aboutsummaryrefslogtreecommitdiffstats
path: root/driver
diff options
context:
space:
mode:
Diffstat (limited to 'driver')
-rw-r--r--driver/wintun.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/driver/wintun.c b/driver/wintun.c
index 3e615bb..7cb72bb 100644
--- a/driver/wintun.c
+++ b/driver/wintun.c
@@ -517,13 +517,15 @@ TunProcessReceiveData(_Inout_ TUN_CTX *Ctx)
break;
RingHead = TUN_RING_WRAP(RingHead + AlignedPacketSize, RingCapacity);
- MDL *Mdl = IoAllocateMdl(NULL, PacketSize, FALSE, FALSE, NULL);
+ VOID *PacketAddr =
+ (UCHAR *)MmGetMdlVirtualAddress(Ctx->Device.Receive.Mdl) + (ULONG)(Packet->Data - (UCHAR *)Ring);
+ MDL *Mdl = IoAllocateMdl(PacketAddr, PacketSize, FALSE, FALSE, NULL);
if (!Mdl)
goto skipNbl;
IoBuildPartialMdl(
Ctx->Device.Receive.Mdl,
Mdl,
- (UCHAR *)MmGetMdlVirtualAddress(Ctx->Device.Receive.Mdl) + (ULONG)(Packet->Data - (UCHAR *)Ring),
+ PacketAddr,
PacketSize);
NET_BUFFER_LIST *Nbl = NdisAllocateNetBufferAndNetBufferList(Ctx->NblPool, 0, 0, Mdl, 0, PacketSize);
if (!Nbl)