X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Modules%2FIPStack%2Fipv4.c;h=89f5671355087ee3d5b8676826c5844777b39479;hb=88ad2daf974ce4c4c770307546a9b4968c6183c2;hp=3a1a893b9e3d1e6f9e1281c97c9d8e667ab2311a;hpb=6bc21db109c4d8d3219ad58fc5cc76ec76e6c6b7;p=tpg%2Facess2.git diff --git a/Modules/IPStack/ipv4.c b/Modules/IPStack/ipv4.c index 3a1a893b..89f56713 100644 --- a/Modules/IPStack/ipv4.c +++ b/Modules/IPStack/ipv4.c @@ -12,7 +12,6 @@ extern tInterface *gIP_Interfaces; extern void ICMP_Initialise(); extern int ICMP_Ping(tInterface *Interface, tIPv4 Addr); -extern void UDP_Initialise(); extern tMacAddr ARP_Resolve4(tInterface *Interface, tIPv4 Address); // === PROTOTYPES === @@ -34,7 +33,6 @@ tIPCallback gaIPv4_Callbacks[256]; int IPv4_Initialise() { ICMP_Initialise(); - UDP_Initialise(); Link_RegisterType(IPV4_ETHERNET_ID, IPv4_int_GetPacket); return 1; } @@ -53,6 +51,12 @@ int IPv4_RegisterCallback(int ID, tIPCallback Callback) /** * \brief Creates and sends an IPv4 Packet + * \param Iface Interface + * \param Address Destination IP + * \param Protocol Protocol ID + * \param ID Some random ID number + * \param Length Data Length + * \param Data Packet Data */ int IPv4_SendPacket(tInterface *Iface, tIPv4 Address, int Protocol, int ID, int Length, void *Data) { @@ -65,6 +69,13 @@ int IPv4_SendPacket(tInterface *Iface, tIPv4 Address, int Protocol, int ID, int hdr->Version = 4; hdr->HeaderLength = sizeof(tIPv4Header)/4; hdr->DiffServices = 0; // TODO: Check + + hdr->Reserved = 0; + hdr->DontFragment = 0; + hdr->MoreFragments = 0; + hdr->FragOffLow = 0; + hdr->FragOffHi = 0; + hdr->TotalLength = htons( bufSize ); hdr->Identifcation = htons( ID ); // TODO: Check hdr->TTL = DEFAULT_TTL; @@ -72,7 +83,7 @@ int IPv4_SendPacket(tInterface *Iface, tIPv4 Address, int Protocol, int ID, int hdr->HeaderChecksum = 0; // Will be set later hdr->Source = Iface->IP4.Address; hdr->Destination = Address; - hdr->HeaderChecksum = htons( IPv4_Checksum(hdr, sizeof(tIPv4Header)) ); + hdr->HeaderChecksum = IPv4_Checksum(hdr, sizeof(tIPv4Header)); Log("[IPv4 ] Sending packet to %i.%i.%i.%i", Address.B[0], Address.B[1], Address.B[2], Address.B[3]); @@ -135,7 +146,10 @@ void IPv4_int_GetPacket(tAdapter *Adapter, tMacAddr From, int Length, void *Buff data = &hdr->Options[0]; // Send it on - gaIPv4_Callbacks[hdr->Protocol] (iface, &hdr->Source, dataLength, data); + if( gaIPv4_Callbacks[hdr->Protocol] ) + gaIPv4_Callbacks[hdr->Protocol] (iface, &hdr->Source, dataLength, data); + else + Log("[IPv4 ] Unknown Protocol %i", hdr->Protocol); } /** @@ -210,7 +224,7 @@ Uint16 IPv4_Checksum(void *Buf, int Size) sum ++; // Simulate 1's complement sum += arr[i]; } - return htons( ~sum ); + return ~sum ; } /**