public static Route RequestRoute(nl_sock *socket, Subnet destinationSubnet)
{
nl_cache *cache;
var family = AddressFamily.Convert(destinationSubnet.NetworkAddress.AddressFamily);
LibNLRoute3.rtnl_route_alloc_cache(socket,
family, 0, &cache);
//Check that the number of items is not 0
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
nl_addr *destinationNetwork;
fixed(byte *bytes = destinationSubnet.NetworkAddress.GetAddressBytes())
{
destinationNetwork = LibNL3.nl_addr_build(family, bytes, AddressFamily.Size(family));
}
nl_object *current = LibNL3.nl_cache_get_first(cache);
for (int i = 0; i < count; i++)
{
nl_addr *dAddr = LibNLRoute3.rtnl_route_get_dst((rtnl_route *)current);
if (LibNL3.nl_addr_get_prefixlen(dAddr) == destinationSubnet.NetmaskLength &&
LibNL3.nl_addr_cmp_prefix(dAddr, destinationNetwork) == 0)
{
return(new Route(current));
}
current = LibNL3.nl_cache_get_next(current);
}
return(null);
}