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Update bird/bird.conf.tmpl

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This commit is contained in:
sump pump 2020-05-21 01:04:35 +00:00
parent abccbb60a7
commit 1b5e4d846d
1 changed files with 8 additions and 13 deletions

21
bird/bird.conf.tmpl

@ -58,6 +58,7 @@ protocol kernel { # Primary routing table
persist; # Don't remove routes on bird shutdown
scan time 10; # Scan kernel routing table every 10 seconds
ipv4 {
table lixonet;
import none; # Don't try to import any routes from the kernel
export all; # Export everything we are told to the kernel
};
@ -72,7 +73,7 @@ protocol kernel { # Primary routing table
# Returns TRUE if the given tested network is within the global network prefix for
# Lixonet. Used to filter networks outside of this range as they are not within
# the global mesh network.
function net_lixonet_global()
function is_lixonet_global()
{
return net ~ [ ${network_address}/${global_prefix:-16}+ ];
}
@ -80,22 +81,16 @@ function net_lixonet_global()
# Returns TRUE if the given tested network is within the router network prefix for
# Lixonet. Used to filter these routes from BGP as Tinc statically assigns them
# for us. Helps prevent a security vulnerability of hijacking another router.
function net_lixonet_router()
function is_lixonet_router()
{
return net ~ [ ${network_address}/${router_prefix:-24}+ ];
}
filter lixonet_import
filter lixonet_route_filter
{
# TODO: check RPKI here!
if net_lixonet_router() then reject; # Reject poisons
if net_lixonet_global() then accept; # Accept anything else
reject; # Reject anything else (non-Lixonet)
}
filter lixonet_export
{
if net_lixonet_global() then accept; # Accept anything in LXN
if is_lixonet_router() then reject; # Reject poisons
if is_lixonet_global() then accept; # Accept anything else
reject; # Reject anything else (non-Lixonet)
}
@ -136,8 +131,8 @@ template bgp lixonet_client {
# Set filters for both exported (sent) and imported (received) BGP prefixes.
# This is explicitly required per RFC 8212, at least on export.
# See: https://gitlab.labs.nic.cz/labs/bird/commit/3831b619661d08d935fd78656732cd2f339ff811
export filter lixonet_export;
import filter lixonet_import;
export filter lixonet_route_filter;
import filter lixonet_route_filter;
};
};