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|
{ config, lib, pkgs, ... }:
let
wan-dev = "eno1";
lan-dev = "eno2";
mullvadPort = config.orbekk.mullvad.listenPort;
mullvadMark = 30;
in
{
orbekk.mullvad.enable = true;
networking.networkmanager.enable = lib.mkForce false;
networking.nameservers = [ "8.8.8.8" ];
networking.vlans = builtins.listToAttrs (map (id: { name = "${lan-dev}.${toString id}"; value = { inherit id; interface = lan-dev; }; } ) [30 100 255]);
systemd.services.update-dynamic-dns = {
description = "Update dynamic dns records";
path = with pkgs; [bash dnsutils nettools gawk iproute];
startLimitIntervalSec = 5;
script = toString ../tools/update-dns.sh;
};
networking.dhcpcd.runHook = ''
systemctl restart update-dynamic-dns.service
'';
networking.firewall = {
enable = lib.mkForce false;
allowedTCPPorts = lib.mkForce [ ];
allowedUDPPorts = lib.mkForce [ ];
allowPing = true;
logRefusedConnections = false;
checkReversePath = false;
};
services.ddclient = {
enable = true;
configFile = "/opt/secret/he-ddclient.conf";
};
services.ferm = {
enable = true;
config = ''
@def $DEV_UNTRUSTED_LAN = (${lan-dev}.30);
@def $DEV_LAN = (${lan-dev}.100 ${lan-dev}.255);
@def $DEV_WAN = (${wan-dev} he0 mullvad);
@def $NET_LAN = 10.0.0.0/8;
domain (ip ip6) table filter {
chain INPUT {
policy DROP;
mod state state INVALID DROP;
mod state state (ESTABLISHED RELATED) ACCEPT;
interface lo ACCEPT;
proto icmp ACCEPT;
proto (udp udp) dport dhcpv6-client ACCEPT;
proto 41 ACCEPT; # IPv6 sit tunnel
interface ($DEV_WAN $DEV_UNTRUSTED_LAN) @subchain "wan_services" {
# Valheim
proto udp dport 3400 ACCEPT;
proto udp dport 3401 ACCEPT;
proto (tcp udp) dport (bootpc bootps) ACCEPT;
proto tcp dport ssh ACCEPT;
proto (tcp udp) dport domain ACCEPT;
proto tcp dport (http https) ACCEPT;
proto udp dport ${toString mullvadPort} ACCEPT;
}
interface $DEV_LAN @subchain "lan_services" {
# Valheim
proto udp dport 3400 ACCEPT;
proto udp dport 3401 ACCEPT;
proto (tcp udp) dport (ssh domain bootpc bootps) ACCEPT;
proto tcp dport (http https) ACCEPT;
# prometheus temp rule
proto tcp dport 11112 ACCEPT;
# RTMP streaming
proto (tcp udp) dport 1935 ACCEPT;
# Chromecast
# proto udp dport 32768:61000 ACCEPT;
# proto udp dport (5353 1900) ACCEPT;
# proto tcp dport (8008 8009) ACCEPT;
# chain logdrop {
# LOG log-level warning log-prefix "dropped-lan ";
# DROP;
# }
# jump logdrop;
}
}
chain OUTPUT policy ACCEPT;
chain FORWARD {
policy DROP;
mod state state INVALID DROP;
mod state state (ESTABLISHED RELATED) ACCEPT;
interface $DEV_UNTRUSTED_LAN outerface mullvad ACCEPT;
interface $DEV_LAN ACCEPT;
}
}
domain ip6 table filter chain INPUT {
proto ipv6-icmp ACCEPT;
}
domain (ip ip6) table filter chain logdrop {
LOG log-level warning log-prefix "dropped ";
DROP;
}
domain (ip ip6) table filter chain INPUT {
interface $DEV_WAN DROP;
jump logdrop;
}
domain ip table nat {
chain POSTROUTING {
saddr $NET_LAN outerface $DEV_WAN MASQUERADE;
}
}
domain (ip ip6) table mangle {
chain PREROUTING {
interface ${lan-dev}.30 MARK set-mark ${toString mullvadMark};
}
}
'';
};
services = {
openssh.enable = lib.mkDefault true;
openssh.passwordAuthentication = false;
};
boot.kernel.sysctl = {
"net.ipv4.conf.all.forwarding" = true;
"net.ipv4.conf.default.forwarding" = true;
"net.ipv6.conf.all.forwarding" = true;
"net.ipv6.conf.default.forwarding" = true;
};
#services.hostapd = {
# enable = true;
# # driver = "iwlwifi";
# ssid = "2c";
# wpaPassphrase = "mintchip";
# interface = "${lan-dev}";
# hwMode = "g";
# channel = 11;
# extraConfig = ''
# country_code=US
# wpa_key_mgmt=WPA-PSK
# rsn_pairwise=CCMP
# '';
#};
networking.dhcpcd = {
# Wain for v4 and v6 addresses.
# wait = "both";
extraConfig = ''
debug
noipv6rs
interface ${wan-dev}
dhcp
ipv6rs
ia_na 0
# ia_pd 1/::/64 ${lan-dev}.100/0/64
'';
};
systemd.services.dhcpcd.preStart = lib.mkAfter ''
${pkgs.iproute}/bin/ip link set dev ${wan-dev} address ${config.networking.interfaces.${wan-dev}.macAddress};
'';
services.dnsmasq = {
enable = true;
servers = [ "1.1.1.1" "8.8.8.8" "8.8.4.4" ];
extraConfig = ''
port=0
dhcp-authoritative
dhcp-range=10.65.30.100,10.65.30.255,255.255.255.0,24h
dhcp-range=10.64.31.1,10.64.31.255,255.255.254.0,24h
dhcp-option=option:router,10.65.30.1
dhcp-option=option:dns-server,1.1.1.1,8.8.8.8,8.8.4.4
dhcp-option=option:netmask,255.255.255.0
dhcp-range=::,constructor:${lan-dev}.100,slaac,off-link
'';
};
networking.sits.he0 = {
dev = wan-dev;
local = "74.73.86.185";
remote = "209.51.161.14";
};
networking.iproute2.enable = true;
networking.iproute2.rttablesExtraConfig = ''
${toString mullvadMark} mullvad
200 he
'';
networking.localCommands = ''
ip -6 rule add from 2001:470:8e2e::/48 lookup he prio 0 || true
ip -6 route flush cache
ip -6 route replace default dev he0 src 2001:470:8e2e:20::d table he
ip -6 route flush cache
'';
networking.wireguard.interfaces.mullvad.postSetup = ''
ip route flush cache
ip rule add fwmark ${toString mullvadMark} table mullvad
ip route replace default dev mullvad table mullvad
ip route flush cache
'';
# boot.kernel.sysctl."net.ipv6.conf.${wan-dev}.disable_ipv6" = true;
networking.interfaces.${wan-dev} = {
macAddress = "3c:97:0e:19:7e:5c";
useDHCP = true;
};
networking.interfaces.he0.ipv6 = {
addresses = [
{ address = "2001:470:1f06:1195::2"; prefixLength = 64; }
{ address = "2001:470:8e2e:20::d"; prefixLength = 64; }
];
# routes = [{ address = "::"; prefixLength = 0; }];
};
networking.interfaces."${lan-dev}".useDHCP = false;
networking.interfaces."${lan-dev}.255".useDHCP = true;
networking.interfaces."${lan-dev}.100" = {
ipv4.addresses = [ {
address = "10.65.30.1";
prefixLength = 24;
} ];
useDHCP = false;
};
networking.interfaces."${lan-dev}.30" = {
ipv4.addresses = [ {
address = "10.64.30.1";
prefixLength = 23;
} ];
useDHCP = false;
};
}
|
