fuuko: Add router service

This now mostly replaces ayu, which has been sitting between upstream
and the switch the last 6 months.

It now also configures routing over Mullvad, which also finally enables
IPv6 (I don’t understand how people get away with not providing it
natively in 2023).

Once I get a WLAN card, it will also host its own access point, which
currently still relies on ayu as “dumb AP” (as OpenWRT calls it).
nazuna
Simon Bruder 2023-04-02 01:14:01 +02:00
parent a6af0f92b4
commit 444aa962b5
Signed by: simon
GPG Key ID: 8D3C82F9F309F8EC
5 changed files with 227 additions and 7 deletions

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@ -9,6 +9,7 @@
./services/languagetool.nix
./services/media-backup.nix
./services/media.nix
./services/router.nix
./services/torrent.nix
];

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@ -75,11 +75,6 @@
powerManagement.cpuFreqGovernor = "schedutil";
networking = {
useDHCP = false;
interfaces.enp8s0.useDHCP = true;
};
services.logind.extraConfig = ''
HandlePowerKey=suspend
'';

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@ -1,5 +1,6 @@
restic-ssh-key: ENC[AES256_GCM,data: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,iv:ow+hzt5YGGD0FDvN+XkZtW74k4mwW+6HqWZMtOwAWDg=,tag:HXogIkcSTq6Ep4M2MXEMew==,type:str]
wg-home-private-key: ENC[AES256_GCM,data:6l3CgB4qCsPuyYOWuwU2vNiEeC0D1wl6yZvXGGYVsZfYvdPjRz8j5yV7ekQ=,iv:slB/qr+cxi8r7cnTuZAd8CuzWVnvp24Li6A/AnZaFzo=,tag:ynh1Z2+IELAJcgBbHwFC0A==,type:str]
wg-mullvad-private-key: ENC[AES256_GCM,data:4smAYjzrMz6bapthHwTdeDJSvnEqnGmDFRZjJwnXWXLSYnEhzhvRttVrmFw=,iv:94o7E8IlZ6V+wez5+Zr9xv92rr06MlUfBCvtMW8VnEA=,tag:SJjrbBseVyWwhf9IHRi7rQ==,type:str]
wg-qbittorrent-private-key: ENC[AES256_GCM,data:9sjqTCMXqN0oWS95RQOmfLK0/2dH6V4Rs2LX8ydnYl+7zR55PG5pW3kROH8=,iv:m+4xKthKNCQBOEP9ExOHY5Dg3i+yTgREwrAci4zhqUk=,tag:L0vnwyiGOAoarr7FZFE91A==,type:str]
sops:
kms: []
@ -7,8 +8,8 @@ sops:
azure_kv: []
hc_vault: []
age: []
lastmodified: "2022-08-25T14:39:59Z"
mac: ENC[AES256_GCM,data:3Z1f1DobOU1RHT25TM0FI9fUUtZxrFhKeGTmXaxC+vDE2j9url28XVDesiMmj2Vairapk5krf31hV47K62Q+YvVyYrNw0a3hn+v7/2kBrbdU1SqZNajVwb7/3F5YKYNcsF/tHLClJrwYOIrSWBWsky7gim2ohItm6eKuG9ED+wg=,iv:zqMw8Q4c3EOI9AEUjx148/X2VTF1UMTdacgjxyYuiyk=,tag:H72VN77/SzHMBqys8ZONGw==,type:str]
lastmodified: "2023-04-01T22:52:16Z"
mac: ENC[AES256_GCM,data:mz8qIWirNUomuUPR9elZZK2mTfQhMqParnraw9gSQNDkhFPBCtkORys4tA9+q1stL1Edzuh6CPFzkywct64ZrKsApMdNMIqcXBc//uuF354T3B6+LmHvmMmxlQFz3hIo3Xo01sgAJinoZrIsktA0xIYV1SeBndzsmWPCtdBk/Go=,iv:hNNBxDwoppfC6kRi5kWYILdEBRjzhdeit6xRmxD+ACU=,tag:qli2XWAjf7LgbiA/nxyQGw==,type:str]
pgp:
- created_at: "2021-04-06T11:27:21Z"
enc: |

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@ -0,0 +1,215 @@
# Home network configuration
#
# +----------+ +---------------+
# | | | +-+-+---+ |
# | +|-|-|-|-|+ | |
# +---+----+ |5 4 3 2 1| | +--+--+
# |upstream| |TL-SG105 | | |fuuko|
# +--------+ +---------+ | +-----+
# |
# ( clients )
#
# It consists of fuuko as a router (this configuration),
# connected to a TP-LINK TL-SG105E “smart managed” (i.e., it can do VLANs) 5-port switch.
# The upstream comes from some plasic Huawei router/AP I dont control.
#
# The VLANs are configured as follows:
# Port | VLAN | ID(s)
# 5 | untagged | 2
# 4 | tagged | 2,3
# 1-3 | untagged | 3
#
# Wireless currently still is done by a separate GL.iNet GL-MT300N-V2 running OpenWRT,
# but this will be changed to a Intel Wireless-AC 9260 in fuuko at a later date.
{ config, lib, ... }:
let
domain = "home.sbruder.de";
in
{
sops.secrets.wg-mullvad-private-key = {
owner = config.users.users.systemd-network.name;
sopsFile = ../secrets.yaml;
};
boot.kernel.sysctl = {
"net.ipv4.conf.all.forwarding" = true;
};
networking = {
# networkd handles this
useDHCP = false;
# networkd didnt work that well for this
nat = {
enable = true;
enableIPv6 = true;
externalInterface = "wg-mullvad";
internalInterfaces = [ "lan" ];
internalIPv6s = [ "fd00:80:1::/64" ];
};
};
systemd.network = {
enable = true;
netdevs = {
wan = {
netdevConfig = {
Kind = "vlan";
Name = "wan";
};
vlanConfig = {
Id = 2;
};
};
lan = {
netdevConfig = {
Kind = "vlan";
Name = "lan";
};
vlanConfig = {
Id = 3;
};
};
wg-mullvad = {
netdevConfig = {
Kind = "wireguard";
Name = "wg-mullvad";
};
wireguardConfig = {
PrivateKeyFile = config.sops.secrets.wg-mullvad-private-key.path;
FirewallMark = 51820;
};
wireguardPeers = lib.singleton {
wireguardPeerConfig = {
Endpoint = "146.70.117.194:51820";
PublicKey = "ydXFN45/kROELJrF6id+uIrnS5DvTKSCkZDjfL9De2Q=";
AllowedIPs = [ "0.0.0.0/0" "::0/0" ];
PersistentKeepalive = 25;
};
};
};
};
networks = {
physical = {
name = "enp8s0";
vlan = [ "wan" "lan" ];
# no autoconfiguration needed, only tagged VLAN
networkConfig = {
LinkLocalAddressing = "no";
LLDP = "no";
EmitLLDP = "no";
IPv6AcceptRA = "no";
IPv6SendRA = "no";
};
};
wan = {
name = "wan";
matchConfig = {
Type = "vlan";
};
networkConfig = {
# Upstream provides no IPv6 :(
# If this is not set, it waits and fails systemd-networkd-wait-online
LinkLocalAddressing = "no";
IPv6AcceptRA = "no";
};
DHCP = "ipv4";
dhcpV4Config = {
UseDNS = "no";
};
};
lan = {
name = "lan";
matchConfig = {
Type = "vlan";
};
domains = [ domain ];
address = [ "10.80.1.1/24" "fd00:80:1::1/64" ];
};
wg-mullvad = {
name = "wg-mullvad";
address = [ "10.66.208.88/32" "fc00:bbbb:bbbb:bb01::3:d057/128" ];
dns = [ "10.64.0.1" ];
routingPolicyRules = [
{
routingPolicyRuleConfig = {
FirewallMark = 51820;
InvertRule = "yes";
Table = 51820;
Priority = 10;
#SuppressPrefixLength = 0; # cant be used here (forwarding does not work with it)
};
}
# FIXME: those two shouldnt be necessary
# It should automatically detect those routes existing and prioritise them
{
routingPolicyRuleConfig = {
To = "10.80.0.0/24";
Priority = 9;
};
}
{
routingPolicyRuleConfig = {
To = "10.80.1.0/24";
Priority = 9;
};
}
];
routes = [
{
routeConfig = {
Gateway = "0.0.0.0"; # point-to-point connection
Table = 51820;
};
}
{
routeConfig = {
Gateway = "::";
};
}
];
};
};
};
services.resolved.enable = false;
services.dnsmasq = {
enable = true;
extraConfig = ''
bogus-priv # do not forward revese lookups of internal addresses
domain-needed # do not forward names without domain
interface=lan # only respond to queries from lan
no-hosts # do not resolve hosts from /etc/hosts
no-resolv # only use explicitly configured resolvers
cache-size=10000
domain=${domain}
# Allow resolving the router
interface-name=${config.networking.hostName}.${domain},lan
interface-name=${config.networking.hostName},lan
# DHCPv4
dhcp-range=10.80.1.20,10.80.1.150,12h
dhcp-option=option:router,10.80.1.1
# SLAAC (for addresses) / DHCPv6 (for DNS)
dhcp-range=fd00:80:1::,ra-stateless,ra-names
dhcp-option=option6:dns-server,fd00:80:1::1
'';
servers = [
"10.64.0.1" # mullvad DNS, should be fastest overall
#"9.9.9.9" # dns.quad9.net
#"2620:fe::fe"
];
};
services.prometheus.exporters.dnsmasq = {
enable = true;
listenAddress = config.sbruder.wireguard.home.address;
leasesPath = "/var/lib/dnsmasq/dnsmasq.leases";
};
networking.firewall.allowedUDPPorts = [ 53 67 ];
networking.firewall.allowedTCPPorts = [ 53 ];
}

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@ -94,6 +94,14 @@ in
};
}
)
{
job_name = "dnsmasq";
static_configs = mkStaticTarget "fuuko.vpn.sbruder.de:${toString config.services.prometheus.exporters.dnsmasq.port}";
relabel_configs = lib.singleton {
target_label = "instance";
replacement = "fuuko.home.sbruder.de";
};
}
{
job_name = "hcloud";
static_configs = mkStaticTarget config.services.hcloud_exporter.listenAddress;