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3fd324f823
Eelco has made several early contributions to NixOS including writing the samba module among other things, but is more or less inactive these days. By my brief inspection, he has not committed to the nixos/ tree since releasing Nix 2.13 in early 2023 and merging a PR to networking tests slightly before that. A lot of these tests/modules are actually unmaintained in practice, so we should update the code to reflect the practical reality so someone can consider picking them up.
169 lines
5.5 KiB
Nix
169 lines
5.5 KiB
Nix
# 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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download-dir = "/var/lib/transmission/Downloads";
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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 = 2;
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inherit download-dir;
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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.lib.maintainers; {
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maintainers = [ domenkozar 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.systemctl("start network-online.target")
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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 ${download-dir}/data")
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tracker.succeed(
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"cp ${file} ${download-dir}/data/test.tar.bz2"
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)
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tracker.succeed(
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"transmission-create ${download-dir}/data/test.tar.bz2 --private --tracker http://${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.systemctl("start network-online.target")
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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 ${download-dir}/data"
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)
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# Now we should be able to download from the client behind the NAT.
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tracker.wait_for_unit("httpd")
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client1.systemctl("start network-online.target")
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client1.wait_for_unit("network-online.target")
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client1.succeed("transmission-remote --add http://${externalTrackerAddress}/test.torrent >&2 &")
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client1.wait_for_file("${download-dir}/test.tar.bz2")
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client1.succeed(
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"cmp ${download-dir}/test.tar.bz2 ${file}"
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)
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# Bring down the initial seeder.
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tracker.stop_job("transmission")
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# Now download from the second client. This can only succeed if
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# the first client created a NAT hole in the router.
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client2.systemctl("start network-online.target")
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client2.wait_for_unit("network-online.target")
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client2.succeed(
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"transmission-remote --add http://${externalTrackerAddress}/test.torrent --no-portmap --no-dht >&2 &"
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)
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client2.wait_for_file("${download-dir}/test.tar.bz2")
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client2.succeed(
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"cmp ${download-dir}/test.tar.bz2 ${file}"
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)
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'';
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})
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