X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FModules%2FIPStack%2Flink.c;h=ee7ad12af1dac16b432eea37219b2504aa0b016c;hb=db1f5acae9a3124bcf05cf57e233cac57ccf751d;hp=c4f716f0b38c5874c780ccf99176a01db3fe3d12;hpb=d0b4559f2936f6d9f06be0f7c3c51527a480ec0d;p=tpg%2Facess2.git

diff --git a/KernelLand/Modules/IPStack/link.c b/KernelLand/Modules/IPStack/link.c
index c4f716f0..ee7ad12a 100644
--- a/KernelLand/Modules/IPStack/link.c
+++ b/KernelLand/Modules/IPStack/link.c
@@ -82,23 +82,27 @@ void Link_RegisterType(Uint16 Type, tPacketCallback Callback)
 void Link_SendPacket(tAdapter *Adapter, Uint16 Type, tMacAddr To, tIPStackBuffer *Buffer)
 {
 	 int	length = IPStack_Buffer_GetLength(Buffer);
-	 int	ofs = 4 - (length & 3);
+	 int	ofs = (4 - (length & 3)) & 3;
 	Uint8	buf[sizeof(tEthernetHeader) + ofs + 4];
+	Uint32	*checksum = (void*)(buf + sizeof(tEthernetHeader) + ofs);
 	tEthernetHeader	*hdr = (void*)buf;
 
-	if( ofs == 4 )	ofs = 0;	
-
 	Log_Log("Net Link", "Sending %i bytes to %02x:%02x:%02x:%02x:%02x:%02x (Type 0x%x)",
 		length, To.B[0], To.B[1], To.B[2], To.B[3], To.B[4], To.B[5], Type);
 
 	hdr->Dest = To;
 	memcpy(&hdr->Src, Adapter->HWAddr, 6);	// TODO: Remove hard coded 6
 	hdr->Type = htons(Type);
-	*(Uint32*)(buf + sizeof(tEthernetHeader) + ofs) = 0;
+	memset(hdr+1, 0, ofs+4);	// zero padding and checksum
 
-	IPStack_Buffer_AppendSubBuffer(Buffer, sizeof(tEthernetHeader), ofs + 4, hdr, NULL, NULL);
-	
-	*(Uint32*)(buf + sizeof(tEthernetHeader) + ofs) = htonl( Link_CalculateCRC(Buffer) );
+	if( (Adapter->Type->Flags & ADAPTERFLAG_OFFLOAD_MAC) )
+		IPStack_Buffer_AppendSubBuffer(Buffer, sizeof(tEthernetHeader), ofs, hdr, NULL, NULL);
+	else
+	{
+		IPStack_Buffer_AppendSubBuffer(Buffer, sizeof(tEthernetHeader), ofs + 4, hdr, NULL, NULL);
+		*checksum = htonl( Link_CalculateCRC(Buffer) );
+		Log_Debug("Net Link", "Non-Offloaded: 0x%x, 0x%x", *checksum, ntohl(*checksum));
+	}
 
 	Log_Log("Net Link", " from %02x:%02x:%02x:%02x:%02x:%02x",
 		hdr->Src.B[0], hdr->Src.B[1], hdr->Src.B[2],