fs/cifs/cifspdu.h

   1 /*
   2  *   fs/cifs/cifspdu.h
   3  *
   4  *   Copyright (c) International Business Machines  Corp., 2002
   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
  27 #define CIFS_PROT   0
  28 #define BAD_PROT    CIFS_PROT+1
  29
  30 /* SMB command codes */
  31 /* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
  32  (ie which include no useful data other than the SMB error code itself).
  33  Knowing this helps avoid response buffer allocations and copy in some cases */
  34 #define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
  35 #define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
  36 #define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
  37 #define SMB_COM_DELETE                0x06 /* trivial response */
  38 #define SMB_COM_RENAME                0x07 /* trivial response */
  39 #define SMB_COM_QUERY_INFORMATION     0x08 /* aka getattr */
  40 #define SMB_COM_SETATTR               0x09 /* trivial response */
  41 #define SMB_COM_LOCKING_ANDX          0x24 /* trivial response */
  42 #define SMB_COM_COPY                  0x29 /* trivial rsp, fail filename ignrd*/
  43 #define SMB_COM_OPEN_ANDX             0x2D /* Legacy open for old servers */
  44 #define SMB_COM_READ_ANDX             0x2E
  45 #define SMB_COM_WRITE_ANDX            0x2F
  46 #define SMB_COM_TRANSACTION2          0x32
  47 #define SMB_COM_TRANSACTION2_SECONDARY 0x33
  48 #define SMB_COM_FIND_CLOSE2           0x34 /* trivial response */
  49 #define SMB_COM_TREE_DISCONNECT       0x71 /* trivial response */
  50 #define SMB_COM_NEGOTIATE             0x72
  51 #define SMB_COM_SESSION_SETUP_ANDX    0x73
  52 #define SMB_COM_LOGOFF_ANDX           0x74 /* trivial response */
  53 #define SMB_COM_TREE_CONNECT_ANDX     0x75
  54 #define SMB_COM_NT_TRANSACT           0xA0
  55 #define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
  56 #define SMB_COM_NT_CREATE_ANDX        0xA2
  57 #define SMB_COM_NT_CANCEL             0xA4 /* no response */
  58 #define SMB_COM_NT_RENAME             0xA5 /* trivial response */
  59
  60 /* Transact2 subcommand codes */
  61 #define TRANS2_OPEN                   0x00
  62 #define TRANS2_FIND_FIRST             0x01
  63 #define TRANS2_FIND_NEXT              0x02
  64 #define TRANS2_QUERY_FS_INFORMATION   0x03
  65 #define TRANS2_SET_FS_INFORMATION     0x04
  66 #define TRANS2_QUERY_PATH_INFORMATION 0x05
  67 #define TRANS2_SET_PATH_INFORMATION   0x06
  68 #define TRANS2_QUERY_FILE_INFORMATION 0x07
  69 #define TRANS2_SET_FILE_INFORMATION   0x08
  70 #define TRANS2_GET_DFS_REFERRAL       0x10
  71 #define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
  72
  73 /* NT Transact subcommand codes */
  74 #define NT_TRANSACT_CREATE            0x01
  75 #define NT_TRANSACT_IOCTL             0x02
  76 #define NT_TRANSACT_SET_SECURITY_DESC 0x03
  77 #define NT_TRANSACT_NOTIFY_CHANGE     0x04
  78 #define NT_TRANSACT_RENAME            0x05
  79 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
  80 #define NT_TRANSACT_GET_USER_QUOTA    0x07
  81 #define NT_TRANSACT_SET_USER_QUOTA    0x08
  82
  83 #define MAX_CIFS_HDR_SIZE 256   /* is future chained NTCreateXReadX bigger? */
  84
  85 /* internal cifs vfs structures */
  86 /*****************************************************************
  87  * All constants go here
  88  *****************************************************************
  89  */
  90
  91 /*
  92  * Starting value for maximum SMB size negotiation
  93  */
  94 #define CIFS_MAX_MSGSIZE (4*4096)
  95
  96 /*
  97  * Size of encrypted user password in bytes
  98  */
  99 #define CIFS_ENCPWD_SIZE (16)
 100
 101 /*
 102  * Size of the crypto key returned on the negotiate SMB in bytes
 103  */
 104 #define CIFS_CRYPTO_KEY_SIZE (8)
 105
 106 /*
 107  * Size of the session key (crypto key encrypted with the password
 108  */
 109 #define CIFS_SESSION_KEY_SIZE (24)
 110
 111 /*
 112  * Maximum user name length
 113  */
 114 #define CIFS_UNLEN (20)
 115
 116 /*
 117  * Flags on SMB open
 118  */
 119 #define SMBOPEN_WRITE_THROUGH 0x4000
 120 #define SMBOPEN_DENY_ALL      0x0010
 121 #define SMBOPEN_DENY_WRITE    0x0020
 122 #define SMBOPEN_DENY_READ     0x0030
 123 #define SMBOPEN_DENY_NONE     0x0040
 124 #define SMBOPEN_READ          0x0000
 125 #define SMBOPEN_WRITE         0x0001
 126 #define SMBOPEN_READWRITE     0x0002
 127 #define SMBOPEN_EXECUTE       0x0003
 128
 129 #define SMBOPEN_OCREATE       0x0010
 130 #define SMBOPEN_OTRUNC        0x0002
 131 #define SMBOPEN_OAPPEND       0x0001
 132
 133 /*
 134  * SMB flag definitions
 135  */
 136 #define SMBFLG_EXTD_LOCK 0x01   /* server supports lock-read write-unlock smb */
 137 #define SMBFLG_RCV_POSTED 0x02  /* obsolete */
 138 #define SMBFLG_RSVD 0x04
 139 #define SMBFLG_CASELESS 0x08    /* all pathnames treated as caseless (off
 140                                 implies case sensitive file handling request) */
 141 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10       /* obsolete */
 142 #define SMBFLG_OLD_OPLOCK 0x20  /* obsolete */
 143 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40   /* obsolete */
 144 #define SMBFLG_RESPONSE 0x80    /* this PDU is a response from server */
 145
 146 /*
 147  * SMB flag2 definitions
 148  */
 149 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3)
 150                                                    path names in response */
 151 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
 152 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
 153 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
 154 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
 155 #define SMBFLG2_DFS cpu_to_le16(0x1000)
 156 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
 157 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
 158 #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
 159
 160 /*
 161  * These are the file access permission bits defined in CIFS for the
 162  * NTCreateAndX as well as the level 0x107
 163  * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
 164  * responds with the AccessFlags.
 165  * The AccessFlags specifies the access permissions a caller has to the
 166  * file and can have any suitable combination of the following values:
 167  */
 168
 169 #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
 170 #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
 171 #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
 172 #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
 173                                           /* with the file can be read        */
 174 #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
 175                                           /* with the file can be written     */
 176 #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
 177                                           /* the file using system paging I/O */
 178 #define FILE_DELETE_CHILD     0x00000040
 179 #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
 180                                           /* file can be read                 */
 181 #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
 182                                           /* file can be written              */
 183 #define DELETE                0x00010000  /* The file can be deleted          */
 184 #define READ_CONTROL          0x00020000  /* The access control list and      */
 185                                           /* ownership associated with the    */
 186                                           /* file can be read                 */
 187 #define WRITE_DAC             0x00040000  /* The access control list and      */
 188                                           /* ownership associated with the    */
 189                                           /* file can be written.             */
 190 #define WRITE_OWNER           0x00080000  /* Ownership information associated */
 191                                           /* with the file can be written     */
 192 #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
 193                                           /* synchronize with the completion  */
 194                                           /* of an input/output request       */
 195 #define GENERIC_ALL           0x10000000
 196 #define GENERIC_EXECUTE       0x20000000
 197 #define GENERIC_WRITE         0x40000000
 198 #define GENERIC_READ          0x80000000
 199                                          /* In summary - Relevant file       */
 200                                          /* access flags from CIFS are       */
 201                                          /* file_read_data, file_write_data  */
 202                                          /* file_execute, file_read_attributes*/
 203                                          /* write_dac, and delete.           */
 204
 205 /*
 206  * Invalid readdir handle
 207  */
 208 #define CIFS_NO_HANDLE        0xFFFF
 209
 210 /* IPC$ in ASCII */
 211 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
 212
 213 /* IPC$ in Unicode */
 214 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
 215
 216 /* Unicode Null terminate 2 bytes of 0 */
 217 #define UNICODE_NULL "\x00\x00"
 218 #define ASCII_NULL 0x00
 219
 220 /*
 221  * Server type values (returned on EnumServer API
 222  */
 223 #define CIFS_SV_TYPE_DC     0x00000008
 224 #define CIFS_SV_TYPE_BACKDC 0x00000010
 225
 226 /*
 227  * Alias type flags (From EnumAlias API call
 228  */
 229 #define CIFS_ALIAS_TYPE_FILE 0x0001
 230 #define CIFS_SHARE_TYPE_FILE 0x0000
 231
 232 /*
 233  * File Attribute flags
 234  */
 235 #define ATTR_READONLY  0x0001
 236 #define ATTR_HIDDEN    0x0002
 237 #define ATTR_SYSTEM    0x0004
 238 #define ATTR_VOLUME    0x0008
 239 #define ATTR_DIRECTORY 0x0010
 240 #define ATTR_ARCHIVE   0x0020
 241 #define ATTR_DEVICE    0x0040
 242 #define ATTR_NORMAL    0x0080
 243 #define ATTR_TEMPORARY 0x0100
 244 #define ATTR_SPARSE    0x0200
 245 #define ATTR_REPARSE   0x0400
 246 #define ATTR_COMPRESSED 0x0800
 247 #define ATTR_OFFLINE    0x1000  /* ie file not immediately available -
 248                                         on offline storage */
 249 #define ATTR_NOT_CONTENT_INDEXED 0x2000
 250 #define ATTR_ENCRYPTED  0x4000
 251 #define ATTR_POSIX_SEMANTICS 0x01000000
 252 #define ATTR_BACKUP_SEMANTICS 0x02000000
 253 #define ATTR_DELETE_ON_CLOSE 0x04000000
 254 #define ATTR_SEQUENTIAL_SCAN 0x08000000
 255 #define ATTR_RANDOM_ACCESS   0x10000000
 256 #define ATTR_NO_BUFFERING    0x20000000
 257 #define ATTR_WRITE_THROUGH   0x80000000
 258
 259 /* ShareAccess flags */
 260 #define FILE_NO_SHARE     0x00000000
 261 #define FILE_SHARE_READ   0x00000001
 262 #define FILE_SHARE_WRITE  0x00000002
 263 #define FILE_SHARE_DELETE 0x00000004
 264 #define FILE_SHARE_ALL    0x00000007
 265
 266 /* CreateDisposition flags */
 267 #define FILE_SUPERSEDE    0x00000000
 268 #define FILE_OPEN         0x00000001
 269 #define FILE_CREATE       0x00000002
 270 #define FILE_OPEN_IF      0x00000003
 271 #define FILE_OVERWRITE    0x00000004
 272 #define FILE_OVERWRITE_IF 0x00000005
 273
 274 /* CreateOptions */
 275 #define CREATE_NOT_FILE         0x00000001      /* if set must not be file */
 276 #define CREATE_WRITE_THROUGH    0x00000002
 277 #define CREATE_SEQUENTIAL       0x00000004
 278 #define CREATE_SYNC_ALERT       0x00000010
 279 #define CREATE_ASYNC_ALERT      0x00000020
 280 #define CREATE_NOT_DIR          0x00000040    /* if set must not be directory */
 281 #define CREATE_NO_EA_KNOWLEDGE  0x00000200
 282 #define CREATE_EIGHT_DOT_THREE  0x00000400
 283 #define CREATE_RANDOM_ACCESS    0x00000800
 284 #define CREATE_DELETE_ON_CLOSE  0x00001000
 285 #define CREATE_OPEN_BY_ID       0x00002000
 286 #define OPEN_REPARSE_POINT      0x00200000
 287 #define CREATE_OPTIONS_MASK     0x007FFFFF
 288 #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
 289
 290 /* ImpersonationLevel flags */
 291 #define SECURITY_ANONYMOUS      0
 292 #define SECURITY_IDENTIFICATION 1
 293 #define SECURITY_IMPERSONATION  2
 294 #define SECURITY_DELEGATION     3
 295
 296 /* SecurityFlags */
 297 #define SECURITY_CONTEXT_TRACKING 0x01
 298 #define SECURITY_EFFECTIVE_ONLY   0x02
 299
 300 /*
 301  * Default PID value, used in all SMBs where the PID is not important
 302  */
 303 #define CIFS_DFT_PID  0x1234
 304
 305 /*
 306  * We use the same routine for Copy and Move SMBs.  This flag is used to
 307  * distinguish
 308  */
 309 #define CIFS_COPY_OP 1
 310 #define CIFS_RENAME_OP 2
 311
 312 #define GETU16(var)  (*((__u16 *)var))  /* BB check for endian issues */
 313 #define GETU32(var)  (*((__u32 *)var))  /* BB check for endian issues */
 314
 315 struct smb_hdr {
 316         __u32 smb_buf_length;   /* big endian on wire *//* BB length is only two
 317                 or three bytes - with one or two byte type preceding it that are
 318                 zero - we could mask the type byte off just in case BB */
 319         __u8 Protocol[4];
 320         __u8 Command;
 321         union {
 322                 struct {
 323                         __u8 ErrorClass;
 324                         __u8 Reserved;
 325                         __le16 Error;
 326                 } __attribute__((packed)) DosError;
 327                 __le32 CifsError;
 328         } __attribute__((packed)) Status;
 329         __u8 Flags;
 330         __le16 Flags2;          /* note: le */
 331         __le16 PidHigh;
 332         union {
 333                 struct {
 334                         __le32 SequenceNumber;  /* le */
 335                         __u32 Reserved; /* zero */
 336                 } __attribute__((packed)) Sequence;
 337                 __u8 SecuritySignature[8];      /* le */
 338         } __attribute__((packed)) Signature;
 339         __u8 pad[2];
 340         __u16 Tid;
 341         __le16 Pid;
 342         __u16 Uid;
 343         __u16 Mid;
 344         __u8 WordCount;
 345 } __attribute__((packed));
 346 /* given a pointer to an smb_hdr retrieve the value of byte count */
 347 #define BCC(smb_var) ( *(__u16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) ) )
 348 #define BCC_LE(smb_var) ( *(__le16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) ) )
 349 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
 350 #define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) + 2 )
 351
 352 /*
 353  * Computer Name Length
 354  */
 355 #define CNLEN 15
 356
 357 /*
 358  * Share Name Length                                      @S8A
 359  * Note:  This length is limited by the SMB used to get   @S8A
 360  *        the Share info.   NetShareEnum only returns 13  @S8A
 361  *        chars, including the null termination.          @S8A
 362  */
 363 #define SNLEN 12                /*@S8A */
 364
 365 /*
 366  * Comment Length
 367  */
 368 #define MAXCOMMENTLEN 40
 369
 370 /*
 371  * The OS/2 maximum path name
 372  */
 373 #define MAX_PATHCONF 256
 374
 375 /*
 376  *  SMB frame definitions  (following must be packed structs)
 377  *  See the SNIA CIFS Specification for details.
 378  *
 379  *  The Naming convention is the lower case version of the
 380  *  smb command code name for the struct and this is typedef to the
 381  *  uppercase version of the same name with the prefix SMB_ removed
 382  *  for brevity.  Although typedefs are not commonly used for
 383  *  structure definitions in the Linux kernel, their use in the
 384  *  CIFS standards document, which this code is based on, may
 385  *  make this one of the cases where typedefs for structures make
 386  *  sense to improve readability for readers of the standards doc.
 387  *  Typedefs can always be removed later if they are too distracting
 388  *  and they are only used for the CIFSs PDUs themselves, not
 389  *  internal cifs vfs structures
 390  *
 391  */
 392
 393 typedef struct negotiate_req {
 394         struct smb_hdr hdr;     /* wct = 0 */
 395         __le16 ByteCount;
 396         unsigned char DialectsArray[1];
 397 } __attribute__((packed)) NEGOTIATE_REQ;
 398
 399 typedef struct negotiate_rsp {
 400         struct smb_hdr hdr;     /* wct = 17 */
 401         __le16 DialectIndex;
 402         __u8 SecurityMode;
 403         __le16 MaxMpxCount;
 404         __le16 MaxNumberVcs;
 405         __le32 MaxBufferSize;
 406         __le32 MaxRawSize;
 407         __le32 SessionKey;
 408         __le32 Capabilities;    /* see below */
 409         __le32 SystemTimeLow;
 410         __le32 SystemTimeHigh;
 411         __le16 ServerTimeZone;
 412         __u8 EncryptionKeyLength;
 413         __u16 ByteCount;
 414         union {
 415                 unsigned char EncryptionKey[1]; /* cap extended security off */
 416                 /* followed by Domain name - if extended security is off */
 417                 /* followed by 16 bytes of server GUID */
 418                 /* then security blob if cap_extended_security negotiated */
 419                 struct {
 420                         unsigned char GUID[16];
 421                         unsigned char SecurityBlob[1];
 422                 } __attribute__((packed)) extended_response;
 423         } __attribute__((packed)) u;
 424 } __attribute__((packed)) NEGOTIATE_RSP;
 425
 426 /* SecurityMode bits */
 427 #define SECMODE_USER          0x01      /* off indicates share level security */
 428 #define SECMODE_PW_ENCRYPT    0x02
 429 #define SECMODE_SIGN_ENABLED  0x04      /* SMB security signatures enabled */
 430 #define SECMODE_SIGN_REQUIRED 0x08      /* SMB security signatures required */
 431
 432 /* Negotiate response Capabilities */
 433 #define CAP_RAW_MODE           0x00000001
 434 #define CAP_MPX_MODE           0x00000002
 435 #define CAP_UNICODE            0x00000004
 436 #define CAP_LARGE_FILES        0x00000008
 437 #define CAP_NT_SMBS            0x00000010       /* implies CAP_NT_FIND */
 438 #define CAP_RPC_REMOTE_APIS    0x00000020
 439 #define CAP_STATUS32           0x00000040
 440 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 441 #define CAP_LOCK_AND_READ      0x00000100
 442 #define CAP_NT_FIND            0x00000200
 443 #define CAP_DFS                0x00001000
 444 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
 445 #define CAP_LARGE_READ_X       0x00004000
 446 #define CAP_LARGE_WRITE_X      0x00008000
 447 #define CAP_UNIX               0x00800000
 448 #define CAP_RESERVED           0x02000000
 449 #define CAP_BULK_TRANSFER      0x20000000
 450 #define CAP_COMPRESSED_DATA    0x40000000
 451 #define CAP_EXTENDED_SECURITY  0x80000000
 452
 453 typedef union smb_com_session_setup_andx {
 454         struct {                /* request format */
 455                 struct smb_hdr hdr;     /* wct = 12 */
 456                 __u8 AndXCommand;
 457                 __u8 AndXReserved;
 458                 __le16 AndXOffset;
 459                 __le16 MaxBufferSize;
 460                 __le16 MaxMpxCount;
 461                 __le16 VcNumber;
 462                 __u32 SessionKey;
 463                 __le16 SecurityBlobLength;
 464                 __u32 Reserved;
 465                 __le32 Capabilities;    /* see below */
 466                 __le16 ByteCount;
 467                 unsigned char SecurityBlob[1];  /* followed by */
 468                 /* STRING NativeOS */
 469                 /* STRING NativeLanMan */
 470         } __attribute__((packed)) req;  /* NTLM request format (with
 471                                         extended security */
 472
 473         struct {                /* request format */
 474                 struct smb_hdr hdr;     /* wct = 13 */
 475                 __u8 AndXCommand;
 476                 __u8 AndXReserved;
 477                 __le16 AndXOffset;
 478                 __le16 MaxBufferSize;
 479                 __le16 MaxMpxCount;
 480                 __le16 VcNumber;
 481                 __u32 SessionKey;
 482                 __le16 CaseInsensitivePasswordLength; /* ASCII password len */
 483                 __le16 CaseSensitivePasswordLength; /* Unicode password length*/
 484                 __u32 Reserved; /* see below */
 485                 __le32 Capabilities;
 486                 __le16 ByteCount;
 487                 unsigned char CaseInsensitivePassword[1];     /* followed by: */
 488                 /* unsigned char * CaseSensitivePassword; */
 489                 /* STRING AccountName */
 490                 /* STRING PrimaryDomain */
 491                 /* STRING NativeOS */
 492                 /* STRING NativeLanMan */
 493         } __attribute__((packed)) req_no_secext; /* NTLM request format (without
 494                                                         extended security */
 495
 496         struct {                /* default (NTLM) response format */
 497                 struct smb_hdr hdr;     /* wct = 4 */
 498                 __u8 AndXCommand;
 499                 __u8 AndXReserved;
 500                 __le16 AndXOffset;
 501                 __le16 Action;  /* see below */
 502                 __le16 SecurityBlobLength;
 503                 __u16 ByteCount;
 504                 unsigned char SecurityBlob[1];  /* followed by */
 505 /*      unsigned char  * NativeOS;      */
 506 /*      unsigned char  * NativeLanMan;  */
 507 /*      unsigned char  * PrimaryDomain; */
 508         } __attribute__((packed)) resp;                 /* NTLM response format (with or without extended security */
 509
 510         struct {                /* request format */
 511                 struct smb_hdr hdr;     /* wct = 10 */
 512                 __u8 AndXCommand;
 513                 __u8 AndXReserved;
 514                 __le16 AndXOffset;
 515                 __le16 MaxBufferSize;
 516                 __le16 MaxMpxCount;
 517                 __le16 VcNumber;
 518                 __u32 SessionKey;
 519                 __le16 PassswordLength;
 520                 __u32 Reserved;
 521                 __le16 ByteCount;
 522                 unsigned char AccountPassword[1];       /* followed by */
 523                 /* STRING AccountName */
 524                 /* STRING PrimaryDomain */
 525                 /* STRING NativeOS */
 526                 /* STRING NativeLanMan */
 527         } __attribute__((packed)) old_req;              /* pre-NTLM (LANMAN2.1) request format */
 528
 529         struct {                /* default (NTLM) response format */
 530                 struct smb_hdr hdr;     /* wct = 3 */
 531                 __u8 AndXCommand;
 532                 __u8 AndXReserved;
 533                 __le16 AndXOffset;
 534                 __le16 Action;  /* see below */
 535                 __u16 ByteCount;
 536                 unsigned char NativeOS[1];      /* followed by */
 537 /*      unsigned char * NativeLanMan; */
 538 /*      unsigned char * PrimaryDomain; */
 539         } __attribute__((packed)) old_resp;             /* pre-NTLM (LANMAN2.1) response format */
 540 } __attribute__((packed)) SESSION_SETUP_ANDX;
 541
 542 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
 543
 544 /* Capabilities bits (for NTLM SessSetup request) */
 545 #define CAP_UNICODE            0x00000004
 546 #define CAP_LARGE_FILES        0x00000008
 547 #define CAP_NT_SMBS            0x00000010
 548 #define CAP_STATUS32           0x00000040
 549 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 550 #define CAP_NT_FIND            0x00000200       /* reserved should be zero
 551                                 (because NT_SMBs implies the same thing?) */
 552 #define CAP_BULK_TRANSFER      0x20000000
 553 #define CAP_EXTENDED_SECURITY  0x80000000
 554
 555 /* Action bits */
 556 #define GUEST_LOGIN 1
 557
 558 typedef struct smb_com_tconx_req {
 559         struct smb_hdr hdr;     /* wct = 4 */
 560         __u8 AndXCommand;
 561         __u8 AndXReserved;
 562         __le16 AndXOffset;
 563         __le16 Flags;           /* see below */
 564         __le16 PasswordLength;
 565         __le16 ByteCount;
 566         unsigned char Password[1];      /* followed by */
 567 /* STRING Path    *//* \\server\share name */
 568         /* STRING Service */
 569 } __attribute__((packed)) TCONX_REQ;
 570
 571 typedef struct smb_com_tconx_rsp {
 572         struct smb_hdr hdr;     /* wct = 3 *//* note that Win2000 has sent wct=7 in some cases on responses. Four unspecified words followed OptionalSupport */
 573         __u8 AndXCommand;
 574         __u8 AndXReserved;
 575         __le16 AndXOffset;
 576         __le16 OptionalSupport; /* see below */
 577         __u16 ByteCount;
 578         unsigned char Service[1];       /* always ASCII, not Unicode */
 579         /* STRING NativeFileSystem */
 580 } __attribute__((packed)) TCONX_RSP;
 581
 582 /* tree connect Flags */
 583 #define DISCONNECT_TID          0x0001
 584 #define TCON_EXTENDED_SECINFO   0x0008
 585 /* OptionalSupport bits */
 586 #define SMB_SUPPORT_SEARCH_BITS 0x0001  /* "must have" directory search bits
 587                                          (exclusive searches supported) */
 588 #define SMB_SHARE_IS_IN_DFS     0x0002
 589
 590 typedef struct smb_com_logoff_andx_req {
 591         struct smb_hdr hdr;     /* wct = 2 */
 592         __u8 AndXCommand;
 593         __u8 AndXReserved;
 594         __u16 AndXOffset;
 595         __u16 ByteCount;
 596 } __attribute__((packed)) LOGOFF_ANDX_REQ;
 597
 598 typedef struct smb_com_logoff_andx_rsp {
 599         struct smb_hdr hdr;     /* wct = 2 */
 600         __u8 AndXCommand;
 601         __u8 AndXReserved;
 602         __u16 AndXOffset;
 603         __u16 ByteCount;
 604 } __attribute__((packed)) LOGOFF_ANDX_RSP;
 605
 606 typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on
 607                                         tree_connect PDU to effect disconnect */
 608                                         /* tdis is probably simplest SMB PDU */
 609         struct {
 610                 struct smb_hdr hdr;     /* wct = 0 */
 611                 __u16 ByteCount;        /* bcc = 0 */
 612         } __attribute__((packed)) req;
 613         struct {
 614                 struct smb_hdr hdr;     /* wct = 0 */
 615                 __u16 ByteCount;        /* bcc = 0 */
 616         } __attribute__((packed)) resp;
 617 } __attribute__((packed)) TREE_DISCONNECT;
 618
 619 typedef struct smb_com_close_req {
 620         struct smb_hdr hdr;     /* wct = 3 */
 621         __u16 FileID;
 622         __u32 LastWriteTime;    /* should be zero */
 623         __u16 ByteCount;        /* 0 */
 624 } __attribute__((packed)) CLOSE_REQ;
 625
 626 typedef struct smb_com_close_rsp {
 627         struct smb_hdr hdr;     /* wct = 0 */
 628         __u16 ByteCount;        /* bct = 0 */
 629 } __attribute__((packed)) CLOSE_RSP;
 630
 631 typedef struct smb_com_findclose_req {
 632         struct smb_hdr hdr; /* wct = 1 */
 633         __u16 FileID;
 634         __u16 ByteCount;    /* 0 */
 635 } __attribute__((packed)) FINDCLOSE_REQ;
 636
 637 /* OpenFlags */
 638 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
 639 #define REQ_OPLOCK         0x00000002
 640 #define REQ_BATCHOPLOCK    0x00000004
 641 #define REQ_OPENDIRONLY    0x00000008
 642
 643 typedef struct smb_com_open_req {       /* also handles create */
 644         struct smb_hdr hdr;     /* wct = 24 */
 645         __u8 AndXCommand;
 646         __u8 AndXReserved;
 647         __le16 AndXOffset;
 648         __u8 Reserved;          /* Must Be Zero */
 649         __le16 NameLength;
 650         __le32 OpenFlags;
 651         __le32 RootDirectoryFid;
 652         __le32 DesiredAccess;
 653         __le64 AllocationSize;
 654         __le32 FileAttributes;
 655         __le32 ShareAccess;
 656         __le32 CreateDisposition;
 657         __le32 CreateOptions;
 658         __le32 ImpersonationLevel;
 659         __u8 SecurityFlags;
 660         __le16 ByteCount;
 661         char fileName[1];
 662 } __attribute__((packed)) OPEN_REQ;
 663
 664 /* open response: oplock levels */
 665 #define OPLOCK_NONE      0
 666 #define OPLOCK_EXCLUSIVE 1
 667 #define OPLOCK_BATCH     2
 668 #define OPLOCK_READ      3  /* level 2 oplock */
 669
 670 /* open response for CreateAction shifted left */
 671 #define CIFS_CREATE_ACTION 0x20000 /* file created */
 672
 673 typedef struct smb_com_open_rsp {
 674         struct smb_hdr hdr;     /* wct = 34 BB */
 675         __u8 AndXCommand;
 676         __u8 AndXReserved;
 677         __le16 AndXOffset;
 678         __u8 OplockLevel;
 679         __u16 Fid;
 680         __le32 CreateAction;
 681         __le64 CreationTime;
 682         __le64 LastAccessTime;
 683         __le64 LastWriteTime;
 684         __le64 ChangeTime;
 685         __le32 FileAttributes;
 686         __le64 AllocationSize;
 687         __le64 EndOfFile;
 688         __le16 FileType;
 689         __le16 DeviceState;
 690         __u8 DirectoryFlag;
 691         __u16 ByteCount;        /* bct = 0 */
 692 } __attribute__((packed)) OPEN_RSP;
 693
 694 /* format of legacy open request */
 695 typedef struct smb_com_openx_req {
 696         struct smb_hdr  hdr;    /* wct = 15 */
 697         __u8 AndXCommand;
 698         __u8 AndXReserved;
 699         __le16 AndXOffset;
 700         __le16 OpenFlags;
 701         __le16 Mode;
 702         __le16 Sattr; /* search attributes */
 703         __le16 FileAttributes;  /* dos attrs */
 704         __le32 CreateTime; /* os2 format */
 705         __le16 OpenFunction;
 706         __le32 EndOfFile;
 707         __le32 Timeout;
 708         __le32 Reserved;
 709         __le16  ByteCount;  /* file name follows */
 710         char   fileName[1];
 711 } __attribute__((packed)) OPENX_REQ;
 712
 713 typedef struct smb_com_openx_rsp {
 714         struct smb_hdr  hdr;    /* wct = 15 */
 715         __u8 AndXCommand;
 716         __u8 AndXReserved;
 717         __le16 AndXOffset;
 718         __u16  Fid;
 719         __le16 FileAttributes;
 720         __le32 LastWriteTime; /* os2 format */
 721         __le32 EndOfFile;
 722         __le16 Access;
 723         __le16 FileType;
 724         __le16 IPCState;
 725         __le16 Action;
 726         __u32  FileId;
 727         __u16  Reserved;
 728         __u16  ByteCount;
 729 } __attribute__((packed)) OPENX_RSP;
 730
 731 /* Legacy write request for older servers */
 732 typedef struct smb_com_writex_req {
 733         struct smb_hdr hdr;     /* wct = 12 */
 734         __u8 AndXCommand;
 735         __u8 AndXReserved;
 736         __le16 AndXOffset;
 737         __u16 Fid;
 738         __le32 OffsetLow;
 739         __u32 Reserved; /* Timeout */
 740         __le16 WriteMode; /* 1 = write through */
 741         __le16 Remaining;
 742         __le16 Reserved2;
 743         __le16 DataLengthLow;
 744         __le16 DataOffset;
 745         __le16 ByteCount;
 746         __u8 Pad;               /* BB check for whether padded to DWORD boundary and optimum performance here */
 747         char Data[0];
 748 } __attribute__((packed)) WRITEX_REQ;
 749
 750 typedef struct smb_com_write_req {
 751         struct smb_hdr hdr;     /* wct = 14 */
 752         __u8 AndXCommand;
 753         __u8 AndXReserved;
 754         __le16 AndXOffset;
 755         __u16 Fid;
 756         __le32 OffsetLow;
 757         __u32 Reserved;
 758         __le16 WriteMode;
 759         __le16 Remaining;
 760         __le16 DataLengthHigh;
 761         __le16 DataLengthLow;
 762         __le16 DataOffset;
 763         __le32 OffsetHigh;
 764         __le16 ByteCount;
 765         __u8 Pad;               /* BB check for whether padded to DWORD boundary and optimum performance here */
 766         char Data[0];
 767 } __attribute__((packed)) WRITE_REQ;
 768
 769 typedef struct smb_com_write_rsp {
 770         struct smb_hdr hdr;     /* wct = 6 */
 771         __u8 AndXCommand;
 772         __u8 AndXReserved;
 773         __le16 AndXOffset;
 774         __le16 Count;
 775         __le16 Remaining;
 776         __le16 CountHigh;
 777         __u16  Reserved;
 778         __u16 ByteCount;
 779 } __attribute__((packed)) WRITE_RSP;
 780
 781 /* legacy read request for older servers */
 782 typedef struct smb_com_readx_req {
 783         struct smb_hdr hdr;     /* wct = 10 */
 784         __u8 AndXCommand;
 785         __u8 AndXReserved;
 786         __le16 AndXOffset;
 787         __u16 Fid;
 788         __le32 OffsetLow;
 789         __le16 MaxCount;
 790         __le16 MinCount;                /* obsolete */
 791         __le32 Reserved;
 792         __le16 Remaining;
 793         __le16 ByteCount;
 794 } __attribute__((packed)) READX_REQ;
 795
 796 typedef struct smb_com_read_req {
 797         struct smb_hdr hdr;     /* wct = 12 */
 798         __u8 AndXCommand;
 799         __u8 AndXReserved;
 800         __le16 AndXOffset;
 801         __u16 Fid;
 802         __le32 OffsetLow;
 803         __le16 MaxCount;
 804         __le16 MinCount;                /* obsolete */
 805         __le32 MaxCountHigh;
 806         __le16 Remaining;
 807         __le32 OffsetHigh;
 808         __le16 ByteCount;
 809 } __attribute__((packed)) READ_REQ;
 810
 811 typedef struct smb_com_read_rsp {
 812         struct smb_hdr hdr;     /* wct = 12 */
 813         __u8 AndXCommand;
 814         __u8 AndXReserved;
 815         __le16 AndXOffset;
 816         __le16 Remaining;
 817         __le16 DataCompactionMode;
 818         __le16 Reserved;
 819         __le16 DataLength;
 820         __le16 DataOffset;
 821         __le16 DataLengthHigh;
 822         __u64 Reserved2;
 823         __u16 ByteCount;
 824         __u8 Pad;               /* BB check for whether padded to DWORD boundary and optimum performance here */
 825         char Data[1];
 826 } __attribute__((packed)) READ_RSP;
 827
 828 typedef struct locking_andx_range {
 829         __le16 Pid;
 830         __le16 Pad;
 831         __le32 OffsetHigh;
 832         __le32 OffsetLow;
 833         __le32 LengthHigh;
 834         __le32 LengthLow;
 835 } __attribute__((packed)) LOCKING_ANDX_RANGE;
 836
 837 #define LOCKING_ANDX_SHARED_LOCK     0x01
 838 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
 839 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
 840 #define LOCKING_ANDX_CANCEL_LOCK     0x08
 841 #define LOCKING_ANDX_LARGE_FILES     0x10       /* always on for us */
 842
 843 typedef struct smb_com_lock_req {
 844         struct smb_hdr hdr;     /* wct = 8 */
 845         __u8 AndXCommand;
 846         __u8 AndXReserved;
 847         __le16 AndXOffset;
 848         __u16 Fid;
 849         __u8 LockType;
 850         __u8 OplockLevel;
 851         __le32 Timeout;
 852         __le16 NumberOfUnlocks;
 853         __le16 NumberOfLocks;
 854         __le16 ByteCount;
 855         LOCKING_ANDX_RANGE Locks[1];
 856 } __attribute__((packed)) LOCK_REQ;
 857
 858
 859 typedef struct cifs_posix_lock {
 860         __le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
 861         __le16  lock_flags; /* 1 = Wait (only valid for setlock) */
 862         __le32  pid;
 863         __le64  start;
 864         __le64  length;
 865         /* BB what about additional owner info to identify network client */
 866 } __attribute__((packed)) CIFS_POSIX_LOCK;
 867
 868 typedef struct smb_com_lock_rsp {
 869         struct smb_hdr hdr;     /* wct = 2 */
 870         __u8 AndXCommand;
 871         __u8 AndXReserved;
 872         __le16 AndXOffset;
 873         __u16 ByteCount;
 874 } __attribute__((packed)) LOCK_RSP;
 875
 876 typedef struct smb_com_rename_req {
 877         struct smb_hdr hdr;     /* wct = 1 */
 878         __le16 SearchAttributes;        /* target file attributes */
 879         __le16 ByteCount;
 880         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
 881         unsigned char OldFileName[1];
 882         /* followed by __u8 BufferFormat2 */
 883         /* followed by NewFileName */
 884 } __attribute__((packed)) RENAME_REQ;
 885
 886         /* copy request flags */
 887 #define COPY_MUST_BE_FILE      0x0001
 888 #define COPY_MUST_BE_DIR       0x0002
 889 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
 890 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
 891 #define COPY_VERIFY_WRITES     0x0010
 892 #define COPY_TREE              0x0020
 893
 894 typedef struct smb_com_copy_req {
 895         struct smb_hdr hdr;     /* wct = 3 */
 896         __u16 Tid2;
 897         __le16 OpenFunction;
 898         __le16 Flags;
 899         __le16 ByteCount;
 900         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
 901         unsigned char OldFileName[1];
 902         /* followed by __u8 BufferFormat2 */
 903         /* followed by NewFileName string */
 904 } __attribute__((packed)) COPY_REQ;
 905
 906 typedef struct smb_com_copy_rsp {
 907         struct smb_hdr hdr;     /* wct = 1 */
 908         __le16 CopyCount;    /* number of files copied */
 909         __u16 ByteCount;    /* may be zero */
 910         __u8 BufferFormat;  /* 0x04 - only present if errored file follows */
 911         unsigned char ErrorFileName[1]; /* only present if error in copy */
 912 } __attribute__((packed)) COPY_RSP;
 913
 914 #define CREATE_HARD_LINK                0x103
 915 #define MOVEFILE_COPY_ALLOWED           0x0002
 916 #define MOVEFILE_REPLACE_EXISTING       0x0001
 917
 918 typedef struct smb_com_nt_rename_req {  /* A5 - also used for create hardlink */
 919         struct smb_hdr hdr;     /* wct = 4 */
 920         __le16 SearchAttributes;        /* target file attributes */
 921         __le16 Flags;           /* spec says Information Level */
 922         __le32 ClusterCount;
 923         __le16 ByteCount;
 924         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
 925         unsigned char OldFileName[1];
 926         /* followed by __u8 BufferFormat2 */
 927         /* followed by NewFileName */
 928 } __attribute__((packed)) NT_RENAME_REQ;
 929
 930 typedef struct smb_com_rename_rsp {
 931         struct smb_hdr hdr;     /* wct = 0 */
 932         __u16 ByteCount;        /* bct = 0 */
 933 } __attribute__((packed)) RENAME_RSP;
 934
 935 typedef struct smb_com_delete_file_req {
 936         struct smb_hdr hdr;     /* wct = 1 */
 937         __le16 SearchAttributes;
 938         __le16 ByteCount;
 939         __u8 BufferFormat;      /* 4 = ASCII */
 940         unsigned char fileName[1];
 941 } __attribute__((packed)) DELETE_FILE_REQ;
 942
 943 typedef struct smb_com_delete_file_rsp {
 944         struct smb_hdr hdr;     /* wct = 0 */
 945         __u16 ByteCount;        /* bct = 0 */
 946 } __attribute__((packed)) DELETE_FILE_RSP;
 947
 948 typedef struct smb_com_delete_directory_req {
 949         struct smb_hdr hdr;     /* wct = 0 */
 950         __le16 ByteCount;
 951         __u8 BufferFormat;      /* 4 = ASCII */
 952         unsigned char DirName[1];
 953 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
 954
 955 typedef struct smb_com_delete_directory_rsp {
 956         struct smb_hdr hdr;     /* wct = 0 */
 957         __u16 ByteCount;        /* bct = 0 */
 958 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
 959
 960 typedef struct smb_com_create_directory_req {
 961         struct smb_hdr hdr;     /* wct = 0 */
 962         __le16 ByteCount;
 963         __u8 BufferFormat;      /* 4 = ASCII */
 964         unsigned char DirName[1];
 965 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
 966
 967 typedef struct smb_com_create_directory_rsp {
 968         struct smb_hdr hdr;     /* wct = 0 */
 969         __u16 ByteCount;        /* bct = 0 */
 970 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
 971
 972 typedef struct smb_com_query_information_req {
 973         struct smb_hdr hdr;     /* wct = 0 */
 974         __le16 ByteCount;       /* 1 + namelen + 1 */
 975         __u8 BufferFormat;      /* 4 = ASCII */
 976         unsigned char FileName[1];
 977 } __attribute__((packed)) QUERY_INFORMATION_REQ;
 978
 979 typedef struct smb_com_query_information_rsp {
 980         struct smb_hdr hdr;     /* wct = 10 */
 981         __le16 attr;
 982         __le32  last_write_time;
 983         __le32 size;
 984         __u16  reserved[5];
 985         __le16 ByteCount;       /* bcc = 0 */
 986 } __attribute__((packed)) QUERY_INFORMATION_RSP;
 987
 988 typedef struct smb_com_setattr_req {
 989         struct smb_hdr hdr; /* wct = 8 */
 990         __le16 attr;
 991         __le16 time_low;
 992         __le16 time_high;
 993         __le16 reserved[5]; /* must be zero */
 994         __u16  ByteCount;
 995         __u8   BufferFormat; /* 4 = ASCII */
 996         unsigned char fileName[1];
 997 } __attribute__((packed)) SETATTR_REQ;
 998
 999 typedef struct smb_com_setattr_rsp {
1000         struct smb_hdr hdr;     /* wct = 0 */
1001         __u16 ByteCount;        /* bct = 0 */
1002 } __attribute__((packed)) SETATTR_RSP;
1003
1004 /* empty wct response to setattr */
1005
1006 /***************************************************/
1007 /* NT Transact structure defintions follow         */
1008 /* Currently only ioctl and notify are implemented */
1009 /***************************************************/
1010 typedef struct smb_com_transaction_ioctl_req {
1011         struct smb_hdr hdr;     /* wct = 23 */
1012         __u8 MaxSetupCount;
1013         __u16 Reserved;
1014         __le32 TotalParameterCount;
1015         __le32 TotalDataCount;
1016         __le32 MaxParameterCount;
1017         __le32 MaxDataCount;
1018         __le32 ParameterCount;
1019         __le32 ParameterOffset;
1020         __le32 DataCount;
1021         __le32 DataOffset;
1022         __u8 SetupCount; /* four setup words follow subcommand */
1023         /* SNIA spec incorrectly included spurious pad here */
1024         __le16 SubCommand;/* 2 = IOCTL/FSCTL */
1025         __le32 FunctionCode;
1026         __u16 Fid;
1027         __u8 IsFsctl;    /* 1 = File System Control, 0 = device control (IOCTL)*/
1028         __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS share)*/
1029         __le16 ByteCount;
1030         __u8 Pad[3];
1031         __u8 Data[1];
1032 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1033
1034 typedef struct smb_com_transaction_ioctl_rsp {
1035         struct smb_hdr hdr;     /* wct = 19 */
1036         __u8 Reserved[3];
1037         __le32 TotalParameterCount;
1038         __le32 TotalDataCount;
1039         __le32 ParameterCount;
1040         __le32 ParameterOffset;
1041         __le32 ParameterDisplacement;
1042         __le32 DataCount;
1043         __le32 DataOffset;
1044         __le32 DataDisplacement;
1045         __u8 SetupCount;        /* 1 */
1046         __le16 ReturnedDataLen;
1047         __u16 ByteCount;
1048         __u8 Pad[3];
1049 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1050
1051 typedef struct smb_com_transaction_change_notify_req {
1052         struct smb_hdr hdr;     /* wct = 23 */
1053         __u8 MaxSetupCount;
1054         __u16 Reserved;
1055         __le32 TotalParameterCount;
1056         __le32 TotalDataCount;
1057         __le32 MaxParameterCount;
1058         __le32 MaxDataCount;
1059         __le32 ParameterCount;
1060         __le32 ParameterOffset;
1061         __le32 DataCount;
1062         __le32 DataOffset;
1063         __u8 SetupCount; /* four setup words follow subcommand */
1064         /* SNIA spec incorrectly included spurious pad here */
1065         __le16 SubCommand;/* 4 = Change Notify */
1066         __le32 CompletionFilter;  /* operation to monitor */
1067         __u16 Fid;
1068         __u8 WatchTree;  /* 1 = Monitor subdirectories */
1069         __u8 Reserved2;
1070         __le16 ByteCount;
1071 /* __u8 Pad[3];*/
1072 /*      __u8 Data[1];*/
1073 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1074
1075 typedef struct smb_com_transaction_change_notify_rsp {
1076         struct smb_hdr hdr;     /* wct = 18 */
1077         __u8 Reserved[3];
1078         __le32 TotalParameterCount;
1079         __le32 TotalDataCount;
1080         __le32 ParameterCount;
1081         __le32 ParameterOffset;
1082         __le32 ParameterDisplacement;
1083         __le32 DataCount;
1084         __le32 DataOffset;
1085         __le32 DataDisplacement;
1086         __u8 SetupCount;   /* 0 */
1087         __u16 ByteCount;
1088         /* __u8 Pad[3]; */
1089 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1090 /* Completion Filter flags for Notify */
1091 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1092 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1093 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1094 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1095 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1096 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1097 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1098 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1099 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1100 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1101 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1102 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1103 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1104
1105 #define FILE_ACTION_ADDED               0x00000001
1106 #define FILE_ACTION_REMOVED             0x00000002
1107 #define FILE_ACTION_MODIFIED            0x00000003
1108 #define FILE_ACTION_RENAMED_OLD_NAME    0x00000004
1109 #define FILE_ACTION_RENAMED_NEW_NAME    0x00000005
1110 #define FILE_ACTION_ADDED_STREAM        0x00000006
1111 #define FILE_ACTION_REMOVED_STREAM      0x00000007
1112 #define FILE_ACTION_MODIFIED_STREAM     0x00000008
1113
1114 /* response contains array of the following structures */
1115 struct file_notify_information {
1116         __le32 NextEntryOffset;
1117         __le32 Action;
1118         __le32 FileNameLength;
1119         __u8  FileName[0];
1120 } __attribute__((packed));
1121
1122 struct reparse_data {
1123         __u32   ReparseTag;
1124         __u16   ReparseDataLength;
1125         __u16   Reserved;
1126         __u16   AltNameOffset;
1127         __u16   AltNameLen;
1128         __u16   TargetNameOffset;
1129         __u16   TargetNameLen;
1130         char    LinkNamesBuf[1];
1131 } __attribute__((packed));
1132
1133 struct cifs_quota_data {
1134         __u32   rsrvd1;  /* 0 */
1135         __u32   sid_size;
1136         __u64   rsrvd2;  /* 0 */
1137         __u64   space_used;
1138         __u64   soft_limit;
1139         __u64   hard_limit;
1140         char    sid[1];  /* variable size? */
1141 } __attribute__((packed));
1142
1143 /* quota sub commands */
1144 #define QUOTA_LIST_CONTINUE         0
1145 #define QUOTA_LIST_START        0x100
1146 #define QUOTA_FOR_SID           0x101
1147
1148 struct trans2_req {
1149         /* struct smb_hdr hdr precedes. Set wct = 14+ */
1150         __le16 TotalParameterCount;
1151         __le16 TotalDataCount;
1152         __le16 MaxParameterCount;
1153         __le16 MaxDataCount;
1154         __u8 MaxSetupCount;
1155         __u8 Reserved;
1156         __le16 Flags;
1157         __le32 Timeout;
1158         __u16 Reserved2;
1159         __le16 ParameterCount;
1160         __le16 ParameterOffset;
1161         __le16 DataCount;
1162         __le16 DataOffset;
1163         __u8 SetupCount;
1164         __u8 Reserved3;
1165         __le16 SubCommand; /* 1st setup word - SetupCount words follow */
1166         __le16 ByteCount;
1167 } __attribute__((packed));
1168
1169 struct smb_t2_req {
1170         struct smb_hdr hdr;
1171         struct trans2_req t2_req;
1172 } __attribute__((packed));
1173
1174 struct trans2_resp {
1175         /* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1176         __le16 TotalParameterCount;
1177         __le16 TotalDataCount;
1178         __u16 Reserved;
1179         __le16 ParameterCount;
1180         __le16 ParameterOffset;
1181         __le16 ParameterDisplacement;
1182         __le16 DataCount;
1183         __le16 DataOffset;
1184         __le16 DataDisplacement;
1185         __u8 SetupCount;
1186         __u8 Reserved1;
1187         /* SetupWords[SetupCount];
1188         __u16 ByteCount;
1189         __u16 Reserved2;*/
1190         /* data area follows */
1191 } __attribute__((packed));
1192
1193 struct smb_t2_rsp {
1194         struct smb_hdr hdr;
1195         struct trans2_resp t2_rsp;
1196 } __attribute__((packed));
1197
1198 /* PathInfo/FileInfo infolevels */
1199 #define SMB_INFO_STANDARD                   1
1200 #define SMB_SET_FILE_EA                     2
1201 #define SMB_QUERY_FILE_EA_SIZE              2
1202 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1203 #define SMB_INFO_QUERY_ALL_EAS              4
1204 #define SMB_INFO_IS_NAME_VALID              6
1205 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1206 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1207 #define SMB_QUERY_FILE_EA_INFO          0x103
1208 #define SMB_QUERY_FILE_NAME_INFO        0x104
1209 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1210 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1211 #define SMB_QUERY_FILE_ALL_INFO         0x107
1212 #define SMB_QUERY_ALT_NAME_INFO         0x108
1213 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1214 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1215 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1216 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1217 #define SMB_QUERY_POSIX_ACL             0x204
1218 #define SMB_QUERY_XATTR                 0x205
1219 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1220 #define SMB_QUERY_POSIX_PERMISSION      0x207
1221 #define SMB_QUERY_POSIX_LOCK            0x208
1222 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1223 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1224 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1225 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1226 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1227 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1228
1229
1230 #define SMB_SET_FILE_BASIC_INFO         0x101
1231 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1232 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1233 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1234 #define SMB_SET_FILE_UNIX_BASIC         0x200
1235 #define SMB_SET_FILE_UNIX_LINK          0x201
1236 #define SMB_SET_FILE_UNIX_HLINK         0x203
1237 #define SMB_SET_POSIX_ACL               0x204
1238 #define SMB_SET_XATTR                   0x205
1239 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1240 #define SMB_SET_POSIX_LOCK              0x208
1241 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1242 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo level too */
1243 #define SMB_FILE_ALL_INFO2              0x3fa
1244 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1245 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1246 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1247 #define SMB_FILE_QUOTA_INFO             0x408
1248 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1249 #define SMB_FILE_MAXIMUM_INFO           0x40d
1250
1251 /* Find File infolevels */
1252 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1253 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1254 #define SMB_FIND_FILE_NAMES_INFO          0x103
1255 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1256 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1257 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1258 #define SMB_FIND_FILE_UNIX                0x202
1259
1260 typedef struct smb_com_transaction2_qpi_req {
1261         struct smb_hdr hdr;     /* wct = 14+ */
1262         __le16 TotalParameterCount;
1263         __le16 TotalDataCount;
1264         __le16 MaxParameterCount;
1265         __le16 MaxDataCount;
1266         __u8 MaxSetupCount;
1267         __u8 Reserved;
1268         __le16 Flags;
1269         __le32 Timeout;
1270         __u16 Reserved2;
1271         __le16 ParameterCount;
1272         __le16 ParameterOffset;
1273         __le16 DataCount;
1274         __le16 DataOffset;
1275         __u8 SetupCount;
1276         __u8 Reserved3;
1277         __le16 SubCommand;      /* one setup word */
1278         __le16 ByteCount;
1279         __u8 Pad;
1280         __le16 InformationLevel;
1281         __u32 Reserved4;
1282         char FileName[1];
1283 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1284
1285 typedef struct smb_com_transaction2_qpi_rsp {
1286         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1287         struct trans2_resp t2;
1288         __u16 ByteCount;
1289         __u16 Reserved2;        /* parameter word reserved - present for infolevels > 100 */
1290 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1291
1292 typedef struct smb_com_transaction2_spi_req {
1293         struct smb_hdr hdr;     /* wct = 15 */
1294         __le16 TotalParameterCount;
1295         __le16 TotalDataCount;
1296         __le16 MaxParameterCount;
1297         __le16 MaxDataCount;
1298         __u8 MaxSetupCount;
1299         __u8 Reserved;
1300         __le16 Flags;
1301         __le32 Timeout;
1302         __u16 Reserved2;
1303         __le16 ParameterCount;
1304         __le16 ParameterOffset;
1305         __le16 DataCount;
1306         __le16 DataOffset;
1307         __u8 SetupCount;
1308         __u8 Reserved3;
1309         __le16 SubCommand;      /* one setup word */
1310         __le16 ByteCount;
1311         __u8 Pad;
1312         __u16 Pad1;
1313         __le16 InformationLevel;
1314         __u32 Reserved4;
1315         char FileName[1];
1316 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1317
1318 typedef struct smb_com_transaction2_spi_rsp {
1319         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1320         struct trans2_resp t2;
1321         __u16 ByteCount;
1322         __u16 Reserved2;        /* parameter word reserved - present for infolevels > 100 */
1323 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1324
1325 struct set_file_rename {
1326         __le32 overwrite;   /* 1 = overwrite dest */
1327         __u32 root_fid;   /* zero */
1328         __le32 target_name_len;
1329         char  target_name[0];  /* Must be unicode */
1330 } __attribute__((packed));
1331
1332 struct smb_com_transaction2_sfi_req {
1333         struct smb_hdr hdr;     /* wct = 15 */
1334         __le16 TotalParameterCount;
1335         __le16 TotalDataCount;
1336         __le16 MaxParameterCount;
1337         __le16 MaxDataCount;
1338         __u8 MaxSetupCount;
1339         __u8 Reserved;
1340         __le16 Flags;
1341         __le32 Timeout;
1342         __u16 Reserved2;
1343         __le16 ParameterCount;
1344         __le16 ParameterOffset;
1345         __le16 DataCount;
1346         __le16 DataOffset;
1347         __u8 SetupCount;
1348         __u8 Reserved3;
1349         __le16 SubCommand;      /* one setup word */
1350         __le16 ByteCount;
1351         __u8 Pad;
1352         __u16 Pad1;
1353         __u16 Fid;
1354         __le16 InformationLevel;
1355         __u16 Reserved4;
1356 } __attribute__((packed));
1357
1358 struct smb_com_transaction2_sfi_rsp {
1359         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1360         struct trans2_resp t2;
1361         __u16 ByteCount;
1362         __u16 Reserved2;        /* parameter word reserved -
1363                                         present for infolevels > 100 */
1364 } __attribute__((packed));
1365
1366 struct smb_t2_qfi_req {
1367         struct  smb_hdr hdr;
1368         struct  trans2_req t2;
1369         __u8    Pad;
1370         __u16   Fid;
1371         __le16  InformationLevel;
1372 } __attribute__((packed));
1373
1374 struct smb_t2_qfi_rsp {
1375         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1376         struct trans2_resp t2;
1377         __u16 ByteCount;
1378         __u16 Reserved2;        /* parameter word reserved -
1379                                         present for infolevels > 100 */
1380 } __attribute__((packed));
1381
1382 /*
1383  * Flags on T2 FINDFIRST and FINDNEXT
1384  */
1385 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1386 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1387 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1388 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1389 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1390
1391 /*
1392  * Size of the resume key on FINDFIRST and FINDNEXT calls
1393  */
1394 #define CIFS_SMB_RESUME_KEY_SIZE 4
1395
1396 typedef struct smb_com_transaction2_ffirst_req {
1397         struct smb_hdr hdr;     /* wct = 15 */
1398         __le16 TotalParameterCount;
1399         __le16 TotalDataCount;
1400         __le16 MaxParameterCount;
1401         __le16 MaxDataCount;
1402         __u8 MaxSetupCount;
1403         __u8 Reserved;
1404         __le16 Flags;
1405         __le32 Timeout;
1406         __u16 Reserved2;
1407         __le16 ParameterCount;
1408         __le16 ParameterOffset;
1409         __le16 DataCount;
1410         __le16 DataOffset;
1411         __u8 SetupCount;        /* one */
1412         __u8 Reserved3;
1413         __le16 SubCommand;      /* TRANS2_FIND_FIRST */
1414         __le16 ByteCount;
1415         __u8 Pad;
1416         __le16 SearchAttributes;
1417         __le16 SearchCount;
1418         __le16 SearchFlags;
1419         __le16 InformationLevel;
1420         __le32 SearchStorageType;
1421         char FileName[1];
1422 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1423
1424 typedef struct smb_com_transaction2_ffirst_rsp {
1425         struct smb_hdr hdr;     /* wct = 10 */
1426         struct trans2_resp t2;
1427         __u16 ByteCount;
1428 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1429
1430 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1431         __u16 SearchHandle;
1432         __le16 SearchCount;
1433         __le16 EndofSearch;
1434         __le16 EAErrorOffset;
1435         __le16 LastNameOffset;
1436 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1437
1438 typedef struct smb_com_transaction2_fnext_req {
1439         struct smb_hdr hdr;     /* wct = 15 */
1440         __le16 TotalParameterCount;
1441         __le16 TotalDataCount;
1442         __le16 MaxParameterCount;
1443         __le16 MaxDataCount;
1444         __u8 MaxSetupCount;
1445         __u8 Reserved;
1446         __le16 Flags;
1447         __le32 Timeout;
1448         __u16 Reserved2;
1449         __le16 ParameterCount;
1450         __le16 ParameterOffset;
1451         __le16 DataCount;
1452         __le16 DataOffset;
1453         __u8 SetupCount;        /* one */
1454         __u8 Reserved3;
1455         __le16 SubCommand;      /* TRANS2_FIND_NEXT */
1456         __le16 ByteCount;
1457         __u8 Pad;
1458         __u16 SearchHandle;
1459         __le16 SearchCount;
1460         __le16 InformationLevel;
1461         __u32 ResumeKey;
1462         __le16 SearchFlags;
1463         char ResumeFileName[1];
1464 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1465
1466 typedef struct smb_com_transaction2_fnext_rsp {
1467         struct smb_hdr hdr;     /* wct = 10 */
1468         struct trans2_resp t2;
1469         __u16 ByteCount;
1470 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1471
1472 typedef struct smb_com_transaction2_fnext_rsp_parms {
1473         __le16 SearchCount;
1474         __le16 EndofSearch;
1475         __le16 EAErrorOffset;
1476         __le16 LastNameOffset;
1477 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1478
1479 /* QFSInfo Levels */
1480 #define SMB_INFO_ALLOCATION         1
1481 #define SMB_INFO_VOLUME             2
1482 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1483 #define SMB_QUERY_FS_SIZE_INFO      0x103
1484 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1485 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1486 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1487 #define SMB_QUERY_POSIX_FS_INFO     0x201
1488 #define SMB_QUERY_LABEL_INFO        0x3ea
1489 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1490 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1491 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1492
1493 typedef struct smb_com_transaction2_qfsi_req {
1494         struct smb_hdr hdr;     /* wct = 14+ */
1495         __le16 TotalParameterCount;
1496         __le16 TotalDataCount;
1497         __le16 MaxParameterCount;
1498         __le16 MaxDataCount;
1499         __u8 MaxSetupCount;
1500         __u8 Reserved;
1501         __le16 Flags;
1502         __le32 Timeout;
1503         __u16 Reserved2;
1504         __le16 ParameterCount;
1505         __le16 ParameterOffset;
1506         __le16 DataCount;
1507         __le16 DataOffset;
1508         __u8 SetupCount;
1509         __u8 Reserved3;
1510         __le16 SubCommand;      /* one setup word */
1511         __le16 ByteCount;
1512         __u8 Pad;
1513         __le16 InformationLevel;
1514 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1515
1516 typedef struct smb_com_transaction_qfsi_rsp {
1517         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1518         struct trans2_resp t2;
1519         __u16 ByteCount;
1520         __u8 Pad;               /* may be three bytes *//* followed by data area */
1521 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1522
1523
1524 /* SETFSInfo Levels */
1525 #define SMB_SET_CIFS_UNIX_INFO    0x200
1526 typedef struct smb_com_transaction2_setfsi_req {
1527         struct smb_hdr hdr;     /* wct = 15 */
1528         __le16 TotalParameterCount;
1529         __le16 TotalDataCount;
1530         __le16 MaxParameterCount;
1531         __le16 MaxDataCount;
1532         __u8 MaxSetupCount;
1533         __u8 Reserved;
1534         __le16 Flags;
1535         __le32 Timeout;
1536         __u16 Reserved2;
1537         __le16 ParameterCount;  /* 4 */
1538         __le16 ParameterOffset;
1539         __le16 DataCount;       /* 12 */
1540         __le16 DataOffset;
1541         __u8 SetupCount;        /* one */
1542         __u8 Reserved3;
1543         __le16 SubCommand;      /* TRANS2_SET_FS_INFORMATION */
1544         __le16 ByteCount;
1545         __u8 Pad;
1546         __u16 FileNum;          /* Parameters start. */
1547         __le16 InformationLevel;/* Parameters end. */
1548         __le16 ClientUnixMajor; /* Data start. */
1549         __le16 ClientUnixMinor;
1550         __le64 ClientUnixCap;   /* Data end */
1551 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
1552
1553 typedef struct smb_com_transaction2_setfsi_rsp {
1554         struct smb_hdr hdr;     /* wct = 10 */
1555         struct trans2_resp t2;
1556         __u16 ByteCount;
1557 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
1558
1559
1560 typedef struct smb_com_transaction2_get_dfs_refer_req {
1561         struct smb_hdr hdr;     /* wct = 15 */
1562         __le16 TotalParameterCount;
1563         __le16 TotalDataCount;
1564         __le16 MaxParameterCount;
1565         __le16 MaxDataCount;
1566         __u8 MaxSetupCount;
1567         __u8 Reserved;
1568         __le16 Flags;
1569         __le32 Timeout;
1570         __u16 Reserved2;
1571         __le16 ParameterCount;
1572         __le16 ParameterOffset;
1573         __le16 DataCount;
1574         __le16 DataOffset;
1575         __u8 SetupCount;
1576         __u8 Reserved3;
1577         __le16 SubCommand;      /* one setup word */
1578         __le16 ByteCount;
1579         __u8 Pad[3];            /* Win2K has sent 0x0F01 (max resp length perhaps?) followed by one byte pad - doesn't seem to matter though */
1580         __le16 MaxReferralLevel;
1581         char RequestFileName[1];
1582 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
1583
1584 typedef struct dfs_referral_level_3 {
1585         __le16 VersionNumber;
1586         __le16 ReferralSize;
1587         __le16 ServerType;      /* 0x0001 = CIFS server */
1588         __le16 ReferralFlags;   /* or proximity - not clear which since always set to zero - SNIA spec says 0x01 means strip off PathConsumed chars before submitting RequestFileName to remote node */
1589         __le16 TimeToLive;
1590         __le16 Proximity;
1591         __le16 DfsPathOffset;
1592         __le16 DfsAlternatePathOffset;
1593         __le16 NetworkAddressOffset;
1594 } __attribute__((packed)) REFERRAL3;
1595
1596 typedef struct smb_com_transaction_get_dfs_refer_rsp {
1597         struct smb_hdr hdr;     /* wct = 10 */
1598         struct trans2_resp t2;
1599         __u16 ByteCount;
1600         __u8 Pad;
1601         __le16 PathConsumed;
1602         __le16 NumberOfReferrals;
1603         __le16 DFSFlags;
1604         __u16 Pad2;
1605         REFERRAL3 referrals[1]; /* array of level 3 dfs_referral structures */
1606         /* followed by the strings pointed to by the referral structures */
1607 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_RSP;
1608
1609 /* DFS Flags */
1610 #define DFSREF_REFERRAL_SERVER  0x0001
1611 #define DFSREF_STORAGE_SERVER   0x0002
1612
1613 /* IOCTL information */
1614 /* List of ioctl function codes that look to be of interest to remote clients like this. */
1615 /* Need to do some experimentation to make sure they all work remotely.                  */
1616 /* Some of the following such as the encryption/compression ones would be                */
1617 /* invoked from tools via a specialized hook into the VFS rather than via the            */
1618 /* standard vfs entry points */
1619 #define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
1620 #define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004
1621 #define FSCTL_REQUEST_BATCH_OPLOCK   0x00090008
1622 #define FSCTL_LOCK_VOLUME            0x00090018
1623 #define FSCTL_UNLOCK_VOLUME          0x0009001C
1624 #define FSCTL_GET_COMPRESSION        0x0009003C
1625 #define FSCTL_SET_COMPRESSION        0x0009C040
1626 #define FSCTL_REQUEST_FILTER_OPLOCK  0x0009008C
1627 #define FSCTL_FILESYS_GET_STATISTICS 0x00090090
1628 #define FSCTL_SET_REPARSE_POINT      0x000900A4
1629 #define FSCTL_GET_REPARSE_POINT      0x000900A8
1630 #define FSCTL_DELETE_REPARSE_POINT   0x000900AC
1631 #define FSCTL_SET_SPARSE             0x000900C4
1632 #define FSCTL_SET_ZERO_DATA          0x000900C8
1633 #define FSCTL_SET_ENCRYPTION         0x000900D7
1634 #define FSCTL_ENCRYPTION_FSCTL_IO    0x000900DB
1635 #define FSCTL_WRITE_RAW_ENCRYPTED    0x000900DF
1636 #define FSCTL_READ_RAW_ENCRYPTED     0x000900E3
1637 #define FSCTL_SIS_COPYFILE           0x00090100
1638 #define FSCTL_SIS_LINK_FILES         0x0009C104
1639
1640 #define IO_REPARSE_TAG_MOUNT_POINT   0xA0000003
1641 #define IO_REPARSE_TAG_HSM           0xC0000004
1642 #define IO_REPARSE_TAG_SIS           0x80000007
1643
1644 /*
1645  ************************************************************************
1646  * All structs for everything above the SMB PDUs themselves
1647  * (such as the T2 level specific data) go here
1648  ************************************************************************
1649  */
1650
1651 /*
1652  * Information on a server
1653  */
1654
1655 struct serverInfo {
1656         char name[16];
1657         unsigned char versionMajor;
1658         unsigned char versionMinor;
1659         unsigned long type;
1660         unsigned int commentOffset;
1661 } __attribute__((packed));
1662
1663 /*
1664  * The following structure is the format of the data returned on a NetShareEnum
1665  * with level "90" (x5A)
1666  */
1667
1668 struct shareInfo {
1669         char shareName[13];
1670         char pad;
1671         unsigned short type;
1672         unsigned int commentOffset;
1673 } __attribute__((packed));
1674
1675 struct aliasInfo {
1676         char aliasName[9];
1677         char pad;
1678         unsigned int commentOffset;
1679         unsigned char type[2];
1680 } __attribute__((packed));
1681
1682 struct aliasInfo92 {
1683         int aliasNameOffset;
1684         int serverNameOffset;
1685         int shareNameOffset;
1686 } __attribute__((packed));
1687
1688 typedef struct {
1689         __le64 TotalAllocationUnits;
1690         __le64 FreeAllocationUnits;
1691         __le32 SectorsPerAllocationUnit;
1692         __le32 BytesPerSector;
1693 } __attribute__((packed)) FILE_SYSTEM_INFO;             /* size info, level 0x103 */
1694
1695 typedef struct {
1696         __le32 fsid;
1697         __le32 SectorsPerAllocationUnit;
1698         __le32 TotalAllocationUnits;
1699         __le32 FreeAllocationUnits;
1700         __le16  BytesPerSector;
1701 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
1702
1703 typedef struct {
1704         __le16 MajorVersionNumber;
1705         __le16 MinorVersionNumber;
1706         __le64 Capability;
1707 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO;        /* Unix extensions info, level 0x200 */
1708
1709 /* Version numbers for CIFS UNIX major and minor. */
1710 #define CIFS_UNIX_MAJOR_VERSION 1
1711 #define CIFS_UNIX_MINOR_VERSION 0
1712
1713 /* Linux/Unix extensions capability flags */
1714 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
1715 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
1716 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
1717 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
1718 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Use POSIX pathnames on the wire. */
1719
1720 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
1721
1722 typedef struct {
1723         /* For undefined recommended transfer size return -1 in that field */
1724         __le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
1725         __le32 BlockSize;
1726     /* The next three fields are in terms of the block size.
1727         (above). If block size is unknown, 4096 would be a
1728         reasonable block size for a server to report.
1729         Note that returning the blocks/blocksavail removes need
1730         to make a second call (to QFSInfo level 0x103 to get this info.
1731         UserBlockAvail is typically less than or equal to BlocksAvail,
1732         if no distinction is made return the same value in each */
1733         __le64 TotalBlocks;
1734         __le64 BlocksAvail;       /* bfree */
1735         __le64 UserBlocksAvail;   /* bavail */
1736     /* For undefined Node fields or FSID return -1 */
1737         __le64 TotalFileNodes;
1738         __le64 FreeFileNodes;
1739         __le64 FileSysIdentifier;   /* fsid */
1740         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1741         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1742 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
1743
1744 /* DeviceType Flags */
1745 #define FILE_DEVICE_CD_ROM              0x00000002
1746 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
1747 #define FILE_DEVICE_DFS                 0x00000006
1748 #define FILE_DEVICE_DISK                0x00000007
1749 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
1750 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
1751 #define FILE_DEVICE_NAMED_PIPE          0x00000011
1752 #define FILE_DEVICE_NETWORK             0x00000012
1753 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
1754 #define FILE_DEVICE_NULL                0x00000015
1755 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
1756 #define FILE_DEVICE_PRINTER             0x00000018
1757 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
1758 #define FILE_DEVICE_STREAMS             0x0000001e
1759 #define FILE_DEVICE_TAPE                0x0000001f
1760 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
1761 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
1762 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
1763
1764 typedef struct {
1765         __le32 DeviceType;
1766         __le32 DeviceCharacteristics;
1767 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO;      /* device info, level 0x104 */
1768
1769 typedef struct {
1770         __le32 Attributes;
1771         __le32 MaxPathNameComponentLength;
1772         __le32 FileSystemNameLen;
1773         char FileSystemName[52]; /* do not really need to save this - so potentially get only subset of name */
1774 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
1775
1776 /******************************************************************************/
1777 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
1778 /******************************************************************************/
1779 typedef struct { /* data block encoding of response to level 263 QPathInfo */
1780         __le64 CreationTime;
1781         __le64 LastAccessTime;
1782         __le64 LastWriteTime;
1783         __le64 ChangeTime;
1784         __le32 Attributes;
1785         __u32 Pad1;
1786         __le64 AllocationSize;
1787         __le64 EndOfFile;       /* size ie offset to first free byte in file */
1788         __le32 NumberOfLinks;   /* hard links */
1789         __u8 DeletePending;
1790         __u8 Directory;
1791         __u16 Pad2;
1792         __u64 IndexNumber;
1793         __le32 EASize;
1794         __le32 AccessFlags;
1795         __u64 IndexNumber1;
1796         __le64 CurrentByteOffset;
1797         __le32 Mode;
1798         __le32 AlignmentRequirement;
1799         __le32 FileNameLength;
1800         char FileName[1];
1801 } __attribute__((packed)) FILE_ALL_INFO;                /* level 0x107 QPathInfo */
1802
1803 /* defines for enumerating possible values of the Unix type field below */
1804 #define UNIX_FILE      0
1805 #define UNIX_DIR       1
1806 #define UNIX_SYMLINK   2
1807 #define UNIX_CHARDEV   3
1808 #define UNIX_BLOCKDEV  4
1809 #define UNIX_FIFO      5
1810 #define UNIX_SOCKET    6
1811 typedef struct {
1812         __le64 EndOfFile;
1813         __le64 NumOfBytes;
1814         __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
1815         __le64 LastAccessTime;
1816         __le64 LastModificationTime;
1817         __le64 Uid;
1818         __le64 Gid;
1819         __le32 Type;
1820         __le64 DevMajor;
1821         __le64 DevMinor;
1822         __u64 UniqueId;
1823         __le64 Permissions;
1824         __le64 Nlinks;
1825 } __attribute__((packed)) FILE_UNIX_BASIC_INFO;         /* level 0x200 QPathInfo */
1826
1827 typedef struct {
1828         char LinkDest[1];
1829 } __attribute__((packed)) FILE_UNIX_LINK_INFO;          /* level 0x201 QPathInfo */
1830
1831 /* The following three structures are needed only for
1832         setting time to NT4 and some older servers via
1833         the primitive DOS time format */
1834 typedef struct {
1835         __u16 Day:5;
1836         __u16 Month:4;
1837         __u16 Year:7;
1838 } __attribute__((packed)) SMB_DATE;
1839
1840 typedef struct {
1841         __u16 TwoSeconds:5;
1842         __u16 Minutes:6;
1843         __u16 Hours:5;
1844 } __attribute__((packed)) SMB_TIME;
1845
1846 typedef struct {
1847         __le16 CreationDate; /* SMB Date see above */
1848         __le16 CreationTime; /* SMB Time */
1849         __le16 LastAccessDate;
1850         __le16 LastAccessTime;
1851         __le16 LastWriteDate;
1852         __le16 LastWriteTime;
1853         __le32 DataSize; /* File Size (EOF) */
1854         __le32 AllocationSize;
1855         __le16 Attributes; /* verify not u32 */
1856         __le32 EASize;
1857 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
1858
1859 typedef struct {
1860         __le64 CreationTime;
1861         __le64 LastAccessTime;
1862         __le64 LastWriteTime;
1863         __le64 ChangeTime;
1864         __le32 Attributes;
1865         __u32 Pad;
1866 } __attribute__((packed)) FILE_BASIC_INFO;              /* size info, level 0x101 */
1867
1868 struct file_allocation_info {
1869         __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
1870 } __attribute__((packed));      /* size used on disk, level 0x103 for set, 0x105 for query */
1871
1872 struct file_end_of_file_info {
1873         __le64 FileSize;                /* offset to end of file */
1874 } __attribute__((packed));      /* size info, level 0x104 for set, 0x106 for query */
1875
1876 struct file_alt_name_info {
1877         __u8   alt_name[1];
1878 } __attribute__((packed));      /* level 0x0108 */
1879
1880 struct file_stream_info {
1881         __le32 number_of_streams;  /* BB check sizes and verify location */
1882         /* followed by info on streams themselves
1883                 u64 size;
1884                 u64 allocation_size
1885                 stream info */
1886 };      /* level 0x109 */
1887
1888 struct file_compression_info {
1889         __le64 compressed_size;
1890         __le16 format;
1891         __u8   unit_shift;
1892         __u8   ch_shift;
1893         __u8   cl_shift;
1894         __u8   pad[3];
1895 } __attribute__((packed));      /* level 0x10b */
1896
1897 /* POSIX ACL set/query path info structures */
1898 #define CIFS_ACL_VERSION 1
1899 struct cifs_posix_ace { /* access control entry (ACE) */
1900         __u8  cifs_e_tag;
1901         __u8  cifs_e_perm;
1902         __le64 cifs_uid; /* or gid */
1903 } __attribute__((packed));
1904
1905 struct cifs_posix_acl { /* access conrol list  (ACL) */
1906         __le16  version;
1907         __le16  access_entry_count;  /* access ACL - count of entries */
1908         __le16  default_entry_count; /* default ACL - count of entries */
1909         struct cifs_posix_ace ace_array[0];
1910         /* followed by
1911         struct cifs_posix_ace default_ace_arraay[] */
1912 } __attribute__((packed));  /* level 0x204 */
1913
1914 /* types of access control entries already defined in posix_acl.h */
1915 /* #define CIFS_POSIX_ACL_USER_OBJ       0x01
1916 #define CIFS_POSIX_ACL_USER      0x02
1917 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
1918 #define CIFS_POSIX_ACL_GROUP     0x08
1919 #define CIFS_POSIX_ACL_MASK      0x10
1920 #define CIFS_POSIX_ACL_OTHER     0x20 */
1921
1922 /* types of perms */
1923 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
1924 #define CIFS_POSIX_ACL_WRITE     0x02
1925 #define CIFS_POSIX_ACL_READ          0x04 */
1926
1927 /* end of POSIX ACL definitions */
1928
1929 struct file_internal_info {
1930         __u64  UniqueId; /* inode number */
1931 } __attribute__((packed));      /* level 0x3ee */
1932 struct file_mode_info {
1933         __le32  Mode;
1934 } __attribute__((packed));      /* level 0x3f8 */
1935
1936 struct file_attrib_tag {
1937         __le32 Attribute;
1938         __le32 ReparseTag;
1939 } __attribute__((packed));      /* level 0x40b */
1940
1941
1942 /********************************************************/
1943 /*  FindFirst/FindNext transact2 data buffer formats    */
1944 /********************************************************/
1945
1946 typedef struct {
1947         __le32 NextEntryOffset;
1948         __u32 ResumeKey; /* as with FileIndex - no need to convert */
1949         __le64 EndOfFile;
1950         __le64 NumOfBytes;
1951         __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
1952         __le64 LastAccessTime;
1953         __le64 LastModificationTime;
1954         __le64 Uid;
1955         __le64 Gid;
1956         __le32 Type;
1957         __le64 DevMajor;
1958         __le64 DevMinor;
1959         __u64 UniqueId;
1960         __le64 Permissions;
1961         __le64 Nlinks;
1962         char FileName[1];
1963 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
1964
1965 typedef struct {
1966         __le32 NextEntryOffset;
1967         __u32 FileIndex;
1968         __le64 CreationTime;
1969         __le64 LastAccessTime;
1970         __le64 LastWriteTime;
1971         __le64 ChangeTime;
1972         __le64 EndOfFile;
1973         __le64 AllocationSize;
1974         __le32 ExtFileAttributes;
1975         __le32 FileNameLength;
1976         char FileName[1];
1977 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF response data area */
1978
1979 typedef struct {
1980         __le32 NextEntryOffset;
1981         __u32 FileIndex;
1982         __le64 CreationTime;
1983         __le64 LastAccessTime;
1984         __le64 LastWriteTime;
1985         __le64 ChangeTime;
1986         __le64 EndOfFile;
1987         __le64 AllocationSize;
1988         __le32 ExtFileAttributes;
1989         __le32 FileNameLength;
1990         __le32 EaSize; /* length of the xattrs */
1991         char FileName[1];
1992 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO;   /* level 0x102 FF response data area */
1993
1994 typedef struct {
1995         __le32 NextEntryOffset;
1996         __u32 FileIndex;
1997         __le64 CreationTime;
1998         __le64 LastAccessTime;
1999         __le64 LastWriteTime;
2000         __le64 ChangeTime;
2001         __le64 EndOfFile;
2002         __le64 AllocationSize;
2003         __le32 ExtFileAttributes;
2004         __le32 FileNameLength;
2005         __le32 EaSize; /* EA size */
2006         __le32 Reserved;
2007         __u64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2008         char FileName[1];
2009 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO;   /* level 0x105 FF response data area */
2010
2011 typedef struct {
2012         __le32 NextEntryOffset;
2013         __u32 FileIndex;
2014         __le64 CreationTime;
2015         __le64 LastAccessTime;
2016         __le64 LastWriteTime;
2017         __le64 ChangeTime;
2018         __le64 EndOfFile;
2019         __le64 AllocationSize;
2020         __le32 ExtFileAttributes;
2021         __le32 FileNameLength;
2022         __le32 EaSize; /* length of the xattrs */
2023         __u8   ShortNameLength;
2024         __u8   Reserved;
2025         __u8   ShortName[12];
2026         char FileName[1];
2027 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO;   /* level 0x104 FF response data area */
2028
2029
2030 struct win_dev {
2031         unsigned char type[8]; /* IntxCHR or IntxBLK */
2032         __le64 major;
2033         __le64 minor;
2034 } __attribute__((packed));
2035
2036 struct gea {
2037         unsigned char name_len;
2038         char name[1];
2039 } __attribute__((packed));
2040
2041 struct gealist {
2042         unsigned long list_len;
2043         struct gea list[1];
2044 } __attribute__((packed));
2045
2046 struct fea {
2047         unsigned char EA_flags;
2048         __u8 name_len;
2049         __le16 value_len;
2050         char name[1];
2051         /* optionally followed by value */
2052 } __attribute__((packed));
2053 /* flags for _FEA.fEA */
2054 #define FEA_NEEDEA         0x80 /* need EA bit */
2055
2056 struct fealist {
2057         __le32 list_len;
2058         struct fea list[1];
2059 } __attribute__((packed));
2060
2061 /* used to hold an arbitrary blob of data */
2062 struct data_blob {
2063         __u8 *data;
2064         size_t length;
2065         void (*free) (struct data_blob * data_blob);
2066 } __attribute__((packed));
2067
2068
2069 #ifdef CONFIG_CIFS_POSIX
2070 /*
2071         For better POSIX semantics from Linux client, (even better
2072         than the existing CIFS Unix Extensions) we need updated PDUs for:
2073
2074         1) PosixCreateX - to set and return the mode, inode#, device info and
2075         perhaps add a CreateDevice - to create Pipes and other special .inodes
2076         Also note POSIX open flags
2077         2) Close - to return the last write time to do cache across close more safely
2078         3) FindFirst return unique inode number - what about resume key, two
2079         forms short (matches readdir) and full (enough info to cache inodes)
2080         4) Mkdir - set mode
2081
2082         And under consideration:
2083         5) FindClose2 (return nanosecond timestamp ??)
2084         6) Use nanosecond timestamps throughout all time fields if
2085            corresponding attribute flag is set
2086         7) sendfile - handle based copy
2087         8) Direct i/o
2088         9) Misc fcntls?
2089
2090         what about fixing 64 bit alignment
2091
2092         There are also various legacy SMB/CIFS requests used as is
2093
2094         From existing Lanman and NTLM dialects:
2095         --------------------------------------
2096         NEGOTIATE
2097         SESSION_SETUP_ANDX (BB which?)
2098         TREE_CONNECT_ANDX (BB which wct?)
2099         TREE_DISCONNECT (BB add volume timestamp on response)
2100         LOGOFF_ANDX
2101         DELETE (note delete open file behavior)
2102         DELETE_DIRECTORY
2103         READ_AND_X
2104         WRITE_AND_X
2105         LOCKING_AND_X (note posix lock semantics)
2106         RENAME (note rename across dirs and open file rename posix behaviors)
2107         NT_RENAME (for hardlinks) Is this good enough for all features?
2108         FIND_CLOSE2
2109         TRANSACTION2 (18 cases)
2110                 SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2111                 (BB verify that never need to set allocation size)
2112                 SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via Unix ext?)
2113
2114         COPY (note support for copy across directories) - FUTURE, OPTIONAL
2115         setting/getting OS/2 EAs - FUTURE (BB can this handle
2116         setting Linux xattrs perfectly)         - OPTIONAL
2117         dnotify                                 - FUTURE, OPTIONAL
2118         quota                                   - FUTURE, OPTIONAL
2119
2120         Note that various requests implemented for NT interop such as
2121                 NT_TRANSACT (IOCTL) QueryReparseInfo
2122         are unneeded to servers compliant with the CIFS POSIX extensions
2123
2124         From CIFS Unix Extensions:
2125         -------------------------
2126         T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2127         T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2128         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2129         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) - BB check for missing inode fields
2130                                         Actually need QUERY_FILE_UNIX_INFO since has inode num
2131                                         BB what about a) blksize/blkbits/blocks
2132                                                                   b) i_version
2133                                                                   c) i_rdev
2134                                                                   d) notify mask?
2135                                                                   e) generation
2136                                                                   f) size_seqcount
2137         T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2138         TRANS2_GET_DFS_REFERRAL                           - OPTIONAL but recommended
2139         T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2140
2141
2142  */
2143
2144 /* xsymlink is a symlink format (used by MacOS) that can be used
2145    to save symlink info in a regular file when
2146    mounted to operating systems that do not
2147    support the cifs Unix extensions or EAs (for xattr
2148    based symlinks).  For such a file to be recognized
2149    as containing symlink data:
2150
2151    1) file size must be 1067,
2152    2) signature must begin file data,
2153    3) length field must be set to ASCII representation
2154         of a number which is less than or equal to 1024,
2155    4) md5 must match that of the path data */
2156
2157 struct xsymlink {
2158         /* 1067 bytes */
2159         char signature[4]; /* XSym */ /* not null terminated */
2160         char cr0;         /* \n */
2161 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2162         char length[4];
2163         char cr1;         /* \n */
2164 /* md5 of valid subset of path ie path[0] through path[length-1] */
2165         __u8 md5[32];
2166         char cr2;        /* \n */
2167 /* if room left, then end with \n then 0x20s by convention but not required */
2168         char path[1024];
2169 } __attribute__((packed));
2170
2171 typedef struct file_xattr_info {
2172         /* BB do we need another field for flags? BB */
2173         __u32 xattr_name_len;
2174         __u32 xattr_value_len;
2175         char  xattr_name[0];
2176         /* followed by xattr_value[xattr_value_len], no pad */
2177 } __attribute__((packed)) FILE_XATTR_INFO;      /* extended attribute, info level 0x205 */
2178
2179
2180 /* flags for chattr command */
2181 #define EXT_SECURE_DELETE               0x00000001 /* EXT3_SECRM_FL */
2182 #define EXT_ENABLE_UNDELETE             0x00000002 /* EXT3_UNRM_FL */
2183 /* Reserved for compress file 0x4 */
2184 #define EXT_SYNCHRONOUS                 0x00000008 /* EXT3_SYNC_FL */
2185 #define EXT_IMMUTABLE_FL                0x00000010 /* EXT3_IMMUTABLE_FL */
2186 #define EXT_OPEN_APPEND_ONLY            0x00000020 /* EXT3_APPEND_FL */
2187 #define EXT_DO_NOT_BACKUP               0x00000040 /* EXT3_NODUMP_FL */
2188 #define EXT_NO_UPDATE_ATIME             0x00000080 /* EXT3_NOATIME_FL */
2189 /* 0x100 through 0x800 reserved for compression flags and are GET-ONLY */
2190 #define EXT_HASH_TREE_INDEXED_DIR       0x00001000 /* GET-ONLY EXT3_INDEX_FL */
2191 /* 0x2000 reserved for IMAGIC_FL */
2192 #define EXT_JOURNAL_THIS_FILE   0x00004000 /* GET-ONLY EXT3_JOURNAL_DATA_FL */
2193 /* 0x8000 reserved for EXT3_NOTAIL_FL */
2194 #define EXT_SYNCHRONOUS_DIR             0x00010000 /* EXT3_DIRSYNC_FL */
2195 #define EXT_TOPDIR                      0x00020000 /* EXT3_TOPDIR_FL */
2196
2197 #define EXT_SET_MASK                    0x000300FF
2198 #define EXT_GET_MASK                    0x0003DFFF
2199
2200 typedef struct file_chattr_info {
2201         __le64  mask; /* list of all possible attribute bits */
2202         __le64  mode; /* list of actual attribute bits on this inode */
2203 } __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes (chattr, chflags) level 0x206 */
2204
2205 #endif
2206
2207 #endif                          /* _CIFSPDU_H */