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|
# This test runs FRR and checks if OSPF routing works.
#
# Network topology:
# [ client ]--net1--[ router1 ]--net2--[ router2 ]--net3--[ server ]
#
# All interfaces are in OSPF Area 0.
{ pkgs, ... }:
let
ifAddr = node: iface: (pkgs.lib.head node.networking.interfaces.${iface}.ipv4.addresses).address;
ospfConf1 = ''
interface eth2
ip ospf hello-interval 1
ip ospf dead-interval 5
!
router ospf
network 192.168.0.0/16 area 0
'';
ospfConf2 = ''
interface eth2
ip ospf hello-interval 1
ip ospf dead-interval 5
!
router ospf
network 192.168.0.0/16 area 0
'';
in
{
name = "frr";
meta = {
maintainers = [ ];
};
nodes = {
client =
{ nodes, ... }:
{
virtualisation.vlans = [ 1 ];
services.frr = {
config = ''
ip route 192.168.0.0/16 ${ifAddr nodes.router1 "eth1"}
'';
};
};
router1 =
{ ... }:
{
virtualisation.vlans = [
1
2
];
boot.kernel.sysctl."net.ipv4.ip_forward" = "1";
networking.firewall.extraCommands = "iptables -A nixos-fw -i eth2 -p ospfigp -j ACCEPT";
services.frr = {
ospfd.enable = true;
config = ospfConf1;
};
specialisation.ospf.configuration = {
services.frr.config = ospfConf2;
};
};
router2 =
{ ... }:
{
virtualisation.vlans = [
3
2
];
boot.kernel.sysctl."net.ipv4.ip_forward" = "1";
networking.firewall.extraCommands = "iptables -A nixos-fw -i eth2 -p ospfigp -j ACCEPT";
services.frr = {
ospfd.enable = true;
config = ospfConf2;
};
};
server =
{ nodes, ... }:
{
virtualisation.vlans = [ 3 ];
services.frr = {
config = ''
ip route 192.168.0.0/16 ${ifAddr nodes.router2 "eth1"}
'';
};
};
};
testScript =
{ nodes, ... }:
''
start_all()
# Wait for the networking to start on all machines
for machine in client, router1, router2, server:
machine.wait_for_unit("network.target")
with subtest("Wait for FRR"):
for gw in client, router1, router2, server:
gw.wait_for_unit("frr")
router1.succeed("${nodes.router1.system.build.toplevel}/specialisation/ospf/bin/switch-to-configuration test >&2")
with subtest("Wait for OSPF to form adjacencies"):
for gw in router1, router2:
gw.wait_until_succeeds("vtysh -c 'show ip ospf neighbor' | grep Full")
gw.wait_until_succeeds("vtysh -c 'show ip route' | grep '^O>'")
with subtest("Test ICMP"):
client.wait_until_succeeds("ping -4 -c 3 server >&2")
'';
}
|
