commit b5b9b0351880b051f68f04be9857c6d7f935309c · pyrox.dev/nixpkgs

+72 -35
nixos/modules/services/security/clamav.nix
···

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       let

     

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         clamavUser = "clamav";

     

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         stateDir = "/var/lib/clamav";

     

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         runDir = "/var/run/clamav";

     

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         logDir = "/var/log/clamav";

     

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         clamavGroup = clamavUser;

     

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         cfg = config.services.clamav;

     

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         clamdConfigFile = pkgs.writeText "clamd.conf" ''

     

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           DatabaseDirectory ${stateDir}

     

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           LocalSocket ${runDir}/clamd.ctl

     

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           LogFile ${logDir}/clamav.log

     

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           PidFile ${runDir}/clamd.pid

     

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           User clamav

     

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       +
       

     

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           ${cfg.daemon.extraConfig}

     

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         '';

     

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       in

     

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       {

     

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       -
         ###### interface

     

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       -
       

     

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         options = {

     

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           services.clamav = {

     

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             daemon = {

     

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               enable = mkEnableOption "clamd daemon";

     

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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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               extraConfig = mkOption {

     

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                 type = types.lines;

     

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                 default = "";

     

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                 description = ''

     

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                   Extra configuration for clamd. 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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             updater = {

     

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               enable = mkEnableOption "freshclam updater";

     

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               frequency = mkOption {

     

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                 default = 12;

     
···

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           };

     

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         };

     

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         ###### implementation

     

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       -
       

     

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         config = mkIf cfg.updater.enable {

     

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         config = mkIf cfg.updater.enable or cfg.daemon.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.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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           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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           services.clamav.updater.config = mkIf cfg.updater.enable ''

     

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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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           systemd.services.clamd = mkIf cfg.daemon.enable {

     

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             description = "ClamAV daemon (clamd)";

     

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             path = [ pkgs.clamav ];

     

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             after = [ "network.target" "freshclam.service" ];

     

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             requires = [ "freshclam.service" ];

     

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             wantedBy = [ "multi-user.target" ];

     

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             preStart = ''

     

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               mkdir -m 0755 -p ${logDir}

     

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               mkdir -m 0755 -p ${runDir}

     

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               chown ${clamavUser}:${clamavGroup} ${logDir}

     

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               chown ${clamavUser}:${clamavGroup} ${runDir}

     

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             '';

     

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             serviceConfig = {

     

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               ExecStart = "${pkgs.clamav}/bin/clamd --config-file=${clamdConfigFile}";

     

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               Type = "forking";

     

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               ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";

     

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               Restart = "on-failure";

     

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               RestartSec = "10s";

     

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               StartLimitInterval = "1min";

     

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             };

     

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           };

     

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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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           systemd.services.freshclam = mkIf cfg.updater.enable {

     

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             description = "ClamAV updater (freshclam)";

     

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             after = [ "network.target" ];

     

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             wantedBy = [ "multi-user.target" ];

     

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             path = [ pkgs.clamav ];

     

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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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             serviceConfig = {

     

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               ExecStart = "${pkgs.clamav}/bin/freshclam --daemon --config-file=${pkgs.writeText "freshclam.conf" cfg.updater.config}";

     

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               ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";

     

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               Restart = "on-failure";

     

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               RestartSec = "10s";

     

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               StartLimitInterval = "1min";

     

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             };

     

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           };

     

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       -
       

     

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         };

     

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       -
       

     

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       }