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 ===
int IPv4_Initialise()
{
ICMP_Initialise();
- UDP_Initialise();
Link_RegisterType(IPV4_ETHERNET_ID, IPv4_int_GetPacket);
return 1;
}
/**
* \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)
{
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;
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]);
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);
}
/**
sum ++; // Simulate 1's complement
sum += arr[i];
}
- return htons( ~sum );
+ return ~sum ;
}
/**