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sys: FspFsvolQueryStreamInformationCopy: add stream type ($DATA) to stream names

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This commit is contained in:
Bill Zissimopoulos
2016-09-28 16:17:10 -07:00
parent 19a73ca01d
commit cc408b71e1
1 changed files with 24 additions and 2 deletions
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26
src/sys/fileinfo.c
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@@ -363,6 +363,9 @@ static NTSTATUS FspFsvolQueryStreamInformationCopy(
FSP_FSCTL_STREAM_INFO *StreamInfo, ULONG StreamInfoSize,
PVOID DestBuf, PULONG PDestLen)
{
#define STREAM_TYPE ":$DATA"
#define STREAM_TYPE_LENGTH (sizeof L"" STREAM_TYPE - sizeof "")
#define STREAM_EXTRA_LENGTH (sizeof L":" STREAM_TYPE - sizeof "")
#define FILL_INFO()\
do\
{\
@@ -373,7 +376,23 @@ static NTSTATUS FspFsvolQueryStreamInformationCopy(
Info->StreamAllocationSize.QuadPart = StreamInfo->StreamAllocationSize;\
Info = DestBuf;\
RtlCopyMemory(Info, &InfoStruct, FIELD_OFFSET(FILE_STREAM_INFORMATION, StreamName));\
RtlCopyMemory(Info->StreamName, StreamInfo->StreamNameBuf, CopyLength);\
{\
PWSTR StreamName = Info->StreamName;\
ULONG Length[3];\
Length[0] = 0 < CopyLength ? sizeof(WCHAR) : 0;\
Length[1] = Info->StreamNameLength - STREAM_EXTRA_LENGTH < CopyLength - Length[0] ?\
Info->StreamNameLength - STREAM_EXTRA_LENGTH : CopyLength - Length[0];\
Length[2] = CopyLength - Length[0] - Length[1];\
ASSERT(\
sizeof(WCHAR) >= Length[0] &&\
Info->StreamNameLength - STREAM_EXTRA_LENGTH >= Length[1] &&\
STREAM_TYPE_LENGTH >= Length[2]);\
RtlCopyMemory(StreamName, L":", Length[0]);\
StreamName += Length[0] / sizeof(WCHAR);\
RtlCopyMemory(StreamName, StreamInfo->StreamNameBuf, Length[1]);\
StreamName += Length[1] / sizeof(WCHAR);\
RtlCopyMemory(StreamName, L"" STREAM_TYPE, Length[2]);\
}\
} while (0,0)
PAGED_CODE();
@@ -397,7 +416,7 @@ static NTSTATUS FspFsvolQueryStreamInformationCopy(
if (sizeof(FSP_FSCTL_STREAM_INFO) > StreamInfoSize)
break;
StreamNameLength = StreamInfoSize - sizeof(FSP_FSCTL_STREAM_INFO);
StreamNameLength = StreamInfoSize - sizeof(FSP_FSCTL_STREAM_INFO) + STREAM_EXTRA_LENGTH;
/* CopyLength is the same as StreamNameLength except on STATUS_BUFFER_OVERFLOW */
CopyLength = StreamNameLength;
@@ -442,6 +461,9 @@ static NTSTATUS FspFsvolQueryStreamInformationCopy(
return Result;
#undef FILL_INFO
#undef STREAM_EXTRA_LENGTH
#undef STREAM_TYPE_LENGTH
#undef STREAM_TYPE
}
static NTSTATUS FspFsvolQueryStreamInformation(