Hesham/wintun
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driver: allow ring registration from kernel

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2021-10-17 13:21:38 +02:00
parent 4c9511554d
commit c7b20de96c
1 changed files with 4 additions and 4 deletions
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8
driver/wintun.c
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@ -634,7 +634,7 @@ TunRegisterBuffers(_Inout_ TUN_CTX *Ctx, _Inout_ IRP *Irp)
/* We will not wait on send ring tail moved event. */
EVENT_MODIFY_STATE,
*ExEventObjectType,
UserMode,
Irp->RequestorMode,
&Ctx->Device.Send.TailMoved,
NULL)))
goto cleanupResetOwner;
@ -645,7 +645,7 @@ TunRegisterBuffers(_Inout_ TUN_CTX *Ctx, _Inout_ IRP *Irp)
try
{
Status = STATUS_INVALID_USER_BUFFER;
MmProbeAndLockPages(Ctx->Device.Send.Mdl, UserMode, IoWriteAccess);
MmProbeAndLockPages(Ctx->Device.Send.Mdl, Irp->RequestorMode, IoWriteAccess);
}
except(EXCEPTION_EXECUTE_HANDLER) { goto cleanupSendMdl; }
@ -670,7 +670,7 @@ TunRegisterBuffers(_Inout_ TUN_CTX *Ctx, _Inout_ IRP *Irp)
/* We need to clear receive ring TailMoved event on transition to non-alertable state. */
SYNCHRONIZE | EVENT_MODIFY_STATE,
*ExEventObjectType,
UserMode,
Irp->RequestorMode,
&Ctx->Device.Receive.TailMoved,
NULL)))
goto cleanupSendUnlockPages;
@ -681,7 +681,7 @@ TunRegisterBuffers(_Inout_ TUN_CTX *Ctx, _Inout_ IRP *Irp)
try
{
Status = STATUS_INVALID_USER_BUFFER;
MmProbeAndLockPages(Ctx->Device.Receive.Mdl, UserMode, IoWriteAccess);
MmProbeAndLockPages(Ctx->Device.Receive.Mdl, Irp->RequestorMode, IoWriteAccess);
}
except(EXCEPTION_EXECUTE_HANDLER) { goto cleanupReceiveMdl; }