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sys: FspMountdevMake: use non-repeatable (i.e. non UUIDv5) GUID when non-persistent mountdev

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This commit is contained in:
Bill Zissimopoulos 2019-09-06 14:34:33 -07:00
parent 4655926d03
commit 430d7a5650
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GPG Key ID: 3D4F95D52C7B3EA3
1 changed files with 15 additions and 9 deletions
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8
src/sys/mountdev.c
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@ -158,7 +158,9 @@ NTSTATUS FspMountdevMake(
FsvrtDeviceExtension->Persistent = Persistent; FsvrtDeviceExtension->Persistent = Persistent;
/* make UUID v5 from the fsvrt device GUID and a unique string derived from the VolumeParams */ if (Persistent)
{
/* make UUID v5 from the fsvrt device GUID and a unique string derived from VolumeParams */
RtlInitEmptyUnicodeString(&String, StringBuf, sizeof StringBuf); RtlInitEmptyUnicodeString(&String, StringBuf, sizeof StringBuf);
Result = RtlUnicodeStringPrintf(&String, Result = RtlUnicodeStringPrintf(&String,
L"%s:%08lx:%08lx", L"%s:%08lx:%08lx",
@ -167,6 +169,10 @@ NTSTATUS FspMountdevMake(
FsvolDeviceExtension->VolumeParams.VolumeCreationTime); FsvolDeviceExtension->VolumeParams.VolumeCreationTime);
ASSERT(NT_SUCCESS(Result)); ASSERT(NT_SUCCESS(Result));
Result = FspUuid5Make(&FspFsvrtDeviceClassGuid, String.Buffer, String.Length, &Guid); Result = FspUuid5Make(&FspFsvrtDeviceClassGuid, String.Buffer, String.Length, &Guid);
}
else
/* create volume guid */
Result = FspCreateGuid(&Guid);
if (!NT_SUCCESS(Result)) if (!NT_SUCCESS(Result))
goto exit; goto exit;