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sys: ea: testing

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This commit is contained in:
Bill Zissimopoulos 2019-03-16 00:04:00 -07:00
parent 67bd49d5d4
commit 91568edc45
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GPG Key ID: 3D4F95D52C7B3EA3
1 changed files with 62 additions and 39 deletions
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95
src/sys/ea.c
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@ -90,12 +90,12 @@ static VOID FspFsvolQueryEaGetCopy(
PFILE_FULL_EA_INFORMATION SrcBuf, SrcBufEnd = (PVOID)((PUINT8)SrcBufBgn + SrcSize);
PFILE_FULL_EA_INFORMATION DstBuf, DstBufEnd = (PVOID)((PUINT8)DstBufBgn + DstSize);
PFILE_FULL_EA_INFORMATION PrevDstBuf;
PVOID Src;
PFILE_FULL_EA_INFORMATION Src;
STRING GetName, Name;
ULONG CopyLength;
IoStatus->Status = STATUS_SUCCESS;
IoStatus->Information = 0;
DstBuf = DstBufBgn, PrevDstBuf = 0;
for (GetBuf = GetBufBgn; GetBufEnd > GetBuf; GetBuf = FSP_NEXT_EA(GetBuf, GetBufEnd))
{
@ -118,10 +118,10 @@ static VOID FspFsvolQueryEaGetCopy(
{
IoStatus->Status = STATUS_INVALID_EA_NAME;
IoStatus->Information = (ULONG)((PUINT8)GetBuf - (PUINT8)GetBufBgn);
break;
return;
}
Src = GetBuf;
Src = 0;
for (SrcBuf = SrcBufBgn; SrcBufEnd > SrcBuf; SrcBuf = FSP_NEXT_EA(SrcBuf, SrcBufEnd))
{
Name.Length = Name.MaximumLength = SrcBuf->EaNameLength;
@ -134,21 +134,29 @@ static VOID FspFsvolQueryEaGetCopy(
}
}
if (GetBuf != Src)
if (0 != Src)
CopyLength = FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) +
((PFILE_FULL_EA_INFORMATION)Src)->EaNameLength + 1 +
((PFILE_FULL_EA_INFORMATION)Src)->EaValueLength;
Src->EaNameLength + 1 + Src->EaValueLength;
else
CopyLength = FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) +
((PFILE_GET_EA_INFORMATION)Src)->EaNameLength + 1;
GetBuf->EaNameLength + 1;
if ((PUINT8)DstBuf + CopyLength > (PUINT8)DstBufEnd)
{
IoStatus->Status = STATUS_BUFFER_OVERFLOW;
break;
IoStatus->Information = 0;
return;
}
if (0 != Src)
RtlMoveMemory(DstBuf, Src, CopyLength);
else
{
DstBuf->Flags = 0;
DstBuf->EaNameLength = GetBuf->EaNameLength;
DstBuf->EaValueLength = 0;
RtlCopyMemory(DstBuf->EaName, GetBuf->EaName, GetBuf->EaNameLength + 1);
}
DstBuf->NextEntryOffset = 0;
if (!CasePreservedExtendedAttributes)
{
@ -159,16 +167,14 @@ static VOID FspFsvolQueryEaGetCopy(
if (0 != PrevDstBuf)
PrevDstBuf->NextEntryOffset = (ULONG)((PUINT8)DstBuf - (PUINT8)PrevDstBuf);
PrevDstBuf = DstBuf;
DstBuf = (PVOID)((PUINT8)DstBuf + CopyLength);
IoStatus->Information = (ULONG)((PUINT8)DstBuf - (PUINT8)DstBufBgn + CopyLength);
DstBuf = (PVOID)((PUINT8)DstBuf + FSP_FSCTL_ALIGN_UP(CopyLength, sizeof(ULONG)));
if (ReturnSingleEntry)
break;
DstBuf = (PVOID)FSP_FSCTL_ALIGN_UP((UINT_PTR)DstBuf, sizeof(ULONG));
}
IoStatus->Information = NT_SUCCESS(IoStatus->Status) ?
(ULONG)((PUINT8)DstBuf - (PUINT8)DstBufBgn) : 0;
IoStatus->Status = STATUS_SUCCESS;
}
static VOID FspFsvolQueryEaIndexCopy(
@ -196,25 +202,25 @@ static VOID FspFsvolQueryEaIndexCopy(
}
for (SrcBuf = SrcBufBgn; EaIndex < *PEaIndex && SrcBufEnd > SrcBuf;
SrcBuf = FSP_NEXT_EA(SrcBuf, SrcBufEnd), EaIndex++)
;
SrcBuf = FSP_NEXT_EA(SrcBuf, SrcBufEnd))
EaIndex++;
IoStatus->Status = STATUS_SUCCESS;
IoStatus->Information = 0;
DstBuf = DstBufBgn, PrevDstBuf = 0;
for (; SrcBufEnd > SrcBuf; SrcBuf = FSP_NEXT_EA(SrcBuf, SrcBufEnd), EaIndex++)
{
if ((PUINT8)DstBuf + FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) > (PUINT8)DstBufEnd)
break;
DstBuf = DstBufBgn, PrevDstBuf = 0;
for (; SrcBufEnd > SrcBuf; SrcBuf = FSP_NEXT_EA(SrcBuf, SrcBufEnd))
{
CopyLength = FIELD_OFFSET(FILE_FULL_EA_INFORMATION, EaName) +
((PFILE_FULL_EA_INFORMATION)SrcBuf)->EaNameLength + 1 +
((PFILE_FULL_EA_INFORMATION)SrcBuf)->EaValueLength;
if ((PUINT8)DstBuf + CopyLength > (PUINT8)DstBufEnd)
{
CopyLength = (ULONG)((PUINT8)DstBufEnd - (PUINT8)DstBuf);
IoStatus->Status = STATUS_BUFFER_OVERFLOW;
if (0 != PrevDstBuf)
break;
IoStatus->Status = STATUS_BUFFER_TOO_SMALL;
IoStatus->Information = 0;
return;
}
RtlMoveMemory(DstBuf, SrcBuf, CopyLength);
@ -228,29 +234,44 @@ static VOID FspFsvolQueryEaIndexCopy(
if (0 != PrevDstBuf)
PrevDstBuf->NextEntryOffset = (ULONG)((PUINT8)DstBuf - (PUINT8)PrevDstBuf);
PrevDstBuf = DstBuf;
DstBuf = (PVOID)((PUINT8)DstBuf + CopyLength);
IoStatus->Information = (ULONG)((PUINT8)DstBuf - (PUINT8)DstBufBgn + CopyLength);
DstBuf = (PVOID)((PUINT8)DstBuf + FSP_FSCTL_ALIGN_UP(CopyLength, sizeof(ULONG)));
if (!NT_SUCCESS(IoStatus->Status) || ReturnSingleEntry)
EaIndex++;
if (ReturnSingleEntry)
break;
DstBuf = (PVOID)FSP_FSCTL_ALIGN_UP((UINT_PTR)DstBuf, sizeof(ULONG));
}
if (IndexSpecified)
{
if (0 != PrevDstBuf)
{
*PEaIndex = EaIndex;
IoStatus->Information = (ULONG)((PUINT8)DstBuf - (PUINT8)DstBufBgn);
IoStatus->Status = SrcBufEnd > SrcBuf && !ReturnSingleEntry ?
STATUS_BUFFER_OVERFLOW : STATUS_SUCCESS;
}
else
{
if (SrcBufBgn == SrcBuf)
IoStatus->Status = IndexSpecified ?
STATUS_NONEXISTENT_EA_ENTRY : STATUS_NO_EAS_ON_FILE;
else if (SrcBufEnd > SrcBuf)
IoStatus->Status = STATUS_BUFFER_TOO_SMALL;
IoStatus->Status = *PEaIndex == EaIndex ?
STATUS_NO_MORE_EAS : STATUS_NONEXISTENT_EA_ENTRY;
IoStatus->Information = 0;
}
}
else
IoStatus->Status = IndexSpecified && *PEaIndex != EaIndex ?
STATUS_NONEXISTENT_EA_ENTRY : STATUS_NO_MORE_EAS;
{
if (0 != PrevDstBuf)
{
*PEaIndex = EaIndex;
IoStatus->Status = SrcBufEnd > SrcBuf && !ReturnSingleEntry ?
STATUS_BUFFER_OVERFLOW : STATUS_SUCCESS;
}
else
{
IoStatus->Status = SrcBufBgn == SrcBuf ?
STATUS_NO_EAS_ON_FILE : STATUS_NO_MORE_EAS;
IoStatus->Information = 0;
}
}
}
@ -447,6 +468,8 @@ NTSTATUS FspFsvolQueryEaComplete(
FspFileNodeRelease(FileNode, Main);
Result = Irp->IoStatus.Status;
FSP_LEAVE_IOC("FileObject=%p",
IrpSp->FileObject);
}