mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-23 06:01:15 +00:00
fb46df8a9a
Follow-up to the following commits: abdc5961c3cdf9f5893ea1e91ba08ff5089f53a4: Fix starting the firewall e090701e2d09aec3e8866ab9a8e53c37973ffeb4: Order before sysinit Solely use sysinit.target here instead of multi-user.target because we want to make sure that the iptables rules are applied *before* any socket units are started. The reason I've dropped the wantedBy on multi-user.target is that sysinit.target is already a part of the dependency chain of multi-user.target. To make sure that this holds true, I've added a small test case to ensure that during switch of the configuration the firewall.service is considered as well. Tested using the firewall NixOS test. Signed-off-by: aszlig <aszlig@redmoonstudios.org> Cc: @edolstra
66 lines
2.1 KiB
Nix
66 lines
2.1 KiB
Nix
# Test the firewall module.
|
|
|
|
import ./make-test.nix ( { pkgs, ... } : {
|
|
name = "firewall";
|
|
meta = with pkgs.stdenv.lib.maintainers; {
|
|
maintainers = [ eelco chaoflow ];
|
|
};
|
|
|
|
nodes =
|
|
{ walled =
|
|
{ config, pkgs, nodes, ... }:
|
|
{ networking.firewall.enable = true;
|
|
networking.firewall.logRefusedPackets = true;
|
|
services.httpd.enable = true;
|
|
services.httpd.adminAddr = "foo@example.org";
|
|
};
|
|
|
|
# Dummy configuration to check whether firewall.service will be honored
|
|
# during system activation. This only needs to be different to the
|
|
# original walled configuration so that there is a change in the service
|
|
# file.
|
|
walled2 =
|
|
{ config, pkgs, nodes, ... }:
|
|
{ networking.firewall.enable = true;
|
|
networking.firewall.rejectPackets = true;
|
|
};
|
|
|
|
attacker =
|
|
{ config, pkgs, ... }:
|
|
{ services.httpd.enable = true;
|
|
services.httpd.adminAddr = "foo@example.org";
|
|
networking.firewall.enable = false;
|
|
};
|
|
};
|
|
|
|
testScript = { nodes, ... }: let
|
|
newSystem = nodes.walled2.config.system.build.toplevel;
|
|
in ''
|
|
$walled->start;
|
|
$attacker->start;
|
|
|
|
$walled->waitForUnit("firewall");
|
|
$walled->waitForUnit("httpd");
|
|
$attacker->waitForUnit("network.target");
|
|
|
|
# Local connections should still work.
|
|
$walled->succeed("curl -v http://localhost/ >&2");
|
|
|
|
# Connections to the firewalled machine should fail, but ping should succeed.
|
|
$attacker->fail("curl --fail --connect-timeout 2 http://walled/ >&2");
|
|
$attacker->succeed("ping -c 1 walled >&2");
|
|
|
|
# Outgoing connections/pings should still work.
|
|
$walled->succeed("curl -v http://attacker/ >&2");
|
|
$walled->succeed("ping -c 1 attacker >&2");
|
|
|
|
# If we stop the firewall, then connections should succeed.
|
|
$walled->stopJob("firewall");
|
|
$attacker->succeed("curl -v http://walled/ >&2");
|
|
|
|
# Check whether activation of a new configuration reloads the firewall.
|
|
$walled->succeed("${newSystem}/bin/switch-to-configuration test 2>&1" .
|
|
" | grep -qF firewall.service");
|
|
'';
|
|
})
|