cifspdu.h

Linux内核自带的cifs模块

	unsigned char DialectsArray[1];
} __attribute__((packed)) NEGOTIATE_REQ;

/* Dialect index is 13 for LANMAN */

#define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */

typedef struct lanman_neg_rsp {
	struct smb_hdr hdr;	/* wct = 13 */
	__le16 DialectIndex;
	__le16 SecurityMode;
	__le16 MaxBufSize;
	__le16 MaxMpxCount;
	__le16 MaxNumberVcs;
	__le16 RawMode;
	__le32 SessionKey;
	struct {
		__le16 Time;
		__le16 Date;
	} __attribute__((packed)) SrvTime;
	__le16 ServerTimeZone;
	__le16 EncryptionKeyLength;
	__le16 Reserved;
	__u16  ByteCount;
	unsigned char EncryptionKey[1];
} __attribute__((packed)) LANMAN_NEG_RSP;

#define READ_RAW_ENABLE 1
#define WRITE_RAW_ENABLE 2
#define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)

typedef struct negotiate_rsp {
	struct smb_hdr hdr;	/* wct = 17 */
	__le16 DialectIndex;
	__u8 SecurityMode;
	__le16 MaxMpxCount;
	__le16 MaxNumberVcs;
	__le32 MaxBufferSize;
	__le32 MaxRawSize;
	__le32 SessionKey;
	__le32 Capabilities;	/* see below */
	__le32 SystemTimeLow;
	__le32 SystemTimeHigh;
	__le16 ServerTimeZone;
	__u8 EncryptionKeyLength;
	__u16 ByteCount;
	union {
		unsigned char EncryptionKey[1];	/* cap extended security off */
		/* followed by Domain name - if extended security is off */
		/* followed by 16 bytes of server GUID */
		/* then security blob if cap_extended_security negotiated */
		struct {
			unsigned char GUID[16];
			unsigned char SecurityBlob[1];
		} __attribute__((packed)) extended_response;
	} __attribute__((packed)) u;
} __attribute__((packed)) NEGOTIATE_RSP;

/* SecurityMode bits */
#define SECMODE_USER          0x01	/* off indicates share level security */
#define SECMODE_PW_ENCRYPT    0x02
#define SECMODE_SIGN_ENABLED  0x04	/* SMB security signatures enabled */
#define SECMODE_SIGN_REQUIRED 0x08	/* SMB security signatures required */

/* Negotiate response Capabilities */
#define CAP_RAW_MODE           0x00000001
#define CAP_MPX_MODE           0x00000002
#define CAP_UNICODE            0x00000004
#define CAP_LARGE_FILES        0x00000008
#define CAP_NT_SMBS            0x00000010	/* implies CAP_NT_FIND */
#define CAP_RPC_REMOTE_APIS    0x00000020
#define CAP_STATUS32           0x00000040
#define CAP_LEVEL_II_OPLOCKS   0x00000080
#define CAP_LOCK_AND_READ      0x00000100
#define CAP_NT_FIND            0x00000200
#define CAP_DFS                0x00001000
#define CAP_INFOLEVEL_PASSTHRU 0x00002000
#define CAP_LARGE_READ_X       0x00004000
#define CAP_LARGE_WRITE_X      0x00008000
#define CAP_UNIX               0x00800000
#define CAP_RESERVED           0x02000000
#define CAP_BULK_TRANSFER      0x20000000
#define CAP_COMPRESSED_DATA    0x40000000
#define CAP_EXTENDED_SECURITY  0x80000000

typedef union smb_com_session_setup_andx {
	struct {		/* request format */
		struct smb_hdr hdr;	/* wct = 12 */
		__u8 AndXCommand;
		__u8 AndXReserved;
		__le16 AndXOffset;
		__le16 MaxBufferSize;
		__le16 MaxMpxCount;
		__le16 VcNumber;
		__u32 SessionKey;
		__le16 SecurityBlobLength;
		__u32 Reserved;
		__le32 Capabilities;	/* see below */
		__le16 ByteCount;
		unsigned char SecurityBlob[1];	/* followed by */
		/* STRING NativeOS */
		/* STRING NativeLanMan */
	} __attribute__((packed)) req;	/* NTLM request format (with
					extended security */

	struct {		/* request format */
		struct smb_hdr hdr;	/* wct = 13 */
		__u8 AndXCommand;
		__u8 AndXReserved;
		__le16 AndXOffset;
		__le16 MaxBufferSize;
		__le16 MaxMpxCount;
		__le16 VcNumber;
		__u32 SessionKey;
		__le16 CaseInsensitivePasswordLength; /* ASCII password len */
		__le16 CaseSensitivePasswordLength; /* Unicode password length*/
		__u32 Reserved;	/* see below */
		__le32 Capabilities;
		__le16 ByteCount;
		unsigned char CaseInsensitivePassword[1];     /* followed by: */
		/* unsigned char * CaseSensitivePassword; */
		/* STRING AccountName */
		/* STRING PrimaryDomain */
		/* STRING NativeOS */
		/* STRING NativeLanMan */
	} __attribute__((packed)) req_no_secext; /* NTLM request format (without
							extended security */

	struct {		/* default (NTLM) response format */
		struct smb_hdr hdr;	/* wct = 4 */
		__u8 AndXCommand;
		__u8 AndXReserved;
		__le16 AndXOffset;
		__le16 Action;	/* see below */
		__le16 SecurityBlobLength;
		__u16 ByteCount;
		unsigned char SecurityBlob[1];	/* followed by */
/*      unsigned char  * NativeOS;      */
/*	unsigned char  * NativeLanMan;  */
/*      unsigned char  * PrimaryDomain; */
	} __attribute__((packed)) resp;	/* NTLM response
					   (with or without extended sec) */

	struct {		/* request format */
		struct smb_hdr hdr;	/* wct = 10 */
		__u8 AndXCommand;
		__u8 AndXReserved;
		__le16 AndXOffset;
		__le16 MaxBufferSize;
		__le16 MaxMpxCount;
		__le16 VcNumber;
		__u32 SessionKey;
		__le16 PasswordLength;
		__u32 Reserved; /* encrypt key len and offset */
		__le16 ByteCount;
		unsigned char AccountPassword[1];	/* followed by */
		/* STRING AccountName */
		/* STRING PrimaryDomain */
		/* STRING NativeOS */
		/* STRING NativeLanMan */
	} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */

	struct {		/* default (NTLM) response format */
		struct smb_hdr hdr;	/* wct = 3 */
		__u8 AndXCommand;
		__u8 AndXReserved;
		__le16 AndXOffset;
		__le16 Action;	/* see below */
		__u16 ByteCount;
		unsigned char NativeOS[1];	/* followed by */
/*	unsigned char * NativeLanMan; */
/*      unsigned char * PrimaryDomain; */
	} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
} __attribute__((packed)) SESSION_SETUP_ANDX;

/* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */

#define NTLMSSP_SERVER_TYPE	1
#define NTLMSSP_DOMAIN_TYPE	2
#define NTLMSSP_FQ_DOMAIN_TYPE	3
#define NTLMSSP_DNS_DOMAIN_TYPE	4
#define NTLMSSP_DNS_PARENT_TYPE	5

struct ntlmssp2_name {
	__le16 type;
	__le16 length;
/*	char   name[length]; */
} __attribute__((packed));

struct ntlmv2_resp {
	char ntlmv2_hash[CIFS_ENCPWD_SIZE];
	__le32 blob_signature;
	__u32  reserved;
	__le64  time;
	__u64  client_chal; /* random */
	__u32  reserved2;
	struct ntlmssp2_name names[2];
	/* array of name entries could follow ending in minimum 4 byte struct */
} __attribute__((packed));


#define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"

/* Capabilities bits (for NTLM SessSetup request) */
#define CAP_UNICODE            0x00000004
#define CAP_LARGE_FILES        0x00000008
#define CAP_NT_SMBS            0x00000010
#define CAP_STATUS32           0x00000040
#define CAP_LEVEL_II_OPLOCKS   0x00000080
#define CAP_NT_FIND            0x00000200	/* reserved should be zero
				(because NT_SMBs implies the same thing?) */
#define CAP_BULK_TRANSFER      0x20000000
#define CAP_EXTENDED_SECURITY  0x80000000

/* Action bits */
#define GUEST_LOGIN 1

typedef struct smb_com_tconx_req {
	struct smb_hdr hdr;	/* wct = 4 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__le16 Flags;		/* see below */
	__le16 PasswordLength;
	__le16 ByteCount;
	unsigned char Password[1];	/* followed by */
/* STRING Path    *//* \\server\share name */
	/* STRING Service */
} __attribute__((packed)) TCONX_REQ;

typedef struct smb_com_tconx_rsp {
	struct smb_hdr hdr;	/* wct = 3 note that Win2000 has sent wct = 7
				 in some cases on responses. Four unspecified
				 words followed OptionalSupport */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__le16 OptionalSupport;	/* see below */
	__u16 ByteCount;
	unsigned char Service[1];	/* always ASCII, not Unicode */
	/* STRING NativeFileSystem */
} __attribute__((packed)) TCONX_RSP;

/* tree connect Flags */
#define DISCONNECT_TID          0x0001
#define TCON_EXTENDED_SECINFO   0x0008
/* OptionalSupport bits */
#define SMB_SUPPORT_SEARCH_BITS 0x0001	/* "must have" directory search bits
					 (exclusive searches supported) */
#define SMB_SHARE_IS_IN_DFS     0x0002

typedef struct smb_com_logoff_andx_req {
	struct smb_hdr hdr;	/* wct = 2 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__u16 AndXOffset;
	__u16 ByteCount;
} __attribute__((packed)) LOGOFF_ANDX_REQ;

typedef struct smb_com_logoff_andx_rsp {
	struct smb_hdr hdr;	/* wct = 2 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__u16 AndXOffset;
	__u16 ByteCount;
} __attribute__((packed)) LOGOFF_ANDX_RSP;

typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
					tree_connect PDU to effect disconnect */
					/* tdis is probably simplest SMB PDU */
	struct {
		struct smb_hdr hdr;	/* wct = 0 */
		__u16 ByteCount;	/* bcc = 0 */
	} __attribute__((packed)) req;
	struct {
		struct smb_hdr hdr;	/* wct = 0 */
		__u16 ByteCount;	/* bcc = 0 */
	} __attribute__((packed)) resp;
} __attribute__((packed)) TREE_DISCONNECT;

typedef struct smb_com_close_req {
	struct smb_hdr hdr;	/* wct = 3 */
	__u16 FileID;
	__u32 LastWriteTime;	/* should be zero or -1 */
	__u16 ByteCount;	/* 0 */
} __attribute__((packed)) CLOSE_REQ;

typedef struct smb_com_close_rsp {
	struct smb_hdr hdr;	/* wct = 0 */
	__u16 ByteCount;	/* bct = 0 */
} __attribute__((packed)) CLOSE_RSP;

typedef struct smb_com_findclose_req {
	struct smb_hdr hdr; /* wct = 1 */
	__u16 FileID;
	__u16 ByteCount;    /* 0 */
} __attribute__((packed)) FINDCLOSE_REQ;

/* OpenFlags */
#define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
#define REQ_OPLOCK         0x00000002
#define REQ_BATCHOPLOCK    0x00000004
#define REQ_OPENDIRONLY    0x00000008
#define REQ_EXTENDED_INFO  0x00000010

typedef struct smb_com_open_req {	/* also handles create */
	struct smb_hdr hdr;	/* wct = 24 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__u8 Reserved;		/* Must Be Zero */
	__le16 NameLength;
	__le32 OpenFlags;
	__le32 RootDirectoryFid;
	__le32 DesiredAccess;
	__le64 AllocationSize;
	__le32 FileAttributes;
	__le32 ShareAccess;
	__le32 CreateDisposition;
	__le32 CreateOptions;
	__le32 ImpersonationLevel;
	__u8 SecurityFlags;
	__le16 ByteCount;
	char fileName[1];
} __attribute__((packed)) OPEN_REQ;

/* open response: oplock levels */
#define OPLOCK_NONE  	 0
#define OPLOCK_EXCLUSIVE 1
#define OPLOCK_BATCH	 2
#define OPLOCK_READ	 3  /* level 2 oplock */

/* open response for CreateAction shifted left */
#define CIFS_CREATE_ACTION 0x20000 /* file created */

typedef struct smb_com_open_rsp {
	struct smb_hdr hdr;	/* wct = 34 BB */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__u8 OplockLevel;
	__u16 Fid;
	__le32 CreateAction;
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le32 FileAttributes;
	__le64 AllocationSize;
	__le64 EndOfFile;
	__le16 FileType;
	__le16 DeviceState;
	__u8 DirectoryFlag;
	__u16 ByteCount;	/* bct = 0 */
} __attribute__((packed)) OPEN_RSP;

/* format of legacy open request */
typedef struct smb_com_openx_req {
	struct smb_hdr	hdr;	/* wct = 15 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__le16 OpenFlags;
	__le16 Mode;
	__le16 Sattr; /* search attributes */
	__le16 FileAttributes;  /* dos attrs */
	__le32 CreateTime; /* os2 format */
	__le16 OpenFunction;
	__le32 EndOfFile;
	__le32 Timeout;
	__le32 Reserved;
	__le16  ByteCount;  /* file name follows */
	char   fileName[1];
} __attribute__((packed)) OPENX_REQ;

typedef struct smb_com_openx_rsp {
	struct smb_hdr	hdr;	/* wct = 15 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__u16  Fid;
	__le16 FileAttributes;
	__le32 LastWriteTime; /* os2 format */
	__le32 EndOfFile;
	__le16 Access;
	__le16 FileType;
	__le16 IPCState;
	__le16 Action;
	__u32  FileId;
	__u16  Reserved;
	__u16  ByteCount;
} __attribute__((packed)) OPENX_RSP;

/* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */

/* Legacy write request for older servers */
typedef struct smb_com_writex_req {
	struct smb_hdr hdr;     /* wct = 12 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__u16 Fid;
	__le32 OffsetLow;
	__u32 Reserved; /* Timeout */
	__le16 WriteMode; /* 1 = write through */
	__le16 Remaining;
	__le16 Reserved2;
	__le16 DataLengthLow;
	__le16 DataOffset;
	__le16 ByteCount;
	__u8 Pad;		/* BB check for whether padded to DWORD
				   boundary and optimum performance here */
	char Data[0];
} __attribute__((packed)) WRITEX_REQ;

typedef struct smb_com_write_req {
	struct smb_hdr hdr;	/* wct = 14 */
	__u8 AndXCommand;
	__u8 AndXReserved;
	__le16 AndXOffset;
	__u16 Fid;
	__le32 OffsetLow;