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 #define SMB2_CLIENT_GUID_SIZE 16
 154
 155 extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
 156
 157 struct smb2_negotiate_req {
 158         struct smb2_hdr hdr;
 159         __le16 StructureSize; /* Must be 36 */
 160         __le16 DialectCount;
 161         __le16 SecurityMode;
 162         __le16 Reserved;        /* MBZ */
 163         __le32 Capabilities;
 164         __u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
 165         __le64 ClientStartTime; /* MBZ */
 166         __le16 Dialects[1]; /* One dialect (vers=) at a time for now */
 167 } __packed;
 168
 169 /* Dialects */
 170 #define SMB20_PROT_ID 0x0202
 171 #define SMB21_PROT_ID 0x0210
 172 #define SMB30_PROT_ID 0x0300
 173 #define SMB302_PROT_ID 0x0302
 174 #define BAD_PROT_ID   0xFFFF
 175
 176 /* SecurityMode flags */
 177 #define SMB2_NEGOTIATE_SIGNING_ENABLED  0x0001
 178 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
 179 /* Capabilities flags */
 180 #define SMB2_GLOBAL_CAP_DFS             0x00000001
 181 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
 182 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
 183 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL   0x00000008 /* New to SMB3 */
 184 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
 185 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
 186 #define SMB2_GLOBAL_CAP_ENCRYPTION      0x00000040 /* New to SMB3 */
 187 /* Internal types */
 188 #define SMB2_NT_FIND                    0x00100000
 189 #define SMB2_LARGE_FILES                0x00200000
 190
 191 struct smb2_negotiate_rsp {
 192         struct smb2_hdr hdr;
 193         __le16 StructureSize;   /* Must be 65 */
 194         __le16 SecurityMode;
 195         __le16 DialectRevision;
 196         __le16 Reserved;        /* MBZ */
 197         __u8   ServerGUID[16];
 198         __le32 Capabilities;
 199         __le32 MaxTransactSize;
 200         __le32 MaxReadSize;
 201         __le32 MaxWriteSize;
 202         __le64 SystemTime;      /* MBZ */
 203         __le64 ServerStartTime;
 204         __le16 SecurityBufferOffset;
 205         __le16 SecurityBufferLength;
 206         __le32 Reserved2;       /* may be any value, ignore */
 207         __u8   Buffer[1];       /* variable length GSS security buffer */
 208 } __packed;
 209
 210 struct smb2_sess_setup_req {
 211         struct smb2_hdr hdr;
 212         __le16 StructureSize; /* Must be 25 */
 213         __u8   VcNumber;
 214         __u8   SecurityMode;
 215         __le32 Capabilities;
 216         __le32 Channel;
 217         __le16 SecurityBufferOffset;
 218         __le16 SecurityBufferLength;
 219         __le64 PreviousSessionId;
 220         __u8   Buffer[1];       /* variable length GSS security buffer */
 221 } __packed;
 222
 223 /* Currently defined SessionFlags */
 224 #define SMB2_SESSION_FLAG_IS_GUEST      0x0001
 225 #define SMB2_SESSION_FLAG_IS_NULL       0x0002
 226 struct smb2_sess_setup_rsp {
 227         struct smb2_hdr hdr;
 228         __le16 StructureSize; /* Must be 9 */
 229         __le16 SessionFlags;
 230         __le16 SecurityBufferOffset;
 231         __le16 SecurityBufferLength;
 232         __u8   Buffer[1];       /* variable length GSS security buffer */
 233 } __packed;
 234
 235 struct smb2_logoff_req {
 236         struct smb2_hdr hdr;
 237         __le16 StructureSize;   /* Must be 4 */
 238         __le16 Reserved;
 239 } __packed;
 240
 241 struct smb2_logoff_rsp {
 242         struct smb2_hdr hdr;
 243         __le16 StructureSize;   /* Must be 4 */
 244         __le16 Reserved;
 245 } __packed;
 246
 247 struct smb2_tree_connect_req {
 248         struct smb2_hdr hdr;
 249         __le16 StructureSize;   /* Must be 9 */
 250         __le16 Reserved;
 251         __le16 PathOffset;
 252         __le16 PathLength;
 253         __u8   Buffer[1];       /* variable length */
 254 } __packed;
 255
 256 struct smb2_tree_connect_rsp {
 257         struct smb2_hdr hdr;
 258         __le16 StructureSize;   /* Must be 16 */
 259         __u8   ShareType;  /* see below */
 260         __u8   Reserved;
 261         __le32 ShareFlags; /* see below */
 262         __le32 Capabilities; /* see below */
 263         __le32 MaximalAccess;
 264 } __packed;
 265
 266 /* Possible ShareType values */
 267 #define SMB2_SHARE_TYPE_DISK    0x01
 268 #define SMB2_SHARE_TYPE_PIPE    0x02
 269 #define SMB2_SHARE_TYPE_PRINT   0x03
 270
 271 /*
 272  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 273  * must be set (any of the remaining, SHI1005, flags may be set individually
 274  * or in combination.
 275  */
 276 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
 277 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
 278 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
 279 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
 280 #define SHI1005_FLAGS_DFS                               0x00000001
 281 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
 282 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS          0x00000100
 283 #define SHI1005_FLAGS_FORCE_SHARED_DELETE               0x00000200
 284 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING           0x00000400
 285 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM       0x00000800
 286 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK              0x00001000
 287 #define SHI1005_FLAGS_ENABLE_HASH                       0x00002000
 288
 289 /* Possible share capabilities */
 290 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008) /* all dialects */
 291 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
 292 #define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */
 293 #define SMB2_SHARE_CAP_CLUSTER  cpu_to_le32(0x00000040) /* 3.0 */
 294 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
 295
 296 struct smb2_tree_disconnect_req {
 297         struct smb2_hdr hdr;
 298         __le16 StructureSize;   /* Must be 4 */
 299         __le16 Reserved;
 300 } __packed;
 301
 302 struct smb2_tree_disconnect_rsp {
 303         struct smb2_hdr hdr;
 304         __le16 StructureSize;   /* Must be 4 */
 305         __le16 Reserved;
 306 } __packed;
 307
 308 /* File Attrubutes */
 309 #define FILE_ATTRIBUTE_READONLY                 0x00000001
 310 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
 311 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
 312 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
 313 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
 314 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
 315 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
 316 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
 317 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
 318 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
 319 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
 320 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
 321 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
 322
 323 /* Oplock levels */
 324 #define SMB2_OPLOCK_LEVEL_NONE          0x00
 325 #define SMB2_OPLOCK_LEVEL_II            0x01
 326 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
 327 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
 328 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
 329 /* Non-spec internal type */
 330 #define SMB2_OPLOCK_LEVEL_NOCHANGE      0x99
 331
 332 /* Desired Access Flags */
 333 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
 334 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
 335 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
 336 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
 337 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
 338 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
 339 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
 340 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
 341 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
 342 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
 343 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
 344 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
 345 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
 346 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
 347 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
 348 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
 349 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
 350 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
 351 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
 352
 353 /* ShareAccess Flags */
 354 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
 355 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
 356 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
 357 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
 358
 359 /* CreateDisposition Flags */
 360 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
 361 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
 362 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
 363 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
 364 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
 365 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
 366
 367 /* CreateOptions Flags */
 368 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
 369 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
 370 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
 371 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
 372 #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
 373 #define FILE_SYNCHRONOUS_IO_ALERT_LE    cpu_to_le32(0x00000010)
 374 #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE        cpu_to_le32(0x00000020)
 375 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
 376 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
 377 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
 378 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
 379 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000)
 380 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
 381 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
 382 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
 383 #define FILE_RESERVE_OPFILTER_LE        cpu_to_le32(0x00100000)
 384 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
 385 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
 386 #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
 387
 388 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
 389                         | FILE_READ_ATTRIBUTES_LE)
 390 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
 391                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
 392 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
 393
 394 /* Impersonation Levels */
 395 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
 396 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
 397 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
 398 #define IL_DELEGATE             cpu_to_le32(0x00000003)
 399
 400 /* Create Context Values */
 401 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
 402 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
 403 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
 404 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
 405 #define SMB2_CREATE_ALLOCATION_SIZE             "AlSi"
 406 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
 407 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
 408 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
 409 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
 410
 411 struct smb2_create_req {
 412         struct smb2_hdr hdr;
 413         __le16 StructureSize;   /* Must be 57 */
 414         __u8   SecurityFlags;
 415         __u8   RequestedOplockLevel;
 416         __le32 ImpersonationLevel;
 417         __le64 SmbCreateFlags;
 418         __le64 Reserved;
 419         __le32 DesiredAccess;
 420         __le32 FileAttributes;
 421         __le32 ShareAccess;
 422         __le32 CreateDisposition;
 423         __le32 CreateOptions;
 424         __le16 NameOffset;
 425         __le16 NameLength;
 426         __le32 CreateContextsOffset;
 427         __le32 CreateContextsLength;
 428         __u8   Buffer[8];
 429 } __packed;
 430
 431 struct smb2_create_rsp {
 432         struct smb2_hdr hdr;
 433         __le16 StructureSize;   /* Must be 89 */
 434         __u8   OplockLevel;
 435         __u8   Reserved;
 436         __le32 CreateAction;
 437         __le64 CreationTime;
 438         __le64 LastAccessTime;
 439         __le64 LastWriteTime;
 440         __le64 ChangeTime;
 441         __le64 AllocationSize;
 442         __le64 EndofFile;
 443         __le32 FileAttributes;
 444         __le32 Reserved2;
 445         __u64  PersistentFileId; /* opaque endianness */
 446         __u64  VolatileFileId; /* opaque endianness */
 447         __le32 CreateContextsOffset;
 448         __le32 CreateContextsLength;
 449         __u8   Buffer[1];
 450 } __packed;
 451
 452 struct create_context {
 453         __le32 Next;
 454         __le16 NameOffset;
 455         __le16 NameLength;
 456         __le16 Reserved;
 457         __le16 DataOffset;
 458         __le32 DataLength;
 459         __u8 Buffer[0];
 460 } __packed;
 461
 462 #define SMB2_LEASE_NONE                 __constant_cpu_to_le32(0x00)
 463 #define SMB2_LEASE_READ_CACHING         __constant_cpu_to_le32(0x01)
 464 #define SMB2_LEASE_HANDLE_CACHING       __constant_cpu_to_le32(0x02)
 465 #define SMB2_LEASE_WRITE_CACHING        __constant_cpu_to_le32(0x04)
 466
 467 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02)
 468
 469 #define SMB2_LEASE_KEY_SIZE 16
 470
 471 struct lease_context {
 472         __le64 LeaseKeyLow;
 473         __le64 LeaseKeyHigh;
 474         __le32 LeaseState;
 475         __le32 LeaseFlags;
 476         __le64 LeaseDuration;
 477 } __packed;
 478
 479 struct create_lease {
 480         struct create_context ccontext;
 481         __u8   Name[8];
 482         struct lease_context lcontext;
 483 } __packed;
 484
 485 /* Currently defined values for close flags */
 486 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
 487 struct smb2_close_req {
 488         struct smb2_hdr hdr;
 489         __le16 StructureSize;   /* Must be 24 */
 490         __le16 Flags;
 491         __le32 Reserved;
 492         __u64  PersistentFileId; /* opaque endianness */
 493         __u64  VolatileFileId; /* opaque endianness */
 494 } __packed;
 495
 496 struct smb2_close_rsp {
 497         struct smb2_hdr hdr;
 498         __le16 StructureSize; /* 60 */
 499         __le16 Flags;
 500         __le32 Reserved;
 501         __le64 CreationTime;
 502         __le64 LastAccessTime;
 503         __le64 LastWriteTime;
 504         __le64 ChangeTime;
 505         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 506         __le64 EndOfFile;
 507         __le32 Attributes;
 508 } __packed;
 509
 510 struct smb2_flush_req {
 511         struct smb2_hdr hdr;
 512         __le16 StructureSize;   /* Must be 24 */
 513         __le16 Reserved1;
 514         __le32 Reserved2;
 515         __u64  PersistentFileId; /* opaque endianness */
 516         __u64  VolatileFileId; /* opaque endianness */
 517 } __packed;
 518
 519 struct smb2_flush_rsp {
 520         struct smb2_hdr hdr;
 521         __le16 StructureSize;
 522         __le16 Reserved;
 523 } __packed;
 524
 525 /* For read request Flags field below, following flag is defined for SMB3.02 */
 526 #define SMB2_READFLAG_READ_UNBUFFERED   0x01
 527
 528 /* Channel field for read and write: exactly one of following flags can be set*/
 529 #define SMB2_CHANNEL_NONE               0x00000000
 530 #define SMB2_CHANNEL_RDMA_V1            0x00000001 /* SMB3 or later */
 531 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000001 /* SMB3.02 or later */
 532
 533 struct smb2_read_req {
 534         struct smb2_hdr hdr;
 535         __le16 StructureSize; /* Must be 49 */
 536         __u8   Padding; /* offset from start of SMB2 header to place read */
 537         __u8   Flags; /* MBZ unless SMB3.02 or later */
 538         __le32 Length;
 539         __le64 Offset;
 540         __u64  PersistentFileId; /* opaque endianness */
 541         __u64  VolatileFileId; /* opaque endianness */
 542         __le32 MinimumCount;
 543         __le32 Channel; /* MBZ except for SMB3 or later */
 544         __le32 RemainingBytes;
 545         __le16 ReadChannelInfoOffset; /* Reserved MBZ */
 546         __le16 ReadChannelInfoLength; /* Reserved MBZ */
 547         __u8   Buffer[1];
 548 } __packed;
 549
 550 struct smb2_read_rsp {
 551         struct smb2_hdr hdr;
 552         __le16 StructureSize; /* Must be 17 */
 553         __u8   DataOffset;
 554         __u8   Reserved;
 555         __le32 DataLength;
 556         __le32 DataRemaining;
 557         __u32  Reserved2;
 558         __u8   Buffer[1];
 559 } __packed;
 560
 561 /* For write request Flags field below the following flags are defined: */
 562 #define SMB2_WRITEFLAG_WRITE_THROUGH    0x00000001      /* SMB2.1 or later */
 563 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002      /* SMB3.02 or later */
 564
 565 struct smb2_write_req {
 566         struct smb2_hdr hdr;
 567         __le16 StructureSize; /* Must be 49 */
 568         __le16 DataOffset; /* offset from start of SMB2 header to write data */
 569         __le32 Length;
 570         __le64 Offset;
 571         __u64  PersistentFileId; /* opaque endianness */
 572         __u64  VolatileFileId; /* opaque endianness */
 573         __le32 Channel; /* Reserved MBZ */
 574         __le32 RemainingBytes;
 575         __le16 WriteChannelInfoOffset; /* Reserved MBZ */
 576         __le16 WriteChannelInfoLength; /* Reserved MBZ */
 577         __le32 Flags;
 578         __u8   Buffer[1];
 579 } __packed;
 580
 581 struct smb2_write_rsp {
 582         struct smb2_hdr hdr;
 583         __le16 StructureSize; /* Must be 17 */
 584         __u8   DataOffset;
 585         __u8   Reserved;
 586         __le32 DataLength;
 587         __le32 DataRemaining;
 588         __u32  Reserved2;
 589         __u8   Buffer[1];
 590 } __packed;
 591
 592 #define SMB2_LOCKFLAG_SHARED_LOCK       0x0001
 593 #define SMB2_LOCKFLAG_EXCLUSIVE_LOCK    0x0002
 594 #define SMB2_LOCKFLAG_UNLOCK            0x0004
 595 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY  0x0010
 596
 597 struct smb2_lock_element {
 598         __le64 Offset;
 599         __le64 Length;
 600         __le32 Flags;
 601         __le32 Reserved;
 602 } __packed;
 603
 604 struct smb2_lock_req {
 605         struct smb2_hdr hdr;
 606         __le16 StructureSize; /* Must be 48 */
 607         __le16 LockCount;
 608         __le32 Reserved;
 609         __u64  PersistentFileId; /* opaque endianness */
 610         __u64  VolatileFileId; /* opaque endianness */
 611         /* Followed by at least one */
 612         struct smb2_lock_element locks[1];
 613 } __packed;
 614
 615 struct smb2_lock_rsp {
 616         struct smb2_hdr hdr;
 617         __le16 StructureSize; /* Must be 4 */
 618         __le16 Reserved;
 619 } __packed;
 620
 621 struct smb2_echo_req {
 622         struct smb2_hdr hdr;
 623         __le16 StructureSize;   /* Must be 4 */
 624         __u16  Reserved;
 625 } __packed;
 626
 627 struct smb2_echo_rsp {
 628         struct smb2_hdr hdr;
 629         __le16 StructureSize;   /* Must be 4 */
 630         __u16  Reserved;
 631 } __packed;
 632
 633 /* search (query_directory) Flags field */
 634 #define SMB2_RESTART_SCANS              0x01
 635 #define SMB2_RETURN_SINGLE_ENTRY        0x02
 636 #define SMB2_INDEX_SPECIFIED            0x04
 637 #define SMB2_REOPEN                     0x10
 638
 639 struct smb2_query_directory_req {
 640         struct smb2_hdr hdr;
 641         __le16 StructureSize; /* Must be 33 */
 642         __u8   FileInformationClass;
 643         __u8   Flags;
 644         __le32 FileIndex;
 645         __u64  PersistentFileId; /* opaque endianness */
 646         __u64  VolatileFileId; /* opaque endianness */
 647         __le16 FileNameOffset;
 648         __le16 FileNameLength;
 649         __le32 OutputBufferLength;
 650         __u8   Buffer[1];
 651 } __packed;
 652
 653 struct smb2_query_directory_rsp {
 654         struct smb2_hdr hdr;
 655         __le16 StructureSize; /* Must be 9 */
 656         __le16 OutputBufferOffset;
 657         __le32 OutputBufferLength;
 658         __u8   Buffer[1];
 659 } __packed;
 660
 661 /* Possible InfoType values */
 662 #define SMB2_O_INFO_FILE        0x01
 663 #define SMB2_O_INFO_FILESYSTEM  0x02
 664 #define SMB2_O_INFO_SECURITY    0x03
 665 #define SMB2_O_INFO_QUOTA       0x04
 666
 667 struct smb2_query_info_req {
 668         struct smb2_hdr hdr;
 669         __le16 StructureSize; /* Must be 41 */
 670         __u8   InfoType;
 671         __u8   FileInfoClass;
 672         __le32 OutputBufferLength;
 673         __le16 InputBufferOffset;
 674         __u16  Reserved;
 675         __le32 InputBufferLength;
 676         __le32 AdditionalInformation;
 677         __le32 Flags;
 678         __u64  PersistentFileId; /* opaque endianness */
 679         __u64  VolatileFileId; /* opaque endianness */
 680         __u8   Buffer[1];
 681 } __packed;
 682
 683 struct smb2_query_info_rsp {
 684         struct smb2_hdr hdr;
 685         __le16 StructureSize; /* Must be 9 */
 686         __le16 OutputBufferOffset;
 687         __le32 OutputBufferLength;
 688         __u8   Buffer[1];
 689 } __packed;
 690
 691 struct smb2_set_info_req {
 692         struct smb2_hdr hdr;
 693         __le16 StructureSize; /* Must be 33 */
 694         __u8   InfoType;
 695         __u8   FileInfoClass;
 696         __le32 BufferLength;
 697         __le16 BufferOffset;
 698         __u16  Reserved;
 699         __le32 AdditionalInformation;
 700         __u64  PersistentFileId; /* opaque endianness */
 701         __u64  VolatileFileId; /* opaque endianness */
 702         __u8   Buffer[1];
 703 } __packed;
 704
 705 struct smb2_set_info_rsp {
 706         struct smb2_hdr hdr;
 707         __le16 StructureSize; /* Must be 2 */
 708 } __packed;
 709
 710 struct smb2_oplock_break {
 711         struct smb2_hdr hdr;
 712         __le16 StructureSize; /* Must be 24 */
 713         __u8   OplockLevel;
 714         __u8   Reserved;
 715         __le32 Reserved2;
 716         __u64  PersistentFid;
 717         __u64  VolatileFid;
 718 } __packed;
 719
 720 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
 721
 722 struct smb2_lease_break {
 723         struct smb2_hdr hdr;
 724         __le16 StructureSize; /* Must be 44 */
 725         __le16 Reserved;
 726         __le32 Flags;
 727         __u8   LeaseKey[16];
 728         __le32 CurrentLeaseState;
 729         __le32 NewLeaseState;
 730         __le32 BreakReason;
 731         __le32 AccessMaskHint;
 732         __le32 ShareMaskHint;
 733 } __packed;
 734
 735 struct smb2_lease_ack {
 736         struct smb2_hdr hdr;
 737         __le16 StructureSize; /* Must be 36 */
 738         __le16 Reserved;
 739         __le32 Flags;
 740         __u8   LeaseKey[16];
 741         __le32 LeaseState;
 742         __le64 LeaseDuration;
 743 } __packed;
 744
 745 /*
 746  *      PDU infolevel structure definitions
 747  *      BB consider moving to a different header
 748  */
 749
 750 /* File System Information Classes */
 751 #define FS_VOLUME_INFORMATION           1 /* Query */
 752 #define FS_LABEL_INFORMATION            2 /* Set */
 753 #define FS_SIZE_INFORMATION             3 /* Query */
 754 #define FS_DEVICE_INFORMATION           4 /* Query */
 755 #define FS_ATTRIBUTE_INFORMATION        5 /* Query */
 756 #define FS_CONTROL_INFORMATION          6 /* Query, Set */
 757 #define FS_FULL_SIZE_INFORMATION        7 /* Query */
 758 #define FS_OBJECT_ID_INFORMATION        8 /* Query, Set */
 759 #define FS_DRIVER_PATH_INFORMATION      9 /* Query */
 760
 761 struct smb2_fs_full_size_info {
 762         __le64 TotalAllocationUnits;
 763         __le64 CallerAvailableAllocationUnits;
 764         __le64 ActualAvailableAllocationUnits;
 765         __le32 SectorsPerAllocationUnit;
 766         __le32 BytesPerSector;
 767 } __packed;
 768
 769 /* partial list of QUERY INFO levels */
 770 #define FILE_DIRECTORY_INFORMATION      1
 771 #define FILE_FULL_DIRECTORY_INFORMATION 2
 772 #define FILE_BOTH_DIRECTORY_INFORMATION 3
 773 #define FILE_BASIC_INFORMATION          4
 774 #define FILE_STANDARD_INFORMATION       5
 775 #define FILE_INTERNAL_INFORMATION       6
 776 #define FILE_EA_INFORMATION             7
 777 #define FILE_ACCESS_INFORMATION         8
 778 #define FILE_NAME_INFORMATION           9
 779 #define FILE_RENAME_INFORMATION         10
 780 #define FILE_LINK_INFORMATION           11
 781 #define FILE_NAMES_INFORMATION          12
 782 #define FILE_DISPOSITION_INFORMATION    13
 783 #define FILE_POSITION_INFORMATION       14
 784 #define FILE_FULL_EA_INFORMATION        15
 785 #define FILE_MODE_INFORMATION           16
 786 #define FILE_ALIGNMENT_INFORMATION      17
 787 #define FILE_ALL_INFORMATION            18
 788 #define FILE_ALLOCATION_INFORMATION     19
 789 #define FILE_END_OF_FILE_INFORMATION    20
 790 #define FILE_ALTERNATE_NAME_INFORMATION 21
 791 #define FILE_STREAM_INFORMATION         22
 792 #define FILE_PIPE_INFORMATION           23
 793 #define FILE_PIPE_LOCAL_INFORMATION     24
 794 #define FILE_PIPE_REMOTE_INFORMATION    25
 795 #define FILE_MAILSLOT_QUERY_INFORMATION 26
 796 #define FILE_MAILSLOT_SET_INFORMATION   27
 797 #define FILE_COMPRESSION_INFORMATION    28
 798 #define FILE_OBJECT_ID_INFORMATION      29
 799 /* Number 30 not defined in documents */
 800 #define FILE_MOVE_CLUSTER_INFORMATION   31
 801 #define FILE_QUOTA_INFORMATION          32
 802 #define FILE_REPARSE_POINT_INFORMATION  33
 803 #define FILE_NETWORK_OPEN_INFORMATION   34
 804 #define FILE_ATTRIBUTE_TAG_INFORMATION  35
 805 #define FILE_TRACKING_INFORMATION       36
 806 #define FILEID_BOTH_DIRECTORY_INFORMATION 37
 807 #define FILEID_FULL_DIRECTORY_INFORMATION 38
 808 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
 809 #define FILE_SHORT_NAME_INFORMATION     40
 810 #define FILE_SFIO_RESERVE_INFORMATION   44
 811 #define FILE_SFIO_VOLUME_INFORMATION    45
 812 #define FILE_HARD_LINK_INFORMATION      46
 813 #define FILE_NORMALIZED_NAME_INFORMATION 48
 814 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
 815 #define FILE_STANDARD_LINK_INFORMATION  54
 816
 817 struct smb2_file_internal_info {
 818         __le64 IndexNumber;
 819 } __packed; /* level 6 Query */
 820
 821 struct smb2_file_rename_info { /* encoding of request for level 10 */
 822         __u8   ReplaceIfExists; /* 1 = replace existing target with new */
 823                                 /* 0 = fail if target already exists */
 824         __u8   Reserved[7];
 825         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
 826         __le32 FileNameLength;
 827         char   FileName[0];     /* New name to be assigned */
 828 } __packed; /* level 10 Set */
 829
 830 struct smb2_file_link_info { /* encoding of request for level 11 */
 831         __u8   ReplaceIfExists; /* 1 = replace existing link with new */
 832                                 /* 0 = fail if link already exists */
 833         __u8   Reserved[7];
 834         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
 835         __le32 FileNameLength;
 836         char   FileName[0];     /* Name to be assigned to new link */
 837 } __packed; /* level 11 Set */
 838
 839 /*
 840  * This level 18, although with struct with same name is different from cifs
 841  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
 842  * CurrentByteOffset.
 843  */
 844 struct smb2_file_all_info { /* data block encoding of response to level 18 */
 845         __le64 CreationTime;    /* Beginning of FILE_BASIC_INFO equivalent */
 846         __le64 LastAccessTime;
 847         __le64 LastWriteTime;
 848         __le64 ChangeTime;
 849         __le32 Attributes;
 850         __u32  Pad1;            /* End of FILE_BASIC_INFO_INFO equivalent */
 851         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 852         __le64 EndOfFile;       /* size ie offset to first free byte in file */
 853         __le32 NumberOfLinks;   /* hard links */
 854         __u8   DeletePending;
 855         __u8   Directory;
 856         __u16  Pad2;            /* End of FILE_STANDARD_INFO equivalent */
 857         __le64 IndexNumber;
 858         __le32 EASize;
 859         __le32 AccessFlags;
 860         __le64 CurrentByteOffset;
 861         __le32 Mode;
 862         __le32 AlignmentRequirement;
 863         __le32 FileNameLength;
 864         char   FileName[1];
 865 } __packed; /* level 18 Query */
 866
 867 struct smb2_file_eof_info { /* encoding of request for level 10 */
 868         __le64 EndOfFile; /* new end of file value */
 869 } __packed; /* level 20 Set */
 870
 871 #endif                          /* _SMB2PDU_H */