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sys: FspFsextProvider

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This commit is contained in:
Bill Zissimopoulos
2019-06-14 21:22:01 -07:00
parent 6b83748d89
commit 2cd1bddafb
2 changed files with 36 additions and 1 deletions
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32
src/sys/fsext.c
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@@ -22,7 +22,37 @@
#include <sys/driver.h>
#include <winfsp/fsext.h>
static KSPIN_LOCK FsextSpinLock = 0;
FSP_FSEXT_PROVIDER *FsextProvider;
FSP_FSEXT_PROVIDER *FspFsextProvider(VOID)
{
FSP_FSEXT_PROVIDER *Provider;
KIRQL Irql;
KeAcquireSpinLock(&FsextSpinLock, &Irql);
Provider = FsextProvider;
KeReleaseSpinLock(&FsextSpinLock, Irql);
return Provider;
}
NTSTATUS FspFsextProviderRegister(FSP_FSEXT_PROVIDER *Provider)
{
return STATUS_TOO_LATE;
NTSTATUS Result;
KIRQL Irql;
KeAcquireSpinLock(&FsextSpinLock, &Irql);
if (0 != FsextProvider)
{
Result = STATUS_TOO_LATE;
goto exit;
}
Provider->DeviceExtensionOffset = FIELD_OFFSET(FSP_FSVOL_DEVICE_EXTENSION, FsextData);
FsextProvider = Provider;
Result = STATUS_SUCCESS;
exit:
KeReleaseSpinLock(&FsextSpinLock, Irql);
return Result;
}