1 /* SPDX-License-Identifier: LGPL-2.1 */ 2 /* 3 * 4 * Copyright (c) International Business Machines Corp., 2002,2009 5 * Author(s): Steve French (sfrench@us.ibm.com) 6 * 7 */ 8 9 #ifndef _CIFSPDU_H 10 #define _CIFSPDU_H 11 12 #include <net/sock.h> 13 #include <linux/unaligned.h> 14 #include "../common/smbfsctl.h" 15 16 #define CIFS_PROT 0 17 #define POSIX_PROT (CIFS_PROT+1) 18 #define BAD_PROT 0xFFFF 19 20 /* SMB command codes: 21 * Note some commands have minimal (wct=0,bcc=0), or uninteresting, responses 22 * (ie which include no useful data other than the SMB error code itself). 23 * This can allow us to avoid response buffer allocations and copy in some cases 24 */ 25 #define SMB_COM_CREATE_DIRECTORY 0x00 /* trivial response */ 26 #define SMB_COM_DELETE_DIRECTORY 0x01 /* trivial response */ 27 #define SMB_COM_CLOSE 0x04 /* triv req/rsp, timestamp ignored */ 28 #define SMB_COM_FLUSH 0x05 /* triv req/rsp */ 29 #define SMB_COM_DELETE 0x06 /* trivial response */ 30 #define SMB_COM_RENAME 0x07 /* trivial response */ 31 #define SMB_COM_QUERY_INFORMATION 0x08 /* aka getattr */ 32 #define SMB_COM_SETATTR 0x09 /* trivial response */ 33 #define SMB_COM_LOCKING_ANDX 0x24 /* trivial response */ 34 #define SMB_COM_COPY 0x29 /* trivial rsp, fail filename ignrd*/ 35 #define SMB_COM_ECHO 0x2B /* echo request */ 36 #define SMB_COM_OPEN_ANDX 0x2D /* Legacy open for old servers */ 37 #define SMB_COM_READ_ANDX 0x2E 38 #define SMB_COM_WRITE_ANDX 0x2F 39 #define SMB_COM_TRANSACTION2 0x32 40 #define SMB_COM_TRANSACTION2_SECONDARY 0x33 41 #define SMB_COM_FIND_CLOSE2 0x34 /* trivial response */ 42 #define SMB_COM_TREE_DISCONNECT 0x71 /* trivial response */ 43 #define SMB_COM_NEGOTIATE 0x72 44 #define SMB_COM_SESSION_SETUP_ANDX 0x73 45 #define SMB_COM_LOGOFF_ANDX 0x74 /* trivial response */ 46 #define SMB_COM_TREE_CONNECT_ANDX 0x75 47 #define SMB_COM_NT_TRANSACT 0xA0 48 #define SMB_COM_NT_TRANSACT_SECONDARY 0xA1 49 #define SMB_COM_NT_CREATE_ANDX 0xA2 50 #define SMB_COM_NT_CANCEL 0xA4 /* no response */ 51 #define SMB_COM_NT_RENAME 0xA5 /* trivial response */ 52 53 /* Transact2 subcommand codes */ 54 #define TRANS2_OPEN 0x00 55 #define TRANS2_FIND_FIRST 0x01 56 #define TRANS2_FIND_NEXT 0x02 57 #define TRANS2_QUERY_FS_INFORMATION 0x03 58 #define TRANS2_SET_FS_INFORMATION 0x04 59 #define TRANS2_QUERY_PATH_INFORMATION 0x05 60 #define TRANS2_SET_PATH_INFORMATION 0x06 61 #define TRANS2_QUERY_FILE_INFORMATION 0x07 62 #define TRANS2_SET_FILE_INFORMATION 0x08 63 #define TRANS2_GET_DFS_REFERRAL 0x10 64 #define TRANS2_REPORT_DFS_INCOSISTENCY 0x11 65 66 /* SMB Transact (Named Pipe) subcommand codes */ 67 #define TRANS_SET_NMPIPE_STATE 0x0001 68 #define TRANS_RAW_READ_NMPIPE 0x0011 69 #define TRANS_QUERY_NMPIPE_STATE 0x0021 70 #define TRANS_QUERY_NMPIPE_INFO 0x0022 71 #define TRANS_PEEK_NMPIPE 0x0023 72 #define TRANS_TRANSACT_NMPIPE 0x0026 73 #define TRANS_RAW_WRITE_NMPIPE 0x0031 74 #define TRANS_READ_NMPIPE 0x0036 75 #define TRANS_WRITE_NMPIPE 0x0037 76 #define TRANS_WAIT_NMPIPE 0x0053 77 #define TRANS_CALL_NMPIPE 0x0054 78 79 /* NT Transact subcommand codes */ 80 #define NT_TRANSACT_CREATE 0x01 81 #define NT_TRANSACT_IOCTL 0x02 82 #define NT_TRANSACT_SET_SECURITY_DESC 0x03 83 #define NT_TRANSACT_NOTIFY_CHANGE 0x04 84 #define NT_TRANSACT_RENAME 0x05 85 #define NT_TRANSACT_QUERY_SECURITY_DESC 0x06 86 #define NT_TRANSACT_GET_USER_QUOTA 0x07 87 #define NT_TRANSACT_SET_USER_QUOTA 0x08 88 89 #define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */ 90 /* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */ 91 /* among the requests (NTCreateX response is bigger with wct of 34) */ 92 #define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */ 93 #define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */ 94 95 /* internal cifs vfs structures */ 96 /***************************************************************** 97 * All constants go here 98 ***************************************************************** 99 */ 100 101 /* 102 * Starting value for maximum SMB size negotiation 103 */ 104 #define CIFS_MAX_MSGSIZE (4*4096) 105 106 /* 107 * Size of encrypted user password in bytes 108 */ 109 #define CIFS_ENCPWD_SIZE (16) 110 111 /* 112 * Size of the crypto key returned on the negotiate SMB in bytes 113 */ 114 #define CIFS_CRYPTO_KEY_SIZE (8) 115 116 /* 117 * Size of the ntlm client response 118 */ 119 #define CIFS_AUTH_RESP_SIZE (24) 120 121 /* 122 * Size of the session key (crypto key encrypted with the password 123 */ 124 #define CIFS_SESS_KEY_SIZE (16) 125 126 #define CIFS_SERVER_CHALLENGE_SIZE (8) 127 #define CIFS_HMAC_MD5_HASH_SIZE (16) 128 #define CIFS_CPHTXT_SIZE (16) 129 #define CIFS_NTHASH_SIZE (16) 130 131 /* 132 * Maximum user name length 133 */ 134 #define CIFS_UNLEN (20) 135 136 /* 137 * Flags on SMB open 138 */ 139 #define SMBOPEN_WRITE_THROUGH 0x4000 140 #define SMBOPEN_DENY_ALL 0x0010 141 #define SMBOPEN_DENY_WRITE 0x0020 142 #define SMBOPEN_DENY_READ 0x0030 143 #define SMBOPEN_DENY_NONE 0x0040 144 #define SMBOPEN_READ 0x0000 145 #define SMBOPEN_WRITE 0x0001 146 #define SMBOPEN_READWRITE 0x0002 147 #define SMBOPEN_EXECUTE 0x0003 148 149 #define SMBOPEN_OCREATE 0x0010 150 #define SMBOPEN_OTRUNC 0x0002 151 #define SMBOPEN_OAPPEND 0x0001 152 153 /* 154 * SMB flag definitions 155 */ 156 #define SMBFLG_EXTD_LOCK 0x01 /* server supports lock-read write-unlock smb */ 157 #define SMBFLG_RCV_POSTED 0x02 /* obsolete */ 158 #define SMBFLG_RSVD 0x04 159 #define SMBFLG_CASELESS 0x08 /* all pathnames treated as caseless (off 160 implies case sensitive file handling request) */ 161 #define SMBFLG_CANONICAL_PATH_FORMAT 0x10 /* obsolete */ 162 #define SMBFLG_OLD_OPLOCK 0x20 /* obsolete */ 163 #define SMBFLG_OLD_OPLOCK_NOTIFY 0x40 /* obsolete */ 164 #define SMBFLG_RESPONSE 0x80 /* this PDU is a response from server */ 165 166 /* 167 * SMB flag2 definitions 168 */ 169 #define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1) /* can send long (non-8.3) 170 path names in response */ 171 #define SMBFLG2_KNOWS_EAS cpu_to_le16(2) 172 #define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4) 173 #define SMBFLG2_COMPRESSED (8) 174 #define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10) 175 #define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40) 176 #define SMBFLG2_REPARSE_PATH (0x400) 177 #define SMBFLG2_EXT_SEC cpu_to_le16(0x800) 178 #define SMBFLG2_DFS cpu_to_le16(0x1000) 179 #define SMBFLG2_PAGING_IO cpu_to_le16(0x2000) 180 #define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000) 181 #define SMBFLG2_UNICODE cpu_to_le16(0x8000) 182 183 /* 184 * These are the file access permission bits defined in CIFS for the 185 * NTCreateAndX as well as the level 0x107 186 * TRANS2_QUERY_PATH_INFORMATION API. The level 0x107, SMB_QUERY_FILE_ALL_INFO 187 * responds with the AccessFlags. 188 * The AccessFlags specifies the access permissions a caller has to the 189 * file and can have any suitable combination of the following values: 190 */ 191 192 #define FILE_READ_DATA 0x00000001 /* Data can be read from the file */ 193 /* or directory child entries can */ 194 /* be listed together with the */ 195 /* associated child attributes */ 196 /* (so the FILE_READ_ATTRIBUTES on */ 197 /* the child entry is not needed) */ 198 #define FILE_WRITE_DATA 0x00000002 /* Data can be written to the file */ 199 /* or new file can be created in */ 200 /* the directory */ 201 #define FILE_APPEND_DATA 0x00000004 /* Data can be appended to the file */ 202 /* (for non-local files over SMB it */ 203 /* is same as FILE_WRITE_DATA) */ 204 /* or new subdirectory can be */ 205 /* created in the directory */ 206 #define FILE_READ_EA 0x00000008 /* Extended attributes associated */ 207 /* with the file can be read */ 208 #define FILE_WRITE_EA 0x00000010 /* Extended attributes associated */ 209 /* with the file can be written */ 210 #define FILE_EXECUTE 0x00000020 /*Data can be read into memory from */ 211 /* the file using system paging I/O */ 212 /* for executing the file / script */ 213 /* or right to traverse directory */ 214 /* (but by default all users have */ 215 /* directory bypass traverse */ 216 /* privilege and do not need this */ 217 /* permission on directories at all)*/ 218 #define FILE_DELETE_CHILD 0x00000040 /* Child entry can be deleted from */ 219 /* the directory (so the DELETE on */ 220 /* the child entry is not needed) */ 221 #define FILE_READ_ATTRIBUTES 0x00000080 /* Attributes associated with the */ 222 /* file or directory can be read */ 223 #define FILE_WRITE_ATTRIBUTES 0x00000100 /* Attributes associated with the */ 224 /* file or directory can be written */ 225 #define DELETE 0x00010000 /* The file or dir can be deleted */ 226 #define READ_CONTROL 0x00020000 /* The discretionary access control */ 227 /* list and ownership associated */ 228 /* with the file or dir can be read */ 229 #define WRITE_DAC 0x00040000 /* The discretionary access control */ 230 /* list associated with the file or */ 231 /* directory can be written */ 232 #define WRITE_OWNER 0x00080000 /* Ownership information associated */ 233 /* with the file/dir can be written */ 234 #define SYNCHRONIZE 0x00100000 /* The file handle can waited on to */ 235 /* synchronize with the completion */ 236 /* of an input/output request */ 237 #define SYSTEM_SECURITY 0x01000000 /* The system access control list */ 238 /* associated with the file or */ 239 /* directory can be read or written */ 240 /* (cannot be in DACL, can in SACL) */ 241 #define MAXIMUM_ALLOWED 0x02000000 /* Maximal subset of GENERIC_ALL */ 242 /* permissions which can be granted */ 243 /* (cannot be in DACL nor SACL) */ 244 #define GENERIC_ALL 0x10000000 /* Same as: GENERIC_EXECUTE | */ 245 /* GENERIC_WRITE | */ 246 /* GENERIC_READ | */ 247 /* FILE_DELETE_CHILD | */ 248 /* DELETE | */ 249 /* WRITE_DAC | */ 250 /* WRITE_OWNER */ 251 /* So GENERIC_ALL contains all bits */ 252 /* mentioned above except these two */ 253 /* SYSTEM_SECURITY MAXIMUM_ALLOWED */ 254 #define GENERIC_EXECUTE 0x20000000 /* Same as: FILE_EXECUTE | */ 255 /* FILE_READ_ATTRIBUTES | */ 256 /* READ_CONTROL | */ 257 /* SYNCHRONIZE */ 258 #define GENERIC_WRITE 0x40000000 /* Same as: FILE_WRITE_DATA | */ 259 /* FILE_APPEND_DATA | */ 260 /* FILE_WRITE_EA | */ 261 /* FILE_WRITE_ATTRIBUTES | */ 262 /* READ_CONTROL | */ 263 /* SYNCHRONIZE */ 264 #define GENERIC_READ 0x80000000 /* Same as: FILE_READ_DATA | */ 265 /* FILE_READ_EA | */ 266 /* FILE_READ_ATTRIBUTES | */ 267 /* READ_CONTROL | */ 268 /* SYNCHRONIZE */ 269 270 #define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES) 271 #define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \ 272 | FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES) 273 #define FILE_EXEC_RIGHTS (FILE_EXECUTE) 274 275 #define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \ 276 | FILE_READ_ATTRIBUTES \ 277 | FILE_WRITE_ATTRIBUTES \ 278 | DELETE | READ_CONTROL | WRITE_DAC \ 279 | WRITE_OWNER | SYNCHRONIZE) 280 #define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \ 281 | FILE_READ_EA | FILE_WRITE_EA \ 282 | FILE_READ_ATTRIBUTES \ 283 | FILE_WRITE_ATTRIBUTES \ 284 | DELETE | READ_CONTROL | WRITE_DAC \ 285 | WRITE_OWNER | SYNCHRONIZE) 286 #define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \ 287 | FILE_READ_ATTRIBUTES \ 288 | FILE_WRITE_ATTRIBUTES \ 289 | DELETE | READ_CONTROL | WRITE_DAC \ 290 | WRITE_OWNER | SYNCHRONIZE) 291 292 #define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \ 293 | READ_CONTROL | SYNCHRONIZE) 294 295 296 /* 297 * Invalid readdir handle 298 */ 299 #define CIFS_NO_HANDLE 0xFFFF 300 301 #define NO_CHANGE_64 0xFFFFFFFFFFFFFFFFULL 302 303 /* IPC$ in ASCII */ 304 #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24" 305 306 /* IPC$ in Unicode */ 307 #define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00" 308 309 /* Unicode Null terminate 2 bytes of 0 */ 310 #define UNICODE_NULL "\x00\x00" 311 #define ASCII_NULL 0x00 312 313 /* 314 * Server type values (returned on EnumServer API 315 */ 316 #define CIFS_SV_TYPE_DC 0x00000008 317 #define CIFS_SV_TYPE_BACKDC 0x00000010 318 319 /* 320 * Alias type flags (From EnumAlias API call 321 */ 322 #define CIFS_ALIAS_TYPE_FILE 0x0001 323 #define CIFS_SHARE_TYPE_FILE 0x0000 324 325 /* 326 * File Attribute flags 327 */ 328 #define ATTR_READONLY 0x0001 329 #define ATTR_HIDDEN 0x0002 330 #define ATTR_SYSTEM 0x0004 331 #define ATTR_VOLUME 0x0008 332 #define ATTR_DIRECTORY 0x0010 333 #define ATTR_ARCHIVE 0x0020 334 #define ATTR_DEVICE 0x0040 335 #define ATTR_NORMAL 0x0080 336 #define ATTR_TEMPORARY 0x0100 337 #define ATTR_SPARSE 0x0200 338 #define ATTR_REPARSE 0x0400 339 #define ATTR_COMPRESSED 0x0800 340 #define ATTR_OFFLINE 0x1000 /* ie file not immediately available - 341 on offline storage */ 342 #define ATTR_NOT_CONTENT_INDEXED 0x2000 343 #define ATTR_ENCRYPTED 0x4000 344 #define ATTR_POSIX_SEMANTICS 0x01000000 345 #define ATTR_BACKUP_SEMANTICS 0x02000000 346 #define ATTR_DELETE_ON_CLOSE 0x04000000 347 #define ATTR_SEQUENTIAL_SCAN 0x08000000 348 #define ATTR_RANDOM_ACCESS 0x10000000 349 #define ATTR_NO_BUFFERING 0x20000000 350 #define ATTR_WRITE_THROUGH 0x80000000 351 352 /* ShareAccess flags */ 353 #define FILE_NO_SHARE 0x00000000 354 #define FILE_SHARE_READ 0x00000001 355 #define FILE_SHARE_WRITE 0x00000002 356 #define FILE_SHARE_DELETE 0x00000004 357 #define FILE_SHARE_ALL 0x00000007 358 359 /* CreateDisposition flags, similar to CreateAction as well */ 360 #define FILE_SUPERSEDE 0x00000000 361 #define FILE_OPEN 0x00000001 362 #define FILE_CREATE 0x00000002 363 #define FILE_OPEN_IF 0x00000003 364 #define FILE_OVERWRITE 0x00000004 365 #define FILE_OVERWRITE_IF 0x00000005 366 367 /* CreateOptions */ 368 #define CREATE_NOT_FILE 0x00000001 /* if set must not be file */ 369 #define CREATE_WRITE_THROUGH 0x00000002 370 #define CREATE_SEQUENTIAL 0x00000004 371 #define CREATE_NO_BUFFER 0x00000008 /* should not buffer on srv */ 372 #define CREATE_SYNC_ALERT 0x00000010 /* MBZ */ 373 #define CREATE_ASYNC_ALERT 0x00000020 /* MBZ */ 374 #define CREATE_NOT_DIR 0x00000040 /* if set must not be directory */ 375 #define CREATE_TREE_CONNECTION 0x00000080 /* should be zero */ 376 #define CREATE_COMPLETE_IF_OPLK 0x00000100 /* should be zero */ 377 #define CREATE_NO_EA_KNOWLEDGE 0x00000200 378 #define CREATE_EIGHT_DOT_THREE 0x00000400 /* doc says this is obsolete 379 "open for recovery" flag should 380 be zero in any case */ 381 #define CREATE_OPEN_FOR_RECOVERY 0x00000400 382 #define CREATE_RANDOM_ACCESS 0x00000800 383 #define CREATE_DELETE_ON_CLOSE 0x00001000 384 #define CREATE_OPEN_BY_ID 0x00002000 385 #define CREATE_OPEN_BACKUP_INTENT 0x00004000 386 #define CREATE_NO_COMPRESSION 0x00008000 387 #define CREATE_RESERVE_OPFILTER 0x00100000 /* should be zero */ 388 #define OPEN_REPARSE_POINT 0x00200000 389 #define OPEN_NO_RECALL 0x00400000 390 #define OPEN_FREE_SPACE_QUERY 0x00800000 /* should be zero */ 391 #define CREATE_OPTIONS_MASK 0x007FFFFF 392 #define CREATE_OPTION_READONLY 0x10000000 393 #define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */ 394 395 /* ImpersonationLevel flags */ 396 #define SECURITY_ANONYMOUS 0 397 #define SECURITY_IDENTIFICATION 1 398 #define SECURITY_IMPERSONATION 2 399 #define SECURITY_DELEGATION 3 400 401 /* SecurityFlags */ 402 #define SECURITY_CONTEXT_TRACKING 0x01 403 #define SECURITY_EFFECTIVE_ONLY 0x02 404 405 /* 406 * Default PID value, used in all SMBs where the PID is not important 407 */ 408 #define CIFS_DFT_PID 0x1234 409 410 /* 411 * We use the same routine for Copy and Move SMBs. This flag is used to 412 * distinguish 413 */ 414 #define CIFS_COPY_OP 1 415 #define CIFS_RENAME_OP 2 416 417 #define GETU16(var) (*((__u16 *)var)) /* BB check for endian issues */ 418 #define GETU32(var) (*((__u32 *)var)) /* BB check for endian issues */ 419 420 struct smb_hdr { 421 __be32 smb_buf_length; /* BB length is only two (rarely three) bytes, 422 with one or two byte "type" preceding it that will be 423 zero - we could mask the type byte off */ 424 __u8 Protocol[4]; 425 __u8 Command; 426 union { 427 struct { 428 __u8 ErrorClass; 429 __u8 Reserved; 430 __le16 Error; 431 } __attribute__((packed)) DosError; 432 __le32 CifsError; 433 } __attribute__((packed)) Status; 434 __u8 Flags; 435 __le16 Flags2; /* note: le */ 436 __le16 PidHigh; 437 union { 438 struct { 439 __le32 SequenceNumber; /* le */ 440 __u32 Reserved; /* zero */ 441 } __attribute__((packed)) Sequence; 442 __u8 SecuritySignature[8]; /* le */ 443 } __attribute__((packed)) Signature; 444 __u8 pad[2]; 445 __u16 Tid; 446 __le16 Pid; 447 __u16 Uid; 448 __le16 Mid; 449 __u8 WordCount; 450 } __attribute__((packed)); 451 452 /* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */ 453 static inline void * 454 BCC(struct smb_hdr *smb) 455 { 456 return (void *)smb + sizeof(*smb) + 2 * smb->WordCount; 457 } 458 459 /* given a pointer to an smb_hdr retrieve the pointer to the byte area */ 460 #define pByteArea(smb_var) (BCC(smb_var) + 2) 461 462 /* get the unconverted ByteCount for a SMB packet and return it */ 463 static inline __u16 464 get_bcc(struct smb_hdr *hdr) 465 { 466 __le16 *bc_ptr = (__le16 *)BCC(hdr); 467 468 return get_unaligned_le16(bc_ptr); 469 } 470 471 /* set the ByteCount for a SMB packet in little-endian */ 472 static inline void 473 put_bcc(__u16 count, struct smb_hdr *hdr) 474 { 475 __le16 *bc_ptr = (__le16 *)BCC(hdr); 476 477 put_unaligned_le16(count, bc_ptr); 478 } 479 480 /* 481 * Computer Name Length (since Netbios name was length 16 with last byte 0x20) 482 * No longer as important, now that TCP names are more commonly used to 483 * resolve hosts. 484 */ 485 #define CNLEN 15 486 487 /* 488 * Share Name Length (SNLEN) 489 * Note: This length was limited by the SMB used to get 490 * the Share info. NetShareEnum only returned 13 491 * chars, including the null termination. 492 * This was removed because it no longer is limiting. 493 */ 494 495 /* 496 * Comment Length 497 */ 498 #define MAXCOMMENTLEN 40 499 500 /* 501 * The OS/2 maximum path name 502 */ 503 #define MAX_PATHCONF 256 504 505 /* 506 * SMB frame definitions (following must be packed structs) 507 * See the SNIA CIFS Specification for details. 508 * 509 * The Naming convention is the lower case version of the 510 * smb command code name for the struct and this is typedef to the 511 * uppercase version of the same name with the prefix SMB_ removed 512 * for brevity. Although typedefs are not commonly used for 513 * structure definitions in the Linux kernel, their use in the 514 * CIFS standards document, which this code is based on, may 515 * make this one of the cases where typedefs for structures make 516 * sense to improve readability for readers of the standards doc. 517 * Typedefs can always be removed later if they are too distracting 518 * and they are only used for the CIFSs PDUs themselves, not 519 * internal cifs vfs structures 520 * 521 */ 522 523 typedef struct negotiate_req { 524 struct smb_hdr hdr; /* wct = 0 */ 525 __le16 ByteCount; 526 unsigned char DialectsArray[]; 527 } __attribute__((packed)) NEGOTIATE_REQ; 528 529 #define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */ 530 531 #define READ_RAW_ENABLE 1 532 #define WRITE_RAW_ENABLE 2 533 #define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE) 534 #define SMB1_CLIENT_GUID_SIZE (16) 535 typedef struct negotiate_rsp { 536 struct smb_hdr hdr; /* wct = 17 */ 537 __le16 DialectIndex; /* 0xFFFF = no dialect acceptable */ 538 __u8 SecurityMode; 539 __le16 MaxMpxCount; 540 __le16 MaxNumberVcs; 541 __le32 MaxBufferSize; 542 __le32 MaxRawSize; 543 __le32 SessionKey; 544 __le32 Capabilities; /* see below */ 545 __le32 SystemTimeLow; 546 __le32 SystemTimeHigh; 547 __le16 ServerTimeZone; 548 __u8 EncryptionKeyLength; 549 __u16 ByteCount; 550 union { 551 /* cap extended security off */ 552 DECLARE_FLEX_ARRAY(unsigned char, EncryptionKey); 553 /* followed by Domain name - if extended security is off */ 554 /* followed by 16 bytes of server GUID */ 555 /* then security blob if cap_extended_security negotiated */ 556 struct { 557 unsigned char GUID[SMB1_CLIENT_GUID_SIZE]; 558 unsigned char SecurityBlob[]; 559 } __attribute__((packed)) extended_response; 560 } __attribute__((packed)) u; 561 } __attribute__((packed)) NEGOTIATE_RSP; 562 563 /* SecurityMode bits */ 564 #define SECMODE_USER 0x01 /* off indicates share level security */ 565 #define SECMODE_PW_ENCRYPT 0x02 566 #define SECMODE_SIGN_ENABLED 0x04 /* SMB security signatures enabled */ 567 #define SECMODE_SIGN_REQUIRED 0x08 /* SMB security signatures required */ 568 569 /* Negotiate response Capabilities */ 570 #define CAP_RAW_MODE 0x00000001 571 #define CAP_MPX_MODE 0x00000002 572 #define CAP_UNICODE 0x00000004 573 #define CAP_LARGE_FILES 0x00000008 574 #define CAP_NT_SMBS 0x00000010 /* implies CAP_NT_FIND */ 575 #define CAP_RPC_REMOTE_APIS 0x00000020 576 #define CAP_STATUS32 0x00000040 577 #define CAP_LEVEL_II_OPLOCKS 0x00000080 578 #define CAP_LOCK_AND_READ 0x00000100 579 #define CAP_NT_FIND 0x00000200 580 #define CAP_DFS 0x00001000 581 #define CAP_INFOLEVEL_PASSTHRU 0x00002000 582 #define CAP_LARGE_READ_X 0x00004000 583 #define CAP_LARGE_WRITE_X 0x00008000 584 #define CAP_LWIO 0x00010000 /* support fctl_srv_req_resume_key */ 585 #define CAP_UNIX 0x00800000 586 #define CAP_COMPRESSED_DATA 0x02000000 587 #define CAP_DYNAMIC_REAUTH 0x20000000 588 #define CAP_PERSISTENT_HANDLES 0x40000000 589 #define CAP_EXTENDED_SECURITY 0x80000000 590 591 typedef union smb_com_session_setup_andx { 592 struct { /* request format */ 593 struct smb_hdr hdr; /* wct = 12 */ 594 __u8 AndXCommand; 595 __u8 AndXReserved; 596 __le16 AndXOffset; 597 __le16 MaxBufferSize; 598 __le16 MaxMpxCount; 599 __le16 VcNumber; 600 __le32 SessionKey; 601 __le16 SecurityBlobLength; 602 __u32 Reserved; 603 __le32 Capabilities; /* see below */ 604 __le16 ByteCount; 605 unsigned char SecurityBlob[]; /* followed by */ 606 /* STRING NativeOS */ 607 /* STRING NativeLanMan */ 608 } __attribute__((packed)) req; /* NTLM request format (with 609 extended security */ 610 611 struct { /* request format */ 612 struct smb_hdr hdr; /* wct = 13 */ 613 __u8 AndXCommand; 614 __u8 AndXReserved; 615 __le16 AndXOffset; 616 __le16 MaxBufferSize; 617 __le16 MaxMpxCount; 618 __le16 VcNumber; 619 __le32 SessionKey; 620 __le16 CaseInsensitivePasswordLength; /* ASCII password len */ 621 __le16 CaseSensitivePasswordLength; /* Unicode password length*/ 622 __u32 Reserved; /* see below */ 623 __le32 Capabilities; 624 __le16 ByteCount; 625 unsigned char CaseInsensitivePassword[]; /* followed by: */ 626 /* unsigned char * CaseSensitivePassword; */ 627 /* STRING AccountName */ 628 /* STRING PrimaryDomain */ 629 /* STRING NativeOS */ 630 /* STRING NativeLanMan */ 631 } __attribute__((packed)) req_no_secext; /* NTLM request format (without 632 extended security */ 633 634 struct { /* default (NTLM) response format */ 635 struct smb_hdr hdr; /* wct = 4 */ 636 __u8 AndXCommand; 637 __u8 AndXReserved; 638 __le16 AndXOffset; 639 __le16 Action; /* see below */ 640 __le16 SecurityBlobLength; 641 __u16 ByteCount; 642 unsigned char SecurityBlob[]; /* followed by */ 643 /* unsigned char * NativeOS; */ 644 /* unsigned char * NativeLanMan; */ 645 /* unsigned char * PrimaryDomain; */ 646 } __attribute__((packed)) resp; /* NTLM response 647 (with or without extended sec) */ 648 649 struct { /* request format */ 650 struct smb_hdr hdr; /* wct = 10 */ 651 __u8 AndXCommand; 652 __u8 AndXReserved; 653 __le16 AndXOffset; 654 __le16 MaxBufferSize; 655 __le16 MaxMpxCount; 656 __le16 VcNumber; 657 __le32 SessionKey; 658 __le16 PasswordLength; 659 __u32 Reserved; /* encrypt key len and offset */ 660 __le16 ByteCount; 661 unsigned char AccountPassword[]; /* followed by */ 662 /* STRING AccountName */ 663 /* STRING PrimaryDomain */ 664 /* STRING NativeOS */ 665 /* STRING NativeLanMan */ 666 } __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */ 667 668 struct { /* default (NTLM) response format */ 669 struct smb_hdr hdr; /* wct = 3 */ 670 __u8 AndXCommand; 671 __u8 AndXReserved; 672 __le16 AndXOffset; 673 __le16 Action; /* see below */ 674 __u16 ByteCount; 675 unsigned char NativeOS[]; /* followed by */ 676 /* unsigned char * NativeLanMan; */ 677 /* unsigned char * PrimaryDomain; */ 678 } __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */ 679 } __attribute__((packed)) SESSION_SETUP_ANDX; 680 681 /* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */ 682 683 #define NTLMSSP_SERVER_TYPE 1 684 #define NTLMSSP_DOMAIN_TYPE 2 685 #define NTLMSSP_FQ_DOMAIN_TYPE 3 686 #define NTLMSSP_DNS_DOMAIN_TYPE 4 687 #define NTLMSSP_DNS_PARENT_TYPE 5 688 689 struct ntlmssp2_name { 690 __le16 type; 691 __le16 length; 692 __u8 data[]; 693 } __attribute__((packed)); 694 695 struct ntlmv2_resp { 696 union { 697 char ntlmv2_hash[CIFS_ENCPWD_SIZE]; 698 struct { 699 __u8 reserved[8]; 700 __u8 key[CIFS_SERVER_CHALLENGE_SIZE]; 701 } __attribute__((packed)) challenge; 702 } __attribute__((packed)); 703 __le32 blob_signature; 704 __u32 reserved; 705 __le64 time; 706 __u64 client_chal; /* random */ 707 __u32 reserved2; 708 /* array of name entries could follow ending in minimum 4 byte struct */ 709 } __attribute__((packed)); 710 711 712 #define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux" 713 714 /* Capabilities bits (for NTLM SessSetup request) */ 715 #define CAP_UNICODE 0x00000004 716 #define CAP_LARGE_FILES 0x00000008 717 #define CAP_NT_SMBS 0x00000010 718 #define CAP_STATUS32 0x00000040 719 #define CAP_LEVEL_II_OPLOCKS 0x00000080 720 #define CAP_NT_FIND 0x00000200 /* reserved should be zero 721 (because NT_SMBs implies the same thing?) */ 722 #define CAP_BULK_TRANSFER 0x20000000 723 #define CAP_EXTENDED_SECURITY 0x80000000 724 725 /* Action bits */ 726 #define GUEST_LOGIN 1 727 728 typedef struct smb_com_tconx_req { 729 struct smb_hdr hdr; /* wct = 4 */ 730 __u8 AndXCommand; 731 __u8 AndXReserved; 732 __le16 AndXOffset; 733 __le16 Flags; /* see below */ 734 __le16 PasswordLength; 735 __le16 ByteCount; 736 unsigned char Password[]; /* followed by */ 737 /* STRING Path *//* \\server\share name */ 738 /* STRING Service */ 739 } __attribute__((packed)) TCONX_REQ; 740 741 typedef struct smb_com_tconx_rsp { 742 struct smb_hdr hdr; /* wct = 3 , not extended response */ 743 __u8 AndXCommand; 744 __u8 AndXReserved; 745 __le16 AndXOffset; 746 __le16 OptionalSupport; /* see below */ 747 __u16 ByteCount; 748 unsigned char Service[]; /* always ASCII, not Unicode */ 749 /* STRING NativeFileSystem */ 750 } __attribute__((packed)) TCONX_RSP; 751 752 typedef struct smb_com_tconx_rsp_ext { 753 struct smb_hdr hdr; /* wct = 7, extended response */ 754 __u8 AndXCommand; 755 __u8 AndXReserved; 756 __le16 AndXOffset; 757 __le16 OptionalSupport; /* see below */ 758 __le32 MaximalShareAccessRights; 759 __le32 GuestMaximalShareAccessRights; 760 __u16 ByteCount; 761 unsigned char Service[]; /* always ASCII, not Unicode */ 762 /* STRING NativeFileSystem */ 763 } __attribute__((packed)) TCONX_RSP_EXT; 764 765 766 /* tree connect Flags */ 767 #define DISCONNECT_TID 0x0001 768 #define TCON_EXTENDED_SIGNATURES 0x0004 769 #define TCON_EXTENDED_SECINFO 0x0008 770 771 /* OptionalSupport bits */ 772 #define SMB_SUPPORT_SEARCH_BITS 0x0001 /* "must have" directory search bits 773 (exclusive searches supported) */ 774 #define SMB_SHARE_IS_IN_DFS 0x0002 775 #define SMB_CSC_MASK 0x000C 776 /* CSC flags defined as follows */ 777 #define SMB_CSC_CACHE_MANUAL_REINT 0x0000 778 #define SMB_CSC_CACHE_AUTO_REINT 0x0004 779 #define SMB_CSC_CACHE_VDO 0x0008 780 #define SMB_CSC_NO_CACHING 0x000C 781 #define SMB_UNIQUE_FILE_NAME 0x0010 782 #define SMB_EXTENDED_SIGNATURES 0x0020 783 784 /* services 785 * 786 * A: ie disk 787 * LPT1: ie printer 788 * IPC ie named pipe 789 * COMM 790 * ????? ie any type 791 * 792 */ 793 794 typedef struct smb_com_echo_req { 795 struct smb_hdr hdr; 796 __le16 EchoCount; 797 __le16 ByteCount; 798 char Data[]; 799 } __attribute__((packed)) ECHO_REQ; 800 801 typedef struct smb_com_echo_rsp { 802 struct smb_hdr hdr; 803 __le16 SequenceNumber; 804 __le16 ByteCount; 805 char Data[]; 806 } __attribute__((packed)) ECHO_RSP; 807 808 typedef struct smb_com_logoff_andx_req { 809 struct smb_hdr hdr; /* wct = 2 */ 810 __u8 AndXCommand; 811 __u8 AndXReserved; 812 __u16 AndXOffset; 813 __u16 ByteCount; 814 } __attribute__((packed)) LOGOFF_ANDX_REQ; 815 816 typedef struct smb_com_logoff_andx_rsp { 817 struct smb_hdr hdr; /* wct = 2 */ 818 __u8 AndXCommand; 819 __u8 AndXReserved; 820 __u16 AndXOffset; 821 __u16 ByteCount; 822 } __attribute__((packed)) LOGOFF_ANDX_RSP; 823 824 typedef union smb_com_tree_disconnect { /* as an alternative can use flag on 825 tree_connect PDU to effect disconnect */ 826 /* tdis is probably simplest SMB PDU */ 827 struct { 828 struct smb_hdr hdr; /* wct = 0 */ 829 __u16 ByteCount; /* bcc = 0 */ 830 } __attribute__((packed)) req; 831 struct { 832 struct smb_hdr hdr; /* wct = 0 */ 833 __u16 ByteCount; /* bcc = 0 */ 834 } __attribute__((packed)) resp; 835 } __attribute__((packed)) TREE_DISCONNECT; 836 837 typedef struct smb_com_close_req { 838 struct smb_hdr hdr; /* wct = 3 */ 839 __u16 FileID; 840 __u32 LastWriteTime; /* should be zero or -1 */ 841 __u16 ByteCount; /* 0 */ 842 } __attribute__((packed)) CLOSE_REQ; 843 844 typedef struct smb_com_close_rsp { 845 struct smb_hdr hdr; /* wct = 0 */ 846 __u16 ByteCount; /* bct = 0 */ 847 } __attribute__((packed)) CLOSE_RSP; 848 849 typedef struct smb_com_flush_req { 850 struct smb_hdr hdr; /* wct = 1 */ 851 __u16 FileID; 852 __u16 ByteCount; /* 0 */ 853 } __attribute__((packed)) FLUSH_REQ; 854 855 typedef struct smb_com_findclose_req { 856 struct smb_hdr hdr; /* wct = 1 */ 857 __u16 FileID; 858 __u16 ByteCount; /* 0 */ 859 } __attribute__((packed)) FINDCLOSE_REQ; 860 861 /* OpenFlags */ 862 #define REQ_MORE_INFO 0x00000001 /* legacy (OPEN_AND_X) only */ 863 #define REQ_OPLOCK 0x00000002 864 #define REQ_BATCHOPLOCK 0x00000004 865 #define REQ_OPENDIRONLY 0x00000008 866 #define REQ_EXTENDED_INFO 0x00000010 867 868 /* File type */ 869 #define DISK_TYPE 0x0000 870 #define BYTE_PIPE_TYPE 0x0001 871 #define MESSAGE_PIPE_TYPE 0x0002 872 #define PRINTER_TYPE 0x0003 873 #define COMM_DEV_TYPE 0x0004 874 #define UNKNOWN_TYPE 0xFFFF 875 876 /* Device Type or File Status Flags */ 877 #define NO_EAS 0x0001 878 #define NO_SUBSTREAMS 0x0002 879 #define NO_REPARSETAG 0x0004 880 /* following flags can apply if pipe */ 881 #define ICOUNT_MASK 0x00FF 882 #define PIPE_READ_MODE 0x0100 883 #define NAMED_PIPE_TYPE 0x0400 884 #define PIPE_END_POINT 0x4000 885 #define BLOCKING_NAMED_PIPE 0x8000 886 887 typedef struct smb_com_open_req { /* also handles create */ 888 struct smb_hdr hdr; /* wct = 24 */ 889 __u8 AndXCommand; 890 __u8 AndXReserved; 891 __le16 AndXOffset; 892 __u8 Reserved; /* Must Be Zero */ 893 __le16 NameLength; 894 __le32 OpenFlags; 895 __u32 RootDirectoryFid; 896 __le32 DesiredAccess; 897 __le64 AllocationSize; 898 __le32 FileAttributes; 899 __le32 ShareAccess; 900 __le32 CreateDisposition; 901 __le32 CreateOptions; 902 __le32 ImpersonationLevel; 903 __u8 SecurityFlags; 904 __le16 ByteCount; 905 char fileName[]; 906 } __attribute__((packed)) OPEN_REQ; 907 908 /* open response: oplock levels */ 909 #define OPLOCK_NONE 0 910 #define OPLOCK_EXCLUSIVE 1 911 #define OPLOCK_BATCH 2 912 #define OPLOCK_READ 3 /* level 2 oplock */ 913 914 /* open response for CreateAction shifted left */ 915 #define CIFS_CREATE_ACTION 0x20000 /* file created */ 916 917 typedef struct smb_com_open_rsp { 918 struct smb_hdr hdr; /* wct = 34 BB */ 919 __u8 AndXCommand; 920 __u8 AndXReserved; 921 __le16 AndXOffset; 922 __u8 OplockLevel; 923 __u16 Fid; 924 __le32 CreateAction; 925 struct_group_attr(common_attributes, __packed, 926 __le64 CreationTime; 927 __le64 LastAccessTime; 928 __le64 LastWriteTime; 929 __le64 ChangeTime; 930 __le32 FileAttributes; 931 ); 932 __le64 AllocationSize; 933 __le64 EndOfFile; 934 __le16 FileType; 935 __le16 DeviceState; 936 __u8 DirectoryFlag; 937 __u16 ByteCount; /* bct = 0 */ 938 } __attribute__((packed)) OPEN_RSP; 939 940 typedef struct smb_com_open_rsp_ext { 941 struct smb_hdr hdr; /* wct = 42 but meaningless due to MS bug? */ 942 __u8 AndXCommand; 943 __u8 AndXReserved; 944 __le16 AndXOffset; 945 __u8 OplockLevel; 946 __u16 Fid; 947 __le32 CreateAction; 948 __le64 CreationTime; 949 __le64 LastAccessTime; 950 __le64 LastWriteTime; 951 __le64 ChangeTime; 952 __le32 FileAttributes; 953 __le64 AllocationSize; 954 __le64 EndOfFile; 955 __le16 FileType; 956 __le16 DeviceState; 957 __u8 DirectoryFlag; 958 __u8 VolumeGUID[16]; 959 __u64 FileId; /* note no endian conversion - is opaque UniqueID */ 960 __le32 MaximalAccessRights; 961 __le32 GuestMaximalAccessRights; 962 __u16 ByteCount; /* bct = 0 */ 963 } __attribute__((packed)) OPEN_RSP_EXT; 964 965 966 /* format of legacy open request */ 967 typedef struct smb_com_openx_req { 968 struct smb_hdr hdr; /* wct = 15 */ 969 __u8 AndXCommand; 970 __u8 AndXReserved; 971 __le16 AndXOffset; 972 __le16 OpenFlags; 973 __le16 Mode; 974 __le16 Sattr; /* search attributes */ 975 __le16 FileAttributes; /* dos attrs */ 976 __le32 CreateTime; /* os2 format */ 977 __le16 OpenFunction; 978 __le32 EndOfFile; 979 __le32 Timeout; 980 __le32 Reserved; 981 __le16 ByteCount; /* file name follows */ 982 char fileName[]; 983 } __attribute__((packed)) OPENX_REQ; 984 985 typedef struct smb_com_openx_rsp { 986 struct smb_hdr hdr; /* wct = 15 */ 987 __u8 AndXCommand; 988 __u8 AndXReserved; 989 __le16 AndXOffset; 990 __u16 Fid; 991 __le16 FileAttributes; 992 __le32 LastWriteTime; /* os2 format */ 993 __le32 EndOfFile; 994 __le16 Access; 995 __le16 FileType; 996 __le16 IPCState; 997 __le16 Action; 998 __u32 FileId; 999 __u16 Reserved; 1000 __u16 ByteCount; 1001 } __attribute__((packed)) OPENX_RSP; 1002 1003 /* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */ 1004 1005 /* Legacy write request for older servers */ 1006 typedef struct smb_com_writex_req { 1007 struct smb_hdr hdr; /* wct = 12 */ 1008 __u8 AndXCommand; 1009 __u8 AndXReserved; 1010 __le16 AndXOffset; 1011 __u16 Fid; 1012 __le32 OffsetLow; 1013 __u32 Reserved; /* Timeout */ 1014 __le16 WriteMode; /* 1 = write through */ 1015 __le16 Remaining; 1016 __le16 Reserved2; 1017 __le16 DataLengthLow; 1018 __le16 DataOffset; 1019 __le16 ByteCount; 1020 __u8 Pad; /* BB check for whether padded to DWORD 1021 boundary and optimum performance here */ 1022 char Data[]; 1023 } __attribute__((packed)) WRITEX_REQ; 1024 1025 typedef struct smb_com_write_req { 1026 struct smb_hdr hdr; /* wct = 14 */ 1027 __u8 AndXCommand; 1028 __u8 AndXReserved; 1029 __le16 AndXOffset; 1030 __u16 Fid; 1031 __le32 OffsetLow; 1032 __u32 Reserved; 1033 __le16 WriteMode; 1034 __le16 Remaining; 1035 __le16 DataLengthHigh; 1036 __le16 DataLengthLow; 1037 __le16 DataOffset; 1038 __le32 OffsetHigh; 1039 __le16 ByteCount; 1040 __u8 Pad; /* BB check for whether padded to DWORD 1041 boundary and optimum performance here */ 1042 char Data[]; 1043 } __attribute__((packed)) WRITE_REQ; 1044 1045 typedef struct smb_com_write_rsp { 1046 struct smb_hdr hdr; /* wct = 6 */ 1047 __u8 AndXCommand; 1048 __u8 AndXReserved; 1049 __le16 AndXOffset; 1050 __le16 Count; 1051 __le16 Remaining; 1052 __le16 CountHigh; 1053 __u16 Reserved; 1054 __u16 ByteCount; 1055 } __attribute__((packed)) WRITE_RSP; 1056 1057 /* legacy read request for older servers */ 1058 typedef struct smb_com_readx_req { 1059 struct smb_hdr hdr; /* wct = 10 */ 1060 __u8 AndXCommand; 1061 __u8 AndXReserved; 1062 __le16 AndXOffset; 1063 __u16 Fid; 1064 __le32 OffsetLow; 1065 __le16 MaxCount; 1066 __le16 MinCount; /* obsolete */ 1067 __le32 Reserved; 1068 __le16 Remaining; 1069 __le16 ByteCount; 1070 } __attribute__((packed)) READX_REQ; 1071 1072 typedef struct smb_com_read_req { 1073 struct smb_hdr hdr; /* wct = 12 */ 1074 __u8 AndXCommand; 1075 __u8 AndXReserved; 1076 __le16 AndXOffset; 1077 __u16 Fid; 1078 __le32 OffsetLow; 1079 __le16 MaxCount; 1080 __le16 MinCount; /* obsolete */ 1081 __le32 MaxCountHigh; 1082 __le16 Remaining; 1083 __le32 OffsetHigh; 1084 __le16 ByteCount; 1085 } __attribute__((packed)) READ_REQ; 1086 1087 typedef struct smb_com_read_rsp { 1088 struct smb_hdr hdr; /* wct = 12 */ 1089 __u8 AndXCommand; 1090 __u8 AndXReserved; 1091 __le16 AndXOffset; 1092 __le16 Remaining; 1093 __le16 DataCompactionMode; 1094 __le16 Reserved; 1095 __le16 DataLength; 1096 __le16 DataOffset; 1097 __le16 DataLengthHigh; 1098 __u64 Reserved2; 1099 __u16 ByteCount; 1100 /* read response data immediately follows */ 1101 } __attribute__((packed)) READ_RSP; 1102 1103 typedef struct locking_andx_range { 1104 __le16 Pid; 1105 __le16 Pad; 1106 __le32 OffsetHigh; 1107 __le32 OffsetLow; 1108 __le32 LengthHigh; 1109 __le32 LengthLow; 1110 } __attribute__((packed)) LOCKING_ANDX_RANGE; 1111 1112 #define LOCKING_ANDX_SHARED_LOCK 0x01 1113 #define LOCKING_ANDX_OPLOCK_RELEASE 0x02 1114 #define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04 1115 #define LOCKING_ANDX_CANCEL_LOCK 0x08 1116 #define LOCKING_ANDX_LARGE_FILES 0x10 /* always on for us */ 1117 1118 typedef struct smb_com_lock_req { 1119 struct smb_hdr hdr; /* wct = 8 */ 1120 __u8 AndXCommand; 1121 __u8 AndXReserved; 1122 __le16 AndXOffset; 1123 __u16 Fid; 1124 __u8 LockType; 1125 __u8 OplockLevel; 1126 __le32 Timeout; 1127 __le16 NumberOfUnlocks; 1128 __le16 NumberOfLocks; 1129 __le16 ByteCount; 1130 LOCKING_ANDX_RANGE Locks[]; 1131 } __attribute__((packed)) LOCK_REQ; 1132 1133 /* lock type */ 1134 #define CIFS_RDLCK 0 1135 #define CIFS_WRLCK 1 1136 #define CIFS_UNLCK 2 1137 typedef struct cifs_posix_lock { 1138 __le16 lock_type; /* 0 = Read, 1 = Write, 2 = Unlock */ 1139 __le16 lock_flags; /* 1 = Wait (only valid for setlock) */ 1140 __le32 pid; 1141 __le64 start; 1142 __le64 length; 1143 /* BB what about additional owner info to identify network client */ 1144 } __attribute__((packed)) CIFS_POSIX_LOCK; 1145 1146 typedef struct smb_com_lock_rsp { 1147 struct smb_hdr hdr; /* wct = 2 */ 1148 __u8 AndXCommand; 1149 __u8 AndXReserved; 1150 __le16 AndXOffset; 1151 __u16 ByteCount; 1152 } __attribute__((packed)) LOCK_RSP; 1153 1154 typedef struct smb_com_rename_req { 1155 struct smb_hdr hdr; /* wct = 1 */ 1156 __le16 SearchAttributes; /* target file attributes */ 1157 __le16 ByteCount; 1158 __u8 BufferFormat; /* 4 = ASCII or Unicode */ 1159 unsigned char OldFileName[]; 1160 /* followed by __u8 BufferFormat2 */ 1161 /* followed by NewFileName */ 1162 } __attribute__((packed)) RENAME_REQ; 1163 1164 /* copy request flags */ 1165 #define COPY_MUST_BE_FILE 0x0001 1166 #define COPY_MUST_BE_DIR 0x0002 1167 #define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */ 1168 #define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */ 1169 #define COPY_VERIFY_WRITES 0x0010 1170 #define COPY_TREE 0x0020 1171 1172 typedef struct smb_com_copy_req { 1173 struct smb_hdr hdr; /* wct = 3 */ 1174 __u16 Tid2; 1175 __le16 OpenFunction; 1176 __le16 Flags; 1177 __le16 ByteCount; 1178 __u8 BufferFormat; /* 4 = ASCII or Unicode */ 1179 unsigned char OldFileName[]; 1180 /* followed by __u8 BufferFormat2 */ 1181 /* followed by NewFileName string */ 1182 } __attribute__((packed)) COPY_REQ; 1183 1184 typedef struct smb_com_copy_rsp { 1185 struct smb_hdr hdr; /* wct = 1 */ 1186 __le16 CopyCount; /* number of files copied */ 1187 __u16 ByteCount; /* may be zero */ 1188 __u8 BufferFormat; /* 0x04 - only present if errored file follows */ 1189 unsigned char ErrorFileName[]; /* only present if error in copy */ 1190 } __attribute__((packed)) COPY_RSP; 1191 1192 #define CREATE_HARD_LINK 0x103 1193 #define MOVEFILE_COPY_ALLOWED 0x0002 1194 #define MOVEFILE_REPLACE_EXISTING 0x0001 1195 1196 typedef struct smb_com_nt_rename_req { /* A5 - also used for create hardlink */ 1197 struct smb_hdr hdr; /* wct = 4 */ 1198 __le16 SearchAttributes; /* target file attributes */ 1199 __le16 Flags; /* spec says Information Level */ 1200 __le32 ClusterCount; 1201 __le16 ByteCount; 1202 __u8 BufferFormat; /* 4 = ASCII or Unicode */ 1203 unsigned char OldFileName[]; 1204 /* followed by __u8 BufferFormat2 */ 1205 /* followed by NewFileName */ 1206 } __attribute__((packed)) NT_RENAME_REQ; 1207 1208 typedef struct smb_com_rename_rsp { 1209 struct smb_hdr hdr; /* wct = 0 */ 1210 __u16 ByteCount; /* bct = 0 */ 1211 } __attribute__((packed)) RENAME_RSP; 1212 1213 typedef struct smb_com_delete_file_req { 1214 struct smb_hdr hdr; /* wct = 1 */ 1215 __le16 SearchAttributes; 1216 __le16 ByteCount; 1217 __u8 BufferFormat; /* 4 = ASCII */ 1218 unsigned char fileName[]; 1219 } __attribute__((packed)) DELETE_FILE_REQ; 1220 1221 typedef struct smb_com_delete_file_rsp { 1222 struct smb_hdr hdr; /* wct = 0 */ 1223 __u16 ByteCount; /* bct = 0 */ 1224 } __attribute__((packed)) DELETE_FILE_RSP; 1225 1226 typedef struct smb_com_delete_directory_req { 1227 struct smb_hdr hdr; /* wct = 0 */ 1228 __le16 ByteCount; 1229 __u8 BufferFormat; /* 4 = ASCII */ 1230 unsigned char DirName[]; 1231 } __attribute__((packed)) DELETE_DIRECTORY_REQ; 1232 1233 typedef struct smb_com_delete_directory_rsp { 1234 struct smb_hdr hdr; /* wct = 0 */ 1235 __u16 ByteCount; /* bct = 0 */ 1236 } __attribute__((packed)) DELETE_DIRECTORY_RSP; 1237 1238 typedef struct smb_com_create_directory_req { 1239 struct smb_hdr hdr; /* wct = 0 */ 1240 __le16 ByteCount; 1241 __u8 BufferFormat; /* 4 = ASCII */ 1242 unsigned char DirName[]; 1243 } __attribute__((packed)) CREATE_DIRECTORY_REQ; 1244 1245 typedef struct smb_com_create_directory_rsp { 1246 struct smb_hdr hdr; /* wct = 0 */ 1247 __u16 ByteCount; /* bct = 0 */ 1248 } __attribute__((packed)) CREATE_DIRECTORY_RSP; 1249 1250 typedef struct smb_com_query_information_req { 1251 struct smb_hdr hdr; /* wct = 0 */ 1252 __le16 ByteCount; /* 1 + namelen + 1 */ 1253 __u8 BufferFormat; /* 4 = ASCII */ 1254 unsigned char FileName[]; 1255 } __attribute__((packed)) QUERY_INFORMATION_REQ; 1256 1257 typedef struct smb_com_query_information_rsp { 1258 struct smb_hdr hdr; /* wct = 10 */ 1259 __le16 attr; 1260 __le32 last_write_time; 1261 __le32 size; 1262 __u16 reserved[5]; 1263 __le16 ByteCount; /* bcc = 0 */ 1264 } __attribute__((packed)) QUERY_INFORMATION_RSP; 1265 1266 typedef struct smb_com_setattr_req { 1267 struct smb_hdr hdr; /* wct = 8 */ 1268 __le16 attr; 1269 __le32 last_write_time; 1270 __le16 reserved[5]; /* must be zero */ 1271 __le16 ByteCount; 1272 __u8 BufferFormat; /* 4 = ASCII */ 1273 unsigned char fileName[]; 1274 } __attribute__((packed)) SETATTR_REQ; 1275 1276 typedef struct smb_com_setattr_rsp { 1277 struct smb_hdr hdr; /* wct = 0 */ 1278 __u16 ByteCount; /* bct = 0 */ 1279 } __attribute__((packed)) SETATTR_RSP; 1280 1281 /* empty wct response to setattr */ 1282 1283 /*******************************************************/ 1284 /* NT Transact structure definitions follow */ 1285 /* Currently only ioctl, acl (get security descriptor) */ 1286 /* and notify are implemented */ 1287 /*******************************************************/ 1288 typedef struct smb_com_ntransact_req { 1289 struct smb_hdr hdr; /* wct >= 19 */ 1290 __u8 MaxSetupCount; 1291 __u16 Reserved; 1292 __le32 TotalParameterCount; 1293 __le32 TotalDataCount; 1294 __le32 MaxParameterCount; 1295 __le32 MaxDataCount; 1296 __le32 ParameterCount; 1297 __le32 ParameterOffset; 1298 __le32 DataCount; 1299 __le32 DataOffset; 1300 __u8 SetupCount; /* four setup words follow subcommand */ 1301 /* SNIA spec incorrectly included spurious pad here */ 1302 __le16 SubCommand; /* 2 = IOCTL/FSCTL */ 1303 /* SetupCount words follow then */ 1304 __le16 ByteCount; 1305 __u8 Pad[3]; 1306 __u8 Parms[]; 1307 } __attribute__((packed)) NTRANSACT_REQ; 1308 1309 typedef struct smb_com_ntransact_rsp { 1310 struct smb_hdr hdr; /* wct = 18 */ 1311 __u8 Reserved[3]; 1312 __le32 TotalParameterCount; 1313 __le32 TotalDataCount; 1314 __le32 ParameterCount; 1315 __le32 ParameterOffset; 1316 __le32 ParameterDisplacement; 1317 __le32 DataCount; 1318 __le32 DataOffset; 1319 __le32 DataDisplacement; 1320 __u8 SetupCount; /* 0 */ 1321 __u16 ByteCount; 1322 /* __u8 Pad[3]; */ 1323 /* parms and data follow */ 1324 } __attribute__((packed)) NTRANSACT_RSP; 1325 1326 /* See MS-SMB 2.2.7.2.1.1 */ 1327 struct srv_copychunk { 1328 __le64 SourceOffset; 1329 __le64 DestinationOffset; 1330 __le32 CopyLength; 1331 __u32 Reserved; 1332 } __packed; 1333 1334 typedef struct smb_com_transaction_ioctl_req { 1335 struct smb_hdr hdr; /* wct = 23 */ 1336 __u8 MaxSetupCount; 1337 __u16 Reserved; 1338 __le32 TotalParameterCount; 1339 __le32 TotalDataCount; 1340 __le32 MaxParameterCount; 1341 __le32 MaxDataCount; 1342 __le32 ParameterCount; 1343 __le32 ParameterOffset; 1344 __le32 DataCount; 1345 __le32 DataOffset; 1346 __u8 SetupCount; /* four setup words follow subcommand */ 1347 /* SNIA spec incorrectly included spurious pad here */ 1348 __le16 SubCommand; /* 2 = IOCTL/FSCTL */ 1349 __le32 FunctionCode; 1350 __u16 Fid; 1351 __u8 IsFsctl; /* 1 = File System Control 0 = device control (IOCTL) */ 1352 __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */ 1353 __le16 ByteCount; 1354 __u8 Pad[3]; 1355 __u8 Data[]; 1356 } __attribute__((packed)) TRANSACT_IOCTL_REQ; 1357 1358 typedef struct smb_com_transaction_compr_ioctl_req { 1359 struct smb_hdr hdr; /* wct = 23 */ 1360 __u8 MaxSetupCount; 1361 __u16 Reserved; 1362 __le32 TotalParameterCount; 1363 __le32 TotalDataCount; 1364 __le32 MaxParameterCount; 1365 __le32 MaxDataCount; 1366 __le32 ParameterCount; 1367 __le32 ParameterOffset; 1368 __le32 DataCount; 1369 __le32 DataOffset; 1370 __u8 SetupCount; /* four setup words follow subcommand */ 1371 /* SNIA spec incorrectly included spurious pad here */ 1372 __le16 SubCommand; /* 2 = IOCTL/FSCTL */ 1373 __le32 FunctionCode; 1374 __u16 Fid; 1375 __u8 IsFsctl; /* 1 = File System Control 0 = device control (IOCTL) */ 1376 __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */ 1377 __le16 ByteCount; 1378 __u8 Pad[3]; 1379 __le16 compression_state; /* See below for valid flags */ 1380 } __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ; 1381 1382 /* compression state flags */ 1383 #define COMPRESSION_FORMAT_NONE 0x0000 1384 #define COMPRESSION_FORMAT_DEFAULT 0x0001 1385 #define COMPRESSION_FORMAT_LZNT1 0x0002 1386 1387 typedef struct smb_com_transaction_ioctl_rsp { 1388 struct smb_hdr hdr; /* wct = 19 */ 1389 __u8 Reserved[3]; 1390 __le32 TotalParameterCount; 1391 __le32 TotalDataCount; 1392 __le32 ParameterCount; 1393 __le32 ParameterOffset; 1394 __le32 ParameterDisplacement; 1395 __le32 DataCount; 1396 __le32 DataOffset; 1397 __le32 DataDisplacement; 1398 __u8 SetupCount; /* 1 */ 1399 __le16 ReturnedDataLen; 1400 __le16 ByteCount; 1401 } __attribute__((packed)) TRANSACT_IOCTL_RSP; 1402 1403 #define CIFS_ACL_OWNER 1 1404 #define CIFS_ACL_GROUP 2 1405 #define CIFS_ACL_DACL 4 1406 #define CIFS_ACL_SACL 8 1407 1408 typedef struct smb_com_transaction_qsec_req { 1409 struct smb_hdr hdr; /* wct = 19 */ 1410 __u8 MaxSetupCount; 1411 __u16 Reserved; 1412 __le32 TotalParameterCount; 1413 __le32 TotalDataCount; 1414 __le32 MaxParameterCount; 1415 __le32 MaxDataCount; 1416 __le32 ParameterCount; 1417 __le32 ParameterOffset; 1418 __le32 DataCount; 1419 __le32 DataOffset; 1420 __u8 SetupCount; /* no setup words follow subcommand */ 1421 /* SNIA spec incorrectly included spurious pad here */ 1422 __le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */ 1423 __le16 ByteCount; /* bcc = 3 + 8 */ 1424 __u8 Pad[3]; 1425 __u16 Fid; 1426 __u16 Reserved2; 1427 __le32 AclFlags; 1428 } __attribute__((packed)) QUERY_SEC_DESC_REQ; 1429 1430 1431 typedef struct smb_com_transaction_ssec_req { 1432 struct smb_hdr hdr; /* wct = 19 */ 1433 __u8 MaxSetupCount; 1434 __u16 Reserved; 1435 __le32 TotalParameterCount; 1436 __le32 TotalDataCount; 1437 __le32 MaxParameterCount; 1438 __le32 MaxDataCount; 1439 __le32 ParameterCount; 1440 __le32 ParameterOffset; 1441 __le32 DataCount; 1442 __le32 DataOffset; 1443 __u8 SetupCount; /* no setup words follow subcommand */ 1444 /* SNIA spec incorrectly included spurious pad here */ 1445 __le16 SubCommand; /* 3 = SET_SECURITY_DESC */ 1446 __le16 ByteCount; /* bcc = 3 + 8 */ 1447 __u8 Pad[3]; 1448 __u16 Fid; 1449 __u16 Reserved2; 1450 __le32 AclFlags; 1451 } __attribute__((packed)) SET_SEC_DESC_REQ; 1452 1453 typedef struct smb_com_transaction_change_notify_req { 1454 struct smb_hdr hdr; /* wct = 23 */ 1455 __u8 MaxSetupCount; 1456 __u16 Reserved; 1457 __le32 TotalParameterCount; 1458 __le32 TotalDataCount; 1459 __le32 MaxParameterCount; 1460 __le32 MaxDataCount; 1461 __le32 ParameterCount; 1462 __le32 ParameterOffset; 1463 __le32 DataCount; 1464 __le32 DataOffset; 1465 __u8 SetupCount; /* four setup words follow subcommand */ 1466 /* SNIA spec incorrectly included spurious pad here */ 1467 __le16 SubCommand;/* 4 = Change Notify */ 1468 __le32 CompletionFilter; /* operation to monitor */ 1469 __u16 Fid; 1470 __u8 WatchTree; /* 1 = Monitor subdirectories */ 1471 __u8 Reserved2; 1472 __le16 ByteCount; 1473 /* __u8 Pad[3];*/ 1474 /* __u8 Data[];*/ 1475 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ; 1476 1477 /* BB eventually change to use generic ntransact rsp struct 1478 and validation routine */ 1479 typedef struct smb_com_transaction_change_notify_rsp { 1480 struct smb_hdr hdr; /* wct = 18 */ 1481 __u8 Reserved[3]; 1482 __le32 TotalParameterCount; 1483 __le32 TotalDataCount; 1484 __le32 ParameterCount; 1485 __le32 ParameterOffset; 1486 __le32 ParameterDisplacement; 1487 __le32 DataCount; 1488 __le32 DataOffset; 1489 __le32 DataDisplacement; 1490 __u8 SetupCount; /* 0 */ 1491 __u16 ByteCount; 1492 /* __u8 Pad[3]; */ 1493 } __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP; 1494 /* Completion Filter flags for Notify */ 1495 #define FILE_NOTIFY_CHANGE_FILE_NAME 0x00000001 1496 #define FILE_NOTIFY_CHANGE_DIR_NAME 0x00000002 1497 #define FILE_NOTIFY_CHANGE_NAME 0x00000003 1498 #define FILE_NOTIFY_CHANGE_ATTRIBUTES 0x00000004 1499 #define FILE_NOTIFY_CHANGE_SIZE 0x00000008 1500 #define FILE_NOTIFY_CHANGE_LAST_WRITE 0x00000010 1501 #define FILE_NOTIFY_CHANGE_LAST_ACCESS 0x00000020 1502 #define FILE_NOTIFY_CHANGE_CREATION 0x00000040 1503 #define FILE_NOTIFY_CHANGE_EA 0x00000080 1504 #define FILE_NOTIFY_CHANGE_SECURITY 0x00000100 1505 #define FILE_NOTIFY_CHANGE_STREAM_NAME 0x00000200 1506 #define FILE_NOTIFY_CHANGE_STREAM_SIZE 0x00000400 1507 #define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800 1508 1509 #define FILE_ACTION_ADDED 0x00000001 1510 #define FILE_ACTION_REMOVED 0x00000002 1511 #define FILE_ACTION_MODIFIED 0x00000003 1512 #define FILE_ACTION_RENAMED_OLD_NAME 0x00000004 1513 #define FILE_ACTION_RENAMED_NEW_NAME 0x00000005 1514 #define FILE_ACTION_ADDED_STREAM 0x00000006 1515 #define FILE_ACTION_REMOVED_STREAM 0x00000007 1516 #define FILE_ACTION_MODIFIED_STREAM 0x00000008 1517 1518 /* response contains array of the following structures */ 1519 struct file_notify_information { 1520 __le32 NextEntryOffset; 1521 __le32 Action; 1522 __le32 FileNameLength; 1523 __u8 FileName[]; 1524 } __attribute__((packed)); 1525 1526 struct cifs_quota_data { 1527 __u32 rsrvd1; /* 0 */ 1528 __u32 sid_size; 1529 __u64 rsrvd2; /* 0 */ 1530 __u64 space_used; 1531 __u64 soft_limit; 1532 __u64 hard_limit; 1533 char sid[]; /* variable size? */ 1534 } __attribute__((packed)); 1535 1536 /* quota sub commands */ 1537 #define QUOTA_LIST_CONTINUE 0 1538 #define QUOTA_LIST_START 0x100 1539 #define QUOTA_FOR_SID 0x101 1540 1541 struct trans2_req { 1542 /* struct smb_hdr hdr precedes. Set wct = 14+ */ 1543 __le16 TotalParameterCount; 1544 __le16 TotalDataCount; 1545 __le16 MaxParameterCount; 1546 __le16 MaxDataCount; 1547 __u8 MaxSetupCount; 1548 __u8 Reserved; 1549 __le16 Flags; 1550 __le32 Timeout; 1551 __u16 Reserved2; 1552 __le16 ParameterCount; 1553 __le16 ParameterOffset; 1554 __le16 DataCount; 1555 __le16 DataOffset; 1556 __u8 SetupCount; 1557 __u8 Reserved3; 1558 __le16 SubCommand; /* 1st setup word - SetupCount words follow */ 1559 __le16 ByteCount; 1560 } __attribute__((packed)); 1561 1562 struct smb_t2_req { 1563 struct smb_hdr hdr; 1564 struct trans2_req t2_req; 1565 } __attribute__((packed)); 1566 1567 struct trans2_resp { 1568 /* struct smb_hdr hdr precedes. Note wct = 10 + setup count */ 1569 __le16 TotalParameterCount; 1570 __le16 TotalDataCount; 1571 __u16 Reserved; 1572 __le16 ParameterCount; 1573 __le16 ParameterOffset; 1574 __le16 ParameterDisplacement; 1575 __le16 DataCount; 1576 __le16 DataOffset; 1577 __le16 DataDisplacement; 1578 __u8 SetupCount; 1579 __u8 Reserved1; 1580 /* SetupWords[SetupCount]; 1581 __u16 ByteCount; 1582 __u16 Reserved2;*/ 1583 /* data area follows */ 1584 } __attribute__((packed)); 1585 1586 struct smb_t2_rsp { 1587 struct smb_hdr hdr; 1588 struct trans2_resp t2_rsp; 1589 } __attribute__((packed)); 1590 1591 /* PathInfo/FileInfo infolevels */ 1592 #define SMB_INFO_STANDARD 1 1593 #define SMB_SET_FILE_EA 2 1594 #define SMB_QUERY_FILE_EA_SIZE 2 1595 #define SMB_INFO_QUERY_EAS_FROM_LIST 3 1596 #define SMB_INFO_QUERY_ALL_EAS 4 1597 #define SMB_INFO_IS_NAME_VALID 6 1598 #define SMB_QUERY_FILE_BASIC_INFO 0x101 1599 #define SMB_QUERY_FILE_STANDARD_INFO 0x102 1600 #define SMB_QUERY_FILE_EA_INFO 0x103 1601 #define SMB_QUERY_FILE_NAME_INFO 0x104 1602 #define SMB_QUERY_FILE_ALLOCATION_INFO 0x105 1603 #define SMB_QUERY_FILE_END_OF_FILEINFO 0x106 1604 #define SMB_QUERY_FILE_ALL_INFO 0x107 1605 #define SMB_QUERY_ALT_NAME_INFO 0x108 1606 #define SMB_QUERY_FILE_STREAM_INFO 0x109 1607 #define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B 1608 #define SMB_QUERY_FILE_UNIX_BASIC 0x200 1609 #define SMB_QUERY_FILE_UNIX_LINK 0x201 1610 #define SMB_QUERY_POSIX_ACL 0x204 1611 #define SMB_QUERY_XATTR 0x205 /* e.g. system EA name space */ 1612 #define SMB_QUERY_ATTR_FLAGS 0x206 /* append,immutable etc. */ 1613 #define SMB_QUERY_POSIX_PERMISSION 0x207 1614 #define SMB_QUERY_POSIX_LOCK 0x208 1615 /* #define SMB_POSIX_OPEN 0x209 */ 1616 /* #define SMB_POSIX_UNLINK 0x20a */ 1617 #define SMB_QUERY_FILE__UNIX_INFO2 0x20b 1618 #define SMB_QUERY_FILE_INTERNAL_INFO 0x3ee 1619 #define SMB_QUERY_FILE_ACCESS_INFO 0x3f0 1620 #define SMB_QUERY_FILE_NAME_INFO2 0x3f1 /* 0x30 bytes */ 1621 #define SMB_QUERY_FILE_POSITION_INFO 0x3f6 1622 #define SMB_QUERY_FILE_MODE_INFO 0x3f8 1623 #define SMB_QUERY_FILE_ALGN_INFO 0x3f9 1624 1625 1626 #define SMB_SET_FILE_BASIC_INFO 0x101 1627 #define SMB_SET_FILE_DISPOSITION_INFO 0x102 1628 #define SMB_SET_FILE_ALLOCATION_INFO 0x103 1629 #define SMB_SET_FILE_END_OF_FILE_INFO 0x104 1630 #define SMB_SET_FILE_UNIX_BASIC 0x200 1631 #define SMB_SET_FILE_UNIX_LINK 0x201 1632 #define SMB_SET_FILE_UNIX_HLINK 0x203 1633 #define SMB_SET_POSIX_ACL 0x204 1634 #define SMB_SET_XATTR 0x205 1635 #define SMB_SET_ATTR_FLAGS 0x206 /* append, immutable etc. */ 1636 #define SMB_SET_POSIX_LOCK 0x208 1637 #define SMB_POSIX_OPEN 0x209 1638 #define SMB_POSIX_UNLINK 0x20a 1639 #define SMB_SET_FILE_UNIX_INFO2 0x20b 1640 #define SMB_SET_FILE_BASIC_INFO2 0x3ec 1641 #define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */ 1642 #define SMB_FILE_ALL_INFO2 0x3fa 1643 #define SMB_SET_FILE_ALLOCATION_INFO2 0x3fb 1644 #define SMB_SET_FILE_END_OF_FILE_INFO2 0x3fc 1645 #define SMB_FILE_MOVE_CLUSTER_INFO 0x407 1646 #define SMB_FILE_QUOTA_INFO 0x408 1647 #define SMB_FILE_REPARSEPOINT_INFO 0x409 1648 #define SMB_FILE_MAXIMUM_INFO 0x40d 1649 1650 /* Find File infolevels */ 1651 #define SMB_FIND_FILE_INFO_STANDARD 0x001 1652 #define SMB_FIND_FILE_QUERY_EA_SIZE 0x002 1653 #define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003 1654 #define SMB_FIND_FILE_DIRECTORY_INFO 0x101 1655 #define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102 1656 #define SMB_FIND_FILE_NAMES_INFO 0x103 1657 #define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104 1658 #define SMB_FIND_FILE_ID_FULL_DIR_INFO 0x105 1659 #define SMB_FIND_FILE_ID_BOTH_DIR_INFO 0x106 1660 #define SMB_FIND_FILE_UNIX 0x202 1661 /* #define SMB_FIND_FILE_POSIX_INFO 0x064 */ 1662 1663 typedef struct smb_com_transaction2_qpi_req { 1664 struct smb_hdr hdr; /* wct = 14+ */ 1665 __le16 TotalParameterCount; 1666 __le16 TotalDataCount; 1667 __le16 MaxParameterCount; 1668 __le16 MaxDataCount; 1669 __u8 MaxSetupCount; 1670 __u8 Reserved; 1671 __le16 Flags; 1672 __le32 Timeout; 1673 __u16 Reserved2; 1674 __le16 ParameterCount; 1675 __le16 ParameterOffset; 1676 __le16 DataCount; 1677 __le16 DataOffset; 1678 __u8 SetupCount; 1679 __u8 Reserved3; 1680 __le16 SubCommand; /* one setup word */ 1681 __le16 ByteCount; 1682 __u8 Pad; 1683 __le16 InformationLevel; 1684 __u32 Reserved4; 1685 char FileName[]; 1686 } __attribute__((packed)) TRANSACTION2_QPI_REQ; 1687 1688 typedef struct smb_com_transaction2_qpi_rsp { 1689 struct smb_hdr hdr; /* wct = 10 + SetupCount */ 1690 struct trans2_resp t2; 1691 __u16 ByteCount; 1692 __u16 Reserved2; /* parameter word is present for infolevels > 100 */ 1693 } __attribute__((packed)) TRANSACTION2_QPI_RSP; 1694 1695 typedef struct smb_com_transaction2_spi_req { 1696 struct smb_hdr hdr; /* wct = 15 */ 1697 __le16 TotalParameterCount; 1698 __le16 TotalDataCount; 1699 __le16 MaxParameterCount; 1700 __le16 MaxDataCount; 1701 __u8 MaxSetupCount; 1702 __u8 Reserved; 1703 __le16 Flags; 1704 __le32 Timeout; 1705 __u16 Reserved2; 1706 __le16 ParameterCount; 1707 __le16 ParameterOffset; 1708 __le16 DataCount; 1709 __le16 DataOffset; 1710 __u8 SetupCount; 1711 __u8 Reserved3; 1712 __le16 SubCommand; /* one setup word */ 1713 __le16 ByteCount; 1714 __u8 Pad; 1715 __u16 Pad1; 1716 __le16 InformationLevel; 1717 __u32 Reserved4; 1718 char FileName[]; 1719 } __attribute__((packed)) TRANSACTION2_SPI_REQ; 1720 1721 typedef struct smb_com_transaction2_spi_rsp { 1722 struct smb_hdr hdr; /* wct = 10 + SetupCount */ 1723 struct trans2_resp t2; 1724 __u16 ByteCount; 1725 __u16 Reserved2; /* parameter word is present for infolevels > 100 */ 1726 } __attribute__((packed)) TRANSACTION2_SPI_RSP; 1727 1728 struct set_file_rename { 1729 __le32 overwrite; /* 1 = overwrite dest */ 1730 __u32 root_fid; /* zero */ 1731 __le32 target_name_len; 1732 char target_name[]; /* Must be unicode */ 1733 } __attribute__((packed)); 1734 1735 struct smb_com_transaction2_sfi_req { 1736 struct smb_hdr hdr; /* wct = 15 */ 1737 __le16 TotalParameterCount; 1738 __le16 TotalDataCount; 1739 __le16 MaxParameterCount; 1740 __le16 MaxDataCount; 1741 __u8 MaxSetupCount; 1742 __u8 Reserved; 1743 __le16 Flags; 1744 __le32 Timeout; 1745 __u16 Reserved2; 1746 __le16 ParameterCount; 1747 __le16 ParameterOffset; 1748 __le16 DataCount; 1749 __le16 DataOffset; 1750 __u8 SetupCount; 1751 __u8 Reserved3; 1752 __le16 SubCommand; /* one setup word */ 1753 __le16 ByteCount; 1754 __u8 Pad; 1755 __u16 Pad1; 1756 __u16 Fid; 1757 __le16 InformationLevel; 1758 __u16 Reserved4; 1759 __u8 payload[]; 1760 } __attribute__((packed)); 1761 1762 struct smb_com_transaction2_sfi_rsp { 1763 struct smb_hdr hdr; /* wct = 10 + SetupCount */ 1764 struct trans2_resp t2; 1765 __u16 ByteCount; 1766 __u16 Reserved2; /* parameter word reserved - present for infolevels > 100 */ 1767 } __attribute__((packed)); 1768 1769 struct smb_t2_qfi_req { 1770 struct smb_hdr hdr; 1771 struct trans2_req t2; 1772 __u8 Pad; 1773 __u16 Fid; 1774 __le16 InformationLevel; 1775 } __attribute__((packed)); 1776 1777 struct smb_t2_qfi_rsp { 1778 struct smb_hdr hdr; /* wct = 10 + SetupCount */ 1779 struct trans2_resp t2; 1780 __u16 ByteCount; 1781 __u16 Reserved2; /* parameter word reserved - present for infolevels > 100 */ 1782 } __attribute__((packed)); 1783 1784 /* 1785 * Flags on T2 FINDFIRST and FINDNEXT 1786 */ 1787 #define CIFS_SEARCH_CLOSE_ALWAYS 0x0001 1788 #define CIFS_SEARCH_CLOSE_AT_END 0x0002 1789 #define CIFS_SEARCH_RETURN_RESUME 0x0004 1790 #define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008 1791 #define CIFS_SEARCH_BACKUP_SEARCH 0x0010 1792 1793 /* 1794 * Size of the resume key on FINDFIRST and FINDNEXT calls 1795 */ 1796 #define CIFS_SMB_RESUME_KEY_SIZE 4 1797 1798 typedef struct smb_com_transaction2_ffirst_req { 1799 struct smb_hdr hdr; /* wct = 15 */ 1800 __le16 TotalParameterCount; 1801 __le16 TotalDataCount; 1802 __le16 MaxParameterCount; 1803 __le16 MaxDataCount; 1804 __u8 MaxSetupCount; 1805 __u8 Reserved; 1806 __le16 Flags; 1807 __le32 Timeout; 1808 __u16 Reserved2; 1809 __le16 ParameterCount; 1810 __le16 ParameterOffset; 1811 __le16 DataCount; 1812 __le16 DataOffset; 1813 __u8 SetupCount; /* one */ 1814 __u8 Reserved3; 1815 __le16 SubCommand; /* TRANS2_FIND_FIRST */ 1816 __le16 ByteCount; 1817 __u8 Pad; 1818 __le16 SearchAttributes; 1819 __le16 SearchCount; 1820 __le16 SearchFlags; 1821 __le16 InformationLevel; 1822 __le32 SearchStorageType; 1823 char FileName[]; 1824 } __attribute__((packed)) TRANSACTION2_FFIRST_REQ; 1825 1826 typedef struct smb_com_transaction2_ffirst_rsp { 1827 struct smb_hdr hdr; /* wct = 10 */ 1828 struct trans2_resp t2; 1829 __u16 ByteCount; 1830 } __attribute__((packed)) TRANSACTION2_FFIRST_RSP; 1831 1832 typedef struct smb_com_transaction2_ffirst_rsp_parms { 1833 __u16 SearchHandle; 1834 __le16 SearchCount; 1835 __le16 EndofSearch; 1836 __le16 EAErrorOffset; 1837 __le16 LastNameOffset; 1838 } __attribute__((packed)) T2_FFIRST_RSP_PARMS; 1839 1840 typedef struct smb_com_transaction2_fnext_req { 1841 struct smb_hdr hdr; /* wct = 15 */ 1842 __le16 TotalParameterCount; 1843 __le16 TotalDataCount; 1844 __le16 MaxParameterCount; 1845 __le16 MaxDataCount; 1846 __u8 MaxSetupCount; 1847 __u8 Reserved; 1848 __le16 Flags; 1849 __le32 Timeout; 1850 __u16 Reserved2; 1851 __le16 ParameterCount; 1852 __le16 ParameterOffset; 1853 __le16 DataCount; 1854 __le16 DataOffset; 1855 __u8 SetupCount; /* one */ 1856 __u8 Reserved3; 1857 __le16 SubCommand; /* TRANS2_FIND_NEXT */ 1858 __le16 ByteCount; 1859 __u8 Pad; 1860 __u16 SearchHandle; 1861 __le16 SearchCount; 1862 __le16 InformationLevel; 1863 __u32 ResumeKey; 1864 __le16 SearchFlags; 1865 char ResumeFileName[]; 1866 } __attribute__((packed)) TRANSACTION2_FNEXT_REQ; 1867 1868 typedef struct smb_com_transaction2_fnext_rsp { 1869 struct smb_hdr hdr; /* wct = 10 */ 1870 struct trans2_resp t2; 1871 __u16 ByteCount; 1872 } __attribute__((packed)) TRANSACTION2_FNEXT_RSP; 1873 1874 typedef struct smb_com_transaction2_fnext_rsp_parms { 1875 __le16 SearchCount; 1876 __le16 EndofSearch; 1877 __le16 EAErrorOffset; 1878 __le16 LastNameOffset; 1879 } __attribute__((packed)) T2_FNEXT_RSP_PARMS; 1880 1881 /* QFSInfo Levels */ 1882 #define SMB_INFO_ALLOCATION 1 1883 #define SMB_INFO_VOLUME 2 1884 #define SMB_QUERY_FS_VOLUME_INFO 0x102 1885 #define SMB_QUERY_FS_SIZE_INFO 0x103 1886 #define SMB_QUERY_FS_DEVICE_INFO 0x104 1887 #define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105 1888 #define SMB_QUERY_CIFS_UNIX_INFO 0x200 1889 #define SMB_QUERY_POSIX_FS_INFO 0x201 1890 #define SMB_QUERY_POSIX_WHO_AM_I 0x202 1891 #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 1892 #define SMB_QUERY_FS_PROXY 0x204 /* WAFS enabled. Returns structure 1893 FILE_SYSTEM__UNIX_INFO to tell 1894 whether new NTIOCTL available 1895 (0xACE) for WAN friendly SMB 1896 operations to be carried */ 1897 #define SMB_QUERY_LABEL_INFO 0x3ea 1898 #define SMB_QUERY_FS_QUOTA_INFO 0x3ee 1899 #define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef 1900 #define SMB_QUERY_OBJECTID_INFO 0x3f0 1901 1902 typedef struct smb_com_transaction2_qfsi_req { 1903 struct smb_hdr hdr; /* wct = 14+ */ 1904 __le16 TotalParameterCount; 1905 __le16 TotalDataCount; 1906 __le16 MaxParameterCount; 1907 __le16 MaxDataCount; 1908 __u8 MaxSetupCount; 1909 __u8 Reserved; 1910 __le16 Flags; 1911 __le32 Timeout; 1912 __u16 Reserved2; 1913 __le16 ParameterCount; 1914 __le16 ParameterOffset; 1915 __le16 DataCount; 1916 __le16 DataOffset; 1917 __u8 SetupCount; 1918 __u8 Reserved3; 1919 __le16 SubCommand; /* one setup word */ 1920 __le16 ByteCount; 1921 __u8 Pad; 1922 __le16 InformationLevel; 1923 } __attribute__((packed)) TRANSACTION2_QFSI_REQ; 1924 1925 typedef struct smb_com_transaction_qfsi_rsp { 1926 struct smb_hdr hdr; /* wct = 10 + SetupCount */ 1927 struct trans2_resp t2; 1928 __u16 ByteCount; 1929 __u8 Pad; /* may be three bytes? *//* followed by data area */ 1930 } __attribute__((packed)) TRANSACTION2_QFSI_RSP; 1931 1932 typedef struct whoami_rsp_data { /* Query level 0x202 */ 1933 __u32 flags; /* 0 = Authenticated user 1 = GUEST */ 1934 __u32 mask; /* which flags bits server understands ie 0x0001 */ 1935 __u64 unix_user_id; 1936 __u64 unix_user_gid; 1937 __u32 number_of_supplementary_gids; /* may be zero */ 1938 __u32 number_of_sids; /* may be zero */ 1939 __u32 length_of_sid_array; /* in bytes - may be zero */ 1940 __u32 pad; /* reserved - MBZ */ 1941 /* __u64 gid_array[0]; */ /* may be empty */ 1942 /* __u8 * psid_list */ /* may be empty */ 1943 } __attribute__((packed)) WHOAMI_RSP_DATA; 1944 1945 /* SETFSInfo Levels */ 1946 #define SMB_SET_CIFS_UNIX_INFO 0x200 1947 /* level 0x203 is defined above in list of QFS info levels */ 1948 /* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */ 1949 1950 /* Level 0x200 request structure follows */ 1951 typedef struct smb_com_transaction2_setfsi_req { 1952 struct smb_hdr hdr; /* wct = 15 */ 1953 __le16 TotalParameterCount; 1954 __le16 TotalDataCount; 1955 __le16 MaxParameterCount; 1956 __le16 MaxDataCount; 1957 __u8 MaxSetupCount; 1958 __u8 Reserved; 1959 __le16 Flags; 1960 __le32 Timeout; 1961 __u16 Reserved2; 1962 __le16 ParameterCount; /* 4 */ 1963 __le16 ParameterOffset; 1964 __le16 DataCount; /* 12 */ 1965 __le16 DataOffset; 1966 __u8 SetupCount; /* one */ 1967 __u8 Reserved3; 1968 __le16 SubCommand; /* TRANS2_SET_FS_INFORMATION */ 1969 __le16 ByteCount; 1970 __u8 Pad; 1971 __u16 FileNum; /* Parameters start. */ 1972 __le16 InformationLevel;/* Parameters end. */ 1973 __le16 ClientUnixMajor; /* Data start. */ 1974 __le16 ClientUnixMinor; 1975 __le64 ClientUnixCap; /* Data end */ 1976 } __attribute__((packed)) TRANSACTION2_SETFSI_REQ; 1977 1978 /* level 0x203 request structure follows */ 1979 typedef struct smb_com_transaction2_setfs_enc_req { 1980 struct smb_hdr hdr; /* wct = 15 */ 1981 __le16 TotalParameterCount; 1982 __le16 TotalDataCount; 1983 __le16 MaxParameterCount; 1984 __le16 MaxDataCount; 1985 __u8 MaxSetupCount; 1986 __u8 Reserved; 1987 __le16 Flags; 1988 __le32 Timeout; 1989 __u16 Reserved2; 1990 __le16 ParameterCount; /* 4 */ 1991 __le16 ParameterOffset; 1992 __le16 DataCount; /* 12 */ 1993 __le16 DataOffset; 1994 __u8 SetupCount; /* one */ 1995 __u8 Reserved3; 1996 __le16 SubCommand; /* TRANS2_SET_FS_INFORMATION */ 1997 __le16 ByteCount; 1998 __u8 Pad; 1999 __u16 Reserved4; /* Parameters start. */ 2000 __le16 InformationLevel;/* Parameters end. */ 2001 /* NTLMSSP Blob, Data start. */ 2002 } __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ; 2003 2004 /* response for setfsinfo levels 0x200 and 0x203 */ 2005 typedef struct smb_com_transaction2_setfsi_rsp { 2006 struct smb_hdr hdr; /* wct = 10 */ 2007 struct trans2_resp t2; 2008 __u16 ByteCount; 2009 } __attribute__((packed)) TRANSACTION2_SETFSI_RSP; 2010 2011 typedef struct smb_com_transaction2_get_dfs_refer_req { 2012 struct smb_hdr hdr; /* wct = 15 */ 2013 __le16 TotalParameterCount; 2014 __le16 TotalDataCount; 2015 __le16 MaxParameterCount; 2016 __le16 MaxDataCount; 2017 __u8 MaxSetupCount; 2018 __u8 Reserved; 2019 __le16 Flags; 2020 __le32 Timeout; 2021 __u16 Reserved2; 2022 __le16 ParameterCount; 2023 __le16 ParameterOffset; 2024 __le16 DataCount; 2025 __le16 DataOffset; 2026 __u8 SetupCount; 2027 __u8 Reserved3; 2028 __le16 SubCommand; /* one setup word */ 2029 __le16 ByteCount; 2030 __u8 Pad[3]; /* Win2K has sent 0x0F01 (max response length 2031 perhaps?) followed by one byte pad - doesn't 2032 seem to matter though */ 2033 __le16 MaxReferralLevel; 2034 char RequestFileName[]; 2035 } __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ; 2036 2037 #define DFS_VERSION cpu_to_le16(0x0003) 2038 2039 /* DFS server target type */ 2040 #define DFS_TYPE_LINK 0x0000 /* also for sysvol targets */ 2041 #define DFS_TYPE_ROOT 0x0001 2042 2043 /* Referral Entry Flags */ 2044 #define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */ 2045 #define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */ 2046 2047 typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */ 2048 __le16 VersionNumber; /* must be 3 or 4 */ 2049 __le16 Size; 2050 __le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */ 2051 __le16 ReferralEntryFlags; 2052 __le32 TimeToLive; 2053 __le16 DfsPathOffset; 2054 __le16 DfsAlternatePathOffset; 2055 __le16 NetworkAddressOffset; /* offset of the link target */ 2056 __u8 ServiceSiteGuid[16]; /* MBZ, ignored */ 2057 } __attribute__((packed)) REFERRAL3; 2058 2059 struct get_dfs_referral_rsp { 2060 __le16 PathConsumed; 2061 __le16 NumberOfReferrals; 2062 __le32 DFSFlags; 2063 REFERRAL3 referrals[]; /* array of level 3 dfs_referral structures */ 2064 /* followed by the strings pointed to by the referral structures */ 2065 } __packed; 2066 2067 typedef struct smb_com_transaction_get_dfs_refer_rsp { 2068 struct smb_hdr hdr; /* wct = 10 */ 2069 struct trans2_resp t2; 2070 __u16 ByteCount; 2071 __u8 Pad; 2072 struct get_dfs_referral_rsp dfs_data; 2073 } __packed TRANSACTION2_GET_DFS_REFER_RSP; 2074 2075 /* DFS Flags */ 2076 #define DFSREF_REFERRAL_SERVER 0x00000001 /* all targets are DFS roots */ 2077 #define DFSREF_STORAGE_SERVER 0x00000002 /* no further ref requests needed */ 2078 #define DFSREF_TARGET_FAILBACK 0x00000004 /* only for DFS referral version 4 */ 2079 2080 /* 2081 ************************************************************************ 2082 * All structs for everything above the SMB PDUs themselves 2083 * (such as the T2 level specific data) go here 2084 ************************************************************************ 2085 */ 2086 2087 /* 2088 * Information on a server 2089 */ 2090 2091 struct serverInfo { 2092 char name[16]; 2093 unsigned char versionMajor; 2094 unsigned char versionMinor; 2095 unsigned long type; 2096 unsigned int commentOffset; 2097 } __attribute__((packed)); 2098 2099 /* 2100 * The following structure is the format of the data returned on a NetShareEnum 2101 * with level "90" (x5A) 2102 */ 2103 2104 struct shareInfo { 2105 char shareName[13]; 2106 char pad; 2107 unsigned short type; 2108 unsigned int commentOffset; 2109 } __attribute__((packed)); 2110 2111 struct aliasInfo { 2112 char aliasName[9]; 2113 char pad; 2114 unsigned int commentOffset; 2115 unsigned char type[2]; 2116 } __attribute__((packed)); 2117 2118 struct aliasInfo92 { 2119 int aliasNameOffset; 2120 int serverNameOffset; 2121 int shareNameOffset; 2122 } __attribute__((packed)); 2123 2124 typedef struct { 2125 __le64 TotalAllocationUnits; 2126 __le64 FreeAllocationUnits; 2127 __le32 SectorsPerAllocationUnit; 2128 __le32 BytesPerSector; 2129 } __attribute__((packed)) FILE_SYSTEM_INFO; /* size info, level 0x103 */ 2130 2131 typedef struct { 2132 __le32 fsid; 2133 __le32 SectorsPerAllocationUnit; 2134 __le32 TotalAllocationUnits; 2135 __le32 FreeAllocationUnits; 2136 __le16 BytesPerSector; 2137 } __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO; 2138 2139 typedef struct { 2140 __le16 MajorVersionNumber; 2141 __le16 MinorVersionNumber; 2142 __le64 Capability; 2143 } __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/ 2144 2145 /* Version numbers for CIFS UNIX major and minor. */ 2146 #define CIFS_UNIX_MAJOR_VERSION 1 2147 #define CIFS_UNIX_MINOR_VERSION 0 2148 2149 /* Linux/Unix extensions capability flags */ 2150 #define CIFS_UNIX_FCNTL_CAP 0x00000001 /* support for fcntl locks */ 2151 #define CIFS_UNIX_POSIX_ACL_CAP 0x00000002 /* support getfacl/setfacl */ 2152 #define CIFS_UNIX_XATTR_CAP 0x00000004 /* support new namespace */ 2153 #define CIFS_UNIX_EXTATTR_CAP 0x00000008 /* support chattr/chflag */ 2154 #define CIFS_UNIX_POSIX_PATHNAMES_CAP 0x00000010 /* Allow POSIX path chars */ 2155 #define CIFS_UNIX_POSIX_PATH_OPS_CAP 0x00000020 /* Allow new POSIX path based 2156 calls including posix open 2157 and posix unlink */ 2158 #define CIFS_UNIX_LARGE_READ_CAP 0x00000040 /* support reads >128K (up to 0xFFFF00 */ 2159 #define CIFS_UNIX_LARGE_WRITE_CAP 0x00000080 2160 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */ 2161 #define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP 0x00000200 /* must do */ 2162 #define CIFS_UNIX_PROXY_CAP 0x00000400 /* Proxy cap: 0xACE ioctl and QFS PROXY call */ 2163 #ifdef CONFIG_CIFS_POSIX 2164 /* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send 2165 LockingX instead of posix locking call on unix sess (and we do not expect 2166 LockingX to use different (ie Windows) semantics than posix locking on 2167 the same session (if WINE needs to do this later, we can add this cap 2168 back in later */ 2169 /* #define CIFS_UNIX_CAP_MASK 0x000000fb */ 2170 #define CIFS_UNIX_CAP_MASK 0x000003db 2171 #else 2172 #define CIFS_UNIX_CAP_MASK 0x00000013 2173 #endif /* CONFIG_CIFS_POSIX */ 2174 2175 2176 #define CIFS_POSIX_EXTENSIONS 0x00000010 /* support for new QFSInfo */ 2177 2178 typedef struct { 2179 /* For undefined recommended transfer size return -1 in that field */ 2180 __le32 OptimalTransferSize; /* bsize on some os, iosize on other os */ 2181 __le32 BlockSize; 2182 /* The next three fields are in terms of the block size. 2183 (above). If block size is unknown, 4096 would be a 2184 reasonable block size for a server to report. 2185 Note that returning the blocks/blocksavail removes need 2186 to make a second call (to QFSInfo level 0x103 to get this info. 2187 UserBlockAvail is typically less than or equal to BlocksAvail, 2188 if no distinction is made return the same value in each */ 2189 __le64 TotalBlocks; 2190 __le64 BlocksAvail; /* bfree */ 2191 __le64 UserBlocksAvail; /* bavail */ 2192 /* For undefined Node fields or FSID return -1 */ 2193 __le64 TotalFileNodes; 2194 __le64 FreeFileNodes; 2195 __le64 FileSysIdentifier; /* fsid */ 2196 /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */ 2197 /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */ 2198 } __attribute__((packed)) FILE_SYSTEM_POSIX_INFO; 2199 2200 /* DeviceType Flags */ 2201 #define FILE_DEVICE_CD_ROM 0x00000002 2202 #define FILE_DEVICE_CD_ROM_FILE_SYSTEM 0x00000003 2203 #define FILE_DEVICE_DFS 0x00000006 2204 #define FILE_DEVICE_DISK 0x00000007 2205 #define FILE_DEVICE_DISK_FILE_SYSTEM 0x00000008 2206 #define FILE_DEVICE_FILE_SYSTEM 0x00000009 2207 #define FILE_DEVICE_NAMED_PIPE 0x00000011 2208 #define FILE_DEVICE_NETWORK 0x00000012 2209 #define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014 2210 #define FILE_DEVICE_NULL 0x00000015 2211 #define FILE_DEVICE_PARALLEL_PORT 0x00000016 2212 #define FILE_DEVICE_PRINTER 0x00000018 2213 #define FILE_DEVICE_SERIAL_PORT 0x0000001b 2214 #define FILE_DEVICE_STREAMS 0x0000001e 2215 #define FILE_DEVICE_TAPE 0x0000001f 2216 #define FILE_DEVICE_TAPE_FILE_SYSTEM 0x00000020 2217 #define FILE_DEVICE_VIRTUAL_DISK 0x00000024 2218 #define FILE_DEVICE_NETWORK_REDIRECTOR 0x00000028 2219 2220 /* Device Characteristics */ 2221 #define FILE_REMOVABLE_MEDIA 0x00000001 2222 #define FILE_READ_ONLY_DEVICE 0x00000002 2223 #define FILE_FLOPPY_DISKETTE 0x00000004 2224 #define FILE_WRITE_ONCE_MEDIA 0x00000008 2225 #define FILE_REMOTE_DEVICE 0x00000010 2226 #define FILE_DEVICE_IS_MOUNTED 0x00000020 2227 #define FILE_VIRTUAL_VOLUME 0x00000040 2228 #define FILE_DEVICE_SECURE_OPEN 0x00000100 2229 #define FILE_CHARACTERISTIC_TS_DEVICE 0x00001000 2230 #define FILE_CHARACTERISTIC_WEBDAV_DEVICE 0x00002000 2231 #define FILE_PORTABLE_DEVICE 0x00004000 2232 #define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000 2233 2234 typedef struct { 2235 __le32 DeviceType; 2236 __le32 DeviceCharacteristics; 2237 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */ 2238 2239 /* minimum includes first three fields, and empty FS Name */ 2240 #define MIN_FS_ATTR_INFO_SIZE 12 2241 2242 2243 /* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */ 2244 #define FILE_SUPPORTS_SPARSE_VDL 0x10000000 /* faster nonsparse extend */ 2245 #define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */ 2246 #define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000 2247 #define FILE_SUPPORTS_USN_JOURNAL 0x02000000 2248 #define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000 2249 #define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000 2250 #define FILE_SUPPORTS_HARD_LINKS 0x00400000 2251 #define FILE_SUPPORTS_TRANSACTIONS 0x00200000 2252 #define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000 2253 #define FILE_READ_ONLY_VOLUME 0x00080000 2254 #define FILE_NAMED_STREAMS 0x00040000 2255 #define FILE_SUPPORTS_ENCRYPTION 0x00020000 2256 #define FILE_SUPPORTS_OBJECT_IDS 0x00010000 2257 #define FILE_VOLUME_IS_COMPRESSED 0x00008000 2258 #define FILE_SUPPORTS_POSIX_UNLINK_RENAME 0x00000400 2259 #define FILE_RETURNS_CLEANUP_RESULT_INFO 0x00000200 2260 #define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100 2261 #define FILE_SUPPORTS_REPARSE_POINTS 0x00000080 2262 #define FILE_SUPPORTS_SPARSE_FILES 0x00000040 2263 #define FILE_VOLUME_QUOTAS 0x00000020 2264 #define FILE_FILE_COMPRESSION 0x00000010 2265 #define FILE_PERSISTENT_ACLS 0x00000008 2266 #define FILE_UNICODE_ON_DISK 0x00000004 2267 #define FILE_CASE_PRESERVED_NAMES 0x00000002 2268 #define FILE_CASE_SENSITIVE_SEARCH 0x00000001 2269 typedef struct { 2270 __le32 Attributes; 2271 __le32 MaxPathNameComponentLength; 2272 __le32 FileSystemNameLen; 2273 char FileSystemName[52]; /* do not have to save this - get subset? */ 2274 } __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO; 2275 2276 /******************************************************************************/ 2277 /* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */ 2278 /******************************************************************************/ 2279 typedef struct { /* data block encoding of response to level 263 QPathInfo */ 2280 struct_group_attr(common_attributes, __packed, 2281 __le64 CreationTime; 2282 __le64 LastAccessTime; 2283 __le64 LastWriteTime; 2284 __le64 ChangeTime; 2285 __le32 Attributes; 2286 ); 2287 __u32 Pad1; 2288 __le64 AllocationSize; 2289 __le64 EndOfFile; /* size ie offset to first free byte in file */ 2290 __le32 NumberOfLinks; /* hard links */ 2291 __u8 DeletePending; 2292 __u8 Directory; 2293 __u16 Pad2; 2294 __le32 EASize; 2295 __le32 FileNameLength; 2296 union { 2297 char __pad; 2298 DECLARE_FLEX_ARRAY(char, FileName); 2299 }; 2300 } __attribute__((packed)) FILE_ALL_INFO; /* level 0x107 QPathInfo */ 2301 2302 typedef struct { 2303 __le64 AllocationSize; 2304 __le64 EndOfFile; /* size ie offset to first free byte in file */ 2305 __le32 NumberOfLinks; /* hard links */ 2306 __u8 DeletePending; 2307 __u8 Directory; 2308 __u16 Pad; 2309 } __attribute__((packed)) FILE_STANDARD_INFO; /* level 0x102 QPathInfo */ 2310 2311 2312 /* defines for enumerating possible values of the Unix type field below */ 2313 #define UNIX_FILE 0 2314 #define UNIX_DIR 1 2315 #define UNIX_SYMLINK 2 2316 #define UNIX_CHARDEV 3 2317 #define UNIX_BLOCKDEV 4 2318 #define UNIX_FIFO 5 2319 #define UNIX_SOCKET 6 2320 typedef struct { 2321 __le64 EndOfFile; 2322 __le64 NumOfBytes; 2323 __le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */ 2324 __le64 LastAccessTime; 2325 __le64 LastModificationTime; 2326 __le64 Uid; 2327 __le64 Gid; 2328 __le32 Type; 2329 __le64 DevMajor; 2330 __le64 DevMinor; 2331 __le64 UniqueId; 2332 __le64 Permissions; 2333 __le64 Nlinks; 2334 } __attribute__((packed)) FILE_UNIX_BASIC_INFO; /* level 0x200 QPathInfo */ 2335 2336 typedef struct { 2337 DECLARE_FLEX_ARRAY(char, LinkDest); 2338 } __attribute__((packed)) FILE_UNIX_LINK_INFO; /* level 0x201 QPathInfo */ 2339 2340 /* The following three structures are needed only for 2341 setting time to NT4 and some older servers via 2342 the primitive DOS time format */ 2343 typedef struct { 2344 __u16 Day:5; 2345 __u16 Month:4; 2346 __u16 Year:7; 2347 } __attribute__((packed)) SMB_DATE; 2348 2349 typedef struct { 2350 __u16 TwoSeconds:5; 2351 __u16 Minutes:6; 2352 __u16 Hours:5; 2353 } __attribute__((packed)) SMB_TIME; 2354 2355 typedef struct { 2356 __le16 CreationDate; /* SMB Date see above */ 2357 __le16 CreationTime; /* SMB Time */ 2358 __le16 LastAccessDate; 2359 __le16 LastAccessTime; 2360 __le16 LastWriteDate; 2361 __le16 LastWriteTime; 2362 __le32 DataSize; /* File Size (EOF) */ 2363 __le32 AllocationSize; 2364 __le16 Attributes; /* verify not u32 */ 2365 __le32 EASize; 2366 } __attribute__((packed)) FILE_INFO_STANDARD; /* level 1 SetPath/FileInfo */ 2367 2368 typedef struct { 2369 __le64 CreationTime; 2370 __le64 LastAccessTime; 2371 __le64 LastWriteTime; 2372 __le64 ChangeTime; 2373 __le32 Attributes; 2374 __u32 Pad; 2375 } __attribute__((packed)) FILE_BASIC_INFO; /* size info, level 0x101 */ 2376 2377 struct file_allocation_info { 2378 __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */ 2379 } __packed; /* size used on disk, for level 0x103 for set, 0x105 for query */ 2380 2381 struct file_end_of_file_info { 2382 __le64 FileSize; /* offset to end of file */ 2383 } __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */ 2384 2385 struct file_alt_name_info { 2386 DECLARE_FLEX_ARRAY(__u8, alt_name); 2387 } __attribute__((packed)); /* level 0x0108 */ 2388 2389 struct file_stream_info { 2390 __le32 number_of_streams; /* BB check sizes and verify location */ 2391 /* followed by info on streams themselves 2392 u64 size; 2393 u64 allocation_size 2394 stream info */ 2395 }; /* level 0x109 */ 2396 2397 struct file_compression_info { 2398 __le64 compressed_size; 2399 __le16 format; 2400 __u8 unit_shift; 2401 __u8 ch_shift; 2402 __u8 cl_shift; 2403 __u8 pad[3]; 2404 } __attribute__((packed)); /* level 0x10b */ 2405 2406 /* POSIX ACL set/query path info structures */ 2407 #define CIFS_ACL_VERSION 1 2408 struct cifs_posix_ace { /* access control entry (ACE) */ 2409 __u8 cifs_e_tag; 2410 __u8 cifs_e_perm; 2411 __le64 cifs_uid; /* or gid */ 2412 } __attribute__((packed)); 2413 2414 struct cifs_posix_acl { /* access control list (ACL) */ 2415 __le16 version; 2416 __le16 access_entry_count; /* access ACL - count of entries */ 2417 __le16 default_entry_count; /* default ACL - count of entries */ 2418 struct cifs_posix_ace ace_array[]; 2419 /* followed by struct cifs_posix_ace default_ace_array[] */ 2420 } __attribute__((packed)); /* level 0x204 */ 2421 2422 /* types of access control entries already defined in posix_acl.h */ 2423 /* #define CIFS_POSIX_ACL_USER_OBJ 0x01 2424 #define CIFS_POSIX_ACL_USER 0x02 2425 #define CIFS_POSIX_ACL_GROUP_OBJ 0x04 2426 #define CIFS_POSIX_ACL_GROUP 0x08 2427 #define CIFS_POSIX_ACL_MASK 0x10 2428 #define CIFS_POSIX_ACL_OTHER 0x20 */ 2429 2430 /* types of perms */ 2431 /* #define CIFS_POSIX_ACL_EXECUTE 0x01 2432 #define CIFS_POSIX_ACL_WRITE 0x02 2433 #define CIFS_POSIX_ACL_READ 0x04 */ 2434 2435 /* end of POSIX ACL definitions */ 2436 2437 /* POSIX Open Flags */ 2438 #define SMB_O_RDONLY 0x1 2439 #define SMB_O_WRONLY 0x2 2440 #define SMB_O_RDWR 0x4 2441 #define SMB_O_CREAT 0x10 2442 #define SMB_O_EXCL 0x20 2443 #define SMB_O_TRUNC 0x40 2444 #define SMB_O_APPEND 0x80 2445 #define SMB_O_SYNC 0x100 2446 #define SMB_O_DIRECTORY 0x200 2447 #define SMB_O_NOFOLLOW 0x400 2448 #define SMB_O_DIRECT 0x800 2449 2450 typedef struct { 2451 __le32 OpenFlags; /* same as NT CreateX */ 2452 __le32 PosixOpenFlags; 2453 __le64 Permissions; 2454 __le16 Level; /* reply level requested (see QPathInfo levels) */ 2455 } __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */ 2456 2457 typedef struct { 2458 __le16 OplockFlags; 2459 __u16 Fid; 2460 __le32 CreateAction; 2461 __le16 ReturnedLevel; 2462 __le16 Pad; 2463 /* struct following varies based on requested level */ 2464 } __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */ 2465 2466 #define SMB_POSIX_UNLINK_FILE_TARGET 0 2467 #define SMB_POSIX_UNLINK_DIRECTORY_TARGET 1 2468 2469 struct unlink_psx_rq { /* level 0x20a SetPathInfo */ 2470 __le16 type; 2471 } __attribute__((packed)); 2472 2473 struct file_internal_info { 2474 __le64 UniqueId; /* inode number */ 2475 } __attribute__((packed)); /* level 0x3ee */ 2476 2477 struct file_mode_info { 2478 __le32 Mode; 2479 } __attribute__((packed)); /* level 0x3f8 */ 2480 2481 struct file_attrib_tag { 2482 __le32 Attribute; 2483 __le32 ReparseTag; 2484 } __attribute__((packed)); /* level 0x40b */ 2485 2486 2487 /********************************************************/ 2488 /* FindFirst/FindNext transact2 data buffer formats */ 2489 /********************************************************/ 2490 2491 typedef struct { 2492 __le32 NextEntryOffset; 2493 __u32 ResumeKey; /* as with FileIndex - no need to convert */ 2494 FILE_UNIX_BASIC_INFO basic; 2495 union { 2496 char __pad; 2497 DECLARE_FLEX_ARRAY(char, FileName); 2498 }; 2499 } __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */ 2500 2501 typedef struct { 2502 __le32 NextEntryOffset; 2503 __u32 FileIndex; 2504 __le64 CreationTime; 2505 __le64 LastAccessTime; 2506 __le64 LastWriteTime; 2507 __le64 ChangeTime; 2508 __le64 EndOfFile; 2509 __le64 AllocationSize; 2510 __le32 ExtFileAttributes; 2511 __le32 FileNameLength; 2512 char FileName[]; 2513 } __attribute__((packed)) FILE_DIRECTORY_INFO; /* level 0x101 FF resp data */ 2514 2515 typedef struct { 2516 __le32 NextEntryOffset; 2517 __u32 FileIndex; 2518 __le64 CreationTime; 2519 __le64 LastAccessTime; 2520 __le64 LastWriteTime; 2521 __le64 ChangeTime; 2522 __le64 EndOfFile; 2523 __le64 AllocationSize; 2524 __le32 ExtFileAttributes; 2525 __le32 FileNameLength; 2526 __le32 EaSize; /* length of the xattrs */ 2527 char FileName[]; 2528 } __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */ 2529 2530 typedef struct { 2531 __le32 NextEntryOffset; 2532 __u32 FileIndex; 2533 __le64 CreationTime; 2534 __le64 LastAccessTime; 2535 __le64 LastWriteTime; 2536 __le64 ChangeTime; 2537 __le64 EndOfFile; 2538 __le64 AllocationSize; 2539 __le32 ExtFileAttributes; 2540 __le32 FileNameLength; 2541 __le32 EaSize; /* EA size */ 2542 __le32 Reserved; 2543 __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/ 2544 char FileName[]; 2545 } __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */ 2546 2547 typedef struct { 2548 __le32 NextEntryOffset; 2549 __u32 FileIndex; 2550 __le64 CreationTime; 2551 __le64 LastAccessTime; 2552 __le64 LastWriteTime; 2553 __le64 ChangeTime; 2554 __le64 EndOfFile; 2555 __le64 AllocationSize; 2556 __le32 ExtFileAttributes; 2557 __le32 FileNameLength; 2558 __le32 EaSize; /* length of the xattrs */ 2559 __u8 ShortNameLength; 2560 __u8 Reserved; 2561 __u8 ShortName[24]; 2562 char FileName[]; 2563 } __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */ 2564 2565 typedef struct { 2566 __u32 ResumeKey; 2567 __le16 CreationDate; /* SMB Date */ 2568 __le16 CreationTime; /* SMB Time */ 2569 __le16 LastAccessDate; 2570 __le16 LastAccessTime; 2571 __le16 LastWriteDate; 2572 __le16 LastWriteTime; 2573 __le32 DataSize; /* File Size (EOF) */ 2574 __le32 AllocationSize; 2575 __le16 Attributes; /* verify not u32 */ 2576 __u8 FileNameLength; 2577 char FileName[]; 2578 } __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */ 2579 2580 2581 struct fea { 2582 unsigned char EA_flags; 2583 __u8 name_len; 2584 __le16 value_len; 2585 char name[]; 2586 /* optionally followed by value */ 2587 } __attribute__((packed)); 2588 /* flags for _FEA.fEA */ 2589 #define FEA_NEEDEA 0x80 /* need EA bit */ 2590 2591 struct fealist { 2592 __le32 list_len; 2593 struct fea list; 2594 } __attribute__((packed)); 2595 2596 /* used to hold an arbitrary blob of data */ 2597 struct data_blob { 2598 __u8 *data; 2599 size_t length; 2600 void (*free) (struct data_blob *data_blob); 2601 } __attribute__((packed)); 2602 2603 2604 #ifdef CONFIG_CIFS_POSIX 2605 /* 2606 For better POSIX semantics from Linux client, (even better 2607 than the existing CIFS Unix Extensions) we need updated PDUs for: 2608 2609 1) PosixCreateX - to set and return the mode, inode#, device info and 2610 perhaps add a CreateDevice - to create Pipes and other special .inodes 2611 Also note POSIX open flags 2612 2) Close - to return the last write time to do cache across close 2613 more safely 2614 3) FindFirst return unique inode number - what about resume key, two 2615 forms short (matches readdir) and full (enough info to cache inodes) 2616 4) Mkdir - set mode 2617 2618 And under consideration: 2619 5) FindClose2 (return nanosecond timestamp ??) 2620 6) Use nanosecond timestamps throughout all time fields if 2621 corresponding attribute flag is set 2622 7) sendfile - handle based copy 2623 2624 what about fixing 64 bit alignment 2625 2626 There are also various legacy SMB/CIFS requests used as is 2627 2628 From existing Lanman and NTLM dialects: 2629 -------------------------------------- 2630 NEGOTIATE 2631 SESSION_SETUP_ANDX (BB which?) 2632 TREE_CONNECT_ANDX (BB which wct?) 2633 TREE_DISCONNECT (BB add volume timestamp on response) 2634 LOGOFF_ANDX 2635 DELETE (note delete open file behavior) 2636 DELETE_DIRECTORY 2637 READ_AND_X 2638 WRITE_AND_X 2639 LOCKING_AND_X (note posix lock semantics) 2640 RENAME (note rename across dirs and open file rename posix behaviors) 2641 NT_RENAME (for hardlinks) Is this good enough for all features? 2642 FIND_CLOSE2 2643 TRANSACTION2 (18 cases) 2644 SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2 2645 (BB verify that never need to set allocation size) 2646 SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via 2647 Unix ext?) 2648 2649 COPY (note support for copy across directories) - FUTURE, OPTIONAL 2650 setting/getting OS/2 EAs - FUTURE (BB can this handle 2651 setting Linux xattrs perfectly) - OPTIONAL 2652 dnotify - FUTURE, OPTIONAL 2653 quota - FUTURE, OPTIONAL 2654 2655 Note that various requests implemented for NT interop such as 2656 NT_TRANSACT (IOCTL) QueryReparseInfo 2657 are unneeded to servers compliant with the CIFS POSIX extensions 2658 2659 From CIFS Unix Extensions: 2660 ------------------------- 2661 T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks 2662 T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2) 2663 T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK) 2664 T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC) BB check for missing 2665 inode fields 2666 Actually a need QUERY_FILE_UNIX_INFO 2667 since has inode num 2668 BB what about a) blksize/blkbits/blocks 2669 b) i_version 2670 c) i_rdev 2671 d) notify mask? 2672 e) generation 2673 f) size_seqcount 2674 T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX 2675 TRANS2_GET_DFS_REFERRAL - OPTIONAL but recommended 2676 T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL 2677 */ 2678 2679 /* xsymlink is a symlink format (used by MacOS) that can be used 2680 to save symlink info in a regular file when 2681 mounted to operating systems that do not 2682 support the cifs Unix extensions or EAs (for xattr 2683 based symlinks). For such a file to be recognized 2684 as containing symlink data: 2685 2686 1) file size must be 1067, 2687 2) signature must begin file data, 2688 3) length field must be set to ASCII representation 2689 of a number which is less than or equal to 1024, 2690 4) md5 must match that of the path data */ 2691 2692 struct xsymlink { 2693 /* 1067 bytes */ 2694 char signature[4]; /* XSym */ /* not null terminated */ 2695 char cr0; /* \n */ 2696 /* ASCII representation of length (4 bytes decimal) terminated by \n not null */ 2697 char length[4]; 2698 char cr1; /* \n */ 2699 /* md5 of valid subset of path ie path[0] through path[length-1] */ 2700 __u8 md5[32]; 2701 char cr2; /* \n */ 2702 /* if room left, then end with \n then 0x20s by convention but not required */ 2703 char path[1024]; 2704 } __attribute__((packed)); 2705 2706 typedef struct file_xattr_info { 2707 /* BB do we need another field for flags? BB */ 2708 __u32 xattr_name_len; 2709 __u32 xattr_value_len; 2710 char xattr_name[]; 2711 /* followed by xattr_value[xattr_value_len], no pad */ 2712 } __packed FILE_XATTR_INFO; /* extended attribute info level 0x205 */ 2713 2714 /* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */ 2715 2716 typedef struct file_chattr_info { 2717 __le64 mask; /* list of all possible attribute bits */ 2718 __le64 mode; /* list of actual attribute bits on this inode */ 2719 } __packed FILE_CHATTR_INFO; /* ext attributes (chattr, chflags) level 0x206 */ 2720 #endif /* POSIX */ 2721 #endif /* _CIFSPDU_H */ 2722