{ lib, pkgs, config, ...}: let inherit (lib) mkEnableOption mkOption types isDerivation hasAttr ; inherit (pkgs.pseudofile) dir symlink; inherit (pkgs) busybox; inherit (pkgs.liminix.networking) address interface; inherit (pkgs.liminix.services) bundle; type_service = types.package // { name = "service"; description = "s6-rc service"; check = x: isDerivation x && hasAttr "serviceType" x; }; in { options = { # analogous to nixos systemPackages, but we don't symlink into # /run/current-system, we just add the paths in /etc/profile defaultProfile = { packages = mkOption { type = types.listOf types.package; }; }; services = mkOption { type = types.attrsOf type_service; }; filesystem = mkOption { type = types.anything; }; kernel = { src = mkOption { type = types.package; } ; extraPatchPhase = mkOption { default = "true"; type = types.lines; } ; config = mkOption { # mostly the values are y n or m, but sometimes # other strings are also used type = types.attrsOf types.nonEmptyStr; }; }; boot = { commandLine = mkOption { type = types.listOf types.nonEmptyStr; default = []; }; }; }; config = { defaultProfile.packages = with pkgs; [ s6 s6-init-bin busybox execline s6-linux-init s6-rc ]; hardware.networkInterfaces = { lo = let iface = interface { type = "loopback"; device = "lo";}; in bundle { name = "loopback"; contents = [ (address iface { family = "inet4"; address ="127.0.0.1"; prefixLength = 8;}) (address iface { family = "inet6"; address ="::1"; prefixLength = 128;}) ]; }; }; kernel = rec { config = { IKCONFIG = "y"; IKCONFIG_PROC = "y"; PROC_FS = "y"; MODULES = "y"; MODULE_SIG = "y"; DEBUG_FS = "y"; # basic networking protocols NET = "y"; UNIX = "y"; INET = "y"; IPV6 = "y"; PACKET = "y"; # for ppp, tcpdump ... SYSVIPC= "y"; # s6-linux-init mounts this on /dev DEVTMPFS = "y"; # some or all of these may be fix for "tmpfs: Unknown parameter 'mode'" error TMPFS = "y"; TMPFS_POSIX_ACL = "y"; TMPFS_XATTR = "y"; FW_LOADER = "y"; FW_LOADER_COMPRESS = "y"; # We don't have a user helper, so we get multiple 60s pauses # at boot time unless we disable trying to call it. # https://lkml.org/lkml/2013/8/5/175 FW_LOADER_USER_HELPER = "n"; }; }; boot.commandLine = [ "console=ttyS0,115200 panic=10 oops=panic init=/bin/init loglevel=8 rootfstype=squashfs" "fw_devlink=off" ]; users.root = { uid = 0; gid= 0; gecos = "Root of all evaluation"; dir = "/"; passwd = lib.mkDefault ""; shell = "/bin/sh"; }; groups = { root = { gid = 0; usernames = ["root"]; }; system = { gid = 1; usernames = ["root"]; }; }; filesystem = dir { bin = dir { sh = symlink "${busybox}/bin/sh"; busybox = symlink "${busybox}/bin/busybox"; }; dev = let node = type: major: minor: mode : { inherit type major minor mode; }; in dir { null = node "c" "1" "3" "0666"; zero = node "c" "1" "5" "0666"; tty = node "c" "5" "0" "0666"; console = node "c" "5" "1" "0600"; pts = dir {}; }; etc = dir { profile = symlink (pkgs.writeScript ".profile" '' PATH=${lib.makeBinPath config.defaultProfile.packages} export PATH ''); }; proc = dir {}; run = dir {}; sys = dir {}; }; }; }