171 lines
3.6 KiB
Plaintext
171 lines
3.6 KiB
Plaintext
table ibgp; # internal BGP peerings
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table ebgp; # external (icvpn) BGP peerings
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table freifunk; # kernel table 42 for routing from ff network
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define ownas = 65112;
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router id <%= @own_ipv4 %>;
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### functions ###
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# own network
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function is_self_net() {
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return (net ~ [10.112.0.0/16+]);
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}
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# freifunk ip ranges in general
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function is_freifunk() {
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return net ~ [ 10.0.0.0/8+,
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104.0.0.0/8+
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];
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}
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# dn42 ip ranges
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function is_dn42() {
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return net ~ [ 172.22.0.0/15+,
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195.160.168.0/23+,
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91.204.4.0/22+,
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193.43.220.0/23+,
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83.133.178.0/23+,
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87.106.29.254/32,
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85.25.246.16/28+,
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46.4.248.192/27+,
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94.45.224.0/19+,
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195.191.196.0/23+,
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80.244.241.224/27+,
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46.19.90.48/28+,
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46.19.90.96/28+,
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178.63.170.40/32,
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188.40.34.241/32,
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195.16.84.40/29+,
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37.1.89.160/29+,
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178.33.32.123/32+,
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37.1.89.160/29+,
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185.28.77.16/29+,
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185.28.77.192/27+,
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192.175.48.0/24+
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];
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}
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### kernel ###
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# synchronize from bird to main kernel routing table
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# nothing in the other direction
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protocol kernel k_mast {
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scan time 10;
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import none;
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export filter {
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krt_prefsrc = <%= @own_ipv4 %>;
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accept;
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};
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};
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# synchronize from birds freifunk table to kernel routing table 42
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# nothing in the other direction
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protocol kernel k_frei {
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scan time 10;
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table freifunk;
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kernel table 42;
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import none;
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export filter {
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krt_prefsrc = <%= @own_ipv4 %>;
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accept;
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};
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};
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# this pseudo-protocol watches all interface up/down events
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protocol device {
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scan time 10;
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};
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### pipes ###
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# sync nothing from main routing table to ebgp
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# sync routes (not own network) from ebgp to main routing table
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protocol pipe p_maintbl {
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peer table ebgp;
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import where !is_self_net();
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export none;
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};
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# sync routes (not own network) from ebgp to ibgp
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# sync routes (all) from ibgp to ebgp
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protocol pipe p_ibgptbl {
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table ebgp;
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peer table ibgp;
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import all;
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export where !is_self_net();
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};
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# sync routes (freifunk and dn42) from ibgp to freifunk
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# sync nothing from freifunk to ibgp
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protocol pipe p_freitbl {
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table ibgp;
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peer table freifunk;
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import none;
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export where (is_freifunk() || is_dn42());
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};
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### static routes ###
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# if no openvpn is running, reject everything we do not have a route for
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protocol static unreachable_default {
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route 0.0.0.0/0 reject;
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table freifunk;
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};
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protocol static static_ffhh {
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route 10.112.0.0/16 reject;
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table ebgp;
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};
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# in hamburg we use a /18 from our /16 in the mesh
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# create a route for that in freifunk table
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protocol static local_ffhh {
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route 10.112.0.0/18 via "br-ffhh";
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table freifunk;
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};
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### templates ###
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# template for same city freifunk gateways
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template bgp locals {
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table ibgp;
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local as ownas;
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import filter {
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preference = 99;
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accept;
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};
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export where source = RTS_BGP;
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direct;
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next hop self;
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};
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# template for icvpn gateways of other cities
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template bgp peers {
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table ebgp;
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local as ownas;
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# ignore routes for our own network
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import where ((is_freifunk() || is_dn42()) && !is_self_net());
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export where (is_freifunk() || is_dn42());
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route limit 10000;
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};
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### local gateways ###
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<% @peerings_v4.each_pair do |key, hash| -%><% if hash["ip"] != @own_ipv4 -%>
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protocol bgp <%= key %> from <%= hash["template"] %> {
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neighbor <%= hash["ip"] %> as <%= hash["as"] %>;
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};
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<% end -%><% end -%>
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### icvpn peerings ###
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<% if @gw_do_ic_peering -%>
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<% @ic_peerings_v4.each_pair do |key, hash| -%><% if hash["ip"] != @own_ipv4 -%>
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protocol bgp <%= key %> from <%= hash["template"] %> {
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neighbor <%= hash["ip"] %> as <%= hash["as"] %>;
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};
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<% end -%><% end -%>
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<% end -%>
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