dadada/nix-config
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remove service VLAN and route to backup1 using wireguard

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This commit is contained in:
Tim Schubert 2024-03-04 22:10:18 +01:00
parent 72f8cf91bc
commit b7d12303a3
Signed by: dadada
SSH key fingerprint: SHA256:bFAjFH3hR8zRBaJjzQDjc3o4jqoq5EZ87l+KXEjxIz0
7 changed files with 30 additions and 76 deletions
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1
nixos/agares/dns.nix
View file

@ -43,6 +43,7 @@
"\"ninurta.bs.dadada.li. 10800 IN A 192.168.101.184\""
"\"agares.bs.dadada.li. 10800 IN AAAA fd42:9c3b:f96d:101::1\""
"\"ninurta.bs.dadada.li. 10800 IN AAAA fd42:9c3b:f96d:101:4a21:bff:fe3e:9cfe\""
"\"backup1.dadada.li. 10800 IN AAAA fd42:9c3b:f96d:101:4a21:bff:fe3e:9cfe\""
];
local-zone = [
"\"168.192.in-addr.arpa.\" nodefault"

13
nixos/agares/network.nix
View file

@ -40,15 +40,6 @@ in
Id = 11;
};
};
"20-srv" = {
netdevConfig = {
Kind = "vlan";
Name = "srv.13";
};
vlanConfig = {
Id = 13;
};
};
"20-roadw" = {
netdevConfig = {
Kind = "wireguard";
@ -124,7 +115,7 @@ in
in
{
"10-mgmt" = subnet "enp1s0" "100" // {
networkConfig.VLAN = [ "lan.10" "ff.11" "srv.13" ];
networkConfig.VLAN = [ "lan.10" "ff.11" ];
dhcpServerStaticLeases = [
{
# legion
@ -163,8 +154,6 @@ in
"30-ff" = subnet "ff.11" "102";
"30-srv" = subnet "srv.13" "103";
"30-ifb4ppp0" = {
name = "ifb4ppp0";
extraConfig = ''

28
nixos/agares/rules.nft
View file

@ -4,7 +4,6 @@ define IF_MGMT = "enp1s0"
define IF_FF = "ff.11"
define IF_LAN = "lan.10"
define IF_WAN = "ppp0"
define IF_SRV = "srv.13"
# Modem uses this for internet uplink via our WAN
define IF_MODEM = "enp2s0"
@ -51,10 +50,6 @@ table inet filter {
counter accept comment "Accept all traffic from MGMT"
}
chain input_srv {
counter accept comment "Accept all traffic from services"
}
chain input_roadw {
counter accept comment "Accept all traffic from roadwarriors"
}
@ -69,23 +64,13 @@ table inet filter {
udp dport { 53, 67 } accept comment "Allow DNS and DHCP from Freifunk"
}
chain input_srv {
jump input_icmp_untrusted
# DHCP
meta nfproto ipv6 udp dport 547 accept comment "Allow DHCPv6 client"
# Allow DNS and DHCP from SRV
udp dport { 53, 67 } accept comment "Allow DNS and DHCP from services"
}
chain input {
type filter hook input priority filter; policy drop;
ct state {established, related} counter accept comment "Accept packets from established and related connections"
ct state invalid counter drop comment "Early drop of invalid packets"
iifname vmap { lo : accept, $IF_WAN : jump input_wan, $IF_LAN : jump input_lan, $IF_FF : jump input_ff, $IF_ROADW : jump input_roadw, $IF_MODEM : jump input_modem, $IF_MGMT : jump input_mgmt, $IF_SRV : jump input_srv }
iifname vmap { lo : accept, $IF_WAN : jump input_wan, $IF_LAN : jump input_lan, $IF_FF : jump input_ff, $IF_ROADW : jump input_roadw, $IF_MODEM : jump input_modem, $IF_MGMT : jump input_mgmt }
}
# Only works if hardware flow offloading is available
@ -117,13 +102,10 @@ table inet filter {
iifname { $IF_LAN, $IF_ROADW } counter accept comment "Allow all traffic forwarding from LAN and roadwarrior to all interfaces, except to mgmt"
# FF -> WAN
iifname { $IF_FF, $IF_SRV } oifname $IF_WAN counter accept comment "Allow all traffic forwarding from Freifunk and services to WAN"
iifname { $IF_FF } oifname $IF_WAN counter accept comment "Allow all traffic forwarding from Freifunk and services to WAN"
# { WAN, SRV } -> { FF, LAN, RW, SRV }
iifname { $IF_WAN, $IF_SRV } oifname { $IF_FF, $IF_LAN, $IF_ROADW, $IF_SRV } ct state established,related counter accept comment "Allow established back from WAN and SRV"
# WAN -> SRV
iifname $IF_WAN oifname $IF_SRV tcp dport ssh accept comment "Allow all SSH traffic forwarding from WAN to services"
# { WAN } -> { FF, LAN, RW }
iifname { $IF_WAN } oifname { $IF_FF, $IF_LAN, $IF_ROADW } ct state established,related counter accept comment "Allow established back from WAN"
}
chain output {
@ -145,6 +127,6 @@ table ip nat {
table arp filter {
chain input {
type filter hook input priority filter; policy drop;
iifname { $IF_MGMT, $IF_LAN, $IF_FF, $IF_SRV, $IF_MODEM } limit rate 1/second burst 2 packets accept comment "Limit number of ARP messages from LAN, FF, MGMT, SRV, modem"
iifname { $IF_MGMT, $IF_LAN, $IF_FF, $IF_MODEM } limit rate 1/second burst 2 packets accept comment "Limit number of ARP messages from LAN, FF, MGMT, modem"
}
}