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liminix/examples/demo.nix

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# This is an example configuration for a "typical" small office/home
# router and wifi access point.
# You need to copy it to another filename and change the configuration
# wherever the text "EDIT" appears - please consult the tutorial
# documentation for details.
{ config, pkgs, lib, ... } :
let
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inherit (pkgs.liminix.services) bundle oneshot longrun;
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inherit (pkgs) serviceFns;
# EDIT: you can pick your preferred RFC1918 address space
# for NATted connections, if you don't like this one.
ipv4LocalNet = "10.8.0";
svc = config.system.service;
in rec {
boot = {
tftp = {
freeSpaceBytes = 3 * 1024 * 1024;
serverip = "10.0.0.1";
ipaddr = "10.0.0.8";
};
};
imports = [
../modules/bridge
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../modules/dhcp6c
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../modules/dnsmasq
../modules/firewall
../modules/hostapd
../modules/network
../modules/ntp
../modules/ppp
../modules/ssh
../modules/vlan
../modules/wlan.nix
];
rootfsType = "jffs2";
hostname = "the-internet"; # EDIT
services.hostap = svc.hostapd.build {
interface = config.hardware.networkInterfaces.wlan;
# EDIT: you will want to change the obvious things
# here to values of your choice
params = {
ssid = "the-internet";
channel = "1";
country_code = "GB";
wpa_passphrase = "not a real wifi password";
hw_mode="g";
ieee80211n = 1;
auth_algs = 1; # 1=wpa2, 2=wep, 3=both
wpa = 2; # 1=wpa, 2=wpa2, 3=both
wpa_key_mgmt = "WPA-PSK";
wpa_pairwise = "TKIP CCMP"; # auth for wpa (may not need this?)
rsn_pairwise = "CCMP"; # auth for wpa2
wmm_enabled = 1;
};
};
services.int = svc.network.address.build {
interface = svc.bridge.primary.build { ifname = "int"; };
family = "inet"; address = "${ipv4LocalNet}.1"; prefixLength = 16;
};
services.bridge = svc.bridge.members.build {
primary = services.int;
members = with config.hardware.networkInterfaces;
[ wlan lan ];
};
services.ntp = svc.ntp.build {
pools = { "pool.ntp.org" = ["iburst"]; };
makestep = { threshold = 1.0; limit = 3; };
};
services.sshd = svc.ssh.build { };
users.root = {
# EDIT: choose a root password and then use
# "mkpasswd -m sha512crypt" to determine the hash.
# It should start wirh $6$.
passwd = "$6$6HG7WALLQQY1LQDE$428cnouMJ7wVmyK9.dF1uWs7t0z9ztgp3MHvN5bbeo0M4Kqg/u2ThjoSHIjCEJQlnVpDOaEKcOjXAlIClHWN21";
openssh.authorizedKeys.keys = [
# EDIT: you can add your ssh pubkey here
# "ssh-rsa AAAAB3NzaC1....H6hKd user@example.com";
];
};
services.dns =
let interface = services.int;
in svc.dnsmasq.build {
resolvconf = services.resolvconf;
inherit interface;
ranges = [
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"${ipv4LocalNet}.10,${ipv4LocalNet}.249"
# EDIT: ... maybe. In this example we use "ra-stateless",
# meaning dnsmasq sends router advertisements with the O and A
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# bits set, and provides a stateless DHCP service. The client
# will use a SLAAC address, and use DHCP for other
# configuration information.
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# If you didn't understand the preceding sentence then
# the default is _probably_ fine, but if you need
# a DHCP-only IPv6 network or some other different
# configuration, this is the place to change it.
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"::,constructor:$(output ${interface} ifname),ra-stateless"
];
# EDIT: choose a domain name for the DNS names issued for your
# DHCP-issued hosts
domain = "lan.example.com";
};
services.wan = svc.pppoe.build {
interface = config.hardware.networkInterfaces.wan;
ppp-options = [
"debug" "+ipv6" "noauth"
# EDIT: change the strings "chap-username"
# and "chap-secret" to match the username/password
# provided by your ISP for PPP logins
"name" "chap-username"
"password" "chap-secret"
];
};
services.resolvconf = oneshot rec {
dependencies = [ services.wan ];
name = "resolvconf";
up = ''
. ${serviceFns}
( in_outputs ${name}
echo "nameserver $(output ${services.wan} ns1)" > resolv.conf
echo "nameserver $(output ${services.wan} ns2)" >> resolv.conf
chmod 0444 resolv.conf
)
'';
};
filesystem =
let inherit (pkgs.pseudofile) dir symlink;
in dir {
etc = dir {
"resolv.conf" = symlink "${services.resolvconf}/.outputs/resolv.conf";
};
};
services.defaultroute4 = svc.network.route.build {
via = "$(output ${services.wan} address)";
target = "default";
dependencies = [ services.wan ];
};
services.defaultroute6 = svc.network.route.build {
via = "$(output ${services.wan} ipv6-peer-address)";
target = "default";
interface = services.wan;
};
services.firewall = svc.firewall.build {
ruleset = import ./demo-firewall.nix;
};
services.packet_forwarding = svc.network.forward.build { };
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# We expect the ISP uses DHCP6 to issue IPv6 addresses. There is a
# service to request address information in the form of a DHCP
# lease, and two dependent services that listen for updates to the
# DHCP address information and update the addresses of the WAN and
# LAN interfaces respectively.
services.dhcp6c =
let client = svc.dhcp6c.client.build {
interface = services.wan;
};
in bundle {
name = "dhcp6c";
contents = [
(svc.dhcp6c.prefix.build {
# if your ISP provides you a real IPv6 prefix for your local
# network (usually a /64 or /48 or something in between the
# two), this service subscribes to that "prefix delegation"
# information, and uses it to assign an address to the LAN
# device. dnsmasq will notice this address and use it to
# form the addresses it hands out to devices on the lan
inherit client;
interface = services.int;
})
(svc.dhcp6c.address.build {
# if your ISP provides you a regular global IPv6 address,
# this service subscribes to that information and assigns
# the address to the WAN device.
inherit client;
interface = services.wan;
})
];
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};
defaultProfile.packages = with pkgs; [
min-collect-garbage
];
}