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fsctl: FSP_FSCTL_FILE_INFO and related changes

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This commit is contained in:
Bill Zissimopoulos
2016-01-22 23:00:25 -08:00
parent 2afa957feb
commit af36418f43
7 changed files with 117 additions and 134 deletions
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97
src/dll/create.c
View File

@@ -20,7 +20,7 @@ FSP_API PGENERIC_MAPPING FspGetFileGenericMapping(VOID)
}
static NTSTATUS FspGetSecurity(FSP_FILE_SYSTEM *FileSystem,
PWSTR FileName, PDWORD PFileAttributes,
PWSTR FileName, PUINT32 PFileAttributes,
PSECURITY_DESCRIPTOR *PSecurityDescriptor, SIZE_T *PSecurityDescriptorSize)
{
for (;;)
@@ -40,7 +40,7 @@ static NTSTATUS FspGetSecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
BOOLEAN CheckParentDirectory, BOOLEAN AllowTraverseCheck,
DWORD DesiredAccess, PDWORD PGrantedAccess,
UINT32 DesiredAccess, PUINT32 PGrantedAccess,
PSECURITY_DESCRIPTOR *PSecurityDescriptor)
{
*PGrantedAccess = 0;
@@ -57,13 +57,13 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
NTSTATUS Result;
PWSTR Parent, Suffix, Prefix, Remain;
DWORD FileAttributes;
UINT32 FileAttributes;
PSECURITY_DESCRIPTOR SecurityDescriptor = 0;
SIZE_T SecurityDescriptorSize;
UINT8 PrivilegeSetBuf[sizeof(PRIVILEGE_SET) + 15 * sizeof(LUID_AND_ATTRIBUTES)];
PPRIVILEGE_SET PrivilegeSet = (PVOID)PrivilegeSetBuf;
DWORD PrivilegeSetLength = sizeof PrivilegeSetBuf;
DWORD TraverseAccess;
UINT32 TraverseAccess;
BOOL AccessStatus;
if (CheckParentDirectory)
@@ -234,7 +234,7 @@ FSP_API VOID FspDeleteSecurityDescriptor(PSECURITY_DESCRIPTOR SecurityDescriptor
static inline
NTSTATUS FspFileSystemCreateCheck(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
BOOLEAN AllowTraverseCheck, PDWORD PGrantedAccess,
BOOLEAN AllowTraverseCheck, PUINT32 PGrantedAccess,
PSECURITY_DESCRIPTOR *PSecurityDescriptor)
{
NTSTATUS Result;
@@ -255,7 +255,7 @@ NTSTATUS FspFileSystemCreateCheck(FSP_FILE_SYSTEM *FileSystem,
static inline
NTSTATUS FspFileSystemOpenCheck(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
BOOLEAN AllowTraverseCheck, PDWORD PGrantedAccess)
BOOLEAN AllowTraverseCheck, PUINT32 PGrantedAccess)
{
NTSTATUS Result;
@@ -275,7 +275,7 @@ NTSTATUS FspFileSystemOpenCheck(FSP_FILE_SYSTEM *FileSystem,
static inline
NTSTATUS FspFileSystemOverwriteCheck(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
BOOLEAN AllowTraverseCheck, PDWORD PGrantedAccess)
BOOLEAN AllowTraverseCheck, PUINT32 PGrantedAccess)
{
NTSTATUS Result;
BOOLEAN Supersede = FILE_SUPERSEDE == ((Request->Req.Create.CreateOptions >> 24) & 0xff);
@@ -299,9 +299,10 @@ static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
NTSTATUS Result;
DWORD GrantedAccess;
UINT32 GrantedAccess;
PSECURITY_DESCRIPTOR ParentDescriptor, ObjectDescriptor;
FSP_FILE_NODE_INFO NodeInfo;
PVOID FileNode;
FSP_FSCTL_FILE_INFO FileInfo;
Result = FspFileSystemCreateCheck(FileSystem, Request, TRUE, &GrantedAccess, &ParentDescriptor);
if (!NT_SUCCESS(Result))
@@ -315,21 +316,22 @@ static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
Result = FileSystem->Interface->Create(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
&NodeInfo);
&FileNode, &FileInfo);
FspDeleteSecurityDescriptor(ObjectDescriptor, FspAssignSecurity);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
return FspFileSystemSendCreateResponse(FileSystem, Request,
FILE_CREATED, &NodeInfo, GrantedAccess);
FILE_CREATED, FileNode, GrantedAccess, &FileInfo);
}
static NTSTATUS FspFileSystemOpCreate_FileOpen(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
NTSTATUS Result;
DWORD GrantedAccess;
FSP_FILE_NODE_INFO NodeInfo;
UINT32 GrantedAccess;
PVOID FileNode;
FSP_FSCTL_FILE_INFO FileInfo;
Result = FspFileSystemOpenCheck(FileSystem, Request, TRUE, &GrantedAccess);
if (!NT_SUCCESS(Result))
@@ -337,21 +339,22 @@ static NTSTATUS FspFileSystemOpCreate_FileOpen(FSP_FILE_SYSTEM *FileSystem,
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
&FileNode, &FileInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
return FspFileSystemSendCreateResponse(FileSystem, Request,
FILE_OPENED, &NodeInfo, GrantedAccess);
FILE_OPENED, FileNode, GrantedAccess, &FileInfo);
}
static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
NTSTATUS Result;
DWORD GrantedAccess;
UINT32 GrantedAccess;
PSECURITY_DESCRIPTOR ParentDescriptor, ObjectDescriptor;
FSP_FILE_NODE_INFO NodeInfo;
PVOID FileNode;
FSP_FSCTL_FILE_INFO FileInfo;
BOOLEAN Create = FALSE;
Result = FspFileSystemOpenCheck(FileSystem, Request, TRUE, &GrantedAccess);
@@ -366,7 +369,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
{
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
&FileNode, &FileInfo);
if (!NT_SUCCESS(Result))
{
if (STATUS_OBJECT_NAME_NOT_FOUND != Result)
@@ -389,22 +392,23 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
Result = FileSystem->Interface->Create(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
&NodeInfo);
&FileNode, &FileInfo);
FspDeleteSecurityDescriptor(ObjectDescriptor, FspAssignSecurity);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
return FspFileSystemSendCreateResponse(FileSystem, Request,
Create ? FILE_CREATED : FILE_OPENED, &NodeInfo, GrantedAccess);
Create ? FILE_CREATED : FILE_OPENED, FileNode, GrantedAccess, &FileInfo);
}
static NTSTATUS FspFileSystemOpCreate_FileOverwrite(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
NTSTATUS Result;
DWORD GrantedAccess;
FSP_FILE_NODE_INFO NodeInfo;
UINT32 GrantedAccess;
PVOID FileNode;
FSP_FSCTL_FILE_INFO FileInfo;
BOOLEAN Supersede = FILE_SUPERSEDE == ((Request->Req.Create.CreateOptions >> 24) & 0xff);
Result = FspFileSystemOverwriteCheck(FileSystem, Request, TRUE, &GrantedAccess);
@@ -413,21 +417,22 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwrite(FSP_FILE_SYSTEM *FileSystem,
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
&FileNode, &FileInfo);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
return FspFileSystemSendCreateResponse(FileSystem, Request,
Supersede ? FILE_SUPERSEDED : FILE_OVERWRITTEN, &NodeInfo, GrantedAccess);
Supersede ? FILE_SUPERSEDED : FILE_OVERWRITTEN, FileNode, GrantedAccess, &FileInfo);
}
static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
NTSTATUS Result;
DWORD GrantedAccess;
UINT32 GrantedAccess;
PSECURITY_DESCRIPTOR ParentDescriptor, ObjectDescriptor;
FSP_FILE_NODE_INFO NodeInfo;
PVOID FileNode;
FSP_FSCTL_FILE_INFO FileInfo;
BOOLEAN Create = FALSE;
Result = FspFileSystemOverwriteCheck(FileSystem, Request, TRUE, &GrantedAccess);
@@ -442,7 +447,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
{
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
&FileNode, &FileInfo);
if (!NT_SUCCESS(Result))
{
if (STATUS_OBJECT_NAME_NOT_FOUND != Result)
@@ -465,14 +470,14 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
Result = FileSystem->Interface->Create(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
&NodeInfo);
&FileNode, &FileInfo);
FspDeleteSecurityDescriptor(ObjectDescriptor, FspAssignSecurity);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
return FspFileSystemSendCreateResponse(FileSystem, Request,
Create ? FILE_CREATED : FILE_OVERWRITTEN, &NodeInfo, GrantedAccess);
Create ? FILE_CREATED : FILE_OVERWRITTEN, FileNode, GrantedAccess, &FileInfo);
}
static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *FileSystem,
@@ -480,8 +485,9 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *F
{
NTSTATUS Result;
PWSTR Parent, Suffix;
DWORD GrantedAccess;
FSP_FILE_NODE_INFO NodeInfo;
UINT32 GrantedAccess;
PVOID FileNode;
FSP_FSCTL_FILE_INFO FileInfo;
UINT_PTR Information;
Result = FspAccessCheck(FileSystem, Request, TRUE, TRUE,
@@ -492,7 +498,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *F
FspPathSuffix((PWSTR)Request->Buffer, &Parent, &Suffix);
Result = FileSystem->Interface->Open(FileSystem, Request,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
&NodeInfo);
&FileNode, &FileInfo);
FspPathCombine((PWSTR)Request->Buffer, Suffix);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
@@ -505,7 +511,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenTargetDirectory(FSP_FILE_SYSTEM *F
}
return FspFileSystemSendCreateResponse(FileSystem, Request,
Information, &NodeInfo, GrantedAccess);
Information, FileNode, GrantedAccess, &FileInfo);
}
FSP_API NTSTATUS FspFileSystemOpCreate(FSP_FILE_SYSTEM *FileSystem,
@@ -542,13 +548,13 @@ FSP_API NTSTATUS FspFileSystemOpOverwrite(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
NTSTATUS Result;
FSP_FILE_SIZE_INFO SizeInfo;
FSP_FSCTL_FILE_INFO FileInfo;
Result = FileSystem->Interface->Overwrite(FileSystem, Request,
(PVOID)Request->Req.Overwrite.UserContext,
Request->Req.Overwrite.FileAttributes,
Request->Req.Overwrite.Supersede,
&SizeInfo);
&FileInfo);
if (!NT_SUCCESS(Result))
{
if (0 != FileSystem->Interface->Close)
@@ -557,12 +563,12 @@ FSP_API NTSTATUS FspFileSystemOpOverwrite(FSP_FILE_SYSTEM *FileSystem,
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
return FspFileSystemSendOverwriteResponse(FileSystem, Request, &SizeInfo);
return FspFileSystemSendOverwriteResponse(FileSystem, Request, &FileInfo);
}
FSP_API NTSTATUS FspFileSystemSendCreateResponse(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, UINT_PTR Information,
const FSP_FILE_NODE_INFO *NodeInfo, DWORD GrantedAccess)
PVOID FileNode, UINT32 GrantedAccess, const FSP_FSCTL_FILE_INFO *FileInfo)
{
FSP_FSCTL_TRANSACT_RSP Response;
@@ -572,23 +578,15 @@ FSP_API NTSTATUS FspFileSystemSendCreateResponse(FSP_FILE_SYSTEM *FileSystem,
Response.Hint = Request->Hint;
Response.IoStatus.Status = STATUS_SUCCESS;
Response.IoStatus.Information = Information;
Response.Rsp.Create.Opened.UserContext = (UINT_PTR)NodeInfo->FileNode;
Response.Rsp.Create.Opened.FileAttributes = NodeInfo->FileAttributes;
Response.Rsp.Create.Opened.ReparseTag = NodeInfo->ReparseTag;
Response.Rsp.Create.Opened.AllocationSize = NodeInfo->AllocationSize;
Response.Rsp.Create.Opened.FileSize = NodeInfo->FileSize;
Response.Rsp.Create.Opened.CreationTime = NodeInfo->CreationTime;
Response.Rsp.Create.Opened.LastAccessTime = NodeInfo->LastAccessTime;
Response.Rsp.Create.Opened.LastWriteTime = NodeInfo->LastWriteTime;
Response.Rsp.Create.Opened.ChangeTime = NodeInfo->ChangeTime;
Response.Rsp.Create.Opened.IndexNumber = NodeInfo->IndexNumber;
Response.Rsp.Create.Opened.UserContext = (UINT_PTR)FileNode;
Response.Rsp.Create.Opened.GrantedAccess = GrantedAccess;
memcpy(&Response.Rsp.Create.Opened.FileInfo, FileInfo, sizeof *FileInfo);
return FspFileSystemSendResponse(FileSystem, &Response);
}
FSP_API NTSTATUS FspFileSystemSendOverwriteResponse(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
const FSP_FILE_SIZE_INFO *SizeInfo)
const FSP_FSCTL_FILE_INFO *FileInfo)
{
FSP_FSCTL_TRANSACT_RSP Response;
@@ -598,7 +596,6 @@ FSP_API NTSTATUS FspFileSystemSendOverwriteResponse(FSP_FILE_SYSTEM *FileSystem,
Response.Hint = Request->Hint;
Response.IoStatus.Status = STATUS_SUCCESS;
Response.IoStatus.Information = 0;
Response.Rsp.Overwrite.AllocationSize = SizeInfo->AllocationSize;
Response.Rsp.Overwrite.FileSize = SizeInfo->FileSize;
memcpy(&Response.Rsp.Overwrite.FileInfo, FileInfo, sizeof *FileInfo);
return FspFileSystemSendResponse(FileSystem, &Response);
}

12
src/sys/create.c
View File

@@ -546,8 +546,8 @@ VOID FspFsvolCreateComplete(
}
/* populate the FileNode/FileDesc fields from the Response */
FileNode->Header.AllocationSize.QuadPart = Response->Rsp.Create.Opened.AllocationSize;
FileNode->Header.FileSize.QuadPart = Response->Rsp.Create.Opened.FileSize;
FileNode->Header.AllocationSize.QuadPart = Response->Rsp.Create.Opened.FileInfo.AllocationSize;
FileNode->Header.FileSize.QuadPart = Response->Rsp.Create.Opened.FileInfo.FileSize;
FileNode->UserContext = Response->Rsp.Create.Opened.UserContext;
FileDesc->UserContext2 = Response->Rsp.Create.Opened.UserContext2;
@@ -592,7 +592,7 @@ VOID FspFsvolCreateComplete(
* If the user wants to delete on close, we must check at this
* point though.
*/
if (!FlagOn(Response->Rsp.Create.Opened.FileAttributes, FILE_ATTRIBUTE_DIRECTORY) &&
if (!FlagOn(Response->Rsp.Create.Opened.FileInfo.FileAttributes, FILE_ATTRIBUTE_DIRECTORY) &&
(FlagOn(Response->Rsp.Create.Opened.GrantedAccess, FILE_WRITE_DATA) ||
DeleteOnClose))
{
@@ -616,7 +616,7 @@ VOID FspFsvolCreateComplete(
/* save the old Request FileAttributes and make them compatible with the open file */
UINT32 FileAttributes = Request->Req.Create.FileAttributes;
if (FlagOn(Response->Rsp.Create.Opened.FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
if (FlagOn(Response->Rsp.Create.Opened.FileInfo.FileAttributes, FILE_ATTRIBUTE_DIRECTORY))
SetFlag(FileAttributes, FILE_ATTRIBUTE_DIRECTORY);
else
ClearFlag(FileAttributes, FILE_ATTRIBUTE_DIRECTORY);
@@ -677,8 +677,8 @@ VOID FspFsvolCreateComplete(
}
/* file was successfully overwritten/superseded */
FileNode->Header.AllocationSize.QuadPart = Response->Rsp.Overwrite.AllocationSize;
FileNode->Header.FileSize.QuadPart = Response->Rsp.Overwrite.FileSize;
FileNode->Header.AllocationSize.QuadPart = Response->Rsp.Overwrite.FileInfo.AllocationSize;
FileNode->Header.FileSize.QuadPart = Response->Rsp.Overwrite.FileInfo.FileSize;
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)&FileNode->Header.AllocationSize);
FspFileNodeRelease(FileNode, Both);

2
src/sys/driver.h
View File

@@ -582,7 +582,7 @@ VOID FspFileNodeAcquireExclusive(FSP_FILE_NODE *FileNode, ULONG Flags);
BOOLEAN FspFileNodeTryAcquireExclusive(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeRelease(FSP_FILE_NODE *FileNode, ULONG Flags);
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
DWORD GrantedAccess, DWORD ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult);
UINT32 GrantedAccess, UINT32 ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult);
VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
PBOOLEAN PDeletePending);
NTSTATUS FspFileDescCreate(FSP_FILE_DESC **PFileDesc);

4
src/sys/file.c
View File

@@ -21,7 +21,7 @@ VOID FspFileNodeAcquireExclusive(FSP_FILE_NODE *FileNode, ULONG Flags);
BOOLEAN FspFileNodeTryAcquireExclusive(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeRelease(FSP_FILE_NODE *FileNode, ULONG Flags);
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
DWORD GrantedAccess, DWORD ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult);
UINT32 GrantedAccess, UINT32 ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult);
VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
PBOOLEAN PDeletePending);
@@ -188,7 +188,7 @@ VOID FspFileNodeRelease(FSP_FILE_NODE *FileNode, ULONG Flags)
}
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
DWORD GrantedAccess, DWORD ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult)
UINT32 GrantedAccess, UINT32 ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult)
{
/*
* Attempt to insert our FileNode into the volume device's generic table.