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92 lines
3.2 KiB
Nix
92 lines
3.2 KiB
Nix
# Test of IPv6 functionality in NixOS, including whether router
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# solicication/advertisement using radvd works.
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import ./make-test-python.nix ({ pkgs, lib, ...} : {
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name = "ipv6";
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meta = with pkgs.stdenv.lib.maintainers; {
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maintainers = [ eelco ];
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};
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nodes =
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# Remove the interface configuration provided by makeTest so that the
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# interfaces are all configured implicitly
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{ client = { ... }: { networking.interfaces = lib.mkForce {}; };
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server =
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{ ... }:
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{ services.httpd.enable = true;
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services.httpd.adminAddr = "foo@example.org";
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networking.firewall.allowedTCPPorts = [ 80 ];
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};
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router =
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{ ... }:
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{ services.radvd.enable = true;
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services.radvd.config =
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''
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interface eth1 {
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AdvSendAdvert on;
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# ULA prefix (RFC 4193).
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prefix fd60:cc69:b537:1::/64 { };
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};
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'';
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};
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};
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testScript =
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''
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import re
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# Start the router first so that it respond to router solicitations.
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router.wait_for_unit("radvd")
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start_all()
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client.wait_for_unit("network.target")
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server.wait_for_unit("network.target")
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server.wait_for_unit("httpd.service")
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# Wait until the given interface has a non-tentative address of
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# the desired scope (i.e. has completed Duplicate Address
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# Detection).
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def wait_for_address(machine, iface, scope, temporary=False):
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temporary_flag = "temporary" if temporary else "-temporary"
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cmd = f"ip -o -6 addr show dev {iface} scope {scope} -tentative {temporary_flag}"
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machine.wait_until_succeeds(f"[ `{cmd} | wc -l` -eq 1 ]")
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output = machine.succeed(cmd)
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ip = re.search(r"inet6 ([0-9a-f:]{2,})/", output).group(1)
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if temporary:
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scope = scope + " temporary"
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machine.log(f"{scope} address on {iface} is {ip}")
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return ip
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with subtest("Loopback address can be pinged"):
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client.succeed("ping -c 1 ::1 >&2")
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client.fail("ping -c 1 ::2 >&2")
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with subtest("Local link addresses can be obtained and pinged"):
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client_ip = wait_for_address(client, "eth1", "link")
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server_ip = wait_for_address(server, "eth1", "link")
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client.succeed(f"ping -c 1 {client_ip}%eth1 >&2")
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client.succeed(f"ping -c 1 {server_ip}%eth1 >&2")
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with subtest("Global addresses can be obtained, pinged, and reached via http"):
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client_ip = wait_for_address(client, "eth1", "global")
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server_ip = wait_for_address(server, "eth1", "global")
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client.succeed(f"ping -c 1 {client_ip} >&2")
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client.succeed(f"ping -c 1 {server_ip} >&2")
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client.succeed(f"curl --fail -g http://[{server_ip}]")
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client.fail(f"curl --fail -g http://[{client_ip}]")
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with subtest("Privacy extensions: Global temporary address can be obtained and pinged"):
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ip = wait_for_address(client, "eth1", "global", temporary=True)
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# Default route should have "src <temporary address>" in it
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client.succeed(f"ip r g ::2 | grep {ip}")
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# TODO: test reachability of a machine on another network.
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'';
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})
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