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dll: FSP_FILE_SYSTEM_INTERFACE method changes and C++ support

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This commit is contained in:
Bill Zissimopoulos 2016-01-13 12:15:03 -08:00
parent 5d558334cd
commit ebc8016787
3 changed files with 58 additions and 14 deletions
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16
inc/winfsp/fsctl.h
View File

@ -9,6 +9,10 @@
#include <devioctl.h>
#ifdef __cplusplus
extern "C" {
#endif
#define FSP_FSCTL_DISK_DEVICE_NAME "WinFsp.Disk"
#define FSP_FSCTL_NET_DEVICE_NAME "WinFsp.Net"
@ -191,7 +195,7 @@ static inline FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactProduceRequest(
FSP_FSCTL_TRANSACT_REQ *Request, SIZE_T RequestSize)
{
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_DEFAULT_ALIGN_UP(RequestSize);
return NextRequest;
return (FSP_FSCTL_TRANSACT_REQ *)NextRequest;
}
static inline FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
FSP_FSCTL_TRANSACT_REQ *Request, PVOID RequestBufEnd)
@ -200,7 +204,7 @@ static inline FSP_FSCTL_TRANSACT_REQ *FspFsctlTransactConsumeRequest(
sizeof(FSP_FSCTL_TRANSACT_REQ) > Request->Size)
return 0;
PVOID NextRequest = (PUINT8)Request + FSP_FSCTL_DEFAULT_ALIGN_UP(Request->Size);
return NextRequest <= RequestBufEnd ? NextRequest : 0;
return NextRequest <= RequestBufEnd ? (FSP_FSCTL_TRANSACT_REQ *)NextRequest : 0;
}
static inline BOOLEAN FspFsctlTransactCanProduceResponse(
FSP_FSCTL_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
@ -211,7 +215,7 @@ static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactProduceResponse(
FSP_FSCTL_TRANSACT_RSP *Response, SIZE_T ResponseSize)
{
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_DEFAULT_ALIGN_UP(ResponseSize);
return NextResponse;
return (FSP_FSCTL_TRANSACT_RSP *)NextResponse;
}
static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
FSP_FSCTL_TRANSACT_RSP *Response, PVOID ResponseBufEnd)
@ -220,7 +224,7 @@ static inline FSP_FSCTL_TRANSACT_RSP *FspFsctlTransactConsumeResponse(
sizeof(FSP_FSCTL_TRANSACT_RSP) > Response->Size)
return 0;
PVOID NextResponse = (PUINT8)Response + FSP_FSCTL_DEFAULT_ALIGN_UP(Response->Size);
return NextResponse <= ResponseBufEnd ? NextResponse : 0;
return NextResponse <= ResponseBufEnd ? (FSP_FSCTL_TRANSACT_RSP *)NextResponse : 0;
}
#if !defined(WINFSP_SYS_INTERNAL)
@ -233,4 +237,8 @@ FSP_API NTSTATUS FspFsctlTransact(HANDLE VolumeHandle,
PVOID RequestBuf, SIZE_T *PRequestBufSize);
#endif
#ifdef __cplusplus
}
#endif
#endif

11
inc/winfsp/winfsp.h
View File

@ -21,6 +21,10 @@
#include <winfsp/fsctl.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* File System
*/
@ -46,9 +50,12 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
PSECURITY_DESCRIPTOR SecurityDescriptor, SIZE_T *PSecurityDescriptorSize);
NTSTATUS (*Create)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PWSTR FileName, BOOLEAN CaseSensitive, DWORD CreateOptions,
DWORD FileAttributes, PSECURITY_DESCRIPTOR SecurityDescriptor, UINT64 AllocationSize,
FSP_FILE_NODE_INFO *Info);
NTSTATUS (*Open)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PWSTR FileName, BOOLEAN CaseSensitive, DWORD CreateOptions,
FSP_FILE_NODE_INFO *Info);
NTSTATUS (*Overwrite)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
@ -179,4 +186,8 @@ FSP_API VOID FspPathCombine(PWSTR Prefix, PWSTR Suffix);
FSP_API NTSTATUS FspNtStatusFromWin32(DWORD Error);
FSP_API VOID FspDebugLog(const char *format, ...);
#ifdef __cplusplus
}
#endif
#endif

45
src/dll/create.c
View File

@ -41,9 +41,9 @@ FSP_API NTSTATUS FspAccessCheck(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN CheckParentDirectory, BOOLEAN AllowTraverseCheck,
DWORD DesiredAccess, PDWORD PGrantedAccess)
{
if (0 == FileSystem->Interface->GetSecurity)
if (!Request->Req.Create.UserMode || 0 == FileSystem->Interface->GetSecurity)
{
*PGrantedAccess = DesiredAccess;
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ? FILE_ALL_ACCESS : DesiredAccess;
return STATUS_SUCCESS;
}
@ -223,7 +223,12 @@ static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FileSystem->Interface->Create(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Create(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes,
(PSECURITY_DESCRIPTOR)(Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset),
Request->Req.Create.AllocationSize,
&NodeInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
@ -242,7 +247,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOpen(FSP_FILE_SYSTEM *FileSystem,
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FileSystem->Interface->Open(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
@ -268,7 +275,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
if (!Create)
{
Result = FileSystem->Interface->Open(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
if (!NT_SUCCESS(Result))
{
if (STATUS_OBJECT_NAME_NOT_FOUND != Result)
@ -283,7 +292,12 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FileSystem->Interface->Create(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Create(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes,
(PSECURITY_DESCRIPTOR)(Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset),
Request->Req.Create.AllocationSize,
&NodeInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
@ -304,7 +318,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwrite(FSP_FILE_SYSTEM *FileSystem,
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FileSystem->Interface->Open(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
@ -330,7 +346,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
if (!Create)
{
Result = FileSystem->Interface->Open(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
if (!NT_SUCCESS(Result))
{
if (STATUS_OBJECT_NAME_NOT_FOUND != Result)
@ -345,7 +363,12 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FileSystem->Interface->Create(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Create(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes,
(PSECURITY_DESCRIPTOR)(Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset),
Request->Req.Create.AllocationSize,
&NodeInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
@ -369,7 +392,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *F
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
FspPathSuffix((PWSTR)Request->Buffer, &Parent, &Suffix);
Result = FileSystem->Interface->Open(FileSystem, Request, &NodeInfo);
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
FspPathCombine((PWSTR)Request->Buffer, Suffix);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);