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smb2pdu.h

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linux-6.19.14/fs/smb/common/smb2pdu.h C
   1/* SPDX-License-Identifier: LGPL-2.1 */
   2#ifndef _COMMON_SMB2PDU_H
   3#define _COMMON_SMB2PDU_H
   4
   5/*
   6 * Note that, due to trying to use names similar to the protocol specifications,
   7 * there are many mixed case field names in the structures below.  Although
   8 * this does not match typical Linux kernel style, it is necessary to be
   9 * able to match against the protocol specification.
  10 *
  11 * SMB2 commands
  12 * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
  13 * (ie no useful data other than the SMB error code itself) and are marked such.
  14 * Knowing this helps avoid response buffer allocations and copy in some cases.
  15 */
  16
  17/* List of commands in host endian */
  18#define SMB2_NEGOTIATE_HE	0x0000
  19#define SMB2_SESSION_SETUP_HE	0x0001
  20#define SMB2_LOGOFF_HE		0x0002 /* trivial request/resp */
  21#define SMB2_TREE_CONNECT_HE	0x0003
  22#define SMB2_TREE_DISCONNECT_HE	0x0004 /* trivial req/resp */
  23#define SMB2_CREATE_HE		0x0005
  24#define SMB2_CLOSE_HE		0x0006
  25#define SMB2_FLUSH_HE		0x0007 /* trivial resp */
  26#define SMB2_READ_HE		0x0008
  27#define SMB2_WRITE_HE		0x0009
  28#define SMB2_LOCK_HE		0x000A
  29#define SMB2_IOCTL_HE		0x000B
  30#define SMB2_CANCEL_HE		0x000C
  31#define SMB2_ECHO_HE		0x000D
  32#define SMB2_QUERY_DIRECTORY_HE	0x000E
  33#define SMB2_CHANGE_NOTIFY_HE	0x000F
  34#define SMB2_QUERY_INFO_HE	0x0010
  35#define SMB2_SET_INFO_HE	0x0011
  36#define SMB2_OPLOCK_BREAK_HE	0x0012
  37#define SMB2_SERVER_TO_CLIENT_NOTIFICATION 0x0013
  38
  39/* The same list in little endian */
  40#define SMB2_NEGOTIATE		cpu_to_le16(SMB2_NEGOTIATE_HE)
  41#define SMB2_SESSION_SETUP	cpu_to_le16(SMB2_SESSION_SETUP_HE)
  42#define SMB2_LOGOFF		cpu_to_le16(SMB2_LOGOFF_HE)
  43#define SMB2_TREE_CONNECT	cpu_to_le16(SMB2_TREE_CONNECT_HE)
  44#define SMB2_TREE_DISCONNECT	cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
  45#define SMB2_CREATE		cpu_to_le16(SMB2_CREATE_HE)
  46#define SMB2_CLOSE		cpu_to_le16(SMB2_CLOSE_HE)
  47#define SMB2_FLUSH		cpu_to_le16(SMB2_FLUSH_HE)
  48#define SMB2_READ		cpu_to_le16(SMB2_READ_HE)
  49#define SMB2_WRITE		cpu_to_le16(SMB2_WRITE_HE)
  50#define SMB2_LOCK		cpu_to_le16(SMB2_LOCK_HE)
  51#define SMB2_IOCTL		cpu_to_le16(SMB2_IOCTL_HE)
  52#define SMB2_CANCEL		cpu_to_le16(SMB2_CANCEL_HE)
  53#define SMB2_ECHO		cpu_to_le16(SMB2_ECHO_HE)
  54#define SMB2_QUERY_DIRECTORY	cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
  55#define SMB2_CHANGE_NOTIFY	cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
  56#define SMB2_QUERY_INFO		cpu_to_le16(SMB2_QUERY_INFO_HE)
  57#define SMB2_SET_INFO		cpu_to_le16(SMB2_SET_INFO_HE)
  58#define SMB2_OPLOCK_BREAK	cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
  59
  60#define SMB2_INTERNAL_CMD	cpu_to_le16(0xFFFF)
  61
  62#define NUMBER_OF_SMB2_COMMANDS	0x0013
  63
  64/*
  65 * Size of the session key (crypto key encrypted with the password
  66 */
  67#define SMB2_NTLMV2_SESSKEY_SIZE	16
  68#define SMB2_SIGNATURE_SIZE		16
  69#define SMB2_HMACSHA256_SIZE		32
  70#define SMB2_CMACAES_SIZE		16
  71#define SMB3_GCM128_CRYPTKEY_SIZE	16
  72#define SMB3_GCM256_CRYPTKEY_SIZE	32
  73
  74/*
  75 * Size of the smb3 encryption/decryption keys
  76 * This size is big enough to store any cipher key types.
  77 */
  78#define SMB3_ENC_DEC_KEY_SIZE		32
  79
  80/*
  81 * Size of the smb3 signing key
  82 */
  83#define SMB3_SIGN_KEY_SIZE		16
  84
  85#define CIFS_CLIENT_CHALLENGE_SIZE	8
  86
  87/* Maximum buffer size value we can send with 1 credit */
  88#define SMB2_MAX_BUFFER_SIZE 65536
  89
  90/*
  91 * The default wsize is 1M for SMB2 (and for some CIFS cases).
  92 * find_get_pages seems to return a maximum of 256
  93 * pages in a single call. With PAGE_SIZE == 4k, this means we can
  94 * fill a single wsize request with a single call.
  95 */
  96#define SMB3_DEFAULT_IOSIZE (4 * 1024 * 1024)
  97
  98/* According to MS-SMB2 specification The minimum recommended value is 65536.*/
  99#define CIFS_MIN_DEFAULT_IOSIZE (65536)
 100
 101/*
 102 * SMB2 Header Definition
 103 *
 104 * "MBZ" :  Must be Zero
 105 * "BB"  :  BugBug, Something to check/review/analyze later
 106 * "PDU" :  "Protocol Data Unit" (ie a network "frame")
 107 *
 108 */
 109
 110#define __SMB2_HEADER_STRUCTURE_SIZE	64
 111#define SMB2_HEADER_STRUCTURE_SIZE				\
 112	cpu_to_le16(__SMB2_HEADER_STRUCTURE_SIZE)
 113
 114#define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 115#define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
 116#define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
 117
 118/*
 119 *	SMB2 flag definitions
 120 */
 121#define SMB2_FLAGS_SERVER_TO_REDIR	cpu_to_le32(0x00000001)
 122#define SMB2_FLAGS_ASYNC_COMMAND	cpu_to_le32(0x00000002)
 123#define SMB2_FLAGS_RELATED_OPERATIONS	cpu_to_le32(0x00000004)
 124#define SMB2_FLAGS_SIGNED		cpu_to_le32(0x00000008)
 125#define SMB2_FLAGS_PRIORITY_MASK	cpu_to_le32(0x00000070) /* SMB3.1.1 */
 126#define SMB2_FLAGS_DFS_OPERATIONS	cpu_to_le32(0x10000000)
 127#define SMB2_FLAGS_REPLAY_OPERATION	cpu_to_le32(0x20000000) /* SMB3 & up */
 128
 129/*
 130 *	Definitions for SMB2 Protocol Data Units (network frames)
 131 *
 132 *  See MS-SMB2.PDF specification for protocol details.
 133 *  The Naming convention is the lower case version of the SMB2
 134 *  command code name for the struct. Note that structures must be packed.
 135 *
 136 */
 137
 138/* See MS-SMB2 section 2.2.1 */
 139struct smb2_hdr {
 140	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
 141	__le16 StructureSize;	/* 64 */
 142	__le16 CreditCharge;	/* MBZ */
 143	__le32 Status;		/* Error from server */
 144	__le16 Command;
 145	__le16 CreditRequest;	/* CreditResponse */
 146	__le32 Flags;
 147	__le32 NextCommand;
 148	__le64 MessageId;
 149	union {
 150		struct {
 151			__le32 ProcessId;
 152			__le32  TreeId;
 153		} __packed SyncId;
 154		__le64  AsyncId;
 155	} __packed Id;
 156	__le64  SessionId;
 157	__u8   Signature[16];
 158} __packed;
 159
 160struct smb3_hdr_req {
 161	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
 162	__le16 StructureSize;	/* 64 */
 163	__le16 CreditCharge;	/* MBZ */
 164	__le16 ChannelSequence; /* See MS-SMB2 3.2.4.1 and 3.2.7.1 */
 165	__le16 Reserved;
 166	__le16 Command;
 167	__le16 CreditRequest;	/* CreditResponse */
 168	__le32 Flags;
 169	__le32 NextCommand;
 170	__le64 MessageId;
 171	union {
 172		struct {
 173			__le32 ProcessId;
 174			__le32  TreeId;
 175		} __packed SyncId;
 176		__le64  AsyncId;
 177	} __packed Id;
 178	__le64  SessionId;
 179	__u8   Signature[16];
 180} __packed;
 181
 182struct smb2_pdu {
 183	struct smb2_hdr hdr;
 184	__le16 StructureSize2; /* size of wct area (varies, request specific) */
 185} __packed;
 186
 187#define SMB2_ERROR_STRUCTURE_SIZE2	9
 188#define SMB2_ERROR_STRUCTURE_SIZE2_LE	cpu_to_le16(SMB2_ERROR_STRUCTURE_SIZE2)
 189
 190struct smb2_err_rsp {
 191	struct smb2_hdr hdr;
 192	__le16 StructureSize;
 193	__u8   ErrorContextCount;
 194	__u8   Reserved;
 195	__le32 ByteCount;  /* even if zero, at least one byte follows */
 196	__u8   ErrorData[];  /* variable length */
 197} __packed;
 198
 199#define SMB3_AES_CCM_NONCE 11
 200#define SMB3_AES_GCM_NONCE 12
 201
 202/* Transform flags (for 3.0 dialect this flag indicates CCM */
 203#define TRANSFORM_FLAG_ENCRYPTED	0x0001
 204struct smb2_transform_hdr {
 205	__le32 ProtocolId;	/* 0xFD 'S' 'M' 'B' */
 206	__u8   Signature[16];
 207	__u8   Nonce[16];
 208	__le32 OriginalMessageSize;
 209	__u16  Reserved1;
 210	__le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
 211	__le64  SessionId;
 212} __packed;
 213
 214/*
 215 * These are simplified versions from the spec, as we don't need a fully fledged
 216 * form of both unchained and chained structs.
 217 *
 218 * Moreover, even in chained compressed payloads, the initial compression header
 219 * has the form of the unchained one -- i.e. it never has the
 220 * OriginalPayloadSize field and ::Offset field always represent an offset
 221 * (instead of a length, as it is in the chained header).
 222 *
 223 * See MS-SMB2 2.2.42 for more details.
 224 */
 225#define SMB2_COMPRESSION_FLAG_NONE	0x0000
 226#define SMB2_COMPRESSION_FLAG_CHAINED	0x0001
 227
 228struct smb2_compression_hdr {
 229	__le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */
 230	__le32 OriginalCompressedSegmentSize;
 231	__le16 CompressionAlgorithm;
 232	__le16 Flags;
 233	__le32 Offset; /* this is the size of the uncompressed SMB2 header below */
 234	/* uncompressed SMB2 header (READ or WRITE) goes here */
 235	/* compressed data goes here */
 236} __packed;
 237
 238/*
 239 * ... OTOH, set compression payload header to always have OriginalPayloadSize
 240 * as it's easier to pass the struct size minus sizeof(OriginalPayloadSize)
 241 * than to juggle around the header/data memory.
 242 */
 243struct smb2_compression_payload_hdr {
 244	__le16	CompressionAlgorithm;
 245	__le16	Flags;
 246	__le32	Length; /* length of compressed playload including field below if present */
 247	__le32 OriginalPayloadSize; /* accounted when LZNT1, LZ77, LZ77+Huffman */
 248} __packed;
 249
 250struct smb2_compression_pattern_v1 {
 251	__u8	Pattern;
 252	__u8	Reserved1;
 253	__le16	Reserved2;
 254	__le32	Repetitions;
 255} __packed;
 256
 257/* See MS-SMB2 section 2.2.9.2 */
 258/* Context Types */
 259#define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
 260#define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
 261
 262struct tree_connect_contexts {
 263	__le16 ContextType;
 264	__le16 DataLength;
 265	__le32 Reserved;
 266	__u8   Data[];
 267} __packed;
 268
 269/* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
 270struct smb3_blob_data {
 271	__le16 BlobSize;
 272	__u8   BlobData[];
 273} __packed;
 274
 275/* Valid values for Attr */
 276#define SE_GROUP_MANDATORY		0x00000001
 277#define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
 278#define SE_GROUP_ENABLED		0x00000004
 279#define SE_GROUP_OWNER			0x00000008
 280#define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
 281#define SE_GROUP_INTEGRITY		0x00000020
 282#define SE_GROUP_INTEGRITY_ENABLED	0x00000040
 283#define SE_GROUP_RESOURCE		0x20000000
 284#define SE_GROUP_LOGON_ID		0xC0000000
 285
 286struct sid_array_data {
 287	__le16 SidAttrCount;
 288	/* SidAttrList - array of sid_attr_data structs */
 289} __packed;
 290
 291/* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
 292struct sid_attr_data {
 293	__le16 BlobSize;
 294	__u8 BlobData[];
 295	/* __le32 Attr */
 296} __packed;
 297
 298/*
 299 * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
 300 * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
 301 */
 302
 303struct privilege_array_data {
 304	__le16 PrivilegeCount;
 305	/* array of privilege_data structs */
 306} __packed;
 307
 308struct remoted_identity_tcon_context {
 309	__le16 TicketType; /* must be 0x0001 */
 310	__le16 TicketSize; /* total size of this struct */
 311	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
 312	__le16 UserName; /* offset to null terminated Unicode username string */
 313	__le16 Domain; /* offset to null terminated Unicode domain name */
 314	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
 315	__le16 RestrictedGroups; /* similar to above */
 316	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
 317	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
 318	__le16 Owner; /* offset to BLOB_DATA struct */
 319	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
 320	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
 321	__le16 UserClaims; /* offset to BLOB_DATA struct */
 322	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
 323	__u8   TicketInfo[]; /* variable length buf - remoted identity data */
 324} __packed;
 325
 326struct smb2_tree_connect_req_extension {
 327	__le32 TreeConnectContextOffset;
 328	__le16 TreeConnectContextCount;
 329	__u8  Reserved[10];
 330	__u8  PathName[]; /* variable sized array */
 331	/* followed by array of TreeConnectContexts */
 332} __packed;
 333
 334/* Flags/Reserved for SMB3.1.1 */
 335#define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
 336#define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
 337#define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
 338
 339struct smb2_tree_connect_req {
 340	struct smb2_hdr hdr;
 341	__le16 StructureSize;	/* Must be 9 */
 342	__le16 Flags;		/* Flags in SMB3.1.1 */
 343	__le16 PathOffset;
 344	__le16 PathLength;
 345	__u8   Buffer[];	/* variable length */
 346} __packed;
 347
 348/* Possible ShareType values */
 349#define SMB2_SHARE_TYPE_DISK	0x01
 350#define SMB2_SHARE_TYPE_PIPE	0x02
 351#define	SMB2_SHARE_TYPE_PRINT	0x03
 352
 353/*
 354 * Possible ShareFlags - exactly one and only one of the first 4 caching flags
 355 * must be set (any of the remaining, SHI1005, flags may be set individually
 356 * or in combination.
 357 */
 358#define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
 359#define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
 360#define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
 361#define SMB2_SHAREFLAG_NO_CACHING			0x00000030
 362#define SHI1005_FLAGS_DFS				0x00000001
 363#define SHI1005_FLAGS_DFS_ROOT				0x00000002
 364#define SMB2_SHAREFLAG_RESTRICT_EXCLUSIVE_OPENS		0x00000100
 365#define SMB2_SHAREFLAG_FORCE_SHARED_DELETE		0x00000200
 366#define SMB2_SHAREFLAG_ALLOW_NAMESPACE_CACHING		0x00000400
 367#define SMB2_SHAREFLAG_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
 368#define SMB2_SHAREFLAG_FORCE_LEVELII_OPLOCK		0x00001000
 369#define SMB2_SHAREFLAG_ENABLE_HASH_V1			0x00002000
 370#define SMB2_SHAREFLAG_ENABLE_HASH_V2			0x00004000
 371#define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
 372#define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
 373#define SMB2_SHAREFLAG_COMPRESS_DATA			0x00100000 /* 3.1.1 */
 374#define SMB2_SHAREFLAG_ISOLATED_TRANSPORT		0x00200000
 375#define SHI1005_FLAGS_ALL				0x0034FF33
 376
 377/* Possible share capabilities */
 378#define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
 379#define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
 380#define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
 381#define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
 382#define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
 383#define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
 384
 385struct smb2_tree_connect_rsp {
 386	struct smb2_hdr hdr;
 387	__le16 StructureSize;	/* Must be 16 */
 388	__u8   ShareType;	/* see below */
 389	__u8   Reserved;
 390	__le32 ShareFlags;	/* see below */
 391	__le32 Capabilities;	/* see below */
 392	__le32 MaximalAccess;
 393} __packed;
 394
 395struct smb2_tree_disconnect_req {
 396	struct smb2_hdr hdr;
 397	__le16 StructureSize;	/* Must be 4 */
 398	__le16 Reserved;
 399} __packed;
 400
 401struct smb2_tree_disconnect_rsp {
 402	struct smb2_hdr hdr;
 403	__le16 StructureSize;	/* Must be 4 */
 404	__le16 Reserved;
 405} __packed;
 406
 407
 408/*
 409 * SMB2_NEGOTIATE_PROTOCOL  See MS-SMB2 section 2.2.3
 410 */
 411/* SecurityMode flags */
 412#define	SMB2_NEGOTIATE_SIGNING_ENABLED     0x0001
 413#define	SMB2_NEGOTIATE_SIGNING_ENABLED_LE  cpu_to_le16(0x0001)
 414#define SMB2_NEGOTIATE_SIGNING_REQUIRED	   0x0002
 415#define SMB2_NEGOTIATE_SIGNING_REQUIRED_LE cpu_to_le16(0x0002)
 416#define SMB2_SEC_MODE_FLAGS_ALL            0x0003
 417
 418/* Capabilities flags */
 419#define SMB2_GLOBAL_CAP_DFS		0x00000001
 420#define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
 421#define SMB2_GLOBAL_CAP_LARGE_MTU	0x00000004 /* Resp only New to SMB2.1 */
 422#define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
 423#define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
 424#define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
 425#define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
 426#define SMB2_GLOBAL_CAP_NOTIFICATIONS	0x00000080 /* New to SMB3.1.1 */
 427/* Internal types */
 428#define SMB2_NT_FIND			0x00100000
 429#define SMB2_LARGE_FILES		0x00200000
 430
 431#define SMB2_CLIENT_GUID_SIZE		16
 432#define SMB2_CREATE_GUID_SIZE		16
 433
 434/* Dialects */
 435#define SMB10_PROT_ID  0x0000 /* local only, not sent on wire w/CIFS negprot */
 436#define SMB20_PROT_ID  0x0202
 437#define SMB21_PROT_ID  0x0210
 438#define SMB2X_PROT_ID  0x02FF
 439#define SMB30_PROT_ID  0x0300
 440#define SMB302_PROT_ID 0x0302
 441#define SMB311_PROT_ID 0x0311
 442#define BAD_PROT_ID    0xFFFF
 443
 444#define SMB311_SALT_SIZE			32
 445/* Hash Algorithm Types */
 446#define SMB2_PREAUTH_INTEGRITY_SHA512	cpu_to_le16(0x0001)
 447#define SMB2_PREAUTH_HASH_SIZE 64
 448
 449/* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
 450#define SMB2_PREAUTH_INTEGRITY_CAPABILITIES	cpu_to_le16(1)
 451#define SMB2_ENCRYPTION_CAPABILITIES		cpu_to_le16(2)
 452#define SMB2_COMPRESSION_CAPABILITIES		cpu_to_le16(3)
 453#define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID	cpu_to_le16(5)
 454#define SMB2_TRANSPORT_CAPABILITIES		cpu_to_le16(6)
 455#define SMB2_RDMA_TRANSFORM_CAPABILITIES	cpu_to_le16(7)
 456#define SMB2_SIGNING_CAPABILITIES		cpu_to_le16(8)
 457#define SMB2_POSIX_EXTENSIONS_AVAILABLE		cpu_to_le16(0x100)
 458
 459struct smb2_neg_context {
 460	__le16	ContextType;
 461	__le16	DataLength;
 462	__le32	Reserved;
 463	/* Followed by array of data. NOTE: some servers require padding to 8 byte boundary */
 464} __packed;
 465
 466/*
 467 * SaltLength that the server send can be zero, so the only three required
 468 * fields (all __le16) end up six bytes total, so the minimum context data len
 469 * in the response is six bytes which accounts for
 470 *
 471 *      HashAlgorithmCount, SaltLength, and 1 HashAlgorithm.
 472 */
 473#define MIN_PREAUTH_CTXT_DATA_LEN 6
 474
 475struct smb2_preauth_neg_context {
 476	__le16	ContextType; /* 1 */
 477	__le16	DataLength;
 478	__le32	Reserved;
 479	__le16	HashAlgorithmCount; /* 1 */
 480	__le16	SaltLength;
 481	__le16	HashAlgorithms; /* HashAlgorithms[0] since only one defined */
 482	__u8	Salt[SMB311_SALT_SIZE];
 483} __packed;
 484
 485/* Encryption Algorithms Ciphers */
 486#define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
 487#define SMB2_ENCRYPTION_AES128_GCM	cpu_to_le16(0x0002)
 488#define SMB2_ENCRYPTION_AES256_CCM      cpu_to_le16(0x0003)
 489#define SMB2_ENCRYPTION_AES256_GCM      cpu_to_le16(0x0004)
 490
 491/* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
 492#define MIN_ENCRYPT_CTXT_DATA_LEN	4
 493struct smb2_encryption_neg_context {
 494	__le16	ContextType; /* 2 */
 495	__le16	DataLength;
 496	__le32	Reserved;
 497	/* CipherCount usually 2, but can be 3 when AES256-GCM enabled */
 498	__le16	CipherCount; /* AES128-GCM and AES128-CCM by default */
 499	__le16	Ciphers[];
 500} __packed;
 501
 502/* See MS-SMB2 2.2.3.1.3 */
 503#define SMB3_COMPRESS_NONE	cpu_to_le16(0x0000)
 504#define SMB3_COMPRESS_LZNT1	cpu_to_le16(0x0001)
 505#define SMB3_COMPRESS_LZ77	cpu_to_le16(0x0002)
 506#define SMB3_COMPRESS_LZ77_HUFF	cpu_to_le16(0x0003)
 507/* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */
 508#define SMB3_COMPRESS_PATTERN	cpu_to_le16(0x0004) /* Pattern_V1 */
 509#define SMB3_COMPRESS_LZ4	cpu_to_le16(0x0005)
 510
 511/* Compression Flags */
 512#define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE		cpu_to_le32(0x00000000)
 513#define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED	cpu_to_le32(0x00000001)
 514
 515struct smb2_compression_capabilities_context {
 516	__le16	ContextType; /* 3 */
 517	__le16  DataLength;
 518	__le32	Reserved;
 519	__le16	CompressionAlgorithmCount;
 520	__le16	Padding;
 521	__le32	Flags;
 522	__le16	CompressionAlgorithms[3];
 523	__u16	Pad;  /* Some servers require pad to DataLen multiple of 8 */
 524	/* Check if pad needed */
 525} __packed;
 526
 527/*
 528 * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
 529 * Its struct simply contains NetName, an array of Unicode characters
 530 */
 531struct smb2_netname_neg_context {
 532	__le16	ContextType; /* 5 */
 533	__le16	DataLength;
 534	__le32	Reserved;
 535	__le16	NetName[]; /* hostname of target converted to UCS-2 */
 536} __packed;
 537
 538/*
 539 * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
 540 * and 2.2.4.1.5
 541 */
 542
 543/* Flags */
 544#define SMB2_ACCEPT_TRANSPORT_LEVEL_SECURITY	0x00000001
 545
 546struct smb2_transport_capabilities_context {
 547	__le16	ContextType; /* 6 */
 548	__le16  DataLength;
 549	__u32	Reserved;
 550	__le32	Flags;
 551	__u32	Pad;
 552} __packed;
 553
 554/*
 555 * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
 556 * and 2.2.4.1.6
 557 */
 558
 559/* RDMA Transform IDs */
 560#define SMB2_RDMA_TRANSFORM_NONE	0x0000
 561#define SMB2_RDMA_TRANSFORM_ENCRYPTION	0x0001
 562#define SMB2_RDMA_TRANSFORM_SIGNING	0x0002
 563
 564struct smb2_rdma_transform_capabilities_context {
 565	__le16	ContextType; /* 7 */
 566	__le16  DataLength;
 567	__u32	Reserved;
 568	__le16	TransformCount;
 569	__u16	Reserved1;
 570	__u32	Reserved2;
 571	__le16	RDMATransformIds[];
 572} __packed;
 573
 574/*
 575 * For signing capabilities context see MS-SMB2 2.2.3.1.7
 576 * and 2.2.4.1.7
 577 */
 578
 579/* Signing algorithms */
 580#define SIGNING_ALG_HMAC_SHA256    0
 581#define SIGNING_ALG_HMAC_SHA256_LE cpu_to_le16(0)
 582#define SIGNING_ALG_AES_CMAC       1
 583#define SIGNING_ALG_AES_CMAC_LE    cpu_to_le16(1)
 584#define SIGNING_ALG_AES_GMAC       2
 585#define SIGNING_ALG_AES_GMAC_LE    cpu_to_le16(2)
 586
 587struct smb2_signing_capabilities {
 588	__le16	ContextType; /* 8 */
 589	__le16	DataLength;
 590	__le32	Reserved;
 591	__le16	SigningAlgorithmCount;
 592	__le16	SigningAlgorithms[];
 593	/*  Followed by padding to 8 byte boundary (required by some servers) */
 594} __packed;
 595
 596#define POSIX_CTXT_DATA_LEN	16
 597struct smb2_posix_neg_context {
 598	__le16	ContextType; /* 0x100 */
 599	__le16	DataLength;
 600	__le32	Reserved;
 601	__u8	Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
 602} __packed;
 603
 604struct smb2_negotiate_req {
 605	struct smb2_hdr hdr;
 606	__le16 StructureSize; /* Must be 36 */
 607	__le16 DialectCount;
 608	__le16 SecurityMode;
 609	__le16 Reserved;	/* MBZ */
 610	__le32 Capabilities;
 611	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
 612	/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
 613	__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
 614	__le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
 615	__le16 Reserved2;
 616	__le16 Dialects[];
 617} __packed;
 618
 619struct smb2_negotiate_rsp {
 620	struct smb2_hdr hdr;
 621	__le16 StructureSize;	/* Must be 65 */
 622	__le16 SecurityMode;
 623	__le16 DialectRevision;
 624	__le16 NegotiateContextCount;	/* Prior to SMB3.1.1 was Reserved & MBZ */
 625	__u8   ServerGUID[16];
 626	__le32 Capabilities;
 627	__le32 MaxTransactSize;
 628	__le32 MaxReadSize;
 629	__le32 MaxWriteSize;
 630	__le64 SystemTime;	/* MBZ */
 631	__le64 ServerStartTime;
 632	__le16 SecurityBufferOffset;
 633	__le16 SecurityBufferLength;
 634	__le32 NegotiateContextOffset;	/* Pre:SMB3.1.1 was reserved/ignored */
 635	__u8   Buffer[];	/* variable length GSS security buffer */
 636} __packed;
 637
 638
 639/*
 640 * SMB2_SESSION_SETUP  See MS-SMB2 section 2.2.5
 641 */
 642/* Flags */
 643#define SMB2_SESSION_REQ_FLAG_BINDING		0x01
 644#define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA	0x04
 645
 646struct smb2_sess_setup_req {
 647	struct smb2_hdr hdr;
 648	__le16 StructureSize; /* Must be 25 */
 649	__u8   Flags;
 650	__u8   SecurityMode;
 651	__le32 Capabilities;
 652	__le32 Channel;
 653	__le16 SecurityBufferOffset;
 654	__le16 SecurityBufferLength;
 655	__le64 PreviousSessionId;
 656	__u8   Buffer[];	/* variable length GSS security buffer */
 657} __packed;
 658
 659/* Currently defined SessionFlags */
 660#define SMB2_SESSION_FLAG_IS_GUEST        0x0001
 661#define SMB2_SESSION_FLAG_IS_GUEST_LE     cpu_to_le16(0x0001)
 662#define SMB2_SESSION_FLAG_IS_NULL         0x0002
 663#define SMB2_SESSION_FLAG_IS_NULL_LE      cpu_to_le16(0x0002)
 664#define SMB2_SESSION_FLAG_ENCRYPT_DATA    0x0004
 665#define SMB2_SESSION_FLAG_ENCRYPT_DATA_LE cpu_to_le16(0x0004)
 666
 667struct smb2_sess_setup_rsp {
 668	struct smb2_hdr hdr;
 669	__le16 StructureSize; /* Must be 9 */
 670	__le16 SessionFlags;
 671	__le16 SecurityBufferOffset;
 672	__le16 SecurityBufferLength;
 673	__u8   Buffer[];	/* variable length GSS security buffer */
 674} __packed;
 675
 676
 677/*
 678 * SMB2_LOGOFF  See MS-SMB2 section 2.2.7
 679 */
 680struct smb2_logoff_req {
 681	struct smb2_hdr hdr;
 682	__le16 StructureSize;	/* Must be 4 */
 683	__le16 Reserved;
 684} __packed;
 685
 686struct smb2_logoff_rsp {
 687	struct smb2_hdr hdr;
 688	__le16 StructureSize;	/* Must be 4 */
 689	__le16 Reserved;
 690} __packed;
 691
 692
 693/*
 694 * SMB2_CLOSE  See MS-SMB2 section 2.2.15
 695 */
 696/* Currently defined values for close flags */
 697#define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
 698struct smb2_close_req {
 699	struct smb2_hdr hdr;
 700	__le16 StructureSize;	/* Must be 24 */
 701	__le16 Flags;
 702	__le32 Reserved;
 703	__u64  PersistentFileId; /* opaque endianness */
 704	__u64  VolatileFileId; /* opaque endianness */
 705} __packed;
 706
 707/*
 708 * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
 709 */
 710#define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
 711
 712struct smb2_close_rsp {
 713	struct smb2_hdr hdr;
 714	__le16 StructureSize; /* 60 */
 715	__le16 Flags;
 716	__le32 Reserved;
 717	struct_group_attr(network_open_info, __packed,
 718		__le64 CreationTime;
 719		__le64 LastAccessTime;
 720		__le64 LastWriteTime;
 721		__le64 ChangeTime;
 722		/* Beginning of FILE_STANDARD_INFO equivalent */
 723		__le64 AllocationSize;
 724		__le64 EndOfFile;
 725		__le32 Attributes;
 726	);
 727} __packed;
 728
 729
 730/*
 731 * SMB2_READ  See MS-SMB2 section 2.2.19
 732 */
 733/* For read request Flags field below, following flag is defined for SMB3.02 */
 734#define SMB2_READFLAG_READ_UNBUFFERED	0x01
 735#define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
 736
 737/* Channel field for read and write: exactly one of following flags can be set*/
 738#define SMB2_CHANNEL_NONE               cpu_to_le32(0x00000000)
 739#define SMB2_CHANNEL_RDMA_V1            cpu_to_le32(0x00000001)
 740#define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002)
 741#define SMB2_CHANNEL_RDMA_TRANSFORM     cpu_to_le32(0x00000003)
 742
 743/* SMB2 read request without RFC1001 length at the beginning */
 744struct smb2_read_req {
 745	struct smb2_hdr hdr;
 746	__le16 StructureSize; /* Must be 49 */
 747	__u8   Padding; /* offset from start of SMB2 header to place read */
 748	__u8   Flags; /* MBZ unless SMB3.02 or later */
 749	__le32 Length;
 750	__le64 Offset;
 751	__u64  PersistentFileId;
 752	__u64  VolatileFileId;
 753	__le32 MinimumCount;
 754	__le32 Channel; /* MBZ except for SMB3 or later */
 755	__le32 RemainingBytes;
 756	__le16 ReadChannelInfoOffset;
 757	__le16 ReadChannelInfoLength;
 758	__u8   Buffer[];
 759} __packed;
 760
 761/* Read flags */
 762#define SMB2_READFLAG_RESPONSE_NONE            cpu_to_le32(0x00000000)
 763#define SMB2_READFLAG_RESPONSE_RDMA_TRANSFORM  cpu_to_le32(0x00000001)
 764
 765struct smb2_read_rsp {
 766	struct smb2_hdr hdr;
 767	__le16 StructureSize; /* Must be 17 */
 768	__u8   DataOffset;
 769	__u8   Reserved;
 770	__le32 DataLength;
 771	__le32 DataRemaining;
 772	__le32 Flags;
 773	__u8   Buffer[];
 774} __packed;
 775
 776
 777/*
 778 * SMB2_WRITE  See MS-SMB2 section 2.2.21
 779 */
 780/* For write request Flags field below the following flags are defined: */
 781#define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
 782#define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */
 783
 784struct smb2_write_req {
 785	struct smb2_hdr hdr;
 786	__le16 StructureSize; /* Must be 49 */
 787	__le16 DataOffset; /* offset from start of SMB2 header to write data */
 788	__le32 Length;
 789	__le64 Offset;
 790	__u64  PersistentFileId; /* opaque endianness */
 791	__u64  VolatileFileId; /* opaque endianness */
 792	__le32 Channel; /* MBZ unless SMB3.02 or later */
 793	__le32 RemainingBytes;
 794	__le16 WriteChannelInfoOffset;
 795	__le16 WriteChannelInfoLength;
 796	__le32 Flags;
 797	__u8   Buffer[];
 798} __packed;
 799
 800struct smb2_write_rsp {
 801	struct smb2_hdr hdr;
 802	__le16 StructureSize; /* Must be 17 */
 803	__u8   DataOffset;
 804	__u8   Reserved;
 805	__le32 DataLength;
 806	__le32 DataRemaining;
 807	__u32  Reserved2;
 808	__u8   Buffer[];
 809} __packed;
 810
 811
 812/*
 813 * SMB2_FLUSH  See MS-SMB2 section 2.2.17
 814 */
 815struct smb2_flush_req {
 816	struct smb2_hdr hdr;
 817	__le16 StructureSize;	/* Must be 24 */
 818	__le16 Reserved1;
 819	__le32 Reserved2;
 820	__u64  PersistentFileId;
 821	__u64  VolatileFileId;
 822} __packed;
 823
 824struct smb2_flush_rsp {
 825	struct smb2_hdr hdr;
 826	__le16 StructureSize;
 827	__le16 Reserved;
 828} __packed;
 829
 830#define SMB2_LOCKFLAG_SHARED		0x0001
 831#define SMB2_LOCKFLAG_EXCLUSIVE		0x0002
 832#define SMB2_LOCKFLAG_UNLOCK		0x0004
 833#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
 834#define SMB2_LOCKFLAG_MASK		0x0007
 835
 836struct smb2_lock_element {
 837	__le64 Offset;
 838	__le64 Length;
 839	__le32 Flags;
 840	__le32 Reserved;
 841} __packed;
 842
 843struct smb2_lock_req {
 844	struct smb2_hdr hdr;
 845	__le16 StructureSize; /* Must be 48 */
 846	__le16 LockCount;
 847	/*
 848	 * The least significant four bits are the index, the other 28 bits are
 849	 * the lock sequence number (0 to 64). See MS-SMB2 2.2.26
 850	 */
 851	__le32 LockSequenceNumber;
 852	__u64  PersistentFileId;
 853	__u64  VolatileFileId;
 854	/* Followed by at least one */
 855	union {
 856		struct smb2_lock_element lock;
 857		DECLARE_FLEX_ARRAY(struct smb2_lock_element, locks);
 858	};
 859} __packed;
 860
 861struct smb2_lock_rsp {
 862	struct smb2_hdr hdr;
 863	__le16 StructureSize; /* Must be 4 */
 864	__le16 Reserved;
 865} __packed;
 866
 867struct smb2_echo_req {
 868	struct smb2_hdr hdr;
 869	__le16 StructureSize;	/* Must be 4 */
 870	__u16  Reserved;
 871} __packed;
 872
 873struct smb2_echo_rsp {
 874	struct smb2_hdr hdr;
 875	__le16 StructureSize;	/* Must be 4 */
 876	__u16  Reserved;
 877} __packed;
 878
 879/*
 880 * Valid FileInformation classes for query directory
 881 *
 882 * Note that these are a subset of the (file) QUERY_INFO levels defined
 883 * later in this file (but since QUERY_DIRECTORY uses equivalent numbers
 884 * we do not redefine them here)
 885 *
 886 * FileDirectoryInfomation		0x01
 887 * FileFullDirectoryInformation		0x02
 888 * FileIdFullDirectoryInformation	0x26
 889 * FileBothDirectoryInformation		0x03
 890 * FileIdBothDirectoryInformation	0x25
 891 * FileNamesInformation			0x0C
 892 * FileIdExtdDirectoryInformation	0x3C
 893 */
 894
 895/* search (query_directory) Flags field */
 896#define SMB2_RESTART_SCANS		0x01
 897#define SMB2_RETURN_SINGLE_ENTRY	0x02
 898#define SMB2_INDEX_SPECIFIED		0x04
 899#define SMB2_REOPEN			0x10
 900
 901struct smb2_query_directory_req {
 902	struct smb2_hdr hdr;
 903	__le16 StructureSize; /* Must be 33 */
 904	__u8   FileInformationClass;
 905	__u8   Flags;
 906	__le32 FileIndex;
 907	__u64  PersistentFileId;
 908	__u64  VolatileFileId;
 909	__le16 FileNameOffset;
 910	__le16 FileNameLength;
 911	__le32 OutputBufferLength;
 912	__u8   Buffer[];
 913} __packed;
 914
 915struct smb2_query_directory_rsp {
 916	struct smb2_hdr hdr;
 917	__le16 StructureSize; /* Must be 9 */
 918	__le16 OutputBufferOffset;
 919	__le32 OutputBufferLength;
 920	__u8   Buffer[];
 921} __packed;
 922
 923/* DeviceType Flags */
 924#define FILE_DEVICE_CD_ROM              0x00000002
 925#define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
 926#define FILE_DEVICE_DFS                 0x00000006
 927#define FILE_DEVICE_DISK                0x00000007
 928#define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
 929#define FILE_DEVICE_FILE_SYSTEM         0x00000009
 930#define FILE_DEVICE_NAMED_PIPE          0x00000011
 931#define FILE_DEVICE_NETWORK             0x00000012
 932#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
 933#define FILE_DEVICE_NULL                0x00000015
 934#define FILE_DEVICE_PARALLEL_PORT       0x00000016
 935#define FILE_DEVICE_PRINTER             0x00000018
 936#define FILE_DEVICE_SERIAL_PORT         0x0000001b
 937#define FILE_DEVICE_STREAMS             0x0000001e
 938#define FILE_DEVICE_TAPE                0x0000001f
 939#define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
 940#define FILE_DEVICE_VIRTUAL_DISK        0x00000024
 941#define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
 942
 943/* Device Characteristics */
 944#define FILE_REMOVABLE_MEDIA			0x00000001
 945#define FILE_READ_ONLY_DEVICE			0x00000002
 946#define FILE_FLOPPY_DISKETTE			0x00000004
 947#define FILE_WRITE_ONCE_MEDIA			0x00000008
 948#define FILE_REMOTE_DEVICE			0x00000010
 949#define FILE_DEVICE_IS_MOUNTED			0x00000020
 950#define FILE_VIRTUAL_VOLUME			0x00000040
 951#define FILE_DEVICE_SECURE_OPEN			0x00000100
 952#define FILE_CHARACTERISTIC_TS_DEVICE		0x00001000
 953#define FILE_CHARACTERISTIC_WEBDAV_DEVICE	0x00002000
 954#define FILE_PORTABLE_DEVICE			0x00004000
 955#define FILE_DEVICE_ALLOW_APPCONTAINER_TRAVERSAL 0x00020000
 956
 957/*
 958 * Maximum number of iovs we need for a set-info request.
 959 * The largest one is rename/hardlink
 960 * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
 961 * [1] : path
 962 * [2] : compound padding
 963 */
 964#define SMB2_SET_INFO_IOV_SIZE 3
 965
 966struct smb2_set_info_req {
 967	struct smb2_hdr hdr;
 968	__le16 StructureSize; /* Must be 33 */
 969	__u8   InfoType;
 970	__u8   FileInfoClass;
 971	__le32 BufferLength;
 972	__le16 BufferOffset;
 973	__u16  Reserved;
 974	__le32 AdditionalInformation;
 975	__u64  PersistentFileId;
 976	__u64  VolatileFileId;
 977	__u8   Buffer[];
 978} __packed;
 979
 980struct smb2_set_info_rsp {
 981	struct smb2_hdr hdr;
 982	__le16 StructureSize; /* Must be 2 */
 983} __packed;
 984
 985/*
 986 * SMB2_NOTIFY  See MS-SMB2 section 2.2.35
 987 */
 988/* notify flags */
 989#define SMB2_WATCH_TREE			0x0001
 990
 991/* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
 992#define FILE_NOTIFY_CHANGE_FILE_NAME		0x00000001
 993#define FILE_NOTIFY_CHANGE_DIR_NAME		0x00000002
 994#define FILE_NOTIFY_CHANGE_NAME			0x00000003
 995#define FILE_NOTIFY_CHANGE_ATTRIBUTES		0x00000004
 996#define FILE_NOTIFY_CHANGE_SIZE			0x00000008
 997#define FILE_NOTIFY_CHANGE_LAST_WRITE		0x00000010
 998#define FILE_NOTIFY_CHANGE_LAST_ACCESS		0x00000020
 999#define FILE_NOTIFY_CHANGE_CREATION		0x00000040
1000#define FILE_NOTIFY_CHANGE_EA			0x00000080
1001#define FILE_NOTIFY_CHANGE_SECURITY		0x00000100
1002#define FILE_NOTIFY_CHANGE_STREAM_NAME		0x00000200
1003#define FILE_NOTIFY_CHANGE_STREAM_SIZE		0x00000400
1004#define FILE_NOTIFY_CHANGE_STREAM_WRITE		0x00000800
1005
1006/*
1007 * SMB2 Notify Action Flags
1008 * See MS-FSCC 2.7.1
1009 */
1010#define FILE_ACTION_ADDED                       0x00000001
1011#define FILE_ACTION_REMOVED                     0x00000002
1012#define FILE_ACTION_MODIFIED                    0x00000003
1013#define FILE_ACTION_RENAMED_OLD_NAME            0x00000004
1014#define FILE_ACTION_RENAMED_NEW_NAME            0x00000005
1015#define FILE_ACTION_ADDED_STREAM                0x00000006
1016#define FILE_ACTION_REMOVED_STREAM              0x00000007
1017#define FILE_ACTION_MODIFIED_STREAM             0x00000008
1018#define FILE_ACTION_REMOVED_BY_DELETE           0x00000009
1019#define FILE_ACTION_ID_NOT_TUNNELLED            0x0000000A
1020#define FILE_ACTION_TUNNELLED_ID_COLLISION      0x0000000B
1021
1022/* See MS-SMB2 2.2.35 */
1023struct smb2_change_notify_req {
1024	struct smb2_hdr hdr;
1025	__le16	StructureSize;
1026	__le16	Flags;
1027	__le32	OutputBufferLength;
1028	__u64	PersistentFileId; /* opaque endianness */
1029	__u64	VolatileFileId; /* opaque endianness */
1030	__le32	CompletionFilter;
1031	__u32	Reserved;
1032} __packed;
1033
1034/* See MS-SMB2 2.2.36 */
1035struct smb2_change_notify_rsp {
1036	struct smb2_hdr hdr;
1037	__le16	StructureSize;  /* Must be 9 */
1038	__le16	OutputBufferOffset;
1039	__le32	OutputBufferLength;
1040	__u8	Buffer[]; /* array of file notify structs */
1041} __packed;
1042
1043/*
1044 * SMB2_SERVER_TO_CLIENT_NOTIFICATION: See MS-SMB2 section 2.2.44
1045 */
1046
1047#define SMB2_NOTIFY_SESSION_CLOSED	0x0000
1048
1049struct smb2_server_client_notification {
1050	struct smb2_hdr hdr;
1051	__le16	StructureSize;
1052	__u16	Reserved; /* MBZ */
1053	__le32	NotificationType;
1054	__u8	NotificationBuffer[4]; /* MBZ */
1055} __packed;
1056
1057/*
1058 * SMB2_CREATE  See MS-SMB2 section 2.2.13
1059 */
1060/* Oplock levels */
1061#define SMB2_OPLOCK_LEVEL_NONE		0x00
1062#define SMB2_OPLOCK_LEVEL_II		0x01
1063#define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
1064#define SMB2_OPLOCK_LEVEL_BATCH		0x09
1065#define SMB2_OPLOCK_LEVEL_LEASE		0xFF
1066/* Non-spec internal type */
1067#define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99
1068
1069/* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
1070#define IL_ANONYMOUS		cpu_to_le32(0x00000000)
1071#define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
1072#define IL_IMPERSONATION	cpu_to_le32(0x00000002)
1073#define IL_DELEGATE		cpu_to_le32(0x00000003)
1074
1075/* Desired Access Flags */
1076#define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
1077#define FILE_LIST_DIRECTORY_LE		cpu_to_le32(0x00000001)
1078#define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
1079#define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
1080#define FILE_ADD_SUBDIRECTORY_LE	cpu_to_le32(0x00000004)
1081#define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
1082#define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
1083#define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
1084#define FILE_DELETE_CHILD_LE		cpu_to_le32(0x00000040)
1085#define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
1086#define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
1087#define FILE_DELETE_LE			cpu_to_le32(0x00010000)
1088#define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
1089#define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
1090#define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
1091#define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
1092#define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
1093#define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
1094#define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
1095#define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
1096#define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
1097#define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)
1098#define DESIRED_ACCESS_MASK             cpu_to_le32(0xF21F01FF)
1099
1100
1101#define FILE_READ_DESIRED_ACCESS_LE     (FILE_READ_DATA_LE        |	\
1102					 FILE_READ_EA_LE          |     \
1103					 FILE_GENERIC_READ_LE)
1104#define FILE_WRITE_DESIRE_ACCESS_LE     (FILE_WRITE_DATA_LE       |	\
1105					 FILE_APPEND_DATA_LE      |	\
1106					 FILE_WRITE_EA_LE         |	\
1107					 FILE_WRITE_ATTRIBUTES_LE |	\
1108					 FILE_GENERIC_WRITE_LE)
1109
1110/* ShareAccess Flags */
1111#define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
1112#define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
1113#define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
1114#define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)
1115
1116/* CreateDisposition Flags */
1117#define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
1118#define FILE_OPEN_LE			cpu_to_le32(0x00000001)
1119#define FILE_CREATE_LE			cpu_to_le32(0x00000002)
1120#define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
1121#define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
1122#define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)
1123#define FILE_CREATE_MASK_LE             cpu_to_le32(0x00000007)
1124
1125/* CreateOptions Flags */
1126#define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
1127/* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
1128#define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
1129#define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
1130#define FILE_NO_INTERMEDIATE_BUFFERING_LE cpu_to_le32(0x00000008)
1131/* FILE_SYNCHRONOUS_IO_ALERT_LE		cpu_to_le32(0x00000010) should be zero, ignored */
1132/* FILE_SYNCHRONOUS_IO_NONALERT		cpu_to_le32(0x00000020) should be zero, ignored */
1133#define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
1134#define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
1135#define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
1136/* FILE_OPEN_REMOTE_INSTANCE		cpu_to_le32(0x00000400) should be zero, ignored */
1137#define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
1138#define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000) /* MBZ */
1139#define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
1140#define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
1141#define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
1142/* FILE_OPEN_REQUIRING_OPLOCK		cpu_to_le32(0x00010000) should be zero, ignored */
1143/* FILE_DISALLOW_EXCLUSIVE		cpu_to_le32(0x00020000) should be zero, ignored */
1144/* FILE_RESERVE_OPFILTER		cpu_to_le32(0x00100000) MBZ */
1145#define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
1146#define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
1147/* #define FILE_OPEN_FOR_FREE_SPACE_QUERY cpu_to_le32(0x00800000) should be zero, ignored */
1148#define CREATE_OPTIONS_MASK_LE          cpu_to_le32(0x00FFFFFF)
1149
1150#define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
1151			| FILE_READ_ATTRIBUTES_LE)
1152#define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
1153			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
1154#define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
1155
1156/* Create Context Values */
1157#define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
1158#define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
1159#define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
1160#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
1161#define SMB2_CREATE_ALLOCATION_SIZE		"AlSi"
1162#define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
1163#define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
1164#define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
1165#define SMB2_CREATE_REQUEST_LEASE		"RqLs"
1166#define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2	"DH2Q"
1167#define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2	"DH2C"
1168#define SMB2_CREATE_TAG_POSIX		"\x93\xAD\x25\x50\x9C\xB4\x11\xE7\xB4\x23\x83\xDE\x96\x8B\xCD\x7C"
1169#define SMB2_CREATE_APP_INSTANCE_ID	"\x45\xBC\xA6\x6A\xEF\xA7\xF7\x4A\x90\x08\xFA\x46\x2E\x14\x4D\x74"
1170#define SMB2_CREATE_APP_INSTANCE_VERSION "\xB9\x82\xD0\xB7\x3B\x56\x07\x4F\xA0\x7B\x52\x4A\x81\x16\xA0\x10"
1171#define SVHDX_OPEN_DEVICE_CONTEXT	"\x9C\xCB\xCF\x9E\x04\xC1\xE6\x43\x98\x0E\x15\x8D\xA1\xF6\xEC\x83"
1172#define SMB2_CREATE_TAG_AAPL			"AAPL"
1173
1174/* Flag (SMB3 open response) values */
1175#define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
1176
1177struct create_context {
1178	/* New members must be added within the struct_group() macro below. */
1179	__struct_group(create_context_hdr, hdr, __packed,
1180		__le32 Next;
1181		__le16 NameOffset;
1182		__le16 NameLength;
1183		__le16 Reserved;
1184		__le16 DataOffset;
1185		__le32 DataLength;
1186	);
1187	__u8 Buffer[];
1188} __packed;
1189static_assert(offsetof(struct create_context, Buffer) == sizeof(struct create_context_hdr),
1190	      "struct member likely outside of __struct_group()");
1191
1192struct smb2_create_req {
1193	struct smb2_hdr hdr;
1194	__le16 StructureSize;	/* Must be 57 */
1195	__u8   SecurityFlags;
1196	__u8   RequestedOplockLevel;
1197	__le32 ImpersonationLevel;
1198	__le64 SmbCreateFlags;
1199	__le64 Reserved;
1200	__le32 DesiredAccess;
1201	__le32 FileAttributes;
1202	__le32 ShareAccess;
1203	__le32 CreateDisposition;
1204	__le32 CreateOptions;
1205	__le16 NameOffset;
1206	__le16 NameLength;
1207	__le32 CreateContextsOffset;
1208	__le32 CreateContextsLength;
1209	__u8   Buffer[];
1210} __packed;
1211
1212struct smb2_create_rsp {
1213	struct smb2_hdr hdr;
1214	__le16 StructureSize;	/* Must be 89 */
1215	__u8   OplockLevel;
1216	__u8   Flags;  /* 0x01 if reparse point */
1217	__le32 CreateAction;
1218	__le64 CreationTime;
1219	__le64 LastAccessTime;
1220	__le64 LastWriteTime;
1221	__le64 ChangeTime;
1222	__le64 AllocationSize;
1223	__le64 EndofFile;
1224	__le32 FileAttributes;
1225	__le32 Reserved2;
1226	__u64  PersistentFileId;
1227	__u64  VolatileFileId;
1228	__le32 CreateContextsOffset;
1229	__le32 CreateContextsLength;
1230	__u8   Buffer[];
1231} __packed;
1232
1233struct create_posix {
1234	struct create_context_hdr ccontext;
1235	__u8    Name[16];
1236	__le32  Mode;
1237	__u32   Reserved;
1238} __packed;
1239
1240/* See MS-SMB2 2.2.13.2.3 and MS-SMB2 2.2.13.2.4 */
1241typedef struct {
1242	struct create_context_hdr ccontext;
1243	__u8   Name[8];
1244	union {
1245		__u8  Reserved[16];
1246		struct {
1247			__u64 PersistentFileId;
1248			__u64 VolatileFileId;
1249		} Fid;
1250	} Data;
1251} __packed create_durable_req_t, create_durable_reconn_t;
1252
1253/* See MS-SMB2 2.2.13.2.5 */
1254struct create_mxac_req {
1255	struct create_context_hdr ccontext;
1256	__u8   Name[8];
1257	__le64 Timestamp;
1258} __packed;
1259
1260/*
1261 * Flags
1262 * See MS-SMB2 2.2.13.2.11
1263 *     MS-SMB2 2.2.13.2.12
1264 *     MS-SMB2 2.2.14.2.12
1265 */
1266#define SMB2_DHANDLE_FLAG_PERSISTENT	0x00000002
1267
1268/* See MS-SMB2 2.2.13.2.11 */
1269struct durable_context_v2_req {
1270	__le32 Timeout;
1271	__le32 Flags; /* see SMB2_DHANDLE_FLAG_PERSISTENT */
1272	__u64 Reserved;
1273	__u8 CreateGuid[16];
1274} __packed;
1275
1276struct create_durable_req_v2 {
1277	struct create_context_hdr ccontext;
1278	__u8   Name[8];
1279	struct durable_context_v2_req dcontext;
1280} __packed;
1281
1282/* See MS-SMB2 2.2.13.2.12 */
1283struct durable_reconnect_context_v2 {
1284	struct {
1285		__u64 PersistentFileId;
1286		__u64 VolatileFileId;
1287	} Fid;
1288	__u8 CreateGuid[16];
1289	__le32 Flags; /* see SMB2_DHANDLE_FLAG_PERSISTENT */
1290} __packed;
1291
1292struct create_durable_handle_reconnect_v2 {
1293	struct create_context_hdr ccontext;
1294	__u8   Name[8];
1295	struct durable_reconnect_context_v2 dcontext;
1296	__u8 Pad[4];
1297} __packed;
1298
1299/* See MS-SMB2 2.2.14.2.12 */
1300struct durable_context_v2_rsp {
1301	__le32 Timeout;
1302	__le32 Flags; /* see SMB2_DHANDLE_FLAG_PERSISTENT */
1303} __packed;
1304
1305struct create_durable_rsp_v2 {
1306	struct create_context_hdr ccontext;
1307	__u8   Name[8];
1308	struct durable_context_v2_rsp dcontext;
1309} __packed;
1310
1311/* See MS-SMB2 2.2.14.2.5 */
1312struct create_mxac_rsp {
1313	struct create_context_hdr ccontext;
1314	__u8   Name[8];
1315	__le32 QueryStatus;
1316	__le32 MaximalAccess;
1317} __packed;
1318
1319#define SMB2_LEASE_NONE_LE			cpu_to_le32(0x00)
1320#define SMB2_LEASE_READ_CACHING_LE		cpu_to_le32(0x01)
1321#define SMB2_LEASE_HANDLE_CACHING_LE		cpu_to_le32(0x02)
1322#define SMB2_LEASE_WRITE_CACHING_LE		cpu_to_le32(0x04)
1323
1324#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS_LE	cpu_to_le32(0x02)
1325#define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET_LE	cpu_to_le32(0x04)
1326
1327#define SMB2_LEASE_KEY_SIZE			16
1328
1329/* See MS-SMB2 2.2.13.2.8 */
1330struct lease_context {
1331	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1332	__le32 LeaseState;
1333	__le32 LeaseFlags;
1334	__le64 LeaseDuration;
1335} __packed;
1336
1337/* See MS-SMB2 2.2.13.2.10 */
1338struct lease_context_v2 {
1339	__u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
1340	__le32 LeaseState;
1341	__le32 LeaseFlags;
1342	__le64 LeaseDuration;
1343	__u8 ParentLeaseKey[SMB2_LEASE_KEY_SIZE];
1344	__le16 Epoch;
1345	__le16 Reserved;
1346} __packed;
1347
1348struct create_lease {
1349	struct create_context_hdr ccontext;
1350	__u8   Name[8];
1351	struct lease_context lcontext;
1352} __packed;
1353
1354struct create_lease_v2 {
1355	struct create_context_hdr ccontext;
1356	__u8   Name[8];
1357	struct lease_context_v2 lcontext;
1358	__u8   Pad[4];
1359} __packed;
1360
1361/* See MS-SMB2 2.2.14.2.9 */
1362struct create_disk_id_rsp {
1363	struct create_context_hdr ccontext;
1364	__u8   Name[8];
1365	__le64 DiskFileId;
1366	__le64 VolumeId;
1367	__u8  Reserved[16];
1368} __packed;
1369
1370/* See MS-SMB2 2.2.13.2.13 */
1371struct create_app_inst_id {
1372	struct create_context_hdr ccontext;
1373	__u8 Name[16];
1374	__le32 StructureSize; /* Must be 20 */
1375	__u16 Reserved;
1376	__u8 AppInstanceId[16];
1377} __packed;
1378
1379/* See MS-SMB2 2.2.13.2.15 */
1380struct create_app_inst_id_vers {
1381	struct create_context_hdr ccontext;
1382	__u8 Name[16];
1383	__le32 StructureSize; /* Must be 24 */
1384	__u16 Reserved;
1385	__u32 Padding;
1386	__le64 AppInstanceVersionHigh;
1387	__le64 AppInstanceVersionLow;
1388} __packed;
1389
1390/* See MS-SMB2 2.2.31 and 2.2.32 */
1391struct smb2_ioctl_req {
1392	struct smb2_hdr hdr;
1393	__le16 StructureSize; /* Must be 57 */
1394	__le16 Reserved; /* offset from start of SMB2 header to write data */
1395	__le32 CtlCode;
1396	__u64  PersistentFileId;
1397	__u64  VolatileFileId;
1398	__le32 InputOffset; /* Reserved MBZ */
1399	__le32 InputCount;
1400	__le32 MaxInputResponse;
1401	__le32 OutputOffset;
1402	__le32 OutputCount;
1403	__le32 MaxOutputResponse;
1404	__le32 Flags;
1405	__le32 Reserved2;
1406	__u8   Buffer[];
1407} __packed;
1408
1409/* See MS-SMB2 2.2.31.1.1 */
1410struct srv_copychunk {
1411	__le64 SourceOffset;
1412	__le64 TargetOffset;
1413	__le32 Length;
1414	__le32 Reserved;
1415} __packed;
1416
1417#define COPY_CHUNK_RES_KEY_SIZE	24
1418
1419/* See MS-SMB2 2.2.31.1 */
1420/* this goes in the ioctl buffer when doing a copychunk request */
1421struct copychunk_ioctl_req {
1422	union {
1423		char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
1424		__le64 SourceKeyU64[3];
1425	};
1426	__le32 ChunkCount;
1427	__le32 Reserved;
1428	struct srv_copychunk Chunks[] __counted_by_le(ChunkCount);
1429} __packed;
1430
1431/* See MS-SMB2 2.2.32.1 */
1432struct copychunk_ioctl_rsp {
1433	__le32 ChunksWritten;
1434	__le32 ChunkBytesWritten;
1435	__le32 TotalBytesWritten;
1436} __packed;
1437
1438/* See MS-SMB2 2.2.32.3 */
1439struct resume_key_ioctl_rsp {
1440	union {
1441		char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
1442		__u64 ResumeKeyU64[3];
1443	};
1444	__le32	ContextLength;	/* MBZ */
1445	char	Context[];	/* ignored, Windows sets to 4 bytes of zero */
1446} __packed;
1447
1448struct smb2_ioctl_rsp {
1449	struct smb2_hdr hdr;
1450	__le16 StructureSize; /* Must be 49 */
1451	__le16 Reserved;
1452	__le32 CtlCode;
1453	__u64  PersistentFileId;
1454	__u64  VolatileFileId;
1455	__le32 InputOffset; /* Reserved MBZ */
1456	__le32 InputCount;
1457	__le32 OutputOffset;
1458	__le32 OutputCount;
1459	__le32 Flags;
1460	__le32 Reserved2;
1461	__u8   Buffer[];
1462} __packed;
1463
1464/* See MS-SMB2 2.2.32.5.1.1 */
1465struct smb_sockaddr_in {
1466	__be16 Port;
1467	__be32 IPv4Address;
1468	__u8   Reserved[8];
1469} __packed;
1470
1471/* See MS-SMB2 2.2.32.5.1.2 */
1472struct smb_sockaddr_in6 {
1473	__be16 Port;
1474	__be32 FlowInfo;
1475	__u8   IPv6Address[16];
1476	__be32 ScopeId;
1477} __packed;
1478
1479/* See MS-SMB2 2.2.32.5 and MS-SMB2 2.2.32.5.1 */
1480#define RSS_CAPABLE	cpu_to_le32(0x00000001)
1481#define RDMA_CAPABLE	cpu_to_le32(0x00000002)
1482#define INTERNETWORK	cpu_to_le16(0x0002)
1483#define INTERNETWORKV6	cpu_to_le16(0x0017)
1484struct network_interface_info_ioctl_rsp {
1485	__le32 Next; /* next interface. zero if this is last one */
1486	__le32 IfIndex;
1487	__le32 Capability; /* RSS or RDMA Capable */
1488	__le32 Reserved;
1489	__le64 LinkSpeed;
1490	union {
1491		char	SockAddr_Storage[128];
1492		struct {
1493			__le16 Family;
1494			__u8 Buffer[126];
1495		};
1496	};
1497} __packed;
1498
1499/* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
1500struct file_zero_data_information {
1501	__le64	FileOffset;
1502	__le64	BeyondFinalZero;
1503} __packed;
1504
1505/* See MS-FSCC 2.3.7 */
1506struct duplicate_extents_to_file {
1507	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1508	__u64 VolatileFileHandle;
1509	__le64 SourceFileOffset;
1510	__le64 TargetFileOffset;
1511	__le64 ByteCount;  /* Bytes to be copied */
1512} __packed;
1513
1514/* See MS-FSCC 2.3.9 */
1515#define DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC	0x00000001
1516struct duplicate_extents_to_file_ex {
1517	__le64 StructureSize; /* MUST be set to 0x30 */
1518	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1519	__u64 VolatileFileHandle;
1520	__le64 SourceFileOffset;
1521	__le64 TargetFileOffset;
1522	__le64 ByteCount;  /* Bytes to be copied */
1523	__le32 Flags;
1524	__le32 Reserved;
1525} __packed;
1526
1527
1528/* See MS-FSCC 2.3.20 */
1529struct fsctl_get_integrity_information_rsp {
1530	__le16	ChecksumAlgorithm;
1531	__le16	Reserved;
1532	__le32	Flags;
1533	__le32	ChecksumChunkSizeInBytes;
1534	__le32	ClusterSizeInBytes;
1535} __packed;
1536
1537/* See MS-FSCC 2.3.55 */
1538struct fsctl_query_file_regions_req {
1539	__le64	FileOffset;
1540	__le64	Length;
1541	__le32	DesiredUsage;
1542	__le32	Reserved;
1543} __packed;
1544
1545/* DesiredUsage flags see MS-FSCC 2.3.56.1 */
1546#define FILE_USAGE_INVALID_RANGE	0x00000000
1547#define FILE_USAGE_VALID_CACHED_DATA	0x00000001
1548#define FILE_USAGE_NONCACHED_DATA	0x00000002
1549
1550struct file_region_info {
1551	__le64	FileOffset;
1552	__le64	Length;
1553	__le32	DesiredUsage;
1554	__le32	Reserved;
1555} __packed;
1556
1557/* See MS-FSCC 2.3.56 */
1558struct fsctl_query_file_region_rsp {
1559	__le32 Flags;
1560	__le32 TotalRegionEntryCount;
1561	__le32 RegionEntryCount;
1562	__u32  Reserved;
1563	struct  file_region_info Regions[];
1564} __packed;
1565
1566/* See MS-FSCC 2.3.58 */
1567struct fsctl_query_on_disk_vol_info_rsp {
1568	__le64	DirectoryCount;
1569	__le64	FileCount;
1570	__le16	FsFormatMajVersion;
1571	__le16	FsFormatMinVersion;
1572	__u8	FsFormatName[24];
1573	__le64	FormatTime;
1574	__le64	LastUpdateTime;
1575	__u8	CopyrightInfo[68];
1576	__u8	AbstractInfo[68];
1577	__u8	FormatImplInfo[68];
1578	__u8	LastModifyImplInfo[68];
1579} __packed;
1580
1581/* See MS-FSCC 2.3.73 */
1582struct fsctl_set_integrity_information_req {
1583	__le16	ChecksumAlgorithm;
1584	__le16	Reserved;
1585	__le32	Flags;
1586} __packed;
1587
1588/* See MS-FSCC 2.3.75 */
1589struct fsctl_set_integrity_info_ex_req {
1590	__u8	EnableIntegrity;
1591	__u8	KeepState;
1592	__u16	Reserved;
1593	__le32	Flags;
1594	__u8	Version;
1595	__u8	Reserved2[7];
1596} __packed;
1597
1598/* Integrity ChecksumAlgorithm choices for above */
1599#define	CHECKSUM_TYPE_NONE	0x0000
1600#define	CHECKSUM_TYPE_CRC64	0x0002
1601#define	CHECKSUM_TYPE_UNCHANGED	0xFFFF	/* set only */
1602
1603/* Integrity flags for above */
1604#define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF	0x00000001
1605
1606/* Reparse structures - see MS-FSCC 2.1.2 */
1607
1608/* struct fsctl_reparse_info_req is empty, only response structs (see below) */
1609struct reparse_data_buffer {
1610	__le32	ReparseTag;
1611	__le16	ReparseDataLength;
1612	__u16	Reserved;
1613	__u8	DataBuffer[]; /* Variable Length */
1614} __packed;
1615
1616struct reparse_guid_data_buffer {
1617	__le32	ReparseTag;
1618	__le16	ReparseDataLength;
1619	__u16	Reserved;
1620	__u8	ReparseGuid[16];
1621	__u8	DataBuffer[]; /* Variable Length */
1622} __packed;
1623
1624struct reparse_mount_point_data_buffer {
1625	__le32	ReparseTag;
1626	__le16	ReparseDataLength;
1627	__u16	Reserved;
1628	__le16	SubstituteNameOffset;
1629	__le16	SubstituteNameLength;
1630	__le16	PrintNameOffset;
1631	__le16	PrintNameLength;
1632	__u8	PathBuffer[]; /* Variable Length */
1633} __packed;
1634
1635#define SYMLINK_FLAG_RELATIVE 0x00000001
1636
1637struct reparse_symlink_data_buffer {
1638	__le32	ReparseTag;
1639	__le16	ReparseDataLength;
1640	__u16	Reserved;
1641	__le16	SubstituteNameOffset;
1642	__le16	SubstituteNameLength;
1643	__le16	PrintNameOffset;
1644	__le16	PrintNameLength;
1645	__le32	Flags;
1646	__u8	PathBuffer[]; /* Variable Length */
1647} __packed;
1648
1649/* For IO_REPARSE_TAG_NFS - see MS-FSCC 2.1.2.6 */
1650#define NFS_SPECFILE_LNK	0x00000000014B4E4C
1651#define NFS_SPECFILE_CHR	0x0000000000524843
1652#define NFS_SPECFILE_BLK	0x00000000004B4C42
1653#define NFS_SPECFILE_FIFO	0x000000004F464946
1654#define NFS_SPECFILE_SOCK	0x000000004B434F53
1655struct reparse_nfs_data_buffer {
1656	__le32	ReparseTag;
1657	__le16	ReparseDataLength;
1658	__u16	Reserved;
1659	__le64	InodeType; /* NFS_SPECFILE_* */
1660	__u8	DataBuffer[];
1661} __packed;
1662
1663/* For IO_REPARSE_TAG_LX_SYMLINK - see MS-FSCC 2.1.2.7 */
1664struct reparse_wsl_symlink_data_buffer {
1665	__le32	ReparseTag;
1666	__le16	ReparseDataLength;
1667	__u16	Reserved;
1668	__le32	Version; /* Always 2 */
1669	__u8	Target[]; /* Variable Length UTF-8 string without nul-term */
1670} __packed;
1671
1672struct validate_negotiate_info_req {
1673	__le32 Capabilities;
1674	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1675	__le16 SecurityMode;
1676	__le16 DialectCount;
1677	__le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
1678} __packed;
1679
1680struct validate_negotiate_info_rsp {
1681	__le32 Capabilities;
1682	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
1683	__le16 SecurityMode;
1684	__le16 Dialect; /* Dialect in use for the connection */
1685} __packed;
1686
1687
1688/* Possible InfoType values */
1689#define SMB2_O_INFO_FILE	0x01
1690#define SMB2_O_INFO_FILESYSTEM	0x02
1691#define SMB2_O_INFO_SECURITY	0x03
1692#define SMB2_O_INFO_QUOTA	0x04
1693
1694/* SMB2 Query Info see MS-SMB2 (2.2.37) or MS-DTYP */
1695
1696/* List of QUERY INFO levels (those also valid for QUERY_DIR are noted below */
1697#define FILE_DIRECTORY_INFORMATION	1	/* also for QUERY_DIR */
1698#define FILE_FULL_DIRECTORY_INFORMATION 2	/* also for QUERY_DIR */
1699#define FILE_BOTH_DIRECTORY_INFORMATION 3	/* also for QUERY_DIR */
1700#define FILE_BASIC_INFORMATION		4
1701#define FILE_STANDARD_INFORMATION	5
1702#define FILE_INTERNAL_INFORMATION	6
1703#define FILE_EA_INFORMATION	        7
1704#define FILE_ACCESS_INFORMATION		8
1705#define FILE_NAME_INFORMATION		9
1706#define FILE_RENAME_INFORMATION		10
1707#define FILE_LINK_INFORMATION		11
1708#define FILE_NAMES_INFORMATION		12	/* also for QUERY_DIR */
1709#define FILE_DISPOSITION_INFORMATION	13
1710#define FILE_POSITION_INFORMATION	14
1711#define FILE_FULL_EA_INFORMATION	15
1712#define FILE_MODE_INFORMATION		16
1713#define FILE_ALIGNMENT_INFORMATION	17
1714#define FILE_ALL_INFORMATION		18
1715#define FILE_ALLOCATION_INFORMATION	19
1716#define FILE_END_OF_FILE_INFORMATION	20
1717#define FILE_ALTERNATE_NAME_INFORMATION 21
1718#define FILE_STREAM_INFORMATION		22
1719#define FILE_PIPE_INFORMATION		23
1720#define FILE_PIPE_LOCAL_INFORMATION	24
1721#define FILE_PIPE_REMOTE_INFORMATION	25
1722#define FILE_MAILSLOT_QUERY_INFORMATION 26
1723#define FILE_MAILSLOT_SET_INFORMATION	27
1724#define FILE_COMPRESSION_INFORMATION	28
1725#define FILE_OBJECT_ID_INFORMATION	29
1726/* Number 30 not defined in documents */
1727#define FILE_MOVE_CLUSTER_INFORMATION	31
1728#define FILE_QUOTA_INFORMATION		32
1729#define FILE_REPARSE_POINT_INFORMATION	33
1730#define FILE_NETWORK_OPEN_INFORMATION	34
1731#define FILE_ATTRIBUTE_TAG_INFORMATION	35
1732#define FILE_TRACKING_INFORMATION	36
1733#define FILEID_BOTH_DIRECTORY_INFORMATION 37	/* also for QUERY_DIR */
1734#define FILEID_FULL_DIRECTORY_INFORMATION 38	/* also for QUERY_DIR */
1735#define FILE_VALID_DATA_LENGTH_INFORMATION 39
1736#define FILE_SHORT_NAME_INFORMATION	40
1737#define FILE_SFIO_RESERVE_INFORMATION	44
1738#define FILE_SFIO_VOLUME_INFORMATION	45
1739#define FILE_HARD_LINK_INFORMATION	46
1740#define FILE_NORMALIZED_NAME_INFORMATION 48
1741#define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1742#define FILE_STANDARD_LINK_INFORMATION	54
1743#define FILE_ID_INFORMATION		59
1744#define FILE_ID_EXTD_DIRECTORY_INFORMATION 60	/* also for QUERY_DIR */
1745/* Used for Query Info and Find File POSIX Info for SMB3.1.1 and SMB1 */
1746#define SMB_FIND_FILE_POSIX_INFO	0x064
1747
1748/* Security info type additionalinfo flags. */
1749#define OWNER_SECINFO   0x00000001
1750#define GROUP_SECINFO   0x00000002
1751#define DACL_SECINFO   0x00000004
1752#define SACL_SECINFO   0x00000008
1753#define LABEL_SECINFO   0x00000010
1754#define ATTRIBUTE_SECINFO   0x00000020
1755#define SCOPE_SECINFO   0x00000040
1756#define BACKUP_SECINFO   0x00010000
1757#define UNPROTECTED_SACL_SECINFO   0x10000000
1758#define UNPROTECTED_DACL_SECINFO   0x20000000
1759#define PROTECTED_SACL_SECINFO   0x40000000
1760#define PROTECTED_DACL_SECINFO   0x80000000
1761
1762/* Flags used for FileFullEAinfo */
1763#define SL_RESTART_SCAN		0x00000001
1764#define SL_RETURN_SINGLE_ENTRY	0x00000002
1765#define SL_INDEX_SPECIFIED	0x00000004
1766
1767struct smb2_query_info_req {
1768	struct smb2_hdr hdr;
1769	__le16 StructureSize; /* Must be 41 */
1770	__u8   InfoType;
1771	__u8   FileInfoClass;
1772	__le32 OutputBufferLength;
1773	__le16 InputBufferOffset;
1774	__u16  Reserved;
1775	__le32 InputBufferLength;
1776	__le32 AdditionalInformation;
1777	__le32 Flags;
1778	__u64  PersistentFileId;
1779	__u64  VolatileFileId;
1780	__u8   Buffer[];
1781} __packed;
1782
1783struct smb2_query_info_rsp {
1784	struct smb2_hdr hdr;
1785	__le16 StructureSize; /* Must be 9 */
1786	__le16 OutputBufferOffset;
1787	__le32 OutputBufferLength;
1788	__u8   Buffer[];
1789} __packed;
1790
1791/*
1792 *	PDU query infolevel structure definitions
1793 */
1794
1795/* See MS-FSCC 2.3.52 */
1796struct file_allocated_range_buffer {
1797	__le64	file_offset;
1798	__le64	length;
1799} __packed;
1800
1801struct smb2_file_internal_info {
1802	__le64 IndexNumber;
1803} __packed; /* level 6 Query */
1804
1805struct smb2_file_rename_info { /* encoding of request for level 10 */
1806	/* New members MUST be added within the struct_group() macro below. */
1807	__struct_group(smb2_file_rename_info_hdr, __hdr, __packed,
1808		__u8   ReplaceIfExists; /* 1 = replace existing target with new */
1809					/* 0 = fail if target already exists */
1810		__u8   Reserved[7];
1811		__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1812		__le32 FileNameLength;
1813	);
1814	char   FileName[];     /* New name to be assigned */
1815	/* padding - overall struct size must be >= 24 so filename + pad >= 6 */
1816} __packed; /* level 10 Set */
1817static_assert(offsetof(struct smb2_file_rename_info, FileName) == sizeof(struct smb2_file_rename_info_hdr),
1818	      "struct member likely outside of __struct_group()");
1819
1820struct smb2_file_link_info { /* encoding of request for level 11 */
1821	/* New members MUST be added within the struct_group() macro below. */
1822	__struct_group(smb2_file_link_info_hdr, __hdr, __packed,
1823		__u8   ReplaceIfExists; /* 1 = replace existing link with new */
1824					/* 0 = fail if link already exists */
1825		__u8   Reserved[7];
1826		__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1827		__le32 FileNameLength;
1828	);
1829	char   FileName[];     /* Name to be assigned to new link */
1830} __packed; /* level 11 Set */
1831static_assert(offsetof(struct smb2_file_link_info, FileName) == sizeof(struct smb2_file_link_info_hdr),
1832	      "struct member likely outside of __struct_group()");
1833
1834/*
1835 * This level 18, although with struct with same name is different from cifs
1836 * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1837 * CurrentByteOffset.
1838 */
1839struct smb2_file_all_info { /* data block encoding of response to level 18 */
1840	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
1841	__le64 LastAccessTime;
1842	__le64 LastWriteTime;
1843	__le64 ChangeTime;
1844	__le32 Attributes;
1845	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
1846	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1847	__le64 EndOfFile;	/* size ie offset to first free byte in file */
1848	__le32 NumberOfLinks;	/* hard links */
1849	__u8   DeletePending;
1850	__u8   Directory;
1851	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
1852	__le64 IndexNumber;
1853	__le32 EASize;
1854	__le32 AccessFlags;
1855	__le64 CurrentByteOffset;
1856	__le32 Mode;
1857	__le32 AlignmentRequirement;
1858	__le32 FileNameLength;
1859	union {
1860		char __pad;	/* Legacy structure padding */
1861		DECLARE_FLEX_ARRAY(char, FileName);
1862	};
1863} __packed; /* level 18 Query */
1864
1865struct smb2_file_eof_info { /* encoding of request for level 10 */
1866	__le64 EndOfFile; /* new end of file value */
1867} __packed; /* level 20 Set */
1868
1869/* Level 100 query info */
1870struct smb311_posix_qinfo {
1871	__le64 CreationTime;
1872	__le64 LastAccessTime;
1873	__le64 LastWriteTime;
1874	__le64 ChangeTime;
1875	__le64 EndOfFile;
1876	__le64 AllocationSize;
1877	__le32 DosAttributes;
1878	__le64 Inode;
1879	__le32 DeviceId;
1880	__le32 Zero;
1881	/* beginning of POSIX Create Context Response */
1882	__le32 HardLinks;
1883	__le32 ReparseTag;
1884	__le32 Mode;
1885	u8     Sids[];
1886	/*
1887	 * var sized owner SID
1888	 * var sized group SID
1889	 * le32 filenamelength
1890	 * u8  filename[]
1891	 */
1892} __packed;
1893
1894/* File System Information Classes */
1895#define FS_VOLUME_INFORMATION		1 /* Query */
1896#define FS_LABEL_INFORMATION		2 /* Set */
1897#define FS_SIZE_INFORMATION		3 /* Query */
1898#define FS_DEVICE_INFORMATION		4 /* Query */
1899#define FS_ATTRIBUTE_INFORMATION	5 /* Query */
1900#define FS_CONTROL_INFORMATION		6 /* Query, Set */
1901#define FS_FULL_SIZE_INFORMATION	7 /* Query */
1902#define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
1903#define FS_DRIVER_PATH_INFORMATION	9 /* Query */
1904#define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
1905#define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */
1906
1907struct smb2_fs_full_size_info {
1908	__le64 TotalAllocationUnits;
1909	__le64 CallerAvailableAllocationUnits;
1910	__le64 ActualAvailableAllocationUnits;
1911	__le32 SectorsPerAllocationUnit;
1912	__le32 BytesPerSector;
1913} __packed;
1914
1915#define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
1916#define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1917#define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
1918#define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
1919
1920/* sector size info struct */
1921struct smb3_fs_ss_info {
1922	__le32 LogicalBytesPerSector;
1923	__le32 PhysicalBytesPerSectorForAtomicity;
1924	__le32 PhysicalBytesPerSectorForPerf;
1925	__le32 FSEffPhysicalBytesPerSectorForAtomicity;
1926	__le32 Flags;
1927	__le32 ByteOffsetForSectorAlignment;
1928	__le32 ByteOffsetForPartitionAlignment;
1929} __packed;
1930
1931/* File System Control Information */
1932struct smb2_fs_control_info {
1933	__le64 FreeSpaceStartFiltering;
1934	__le64 FreeSpaceThreshold;
1935	__le64 FreeSpaceStopFiltering;
1936	__le64 DefaultQuotaThreshold;
1937	__le64 DefaultQuotaLimit;
1938	__le32 FileSystemControlFlags;
1939	__le32 Padding;
1940} __packed;
1941
1942/* volume info struct - see MS-FSCC 2.5.9 */
1943#define MAX_VOL_LABEL_LEN	32
1944struct smb3_fs_vol_info {
1945	__le64	VolumeCreationTime;
1946	__u32	VolumeSerialNumber;
1947	__le32	VolumeLabelLength; /* includes trailing null */
1948	__u8	SupportsObjects; /* True if eg like NTFS, supports objects */
1949	__u8	Reserved;
1950	__u8	VolumeLabel[]; /* variable len */
1951} __packed;
1952
1953/* See MS-SMB2 2.2.23 through 2.2.25 */
1954struct smb2_oplock_break {
1955	struct smb2_hdr hdr;
1956	__le16 StructureSize; /* Must be 24 */
1957	__u8   OplockLevel;
1958	__u8   Reserved;
1959	__le32 Reserved2;
1960	__u64  PersistentFid;
1961	__u64  VolatileFid;
1962} __packed;
1963
1964#define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1965
1966struct smb2_lease_break {
1967	struct smb2_hdr hdr;
1968	__le16 StructureSize; /* Must be 44 */
1969	__le16 Epoch;
1970	__le32 Flags;
1971	__u8   LeaseKey[16];
1972	__le32 CurrentLeaseState;
1973	__le32 NewLeaseState;
1974	__le32 BreakReason;
1975	__le32 AccessMaskHint;
1976	__le32 ShareMaskHint;
1977} __packed;
1978
1979struct smb2_lease_ack {
1980	struct smb2_hdr hdr;
1981	__le16 StructureSize; /* Must be 36 */
1982	__le16 Reserved;
1983	__le32 Flags;
1984	__u8   LeaseKey[16];
1985	__le32 LeaseState;
1986	__le64 LeaseDuration;
1987} __packed;
1988
1989#define OP_BREAK_STRUCT_SIZE_20		24
1990#define OP_BREAK_STRUCT_SIZE_21		36
1991
1992/*
1993 * See MS-SMB2 2.2.13.1.1
1994 *     MS-SMB 2.2.1.4.1
1995 * These are the file access permission bits defined in CIFS for the
1996 * NTCreateAndX as well as the level 0x107
1997 * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
1998 * responds with the AccessFlags.
1999 * The AccessFlags specifies the access permissions a caller has to the
2000 * file and can have any suitable combination of the following values:
2001 */
2002#define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
2003					  /* or directory child entries can   */
2004					  /* be listed together with the      */
2005					  /* associated child attributes      */
2006					  /* (so the FILE_READ_ATTRIBUTES on  */
2007					  /* the child entry is not needed)   */
2008#define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
2009					  /* or new file can be created in    */
2010					  /* the directory                    */
2011#define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
2012					  /* (for non-local files over SMB it */
2013					  /* is same as FILE_WRITE_DATA)      */
2014					  /* or new subdirectory can be       */
2015					  /* created in the directory         */
2016#define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
2017					  /* with the file can be read        */
2018#define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
2019					  /* with the file can be written     */
2020#define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
2021					  /* the file using system paging I/O */
2022					  /* for executing the file / script  */
2023					  /* or right to traverse directory   */
2024					  /* (but by default all users have   */
2025					  /* directory bypass traverse        */
2026					  /* privilege and do not need this   */
2027					  /* permission on directories at all)*/
2028#define FILE_DELETE_CHILD     0x00000040  /* Child entry can be deleted from  */
2029					  /* the directory (so the DELETE on  */
2030					  /* the child entry is not needed)   */
2031#define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
2032					  /* file or directory can be read    */
2033#define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
2034					  /* file or directory can be written */
2035#define DELETE                0x00010000  /* The file or dir can be deleted   */
2036#define READ_CONTROL          0x00020000  /* The discretionary access control */
2037					  /* list and ownership associated    */
2038					  /* with the file or dir can be read */
2039#define WRITE_DAC             0x00040000  /* The discretionary access control */
2040					  /* list associated with the file or */
2041					  /* directory can be written         */
2042#define WRITE_OWNER           0x00080000  /* Ownership information associated */
2043					  /* with the file/dir can be written */
2044#define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
2045					  /* synchronize with the completion  */
2046					  /* of an input/output request       */
2047#define SYSTEM_SECURITY       0x01000000  /* The system access control list   */
2048					  /* associated with the file or      */
2049					  /* directory can be read or written */
2050					  /* (cannot be in DACL, can in SACL) */
2051#define MAXIMUM_ALLOWED       0x02000000  /* Maximal subset of GENERIC_ALL    */
2052					  /* permissions which can be granted */
2053					  /* (cannot be in DACL nor SACL)     */
2054#define GENERIC_ALL           0x10000000  /* Same as: GENERIC_EXECUTE |       */
2055					  /*          GENERIC_WRITE |         */
2056					  /*          GENERIC_READ |          */
2057					  /*          FILE_DELETE_CHILD |     */
2058					  /*          DELETE |                */
2059					  /*          WRITE_DAC |             */
2060					  /*          WRITE_OWNER             */
2061					  /* So GENERIC_ALL contains all bits */
2062					  /* mentioned above except these two */
2063					  /* SYSTEM_SECURITY  MAXIMUM_ALLOWED */
2064#define GENERIC_EXECUTE       0x20000000  /* Same as: FILE_EXECUTE |          */
2065					  /*          FILE_READ_ATTRIBUTES |  */
2066					  /*          READ_CONTROL |          */
2067					  /*          SYNCHRONIZE             */
2068#define GENERIC_WRITE         0x40000000  /* Same as: FILE_WRITE_DATA |       */
2069					  /*          FILE_APPEND_DATA |      */
2070					  /*          FILE_WRITE_EA |         */
2071					  /*          FILE_WRITE_ATTRIBUTES | */
2072					  /*          READ_CONTROL |          */
2073					  /*          SYNCHRONIZE             */
2074#define GENERIC_READ          0x80000000  /* Same as: FILE_READ_DATA |        */
2075					  /*          FILE_READ_EA |          */
2076					  /*          FILE_READ_ATTRIBUTES |  */
2077					  /*          READ_CONTROL |          */
2078					  /*          SYNCHRONIZE             */
2079
2080/* Combinations of file access permission bits */
2081#define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
2082#define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
2083			| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
2084#define FILE_EXEC_RIGHTS (FILE_EXECUTE)
2085#define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
2086				| FILE_READ_ATTRIBUTES \
2087				| FILE_WRITE_ATTRIBUTES \
2088				| DELETE | READ_CONTROL | WRITE_DAC \
2089				| WRITE_OWNER | SYNCHRONIZE)
2090#define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
2091				| READ_CONTROL | SYNCHRONIZE)
2092
2093#endif				/* _COMMON_SMB2PDU_H */
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