pyrox.dev
1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6
7 cfg = config.services.babeld;
8
9 conditionalBoolToString = value: if (isBool value) then (boolToString value) else (toString value);
10
11 paramsString = params:
12 concatMapStringsSep " " (name: "${name} ${conditionalBoolToString (getAttr name params)}")
13 (attrNames params);
14
15 interfaceConfig = name:
16 let
17 interface = getAttr name cfg.interfaces;
18 in
19 "interface ${name} ${paramsString interface}\n";
20
21 configFile = with cfg; pkgs.writeText "babeld.conf" (
22 (optionalString (cfg.interfaceDefaults != null) ''
23 default ${paramsString cfg.interfaceDefaults}
24 '')
25 + (concatMapStrings interfaceConfig (attrNames cfg.interfaces))
26 + extraConfig);
27
28in
29
30{
31
32 ###### interface
33
34 options = {
35
36 services.babeld = {
37
38 enable = mkOption {
39 default = false;
40 description = ''
41 Whether to run the babeld network routing daemon.
42 '';
43 };
44
45 interfaceDefaults = mkOption {
46 default = null;
47 description = ''
48 A set describing default parameters for babeld interfaces.
49 See <citerefentry><refentrytitle>babeld</refentrytitle><manvolnum>8</manvolnum></citerefentry> for options.
50 '';
51 type = types.nullOr (types.attrsOf types.unspecified);
52 example =
53 {
54 type = "tunnel";
55 "split-horizon" = true;
56 };
57 };
58
59 interfaces = mkOption {
60 default = {};
61 description = ''
62 A set describing babeld interfaces.
63 See <citerefentry><refentrytitle>babeld</refentrytitle><manvolnum>8</manvolnum></citerefentry> for options.
64 '';
65 type = types.attrsOf (types.attrsOf types.unspecified);
66 example =
67 { enp0s2 =
68 { type = "wired";
69 "hello-interval" = 5;
70 "split-horizon" = "auto";
71 };
72 };
73 };
74
75 extraConfig = mkOption {
76 default = "";
77 description = ''
78 Options that will be copied to babeld.conf.
79 See <citerefentry><refentrytitle>babeld</refentrytitle><manvolnum>8</manvolnum></citerefentry> for details.
80 '';
81 };
82 };
83
84 };
85
86
87 ###### implementation
88
89 config = mkIf config.services.babeld.enable {
90
91 systemd.services.babeld = {
92 description = "Babel routing daemon";
93 after = [ "network.target" ];
94 wantedBy = [ "multi-user.target" ];
95 serviceConfig.ExecStart = "${pkgs.babeld}/bin/babeld -c ${configFile}";
96 };
97
98 };
99
100}