nixos/croc: init
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2ec9a72b80
commit
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@ -632,6 +632,7 @@
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./services/networking/coredns.nix
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./services/networking/corerad.nix
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./services/networking/coturn.nix
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./services/networking/croc.nix
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./services/networking/dante.nix
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./services/networking/ddclient.nix
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./services/networking/dhcpcd.nix
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88
nixos/modules/services/networking/croc.nix
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88
nixos/modules/services/networking/croc.nix
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@ -0,0 +1,88 @@
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{ config, lib, pkgs, ... }:
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let
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inherit (lib) types;
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cfg = config.services.croc;
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rootDir = "/run/croc";
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in
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{
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options.services.croc = {
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enable = lib.mkEnableOption "croc relay";
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ports = lib.mkOption {
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type = with types; listOf port;
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default = [9009 9010 9011 9012 9013];
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description = "Ports of the relay.";
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};
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pass = lib.mkOption {
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type = with types; either path str;
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default = "pass123";
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description = "Password or passwordfile for the relay.";
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};
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openFirewall = lib.mkEnableOption "opening of the peer port(s) in the firewall";
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debug = lib.mkEnableOption "debug logs";
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};
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config = lib.mkIf cfg.enable {
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systemd.services.croc = {
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.croc}/bin/croc --pass '${cfg.pass}' ${lib.optionalString cfg.debug "--debug"} relay --ports ${lib.concatMapStringsSep "," toString cfg.ports}";
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# The following options are only for optimizing:
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# systemd-analyze security croc
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AmbientCapabilities = "";
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CapabilityBoundingSet = "";
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DynamicUser = true;
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# ProtectClock= adds DeviceAllow=char-rtc r
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DeviceAllow = "";
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LockPersonality = true;
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MemoryDenyWriteExecute = true;
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MountAPIVFS = true;
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NoNewPrivileges = true;
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PrivateDevices = true;
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PrivateMounts = true;
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PrivateNetwork = lib.mkDefault false;
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PrivateTmp = true;
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PrivateUsers = true;
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ProcSubset = "pid";
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHome = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectProc = "noaccess";
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ProtectSystem = "strict";
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RemoveIPC = true;
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
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RestrictNamespaces = true;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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RootDirectory = rootDir;
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# Avoid mounting rootDir in the own rootDir of ExecStart='s mount namespace.
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InaccessiblePaths = [ "-+${rootDir}" ];
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BindReadOnlyPaths = [
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builtins.storeDir
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] ++ lib.optional (types.path.check cfg.pass) cfg.pass;
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# This is for BindReadOnlyPaths=
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# to allow traversal of directories they create in RootDirectory=.
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UMask = "0066";
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# Create rootDir in the host's mount namespace.
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RuntimeDirectory = [(baseNameOf rootDir)];
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RuntimeDirectoryMode = "700";
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SystemCallFilter = [
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"@system-service"
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"~@aio" "~@chown" "~@keyring" "~@memlock"
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"~@privileged" "~@resources" "~@setuid"
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"~@sync" "~@timer"
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];
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SystemCallArchitectures = "native";
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SystemCallErrorNumber = "EPERM";
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};
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};
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networking.firewall.allowedTCPPorts = lib.mkIf cfg.openFirewall cfg.ports;
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};
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meta.maintainers = with lib.maintainers; [ hax404 julm ];
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}
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@ -82,6 +82,7 @@ in
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couchdb = handleTest ./couchdb.nix {};
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cri-o = handleTestOn ["x86_64-linux"] ./cri-o.nix {};
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custom-ca = handleTest ./custom-ca.nix {};
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croc = handleTest ./croc.nix {};
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deluge = handleTest ./deluge.nix {};
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dhparams = handleTest ./dhparams.nix {};
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dnscrypt-proxy2 = handleTestOn ["x86_64-linux"] ./dnscrypt-proxy2.nix {};
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51
nixos/tests/croc.nix
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51
nixos/tests/croc.nix
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@ -0,0 +1,51 @@
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import ./make-test-python.nix ({ pkgs, ... }:
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let
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client = { pkgs, ... }: {
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environment.systemPackages = [ pkgs.croc ];
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};
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pass = pkgs.writeText "pass" "PassRelay";
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in {
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name = "croc";
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meta = with pkgs.stdenv.lib.maintainers; {
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maintainers = [ hax404 julm ];
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};
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nodes = {
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relay = {
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services.croc = {
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enable = true;
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pass = pass;
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openFirewall = true;
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};
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};
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sender = client;
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receiver = client;
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};
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testScript = ''
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start_all()
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# wait until relay is up
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relay.wait_for_unit("croc")
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relay.wait_for_open_port(9009)
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relay.wait_for_open_port(9010)
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relay.wait_for_open_port(9011)
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relay.wait_for_open_port(9012)
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relay.wait_for_open_port(9013)
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# generate testfiles and send them
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sender.wait_for_unit("multi-user.target")
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sender.execute("echo Hello World > testfile01.txt")
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sender.execute("echo Hello Earth > testfile02.txt")
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sender.execute(
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"croc --pass ${pass} --relay relay send --code topSecret testfile01.txt testfile02.txt &"
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)
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# receive the testfiles and check them
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receiver.succeed(
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"croc --pass ${pass} --yes --relay relay topSecret"
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)
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assert "Hello World" in receiver.succeed("cat testfile01.txt")
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assert "Hello Earth" in receiver.succeed("cat testfile02.txt")
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'';
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})
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