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{ pkgs, config, lib, ... } :
let
inherit (lib) mkIf concatStringsSep concatMapStrings toList mapAttrs
mapAttrsToList;
cfg = config.services.kerberos_server;
kerberos = config.krb5.kerberos;
stateDir = "/var/heimdal";
aclFiles = mapAttrs
(name: {acl, ...}: pkgs.writeText "${name}.acl" (concatMapStrings ((
{principal, access, target, ...} :
"${principal}\t${concatStringsSep "," (toList access)}\t${target}\n"
)) acl)) cfg.realms;
kdcConfigs = mapAttrsToList (name: value: ''
database = {
dbname = ${stateDir}/heimdal
acl_file = ${value}
}
'') aclFiles;
kdcConfFile = pkgs.writeText "kdc.conf" ''
[kdc]
${concatStringsSep "\n" kdcConfigs}
'';
in
{
# No documentation about correct triggers, so guessing at them.
config = mkIf (cfg.enable && kerberos == pkgs.heimdal) {
systemd.services.kadmind = {
description = "Kerberos Administration Daemon";
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -m 0755 -p ${stateDir}
'';
serviceConfig.ExecStart =
"${kerberos}/libexec/heimdal/kadmind --config-file=/etc/heimdal-kdc/kdc.conf";
restartTriggers = [ kdcConfFile ];
};
systemd.services.kdc = {
description = "Key Distribution Center daemon";
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -m 0755 -p ${stateDir}
'';
serviceConfig.ExecStart =
"${kerberos}/libexec/heimdal/kdc --config-file=/etc/heimdal-kdc/kdc.conf";
restartTriggers = [ kdcConfFile ];
};
systemd.services.kpasswdd = {
description = "Kerberos Password Changing daemon";
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -m 0755 -p ${stateDir}
'';
serviceConfig.ExecStart = "${kerberos}/libexec/heimdal/kpasswdd";
restartTriggers = [ kdcConfFile ];
};
environment.etc = {
# Can be set via the --config-file option to KDC
"heimdal-kdc/kdc.conf".source = kdcConfFile;
};
};
}
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