108 lines
2.2 KiB
Text
108 lines
2.2 KiB
Text
################################################
|
|
# Variable header #
|
|
################################################
|
|
|
|
define ROUTERID = 1;
|
|
define OWNAS = 4242420129;
|
|
define OWNIPv6 = fdfe:8d0:7450:100::;
|
|
define OWNNETv6 = fdfe:8d0:7450::/48;
|
|
define OWNNETSETv6 = [fdfe:8d0:7450::/48+];
|
|
|
|
################################################
|
|
# Header end #
|
|
################################################
|
|
|
|
router id ROUTERID;
|
|
|
|
protocol device {
|
|
scan time 10;
|
|
}
|
|
|
|
/*
|
|
* Utility functions
|
|
*/
|
|
|
|
|
|
function is_self_net_v6() {
|
|
return net ~ OWNNETSETv6;
|
|
}
|
|
|
|
roa6 table dn42_roa_v6;
|
|
|
|
protocol static {
|
|
roa6 { table dn42_roa_v6; };
|
|
include "/etc/bird/roa_dn42_v6.conf";
|
|
}
|
|
|
|
function is_valid_network_v6() {
|
|
return net ~ [
|
|
fd00::/8{44,64} # ULA address space as per RFC 4193
|
|
];
|
|
}
|
|
|
|
protocol kernel {
|
|
scan time 20;
|
|
|
|
ipv6 {
|
|
import none;
|
|
export filter {
|
|
if source = RTS_STATIC then reject;
|
|
krt_prefsrc = OWNIPv6;
|
|
accept;
|
|
};
|
|
};
|
|
}
|
|
|
|
protocol static {
|
|
route OWNNETv6 reject;
|
|
|
|
ipv6 {
|
|
import all;
|
|
export none;
|
|
};
|
|
}
|
|
|
|
function import_filter() {
|
|
if !is_valid_network_v6() then {
|
|
print "[dn42] Rejected invalid route ", net, " ASN ", bgp_path.last;
|
|
reject;
|
|
}
|
|
|
|
if is_self_net_v6() then {
|
|
print "[dn42] Rejected internal route ", net, " ASN ", bgp_path.last;
|
|
reject;
|
|
}
|
|
|
|
if (roa_check(dn42_roa_v6, net, bgp_path.last) != ROA_VALID) then {
|
|
print "[dn42] ROA check failed for ", net, " ASN ", bgp_path.last;
|
|
reject;
|
|
}
|
|
|
|
if (bgp_path.len > 20) then {
|
|
print "[dn42] Rejected long route ", net, " ASN ", bgp_path.last;
|
|
reject;
|
|
}
|
|
|
|
accept;
|
|
}
|
|
|
|
function export_filter() {
|
|
if is_valid_network_v6() && source ~ [RTS_STATIC, RTS_BGP] then accept; else reject;
|
|
}
|
|
|
|
template bgp dnpeers {
|
|
local as OWNAS;
|
|
path metric 1;
|
|
graceful restart on;
|
|
|
|
ipv6 {
|
|
import where import_filter();
|
|
export where export_filter();
|
|
import limit 9000 action block;
|
|
};
|
|
}
|
|
|
|
|
|
include "/etc/bird/community_filters.conf";
|
|
include "/etc/bird/babel.conf";
|
|
include "/etc/bird/peers/*";
|