cifspdu.h

Linux内核自带的cifs模块

	__u16 ByteCount;
	__u8 Pad;	/* may be three bytes? *//* followed by data area */
} __attribute__((packed)) TRANSACTION2_QFSI_RSP;

typedef struct whoami_rsp_data { /* Query level 0x202 */
	__u32 flags; /* 0 = Authenticated user 1 = GUEST */
	__u32 mask; /* which flags bits server understands ie 0x0001 */
	__u64 unix_user_id;
	__u64 unix_user_gid;
	__u32 number_of_supplementary_gids; /* may be zero */
	__u32 number_of_sids; /* may be zero */
	__u32 length_of_sid_array; /* in bytes - may be zero */
	__u32 pad; /* reserved - MBZ */
	/* __u64 gid_array[0]; */  /* may be empty */
	/* __u8 * psid_list */  /* may be empty */
} __attribute__((packed)) WHOAMI_RSP_DATA;

/* SETFSInfo Levels */
#define SMB_SET_CIFS_UNIX_INFO    0x200
typedef struct smb_com_transaction2_setfsi_req {
	struct smb_hdr hdr;	/* wct = 15 */
	__le16 TotalParameterCount;
	__le16 TotalDataCount;
	__le16 MaxParameterCount;
	__le16 MaxDataCount;
	__u8 MaxSetupCount;
	__u8 Reserved;
	__le16 Flags;
	__le32 Timeout;
	__u16 Reserved2;
	__le16 ParameterCount;	/* 4 */
	__le16 ParameterOffset;
	__le16 DataCount;	/* 12 */
	__le16 DataOffset;
	__u8 SetupCount;	/* one */
	__u8 Reserved3;
	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
	__le16 ByteCount;
	__u8 Pad;
	__u16 FileNum;		/* Parameters start. */
	__le16 InformationLevel;/* Parameters end. */
	__le16 ClientUnixMajor; /* Data start. */
	__le16 ClientUnixMinor;
	__le64 ClientUnixCap;   /* Data end */
} __attribute__((packed)) TRANSACTION2_SETFSI_REQ;

typedef struct smb_com_transaction2_setfsi_rsp {
	struct smb_hdr hdr;	/* wct = 10 */
	struct trans2_resp t2;
	__u16 ByteCount;
} __attribute__((packed)) TRANSACTION2_SETFSI_RSP;


typedef struct smb_com_transaction2_get_dfs_refer_req {
	struct smb_hdr hdr;	/* wct = 15 */
	__le16 TotalParameterCount;
	__le16 TotalDataCount;
	__le16 MaxParameterCount;
	__le16 MaxDataCount;
	__u8 MaxSetupCount;
	__u8 Reserved;
	__le16 Flags;
	__le32 Timeout;
	__u16 Reserved2;
	__le16 ParameterCount;
	__le16 ParameterOffset;
	__le16 DataCount;
	__le16 DataOffset;
	__u8 SetupCount;
	__u8 Reserved3;
	__le16 SubCommand;	/* one setup word */
	__le16 ByteCount;
	__u8 Pad[3];		/* Win2K has sent 0x0F01 (max response length
				   perhaps?) followed by one byte pad - doesn't
				   seem to matter though */
	__le16 MaxReferralLevel;
	char RequestFileName[1];
} __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;

typedef struct dfs_referral_level_3 {
	__le16 VersionNumber;
	__le16 ReferralSize;
	__le16 ServerType;	/* 0x0001 = CIFS server */
	__le16 ReferralFlags;	/* or proximity - not clear which since it is
				   always set to zero - SNIA spec says 0x01
				   means strip off PathConsumed chars before
				   submitting RequestFileName to remote node */
	__le16 TimeToLive;
	__le16 Proximity;
	__le16 DfsPathOffset;
	__le16 DfsAlternatePathOffset;
	__le16 NetworkAddressOffset;
} __attribute__((packed)) REFERRAL3;

typedef struct smb_com_transaction_get_dfs_refer_rsp {
	struct smb_hdr hdr;	/* wct = 10 */
	struct trans2_resp t2;
	__u16 ByteCount;
	__u8 Pad;
	__le16 PathConsumed;
	__le16 NumberOfReferrals;
	__le16 DFSFlags;
	__u16 Pad2;
	REFERRAL3 referrals[1];	/* array of level 3 dfs_referral structures */
	/* followed by the strings pointed to by the referral structures */
} __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_RSP;

/* DFS Flags */
#define DFSREF_REFERRAL_SERVER  0x0001
#define DFSREF_STORAGE_SERVER   0x0002

/* IOCTL information */
/*
 * List of ioctl function codes that look to be of interest to remote clients
 * like this one.  Need to do some experimentation to make sure they all work
 * remotely.  Some of the following, such as the encryption/compression ones
 * would be invoked from tools via a specialized hook into the VFS rather
 * than via the standard vfs entry points
 */
#define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
#define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004
#define FSCTL_REQUEST_BATCH_OPLOCK   0x00090008
#define FSCTL_LOCK_VOLUME            0x00090018
#define FSCTL_UNLOCK_VOLUME          0x0009001C
#define FSCTL_GET_COMPRESSION        0x0009003C
#define FSCTL_SET_COMPRESSION        0x0009C040
#define FSCTL_REQUEST_FILTER_OPLOCK  0x0009008C
#define FSCTL_FILESYS_GET_STATISTICS 0x00090090
#define FSCTL_SET_REPARSE_POINT      0x000900A4
#define FSCTL_GET_REPARSE_POINT      0x000900A8
#define FSCTL_DELETE_REPARSE_POINT   0x000900AC
#define FSCTL_SET_SPARSE             0x000900C4
#define FSCTL_SET_ZERO_DATA          0x000900C8
#define FSCTL_SET_ENCRYPTION         0x000900D7
#define FSCTL_ENCRYPTION_FSCTL_IO    0x000900DB
#define FSCTL_WRITE_RAW_ENCRYPTED    0x000900DF
#define FSCTL_READ_RAW_ENCRYPTED     0x000900E3
#define FSCTL_SIS_COPYFILE           0x00090100
#define FSCTL_SIS_LINK_FILES         0x0009C104

#define IO_REPARSE_TAG_MOUNT_POINT   0xA0000003
#define IO_REPARSE_TAG_HSM           0xC0000004
#define IO_REPARSE_TAG_SIS           0x80000007

/*
 ************************************************************************
 * All structs for everything above the SMB PDUs themselves
 * (such as the T2 level specific data) go here
 ************************************************************************
 */

/*
 * Information on a server
 */

struct serverInfo {
	char name[16];
	unsigned char versionMajor;
	unsigned char versionMinor;
	unsigned long type;
	unsigned int commentOffset;
} __attribute__((packed));

/*
 * The following structure is the format of the data returned on a NetShareEnum
 * with level "90" (x5A)
 */

struct shareInfo {
	char shareName[13];
	char pad;
	unsigned short type;
	unsigned int commentOffset;
} __attribute__((packed));

struct aliasInfo {
	char aliasName[9];
	char pad;
	unsigned int commentOffset;
	unsigned char type[2];
} __attribute__((packed));

struct aliasInfo92 {
	int aliasNameOffset;
	int serverNameOffset;
	int shareNameOffset;
} __attribute__((packed));

typedef struct {
	__le64 TotalAllocationUnits;
	__le64 FreeAllocationUnits;
	__le32 SectorsPerAllocationUnit;
	__le32 BytesPerSector;
} __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */

typedef struct {
	__le32 fsid;
	__le32 SectorsPerAllocationUnit;
	__le32 TotalAllocationUnits;
	__le32 FreeAllocationUnits;
	__le16  BytesPerSector;
} __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;

typedef struct {
	__le16 MajorVersionNumber;
	__le16 MinorVersionNumber;
	__le64 Capability;
} __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/

/* Version numbers for CIFS UNIX major and minor. */
#define CIFS_UNIX_MAJOR_VERSION 1
#define CIFS_UNIX_MINOR_VERSION 0

/* Linux/Unix extensions capability flags */
#define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
#define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
#define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
#define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
#define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
#define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
						      calls including posix open
						      and posix unlink */
#define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
						      to 0xFFFF00 */
#define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080

#ifdef CONFIG_CIFS_POSIX
/* Can not set pathnames cap yet until we send new posix create SMB since
   otherwise server can treat such handles opened with older ntcreatex
   (by a new client which knows how to send posix path ops)
   as non-posix handles (can affect write behavior with byte range locks.
   We can add back in POSIX_PATH_OPS cap when Posix Create/Mkdir finished */
/* #define CIFS_UNIX_CAP_MASK              0x000000fb */
#define CIFS_UNIX_CAP_MASK              0x000000db
#else
#define CIFS_UNIX_CAP_MASK              0x00000013
#endif /* CONFIG_CIFS_POSIX */


#define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */

typedef struct {
	/* For undefined recommended transfer size return -1 in that field */
	__le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
	__le32 BlockSize;
    /* The next three fields are in terms of the block size.
	(above). If block size is unknown, 4096 would be a
	reasonable block size for a server to report.
	Note that returning the blocks/blocksavail removes need
	to make a second call (to QFSInfo level 0x103 to get this info.
	UserBlockAvail is typically less than or equal to BlocksAvail,
	if no distinction is made return the same value in each */
	__le64 TotalBlocks;
	__le64 BlocksAvail;       /* bfree */
	__le64 UserBlocksAvail;   /* bavail */
    /* For undefined Node fields or FSID return -1 */
	__le64 TotalFileNodes;
	__le64 FreeFileNodes;
	__le64 FileSysIdentifier;   /* fsid */
	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
} __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;

/* DeviceType Flags */
#define FILE_DEVICE_CD_ROM              0x00000002
#define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
#define FILE_DEVICE_DFS                 0x00000006
#define FILE_DEVICE_DISK                0x00000007
#define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
#define FILE_DEVICE_FILE_SYSTEM         0x00000009
#define FILE_DEVICE_NAMED_PIPE          0x00000011
#define FILE_DEVICE_NETWORK             0x00000012
#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
#define FILE_DEVICE_NULL                0x00000015
#define FILE_DEVICE_PARALLEL_PORT       0x00000016
#define FILE_DEVICE_PRINTER             0x00000018
#define FILE_DEVICE_SERIAL_PORT         0x0000001b
#define FILE_DEVICE_STREAMS             0x0000001e
#define FILE_DEVICE_TAPE                0x0000001f
#define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
#define FILE_DEVICE_VIRTUAL_DISK        0x00000024
#define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028

typedef struct {
	__le32 DeviceType;
	__le32 DeviceCharacteristics;
} __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */

typedef struct {
	__le32 Attributes;
	__le32 MaxPathNameComponentLength;
	__le32 FileSystemNameLen;
	char FileSystemName[52]; /* do not have to save this - get subset? */
} __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;

/******************************************************************************/
/* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
/******************************************************************************/
typedef struct { /* data block encoding of response to level 263 QPathInfo */
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le32 Attributes;
	__u32 Pad1;
	__le64 AllocationSize;
	__le64 EndOfFile;	/* size ie offset to first free byte in file */
	__le32 NumberOfLinks;	/* hard links */
	__u8 DeletePending;
	__u8 Directory;
	__u16 Pad2;
	__u64 IndexNumber;
	__le32 EASize;
	__le32 AccessFlags;
	__u64 IndexNumber1;
	__le64 CurrentByteOffset;
	__le32 Mode;
	__le32 AlignmentRequirement;
	__le32 FileNameLength;
	char FileName[1];
} __attribute__((packed)) FILE_ALL_INFO;	/* level 0x107 QPathInfo */

/* defines for enumerating possible values of the Unix type field below */
#define UNIX_FILE      0
#define UNIX_DIR       1
#define UNIX_SYMLINK   2
#define UNIX_CHARDEV   3
#define UNIX_BLOCKDEV  4
#define UNIX_FIFO      5
#define UNIX_SOCKET    6
typedef struct {
	__le64 EndOfFile;
	__le64 NumOfBytes;
	__le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
	__le64 LastAccessTime;
	__le64 LastModificationTime;
	__le64 Uid;
	__le64 Gid;
	__le32 Type;
	__le64 DevMajor;
	__le64 DevMinor;
	__u64 UniqueId;
	__le64 Permissions;
	__le64 Nlinks;
} __attribute__((packed)) FILE_UNIX_BASIC_INFO;	/* level 0x200 QPathInfo */

typedef struct {
	char LinkDest[1];
} __attribute__((packed)) FILE_UNIX_LINK_INFO;	/* level 0x201 QPathInfo */

/* The following three structures are needed only for
	setting time to NT4 and some older servers via
	the primitive DOS time format */
typedef struct {
	__u16 Day:5;
	__u16 Month:4;
	__u16 Year:7;
} __attribute__((packed)) SMB_DATE;

typedef struct {
	__u16 TwoSeconds:5;
	__u16 Minutes:6;
	__u16 Hours:5;
} __attribute__((packed)) SMB_TIME;

typedef struct {
	__le16 CreationDate; /* SMB Date see above */
	__le16 CreationTime; /* SMB Time */
	__le16 LastAccessDate;
	__le16 LastAccessTime;
	__le16 LastWriteDate;
	__le16 LastWriteTime;
	__le32 DataSize; /* File Size (EOF) */
	__le32 AllocationSize;
	__le16 Attributes; /* verify not u32 */
	__le32 EASize;
} __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */

typedef struct {
	__le64 CreationTime;
	__le64 LastAccessTime;
	__le64 LastWriteTime;
	__le64 ChangeTime;
	__le32 Attributes;
	__u32 Pad;
} __attribute__((packed)) FILE_BASIC_INFO;	/* size info, level 0x101 */

struct file_allocation_info {
	__le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
} __attribute__((packed));	/* size used on disk, for level 0x103 for set,
				   0x105 for query */

struct file_end_of_file_info {
	__le64 FileSize;		/* offset to end of file */
} __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */

struct file_alt_name_info {
	__u8   alt_name[1];
} __attribute__((packed));      /* level 0x0108 */

struct file_stream_info {
	__le32 number_of_streams;  /* BB check sizes and verify location */
	/* followed by info on streams themselves
		u64 size;
		u64 allocation_size
		stream info */
};      /* level 0x109 */

struct file_compression_info {
	__le64 compressed_size;
	__le16 format;
	__u8   unit_shift;
	__u8   ch_shift;
	__u8   cl_shift;
	__u8   pad[3];
} __attribute__((packed));      /* level 0x10b */

/* POSIX ACL set/query path info structures */
#define CIFS_ACL_VERSION 1
struct cifs