From d2c388ce3928764a78e4158162cb64ce3b5e43ce Mon Sep 17 00:00:00 2001 From: tv Date: Thu, 21 Sep 2017 20:59:38 +0200 Subject: iana-etc module: init --- krebs/3modules/default.nix | 1 + krebs/3modules/iana-etc.nix | 55 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 krebs/3modules/iana-etc.nix (limited to 'krebs/3modules') diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix index 42df3f053..48cf7971b 100644 --- a/krebs/3modules/default.nix +++ b/krebs/3modules/default.nix @@ -24,6 +24,7 @@ let ./go.nix ./hidden-ssh.nix ./htgen.nix + ./iana-etc.nix ./iptables.nix ./kapacitor.nix ./monit.nix diff --git a/krebs/3modules/iana-etc.nix b/krebs/3modules/iana-etc.nix new file mode 100644 index 000000000..f6d47f27e --- /dev/null +++ b/krebs/3modules/iana-etc.nix @@ -0,0 +1,55 @@ +with import ; +{ config, pkgs, ... }: { + + options.krebs.iana-etc.services = mkOption { + default = {}; + type = types.attrsOf (types.submodule ({ config, ... }: { + options = { + port = mkOption { + default = config._module.args.name; + type = types.addCheck types.str (test "[1-9][0-9]*"); + }; + } // genAttrs ["tcp" "udp"] (protocol: mkOption { + default = null; + type = types.nullOr (types.submodule { + options = { + name = mkOption { + type = types.str; + }; + }; + }); + }); + })); + }; + + config.environment.etc = mkIf (config.krebs.iana-etc.services != {}) { + services.source = mkForce (pkgs.runCommand "krebs-iana-etc" {} '' + exec < ${pkgs.iana_etc}/etc/services + exec > $out + awk -F '[ /]+' ' + BEGIN { + port=0 + } + ${concatMapStringsSep "\n" (entry: '' + $2 == ${entry.port} { + port=$2 + next + } + port == ${entry.port} { + ${concatMapStringsSep "\n" + (proto: let + s = "${entry.${proto}.name} ${entry.port}/${proto}"; + in + "print ${toJSON s}") + (filter (proto: entry.${proto} != null) ["tcp" "udp"])} + port=0 + } + '') (attrValues config.krebs.iana-etc.services)} + { + print $0 + } + ' + ''); + }; + +} -- cgit v1.2.3