nixpkgs/tests/nat.nix
Eelco Dolstra 1a82024dd8 In the tests, don't start agetty on /dev/ttyS0
Running agetty on ttyS0 interferes with the backdoor, which uses ttyS0
as its standard error.  After agetty starts, writes to the stderr file
descriptor will return EIO (though doing "exec 2>/proc/self/fd/2" will
miracuously fix this).

http://hydra.nixos.org/build/3252782
2012-10-29 21:10:00 +01:00

78 lines
2.4 KiB
Nix

# This is a simple distributed test involving a topology with two
# separate virtual networks - the "inside" and the "outside" - with a
# client on the inside network, a server on the outside network, and a
# router connected to both that performs Network Address Translation
# for the client.
{ pkgs, ... }:
{
nodes =
{ client =
{ config, pkgs, nodes, ... }:
{ virtualisation.vlans = [ 1 ];
networking.defaultGateway =
nodes.router.config.networking.ifaces.eth2.ipAddress;
};
router =
{ config, pkgs, ... }:
{ virtualisation.vlans = [ 2 1 ];
networking.nat.enable = true;
networking.nat.internalIPs = "192.168.1.0/24";
networking.nat.externalInterface = "eth1";
};
server =
{ config, pkgs, ... }:
{ virtualisation.vlans = [ 2 ];
services.httpd.enable = true;
services.httpd.adminAddr = "foo@example.org";
services.vsftpd.enable = true;
services.vsftpd.anonymousUser = true;
};
};
testScript =
{ nodes, ... }:
''
startAll;
# The router should have access to the server.
$server->waitForUnit("network.target");
$server->waitForUnit("httpd");
$router->waitForUnit("network.target");
$router->succeed("curl --fail http://server/ >&2");
# The client should be also able to connect via the NAT router.
$router->waitForUnit("nat");
$client->waitForUnit("network.target");
$client->succeed("curl --fail http://server/ >&2");
$client->succeed("ping -c 1 server >&2");
# Test whether passive FTP works.
$server->waitForUnit("vsftpd");
$server->succeed("echo Hello World > /home/ftp/foo.txt");
$client->succeed("curl -v ftp://server/foo.txt >&2");
# Test whether active FTP works.
$client->succeed("curl -v -P - ftp://server/foo.txt >&2");
# Test ICMP.
$client->succeed("ping -c 1 router >&2");
$router->succeed("ping -c 1 client >&2");
# If we turn off NAT, the client shouldn't be able to reach the server.
$router->stopJob("nat");
$client->fail("curl --fail --connect-timeout 5 http://server/ >&2");
$client->fail("ping -c 1 server >&2");
# And make sure that restarting the NAT job works.
$router->succeed("systemctl start nat");
$client->succeed("curl --fail http://server/ >&2");
$client->succeed("ping -c 1 server >&2");
'';
}