fs/smb/common/smb2pdu.h

   1 /* SPDX-License-Identifier: LGPL-2.1 */
   2 #ifndef _COMMON_SMB2PDU_H
   3 #define _COMMON_SMB2PDU_H
   4
   5 /*
   6  * Note that, due to trying to use names similar to the protocol specifications,
   7  * there are many mixed case field names in the structures below.  Although
   8  * this does not match typical Linux kernel style, it is necessary to be
   9  * able to match against the protocol specification.
  10  *
  11  * SMB2 commands
  12  * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
  13  * (ie no useful data other than the SMB error code itself) and are marked such.
  14  * Knowing this helps avoid response buffer allocations and copy in some cases.
  15  */
  16
  17 /* List of commands in host endian */
  18 #define SMB2_NEGOTIATE_HE       0x0000
  19 #define SMB2_SESSION_SETUP_HE   0x0001
  20 #define SMB2_LOGOFF_HE          0x0002 /* trivial request/resp */
  21 #define SMB2_TREE_CONNECT_HE    0x0003
  22 #define SMB2_TREE_DISCONNECT_HE 0x0004 /* trivial req/resp */
  23 #define SMB2_CREATE_HE          0x0005
  24 #define SMB2_CLOSE_HE           0x0006
  25 #define SMB2_FLUSH_HE           0x0007 /* trivial resp */
  26 #define SMB2_READ_HE            0x0008
  27 #define SMB2_WRITE_HE           0x0009
  28 #define SMB2_LOCK_HE            0x000A
  29 #define SMB2_IOCTL_HE           0x000B
  30 #define SMB2_CANCEL_HE          0x000C
  31 #define SMB2_ECHO_HE            0x000D
  32 #define SMB2_QUERY_DIRECTORY_HE 0x000E
  33 #define SMB2_CHANGE_NOTIFY_HE   0x000F
  34 #define SMB2_QUERY_INFO_HE      0x0010
  35 #define SMB2_SET_INFO_HE        0x0011
  36 #define SMB2_OPLOCK_BREAK_HE    0x0012
  37 #define SMB2_SERVER_TO_CLIENT_NOTIFICATION 0x0013
  38
  39 /* The same list in little endian */
  40 #define SMB2_NEGOTIATE          cpu_to_le16(SMB2_NEGOTIATE_HE)
  41 #define SMB2_SESSION_SETUP      cpu_to_le16(SMB2_SESSION_SETUP_HE)
  42 #define SMB2_LOGOFF             cpu_to_le16(SMB2_LOGOFF_HE)
  43 #define SMB2_TREE_CONNECT       cpu_to_le16(SMB2_TREE_CONNECT_HE)
  44 #define SMB2_TREE_DISCONNECT    cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
  45 #define SMB2_CREATE             cpu_to_le16(SMB2_CREATE_HE)
  46 #define SMB2_CLOSE              cpu_to_le16(SMB2_CLOSE_HE)
  47 #define SMB2_FLUSH              cpu_to_le16(SMB2_FLUSH_HE)
  48 #define SMB2_READ               cpu_to_le16(SMB2_READ_HE)
  49 #define SMB2_WRITE              cpu_to_le16(SMB2_WRITE_HE)
  50 #define SMB2_LOCK               cpu_to_le16(SMB2_LOCK_HE)
  51 #define SMB2_IOCTL              cpu_to_le16(SMB2_IOCTL_HE)
  52 #define SMB2_CANCEL             cpu_to_le16(SMB2_CANCEL_HE)
  53 #define SMB2_ECHO               cpu_to_le16(SMB2_ECHO_HE)
  54 #define SMB2_QUERY_DIRECTORY    cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
  55 #define SMB2_CHANGE_NOTIFY      cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
  56 #define SMB2_QUERY_INFO         cpu_to_le16(SMB2_QUERY_INFO_HE)
  57 #define SMB2_SET_INFO           cpu_to_le16(SMB2_SET_INFO_HE)
  58 #define SMB2_OPLOCK_BREAK       cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
  59
  60 #define SMB2_INTERNAL_CMD       cpu_to_le16(0xFFFF)
  61
  62 #define NUMBER_OF_SMB2_COMMANDS 0x0013
  63
  64 /*
  65  * Size of the session key (crypto key encrypted with the password
  66  */
  67 #define SMB2_NTLMV2_SESSKEY_SIZE        16
  68 #define SMB2_SIGNATURE_SIZE             16
  69 #define SMB2_HMACSHA256_SIZE            32
  70 #define SMB2_CMACAES_SIZE               16
  71 #define SMB3_GCM128_CRYPTKEY_SIZE       16
  72 #define SMB3_GCM256_CRYPTKEY_SIZE       32
  73
  74 /*
  75  * Size of the smb3 encryption/decryption keys
  76  * This size is big enough to store any cipher key types.
  77  */
  78 #define SMB3_ENC_DEC_KEY_SIZE           32
  79
  80 /*
  81  * Size of the smb3 signing key
  82  */
  83 #define SMB3_SIGN_KEY_SIZE              16
  84
  85 #define CIFS_CLIENT_CHALLENGE_SIZE      8
  86
  87 /* Maximum buffer size value we can send with 1 credit */
  88 #define SMB2_MAX_BUFFER_SIZE 65536
  89
  90 /*
  91  * The default wsize is 1M for SMB2 (and for some CIFS cases).
  92  * find_get_pages seems to return a maximum of 256
  93  * pages in a single call. With PAGE_SIZE == 4k, this means we can
  94  * fill a single wsize request with a single call.
  95  */
  96 #define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
  97
  98 /*
  99  * SMB2 Header Definition
 100  *
 101  * "MBZ" :  Must be Zero
 102  * "BB"  :  BugBug, Something to check/review/analyze later
 103  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
 104  *
 105  */
 106
 107 #define __SMB2_HEADER_STRUCTURE_SIZE    64
 108 #define SMB2_HEADER_STRUCTURE_SIZE                              \
 109         cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
 110
 111 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 112 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
 113 #define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
 114
 115 /*
 116  *      SMB2 flag definitions
 117  */
 118 #define SMB2_FLAGS_SERVER_TO_REDIR      cpu_to_le32(0x00000001)
 119 #define SMB2_FLAGS_ASYNC_COMMAND        cpu_to_le32(0x00000002)
 120 #define SMB2_FLAGS_RELATED_OPERATIONS   cpu_to_le32(0x00000004)
 121 #define SMB2_FLAGS_SIGNED               cpu_to_le32(0x00000008)
 122 #define SMB2_FLAGS_PRIORITY_MASK        cpu_to_le32(0x00000070) /* SMB3.1.1 */
 123 #define SMB2_FLAGS_DFS_OPERATIONS       cpu_to_le32(0x10000000)
 124 #define SMB2_FLAGS_REPLAY_OPERATION     cpu_to_le32(0x20000000) /* SMB3 & up */
 125
 126 /*
 127  *      Definitions for SMB2 Protocol Data Units (network frames)
 128  *
 129  *  See MS-SMB2.PDF specification for protocol details.
 130  *  The Naming convention is the lower case version of the SMB2
 131  *  command code name for the struct. Note that structures must be packed.
 132  *
 133  */
 134
 135 /* See MS-SMB2 section 2.2.1 */
 136 struct smb2_hdr {
 137         __le32 ProtocolId;      /* 0xFE 'S' 'M' 'B' */
 138         __le16 StructureSize;   /* 64 */
 139         __le16 CreditCharge;    /* MBZ */
 140         __le32 Status;          /* Error from server */
 141         __le16 Command;
 142         __le16 CreditRequest;   /* CreditResponse */
 143         __le32 Flags;
 144         __le32 NextCommand;
 145         __le64 MessageId;
 146         union {
 147                 struct {
 148                         __le32 ProcessId;
 149                         __le32  TreeId;
 150                 } __packed SyncId;
 151                 __le64  AsyncId;
 152         } __packed Id;
 153         __le64  SessionId;
 154         __u8   Signature[16];
 155 } __packed;
 156
 157 struct smb3_hdr_req {
 158         __le32 ProtocolId;      /* 0xFE 'S' 'M' 'B' */
 159         __le16 StructureSize;   /* 64 */
 160         __le16 CreditCharge;    /* MBZ */
 161         __le16 ChannelSequence; /* See MS-SMB2 3.2.4.1 and 3.2.7.1 */
 162         __le16 Reserved;
 163         __le16 Command;
 164         __le16 CreditRequest;   /* CreditResponse */
 165         __le32 Flags;
 166         __le32 NextCommand;
 167         __le64 MessageId;
 168         union {
 169                 struct {
 170                         __le32 ProcessId;
 171                         __le32  TreeId;
 172                 } __packed SyncId;
 173                 __le64  AsyncId;
 174         } __packed Id;
 175         __le64  SessionId;
 176         __u8   Signature[16];
 177 } __packed;
 178
 179 struct smb2_pdu {
 180         struct smb2_hdr hdr;
 181         __le16 StructureSize2; /* size of wct area (varies, request specific) */
 182 } __packed;
 183
 184 #define SMB2_ERROR_STRUCTURE_SIZE2      9
 185 #define SMB2_ERROR_STRUCTURE_SIZE2_LE   cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)
 186
 187 struct smb2_err_rsp {
 188         struct smb2_hdr hdr;
 189         __le16 StructureSize;
 190         __u8   ErrorContextCount;
 191         __u8   Reserved;
 192         __le32 ByteCount;  /* even if zero, at least one byte follows */
 193         __u8   ErrorData[];  /* variable length */
 194 } __packed;
 195
 196 #define SMB3_AES_CCM_NONCE 11
 197 #define SMB3_AES_GCM_NONCE 12
 198
 199 /* Transform flags (for 3.0 dialect this flag indicates CCM */
 200 #define TRANSFORM_FLAG_ENCRYPTED        0x0001
 201 struct smb2_transform_hdr {
 202         __le32 ProtocolId;      /* 0xFD 'S' 'M' 'B' */
 203         __u8   Signature[16];
 204         __u8   Nonce[16];
 205         __le32 OriginalMessageSize;
 206         __u16  Reserved1;
 207         __le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
 208         __le64  SessionId;
 209 } __packed;
 210
 211 /*
 212  * These are simplified versions from the spec, as we don't need a fully fledged
 213  * form of both unchained and chained structs.
 214  *
 215  * Moreover, even in chained compressed payloads, the initial compression header
 216  * has the form of the unchained one -- i.e. it never has the
 217  * OriginalPayloadSize field and ::Offset field always represent an offset
 218  * (instead of a length, as it is in the chained header).
 219  *
 220  * See MS-SMB2 2.2.42 for more details.
 221  */
 222 #define SMB2_COMPRESSION_FLAG_NONE      0x0000
 223 #define SMB2_COMPRESSION_FLAG_CHAINED   0x0001
 224
 225 struct smb2_compression_hdr {
 226         __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
 227         __le32 OriginalCompressedSegmentSize;
 228         __le16 CompressionAlgorithm;
 229         __le16 Flags;
 230         __le32 Offset; /* this is the size of the uncompressed SMB2 header below */
 231         /* uncompressed SMB2 header (READ or WRITE) goes here */
 232         /* compressed data goes here */
 233 } __packed;
 234
 235 /*
 236  * ... OTOH, set compression payload header to always have OriginalPayloadSize
 237  * as it's easier to pass the struct size minus sizeof(OriginalPayloadSize)
 238  * than to juggle around the header/data memory.
 239  */
 240 struct smb2_compression_payload_hdr {
 241         __le16  CompressionAlgorithm;
 242         __le16  Flags;
 243         __le32  Length; /* length of compressed playload including field below if present */
 244         __le32 OriginalPayloadSize; /* accounted when LZNT1, LZ77, LZ77+Huffman */
 245 } __packed;
 246
 247 struct smb2_compression_pattern_v1 {
 248         __u8    Pattern;
 249         __u8    Reserved1;
 250         __le16  Reserved2;
 251         __le32  Repetitions;
 252 } __packed;
 253
 254 /* See MS-SMB2 section 2.2.9.2 */
 255 /* Context Types */
 256 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
 257 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
 258
 259 struct tree_connect_contexts {
 260         __le16 ContextType;
 261         __le16 DataLength;
 262         __le32 Reserved;
 263         __u8   Data[];
 264 } __packed;
 265
 266 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
 267 struct smb3_blob_data {
 268         __le16 BlobSize;
 269         __u8   BlobData[];
 270 } __packed;
 271
 272 /* Valid values for Attr */
 273 #define SE_GROUP_MANDATORY              0x00000001
 274 #define SE_GROUP_ENABLED_BY_DEFAULT     0x00000002
 275 #define SE_GROUP_ENABLED                0x00000004
 276 #define SE_GROUP_OWNER                  0x00000008
 277 #define SE_GROUP_USE_FOR_DENY_ONLY      0x00000010
 278 #define SE_GROUP_INTEGRITY              0x00000020
 279 #define SE_GROUP_INTEGRITY_ENABLED      0x00000040
 280 #define SE_GROUP_RESOURCE               0x20000000
 281 #define SE_GROUP_LOGON_ID               0xC0000000
 282
 283 struct sid_array_data {
 284         __le16 SidAttrCount;
 285         /* SidAttrList - array of sid_attr_data structs */
 286 } __packed;
 287
 288 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
 289 struct sid_attr_data {
 290         __le16 BlobSize;
 291         __u8 BlobData[];
 292         /* __le32 Attr */
 293 } __packed;
 294
 295 /*
 296  * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
 297  * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
 298  */
 299
 300 struct privilege_array_data {
 301         __le16 PrivilegeCount;
 302         /* array of privilege_data structs */
 303 } __packed;
 304
 305 struct remoted_identity_tcon_context {
 306         __le16 TicketType; /* must be 0x0001 */
 307         __le16 TicketSize; /* total size of this struct */
 308         __le16 User; /* offset to SID_ATTR_DATA struct with user info */
 309         __le16 UserName; /* offset to null terminated Unicode username string */
 310         __le16 Domain; /* offset to null terminated Unicode domain name */
 311         __le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
 312         __le16 RestrictedGroups; /* similar to above */
 313         __le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
 314         __le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
 315         __le16 Owner; /* offset to BLOB_DATA struct */
 316         __le16 DefaultDacl; /* offset to BLOB_DATA struct */
 317         __le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
 318         __le16 UserClaims; /* offset to BLOB_DATA struct */
 319         __le16 DeviceClaims; /* offset to BLOB_DATA struct */
 320         __u8   TicketInfo[]; /* variable length buf - remoted identity data */
 321 } __packed;
 322
 323 struct smb2_tree_connect_req_extension {
 324         __le32 TreeConnectContextOffset;
 325         __le16 TreeConnectContextCount;
 326         __u8  Reserved[10];
 327         __u8  PathName[]; /* variable sized array */
 328         /* followed by array of TreeConnectContexts */
 329 } __packed;
 330
 331 /* Flags/Reserved for SMB3.1.1 */
 332 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
 333 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
 334 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
 335
 336 struct smb2_tree_connect_req {
 337         struct smb2_hdr hdr;
 338         __le16 StructureSize;   /* Must be 9 */
 339         __le16 Flags;           /* Flags in SMB3.1.1 */
 340         __le16 PathOffset;
 341         __le16 PathLength;
 342         __u8   Buffer[];        /* variable length */
 343 } __packed;
 344
 345 /* Possible ShareType values */
 346 #define SMB2_SHARE_TYPE_DISK    0x01
 347 #define SMB2_SHARE_TYPE_PIPE    0x02
 348 #define SMB2_SHARE_TYPE_PRINT   0x03
 349
 350 /*
 351  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 352  * must be set (any of the remaining, SHI1005, flags may be set individually
 353  * or in combination.
 354  */
 355 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
 356 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
 357 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
 358 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
 359 #define SHI1005_FLAGS_DFS                               0x00000001
 360 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
 361 #define SMB2_SHAREFLAG_RESTRICT_EXCLUSIVE_OPENS         0x00000100
 362 #define SMB2_SHAREFLAG_FORCE_SHARED_DELETE              0x00000200
 363 #define SMB2_SHAREFLAG_ALLOW_NAMESPACE_CACHING          0x00000400
 364 #define SMB2_SHAREFLAG_ACCESS_BASED_DIRECTORY_ENUM      0x00000800
 365 #define SMB2_SHAREFLAG_FORCE_LEVELII_OPLOCK             0x00001000
 366 #define SMB2_SHAREFLAG_ENABLE_HASH_V1                   0x00002000
 367 #define SMB2_SHAREFLAG_ENABLE_HASH_V2                   0x00004000
 368 #define SHI1005_FLAGS_ENCRYPT_DATA                      0x00008000
 369 #define SMB2_SHAREFLAG_IDENTITY_REMOTING                0x00040000 /* 3.1.1 */
 370 #define SMB2_SHAREFLAG_COMPRESS_DATA                    0x00100000 /* 3.1.1 */
 371 #define SMB2_SHAREFLAG_ISOLATED_TRANSPORT               0x00200000
 372 #define SHI1005_FLAGS_ALL                               0x0034FF33
 373
 374 /* Possible share capabilities */
 375 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008) /* all dialects */
 376 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
 377 #define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */
 378 #define SMB2_SHARE_CAP_CLUSTER  cpu_to_le32(0x00000040) /* 3.0 */
 379 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
 380 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
 381
 382 struct smb2_tree_connect_rsp {
 383         struct smb2_hdr hdr;
 384         __le16 StructureSize;   /* Must be 16 */
 385         __u8   ShareType;       /* see below */
 386         __u8   Reserved;
 387         __le32 ShareFlags;      /* see below */
 388         __le32 Capabilities;    /* see below */
 389         __le32 MaximalAccess;
 390 } __packed;
 391
 392 struct smb2_tree_disconnect_req {
 393         struct smb2_hdr hdr;
 394         __le16 StructureSize;   /* Must be 4 */
 395         __le16 Reserved;
 396 } __packed;
 397
 398 struct smb2_tree_disconnect_rsp {
 399         struct smb2_hdr hdr;
 400         __le16 StructureSize;   /* Must be 4 */
 401         __le16 Reserved;
 402 } __packed;
 403
 404
 405 /*
 406  * SMB2_NEGOTIATE_PROTOCOL  See MS-SMB2 section 2.2.3
 407  */
 408 /* SecurityMode flags */
 409 #define SMB2_NEGOTIATE_SIGNING_ENABLED     0x0001
 410 #define SMB2_NEGOTIATE_SIGNING_ENABLED_LE  cpu_to_le16(0x0001)
 411 #define SMB2_NEGOTIATE_SIGNING_REQUIRED    0x0002
 412 #define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002)
 413 #define SMB2_SEC_MODE_FLAGS_ALL            0x0003
 414
 415 /* Capabilities flags */
 416 #define SMB2_GLOBAL_CAP_DFS             0x00000001
 417 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
 418 #define SMB2_GLOBAL_CAP_LARGE_MTU       0x00000004 /* Resp only New to SMB2.1 */
 419 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL   0x00000008 /* New to SMB3 */
 420 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
 421 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
 422 #define SMB2_GLOBAL_CAP_ENCRYPTION      0x00000040 /* New to SMB3 */
 423 #define SMB2_GLOBAL_CAP_NOTIFICATIONS   0x00000080 /* New to SMB3.1.1 */
 424 /* Internal types */
 425 #define SMB2_NT_FIND                    0x00100000
 426 #define SMB2_LARGE_FILES                0x00200000
 427
 428 #define SMB2_CLIENT_GUID_SIZE           16
 429 #define SMB2_CREATE_GUID_SIZE           16
 430
 431 /* Dialects */
 432 #define SMB10_PROT_ID  0x0000 /* local only, not sent on wire w/CIFS negprot */
 433 #define SMB20_PROT_ID  0x0202
 434 #define SMB21_PROT_ID  0x0210
 435 #define SMB2X_PROT_ID  0x02FF
 436 #define SMB30_PROT_ID  0x0300
 437 #define SMB302_PROT_ID 0x0302
 438 #define SMB311_PROT_ID 0x0311
 439 #define BAD_PROT_ID    0xFFFF
 440
 441 #define SMB311_SALT_SIZE                        32
 442 /* Hash Algorithm Types */
 443 #define SMB2_PREAUTH_INTEGRITY_SHA512   cpu_to_le16(0x0001)
 444 #define SMB2_PREAUTH_HASH_SIZE 64
 445
 446 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
 447 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES     cpu_to_le16(1)
 448 #define SMB2_ENCRYPTION_CAPABILITIES            cpu_to_le16(2)
 449 #define SMB2_COMPRESSION_CAPABILITIES           cpu_to_le16(3)
 450 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID       cpu_to_le16(5)
 451 #define SMB2_TRANSPORT_CAPABILITIES             cpu_to_le16(6)
 452 #define SMB2_RDMA_TRANSFORM_CAPABILITIES        cpu_to_le16(7)
 453 #define SMB2_SIGNING_CAPABILITIES               cpu_to_le16(8)
 454 #define SMB2_POSIX_EXTENSIONS_AVAILABLE         cpu_to_le16(0x100)
 455
 456 struct smb2_neg_context {
 457         __le16  ContextType;
 458         __le16  DataLength;
 459         __le32  Reserved;
 460         /* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */
 461 } __packed;
 462
 463 /*
 464  * SaltLength that the server send can be zero, so the only three required
 465  * fields (all __le16) end up six bytes total, so the minimum context data len
 466  * in the response is six bytes which accounts for
 467  *
 468  *      HashAlgorithmCount, SaltLength, and 1 HashAlgorithm.
 469  */
 470 #define MIN_PREAUTH_CTXT_DATA_LEN 6
 471
 472 struct smb2_preauth_neg_context {
 473         __le16  ContextType; /* 1 */
 474         __le16  DataLength;
 475         __le32  Reserved;
 476         __le16  HashAlgorithmCount; /* 1 */
 477         __le16  SaltLength;
 478         __le16  HashAlgorithms; /* HashAlgorithms[0] since only one defined */
 479         __u8    Salt[SMB311_SALT_SIZE];
 480 } __packed;
 481
 482 /* Encryption Algorithms Ciphers */
 483 #define SMB2_ENCRYPTION_AES128_CCM      cpu_to_le16(0x0001)
 484 #define SMB2_ENCRYPTION_AES128_GCM      cpu_to_le16(0x0002)
 485 #define SMB2_ENCRYPTION_AES256_CCM      cpu_to_le16(0x0003)
 486 #define SMB2_ENCRYPTION_AES256_GCM      cpu_to_le16(0x0004)
 487
 488 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
 489 #define MIN_ENCRYPT_CTXT_DATA_LEN       4
 490 struct smb2_encryption_neg_context {
 491         __le16  ContextType; /* 2 */
 492         __le16  DataLength;
 493         __le32  Reserved;
 494         /* CipherCount usually 2, but can be 3 when AES256-GCM enabled */
 495         __le16  CipherCount; /* AES128-GCM and AES128-CCM by default */
 496         __le16  Ciphers[];
 497 } __packed;
 498
 499 /* See MS-SMB2 2.2.3.1.3 */
 500 #define SMB3_COMPRESS_NONE      cpu_to_le16(0x0000)
 501 #define SMB3_COMPRESS_LZNT1     cpu_to_le16(0x0001)
 502 #define SMB3_COMPRESS_LZ77      cpu_to_le16(0x0002)
 503 #define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003)
 504 /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
 505 #define SMB3_COMPRESS_PATTERN   cpu_to_le16(0x0004) /* Pattern_V1 */
 506 #define SMB3_COMPRESS_LZ4       cpu_to_le16(0x0005)
 507
 508 /* Compression Flags */
 509 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE         cpu_to_le32(0x00000000)
 510 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED      cpu_to_le32(0x00000001)
 511
 512 struct smb2_compression_capabilities_context {
 513         __le16  ContextType; /* 3 */
 514         __le16  DataLength;
 515         __le32  Reserved;
 516         __le16  CompressionAlgorithmCount;
 517         __le16  Padding;
 518         __le32  Flags;
 519         __le16  CompressionAlgorithms[3];
 520         __u16   Pad;  /* Some servers require pad to DataLen multiple of 8 */
 521         /* Check if pad needed */
 522 } __packed;
 523
 524 /*
 525  * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
 526  * Its struct simply contains NetName, an array of Unicode characters
 527  */
 528 struct smb2_netname_neg_context {
 529         __le16  ContextType; /* 5 */
 530         __le16  DataLength;
 531         __le32  Reserved;
 532         __le16  NetName[]; /* hostname of target converted to UCS-2 */
 533 } __packed;
 534
 535 /*
 536  * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
 537  * and 2.2.4.1.5
 538  */
 539
 540 /* Flags */
 541 #define SMB2_ACCEPT_TRANSPORT_LEVEL_SECURITY    0x00000001
 542
 543 struct smb2_transport_capabilities_context {
 544         __le16  ContextType; /* 6 */
 545         __le16  DataLength;
 546         __u32   Reserved;
 547         __le32  Flags;
 548         __u32   Pad;
 549 } __packed;
 550
 551 /*
 552  * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
 553  * and 2.2.4.1.6
 554  */
 555
 556 /* RDMA Transform IDs */
 557 #define SMB2_RDMA_TRANSFORM_NONE        0x0000
 558 #define SMB2_RDMA_TRANSFORM_ENCRYPTION  0x0001
 559 #define SMB2_RDMA_TRANSFORM_SIGNING     0x0002
 560
 561 struct smb2_rdma_transform_capabilities_context {
 562         __le16  ContextType; /* 7 */
 563         __le16  DataLength;
 564         __u32   Reserved;
 565         __le16  TransformCount;
 566         __u16   Reserved1;
 567         __u32   Reserved2;
 568         __le16  RDMATransformIds[];
 569 } __packed;
 570
 571 /*
 572  * For signing capabilities context see MS-SMB2 2.2.3.1.7
 573  * and 2.2.4.1.7
 574  */
 575
 576 /* Signing algorithms */
 577 #define SIGNING_ALG_HMAC_SHA256    0
 578 #define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0)
 579 #define SIGNING_ALG_AES_CMAC       1
 580 #define SIGNING_ALG_AES_CMAC_LE    cpu_to_le16(1)
 581 #define SIGNING_ALG_AES_GMAC       2
 582 #define SIGNING_ALG_AES_GMAC_LE    cpu_to_le16(2)
 583
 584 struct smb2_signing_capabilities {
 585         __le16  ContextType; /* 8 */
 586         __le16  DataLength;
 587         __le32  Reserved;
 588         __le16  SigningAlgorithmCount;
 589         __le16  SigningAlgorithms[];
 590         /*  Followed by padding to 8 byte boundary (required by some servers) */
 591 } __packed;
 592
 593 #define POSIX_CTXT_DATA_LEN     16
 594 struct smb2_posix_neg_context {
 595         __le16  ContextType; /* 0x100 */
 596         __le16  DataLength;
 597         __le32  Reserved;
 598         __u8    Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
 599 } __packed;
 600
 601 struct smb2_negotiate_req {
 602         struct smb2_hdr hdr;
 603         __le16 StructureSize; /* Must be 36 */
 604         __le16 DialectCount;
 605         __le16 SecurityMode;
 606         __le16 Reserved;        /* MBZ */
 607         __le32 Capabilities;
 608         __u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
 609         /* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
 610         __le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
 611         __le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
 612         __le16 Reserved2;
 613         __le16 Dialects[];
 614 } __packed;
 615
 616 struct smb2_negotiate_rsp {
 617         struct smb2_hdr hdr;
 618         __le16 StructureSize;   /* Must be 65 */
 619         __le16 SecurityMode;
 620         __le16 DialectRevision;
 621         __le16 NegotiateContextCount;   /* Prior to SMB3.1.1 was Reserved & MBZ */
 622         __u8   ServerGUID[16];
 623         __le32 Capabilities;
 624         __le32 MaxTransactSize;
 625         __le32 MaxReadSize;
 626         __le32 MaxWriteSize;
 627         __le64 SystemTime;      /* MBZ */
 628         __le64 ServerStartTime;
 629         __le16 SecurityBufferOffset;
 630         __le16 SecurityBufferLength;
 631         __le32 NegotiateContextOffset;  /* Pre:SMB3.1.1 was reserved/ignored */
 632         __u8   Buffer[];        /* variable length GSS security buffer */
 633 } __packed;
 634
 635
 636 /*
 637  * SMB2_SESSION_SETUP  See MS-SMB2 section 2.2.5
 638  */
 639 /* Flags */
 640 #define SMB2_SESSION_REQ_FLAG_BINDING           0x01
 641 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA      0x04
 642
 643 struct smb2_sess_setup_req {
 644         struct smb2_hdr hdr;
 645         __le16 StructureSize; /* Must be 25 */
 646         __u8   Flags;
 647         __u8   SecurityMode;
 648         __le32 Capabilities;
 649         __le32 Channel;
 650         __le16 SecurityBufferOffset;
 651         __le16 SecurityBufferLength;
 652         __le64 PreviousSessionId;
 653         __u8   Buffer[];        /* variable length GSS security buffer */
 654 } __packed;
 655
 656 /* Currently defined SessionFlags */
 657 #define SMB2_SESSION_FLAG_IS_GUEST        0x0001
 658 #define SMB2_SESSION_FLAG_IS_GUEST_LE     cpu_to_le16(0x0001)
 659 #define SMB2_SESSION_FLAG_IS_NULL         0x0002
 660 #define SMB2_SESSION_FLAG_IS_NULL_LE      cpu_to_le16(0x0002)
 661 #define SMB2_SESSION_FLAG_ENCRYPT_DATA    0x0004
 662 #define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
 663
 664 struct smb2_sess_setup_rsp {
 665         struct smb2_hdr hdr;
 666         __le16 StructureSize; /* Must be 9 */
 667         __le16 SessionFlags;
 668         __le16 SecurityBufferOffset;
 669         __le16 SecurityBufferLength;
 670         __u8   Buffer[];        /* variable length GSS security buffer */
 671 } __packed;
 672
 673
 674 /*
 675  * SMB2_LOGOFF  See MS-SMB2 section 2.2.7
 676  */
 677 struct smb2_logoff_req {
 678         struct smb2_hdr hdr;
 679         __le16 StructureSize;   /* Must be 4 */
 680         __le16 Reserved;
 681 } __packed;
 682
 683 struct smb2_logoff_rsp {
 684         struct smb2_hdr hdr;
 685         __le16 StructureSize;   /* Must be 4 */
 686         __le16 Reserved;
 687 } __packed;
 688
 689
 690 /*
 691  * SMB2_CLOSE  See MS-SMB2 section 2.2.15
 692  */
 693 /* Currently defined values for close flags */
 694 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
 695 struct smb2_close_req {
 696         struct smb2_hdr hdr;
 697         __le16 StructureSize;   /* Must be 24 */
 698         __le16 Flags;
 699         __le32 Reserved;
 700         __u64  PersistentFileId; /* opaque endianness */
 701         __u64  VolatileFileId; /* opaque endianness */
 702 } __packed;
 703
 704 /*
 705  * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
 706  */
 707 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
 708
 709 struct smb2_close_rsp {
 710         struct smb2_hdr hdr;
 711         __le16 StructureSize; /* 60 */
 712         __le16 Flags;
 713         __le32 Reserved;
 714         struct_group_attr(network_open_info, __packed,
 715                 __le64 CreationTime;
 716                 __le64 LastAccessTime;
 717                 __le64 LastWriteTime;
 718                 __le64 ChangeTime;
 719                 /* Beginning of FILE_STANDARD_INFO equivalent */
 720                 __le64 AllocationSize;
 721                 __le64 EndOfFile;
 722                 __le32 Attributes;
 723         );
 724 } __packed;
 725
 726
 727 /*
 728  * SMB2_READ  See MS-SMB2 section 2.2.19
 729  */
 730 /* For read request Flags field below, following flag is defined for SMB3.02 */
 731 #define SMB2_READFLAG_READ_UNBUFFERED   0x01
 732 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
 733
 734 /* Channel field for read and write: exactly one of following flags can be set*/
 735 #define SMB2_CHANNEL_NONE               cpu_to_le32(0x00000000)
 736 #define SMB2_CHANNEL_RDMA_V1            cpu_to_le32(0x00000001)
 737 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
 738 #define SMB2_CHANNEL_RDMA_TRANSFORM     cpu_to_le32(0x00000003)
 739
 740 /* SMB2 read request without RFC1001 length at the beginning */
 741 struct smb2_read_req {
 742         struct smb2_hdr hdr;
 743         __le16 StructureSize; /* Must be 49 */
 744         __u8   Padding; /* offset from start of SMB2 header to place read */
 745         __u8   Flags; /* MBZ unless SMB3.02 or later */
 746         __le32 Length;
 747         __le64 Offset;
 748         __u64  PersistentFileId;
 749         __u64  VolatileFileId;
 750         __le32 MinimumCount;
 751         __le32 Channel; /* MBZ except for SMB3 or later */
 752         __le32 RemainingBytes;
 753         __le16 ReadChannelInfoOffset;
 754         __le16 ReadChannelInfoLength;
 755         __u8   Buffer[];
 756 } __packed;
 757
 758 /* Read flags */
 759 #define SMB2_READFLAG_RESPONSE_NONE            cpu_to_le32(0x00000000)
 760 #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM  cpu_to_le32(0x00000001)
 761
 762 struct smb2_read_rsp {
 763         struct smb2_hdr hdr;
 764         __le16 StructureSize; /* Must be 17 */
 765         __u8   DataOffset;
 766         __u8   Reserved;
 767         __le32 DataLength;
 768         __le32 DataRemaining;
 769         __le32 Flags;
 770         __u8   Buffer[];
 771 } __packed;
 772
 773
 774 /*
 775  * SMB2_WRITE  See MS-SMB2 section 2.2.21
 776  */
 777 /* For write request Flags field below the following flags are defined: */
 778 #define SMB2_WRITEFLAG_WRITE_THROUGH    0x00000001      /* SMB2.1 or later */
 779 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002      /* SMB3.02 or later */
 780
 781 struct smb2_write_req {
 782         struct smb2_hdr hdr;
 783         __le16 StructureSize; /* Must be 49 */
 784         __le16 DataOffset; /* offset from start of SMB2 header to write data */
 785         __le32 Length;
 786         __le64 Offset;
 787         __u64  PersistentFileId; /* opaque endianness */
 788         __u64  VolatileFileId; /* opaque endianness */
 789         __le32 Channel; /* MBZ unless SMB3.02 or later */
 790         __le32 RemainingBytes;
 791         __le16 WriteChannelInfoOffset;
 792         __le16 WriteChannelInfoLength;
 793         __le32 Flags;
 794         __u8   Buffer[];
 795 } __packed;
 796
 797 struct smb2_write_rsp {
 798         struct smb2_hdr hdr;
 799         __le16 StructureSize; /* Must be 17 */
 800         __u8   DataOffset;
 801         __u8   Reserved;
 802         __le32 DataLength;
 803         __le32 DataRemaining;
 804         __u32  Reserved2;
 805         __u8   Buffer[];
 806 } __packed;
 807
 808
 809 /*
 810  * SMB2_FLUSH  See MS-SMB2 section 2.2.17
 811  */
 812 struct smb2_flush_req {
 813         struct smb2_hdr hdr;
 814         __le16 StructureSize;   /* Must be 24 */
 815         __le16 Reserved1;
 816         __le32 Reserved2;
 817         __u64  PersistentFileId;
 818         __u64  VolatileFileId;
 819 } __packed;
 820
 821 struct smb2_flush_rsp {
 822         struct smb2_hdr hdr;
 823         __le16 StructureSize;
 824         __le16 Reserved;
 825 } __packed;
 826
 827 #define SMB2_LOCKFLAG_SHARED            0x0001
 828 #define SMB2_LOCKFLAG_EXCLUSIVE         0x0002
 829 #define SMB2_LOCKFLAG_UNLOCK            0x0004
 830 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY  0x0010
 831 #define SMB2_LOCKFLAG_MASK              0x0007
 832
 833 struct smb2_lock_element {
 834         __le64 Offset;
 835         __le64 Length;
 836         __le32 Flags;
 837         __le32 Reserved;
 838 } __packed;
 839
 840 struct smb2_lock_req {
 841         struct smb2_hdr hdr;
 842         __le16 StructureSize; /* Must be 48 */
 843         __le16 LockCount;
 844         /*
 845          * The least significant four bits are the index, the other 28 bits are
 846          * the lock sequence number (0 to 64). See MS-SMB2 2.2.26
 847          */
 848         __le32 LockSequenceNumber;
 849         __u64  PersistentFileId;
 850         __u64  VolatileFileId;
 851         /* Followed by at least one */
 852         union {
 853                 struct smb2_lock_element lock;
 854                 DECLARE_FLEX_ARRAY(struct smb2_lock_element, locks);
 855         };
 856 } __packed;
 857
 858 struct smb2_lock_rsp {
 859         struct smb2_hdr hdr;
 860         __le16 StructureSize; /* Must be 4 */
 861         __le16 Reserved;
 862 } __packed;
 863
 864 struct smb2_echo_req {
 865         struct smb2_hdr hdr;
 866         __le16 StructureSize;   /* Must be 4 */
 867         __u16  Reserved;
 868 } __packed;
 869
 870 struct smb2_echo_rsp {
 871         struct smb2_hdr hdr;
 872         __le16 StructureSize;   /* Must be 4 */
 873         __u16  Reserved;
 874 } __packed;
 875
 876 /*
 877  * Valid FileInformation classes for query directory
 878  *
 879  * Note that these are a subset of the (file) QUERY_INFO levels defined
 880  * later in this file (but since QUERY_DIRECTORY uses equivalent numbers
 881  * we do not redefine them here)
 882  *
 883  * FileDirectoryInfomation              0x01
 884  * FileFullDirectoryInformation         0x02
 885  * FileIdFullDirectoryInformation       0x26
 886  * FileBothDirectoryInformation         0x03
 887  * FileIdBothDirectoryInformation       0x25
 888  * FileNamesInformation                 0x0C
 889  * FileIdExtdDirectoryInformation       0x3C
 890  */
 891
 892 /* search (query_directory) Flags field */
 893 #define SMB2_RESTART_SCANS              0x01
 894 #define SMB2_RETURN_SINGLE_ENTRY        0x02
 895 #define SMB2_INDEX_SPECIFIED            0x04
 896 #define SMB2_REOPEN                     0x10
 897
 898 struct smb2_query_directory_req {
 899         struct smb2_hdr hdr;
 900         __le16 StructureSize; /* Must be 33 */
 901         __u8   FileInformationClass;
 902         __u8   Flags;
 903         __le32 FileIndex;
 904         __u64  PersistentFileId;
 905         __u64  VolatileFileId;
 906         __le16 FileNameOffset;
 907         __le16 FileNameLength;
 908         __le32 OutputBufferLength;
 909         __u8   Buffer[];
 910 } __packed;
 911
 912 struct smb2_query_directory_rsp {
 913         struct smb2_hdr hdr;
 914         __le16 StructureSize; /* Must be 9 */
 915         __le16 OutputBufferOffset;
 916         __le32 OutputBufferLength;
 917         __u8   Buffer[];
 918 } __packed;
 919
 920 /* DeviceType Flags */
 921 #define FILE_DEVICE_CD_ROM              0x00000002
 922 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
 923 #define FILE_DEVICE_DFS                 0x00000006
 924 #define FILE_DEVICE_DISK                0x00000007
 925 #define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
 926 #define FILE_DEVICE_FILE_SYSTEM         0x00000009
 927 #define FILE_DEVICE_NAMED_PIPE          0x00000011
 928 #define FILE_DEVICE_NETWORK             0x00000012
 929 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
 930 #define FILE_DEVICE_NULL                0x00000015
 931 #define FILE_DEVICE_PARALLEL_PORT       0x00000016
 932 #define FILE_DEVICE_PRINTER             0x00000018
 933 #define FILE_DEVICE_SERIAL_PORT         0x0000001b
 934 #define FILE_DEVICE_STREAMS             0x0000001e
 935 #define FILE_DEVICE_TAPE                0x0000001f
 936 #define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
 937 #define FILE_DEVICE_VIRTUAL_DISK        0x00000024
 938 #define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
 939
 940 /* Device Characteristics */
 941 #define FILE_REMOVABLE_MEDIA                    0x00000001
 942 #define FILE_READ_ONLY_DEVICE                   0x00000002
 943 #define FILE_FLOPPY_DISKETTE                    0x00000004
 944 #define FILE_WRITE_ONCE_MEDIA                   0x00000008
 945 #define FILE_REMOTE_DEVICE                      0x00000010
 946 #define FILE_DEVICE_IS_MOUNTED                  0x00000020
 947 #define FILE_VIRTUAL_VOLUME                     0x00000040
 948 #define FILE_DEVICE_SECURE_OPEN                 0x00000100
 949 #define FILE_CHARACTERISTIC_TS_DEVICE           0x00001000
 950 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE       0x00002000
 951 #define FILE_PORTABLE_DEVICE                    0x00004000
 952 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
 953
 954 /*
 955  * Maximum number of iovs we need for a set-info request.
 956  * The largest one is rename/hardlink
 957  * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
 958  * [1] : path
 959  * [2] : compound padding
 960  */
 961 #define SMB2_SET_INFO_IOV_SIZE 3
 962
 963 struct smb2_set_info_req {
 964         struct smb2_hdr hdr;
 965         __le16 StructureSize; /* Must be 33 */
 966         __u8   InfoType;
 967         __u8   FileInfoClass;
 968         __le32 BufferLength;
 969         __le16 BufferOffset;
 970         __u16  Reserved;
 971         __le32 AdditionalInformation;
 972         __u64  PersistentFileId;
 973         __u64  VolatileFileId;
 974         __u8   Buffer[];
 975 } __packed;
 976
 977 struct smb2_set_info_rsp {
 978         struct smb2_hdr hdr;
 979         __le16 StructureSize; /* Must be 2 */
 980 } __packed;
 981
 982 /*
 983  * SMB2_NOTIFY  See MS-SMB2 section 2.2.35
 984  */
 985 /* notify flags */
 986 #define SMB2_WATCH_TREE                 0x0001
 987
 988 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
 989 #define FILE_NOTIFY_CHANGE_FILE_NAME            0x00000001
 990 #define FILE_NOTIFY_CHANGE_DIR_NAME             0x00000002
 991 #define FILE_NOTIFY_CHANGE_ATTRIBUTES           0x00000004
 992 #define FILE_NOTIFY_CHANGE_SIZE                 0x00000008
 993 #define FILE_NOTIFY_CHANGE_LAST_WRITE           0x00000010
 994 #define FILE_NOTIFY_CHANGE_LAST_ACCESS          0x00000020
 995 #define FILE_NOTIFY_CHANGE_CREATION             0x00000040
 996 #define FILE_NOTIFY_CHANGE_EA                   0x00000080
 997 #define FILE_NOTIFY_CHANGE_SECURITY             0x00000100
 998 #define FILE_NOTIFY_CHANGE_STREAM_NAME          0x00000200
 999 #define FILE_NOTIFY_CHANGE_STREAM_SIZE          0x00000400
1000 #define FILE_NOTIFY_CHANGE_STREAM_WRITE         0x00000800
1001
1002 /* SMB2 Notify Action Flags */
1003 #define FILE_ACTION_ADDED                       0x00000001
1004 #define FILE_ACTION_REMOVED                     0x00000002
1005 #define FILE_ACTION_MODIFIED                    0x00000003
1006 #define FILE_ACTION_RENAMED_OLD_NAME            0x00000004
1007 #define FILE_ACTION_RENAMED_NEW_NAME            0x00000005
1008 #define FILE_ACTION_ADDED_STREAM                0x00000006
1009 #define FILE_ACTION_REMOVED_STREAM              0x00000007
1010 #define FILE_ACTION_MODIFIED_STREAM             0x00000008
1011 #define FILE_ACTION_REMOVED_BY_DELETE           0x00000009
1012
1013 struct smb2_change_notify_req {
1014         struct smb2_hdr hdr;
1015         __le16  StructureSize;
1016         __le16  Flags;
1017         __le32  OutputBufferLength;
1018         __u64   PersistentFileId; /* opaque endianness */
1019         __u64   VolatileFileId; /* opaque endianness */
1020         __le32  CompletionFilter;
1021         __u32   Reserved;
1022 } __packed;
1023
1024 struct smb2_change_notify_rsp {
1025         struct smb2_hdr hdr;
1026         __le16  StructureSize;  /* Must be 9 */
1027         __le16  OutputBufferOffset;
1028         __le32  OutputBufferLength;
1029         __u8    Buffer[]; /* array of file notify structs */
1030 } __packed;
1031
1032 /*
1033  * SMB2_SERVER_TO_CLIENT_NOTIFICATION: See MS-SMB2 section 2.2.44
1034  */
1035
1036 #define SMB2_NOTIFY_SESSION_CLOSED      0x0000
1037
1038 struct smb2_server_client_notification {
1039         struct smb2_hdr hdr;
1040         __le16  StructureSize;
1041         __u16   Reserved; /* MBZ */
1042         __le32  NotificationType;
1043         __u8    NotificationBuffer[4]; /* MBZ */
1044 } __packed;
1045
1046 /*
1047  * SMB2_CREATE  See MS-SMB2 section 2.2.13
1048  */
1049 /* Oplock levels */
1050 #define SMB2_OPLOCK_LEVEL_NONE          0x00
1051 #define SMB2_OPLOCK_LEVEL_II            0x01
1052 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
1053 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
1054 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
1055 /* Non-spec internal type */
1056 #define SMB2_OPLOCK_LEVEL_NOCHANGE      0x99
1057
1058 /* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
1059 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
1060 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
1061 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
1062 #define IL_DELEGATE             cpu_to_le32(0x00000003)
1063
1064 /* File Attributes */
1065 #define FILE_ATTRIBUTE_READONLY                 0x00000001
1066 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
1067 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
1068 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
1069 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
1070 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
1071 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
1072 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
1073 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
1074 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
1075 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
1076 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
1077 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
1078 #define FILE_ATTRIBUTE_INTEGRITY_STREAM         0x00008000
1079 #define FILE_ATTRIBUTE_NO_SCRUB_DATA            0x00020000
1080 #define FILE_ATTRIBUTE__MASK                    0x00007FB7
1081
1082 #define FILE_ATTRIBUTE_READONLY_LE              cpu_to_le32(0x00000001)
1083 #define FILE_ATTRIBUTE_HIDDEN_LE                cpu_to_le32(0x00000002)
1084 #define FILE_ATTRIBUTE_SYSTEM_LE                cpu_to_le32(0x00000004)
1085 #define FILE_ATTRIBUTE_DIRECTORY_LE             cpu_to_le32(0x00000010)
1086 #define FILE_ATTRIBUTE_ARCHIVE_LE               cpu_to_le32(0x00000020)
1087 #define FILE_ATTRIBUTE_NORMAL_LE                cpu_to_le32(0x00000080)
1088 #define FILE_ATTRIBUTE_TEMPORARY_LE             cpu_to_le32(0x00000100)
1089 #define FILE_ATTRIBUTE_SPARSE_FILE_LE           cpu_to_le32(0x00000200)
1090 #define FILE_ATTRIBUTE_REPARSE_POINT_LE         cpu_to_le32(0x00000400)
1091 #define FILE_ATTRIBUTE_COMPRESSED_LE            cpu_to_le32(0x00000800)
1092 #define FILE_ATTRIBUTE_OFFLINE_LE               cpu_to_le32(0x00001000)
1093 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE   cpu_to_le32(0x00002000)
1094 #define FILE_ATTRIBUTE_ENCRYPTED_LE             cpu_to_le32(0x00004000)
1095 #define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE      cpu_to_le32(0x00008000)
1096 #define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE         cpu_to_le32(0x00020000)
1097 #define FILE_ATTRIBUTE_MASK_LE                  cpu_to_le32(0x00007FB7)
1098
1099 /* Desired Access Flags */
1100 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
1101 #define FILE_LIST_DIRECTORY_LE          cpu_to_le32(0x00000001)
1102 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
1103 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
1104 #define FILE_ADD_SUBDIRECTORY_LE        cpu_to_le32(0x00000004)
1105 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
1106 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
1107 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
1108 #define FILE_DELETE_CHILD_LE            cpu_to_le32(0x00000040)
1109 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
1110 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
1111 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
1112 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
1113 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
1114 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
1115 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
1116 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
1117 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
1118 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
1119 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
1120 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
1121 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
1122 #define DESIRED_ACCESS_MASK             cpu_to_le32(0xF21F01FF)
1123
1124
1125 #define FILE_READ_DESIRED_ACCESS_LE     (FILE_READ_DATA_LE        |     \
1126                                          FILE_READ_EA_LE          |     \
1127                                          FILE_GENERIC_READ_LE)
1128 #define FILE_WRITE_DESIRE_ACCESS_LE     (FILE_WRITE_DATA_LE       |     \
1129                                          FILE_APPEND_DATA_LE      |     \
1130                                          FILE_WRITE_EA_LE         |     \
1131                                          FILE_WRITE_ATTRIBUTES_LE |     \
1132                                          FILE_GENERIC_WRITE_LE)
1133
1134 /* ShareAccess Flags */
1135 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
1136 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
1137 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
1138 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
1139
1140 /* CreateDisposition Flags */
1141 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
1142 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
1143 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
1144 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
1145 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
1146 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
1147 #define FILE_CREATE_MASK_LE             cpu_to_le32(0x00000007)
1148
1149 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
1150                         | FILE_READ_ATTRIBUTES)
1151 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
1152                         | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
1153 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
1154
1155 /* CreateOptions Flags */
1156 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
1157 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
1158 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
1159 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
1160 #define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
1161 /* FILE_SYNCHRONOUS_IO_ALERT_LE         cpu_to_le32(0x00000010) should be zero, ignored */
1162 /* FILE_SYNCHRONOUS_IO_NONALERT         cpu_to_le32(0x00000020) should be zero, ignored */
1163 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
1164 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
1165 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
1166 /* FILE_OPEN_REMOTE_INSTANCE            cpu_to_le32(0x00000400) should be zero, ignored */
1167 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
1168 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000) /* MBZ */
1169 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
1170 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
1171 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
1172 /* FILE_OPEN_REQUIRING_OPLOCK           cpu_to_le32(0x00010000) should be zero, ignored */
1173 /* FILE_DISALLOW_EXCLUSIVE              cpu_to_le32(0x00020000) should be zero, ignored */
1174 /* FILE_RESERVE_OPFILTER                cpu_to_le32(0x00100000) MBZ */
1175 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
1176 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
1177 /* #define FILE_OPEN_FOR_FREE_SPACE_QUERY cpu_to_le32(0x00800000) should be zero, ignored */
1178 #define CREATE_OPTIONS_MASK_LE          cpu_to_le32(0x00FFFFFF)
1179
1180 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
1181                         | FILE_READ_ATTRIBUTES_LE)
1182 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
1183                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
1184 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
1185
1186 /* Create Context Values */
1187 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
1188 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
1189 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
1190 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
1191 #define SMB2_CREATE_ALLOCATION_SIZE             "AlSi"
1192 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
1193 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
1194 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
1195 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
1196 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2   "DH2Q"
1197 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 "DH2C"
1198 #define SMB2_CREATE_TAG_POSIX           "\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
1199 #define SMB2_CREATE_APP_INSTANCE_ID     "\x45\xBC\xA6\x6A\xEF\xA7\xF7\x4A\x90\x08\xFA\x46\x2E\x14\x4D\x74"
1200 #define SMB2_CREATE_APP_INSTANCE_VERSION "\xB9\x82\xD0\xB7\x3B\x56\x07\x4F\xA0\x7B\x52\x4A\x81\x16\xA0\x10"
1201 #define SVHDX_OPEN_DEVICE_CONTEXT       "\x9C\xCB\xCF\x9E\x04\xC1\xE6\x43\x98\x0E\x15\x8D\xA1\xF6\xEC\x83"
1202 #define SMB2_CREATE_TAG_AAPL                    "AAPL"
1203
1204 /* Flag (SMB3 open response) values */
1205 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
1206
1207 struct create_context {
1208         /* New members must be added within the struct_group() macro below. */
1209         __struct_group(create_context_hdr, hdr, __packed,
1210                 __le32 Next;
1211                 __le16 NameOffset;
1212                 __le16 NameLength;
1213                 __le16 Reserved;
1214                 __le16 DataOffset;
1215                 __le32 DataLength;
1216         );
1217         __u8 Buffer[];
1218 } __packed;
1219 static_assert(offsetof(struct create_context, Buffer) == sizeof(struct create_context_hdr),
1220               "struct member likely outside of __struct_group()");
1221
1222 struct smb2_create_req {
1223         struct smb2_hdr hdr;
1224         __le16 StructureSize;   /* Must be 57 */
1225         __u8   SecurityFlags;
1226         __u8   RequestedOplockLevel;
1227         __le32 ImpersonationLevel;
1228         __le64 SmbCreateFlags;
1229         __le64 Reserved;
1230         __le32 DesiredAccess;
1231         __le32 FileAttributes;
1232         __le32 ShareAccess;
1233         __le32 CreateDisposition;
1234         __le32 CreateOptions;
1235         __le16 NameOffset;
1236         __le16 NameLength;
1237         __le32 CreateContextsOffset;
1238         __le32 CreateContextsLength;
1239         __u8   Buffer[];
1240 } __packed;
1241
1242 struct smb2_create_rsp {
1243         struct smb2_hdr hdr;
1244         __le16 StructureSize;   /* Must be 89 */
1245         __u8   OplockLevel;
1246         __u8   Flags;  /* 0x01 if reparse point */
1247         __le32 CreateAction;
1248         __le64 CreationTime;
1249         __le64 LastAccessTime;
1250         __le64 LastWriteTime;
1251         __le64 ChangeTime;
1252         __le64 AllocationSize;
1253         __le64 EndofFile;
1254         __le32 FileAttributes;
1255         __le32 Reserved2;
1256         __u64  PersistentFileId;
1257         __u64  VolatileFileId;
1258         __le32 CreateContextsOffset;
1259         __le32 CreateContextsLength;
1260         __u8   Buffer[];
1261 } __packed;
1262
1263 struct create_posix {
1264         struct create_context_hdr ccontext;
1265         __u8    Name[16];
1266         __le32  Mode;
1267         __u32   Reserved;
1268 } __packed;
1269
1270 /* See MS-SMB2 2.2.13.2.3 and MS-SMB2 2.2.13.2.4 */
1271 struct create_durable {
1272         struct create_context_hdr ccontext;
1273         __u8   Name[8];
1274         union {
1275                 __u8  Reserved[16];
1276                 struct {
1277                         __u64 PersistentFileId;
1278                         __u64 VolatileFileId;
1279                 } Fid;
1280         } Data;
1281 } __packed;
1282
1283 /* See MS-SMB2 2.2.13.2.5 */
1284 struct create_mxac_req {
1285         struct create_context_hdr ccontext;
1286         __u8   Name[8];
1287         __le64 Timestamp;
1288 } __packed;
1289
1290 /* See MS-SMB2 2.2.14.2.5 */
1291 struct create_mxac_rsp {
1292         struct create_context_hdr ccontext;
1293         __u8   Name[8];
1294         __le32 QueryStatus;
1295         __le32 MaximalAccess;
1296 } __packed;
1297
1298 #define SMB2_LEASE_NONE_LE                      cpu_to_le32(0x00)
1299 #define SMB2_LEASE_READ_CACHING_LE              cpu_to_le32(0x01)
1300 #define SMB2_LEASE_HANDLE_CACHING_LE            cpu_to_le32(0x02)
1301 #define SMB2_LEASE_WRITE_CACHING_LE             cpu_to_le32(0x04)
1302
1303 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE    cpu_to_le32(0x02)
1304 #define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET_LE cpu_to_le32(0x04)
1305
1306 #define SMB2_LEASE_KEY_SIZE                     16
1307
1308 /* See MS-SMB2 2.2.13.2.8 */
1309 struct lease_context {
1310         __u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1311         __le32 LeaseState;
1312         __le32 LeaseFlags;
1313         __le64 LeaseDuration;
1314 } __packed;
1315
1316 /* See MS-SMB2 2.2.13.2.10 */
1317 struct lease_context_v2 {
1318         __u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1319         __le32 LeaseState;
1320         __le32 LeaseFlags;
1321         __le64 LeaseDuration;
1322         __u8 ParentLeaseKey[SMB2_LEASE_KEY_SIZE];
1323         __le16 Epoch;
1324         __le16 Reserved;
1325 } __packed;
1326
1327 struct create_lease {
1328         struct create_context_hdr ccontext;
1329         __u8   Name[8];
1330         struct lease_context lcontext;
1331 } __packed;
1332
1333 struct create_lease_v2 {
1334         struct create_context_hdr ccontext;
1335         __u8   Name[8];
1336         struct lease_context_v2 lcontext;
1337         __u8   Pad[4];
1338 } __packed;
1339
1340 /* See MS-SMB2 2.2.14.2.9 */
1341 struct create_disk_id_rsp {
1342         struct create_context_hdr ccontext;
1343         __u8   Name[8];
1344         __le64 DiskFileId;
1345         __le64 VolumeId;
1346         __u8  Reserved[16];
1347 } __packed;
1348
1349 /* See MS-SMB2 2.2.13.2.13 */
1350 struct create_app_inst_id {
1351         struct create_context_hdr ccontext;
1352         __u8 Name[16];
1353         __le32 StructureSize; /* Must be 20 */
1354         __u16 Reserved;
1355         __u8 AppInstanceId[16];
1356 } __packed;
1357
1358 /* See MS-SMB2 2.2.13.2.15 */
1359 struct create_app_inst_id_vers {
1360         struct create_context_hdr ccontext;
1361         __u8 Name[16];
1362         __le32 StructureSize; /* Must be 24 */
1363         __u16 Reserved;
1364         __u32 Padding;
1365         __le64 AppInstanceVersionHigh;
1366         __le64 AppInstanceVersionLow;
1367 } __packed;
1368
1369 /* See MS-SMB2 2.2.31 and 2.2.32 */
1370 struct smb2_ioctl_req {
1371         struct smb2_hdr hdr;
1372         __le16 StructureSize; /* Must be 57 */
1373         __le16 Reserved; /* offset from start of SMB2 header to write data */
1374         __le32 CtlCode;
1375         __u64  PersistentFileId;
1376         __u64  VolatileFileId;
1377         __le32 InputOffset; /* Reserved MBZ */
1378         __le32 InputCount;
1379         __le32 MaxInputResponse;
1380         __le32 OutputOffset;
1381         __le32 OutputCount;
1382         __le32 MaxOutputResponse;
1383         __le32 Flags;
1384         __le32 Reserved2;
1385         __u8   Buffer[];
1386 } __packed;
1387
1388 struct smb2_ioctl_rsp {
1389         struct smb2_hdr hdr;
1390         __le16 StructureSize; /* Must be 49 */
1391         __le16 Reserved;
1392         __le32 CtlCode;
1393         __u64  PersistentFileId;
1394         __u64  VolatileFileId;
1395         __le32 InputOffset; /* Reserved MBZ */
1396         __le32 InputCount;
1397         __le32 OutputOffset;
1398         __le32 OutputCount;
1399         __le32 Flags;
1400         __le32 Reserved2;
1401         __u8   Buffer[];
1402 } __packed;
1403
1404 /* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
1405 struct file_zero_data_information {
1406         __le64  FileOffset;
1407         __le64  BeyondFinalZero;
1408 } __packed;
1409
1410 /* See MS-FSCC 2.3.7 */
1411 struct duplicate_extents_to_file {
1412         __u64 PersistentFileHandle; /* source file handle, opaque endianness */
1413         __u64 VolatileFileHandle;
1414         __le64 SourceFileOffset;
1415         __le64 TargetFileOffset;
1416         __le64 ByteCount;  /* Bytes to be copied */
1417 } __packed;
1418
1419 /* See MS-FSCC 2.3.8 */
1420 #define DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC 0x00000001
1421 struct duplicate_extents_to_file_ex {
1422         __u64 PersistentFileHandle; /* source file handle, opaque endianness */
1423         __u64 VolatileFileHandle;
1424         __le64 SourceFileOffset;
1425         __le64 TargetFileOffset;
1426         __le64 ByteCount;  /* Bytes to be copied */
1427         __le32 Flags;
1428         __le32 Reserved;
1429 } __packed;
1430
1431
1432 /* See MS-FSCC 2.3.20 */
1433 struct fsctl_get_integrity_information_rsp {
1434         __le16  ChecksumAlgorithm;
1435         __le16  Reserved;
1436         __le32  Flags;
1437         __le32  ChecksumChunkSizeInBytes;
1438         __le32  ClusterSizeInBytes;
1439 } __packed;
1440
1441 /* See MS-FSCC 2.3.55 */
1442 struct fsctl_query_file_regions_req {
1443         __le64  FileOffset;
1444         __le64  Length;
1445         __le32  DesiredUsage;
1446         __le32  Reserved;
1447 } __packed;
1448
1449 /* DesiredUsage flags see MS-FSCC 2.3.56.1 */
1450 #define FILE_USAGE_INVALID_RANGE        0x00000000
1451 #define FILE_USAGE_VALID_CACHED_DATA    0x00000001
1452 #define FILE_USAGE_NONCACHED_DATA       0x00000002
1453
1454 struct file_region_info {
1455         __le64  FileOffset;
1456         __le64  Length;
1457         __le32  DesiredUsage;
1458         __le32  Reserved;
1459 } __packed;
1460
1461 /* See MS-FSCC 2.3.56 */
1462 struct fsctl_query_file_region_rsp {
1463         __le32 Flags;
1464         __le32 TotalRegionEntryCount;
1465         __le32 RegionEntryCount;
1466         __u32  Reserved;
1467         struct  file_region_info Regions[];
1468 } __packed;
1469
1470 /* See MS-FSCC 2.3.58 */
1471 struct fsctl_query_on_disk_vol_info_rsp {
1472         __le64  DirectoryCount;
1473         __le64  FileCount;
1474         __le16  FsFormatMajVersion;
1475         __le16  FsFormatMinVersion;
1476         __u8    FsFormatName[24];
1477         __le64  FormatTime;
1478         __le64  LastUpdateTime;
1479         __u8    CopyrightInfo[68];
1480         __u8    AbstractInfo[68];
1481         __u8    FormatImplInfo[68];
1482         __u8    LastModifyImplInfo[68];
1483 } __packed;
1484
1485 /* See MS-FSCC 2.3.73 */
1486 struct fsctl_set_integrity_information_req {
1487         __le16  ChecksumAlgorithm;
1488         __le16  Reserved;
1489         __le32  Flags;
1490 } __packed;
1491
1492 /* See MS-FSCC 2.3.75 */
1493 struct fsctl_set_integrity_info_ex_req {
1494         __u8    EnableIntegrity;
1495         __u8    KeepState;
1496         __u16   Reserved;
1497         __le32  Flags;
1498         __u8    Version;
1499         __u8    Reserved2[7];
1500 } __packed;
1501
1502 /* Integrity ChecksumAlgorithm choices for above */
1503 #define CHECKSUM_TYPE_NONE      0x0000
1504 #define CHECKSUM_TYPE_CRC64     0x0002
1505 #define CHECKSUM_TYPE_UNCHANGED 0xFFFF  /* set only */
1506
1507 /* Integrity flags for above */
1508 #define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF   0x00000001
1509
1510 /* Reparse structures - see MS-FSCC 2.1.2 */
1511
1512 /* struct fsctl_reparse_info_req is empty, only response structs (see below) */
1513 struct reparse_data_buffer {
1514         __le32  ReparseTag;
1515         __le16  ReparseDataLength;
1516         __u16   Reserved;
1517         __u8    DataBuffer[]; /* Variable Length */
1518 } __packed;
1519
1520 struct reparse_guid_data_buffer {
1521         __le32  ReparseTag;
1522         __le16  ReparseDataLength;
1523         __u16   Reserved;
1524         __u8    ReparseGuid[16];
1525         __u8    DataBuffer[]; /* Variable Length */
1526 } __packed;
1527
1528 struct reparse_mount_point_data_buffer {
1529         __le32  ReparseTag;
1530         __le16  ReparseDataLength;
1531         __u16   Reserved;
1532         __le16  SubstituteNameOffset;
1533         __le16  SubstituteNameLength;
1534         __le16  PrintNameOffset;
1535         __le16  PrintNameLength;
1536         __u8    PathBuffer[]; /* Variable Length */
1537 } __packed;
1538
1539 #define SYMLINK_FLAG_RELATIVE 0x00000001
1540
1541 struct reparse_symlink_data_buffer {
1542         __le32  ReparseTag;
1543         __le16  ReparseDataLength;
1544         __u16   Reserved;
1545         __le16  SubstituteNameOffset;
1546         __le16  SubstituteNameLength;
1547         __le16  PrintNameOffset;
1548         __le16  PrintNameLength;
1549         __le32  Flags;
1550         __u8    PathBuffer[]; /* Variable Length */
1551 } __packed;
1552
1553 /* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
1554
1555 /* For IO_REPARSE_TAG_LX_SYMLINK */
1556 struct reparse_wsl_symlink_data_buffer {
1557         __le32  ReparseTag;
1558         __le16  ReparseDataLength;
1559         __u16   Reserved;
1560         __le32  Flags;
1561         __u8    PathBuffer[]; /* Variable Length UTF-8 string without nul-term */
1562 } __packed;
1563
1564 struct validate_negotiate_info_req {
1565         __le32 Capabilities;
1566         __u8   Guid[SMB2_CLIENT_GUID_SIZE];
1567         __le16 SecurityMode;
1568         __le16 DialectCount;
1569         __le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
1570 } __packed;
1571
1572 struct validate_negotiate_info_rsp {
1573         __le32 Capabilities;
1574         __u8   Guid[SMB2_CLIENT_GUID_SIZE];
1575         __le16 SecurityMode;
1576         __le16 Dialect; /* Dialect in use for the connection */
1577 } __packed;
1578
1579
1580 /* Possible InfoType values */
1581 #define SMB2_O_INFO_FILE        0x01
1582 #define SMB2_O_INFO_FILESYSTEM  0x02
1583 #define SMB2_O_INFO_SECURITY    0x03
1584 #define SMB2_O_INFO_QUOTA       0x04
1585
1586 /* SMB2 Query Info see MS-SMB2 (2.2.37) or MS-DTYP */
1587
1588 /* List of QUERY INFO levels (those also valid for QUERY_DIR are noted below */
1589 #define FILE_DIRECTORY_INFORMATION      1       /* also for QUERY_DIR */
1590 #define FILE_FULL_DIRECTORY_INFORMATION 2       /* also for QUERY_DIR */
1591 #define FILE_BOTH_DIRECTORY_INFORMATION 3       /* also for QUERY_DIR */
1592 #define FILE_BASIC_INFORMATION          4
1593 #define FILE_STANDARD_INFORMATION       5
1594 #define FILE_INTERNAL_INFORMATION       6
1595 #define FILE_EA_INFORMATION             7
1596 #define FILE_ACCESS_INFORMATION         8
1597 #define FILE_NAME_INFORMATION           9
1598 #define FILE_RENAME_INFORMATION         10
1599 #define FILE_LINK_INFORMATION           11
1600 #define FILE_NAMES_INFORMATION          12      /* also for QUERY_DIR */
1601 #define FILE_DISPOSITION_INFORMATION    13
1602 #define FILE_POSITION_INFORMATION       14
1603 #define FILE_FULL_EA_INFORMATION        15
1604 #define FILE_MODE_INFORMATION           16
1605 #define FILE_ALIGNMENT_INFORMATION      17
1606 #define FILE_ALL_INFORMATION            18
1607 #define FILE_ALLOCATION_INFORMATION     19
1608 #define FILE_END_OF_FILE_INFORMATION    20
1609 #define FILE_ALTERNATE_NAME_INFORMATION 21
1610 #define FILE_STREAM_INFORMATION         22
1611 #define FILE_PIPE_INFORMATION           23
1612 #define FILE_PIPE_LOCAL_INFORMATION     24
1613 #define FILE_PIPE_REMOTE_INFORMATION    25
1614 #define FILE_MAILSLOT_QUERY_INFORMATION 26
1615 #define FILE_MAILSLOT_SET_INFORMATION   27
1616 #define FILE_COMPRESSION_INFORMATION    28
1617 #define FILE_OBJECT_ID_INFORMATION      29
1618 /* Number 30 not defined in documents */
1619 #define FILE_MOVE_CLUSTER_INFORMATION   31
1620 #define FILE_QUOTA_INFORMATION          32
1621 #define FILE_REPARSE_POINT_INFORMATION  33
1622 #define FILE_NETWORK_OPEN_INFORMATION   34
1623 #define FILE_ATTRIBUTE_TAG_INFORMATION  35
1624 #define FILE_TRACKING_INFORMATION       36
1625 #define FILEID_BOTH_DIRECTORY_INFORMATION 37    /* also for QUERY_DIR */
1626 #define FILEID_FULL_DIRECTORY_INFORMATION 38    /* also for QUERY_DIR */
1627 #define FILE_VALID_DATA_LENGTH_INFORMATION 39
1628 #define FILE_SHORT_NAME_INFORMATION     40
1629 #define FILE_SFIO_RESERVE_INFORMATION   44
1630 #define FILE_SFIO_VOLUME_INFORMATION    45
1631 #define FILE_HARD_LINK_INFORMATION      46
1632 #define FILE_NORMALIZED_NAME_INFORMATION 48
1633 #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1634 #define FILE_STANDARD_LINK_INFORMATION  54
1635 #define FILE_ID_INFORMATION             59
1636 #define FILE_ID_EXTD_DIRECTORY_INFORMATION 60   /* also for QUERY_DIR */
1637 /* Used for Query Info and Find File POSIX Info for SMB3.1.1 and SMB1 */
1638 #define SMB_FIND_FILE_POSIX_INFO        0x064
1639
1640 /* Security info type additionalinfo flags. */
1641 #define OWNER_SECINFO   0x00000001
1642 #define GROUP_SECINFO   0x00000002
1643 #define DACL_SECINFO   0x00000004
1644 #define SACL_SECINFO   0x00000008
1645 #define LABEL_SECINFO   0x00000010
1646 #define ATTRIBUTE_SECINFO   0x00000020
1647 #define SCOPE_SECINFO   0x00000040
1648 #define BACKUP_SECINFO   0x00010000
1649 #define UNPROTECTED_SACL_SECINFO   0x10000000
1650 #define UNPROTECTED_DACL_SECINFO   0x20000000
1651 #define PROTECTED_SACL_SECINFO   0x40000000
1652 #define PROTECTED_DACL_SECINFO   0x80000000
1653
1654 /* Flags used for FileFullEAinfo */
1655 #define SL_RESTART_SCAN         0x00000001
1656 #define SL_RETURN_SINGLE_ENTRY  0x00000002
1657 #define SL_INDEX_SPECIFIED      0x00000004
1658
1659 struct smb2_query_info_req {
1660         struct smb2_hdr hdr;
1661         __le16 StructureSize; /* Must be 41 */
1662         __u8   InfoType;
1663         __u8   FileInfoClass;
1664         __le32 OutputBufferLength;
1665         __le16 InputBufferOffset;
1666         __u16  Reserved;
1667         __le32 InputBufferLength;
1668         __le32 AdditionalInformation;
1669         __le32 Flags;
1670         __u64  PersistentFileId;
1671         __u64  VolatileFileId;
1672         __u8   Buffer[];
1673 } __packed;
1674
1675 struct smb2_query_info_rsp {
1676         struct smb2_hdr hdr;
1677         __le16 StructureSize; /* Must be 9 */
1678         __le16 OutputBufferOffset;
1679         __le32 OutputBufferLength;
1680         __u8   Buffer[];
1681 } __packed;
1682
1683 /*
1684  *      PDU query infolevel structure definitions
1685  */
1686
1687 /* See MS-FSCC 2.3.52 */
1688 struct file_allocated_range_buffer {
1689         __le64  file_offset;
1690         __le64  length;
1691 } __packed;
1692
1693 struct smb2_file_internal_info {
1694         __le64 IndexNumber;
1695 } __packed; /* level 6 Query */
1696
1697 struct smb2_file_rename_info { /* encoding of request for level 10 */
1698         __u8   ReplaceIfExists; /* 1 = replace existing target with new */
1699                                 /* 0 = fail if target already exists */
1700         __u8   Reserved[7];
1701         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1702         __le32 FileNameLength;
1703         char   FileName[];     /* New name to be assigned */
1704         /* padding - overall struct size must be >= 24 so filename + pad >= 6 */
1705 } __packed; /* level 10 Set */
1706
1707 struct smb2_file_link_info { /* encoding of request for level 11 */
1708         __u8   ReplaceIfExists; /* 1 = replace existing link with new */
1709                                 /* 0 = fail if link already exists */
1710         __u8   Reserved[7];
1711         __u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1712         __le32 FileNameLength;
1713         char   FileName[];     /* Name to be assigned to new link */
1714 } __packed; /* level 11 Set */
1715
1716 /*
1717  * This level 18, although with struct with same name is different from cifs
1718  * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1719  * CurrentByteOffset.
1720  */
1721 struct smb2_file_all_info { /* data block encoding of response to level 18 */
1722         __le64 CreationTime;    /* Beginning of FILE_BASIC_INFO equivalent */
1723         __le64 LastAccessTime;
1724         __le64 LastWriteTime;
1725         __le64 ChangeTime;
1726         __le32 Attributes;
1727         __u32  Pad1;            /* End of FILE_BASIC_INFO_INFO equivalent */
1728         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
1729         __le64 EndOfFile;       /* size ie offset to first free byte in file */
1730         __le32 NumberOfLinks;   /* hard links */
1731         __u8   DeletePending;
1732         __u8   Directory;
1733         __u16  Pad2;            /* End of FILE_STANDARD_INFO equivalent */
1734         __le64 IndexNumber;
1735         __le32 EASize;
1736         __le32 AccessFlags;
1737         __le64 CurrentByteOffset;
1738         __le32 Mode;
1739         __le32 AlignmentRequirement;
1740         __le32 FileNameLength;
1741         union {
1742                 char __pad;     /* Legacy structure padding */
1743                 DECLARE_FLEX_ARRAY(char, FileName);
1744         };
1745 } __packed; /* level 18 Query */
1746
1747 struct smb2_file_eof_info { /* encoding of request for level 10 */
1748         __le64 EndOfFile; /* new end of file value */
1749 } __packed; /* level 20 Set */
1750
1751 /* Level 100 query info */
1752 struct smb311_posix_qinfo {
1753         __le64 CreationTime;
1754         __le64 LastAccessTime;
1755         __le64 LastWriteTime;
1756         __le64 ChangeTime;
1757         __le64 EndOfFile;
1758         __le64 AllocationSize;
1759         __le32 DosAttributes;
1760         __le64 Inode;
1761         __le32 DeviceId;
1762         __le32 Zero;
1763         /* beginning of POSIX Create Context Response */
1764         __le32 HardLinks;
1765         __le32 ReparseTag;
1766         __le32 Mode;
1767         u8     Sids[];
1768         /*
1769          * var sized owner SID
1770          * var sized group SID
1771          * le32 filenamelength
1772          * u8  filename[]
1773          */
1774 } __packed;
1775
1776 /* File System Information Classes */
1777 #define FS_VOLUME_INFORMATION           1 /* Query */
1778 #define FS_LABEL_INFORMATION            2 /* Set */
1779 #define FS_SIZE_INFORMATION             3 /* Query */
1780 #define FS_DEVICE_INFORMATION           4 /* Query */
1781 #define FS_ATTRIBUTE_INFORMATION        5 /* Query */
1782 #define FS_CONTROL_INFORMATION          6 /* Query, Set */
1783 #define FS_FULL_SIZE_INFORMATION        7 /* Query */
1784 #define FS_OBJECT_ID_INFORMATION        8 /* Query, Set */
1785 #define FS_DRIVER_PATH_INFORMATION      9 /* Query */
1786 #define FS_SECTOR_SIZE_INFORMATION      11 /* SMB3 or later. Query */
1787 #define FS_POSIX_INFORMATION            100 /* SMB3.1.1 POSIX. Query */
1788
1789 struct smb2_fs_full_size_info {
1790         __le64 TotalAllocationUnits;
1791         __le64 CallerAvailableAllocationUnits;
1792         __le64 ActualAvailableAllocationUnits;
1793         __le32 SectorsPerAllocationUnit;
1794         __le32 BytesPerSector;
1795 } __packed;
1796
1797 #define SSINFO_FLAGS_ALIGNED_DEVICE             0x00000001
1798 #define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1799 #define SSINFO_FLAGS_NO_SEEK_PENALTY            0x00000004
1800 #define SSINFO_FLAGS_TRIM_ENABLED               0x00000008
1801
1802 /* sector size info struct */
1803 struct smb3_fs_ss_info {
1804         __le32 LogicalBytesPerSector;
1805         __le32 PhysicalBytesPerSectorForAtomicity;
1806         __le32 PhysicalBytesPerSectorForPerf;
1807         __le32 FSEffPhysicalBytesPerSectorForAtomicity;
1808         __le32 Flags;
1809         __le32 ByteOffsetForSectorAlignment;
1810         __le32 ByteOffsetForPartitionAlignment;
1811 } __packed;
1812
1813 /* File System Control Information */
1814 struct smb2_fs_control_info {
1815         __le64 FreeSpaceStartFiltering;
1816         __le64 FreeSpaceThreshold;
1817         __le64 FreeSpaceStopFiltering;
1818         __le64 DefaultQuotaThreshold;
1819         __le64 DefaultQuotaLimit;
1820         __le32 FileSystemControlFlags;
1821         __le32 Padding;
1822 } __packed;
1823
1824 /* volume info struct - see MS-FSCC 2.5.9 */
1825 #define MAX_VOL_LABEL_LEN       32
1826 struct smb3_fs_vol_info {
1827         __le64  VolumeCreationTime;
1828         __u32   VolumeSerialNumber;
1829         __le32  VolumeLabelLength; /* includes trailing null */
1830         __u8    SupportsObjects; /* True if eg like NTFS, supports objects */
1831         __u8    Reserved;
1832         __u8    VolumeLabel[]; /* variable len */
1833 } __packed;
1834
1835 /* See MS-SMB2 2.2.23 through 2.2.25 */
1836 struct smb2_oplock_break {
1837         struct smb2_hdr hdr;
1838         __le16 StructureSize; /* Must be 24 */
1839         __u8   OplockLevel;
1840         __u8   Reserved;
1841         __le32 Reserved2;
1842         __u64  PersistentFid;
1843         __u64  VolatileFid;
1844 } __packed;
1845
1846 #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1847
1848 struct smb2_lease_break {
1849         struct smb2_hdr hdr;
1850         __le16 StructureSize; /* Must be 44 */
1851         __le16 Epoch;
1852         __le32 Flags;
1853         __u8   LeaseKey[16];
1854         __le32 CurrentLeaseState;
1855         __le32 NewLeaseState;
1856         __le32 BreakReason;
1857         __le32 AccessMaskHint;
1858         __le32 ShareMaskHint;
1859 } __packed;
1860
1861 struct smb2_lease_ack {
1862         struct smb2_hdr hdr;
1863         __le16 StructureSize; /* Must be 36 */
1864         __le16 Reserved;
1865         __le32 Flags;
1866         __u8   LeaseKey[16];
1867         __le32 LeaseState;
1868         __le64 LeaseDuration;
1869 } __packed;
1870
1871 #define OP_BREAK_STRUCT_SIZE_20         24
1872 #define OP_BREAK_STRUCT_SIZE_21         36
1873 #endif                          /* _COMMON_SMB2PDU_H */