68 lines
1.9 KiB
Nix
68 lines
1.9 KiB
Nix
{ pkgs, config, lib, ... } :
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let
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inherit (lib) mkIf concatStrings concatStringsSep concatMapStrings toList
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mapAttrs mapAttrsToList;
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cfg = config.services.kerberos_server;
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kerberos = config.krb5.kerberos;
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stateDir = "/var/lib/krb5kdc";
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PIDFile = "/run/kdc.pid";
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aclMap = {
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add = "a"; cpw = "c"; delete = "d"; get = "i"; list = "l"; modify = "m";
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all = "*";
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};
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aclFiles = mapAttrs
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(name: {acl, ...}: (pkgs.writeText "${name}.acl" (concatMapStrings (
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{principal, access, target, ...} :
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let access_code = map (a: aclMap.${a}) (toList access); in
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"${principal} ${concatStrings access_code} ${target}\n"
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) acl))) cfg.realms;
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kdcConfigs = mapAttrsToList (name: value: ''
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${name} = {
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acl_file = ${value}
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}
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'') aclFiles;
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kdcConfFile = pkgs.writeText "kdc.conf" ''
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[realms]
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${concatStringsSep "\n" kdcConfigs}
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'';
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env = {
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# What Debian uses, could possibly link directly to Nix store?
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KRB5_KDC_PROFILE = "/etc/krb5kdc/kdc.conf";
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};
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in
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{
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config = mkIf (cfg.enable && kerberos == pkgs.krb5Full) {
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systemd.services.kadmind = {
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description = "Kerberos Administration Daemon";
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wantedBy = [ "multi-user.target" ];
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preStart = ''
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mkdir -m 0755 -p ${stateDir}
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'';
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serviceConfig.ExecStart = "${kerberos}/bin/kadmind -nofork";
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restartTriggers = [ kdcConfFile ];
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environment = env;
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};
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systemd.services.kdc = {
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description = "Key Distribution Center daemon";
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wantedBy = [ "multi-user.target" ];
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preStart = ''
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mkdir -m 0755 -p ${stateDir}
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'';
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serviceConfig = {
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Type = "forking";
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PIDFile = PIDFile;
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ExecStart = "${kerberos}/bin/krb5kdc -P ${PIDFile}";
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};
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restartTriggers = [ kdcConfFile ];
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environment = env;
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};
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environment.etc = {
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"krb5kdc/kdc.conf".source = kdcConfFile;
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};
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environment.variables = env;
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};
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}
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