{### MACRO definition for recurring peer patter, this can be either fed by a ###}
{### peer-group or an individual BGP neighbor ###}
{% macro bgp_neighbor(neighbor, config, peer_group=false) %}
{%   if peer_group == true %}
 neighbor {{ neighbor }} peer-group
{%   elif config.peer_group is defined and config.peer_group is not none %}
 neighbor {{ neighbor }} peer-group {{ config.peer_group }}
{%   endif %}
{%   if config.remote_as is defined and config.remote_as is not none %}
 neighbor {{ neighbor }} remote-as {{ config.remote_as }}
{%   endif %}
{%   if config.bfd is defined %}
 neighbor {{ neighbor }} bfd
{%   endif %}
{%   if config.capability is defined and config.capability is not none %}
{%     if config.capability.dynamic is defined %}
 neighbor {{ neighbor }} capability dynamic
{%     endif %}
{%     if config.capability.extended_nexthop is defined %}
 neighbor {{ neighbor }} capability extended-nexthop
{%     endif %}
{%   endif %}
{%   if config.description is defined and config.description is not none %}
 neighbor {{ neighbor }} description {{ config.description }}
{%   endif %}
{%   if config.disable_capability_negotiation is defined %}
 neighbor {{ neighbor }} disable-capability-negotiation
{%   endif %}
{%   if config.ebgp_multihop is defined and config.ebgp_multihop is not none %}
 neighbor {{ neighbor }} ebgp-multihop {{ config.ebgp_multihop }}
{%   endif %}
{%   if config.local_as is defined and config.local_as is not none %}
{%     for local_asn in config.local_as %}
 neighbor {{ neighbor }} local-as {{ local_asn }} {{ 'no-prepend' if config.local_as[local_asn].no_prepend is defined }}
{%     endfor %}
{%   endif %}
{%   if config.override_capability is defined %}
 neighbor {{ neighbor }} override-capability
{%   endif %}
{%   if config.passive is defined %}
 neighbor {{ neighbor }} passive
{%   endif %}
{%   if config.password is defined and config.password is not none %}
 neighbor {{ neighbor }} password {{ config.password }}
{%   endif %}
{%   if config.shutdown is defined %}
 neighbor {{ neighbor }} shutdown
{%   endif %}
{%   if config.ttl_security is defined and config.ttl_security.hops is defined and config.ttl_security.hops is not none %}
 neighbor {{ neighbor }} ttl-security hops {{ config.ttl_security.hops }}
{%   endif %}
{%   if config.update_source is defined and config.update_source is not none %}
 neighbor {{ neighbor }} update-source {{ config.update_source }}
{%   endif %}
 !
{%   if config.address_family is defined and config.address_family is not none %}
{%     for af in config.address_family %}
{%       if af == 'ipv4_unicast' %}
 address-family ipv4 unicast
{%       elif af == 'ipv6_unicast' %}
 address-family ipv6 unicast
{%       endif %}
{%       if config.address_family[af].allowas_in is defined and config.address_family[af].allowas_in is not none %}
  neighbor {{ neighbor }} allowas-in {{ config.address_family[af].allowas_in.number if config.address_family[af].allowas_in.number is defined }}
{%       endif %}
{%       if config.address_family[af].remove_private_as is defined %}
  neighbor {{ neighbor }} remove-private-AS
{%       endif %}
{%       if config.address_family[af].route_reflector_client is defined %}
  neighbor {{ neighbor }} route-reflector-client
{%       endif %}
{%       if config.address_family[af].weight is defined and config.address_family[af].weight is not none %}
  neighbor {{ neighbor }} weight {{ config.address_family[af].weight }}
{%       endif %}
{%       if config.address_family[af].attribute_unchanged is defined and config.address_family[af].attribute_unchanged is not none %}
  neighbor {{ neighbor }} attribute-unchanged {{ 'as-path ' if config.address_family[af].attribute_unchanged.as_path is defined }}{{ 'med ' if config.address_family[af].attribute_unchanged.med is defined }}{{ 'next-hop ' if config.address_family[af].attribute_unchanged.next_hop is defined }}
{%       endif %}
{%       if config.address_family[af].capability is defined and config.address_family[af].capability.orf is defined and config.address_family[af].capability.orf.prefix_list is defined and config.address_family[af].capability.orf.prefix_list is not none %}
  neighbor {{ neighbor }} capability orf prefix-list {{ config.address_family[af].capability.orf.prefix_list }}
{%       endif %}
{%       if config.address_family[af].default_originate is defined %}
  neighbor {{ neighbor }} default-originate {{ 'route-map ' + config.address_family[af].default_originate.route_map if config.address_family[af].default_originate.route_map is defined }}
{%       endif %}
{%       if config.address_family[af].distribute_list is defined and config.address_family[af].distribute_list is not none %}
{%         if config.address_family[af].distribute_list.export is defined and config.address_family[af].distribute_list.export is not none %}
  neighbor {{ neighbor }} distribute-list {{ config.address_family[af].distribute_list.export }} out
{%         elif config.address_family[af].distribute_list.import is defined and config.address_family[af].distribute_list.import is not none %}
  neighbor {{ neighbor }} distribute-list {{ config.address_family[af].distribute_list.export }} in
{%         endif %}
{%       endif %}
{%       if config.address_family[af].filter_list is defined and config.address_family[af].filter_list is not none %}
{%         if config.address_family[af].filter_list.export is defined and config.address_family[af].filter_list.export is not none %}
  neighbor {{ neighbor }} filter-list {{ config.address_family[af].filter_list.export }} out
{%         elif config.address_family[af].filter_list.import is defined and config.address_family[af].filter_list.import is not none %}
  neighbor {{ neighbor }} filter-list {{ config.address_family[af].filter_list.import }} in
{%         endif %}
{%       endif %}
{%       if config.address_family[af].maximum_prefix is defined and config.address_family[af].maximum_prefix is not none %}
  neighbor {{ neighbor }} maximum-prefix {{ config.address_family[af].maximum_prefix }}
{%       endif %}
{%       if config.address_family[af].nexthop_self is defined %}
{#         https://phabricator.vyos.net/T1817 #}
  neighbor {{ neighbor }} next-hop-self {{ 'force' if config.address_family[af].nexthop_self.force is defined }}
{%       endif %}
{%       if config.address_family[af].route_server_client is defined %}
  neighbor {{ neighbor }} route-server-client
{%       endif %}
{%       if config.address_family[af].route_map is defined and config.address_family[af].route_map is not none %}
{%         if config.address_family[af].route_map.export is defined and config.address_family[af].route_map.export is not none %}
  neighbor {{ neighbor }} route-map {{ config.address_family[af].route_map.export }} out
{%         elif config.address_family[af].route_map.import is defined and config.address_family[af].route_map.import is not none %}
  neighbor {{ neighbor }} route-map {{ config.address_family[af].route_map.import }} in
{%         endif %}
{%       endif %}
{%       if config.address_family[af].prefix_list is defined and config.address_family[af].prefix_list is not none %}
{%         if config.address_family[af].prefix_list.export is defined and config.address_family[af].prefix_list.export is not none %}
  neighbor {{ neighbor }} prefix-list  {{ config.address_family[af].prefix_list.export }} out
{%         elif config.address_family[af].prefix_list.import is defined and config.address_family[af].prefix_list.import is not none %}
  neighbor {{ neighbor }} prefix-list  {{ config.address_family[af].prefix_list.import }} in
{%         endif %}
{%       endif %}
{%       if config.address_family[af].soft_reconfiguration is defined and config.address_family[af].soft_reconfiguration.inbound is defined %}
  neighbor {{ neighbor }} soft-reconfiguration inbound
{%       endif %}
{%       if config.address_family[af].unsuppress_map is defined and config.address_family[af].unsuppress_map is not none %}
  neighbor {{ neighbor }} unsuppress-map {{ config.address_family[af].unsuppress_map }}
{%       endif %}
  neighbor {{ neighbor }} activate
 exit-address-family
 !
{%     endfor %}
{%   endif %}
{% endmacro %}
!
router bgp {{ asn }}
 no bgp default ipv4-unicast
{% if address_family is defined and address_family is not none %}
{%   for af in address_family %}
 !
{%     if af == 'ipv4_unicast' %}
 address-family ipv4 unicast
{%     elif af == 'ipv6_unicast' %}
 address-family ipv6 unicast
{%     endif %}
{%     if address_family[af].aggregate_address is defined and address_family[af].aggregate_address is not none %}
{%       for ip in address_family[af].aggregate_address %}
  aggregate-address {{ ip }}{{ ' as-set' if address_family[af].aggregate_address[ip].as_set is defined }}{{ ' summary-only' if address_family[af].aggregate_address[ip].summary_only is defined }}
{%       endfor %}
{%     endif %}
{%     if address_family[af].redistribute is defined and address_family[af].redistribute is not none %}
{%       for protocol in address_family[af].redistribute %}
{%         if protocol == 'table' %}
  redistribute table {{ address_family[af].redistribute[protocol].table }}
{%         else %}
{%           set redistribution_protocol = protocol %}
{%             if protocol == 'ospfv3' %}
{%               set redistribution_protocol = 'ospf6' %}
{%             endif %}
  redistribute {{ redistribution_protocol }}{% if address_family[af].redistribute[protocol].metric is defined %} metric {{ address_family[af].redistribute[protocol].metric }}{% endif %}{% if address_family[af].redistribute[protocol].route_map is defined %} route-map {{ address_family[af].redistribute[protocol].route_map }}{% endif %}
{#######   we need this blank line!! #######}

{%         endif %}
{%       endfor %}
{%     endif %}
{%     if address_family[af].network is defined and address_family[af].network is not none %}
{%       for network in address_family[af].network %}
  network {{ network }}{% if address_family[af].network[network].route_map is defined %} route-map {{ address_family[af].network[network].route_map }}{% endif %}{% if address_family[af].network[network].backdoor is defined %} backdoor{% endif %}
{#######   we need this blank line!! #######}

{%       endfor %}
{%     endif %}
 exit-address-family
{%   endfor %}
{% endif %}
 !
{# set protocols bgp xxxx maximum-paths ibgp x, Generated by default for afi_4 #}
{# We don't have this parameter in afi_6. But this is supported in FRR #}
{% if maximum_paths is defined and maximum_paths is not none %}
{%   if maximum_paths.ebgp is defined and maximum_paths.ebgp is not none %}
 !
 address-family ipv4 unicast
  maximum-paths {{ maximum_paths.ebgp }}
 exit-address-family
 !
{%   endif %}
{%   if maximum_paths.ibgp is defined and maximum_paths.ibgp is not none %}
 !
 address-family ipv4 unicast
  maximum-paths ibgp {{ maximum_paths.ibgp }}
 exit-address-family
 !
{%   endif %}
{% endif %}
 !
{% if peer_group is defined and peer_group is not none %}
{%   for peer, config in peer_group.items() %}
{{ bgp_neighbor(peer, config, true) }}
{%   endfor %}
{% endif %}
 !
{% if neighbor is defined and neighbor is not none %}
{%   for n, config in neighbor.items() %}
{{ bgp_neighbor(n, config) }}
{%   endfor %}
{% endif %}
 !
{% if parameters is defined %}
{%   if parameters.always_compare_med is defined %}
 bgp always-compare-med
{%   endif %}
{%   if parameters.bestpath is defined and parameters.bestpath is not none %}
{%     if parameters.bestpath.compare_routerid is defined %}
 bgp bestpath compare-routerid
{%     endif %}
{%     if parameters.bestpath.as_path is defined and parameters.bestpath.as_path is not none %}
{%       for option in parameters.bestpath.as_path %}
 bgp bestpath as-path {{ option|replace('_', '-') }}
{%       endfor %}
{%     endif %}
{%     if parameters.bestpath.med is defined and parameters.bestpath.med is not none %}
 bgp bestpath med {{ 'confed' if parameters.bestpath.med.confed is defined }} {{ 'missing-as-worst' if parameters.bestpath.med.missing_as_worst is defined }}
{%     endif %}
{%   endif %}
{%   if parameters.cluster_id is defined and parameters.cluster_id is not none %}
 bgp cluster-id {{ parameters.cluster_id }}
{%   endif %}
{%   if parameters.confederation is defined and parameters.confederation is not none %}
{%     if parameters.confederation.identifier is defined and parameters.confederation.identifier is not none %}
 bgp confederation identifier {{ parameters.confederation.identifier }}
{%     endif %}
{%     if parameters.confederation.peers is defined and parameters.confederation.peers is not none %}
 bgp confederation peers {{ parameters.confederation.peers }}
{%     endif %}
{%   endif %}
{%   if parameters.dampening is defined and parameters.dampening is defined and parameters.dampening.half_life is defined and parameters.dampening.half_life is not none %}
{# Doesn't work in current FRR configuration; vtysh (bgp dampening 16 751 2001 61) #}
 bgp dampening {{ parameters.dampening.half_life }} {{ parameters.dampening.re_use if parameters.dampening.re_use is defined }} {{ parameters.dampening.start_suppress_time if parameters.dampening.start_suppress_time is defined }} {{ parameters.dampening.max_suppress_time if parameters.dampening.max_suppress_time is defined }}
{%   endif %}
{%   if parameters.default is defined and parameters.default is not none %}
{%     if parameters.default.local_pref is defined and parameters.default.local_pref is not none %}
 bgp default local-preference {{ parameters.default.local_pref }}
{%     endif %}
{%     if parameters.default.no_ipv4_unicast is defined %}
{#     We use this is parameter as default in template (5-th string) #}
 no bgp default ipv4-unicast
{%     endif %}
{%   endif %}
{%   if parameters.deterministic_med is defined %}
 bgp deterministic-med
{%   endif %}
{%   if parameters.distance is defined and parameters.distance is not none %}
 !
 address-family ipv4 unicast
{%     if parameters.distance.global is defined and parameters.distance.global.external is defined and parameters.distance.global.internal is defined and parameters.distance.global.local is defined %}
  distance bgp {{ parameters.distance.global.external }} {{ parameters.distance.global.internal }} {{ parameters.distance.global.local }}
{%     endif %}
{%     if parameters.distance.prefix is defined and parameters.distance.prefix is not none %}
{%       for prefix in parameters.distance.prefix %}
  distance {{ parameters.distance.prefix[prefix].distance }} {{ prefix }}
{%       endfor %}
{%     endif %}
 exit-address-family
 !
{%   endif %}
{%   if parameters.graceful_restart is defined %}
 bgp graceful-restart {{ 'stalepath-time ' + parameters.graceful_restart.stalepath_time if parameters.graceful_restart.stalepath_time is defined }}
{%   endif %}
{%   if parameters.log_neighbor_changes is defined %}
 bgp log-neighbor-changes
{%   endif %}
{%   if parameters.network_import_check is defined %}
 bgp network import-check
{%   endif %}
{%   if parameters.no_client_to_client_reflection is defined %}
 no bgp client-to-client reflection
{%   endif %}
{%   if parameters.no_fast_external_failover is defined %}
 no bgp fast-external-failover
{%   endif %}
{%   if parameters.router_id is defined and parameters.router_id is not none %}
 bgp router-id {{ parameters.router_id }}
{%   endif %}
{% endif %}
{% if timers is defined and timers.keepalive is defined and timers.holdtime is defined %}
 timers bgp {{ timers.keepalive }} {{ timers.holdtime }}
{% endif %}
 !
{% if route_map is defined and route_map is not none %}
 ip protocol bgp route-map {{ route_map }}
{% endif %}
 !