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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.babeld;
conditionalBoolToString = value: if (isBool value) then (boolToString value) else (toString value);
paramsString = params:
concatMapStringsSep " " (name: "${name} ${conditionalBoolToString (getAttr name params)}")
(attrNames params);
interfaceConfig = name:
let
interface = getAttr name cfg.interfaces;
in
"interface ${name} ${paramsString interface}\n";
configFile = with cfg; pkgs.writeText "babeld.conf" (
(optionalString (cfg.interfaceDefaults != null) ''
default ${paramsString cfg.interfaceDefaults}
'')
+ (concatMapStrings interfaceConfig (attrNames cfg.interfaces))
+ extraConfig);
in
{
###### interface
options = {
services.babeld = {
enable = mkEnableOption "the babeld network routing daemon";
interfaceDefaults = mkOption {
default = null;
description = ''
A set describing default parameters for babeld interfaces.
See <citerefentry><refentrytitle>babeld</refentrytitle><manvolnum>8</manvolnum></citerefentry> for options.
'';
type = types.nullOr (types.attrsOf types.unspecified);
example =
{
type = "tunnel";
split-horizon = true;
};
};
interfaces = mkOption {
default = {};
description = ''
A set describing babeld interfaces.
See <citerefentry><refentrytitle>babeld</refentrytitle><manvolnum>8</manvolnum></citerefentry> for options.
'';
type = types.attrsOf (types.attrsOf types.unspecified);
example =
{ enp0s2 =
{ type = "wired";
hello-interval = 5;
split-horizon = "auto";
};
};
};
extraConfig = mkOption {
default = "";
description = ''
Options that will be copied to babeld.conf.
See <citerefentry><refentrytitle>babeld</refentrytitle><manvolnum>8</manvolnum></citerefentry> for details.
'';
};
};
};
###### implementation
config = mkIf config.services.babeld.enable {
systemd.services.babeld = {
description = "Babel routing daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
ExecStart = "${pkgs.babeld}/bin/babeld -c ${configFile} -I /run/babeld/babeld.pid -S /var/lib/babeld/state";
CapabilityBoundingSet = [ "CAP_NET_ADMIN" ];
IPAddressAllow = [ "fe80::/64" "ff00::/8" "::1/128" "127.0.0.0/8" ];
IPAddressDeny = "any";
LockPersonality = true;
NoNewPrivileges = true;
MemoryDenyWriteExecute = true;
ProtectSystem = "strict";
ProtectClock = true;
ProtectKernelTunables = false; # Couldn't write sysctl: Read-only file system
ProtectKernelModules = true;
ProtectKernelLogs = true;
ProtectControlGroups = true;
RestrictAddressFamilies = [ "AF_NETLINK" "AF_INET6" ];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
RemoveIPC = true;
ProtectHome = true;
ProtectHostname = true;
PrivateMounts = true;
PrivateTmp = true;
PrivateDevices = true;
PrivateUsers = false; # kernel_route(ADD): Operation not permitted
SystemCallArchitectures = "native";
SystemCallFilter = [ "@system-service" ];
UMask = "0177";
RuntimeDirectory = "babeld";
StateDirectory = "babeld";
};
};
};
}
|
