diff options
| -rw-r--r-- | driver/wintun.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/driver/wintun.c b/driver/wintun.c index 79952e4..2e740e2 100644 --- a/driver/wintun.c +++ b/driver/wintun.c @@ -509,6 +509,8 @@ TunProcessReceiveData(_Inout_ TUN_CTX *Ctx) if (AlignedPacketSize > RingContent) break; + RingHead = TUN_RING_WRAP(RingHead + AlignedPacketSize, RingCapacity); + ULONG NblFlags; USHORT NblProto; if (PacketSize >= 20 && Packet->Data[0] >> 4 == 4) @@ -522,9 +524,8 @@ TunProcessReceiveData(_Inout_ TUN_CTX *Ctx) NblProto = HTONS(NDIS_ETH_TYPE_IPV6); } else - break; + goto skipNbl; - RingHead = TUN_RING_WRAP(RingHead + AlignedPacketSize, RingCapacity); VOID *PacketAddr = (UCHAR *)MmGetMdlVirtualAddress(Ctx->Device.Receive.Mdl) + (ULONG)(Packet->Data - (UCHAR *)Ring); MDL *Mdl = IoAllocateMdl(PacketAddr, PacketSize, FALSE, FALSE, NULL); |