fs/smbfs_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 specfication.
  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
  38 /* The same list in little endian */
  39 #define SMB2_NEGOTIATE          cpu_to_le16(SMB2_NEGOTIATE_HE)
  40 #define SMB2_SESSION_SETUP      cpu_to_le16(SMB2_SESSION_SETUP_HE)
  41 #define SMB2_LOGOFF             cpu_to_le16(SMB2_LOGOFF_HE)
  42 #define SMB2_TREE_CONNECT       cpu_to_le16(SMB2_TREE_CONNECT_HE)
  43 #define SMB2_TREE_DISCONNECT    cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
  44 #define SMB2_CREATE             cpu_to_le16(SMB2_CREATE_HE)
  45 #define SMB2_CLOSE              cpu_to_le16(SMB2_CLOSE_HE)
  46 #define SMB2_FLUSH              cpu_to_le16(SMB2_FLUSH_HE)
  47 #define SMB2_READ               cpu_to_le16(SMB2_READ_HE)
  48 #define SMB2_WRITE              cpu_to_le16(SMB2_WRITE_HE)
  49 #define SMB2_LOCK               cpu_to_le16(SMB2_LOCK_HE)
  50 #define SMB2_IOCTL              cpu_to_le16(SMB2_IOCTL_HE)
  51 #define SMB2_CANCEL             cpu_to_le16(SMB2_CANCEL_HE)
  52 #define SMB2_ECHO               cpu_to_le16(SMB2_ECHO_HE)
  53 #define SMB2_QUERY_DIRECTORY    cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
  54 #define SMB2_CHANGE_NOTIFY      cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
  55 #define SMB2_QUERY_INFO         cpu_to_le16(SMB2_QUERY_INFO_HE)
  56 #define SMB2_SET_INFO           cpu_to_le16(SMB2_SET_INFO_HE)
  57 #define SMB2_OPLOCK_BREAK       cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
  58
  59 #define SMB2_INTERNAL_CMD       cpu_to_le16(0xFFFF)
  60
  61 #define NUMBER_OF_SMB2_COMMANDS 0x0013
  62
  63 /*
  64  * SMB2 Header Definition
  65  *
  66  * "MBZ" :  Must be Zero
  67  * "BB"  :  BugBug, Something to check/review/analyze later
  68  * "PDU" :  "Protocol Data Unit" (ie a network "frame")
  69  *
  70  */
  71
  72 #define __SMB2_HEADER_STRUCTURE_SIZE    64
  73 #define SMB2_HEADER_STRUCTURE_SIZE                              \
  74         cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
  75
  76 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
  77 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
  78 #define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
  79
  80 /*
  81  *      SMB2 flag definitions
  82  */
  83 #define SMB2_FLAGS_SERVER_TO_REDIR      cpu_to_le32(0x00000001)
  84 #define SMB2_FLAGS_ASYNC_COMMAND        cpu_to_le32(0x00000002)
  85 #define SMB2_FLAGS_RELATED_OPERATIONS   cpu_to_le32(0x00000004)
  86 #define SMB2_FLAGS_SIGNED               cpu_to_le32(0x00000008)
  87 #define SMB2_FLAGS_PRIORITY_MASK        cpu_to_le32(0x00000070) /* SMB3.1.1 */
  88 #define SMB2_FLAGS_DFS_OPERATIONS       cpu_to_le32(0x10000000)
  89 #define SMB2_FLAGS_REPLAY_OPERATION     cpu_to_le32(0x20000000) /* SMB3 & up */
  90
  91 /* See MS-SMB2 section 2.2.1 */
  92 struct smb2_hdr {
  93         __le32 ProtocolId;      /* 0xFE 'S' 'M' 'B' */
  94         __le16 StructureSize;   /* 64 */
  95         __le16 CreditCharge;    /* MBZ */
  96         __le32 Status;          /* Error from server */
  97         __le16 Command;
  98         __le16 CreditRequest;   /* CreditResponse */
  99         __le32 Flags;
 100         __le32 NextCommand;
 101         __le64 MessageId;
 102         union {
 103                 struct {
 104                         __le32 ProcessId;
 105                         __le32  TreeId;
 106                 } __packed SyncId;
 107                 __le64  AsyncId;
 108         } __packed Id;
 109         __le64  SessionId;
 110         __u8   Signature[16];
 111 } __packed;
 112
 113 struct smb2_pdu {
 114         struct smb2_hdr hdr;
 115         __le16 StructureSize2; /* size of wct area (varies, request specific) */
 116 } __packed;
 117
 118 #define SMB2_ERROR_STRUCTURE_SIZE2      9
 119 #define SMB2_ERROR_STRUCTURE_SIZE2_LE   cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)
 120
 121 struct smb2_err_rsp {
 122         struct smb2_hdr hdr;
 123         __le16 StructureSize;
 124         __u8   ErrorContextCount;
 125         __u8   Reserved;
 126         __le32 ByteCount;  /* even if zero, at least one byte follows */
 127         __u8   ErrorData[1];  /* variable length */
 128 } __packed;
 129
 130 #define SMB3_AES_CCM_NONCE 11
 131 #define SMB3_AES_GCM_NONCE 12
 132
 133 /* Transform flags (for 3.0 dialect this flag indicates CCM */
 134 #define TRANSFORM_FLAG_ENCRYPTED        0x0001
 135 struct smb2_transform_hdr {
 136         __le32 ProtocolId;      /* 0xFD 'S' 'M' 'B' */
 137         __u8   Signature[16];
 138         __u8   Nonce[16];
 139         __le32 OriginalMessageSize;
 140         __u16  Reserved1;
 141         __le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
 142         __le64  SessionId;
 143 } __packed;
 144
 145
 146 /* See MS-SMB2 2.2.42 */
 147 struct smb2_compression_transform_hdr_unchained {
 148         __le32 ProtocolId;      /* 0xFC 'S' 'M' 'B' */
 149         __le32 OriginalCompressedSegmentSize;
 150         __le16 CompressionAlgorithm;
 151         __le16 Flags;
 152         __le16 Length; /* if chained it is length, else offset */
 153 } __packed;
 154
 155 /* See MS-SMB2 2.2.42.1 */
 156 #define SMB2_COMPRESSION_FLAG_NONE      0x0000
 157 #define SMB2_COMPRESSION_FLAG_CHAINED   0x0001
 158
 159 struct compression_payload_header {
 160         __le16  CompressionAlgorithm;
 161         __le16  Flags;
 162         __le32  Length; /* length of compressed playload including field below if present */
 163         /* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */
 164 } __packed;
 165
 166 /* See MS-SMB2 2.2.42.2 */
 167 struct smb2_compression_transform_hdr_chained {
 168         __le32 ProtocolId;      /* 0xFC 'S' 'M' 'B' */
 169         __le32 OriginalCompressedSegmentSize;
 170         /* struct compression_payload_header[] */
 171 } __packed;
 172
 173 /* See MS-SMB2 2.2.42.2.2 */
 174 struct compression_pattern_payload_v1 {
 175         __le16  Pattern;
 176         __le16  Reserved1;
 177         __le16  Reserved2;
 178         __le32  Repetitions;
 179 } __packed;
 180
 181 /* See MS-SMB2 section 2.2.9.2 */
 182 /* Context Types */
 183 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
 184 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
 185
 186 struct tree_connect_contexts {
 187         __le16 ContextType;
 188         __le16 DataLength;
 189         __le32 Reserved;
 190         __u8   Data[];
 191 } __packed;
 192
 193 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
 194 struct smb3_blob_data {
 195         __le16 BlobSize;
 196         __u8   BlobData[];
 197 } __packed;
 198
 199 /* Valid values for Attr */
 200 #define SE_GROUP_MANDATORY              0x00000001
 201 #define SE_GROUP_ENABLED_BY_DEFAULT     0x00000002
 202 #define SE_GROUP_ENABLED                0x00000004
 203 #define SE_GROUP_OWNER                  0x00000008
 204 #define SE_GROUP_USE_FOR_DENY_ONLY      0x00000010
 205 #define SE_GROUP_INTEGRITY              0x00000020
 206 #define SE_GROUP_INTEGRITY_ENABLED      0x00000040
 207 #define SE_GROUP_RESOURCE               0x20000000
 208 #define SE_GROUP_LOGON_ID               0xC0000000
 209
 210 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
 211
 212 struct sid_array_data {
 213         __le16 SidAttrCount;
 214         /* SidAttrList - array of sid_attr_data structs */
 215 } __packed;
 216
 217 struct luid_attr_data {
 218
 219 } __packed;
 220
 221 /*
 222  * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
 223  * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
 224  */
 225
 226 struct privilege_array_data {
 227         __le16 PrivilegeCount;
 228         /* array of privilege_data structs */
 229 } __packed;
 230
 231 struct remoted_identity_tcon_context {
 232         __le16 TicketType; /* must be 0x0001 */
 233         __le16 TicketSize; /* total size of this struct */
 234         __le16 User; /* offset to SID_ATTR_DATA struct with user info */
 235         __le16 UserName; /* offset to null terminated Unicode username string */
 236         __le16 Domain; /* offset to null terminated Unicode domain name */
 237         __le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
 238         __le16 RestrictedGroups; /* similar to above */
 239         __le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
 240         __le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
 241         __le16 Owner; /* offset to BLOB_DATA struct */
 242         __le16 DefaultDacl; /* offset to BLOB_DATA struct */
 243         __le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
 244         __le16 UserClaims; /* offset to BLOB_DATA struct */
 245         __le16 DeviceClaims; /* offset to BLOB_DATA struct */
 246         __u8   TicketInfo[]; /* variable length buf - remoted identity data */
 247 } __packed;
 248
 249 struct smb2_tree_connect_req_extension {
 250         __le32 TreeConnectContextOffset;
 251         __le16 TreeConnectContextCount;
 252         __u8  Reserved[10];
 253         __u8  PathName[]; /* variable sized array */
 254         /* followed by array of TreeConnectContexts */
 255 } __packed;
 256
 257 /* Flags/Reserved for SMB3.1.1 */
 258 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
 259 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
 260 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
 261
 262 struct smb2_tree_connect_req {
 263         struct smb2_hdr hdr;
 264         __le16 StructureSize;   /* Must be 9 */
 265         __le16 Flags;           /* Flags in SMB3.1.1 */
 266         __le16 PathOffset;
 267         __le16 PathLength;
 268         __u8   Buffer[1];       /* variable length */
 269 } __packed;
 270
 271 /* Possible ShareType values */
 272 #define SMB2_SHARE_TYPE_DISK    0x01
 273 #define SMB2_SHARE_TYPE_PIPE    0x02
 274 #define SMB2_SHARE_TYPE_PRINT   0x03
 275
 276 /*
 277  * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 278  * must be set (any of the remaining, SHI1005, flags may be set individually
 279  * or in combination.
 280  */
 281 #define SMB2_SHAREFLAG_MANUAL_CACHING                   0x00000000
 282 #define SMB2_SHAREFLAG_AUTO_CACHING                     0x00000010
 283 #define SMB2_SHAREFLAG_VDO_CACHING                      0x00000020
 284 #define SMB2_SHAREFLAG_NO_CACHING                       0x00000030
 285 #define SHI1005_FLAGS_DFS                               0x00000001
 286 #define SHI1005_FLAGS_DFS_ROOT                          0x00000002
 287 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS          0x00000100
 288 #define SHI1005_FLAGS_FORCE_SHARED_DELETE               0x00000200
 289 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING           0x00000400
 290 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM       0x00000800
 291 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK              0x00001000
 292 #define SHI1005_FLAGS_ENABLE_HASH_V1                    0x00002000
 293 #define SHI1005_FLAGS_ENABLE_HASH_V2                    0x00004000
 294 #define SHI1005_FLAGS_ENCRYPT_DATA                      0x00008000
 295 #define SMB2_SHAREFLAG_IDENTITY_REMOTING                0x00040000 /* 3.1.1 */
 296 #define SMB2_SHAREFLAG_COMPRESS_DATA                    0x00100000 /* 3.1.1 */
 297 #define SHI1005_FLAGS_ALL                               0x0014FF33
 298
 299 /* Possible share capabilities */
 300 #define SMB2_SHARE_CAP_DFS      cpu_to_le32(0x00000008) /* all dialects */
 301 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
 302 #define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */
 303 #define SMB2_SHARE_CAP_CLUSTER  cpu_to_le32(0x00000040) /* 3.0 */
 304 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
 305 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
 306
 307 struct smb2_tree_connect_rsp {
 308         struct smb2_hdr hdr;
 309         __le16 StructureSize;   /* Must be 16 */
 310         __u8   ShareType;       /* see below */
 311         __u8   Reserved;
 312         __le32 ShareFlags;      /* see below */
 313         __le32 Capabilities;    /* see below */
 314         __le32 MaximalAccess;
 315 } __packed;
 316
 317 struct smb2_tree_disconnect_req {
 318         struct smb2_hdr hdr;
 319         __le16 StructureSize;   /* Must be 4 */
 320         __le16 Reserved;
 321 } __packed;
 322
 323 struct smb2_tree_disconnect_rsp {
 324         struct smb2_hdr hdr;
 325         __le16 StructureSize;   /* Must be 4 */
 326         __le16 Reserved;
 327 } __packed;
 328
 329
 330 /*
 331  * SMB2_NEGOTIATE_PROTOCOL  See MS-SMB2 section 2.2.3
 332  */
 333 /* SecurityMode flags */
 334 #define SMB2_NEGOTIATE_SIGNING_ENABLED     0x0001
 335 #define SMB2_NEGOTIATE_SIGNING_ENABLED_LE  cpu_to_le16(0x0001)
 336 #define SMB2_NEGOTIATE_SIGNING_REQUIRED    0x0002
 337 #define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002)
 338 #define SMB2_SEC_MODE_FLAGS_ALL            0x0003
 339
 340 /* Capabilities flags */
 341 #define SMB2_GLOBAL_CAP_DFS             0x00000001
 342 #define SMB2_GLOBAL_CAP_LEASING         0x00000002 /* Resp only New to SMB2.1 */
 343 #define SMB2_GLOBAL_CAP_LARGE_MTU       0X00000004 /* Resp only New to SMB2.1 */
 344 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL   0x00000008 /* New to SMB3 */
 345 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
 346 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
 347 #define SMB2_GLOBAL_CAP_ENCRYPTION      0x00000040 /* New to SMB3 */
 348 /* Internal types */
 349 #define SMB2_NT_FIND                    0x00100000
 350 #define SMB2_LARGE_FILES                0x00200000
 351
 352 #define SMB2_CLIENT_GUID_SIZE           16
 353 #define SMB2_CREATE_GUID_SIZE           16
 354
 355 /* Dialects */
 356 #define SMB10_PROT_ID  0x0000 /* local only, not sent on wire w/CIFS negprot */
 357 #define SMB20_PROT_ID  0x0202
 358 #define SMB21_PROT_ID  0x0210
 359 #define SMB2X_PROT_ID  0x02FF
 360 #define SMB30_PROT_ID  0x0300
 361 #define SMB302_PROT_ID 0x0302
 362 #define SMB311_PROT_ID 0x0311
 363 #define BAD_PROT_ID    0xFFFF
 364
 365 #define SMB311_SALT_SIZE                        32
 366 /* Hash Algorithm Types */
 367 #define SMB2_PREAUTH_INTEGRITY_SHA512   cpu_to_le16(0x0001)
 368 #define SMB2_PREAUTH_HASH_SIZE 64
 369
 370 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
 371 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES     cpu_to_le16(1)
 372 #define SMB2_ENCRYPTION_CAPABILITIES            cpu_to_le16(2)
 373 #define SMB2_COMPRESSION_CAPABILITIES           cpu_to_le16(3)
 374 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID       cpu_to_le16(5)
 375 #define SMB2_TRANSPORT_CAPABILITIES             cpu_to_le16(6)
 376 #define SMB2_RDMA_TRANSFORM_CAPABILITIES        cpu_to_le16(7)
 377 #define SMB2_SIGNING_CAPABILITIES               cpu_to_le16(8)
 378 #define SMB2_POSIX_EXTENSIONS_AVAILABLE         cpu_to_le16(0x100)
 379
 380 struct smb2_neg_context {
 381         __le16  ContextType;
 382         __le16  DataLength;
 383         __le32  Reserved;
 384         /* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */
 385 } __packed;
 386
 387 /*
 388  * SaltLength that the server send can be zero, so the only three required
 389  * fields (all __le16) end up six bytes total, so the minimum context data len
 390  * in the response is six bytes which accounts for
 391  *
 392  *      HashAlgorithmCount, SaltLength, and 1 HashAlgorithm.
 393  */
 394 #define MIN_PREAUTH_CTXT_DATA_LEN 6
 395
 396 struct smb2_preauth_neg_context {
 397         __le16  ContextType; /* 1 */
 398         __le16  DataLength;
 399         __le32  Reserved;
 400         __le16  HashAlgorithmCount; /* 1 */
 401         __le16  SaltLength;
 402         __le16  HashAlgorithms; /* HashAlgorithms[0] since only one defined */
 403         __u8    Salt[SMB311_SALT_SIZE];
 404 } __packed;
 405
 406 /* Encryption Algorithms Ciphers */
 407 #define SMB2_ENCRYPTION_AES128_CCM      cpu_to_le16(0x0001)
 408 #define SMB2_ENCRYPTION_AES128_GCM      cpu_to_le16(0x0002)
 409 #define SMB2_ENCRYPTION_AES256_CCM      cpu_to_le16(0x0003)
 410 #define SMB2_ENCRYPTION_AES256_GCM      cpu_to_le16(0x0004)
 411
 412 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
 413 #define MIN_ENCRYPT_CTXT_DATA_LEN       4
 414 struct smb2_encryption_neg_context {
 415         __le16  ContextType; /* 2 */
 416         __le16  DataLength;
 417         __le32  Reserved;
 418         /* CipherCount usally 2, but can be 3 when AES256-GCM enabled */
 419         __le16  CipherCount; /* AES128-GCM and AES128-CCM by default */
 420         __le16  Ciphers[];
 421 } __packed;
 422
 423 /* See MS-SMB2 2.2.3.1.3 */
 424 #define SMB3_COMPRESS_NONE      cpu_to_le16(0x0000)
 425 #define SMB3_COMPRESS_LZNT1     cpu_to_le16(0x0001)
 426 #define SMB3_COMPRESS_LZ77      cpu_to_le16(0x0002)
 427 #define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003)
 428 /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
 429 #define SMB3_COMPRESS_PATTERN   cpu_to_le16(0x0004) /* Pattern_V1 */
 430
 431 /* Compression Flags */
 432 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE         cpu_to_le32(0x00000000)
 433 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED      cpu_to_le32(0x00000001)
 434
 435 struct smb2_compression_capabilities_context {
 436         __le16  ContextType; /* 3 */
 437         __le16  DataLength;
 438         __le32  Reserved;
 439         __le16  CompressionAlgorithmCount;
 440         __le16  Padding;
 441         __le32  Flags;
 442         __le16  CompressionAlgorithms[3];
 443         __u16   Pad;  /* Some servers require pad to DataLen multiple of 8 */
 444         /* Check if pad needed */
 445 } __packed;
 446
 447 /*
 448  * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
 449  * Its struct simply contains NetName, an array of Unicode characters
 450  */
 451 struct smb2_netname_neg_context {
 452         __le16  ContextType; /* 5 */
 453         __le16  DataLength;
 454         __le32  Reserved;
 455         __le16  NetName[]; /* hostname of target converted to UCS-2 */
 456 } __packed;
 457
 458 /*
 459  * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
 460  * and 2.2.4.1.5
 461  */
 462
 463 /* Flags */
 464 #define SMB2_ACCEPT_TRANSPORT_LEVEL_SECURITY    0x00000001
 465
 466 struct smb2_transport_capabilities_context {
 467         __le16  ContextType; /* 6 */
 468         __le16  DataLength;
 469         __u32   Reserved;
 470         __le32  Flags;
 471         __u32   Pad;
 472 } __packed;
 473
 474 /*
 475  * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
 476  * and 2.2.4.1.6
 477  */
 478
 479 /* RDMA Transform IDs */
 480 #define SMB2_RDMA_TRANSFORM_NONE        0x0000
 481 #define SMB2_RDMA_TRANSFORM_ENCRYPTION  0x0001
 482 #define SMB2_RDMA_TRANSFORM_SIGNING     0x0002
 483
 484 struct smb2_rdma_transform_capabilities_context {
 485         __le16  ContextType; /* 7 */
 486         __le16  DataLength;
 487         __u32   Reserved;
 488         __le16  TransformCount;
 489         __u16   Reserved1;
 490         __u32   Reserved2;
 491         __le16  RDMATransformIds[];
 492 } __packed;
 493
 494 /*
 495  * For signing capabilities context see MS-SMB2 2.2.3.1.7
 496  * and 2.2.4.1.7
 497  */
 498
 499 /* Signing algorithms */
 500 #define SIGNING_ALG_HMAC_SHA256    0
 501 #define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0)
 502 #define SIGNING_ALG_AES_CMAC       1
 503 #define SIGNING_ALG_AES_CMAC_LE    cpu_to_le16(1)
 504 #define SIGNING_ALG_AES_GMAC       2
 505 #define SIGNING_ALG_AES_GMAC_LE    cpu_to_le16(2)
 506
 507 struct smb2_signing_capabilities {
 508         __le16  ContextType; /* 8 */
 509         __le16  DataLength;
 510         __le32  Reserved;
 511         __le16  SigningAlgorithmCount;
 512         __le16  SigningAlgorithms[];
 513         /*  Followed by padding to 8 byte boundary (required by some servers) */
 514 } __packed;
 515
 516 #define POSIX_CTXT_DATA_LEN     16
 517 struct smb2_posix_neg_context {
 518         __le16  ContextType; /* 0x100 */
 519         __le16  DataLength;
 520         __le32  Reserved;
 521         __u8    Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
 522 } __packed;
 523
 524 struct smb2_negotiate_req {
 525         struct smb2_hdr hdr;
 526         __le16 StructureSize; /* Must be 36 */
 527         __le16 DialectCount;
 528         __le16 SecurityMode;
 529         __le16 Reserved;        /* MBZ */
 530         __le32 Capabilities;
 531         __u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
 532         /* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
 533         __le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
 534         __le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
 535         __le16 Reserved2;
 536         __le16 Dialects[];
 537 } __packed;
 538
 539 struct smb2_negotiate_rsp {
 540         struct smb2_hdr hdr;
 541         __le16 StructureSize;   /* Must be 65 */
 542         __le16 SecurityMode;
 543         __le16 DialectRevision;
 544         __le16 NegotiateContextCount;   /* Prior to SMB3.1.1 was Reserved & MBZ */
 545         __u8   ServerGUID[16];
 546         __le32 Capabilities;
 547         __le32 MaxTransactSize;
 548         __le32 MaxReadSize;
 549         __le32 MaxWriteSize;
 550         __le64 SystemTime;      /* MBZ */
 551         __le64 ServerStartTime;
 552         __le16 SecurityBufferOffset;
 553         __le16 SecurityBufferLength;
 554         __le32 NegotiateContextOffset;  /* Pre:SMB3.1.1 was reserved/ignored */
 555         __u8   Buffer[1];       /* variable length GSS security buffer */
 556 } __packed;
 557
 558
 559 /*
 560  * SMB2_SESSION_SETUP  See MS-SMB2 section 2.2.5
 561  */
 562 /* Flags */
 563 #define SMB2_SESSION_REQ_FLAG_BINDING           0x01
 564 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA      0x04
 565
 566 struct smb2_sess_setup_req {
 567         struct smb2_hdr hdr;
 568         __le16 StructureSize; /* Must be 25 */
 569         __u8   Flags;
 570         __u8   SecurityMode;
 571         __le32 Capabilities;
 572         __le32 Channel;
 573         __le16 SecurityBufferOffset;
 574         __le16 SecurityBufferLength;
 575         __le64 PreviousSessionId;
 576         __u8   Buffer[1];       /* variable length GSS security buffer */
 577 } __packed;
 578
 579 /* Currently defined SessionFlags */
 580 #define SMB2_SESSION_FLAG_IS_GUEST        0x0001
 581 #define SMB2_SESSION_FLAG_IS_GUEST_LE     cpu_to_le16(0x0001)
 582 #define SMB2_SESSION_FLAG_IS_NULL         0x0002
 583 #define SMB2_SESSION_FLAG_IS_NULL_LE      cpu_to_le16(0x0002)
 584 #define SMB2_SESSION_FLAG_ENCRYPT_DATA    0x0004
 585 #define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
 586
 587 struct smb2_sess_setup_rsp {
 588         struct smb2_hdr hdr;
 589         __le16 StructureSize; /* Must be 9 */
 590         __le16 SessionFlags;
 591         __le16 SecurityBufferOffset;
 592         __le16 SecurityBufferLength;
 593         __u8   Buffer[1];       /* variable length GSS security buffer */
 594 } __packed;
 595
 596
 597 /*
 598  * SMB2_LOGOFF  See MS-SMB2 section 2.2.7
 599  */
 600 struct smb2_logoff_req {
 601         struct smb2_hdr hdr;
 602         __le16 StructureSize;   /* Must be 4 */
 603         __le16 Reserved;
 604 } __packed;
 605
 606 struct smb2_logoff_rsp {
 607         struct smb2_hdr hdr;
 608         __le16 StructureSize;   /* Must be 4 */
 609         __le16 Reserved;
 610 } __packed;
 611
 612
 613 /*
 614  * SMB2_CLOSE  See MS-SMB2 section 2.2.15
 615  */
 616 /* Currently defined values for close flags */
 617 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB        cpu_to_le16(0x0001)
 618 struct smb2_close_req {
 619         struct smb2_hdr hdr;
 620         __le16 StructureSize;   /* Must be 24 */
 621         __le16 Flags;
 622         __le32 Reserved;
 623         __u64  PersistentFileId; /* opaque endianness */
 624         __u64  VolatileFileId; /* opaque endianness */
 625 } __packed;
 626
 627 /*
 628  * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
 629  */
 630 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
 631
 632 struct smb2_close_rsp {
 633         struct smb2_hdr hdr;
 634         __le16 StructureSize; /* 60 */
 635         __le16 Flags;
 636         __le32 Reserved;
 637         __le64 CreationTime;
 638         __le64 LastAccessTime;
 639         __le64 LastWriteTime;
 640         __le64 ChangeTime;
 641         __le64 AllocationSize;  /* Beginning of FILE_STANDARD_INFO equivalent */
 642         __le64 EndOfFile;
 643         __le32 Attributes;
 644 } __packed;
 645
 646
 647 /*
 648  * SMB2_READ  See MS-SMB2 section 2.2.19
 649  */
 650 /* For read request Flags field below, following flag is defined for SMB3.02 */
 651 #define SMB2_READFLAG_READ_UNBUFFERED   0x01
 652 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
 653
 654 /* Channel field for read and write: exactly one of following flags can be set*/
 655 #define SMB2_CHANNEL_NONE               cpu_to_le32(0x00000000)
 656 #define SMB2_CHANNEL_RDMA_V1            cpu_to_le32(0x00000001)
 657 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
 658 #define SMB2_CHANNEL_RDMA_TRANSFORM     cpu_to_le32(0x00000003)
 659
 660 /* SMB2 read request without RFC1001 length at the beginning */
 661 struct smb2_read_req {
 662         struct smb2_hdr hdr;
 663         __le16 StructureSize; /* Must be 49 */
 664         __u8   Padding; /* offset from start of SMB2 header to place read */
 665         __u8   Flags; /* MBZ unless SMB3.02 or later */
 666         __le32 Length;
 667         __le64 Offset;
 668         __u64  PersistentFileId;
 669         __u64  VolatileFileId;
 670         __le32 MinimumCount;
 671         __le32 Channel; /* MBZ except for SMB3 or later */
 672         __le32 RemainingBytes;
 673         __le16 ReadChannelInfoOffset;
 674         __le16 ReadChannelInfoLength;
 675         __u8   Buffer[1];
 676 } __packed;
 677
 678 /* Read flags */
 679 #define SMB2_READFLAG_RESPONSE_NONE            cpu_to_le32(0x00000000)
 680 #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM  cpu_to_le32(0x00000001)
 681
 682 struct smb2_read_rsp {
 683         struct smb2_hdr hdr;
 684         __le16 StructureSize; /* Must be 17 */
 685         __u8   DataOffset;
 686         __u8   Reserved;
 687         __le32 DataLength;
 688         __le32 DataRemaining;
 689         __le32 Flags;
 690         __u8   Buffer[1];
 691 } __packed;
 692
 693
 694 /*
 695  * SMB2_WRITE  See MS-SMB2 section 2.2.21
 696  */
 697 /* For write request Flags field below the following flags are defined: */
 698 #define SMB2_WRITEFLAG_WRITE_THROUGH    0x00000001      /* SMB2.1 or later */
 699 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002      /* SMB3.02 or later */
 700
 701 struct smb2_write_req {
 702         struct smb2_hdr hdr;
 703         __le16 StructureSize; /* Must be 49 */
 704         __le16 DataOffset; /* offset from start of SMB2 header to write data */
 705         __le32 Length;
 706         __le64 Offset;
 707         __u64  PersistentFileId; /* opaque endianness */
 708         __u64  VolatileFileId; /* opaque endianness */
 709         __le32 Channel; /* MBZ unless SMB3.02 or later */
 710         __le32 RemainingBytes;
 711         __le16 WriteChannelInfoOffset;
 712         __le16 WriteChannelInfoLength;
 713         __le32 Flags;
 714         __u8   Buffer[1];
 715 } __packed;
 716
 717 struct smb2_write_rsp {
 718         struct smb2_hdr hdr;
 719         __le16 StructureSize; /* Must be 17 */
 720         __u8   DataOffset;
 721         __u8   Reserved;
 722         __le32 DataLength;
 723         __le32 DataRemaining;
 724         __u32  Reserved2;
 725         __u8   Buffer[1];
 726 } __packed;
 727
 728
 729 /*
 730  * SMB2_FLUSH  See MS-SMB2 section 2.2.17
 731  */
 732 struct smb2_flush_req {
 733         struct smb2_hdr hdr;
 734         __le16 StructureSize;   /* Must be 24 */
 735         __le16 Reserved1;
 736         __le32 Reserved2;
 737         __u64  PersistentFileId;
 738         __u64  VolatileFileId;
 739 } __packed;
 740
 741 struct smb2_flush_rsp {
 742         struct smb2_hdr hdr;
 743         __le16 StructureSize;
 744         __le16 Reserved;
 745 } __packed;
 746
 747
 748 /*
 749  * SMB2_NOTIFY  See MS-SMB2 section 2.2.35
 750  */
 751 /* notify flags */
 752 #define SMB2_WATCH_TREE                 0x0001
 753
 754 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
 755 #define FILE_NOTIFY_CHANGE_FILE_NAME            0x00000001
 756 #define FILE_NOTIFY_CHANGE_DIR_NAME             0x00000002
 757 #define FILE_NOTIFY_CHANGE_ATTRIBUTES           0x00000004
 758 #define FILE_NOTIFY_CHANGE_SIZE                 0x00000008
 759 #define FILE_NOTIFY_CHANGE_LAST_WRITE           0x00000010
 760 #define FILE_NOTIFY_CHANGE_LAST_ACCESS          0x00000020
 761 #define FILE_NOTIFY_CHANGE_CREATION             0x00000040
 762 #define FILE_NOTIFY_CHANGE_EA                   0x00000080
 763 #define FILE_NOTIFY_CHANGE_SECURITY             0x00000100
 764 #define FILE_NOTIFY_CHANGE_STREAM_NAME          0x00000200
 765 #define FILE_NOTIFY_CHANGE_STREAM_SIZE          0x00000400
 766 #define FILE_NOTIFY_CHANGE_STREAM_WRITE         0x00000800
 767
 768 /* SMB2 Notify Action Flags */
 769 #define FILE_ACTION_ADDED                       0x00000001
 770 #define FILE_ACTION_REMOVED                     0x00000002
 771 #define FILE_ACTION_MODIFIED                    0x00000003
 772 #define FILE_ACTION_RENAMED_OLD_NAME            0x00000004
 773 #define FILE_ACTION_RENAMED_NEW_NAME            0x00000005
 774 #define FILE_ACTION_ADDED_STREAM                0x00000006
 775 #define FILE_ACTION_REMOVED_STREAM              0x00000007
 776 #define FILE_ACTION_MODIFIED_STREAM             0x00000008
 777 #define FILE_ACTION_REMOVED_BY_DELETE           0x00000009
 778
 779 struct smb2_change_notify_req {
 780         struct smb2_hdr hdr;
 781         __le16  StructureSize;
 782         __le16  Flags;
 783         __le32  OutputBufferLength;
 784         __u64   PersistentFileId; /* opaque endianness */
 785         __u64   VolatileFileId; /* opaque endianness */
 786         __le32  CompletionFilter;
 787         __u32   Reserved;
 788 } __packed;
 789
 790 struct smb2_change_notify_rsp {
 791         struct smb2_hdr hdr;
 792         __le16  StructureSize;  /* Must be 9 */
 793         __le16  OutputBufferOffset;
 794         __le32  OutputBufferLength;
 795         __u8    Buffer[1]; /* array of file notify structs */
 796 } __packed;
 797
 798
 799 /*
 800  * SMB2_CREATE  See MS-SMB2 section 2.2.13
 801  */
 802 /* Oplock levels */
 803 #define SMB2_OPLOCK_LEVEL_NONE          0x00
 804 #define SMB2_OPLOCK_LEVEL_II            0x01
 805 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE     0x08
 806 #define SMB2_OPLOCK_LEVEL_BATCH         0x09
 807 #define SMB2_OPLOCK_LEVEL_LEASE         0xFF
 808 /* Non-spec internal type */
 809 #define SMB2_OPLOCK_LEVEL_NOCHANGE      0x99
 810
 811 /* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
 812 #define IL_ANONYMOUS            cpu_to_le32(0x00000000)
 813 #define IL_IDENTIFICATION       cpu_to_le32(0x00000001)
 814 #define IL_IMPERSONATION        cpu_to_le32(0x00000002)
 815 #define IL_DELEGATE             cpu_to_le32(0x00000003)
 816
 817 /* File Attrubutes */
 818 #define FILE_ATTRIBUTE_READONLY                 0x00000001
 819 #define FILE_ATTRIBUTE_HIDDEN                   0x00000002
 820 #define FILE_ATTRIBUTE_SYSTEM                   0x00000004
 821 #define FILE_ATTRIBUTE_DIRECTORY                0x00000010
 822 #define FILE_ATTRIBUTE_ARCHIVE                  0x00000020
 823 #define FILE_ATTRIBUTE_NORMAL                   0x00000080
 824 #define FILE_ATTRIBUTE_TEMPORARY                0x00000100
 825 #define FILE_ATTRIBUTE_SPARSE_FILE              0x00000200
 826 #define FILE_ATTRIBUTE_REPARSE_POINT            0x00000400
 827 #define FILE_ATTRIBUTE_COMPRESSED               0x00000800
 828 #define FILE_ATTRIBUTE_OFFLINE                  0x00001000
 829 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED      0x00002000
 830 #define FILE_ATTRIBUTE_ENCRYPTED                0x00004000
 831 #define FILE_ATTRIBUTE_INTEGRITY_STREAM         0x00008000
 832 #define FILE_ATTRIBUTE_NO_SCRUB_DATA            0x00020000
 833 #define FILE_ATTRIBUTE__MASK                    0x00007FB7
 834
 835 #define FILE_ATTRIBUTE_READONLY_LE              cpu_to_le32(0x00000001)
 836 #define FILE_ATTRIBUTE_HIDDEN_LE                cpu_to_le32(0x00000002)
 837 #define FILE_ATTRIBUTE_SYSTEM_LE                cpu_to_le32(0x00000004)
 838 #define FILE_ATTRIBUTE_DIRECTORY_LE             cpu_to_le32(0x00000010)
 839 #define FILE_ATTRIBUTE_ARCHIVE_LE               cpu_to_le32(0x00000020)
 840 #define FILE_ATTRIBUTE_NORMAL_LE                cpu_to_le32(0x00000080)
 841 #define FILE_ATTRIBUTE_TEMPORARY_LE             cpu_to_le32(0x00000100)
 842 #define FILE_ATTRIBUTE_SPARSE_FILE_LE           cpu_to_le32(0x00000200)
 843 #define FILE_ATTRIBUTE_REPARSE_POINT_LE         cpu_to_le32(0x00000400)
 844 #define FILE_ATTRIBUTE_COMPRESSED_LE            cpu_to_le32(0x00000800)
 845 #define FILE_ATTRIBUTE_OFFLINE_LE               cpu_to_le32(0x00001000)
 846 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE   cpu_to_le32(0x00002000)
 847 #define FILE_ATTRIBUTE_ENCRYPTED_LE             cpu_to_le32(0x00004000)
 848 #define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE      cpu_to_le32(0x00008000)
 849 #define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE         cpu_to_le32(0x00020000)
 850 #define FILE_ATTRIBUTE_MASK_LE                  cpu_to_le32(0x00007FB7)
 851
 852 /* Desired Access Flags */
 853 #define FILE_READ_DATA_LE               cpu_to_le32(0x00000001)
 854 #define FILE_LIST_DIRECTORY_LE          cpu_to_le32(0x00000001)
 855 #define FILE_WRITE_DATA_LE              cpu_to_le32(0x00000002)
 856 #define FILE_APPEND_DATA_LE             cpu_to_le32(0x00000004)
 857 #define FILE_ADD_SUBDIRECTORY_LE        cpu_to_le32(0x00000004)
 858 #define FILE_READ_EA_LE                 cpu_to_le32(0x00000008)
 859 #define FILE_WRITE_EA_LE                cpu_to_le32(0x00000010)
 860 #define FILE_EXECUTE_LE                 cpu_to_le32(0x00000020)
 861 #define FILE_DELETE_CHILD_LE            cpu_to_le32(0x00000040)
 862 #define FILE_READ_ATTRIBUTES_LE         cpu_to_le32(0x00000080)
 863 #define FILE_WRITE_ATTRIBUTES_LE        cpu_to_le32(0x00000100)
 864 #define FILE_DELETE_LE                  cpu_to_le32(0x00010000)
 865 #define FILE_READ_CONTROL_LE            cpu_to_le32(0x00020000)
 866 #define FILE_WRITE_DAC_LE               cpu_to_le32(0x00040000)
 867 #define FILE_WRITE_OWNER_LE             cpu_to_le32(0x00080000)
 868 #define FILE_SYNCHRONIZE_LE             cpu_to_le32(0x00100000)
 869 #define FILE_ACCESS_SYSTEM_SECURITY_LE  cpu_to_le32(0x01000000)
 870 #define FILE_MAXIMAL_ACCESS_LE          cpu_to_le32(0x02000000)
 871 #define FILE_GENERIC_ALL_LE             cpu_to_le32(0x10000000)
 872 #define FILE_GENERIC_EXECUTE_LE         cpu_to_le32(0x20000000)
 873 #define FILE_GENERIC_WRITE_LE           cpu_to_le32(0x40000000)
 874 #define FILE_GENERIC_READ_LE            cpu_to_le32(0x80000000)
 875 #define DESIRED_ACCESS_MASK             cpu_to_le32(0xF21F01FF)
 876
 877
 878 #define FILE_READ_DESIRED_ACCESS_LE     (FILE_READ_DATA_LE        |     \
 879                                          FILE_READ_EA_LE          |     \
 880                                          FILE_GENERIC_READ_LE)
 881 #define FILE_WRITE_DESIRE_ACCESS_LE     (FILE_WRITE_DATA_LE       |     \
 882                                          FILE_APPEND_DATA_LE      |     \
 883                                          FILE_WRITE_EA_LE         |     \
 884                                          FILE_WRITE_ATTRIBUTES_LE |     \
 885                                          FILE_GENERIC_WRITE_LE)
 886
 887 /* ShareAccess Flags */
 888 #define FILE_SHARE_READ_LE              cpu_to_le32(0x00000001)
 889 #define FILE_SHARE_WRITE_LE             cpu_to_le32(0x00000002)
 890 #define FILE_SHARE_DELETE_LE            cpu_to_le32(0x00000004)
 891 #define FILE_SHARE_ALL_LE               cpu_to_le32(0x00000007)
 892
 893 /* CreateDisposition Flags */
 894 #define FILE_SUPERSEDE_LE               cpu_to_le32(0x00000000)
 895 #define FILE_OPEN_LE                    cpu_to_le32(0x00000001)
 896 #define FILE_CREATE_LE                  cpu_to_le32(0x00000002)
 897 #define FILE_OPEN_IF_LE                 cpu_to_le32(0x00000003)
 898 #define FILE_OVERWRITE_LE               cpu_to_le32(0x00000004)
 899 #define FILE_OVERWRITE_IF_LE            cpu_to_le32(0x00000005)
 900 #define FILE_CREATE_MASK_LE             cpu_to_le32(0x00000007)
 901
 902 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
 903                         | FILE_READ_ATTRIBUTES)
 904 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
 905                         | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
 906 #define FILE_EXEC_RIGHTS (FILE_EXECUTE)
 907
 908 /* CreateOptions Flags */
 909 #define FILE_DIRECTORY_FILE_LE          cpu_to_le32(0x00000001)
 910 /* same as #define CREATE_NOT_FILE_LE   cpu_to_le32(0x00000001) */
 911 #define FILE_WRITE_THROUGH_LE           cpu_to_le32(0x00000002)
 912 #define FILE_SEQUENTIAL_ONLY_LE         cpu_to_le32(0x00000004)
 913 #define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
 914 #define FILE_NON_DIRECTORY_FILE_LE      cpu_to_le32(0x00000040)
 915 #define FILE_COMPLETE_IF_OPLOCKED_LE    cpu_to_le32(0x00000100)
 916 #define FILE_NO_EA_KNOWLEDGE_LE         cpu_to_le32(0x00000200)
 917 #define FILE_RANDOM_ACCESS_LE           cpu_to_le32(0x00000800)
 918 #define FILE_DELETE_ON_CLOSE_LE         cpu_to_le32(0x00001000)
 919 #define FILE_OPEN_BY_FILE_ID_LE         cpu_to_le32(0x00002000)
 920 #define FILE_OPEN_FOR_BACKUP_INTENT_LE  cpu_to_le32(0x00004000)
 921 #define FILE_NO_COMPRESSION_LE          cpu_to_le32(0x00008000)
 922 #define FILE_OPEN_REPARSE_POINT_LE      cpu_to_le32(0x00200000)
 923 #define FILE_OPEN_NO_RECALL_LE          cpu_to_le32(0x00400000)
 924 #define CREATE_OPTIONS_MASK_LE          cpu_to_le32(0x00FFFFFF)
 925
 926 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
 927                         | FILE_READ_ATTRIBUTES_LE)
 928 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
 929                         | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
 930 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
 931
 932 /* Create Context Values */
 933 #define SMB2_CREATE_EA_BUFFER                   "ExtA" /* extended attributes */
 934 #define SMB2_CREATE_SD_BUFFER                   "SecD" /* security descriptor */
 935 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST      "DHnQ"
 936 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT    "DHnC"
 937 #define SMB2_CREATE_ALLOCATION_SIZE             "AISi"
 938 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
 939 #define SMB2_CREATE_TIMEWARP_REQUEST            "TWrp"
 940 #define SMB2_CREATE_QUERY_ON_DISK_ID            "QFid"
 941 #define SMB2_CREATE_REQUEST_LEASE               "RqLs"
 942 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2   "DH2Q"
 943 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 "DH2C"
 944 #define SMB2_CREATE_TAG_POSIX          "\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
 945
 946 /* Flag (SMB3 open response) values */
 947 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
 948
 949 struct create_context {
 950         __le32 Next;
 951         __le16 NameOffset;
 952         __le16 NameLength;
 953         __le16 Reserved;
 954         __le16 DataOffset;
 955         __le32 DataLength;
 956         __u8 Buffer[];
 957 } __packed;
 958
 959 struct smb2_create_req {
 960         struct smb2_hdr hdr;
 961         __le16 StructureSize;   /* Must be 57 */
 962         __u8   SecurityFlags;
 963         __u8   RequestedOplockLevel;
 964         __le32 ImpersonationLevel;
 965         __le64 SmbCreateFlags;
 966         __le64 Reserved;
 967         __le32 DesiredAccess;
 968         __le32 FileAttributes;
 969         __le32 ShareAccess;
 970         __le32 CreateDisposition;
 971         __le32 CreateOptions;
 972         __le16 NameOffset;
 973         __le16 NameLength;
 974         __le32 CreateContextsOffset;
 975         __le32 CreateContextsLength;
 976         __u8   Buffer[];
 977 } __packed;
 978
 979 struct smb2_create_rsp {
 980         struct smb2_hdr hdr;
 981         __le16 StructureSize;   /* Must be 89 */
 982         __u8   OplockLevel;
 983         __u8   Flags;  /* 0x01 if reparse point */
 984         __le32 CreateAction;
 985         __le64 CreationTime;
 986         __le64 LastAccessTime;
 987         __le64 LastWriteTime;
 988         __le64 ChangeTime;
 989         __le64 AllocationSize;
 990         __le64 EndofFile;
 991         __le32 FileAttributes;
 992         __le32 Reserved2;
 993         __u64  PersistentFileId;
 994         __u64  VolatileFileId;
 995         __le32 CreateContextsOffset;
 996         __le32 CreateContextsLength;
 997         __u8   Buffer[1];
 998 } __packed;
 999
1000 #define SMB2_LEASE_NONE_LE                      cpu_to_le32(0x00)
1001 #define SMB2_LEASE_READ_CACHING_LE              cpu_to_le32(0x01)
1002 #define SMB2_LEASE_HANDLE_CACHING_LE            cpu_to_le32(0x02)
1003 #define SMB2_LEASE_WRITE_CACHING_LE             cpu_to_le32(0x04)
1004
1005 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE    cpu_to_le32(0x02)
1006
1007 #define SMB2_LEASE_KEY_SIZE                     16
1008
1009 struct lease_context {
1010         __u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1011         __le32 LeaseState;
1012         __le32 LeaseFlags;
1013         __le64 LeaseDuration;
1014 } __packed;
1015
1016 struct lease_context_v2 {
1017         __u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1018         __le32 LeaseState;
1019         __le32 LeaseFlags;
1020         __le64 LeaseDuration;
1021         __u8 ParentLeaseKey[SMB2_LEASE_KEY_SIZE];
1022         __le16 Epoch;
1023         __le16 Reserved;
1024 } __packed;
1025
1026 struct create_lease {
1027         struct create_context ccontext;
1028         __u8   Name[8];
1029         struct lease_context lcontext;
1030 } __packed;
1031
1032 struct create_lease_v2 {
1033         struct create_context ccontext;
1034         __u8   Name[8];
1035         struct lease_context_v2 lcontext;
1036         __u8   Pad[4];
1037 } __packed;
1038
1039 /* Possible InfoType values */
1040 #define SMB2_O_INFO_FILE        0x01
1041 #define SMB2_O_INFO_FILESYSTEM  0x02
1042 #define SMB2_O_INFO_SECURITY    0x03
1043 #define SMB2_O_INFO_QUOTA       0x04
1044
1045 /* SMB2 Query Info see MS-SMB2 (2.2.37) or MS-DTYP */
1046
1047 /* Security info type additionalinfo flags. */
1048 #define OWNER_SECINFO   0x00000001
1049 #define GROUP_SECINFO   0x00000002
1050 #define DACL_SECINFO   0x00000004
1051 #define SACL_SECINFO   0x00000008
1052 #define LABEL_SECINFO   0x00000010
1053 #define ATTRIBUTE_SECINFO   0x00000020
1054 #define SCOPE_SECINFO   0x00000040
1055 #define BACKUP_SECINFO   0x00010000
1056 #define UNPROTECTED_SACL_SECINFO   0x10000000
1057 #define UNPROTECTED_DACL_SECINFO   0x20000000
1058 #define PROTECTED_SACL_SECINFO   0x40000000
1059 #define PROTECTED_DACL_SECINFO   0x80000000
1060
1061 /* Flags used for FileFullEAinfo */
1062 #define SL_RESTART_SCAN         0x00000001
1063 #define SL_RETURN_SINGLE_ENTRY  0x00000002
1064 #define SL_INDEX_SPECIFIED      0x00000004
1065
1066 struct smb2_query_info_req {
1067         struct smb2_hdr hdr;
1068         __le16 StructureSize; /* Must be 41 */
1069         __u8   InfoType;
1070         __u8   FileInfoClass;
1071         __le32 OutputBufferLength;
1072         __le16 InputBufferOffset;
1073         __u16  Reserved;
1074         __le32 InputBufferLength;
1075         __le32 AdditionalInformation;
1076         __le32 Flags;
1077         __u64  PersistentFileId;
1078         __u64  VolatileFileId;
1079         __u8   Buffer[1];
1080 } __packed;
1081
1082 struct smb2_query_info_rsp {
1083         struct smb2_hdr hdr;
1084         __le16 StructureSize; /* Must be 9 */
1085         __le16 OutputBufferOffset;
1086         __le32 OutputBufferLength;
1087         __u8   Buffer[1];
1088 } __packed;
1089
1090 #endif                          /* _COMMON_SMB2PDU_H */