2016-10-19: rajesh-bird6 config

bird6.conf

router id 172.22.120.2;

table prauscher;
table ext_dn42;

log syslog all;

protocol device {
	scan time 10;
}

protocol kernel {
	scan time 20;
	import none;
	export filter { krt_prefsrc = fdc1:31f:b14f:200::1; accept; };
}

protocol pipe {
	peer table prauscher;
	import filter { if net ~ [ ::/0{0,2} ] then { reject; } accept; };
	export none;
}

protocol direct {
	table prauscher;
	import all;
	interface "dummy0", "tun.server", "tun.vod";
}

protocol static {
	table prauscher;
	import all;
	route fc00::/7 unreachable;
	route ::/0 blackhole;
}

protocol ospf {
	table prauscher;
	import all;
	export all;

	area 0.0.0.0 {
		interface "tun.sheldon" {
			hello 60;
			dead 80;
		};
		interface "tun.howard" {
			hello 60;
			dead 80;
		};
		interface "tun.amy" {
			hello 60;
			dead 80;
		};
		interface "tun.emily" {
			hello 60;
			dead 80;
		};
	};
}

include "/etc/bird/update.conf";

function is_ula() {
	return net ~ [ fc00::/7{48,64} ];
}

function is_freifunk() { 
	return net ~ [
		2001:0bf7::/32+,	# Foerderverein freie Netzwerke e.V.
		2001:67c:2d50::/48+,	# Freifunk Lübeck (via FF Rheinland)
		2a03:2260::/29+		# Freifunk Rheinland e.V.
	];
}

protocol pipe {
	peer table ext_dn42;
	import filter { if dest = RTD_UNREACHABLE then { reject; } accept; };
	export none;
}

protocol static {
	table ext_dn42;
	export all;
	route fdc1:31f:b14f::/48 reject;
}

template bgp dn42_peer {
	table ext_dn42;
	import none;
	export all;
	local as 64720;
}

#include "/etc/bird/bird6-dn42.d/*.conf";

update.conf

function is_valid_as(int asnum) {
	return asnum = bgp_path.first;
}

function is_neighbor() {
	if bgp_path.len > 1 then bgp_local_pref = 20;
	return true;
#	return bgp_path.len <= 1;
}

function update_latency(int link_latency) {
	bgp_community.add((64511, link_latency));
	     if (64511, 9) ~ bgp_community then bgp_community.delete([(64511, 1..8)]);
	else if (64511, 8) ~ bgp_community then bgp_community.delete([(64511, 1..7)]);
	else if (64511, 7) ~ bgp_community then bgp_community.delete([(64511, 1..6)]);
	else if (64511, 6) ~ bgp_community then bgp_community.delete([(64511, 1..5)]);
	else if (64511, 5) ~ bgp_community then bgp_community.delete([(64511, 1..4)]);
	else if (64511, 4) ~ bgp_community then bgp_community.delete([(64511, 1..3)]);
	else if (64511, 3) ~ bgp_community then bgp_community.delete([(64511, 1..2)]);
	else if (64511, 2) ~ bgp_community then bgp_community.delete([(64511, 1..1)]);
}

function update_bandwidth(int link_bandwidth) {
	bgp_community.add((64511, link_bandwidth));
	     if (64511, 21) ~ bgp_community then bgp_community.delete([(64511, 22..29)]);
	else if (64511, 22) ~ bgp_community then bgp_community.delete([(64511, 23..29)]);
	else if (64511, 23) ~ bgp_community then bgp_community.delete([(64511, 24..29)]);
	else if (64511, 24) ~ bgp_community then bgp_community.delete([(64511, 25..29)]);
	else if (64511, 25) ~ bgp_community then bgp_community.delete([(64511, 26..29)]);
	else if (64511, 26) ~ bgp_community then bgp_community.delete([(64511, 27..29)]);
	else if (64511, 27) ~ bgp_community then bgp_community.delete([(64511, 28..29)]);
	else if (64511, 28) ~ bgp_community then bgp_community.delete([(64511, 29..29)]);
}

function update_crypto(int link_crypto) {
	bgp_community.add((64511, link_crypto));
	     if (64511, 31) ~ bgp_community then bgp_community.delete([(64511, 32..34)]);
	else if (64511, 32) ~ bgp_community then bgp_community.delete([(64511, 33..34)]);
	else if (64511, 33) ~ bgp_community then bgp_community.delete([(64511, 34..34)]);
}

function update_flags(int link_latency; int link_bandwidth; int link_crypto) {
	update_latency(link_latency);
	update_bandwidth(link_bandwidth);
	update_crypto(link_crypto);
	return true;
}