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|
{ config, lib, pkgs, ... }:
with lib;
let
clamavUser = "clamav";
stateDir = "/var/lib/clamav";
runDir = "/var/run/clamav";
logDir = "/var/log/clamav";
clamavGroup = clamavUser;
cfg = config.services.clamav;
clamdConfigFile = pkgs.writeText "clamd.conf" ''
DatabaseDirectory ${stateDir}
LocalSocket ${runDir}/clamd.ctl
LogFile ${logDir}/clamav.log
PidFile ${runDir}/clamd.pid
User clamav
${cfg.daemon.extraConfig}
'';
in
{
options = {
services.clamav = {
daemon = {
enable = mkEnableOption "clamd daemon";
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Extra configuration for clamd. Contents will be added verbatim to the
configuration file.
'';
};
};
updater = {
enable = mkEnableOption "freshclam updater";
frequency = mkOption {
default = 12;
description = ''
Number of database checks per day.
'';
};
config = mkOption {
default = "";
description = ''
Extra configuration for freshclam. Contents will be added verbatim to the
configuration file.
'';
};
};
};
};
config = mkIf cfg.updater.enable or cfg.daemon.enable {
environment.systemPackages = [ pkgs.clamav ];
users.extraUsers = singleton {
name = clamavUser;
uid = config.ids.uids.clamav;
description = "ClamAV daemon user";
home = stateDir;
};
users.extraGroups = singleton {
name = clamavGroup;
gid = config.ids.gids.clamav;
};
services.clamav.updater.config = mkIf cfg.updater.enable ''
DatabaseDirectory ${stateDir}
Foreground yes
Checks ${toString cfg.updater.frequency}
DatabaseMirror database.clamav.net
'';
systemd.services.clamd = mkIf cfg.daemon.enable {
description = "ClamAV daemon (clamd)";
path = [ pkgs.clamav ];
after = [ "network.target" "freshclam.service" ];
requires = [ "freshclam.service" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -m 0755 -p ${logDir}
mkdir -m 0755 -p ${runDir}
chown ${clamavUser}:${clamavGroup} ${logDir}
chown ${clamavUser}:${clamavGroup} ${runDir}
'';
serviceConfig = {
ExecStart = "${pkgs.clamav}/bin/clamd --config-file=${clamdConfigFile}";
Type = "forking";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
Restart = "on-failure";
RestartSec = "10s";
StartLimitInterval = "1min";
};
};
systemd.services.freshclam = mkIf cfg.updater.enable {
description = "ClamAV updater (freshclam)";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = [ pkgs.clamav ];
preStart = ''
mkdir -m 0755 -p ${stateDir}
chown ${clamavUser}:${clamavGroup} ${stateDir}
'';
serviceConfig = {
ExecStart = "${pkgs.clamav}/bin/freshclam --daemon --config-file=${pkgs.writeText "freshclam.conf" cfg.updater.config}";
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
Restart = "on-failure";
RestartSec = "10s";
StartLimitInterval = "1min";
};
};
};
}
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