKING_NAMED_PIPE     0x8000
 895
 896 typedef struct smb_com_open_req {       /* also handles create */
 897         struct smb_hdr hdr;     /* wct = 24 */
 898         __u8 AndXCommand;
 899         __u8 AndXReserved;
 900         __le16 AndXOffset;
 901         __u8 Reserved;          /* Must Be Zero */
 902         __le16 NameLength;
 903         __le32 OpenFlags;
 904         __u32  RootDirectoryFid;
 905         __le32 DesiredAccess;
 906         __le64 AllocationSize;
 907         __le32 FileAttributes;
 908         __le32 ShareAccess;
 909         __le32 CreateDisposition;
 910         __le32 CreateOptions;
 911         __le32 ImpersonationLevel;
 912         __u8 SecurityFlags;
 913         __le16 ByteCount;
 914         char fileName[1];
 915 } __attribute__((packed)) OPEN_REQ;
 916
 917 /* open response: oplock levels */
 918 #define OPLOCK_NONE      0
 919 #define OPLOCK_EXCLUSIVE 1
 920 #define OPLOCK_BATCH     2
 921 #define OPLOCK_READ      3  /* level 2 oplock */
 922
 923 /* open response for CreateAction shifted left */
 924 #define CIFS_CREATE_ACTION 0x20000 /* file created */
 925
 926 typedef struct smb_com_open_rsp {
 927         struct smb_hdr hdr;     /* wct = 34 BB */
 928         __u8 AndXCommand;
 929         __u8 AndXReserved;
 930         __le16 AndXOffset;
 931         __u8 OplockLevel;
 932         __u16 Fid;
 933         __le32 CreateAction;
 934         __le64 CreationTime;
 935         __le64 LastAccessTime;
 936         __le64 LastWriteTime;
 937         __le64 ChangeTime;
 938         __le32 FileAttributes;
 939         __le64 AllocationSize;
 940         __le64 EndOfFile;
 941         __le16 FileType;
 942         __le16 DeviceState;
 943         __u8 DirectoryFlag;
 944         __u16 ByteCount;        /* bct = 0 */
 945 } __attribute__((packed)) OPEN_RSP;
 946
 947 typedef struct smb_com_open_rsp_ext {
 948         struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
 949         __u8 AndXCommand;
 950         __u8 AndXReserved;
 951         __le16 AndXOffset;
 952         __u8 OplockLevel;
 953         __u16 Fid;
 954         __le32 CreateAction;
 955         __le64 CreationTime;
 956         __le64 LastAccessTime;
 957         __le64 LastWriteTime;
 958         __le64 ChangeTime;
 959         __le32 FileAttributes;
 960         __le64 AllocationSize;
 961         __le64 EndOfFile;
 962         __le16 FileType;
 963         __le16 DeviceState;
 964         __u8 DirectoryFlag;
 965         __u8 VolumeGUID[16];
 966         __u64 FileId; /* note no endian conversion - is opaque UniqueID */
 967         __le32 MaximalAccessRights;
 968         __le32 GuestMaximalAccessRights;
 969         __u16 ByteCount;        /* bct = 0 */
 970 } __attribute__((packed)) OPEN_RSP_EXT;
 971
 972
 973 /* format of legacy open request */
 974 typedef struct smb_com_openx_req {
 975         struct smb_hdr  hdr;    /* wct = 15 */
 976         __u8 AndXCommand;
 977         __u8 AndXReserved;
 978         __le16 AndXOffset;
 979         __le16 OpenFlags;
 980         __le16 Mode;
 981         __le16 Sattr; /* search attributes */
 982         __le16 FileAttributes;  /* dos attrs */
 983         __le32 CreateTime; /* os2 format */
 984         __le16 OpenFunction;
 985         __le32 EndOfFile;
 986         __le32 Timeout;
 987         __le32 Reserved;
 988         __le16  ByteCount;  /* file name follows */
 989         char   fileName[1];
 990 } __attribute__((packed)) OPENX_REQ;
 991
 992 typedef struct smb_com_openx_rsp {
 993         struct smb_hdr  hdr;    /* wct = 15 */
 994         __u8 AndXCommand;
 995         __u8 AndXReserved;
 996         __le16 AndXOffset;
 997         __u16  Fid;
 998         __le16 FileAttributes;
 999         __le32 LastWriteTime; /* os2 format */
1000         __le32 EndOfFile;
1001         __le16 Access;
1002         __le16 FileType;
1003         __le16 IPCState;
1004         __le16 Action;
1005         __u32  FileId;
1006         __u16  Reserved;
1007         __u16  ByteCount;
1008 } __attribute__((packed)) OPENX_RSP;
1009
1010 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
1011
1012 /* Legacy write request for older servers */
1013 typedef struct smb_com_writex_req {
1014         struct smb_hdr hdr;     /* wct = 12 */
1015         __u8 AndXCommand;
1016         __u8 AndXReserved;
1017         __le16 AndXOffset;
1018         __u16 Fid;
1019         __le32 OffsetLow;
1020         __u32 Reserved; /* Timeout */
1021         __le16 WriteMode; /* 1 = write through */
1022         __le16 Remaining;
1023         __le16 Reserved2;
1024         __le16 DataLengthLow;
1025         __le16 DataOffset;
1026         __le16 ByteCount;
1027         __u8 Pad;               /* BB check for whether padded to DWORD
1028                                    boundary and optimum performance here */
1029         char Data[0];
1030 } __attribute__((packed)) WRITEX_REQ;
1031
1032 typedef struct smb_com_write_req {
1033         struct smb_hdr hdr;     /* wct = 14 */
1034         __u8 AndXCommand;
1035         __u8 AndXReserved;
1036         __le16 AndXOffset;
1037         __u16 Fid;
1038         __le32 OffsetLow;
1039         __u32 Reserved;
1040         __le16 WriteMode;
1041         __le16 Remaining;
1042         __le16 DataLengthHigh;
1043         __le16 DataLengthLow;
1044         __le16 DataOffset;
1045         __le32 OffsetHigh;
1046         __le16 ByteCount;
1047         __u8 Pad;               /* BB check for whether padded to DWORD
1048                                    boundary and optimum performance here */
1049         char Data[0];
1050 } __attribute__((packed)) WRITE_REQ;
1051
1052 typedef struct smb_com_write_rsp {
1053         struct smb_hdr hdr;     /* wct = 6 */
1054         __u8 AndXCommand;
1055         __u8 AndXReserved;
1056         __le16 AndXOffset;
1057         __le16 Count;
1058         __le16 Remaining;
1059         __le16 CountHigh;
1060         __u16  Reserved;
1061         __u16 ByteCount;
1062 } __attribute__((packed)) WRITE_RSP;
1063
1064 /* legacy read request for older servers */
1065 typedef struct smb_com_readx_req {
1066         struct smb_hdr hdr;     /* wct = 10 */
1067         __u8 AndXCommand;
1068         __u8 AndXReserved;
1069         __le16 AndXOffset;
1070         __u16 Fid;
1071         __le32 OffsetLow;
1072         __le16 MaxCount;
1073         __le16 MinCount;        /* obsolete */
1074         __le32 Reserved;
1075         __le16 Remaining;
1076         __le16 ByteCount;
1077 } __attribute__((packed)) READX_REQ;
1078
1079 typedef struct smb_com_read_req {
1080         struct smb_hdr hdr;     /* wct = 12 */
1081         __u8 AndXCommand;
1082         __u8 AndXReserved;
1083         __le16 AndXOffset;
1084         __u16 Fid;
1085         __le32 OffsetLow;
1086         __le16 MaxCount;
1087         __le16 MinCount;                /* obsolete */
1088         __le32 MaxCountHigh;
1089         __le16 Remaining;
1090         __le32 OffsetHigh;
1091         __le16 ByteCount;
1092 } __attribute__((packed)) READ_REQ;
1093
1094 typedef struct smb_com_read_rsp {
1095         struct smb_hdr hdr;     /* wct = 12 */
1096         __u8 AndXCommand;
1097         __u8 AndXReserved;
1098         __le16 AndXOffset;
1099         __le16 Remaining;
1100         __le16 DataCompactionMode;
1101         __le16 Reserved;
1102         __le16 DataLength;
1103         __le16 DataOffset;
1104         __le16 DataLengthHigh;
1105         __u64 Reserved2;
1106         __u16 ByteCount;
1107         __u8 Pad;               /* BB check for whether padded to DWORD
1108                                    boundary and optimum performance here */
1109         char Data[1];
1110 } __attribute__((packed)) READ_RSP;
1111
1112 typedef struct locking_andx_range {
1113         __le16 Pid;
1114         __le16 Pad;
1115         __le32 OffsetHigh;
1116         __le32 OffsetLow;
1117         __le32 LengthHigh;
1118         __le32 LengthLow;
1119 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1120
1121 #define LOCKING_ANDX_SHARED_LOCK     0x01
1122 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1123 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1124 #define LOCKING_ANDX_CANCEL_LOCK     0x08
1125 #define LOCKING_ANDX_LARGE_FILES     0x10       /* always on for us */
1126
1127 typedef struct smb_com_lock_req {
1128         struct smb_hdr hdr;     /* wct = 8 */
1129         __u8 AndXCommand;
1130         __u8 AndXReserved;
1131         __le16 AndXOffset;
1132         __u16 Fid;
1133         __u8 LockType;
1134         __u8 OplockLevel;
1135         __le32 Timeout;
1136         __le16 NumberOfUnlocks;
1137         __le16 NumberOfLocks;
1138         __le16 ByteCount;
1139         LOCKING_ANDX_RANGE Locks[1];
1140 } __attribute__((packed)) LOCK_REQ;
1141
1142 /* lock type */
1143 #define CIFS_RDLCK      0
1144 #define CIFS_WRLCK      1
1145 #define CIFS_UNLCK      2
1146 typedef struct cifs_posix_lock {
1147         __le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1148         __le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1149         __le32  pid;
1150         __le64  start;
1151         __le64  length;
1152         /* BB what about additional owner info to identify network client */
1153 } __attribute__((packed)) CIFS_POSIX_LOCK;
1154
1155 typedef struct smb_com_lock_rsp {
1156         struct smb_hdr hdr;     /* wct = 2 */
1157         __u8 AndXCommand;
1158         __u8 AndXReserved;
1159         __le16 AndXOffset;
1160         __u16 ByteCount;
1161 } __attribute__((packed)) LOCK_RSP;
1162
1163 typedef struct smb_com_rename_req {
1164         struct smb_hdr hdr;     /* wct = 1 */
1165         __le16 SearchAttributes;        /* target file attributes */
1166         __le16 ByteCount;
1167         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1168         unsigned char OldFileName[1];
1169         /* followed by __u8 BufferFormat2 */
1170         /* followed by NewFileName */
1171 } __attribute__((packed)) RENAME_REQ;
1172
1173         /* copy request flags */
1174 #define COPY_MUST_BE_FILE      0x0001
1175 #define COPY_MUST_BE_DIR       0x0002
1176 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1177 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1178 #define COPY_VERIFY_WRITES     0x0010
1179 #define COPY_TREE              0x0020
1180
1181 typedef struct smb_com_copy_req {
1182         struct smb_hdr hdr;     /* wct = 3 */
1183         __u16 Tid2;
1184         __le16 OpenFunction;
1185         __le16 Flags;
1186         __le16 ByteCount;
1187         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1188         unsigned char OldFileName[1];
1189         /* followed by __u8 BufferFormat2 */
1190         /* followed by NewFileName string */
1191 } __attribute__((packed)) COPY_REQ;
1192
1193 typedef struct smb_com_copy_rsp {
1194         struct smb_hdr hdr;     /* wct = 1 */
1195         __le16 CopyCount;    /* number of files copied */
1196         __u16 ByteCount;    /* may be zero */
1197         __u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1198         unsigned char ErrorFileName[1]; /* only present if error in copy */
1199 } __attribute__((packed)) COPY_RSP;
1200
1201 #define CREATE_HARD_LINK                0x103
1202 #define MOVEFILE_COPY_ALLOWED           0x0002
1203 #define MOVEFILE_REPLACE_EXISTING       0x0001
1204
1205 typedef struct smb_com_nt_rename_req {  /* A5 - also used for create hardlink */
1206         struct smb_hdr hdr;     /* wct = 4 */
1207         __le16 SearchAttributes;        /* target file attributes */
1208         __le16 Flags;           /* spec says Information Level */
1209         __le32 ClusterCount;
1210         __le16 ByteCount;
1211         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1212         unsigned char OldFileName[1];
1213         /* followed by __u8 BufferFormat2 */
1214         /* followed by NewFileName */
1215 } __attribute__((packed)) NT_RENAME_REQ;
1216
1217 typedef struct smb_com_rename_rsp {
1218         struct smb_hdr hdr;     /* wct = 0 */
1219         __u16 ByteCount;        /* bct = 0 */
1220 } __attribute__((packed)) RENAME_RSP;
1221
1222 typedef struct smb_com_delete_file_req {
1223         struct smb_hdr hdr;     /* wct = 1 */
1224         __le16 SearchAttributes;
1225         __le16 ByteCount;
1226         __u8 BufferFormat;      /* 4 = ASCII */
1227         unsigned char fileName[1];
1228 } __attribute__((packed)) DELETE_FILE_REQ;
1229
1230 typedef struct smb_com_delete_file_rsp {
1231         struct smb_hdr hdr;     /* wct = 0 */
1232         __u16 ByteCount;        /* bct = 0 */
1233 } __attribute__((packed)) DELETE_FILE_RSP;
1234
1235 typedef struct smb_com_delete_directory_req {
1236         struct smb_hdr hdr;     /* wct = 0 */
1237         __le16 ByteCount;
1238         __u8 BufferFormat;      /* 4 = ASCII */
1239         unsigned char DirName[1];
1240 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1241
1242 typedef struct smb_com_delete_directory_rsp {
1243         struct smb_hdr hdr;     /* wct = 0 */
1244         __u16 ByteCount;        /* bct = 0 */
1245 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1246
1247 typedef struct smb_com_create_directory_req {
1248         struct smb_hdr hdr;     /* wct = 0 */
1249         __le16 ByteCount;
1250         __u8 BufferFormat;      /* 4 = ASCII */
1251         unsigned char DirName[1];
1252 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1253
1254 typedef struct smb_com_create_directory_rsp {
1255         struct smb_hdr hdr;     /* wct = 0 */
1256         __u16 ByteCount;        /* bct = 0 */
1257 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1258
1259 typedef struct smb_com_query_information_req {
1260         struct smb_hdr hdr;     /* wct = 0 */
1261         __le16 ByteCount;       /* 1 + namelen + 1 */
1262         __u8 BufferFormat;      /* 4 = ASCII */
1263         unsigned char FileName[1];
1264 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1265
1266 typedef struct smb_com_query_information_rsp {
1267         struct smb_hdr hdr;     /* wct = 10 */
1268         __le16 attr;
1269         __le32  last_write_time;
1270         __le32 size;
1271         __u16  reserved[5];
1272         __le16 ByteCount;       /* bcc = 0 */
1273 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1274
1275 typedef struct smb_com_setattr_req {
1276         struct smb_hdr hdr; /* wct = 8 */
1277         __le16 attr;
1278         __le16 time_low;
1279         __le16 time_high;
1280         __le16 reserved[5]; /* must be zero */
1281         __u16  ByteCount;
1282         __u8   BufferFormat; /* 4 = ASCII */
1283         unsigned char fileName[1];
1284 } __attribute__((packed)) SETATTR_REQ;
1285
1286 typedef struct smb_com_setattr_rsp {
1287         struct smb_hdr hdr;     /* wct = 0 */
1288         __u16 ByteCount;        /* bct = 0 */
1289 } __attribute__((packed)) SETATTR_RSP;
1290
1291 /* empty wct response to setattr */
1292
1293 /*******************************************************/
1294 /* NT Transact structure definitions follow            */
1295 /* Currently only ioctl, acl (get security descriptor) */
1296 /* and notify are implemented                          */
1297 /*******************************************************/
1298 typedef struct smb_com_ntransact_req {
1299         struct smb_hdr hdr; /* wct >= 19 */
1300         __u8 MaxSetupCount;
1301         __u16 Reserved;
1302         __le32 TotalParameterCount;
1303         __le32 TotalDataCount;
1304         __le32 MaxParameterCount;
1305         __le32 MaxDataCount;
1306         __le32 ParameterCount;
1307         __le32 ParameterOffset;
1308         __le32 DataCount;
1309         __le32 DataOffset;
1310         __u8 SetupCount; /* four setup words follow subcommand */
1311         /* SNIA spec incorrectly included spurious pad here */
1312         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1313         /* SetupCount words follow then */
1314         __le16 ByteCount;
1315         __u8 Pad[3];
1316         __u8 Parms[0];
1317 } __attribute__((packed)) NTRANSACT_REQ;
1318
1319 typedef struct smb_com_ntransact_rsp {
1320         struct smb_hdr hdr;     /* wct = 18 */
1321         __u8 Reserved[3];
1322         __le32 TotalParameterCount;
1323         __le32 TotalDataCount;
1324         __le32 ParameterCount;
1325         __le32 ParameterOffset;
1326         __le32 ParameterDisplacement;
1327         __le32 DataCount;
1328         __le32 DataOffset;
1329         __le32 DataDisplacement;
1330         __u8 SetupCount;   /* 0 */
1331         __u16 ByteCount;
1332         /* __u8 Pad[3]; */
1333         /* parms and data follow */
1334 } __attribute__((packed)) NTRANSACT_RSP;
1335
1336 typedef struct smb_com_transaction_ioctl_req {
1337         struct smb_hdr hdr;     /* wct = 23 */
1338         __u8 MaxSetupCount;
1339         __u16 Reserved;
1340         __le32 TotalParameterCount;
1341         __le32 TotalDataCount;
1342         __le32 MaxParameterCount;
1343         __le32 MaxDataCount;
1344         __le32 ParameterCount;
1345         __le32 ParameterOffset;
1346         __le32 DataCount;
1347         __le32 DataOffset;
1348         __u8 SetupCount; /* four setup words follow subcommand */
1349         /* SNIA spec incorrectly included spurious pad here */
1350         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1351         __le32 FunctionCode;
1352         __u16 Fid;
1353         __u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1354         __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1355         __le16 ByteCount;
1356         __u8 Pad[3];
1357         __u8 Data[1];
1358 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1359
1360 typedef struct smb_com_transaction_ioctl_rsp {
1361         struct smb_hdr hdr;     /* wct = 19 */
1362         __u8 Reserved[3];
1363         __le32 TotalParameterCount;
1364         __le32 TotalDataCount;
1365         __le32 ParameterCount;
1366         __le32 ParameterOffset;
1367         __le32 ParameterDisplacement;
1368         __le32 DataCount;
1369         __le32 DataOffset;
1370         __le32 DataDisplacement;
1371         __u8 SetupCount;        /* 1 */
1372         __le16 ReturnedDataLen;
1373         __u16 ByteCount;
1374 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1375
1376 #define CIFS_ACL_OWNER 1
1377 #define CIFS_ACL_GROUP 2
1378 #define CIFS_ACL_DACL  4
1379 #define CIFS_ACL_SACL  8
1380
1381 typedef struct smb_com_transaction_qsec_req {
1382         struct smb_hdr hdr;     /* wct = 19 */
1383         __u8 MaxSetupCount;
1384         __u16 Reserved;
1385         __le32 TotalParameterCount;
1386         __le32 TotalDataCount;
1387         __le32 MaxParameterCount;
1388         __le32 MaxDataCount;
1389         __le32 ParameterCount;
1390         __le32 ParameterOffset;
1391         __le32 DataCount;
1392         __le32 DataOffset;
1393         __u8 SetupCount; /* no setup words follow subcommand */
1394         /* SNIA spec incorrectly included spurious pad here */
1395         __le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1396         __le16 ByteCount; /* bcc = 3 + 8 */
1397         __u8 Pad[3];
1398         __u16 Fid;
1399         __u16 Reserved2;
1400         __le32 AclFlags;
1401 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1402
1403
1404 typedef struct smb_com_transaction_ssec_req {
1405         struct smb_hdr hdr;     /* wct = 19 */
1406         __u8 MaxSetupCount;
1407         __u16 Reserved;
1408         __le32 TotalParameterCount;
1409         __le32 TotalDataCount;
1410         __le32 MaxParameterCount;
1411         __le32 MaxDataCount;
1412         __le32 ParameterCount;
1413         __le32 ParameterOffset;
1414         __le32 DataCount;
1415         __le32 DataOffset;
1416         __u8 SetupCount; /* no setup words follow subcommand */
1417         /* SNIA spec incorrectly included spurious pad here */
1418         __le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1419         __le16 ByteCount; /* bcc = 3 + 8 */
1420         __u8 Pad[3];
1421         __u16 Fid;
1422         __u16 Reserved2;
1423         __le32 AclFlags;
1424 } __attribute__((packed)) SET_SEC_DESC_REQ;
1425
1426 typedef struct smb_com_transaction_change_notify_req {
1427         struct smb_hdr hdr;     /* wct = 23 */
1428         __u8 MaxSetupCount;
1429         __u16 Reserved;
1430         __le32 TotalParameterCount;
1431         __le32 TotalDataCount;
1432         __le32 MaxParameterCount;
1433         __le32 MaxDataCount;
1434         __le32 ParameterCount;
1435         __le32 ParameterOffset;
1436         __le32 DataCount;
1437         __le32 DataOffset;
1438         __u8 SetupCount; /* four setup words follow subcommand */
1439         /* SNIA spec incorrectly included spurious pad here */
1440         __le16 SubCommand;/* 4 = Change Notify */
1441         __le32 CompletionFilter;  /* operation to monitor */
1442         __u16 Fid;
1443         __u8 WatchTree;  /* 1 = Monitor subdirectories */
1444         __u8 Reserved2;
1445         __le16 ByteCount;
1446 /*      __u8 Pad[3];*/
1447 /*      __u8 Data[1];*/
1448 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1449
1450 /* BB eventually change to use generic ntransact rsp struct
1451       and validation routine */
1452 typedef struct smb_com_transaction_change_notify_rsp {
1453         struct smb_hdr hdr;     /* wct = 18 */
1454         __u8 Reserved[3];
1455         __le32 TotalParameterCount;
1456         __le32 TotalDataCount;
1457         __le32 ParameterCount;
1458         __le32 ParameterOffset;
1459         __le32 ParameterDisplacement;
1460         __le32 DataCount;
1461         __le32 DataOffset;
1462         __le32 DataDisplacement;
1463         __u8 SetupCount;   /* 0 */
1464         __u16 ByteCount;
1465         /* __u8 Pad[3]; */
1466 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1467 /* Completion Filter flags for Notify */
1468 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1469 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1470 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1471 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1472 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1473 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1474 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1475 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1476 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1477 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1478 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1479 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1480 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1481
1482 #define FILE_ACTION_ADDED               0x00000001
1483 #define FILE_ACTION_REMOVED             0x00000002
1484 #define FILE_ACTION_MODIFIED            0x00000003
1485 #define FILE_ACTION_RENAMED_OLD_NAME    0x00000004
1486 #define FILE_ACTION_RENAMED_NEW_NAME    0x00000005
1487 #define FILE_ACTION_ADDED_STREAM        0x00000006
1488 #define FILE_ACTION_REMOVED_STREAM      0x00000007
1489 #define FILE_ACTION_MODIFIED_STREAM     0x00000008
1490
1491 /* response contains array of the following structures */
1492 struct file_notify_information {
1493         __le32 NextEntryOffset;
1494         __le32 Action;
1495         __le32 FileNameLength;
1496         __u8  FileName[0];
1497 } __attribute__((packed));
1498
1499 struct reparse_data {
1500         __u32   ReparseTag;
1501         __u16   ReparseDataLength;
1502         __u16   Reserved;
1503         __u16   AltNameOffset;
1504         __u16   AltNameLen;
1505         __u16   TargetNameOffset;
1506         __u16   TargetNameLen;
1507         char    LinkNamesBuf[1];
1508 } __attribute__((packed));
1509
1510 struct cifs_quota_data {
1511         __u32   rsrvd1;  /* 0 */
1512         __u32   sid_size;
1513         __u64   rsrvd2;  /* 0 */
1514         __u64   space_used;
1515         __u64   soft_limit;
1516         __u64   hard_limit;
1517         char    sid[1];  /* variable size? */
1518 } __attribute__((packed));
1519
1520 /* quota sub commands */
1521 #define QUOTA_LIST_CONTINUE         0
1522 #define QUOTA_LIST_START        0x100
1523 #define QUOTA_FOR_SID           0x101
1524
1525 struct trans2_req {
1526         /* struct smb_hdr hdr precedes. Set wct = 14+ */
1527         __le16 TotalParameterCount;
1528         __le16 TotalDataCount;
1529         __le16 MaxParameterCount;
1530         __le16 MaxDataCount;
1531         __u8 MaxSetupCount;
1532         __u8 Reserved;
1533         __le16 Flags;
1534         __le32 Timeout;
1535         __u16 Reserved2;
1536         __le16 ParameterCount;
1537         __le16 ParameterOffset;
1538         __le16 DataCount;
1539         __le16 DataOffset;
1540         __u8 SetupCount;
1541         __u8 Reserved3;
1542         __le16 SubCommand; /* 1st setup word - SetupCount words follow */
1543         __le16 ByteCount;
1544 } __attribute__((packed));
1545
1546 struct smb_t2_req {
1547         struct smb_hdr hdr;
1548         struct trans2_req t2_req;
1549 } __attribute__((packed));
1550
1551 struct trans2_resp {
1552         /* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1553         __le16 TotalParameterCount;
1554         __le16 TotalDataCount;
1555         __u16 Reserved;
1556         __le16 ParameterCount;
1557         __le16 ParameterOffset;
1558         __le16 ParameterDisplacement;
1559         __le16 DataCount;
1560         __le16 DataOffset;
1561         __le16 DataDisplacement;
1562         __u8 SetupCount;
1563         __u8 Reserved1;
1564         /* SetupWords[SetupCount];
1565         __u16 ByteCount;
1566         __u16 Reserved2;*/
1567         /* data area follows */
1568 } __attribute__((packed));
1569
1570 struct smb_t2_rsp {
1571         struct smb_hdr hdr;
1572         struct trans2_resp t2_rsp;
1573 } __attribute__((packed));
1574
1575 /* PathInfo/FileInfo infolevels */
1576 #define SMB_INFO_STANDARD                   1
1577 #define SMB_SET_FILE_EA                     2
1578 #define SMB_QUERY_FILE_EA_SIZE              2
1579 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1580 #define SMB_INFO_QUERY_ALL_EAS              4
1581 #define SMB_INFO_IS_NAME_VALID              6
1582 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1583 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1584 #define SMB_QUERY_FILE_EA_INFO          0x103
1585 #define SMB_QUERY_FILE_NAME_INFO        0x104
1586 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1587 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1588 #define SMB_QUERY_FILE_ALL_INFO         0x107
1589 #define SMB_QUERY_ALT_NAME_INFO         0x108
1590 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1591 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1592 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1593 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1594 #define SMB_QUERY_POSIX_ACL             0x204
1595 #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1596 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1597 #define SMB_QUERY_POSIX_PERMISSION      0x207
1598 #define SMB_QUERY_POSIX_LOCK            0x208
1599 /* #define SMB_POSIX_OPEN               0x209 */
1600 /* #define SMB_POSIX_UNLINK             0x20a */
1601 #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1602 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1603 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1604 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1605 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1606 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1607 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1608
1609
1610 #define SMB_SET_FILE_BASIC_INFO         0x101
1611 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1612 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1613 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1614 #define SMB_SET_FILE_UNIX_BASIC         0x200
1615 #define SMB_SET_FILE_UNIX_LINK          0x201
1616 #define SMB_SET_FILE_UNIX_HLINK         0x203
1617 #define SMB_SET_POSIX_ACL               0x204
1618 #define SMB_SET_XATTR                   0x205
1619 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1620 #define SMB_SET_POSIX_LOCK              0x208
1621 #define SMB_POSIX_OPEN                  0x209
1622 #define SMB_POSIX_UNLINK                0x20a
1623 #define SMB_SET_FILE_UNIX_INFO2         0x20b
1624 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1625 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1626 #define SMB_FILE_ALL_INFO2              0x3fa
1627 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1628 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1629 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1630 #define SMB_FILE_QUOTA_INFO             0x408
1631 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1632 #define SMB_FILE_MAXIMUM_INFO           0x40d
1633
1634 /* Find File infolevels */
1635 #define SMB_FIND_FILE_INFO_STANDARD       0x001
1636 #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1637 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1638 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1639 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1640 #define SMB_FIND_FILE_NAMES_INFO          0x103
1641 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1642 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1643 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1644 #define SMB_FIND_FILE_UNIX                0x202
1645
1646 typedef struct smb_com_transaction2_qpi_req {
1647         struct smb_hdr hdr;     /* wct = 14+ */
1648         __le16 TotalParameterCount;
1649         __le16 TotalDataCount;
1650         __le16 MaxParameterCount;
1651         __le16 MaxDataCount;
1652         __u8 MaxSetupCount;
1653         __u8 Reserved;
1654         __le16 Flags;
1655         __le32 Timeout;
1656         __u16 Reserved2;
1657         __le16 ParameterCount;
1658         __le16 ParameterOffset;
1659         __le16 DataCount;
1660         __le16 DataOffset;
1661         __u8 SetupCount;
1662         __u8 Reserved3;
1663         __le16 SubCommand;      /* one setup word */
1664         __le16 ByteCount;
1665         __u8 Pad;
1666         __le16 InformationLevel;
1667         __u32 Reserved4;
1668         char FileName[1];
1669 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1670
1671 typedef struct smb_com_transaction2_qpi_rsp {
1672         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1673         struct trans2_resp t2;
1674         __u16 ByteCount;
1675         __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1676 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1677
1678 typedef struct smb_com_transaction2_spi_req {
1679         struct smb_hdr hdr;     /* wct = 15 */
1680         __le16 TotalParameterCount;
1681         __le16 TotalDataCount;
1682         __le16 MaxParameterCount;
1683         __le16 MaxDataCount;
1684         __u8 MaxSetupCount;
1685         __u8 Reserved;
1686         __le16 Flags;
1687         __le32 Timeout;
1688         __u16 Reserved2;
1689         __le16 ParameterCount;
1690         __le16 ParameterOffset;
1691         __le16 DataCount;
1692         __le16 DataOffset;
1693         __u8 SetupCount;
1694         __u8 Reserved3;
1695         __le16 SubCommand;      /* one setup word */
1696         __le16 ByteCount;
1697         __u8 Pad;
1698         __u16 Pad1;
1699         __le16 InformationLevel;
1700         __u32 Reserved4;
1701         char FileName[1];
1702 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1703
1704 typedef struct smb_com_transaction2_spi_rsp {
1705         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1706         struct trans2_resp t2;
1707         __u16 ByteCount;
1708         __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1709 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1710
1711 struct set_file_rename {
1712         __le32 overwrite;   /* 1 = overwrite dest */
1713         __u32 root_fid;   /* zero */
1714         __le32 target_name_len;
1715         char  target_name[0];  /* Must be unicode */
1716 } __attribute__((packed));
1717
1718 struct smb_com_transaction2_sfi_req {
1719         struct smb_hdr hdr;     /* wct = 15 */
1720         __le16 TotalParameterCount;
1721         __le16 TotalDataCount;
1722         __le16 MaxParameterCount;
1723         __le16 MaxDataCount;
1724         __u8 MaxSetupCount;
1725         __u8 Reserved;
1726         __le16 Flags;
1727         __le32 Timeout;
1728         __u16 Reserved2;
1729         __le16 ParameterCount;
1730         __le16 ParameterOffset;
1731         __le16 DataCount;
1732         __le16 DataOffset;
1733         __u8 SetupCount;
1734         __u8 Reserved3;
1735         __le16 SubCommand;      /* one setup word */
1736         __le16 ByteCount;
1737         __u8 Pad;
1738         __u16 Pad1;
1739         __u16 Fid;
1740         __le16 InformationLevel;
1741         __u16 Reserved4;
1742 } __attribute__((packed));
1743
1744 struct smb_com_transaction2_sfi_rsp {
1745         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1746         struct trans2_resp t2;
1747         __u16 ByteCount;
1748         __u16 Reserved2;        /* parameter word reserved -
1749                                         present for infolevels > 100 */
1750 } __attribute__((packed));
1751
1752 struct smb_t2_qfi_req {
1753         struct  smb_hdr hdr;
1754         struct  trans2_req t2;
1755         __u8    Pad;
1756         __u16   Fid;
1757         __le16  InformationLevel;
1758 } __attribute__((packed));
1759
1760 struct smb_t2_qfi_rsp {
1761         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1762         struct trans2_resp t2;
1763         __u16 ByteCount;
1764         __u16 Reserved2;        /* parameter word reserved -
1765                                    present for infolevels > 100 */
1766 } __attribute__((packed));
1767
1768 /*
1769  * Flags on T2 FINDFIRST and FINDNEXT
1770  */
1771 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1772 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1773 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1774 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1775 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1776
1777 /*
1778  * Size of the resume key on FINDFIRST and FINDNEXT calls
1779  */
1780 #define CIFS_SMB_RESUME_KEY_SIZE 4
1781
1782 typedef struct smb_com_transaction2_ffirst_req {
1783         struct smb_hdr hdr;     /* wct = 15 */
1784         __le16 TotalParameterCount;
1785         __le16 TotalDataCount;
1786         __le16 MaxParameterCount;
1787         __le16 MaxDataCount;
1788         __u8 MaxSetupCount;
1789         __u8 Reserved;
1790         __le16 Flags;
1791         __le32 Timeout;
1792         __u16 Reserved2;
1793         __le16 ParameterCount;
1794         __le16 ParameterOffset;
1795         __le16 DataCount;
1796         __le16 DataOffset;
1797         __u8 SetupCount;        /* one */
1798         __u8 Reserved3;
1799         __le16 SubCommand;      /* TRANS2_FIND_FIRST */
1800         __le16 ByteCount;
1801         __u8 Pad;
1802         __le16 SearchAttributes;
1803         __le16 SearchCount;
1804         __le16 SearchFlags;
1805         __le16 InformationLevel;
1806         __le32 SearchStorageType;
1807         char FileName[1];
1808 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1809
1810 typedef struct smb_com_transaction2_ffirst_rsp {
1811         struct smb_hdr hdr;     /* wct = 10 */
1812         struct trans2_resp t2;
1813         __u16 ByteCount;
1814 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1815
1816 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1817         __u16 SearchHandle;
1818         __le16 SearchCount;
1819         __le16 EndofSearch;
1820         __le16 EAErrorOffset;
1821         __le16 LastNameOffset;
1822 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1823
1824 typedef struct smb_com_transaction2_fnext_req {
1825         struct smb_hdr hdr;     /* wct = 15 */
1826         __le16 TotalParameterCount;
1827         __le16 TotalDataCount;
1828         __le16 MaxParameterCount;
1829         __le16 MaxDataCount;
1830         __u8 MaxSetupCount;
1831         __u8 Reserved;
1832         __le16 Flags;
1833         __le32 Timeout;
1834         __u16 Reserved2;
1835         __le16 ParameterCount;
1836         __le16 ParameterOffset;
1837         __le16 DataCount;
1838         __le16 DataOffset;
1839         __u8 SetupCount;        /* one */
1840         __u8 Reserved3;
1841         __le16 SubCommand;      /* TRANS2_FIND_NEXT */
1842         __le16 ByteCount;
1843         __u8 Pad;
1844         __u16 SearchHandle;
1845         __le16 SearchCount;
1846         __le16 InformationLevel;
1847         __u32 ResumeKey;
1848         __le16 SearchFlags;
1849         char ResumeFileName[1];
1850 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1851
1852 typedef struct smb_com_transaction2_fnext_rsp {
1853         struct smb_hdr hdr;     /* wct = 10 */
1854         struct trans2_resp t2;
1855         __u16 ByteCount;
1856 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1857
1858 typedef struct smb_com_transaction2_fnext_rsp_parms {
1859         __le16 SearchCount;
1860         __le16 EndofSearch;
1861         __le16 EAErrorOffset;
1862         __le16 LastNameOffset;
1863 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1864
1865 /* QFSInfo Levels */
1866 #define SMB_INFO_ALLOCATION         1
1867 #define SMB_INFO_VOLUME             2
1868 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1869 #define SMB_QUERY_FS_SIZE_INFO      0x103
1870 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1871 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1872 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1873 #define SMB_QUERY_POSIX_FS_INFO     0x201
1874 #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1875 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1876 #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1877                                             FILE_SYSTEM__UNIX_INFO to tell
1878                                             whether new NTIOCTL available
1879                                             (0xACE) for WAN friendly SMB
1880                                             operations to be carried */
1881 #define SMB_QUERY_LABEL_INFO        0x3ea
1882 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1883 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1884 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1885
1886 typedef struct smb_com_transaction2_qfsi_req {
1887         struct smb_hdr hdr;     /* wct = 14+ */
1888         __le16 TotalParameterCount;
1889         __le16 TotalDataCount;
1890         __le16 MaxParameterCount;
1891         __le16 MaxDataCount;
1892         __u8 MaxSetupCount;
1893         __u8 Reserved;
1894         __le16 Flags;
1895         __le32 Timeout;
1896         __u16 Reserved2;
1897         __le16 ParameterCount;
1898         __le16 ParameterOffset;
1899         __le16 DataCount;
1900         __le16 DataOffset;
1901         __u8 SetupCount;
1902         __u8 Reserved3;
1903         __le16 SubCommand;      /* one setup word */
1904         __le16 ByteCount;
1905         __u8 Pad;
1906         __le16 InformationLevel;
1907 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1908
1909 typedef struct smb_com_transaction_qfsi_rsp {
1910         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1911         struct trans2_resp t2;
1912         __u16 ByteCount;
1913         __u8 Pad;       /* may be three bytes? *//* followed by data area */
1914 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1915
1916 typedef struct whoami_rsp_data { /* Query level 0x202 */
1917         __u32 flags; /* 0 = Authenticated user 1 = GUEST */
1918         __u32 mask; /* which flags bits server understands ie 0x0001 */
1919         __u64 unix_user_id;
1920         __u64 unix_user_gid;
1921         __u32 number_of_supplementary_gids; /* may be zero */
1922         __u32 number_of_sids; /* may be zero */
1923         __u32 length_of_sid_array; /* in bytes - may be zero */
1924         __u32 pad; /* reserved - MBZ */
1925         /* __u64 gid_array[0]; */  /* may be empty */
1926         /* __u8 * psid_list */  /* may be empty */
1927 } __attribute__((packed)) WHOAMI_RSP_DATA;
1928
1929 /* SETFSInfo Levels */
1930 #define SMB_SET_CIFS_UNIX_INFO    0x200
1931 typedef struct smb_com_transaction2_setfsi_req {
1932         struct smb_hdr hdr;     /* wct = 15 */
1933         __le16 TotalParameterCount;
1934         __le16 TotalDataCount;
1935         __le16 MaxParameterCount;
1936         __le16 MaxDataCount;
1937         __u8 MaxSetupCount;
1938         __u8 Reserved;
1939         __le16 Flags;
1940         __le32 Timeout;
1941         __u16 Reserved2;
1942         __le16 ParameterCount;  /* 4 */
1943         __le16 ParameterOffset;
1944         __le16 DataCount;       /* 12 */
1945         __le16 DataOffset;
1946         __u8 SetupCount;        /* one */
1947         __u8 Reserved3;
1948         __le16 SubCommand;      /* TRANS2_SET_FS_INFORMATION */
1949         __le16 ByteCount;
1950         __u8 Pad;
1951         __u16 FileNum;          /* Parameters start. */
1952         __le16 InformationLevel;/* Parameters end. */
1953         __le16 ClientUnixMajor; /* Data start. */
1954         __le16 ClientUnixMinor;
1955         __le64 ClientUnixCap;   /* Data end */
1956 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
1957
1958 typedef struct smb_com_transaction2_setfsi_rsp {
1959         struct smb_hdr hdr;     /* wct = 10 */
1960         struct trans2_resp t2;
1961         __u16 ByteCount;
1962 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
1963
1964
1965 typedef struct smb_com_transaction2_get_dfs_refer_req {
1966         struct smb_hdr hdr;     /* wct = 15 */
1967         __le16 TotalParameterCount;
1968         __le16 TotalDataCount;
1969         __le16 MaxParameterCount;
1970         __le16 MaxDataCount;
1971         __u8 MaxSetupCount;
1972         __u8 Reserved;
1973         __le16 Flags;
1974         __le32 Timeout;
1975         __u16 Reserved2;
1976         __le16 ParameterCount;
1977         __le16 ParameterOffset;
1978         __le16 DataCount;
1979         __le16 DataOffset;
1980         __u8 SetupCount;
1981         __u8 Reserved3;
1982         __le16 SubCommand;      /* one setup word */
1983         __le16 ByteCount;
1984         __u8 Pad[3];            /* Win2K has sent 0x0F01 (max response length
1985                                    perhaps?) followed by one byte pad - doesn't
1986                                    seem to matter though */
1987         __le16 MaxReferralLevel;
1988         char RequestFileName[1];
1989 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
1990
1991 #define DFS_VERSION cpu_to_le16(0x0003)
1992
1993 /* DFS server target type */
1994 #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
1995 #define DFS_TYPE_ROOT 0x0001
1996
1997 /* Referral Entry Flags */
1998 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
1999 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2000
2001 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2002         __le16 VersionNumber;  /* must be 3 or 4 */
2003         __le16 Size;
2004         __le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2005         __le16 ReferralEntryFlags;
2006         __le32 TimeToLive;
2007         __le16 DfsPathOffset;
2008         __le16 DfsAlternatePathOffset;
2009         __le16 NetworkAddressOffset; /* offset of the link target */
2010         __u8   ServiceSiteGuid[16];  /* MBZ, ignored */
2011 } __attribute__((packed)) REFERRAL3;
2012
2013 typedef struct smb_com_transaction_get_dfs_refer_rsp {
2014         struct smb_hdr hdr;     /* wct = 10 */
2015         struct trans2_resp t2;
2016         __u16 ByteCount;
2017         __u8 Pad;
2018         __le16 PathConsumed;
2019         __le16 NumberOfReferrals;
2020         __le32 DFSFlags;
2021         REFERRAL3 referrals[1]; /* array of level 3 dfs_referral structures */
2022         /* followed by the strings pointed to by the referral structures */
2023 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_RSP;
2024
2025 /* DFS Flags */
2026 #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2027 #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2028 #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2029
2030 /*
2031  ************************************************************************
2032  * All structs for everything above the SMB PDUs themselves
2033  * (such as the T2 level specific data) go here
2034  ************************************************************************
2035  */
2036
2037 /*
2038  * Information on a server
2039  */
2040
2041 struct serverInfo {
2042         char name[16];
2043         unsigned char versionMajor;
2044         unsigned char versionMinor;
2045         unsigned long type;
2046         unsigned int commentOffset;
2047 } __attribute__((packed));
2048
2049 /*
2050  * The following structure is the format of the data returned on a NetShareEnum
2051  * with level "90" (x5A)
2052  */
2053
2054 struct shareInfo {
2055         char shareName[13];
2056         char pad;
2057         unsigned short type;
2058         unsigned int commentOffset;
2059 } __attribute__((packed));
2060
2061 struct aliasInfo {
2062         char aliasName[9];
2063         char pad;
2064         unsigned int commentOffset;
2065         unsigned char type[2];
2066 } __attribute__((packed));
2067
2068 struct aliasInfo92 {
2069         int aliasNameOffset;
2070         int serverNameOffset;
2071         int shareNameOffset;
2072 } __attribute__((packed));
2073
2074 typedef struct {
2075         __le64 TotalAllocationUnits;
2076         __le64 FreeAllocationUnits;
2077         __le32 SectorsPerAllocationUnit;
2078         __le32 BytesPerSector;
2079 } __attribute__((packed)) FILE_SYSTEM_INFO;     /* size info, level 0x103 */
2080
2081 typedef struct {
2082         __le32 fsid;
2083         __le32 SectorsPerAllocationUnit;
2084         __le32 TotalAllocationUnits;
2085         __le32 FreeAllocationUnits;
2086         __le16  BytesPerSector;
2087 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2088
2089 typedef struct {
2090         __le16 MajorVersionNumber;
2091         __le16 MinorVersionNumber;
2092         __le64 Capability;
2093 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2094
2095 /* Version numbers for CIFS UNIX major and minor. */
2096 #define CIFS_UNIX_MAJOR_VERSION 1
2097 #define CIFS_UNIX_MINOR_VERSION 0
2098
2099 /* Linux/Unix extensions capability flags */
2100 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2101 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2102 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2103 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2104 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2105 #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2106                                                       calls including posix open
2107                                                       and posix unlink */
2108 #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
2109                                                       to 0xFFFF00 */
2110 #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2111 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2112 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2113 #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
2114                                                       QFS PROXY call */
2115 #ifdef CONFIG_CIFS_POSIX
2116 /* Can not set pathnames cap yet until we send new posix create SMB since
2117    otherwise server can treat such handles opened with older ntcreatex
2118    (by a new client which knows how to send posix path ops)
2119    as non-posix handles (can affect write behavior with byte range locks.
2120    We can add back in POSIX_PATH_OPS cap when Posix Create/Mkdir finished */
2121 /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2122 #define CIFS_UNIX_CAP_MASK              0x000000db
2123 #else
2124 #define CIFS_UNIX_CAP_MASK              0x00000013
2125 #endif /* CONFIG_CIFS_POSIX */
2126
2127
2128 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2129
2130 typedef struct {
2131         /* For undefined recommended transfer size return -1 in that field */
2132         __le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2133         __le32 BlockSize;
2134     /* The next three fields are in terms of the block size.
2135         (above). If block size is unknown, 4096 would be a
2136         reasonable block size for a server to report.
2137         Note that returning the blocks/blocksavail removes need
2138         to make a second call (to QFSInfo level 0x103 to get this info.
2139         UserBlockAvail is typically less than or equal to BlocksAvail,
2140         if no distinction is made return the same value in each */
2141         __le64 TotalBlocks;
2142         __le64 BlocksAvail;       /* bfree */
2143         __le64 UserBlocksAvail;   /* bavail */
2144     /* For undefined Node fields or FSID return -1 */
2145         __le64 TotalFileNodes;
2146         __le64 FreeFileNodes;
2147         __le64 FileSysIdentifier;   /* fsid */
2148         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2149         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2150 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2151
2152 /* DeviceType Flags */
2153 #define FILE_DEVICE_CD_ROM              0x00000002
2154 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2155 #define FILE_DEVICE_DFS                 0x00000006
2156 #define FILE_DEVICE_DISK                0x00000007
2157 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2158 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2159 #define FILE_DEVICE_NAMED_PIPE          0x00000011
2160 #define FILE_DEVICE_NETWORK             0x00000012
2161 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2162 #define FILE_DEVICE_NULL                0x00000015
2163 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2164 #define FILE_DEVICE_PRINTER             0x00000018
2165 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2166 #define FILE_DEVICE_STREAMS             0x0000001e
2167 #define FILE_DEVICE_TAPE                0x0000001f
2168 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2169 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2170 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2171
2172 typedef struct {
2173         __le32 DeviceType;
2174         __le32 DeviceCharacteristics;
2175 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2176
2177 typedef struct {
2178         __le32 Attributes;
2179         __le32 MaxPathNameComponentLength;
2180         __le32 FileSystemNameLen;
2181         char FileSystemName[52]; /* do not have to save this - get subset? */
2182 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2183
2184 /******************************************************************************/
2185 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2186 /******************************************************************************/
2187 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2188         __le64 CreationTime;
2189         __le64 LastAccessTime;
2190         __le64 LastWriteTime;
2191         __le64 ChangeTime;
2192         __le32 Attributes;
2193         __u32 Pad1;
2194         __le64 AllocationSize;
2195         __le64 EndOfFile;       /* size ie offset to first free byte in file */
2196         __le32 NumberOfLinks;   /* hard links */
2197         __u8 DeletePending;
2198         __u8 Directory;
2199         __u16 Pad2;
2200         __u64 IndexNumber;
2201         __le32 EASize;
2202         __le32 AccessFlags;
2203         __u64 IndexNumber1;
2204         __le64 CurrentByteOffset;
2205         __le32 Mode;
2206         __le32 AlignmentRequirement;
2207         __le32 FileNameLength;
2208         char FileName[1];
2209 } __attribute__((packed)) FILE_ALL_INFO;        /* level 0x107 QPathInfo */
2210
2211 /* defines for enumerating possible values of the Unix type field below */
2212 #define UNIX_FILE      0
2213 #define UNIX_DIR       1
2214 #define UNIX_SYMLINK   2
2215 #define UNIX_CHARDEV   3
2216 #define UNIX_BLOCKDEV  4
2217 #define UNIX_FIFO      5
2218 #define UNIX_SOCKET    6
2219 typedef struct {
2220         __le64 EndOfFile;
2221         __le64 NumOfBytes;
2222         __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2223         __le64 LastAccessTime;
2224         __le64 LastModificationTime;
2225         __le64 Uid;
2226         __le64 Gid;
2227         __le32 Type;
2228         __le64 DevMajor;
2229         __le64 DevMinor;
2230         __le64 UniqueId;
2231         __le64 Permissions;
2232         __le64 Nlinks;
2233 } __attribute__((packed)) FILE_UNIX_BASIC_INFO; /* level 0x200 QPathInfo */
2234
2235 typedef struct {
2236         char LinkDest[1];
2237 } __attribute__((packed)) FILE_UNIX_LINK_INFO;  /* level 0x201 QPathInfo */
2238
2239 /* The following three structures are needed only for
2240         setting time to NT4 and some older servers via
2241         the primitive DOS time format */
2242 typedef struct {
2243         __u16 Day:5;
2244         __u16 Month:4;
2245         __u16 Year:7;
2246 } __attribute__((packed)) SMB_DATE;
2247
2248 typedef struct {
2249         __u16 TwoSeconds:5;
2250         __u16 Minutes:6;
2251         __u16 Hours:5;
2252 } __attribute__((packed)) SMB_TIME;
2253
2254 typedef struct {
2255         __le16 CreationDate; /* SMB Date see above */
2256         __le16 CreationTime; /* SMB Time */
2257         __le16 LastAccessDate;
2258         __le16 LastAccessTime;
2259         __le16 LastWriteDate;
2260         __le16 LastWriteTime;
2261         __le32 DataSize; /* File Size (EOF) */
2262         __le32 AllocationSize;
2263         __le16 Attributes; /* verify not u32 */
2264         __le32 EASize;
2265 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2266
2267 typedef struct {
2268         __le64 CreationTime;
2269         __le64 LastAccessTime;
2270         __le64 LastWriteTime;
2271         __le64 ChangeTime;
2272         __le32 Attributes;
2273         __u32 Pad;
2274 } __attribute__((packed)) FILE_BASIC_INFO;      /* size info, level 0x101 */
2275
2276 struct file_allocation_info {
2277         __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2278 } __attribute__((packed));      /* size used on disk, for level 0x103 for set,
2279                                    0x105 for query */
2280
2281 struct file_end_of_file_info {
2282         __le64 FileSize;                /* offset to end of file */
2283 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2284
2285 struct file_alt_name_info {
2286         __u8   alt_name[1];
2287 } __attribute__((packed));      /* level 0x0108 */
2288
2289 struct file_stream_info {
2290         __le32 number_of_streams;  /* BB check sizes and verify location */
2291         /* followed by info on streams themselves
2292                 u64 size;
2293                 u64 allocation_size
2294                 stream info */
2295 };      /* level 0x109 */
2296
2297 struct file_compression_info {
2298         __le64 compressed_size;
2299         __le16 format;
2300         __u8   unit_shift;
2301         __u8   ch_shift;
2302         __u8   cl_shift;
2303         __u8   pad[3];
2304 } __attribute__((packed));      /* level 0x10b */
2305
2306 /* POSIX ACL set/query path info structures */
2307 #define CIFS_ACL_VERSION 1
2308 struct cifs_posix_ace { /* access control entry (ACE) */
2309         __u8  cifs_e_tag;
2310         __u8  cifs_e_perm;
2311         __le64 cifs_uid; /* or gid */
2312 } __attribute__((packed));
2313
2314 struct cifs_posix_acl { /* access conrol list  (ACL) */
2315         __le16  version;
2316         __le16  access_entry_count;  /* access ACL - count of entries */
2317         __le16  default_entry_count; /* default ACL - count of entries */
2318         struct cifs_posix_ace ace_array[0];
2319         /* followed by
2320         struct cifs_posix_ace default_ace_arraay[] */
2321 } __attribute__((packed));  /* level 0x204 */
2322
2323 /* types of access control entries already defined in posix_acl.h */
2324 /* #define CIFS_POSIX_ACL_USER_OBJ       0x01
2325 #define CIFS_POSIX_ACL_USER      0x02
2326 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2327 #define CIFS_POSIX_ACL_GROUP     0x08
2328 #define CIFS_POSIX_ACL_MASK      0x10
2329 #define CIFS_POSIX_ACL_OTHER     0x20 */
2330
2331 /* types of perms */
2332 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2333 #define CIFS_POSIX_ACL_WRITE     0x02
2334 #define CIFS_POSIX_ACL_READ          0x04 */
2335
2336 /* end of POSIX ACL definitions */
2337
2338 /* POSIX Open Flags */
2339 #define SMB_O_RDONLY     0x1
2340 #define SMB_O_WRONLY    0x2
2341 #define SMB_O_RDWR      0x4
2342 #define SMB_O_CREAT     0x10
2343 #define SMB_O_EXCL      0x20
2344 #define SMB_O_TRUNC     0x40
2345 #define SMB_O_APPEND    0x80
2346 #define SMB_O_SYNC      0x100
2347 #define SMB_O_DIRECTORY 0x200
2348 #define SMB_O_NOFOLLOW  0x400
2349 #define SMB_O_DIRECT    0x800
2350
2351 typedef struct {
2352         __le32 OpenFlags; /* same as NT CreateX */
2353         __le32 PosixOpenFlags;
2354         __le64 Permissions;
2355         __le16 Level; /* reply level requested (see QPathInfo levels) */
2356 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2357
2358 typedef struct {
2359         __le16 OplockFlags;
2360         __u16 Fid;
2361         __le32 CreateAction;
2362         __le16 ReturnedLevel;
2363         __le16 Pad;
2364         /* struct following varies based on requested level */
2365 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2366
2367 #define SMB_POSIX_UNLINK_FILE_TARGET            0
2368 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET       1
2369
2370 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2371         __le16 type;
2372 } __attribute__((packed));
2373
2374 struct file_internal_info {
2375         __le64  UniqueId; /* inode number */
2376 } __attribute__((packed));      /* level 0x3ee */
2377
2378 struct file_mode_info {
2379         __le32  Mode;
2380 } __attribute__((packed));      /* level 0x3f8 */
2381
2382 struct file_attrib_tag {
2383         __le32 Attribute;
2384         __le32 ReparseTag;
2385 } __attribute__((packed));      /* level 0x40b */
2386
2387
2388 /********************************************************/
2389 /*  FindFirst/FindNext transact2 data buffer formats    */
2390 /********************************************************/
2391
2392 typedef struct {
2393         __le32 NextEntryOffset;
2394         __u32 ResumeKey; /* as with FileIndex - no need to convert */
2395         FILE_UNIX_BASIC_INFO basic;
2396         char FileName[1];
2397 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2398
2399 typedef struct {
2400         __le32 NextEntryOffset;
2401         __u32 FileIndex;
2402         __le64 CreationTime;
2403         __le64 LastAccessTime;
2404         __le64 LastWriteTime;
2405         __le64 ChangeTime;
2406         __le64 EndOfFile;
2407         __le64 AllocationSize;
2408         __le32 ExtFileAttributes;
2409         __le32 FileNameLength;
2410         char FileName[1];
2411 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp 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; /* length of the xattrs */
2425         char FileName[1];
2426 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2427
2428 typedef struct {
2429         __le32 NextEntryOffset;
2430         __u32 FileIndex;
2431         __le64 CreationTime;
2432         __le64 LastAccessTime;
2433         __le64 LastWriteTime;
2434         __le64 ChangeTime;
2435         __le64 EndOfFile;
2436         __le64 AllocationSize;
2437         __le32 ExtFileAttributes;
2438         __le32 FileNameLength;
2439         __le32 EaSize; /* EA size */
2440         __le32 Reserved;
2441         __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2442         char FileName[1];
2443 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2444
2445 typedef struct {
2446         __le32 NextEntryOffset;
2447         __u32 FileIndex;
2448         __le64 CreationTime;
2449         __le64 LastAccessTime;
2450         __le64 LastWriteTime;
2451         __le64 ChangeTime;
2452         __le64 EndOfFile;
2453         __le64 AllocationSize;
2454         __le32 ExtFileAttributes;
2455         __le32 FileNameLength;
2456         __le32 EaSize; /* length of the xattrs */
2457         __u8   ShortNameLength;
2458         __u8   Reserved;
2459         __u8   ShortName[12];
2460         char FileName[1];
2461 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2462
2463 typedef struct {
2464         __u32  ResumeKey;
2465         __le16 CreationDate; /* SMB Date */
2466         __le16 CreationTime; /* SMB Time */
2467         __le16 LastAccessDate;
2468         __le16 LastAccessTime;
2469         __le16 LastWriteDate;
2470         __le16 LastWriteTime;
2471         __le32 DataSize; /* File Size (EOF) */
2472         __le32 AllocationSize;
2473         __le16 Attributes; /* verify not u32 */
2474         __u8   FileNameLength;
2475         char FileName[1];
2476 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2477
2478
2479 struct win_dev {
2480         unsigned char type[8]; /* IntxCHR or IntxBLK */
2481         __le64 major;
2482         __le64 minor;
2483 } __attribute__((packed));
2484
2485 struct gea {
2486         unsigned char name_len;
2487         char name[1];
2488 } __attribute__((packed));
2489
2490 struct gealist {
2491         unsigned long list_len;
2492         struct gea list[1];
2493 } __attribute__((packed));
2494
2495 struct fea {
2496         unsigned char EA_flags;
2497         __u8 name_len;
2498         __le16 value_len;
2499         char name[1];
2500         /* optionally followed by value */
2501 } __attribute__((packed));
2502 /* flags for _FEA.fEA */
2503 #define FEA_NEEDEA         0x80 /* need EA bit */
2504
2505 struct fealist {
2506         __le32 list_len;
2507         struct fea list[1];
2508 } __attribute__((packed));
2509
2510 /* used to hold an arbitrary blob of data */
2511 struct data_blob {
2512         __u8 *data;
2513         size_t length;
2514         void (*free) (struct data_blob *data_blob);
2515 } __attribute__((packed));
2516
2517
2518 #ifdef CONFIG_CIFS_POSIX
2519 /*
2520         For better POSIX semantics from Linux client, (even better
2521         than the existing CIFS Unix Extensions) we need updated PDUs for:
2522
2523         1) PosixCreateX - to set and return the mode, inode#, device info and
2524         perhaps add a CreateDevice - to create Pipes and other special .inodes
2525         Also note POSIX open flags
2526         2) Close - to return the last write time to do cache across close
2527                 more safely
2528         3) FindFirst return unique inode number - what about resume key, two
2529         forms short (matches readdir) and full (enough info to cache inodes)
2530         4) Mkdir - set mode
2531
2532         And under consideration:
2533         5) FindClose2 (return nanosecond timestamp ??)
2534         6) Use nanosecond timestamps throughout all time fields if
2535            corresponding attribute flag is set
2536         7) sendfile - handle based copy
2537
2538         what about fixing 64 bit alignment
2539
2540         There are also various legacy SMB/CIFS requests used as is
2541
2542         From existing Lanman and NTLM dialects:
2543         --------------------------------------
2544         NEGOTIATE
2545         SESSION_SETUP_ANDX (BB which?)
2546         TREE_CONNECT_ANDX (BB which wct?)
2547         TREE_DISCONNECT (BB add volume timestamp on response)
2548         LOGOFF_ANDX
2549         DELETE (note delete open file behavior)
2550         DELETE_DIRECTORY
2551         READ_AND_X
2552         WRITE_AND_X
2553         LOCKING_AND_X (note posix lock semantics)
2554         RENAME (note rename across dirs and open file rename posix behaviors)
2555         NT_RENAME (for hardlinks) Is this good enough for all features?
2556         FIND_CLOSE2
2557         TRANSACTION2 (18 cases)
2558                 SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2559                 (BB verify that never need to set allocation size)
2560                 SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2561                          Unix ext?)
2562
2563         COPY (note support for copy across directories) - FUTURE, OPTIONAL
2564         setting/getting OS/2 EAs - FUTURE (BB can this handle
2565         setting Linux xattrs perfectly)         - OPTIONAL
2566         dnotify                                 - FUTURE, OPTIONAL
2567         quota                                   - FUTURE, OPTIONAL
2568
2569         Note that various requests implemented for NT interop such as
2570                 NT_TRANSACT (IOCTL) QueryReparseInfo
2571         are unneeded to servers compliant with the CIFS POSIX extensions
2572
2573         From CIFS Unix Extensions:
2574         -------------------------
2575         T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2576         T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2577         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2578         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)  BB check for missing
2579                                                         inode fields
2580                                 Actually a need QUERY_FILE_UNIX_INFO
2581                                 since has inode num
2582                                 BB what about a) blksize/blkbits/blocks
2583                                                           b) i_version
2584                                                           c) i_rdev
2585                                                           d) notify mask?
2586                                                           e) generation
2587                                                           f) size_seqcount
2588         T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2589         TRANS2_GET_DFS_REFERRAL               - OPTIONAL but recommended
2590         T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2591  */
2592
2593 /* xsymlink is a symlink format (used by MacOS) that can be used
2594    to save symlink info in a regular file when
2595    mounted to operating systems that do not
2596    support the cifs Unix extensions or EAs (for xattr
2597    based symlinks).  For such a file to be recognized
2598    as containing symlink data:
2599
2600    1) file size must be 1067,
2601    2) signature must begin file data,
2602    3) length field must be set to ASCII representation
2603         of a number which is less than or equal to 1024,
2604    4) md5 must match that of the path data */
2605
2606 struct xsymlink {
2607         /* 1067 bytes */
2608         char signature[4]; /* XSym */ /* not null terminated */
2609         char cr0;         /* \n */
2610 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2611         char length[4];
2612         char cr1;         /* \n */
2613 /* md5 of valid subset of path ie path[0] through path[length-1] */
2614         __u8 md5[32];
2615         char cr2;        /* \n */
2616 /* if room left, then end with \n then 0x20s by convention but not required */
2617         char path[1024];
2618 } __attribute__((packed));
2619
2620 typedef struct file_xattr_info {
2621         /* BB do we need another field for flags? BB */
2622         __u32 xattr_name_len;
2623         __u32 xattr_value_len;
2624         char  xattr_name[0];
2625         /* followed by xattr_value[xattr_value_len], no pad */
2626 } __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
2627                                               level 0x205 */
2628
2629
2630 /* flags for chattr command */
2631 #define EXT_SECURE_DELETE               0x00000001 /* EXT3_SECRM_FL */
2632 #define EXT_ENABLE_UNDELETE             0x00000002 /* EXT3_UNRM_FL */
2633 /* Reserved for compress file 0x4 */
2634 #define EXT_SYNCHRONOUS                 0x00000008 /* EXT3_SYNC_FL */
2635 #define EXT_IMMUTABLE_FL                0x00000010 /* EXT3_IMMUTABLE_FL */
2636 #define EXT_OPEN_APPEND_ONLY            0x00000020 /* EXT3_APPEND_FL */
2637 #define EXT_DO_NOT_BACKUP               0x00000040 /* EXT3_NODUMP_FL */
2638 #define EXT_NO_UPDATE_ATIME             0x00000080 /* EXT3_NOATIME_FL */
2639 /* 0x100 through 0x800 reserved for compression flags and are GET-ONLY */
2640 #define EXT_HASH_TREE_INDEXED_DIR       0x00001000 /* GET-ONLY EXT3_INDEX_FL */
2641 /* 0x2000 reserved for IMAGIC_FL */
2642 #define EXT_JOURNAL_THIS_FILE   0x00004000 /* GET-ONLY EXT3_JOURNAL_DATA_FL */
2643 /* 0x8000 reserved for EXT3_NOTAIL_FL */
2644 #define EXT_SYNCHRONOUS_DIR             0x00010000 /* EXT3_DIRSYNC_FL */
2645 #define EXT_TOPDIR                      0x00020000 /* EXT3_TOPDIR_FL */
2646
2647 #define EXT_SET_MASK                    0x000300FF
2648 #define EXT_GET_MASK                    0x0003DFFF
2649
2650 typedef struct file_chattr_info {
2651         __le64  mask; /* list of all possible attribute bits */
2652         __le64  mode; /* list of actual attribute bits on this inode */
2653 } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
2654                                                 (chattr, chflags) level 0x206 */
2655 #endif                          /* POSIX */
2656 #endif                          /* _CIFSPDU_H */