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sys,dll: reparse point implementation: WIP

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This commit is contained in:
Bill Zissimopoulos
2016-08-15 04:53:11 -07:00
parent 7337f3c6cd
commit f7e0362350
7 changed files with 514 additions and 37 deletions
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21
src/dll/fsop.c
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@ -910,7 +910,6 @@ FSP_API NTSTATUS FspFileSystemOpFileSystemControl(FSP_FILE_SYSTEM *FileSystem,
{
Size = FSP_FSCTL_TRANSACT_RSP_SIZEMAX - FIELD_OFFSET(FSP_FSCTL_TRANSACT_RSP, Buffer) -
sizeof(*SymlinkReparseData);
Size /= 2; /* need space for SubstituteName and PrintName */
Result = FileSystem->Interface->GetReparsePoint(FileSystem, Request,
(PVOID)Request->Req.FileSystemControl.UserContext,
(PWSTR)Request->Buffer,
@ -921,8 +920,8 @@ FSP_API NTSTATUS FspFileSystemOpFileSystemControl(FSP_FILE_SYSTEM *FileSystem,
Offset = 0;
if (Size > 4 * sizeof(WCHAR) &&
'\\' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[0] &&
'?' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[1] &&
'?' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[2] &&
'?' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[1] &&
'?' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[2] &&
'\\' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[3])
Offset = 4 * sizeof(WCHAR);
@ -930,23 +929,17 @@ FSP_API NTSTATUS FspFileSystemOpFileSystemControl(FSP_FILE_SYSTEM *FileSystem,
SymlinkReparseData->ReparseDataLength = (USHORT)(
FIELD_OFFSET(REPARSE_DATA_BUFFER, SymbolicLinkReparseBuffer.PathBuffer) -
FIELD_OFFSET(REPARSE_DATA_BUFFER, SymbolicLinkReparseBuffer) +
Size + Size - Offset);
Size);
SymlinkReparseData->SymbolicLinkReparseBuffer.SubstituteNameOffset =
0;
SymlinkReparseData->SymbolicLinkReparseBuffer.SubstituteNameLength =
(USHORT)Size;
SymlinkReparseData->SymbolicLinkReparseBuffer.PrintNameOffset =
(USHORT)Size;
(USHORT)Offset;
SymlinkReparseData->SymbolicLinkReparseBuffer.PrintNameLength =
(USHORT)(Size - Offset);
SymlinkReparseData->SymbolicLinkReparseBuffer.Flags =
Size > 1 * sizeof(WCHAR) &&
'\\' == SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer[0] ?
0 : SYMLINK_FLAG_RELATIVE;
RtlMoveMemory(
SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer + Size / sizeof(WCHAR),
SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer + Offset / sizeof(WCHAR),
(DWORD)(Size - Offset));
SymlinkReparseData->SymbolicLinkReparseBuffer.Flags = 0 == Offset ?
0 : SYMLINK_FLAG_RELATIVE;
Response->Rsp.FileSystemControl.Buffer.Size = (UINT16)Size;
}
@ -974,7 +967,7 @@ FSP_API NTSTATUS FspFileSystemOpFileSystemControl(FSP_FILE_SYSTEM *FileSystem,
(PVOID)Request->Req.FileSystemControl.UserContext,
(PWSTR)Request->Buffer,
SymlinkReparseData->SymbolicLinkReparseBuffer.PathBuffer +
SymlinkReparseData->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR),
SymlinkReparseData->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
SymlinkReparseData->SymbolicLinkReparseBuffer.SubstituteNameLength);
}
else