fs/smb/client/cifspdu.h

   1 /* SPDX-License-Identifier: LGPL-2.1 */
   2 /*
   3  *
   4  *   Copyright (c) International Business Machines  Corp., 2002,2009
   5  *   Author(s): Steve French (sfrench@us.ibm.com)
   6  *
   7  */
   8
   9 #ifndef _CIFSPDU_H
  10 #define _CIFSPDU_H
  11
  12 #include <net/sock.h>
  13 #include <linux/unaligned.h>
  14 #include "../common/smbfsctl.h"
  15
  16 #define CIFS_PROT   0
  17 #define POSIX_PROT  (CIFS_PROT+1)
  18 #define BAD_PROT 0xFFFF
  19
  20 /* SMB command codes:
  21  * Note some commands have minimal (wct=0,bcc=0), or uninteresting, responses
  22  * (ie which include no useful data other than the SMB error code itself).
  23  * This can allow us to avoid response buffer allocations and copy in some cases
  24  */
  25 #define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
  26 #define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
  27 #define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
  28 #define SMB_COM_FLUSH                 0x05 /* triv req/rsp */
  29 #define SMB_COM_DELETE                0x06 /* trivial response */
  30 #define SMB_COM_RENAME                0x07 /* trivial response */
  31 #define SMB_COM_QUERY_INFORMATION     0x08 /* aka getattr */
  32 #define SMB_COM_SETATTR               0x09 /* trivial response */
  33 #define SMB_COM_LOCKING_ANDX          0x24 /* trivial response */
  34 #define SMB_COM_COPY                  0x29 /* trivial rsp, fail filename ignrd*/
  35 #define SMB_COM_ECHO                  0x2B /* echo request */
  36 #define SMB_COM_OPEN_ANDX             0x2D /* Legacy open for old servers */
  37 #define SMB_COM_READ_ANDX             0x2E
  38 #define SMB_COM_WRITE_ANDX            0x2F
  39 #define SMB_COM_TRANSACTION2          0x32
  40 #define SMB_COM_TRANSACTION2_SECONDARY 0x33
  41 #define SMB_COM_FIND_CLOSE2           0x34 /* trivial response */
  42 #define SMB_COM_TREE_DISCONNECT       0x71 /* trivial response */
  43 #define SMB_COM_NEGOTIATE             0x72
  44 #define SMB_COM_SESSION_SETUP_ANDX    0x73
  45 #define SMB_COM_LOGOFF_ANDX           0x74 /* trivial response */
  46 #define SMB_COM_TREE_CONNECT_ANDX     0x75
  47 #define SMB_COM_NT_TRANSACT           0xA0
  48 #define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
  49 #define SMB_COM_NT_CREATE_ANDX        0xA2
  50 #define SMB_COM_NT_CANCEL             0xA4 /* no response */
  51 #define SMB_COM_NT_RENAME             0xA5 /* trivial response */
  52
  53 /* Transact2 subcommand codes */
  54 #define TRANS2_OPEN                   0x00
  55 #define TRANS2_FIND_FIRST             0x01
  56 #define TRANS2_FIND_NEXT              0x02
  57 #define TRANS2_QUERY_FS_INFORMATION   0x03
  58 #define TRANS2_SET_FS_INFORMATION     0x04
  59 #define TRANS2_QUERY_PATH_INFORMATION 0x05
  60 #define TRANS2_SET_PATH_INFORMATION   0x06
  61 #define TRANS2_QUERY_FILE_INFORMATION 0x07
  62 #define TRANS2_SET_FILE_INFORMATION   0x08
  63 #define TRANS2_GET_DFS_REFERRAL       0x10
  64 #define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
  65
  66 /* SMB Transact (Named Pipe) subcommand codes */
  67 #define TRANS_SET_NMPIPE_STATE      0x0001
  68 #define TRANS_RAW_READ_NMPIPE       0x0011
  69 #define TRANS_QUERY_NMPIPE_STATE    0x0021
  70 #define TRANS_QUERY_NMPIPE_INFO     0x0022
  71 #define TRANS_PEEK_NMPIPE           0x0023
  72 #define TRANS_TRANSACT_NMPIPE       0x0026
  73 #define TRANS_RAW_WRITE_NMPIPE      0x0031
  74 #define TRANS_READ_NMPIPE           0x0036
  75 #define TRANS_WRITE_NMPIPE          0x0037
  76 #define TRANS_WAIT_NMPIPE           0x0053
  77 #define TRANS_CALL_NMPIPE           0x0054
  78
  79 /* NT Transact subcommand codes */
  80 #define NT_TRANSACT_CREATE            0x01
  81 #define NT_TRANSACT_IOCTL             0x02
  82 #define NT_TRANSACT_SET_SECURITY_DESC 0x03
  83 #define NT_TRANSACT_NOTIFY_CHANGE     0x04
  84 #define NT_TRANSACT_RENAME            0x05
  85 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
  86 #define NT_TRANSACT_GET_USER_QUOTA    0x07
  87 #define NT_TRANSACT_SET_USER_QUOTA    0x08
  88
  89 #define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
  90 /* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */
  91 /* among the requests (NTCreateX response is bigger with wct of 34) */
  92 #define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */
  93 #define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */
  94
  95 /* internal cifs vfs structures */
  96 /*****************************************************************
  97  * All constants go here
  98  *****************************************************************
  99  */
 100
 101 /*
 102  * Starting value for maximum SMB size negotiation
 103  */
 104 #define CIFS_MAX_MSGSIZE (4*4096)
 105
 106 /*
 107  * Size of encrypted user password in bytes
 108  */
 109 #define CIFS_ENCPWD_SIZE (16)
 110
 111 /*
 112  * Size of the crypto key returned on the negotiate SMB in bytes
 113  */
 114 #define CIFS_CRYPTO_KEY_SIZE (8)
 115
 116 /*
 117  * Size of the ntlm client response
 118  */
 119 #define CIFS_AUTH_RESP_SIZE (24)
 120
 121 /*
 122  * Size of the session key (crypto key encrypted with the password
 123  */
 124 #define CIFS_SESS_KEY_SIZE (16)
 125
 126 #define CIFS_SERVER_CHALLENGE_SIZE (8)
 127 #define CIFS_HMAC_MD5_HASH_SIZE (16)
 128 #define CIFS_CPHTXT_SIZE (16)
 129 #define CIFS_NTHASH_SIZE (16)
 130
 131 /*
 132  * Maximum user name length
 133  */
 134 #define CIFS_UNLEN (20)
 135
 136 /*
 137  * Flags on SMB open
 138  */
 139 #define SMBOPEN_WRITE_THROUGH 0x4000
 140 #define SMBOPEN_DENY_ALL      0x0010
 141 #define SMBOPEN_DENY_WRITE    0x0020
 142 #define SMBOPEN_DENY_READ     0x0030
 143 #define SMBOPEN_DENY_NONE     0x0040
 144 #define SMBOPEN_READ          0x0000
 145 #define SMBOPEN_WRITE         0x0001
 146 #define SMBOPEN_READWRITE     0x0002
 147 #define SMBOPEN_EXECUTE       0x0003
 148
 149 #define SMBOPEN_OCREATE       0x0010
 150 #define SMBOPEN_OTRUNC        0x0002
 151 #define SMBOPEN_OAPPEND       0x0001
 152
 153 /*
 154  * SMB flag definitions
 155  */
 156 #define SMBFLG_EXTD_LOCK 0x01   /* server supports lock-read write-unlock smb */
 157 #define SMBFLG_RCV_POSTED 0x02  /* obsolete */
 158 #define SMBFLG_RSVD 0x04
 159 #define SMBFLG_CASELESS 0x08    /* all pathnames treated as caseless (off
 160                                 implies case sensitive file handling request) */
 161 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10       /* obsolete */
 162 #define SMBFLG_OLD_OPLOCK 0x20  /* obsolete */
 163 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40   /* obsolete */
 164 #define SMBFLG_RESPONSE 0x80    /* this PDU is a response from server */
 165
 166 /*
 167  * SMB flag2 definitions
 168  */
 169 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3)
 170                                                    path names in response */
 171 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
 172 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
 173 #define SMBFLG2_COMPRESSED (8)
 174 #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
 175 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
 176 #define SMBFLG2_REPARSE_PATH (0x400)
 177 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
 178 #define SMBFLG2_DFS cpu_to_le16(0x1000)
 179 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
 180 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
 181 #define SMBFLG2_UNICODE cpu_to_le16(0x8000)
 182
 183 /*
 184  * These are the file access permission bits defined in CIFS for the
 185  * NTCreateAndX as well as the level 0x107
 186  * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
 187  * responds with the AccessFlags.
 188  * The AccessFlags specifies the access permissions a caller has to the
 189  * file and can have any suitable combination of the following values:
 190  */
 191
 192 #define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
 193 #define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
 194 #define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
 195 #define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
 196                                           /* with the file can be read        */
 197 #define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
 198                                           /* with the file can be written     */
 199 #define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
 200                                           /* the file using system paging I/O */
 201 #define FILE_DELETE_CHILD     0x00000040
 202 #define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
 203                                           /* file can be read                 */
 204 #define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
 205                                           /* file can be written              */
 206 #define DELETE                0x00010000  /* The file can be deleted          */
 207 #define READ_CONTROL          0x00020000  /* The access control list and      */
 208                                           /* ownership associated with the    */
 209                                           /* file can be read                 */
 210 #define WRITE_DAC             0x00040000  /* The access control list and      */
 211                                           /* ownership associated with the    */
 212                                           /* file can be written.             */
 213 #define WRITE_OWNER           0x00080000  /* Ownership information associated */
 214                                           /* with the file can be written     */
 215 #define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
 216                                           /* synchronize with the completion  */
 217                                           /* of an input/output request       */
 218 #define SYSTEM_SECURITY       0x01000000  /* The system access control list   */
 219                                           /* can be read and changed          */
 220 #define GENERIC_ALL           0x10000000
 221 #define GENERIC_EXECUTE       0x20000000
 222 #define GENERIC_WRITE         0x40000000
 223 #define GENERIC_READ          0x80000000
 224                                          /* In summary - Relevant file       */
 225                                          /* access flags from CIFS are       */
 226                                          /* file_read_data, file_write_data  */
 227                                          /* file_execute, file_read_attributes*/
 228                                          /* write_dac, and delete.           */
 229
 230 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
 231 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
 232                                 | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
 233 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
 234
 235 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
 236                                 | FILE_READ_ATTRIBUTES \
 237                                 | FILE_WRITE_ATTRIBUTES \
 238                                 | DELETE | READ_CONTROL | WRITE_DAC \
 239                                 | WRITE_OWNER | SYNCHRONIZE)
 240 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
 241                                 | FILE_READ_EA | FILE_WRITE_EA \
 242                                 | FILE_READ_ATTRIBUTES \
 243                                 | FILE_WRITE_ATTRIBUTES \
 244                                 | DELETE | READ_CONTROL | WRITE_DAC \
 245                                 | WRITE_OWNER | SYNCHRONIZE)
 246 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
 247                                 | FILE_READ_ATTRIBUTES \
 248                                 | FILE_WRITE_ATTRIBUTES \
 249                                 | DELETE | READ_CONTROL | WRITE_DAC \
 250                                 | WRITE_OWNER | SYNCHRONIZE)
 251
 252 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
 253                                 | READ_CONTROL | SYNCHRONIZE)
 254
 255
 256 /*
 257  * Invalid readdir handle
 258  */
 259 #define CIFS_NO_HANDLE        0xFFFF
 260
 261 #define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
 262
 263 /* IPC$ in ASCII */
 264 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
 265
 266 /* IPC$ in Unicode */
 267 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
 268
 269 /* Unicode Null terminate 2 bytes of 0 */
 270 #define UNICODE_NULL "\x00\x00"
 271 #define ASCII_NULL 0x00
 272
 273 /*
 274  * Server type values (returned on EnumServer API
 275  */
 276 #define CIFS_SV_TYPE_DC     0x00000008
 277 #define CIFS_SV_TYPE_BACKDC 0x00000010
 278
 279 /*
 280  * Alias type flags (From EnumAlias API call
 281  */
 282 #define CIFS_ALIAS_TYPE_FILE 0x0001
 283 #define CIFS_SHARE_TYPE_FILE 0x0000
 284
 285 /*
 286  * File Attribute flags
 287  */
 288 #define ATTR_READONLY  0x0001
 289 #define ATTR_HIDDEN    0x0002
 290 #define ATTR_SYSTEM    0x0004
 291 #define ATTR_VOLUME    0x0008
 292 #define ATTR_DIRECTORY 0x0010
 293 #define ATTR_ARCHIVE   0x0020
 294 #define ATTR_DEVICE    0x0040
 295 #define ATTR_NORMAL    0x0080
 296 #define ATTR_TEMPORARY 0x0100
 297 #define ATTR_SPARSE    0x0200
 298 #define ATTR_REPARSE   0x0400
 299 #define ATTR_COMPRESSED 0x0800
 300 #define ATTR_OFFLINE    0x1000  /* ie file not immediately available -
 301                                         on offline storage */
 302 #define ATTR_NOT_CONTENT_INDEXED 0x2000
 303 #define ATTR_ENCRYPTED  0x4000
 304 #define ATTR_POSIX_SEMANTICS 0x01000000
 305 #define ATTR_BACKUP_SEMANTICS 0x02000000
 306 #define ATTR_DELETE_ON_CLOSE 0x04000000
 307 #define ATTR_SEQUENTIAL_SCAN 0x08000000
 308 #define ATTR_RANDOM_ACCESS   0x10000000
 309 #define ATTR_NO_BUFFERING    0x20000000
 310 #define ATTR_WRITE_THROUGH   0x80000000
 311
 312 /* ShareAccess flags */
 313 #define FILE_NO_SHARE     0x00000000
 314 #define FILE_SHARE_READ   0x00000001
 315 #define FILE_SHARE_WRITE  0x00000002
 316 #define FILE_SHARE_DELETE 0x00000004
 317 #define FILE_SHARE_ALL    0x00000007
 318
 319 /* CreateDisposition flags, similar to CreateAction as well */
 320 #define FILE_SUPERSEDE    0x00000000
 321 #define FILE_OPEN         0x00000001
 322 #define FILE_CREATE       0x00000002
 323 #define FILE_OPEN_IF      0x00000003
 324 #define FILE_OVERWRITE    0x00000004
 325 #define FILE_OVERWRITE_IF 0x00000005
 326
 327 /* CreateOptions */
 328 #define CREATE_NOT_FILE         0x00000001      /* if set must not be file */
 329 #define CREATE_WRITE_THROUGH    0x00000002
 330 #define CREATE_SEQUENTIAL       0x00000004
 331 #define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
 332 #define CREATE_SYNC_ALERT       0x00000010      /* MBZ */
 333 #define CREATE_ASYNC_ALERT      0x00000020      /* MBZ */
 334 #define CREATE_NOT_DIR          0x00000040    /* if set must not be directory */
 335 #define CREATE_TREE_CONNECTION  0x00000080      /* should be zero */
 336 #define CREATE_COMPLETE_IF_OPLK 0x00000100      /* should be zero */
 337 #define CREATE_NO_EA_KNOWLEDGE  0x00000200
 338 #define CREATE_EIGHT_DOT_THREE  0x00000400      /* doc says this is obsolete
 339                                                  "open for recovery" flag should
 340                                                  be zero in any case */
 341 #define CREATE_OPEN_FOR_RECOVERY 0x00000400
 342 #define CREATE_RANDOM_ACCESS    0x00000800
 343 #define CREATE_DELETE_ON_CLOSE  0x00001000
 344 #define CREATE_OPEN_BY_ID       0x00002000
 345 #define CREATE_OPEN_BACKUP_INTENT 0x00004000
 346 #define CREATE_NO_COMPRESSION   0x00008000
 347 #define CREATE_RESERVE_OPFILTER 0x00100000      /* should be zero */
 348 #define OPEN_REPARSE_POINT      0x00200000
 349 #define OPEN_NO_RECALL          0x00400000
 350 #define OPEN_FREE_SPACE_QUERY   0x00800000      /* should be zero */
 351 #define CREATE_OPTIONS_MASK     0x007FFFFF
 352 #define CREATE_OPTION_READONLY  0x10000000
 353 #define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
 354
 355 /* ImpersonationLevel flags */
 356 #define SECURITY_ANONYMOUS      0
 357 #define SECURITY_IDENTIFICATION 1
 358 #define SECURITY_IMPERSONATION  2
 359 #define SECURITY_DELEGATION     3
 360
 361 /* SecurityFlags */
 362 #define SECURITY_CONTEXT_TRACKING 0x01
 363 #define SECURITY_EFFECTIVE_ONLY   0x02
 364
 365 /*
 366  * Default PID value, used in all SMBs where the PID is not important
 367  */
 368 #define CIFS_DFT_PID  0x1234
 369
 370 /*
 371  * We use the same routine for Copy and Move SMBs.  This flag is used to
 372  * distinguish
 373  */
 374 #define CIFS_COPY_OP 1
 375 #define CIFS_RENAME_OP 2
 376
 377 #define GETU16(var)  (*((__u16 *)var))  /* BB check for endian issues */
 378 #define GETU32(var)  (*((__u32 *)var))  /* BB check for endian issues */
 379
 380 struct smb_hdr {
 381         __be32 smb_buf_length;  /* BB length is only two (rarely three) bytes,
 382                 with one or two byte "type" preceding it that will be
 383                 zero - we could mask the type byte off */
 384         __u8 Protocol[4];
 385         __u8 Command;
 386         union {
 387                 struct {
 388                         __u8 ErrorClass;
 389                         __u8 Reserved;
 390                         __le16 Error;
 391                 } __attribute__((packed)) DosError;
 392                 __le32 CifsError;
 393         } __attribute__((packed)) Status;
 394         __u8 Flags;
 395         __le16 Flags2;          /* note: le */
 396         __le16 PidHigh;
 397         union {
 398                 struct {
 399                         __le32 SequenceNumber;  /* le */
 400                         __u32 Reserved; /* zero */
 401                 } __attribute__((packed)) Sequence;
 402                 __u8 SecuritySignature[8];      /* le */
 403         } __attribute__((packed)) Signature;
 404         __u8 pad[2];
 405         __u16 Tid;
 406         __le16 Pid;
 407         __u16 Uid;
 408         __le16 Mid;
 409         __u8 WordCount;
 410 } __attribute__((packed));
 411
 412 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
 413 static inline void *
 414 BCC(struct smb_hdr *smb)
 415 {
 416         return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
 417 }
 418
 419 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */
 420 #define pByteArea(smb_var) (BCC(smb_var) + 2)
 421
 422 /* get the unconverted ByteCount for a SMB packet and return it */
 423 static inline __u16
 424 get_bcc(struct smb_hdr *hdr)
 425 {
 426         __le16 *bc_ptr = (__le16 *)BCC(hdr);
 427
 428         return get_unaligned_le16(bc_ptr);
 429 }
 430
 431 /* set the ByteCount for a SMB packet in little-endian */
 432 static inline void
 433 put_bcc(__u16 count, struct smb_hdr *hdr)
 434 {
 435         __le16 *bc_ptr = (__le16 *)BCC(hdr);
 436
 437         put_unaligned_le16(count, bc_ptr);
 438 }
 439
 440 /*
 441  * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
 442  * No longer as important, now that TCP names are more commonly used to
 443  * resolve hosts.
 444  */
 445 #define CNLEN 15
 446
 447 /*
 448  * Share Name Length (SNLEN)
 449  * Note:  This length was limited by the SMB used to get
 450  *        the Share info.   NetShareEnum only returned 13
 451  *        chars, including the null termination.
 452  * This was removed because it no longer is limiting.
 453  */
 454
 455 /*
 456  * Comment Length
 457  */
 458 #define MAXCOMMENTLEN 40
 459
 460 /*
 461  * The OS/2 maximum path name
 462  */
 463 #define MAX_PATHCONF 256
 464
 465 /*
 466  *  SMB frame definitions  (following must be packed structs)
 467  *  See the SNIA CIFS Specification for details.
 468  *
 469  *  The Naming convention is the lower case version of the
 470  *  smb command code name for the struct and this is typedef to the
 471  *  uppercase version of the same name with the prefix SMB_ removed
 472  *  for brevity.  Although typedefs are not commonly used for
 473  *  structure definitions in the Linux kernel, their use in the
 474  *  CIFS standards document, which this code is based on, may
 475  *  make this one of the cases where typedefs for structures make
 476  *  sense to improve readability for readers of the standards doc.
 477  *  Typedefs can always be removed later if they are too distracting
 478  *  and they are only used for the CIFSs PDUs themselves, not
 479  *  internal cifs vfs structures
 480  *
 481  */
 482
 483 typedef struct negotiate_req {
 484         struct smb_hdr hdr;     /* wct = 0 */
 485         __le16 ByteCount;
 486         unsigned char DialectsArray[];
 487 } __attribute__((packed)) NEGOTIATE_REQ;
 488
 489 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
 490
 491 #define READ_RAW_ENABLE 1
 492 #define WRITE_RAW_ENABLE 2
 493 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
 494 #define SMB1_CLIENT_GUID_SIZE (16)
 495 typedef struct negotiate_rsp {
 496         struct smb_hdr hdr;     /* wct = 17 */
 497         __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
 498         __u8 SecurityMode;
 499         __le16 MaxMpxCount;
 500         __le16 MaxNumberVcs;
 501         __le32 MaxBufferSize;
 502         __le32 MaxRawSize;
 503         __le32 SessionKey;
 504         __le32 Capabilities;    /* see below */
 505         __le32 SystemTimeLow;
 506         __le32 SystemTimeHigh;
 507         __le16 ServerTimeZone;
 508         __u8 EncryptionKeyLength;
 509         __u16 ByteCount;
 510         union {
 511                 /* cap extended security off */
 512                 DECLARE_FLEX_ARRAY(unsigned char, EncryptionKey);
 513                 /* followed by Domain name - if extended security is off */
 514                 /* followed by 16 bytes of server GUID */
 515                 /* then security blob if cap_extended_security negotiated */
 516                 struct {
 517                         unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
 518                         unsigned char SecurityBlob[];
 519                 } __attribute__((packed)) extended_response;
 520         } __attribute__((packed)) u;
 521 } __attribute__((packed)) NEGOTIATE_RSP;
 522
 523 /* SecurityMode bits */
 524 #define SECMODE_USER          0x01      /* off indicates share level security */
 525 #define SECMODE_PW_ENCRYPT    0x02
 526 #define SECMODE_SIGN_ENABLED  0x04      /* SMB security signatures enabled */
 527 #define SECMODE_SIGN_REQUIRED 0x08      /* SMB security signatures required */
 528
 529 /* Negotiate response Capabilities */
 530 #define CAP_RAW_MODE           0x00000001
 531 #define CAP_MPX_MODE           0x00000002
 532 #define CAP_UNICODE            0x00000004
 533 #define CAP_LARGE_FILES        0x00000008
 534 #define CAP_NT_SMBS            0x00000010       /* implies CAP_NT_FIND */
 535 #define CAP_RPC_REMOTE_APIS    0x00000020
 536 #define CAP_STATUS32           0x00000040
 537 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 538 #define CAP_LOCK_AND_READ      0x00000100
 539 #define CAP_NT_FIND            0x00000200
 540 #define CAP_DFS                0x00001000
 541 #define CAP_INFOLEVEL_PASSTHRU 0x00002000
 542 #define CAP_LARGE_READ_X       0x00004000
 543 #define CAP_LARGE_WRITE_X      0x00008000
 544 #define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
 545 #define CAP_UNIX               0x00800000
 546 #define CAP_COMPRESSED_DATA    0x02000000
 547 #define CAP_DYNAMIC_REAUTH     0x20000000
 548 #define CAP_PERSISTENT_HANDLES 0x40000000
 549 #define CAP_EXTENDED_SECURITY  0x80000000
 550
 551 typedef union smb_com_session_setup_andx {
 552         struct {                /* request format */
 553                 struct smb_hdr hdr;     /* wct = 12 */
 554                 __u8 AndXCommand;
 555                 __u8 AndXReserved;
 556                 __le16 AndXOffset;
 557                 __le16 MaxBufferSize;
 558                 __le16 MaxMpxCount;
 559                 __le16 VcNumber;
 560                 __u32 SessionKey;
 561                 __le16 SecurityBlobLength;
 562                 __u32 Reserved;
 563                 __le32 Capabilities;    /* see below */
 564                 __le16 ByteCount;
 565                 unsigned char SecurityBlob[];   /* followed by */
 566                 /* STRING NativeOS */
 567                 /* STRING NativeLanMan */
 568         } __attribute__((packed)) req;  /* NTLM request format (with
 569                                         extended security */
 570
 571         struct {                /* request format */
 572                 struct smb_hdr hdr;     /* wct = 13 */
 573                 __u8 AndXCommand;
 574                 __u8 AndXReserved;
 575                 __le16 AndXOffset;
 576                 __le16 MaxBufferSize;
 577                 __le16 MaxMpxCount;
 578                 __le16 VcNumber;
 579                 __u32 SessionKey;
 580                 __le16 CaseInsensitivePasswordLength; /* ASCII password len */
 581                 __le16 CaseSensitivePasswordLength; /* Unicode password length*/
 582                 __u32 Reserved; /* see below */
 583                 __le32 Capabilities;
 584                 __le16 ByteCount;
 585                 unsigned char CaseInsensitivePassword[];     /* followed by: */
 586                 /* unsigned char * CaseSensitivePassword; */
 587                 /* STRING AccountName */
 588                 /* STRING PrimaryDomain */
 589                 /* STRING NativeOS */
 590                 /* STRING NativeLanMan */
 591         } __attribute__((packed)) req_no_secext; /* NTLM request format (without
 592                                                         extended security */
 593
 594         struct {                /* default (NTLM) response format */
 595                 struct smb_hdr hdr;     /* wct = 4 */
 596                 __u8 AndXCommand;
 597                 __u8 AndXReserved;
 598                 __le16 AndXOffset;
 599                 __le16 Action;  /* see below */
 600                 __le16 SecurityBlobLength;
 601                 __u16 ByteCount;
 602                 unsigned char SecurityBlob[];   /* followed by */
 603 /*      unsigned char  * NativeOS;      */
 604 /*      unsigned char  * NativeLanMan;  */
 605 /*      unsigned char  * PrimaryDomain; */
 606         } __attribute__((packed)) resp; /* NTLM response
 607                                            (with or without extended sec) */
 608
 609         struct {                /* request format */
 610                 struct smb_hdr hdr;     /* wct = 10 */
 611                 __u8 AndXCommand;
 612                 __u8 AndXReserved;
 613                 __le16 AndXOffset;
 614                 __le16 MaxBufferSize;
 615                 __le16 MaxMpxCount;
 616                 __le16 VcNumber;
 617                 __u32 SessionKey;
 618                 __le16 PasswordLength;
 619                 __u32 Reserved; /* encrypt key len and offset */
 620                 __le16 ByteCount;
 621                 unsigned char AccountPassword[];        /* followed by */
 622                 /* STRING AccountName */
 623                 /* STRING PrimaryDomain */
 624                 /* STRING NativeOS */
 625                 /* STRING NativeLanMan */
 626         } __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
 627
 628         struct {                /* default (NTLM) response format */
 629                 struct smb_hdr hdr;     /* wct = 3 */
 630                 __u8 AndXCommand;
 631                 __u8 AndXReserved;
 632                 __le16 AndXOffset;
 633                 __le16 Action;  /* see below */
 634                 __u16 ByteCount;
 635                 unsigned char NativeOS[];       /* followed by */
 636 /*      unsigned char * NativeLanMan; */
 637 /*      unsigned char * PrimaryDomain; */
 638         } __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
 639 } __attribute__((packed)) SESSION_SETUP_ANDX;
 640
 641 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
 642
 643 #define NTLMSSP_SERVER_TYPE     1
 644 #define NTLMSSP_DOMAIN_TYPE     2
 645 #define NTLMSSP_FQ_DOMAIN_TYPE  3
 646 #define NTLMSSP_DNS_DOMAIN_TYPE 4
 647 #define NTLMSSP_DNS_PARENT_TYPE 5
 648
 649 struct ntlmssp2_name {
 650         __le16 type;
 651         __le16 length;
 652 /*      char   name[length]; */
 653 } __attribute__((packed));
 654
 655 struct ntlmv2_resp {
 656         union {
 657             char ntlmv2_hash[CIFS_ENCPWD_SIZE];
 658             struct {
 659                 __u8 reserved[8];
 660                 __u8 key[CIFS_SERVER_CHALLENGE_SIZE];
 661             } __attribute__((packed)) challenge;
 662         } __attribute__((packed));
 663         __le32 blob_signature;
 664         __u32  reserved;
 665         __le64  time;
 666         __u64  client_chal; /* random */
 667         __u32  reserved2;
 668         /* array of name entries could follow ending in minimum 4 byte struct */
 669 } __attribute__((packed));
 670
 671
 672 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
 673
 674 /* Capabilities bits (for NTLM SessSetup request) */
 675 #define CAP_UNICODE            0x00000004
 676 #define CAP_LARGE_FILES        0x00000008
 677 #define CAP_NT_SMBS            0x00000010
 678 #define CAP_STATUS32           0x00000040
 679 #define CAP_LEVEL_II_OPLOCKS   0x00000080
 680 #define CAP_NT_FIND            0x00000200       /* reserved should be zero
 681                                 (because NT_SMBs implies the same thing?) */
 682 #define CAP_BULK_TRANSFER      0x20000000
 683 #define CAP_EXTENDED_SECURITY  0x80000000
 684
 685 /* Action bits */
 686 #define GUEST_LOGIN 1
 687
 688 typedef struct smb_com_tconx_req {
 689         struct smb_hdr hdr;     /* wct = 4 */
 690         __u8 AndXCommand;
 691         __u8 AndXReserved;
 692         __le16 AndXOffset;
 693         __le16 Flags;           /* see below */
 694         __le16 PasswordLength;
 695         __le16 ByteCount;
 696         unsigned char Password[];       /* followed by */
 697 /* STRING Path    *//* \\server\share name */
 698         /* STRING Service */
 699 } __attribute__((packed)) TCONX_REQ;
 700
 701 typedef struct smb_com_tconx_rsp {
 702         struct smb_hdr hdr;     /* wct = 3 , not extended response */
 703         __u8 AndXCommand;
 704         __u8 AndXReserved;
 705         __le16 AndXOffset;
 706         __le16 OptionalSupport; /* see below */
 707         __u16 ByteCount;
 708         unsigned char Service[];        /* always ASCII, not Unicode */
 709         /* STRING NativeFileSystem */
 710 } __attribute__((packed)) TCONX_RSP;
 711
 712 typedef struct smb_com_tconx_rsp_ext {
 713         struct smb_hdr hdr;     /* wct = 7, extended response */
 714         __u8 AndXCommand;
 715         __u8 AndXReserved;
 716         __le16 AndXOffset;
 717         __le16 OptionalSupport; /* see below */
 718         __le32 MaximalShareAccessRights;
 719         __le32 GuestMaximalShareAccessRights;
 720         __u16 ByteCount;
 721         unsigned char Service[];        /* always ASCII, not Unicode */
 722         /* STRING NativeFileSystem */
 723 } __attribute__((packed)) TCONX_RSP_EXT;
 724
 725
 726 /* tree connect Flags */
 727 #define DISCONNECT_TID          0x0001
 728 #define TCON_EXTENDED_SIGNATURES 0x0004
 729 #define TCON_EXTENDED_SECINFO   0x0008
 730
 731 /* OptionalSupport bits */
 732 #define SMB_SUPPORT_SEARCH_BITS 0x0001  /* "must have" directory search bits
 733                                          (exclusive searches supported) */
 734 #define SMB_SHARE_IS_IN_DFS     0x0002
 735 #define SMB_CSC_MASK               0x000C
 736 /* CSC flags defined as follows */
 737 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000
 738 #define SMB_CSC_CACHE_AUTO_REINT   0x0004
 739 #define SMB_CSC_CACHE_VDO          0x0008
 740 #define SMB_CSC_NO_CACHING         0x000C
 741 #define SMB_UNIQUE_FILE_NAME    0x0010
 742 #define SMB_EXTENDED_SIGNATURES 0x0020
 743
 744 /* services
 745  *
 746  * A:       ie disk
 747  * LPT1:    ie printer
 748  * IPC      ie named pipe
 749  * COMM
 750  * ?????    ie any type
 751  *
 752  */
 753
 754 typedef struct smb_com_echo_req {
 755         struct  smb_hdr hdr;
 756         __le16  EchoCount;
 757         __le16  ByteCount;
 758         char    Data[];
 759 } __attribute__((packed)) ECHO_REQ;
 760
 761 typedef struct smb_com_echo_rsp {
 762         struct  smb_hdr hdr;
 763         __le16  SequenceNumber;
 764         __le16  ByteCount;
 765         char    Data[];
 766 } __attribute__((packed)) ECHO_RSP;
 767
 768 typedef struct smb_com_logoff_andx_req {
 769         struct smb_hdr hdr;     /* wct = 2 */
 770         __u8 AndXCommand;
 771         __u8 AndXReserved;
 772         __u16 AndXOffset;
 773         __u16 ByteCount;
 774 } __attribute__((packed)) LOGOFF_ANDX_REQ;
 775
 776 typedef struct smb_com_logoff_andx_rsp {
 777         struct smb_hdr hdr;     /* wct = 2 */
 778         __u8 AndXCommand;
 779         __u8 AndXReserved;
 780         __u16 AndXOffset;
 781         __u16 ByteCount;
 782 } __attribute__((packed)) LOGOFF_ANDX_RSP;
 783
 784 typedef union smb_com_tree_disconnect { /* as an alternative can use flag on
 785                                         tree_connect PDU to effect disconnect */
 786                                         /* tdis is probably simplest SMB PDU */
 787         struct {
 788                 struct smb_hdr hdr;     /* wct = 0 */
 789                 __u16 ByteCount;        /* bcc = 0 */
 790         } __attribute__((packed)) req;
 791         struct {
 792                 struct smb_hdr hdr;     /* wct = 0 */
 793                 __u16 ByteCount;        /* bcc = 0 */
 794         } __attribute__((packed)) resp;
 795 } __attribute__((packed)) TREE_DISCONNECT;
 796
 797 typedef struct smb_com_close_req {
 798         struct smb_hdr hdr;     /* wct = 3 */
 799         __u16 FileID;
 800         __u32 LastWriteTime;    /* should be zero or -1 */
 801         __u16 ByteCount;        /* 0 */
 802 } __attribute__((packed)) CLOSE_REQ;
 803
 804 typedef struct smb_com_close_rsp {
 805         struct smb_hdr hdr;     /* wct = 0 */
 806         __u16 ByteCount;        /* bct = 0 */
 807 } __attribute__((packed)) CLOSE_RSP;
 808
 809 typedef struct smb_com_flush_req {
 810         struct smb_hdr hdr;     /* wct = 1 */
 811         __u16 FileID;
 812         __u16 ByteCount;        /* 0 */
 813 } __attribute__((packed)) FLUSH_REQ;
 814
 815 typedef struct smb_com_findclose_req {
 816         struct smb_hdr hdr; /* wct = 1 */
 817         __u16 FileID;
 818         __u16 ByteCount;    /* 0 */
 819 } __attribute__((packed)) FINDCLOSE_REQ;
 820
 821 /* OpenFlags */
 822 #define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
 823 #define REQ_OPLOCK         0x00000002
 824 #define REQ_BATCHOPLOCK    0x00000004
 825 #define REQ_OPENDIRONLY    0x00000008
 826 #define REQ_EXTENDED_INFO  0x00000010
 827
 828 /* File type */
 829 #define DISK_TYPE               0x0000
 830 #define BYTE_PIPE_TYPE          0x0001
 831 #define MESSAGE_PIPE_TYPE       0x0002
 832 #define PRINTER_TYPE            0x0003
 833 #define COMM_DEV_TYPE           0x0004
 834 #define UNKNOWN_TYPE            0xFFFF
 835
 836 /* Device Type or File Status Flags */
 837 #define NO_EAS                  0x0001
 838 #define NO_SUBSTREAMS           0x0002
 839 #define NO_REPARSETAG           0x0004
 840 /* following flags can apply if pipe */
 841 #define ICOUNT_MASK             0x00FF
 842 #define PIPE_READ_MODE          0x0100
 843 #define NAMED_PIPE_TYPE         0x0400
 844 #define PIPE_END_POINT          0x4000
 845 #define BLOCKING_NAMED_PIPE     0x8000
 846
 847 typedef struct smb_com_open_req {       /* also handles create */
 848         struct smb_hdr hdr;     /* wct = 24 */
 849         __u8 AndXCommand;
 850         __u8 AndXReserved;
 851         __le16 AndXOffset;
 852         __u8 Reserved;          /* Must Be Zero */
 853         __le16 NameLength;
 854         __le32 OpenFlags;
 855         __u32  RootDirectoryFid;
 856         __le32 DesiredAccess;
 857         __le64 AllocationSize;
 858         __le32 FileAttributes;
 859         __le32 ShareAccess;
 860         __le32 CreateDisposition;
 861         __le32 CreateOptions;
 862         __le32 ImpersonationLevel;
 863         __u8 SecurityFlags;
 864         __le16 ByteCount;
 865         char fileName[];
 866 } __attribute__((packed)) OPEN_REQ;
 867
 868 /* open response: oplock levels */
 869 #define OPLOCK_NONE      0
 870 #define OPLOCK_EXCLUSIVE 1
 871 #define OPLOCK_BATCH     2
 872 #define OPLOCK_READ      3  /* level 2 oplock */
 873
 874 /* open response for CreateAction shifted left */
 875 #define CIFS_CREATE_ACTION 0x20000 /* file created */
 876
 877 typedef struct smb_com_open_rsp {
 878         struct smb_hdr hdr;     /* wct = 34 BB */
 879         __u8 AndXCommand;
 880         __u8 AndXReserved;
 881         __le16 AndXOffset;
 882         __u8 OplockLevel;
 883         __u16 Fid;
 884         __le32 CreateAction;
 885         struct_group_attr(common_attributes, __packed,
 886                 __le64 CreationTime;
 887                 __le64 LastAccessTime;
 888                 __le64 LastWriteTime;
 889                 __le64 ChangeTime;
 890                 __le32 FileAttributes;
 891         );
 892         __le64 AllocationSize;
 893         __le64 EndOfFile;
 894         __le16 FileType;
 895         __le16 DeviceState;
 896         __u8 DirectoryFlag;
 897         __u16 ByteCount;        /* bct = 0 */
 898 } __attribute__((packed)) OPEN_RSP;
 899
 900 typedef struct smb_com_open_rsp_ext {
 901         struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
 902         __u8 AndXCommand;
 903         __u8 AndXReserved;
 904         __le16 AndXOffset;
 905         __u8 OplockLevel;
 906         __u16 Fid;
 907         __le32 CreateAction;
 908         __le64 CreationTime;
 909         __le64 LastAccessTime;
 910         __le64 LastWriteTime;
 911         __le64 ChangeTime;
 912         __le32 FileAttributes;
 913         __le64 AllocationSize;
 914         __le64 EndOfFile;
 915         __le16 FileType;
 916         __le16 DeviceState;
 917         __u8 DirectoryFlag;
 918         __u8 VolumeGUID[16];
 919         __u64 FileId; /* note no endian conversion - is opaque UniqueID */
 920         __le32 MaximalAccessRights;
 921         __le32 GuestMaximalAccessRights;
 922         __u16 ByteCount;        /* bct = 0 */
 923 } __attribute__((packed)) OPEN_RSP_EXT;
 924
 925
 926 /* format of legacy open request */
 927 typedef struct smb_com_openx_req {
 928         struct smb_hdr  hdr;    /* wct = 15 */
 929         __u8 AndXCommand;
 930         __u8 AndXReserved;
 931         __le16 AndXOffset;
 932         __le16 OpenFlags;
 933         __le16 Mode;
 934         __le16 Sattr; /* search attributes */
 935         __le16 FileAttributes;  /* dos attrs */
 936         __le32 CreateTime; /* os2 format */
 937         __le16 OpenFunction;
 938         __le32 EndOfFile;
 939         __le32 Timeout;
 940         __le32 Reserved;
 941         __le16  ByteCount;  /* file name follows */
 942         char   fileName[];
 943 } __attribute__((packed)) OPENX_REQ;
 944
 945 typedef struct smb_com_openx_rsp {
 946         struct smb_hdr  hdr;    /* wct = 15 */
 947         __u8 AndXCommand;
 948         __u8 AndXReserved;
 949         __le16 AndXOffset;
 950         __u16  Fid;
 951         __le16 FileAttributes;
 952         __le32 LastWriteTime; /* os2 format */
 953         __le32 EndOfFile;
 954         __le16 Access;
 955         __le16 FileType;
 956         __le16 IPCState;
 957         __le16 Action;
 958         __u32  FileId;
 959         __u16  Reserved;
 960         __u16  ByteCount;
 961 } __attribute__((packed)) OPENX_RSP;
 962
 963 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
 964
 965 /* Legacy write request for older servers */
 966 typedef struct smb_com_writex_req {
 967         struct smb_hdr hdr;     /* wct = 12 */
 968         __u8 AndXCommand;
 969         __u8 AndXReserved;
 970         __le16 AndXOffset;
 971         __u16 Fid;
 972         __le32 OffsetLow;
 973         __u32 Reserved; /* Timeout */
 974         __le16 WriteMode; /* 1 = write through */
 975         __le16 Remaining;
 976         __le16 Reserved2;
 977         __le16 DataLengthLow;
 978         __le16 DataOffset;
 979         __le16 ByteCount;
 980         __u8 Pad;               /* BB check for whether padded to DWORD
 981                                    boundary and optimum performance here */
 982         char Data[];
 983 } __attribute__((packed)) WRITEX_REQ;
 984
 985 typedef struct smb_com_write_req {
 986         struct smb_hdr hdr;     /* wct = 14 */
 987         __u8 AndXCommand;
 988         __u8 AndXReserved;
 989         __le16 AndXOffset;
 990         __u16 Fid;
 991         __le32 OffsetLow;
 992         __u32 Reserved;
 993         __le16 WriteMode;
 994         __le16 Remaining;
 995         __le16 DataLengthHigh;
 996         __le16 DataLengthLow;
 997         __le16 DataOffset;
 998         __le32 OffsetHigh;
 999         __le16 ByteCount;
1000         __u8 Pad;               /* BB check for whether padded to DWORD
1001                                    boundary and optimum performance here */
1002         char Data[];
1003 } __attribute__((packed)) WRITE_REQ;
1004
1005 typedef struct smb_com_write_rsp {
1006         struct smb_hdr hdr;     /* wct = 6 */
1007         __u8 AndXCommand;
1008         __u8 AndXReserved;
1009         __le16 AndXOffset;
1010         __le16 Count;
1011         __le16 Remaining;
1012         __le16 CountHigh;
1013         __u16  Reserved;
1014         __u16 ByteCount;
1015 } __attribute__((packed)) WRITE_RSP;
1016
1017 /* legacy read request for older servers */
1018 typedef struct smb_com_readx_req {
1019         struct smb_hdr hdr;     /* wct = 10 */
1020         __u8 AndXCommand;
1021         __u8 AndXReserved;
1022         __le16 AndXOffset;
1023         __u16 Fid;
1024         __le32 OffsetLow;
1025         __le16 MaxCount;
1026         __le16 MinCount;        /* obsolete */
1027         __le32 Reserved;
1028         __le16 Remaining;
1029         __le16 ByteCount;
1030 } __attribute__((packed)) READX_REQ;
1031
1032 typedef struct smb_com_read_req {
1033         struct smb_hdr hdr;     /* wct = 12 */
1034         __u8 AndXCommand;
1035         __u8 AndXReserved;
1036         __le16 AndXOffset;
1037         __u16 Fid;
1038         __le32 OffsetLow;
1039         __le16 MaxCount;
1040         __le16 MinCount;                /* obsolete */
1041         __le32 MaxCountHigh;
1042         __le16 Remaining;
1043         __le32 OffsetHigh;
1044         __le16 ByteCount;
1045 } __attribute__((packed)) READ_REQ;
1046
1047 typedef struct smb_com_read_rsp {
1048         struct smb_hdr hdr;     /* wct = 12 */
1049         __u8 AndXCommand;
1050         __u8 AndXReserved;
1051         __le16 AndXOffset;
1052         __le16 Remaining;
1053         __le16 DataCompactionMode;
1054         __le16 Reserved;
1055         __le16 DataLength;
1056         __le16 DataOffset;
1057         __le16 DataLengthHigh;
1058         __u64 Reserved2;
1059         __u16 ByteCount;
1060         /* read response data immediately follows */
1061 } __attribute__((packed)) READ_RSP;
1062
1063 typedef struct locking_andx_range {
1064         __le16 Pid;
1065         __le16 Pad;
1066         __le32 OffsetHigh;
1067         __le32 OffsetLow;
1068         __le32 LengthHigh;
1069         __le32 LengthLow;
1070 } __attribute__((packed)) LOCKING_ANDX_RANGE;
1071
1072 #define LOCKING_ANDX_SHARED_LOCK     0x01
1073 #define LOCKING_ANDX_OPLOCK_RELEASE  0x02
1074 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
1075 #define LOCKING_ANDX_CANCEL_LOCK     0x08
1076 #define LOCKING_ANDX_LARGE_FILES     0x10       /* always on for us */
1077
1078 typedef struct smb_com_lock_req {
1079         struct smb_hdr hdr;     /* wct = 8 */
1080         __u8 AndXCommand;
1081         __u8 AndXReserved;
1082         __le16 AndXOffset;
1083         __u16 Fid;
1084         __u8 LockType;
1085         __u8 OplockLevel;
1086         __le32 Timeout;
1087         __le16 NumberOfUnlocks;
1088         __le16 NumberOfLocks;
1089         __le16 ByteCount;
1090         LOCKING_ANDX_RANGE Locks[];
1091 } __attribute__((packed)) LOCK_REQ;
1092
1093 /* lock type */
1094 #define CIFS_RDLCK      0
1095 #define CIFS_WRLCK      1
1096 #define CIFS_UNLCK      2
1097 typedef struct cifs_posix_lock {
1098         __le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
1099         __le16  lock_flags; /* 1 = Wait (only valid for setlock) */
1100         __le32  pid;
1101         __le64  start;
1102         __le64  length;
1103         /* BB what about additional owner info to identify network client */
1104 } __attribute__((packed)) CIFS_POSIX_LOCK;
1105
1106 typedef struct smb_com_lock_rsp {
1107         struct smb_hdr hdr;     /* wct = 2 */
1108         __u8 AndXCommand;
1109         __u8 AndXReserved;
1110         __le16 AndXOffset;
1111         __u16 ByteCount;
1112 } __attribute__((packed)) LOCK_RSP;
1113
1114 typedef struct smb_com_rename_req {
1115         struct smb_hdr hdr;     /* wct = 1 */
1116         __le16 SearchAttributes;        /* target file attributes */
1117         __le16 ByteCount;
1118         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1119         unsigned char OldFileName[];
1120         /* followed by __u8 BufferFormat2 */
1121         /* followed by NewFileName */
1122 } __attribute__((packed)) RENAME_REQ;
1123
1124         /* copy request flags */
1125 #define COPY_MUST_BE_FILE      0x0001
1126 #define COPY_MUST_BE_DIR       0x0002
1127 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
1128 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
1129 #define COPY_VERIFY_WRITES     0x0010
1130 #define COPY_TREE              0x0020
1131
1132 typedef struct smb_com_copy_req {
1133         struct smb_hdr hdr;     /* wct = 3 */
1134         __u16 Tid2;
1135         __le16 OpenFunction;
1136         __le16 Flags;
1137         __le16 ByteCount;
1138         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1139         unsigned char OldFileName[];
1140         /* followed by __u8 BufferFormat2 */
1141         /* followed by NewFileName string */
1142 } __attribute__((packed)) COPY_REQ;
1143
1144 typedef struct smb_com_copy_rsp {
1145         struct smb_hdr hdr;     /* wct = 1 */
1146         __le16 CopyCount;    /* number of files copied */
1147         __u16 ByteCount;    /* may be zero */
1148         __u8 BufferFormat;  /* 0x04 - only present if errored file follows */
1149         unsigned char ErrorFileName[]; /* only present if error in copy */
1150 } __attribute__((packed)) COPY_RSP;
1151
1152 #define CREATE_HARD_LINK                0x103
1153 #define MOVEFILE_COPY_ALLOWED           0x0002
1154 #define MOVEFILE_REPLACE_EXISTING       0x0001
1155
1156 typedef struct smb_com_nt_rename_req {  /* A5 - also used for create hardlink */
1157         struct smb_hdr hdr;     /* wct = 4 */
1158         __le16 SearchAttributes;        /* target file attributes */
1159         __le16 Flags;           /* spec says Information Level */
1160         __le32 ClusterCount;
1161         __le16 ByteCount;
1162         __u8 BufferFormat;      /* 4 = ASCII or Unicode */
1163         unsigned char OldFileName[];
1164         /* followed by __u8 BufferFormat2 */
1165         /* followed by NewFileName */
1166 } __attribute__((packed)) NT_RENAME_REQ;
1167
1168 typedef struct smb_com_rename_rsp {
1169         struct smb_hdr hdr;     /* wct = 0 */
1170         __u16 ByteCount;        /* bct = 0 */
1171 } __attribute__((packed)) RENAME_RSP;
1172
1173 typedef struct smb_com_delete_file_req {
1174         struct smb_hdr hdr;     /* wct = 1 */
1175         __le16 SearchAttributes;
1176         __le16 ByteCount;
1177         __u8 BufferFormat;      /* 4 = ASCII */
1178         unsigned char fileName[];
1179 } __attribute__((packed)) DELETE_FILE_REQ;
1180
1181 typedef struct smb_com_delete_file_rsp {
1182         struct smb_hdr hdr;     /* wct = 0 */
1183         __u16 ByteCount;        /* bct = 0 */
1184 } __attribute__((packed)) DELETE_FILE_RSP;
1185
1186 typedef struct smb_com_delete_directory_req {
1187         struct smb_hdr hdr;     /* wct = 0 */
1188         __le16 ByteCount;
1189         __u8 BufferFormat;      /* 4 = ASCII */
1190         unsigned char DirName[];
1191 } __attribute__((packed)) DELETE_DIRECTORY_REQ;
1192
1193 typedef struct smb_com_delete_directory_rsp {
1194         struct smb_hdr hdr;     /* wct = 0 */
1195         __u16 ByteCount;        /* bct = 0 */
1196 } __attribute__((packed)) DELETE_DIRECTORY_RSP;
1197
1198 typedef struct smb_com_create_directory_req {
1199         struct smb_hdr hdr;     /* wct = 0 */
1200         __le16 ByteCount;
1201         __u8 BufferFormat;      /* 4 = ASCII */
1202         unsigned char DirName[];
1203 } __attribute__((packed)) CREATE_DIRECTORY_REQ;
1204
1205 typedef struct smb_com_create_directory_rsp {
1206         struct smb_hdr hdr;     /* wct = 0 */
1207         __u16 ByteCount;        /* bct = 0 */
1208 } __attribute__((packed)) CREATE_DIRECTORY_RSP;
1209
1210 typedef struct smb_com_query_information_req {
1211         struct smb_hdr hdr;     /* wct = 0 */
1212         __le16 ByteCount;       /* 1 + namelen + 1 */
1213         __u8 BufferFormat;      /* 4 = ASCII */
1214         unsigned char FileName[];
1215 } __attribute__((packed)) QUERY_INFORMATION_REQ;
1216
1217 typedef struct smb_com_query_information_rsp {
1218         struct smb_hdr hdr;     /* wct = 10 */
1219         __le16 attr;
1220         __le32  last_write_time;
1221         __le32 size;
1222         __u16  reserved[5];
1223         __le16 ByteCount;       /* bcc = 0 */
1224 } __attribute__((packed)) QUERY_INFORMATION_RSP;
1225
1226 typedef struct smb_com_setattr_req {
1227         struct smb_hdr hdr; /* wct = 8 */
1228         __le16 attr;
1229         __le16 time_low;
1230         __le16 time_high;
1231         __le16 reserved[5]; /* must be zero */
1232         __u16  ByteCount;
1233         __u8   BufferFormat; /* 4 = ASCII */
1234         unsigned char fileName[];
1235 } __attribute__((packed)) SETATTR_REQ;
1236
1237 typedef struct smb_com_setattr_rsp {
1238         struct smb_hdr hdr;     /* wct = 0 */
1239         __u16 ByteCount;        /* bct = 0 */
1240 } __attribute__((packed)) SETATTR_RSP;
1241
1242 /* empty wct response to setattr */
1243
1244 /*******************************************************/
1245 /* NT Transact structure definitions follow            */
1246 /* Currently only ioctl, acl (get security descriptor) */
1247 /* and notify are implemented                          */
1248 /*******************************************************/
1249 typedef struct smb_com_ntransact_req {
1250         struct smb_hdr hdr; /* wct >= 19 */
1251         __u8 MaxSetupCount;
1252         __u16 Reserved;
1253         __le32 TotalParameterCount;
1254         __le32 TotalDataCount;
1255         __le32 MaxParameterCount;
1256         __le32 MaxDataCount;
1257         __le32 ParameterCount;
1258         __le32 ParameterOffset;
1259         __le32 DataCount;
1260         __le32 DataOffset;
1261         __u8 SetupCount; /* four setup words follow subcommand */
1262         /* SNIA spec incorrectly included spurious pad here */
1263         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1264         /* SetupCount words follow then */
1265         __le16 ByteCount;
1266         __u8 Pad[3];
1267         __u8 Parms[];
1268 } __attribute__((packed)) NTRANSACT_REQ;
1269
1270 typedef struct smb_com_ntransact_rsp {
1271         struct smb_hdr hdr;     /* wct = 18 */
1272         __u8 Reserved[3];
1273         __le32 TotalParameterCount;
1274         __le32 TotalDataCount;
1275         __le32 ParameterCount;
1276         __le32 ParameterOffset;
1277         __le32 ParameterDisplacement;
1278         __le32 DataCount;
1279         __le32 DataOffset;
1280         __le32 DataDisplacement;
1281         __u8 SetupCount;   /* 0 */
1282         __u16 ByteCount;
1283         /* __u8 Pad[3]; */
1284         /* parms and data follow */
1285 } __attribute__((packed)) NTRANSACT_RSP;
1286
1287 /* See MS-SMB 2.2.7.2.1.1 */
1288 struct srv_copychunk {
1289         __le64 SourceOffset;
1290         __le64 DestinationOffset;
1291         __le32 CopyLength;
1292         __u32  Reserved;
1293 } __packed;
1294
1295 typedef struct smb_com_transaction_ioctl_req {
1296         struct smb_hdr hdr;     /* wct = 23 */
1297         __u8 MaxSetupCount;
1298         __u16 Reserved;
1299         __le32 TotalParameterCount;
1300         __le32 TotalDataCount;
1301         __le32 MaxParameterCount;
1302         __le32 MaxDataCount;
1303         __le32 ParameterCount;
1304         __le32 ParameterOffset;
1305         __le32 DataCount;
1306         __le32 DataOffset;
1307         __u8 SetupCount; /* four setup words follow subcommand */
1308         /* SNIA spec incorrectly included spurious pad here */
1309         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1310         __le32 FunctionCode;
1311         __u16 Fid;
1312         __u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1313         __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1314         __le16 ByteCount;
1315         __u8 Pad[3];
1316         __u8 Data[];
1317 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
1318
1319 typedef struct smb_com_transaction_compr_ioctl_req {
1320         struct smb_hdr hdr;     /* wct = 23 */
1321         __u8 MaxSetupCount;
1322         __u16 Reserved;
1323         __le32 TotalParameterCount;
1324         __le32 TotalDataCount;
1325         __le32 MaxParameterCount;
1326         __le32 MaxDataCount;
1327         __le32 ParameterCount;
1328         __le32 ParameterOffset;
1329         __le32 DataCount;
1330         __le32 DataOffset;
1331         __u8 SetupCount; /* four setup words follow subcommand */
1332         /* SNIA spec incorrectly included spurious pad here */
1333         __le16 SubCommand; /* 2 = IOCTL/FSCTL */
1334         __le32 FunctionCode;
1335         __u16 Fid;
1336         __u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
1337         __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
1338         __le16 ByteCount;
1339         __u8 Pad[3];
1340         __le16 compression_state;  /* See below for valid flags */
1341 } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
1342
1343 /* compression state flags */
1344 #define COMPRESSION_FORMAT_NONE         0x0000
1345 #define COMPRESSION_FORMAT_DEFAULT      0x0001
1346 #define COMPRESSION_FORMAT_LZNT1        0x0002
1347
1348 typedef struct smb_com_transaction_ioctl_rsp {
1349         struct smb_hdr hdr;     /* wct = 19 */
1350         __u8 Reserved[3];
1351         __le32 TotalParameterCount;
1352         __le32 TotalDataCount;
1353         __le32 ParameterCount;
1354         __le32 ParameterOffset;
1355         __le32 ParameterDisplacement;
1356         __le32 DataCount;
1357         __le32 DataOffset;
1358         __le32 DataDisplacement;
1359         __u8 SetupCount;        /* 1 */
1360         __le16 ReturnedDataLen;
1361         __le16 ByteCount;
1362 } __attribute__((packed)) TRANSACT_IOCTL_RSP;
1363
1364 #define CIFS_ACL_OWNER 1
1365 #define CIFS_ACL_GROUP 2
1366 #define CIFS_ACL_DACL  4
1367 #define CIFS_ACL_SACL  8
1368
1369 typedef struct smb_com_transaction_qsec_req {
1370         struct smb_hdr hdr;     /* wct = 19 */
1371         __u8 MaxSetupCount;
1372         __u16 Reserved;
1373         __le32 TotalParameterCount;
1374         __le32 TotalDataCount;
1375         __le32 MaxParameterCount;
1376         __le32 MaxDataCount;
1377         __le32 ParameterCount;
1378         __le32 ParameterOffset;
1379         __le32 DataCount;
1380         __le32 DataOffset;
1381         __u8 SetupCount; /* no setup words follow subcommand */
1382         /* SNIA spec incorrectly included spurious pad here */
1383         __le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
1384         __le16 ByteCount; /* bcc = 3 + 8 */
1385         __u8 Pad[3];
1386         __u16 Fid;
1387         __u16 Reserved2;
1388         __le32 AclFlags;
1389 } __attribute__((packed)) QUERY_SEC_DESC_REQ;
1390
1391
1392 typedef struct smb_com_transaction_ssec_req {
1393         struct smb_hdr hdr;     /* wct = 19 */
1394         __u8 MaxSetupCount;
1395         __u16 Reserved;
1396         __le32 TotalParameterCount;
1397         __le32 TotalDataCount;
1398         __le32 MaxParameterCount;
1399         __le32 MaxDataCount;
1400         __le32 ParameterCount;
1401         __le32 ParameterOffset;
1402         __le32 DataCount;
1403         __le32 DataOffset;
1404         __u8 SetupCount; /* no setup words follow subcommand */
1405         /* SNIA spec incorrectly included spurious pad here */
1406         __le16 SubCommand; /* 3 = SET_SECURITY_DESC */
1407         __le16 ByteCount; /* bcc = 3 + 8 */
1408         __u8 Pad[3];
1409         __u16 Fid;
1410         __u16 Reserved2;
1411         __le32 AclFlags;
1412 } __attribute__((packed)) SET_SEC_DESC_REQ;
1413
1414 typedef struct smb_com_transaction_change_notify_req {
1415         struct smb_hdr hdr;     /* wct = 23 */
1416         __u8 MaxSetupCount;
1417         __u16 Reserved;
1418         __le32 TotalParameterCount;
1419         __le32 TotalDataCount;
1420         __le32 MaxParameterCount;
1421         __le32 MaxDataCount;
1422         __le32 ParameterCount;
1423         __le32 ParameterOffset;
1424         __le32 DataCount;
1425         __le32 DataOffset;
1426         __u8 SetupCount; /* four setup words follow subcommand */
1427         /* SNIA spec incorrectly included spurious pad here */
1428         __le16 SubCommand;/* 4 = Change Notify */
1429         __le32 CompletionFilter;  /* operation to monitor */
1430         __u16 Fid;
1431         __u8 WatchTree;  /* 1 = Monitor subdirectories */
1432         __u8 Reserved2;
1433         __le16 ByteCount;
1434 /*      __u8 Pad[3];*/
1435 /*      __u8 Data[];*/
1436 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
1437
1438 /* BB eventually change to use generic ntransact rsp struct
1439       and validation routine */
1440 typedef struct smb_com_transaction_change_notify_rsp {
1441         struct smb_hdr hdr;     /* wct = 18 */
1442         __u8 Reserved[3];
1443         __le32 TotalParameterCount;
1444         __le32 TotalDataCount;
1445         __le32 ParameterCount;
1446         __le32 ParameterOffset;
1447         __le32 ParameterDisplacement;
1448         __le32 DataCount;
1449         __le32 DataOffset;
1450         __le32 DataDisplacement;
1451         __u8 SetupCount;   /* 0 */
1452         __u16 ByteCount;
1453         /* __u8 Pad[3]; */
1454 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
1455 /* Completion Filter flags for Notify */
1456 #define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
1457 #define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
1458 #define FILE_NOTIFY_CHANGE_NAME         0x00000003
1459 #define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
1460 #define FILE_NOTIFY_CHANGE_SIZE         0x00000008
1461 #define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
1462 #define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
1463 #define FILE_NOTIFY_CHANGE_CREATION     0x00000040
1464 #define FILE_NOTIFY_CHANGE_EA           0x00000080
1465 #define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
1466 #define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
1467 #define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
1468 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
1469
1470 #define FILE_ACTION_ADDED               0x00000001
1471 #define FILE_ACTION_REMOVED             0x00000002
1472 #define FILE_ACTION_MODIFIED            0x00000003
1473 #define FILE_ACTION_RENAMED_OLD_NAME    0x00000004
1474 #define FILE_ACTION_RENAMED_NEW_NAME    0x00000005
1475 #define FILE_ACTION_ADDED_STREAM        0x00000006
1476 #define FILE_ACTION_REMOVED_STREAM      0x00000007
1477 #define FILE_ACTION_MODIFIED_STREAM     0x00000008
1478
1479 /* response contains array of the following structures */
1480 struct file_notify_information {
1481         __le32 NextEntryOffset;
1482         __le32 Action;
1483         __le32 FileNameLength;
1484         __u8  FileName[];
1485 } __attribute__((packed));
1486
1487 /* For IO_REPARSE_TAG_SYMLINK */
1488 struct reparse_symlink_data {
1489         __le32  ReparseTag;
1490         __le16  ReparseDataLength;
1491         __u16   Reserved;
1492         __le16  SubstituteNameOffset;
1493         __le16  SubstituteNameLength;
1494         __le16  PrintNameOffset;
1495         __le16  PrintNameLength;
1496         __le32  Flags;
1497         char    PathBuffer[];
1498 } __attribute__((packed));
1499
1500 /* Flag above */
1501 #define SYMLINK_FLAG_RELATIVE 0x00000001
1502
1503 /* For IO_REPARSE_TAG_NFS */
1504 #define NFS_SPECFILE_LNK        0x00000000014B4E4C
1505 #define NFS_SPECFILE_CHR        0x0000000000524843
1506 #define NFS_SPECFILE_BLK        0x00000000004B4C42
1507 #define NFS_SPECFILE_FIFO       0x000000004F464946
1508 #define NFS_SPECFILE_SOCK       0x000000004B434F53
1509 struct reparse_posix_data {
1510         __le32  ReparseTag;
1511         __le16  ReparseDataLength;
1512         __u16   Reserved;
1513         __le64  InodeType; /* LNK, FIFO, CHR etc. */
1514         __u8    DataBuffer[];
1515 } __attribute__((packed));
1516
1517 struct cifs_quota_data {
1518         __u32   rsrvd1;  /* 0 */
1519         __u32   sid_size;
1520         __u64   rsrvd2;  /* 0 */
1521         __u64   space_used;
1522         __u64   soft_limit;
1523         __u64   hard_limit;
1524         char    sid[];  /* variable size? */
1525 } __attribute__((packed));
1526
1527 /* quota sub commands */
1528 #define QUOTA_LIST_CONTINUE         0
1529 #define QUOTA_LIST_START        0x100
1530 #define QUOTA_FOR_SID           0x101
1531
1532 struct trans2_req {
1533         /* struct smb_hdr hdr precedes. Set wct = 14+ */
1534         __le16 TotalParameterCount;
1535         __le16 TotalDataCount;
1536         __le16 MaxParameterCount;
1537         __le16 MaxDataCount;
1538         __u8 MaxSetupCount;
1539         __u8 Reserved;
1540         __le16 Flags;
1541         __le32 Timeout;
1542         __u16 Reserved2;
1543         __le16 ParameterCount;
1544         __le16 ParameterOffset;
1545         __le16 DataCount;
1546         __le16 DataOffset;
1547         __u8 SetupCount;
1548         __u8 Reserved3;
1549         __le16 SubCommand; /* 1st setup word - SetupCount words follow */
1550         __le16 ByteCount;
1551 } __attribute__((packed));
1552
1553 struct smb_t2_req {
1554         struct smb_hdr hdr;
1555         struct trans2_req t2_req;
1556 } __attribute__((packed));
1557
1558 struct trans2_resp {
1559         /* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
1560         __le16 TotalParameterCount;
1561         __le16 TotalDataCount;
1562         __u16 Reserved;
1563         __le16 ParameterCount;
1564         __le16 ParameterOffset;
1565         __le16 ParameterDisplacement;
1566         __le16 DataCount;
1567         __le16 DataOffset;
1568         __le16 DataDisplacement;
1569         __u8 SetupCount;
1570         __u8 Reserved1;
1571         /* SetupWords[SetupCount];
1572         __u16 ByteCount;
1573         __u16 Reserved2;*/
1574         /* data area follows */
1575 } __attribute__((packed));
1576
1577 struct smb_t2_rsp {
1578         struct smb_hdr hdr;
1579         struct trans2_resp t2_rsp;
1580 } __attribute__((packed));
1581
1582 /* PathInfo/FileInfo infolevels */
1583 #define SMB_INFO_STANDARD                   1
1584 #define SMB_SET_FILE_EA                     2
1585 #define SMB_QUERY_FILE_EA_SIZE              2
1586 #define SMB_INFO_QUERY_EAS_FROM_LIST        3
1587 #define SMB_INFO_QUERY_ALL_EAS              4
1588 #define SMB_INFO_IS_NAME_VALID              6
1589 #define SMB_QUERY_FILE_BASIC_INFO       0x101
1590 #define SMB_QUERY_FILE_STANDARD_INFO    0x102
1591 #define SMB_QUERY_FILE_EA_INFO          0x103
1592 #define SMB_QUERY_FILE_NAME_INFO        0x104
1593 #define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
1594 #define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
1595 #define SMB_QUERY_FILE_ALL_INFO         0x107
1596 #define SMB_QUERY_ALT_NAME_INFO         0x108
1597 #define SMB_QUERY_FILE_STREAM_INFO      0x109
1598 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
1599 #define SMB_QUERY_FILE_UNIX_BASIC       0x200
1600 #define SMB_QUERY_FILE_UNIX_LINK        0x201
1601 #define SMB_QUERY_POSIX_ACL             0x204
1602 #define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
1603 #define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
1604 #define SMB_QUERY_POSIX_PERMISSION      0x207
1605 #define SMB_QUERY_POSIX_LOCK            0x208
1606 /* #define SMB_POSIX_OPEN               0x209 */
1607 /* #define SMB_POSIX_UNLINK             0x20a */
1608 #define SMB_QUERY_FILE__UNIX_INFO2      0x20b
1609 #define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
1610 #define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
1611 #define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
1612 #define SMB_QUERY_FILE_POSITION_INFO    0x3f6
1613 #define SMB_QUERY_FILE_MODE_INFO        0x3f8
1614 #define SMB_QUERY_FILE_ALGN_INFO        0x3f9
1615
1616
1617 #define SMB_SET_FILE_BASIC_INFO         0x101
1618 #define SMB_SET_FILE_DISPOSITION_INFO   0x102
1619 #define SMB_SET_FILE_ALLOCATION_INFO    0x103
1620 #define SMB_SET_FILE_END_OF_FILE_INFO   0x104
1621 #define SMB_SET_FILE_UNIX_BASIC         0x200
1622 #define SMB_SET_FILE_UNIX_LINK          0x201
1623 #define SMB_SET_FILE_UNIX_HLINK         0x203
1624 #define SMB_SET_POSIX_ACL               0x204
1625 #define SMB_SET_XATTR                   0x205
1626 #define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
1627 #define SMB_SET_POSIX_LOCK              0x208
1628 #define SMB_POSIX_OPEN                  0x209
1629 #define SMB_POSIX_UNLINK                0x20a
1630 #define SMB_SET_FILE_UNIX_INFO2         0x20b
1631 #define SMB_SET_FILE_BASIC_INFO2        0x3ec
1632 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
1633 #define SMB_FILE_ALL_INFO2              0x3fa
1634 #define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
1635 #define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
1636 #define SMB_FILE_MOVE_CLUSTER_INFO      0x407
1637 #define SMB_FILE_QUOTA_INFO             0x408
1638 #define SMB_FILE_REPARSEPOINT_INFO      0x409
1639 #define SMB_FILE_MAXIMUM_INFO           0x40d
1640
1641 /* Find File infolevels */
1642 #define SMB_FIND_FILE_INFO_STANDARD       0x001
1643 #define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
1644 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
1645 #define SMB_FIND_FILE_DIRECTORY_INFO      0x101
1646 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
1647 #define SMB_FIND_FILE_NAMES_INFO          0x103
1648 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
1649 #define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
1650 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
1651 #define SMB_FIND_FILE_UNIX                0x202
1652 /* #define SMB_FIND_FILE_POSIX_INFO          0x064 */
1653
1654 typedef struct smb_com_transaction2_qpi_req {
1655         struct smb_hdr hdr;     /* wct = 14+ */
1656         __le16 TotalParameterCount;
1657         __le16 TotalDataCount;
1658         __le16 MaxParameterCount;
1659         __le16 MaxDataCount;
1660         __u8 MaxSetupCount;
1661         __u8 Reserved;
1662         __le16 Flags;
1663         __le32 Timeout;
1664         __u16 Reserved2;
1665         __le16 ParameterCount;
1666         __le16 ParameterOffset;
1667         __le16 DataCount;
1668         __le16 DataOffset;
1669         __u8 SetupCount;
1670         __u8 Reserved3;
1671         __le16 SubCommand;      /* one setup word */
1672         __le16 ByteCount;
1673         __u8 Pad;
1674         __le16 InformationLevel;
1675         __u32 Reserved4;
1676         char FileName[];
1677 } __attribute__((packed)) TRANSACTION2_QPI_REQ;
1678
1679 typedef struct smb_com_transaction2_qpi_rsp {
1680         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1681         struct trans2_resp t2;
1682         __u16 ByteCount;
1683         __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1684 } __attribute__((packed)) TRANSACTION2_QPI_RSP;
1685
1686 typedef struct smb_com_transaction2_spi_req {
1687         struct smb_hdr hdr;     /* wct = 15 */
1688         __le16 TotalParameterCount;
1689         __le16 TotalDataCount;
1690         __le16 MaxParameterCount;
1691         __le16 MaxDataCount;
1692         __u8 MaxSetupCount;
1693         __u8 Reserved;
1694         __le16 Flags;
1695         __le32 Timeout;
1696         __u16 Reserved2;
1697         __le16 ParameterCount;
1698         __le16 ParameterOffset;
1699         __le16 DataCount;
1700         __le16 DataOffset;
1701         __u8 SetupCount;
1702         __u8 Reserved3;
1703         __le16 SubCommand;      /* one setup word */
1704         __le16 ByteCount;
1705         __u8 Pad;
1706         __u16 Pad1;
1707         __le16 InformationLevel;
1708         __u32 Reserved4;
1709         char FileName[];
1710 } __attribute__((packed)) TRANSACTION2_SPI_REQ;
1711
1712 typedef struct smb_com_transaction2_spi_rsp {
1713         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1714         struct trans2_resp t2;
1715         __u16 ByteCount;
1716         __u16 Reserved2; /* parameter word is present for infolevels > 100 */
1717 } __attribute__((packed)) TRANSACTION2_SPI_RSP;
1718
1719 struct set_file_rename {
1720         __le32 overwrite;   /* 1 = overwrite dest */
1721         __u32 root_fid;   /* zero */
1722         __le32 target_name_len;
1723         char  target_name[];  /* Must be unicode */
1724 } __attribute__((packed));
1725
1726 struct smb_com_transaction2_sfi_req {
1727         struct smb_hdr hdr;     /* wct = 15 */
1728         __le16 TotalParameterCount;
1729         __le16 TotalDataCount;
1730         __le16 MaxParameterCount;
1731         __le16 MaxDataCount;
1732         __u8 MaxSetupCount;
1733         __u8 Reserved;
1734         __le16 Flags;
1735         __le32 Timeout;
1736         __u16 Reserved2;
1737         __le16 ParameterCount;
1738         __le16 ParameterOffset;
1739         __le16 DataCount;
1740         __le16 DataOffset;
1741         __u8 SetupCount;
1742         __u8 Reserved3;
1743         __le16 SubCommand;      /* one setup word */
1744         __le16 ByteCount;
1745         __u8 Pad;
1746         __u16 Pad1;
1747         __u16 Fid;
1748         __le16 InformationLevel;
1749         __u16 Reserved4;
1750         __u8  payload[];
1751 } __attribute__((packed));
1752
1753 struct smb_com_transaction2_sfi_rsp {
1754         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1755         struct trans2_resp t2;
1756         __u16 ByteCount;
1757         __u16 Reserved2; /* parameter word reserved - present for infolevels > 100 */
1758 } __attribute__((packed));
1759
1760 struct smb_t2_qfi_req {
1761         struct  smb_hdr hdr;
1762         struct  trans2_req t2;
1763         __u8    Pad;
1764         __u16   Fid;
1765         __le16  InformationLevel;
1766 } __attribute__((packed));
1767
1768 struct smb_t2_qfi_rsp {
1769         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1770         struct trans2_resp t2;
1771         __u16 ByteCount;
1772         __u16 Reserved2; /* parameter word reserved - present for infolevels > 100 */
1773 } __attribute__((packed));
1774
1775 /*
1776  * Flags on T2 FINDFIRST and FINDNEXT
1777  */
1778 #define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
1779 #define CIFS_SEARCH_CLOSE_AT_END  0x0002
1780 #define CIFS_SEARCH_RETURN_RESUME 0x0004
1781 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
1782 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010
1783
1784 /*
1785  * Size of the resume key on FINDFIRST and FINDNEXT calls
1786  */
1787 #define CIFS_SMB_RESUME_KEY_SIZE 4
1788
1789 typedef struct smb_com_transaction2_ffirst_req {
1790         struct smb_hdr hdr;     /* wct = 15 */
1791         __le16 TotalParameterCount;
1792         __le16 TotalDataCount;
1793         __le16 MaxParameterCount;
1794         __le16 MaxDataCount;
1795         __u8 MaxSetupCount;
1796         __u8 Reserved;
1797         __le16 Flags;
1798         __le32 Timeout;
1799         __u16 Reserved2;
1800         __le16 ParameterCount;
1801         __le16 ParameterOffset;
1802         __le16 DataCount;
1803         __le16 DataOffset;
1804         __u8 SetupCount;        /* one */
1805         __u8 Reserved3;
1806         __le16 SubCommand;      /* TRANS2_FIND_FIRST */
1807         __le16 ByteCount;
1808         __u8 Pad;
1809         __le16 SearchAttributes;
1810         __le16 SearchCount;
1811         __le16 SearchFlags;
1812         __le16 InformationLevel;
1813         __le32 SearchStorageType;
1814         char FileName[];
1815 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
1816
1817 typedef struct smb_com_transaction2_ffirst_rsp {
1818         struct smb_hdr hdr;     /* wct = 10 */
1819         struct trans2_resp t2;
1820         __u16 ByteCount;
1821 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
1822
1823 typedef struct smb_com_transaction2_ffirst_rsp_parms {
1824         __u16 SearchHandle;
1825         __le16 SearchCount;
1826         __le16 EndofSearch;
1827         __le16 EAErrorOffset;
1828         __le16 LastNameOffset;
1829 } __attribute__((packed)) T2_FFIRST_RSP_PARMS;
1830
1831 typedef struct smb_com_transaction2_fnext_req {
1832         struct smb_hdr hdr;     /* wct = 15 */
1833         __le16 TotalParameterCount;
1834         __le16 TotalDataCount;
1835         __le16 MaxParameterCount;
1836         __le16 MaxDataCount;
1837         __u8 MaxSetupCount;
1838         __u8 Reserved;
1839         __le16 Flags;
1840         __le32 Timeout;
1841         __u16 Reserved2;
1842         __le16 ParameterCount;
1843         __le16 ParameterOffset;
1844         __le16 DataCount;
1845         __le16 DataOffset;
1846         __u8 SetupCount;        /* one */
1847         __u8 Reserved3;
1848         __le16 SubCommand;      /* TRANS2_FIND_NEXT */
1849         __le16 ByteCount;
1850         __u8 Pad;
1851         __u16 SearchHandle;
1852         __le16 SearchCount;
1853         __le16 InformationLevel;
1854         __u32 ResumeKey;
1855         __le16 SearchFlags;
1856         char ResumeFileName[];
1857 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
1858
1859 typedef struct smb_com_transaction2_fnext_rsp {
1860         struct smb_hdr hdr;     /* wct = 10 */
1861         struct trans2_resp t2;
1862         __u16 ByteCount;
1863 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
1864
1865 typedef struct smb_com_transaction2_fnext_rsp_parms {
1866         __le16 SearchCount;
1867         __le16 EndofSearch;
1868         __le16 EAErrorOffset;
1869         __le16 LastNameOffset;
1870 } __attribute__((packed)) T2_FNEXT_RSP_PARMS;
1871
1872 /* QFSInfo Levels */
1873 #define SMB_INFO_ALLOCATION         1
1874 #define SMB_INFO_VOLUME             2
1875 #define SMB_QUERY_FS_VOLUME_INFO    0x102
1876 #define SMB_QUERY_FS_SIZE_INFO      0x103
1877 #define SMB_QUERY_FS_DEVICE_INFO    0x104
1878 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
1879 #define SMB_QUERY_CIFS_UNIX_INFO    0x200
1880 #define SMB_QUERY_POSIX_FS_INFO     0x201
1881 #define SMB_QUERY_POSIX_WHO_AM_I    0x202
1882 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
1883 #define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
1884                                             FILE_SYSTEM__UNIX_INFO to tell
1885                                             whether new NTIOCTL available
1886                                             (0xACE) for WAN friendly SMB
1887                                             operations to be carried */
1888 #define SMB_QUERY_LABEL_INFO        0x3ea
1889 #define SMB_QUERY_FS_QUOTA_INFO     0x3ee
1890 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
1891 #define SMB_QUERY_OBJECTID_INFO     0x3f0
1892
1893 typedef struct smb_com_transaction2_qfsi_req {
1894         struct smb_hdr hdr;     /* wct = 14+ */
1895         __le16 TotalParameterCount;
1896         __le16 TotalDataCount;
1897         __le16 MaxParameterCount;
1898         __le16 MaxDataCount;
1899         __u8 MaxSetupCount;
1900         __u8 Reserved;
1901         __le16 Flags;
1902         __le32 Timeout;
1903         __u16 Reserved2;
1904         __le16 ParameterCount;
1905         __le16 ParameterOffset;
1906         __le16 DataCount;
1907         __le16 DataOffset;
1908         __u8 SetupCount;
1909         __u8 Reserved3;
1910         __le16 SubCommand;      /* one setup word */
1911         __le16 ByteCount;
1912         __u8 Pad;
1913         __le16 InformationLevel;
1914 } __attribute__((packed)) TRANSACTION2_QFSI_REQ;
1915
1916 typedef struct smb_com_transaction_qfsi_rsp {
1917         struct smb_hdr hdr;     /* wct = 10 + SetupCount */
1918         struct trans2_resp t2;
1919         __u16 ByteCount;
1920         __u8 Pad;       /* may be three bytes? *//* followed by data area */
1921 } __attribute__((packed)) TRANSACTION2_QFSI_RSP;
1922
1923 typedef struct whoami_rsp_data { /* Query level 0x202 */
1924         __u32 flags; /* 0 = Authenticated user 1 = GUEST */
1925         __u32 mask; /* which flags bits server understands ie 0x0001 */
1926         __u64 unix_user_id;
1927         __u64 unix_user_gid;
1928         __u32 number_of_supplementary_gids; /* may be zero */
1929         __u32 number_of_sids; /* may be zero */
1930         __u32 length_of_sid_array; /* in bytes - may be zero */
1931         __u32 pad; /* reserved - MBZ */
1932         /* __u64 gid_array[0]; */  /* may be empty */
1933         /* __u8 * psid_list */  /* may be empty */
1934 } __attribute__((packed)) WHOAMI_RSP_DATA;
1935
1936 /* SETFSInfo Levels */
1937 #define SMB_SET_CIFS_UNIX_INFO    0x200
1938 /* level 0x203 is defined above in list of QFS info levels */
1939 /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
1940
1941 /* Level 0x200 request structure follows */
1942 typedef struct smb_com_transaction2_setfsi_req {
1943         struct smb_hdr hdr;     /* wct = 15 */
1944         __le16 TotalParameterCount;
1945         __le16 TotalDataCount;
1946         __le16 MaxParameterCount;
1947         __le16 MaxDataCount;
1948         __u8 MaxSetupCount;
1949         __u8 Reserved;
1950         __le16 Flags;
1951         __le32 Timeout;
1952         __u16 Reserved2;
1953         __le16 ParameterCount;  /* 4 */
1954         __le16 ParameterOffset;
1955         __le16 DataCount;       /* 12 */
1956         __le16 DataOffset;
1957         __u8 SetupCount;        /* one */
1958         __u8 Reserved3;
1959         __le16 SubCommand;      /* TRANS2_SET_FS_INFORMATION */
1960         __le16 ByteCount;
1961         __u8 Pad;
1962         __u16 FileNum;          /* Parameters start. */
1963         __le16 InformationLevel;/* Parameters end. */
1964         __le16 ClientUnixMajor; /* Data start. */
1965         __le16 ClientUnixMinor;
1966         __le64 ClientUnixCap;   /* Data end */
1967 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
1968
1969 /* level 0x203 request structure follows */
1970 typedef struct smb_com_transaction2_setfs_enc_req {
1971         struct smb_hdr hdr;     /* wct = 15 */
1972         __le16 TotalParameterCount;
1973         __le16 TotalDataCount;
1974         __le16 MaxParameterCount;
1975         __le16 MaxDataCount;
1976         __u8 MaxSetupCount;
1977         __u8 Reserved;
1978         __le16 Flags;
1979         __le32 Timeout;
1980         __u16 Reserved2;
1981         __le16 ParameterCount;  /* 4 */
1982         __le16 ParameterOffset;
1983         __le16 DataCount;       /* 12 */
1984         __le16 DataOffset;
1985         __u8 SetupCount;        /* one */
1986         __u8 Reserved3;
1987         __le16 SubCommand;      /* TRANS2_SET_FS_INFORMATION */
1988         __le16 ByteCount;
1989         __u8 Pad;
1990         __u16  Reserved4;       /* Parameters start. */
1991         __le16 InformationLevel;/* Parameters end. */
1992         /* NTLMSSP Blob, Data start. */
1993 } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
1994
1995 /* response for setfsinfo levels 0x200 and 0x203 */
1996 typedef struct smb_com_transaction2_setfsi_rsp {
1997         struct smb_hdr hdr;     /* wct = 10 */
1998         struct trans2_resp t2;
1999         __u16 ByteCount;
2000 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
2001
2002 typedef struct smb_com_transaction2_get_dfs_refer_req {
2003         struct smb_hdr hdr;     /* wct = 15 */
2004         __le16 TotalParameterCount;
2005         __le16 TotalDataCount;
2006         __le16 MaxParameterCount;
2007         __le16 MaxDataCount;
2008         __u8 MaxSetupCount;
2009         __u8 Reserved;
2010         __le16 Flags;
2011         __le32 Timeout;
2012         __u16 Reserved2;
2013         __le16 ParameterCount;
2014         __le16 ParameterOffset;
2015         __le16 DataCount;
2016         __le16 DataOffset;
2017         __u8 SetupCount;
2018         __u8 Reserved3;
2019         __le16 SubCommand;      /* one setup word */
2020         __le16 ByteCount;
2021         __u8 Pad[3];            /* Win2K has sent 0x0F01 (max response length
2022                                    perhaps?) followed by one byte pad - doesn't
2023                                    seem to matter though */
2024         __le16 MaxReferralLevel;
2025         char RequestFileName[];
2026 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
2027
2028 #define DFS_VERSION cpu_to_le16(0x0003)
2029
2030 /* DFS server target type */
2031 #define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
2032 #define DFS_TYPE_ROOT 0x0001
2033
2034 /* Referral Entry Flags */
2035 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
2036 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
2037
2038 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
2039         __le16 VersionNumber;  /* must be 3 or 4 */
2040         __le16 Size;
2041         __le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
2042         __le16 ReferralEntryFlags;
2043         __le32 TimeToLive;
2044         __le16 DfsPathOffset;
2045         __le16 DfsAlternatePathOffset;
2046         __le16 NetworkAddressOffset; /* offset of the link target */
2047         __u8   ServiceSiteGuid[16];  /* MBZ, ignored */
2048 } __attribute__((packed)) REFERRAL3;
2049
2050 struct get_dfs_referral_rsp {
2051         __le16 PathConsumed;
2052         __le16 NumberOfReferrals;
2053         __le32 DFSFlags;
2054         REFERRAL3 referrals[];  /* array of level 3 dfs_referral structures */
2055         /* followed by the strings pointed to by the referral structures */
2056 } __packed;
2057
2058 typedef struct smb_com_transaction_get_dfs_refer_rsp {
2059         struct smb_hdr hdr;     /* wct = 10 */
2060         struct trans2_resp t2;
2061         __u16 ByteCount;
2062         __u8 Pad;
2063         struct get_dfs_referral_rsp dfs_data;
2064 } __packed TRANSACTION2_GET_DFS_REFER_RSP;
2065
2066 /* DFS Flags */
2067 #define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
2068 #define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
2069 #define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
2070
2071 /*
2072  ************************************************************************
2073  * All structs for everything above the SMB PDUs themselves
2074  * (such as the T2 level specific data) go here
2075  ************************************************************************
2076  */
2077
2078 /*
2079  * Information on a server
2080  */
2081
2082 struct serverInfo {
2083         char name[16];
2084         unsigned char versionMajor;
2085         unsigned char versionMinor;
2086         unsigned long type;
2087         unsigned int commentOffset;
2088 } __attribute__((packed));
2089
2090 /*
2091  * The following structure is the format of the data returned on a NetShareEnum
2092  * with level "90" (x5A)
2093  */
2094
2095 struct shareInfo {
2096         char shareName[13];
2097         char pad;
2098         unsigned short type;
2099         unsigned int commentOffset;
2100 } __attribute__((packed));
2101
2102 struct aliasInfo {
2103         char aliasName[9];
2104         char pad;
2105         unsigned int commentOffset;
2106         unsigned char type[2];
2107 } __attribute__((packed));
2108
2109 struct aliasInfo92 {
2110         int aliasNameOffset;
2111         int serverNameOffset;
2112         int shareNameOffset;
2113 } __attribute__((packed));
2114
2115 typedef struct {
2116         __le64 TotalAllocationUnits;
2117         __le64 FreeAllocationUnits;
2118         __le32 SectorsPerAllocationUnit;
2119         __le32 BytesPerSector;
2120 } __attribute__((packed)) FILE_SYSTEM_INFO;     /* size info, level 0x103 */
2121
2122 typedef struct {
2123         __le32 fsid;
2124         __le32 SectorsPerAllocationUnit;
2125         __le32 TotalAllocationUnits;
2126         __le32 FreeAllocationUnits;
2127         __le16  BytesPerSector;
2128 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
2129
2130 typedef struct {
2131         __le16 MajorVersionNumber;
2132         __le16 MinorVersionNumber;
2133         __le64 Capability;
2134 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
2135
2136 /* Version numbers for CIFS UNIX major and minor. */
2137 #define CIFS_UNIX_MAJOR_VERSION 1
2138 #define CIFS_UNIX_MINOR_VERSION 0
2139
2140 /* Linux/Unix extensions capability flags */
2141 #define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
2142 #define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
2143 #define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
2144 #define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
2145 #define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
2146 #define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
2147                                                       calls including posix open
2148                                                       and posix unlink */
2149 #define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up to 0xFFFF00 */
2150 #define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
2151 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
2152 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
2153 #define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and QFS PROXY call */
2154 #ifdef CONFIG_CIFS_POSIX
2155 /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
2156    LockingX instead of posix locking call on unix sess (and we do not expect
2157    LockingX to use different (ie Windows) semantics than posix locking on
2158    the same session (if WINE needs to do this later, we can add this cap
2159    back in later */
2160 /* #define CIFS_UNIX_CAP_MASK              0x000000fb */
2161 #define CIFS_UNIX_CAP_MASK              0x000003db
2162 #else
2163 #define CIFS_UNIX_CAP_MASK              0x00000013
2164 #endif /* CONFIG_CIFS_POSIX */
2165
2166
2167 #define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
2168
2169 typedef struct {
2170         /* For undefined recommended transfer size return -1 in that field */
2171         __le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
2172         __le32 BlockSize;
2173     /* The next three fields are in terms of the block size.
2174         (above). If block size is unknown, 4096 would be a
2175         reasonable block size for a server to report.
2176         Note that returning the blocks/blocksavail removes need
2177         to make a second call (to QFSInfo level 0x103 to get this info.
2178         UserBlockAvail is typically less than or equal to BlocksAvail,
2179         if no distinction is made return the same value in each */
2180         __le64 TotalBlocks;
2181         __le64 BlocksAvail;       /* bfree */
2182         __le64 UserBlocksAvail;   /* bavail */
2183     /* For undefined Node fields or FSID return -1 */
2184         __le64 TotalFileNodes;
2185         __le64 FreeFileNodes;
2186         __le64 FileSysIdentifier;   /* fsid */
2187         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
2188         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
2189 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
2190
2191 /* DeviceType Flags */
2192 #define FILE_DEVICE_CD_ROM              0x00000002
2193 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
2194 #define FILE_DEVICE_DFS                 0x00000006
2195 #define FILE_DEVICE_DISK                0x00000007
2196 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
2197 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
2198 #define FILE_DEVICE_NAMED_PIPE          0x00000011
2199 #define FILE_DEVICE_NETWORK             0x00000012
2200 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
2201 #define FILE_DEVICE_NULL                0x00000015
2202 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
2203 #define FILE_DEVICE_PRINTER             0x00000018
2204 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
2205 #define FILE_DEVICE_STREAMS             0x0000001e
2206 #define FILE_DEVICE_TAPE                0x0000001f
2207 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
2208 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
2209 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
2210
2211 /* Device Characteristics */
2212 #define FILE_REMOVABLE_MEDIA                    0x00000001
2213 #define FILE_READ_ONLY_DEVICE                   0x00000002
2214 #define FILE_FLOPPY_DISKETTE                    0x00000004
2215 #define FILE_WRITE_ONCE_MEDIA                   0x00000008
2216 #define FILE_REMOTE_DEVICE                      0x00000010
2217 #define FILE_DEVICE_IS_MOUNTED                  0x00000020
2218 #define FILE_VIRTUAL_VOLUME                     0x00000040
2219 #define FILE_DEVICE_SECURE_OPEN                 0x00000100
2220 #define FILE_CHARACTERISTIC_TS_DEVICE           0x00001000
2221 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE       0x00002000
2222 #define FILE_PORTABLE_DEVICE                    0x00004000
2223 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
2224
2225 typedef struct {
2226         __le32 DeviceType;
2227         __le32 DeviceCharacteristics;
2228 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
2229
2230 /* minimum includes first three fields, and empty FS Name */
2231 #define MIN_FS_ATTR_INFO_SIZE 12
2232
2233
2234 /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
2235 #define FILE_SUPPORTS_SPARSE_VDL        0x10000000 /* faster nonsparse extend */
2236 #define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */
2237 #define FILE_SUPPORT_INTEGRITY_STREAMS  0x04000000
2238 #define FILE_SUPPORTS_USN_JOURNAL       0x02000000
2239 #define FILE_SUPPORTS_OPEN_BY_FILE_ID   0x01000000
2240 #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
2241 #define FILE_SUPPORTS_HARD_LINKS        0x00400000
2242 #define FILE_SUPPORTS_TRANSACTIONS      0x00200000
2243 #define FILE_SEQUENTIAL_WRITE_ONCE      0x00100000
2244 #define FILE_READ_ONLY_VOLUME           0x00080000
2245 #define FILE_NAMED_STREAMS              0x00040000
2246 #define FILE_SUPPORTS_ENCRYPTION        0x00020000
2247 #define FILE_SUPPORTS_OBJECT_IDS        0x00010000
2248 #define FILE_VOLUME_IS_COMPRESSED       0x00008000
2249 #define FILE_SUPPORTS_REMOTE_STORAGE    0x00000100
2250 #define FILE_SUPPORTS_REPARSE_POINTS    0x00000080
2251 #define FILE_SUPPORTS_SPARSE_FILES      0x00000040
2252 #define FILE_VOLUME_QUOTAS              0x00000020
2253 #define FILE_FILE_COMPRESSION           0x00000010
2254 #define FILE_PERSISTENT_ACLS            0x00000008
2255 #define FILE_UNICODE_ON_DISK            0x00000004
2256 #define FILE_CASE_PRESERVED_NAMES       0x00000002
2257 #define FILE_CASE_SENSITIVE_SEARCH      0x00000001
2258 typedef struct {
2259         __le32 Attributes;
2260         __le32 MaxPathNameComponentLength;
2261         __le32 FileSystemNameLen;
2262         char FileSystemName[52]; /* do not have to save this - get subset? */
2263 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
2264
2265 /******************************************************************************/
2266 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
2267 /******************************************************************************/
2268 typedef struct { /* data block encoding of response to level 263 QPathInfo */
2269         struct_group_attr(common_attributes, __packed,
2270                 __le64 CreationTime;
2271                 __le64 LastAccessTime;
2272                 __le64 LastWriteTime;
2273                 __le64 ChangeTime;
2274                 __le32 Attributes;
2275         );
2276         __u32 Pad1;
2277         __le64 AllocationSize;
2278         __le64 EndOfFile;       /* size ie offset to first free byte in file */
2279         __le32 NumberOfLinks;   /* hard links */
2280         __u8 DeletePending;
2281         __u8 Directory;
2282         __u16 Pad2;
2283         __le64 IndexNumber;
2284         __le32 EASize;
2285         __le32 AccessFlags;
2286         __u64 IndexNumber1;
2287         __le64 CurrentByteOffset;
2288         __le32 Mode;
2289         __le32 AlignmentRequirement;
2290         __le32 FileNameLength;
2291         union {
2292                 char __pad;
2293                 DECLARE_FLEX_ARRAY(char, FileName);
2294         };
2295 } __attribute__((packed)) FILE_ALL_INFO;        /* level 0x107 QPathInfo */
2296
2297 typedef struct {
2298         __le64 AllocationSize;
2299         __le64 EndOfFile;       /* size ie offset to first free byte in file */
2300         __le32 NumberOfLinks;   /* hard links */
2301         __u8 DeletePending;
2302         __u8 Directory;
2303         __u16 Pad;
2304 } __attribute__((packed)) FILE_STANDARD_INFO;   /* level 0x102 QPathInfo */
2305
2306
2307 /* defines for enumerating possible values of the Unix type field below */
2308 #define UNIX_FILE      0
2309 #define UNIX_DIR       1
2310 #define UNIX_SYMLINK   2
2311 #define UNIX_CHARDEV   3
2312 #define UNIX_BLOCKDEV  4
2313 #define UNIX_FIFO      5
2314 #define UNIX_SOCKET    6
2315 typedef struct {
2316         __le64 EndOfFile;
2317         __le64 NumOfBytes;
2318         __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
2319         __le64 LastAccessTime;
2320         __le64 LastModificationTime;
2321         __le64 Uid;
2322         __le64 Gid;
2323         __le32 Type;
2324         __le64 DevMajor;
2325         __le64 DevMinor;
2326         __le64 UniqueId;
2327         __le64 Permissions;
2328         __le64 Nlinks;
2329 } __attribute__((packed)) FILE_UNIX_BASIC_INFO; /* level 0x200 QPathInfo */
2330
2331 typedef struct {
2332         DECLARE_FLEX_ARRAY(char, LinkDest);
2333 } __attribute__((packed)) FILE_UNIX_LINK_INFO;  /* level 0x201 QPathInfo */
2334
2335 /* The following three structures are needed only for
2336         setting time to NT4 and some older servers via
2337         the primitive DOS time format */
2338 typedef struct {
2339         __u16 Day:5;
2340         __u16 Month:4;
2341         __u16 Year:7;
2342 } __attribute__((packed)) SMB_DATE;
2343
2344 typedef struct {
2345         __u16 TwoSeconds:5;
2346         __u16 Minutes:6;
2347         __u16 Hours:5;
2348 } __attribute__((packed)) SMB_TIME;
2349
2350 typedef struct {
2351         __le16 CreationDate; /* SMB Date see above */
2352         __le16 CreationTime; /* SMB Time */
2353         __le16 LastAccessDate;
2354         __le16 LastAccessTime;
2355         __le16 LastWriteDate;
2356         __le16 LastWriteTime;
2357         __le32 DataSize; /* File Size (EOF) */
2358         __le32 AllocationSize;
2359         __le16 Attributes; /* verify not u32 */
2360         __le32 EASize;
2361 } __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
2362
2363 typedef struct {
2364         __le64 CreationTime;
2365         __le64 LastAccessTime;
2366         __le64 LastWriteTime;
2367         __le64 ChangeTime;
2368         __le32 Attributes;
2369         __u32 Pad;
2370 } __attribute__((packed)) FILE_BASIC_INFO;      /* size info, level 0x101 */
2371
2372 struct file_allocation_info {
2373         __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
2374 } __packed; /* size used on disk, for level 0x103 for set, 0x105 for query */
2375
2376 struct file_end_of_file_info {
2377         __le64 FileSize;                /* offset to end of file */
2378 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
2379
2380 struct file_alt_name_info {
2381         DECLARE_FLEX_ARRAY(__u8, alt_name);
2382 } __attribute__((packed));      /* level 0x0108 */
2383
2384 struct file_stream_info {
2385         __le32 number_of_streams;  /* BB check sizes and verify location */
2386         /* followed by info on streams themselves
2387                 u64 size;
2388                 u64 allocation_size
2389                 stream info */
2390 };      /* level 0x109 */
2391
2392 struct file_compression_info {
2393         __le64 compressed_size;
2394         __le16 format;
2395         __u8   unit_shift;
2396         __u8   ch_shift;
2397         __u8   cl_shift;
2398         __u8   pad[3];
2399 } __attribute__((packed));      /* level 0x10b */
2400
2401 /* POSIX ACL set/query path info structures */
2402 #define CIFS_ACL_VERSION 1
2403 struct cifs_posix_ace { /* access control entry (ACE) */
2404         __u8  cifs_e_tag;
2405         __u8  cifs_e_perm;
2406         __le64 cifs_uid; /* or gid */
2407 } __attribute__((packed));
2408
2409 struct cifs_posix_acl { /* access control list  (ACL) */
2410         __le16  version;
2411         __le16  access_entry_count;  /* access ACL - count of entries */
2412         __le16  default_entry_count; /* default ACL - count of entries */
2413         struct cifs_posix_ace ace_array[];
2414         /* followed by struct cifs_posix_ace default_ace_array[] */
2415 } __attribute__((packed));  /* level 0x204 */
2416
2417 /* types of access control entries already defined in posix_acl.h */
2418 /* #define CIFS_POSIX_ACL_USER_OBJ       0x01
2419 #define CIFS_POSIX_ACL_USER      0x02
2420 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04
2421 #define CIFS_POSIX_ACL_GROUP     0x08
2422 #define CIFS_POSIX_ACL_MASK      0x10
2423 #define CIFS_POSIX_ACL_OTHER     0x20 */
2424
2425 /* types of perms */
2426 /* #define CIFS_POSIX_ACL_EXECUTE   0x01
2427 #define CIFS_POSIX_ACL_WRITE     0x02
2428 #define CIFS_POSIX_ACL_READ          0x04 */
2429
2430 /* end of POSIX ACL definitions */
2431
2432 /* POSIX Open Flags */
2433 #define SMB_O_RDONLY    0x1
2434 #define SMB_O_WRONLY    0x2
2435 #define SMB_O_RDWR      0x4
2436 #define SMB_O_CREAT     0x10
2437 #define SMB_O_EXCL      0x20
2438 #define SMB_O_TRUNC     0x40
2439 #define SMB_O_APPEND    0x80
2440 #define SMB_O_SYNC      0x100
2441 #define SMB_O_DIRECTORY 0x200
2442 #define SMB_O_NOFOLLOW  0x400
2443 #define SMB_O_DIRECT    0x800
2444
2445 typedef struct {
2446         __le32 OpenFlags; /* same as NT CreateX */
2447         __le32 PosixOpenFlags;
2448         __le64 Permissions;
2449         __le16 Level; /* reply level requested (see QPathInfo levels) */
2450 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
2451
2452 typedef struct {
2453         __le16 OplockFlags;
2454         __u16 Fid;
2455         __le32 CreateAction;
2456         __le16 ReturnedLevel;
2457         __le16 Pad;
2458         /* struct following varies based on requested level */
2459 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
2460
2461 #define SMB_POSIX_UNLINK_FILE_TARGET            0
2462 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET       1
2463
2464 struct unlink_psx_rq { /* level 0x20a SetPathInfo */
2465         __le16 type;
2466 } __attribute__((packed));
2467
2468 struct file_internal_info {
2469         __le64  UniqueId; /* inode number */
2470 } __attribute__((packed));      /* level 0x3ee */
2471
2472 struct file_mode_info {
2473         __le32  Mode;
2474 } __attribute__((packed));      /* level 0x3f8 */
2475
2476 struct file_attrib_tag {
2477         __le32 Attribute;
2478         __le32 ReparseTag;
2479 } __attribute__((packed));      /* level 0x40b */
2480
2481
2482 /********************************************************/
2483 /*  FindFirst/FindNext transact2 data buffer formats    */
2484 /********************************************************/
2485
2486 typedef struct {
2487         __le32 NextEntryOffset;
2488         __u32 ResumeKey; /* as with FileIndex - no need to convert */
2489         FILE_UNIX_BASIC_INFO basic;
2490         union {
2491                 char __pad;
2492                 DECLARE_FLEX_ARRAY(char, FileName);
2493         };
2494 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
2495
2496 typedef struct {
2497         __le32 NextEntryOffset;
2498         __u32 FileIndex;
2499         __le64 CreationTime;
2500         __le64 LastAccessTime;
2501         __le64 LastWriteTime;
2502         __le64 ChangeTime;
2503         __le64 EndOfFile;
2504         __le64 AllocationSize;
2505         __le32 ExtFileAttributes;
2506         __le32 FileNameLength;
2507         char FileName[];
2508 } __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
2509
2510 typedef struct {
2511         __le32 NextEntryOffset;
2512         __u32 FileIndex;
2513         __le64 CreationTime;
2514         __le64 LastAccessTime;
2515         __le64 LastWriteTime;
2516         __le64 ChangeTime;
2517         __le64 EndOfFile;
2518         __le64 AllocationSize;
2519         __le32 ExtFileAttributes;
2520         __le32 FileNameLength;
2521         __le32 EaSize; /* length of the xattrs */
2522         char FileName[];
2523 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
2524
2525 typedef struct {
2526         __le32 NextEntryOffset;
2527         __u32 FileIndex;
2528         __le64 CreationTime;
2529         __le64 LastAccessTime;
2530         __le64 LastWriteTime;
2531         __le64 ChangeTime;
2532         __le64 EndOfFile;
2533         __le64 AllocationSize;
2534         __le32 ExtFileAttributes;
2535         __le32 FileNameLength;
2536         __le32 EaSize; /* EA size */
2537         __le32 Reserved;
2538         __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
2539         char FileName[];
2540 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
2541
2542 typedef struct {
2543         __le32 NextEntryOffset;
2544         __u32 FileIndex;
2545         __le64 CreationTime;
2546         __le64 LastAccessTime;
2547         __le64 LastWriteTime;
2548         __le64 ChangeTime;
2549         __le64 EndOfFile;
2550         __le64 AllocationSize;
2551         __le32 ExtFileAttributes;
2552         __le32 FileNameLength;
2553         __le32 EaSize; /* length of the xattrs */
2554         __u8   ShortNameLength;
2555         __u8   Reserved;
2556         __u8   ShortName[24];
2557         char FileName[];
2558 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
2559
2560 typedef struct {
2561         __u32  ResumeKey;
2562         __le16 CreationDate; /* SMB Date */
2563         __le16 CreationTime; /* SMB Time */
2564         __le16 LastAccessDate;
2565         __le16 LastAccessTime;
2566         __le16 LastWriteDate;
2567         __le16 LastWriteTime;
2568         __le32 DataSize; /* File Size (EOF) */
2569         __le32 AllocationSize;
2570         __le16 Attributes; /* verify not u32 */
2571         __u8   FileNameLength;
2572         char FileName[];
2573 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
2574
2575
2576 struct fea {
2577         unsigned char EA_flags;
2578         __u8 name_len;
2579         __le16 value_len;
2580         char name[];
2581         /* optionally followed by value */
2582 } __attribute__((packed));
2583 /* flags for _FEA.fEA */
2584 #define FEA_NEEDEA         0x80 /* need EA bit */
2585
2586 struct fealist {
2587         __le32 list_len;
2588         struct fea list;
2589 } __attribute__((packed));
2590
2591 /* used to hold an arbitrary blob of data */
2592 struct data_blob {
2593         __u8 *data;
2594         size_t length;
2595         void (*free) (struct data_blob *data_blob);
2596 } __attribute__((packed));
2597
2598
2599 #ifdef CONFIG_CIFS_POSIX
2600 /*
2601         For better POSIX semantics from Linux client, (even better
2602         than the existing CIFS Unix Extensions) we need updated PDUs for:
2603
2604         1) PosixCreateX - to set and return the mode, inode#, device info and
2605         perhaps add a CreateDevice - to create Pipes and other special .inodes
2606         Also note POSIX open flags
2607         2) Close - to return the last write time to do cache across close
2608                 more safely
2609         3) FindFirst return unique inode number - what about resume key, two
2610         forms short (matches readdir) and full (enough info to cache inodes)
2611         4) Mkdir - set mode
2612
2613         And under consideration:
2614         5) FindClose2 (return nanosecond timestamp ??)
2615         6) Use nanosecond timestamps throughout all time fields if
2616            corresponding attribute flag is set
2617         7) sendfile - handle based copy
2618
2619         what about fixing 64 bit alignment
2620
2621         There are also various legacy SMB/CIFS requests used as is
2622
2623         From existing Lanman and NTLM dialects:
2624         --------------------------------------
2625         NEGOTIATE
2626         SESSION_SETUP_ANDX (BB which?)
2627         TREE_CONNECT_ANDX (BB which wct?)
2628         TREE_DISCONNECT (BB add volume timestamp on response)
2629         LOGOFF_ANDX
2630         DELETE (note delete open file behavior)
2631         DELETE_DIRECTORY
2632         READ_AND_X
2633         WRITE_AND_X
2634         LOCKING_AND_X (note posix lock semantics)
2635         RENAME (note rename across dirs and open file rename posix behaviors)
2636         NT_RENAME (for hardlinks) Is this good enough for all features?
2637         FIND_CLOSE2
2638         TRANSACTION2 (18 cases)
2639                 SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
2640                 (BB verify that never need to set allocation size)
2641                 SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
2642                          Unix ext?)
2643
2644         COPY (note support for copy across directories) - FUTURE, OPTIONAL
2645         setting/getting OS/2 EAs - FUTURE (BB can this handle
2646         setting Linux xattrs perfectly)         - OPTIONAL
2647         dnotify                                 - FUTURE, OPTIONAL
2648         quota                                   - FUTURE, OPTIONAL
2649
2650         Note that various requests implemented for NT interop such as
2651                 NT_TRANSACT (IOCTL) QueryReparseInfo
2652         are unneeded to servers compliant with the CIFS POSIX extensions
2653
2654         From CIFS Unix Extensions:
2655         -------------------------
2656         T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
2657         T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
2658         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
2659         T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)  BB check for missing
2660                                                         inode fields
2661                                 Actually a need QUERY_FILE_UNIX_INFO
2662                                 since has inode num
2663                                 BB what about a) blksize/blkbits/blocks
2664                                                           b) i_version
2665                                                           c) i_rdev
2666                                                           d) notify mask?
2667                                                           e) generation
2668                                                           f) size_seqcount
2669         T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
2670         TRANS2_GET_DFS_REFERRAL               - OPTIONAL but recommended
2671         T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
2672  */
2673
2674 /* xsymlink is a symlink format (used by MacOS) that can be used
2675    to save symlink info in a regular file when
2676    mounted to operating systems that do not
2677    support the cifs Unix extensions or EAs (for xattr
2678    based symlinks).  For such a file to be recognized
2679    as containing symlink data:
2680
2681    1) file size must be 1067,
2682    2) signature must begin file data,
2683    3) length field must be set to ASCII representation
2684         of a number which is less than or equal to 1024,
2685    4) md5 must match that of the path data */
2686
2687 struct xsymlink {
2688         /* 1067 bytes */
2689         char signature[4]; /* XSym */ /* not null terminated */
2690         char cr0;         /* \n */
2691 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */
2692         char length[4];
2693         char cr1;         /* \n */
2694 /* md5 of valid subset of path ie path[0] through path[length-1] */
2695         __u8 md5[32];
2696         char cr2;        /* \n */
2697 /* if room left, then end with \n then 0x20s by convention but not required */
2698         char path[1024];
2699 } __attribute__((packed));
2700
2701 typedef struct file_xattr_info {
2702         /* BB do we need another field for flags? BB */
2703         __u32 xattr_name_len;
2704         __u32 xattr_value_len;
2705         char  xattr_name[];
2706         /* followed by xattr_value[xattr_value_len], no pad */
2707 } __packed FILE_XATTR_INFO; /* extended attribute info level 0x205 */
2708
2709 /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
2710
2711 typedef struct file_chattr_info {
2712         __le64  mask; /* list of all possible attribute bits */
2713         __le64  mode; /* list of actual attribute bits on this inode */
2714 } __packed FILE_CHATTR_INFO;  /* ext attributes (chattr, chflags) level 0x206 */
2715 #endif                          /* POSIX */
2716 #endif                          /* _CIFSPDU_H */