liminix-fork/modules/base.nix

161 lines
4.7 KiB
Nix

{ lib, pkgs, config, ...}:
let
inherit (lib) mkEnableOption mkOption types isDerivation hasAttr ;
inherit (pkgs.pseudofile) dir symlink;
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; };
rootfsType = mkOption {
default = "squashfs";
type = types.str;
};
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 = [];
};
tftp = {
loadAddress = mkOption { type = types.str; };
# These names match the uboot environment variables. I reserve
# the right to change them if I think of better ones.
ipaddr = mkOption { type = types.str; };
serverip = mkOption { type = types.str; };
};
};
};
config = {
defaultProfile.packages = with pkgs;
[ s6 s6-init-bin 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";
KEXEC = "y";
MODULES = "y";
MODULE_SIG = "y";
DEBUG_FS = "y";
MIPS_BOOTLOADER_CMDLINE_REQUIRE_COOKIE = "y";
MIPS_BOOTLOADER_CMDLINE_COOKIE = "\"liminix\"";
MIPS_CMDLINE_DTB_EXTEND = "y";
# basic networking protocols
NET = "y";
UNIX = "y";
INET = "y";
IPV6 = "y";
PACKET = "y"; # for ppp, tcpdump ...
SYSVIPC= "y";
# disabling this option causes the kernel to use an "empty"
# initramfs instead: it has a /dev/console node and not much
# else. Note that pid 1 is started *before* the root
# filesystem is mounted and it expects /dev/console to be
# present already
BLK_DEV_INITRD = lib.mkDefault "n"; # overriden by initramfs module
# 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"
"root=${config.hardware.rootDevice}"
"rootfstype=${config.rootfsType}"
"fw_devlink=off"
];
users.root = {
uid = 0; gid= 0; gecos = "Root of all evaluation";
dir = "/home/root/";
passwd = lib.mkDefault "";
shell = "/bin/sh";
};
groups = {
root = {
gid = 0; usernames = ["root"];
};
system = {
gid = 1; usernames = ["root"];
};
};
filesystem = dir {
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}:/bin
export PATH
'');
};
proc = dir {};
run = dir {};
sys = dir {};
};
};
}