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1{ config, lib, pkgs, ... }:
2
3{
4 virtualisation.libvirtd.enable = true;
5 security.polkit.enable = true;
6
7 krebs.iptables.tables.filter.INPUT.rules = [
8 { v6 = false; predicate = "-i virbr0 -p udp -m udp --dport 53"; target = "ACCEPT"; }
9 { v6 = false; predicate = "-i virbr0 -p tcp -m tcp --dport 53"; target = "ACCEPT"; }
10 { v6 = false; predicate = "-i virbr0 -p udp -m udp --dport 67"; target = "ACCEPT"; }
11 { v6 = false; predicate = "-i virbr0 -p tcp -m tcp --dport 67"; target = "ACCEPT"; }
12 ];
13 krebs.iptables.tables.filter.FORWARD.rules = [
14 { v6 = false; predicate = "-d 192.168.122.0/24 -o virbr0 -m conntrack --ctstate RELATED,ESTABLISHED"; target = "ACCEPT"; }
15 { v6 = false; predicate = "-s 192.168.122.0/24 -i virbr0"; target = "ACCEPT"; }
16 { v6 = false; predicate = "-i virbr0 -o virbr0"; target = "ACCEPT"; }
17 { v6 = false; predicate = "-o virbr0"; target = "REJECT --reject-with icmp-port-unreachable"; }
18 { v6 = false; predicate = "-i virbr0"; target = "REJECT --reject-with icmp-port-unreachable"; }
19 ];
20 krebs.iptables.tables.filter.OUTPUT.rules = [
21 { v6 = false; predicate = "-o virbr0 -p udp -m udp --dport 68"; target = "ACCEPT"; }
22 ];
23 krebs.iptables.tables.nat.PREROUTING.rules = lib.mkBefore [
24 { v6 = false; predicate = "-s 192.168.122.0/24"; target = "ACCEPT"; }
25 ];
26 krebs.iptables.tables.nat.POSTROUTING.rules = [
27 { v6 = false; predicate = "-s 192.168.122.0/24 -d 224.0.0.0/24"; target = "RETURN"; }
28 { v6 = false; predicate = "-s 192.168.122.0/24 -d 255.255.255.255"; target = "RETURN"; }
29 { v6 = false; predicate = "-s 192.168.122.0/24 ! -d 192.168.122.0/24"; target = "MASQUERADE"; }
30 { v6 = false; predicate = "-s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp"; target = "MASQUERADE --to-ports 1024-65535"; }
31 { v6 = false; predicate = "-s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp"; target = "MASQUERADE --to-ports 1024-65535"; }
32 ];
33}