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 SMB3_AES_CCM_NONCE 11 119 #define SMB3_AES_GCM_NONCE 12 120 121 /* Transform flags (for 3.0 dialect this flag indicates CCM */ 122 #define TRANSFORM_FLAG_ENCRYPTED 0x0001 123 struct smb2_transform_hdr { 124 __le32 ProtocolId; /* 0xFD 'S' 'M' 'B' */ 125 __u8 Signature[16]; 126 __u8 Nonce[16]; 127 __le32 OriginalMessageSize; 128 __u16 Reserved1; 129 __le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */ 130 __le64 SessionId; 131 } __packed; 132 133 134 /* See MS-SMB2 2.2.42 */ 135 struct smb2_compression_transform_hdr_unchained { 136 __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */ 137 __le32 OriginalCompressedSegmentSize; 138 __le16 CompressionAlgorithm; 139 __le16 Flags; 140 __le16 Length; /* if chained it is length, else offset */ 141 } __packed; 142 143 /* See MS-SMB2 2.2.42.1 */ 144 #define SMB2_COMPRESSION_FLAG_NONE 0x0000 145 #define SMB2_COMPRESSION_FLAG_CHAINED 0x0001 146 147 struct compression_payload_header { 148 __le16 CompressionAlgorithm; 149 __le16 Flags; 150 __le32 Length; /* length of compressed playload including field below if present */ 151 /* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */ 152 } __packed; 153 154 /* See MS-SMB2 2.2.42.2 */ 155 struct smb2_compression_transform_hdr_chained { 156 __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */ 157 __le32 OriginalCompressedSegmentSize; 158 /* struct compression_payload_header[] */ 159 } __packed; 160 161 /* See MS-SMB2 2.2.42.2.2 */ 162 struct compression_pattern_payload_v1 { 163 __le16 Pattern; 164 __le16 Reserved1; 165 __le16 Reserved2; 166 __le32 Repetitions; 167 } __packed; 168 169 /* See MS-SMB2 section 2.2.9.2 */ 170 /* Context Types */ 171 #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000 172 #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001) 173 174 struct tree_connect_contexts { 175 __le16 ContextType; 176 __le16 DataLength; 177 __le32 Reserved; 178 __u8 Data[]; 179 } __packed; 180 181 /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */ 182 struct smb3_blob_data { 183 __le16 BlobSize; 184 __u8 BlobData[]; 185 } __packed; 186 187 /* Valid values for Attr */ 188 #define SE_GROUP_MANDATORY 0x00000001 189 #define SE_GROUP_ENABLED_BY_DEFAULT 0x00000002 190 #define SE_GROUP_ENABLED 0x00000004 191 #define SE_GROUP_OWNER 0x00000008 192 #define SE_GROUP_USE_FOR_DENY_ONLY 0x00000010 193 #define SE_GROUP_INTEGRITY 0x00000020 194 #define SE_GROUP_INTEGRITY_ENABLED 0x00000040 195 #define SE_GROUP_RESOURCE 0x20000000 196 #define SE_GROUP_LOGON_ID 0xC0000000 197 198 /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */ 199 200 struct sid_array_data { 201 __le16 SidAttrCount; 202 /* SidAttrList - array of sid_attr_data structs */ 203 } __packed; 204 205 struct luid_attr_data { 206 207 } __packed; 208 209 /* 210 * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5 211 * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA 212 */ 213 214 struct privilege_array_data { 215 __le16 PrivilegeCount; 216 /* array of privilege_data structs */ 217 } __packed; 218 219 struct remoted_identity_tcon_context { 220 __le16 TicketType; /* must be 0x0001 */ 221 __le16 TicketSize; /* total size of this struct */ 222 __le16 User; /* offset to SID_ATTR_DATA struct with user info */ 223 __le16 UserName; /* offset to null terminated Unicode username string */ 224 __le16 Domain; /* offset to null terminated Unicode domain name */ 225 __le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */ 226 __le16 RestrictedGroups; /* similar to above */ 227 __le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */ 228 __le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */ 229 __le16 Owner; /* offset to BLOB_DATA struct */ 230 __le16 DefaultDacl; /* offset to BLOB_DATA struct */ 231 __le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */ 232 __le16 UserClaims; /* offset to BLOB_DATA struct */ 233 __le16 DeviceClaims; /* offset to BLOB_DATA struct */ 234 __u8 TicketInfo[]; /* variable length buf - remoted identity data */ 235 } __packed; 236 237 struct smb2_tree_connect_req_extension { 238 __le32 TreeConnectContextOffset; 239 __le16 TreeConnectContextCount; 240 __u8 Reserved[10]; 241 __u8 PathName[]; /* variable sized array */ 242 /* followed by array of TreeConnectContexts */ 243 } __packed; 244 245 /* Flags/Reserved for SMB3.1.1 */ 246 #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001) 247 #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002) 248 #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004) 249 250 struct smb2_tree_connect_req { 251 struct smb2_hdr hdr; 252 __le16 StructureSize; /* Must be 9 */ 253 __le16 Flags; /* Flags in SMB3.1.1 */ 254 __le16 PathOffset; 255 __le16 PathLength; 256 __u8 Buffer[1]; /* variable length */ 257 } __packed; 258 259 /* Possible ShareType values */ 260 #define SMB2_SHARE_TYPE_DISK 0x01 261 #define SMB2_SHARE_TYPE_PIPE 0x02 262 #define SMB2_SHARE_TYPE_PRINT 0x03 263 264 /* 265 * Possible ShareFlags - exactly one and only one of the first 4 caching flags 266 * must be set (any of the remaining, SHI1005, flags may be set individually 267 * or in combination. 268 */ 269 #define SMB2_SHAREFLAG_MANUAL_CACHING 0x00000000 270 #define SMB2_SHAREFLAG_AUTO_CACHING 0x00000010 271 #define SMB2_SHAREFLAG_VDO_CACHING 0x00000020 272 #define SMB2_SHAREFLAG_NO_CACHING 0x00000030 273 #define SHI1005_FLAGS_DFS 0x00000001 274 #define SHI1005_FLAGS_DFS_ROOT 0x00000002 275 #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS 0x00000100 276 #define SHI1005_FLAGS_FORCE_SHARED_DELETE 0x00000200 277 #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING 0x00000400 278 #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM 0x00000800 279 #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK 0x00001000 280 #define SHI1005_FLAGS_ENABLE_HASH_V1 0x00002000 281 #define SHI1005_FLAGS_ENABLE_HASH_V2 0x00004000 282 #define SHI1005_FLAGS_ENCRYPT_DATA 0x00008000 283 #define SMB2_SHAREFLAG_IDENTITY_REMOTING 0x00040000 /* 3.1.1 */ 284 #define SMB2_SHAREFLAG_COMPRESS_DATA 0x00100000 /* 3.1.1 */ 285 #define SHI1005_FLAGS_ALL 0x0014FF33 286 287 /* Possible share capabilities */ 288 #define SMB2_SHARE_CAP_DFS cpu_to_le32(0x00000008) /* all dialects */ 289 #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */ 290 #define SMB2_SHARE_CAP_SCALEOUT cpu_to_le32(0x00000020) /* 3.0 */ 291 #define SMB2_SHARE_CAP_CLUSTER cpu_to_le32(0x00000040) /* 3.0 */ 292 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */ 293 #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */ 294 295 struct smb2_tree_connect_rsp { 296 struct smb2_hdr hdr; 297 __le16 StructureSize; /* Must be 16 */ 298 __u8 ShareType; /* see below */ 299 __u8 Reserved; 300 __le32 ShareFlags; /* see below */ 301 __le32 Capabilities; /* see below */ 302 __le32 MaximalAccess; 303 } __packed; 304 305 struct smb2_tree_disconnect_req { 306 struct smb2_hdr hdr; 307 __le16 StructureSize; /* Must be 4 */ 308 __le16 Reserved; 309 } __packed; 310 311 struct smb2_tree_disconnect_rsp { 312 struct smb2_hdr hdr; 313 __le16 StructureSize; /* Must be 4 */ 314 __le16 Reserved; 315 } __packed; 316 317 318 /* 319 * SMB2_NEGOTIATE_PROTOCOL See MS-SMB2 section 2.2.3 320 */ 321 /* SecurityMode flags */ 322 #define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001 323 #define SMB2_NEGOTIATE_SIGNING_ENABLED_LE cpu_to_le16(0x0001) 324 #define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002 325 #define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002) 326 #define SMB2_SEC_MODE_FLAGS_ALL 0x0003 327 328 /* Capabilities flags */ 329 #define SMB2_GLOBAL_CAP_DFS 0x00000001 330 #define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */ 331 #define SMB2_GLOBAL_CAP_LARGE_MTU 0X00000004 /* Resp only New to SMB2.1 */ 332 #define SMB2_GLOBAL_CAP_MULTI_CHANNEL 0x00000008 /* New to SMB3 */ 333 #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */ 334 #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING 0x00000020 /* New to SMB3 */ 335 #define SMB2_GLOBAL_CAP_ENCRYPTION 0x00000040 /* New to SMB3 */ 336 /* Internal types */ 337 #define SMB2_NT_FIND 0x00100000 338 #define SMB2_LARGE_FILES 0x00200000 339 340 #define SMB2_CLIENT_GUID_SIZE 16 341 #define SMB2_CREATE_GUID_SIZE 16 342 343 /* Dialects */ 344 #define SMB10_PROT_ID 0x0000 /* local only, not sent on wire w/CIFS negprot */ 345 #define SMB20_PROT_ID 0x0202 346 #define SMB21_PROT_ID 0x0210 347 #define SMB2X_PROT_ID 0x02FF 348 #define SMB30_PROT_ID 0x0300 349 #define SMB302_PROT_ID 0x0302 350 #define SMB311_PROT_ID 0x0311 351 #define BAD_PROT_ID 0xFFFF 352 353 #define SMB311_SALT_SIZE 32 354 /* Hash Algorithm Types */ 355 #define SMB2_PREAUTH_INTEGRITY_SHA512 cpu_to_le16(0x0001) 356 #define SMB2_PREAUTH_HASH_SIZE 64 357 358 /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */ 359 #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES cpu_to_le16(1) 360 #define SMB2_ENCRYPTION_CAPABILITIES cpu_to_le16(2) 361 #define SMB2_COMPRESSION_CAPABILITIES cpu_to_le16(3) 362 #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID cpu_to_le16(5) 363 #define SMB2_TRANSPORT_CAPABILITIES cpu_to_le16(6) 364 #define SMB2_RDMA_TRANSFORM_CAPABILITIES cpu_to_le16(7) 365 #define SMB2_SIGNING_CAPABILITIES cpu_to_le16(8) 366 #define SMB2_POSIX_EXTENSIONS_AVAILABLE cpu_to_le16(0x100) 367 368 struct smb2_neg_context { 369 __le16 ContextType; 370 __le16 DataLength; 371 __le32 Reserved; 372 /* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */ 373 } __packed; 374 375 /* 376 * SaltLength that the server send can be zero, so the only three required 377 * fields (all __le16) end up six bytes total, so the minimum context data len 378 * in the response is six bytes which accounts for 379 * 380 * HashAlgorithmCount, SaltLength, and 1 HashAlgorithm. 381 */ 382 #define MIN_PREAUTH_CTXT_DATA_LEN 6 383 384 struct smb2_preauth_neg_context { 385 __le16 ContextType; /* 1 */ 386 __le16 DataLength; 387 __le32 Reserved; 388 __le16 HashAlgorithmCount; /* 1 */ 389 __le16 SaltLength; 390 __le16 HashAlgorithms; /* HashAlgorithms[0] since only one defined */ 391 __u8 Salt[SMB311_SALT_SIZE]; 392 } __packed; 393 394 /* Encryption Algorithms Ciphers */ 395 #define SMB2_ENCRYPTION_AES128_CCM cpu_to_le16(0x0001) 396 #define SMB2_ENCRYPTION_AES128_GCM cpu_to_le16(0x0002) 397 #define SMB2_ENCRYPTION_AES256_CCM cpu_to_le16(0x0003) 398 #define SMB2_ENCRYPTION_AES256_GCM cpu_to_le16(0x0004) 399 400 /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */ 401 #define MIN_ENCRYPT_CTXT_DATA_LEN 4 402 struct smb2_encryption_neg_context { 403 __le16 ContextType; /* 2 */ 404 __le16 DataLength; 405 __le32 Reserved; 406 /* CipherCount usally 2, but can be 3 when AES256-GCM enabled */ 407 __le16 CipherCount; /* AES128-GCM and AES128-CCM by default */ 408 __le16 Ciphers[]; 409 } __packed; 410 411 /* See MS-SMB2 2.2.3.1.3 */ 412 #define SMB3_COMPRESS_NONE cpu_to_le16(0x0000) 413 #define SMB3_COMPRESS_LZNT1 cpu_to_le16(0x0001) 414 #define SMB3_COMPRESS_LZ77 cpu_to_le16(0x0002) 415 #define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003) 416 /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */ 417 #define SMB3_COMPRESS_PATTERN cpu_to_le16(0x0004) /* Pattern_V1 */ 418 419 /* Compression Flags */ 420 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE cpu_to_le32(0x00000000) 421 #define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED cpu_to_le32(0x00000001) 422 423 struct smb2_compression_capabilities_context { 424 __le16 ContextType; /* 3 */ 425 __le16 DataLength; 426 __le32 Reserved; 427 __le16 CompressionAlgorithmCount; 428 __le16 Padding; 429 __le32 Flags; 430 __le16 CompressionAlgorithms[3]; 431 __u16 Pad; /* Some servers require pad to DataLen multiple of 8 */ 432 /* Check if pad needed */ 433 } __packed; 434 435 /* 436 * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4. 437 * Its struct simply contains NetName, an array of Unicode characters 438 */ 439 struct smb2_netname_neg_context { 440 __le16 ContextType; /* 5 */ 441 __le16 DataLength; 442 __le32 Reserved; 443 __le16 NetName[]; /* hostname of target converted to UCS-2 */ 444 } __packed; 445 446 /* 447 * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5 448 * and 2.2.4.1.5 449 */ 450 451 /* Flags */ 452 #define SMB2_ACCEPT_TRANSFORM_LEVEL_SECURITY 0x00000001 453 454 struct smb2_transport_capabilities_context { 455 __le16 ContextType; /* 6 */ 456 __le16 DataLength; 457 __u32 Reserved; 458 __le32 Flags; 459 __u32 Pad; 460 } __packed; 461 462 /* 463 * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6 464 * and 2.2.4.1.6 465 */ 466 467 /* RDMA Transform IDs */ 468 #define SMB2_RDMA_TRANSFORM_NONE 0x0000 469 #define SMB2_RDMA_TRANSFORM_ENCRYPTION 0x0001 470 #define SMB2_RDMA_TRANSFORM_SIGNING 0x0002 471 472 struct smb2_rdma_transform_capabilities_context { 473 __le16 ContextType; /* 7 */ 474 __le16 DataLength; 475 __u32 Reserved; 476 __le16 TransformCount; 477 __u16 Reserved1; 478 __u32 Reserved2; 479 __le16 RDMATransformIds[]; 480 } __packed; 481 482 /* 483 * For signing capabilities context see MS-SMB2 2.2.3.1.7 484 * and 2.2.4.1.7 485 */ 486 487 /* Signing algorithms */ 488 #define SIGNING_ALG_HMAC_SHA256 0 489 #define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0) 490 #define SIGNING_ALG_AES_CMAC 1 491 #define SIGNING_ALG_AES_CMAC_LE cpu_to_le16(1) 492 #define SIGNING_ALG_AES_GMAC 2 493 #define SIGNING_ALG_AES_GMAC_LE cpu_to_le16(2) 494 495 struct smb2_signing_capabilities { 496 __le16 ContextType; /* 8 */ 497 __le16 DataLength; 498 __le32 Reserved; 499 __le16 SigningAlgorithmCount; 500 __le16 SigningAlgorithms[]; 501 /* Followed by padding to 8 byte boundary (required by some servers) */ 502 } __packed; 503 504 #define POSIX_CTXT_DATA_LEN 16 505 struct smb2_posix_neg_context { 506 __le16 ContextType; /* 0x100 */ 507 __le16 DataLength; 508 __le32 Reserved; 509 __u8 Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */ 510 } __packed; 511 512 struct smb2_negotiate_req { 513 struct smb2_hdr hdr; 514 __le16 StructureSize; /* Must be 36 */ 515 __le16 DialectCount; 516 __le16 SecurityMode; 517 __le16 Reserved; /* MBZ */ 518 __le32 Capabilities; 519 __u8 ClientGUID[SMB2_CLIENT_GUID_SIZE]; 520 /* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */ 521 __le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */ 522 __le16 NegotiateContextCount; /* SMB3.1.1 only. MBZ earlier */ 523 __le16 Reserved2; 524 __le16 Dialects[]; 525 } __packed; 526 527 struct smb2_negotiate_rsp { 528 struct smb2_hdr hdr; 529 __le16 StructureSize; /* Must be 65 */ 530 __le16 SecurityMode; 531 __le16 DialectRevision; 532 __le16 NegotiateContextCount; /* Prior to SMB3.1.1 was Reserved & MBZ */ 533 __u8 ServerGUID[16]; 534 __le32 Capabilities; 535 __le32 MaxTransactSize; 536 __le32 MaxReadSize; 537 __le32 MaxWriteSize; 538 __le64 SystemTime; /* MBZ */ 539 __le64 ServerStartTime; 540 __le16 SecurityBufferOffset; 541 __le16 SecurityBufferLength; 542 __le32 NegotiateContextOffset; /* Pre:SMB3.1.1 was reserved/ignored */ 543 __u8 Buffer[1]; /* variable length GSS security buffer */ 544 } __packed; 545 546 547 /* 548 * SMB2_SESSION_SETUP See MS-SMB2 section 2.2.5 549 */ 550 /* Flags */ 551 #define SMB2_SESSION_REQ_FLAG_BINDING 0x01 552 #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA 0x04 553 554 struct smb2_sess_setup_req { 555 struct smb2_hdr hdr; 556 __le16 StructureSize; /* Must be 25 */ 557 __u8 Flags; 558 __u8 SecurityMode; 559 __le32 Capabilities; 560 __le32 Channel; 561 __le16 SecurityBufferOffset; 562 __le16 SecurityBufferLength; 563 __le64 PreviousSessionId; 564 __u8 Buffer[1]; /* variable length GSS security buffer */ 565 } __packed; 566 567 /* Currently defined SessionFlags */ 568 #define SMB2_SESSION_FLAG_IS_GUEST 0x0001 569 #define SMB2_SESSION_FLAG_IS_GUEST_LE cpu_to_le16(0x0001) 570 #define SMB2_SESSION_FLAG_IS_NULL 0x0002 571 #define SMB2_SESSION_FLAG_IS_NULL_LE cpu_to_le16(0x0002) 572 #define SMB2_SESSION_FLAG_ENCRYPT_DATA 0x0004 573 #define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004) 574 575 struct smb2_sess_setup_rsp { 576 struct smb2_hdr hdr; 577 __le16 StructureSize; /* Must be 9 */ 578 __le16 SessionFlags; 579 __le16 SecurityBufferOffset; 580 __le16 SecurityBufferLength; 581 __u8 Buffer[1]; /* variable length GSS security buffer */ 582 } __packed; 583 584 585 /* 586 * SMB2_LOGOFF See MS-SMB2 section 2.2.7 587 */ 588 struct smb2_logoff_req { 589 struct smb2_hdr hdr; 590 __le16 StructureSize; /* Must be 4 */ 591 __le16 Reserved; 592 } __packed; 593 594 struct smb2_logoff_rsp { 595 struct smb2_hdr hdr; 596 __le16 StructureSize; /* Must be 4 */ 597 __le16 Reserved; 598 } __packed; 599 600 601 /* 602 * SMB2_CLOSE See MS-SMB2 section 2.2.15 603 */ 604 /* Currently defined values for close flags */ 605 #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB cpu_to_le16(0x0001) 606 struct smb2_close_req { 607 struct smb2_hdr hdr; 608 __le16 StructureSize; /* Must be 24 */ 609 __le16 Flags; 610 __le32 Reserved; 611 __le64 PersistentFileId; /* opaque endianness */ 612 __le64 VolatileFileId; /* opaque endianness */ 613 } __packed; 614 615 /* 616 * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data) 617 */ 618 #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124 619 620 struct smb2_close_rsp { 621 struct smb2_hdr hdr; 622 __le16 StructureSize; /* 60 */ 623 __le16 Flags; 624 __le32 Reserved; 625 __le64 CreationTime; 626 __le64 LastAccessTime; 627 __le64 LastWriteTime; 628 __le64 ChangeTime; 629 __le64 AllocationSize; /* Beginning of FILE_STANDARD_INFO equivalent */ 630 __le64 EndOfFile; 631 __le32 Attributes; 632 } __packed; 633 634 635 /* 636 * SMB2_READ See MS-SMB2 section 2.2.19 637 */ 638 /* For read request Flags field below, following flag is defined for SMB3.02 */ 639 #define SMB2_READFLAG_READ_UNBUFFERED 0x01 640 #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */ 641 642 /* Channel field for read and write: exactly one of following flags can be set*/ 643 #define SMB2_CHANNEL_NONE cpu_to_le32(0x00000000) 644 #define SMB2_CHANNEL_RDMA_V1 cpu_to_le32(0x00000001) 645 #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002) 646 #define SMB2_CHANNEL_RDMA_TRANSFORM cpu_to_le32(0x00000003) 647 648 /* SMB2 read request without RFC1001 length at the beginning */ 649 struct smb2_read_req { 650 struct smb2_hdr hdr; 651 __le16 StructureSize; /* Must be 49 */ 652 __u8 Padding; /* offset from start of SMB2 header to place read */ 653 __u8 Flags; /* MBZ unless SMB3.02 or later */ 654 __le32 Length; 655 __le64 Offset; 656 __le64 PersistentFileId; 657 __le64 VolatileFileId; 658 __le32 MinimumCount; 659 __le32 Channel; /* MBZ except for SMB3 or later */ 660 __le32 RemainingBytes; 661 __le16 ReadChannelInfoOffset; 662 __le16 ReadChannelInfoLength; 663 __u8 Buffer[1]; 664 } __packed; 665 666 /* Read flags */ 667 #define SMB2_READFLAG_RESPONSE_NONE cpu_to_le32(0x00000000) 668 #define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM cpu_to_le32(0x00000001) 669 670 struct smb2_read_rsp { 671 struct smb2_hdr hdr; 672 __le16 StructureSize; /* Must be 17 */ 673 __u8 DataOffset; 674 __u8 Reserved; 675 __le32 DataLength; 676 __le32 DataRemaining; 677 __le32 Flags; 678 __u8 Buffer[1]; 679 } __packed; 680 681 682 /* 683 * SMB2_WRITE See MS-SMB2 section 2.2.21 684 */ 685 /* For write request Flags field below the following flags are defined: */ 686 #define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001 /* SMB2.1 or later */ 687 #define SMB2_WRITEFLAG_WRITE_UNBUFFERED 0x00000002 /* SMB3.02 or later */ 688 689 struct smb2_write_req { 690 struct smb2_hdr hdr; 691 __le16 StructureSize; /* Must be 49 */ 692 __le16 DataOffset; /* offset from start of SMB2 header to write data */ 693 __le32 Length; 694 __le64 Offset; 695 __le64 PersistentFileId; /* opaque endianness */ 696 __le64 VolatileFileId; /* opaque endianness */ 697 __le32 Channel; /* MBZ unless SMB3.02 or later */ 698 __le32 RemainingBytes; 699 __le16 WriteChannelInfoOffset; 700 __le16 WriteChannelInfoLength; 701 __le32 Flags; 702 __u8 Buffer[1]; 703 } __packed; 704 705 struct smb2_write_rsp { 706 struct smb2_hdr hdr; 707 __le16 StructureSize; /* Must be 17 */ 708 __u8 DataOffset; 709 __u8 Reserved; 710 __le32 DataLength; 711 __le32 DataRemaining; 712 __u32 Reserved2; 713 __u8 Buffer[1]; 714 } __packed; 715 716 717 /* 718 * SMB2_FLUSH See MS-SMB2 section 2.2.17 719 */ 720 struct smb2_flush_req { 721 struct smb2_hdr hdr; 722 __le16 StructureSize; /* Must be 24 */ 723 __le16 Reserved1; 724 __le32 Reserved2; 725 __le64 PersistentFileId; 726 __le64 VolatileFileId; 727 } __packed; 728 729 struct smb2_flush_rsp { 730 struct smb2_hdr hdr; 731 __le16 StructureSize; 732 __le16 Reserved; 733 } __packed; 734 735 736 /* 737 * SMB2_NOTIFY See MS-SMB2 section 2.2.35 738 */ 739 /* notify flags */ 740 #define SMB2_WATCH_TREE 0x0001 741 742 /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */ 743 #define FILE_NOTIFY_CHANGE_FILE_NAME 0x00000001 744 #define FILE_NOTIFY_CHANGE_DIR_NAME 0x00000002 745 #define FILE_NOTIFY_CHANGE_ATTRIBUTES 0x00000004 746 #define FILE_NOTIFY_CHANGE_SIZE 0x00000008 747 #define FILE_NOTIFY_CHANGE_LAST_WRITE 0x00000010 748 #define FILE_NOTIFY_CHANGE_LAST_ACCESS 0x00000020 749 #define FILE_NOTIFY_CHANGE_CREATION 0x00000040 750 #define FILE_NOTIFY_CHANGE_EA 0x00000080 751 #define FILE_NOTIFY_CHANGE_SECURITY 0x00000100 752 #define FILE_NOTIFY_CHANGE_STREAM_NAME 0x00000200 753 #define FILE_NOTIFY_CHANGE_STREAM_SIZE 0x00000400 754 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800 755 756 /* SMB2 Notify Action Flags */ 757 #define FILE_ACTION_ADDED 0x00000001 758 #define FILE_ACTION_REMOVED 0x00000002 759 #define FILE_ACTION_MODIFIED 0x00000003 760 #define FILE_ACTION_RENAMED_OLD_NAME 0x00000004 761 #define FILE_ACTION_RENAMED_NEW_NAME 0x00000005 762 #define FILE_ACTION_ADDED_STREAM 0x00000006 763 #define FILE_ACTION_REMOVED_STREAM 0x00000007 764 #define FILE_ACTION_MODIFIED_STREAM 0x00000008 765 #define FILE_ACTION_REMOVED_BY_DELETE 0x00000009 766 767 struct smb2_change_notify_req { 768 struct smb2_hdr hdr; 769 __le16 StructureSize; 770 __le16 Flags; 771 __le32 OutputBufferLength; 772 __le64 PersistentFileId; /* opaque endianness */ 773 __le64 VolatileFileId; /* opaque endianness */ 774 __le32 CompletionFilter; 775 __u32 Reserved; 776 } __packed; 777 778 struct smb2_change_notify_rsp { 779 struct smb2_hdr hdr; 780 __le16 StructureSize; /* Must be 9 */ 781 __le16 OutputBufferOffset; 782 __le32 OutputBufferLength; 783 __u8 Buffer[1]; /* array of file notify structs */ 784 } __packed; 785 786 787 /* 788 * SMB2_CREATE See MS-SMB2 section 2.2.13 789 */ 790 /* Oplock levels */ 791 #define SMB2_OPLOCK_LEVEL_NONE 0x00 792 #define SMB2_OPLOCK_LEVEL_II 0x01 793 #define SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08 794 #define SMB2_OPLOCK_LEVEL_BATCH 0x09 795 #define SMB2_OPLOCK_LEVEL_LEASE 0xFF 796 /* Non-spec internal type */ 797 #define SMB2_OPLOCK_LEVEL_NOCHANGE 0x99 798 799 /* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */ 800 #define IL_ANONYMOUS cpu_to_le32(0x00000000) 801 #define IL_IDENTIFICATION cpu_to_le32(0x00000001) 802 #define IL_IMPERSONATION cpu_to_le32(0x00000002) 803 #define IL_DELEGATE cpu_to_le32(0x00000003) 804 805 /* File Attrubutes */ 806 #define FILE_ATTRIBUTE_READONLY 0x00000001 807 #define FILE_ATTRIBUTE_HIDDEN 0x00000002 808 #define FILE_ATTRIBUTE_SYSTEM 0x00000004 809 #define FILE_ATTRIBUTE_DIRECTORY 0x00000010 810 #define FILE_ATTRIBUTE_ARCHIVE 0x00000020 811 #define FILE_ATTRIBUTE_NORMAL 0x00000080 812 #define FILE_ATTRIBUTE_TEMPORARY 0x00000100 813 #define FILE_ATTRIBUTE_SPARSE_FILE 0x00000200 814 #define FILE_ATTRIBUTE_REPARSE_POINT 0x00000400 815 #define FILE_ATTRIBUTE_COMPRESSED 0x00000800 816 #define FILE_ATTRIBUTE_OFFLINE 0x00001000 817 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000 818 #define FILE_ATTRIBUTE_ENCRYPTED 0x00004000 819 #define FILE_ATTRIBUTE_INTEGRITY_STREAM 0x00008000 820 #define FILE_ATTRIBUTE_NO_SCRUB_DATA 0x00020000 821 #define FILE_ATTRIBUTE__MASK 0x00007FB7 822 823 #define FILE_ATTRIBUTE_READONLY_LE cpu_to_le32(0x00000001) 824 #define FILE_ATTRIBUTE_HIDDEN_LE cpu_to_le32(0x00000002) 825 #define FILE_ATTRIBUTE_SYSTEM_LE cpu_to_le32(0x00000004) 826 #define FILE_ATTRIBUTE_DIRECTORY_LE cpu_to_le32(0x00000010) 827 #define FILE_ATTRIBUTE_ARCHIVE_LE cpu_to_le32(0x00000020) 828 #define FILE_ATTRIBUTE_NORMAL_LE cpu_to_le32(0x00000080) 829 #define FILE_ATTRIBUTE_TEMPORARY_LE cpu_to_le32(0x00000100) 830 #define FILE_ATTRIBUTE_SPARSE_FILE_LE cpu_to_le32(0x00000200) 831 #define FILE_ATTRIBUTE_REPARSE_POINT_LE cpu_to_le32(0x00000400) 832 #define FILE_ATTRIBUTE_COMPRESSED_LE cpu_to_le32(0x00000800) 833 #define FILE_ATTRIBUTE_OFFLINE_LE cpu_to_le32(0x00001000) 834 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED_LE cpu_to_le32(0x00002000) 835 #define FILE_ATTRIBUTE_ENCRYPTED_LE cpu_to_le32(0x00004000) 836 #define FILE_ATTRIBUTE_INTEGRITY_STREAM_LE cpu_to_le32(0x00008000) 837 #define FILE_ATTRIBUTE_NO_SCRUB_DATA_LE cpu_to_le32(0x00020000) 838 #define FILE_ATTRIBUTE_MASK_LE cpu_to_le32(0x00007FB7) 839 840 /* Desired Access Flags */ 841 #define FILE_READ_DATA_LE cpu_to_le32(0x00000001) 842 #define FILE_LIST_DIRECTORY_LE cpu_to_le32(0x00000001) 843 #define FILE_WRITE_DATA_LE cpu_to_le32(0x00000002) 844 #define FILE_APPEND_DATA_LE cpu_to_le32(0x00000004) 845 #define FILE_ADD_SUBDIRECTORY_LE cpu_to_le32(0x00000004) 846 #define FILE_READ_EA_LE cpu_to_le32(0x00000008) 847 #define FILE_WRITE_EA_LE cpu_to_le32(0x00000010) 848 #define FILE_EXECUTE_LE cpu_to_le32(0x00000020) 849 #define FILE_DELETE_CHILD_LE cpu_to_le32(0x00000040) 850 #define FILE_READ_ATTRIBUTES_LE cpu_to_le32(0x00000080) 851 #define FILE_WRITE_ATTRIBUTES_LE cpu_to_le32(0x00000100) 852 #define FILE_DELETE_LE cpu_to_le32(0x00010000) 853 #define FILE_READ_CONTROL_LE cpu_to_le32(0x00020000) 854 #define FILE_WRITE_DAC_LE cpu_to_le32(0x00040000) 855 #define FILE_WRITE_OWNER_LE cpu_to_le32(0x00080000) 856 #define FILE_SYNCHRONIZE_LE cpu_to_le32(0x00100000) 857 #define FILE_ACCESS_SYSTEM_SECURITY_LE cpu_to_le32(0x01000000) 858 #define FILE_MAXIMAL_ACCESS_LE cpu_to_le32(0x02000000) 859 #define FILE_GENERIC_ALL_LE cpu_to_le32(0x10000000) 860 #define FILE_GENERIC_EXECUTE_LE cpu_to_le32(0x20000000) 861 #define FILE_GENERIC_WRITE_LE cpu_to_le32(0x40000000) 862 #define FILE_GENERIC_READ_LE cpu_to_le32(0x80000000) 863 #define DESIRED_ACCESS_MASK cpu_to_le32(0xF21F01FF) 864 865 866 #define FILE_READ_DESIRED_ACCESS_LE (FILE_READ_DATA_LE | \ 867 FILE_READ_EA_LE | \ 868 FILE_GENERIC_READ_LE) 869 #define FILE_WRITE_DESIRE_ACCESS_LE (FILE_WRITE_DATA_LE | \ 870 FILE_APPEND_DATA_LE | \ 871 FILE_WRITE_EA_LE | \ 872 FILE_WRITE_ATTRIBUTES_LE | \ 873 FILE_GENERIC_WRITE_LE) 874 875 /* ShareAccess Flags */ 876 #define FILE_SHARE_READ_LE cpu_to_le32(0x00000001) 877 #define FILE_SHARE_WRITE_LE cpu_to_le32(0x00000002) 878 #define FILE_SHARE_DELETE_LE cpu_to_le32(0x00000004) 879 #define FILE_SHARE_ALL_LE cpu_to_le32(0x00000007) 880 881 /* CreateDisposition Flags */ 882 #define FILE_SUPERSEDE_LE cpu_to_le32(0x00000000) 883 #define FILE_OPEN_LE cpu_to_le32(0x00000001) 884 #define FILE_CREATE_LE cpu_to_le32(0x00000002) 885 #define FILE_OPEN_IF_LE cpu_to_le32(0x00000003) 886 #define FILE_OVERWRITE_LE cpu_to_le32(0x00000004) 887 #define FILE_OVERWRITE_IF_LE cpu_to_le32(0x00000005) 888 #define FILE_CREATE_MASK_LE cpu_to_le32(0x00000007) 889 890 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \ 891 | FILE_READ_ATTRIBUTES) 892 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \ 893 | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES) 894 #define FILE_EXEC_RIGHTS (FILE_EXECUTE) 895 896 /* CreateOptions Flags */ 897 #define FILE_DIRECTORY_FILE_LE cpu_to_le32(0x00000001) 898 /* same as #define CREATE_NOT_FILE_LE cpu_to_le32(0x00000001) */ 899 #define FILE_WRITE_THROUGH_LE cpu_to_le32(0x00000002) 900 #define FILE_SEQUENTIAL_ONLY_LE cpu_to_le32(0x00000004) 901 #define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008) 902 #define FILE_NON_DIRECTORY_FILE_LE cpu_to_le32(0x00000040) 903 #define FILE_COMPLETE_IF_OPLOCKED_LE cpu_to_le32(0x00000100) 904 #define FILE_NO_EA_KNOWLEDGE_LE cpu_to_le32(0x00000200) 905 #define FILE_RANDOM_ACCESS_LE cpu_to_le32(0x00000800) 906 #define FILE_DELETE_ON_CLOSE_LE cpu_to_le32(0x00001000) 907 #define FILE_OPEN_BY_FILE_ID_LE cpu_to_le32(0x00002000) 908 #define FILE_OPEN_FOR_BACKUP_INTENT_LE cpu_to_le32(0x00004000) 909 #define FILE_NO_COMPRESSION_LE cpu_to_le32(0x00008000) 910 #define FILE_OPEN_REPARSE_POINT_LE cpu_to_le32(0x00200000) 911 #define FILE_OPEN_NO_RECALL_LE cpu_to_le32(0x00400000) 912 #define CREATE_OPTIONS_MASK_LE cpu_to_le32(0x00FFFFFF) 913 914 #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \ 915 | FILE_READ_ATTRIBUTES_LE) 916 #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \ 917 | FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE) 918 #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE) 919 920 /* Create Context Values */ 921 #define SMB2_CREATE_EA_BUFFER "ExtA" /* extended attributes */ 922 #define SMB2_CREATE_SD_BUFFER "SecD" /* security descriptor */ 923 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST "DHnQ" 924 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT "DHnC" 925 #define SMB2_CREATE_ALLOCATION_SIZE "AISi" 926 #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc" 927 #define SMB2_CREATE_TIMEWARP_REQUEST "TWrp" 928 #define SMB2_CREATE_QUERY_ON_DISK_ID "QFid" 929 #define SMB2_CREATE_REQUEST_LEASE "RqLs" 930 #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2 "DH2Q" 931 #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 "DH2C" 932 #define SMB2_CREATE_TAG_POSIX "\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C" 933 934 /* Flag (SMB3 open response) values */ 935 #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01 936 937 struct create_context { 938 __le32 Next; 939 __le16 NameOffset; 940 __le16 NameLength; 941 __le16 Reserved; 942 __le16 DataOffset; 943 __le32 DataLength; 944 __u8 Buffer[]; 945 } __packed; 946 947 struct smb2_create_req { 948 struct smb2_hdr hdr; 949 __le16 StructureSize; /* Must be 57 */ 950 __u8 SecurityFlags; 951 __u8 RequestedOplockLevel; 952 __le32 ImpersonationLevel; 953 __le64 SmbCreateFlags; 954 __le64 Reserved; 955 __le32 DesiredAccess; 956 __le32 FileAttributes; 957 __le32 ShareAccess; 958 __le32 CreateDisposition; 959 __le32 CreateOptions; 960 __le16 NameOffset; 961 __le16 NameLength; 962 __le32 CreateContextsOffset; 963 __le32 CreateContextsLength; 964 __u8 Buffer[]; 965 } __packed; 966 967 struct smb2_create_rsp { 968 struct smb2_hdr hdr; 969 __le16 StructureSize; /* Must be 89 */ 970 __u8 OplockLevel; 971 __u8 Flags; /* 0x01 if reparse point */ 972 __le32 CreateAction; 973 __le64 CreationTime; 974 __le64 LastAccessTime; 975 __le64 LastWriteTime; 976 __le64 ChangeTime; 977 __le64 AllocationSize; 978 __le64 EndofFile; 979 __le32 FileAttributes; 980 __le32 Reserved2; 981 __le64 PersistentFileId; 982 __le64 VolatileFileId; 983 __le32 CreateContextsOffset; 984 __le32 CreateContextsLength; 985 __u8 Buffer[1]; 986 } __packed; 987 988 989 #endif /* _COMMON_SMB2PDU_H */ 990