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sys,dll: DeviceControl operation

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This commit is contained in:
Bill Zissimopoulos
2018-05-04 13:56:20 -07:00
parent 7aadf259d9
commit 894ae7b8f3
10 changed files with 296 additions and 5 deletions
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20
inc/winfsp/fsctl.h
View File

@ -82,6 +82,8 @@ FSP_FSCTL_STATIC_ASSERT(FSP_FSCTL_VOLUME_NAME_SIZEMAX <= 260 * sizeof(WCHAR),
#define FSP_FSCTL_TRANSACT_REQ_TOKEN_HANDLE(T) ((HANDLE)((T) & 0xffffffff))
#define FSP_FSCTL_TRANSACT_REQ_TOKEN_PID(T) ((UINT32)(((T) >> 32) & 0xffffffff))
#define FSP_FSCTL_DEVICECONTROL_SIZEMAX (4 * 1024) /* must be < FSP_FSCTL_TRANSACT_{REQ,RSP}_SIZEMAX */
/* marshalling */
#pragma warning(push)
#pragma warning(disable:4200) /* zero-sized array in struct/union */
@ -154,11 +156,13 @@ enum
UINT32 AlwaysUseDoubleBuffering:1;\
UINT32 PassQueryDirectoryFileName:1; /* pass FileName during QueryDirectory (GetDirInfoByName) */\
UINT32 FlushAndPurgeOnCleanup:1; /* keeps file off "standby" list */\
UINT32 KmReservedFlags:1;\
UINT32 DeviceControl:1; /* support user-mode ioctl handling */\
/* user-mode flags */\
UINT32 UmFileContextIsUserContext2:1; /* user mode: FileContext parameter is UserContext2 */\
UINT32 UmFileContextIsFullContext:1; /* user mode: FileContext parameter is FullContext */\
UINT32 UmReservedFlags:14;\
UINT32 UmReservedFlags:6;\
/* additional kernel-mode flags */\
UINT32 KmReservedFlags:8;\
WCHAR Prefix[FSP_FSCTL_VOLUME_PREFIX_SIZE / sizeof(WCHAR)]; /* UNC prefix (\Server\Share) */\
WCHAR FileSystemName[FSP_FSCTL_VOLUME_FSNAME_SIZE / sizeof(WCHAR)];
#define FSP_FSCTL_VOLUME_PARAMS_V1_FIELD_DEFN\
@ -381,6 +385,14 @@ typedef struct
UINT16 TargetOnFileSystem; /* the target of the symbolic link is on this file system */
} FileSystemControl;
struct
{
UINT64 UserContext;
UINT64 UserContext2;
UINT32 IoControlCode;
FSP_FSCTL_TRANSACT_BUF Buffer;
UINT32 OutputLength;
} DeviceControl;
struct
{
UINT64 UserContext;
UINT64 UserContext2;
@ -466,6 +478,10 @@ typedef struct
FSP_FSCTL_TRANSACT_BUF Buffer;
} FileSystemControl;
struct
{
FSP_FSCTL_TRANSACT_BUF Buffer;
} DeviceControl;
struct
{
FSP_FSCTL_TRANSACT_BUF SecurityDescriptor;
} QuerySecurity;

33
inc/winfsp/winfsp.h
View File

@ -822,12 +822,41 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
NTSTATUS (*GetDirInfoByName)(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext, PWSTR FileName,
FSP_FSCTL_DIR_INFO *DirInfo);
/**
* Process control code.
*
* This function is called when a program uses the DeviceIoControl API.
*
* @param FileSystem
* The file system on which this request is posted.
* @param FileContext
* The file context of the file or directory to be controled.
* @param ControlCode
* The control code for the operation. This code must have a DeviceType with bit
* 0x8000 set and must have a TransferType of METHOD_BUFFERED.
* @param InputBuffer
* Pointer to a buffer that contains the input data.
* @param InputBufferLength
* Input data length.
* @param Buffer
* Pointer to a buffer that will receive the output data.
* @param Length
* Output data length.
* @param PBytesTransferred [out]
* Pointer to a memory location that will receive the actual number of bytes transferred.
* @return
* STATUS_SUCCESS or error code.
*/
NTSTATUS (*Control)(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext, UINT32 ControlCode,
PVOID InputBuffer, ULONG InputBufferLength,
PVOID OutputBuffer, ULONG OutputBufferLength, 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[39])();
NTSTATUS (*Reserved[38])();
} FSP_FILE_SYSTEM_INTERFACE;
FSP_FSCTL_STATIC_ASSERT(sizeof(FSP_FILE_SYSTEM_INTERFACE) == 64 * sizeof(NTSTATUS (*)()),
"FSP_FILE_SYSTEM_INTERFACE must have 64 entries.");
@ -1141,6 +1170,8 @@ FSP_API NTSTATUS FspFileSystemOpQueryDirectory(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpFileSystemControl(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpDeviceControl(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
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,