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New bird config version as template

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This commit is contained in:
ohrensessel 2014-04-26 14:21:42 +02:00
parent 22b5b16db4
commit 7cbf9a331a
1 changed files with 123 additions and 104 deletions
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199
templates/etc/bird.conf.erb
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@ -1,147 +1,166 @@
table ibgp; # internal BGP peerings
table ebgp; # external (icvpn) BGP peerings
table freifunk; # kernel table 42 for routing from ff network
define ownas = 65112;
router id <%= @own_ipv4 %>;
table ffhh; # BGP Peerings
table ibgp;
table icvpn; # BGP Peerings (ICVPN)
table freifunk; # Kernel table 42 (Routing from Freifunk networks)
function is_freifunk_dn42() {
return (net ~ [
10.0.0.0/8{12,32},
10.100.0.0/14,
172.22.0.0/15+,
172.31.0.0/16
]);
}
function is_freifunk() {
return (net ~ [10.0.0.0/8+]);
}
function is_chaosvpn() {
return (net ~ [172.31.0.0/16+]);
}
### functions ###
# own network
function is_self_net() {
return (net ~ [10.112.0.0/16+]);
}
function is_self() {
return (proto = "static_ffhh");
# freifunk ip ranges in general
function is_freifunk() {
return net ~ [ 10.0.0.0/8+,
104.0.0.0/8+
];
}
function is_dn42_aggregate() {
return (net ~ [172.22.0.0/15{16,32}]);
# dn42 ip ranges
function is_dn42() {
return net ~ [ 172.22.0.0/15+,
195.160.168.0/23+,
91.204.4.0/22+,
193.43.220.0/23+,
83.133.178.0/23+,
87.106.29.254/32,
85.25.246.16/28+,
46.4.248.192/27+,
94.45.224.0/19+,
195.191.196.0/23+,
80.244.241.224/27+,
46.19.90.48/28+,
46.19.90.96/28+,
178.63.170.40/32,
188.40.34.241/32,
195.16.84.40/29+,
37.1.89.160/29+,
178.33.32.123/32+,
37.1.89.160/29+,
185.28.77.16/29+,
185.28.77.192/27+,
192.175.48.0/24+
];
}
filter ffhh_internal_export {
if (proto = "dn42_aggregate_ffhh" || proto = "local_ffhh") then accept;
if (source != RTS_BGP && proto != "pipe_icvpn") then reject;
if (proto ~ "bgp_ibgp_*") then reject;
if (is_dn42_aggregate()) then reject;
### kernel ###
# synchronize from bird to main kernel routing table
# nothing in the other direction
protocol kernel k_mast {
scan time 10;
import none;
export filter {
krt_prefsrc = <%= @own_ipv4 %>;
accept;
}
};
};
# synchronize from birds freifunk table to kernel routing table 42
# nothing in the other direction
protocol kernel k_frei {
scan time 10;
table freifunk;
kernel table 42;
import none;
export filter {
krt_prefsrc = <%= @own_ipv4 %>;
accept;
};
};
protocol pipe pipe_ffhh {
peer table ffhh;
import all;
# this pseudo-protocol watches all interface up/down events
protocol device {
scan time 10;
};
### pipes ###
# sync nothing from main routing table to ebgp
# sync routes (not own network) from ebgp to main routing table
protocol pipe p_maintbl {
peer table ebgp;
import where !is_self_net();
export none;
};
protocol pipe pipe_icvpn {
table ffhh;
peer table icvpn;
export where is_self();
import all;
mode opaque;
};
protocol pipe pipe_freifunk {
peer table freifunk;
import none;
export all;
};
protocol pipe pipe_ibgp {
# sync routes (not own network) from ebgp to ibgp
# sync routes (all) from ibgp to ebgp
protocol pipe p_ibgptbl {
table ebgp;
peer table ibgp;
import all;
export where !is_self_net();
mode opaque;
};
protocol kernel kernel_master {
scan time 20;
# sync routes (freifunk and dn42) from ibgp to freifunk
# sync nothing from freifunk to ibgp
protocol pipe p_freitbl {
table ibgp;
peer table freifunk;
import none;
export filter {
krt_prefsrc = <%= @own_ipv4 %>;
accept;
};
export where (is_freifunk() || is_dn42());
};
protocol kernel kernel_freifunk {
scan time 20;
import none;
export filter {
krt_prefsrc = <%= @own_ipv4 %>;
accept;
};
table freifunk;
device routes;
kernel table 42;
};
# This pseudo-protocol watches all interface up/down events.
protocol device {
scan time 10; # Scan interfaces every 10 seconds
};
### static routes ###
# if no openvpn is running, reject everything we do not have a route for
protocol static unreachable_default {
table freifunk;
route 0.0.0.0/0 reject;
table freifunk;
};
protocol static static_ffhh {
table ffhh;
route 10.112.0.0/16 reject;
table ebgp;
};
# in hamburg we use a /18 from our /16 in the mesh
# create a route for that in freifunk table
protocol static local_ffhh {
table ffhh;
route 10.112.0.0/18 via "freifunk";
route 10.112.0.0/18 via "br-ffhh";
table freifunk;
};
protocol static dn42_aggregate_ffhh {
table ffhh;
route 172.22.0.0/15 reject;
};
### templates ###
template bgp bgp_ibgp {
local as 65112;
# template for same city freifunk gateways
template bgp locals {
table ibgp;
local as ownas;
import filter {
preference = 99;
accept;
};
export all;
gateway direct;
export where source = RTS_BGP;
direct;
next hop self;
};
template bgp bgp_icvpn {
local as 65112;
table icvpn;
import where (is_freifunk_dn42() && !is_self_net());
export all;
# template for icvpn gateways of other cities
template bgp peers {
table ebgp;
local as ownas;
# ignore routes for our own network
import where ((is_freifunk() || is_dn42()) && !is_self_net());
export where (is_freifunk() || is_dn42());
route limit 10000;
};
### local gateways ###
<% @peerings_v4.each_pair do |key, hash| -%><% if hash["ip"] != @own_ipv4 -%>
protocol bgp <%= key %> from <%= hash["template"] %> {
neighbor <%= hash["ip"] %> as <%= hash["as"] %>;
};
<% end -%><% end -%>
### icvpn peerings ###
<% if @gw_do_ic_peering -%>
<% @ic_peerings_v4.each_pair do |key, hash| -%><% if hash["ip"] != @own_ipv4 -%>
protocol bgp <%= key %> from <%= hash["template"] %> {