if( MAC_EQU(to, cMAC_ZERO) ) {
// No route to host
+ Log_Notice("IPv4", "No route to host %i.%i.%i.%i",
+ Address.B[0], Address.B[1], Address.B[2], Address.B[3]);
return 0;
}
4, (tIPv4*)Iface->Address, &Address,
Protocol, 0,
Length, Data);
- if(ret != 0) {
+ if(ret > 0) {
// Just drop it (with an error)
+ Log_Notice("IPv4", "Firewall dropped packet");
return 0;
}
Uint8 *data;
int dataLength;
int ret;
-
+
if(Length < sizeof(tIPv4Header)) return;
#if 0
case 1:
Log_Debug("IPv4", "Silently dropping packet");
return ;
+ case -1:
+ // Bad rule
+ break ;
// Unknown, silent drop
default:
+ Log_Warning("IPv4", "Unknown firewall rule");
return ;
}
const Uint16 *arr = Buf;
int i;
- Size = (Size + 1) >> 1; // 16-bit word count
- for(i = 0; i < Size; i++ )
+ // Sum all whole words
+ for(i = 0; i < Size/2; i++ )
{
Uint16 val = ntohs(arr[i]);
sum += val;
}
+ // Add the tail word
+// if( i*2 != Size )
+// sum += arr[i]&0xFF;
// Apply one's complement
while (sum >> 16)