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sys: IRP_MJ_QUERY_INFORMATION: FileStreamInformation

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This commit is contained in:
Bill Zissimopoulos
2016-09-24 13:59:02 -07:00
parent b06e947e0e
commit 0c810c52fa
9 changed files with 447 additions and 28 deletions
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19
inc/winfsp/fsctl.h
View File

@ -106,6 +106,7 @@ enum
FspFsctlTransactLockControlKind,
FspFsctlTransactQuerySecurityKind,
FspFsctlTransactSetSecurityKind,
FspFsctlTransactQueryStreamInformationKind,
FspFsctlTransactKindCount,
};
enum
@ -142,7 +143,7 @@ typedef struct
UINT32 PersistentAcls:1; /* file system preserves and enforces access control lists */
UINT32 ReparsePoints:1; /* file system supports reparse points */
UINT32 ReparsePointsAccessCheck:1; /* file system performs reparse point access checks */
UINT32 NamedStreams:1; /* file system supports named streams (!!!: unimplemented) */
UINT32 NamedStreams:1; /* file system supports named streams */
UINT32 HardLinks:1; /* unimplemented; set to 0 */
UINT32 ExtendedAttributes:1; /* unimplemented; set to 0 */
UINT32 ReadOnlyVolume:1;
@ -184,6 +185,13 @@ typedef struct
WCHAR FileNameBuf[];
} FSP_FSCTL_DIR_INFO;
typedef struct
{
UINT16 Size;
UINT64 StreamSize;
UINT64 StreamAllocationSize;
WCHAR StreamNameBuf[];
} FSP_FSCTL_STREAM_INFO;
typedef struct
{
UINT16 Offset;
UINT16 Size;
@ -332,6 +340,11 @@ typedef struct
UINT64 AccessToken; /* request access token (HANDLE) */
FSP_FSCTL_TRANSACT_BUF SecurityDescriptor;
} SetSecurity;
struct
{
UINT64 UserContext;
UINT64 UserContext2;
} QueryStreamInformation;
} Req;
FSP_FSCTL_TRANSACT_BUF FileName; /* {Create,Cleanup,SetInformation/{...},QueryDirectory} */
FSP_FSCTL_DECLSPEC_ALIGN UINT8 Buffer[];
@ -401,6 +414,10 @@ typedef struct
{
FSP_FSCTL_TRANSACT_BUF SecurityDescriptor; /* Size==0 means no security descriptor returned */
} SetSecurity;
struct
{
FSP_FSCTL_TRANSACT_BUF Buffer;
} QueryStreamInformation;
} Rsp;
FSP_FSCTL_DECLSPEC_ALIGN UINT8 Buffer[];
} FSP_FSCTL_TRANSACT_RSP;

52
inc/winfsp/winfsp.h
View File

@ -773,12 +773,36 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode,
PWSTR FileName, PVOID Buffer, SIZE_T Size);
/**
* Get named streams information.
*
* @param FileSystem
* The file system on which this request is posted.
* @param Request
* The request posted by the kernel mode FSD.
* @param FileNode
* The file node of the file or directory to get stream information for.
* @param Buffer
* Pointer to a buffer that will receive the stream information.
* @param Length
* Length of buffer.
* @param PBytesTransferred [out]
* Pointer to a memory location that will receive the actual number of bytes stored.
* @return
* STATUS_SUCCESS or error code.
* @see
* FspFileSystemAddStreamInfo
*/
NTSTATUS (*GetStreamInfo)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode, PVOID Buffer, ULONG Length,
PULONG PBytesTransferred);
/*
* This ensures that this interface will always contain 64 function pointers.
* Please update when changing the interface as it is important for future compatibility.
*/
NTSTATUS (*Reserved[41])();
NTSTATUS (*Reserved[40])();
} FSP_FILE_SYSTEM_INTERFACE;
FSP_FSCTL_STATIC_ASSERT(sizeof(FSP_FILE_SYSTEM_INTERFACE) == 64 * sizeof(NTSTATUS (*)()),
"FSP_FILE_SYSTEM_INTERFACE must have 64 entries.");
@ -1010,6 +1034,8 @@ FSP_API NTSTATUS FspFileSystemOpQuerySecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpSetSecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpQueryStreamInformation(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
/*
* Helpers
@ -1150,6 +1176,30 @@ FSP_API NTSTATUS FspFileSystemResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
FSP_API NTSTATUS FspFileSystemCanReplaceReparsePoint(
PVOID CurrentReparseData, SIZE_T CurrentReparseDataSize,
PVOID ReplaceReparseData, SIZE_T ReplaceReparseDataSize);
/**
* Add named stream information to a buffer.
*
* This is a helper for implementing the GetStreamInfo operation.
*
* @param StreamInfo
* The stream information to add. A value of NULL acts as an EOF marker for a GetStreamInfo
* operation.
* @param Buffer
* Pointer to a buffer that will receive the stream information. This should contain
* the same value passed to the GetStreamInfo Buffer parameter.
* @param Length
* Length of buffer. This should contain the same value passed to the GetStreamInfo
* Length parameter.
* @param PBytesTransferred [out]
* Pointer to a memory location that will receive the actual number of bytes stored. This should
* contain the same value passed to the GetStreamInfo PBytesTransferred parameter.
* @return
* TRUE if the stream information was added, FALSE if there was not enough space to add it.
* @see
* GetStreamInfo
*/
FSP_API BOOLEAN FspFileSystemAddStreamInfo(FSP_FSCTL_STREAM_INFO *StreamInfo,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred);
/*
* Security