public static Neighbour[] GetArpCache(nl_sock *socket)
{
nl_cache *cache;
LibNLRoute3.rtnl_neigh_alloc_cache(socket, &cache);
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
Neighbour[] neighbours = new Neighbour[count];
nl_object *current = LibNL3.nl_cache_get_first(cache);
for (int i = 0; i < count; i++)
{
neighbours[i] = new Neighbour(current);
current = LibNL3.nl_cache_get_next(current);
}
return(neighbours);
}
public static NetworkInterface[] RequestAllNetworkInterfaces(nl_sock *socket)
{
nl_cache *cache;
int x;
if ((x = LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache)) < 0)
{
throw new NetlinkSocketException(x);
}
//Check that the number of items is not 0
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
NetworkInterface[] interfaces = new NetworkInterface[count];
nl_object *current = LibNL3.nl_cache_get_first(cache);
for (int i = 0; i < count; i++)
{
interfaces[i] = new NetworkInterface(current);
current = LibNL3.nl_cache_get_next(current);
}
return(interfaces);
}
public unsafe Neighbour(rtnl_neigh *neighbour)
{
nl_addr *l2Addr = LibNLRoute3.rtnl_neigh_get_lladdr(neighbour);
byte * mac = (byte *)LibNL3.nl_addr_get_binary_addr(l2Addr);
byte[] macBytes = new byte[6];
for (int i = 0; i < 6; i++)
{
macBytes[i] = mac[i];
}
Layer2Address = new PhysicalAddress(macBytes);
nl_addr *l3Addr = LibNLRoute3.rtnl_neigh_get_dst(neighbour);
uint addressLength = LibNL3.nl_addr_get_len(l3Addr);
byte[] bytes = new byte[addressLength];
for (uint i = 0; i < addressLength; i++)
{
bytes[i] = ((byte *)LibNL3.nl_addr_get_binary_addr(l3Addr))[i];
}
Layer3Address = new IPAddress(bytes);
VlanId = (ushort)LibNLRoute3.rtnl_neigh_get_vlan(neighbour);
Family = LibNLRoute3.rtnl_neigh_get_family(neighbour);
}
public static int SetNetworkInterfaceState(nl_sock *socket, int index, bool up)
{
nl_cache *cache;
int x;
if ((x = LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache)) < 0)
{
throw new NetlinkSocketException(x);
}
rtnl_link *original = LibNLRoute3.rtnl_link_get(cache, index);
rtnl_link *changed = (rtnl_link *)LibNL3.nl_object_clone((nl_object *)original);
if (up)
{
LibNLRoute3.rtnl_link_set_flags(changed, NLInterfaceFlags.UP);
}
else
{
LibNLRoute3.rtnl_link_unset_flags(changed, NLInterfaceFlags.UP);
}
int r = LibNLRoute3.rtnl_link_change(socket, original, changed, NLMessageFlag.REQUEST);
return(r == -10 ? 0 : r);
}
public static NetworkInterface RequestInterface(nl_sock *socket, String name)
{
nl_cache *cache;
int x;
if ((x = LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache)) < 0)
{
throw new NetlinkSocketException(x);
}
//Check that the number of items is not 0
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
byte[] nameBytes = Util.StringToNativeBytes(name);
int index;
fixed(byte *n = nameBytes)
{
index = LibNLRoute3.rtnl_link_name2i(cache, n);
}
NetworkInterface networkInterface = new NetworkInterface(LibNLRoute3.rtnl_link_get(cache, index));
return(networkInterface);
}
public static IpAddress[] RequestAllAddresses(nl_sock *socket)
{
nl_cache *cache;
LibNLRoute3.rtnl_addr_alloc_cache(socket, &cache);
//Check that the number of items is not 0
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
IpAddress[] addresses = new IpAddress[count];
nl_object *current = LibNL3.nl_cache_get_first(cache);
for (int i = 0; i < count; i++)
{
addresses[i] = new IpAddress(current);
current = LibNL3.nl_cache_get_next(current);
}
return(addresses.ToArray());
}
public static Route[] RequestAllRoutes(nl_sock *socket, bool ipv6)
{
nl_cache *cache;
LibNLRoute3.rtnl_route_alloc_cache(socket, ipv6 ? AddressFamily.INET6 : AddressFamily.INET, 0, &cache);
//Check that the number of items is not 0
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
Route[] routes = new Route[count];
nl_object *current = LibNL3.nl_cache_get_first(cache);
for (int i = 0; i < count; i++)
{
routes[i] = new Route(current);
current = LibNL3.nl_cache_get_next(current);
}
return(routes);
}
public static int SetInterfaceVlanId(nl_sock *socket, int nicIndex, ushort vlanId)
{
nl_cache *cache;
int x;
if ((x = LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache)) < 0)
{
throw new NetlinkSocketException(x);
}
rtnl_link *original = LibNLRoute3.rtnl_link_get(cache, nicIndex);
rtnl_link *changed = (rtnl_link *)LibNL3.nl_object_clone((nl_object *)original);
LibNLRoute3.rtnl_link_vlan_set_id(changed, vlanId);
int r = LibNLRoute3.rtnl_link_change(socket, original, changed, NLMessageFlag.REQUEST);
return(r == -10 ? 0 : r);
}
public static int SetNetworkInterfaceMaximumTransmissionUnit(nl_sock *socket, int networkInterfaceIndex,
uint mtu)
{
nl_cache *cache;
int x;
if ((x = LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache)) < 0)
{
throw new NetlinkSocketException(x);
}
rtnl_link *original = LibNLRoute3.rtnl_link_get(cache, networkInterfaceIndex);
rtnl_link *changed = (rtnl_link *)LibNL3.nl_object_clone((nl_object *)original);
LibNLRoute3.rtnl_link_set_mtu(changed, mtu);
int r = LibNLRoute3.rtnl_link_change(socket, original, changed, NLMessageFlag.REQUEST);
return(r == -10 ? 0 : r);
}
public static int AddIpAddress(nl_sock *socket, IpAddress ipAddress)
{
rtnl_addr *addr = LibNLRoute3.rtnl_addr_alloc();
LibNLRoute3.rtnl_addr_set_ifindex(addr, ipAddress.Nic);
LibNLRoute3.rtnl_addr_set_scope(addr, 0);
nl_addr *nlAddr;
byte[] addressBytes = ipAddress.Address.GetAddressBytes();
fixed(byte *a = addressBytes)
{
nlAddr = LibNL3.nl_addr_build(ipAddress.Family, a, ipAddress.Size());
}
LibNL3.nl_addr_set_prefixlen(nlAddr, ipAddress.Netmask);
LibNLRoute3.rtnl_addr_set_local(addr, nlAddr);
return(LibNLRoute3.rtnl_addr_add(socket, addr, NLMessageFlag.REQUEST | NLMessageFlag.ATOMIC));
}
public static int SetNetworkInterfaceName(nl_sock *socket, int networkInterfaceIndex, string name)
{
nl_cache *cache;
int x;
if ((x = LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache)) < 0)
{
throw new NetlinkSocketException(x);
}
rtnl_link *original = LibNLRoute3.rtnl_link_get(cache, networkInterfaceIndex);
rtnl_link *changed = (rtnl_link *)LibNL3.nl_object_clone((nl_object *)original);
var bytes = Util.StringToNativeBytes(name);
fixed(byte *n = bytes)
LibNLRoute3.rtnl_link_set_name(changed, (char *)n);
int r = LibNLRoute3.rtnl_link_change(socket, original, changed, NLMessageFlag.REQUEST);
return(r == -10 ? 0 : r);
}
public static int AddRoute(nl_sock *socket, Route route)
{
rtnl_route *nlRoute = LibNLRoute3.rtnl_route_alloc();
LibNLRoute3.rtnl_route_set_family(nlRoute,
(byte)(route.Family == AddressFamily.INET
? System.Net.Sockets.AddressFamily.InterNetwork
: System.Net.Sockets.AddressFamily.InterNetworkV6));
LibNLRoute3.rtnl_route_set_table(nlRoute, (uint)RoutingTable.MAIN);
nl_addr *nlDestination;
byte[] destinationBytes = route.Destination.NetworkAddress.GetAddressBytes();
fixed(byte *d = destinationBytes)
nlDestination = LibNL3.nl_addr_build(route.Family, d, (uint)destinationBytes.Length);
LibNL3.nl_addr_set_prefixlen(nlDestination, (int)route.Destination.NetmaskLength);
LibNLRoute3.rtnl_route_set_dst(nlRoute, nlDestination);
nl_addr *nlGateway;
byte[] gatewayBytes = route.Gateway.GetAddressBytes();
fixed(byte *g = gatewayBytes)
nlGateway = LibNL3.nl_addr_build(route.Family, g, (uint)gatewayBytes.Length);
LibNL3.nl_addr_set_prefixlen(nlGateway, route.Family == AddressFamily.INET ? 32 : 128);
rtnl_nexthop *rtnlNextHop = LibNLRoute3.rtnl_route_nh_alloc();
LibNLRoute3.rtnl_route_nh_set_gateway(rtnlNextHop, nlGateway);
LibNLRoute3.rtnl_route_nh_set_ifindex(rtnlNextHop, route.Nic);
LibNLRoute3.rtnl_route_add_nexthop(nlRoute, rtnlNextHop);
LibNLRoute3.rtnl_route_set_protocol(nlRoute, (byte)route.Protocol);
return(LibNLRoute3.rtnl_route_add(socket, nlRoute, NLMessageFlag.REQUEST | NLMessageFlag.ATOMIC));
}
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);
}
public static InterfaceStatistics GetInterfaceStatistics(nl_sock *socket, int interfaceIndex)
{
nl_cache *cache;
LibNLRoute3.rtnl_link_alloc_cache(socket, AddressFamily.INET, &cache);
//Check that the number of items is not 0
int count = LibNL3.nl_cache_nitems(cache);
if (count == 0)
{
return(null);
}
rtnl_link *link = LibNLRoute3.rtnl_link_get(cache, interfaceIndex);
rtnl_link_stat_id_t[] values = (rtnl_link_stat_id_t[])Enum.GetValues(typeof(rtnl_link_stat_id_t));
ulong[] statistics = new ulong[values.Length - 1];
for (int i = 0; i < values.Length - 1; i++)
{
statistics[i] = LibNLRoute3.rtnl_link_get_stat(link, values[i]);
}
return(new InterfaceStatistics(statistics));
}
public NetlinkSocket()
{
_sockFd = LibNL3.nl_socket_alloc();
LibNL3.nl_connect(_sockFd, 0);
}
public unsafe NetworkInterface(rtnl_link *link)
{
Index = LibNLRoute3.rtnl_link_get_ifindex(link);
ParentInterfaceIndex = LibNLRoute3.rtnl_link_get_link(link);
InterfaceName = Util.NativeToManagedString((sbyte *)LibNLRoute3.rtnl_link_get_name(link));
sbyte *typeStringNative = (sbyte *)LibNLRoute3.rtnl_link_get_type(link);
string type = Util.NativeToManagedString(typeStringNative);
switch (type)
{
case "":
InterfaceType = InterfaceType.PHYSICAL;
break;
case "vlan":
InterfaceType = InterfaceType.VLAN;
break;
case "bridge":
InterfaceType = InterfaceType.BRIDGE;
break;
case "veth":
InterfaceType = InterfaceType.VETH;
break;
default: throw new NotSupportedException("Interface type " + type + " not supported");
}
nl_addr *hwAddr = LibNLRoute3.rtnl_link_get_addr(link);
if (hwAddr != null)
{
byte * mac = (byte *)LibNL3.nl_addr_get_binary_addr(hwAddr);
byte[] macBytes = new byte[6];
for (int i = 0; i < 6; i++)
{
macBytes[i] = mac[i];
}
HardwareAddress = new PhysicalAddress(macBytes);
}
var linkFlags = LibNLRoute3.rtnl_link_get_flags(link);
IsUp = (linkFlags & NLInterfaceFlags.UP) != 0;
IsLowerLayerUp = (linkFlags & NLInterfaceFlags.LOWER_UP) != 0;
IsBroadcastInterface = (linkFlags & NLInterfaceFlags.BROADCAST) != 0;
IsLoopbackInterface = (linkFlags & NLInterfaceFlags.LOOPBACK) != 0;
IsPointToPointInterface = (linkFlags & NLInterfaceFlags.POINTOPOINT) != 0;
IsNbmaInterface = !(IsBroadcastInterface || IsLoopbackInterface || IsPointToPointInterface);
IsPromiscuousInterface = (linkFlags & NLInterfaceFlags.PROMISC) != 0;
if (InterfaceType == InterfaceType.PHYSICAL && IsLoopbackInterface)
{
InterfaceType = InterfaceType.LOOPBACK;
}
if (InterfaceType == InterfaceType.VLAN)
{
var info = new Vlan((ushort)LibNLRoute3.rtnl_link_vlan_get_id(link));
InterfaceInformation = info;
}
MaximumTransmissionUnit = LibNLRoute3.rtnl_link_get_mtu(link);
}
