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nixos/tests/nat: Add tests for standalone and firewall based nat

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This commit is contained in:
William A. Kennington III 2014-09-18 13:34:29 -07:00
parent b047f2ddec
commit 8250059a9f
3 changed files with 71 additions and 66 deletions
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3
nixos/release-combined.nix
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@ -61,7 +61,8 @@ in rec {
(all nixos.tests.kde4) (all nixos.tests.kde4)
(all nixos.tests.login) (all nixos.tests.login)
(all nixos.tests.misc) (all nixos.tests.misc)
(all nixos.tests.nat) (all nixos.tests.nat.firewall)
(all nixos.tests.nat.standalone)
(all nixos.tests.nfs3) (all nixos.tests.nfs3)
(all nixos.tests.openssh) (all nixos.tests.openssh)
(all nixos.tests.printing) (all nixos.tests.printing)

3
nixos/release.nix
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@ -244,7 +244,8 @@ in rec {
tests.munin = callTest tests/munin.nix {}; tests.munin = callTest tests/munin.nix {};
tests.mysql = callTest tests/mysql.nix {}; tests.mysql = callTest tests/mysql.nix {};
tests.mysqlReplication = callTest tests/mysql-replication.nix {}; tests.mysqlReplication = callTest tests/mysql-replication.nix {};
tests.nat = callTest tests/nat.nix {}; tests.nat.firewall = callTest tests/nat.nix { withFirewall = true; };
tests.nat.standalone = callTest tests/nat.nix { withFirewall = false; };
tests.nfs3 = callTest tests/nfs.nix { version = 3; }; tests.nfs3 = callTest tests/nfs.nix { version = 3; };
tests.nsd = callTest tests/nsd.nix {}; tests.nsd = callTest tests/nsd.nix {};
tests.openssh = callTest tests/openssh.nix {}; tests.openssh = callTest tests/openssh.nix {};

131
nixos/tests/nat.nix
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@ -3,78 +3,81 @@
# client on the inside network, a server on the outside network, and a # client on the inside network, a server on the outside network, and a
# router connected to both that performs Network Address Translation # router connected to both that performs Network Address Translation
# for the client. # for the client.
import ./make-test.nix ({ withFirewall, ... }:
let
unit = if withFirewall then "firewall" else "nat";
in
{
name = "nat${if withFirewall then "WithFirewall" else "Standalone"}";
import ./make-test.nix { nodes =
name = "nat"; { client =
{ config, pkgs, nodes, ... }:
{ virtualisation.vlans = [ 1 ];
networking.firewall.allowPing = true;
networking.defaultGateway =
(pkgs.lib.head nodes.router.config.networking.interfaces.eth2.ip4).address;
};
nodes = router =
{ client = { config, pkgs, ... }:
{ config, pkgs, nodes, ... }: { virtualisation.vlans = [ 2 1 ];
{ virtualisation.vlans = [ 1 ]; networking.firewall.enable = withFirewall;
networking.firewall.allowPing = true; networking.firewall.allowPing = true;
networking.defaultGateway = networking.nat.enable = true;
(pkgs.lib.head nodes.router.config.networking.interfaces.eth2.ip4).address; networking.nat.internalIPs = [ "192.168.1.0/24" ];
}; networking.nat.externalInterface = "eth1";
};
router = server =
{ config, pkgs, ... }: { config, pkgs, ... }:
{ virtualisation.vlans = [ 2 1 ]; { virtualisation.vlans = [ 2 ];
networking.firewall.allowPing = true; networking.firewall.enable = false;
networking.nat.enable = true; services.httpd.enable = true;
networking.nat.internalIPs = [ "192.168.1.0/24" ]; services.httpd.adminAddr = "foo@example.org";
networking.nat.externalInterface = "eth1"; services.vsftpd.enable = true;
}; services.vsftpd.anonymousUser = true;
};
};
server = testScript =
{ config, pkgs, ... }: { nodes, ... }:
{ virtualisation.vlans = [ 2 ]; ''
networking.firewall.enable = false; startAll;
services.httpd.enable = true;
services.httpd.adminAddr = "foo@example.org";
services.vsftpd.enable = true;
services.vsftpd.anonymousUser = true;
};
};
testScript = # The router should have access to the server.
{ nodes, ... }: $server->waitForUnit("network.target");
'' $server->waitForUnit("httpd");
startAll; $router->waitForUnit("network.target");
$router->succeed("curl --fail http://server/ >&2");
# The router should have access to the server. # The client should be also able to connect via the NAT router.
$server->waitForUnit("network.target"); $router->waitForUnit("${unit}");
$server->waitForUnit("httpd"); $client->waitForUnit("network.target");
$router->waitForUnit("network.target"); $client->succeed("curl --fail http://server/ >&2");
$router->succeed("curl --fail http://server/ >&2"); $client->succeed("ping -c 1 server >&2");
# The client should be also able to connect via the NAT router. # Test whether passive FTP works.
$router->waitForUnit("firewall"); # Nat leverages the firewall service $server->waitForUnit("vsftpd");
$client->waitForUnit("network.target"); $server->succeed("echo Hello World > /home/ftp/foo.txt");
$client->succeed("curl --fail http://server/ >&2"); $client->succeed("curl -v ftp://server/foo.txt >&2");
$client->succeed("ping -c 1 server >&2");
# Test whether passive FTP works. # Test whether active FTP works.
$server->waitForUnit("vsftpd"); $client->succeed("curl -v -P - ftp://server/foo.txt >&2");
$server->succeed("echo Hello World > /home/ftp/foo.txt");
$client->succeed("curl -v ftp://server/foo.txt >&2");
# Test whether active FTP works. # Test ICMP.
$client->succeed("curl -v -P - ftp://server/foo.txt >&2"); $client->succeed("ping -c 1 router >&2");
$router->succeed("ping -c 1 client >&2");
# Test ICMP. # If we turn off NAT, the client shouldn't be able to reach the server.
$client->succeed("ping -c 1 router >&2"); $router->succeed("iptables -t nat -D PREROUTING -j nixos-nat-pre");
$router->succeed("ping -c 1 client >&2"); $router->succeed("iptables -t nat -D POSTROUTING -j nixos-nat-post");
$client->fail("curl --fail --connect-timeout 5 http://server/ >&2");
$client->fail("ping -c 1 server >&2");
# If we turn off NAT, the client shouldn't be able to reach the server. # And make sure that reloading the NAT job works.
$router->succeed("iptables -t nat -D PREROUTING -j nixos-nat-pre"); $router->succeed("systemctl restart ${unit}");
$router->succeed("iptables -t nat -D POSTROUTING -j nixos-nat-post"); $client->succeed("curl --fail http://server/ >&2");
$client->fail("curl --fail --connect-timeout 5 http://server/ >&2"); $client->succeed("ping -c 1 server >&2");
$client->fail("ping -c 1 server >&2"); '';
})
# And make sure that restarting the NAT job works.
$router->succeed("systemctl reload firewall"); # Nat leverages the firewall service
$client->succeed("curl --fail http://server/ >&2");
$client->succeed("ping -c 1 server >&2");
'';
}