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sys: FspFileNodeInvalidateFileInfo: use after setting/deleting reparse point

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This commit is contained in:
Bill Zissimopoulos
2017-01-01 12:53:58 -08:00
parent 23d2083d8f
commit eecca688bc
3 changed files with 19 additions and 0 deletions
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1
src/sys/driver.h
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@@ -1307,6 +1307,7 @@ VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose); const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose);
BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject, BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo, ULONG InfoChangeNumber); const FSP_FSCTL_FILE_INFO *FileInfo, ULONG InfoChangeNumber);
VOID FspFileNodeInvalidateFileInfo(FSP_FILE_NODE *FileNode);
static inline static inline
ULONG FspFileNodeFileInfoChangeNumber(FSP_FILE_NODE *FileNode) ULONG FspFileNodeFileInfoChangeNumber(FSP_FILE_NODE *FileNode)
{ {

12
src/sys/file.c
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@@ -58,6 +58,7 @@ VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose); const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose);
BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject, BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo, ULONG InfoChangeNumber); const FSP_FSCTL_FILE_INFO *FileInfo, ULONG InfoChangeNumber);
VOID FspFileNodeInvalidateFileInfo(FSP_FILE_NODE *FileNode);
BOOLEAN FspFileNodeReferenceSecurity(FSP_FILE_NODE *FileNode, PCVOID *PBuffer, PULONG PSize); BOOLEAN FspFileNodeReferenceSecurity(FSP_FILE_NODE *FileNode, PCVOID *PBuffer, PULONG PSize);
VOID FspFileNodeSetSecurity(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULONG Size); VOID FspFileNodeSetSecurity(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULONG Size);
BOOLEAN FspFileNodeTrySetSecurity(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULONG Size, BOOLEAN FspFileNodeTrySetSecurity(FSP_FILE_NODE *FileNode, PCVOID Buffer, ULONG Size,
@@ -124,6 +125,7 @@ VOID FspFileNodeOplockComplete(PVOID Context, PIRP Irp);
#pragma alloc_text(PAGE, FspFileNodeTryGetFileInfo) #pragma alloc_text(PAGE, FspFileNodeTryGetFileInfo)
#pragma alloc_text(PAGE, FspFileNodeSetFileInfo) #pragma alloc_text(PAGE, FspFileNodeSetFileInfo)
#pragma alloc_text(PAGE, FspFileNodeTrySetFileInfo) #pragma alloc_text(PAGE, FspFileNodeTrySetFileInfo)
#pragma alloc_text(PAGE, FspFileNodeInvalidateFileInfo)
#pragma alloc_text(PAGE, FspFileNodeReferenceSecurity) #pragma alloc_text(PAGE, FspFileNodeReferenceSecurity)
#pragma alloc_text(PAGE, FspFileNodeSetSecurity) #pragma alloc_text(PAGE, FspFileNodeSetSecurity)
#pragma alloc_text(PAGE, FspFileNodeTrySetSecurity) #pragma alloc_text(PAGE, FspFileNodeTrySetSecurity)
@@ -1582,6 +1584,16 @@ BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileOb
return TRUE; return TRUE;
} }
VOID FspFileNodeInvalidateFileInfo(FSP_FILE_NODE *FileNode)
{
PAGED_CODE();
FileNode->FileInfoExpirationTime = FileNode->BasicInfoExpirationTime = 0;
if (0 != FileNode->MainFileNode)
FileNode->MainFileNode->BasicInfoExpirationTime = 0;
}
BOOLEAN FspFileNodeReferenceSecurity(FSP_FILE_NODE *FileNode, PCVOID *PBuffer, PULONG PSize) BOOLEAN FspFileNodeReferenceSecurity(FSP_FILE_NODE *FileNode, PCVOID *PBuffer, PULONG PSize)
{ {
PAGED_CODE(); PAGED_CODE();

6
src/sys/fsctl.c
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@@ -300,8 +300,14 @@ static NTSTATUS FspFsvolFileSystemControlReparsePointComplete(
if (IsWrite) if (IsWrite)
{ {
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp); PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
PFILE_OBJECT FileObject = IrpSp->FileObject;
FSP_FILE_NODE *FileNode = FileObject->FsContext;
FSP_FILE_DESC *FileDesc = IrpSp->FileObject->FsContext2; FSP_FILE_DESC *FileDesc = IrpSp->FileObject->FsContext2;
ASSERT(FileNode == FileDesc->FileNode);
FspFileNodeInvalidateFileInfo(FileNode);
FileDesc->DidSetReparsePoint = TRUE; FileDesc->DidSetReparsePoint = TRUE;
FileDesc->DidSetMetadata = TRUE; FileDesc->DidSetMetadata = TRUE;