mirror of
https://github.com/oddlama/nix-config.git
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feat: finally forward ipv6 traffic
(i know ULA snat is not _the way_, but here we are anyway)
This commit is contained in:
oddlama
parent
3f3573a1e2
commit
9422389c9c
1 changed files with 157 additions and 111 deletions
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@ -6,6 +6,7 @@
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}:
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{
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boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
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boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = 1;
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networking.hostId = config.repo.secrets.local.networking.hostId;
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globals.monitoring.ping.ward = {
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@ -164,124 +165,169 @@
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}
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);
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networking.nftables.firewall = {
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zones =
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{
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untrusted.interfaces = [ "wan" ];
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proxy-home.interfaces = [ "proxy-home" ];
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firezone.interfaces = [ "tun-firezone" ];
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adguardhome.ipv4Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-adguardhome.ipv4 ];
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adguardhome.ipv6Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-adguardhome.ipv6 ];
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web-proxy.ipv4Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-web-proxy.ipv4 ];
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web-proxy.ipv6Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-web-proxy.ipv6 ];
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samba.ipv4Addresses = [ globals.net.home-lan.vlans.services.hosts.sire-samba.ipv4 ];
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samba.ipv6Addresses = [ globals.net.home-lan.vlans.services.hosts.sire-samba.ipv6 ];
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scanner-ads-4300n.ipv4Addresses = [
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globals.net.home-lan.vlans.devices.hosts.scanner-ads-4300n.ipv4
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];
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scanner-ads-4300n.ipv6Addresses = [
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globals.net.home-lan.vlans.devices.hosts.scanner-ads-4300n.ipv6
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];
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}
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// lib.flip lib.concatMapAttrs globals.net.home-lan.vlans (
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vlanName: _: {
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"vlan-${vlanName}".interfaces = [ "me-${vlanName}" ];
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networking.nftables = {
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firewall = {
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zones =
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{
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untrusted.interfaces = [ "wan" ];
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proxy-home.interfaces = [ "proxy-home" ];
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firezone.interfaces = [ "tun-firezone" ];
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adguardhome.ipv4Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-adguardhome.ipv4 ];
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adguardhome.ipv6Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-adguardhome.ipv6 ];
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web-proxy.ipv4Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-web-proxy.ipv4 ];
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web-proxy.ipv6Addresses = [ globals.net.home-lan.vlans.services.hosts.ward-web-proxy.ipv6 ];
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samba.ipv4Addresses = [ globals.net.home-lan.vlans.services.hosts.sire-samba.ipv4 ];
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samba.ipv6Addresses = [ globals.net.home-lan.vlans.services.hosts.sire-samba.ipv6 ];
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scanner-ads-4300n.ipv4Addresses = [
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globals.net.home-lan.vlans.devices.hosts.scanner-ads-4300n.ipv4
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];
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scanner-ads-4300n.ipv6Addresses = [
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globals.net.home-lan.vlans.devices.hosts.scanner-ads-4300n.ipv6
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];
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}
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);
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// lib.flip lib.concatMapAttrs globals.net.home-lan.vlans (
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vlanName: _: {
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"vlan-${vlanName}".interfaces = [ "me-${vlanName}" ];
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}
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);
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rules = {
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masquerade-internet = {
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from = [
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"vlan-services"
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"vlan-home"
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"vlan-devices"
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"vlan-guests"
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];
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to = [ "untrusted" ];
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masquerade = true;
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late = true; # Only accept after any rejects have been processed
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verdict = "accept";
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rules = {
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masquerade-internet = {
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from = [
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"vlan-services"
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"vlan-home"
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"vlan-devices"
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"vlan-guests"
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];
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to = [ "untrusted" ];
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# masquerade = true; NOTE: custom rule below for ip4 + ip6
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late = true; # Only accept after any rejects have been processed
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verdict = "accept";
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};
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# masquerade firezone traffic
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masquerade-firezone = {
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from = [ "firezone" ];
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to = [ "vlan-services" ];
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# masquerade = true; NOTE: custom rule below for ip4 + ip6
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late = true; # Only accept after any rejects have been processed
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verdict = "accept";
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};
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# Allow access to the AdGuardHome DNS server from any VLAN that has internet access
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access-adguardhome-dns = {
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from = [
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"vlan-services"
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"vlan-home"
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"vlan-devices"
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"vlan-guests"
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];
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to = [ "adguardhome" ];
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verdict = "accept";
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};
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# Allow access to the web proxy from the devices VLAN
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access-web-proxy = {
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from = [
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"vlan-devices"
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];
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to = [ "web-proxy" ];
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allowedTCPPorts = [
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80
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443
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];
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allowedUDPPorts = [ 443 ];
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verdict = "accept";
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};
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# Allow the scanner to access samba via SFTP
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access-samba-sftp = {
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from = [ "scanner-ads-4300n" ];
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to = [ "samba" ];
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allowedTCPPorts = [ 22 ];
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};
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# Allow devices in the home VLAN to talk to any of the services or home devices.
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access-services = {
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from = [ "vlan-home" ];
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to = [
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"vlan-services"
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"vlan-devices"
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"vlan-iot"
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];
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late = true;
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verdict = "accept";
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};
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# Allow the services VLAN to talk to our wireguard server
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services-to-local = {
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from = [ "vlan-services" ];
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to = [ "local" ];
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allowedUDPPorts = [ config.wireguard.proxy-home.server.port ];
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};
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# Forward traffic between wireguard participants
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forward-proxy-home-vpn-traffic = {
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from = [ "proxy-home" ];
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to = [ "proxy-home" ];
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verdict = "accept";
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};
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# forward firezone traffic
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forward-incoming-firezone-traffic = {
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from = [ "firezone" ];
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to = [ "vlan-services" ];
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verdict = "accept";
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};
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forward-outgoing-firezone-traffic = {
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from = [ "vlan-services" ];
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to = [ "firezone" ];
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verdict = "accept";
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};
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};
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};
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# Allow access to the AdGuardHome DNS server from any VLAN that has internet access
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access-adguardhome-dns = {
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from = [
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"vlan-services"
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"vlan-home"
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"vlan-devices"
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"vlan-guests"
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];
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to = [ "adguardhome" ];
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verdict = "accept";
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};
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# Allow access to the web proxy from the devices VLAN
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access-web-proxy = {
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from = [
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"vlan-devices"
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];
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to = [ "web-proxy" ];
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allowedTCPPorts = [
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80
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443
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];
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allowedUDPPorts = [ 443 ];
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verdict = "accept";
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};
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# Allow the scanner to access samba via SFTP
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access-samba-sftp = {
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from = [ "scanner-ads-4300n" ];
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to = [ "samba" ];
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allowedTCPPorts = [ 22 ];
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};
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# Allow devices in the home VLAN to talk to any of the services or home devices.
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access-services = {
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from = [ "vlan-home" ];
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to = [
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"vlan-services"
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"vlan-devices"
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"vlan-iot"
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];
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late = true;
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verdict = "accept";
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};
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# Allow the services VLAN to talk to our wireguard server
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services-to-local = {
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from = [ "vlan-services" ];
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to = [ "local" ];
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allowedUDPPorts = [ config.wireguard.proxy-home.server.port ];
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};
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# Forward traffic between wireguard participants
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forward-proxy-home-vpn-traffic = {
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from = [ "proxy-home" ];
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to = [ "proxy-home" ];
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verdict = "accept";
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};
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# masquerade firezone traffic
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chains.postrouting = {
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masquerade-firezone = {
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from = [ "firezone" ];
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to = [ "vlan-services" ];
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masquerade = true;
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late = true; # Only accept after any rejects have been processed
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verdict = "accept";
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after = [ "hook" ];
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late = true;
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rules =
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lib.forEach
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[
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"firezone"
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]
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(
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zone:
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lib.concatStringsSep " " [
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"meta protocol { ip, ip6 }"
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(lib.head config.networking.nftables.firewall.zones.${zone}.ingressExpression)
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(lib.head config.networking.nftables.firewall.zones.vlan-services.egressExpression)
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"masquerade random"
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]
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);
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};
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# forward firezone traffic
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forward-incoming-firezone-traffic = {
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from = [ "firezone" ];
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to = [ "vlan-services" ];
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verdict = "accept";
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};
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forward-outgoing-firezone-traffic = {
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from = [ "vlan-services" ];
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to = [ "firezone" ];
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verdict = "accept";
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masquerade-internet = {
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after = [ "hook" ];
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late = true;
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rules =
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lib.forEach
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[
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"vlan-services"
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"vlan-home"
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"vlan-devices"
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"vlan-guests"
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]
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(
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zone:
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lib.concatStringsSep " " [
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"meta protocol { ip, ip6 }"
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(lib.head config.networking.nftables.firewall.zones.${zone}.ingressExpression)
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(lib.head config.networking.nftables.firewall.zones.untrusted.egressExpression)
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"masquerade random"
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]
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);
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};
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};
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};
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