Filters giving odd errors

Maria Matějka maria.matejka at nic.cz
Thu Aug 13 17:41:36 CEST 2020


Hello!
The error message tells you that you are passing something strange to the condition on line 360. What do you have on line 360?
Maria

On August 13, 2020 4:46:12 PM GMT+02:00, "Skyler Mäntysaari" <sm at samip.fi> wrote:
>Hi there,
>
>I'm using the template from 
>https://github.com/neptune-networks/peering/blob/master/out/router.fqdn.example/bird.conf
>
>for my filters, and I'm getting argument related errors in logs.
>
>What's the issue with those filters?
>
>P.S I need to find a guide on how to do bird2 and RPKI as well.
>
>Logs:
>----------------------------------------------------
>2020-08-13 17:37:47 <ERR> filters, line 360: Argument 1 of instruction 
>FI_CONDITION must be of type T_BOOL, got 0x00
>2020-08-13 17:37:47 <ERR> filters, line 360: Argument 1 of instruction 
>FI_CONDITION must be of type T_BOOL, got 0x00
>2020-08-13 17:37:47 <ERR> filters, line 360: Argument 1 of instruction 
>FI_CONDITION must be of type T_BOOL, got 0x00
>2020-08-13 17:37:47 <ERR> filters, line 360: Argument 1 of instruction 
>FI_CONDITION must be of type T_BOOL, got 0x00
>2020-08-13 17:37:47 <ERR> filters, line 360: Argument 1 of instruction 
>FI_CONDITION must be of type T_BOOL, got 0x00
>2020-08-13 17:37:47 <ERR> ...
>----------------------------------------------------
>
>
>Bird config, the filter functions:
>----------------------------------------------------
># --- Filters (technically functions) ---
>function default_import() {
>   if bgp_path.len > 32 then
>    reject "AS_PATH len [", bgp_path.len ,"] longer than 32 - REJECTING
>
>", net;
>
>   if prefix_is_in_global_blacklist() then
>     reject "prefix is in global blacklist - REJECTING ", net;
>
>   if is_own_prefix() then
>     reject "prefix is our own - REJECTING ", net;
>
>   if is_own_internal_prefix() then {
>     if !prefix_is_in_global_whitelist() then
>       reject "prefix is our own and internal - REJECTING ", net;
>   }
>
>   if prefix_is_bogon() then
>     reject "prefix is bogon - REJECTING ", net;
>
>   if net.type = NET_IP4 then
>     if !is_prefix_length_valid(8, 24) then
>      reject "prefix len [", net.len, "] not in 8-24 - REJECTING ",
>net;
>
>   if net.type = NET_IP6 then
>     if !is_prefix_length_valid(12, 56) then
>      reject "prefix len [", net.len, "] not in 12-56 - REJECTING ",
>net;
>
>   #perform_rpki_validation();
>
>   if route_is_rpki_invalid() then
>     reject "RPKI, route is INVALID - REJECTING ", net;
>
>   add_region_community();
>   add_site_community();
>   honor_graceful_shutdown();
>
>   accept;
>}
>
>function peer_import() {
>   scrub_communities_in();
>   add_peer_community();
>   default_import();
>}
>
>function peer_export() {
>   strip_private_asns();
>   add_global_prepends();
>
>   if is_own_prefix() then accept;
>
>   if route_is_rpki_invalid() then
>     reject "RPKI, route is INVALID - NOT ANNOUNCING ", net;
>
>   if is_own_internal_prefix() then {
>     if !prefix_is_in_global_whitelist() then
>       reject "prefix is our own and internal - NOT ANNOUNCING ", net;
>   }
>
>   if net.type = NET_IP4 then
>     if !is_prefix_length_valid(8, 24) then
>      reject "prefix len [", net.len, "] not in 8-24 - REJECTING ",
>net;
>
>   if net.type = NET_IP6 then
>     if !is_prefix_length_valid(12, 48) then
>      reject "prefix len [", net.len, "] not in 12-48 - REJECTING ",
>net;
>
>   if prefix_is_bogon() then
>     reject "prefix is bogon - NOT ANNOUNCING ", net;
>
>   if as_path_contains_invalid_asn() then
>     reject "AS_PATH [", bgp_path ,"] contains invalid ASN - REJECTING 
>", net;
>
>   if should_not_export_to_site() then
>    reject "NO_EXPORT community in place for site - NOT ANNOUNCING ",
>net;
>
>   if should_not_export_to_region() then
>    reject "NO_EXPORT community in place for region - NOT ANNOUNCING ",
>
>net;
>
>   if should_not_export_to_peers() then
>    reject "NO_EXPORT community in place for peers - NOT ANNOUNCING ",
>net;
>
>   if prefix_is_in_global_blacklist() then
>     reject "prefix is in global blacklist - REJECTING ", net;
>
>   if was_learned_from_customer() then accept;
>
>   reject;
>}
>
>function upstream_import() {
>   scrub_communities_in();
>   add_upstream_community();
>   default_import();
>}
>
>function upstream_export() {
>   strip_private_asns();
>   add_global_prepends();
>
>   if is_own_prefix() then accept;
>
>   if route_is_rpki_invalid() then
>     reject "RPKI, route is INVALID - NOT ANNOUNCING ", net;
>
>   if is_own_internal_prefix() then {
>     if !prefix_is_in_global_whitelist() then
>       reject "prefix is our own and internal - NOT ANNOUNCING ", net;
>   }
>
>   if net.type = NET_IP4 then
>     if !is_prefix_length_valid(8, 24) then
>      reject "prefix len [", net.len, "] not in 8-24 - REJECTING ",
>net;
>
>   if net.type = NET_IP6 then
>     if !is_prefix_length_valid(12, 48) then
>      reject "prefix len [", net.len, "] not in 12-48 - REJECTING ",
>net;
>
>   if prefix_is_bogon() then
>     reject "prefix is bogon - NOT ANNOUNCING ", net;
>
>   if as_path_contains_invalid_asn() then
>     reject "AS_PATH [", bgp_path ,"] contains invalid ASN - REJECTING 
>", net;
>
>   if should_not_export_to_site() then
>    reject "NO_EXPORT community in place for site - NOT ANNOUNCING ",
>net;
>
>   if should_not_export_to_region() then
>    reject "NO_EXPORT community in place for region - NOT ANNOUNCING ",
>
>net;
>
>   if should_not_export_to_upstreams() then
>    reject "NO_EXPORT community in place for upstreams - NOT ANNOUNCING
>
>", net;
>
>   if prefix_is_in_global_blacklist() then
>     reject "prefix is in global blacklist - REJECTING ", net;
>
>   if was_learned_from_customer() then accept;
>
>   reject;
>}
>
>function customer_import() {
>   scrub_communities_in();
>   add_customer_community();
>   default_import();
>}
>
>function customer_export() {
>   strip_private_asns();
>   add_global_prepends();
>
>   if is_own_prefix() then accept;
>
>   if route_is_rpki_invalid() then
>     reject "RPKI, route is INVALID - NOT ANNOUNCING ", net;
>
>   if is_own_internal_prefix() then {
>     if !prefix_is_in_global_whitelist() then
>       reject "prefix is our own and internal - NOT ANNOUNCING ", net;
>   }
>
>   if net.type = NET_IP4 then
>     if !is_prefix_length_valid(8, 24) then
>      reject "prefix len [", net.len, "] not in 8-24 - REJECTING ",
>net;
>
>   if net.type = NET_IP6 then
>     if !is_prefix_length_valid(12, 48) then
>      reject "prefix len [", net.len, "] not in 12-48 - REJECTING ",
>net;
>
>   if prefix_is_bogon() then
>     reject "prefix is bogon - NOT ANNOUNCING ", net;
>
>   if as_path_contains_invalid_asn() then
>     reject "AS_PATH [", bgp_path ,"] contains invalid ASN - REJECTING 
>", net;
>
>   if should_not_export_to_site() then
>    reject "NO_EXPORT community in place for site - NOT ANNOUNCING ",
>net;
>
>   if should_not_export_to_region() then
>    reject "NO_EXPORT community in place for region - NOT ANNOUNCING ",
>
>net;
>
>   if should_not_export_to_customers() then
>    reject "NO_EXPORT community in place for customers - NOT ANNOUNCING
>
>", net;
>
>   if prefix_is_in_global_blacklist() then
>     reject "prefix is in global blacklist - REJECTING ", net;
>
>   if was_learned_from_peer() then accept;
>   if was_learned_from_private_peer() then accept;
>   if was_learned_from_upstream() then accept;
>   if was_learned_from_customer() then accept;
>
>   reject;
>}
>
>function core_import() {
>   if prefix_is_bogon() then reject;
>
>   if prefix_is_in_global_blacklist() then
>     reject "prefix is in global blacklist - REJECTING ", net;
>
>   honor_graceful_shutdown();
>   accept;
>}
>
>function core_export() {
>   if prefix_is_bogon() then reject;
>
>   if prefix_is_in_global_blacklist() then
>     reject "prefix is in global blacklist - REJECTING ", net;
>
>   if is_own_prefix() then accept;
>   if is_own_internal_prefix() then accept;
>   if was_learned_from_peer() then accept;
>   if was_learned_from_private_peer() then accept;
>   if was_learned_from_upstream() then accept;
>   if was_learned_from_customer() then accept;
>
>   reject;
>}
>----------------------------------------------------
>
>
>
>-- 
>This email has been checked for viruses by Avast antivirus software.
>https://www.avast.com/antivirus

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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