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 #define SMB2_HEADER_SIZE __constant_le16_to_cpu(64)
  91
  92 #define SMB2_ERROR_STRUCTURE_SIZE2 __constant_le16_to_cpu(9)
  93
  94 /*
  95  * SMB2 Header Definition
  96  *
  97  * "MBZ" :  Must be Zero
  98  * "BB"  :  BugBug, Something to check/review/analyze later
  99  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
 100  *
 101  */
 102 struct smb2_hdr {
 103         __be32 smb2_buf_length; /* big endian on wire */
 104                                 /* length is only two or three bytes - with
 105                                  one or two byte type preceding it that MBZ */
 106         __u8   ProtocolId[4];   /* 0xFE 'S' 'M' 'B' */
 107         __le16 StructureSize;   /* 64 */
 108         __le16 CreditCharge;    /* MBZ */
 109         __le32 Status;          /* Error from server */
 110         __le16 Command;
 111         __le16 CreditRequest;  /* CreditResponse */
 112         __le32 Flags;
 113         __le32 NextCommand;
 114         __u64  MessageId;       /* opaque - so can stay little endian */
 115         __le32 ProcessId;
 116         __u32  TreeId;          /* opaque - so do not make little endian */
 117         __u64  SessionId;       /* opaque - so do not make little endian */
 118         __u8   Signature[16];
 119 } __packed;
 120
 121 struct smb2_pdu {
 122         struct smb2_hdr hdr;
 123         __le16 StructureSize2; /* size of wct area (varies, request specific) */
 124 } __packed;
 125
 126 /*
 127  *      SMB2 flag definitions
 128  */
 129 #define SMB2_FLAGS_SERVER_TO_REDIR      __constant_cpu_to_le32(0x00000001)
 130 #define SMB2_FLAGS_ASYNC_COMMAND        __constant_cpu_to_le32(0x00000002)
 131 #define SMB2_FLAGS_RELATED_OPERATIONS   __constant_cpu_to_le32(0x00000004)
 132 #define SMB2_FLAGS_SIGNED               __constant_cpu_to_le32(0x00000008)
 133 #define SMB2_FLAGS_DFS_OPERATIONS       __constant_cpu_to_le32(0x10000000)
 134
 135 /*
 136  *      Definitions for SMB2 Protocol Data Units (network frames)
 137  *
 138  *  See MS-SMB2.PDF specification for protocol details.
 139  *  The Naming convention is the lower case version of the SMB2
 140  *  command code name for the struct. Note that structures must be packed.
 141  *
 142  */
 143 struct smb2_err_rsp {
 144         struct smb2_hdr hdr;
 145         __le16 StructureSize;
 146         __le16 Reserved; /* MBZ */
 147         __le32 ByteCount;  /* even if zero, at least one byte follows */
 148         __u8   ErrorData[1];  /* variable length */
 149 } __packed;
 150
 151 struct smb2_negotiate_req {
 152         struct smb2_hdr hdr;
 153         __le16 StructureSize; /* Must be 36 */
 154         __le16 DialectCount;
 155         __le16 SecurityMode;
 156         __le16 Reserved;        /* MBZ */
 157         __le32 Capabilities;
 158         __u8   ClientGUID[16];  /* MBZ */
 159         __le64 ClientStartTime; /* MBZ */
 160         __le16 Dialects[2]; /* variable length */
 161 } __packed;
 162
 163 /* SecurityMode flags */
 164 #define SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
 165 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
 166 /* Capabilities flags */
 167 #define SMB2_GLOBAL_CAP_DFS             0x00000001
 168 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
 169 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
 170
 171 struct smb2_negotiate_rsp {
 172         struct smb2_hdr hdr;
 173         __le16 StructureSize;   /* Must be 65 */
 174         __le16 SecurityMode;
 175         __le16 DialectRevision;
 176         __le16 Reserved;        /* MBZ */
 177         __u8   ServerGUID[16];
 178         __le32 Capabilities;
 179         __le32 MaxTransactSize;
 180         __le32 MaxReadSize;
 181         __le32 MaxWriteSize;
 182         __le64 SystemTime;      /* MBZ */
 183         __le64 ServerStartTime;
 184         __le16 SecurityBufferOffset;
 185         __le16 SecurityBufferLength;
 186         __le32 Reserved2;       /* may be any value, ignore */
 187         __u8   Buffer[1];       /* variable length GSS security buffer */
 188 } __packed;
 189
 190 struct smb2_sess_setup_req {
 191         struct smb2_hdr hdr;
 192         __le16 StructureSize; /* Must be 25 */
 193         __u8   VcNumber;
 194         __u8   SecurityMode;
 195         __le32 Capabilities;
 196         __le32 Channel;
 197         __le16 SecurityBufferOffset;
 198         __le16 SecurityBufferLength;
 199         __le64 PreviousSessionId;
 200         __u8   Buffer[1];       /* variable length GSS security buffer */
 201 } __packed;
 202
 203 /* Currently defined SessionFlags */
 204 #define SMB2_SESSION_FLAG_IS_GUEST      0x0001
 205 #define SMB2_SESSION_FLAG_IS_NULL       0x0002
 206 struct smb2_sess_setup_rsp {
 207         struct smb2_hdr hdr;
 208         __le16 StructureSize; /* Must be 9 */
 209         __le16 SessionFlags;
 210         __le16 SecurityBufferOffset;
 211         __le16 SecurityBufferLength;
 212         __u8   Buffer[1];       /* variable length GSS security buffer */
 213 } __packed;
 214
 215 struct smb2_logoff_req {
 216         struct smb2_hdr hdr;
 217         __le16 StructureSize;   /* Must be 4 */
 218         __le16 Reserved;
 219 } __packed;
 220
 221 struct smb2_logoff_rsp {
 222         struct smb2_hdr hdr;
 223         __le16 StructureSize;   /* Must be 4 */
 224         __le16 Reserved;
 225 } __packed;
 226
 227 struct smb2_tree_connect_req {
 228         struct smb2_hdr hdr;
 229         __le16 StructureSize;   /* Must be 9 */
 230         __le16 Reserved;
 231         __le16 PathOffset;
 232         __le16 PathLength;
 233         __u8   Buffer[1];       /* variable length */
 234 } __packed;
 235
 236 struct smb2_tree_connect_rsp {
 237         struct smb2_hdr hdr;
 238         __le16 StructureSize;   /* Must be 16 */
 239         __u8   ShareType;  /* see below */
 240         __u8   Reserved;
 241         __le32 ShareFlags; /* see below */
 242         __le32 Capabilities; /* see below */
 243         __le32 MaximalAccess;
 244 } __packed;
 245
 246 /* Possible ShareType values */
 247 #define SMB2_SHARE_TYPE_DISK    0x01
 248 #define SMB2_SHARE_TYPE_PIPE    0x02
 249 #define SMB2_SHARE_TYPE_PRINT   0x03
 250
 251 /*
 252  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 253  * must be set (any of the remaining, SHI1005, flags may be set individually
 254  * or in combination.
 255  */
 256 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
 257 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
 258 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
 259 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
 260 #define SHI1005_FLAGS_DFS                               0x00000001
 261 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
 262 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS          0x00000100
 263 #define SHI1005_FLAGS_FORCE_SHARED_DELETE               0x00000200
 264 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING           0x00000400
 265 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM       0x00000800
 266 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK              0x00001000
 267 #define SHI1005_FLAGS_ENABLE_HASH                       0x00002000
 268
 269 /* Possible share capabilities */
 270 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008)
 271
 272 struct smb2_tree_disconnect_req {
 273         struct smb2_hdr hdr;
 274         __le16 StructureSize;   /* Must be 4 */
 275         __le16 Reserved;
 276 } __packed;
 277
 278 struct smb2_tree_disconnect_rsp {
 279         struct smb2_hdr hdr;
 280         __le16 StructureSize;   /* Must be 4 */
 281         __le16 Reserved;
 282 } __packed;
 283
 284 /* File Attrubutes */
 285 #define FILE_ATTRIBUTE_READONLY                 0x00000001
 286 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
 287 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
 288 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
 289 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
 290 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
 291 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
 292 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
 293 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
 294 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
 295 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
 296 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
 297 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
 298
 299 /* Oplock levels */
 300 #define SMB2_OPLOCK_LEVEL_NONE          0x00
 301 #define SMB2_OPLOCK_LEVEL_II            0x01
 302 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
 303 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
 304 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
 305
 306 /* Desired Access Flags */
 307 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
 308 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
 309 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
 310 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
 311 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
 312 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
 313 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
 314 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
 315 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
 316 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
 317 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
 318 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
 319 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
 320 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
 321 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
 322 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
 323 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
 324 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
 325 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
 326
 327 /* ShareAccess Flags */
 328 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
 329 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
 330 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
 331 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
 332
 333 /* CreateDisposition Flags */
 334 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
 335 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
 336 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
 337 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
 338 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
 339 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
 340
 341 /* CreateOptions Flags */
 342 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
 343 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
 344 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
 345 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
 346 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
 347 #define FILE_SYNCHRONOUS_IO_ALERT_LE    cpu_to_le32(0x00000010)
 348 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE        cpu_to_le32(0x00000020)
 349 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
 350 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
 351 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
 352 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
 353 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000)
 354 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
 355 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
 356 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
 357 #define FILE_RESERVE_OPFILTER_LE        cpu_to_le32(0x00100000)
 358 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
 359 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
 360 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
 361
 362 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
 363                         | FILE_READ_ATTRIBUTES_LE)
 364 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
 365                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
 366 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
 367
 368 /* Impersonation Levels */
 369 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
 370 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
 371 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
 372 #define IL_DELEGATE             cpu_to_le32(0x00000003)
 373
 374 /* Create Context Values */
 375 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
 376 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
 377 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
 378 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
 379 #define SMB2_CREATE_ALLOCATION_SIZE             "AlSi"
 380 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
 381 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
 382 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
 383 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
 384
 385 struct smb2_create_req {
 386         struct smb2_hdr hdr;
 387         __le16 StructureSize;   /* Must be 57 */
 388         __u8   SecurityFlags;
 389         __u8   RequestedOplockLevel;
 390         __le32 ImpersonationLevel;
 391         __le64 SmbCreateFlags;
 392         __le64 Reserved;
 393         __le32 DesiredAccess;
 394         __le32 FileAttributes;
 395         __le32 ShareAccess;
 396         __le32 CreateDisposition;
 397         __le32 CreateOptions;
 398         __le16 NameOffset;
 399         __le16 NameLength;
 400         __le32 CreateContextsOffset;
 401         __le32 CreateContextsLength;
 402         __u8   Buffer[1];
 403 } __packed;
 404
 405 struct smb2_create_rsp {
 406         struct smb2_hdr hdr;
 407         __le16 StructureSize;   /* Must be 89 */
 408         __u8   OplockLevel;
 409         __u8   Reserved;
 410         __le32 CreateAction;
 411         __le64 CreationTime;
 412         __le64 LastAccessTime;
 413         __le64 LastWriteTime;
 414         __le64 ChangeTime;
 415         __le64 AllocationSize;
 416         __le64 EndofFile;
 417         __le32 FileAttributes;
 418         __le32 Reserved2;
 419         __u64  PersistentFileId; /* opaque endianness */
 420         __u64  VolatileFileId; /* opaque endianness */
 421         __le32 CreateContextsOffset;
 422         __le32 CreateContextsLength;
 423         __u8   Buffer[1];
 424 } __packed;
 425
 426 /* Currently defined values for close flags */
 427 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
 428 struct smb2_close_req {
 429         struct smb2_hdr hdr;
 430         __le16 StructureSize;   /* Must be 24 */
 431         __le16 Flags;
 432         __le32 Reserved;
 433         __u64  PersistentFileId; /* opaque endianness */
 434         __u64  VolatileFileId; /* opaque endianness */
 435 } __packed;
 436
 437 struct smb2_close_rsp {
 438         struct smb2_hdr hdr;
 439         __le16 StructureSize; /* 60 */
 440         __le16 Flags;
 441         __le32 Reserved;
 442         __le64 CreationTime;
 443         __le64 LastAccessTime;
 444         __le64 LastWriteTime;
 445         __le64 ChangeTime;
 446         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 447         __le64 EndOfFile;
 448         __le32 Attributes;
 449 } __packed;
 450
 451 struct smb2_echo_req {
 452         struct smb2_hdr hdr;
 453         __le16 StructureSize;   /* Must be 4 */
 454         __u16  Reserved;
 455 } __packed;
 456
 457 struct smb2_echo_rsp {
 458         struct smb2_hdr hdr;
 459         __le16 StructureSize;   /* Must be 4 */
 460         __u16  Reserved;
 461 } __packed;
 462
 463 /* Possible InfoType values */
 464 #define SMB2_O_INFO_FILE        0x01
 465 #define SMB2_O_INFO_FILESYSTEM  0x02
 466 #define SMB2_O_INFO_SECURITY    0x03
 467 #define SMB2_O_INFO_QUOTA       0x04
 468
 469 struct smb2_query_info_req {
 470         struct smb2_hdr hdr;
 471         __le16 StructureSize; /* Must be 41 */
 472         __u8   InfoType;
 473         __u8   FileInfoClass;
 474         __le32 OutputBufferLength;
 475         __le16 InputBufferOffset;
 476         __u16  Reserved;
 477         __le32 InputBufferLength;
 478         __le32 AdditionalInformation;
 479         __le32 Flags;
 480         __u64  PersistentFileId; /* opaque endianness */
 481         __u64  VolatileFileId; /* opaque endianness */
 482         __u8   Buffer[1];
 483 } __packed;
 484
 485 struct smb2_query_info_rsp {
 486         struct smb2_hdr hdr;
 487         __le16 StructureSize; /* Must be 9 */
 488         __le16 OutputBufferOffset;
 489         __le32 OutputBufferLength;
 490         __u8   Buffer[1];
 491 } __packed;
 492
 493 /*
 494  *      PDU infolevel structure definitions
 495  *      BB consider moving to a different header
 496  */
 497
 498 /* partial list of QUERY INFO levels */
 499 #define FILE_DIRECTORY_INFORMATION      1
 500 #define FILE_FULL_DIRECTORY_INFORMATION 2
 501 #define FILE_BOTH_DIRECTORY_INFORMATION 3
 502 #define FILE_BASIC_INFORMATION          4
 503 #define FILE_STANDARD_INFORMATION       5
 504 #define FILE_INTERNAL_INFORMATION       6
 505 #define FILE_EA_INFORMATION             7
 506 #define FILE_ACCESS_INFORMATION         8
 507 #define FILE_NAME_INFORMATION           9
 508 #define FILE_RENAME_INFORMATION         10
 509 #define FILE_LINK_INFORMATION           11
 510 #define FILE_NAMES_INFORMATION          12
 511 #define FILE_DISPOSITION_INFORMATION    13
 512 #define FILE_POSITION_INFORMATION       14
 513 #define FILE_FULL_EA_INFORMATION        15
 514 #define FILE_MODE_INFORMATION           16
 515 #define FILE_ALIGNMENT_INFORMATION      17
 516 #define FILE_ALL_INFORMATION            18
 517 #define FILE_ALLOCATION_INFORMATION     19
 518 #define FILE_END_OF_FILE_INFORMATION    20
 519 #define FILE_ALTERNATE_NAME_INFORMATION 21
 520 #define FILE_STREAM_INFORMATION         22
 521 #define FILE_PIPE_INFORMATION           23
 522 #define FILE_PIPE_LOCAL_INFORMATION     24
 523 #define FILE_PIPE_REMOTE_INFORMATION    25
 524 #define FILE_MAILSLOT_QUERY_INFORMATION 26
 525 #define FILE_MAILSLOT_SET_INFORMATION   27
 526 #define FILE_COMPRESSION_INFORMATION    28
 527 #define FILE_OBJECT_ID_INFORMATION      29
 528 /* Number 30 not defined in documents */
 529 #define FILE_MOVE_CLUSTER_INFORMATION   31
 530 #define FILE_QUOTA_INFORMATION          32
 531 #define FILE_REPARSE_POINT_INFORMATION  33
 532 #define FILE_NETWORK_OPEN_INFORMATION   34
 533 #define FILE_ATTRIBUTE_TAG_INFORMATION  35
 534 #define FILE_TRACKING_INFORMATION       36
 535 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
 536 #define FILEID_FULL_DIRECTORY_INFORMATION 38
 537 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
 538 #define FILE_SHORT_NAME_INFORMATION     40
 539 #define FILE_SFIO_RESERVE_INFORMATION   44
 540 #define FILE_SFIO_VOLUME_INFORMATION    45
 541 #define FILE_HARD_LINK_INFORMATION      46
 542 #define FILE_NORMALIZED_NAME_INFORMATION 48
 543 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
 544 #define FILE_STANDARD_LINK_INFORMATION  54
 545
 546 /*
 547  * This level 18, although with struct with same name is different from cifs
 548  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
 549  * CurrentByteOffset.
 550  */
 551 struct smb2_file_all_info { /* data block encoding of response to level 18 */
 552         __le64 CreationTime;    /* Beginning of FILE_BASIC_INFO equivalent */
 553         __le64 LastAccessTime;
 554         __le64 LastWriteTime;
 555         __le64 ChangeTime;
 556         __le32 Attributes;
 557         __u32  Pad1;            /* End of FILE_BASIC_INFO_INFO equivalent */
 558         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 559         __le64 EndOfFile;       /* size ie offset to first free byte in file */
 560         __le32 NumberOfLinks;   /* hard links */
 561         __u8   DeletePending;
 562         __u8   Directory;
 563         __u16  Pad2;            /* End of FILE_STANDARD_INFO equivalent */
 564         __le64 IndexNumber;
 565         __le32 EASize;
 566         __le32 AccessFlags;
 567         __le64 CurrentByteOffset;
 568         __le32 Mode;
 569         __le32 AlignmentRequirement;
 570         __le32 FileNameLength;
 571         char   FileName[1];
 572 } __packed; /* level 18 Query */
 573
 574 #endif                          /* _SMB2PDU_H */