80 lines
1.7 KiB
Nix
80 lines
1.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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clamavUser = "clamav";
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stateDir = "/var/lib/clamav";
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clamavGroup = clamavUser;
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cfg = config.services.clamav;
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in
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{
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###### interface
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options = {
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services.clamav = {
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updater = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable automatic ClamAV virus definitions database updates.
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'';
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};
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frequency = mkOption {
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default = 12;
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description = ''
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Number of database checks per day.
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'';
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};
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config = mkOption {
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default = "";
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description = ''
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Extra configuration for freshclam. Contents will be added verbatim to the
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configuration file.
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'';
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};
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};
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};
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};
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###### implementation
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config = mkIf cfg.updater.enable {
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environment.systemPackages = [ pkgs.clamav ];
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users.extraUsers = singleton
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{ name = clamavUser;
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uid = config.ids.uids.clamav;
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description = "ClamAV daemon user";
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home = stateDir;
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};
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users.extraGroups = singleton
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{ name = clamavGroup;
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gid = config.ids.gids.clamav;
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};
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services.clamav.updater.config = ''
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DatabaseDirectory ${stateDir}
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Foreground yes
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Checks ${toString cfg.updater.frequency}
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DatabaseMirror database.clamav.net
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'';
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jobs = {
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clamav_updater = {
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name = "clamav-updater";
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startOn = "started network-interfaces";
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stopOn = "stopping network-interfaces";
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preStart = ''
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mkdir -m 0755 -p ${stateDir}
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chown ${clamavUser}:${clamavGroup} ${stateDir}
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'';
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exec = "${pkgs.clamav}/bin/freshclam --daemon --config-file=${pkgs.writeText "freshclam.conf" cfg.updater.config}";
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};
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};
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};
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}
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