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import ../make-test-python.nix ({ pkgs, ... }: {
name = "dnscrypt-wrapper";
meta = with pkgs.lib.maintainers; {
maintainers = [ rnhmjoj ];
};
nodes = {
server = { lib, ... }:
{ services.dnscrypt-wrapper = with builtins;
{ enable = true;
address = "192.168.1.1";
keys.expiration = 5; # days
keys.checkInterval = 2; # min
# The keypair was generated by the command:
# dnscrypt-wrapper --gen-provider-keypair \
# --provider-name=2.dnscrypt-cert.server \
# --ext-address=192.168.1.1:5353
providerKey.public = toFile "public.key" (readFile ./public.key);
providerKey.secret = toFile "secret.key" (readFile ./secret.key);
};
services.tinydns.enable = true;
services.tinydns.data = ''
..:192.168.1.1:a
+it.works:1.2.3.4
'';
networking.firewall.allowedUDPPorts = [ 5353 ];
networking.firewall.allowedTCPPorts = [ 5353 ];
networking.interfaces.eth1.ipv4.addresses = lib.mkForce
[ { address = "192.168.1.1"; prefixLength = 24; } ];
};
client = { lib, ... }:
{ services.dnscrypt-proxy2.enable = true;
services.dnscrypt-proxy2.upstreamDefaults = false;
services.dnscrypt-proxy2.settings = {
server_names = [ "server" ];
static.server.stamp = "sdns://AQAAAAAAAAAAEDE5Mi4xNjguMS4xOjUzNTMgFEHYOv0SCKSuqR5CDYa7-58cCBuXO2_5uTSVU9wNQF0WMi5kbnNjcnlwdC1jZXJ0LnNlcnZlcg";
};
networking.nameservers = [ "127.0.0.1" ];
networking.interfaces.eth1.ipv4.addresses = lib.mkForce
[ { address = "192.168.1.2"; prefixLength = 24; } ];
};
};
testScript = ''
start_all()
with subtest("The server can generate the ephemeral keypair"):
server.wait_for_unit("dnscrypt-wrapper")
server.wait_for_file("/var/lib/dnscrypt-wrapper/2.dnscrypt-cert.server.key")
server.wait_for_file("/var/lib/dnscrypt-wrapper/2.dnscrypt-cert.server.crt")
with subtest("The client can connect to the server"):
server.wait_for_unit("tinydns")
client.wait_for_unit("dnscrypt-proxy2")
assert "1.2.3.4" in client.succeed(
"host it.works"
), "The IP address of 'it.works' does not match 1.2.3.4"
with subtest("The server rotates the ephemeral keys"):
# advance time by a little less than 5 days
server.succeed("date -s \"$(date --date '4 days 6 hours')\"")
client.succeed("date -s \"$(date --date '4 days 6 hours')\"")
server.wait_for_file("/var/lib/dnscrypt-wrapper/oldkeys")
with subtest("The client can still connect to the server"):
server.wait_for_unit("dnscrypt-wrapper")
client.succeed("host it.works")
'';
})
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