pyrox.dev
1{ config, lib, pkgs, ... }:
2with lib;
3let
4 clamavUser = "clamav";
5 stateDir = "/var/lib/clamav";
6 clamavGroup = clamavUser;
7 cfg = config.services.clamav;
8in
9{
10 ###### interface
11
12 options = {
13
14 services.clamav = {
15 updater = {
16 enable = mkOption {
17 default = false;
18 description = ''
19 Whether to enable automatic ClamAV virus definitions database updates.
20 '';
21 };
22
23 frequency = mkOption {
24 default = 12;
25 description = ''
26 Number of database checks per day.
27 '';
28 };
29
30 config = mkOption {
31 default = "";
32 description = ''
33 Extra configuration for freshclam. Contents will be added verbatim to the
34 configuration file.
35 '';
36 };
37 };
38 };
39 };
40
41 ###### implementation
42
43 config = mkIf cfg.updater.enable {
44 environment.systemPackages = [ pkgs.clamav ];
45 users.extraUsers = singleton
46 { name = clamavUser;
47 uid = config.ids.uids.clamav;
48 description = "ClamAV daemon user";
49 home = stateDir;
50 };
51
52 users.extraGroups = singleton
53 { name = clamavGroup;
54 gid = config.ids.gids.clamav;
55 };
56
57 services.clamav.updater.config = ''
58 DatabaseDirectory ${stateDir}
59 Foreground yes
60 Checks ${toString cfg.updater.frequency}
61 DatabaseMirror database.clamav.net
62 '';
63
64 jobs = {
65 clamav_updater = {
66 name = "clamav-updater";
67 startOn = "started network-interfaces";
68 stopOn = "stopping network-interfaces";
69
70 preStart = ''
71 mkdir -m 0755 -p ${stateDir}
72 chown ${clamavUser}:${clamavGroup} ${stateDir}
73 '';
74 exec = "${pkgs.clamav}/bin/freshclam --daemon --config-file=${pkgs.writeText "freshclam.conf" cfg.updater.config}";
75 };
76 };
77
78 };
79
80}