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dll: WIP

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This commit is contained in:
Bill Zissimopoulos 2016-01-03 23:01:10 -08:00
parent 2a1fc2a83d
commit 761e0a1651
2 changed files with 52 additions and 1 deletions
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2
inc/winfsp/winfsp.h
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@ -56,6 +56,8 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode); FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode);
NTSTATUS (*FileOverwrite)(FSP_FILE_SYSTEM *FileSystem, NTSTATUS (*FileOverwrite)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode); FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode);
NTSTATUS (*FileOpenTargetDirectory)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode, PBOOLEAN PFileExists);
NTSTATUS (*FileClose)(FSP_FILE_SYSTEM *FileSystem, NTSTATUS (*FileClose)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode); FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode);
} FSP_FILE_SYSTEM_INTERFACE; } FSP_FILE_SYSTEM_INTERFACE;

51
src/dll/create.c
View File

@ -289,14 +289,63 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
return FspFileSystemSendResponse(FileSystem, &Response); return FspFileSystemSendResponse(FileSystem, &Response);
} }
static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
if (FspIsRootDirectory((PWSTR)Request->Buffer))
return STATUS_ACCESS_DENIED;
NTSTATUS Result;
DWORD GrantedAccess;
FSP_FILE_NODE *FileNode;
BOOLEAN FileExists;
FSP_FSCTL_TRANSACT_RSP Response;
PWSTR Path, Suffix;
FspPathSuffix((PWSTR)Request->Buffer, &Path, &Suffix);
Result = FspAccessCheck(FileSystem, Request, TRUE,
Request->Req.Create.DesiredAccess, &GrantedAccess);
FspPathCombine((PWSTR)Request->Buffer, Suffix);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FileSystem->Interface->FileOpenTargetDirectory(FileSystem, Request,
&FileNode, &FileExists);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
Result = FspShareCheck(FileSystem, GrantedAccess, Request->Req.Create.ShareAccess, FileNode);
if (!NT_SUCCESS(Result))
{
if (0 != FileSystem->Interface->FileClose)
FileSystem->Interface->FileClose(FileSystem, Request, FileNode);
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
memset(&Response, 0, sizeof Response);
Response.Size = sizeof Response;
Response.Kind = Request->Kind;
Response.Hint = Request->Hint;
Response.IoStatus.Status = STATUS_SUCCESS;
Response.IoStatus.Information = FileExists ? FILE_EXISTS : FILE_DOES_NOT_EXIST;
Response.Rsp.Create.Opened.UserContext = (UINT_PTR)FileNode;
Response.Rsp.Create.Opened.GrantedAccess = GrantedAccess;
return FspFileSystemSendResponse(FileSystem, &Response);
}
FSP_API NTSTATUS FspFileSystemOpCreate(FSP_FILE_SYSTEM *FileSystem, FSP_API NTSTATUS FspFileSystemOpCreate(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request) FSP_FSCTL_TRANSACT_REQ *Request)
{ {
if (0 == FileSystem->Interface->FileCreate || if (0 == FileSystem->Interface->FileCreate ||
0 == FileSystem->Interface->FileOpen || 0 == FileSystem->Interface->FileOpen ||
0 == FileSystem->Interface->FileOverwrite) 0 == FileSystem->Interface->FileOverwrite ||
0 == FileSystem->Interface->FileOpenTargetDirectory)
return FspFileSystemSendResponseWithStatus(FileSystem, Request, STATUS_INVALID_DEVICE_REQUEST); return FspFileSystemSendResponseWithStatus(FileSystem, Request, STATUS_INVALID_DEVICE_REQUEST);
if (Request->Req.Create.OpenTargetDirectory)
return FspFileSystemOpCreate_FileOpenTargetDirectory(FileSystem, Request);
switch ((Request->Req.Create.CreateOptions >> 24) & 0xff) switch ((Request->Req.Create.CreateOptions >> 24) & 0xff)
{ {
case FILE_CREATE: case FILE_CREATE: