diff options
Diffstat (limited to 'driver/wintun.c')
| -rw-r--r-- | driver/wintun.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/driver/wintun.c b/driver/wintun.c index 72178d4..a762dcb 100644 --- a/driver/wintun.c +++ b/driver/wintun.c @@ -507,11 +507,20 @@ TunProcessReceiveData(_Inout_ TUN_CTX *Ctx) break; RingHead = TUN_RING_WRAP(RingHead + AlignedPacketSize, RingCapacity); - - NET_BUFFER_LIST *Nbl = NdisAllocateNetBufferAndNetBufferList( - Ctx->NblPool, 0, 0, Ctx->Device.Receive.Mdl, (ULONG)(Packet->Data - (UCHAR *)Ring), PacketSize); + MDL *Mdl; + NET_BUFFER_LIST *Nbl = NdisAllocateNetBufferAndNetBufferList(Ctx->NblPool, sizeof(*Mdl), 0, NULL, 0, 0); if (!Nbl) goto skipNbl; + Mdl = (MDL *)NET_BUFFER_LIST_CONTEXT_DATA_START(Nbl); + IoBuildPartialMdl( + Ctx->Device.Receive.Mdl, + Mdl, + (UCHAR *)MmGetMdlVirtualAddress(Ctx->Device.Receive.Mdl) + (ULONG)(Packet->Data - (UCHAR *)Ring), + PacketSize); + NET_BUFFER *Nb = NET_BUFFER_LIST_FIRST_NB(Nbl); + NET_BUFFER_FIRST_MDL(Nb) = NET_BUFFER_CURRENT_MDL(Nb) = Mdl; + NET_BUFFER_DATA_LENGTH(Nb) = PacketSize; + NET_BUFFER_DATA_OFFSET(Nb) = NET_BUFFER_CURRENT_MDL_OFFSET(Nb) = 0; Nbl->SourceHandle = Ctx->MiniportAdapterHandle; NdisSetNblFlag(Nbl, NblFlags); NET_BUFFER_LIST_INFO(Nbl, NetBufferListFrameType) = (PVOID)NblProto; |