fs/cifs/smb2pdu.h

   1 /*
   2  *   fs/cifs/smb2pdu.h
   3  *
   4  *   Copyright (c) International Business Machines  Corp., 2009, 2010
   5  *                 Etersoft, 2012
   6  *   Author(s): Steve French (sfrench@us.ibm.com)
   7  *              Pavel Shilovsky (pshilovsky@samba.org) 2012
   8  *
   9  *   This library is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU Lesser General Public License as published
  11  *   by the Free Software Foundation; either version 2.1 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This library is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  17  *   the GNU Lesser General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU Lesser General Public License
  20  *   along with this library; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22  */
  23
  24 #ifndef _SMB2PDU_H
  25 #define _SMB2PDU_H
  26
  27 #include <net/sock.h>
  28
  29 /*
  30  * Note that, due to trying to use names similar to the protocol specifications,
  31  * there are many mixed case field names in the structures below.  Although
  32  * this does not match typical Linux kernel style, it is necessary to be
  33  * be able to match against the protocol specfication.
  34  *
  35  * SMB2 commands
  36  * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
  37  * (ie no useful data other than the SMB error code itself) and are marked such.
  38  * Knowing this helps avoid response buffer allocations and copy in some cases.
  39  */
  40
  41 /* List of commands in host endian */
  42 #define SMB2_NEGOTIATE_HE       0x0000
  43 #define SMB2_SESSION_SETUP_HE   0x0001
  44 #define SMB2_LOGOFF_HE          0x0002 /* trivial request/resp */
  45 #define SMB2_TREE_CONNECT_HE    0x0003
  46 #define SMB2_TREE_DISCONNECT_HE 0x0004 /* trivial req/resp */
  47 #define SMB2_CREATE_HE          0x0005
  48 #define SMB2_CLOSE_HE           0x0006
  49 #define SMB2_FLUSH_HE           0x0007 /* trivial resp */
  50 #define SMB2_READ_HE            0x0008
  51 #define SMB2_WRITE_HE           0x0009
  52 #define SMB2_LOCK_HE            0x000A
  53 #define SMB2_IOCTL_HE           0x000B
  54 #define SMB2_CANCEL_HE          0x000C
  55 #define SMB2_ECHO_HE            0x000D
  56 #define SMB2_QUERY_DIRECTORY_HE 0x000E
  57 #define SMB2_CHANGE_NOTIFY_HE   0x000F
  58 #define SMB2_QUERY_INFO_HE      0x0010
  59 #define SMB2_SET_INFO_HE        0x0011
  60 #define SMB2_OPLOCK_BREAK_HE    0x0012
  61
  62 /* The same list in little endian */
  63 #define SMB2_NEGOTIATE          cpu_to_le16(SMB2_NEGOTIATE_HE)
  64 #define SMB2_SESSION_SETUP      cpu_to_le16(SMB2_SESSION_SETUP_HE)
  65 #define SMB2_LOGOFF             cpu_to_le16(SMB2_LOGOFF_HE)
  66 #define SMB2_TREE_CONNECT       cpu_to_le16(SMB2_TREE_CONNECT_HE)
  67 #define SMB2_TREE_DISCONNECT    cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
  68 #define SMB2_CREATE             cpu_to_le16(SMB2_CREATE_HE)
  69 #define SMB2_CLOSE              cpu_to_le16(SMB2_CLOSE_HE)
  70 #define SMB2_FLUSH              cpu_to_le16(SMB2_FLUSH_HE)
  71 #define SMB2_READ               cpu_to_le16(SMB2_READ_HE)
  72 #define SMB2_WRITE              cpu_to_le16(SMB2_WRITE_HE)
  73 #define SMB2_LOCK               cpu_to_le16(SMB2_LOCK_HE)
  74 #define SMB2_IOCTL              cpu_to_le16(SMB2_IOCTL_HE)
  75 #define SMB2_CANCEL             cpu_to_le16(SMB2_CANCEL_HE)
  76 #define SMB2_ECHO               cpu_to_le16(SMB2_ECHO_HE)
  77 #define SMB2_QUERY_DIRECTORY    cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
  78 #define SMB2_CHANGE_NOTIFY      cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
  79 #define SMB2_QUERY_INFO         cpu_to_le16(SMB2_QUERY_INFO_HE)
  80 #define SMB2_SET_INFO           cpu_to_le16(SMB2_SET_INFO_HE)
  81 #define SMB2_OPLOCK_BREAK       cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
  82
  83 #define NUMBER_OF_SMB2_COMMANDS 0x0013
  84
  85 /* BB FIXME - analyze following length BB */
  86 #define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
  87
  88 #define SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe)
  89
  90 /*
  91  * SMB2 Header Definition
  92  *
  93  * "MBZ" :  Must be Zero
  94  * "BB"  :  BugBug, Something to check/review/analyze later
  95  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
  96  *
  97  */
  98
  99 #define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64)
 100
 101 struct smb2_hdr {
 102         __be32 smb2_buf_length; /* big endian on wire */
 103                                 /* length is only two or three bytes - with
 104                                  one or two byte type preceding it that MBZ */
 105         __u8   ProtocolId[4];   /* 0xFE 'S' 'M' 'B' */
 106         __le16 StructureSize;   /* 64 */
 107         __le16 CreditCharge;    /* MBZ */
 108         __le32 Status;          /* Error from server */
 109         __le16 Command;
 110         __le16 CreditRequest;  /* CreditResponse */
 111         __le32 Flags;
 112         __le32 NextCommand;
 113         __u64  MessageId;       /* opaque - so can stay little endian */
 114         __le32 ProcessId;
 115         __u32  TreeId;          /* opaque - so do not make little endian */
 116         __u64  SessionId;       /* opaque - so do not make little endian */
 117         __u8   Signature[16];
 118 } __packed;
 119
 120 struct smb2_pdu {
 121         struct smb2_hdr hdr;
 122         __le16 StructureSize2; /* size of wct area (varies, request specific) */
 123 } __packed;
 124
 125 /*
 126  *      SMB2 flag definitions
 127  */
 128 #define SMB2_FLAGS_SERVER_TO_REDIR      __constant_cpu_to_le32(0x00000001)
 129 #define SMB2_FLAGS_ASYNC_COMMAND        __constant_cpu_to_le32(0x00000002)
 130 #define SMB2_FLAGS_RELATED_OPERATIONS   __constant_cpu_to_le32(0x00000004)
 131 #define SMB2_FLAGS_SIGNED               __constant_cpu_to_le32(0x00000008)
 132 #define SMB2_FLAGS_DFS_OPERATIONS       __constant_cpu_to_le32(0x10000000)
 133
 134 /*
 135  *      Definitions for SMB2 Protocol Data Units (network frames)
 136  *
 137  *  See MS-SMB2.PDF specification for protocol details.
 138  *  The Naming convention is the lower case version of the SMB2
 139  *  command code name for the struct. Note that structures must be packed.
 140  *
 141  */
 142
 143 #define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9)
 144
 145 struct smb2_err_rsp {
 146         struct smb2_hdr hdr;
 147         __le16 StructureSize;
 148         __le16 Reserved; /* MBZ */
 149         __le32 ByteCount;  /* even if zero, at least one byte follows */
 150         __u8   ErrorData[1];  /* variable length */
 151 } __packed;
 152
 153 struct smb2_negotiate_req {
 154         struct smb2_hdr hdr;
 155         __le16 StructureSize; /* Must be 36 */
 156         __le16 DialectCount;
 157         __le16 SecurityMode;
 158         __le16 Reserved;        /* MBZ */
 159         __le32 Capabilities;
 160         __u8   ClientGUID[16];  /* MBZ */
 161         __le64 ClientStartTime; /* MBZ */
 162         __le16 Dialects[2]; /* variable length */
 163 } __packed;
 164
 165 /* SecurityMode flags */
 166 #define SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
 167 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
 168 /* Capabilities flags */
 169 #define SMB2_GLOBAL_CAP_DFS             0x00000001
 170 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
 171 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
 172 /* Internal types */
 173 #define SMB2_NT_FIND                    0x00100000
 174 #define SMB2_LARGE_FILES                0x00200000
 175
 176 struct smb2_negotiate_rsp {
 177         struct smb2_hdr hdr;
 178         __le16 StructureSize;   /* Must be 65 */
 179         __le16 SecurityMode;
 180         __le16 DialectRevision;
 181         __le16 Reserved;        /* MBZ */
 182         __u8   ServerGUID[16];
 183         __le32 Capabilities;
 184         __le32 MaxTransactSize;
 185         __le32 MaxReadSize;
 186         __le32 MaxWriteSize;
 187         __le64 SystemTime;      /* MBZ */
 188         __le64 ServerStartTime;
 189         __le16 SecurityBufferOffset;
 190         __le16 SecurityBufferLength;
 191         __le32 Reserved2;       /* may be any value, ignore */
 192         __u8   Buffer[1];       /* variable length GSS security buffer */
 193 } __packed;
 194
 195 struct smb2_sess_setup_req {
 196         struct smb2_hdr hdr;
 197         __le16 StructureSize; /* Must be 25 */
 198         __u8   VcNumber;
 199         __u8   SecurityMode;
 200         __le32 Capabilities;
 201         __le32 Channel;
 202         __le16 SecurityBufferOffset;
 203         __le16 SecurityBufferLength;
 204         __le64 PreviousSessionId;
 205         __u8   Buffer[1];       /* variable length GSS security buffer */
 206 } __packed;
 207
 208 /* Currently defined SessionFlags */
 209 #define SMB2_SESSION_FLAG_IS_GUEST      0x0001
 210 #define SMB2_SESSION_FLAG_IS_NULL       0x0002
 211 struct smb2_sess_setup_rsp {
 212         struct smb2_hdr hdr;
 213         __le16 StructureSize; /* Must be 9 */
 214         __le16 SessionFlags;
 215         __le16 SecurityBufferOffset;
 216         __le16 SecurityBufferLength;
 217         __u8   Buffer[1];       /* variable length GSS security buffer */
 218 } __packed;
 219
 220 struct smb2_logoff_req {
 221         struct smb2_hdr hdr;
 222         __le16 StructureSize;   /* Must be 4 */
 223         __le16 Reserved;
 224 } __packed;
 225
 226 struct smb2_logoff_rsp {
 227         struct smb2_hdr hdr;
 228         __le16 StructureSize;   /* Must be 4 */
 229         __le16 Reserved;
 230 } __packed;
 231
 232 struct smb2_tree_connect_req {
 233         struct smb2_hdr hdr;
 234         __le16 StructureSize;   /* Must be 9 */
 235         __le16 Reserved;
 236         __le16 PathOffset;
 237         __le16 PathLength;
 238         __u8   Buffer[1];       /* variable length */
 239 } __packed;
 240
 241 struct smb2_tree_connect_rsp {
 242         struct smb2_hdr hdr;
 243         __le16 StructureSize;   /* Must be 16 */
 244         __u8   ShareType;  /* see below */
 245         __u8   Reserved;
 246         __le32 ShareFlags; /* see below */
 247         __le32 Capabilities; /* see below */
 248         __le32 MaximalAccess;
 249 } __packed;
 250
 251 /* Possible ShareType values */
 252 #define SMB2_SHARE_TYPE_DISK    0x01
 253 #define SMB2_SHARE_TYPE_PIPE    0x02
 254 #define SMB2_SHARE_TYPE_PRINT   0x03
 255
 256 /*
 257  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 258  * must be set (any of the remaining, SHI1005, flags may be set individually
 259  * or in combination.
 260  */
 261 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
 262 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
 263 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
 264 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
 265 #define SHI1005_FLAGS_DFS                               0x00000001
 266 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
 267 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS          0x00000100
 268 #define SHI1005_FLAGS_FORCE_SHARED_DELETE               0x00000200
 269 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING           0x00000400
 270 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM       0x00000800
 271 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK              0x00001000
 272 #define SHI1005_FLAGS_ENABLE_HASH                       0x00002000
 273
 274 /* Possible share capabilities */
 275 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008)
 276
 277 struct smb2_tree_disconnect_req {
 278         struct smb2_hdr hdr;
 279         __le16 StructureSize;   /* Must be 4 */
 280         __le16 Reserved;
 281 } __packed;
 282
 283 struct smb2_tree_disconnect_rsp {
 284         struct smb2_hdr hdr;
 285         __le16 StructureSize;   /* Must be 4 */
 286         __le16 Reserved;
 287 } __packed;
 288
 289 /* File Attrubutes */
 290 #define FILE_ATTRIBUTE_READONLY                 0x00000001
 291 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
 292 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
 293 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
 294 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
 295 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
 296 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
 297 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
 298 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
 299 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
 300 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
 301 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
 302 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
 303
 304 /* Oplock levels */
 305 #define SMB2_OPLOCK_LEVEL_NONE          0x00
 306 #define SMB2_OPLOCK_LEVEL_II            0x01
 307 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
 308 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
 309 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
 310
 311 /* Desired Access Flags */
 312 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
 313 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
 314 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
 315 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
 316 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
 317 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
 318 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
 319 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
 320 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
 321 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
 322 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
 323 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
 324 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
 325 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
 326 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
 327 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
 328 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
 329 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
 330 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
 331
 332 /* ShareAccess Flags */
 333 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
 334 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
 335 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
 336 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
 337
 338 /* CreateDisposition Flags */
 339 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
 340 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
 341 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
 342 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
 343 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
 344 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
 345
 346 /* CreateOptions Flags */
 347 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
 348 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
 349 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
 350 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
 351 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
 352 #define FILE_SYNCHRONOUS_IO_ALERT_LE    cpu_to_le32(0x00000010)
 353 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE        cpu_to_le32(0x00000020)
 354 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
 355 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
 356 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
 357 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
 358 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000)
 359 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
 360 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
 361 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
 362 #define FILE_RESERVE_OPFILTER_LE        cpu_to_le32(0x00100000)
 363 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
 364 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
 365 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
 366
 367 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
 368                         | FILE_READ_ATTRIBUTES_LE)
 369 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
 370                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
 371 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
 372
 373 /* Impersonation Levels */
 374 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
 375 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
 376 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
 377 #define IL_DELEGATE             cpu_to_le32(0x00000003)
 378
 379 /* Create Context Values */
 380 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
 381 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
 382 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
 383 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
 384 #define SMB2_CREATE_ALLOCATION_SIZE             "AlSi"
 385 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
 386 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
 387 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
 388 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
 389
 390 struct smb2_create_req {
 391         struct smb2_hdr hdr;
 392         __le16 StructureSize;   /* Must be 57 */
 393         __u8   SecurityFlags;
 394         __u8   RequestedOplockLevel;
 395         __le32 ImpersonationLevel;
 396         __le64 SmbCreateFlags;
 397         __le64 Reserved;
 398         __le32 DesiredAccess;
 399         __le32 FileAttributes;
 400         __le32 ShareAccess;
 401         __le32 CreateDisposition;
 402         __le32 CreateOptions;
 403         __le16 NameOffset;
 404         __le16 NameLength;
 405         __le32 CreateContextsOffset;
 406         __le32 CreateContextsLength;
 407         __u8   Buffer[1];
 408 } __packed;
 409
 410 struct smb2_create_rsp {
 411         struct smb2_hdr hdr;
 412         __le16 StructureSize;   /* Must be 89 */
 413         __u8   OplockLevel;
 414         __u8   Reserved;
 415         __le32 CreateAction;
 416         __le64 CreationTime;
 417         __le64 LastAccessTime;
 418         __le64 LastWriteTime;
 419         __le64 ChangeTime;
 420         __le64 AllocationSize;
 421         __le64 EndofFile;
 422         __le32 FileAttributes;
 423         __le32 Reserved2;
 424         __u64  PersistentFileId; /* opaque endianness */
 425         __u64  VolatileFileId; /* opaque endianness */
 426         __le32 CreateContextsOffset;
 427         __le32 CreateContextsLength;
 428         __u8   Buffer[1];
 429 } __packed;
 430
 431 /* Currently defined values for close flags */
 432 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
 433 struct smb2_close_req {
 434         struct smb2_hdr hdr;
 435         __le16 StructureSize;   /* Must be 24 */
 436         __le16 Flags;
 437         __le32 Reserved;
 438         __u64  PersistentFileId; /* opaque endianness */
 439         __u64  VolatileFileId; /* opaque endianness */
 440 } __packed;
 441
 442 struct smb2_close_rsp {
 443         struct smb2_hdr hdr;
 444         __le16 StructureSize; /* 60 */
 445         __le16 Flags;
 446         __le32 Reserved;
 447         __le64 CreationTime;
 448         __le64 LastAccessTime;
 449         __le64 LastWriteTime;
 450         __le64 ChangeTime;
 451         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 452         __le64 EndOfFile;
 453         __le32 Attributes;
 454 } __packed;
 455
 456 struct smb2_flush_req {
 457         struct smb2_hdr hdr;
 458         __le16 StructureSize;   /* Must be 24 */
 459         __le16 Reserved1;
 460         __le32 Reserved2;
 461         __u64  PersistentFileId; /* opaque endianness */
 462         __u64  VolatileFileId; /* opaque endianness */
 463 } __packed;
 464
 465 struct smb2_flush_rsp {
 466         struct smb2_hdr hdr;
 467         __le16 StructureSize;
 468         __le16 Reserved;
 469 } __packed;
 470
 471 struct smb2_read_req {
 472         struct smb2_hdr hdr;
 473         __le16 StructureSize; /* Must be 49 */
 474         __u8   Padding; /* offset from start of SMB2 header to place read */
 475         __u8   Reserved;
 476         __le32 Length;
 477         __le64 Offset;
 478         __u64  PersistentFileId; /* opaque endianness */
 479         __u64  VolatileFileId; /* opaque endianness */
 480         __le32 MinimumCount;
 481         __le32 Channel; /* Reserved MBZ */
 482         __le32 RemainingBytes;
 483         __le16 ReadChannelInfoOffset; /* Reserved MBZ */
 484         __le16 ReadChannelInfoLength; /* Reserved MBZ */
 485         __u8   Buffer[1];
 486 } __packed;
 487
 488 struct smb2_read_rsp {
 489         struct smb2_hdr hdr;
 490         __le16 StructureSize; /* Must be 17 */
 491         __u8   DataOffset;
 492         __u8   Reserved;
 493         __le32 DataLength;
 494         __le32 DataRemaining;
 495         __u32  Reserved2;
 496         __u8   Buffer[1];
 497 } __packed;
 498
 499 /* For write request Flags field below the following flag is defined: */
 500 #define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001
 501
 502 struct smb2_write_req {
 503         struct smb2_hdr hdr;
 504         __le16 StructureSize; /* Must be 49 */
 505         __le16 DataOffset; /* offset from start of SMB2 header to write data */
 506         __le32 Length;
 507         __le64 Offset;
 508         __u64  PersistentFileId; /* opaque endianness */
 509         __u64  VolatileFileId; /* opaque endianness */
 510         __le32 Channel; /* Reserved MBZ */
 511         __le32 RemainingBytes;
 512         __le16 WriteChannelInfoOffset; /* Reserved MBZ */
 513         __le16 WriteChannelInfoLength; /* Reserved MBZ */
 514         __le32 Flags;
 515         __u8   Buffer[1];
 516 } __packed;
 517
 518 struct smb2_write_rsp {
 519         struct smb2_hdr hdr;
 520         __le16 StructureSize; /* Must be 17 */
 521         __u8   DataOffset;
 522         __u8   Reserved;
 523         __le32 DataLength;
 524         __le32 DataRemaining;
 525         __u32  Reserved2;
 526         __u8   Buffer[1];
 527 } __packed;
 528
 529 struct smb2_echo_req {
 530         struct smb2_hdr hdr;
 531         __le16 StructureSize;   /* Must be 4 */
 532         __u16  Reserved;
 533 } __packed;
 534
 535 struct smb2_echo_rsp {
 536         struct smb2_hdr hdr;
 537         __le16 StructureSize;   /* Must be 4 */
 538         __u16  Reserved;
 539 } __packed;
 540
 541 /* search (query_directory) Flags field */
 542 #define SMB2_RESTART_SCANS              0x01
 543 #define SMB2_RETURN_SINGLE_ENTRY        0x02
 544 #define SMB2_INDEX_SPECIFIED            0x04
 545 #define SMB2_REOPEN                     0x10
 546
 547 struct smb2_query_directory_req {
 548         struct smb2_hdr hdr;
 549         __le16 StructureSize; /* Must be 33 */
 550         __u8   FileInformationClass;
 551         __u8   Flags;
 552         __le32 FileIndex;
 553         __u64  PersistentFileId; /* opaque endianness */
 554         __u64  VolatileFileId; /* opaque endianness */
 555         __le16 FileNameOffset;
 556         __le16 FileNameLength;
 557         __le32 OutputBufferLength;
 558         __u8   Buffer[1];
 559 } __packed;
 560
 561 struct smb2_query_directory_rsp {
 562         struct smb2_hdr hdr;
 563         __le16 StructureSize; /* Must be 9 */
 564         __le16 OutputBufferOffset;
 565         __le32 OutputBufferLength;
 566         __u8   Buffer[1];
 567 } __packed;
 568
 569 /* Possible InfoType values */
 570 #define SMB2_O_INFO_FILE        0x01
 571 #define SMB2_O_INFO_FILESYSTEM  0x02
 572 #define SMB2_O_INFO_SECURITY    0x03
 573 #define SMB2_O_INFO_QUOTA       0x04
 574
 575 struct smb2_query_info_req {
 576         struct smb2_hdr hdr;
 577         __le16 StructureSize; /* Must be 41 */
 578         __u8   InfoType;
 579         __u8   FileInfoClass;
 580         __le32 OutputBufferLength;
 581         __le16 InputBufferOffset;
 582         __u16  Reserved;
 583         __le32 InputBufferLength;
 584         __le32 AdditionalInformation;
 585         __le32 Flags;
 586         __u64  PersistentFileId; /* opaque endianness */
 587         __u64  VolatileFileId; /* opaque endianness */
 588         __u8   Buffer[1];
 589 } __packed;
 590
 591 struct smb2_query_info_rsp {
 592         struct smb2_hdr hdr;
 593         __le16 StructureSize; /* Must be 9 */
 594         __le16 OutputBufferOffset;
 595         __le32 OutputBufferLength;
 596         __u8   Buffer[1];
 597 } __packed;
 598
 599 struct smb2_set_info_req {
 600         struct smb2_hdr hdr;
 601         __le16 StructureSize; /* Must be 33 */
 602         __u8   InfoType;
 603         __u8   FileInfoClass;
 604         __le32 BufferLength;
 605         __le16 BufferOffset;
 606         __u16  Reserved;
 607         __le32 AdditionalInformation;
 608         __u64  PersistentFileId; /* opaque endianness */
 609         __u64  VolatileFileId; /* opaque endianness */
 610         __u8   Buffer[1];
 611 } __packed;
 612
 613 struct smb2_set_info_rsp {
 614         struct smb2_hdr hdr;
 615         __le16 StructureSize; /* Must be 2 */
 616 } __packed;
 617
 618 struct smb2_oplock_break {
 619         struct smb2_hdr hdr;
 620         __le16 StructureSize; /* Must be 24 */
 621         __u8   OplockLevel;
 622         __u8   Reserved;
 623         __le32 Reserved2;
 624         __u64  PersistentFid;
 625         __u64  VolatileFid;
 626 } __packed;
 627
 628 /*
 629  *      PDU infolevel structure definitions
 630  *      BB consider moving to a different header
 631  */
 632
 633 /* File System Information Classes */
 634 #define FS_VOLUME_INFORMATION           1 /* Query */
 635 #define FS_LABEL_INFORMATION            2 /* Set */
 636 #define FS_SIZE_INFORMATION             3 /* Query */
 637 #define FS_DEVICE_INFORMATION           4 /* Query */
 638 #define FS_ATTRIBUTE_INFORMATION        5 /* Query */
 639 #define FS_CONTROL_INFORMATION          6 /* Query, Set */
 640 #define FS_FULL_SIZE_INFORMATION        7 /* Query */
 641 #define FS_OBJECT_ID_INFORMATION        8 /* Query, Set */
 642 #define FS_DRIVER_PATH_INFORMATION      9 /* Query */
 643
 644 struct smb2_fs_full_size_info {
 645         __le64 TotalAllocationUnits;
 646         __le64 CallerAvailableAllocationUnits;
 647         __le64 ActualAvailableAllocationUnits;
 648         __le32 SectorsPerAllocationUnit;
 649         __le32 BytesPerSector;
 650 } __packed;
 651
 652 /* partial list of QUERY INFO levels */
 653 #define FILE_DIRECTORY_INFORMATION      1
 654 #define FILE_FULL_DIRECTORY_INFORMATION 2
 655 #define FILE_BOTH_DIRECTORY_INFORMATION 3
 656 #define FILE_BASIC_INFORMATION          4
 657 #define FILE_STANDARD_INFORMATION       5
 658 #define FILE_INTERNAL_INFORMATION       6
 659 #define FILE_EA_INFORMATION             7
 660 #define FILE_ACCESS_INFORMATION         8
 661 #define FILE_NAME_INFORMATION           9
 662 #define FILE_RENAME_INFORMATION         10
 663 #define FILE_LINK_INFORMATION           11
 664 #define FILE_NAMES_INFORMATION          12
 665 #define FILE_DISPOSITION_INFORMATION    13
 666 #define FILE_POSITION_INFORMATION       14
 667 #define FILE_FULL_EA_INFORMATION        15
 668 #define FILE_MODE_INFORMATION           16
 669 #define FILE_ALIGNMENT_INFORMATION      17
 670 #define FILE_ALL_INFORMATION            18
 671 #define FILE_ALLOCATION_INFORMATION     19
 672 #define FILE_END_OF_FILE_INFORMATION    20
 673 #define FILE_ALTERNATE_NAME_INFORMATION 21
 674 #define FILE_STREAM_INFORMATION         22
 675 #define FILE_PIPE_INFORMATION           23
 676 #define FILE_PIPE_LOCAL_INFORMATION     24
 677 #define FILE_PIPE_REMOTE_INFORMATION    25
 678 #define FILE_MAILSLOT_QUERY_INFORMATION 26
 679 #define FILE_MAILSLOT_SET_INFORMATION   27
 680 #define FILE_COMPRESSION_INFORMATION    28
 681 #define FILE_OBJECT_ID_INFORMATION      29
 682 /* Number 30 not defined in documents */
 683 #define FILE_MOVE_CLUSTER_INFORMATION   31
 684 #define FILE_QUOTA_INFORMATION          32
 685 #define FILE_REPARSE_POINT_INFORMATION  33
 686 #define FILE_NETWORK_OPEN_INFORMATION   34
 687 #define FILE_ATTRIBUTE_TAG_INFORMATION  35
 688 #define FILE_TRACKING_INFORMATION       36
 689 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
 690 #define FILEID_FULL_DIRECTORY_INFORMATION 38
 691 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
 692 #define FILE_SHORT_NAME_INFORMATION     40
 693 #define FILE_SFIO_RESERVE_INFORMATION   44
 694 #define FILE_SFIO_VOLUME_INFORMATION    45
 695 #define FILE_HARD_LINK_INFORMATION      46
 696 #define FILE_NORMALIZED_NAME_INFORMATION 48
 697 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
 698 #define FILE_STANDARD_LINK_INFORMATION  54
 699
 700 struct smb2_file_internal_info {
 701         __le64 IndexNumber;
 702 } __packed; /* level 6 Query */
 703
 704 struct smb2_file_rename_info { /* encoding of request for level 10 */
 705         __u8   ReplaceIfExists; /* 1 = replace existing target with new */
 706                                 /* 0 = fail if target already exists */
 707         __u8   Reserved[7];
 708         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
 709         __le32 FileNameLength;
 710         char   FileName[0];     /* New name to be assigned */
 711 } __packed; /* level 10 Set */
 712
 713 struct smb2_file_link_info { /* encoding of request for level 11 */
 714         __u8   ReplaceIfExists; /* 1 = replace existing link with new */
 715                                 /* 0 = fail if link already exists */
 716         __u8   Reserved[7];
 717         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
 718         __le32 FileNameLength;
 719         char   FileName[0];     /* Name to be assigned to new link */
 720 } __packed; /* level 11 Set */
 721
 722 /*
 723  * This level 18, although with struct with same name is different from cifs
 724  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
 725  * CurrentByteOffset.
 726  */
 727 struct smb2_file_all_info { /* data block encoding of response to level 18 */
 728         __le64 CreationTime;    /* Beginning of FILE_BASIC_INFO equivalent */
 729         __le64 LastAccessTime;
 730         __le64 LastWriteTime;
 731         __le64 ChangeTime;
 732         __le32 Attributes;
 733         __u32  Pad1;            /* End of FILE_BASIC_INFO_INFO equivalent */
 734         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 735         __le64 EndOfFile;       /* size ie offset to first free byte in file */
 736         __le32 NumberOfLinks;   /* hard links */
 737         __u8   DeletePending;
 738         __u8   Directory;
 739         __u16  Pad2;            /* End of FILE_STANDARD_INFO equivalent */
 740         __le64 IndexNumber;
 741         __le32 EASize;
 742         __le32 AccessFlags;
 743         __le64 CurrentByteOffset;
 744         __le32 Mode;
 745         __le32 AlignmentRequirement;
 746         __le32 FileNameLength;
 747         char   FileName[1];
 748 } __packed; /* level 18 Query */
 749
 750 struct smb2_file_eof_info { /* encoding of request for level 10 */
 751         __le64 EndOfFile; /* new end of file value */
 752 } __packed; /* level 20 Set */
 753
 754 #endif                          /* _SMB2PDU_H */