165 lines
5.2 KiB
Nix
165 lines
5.2 KiB
Nix
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# This test runs a Bittorrent tracker on one machine, and verifies
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# that two client machines can download the torrent using
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# `transmission'. The first client (behind a NAT router) downloads
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# from the initial seeder running on the tracker. Then we kill the
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# initial seeder. The second client downloads from the first client,
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# which only works if the first client successfully uses the UPnP-IGD
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# protocol to poke a hole in the NAT.
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import ./make-test-python.nix ({ pkgs, ... }:
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let
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# Some random file to serve.
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file = pkgs.hello.src;
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internalRouterAddress = "192.168.3.1";
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internalClient1Address = "192.168.3.2";
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externalRouterAddress = "80.100.100.1";
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externalClient2Address = "80.100.100.2";
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externalTrackerAddress = "80.100.100.3";
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transmissionConfig = { ... }: {
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environment.systemPackages = [ pkgs.transmission ];
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services.transmission = {
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enable = true;
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settings = {
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dht-enabled = false;
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message-level = 3;
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};
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};
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};
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in
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{
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name = "bittorrent";
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meta = with pkgs.stdenv.lib.maintainers; {
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maintainers = [ domenkozar eelco rob bobvanderlinden ];
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};
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nodes = {
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tracker = { pkgs, ... }: {
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imports = [ transmissionConfig ];
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virtualisation.vlans = [ 1 ];
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networking.firewall.enable = false;
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networking.interfaces.eth1.ipv4.addresses = [
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{ address = externalTrackerAddress; prefixLength = 24; }
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];
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# We need Apache on the tracker to serve the torrents.
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services.httpd = {
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enable = true;
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virtualHosts = {
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"torrentserver.org" = {
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adminAddr = "foo@example.org";
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documentRoot = "/tmp";
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};
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};
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};
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services.opentracker.enable = true;
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};
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router = { pkgs, nodes, ... }: {
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virtualisation.vlans = [ 1 2 ];
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networking.nat.enable = true;
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networking.nat.internalInterfaces = [ "eth2" ];
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networking.nat.externalInterface = "eth1";
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networking.firewall.enable = true;
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networking.firewall.trustedInterfaces = [ "eth2" ];
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networking.interfaces.eth0.ipv4.addresses = [];
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networking.interfaces.eth1.ipv4.addresses = [
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{ address = externalRouterAddress; prefixLength = 24; }
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];
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networking.interfaces.eth2.ipv4.addresses = [
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{ address = internalRouterAddress; prefixLength = 24; }
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];
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services.miniupnpd = {
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enable = true;
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externalInterface = "eth1";
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internalIPs = [ "eth2" ];
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appendConfig = ''
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ext_ip=${externalRouterAddress}
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'';
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};
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};
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client1 = { pkgs, nodes, ... }: {
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imports = [ transmissionConfig ];
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environment.systemPackages = [ pkgs.miniupnpc ];
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virtualisation.vlans = [ 2 ];
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networking.interfaces.eth0.ipv4.addresses = [];
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networking.interfaces.eth1.ipv4.addresses = [
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{ address = internalClient1Address; prefixLength = 24; }
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];
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networking.defaultGateway = internalRouterAddress;
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networking.firewall.enable = false;
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};
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client2 = { pkgs, ... }: {
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imports = [ transmissionConfig ];
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virtualisation.vlans = [ 1 ];
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networking.interfaces.eth0.ipv4.addresses = [];
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networking.interfaces.eth1.ipv4.addresses = [
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{ address = externalClient2Address; prefixLength = 24; }
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];
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networking.firewall.enable = false;
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};
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};
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testScript = { nodes, ... }: ''
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start_all()
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# Wait for network and miniupnpd.
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router.wait_for_unit("network-online.target")
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router.wait_for_unit("miniupnpd")
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# Create the torrent.
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tracker.succeed("mkdir /tmp/data")
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tracker.succeed(
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"cp ${file} /tmp/data/test.tar.bz2"
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)
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tracker.succeed(
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"transmission-create /tmp/data/test.tar.bz2 --private --tracker http://${externalTrackerAddress}:6969/announce --outfile /tmp/test.torrent"
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)
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tracker.succeed("chmod 644 /tmp/test.torrent")
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# Start the tracker. !!! use a less crappy tracker
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tracker.wait_for_unit("network-online.target")
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tracker.wait_for_unit("opentracker.service")
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tracker.wait_for_open_port(6969)
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# Start the initial seeder.
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tracker.succeed(
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"transmission-remote --add /tmp/test.torrent --no-portmap --no-dht --download-dir /tmp/data"
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)
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# Now we should be able to download from the client behind the NAT.
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tracker.wait_for_unit("httpd")
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client1.wait_for_unit("network-online.target")
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client1.succeed(
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"transmission-remote --add http://${externalTrackerAddress}/test.torrent --download-dir /tmp >&2 &"
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)
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client1.wait_for_file("/tmp/test.tar.bz2")
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client1.succeed(
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"cmp /tmp/test.tar.bz2 ${file}"
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)
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# Bring down the initial seeder.
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# tracker.stop_job("transmission")
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# Now download from the second client. This can only succeed if
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# the first client created a NAT hole in the router.
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client2.wait_for_unit("network-online.target")
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client2.succeed(
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"transmission-remote --add http://${externalTrackerAddress}/test.torrent --no-portmap --no-dht --download-dir /tmp >&2 &"
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)
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client2.wait_for_file("/tmp/test.tar.bz2")
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client2.succeed(
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"cmp /tmp/test.tar.bz2 ${file}"
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)
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'';
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})
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