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bgpd: Fix bgp core with a possible Intf delete
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Although trigger unknown, based on the backtrace in one of the internal
testing, we do see some delete in the Intf where we can have the peer
ifp pointer null and we try to dereference it while trying to install
the route leading to a crash

Skip updating the ifindex in such cases and since the nexthop is not
properly updated, BGP skips sending it to zebra.

BackTrace:
0  0x00007faef05e7ebc in ?? () from /lib/x86_64-linux-gnu/libc.so.6
1  0x00007faef0598fb2 in raise () from /lib/x86_64-linux-gnu/libc.so.6
2  0x00007faef09900dc in core_handler (signo=11, siginfo=0x7ffdde8cb4b0, context=<optimized out>) at lib/sigevent.c:274
3  <signal handler called>
4  0x00005560aad4b7d8 in update_ipv6nh_for_route_install (api_nh=0x7ffdde8cbe94, is_evpn=false, best_pi=0x5560b21187d0, pi=0x5560b21187d0, ifindex=0, nexthop=0x5560b03cb0dc,
   nh_bgp=0x5560ace04df0, nh_othervrf=0) at bgpd/bgp_zebra.c:1273
5  bgp_zebra_announce_actual (dest=dest@entry=0x5560afcfa950, info=0x5560b21187d0, bgp=0x5560ace04df0) at bgpd/bgp_zebra.c:1521
6  0x00005560aad4bc85 in bgp_handle_route_announcements_to_zebra (e=<optimized out>) at bgpd/bgp_zebra.c:1896
7  0x00007faef09a1c0d in thread_call (thread=thread@entry=0x7ffdde8d7580) at lib/thread.c:2008
8  0x00007faef095a598 in frr_run (master=0x5560ac7e5190) at lib/libfrr.c:1223
9  0x00005560aac65db6 in main (argc=<optimized out>, argv=<optimized out>) at bgpd/bgp_main.c:557

(gdb) f 4
4  0x00005560aad4b7d8 in update_ipv6nh_for_route_install (api_nh=0x7ffdde8cbe94, is_evpn=false, best_pi=0x5560b21187d0, pi=0x5560b21187d0, ifindex=0, nexthop=0x5560b03cb0dc,
    nh_bgp=0x5560ace04df0, nh_othervrf=0) at bgpd/bgp_zebra.c:1273
1273	in bgpd/bgp_zebra.c
(gdb) p pi->peer->ifp
$26 = (struct interface *) 0x0

Ticket :#4203904

Signed-off-by: Rajasekar Raja <rajasekarr@nvidia.com>
(cherry picked from commit 9b0b9282d317a9aeab36d9a8b08a35fe9a172c4b)

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#	tests/ospf6d/test_lsdb.c
#	tests/topotests/Dockerfile
#	tests/topotests/all_protocol_startup/r1/ip_nht.ref
#	tests/topotests/all_protocol_startup/r1/ipv4_routes.ref
#	tests/topotests/all_protocol_startup/r1/ipv6_nht.ref
#	tests/topotests/all_protocol_startup/r1/ipv6_routes.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv4-post4.1.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv4-post5.0.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv4-post6.1.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv4.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv6-post4.1.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv6.ref
#	tests/topotests/all_protocol_startup/r1/show_bgp_ipv6_post6.1.ref
#	tests/topotests/all_protocol_startup/r1/show_ip_ospf_interface.ref
#	tests/topotests/all_protocol_startup/r1/show_route_map.ref
#	tests/topotests/all_protocol_startup/test_all_protocol_startup.py
#	tests/topotests/analyze.py
#	tests/topotests/babel_topo1/test_babel_topo1.py
#	tests/topotests/bfd_bgp_cbit_topo3/r1/bgp_ipv6_routes_down.json
#	tests/topotests/bfd_bgp_cbit_topo3/r1/bgpd.conf
#	tests/topotests/bfd_bgp_cbit_topo3/r1/ipv6_routes.json
#	tests/topotests/bfd_bgp_cbit_topo3/r3/bgpd.conf
#	tests/topotests/bfd_bgp_cbit_topo3/test_bfd_bgp_cbit_topo3.py
#	tests/topotests/bfd_isis_topo1/rt1/step1/show_ipv6_route.ref
#	tests/topotests/bfd_isis_topo1/rt1/step3/show_ipv6_route_healthy.ref
#	tests/topotests/bfd_isis_topo1/rt1/step3/show_ipv6_route_rt2_down.ref
#	tests/topotests/bfd_isis_topo1/rt1/step3/show_ipv6_route_rt3_down.ref
#	tests/topotests/bfd_isis_topo1/rt1/zebra.conf
#	tests/topotests/bfd_isis_topo1/rt2/zebra.conf
#	tests/topotests/bfd_isis_topo1/rt3/zebra.conf
#	tests/topotests/bfd_isis_topo1/rt4/zebra.conf
#	tests/topotests/bfd_isis_topo1/rt5/zebra.conf
#	tests/topotests/bfd_ospf_topo1/rt1/step1/show_ipv6_route.ref
#	tests/topotests/bfd_ospf_topo1/rt1/step3/show_ipv6_route_healthy.ref
#	tests/topotests/bfd_ospf_topo1/rt1/step3/show_ipv6_route_rt2_down.ref
#	tests/topotests/bfd_ospf_topo1/rt1/step3/show_ipv6_route_rt3_down.ref
#	tests/topotests/bfd_ospf_topo1/rt1/zebra.conf
#	tests/topotests/bfd_ospf_topo1/rt2/zebra.conf
#	tests/topotests/bfd_ospf_topo1/rt3/zebra.conf
#	tests/topotests/bfd_ospf_topo1/rt4/zebra.conf
#	tests/topotests/bfd_ospf_topo1/rt5/zebra.conf
#	tests/topotests/bfd_ospf_topo1/test_bfd_ospf_topo1.py
#	tests/topotests/bfd_profiles_topo1/r2/bgpd.conf
#	tests/topotests/bfd_profiles_topo1/r3/bgpd.conf
#	tests/topotests/bfd_profiles_topo1/r4/bgpd.conf
#	tests/topotests/bfd_topo3/test_bfd_topo3.py
#	tests/topotests/bfd_vrf_topo1/test_bfd_vrf_topo1.py
#	tests/topotests/bfd_vrflite_topo1/test_bfd_vrflite_topo1.py
#	tests/topotests/bgp_accept_own/test_bgp_accept_own.py
#	tests/topotests/bgp_addpath_best_selected/test_bgp_addpath_best_selected.py
#	tests/topotests/bgp_aggregate_address_matching_med/test_bgp_aggregate_address_matching_med.py
#	tests/topotests/bgp_aggregate_address_origin/test_bgp_aggregate-address_origin.py
#	tests/topotests/bgp_aggregate_address_route_map/test_bgp_aggregate-address_route-map.py
#	tests/topotests/bgp_aggregate_address_topo1/r1/bgpd.conf
#	tests/topotests/bgp_aggregate_address_topo1/r2/bgpd.conf
#	tests/topotests/bgp_aggregator_zero/r1/bgpd.conf
#	tests/topotests/bgp_aggregator_zero/test_bgp_aggregator_zero.py
#	tests/topotests/bgp_aigp/r1/bgpd.conf
#	tests/topotests/bgp_aigp/r1/zebra.conf
#	tests/topotests/bgp_aigp/test_bgp_aigp.py
#	tests/topotests/bgp_as_allow_in/test_bgp_as_allow_in.py
#	tests/topotests/bgp_as_override/test_bgp_as_override.py
#	tests/topotests/bgp_as_wide_bgp_identifier/test_bgp_as_wide_bgp_identifier.py
#	tests/topotests/bgp_asdot_regex/test_bgp_asdot_regex.py
#	tests/topotests/bgp_aspath_zero/r1/bgpd.conf
#	tests/topotests/bgp_aspath_zero/test_bgp_aspath_zero.py
#	tests/topotests/bgp_auth/bgp_auth_common.py
#	tests/topotests/bgp_auth/test_bgp_auth1.py
#	tests/topotests/bgp_auth/test_bgp_auth2.py
#	tests/topotests/bgp_auth/test_bgp_auth3.py
#	tests/topotests/bgp_auth/test_bgp_auth4.py
#	tests/topotests/bgp_basic_functionality_topo1/test_bgp_basic_functionality.py
#	tests/topotests/bgp_bfd_down_cease_notification/r1/bfdd.conf
#	tests/topotests/bgp_bfd_down_cease_notification/r1/bgpd.conf
#	tests/topotests/bgp_bfd_down_cease_notification/test_bgp_bfd_down_cease_notification.py
#	tests/topotests/bgp_blackhole_community/test_bgp_blackhole_community.py
#	tests/topotests/bgp_color_extcommunities/r1/bgpd.conf
#	tests/topotests/bgp_color_extcommunities/test_bgp_color_extcommunities.py
#	tests/topotests/bgp_comm_list_delete/test_bgp_comm-list_delete.py
#	tests/topotests/bgp_comm_list_match/test_bgp_comm_list_match.py
#	tests/topotests/bgp_communities_topo1/test_bgp_communities_topo2.py
#	tests/topotests/bgp_community_alias/test_bgp-community-alias.py
#	tests/topotests/bgp_community_change_update/test_bgp_community_change_update.py
#	tests/topotests/bgp_conditional_advertisement/test_bgp_conditional_advertisement.py
#	tests/topotests/bgp_conditional_advertisement_static_route/test_bgp_conditional_advertisement_static_route.py
#	tests/topotests/bgp_conditional_advertisement_track_peer/test_bgp_conditional_advertisement_track_peer.py
#	tests/topotests/bgp_confed1/test_bgp_confed1.py
#	tests/topotests/bgp_confederation_astype/test_bgp_confederation_astype.py
#	tests/topotests/bgp_default_afi_safi/test_bgp-default-afi-safi.py
#	tests/topotests/bgp_default_originate/test_bgp_default_originate_2links.py
#	tests/topotests/bgp_default_originate/test_bgp_default_originate_topo1_1.py
#	tests/topotests/bgp_default_originate/test_bgp_default_originate_topo1_2.py
#	tests/topotests/bgp_default_originate/test_default_orginate_vrf.py
#	tests/topotests/bgp_default_originate/test_default_originate_conditional_routemap.py
#	tests/topotests/bgp_default_originate_timer/test_bgp_default_originate_timer.py
#	tests/topotests/bgp_default_originate_withdraw/test_bgp_default_originate_withdraw.py
#	tests/topotests/bgp_default_route/test_bgp_default-originate.py
#	tests/topotests/bgp_default_route_route_map_match/test_bgp_default-originate_route-map_match.py
#	tests/topotests/bgp_default_route_route_map_match2/test_bgp_default-originate_route-map_match2.py
#	tests/topotests/bgp_default_route_route_map_match_set/test_bgp_default-originate_route-map_match_set.py
#	tests/topotests/bgp_default_route_route_map_set/test_bgp_default-originate_route-map_set.py
#	tests/topotests/bgp_disable_addpath_rx/test_disable_addpath_rx.py
#	tests/topotests/bgp_distance_change/test_bgp_admin_dist.py
#	tests/topotests/bgp_distance_change/test_bgp_distance_change.py
#	tests/topotests/bgp_dont_capability_negotiate/test_bgp_dont_capability_negotiate.py
#	tests/topotests/bgp_dynamic_capability/r1/frr.conf
#	tests/topotests/bgp_dynamic_capability/r2/frr.conf
#	tests/topotests/bgp_dynamic_capability/test_bgp_dynamic_capability_addpath.py
#	tests/topotests/bgp_dynamic_capability/test_bgp_dynamic_capability_fqdn.py
#	tests/topotests/bgp_dynamic_capability/test_bgp_dynamic_capability_graceful_restart.py
#	tests/topotests/bgp_dynamic_capability/test_bgp_dynamic_capability_orf.py
#	tests/topotests/bgp_dynamic_capability/test_bgp_dynamic_capability_role.py
#	tests/topotests/bgp_dynamic_capability/test_bgp_dynamic_capability_software_version.py
#	tests/topotests/bgp_ebgp_common_subnet_nexthop_unchanged/test_bgp-ebgp-common-subnet-nexthop-unchanged.py
#	tests/topotests/bgp_ebgp_requires_policy/test_bgp_ebgp_requires_policy.py
#	tests/topotests/bgp_ecmp_topo1/r1/bgpd.conf
#	tests/topotests/bgp_ecmp_topo2/test_ibgp_ecmp_topo2.py
#	tests/topotests/bgp_evpn_mh/leaf1/evpn.conf
#	tests/topotests/bgp_evpn_mh/leaf2/evpn.conf
#	tests/topotests/bgp_evpn_mh/spine1/evpn.conf
#	tests/topotests/bgp_evpn_mh/spine2/evpn.conf
#	tests/topotests/bgp_evpn_mh/test_evpn_mh.py
#	tests/topotests/bgp_evpn_mh/torm11/evpn.conf
#	tests/topotests/bgp_evpn_mh/torm12/evpn.conf
#	tests/topotests/bgp_evpn_mh/torm21/evpn.conf
#	tests/topotests/bgp_evpn_mh/torm22/evpn.conf
#	tests/topotests/bgp_evpn_overlay_index_gateway/test_bgp_evpn_overlay_index_gateway.py
#	tests/topotests/bgp_evpn_route_map_match/test_bgp_evpn_route_map_match.py
#	tests/topotests/bgp_evpn_rt5/r1/bgpd.conf
#	tests/topotests/bgp_evpn_rt5/r1/zebra.conf
#	tests/topotests/bgp_evpn_rt5/r2/bgpd.conf
#	tests/topotests/bgp_evpn_rt5/r2/zebra.conf
#	tests/topotests/bgp_evpn_rt5/test_bgp_evpn.py
#	tests/topotests/bgp_evpn_vxlan_svd_topo1/PE1/evpn.vni.json
#	tests/topotests/bgp_evpn_vxlan_svd_topo1/PE2/evpn.vni.json
#	tests/topotests/bgp_extcomm_list_delete/test_bgp_extcomm-list_delete.py
#	tests/topotests/bgp_extended_optional_parameters_length/test_bgp_extended_optional_parameters_length.py
#	tests/topotests/bgp_features/r1/ip_route.json
#	tests/topotests/bgp_features/r1/ip_route_norib.json
#	tests/topotests/bgp_features/test_bgp_features.py
#	tests/topotests/bgp_flowspec/r1/bgpd.conf
#	tests/topotests/bgp_gr_functionality_topo1/test_bgp_gr_functionality_topo1-1.py
#	tests/topotests/bgp_gr_functionality_topo1/test_bgp_gr_functionality_topo1-2.py
#	tests/topotests/bgp_gr_functionality_topo1/test_bgp_gr_functionality_topo1-3.py
#	tests/topotests/bgp_gr_functionality_topo1/test_bgp_gr_functionality_topo1-4.py
#	tests/topotests/bgp_gr_functionality_topo2/test_bgp_gr_functionality_topo2-1.py
#	tests/topotests/bgp_gr_functionality_topo2/test_bgp_gr_functionality_topo2-2.py
#	tests/topotests/bgp_gr_functionality_topo2/test_bgp_gr_functionality_topo2-3.py
#	tests/topotests/bgp_gr_functionality_topo2/test_bgp_gr_functionality_topo2-4.py
#	tests/topotests/bgp_gr_functionality_topo3/test_bgp_gr_functionality_topo3.py
#	tests/topotests/bgp_gr_notification/r1/bgpd.conf
#	tests/topotests/bgp_gr_notification/r2/bgpd.conf
#	tests/topotests/bgp_gr_notification/test_bgp_gr_notification.py
#	tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_restart_retain_routes.py
#	tests/topotests/bgp_gshut/test_bgp_gshut.py
#	tests/topotests/bgp_ipv4_class_e_peer/test_bgp_ipv4_class_e_peer.py
#	tests/topotests/bgp_ipv4_over_ipv6/test_rfc5549_ebgp_unnumbered_nbr.py
#	tests/topotests/bgp_ipv6_ll_peering/test_bgp_ipv6_ll_peering.py
#	tests/topotests/bgp_l3vpn_label_export/test_bgp_l3vpn_label_export.py
#	tests/topotests/bgp_l3vpn_to_bgp_direct/scripts/add_routes.py
#	tests/topotests/bgp_l3vpn_to_bgp_direct/scripts/adjacencies.py
#	tests/topotests/bgp_l3vpn_to_bgp_vrf/scripts/scale_up.py
#	tests/topotests/bgp_l3vpn_to_bgp_vrf/test_bgp_l3vpn_to_bgp_vrf.py
#	tests/topotests/bgp_labeled_unicast_addpath/test_bgp_labeled_unicast_addpath.py
#	tests/topotests/bgp_labeled_unicast_default_originate/test_bgp_labeled_unicast_default_originate.py
#	tests/topotests/bgp_large_comm_list_match/test_bgp_large_comm_list_match.py
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-1.json
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-2.json
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-3.json
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-6.json
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-7.json
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-8.json
#	tests/topotests/bgp_link_bw_ip/r1/ip-route-9.json
#	tests/topotests/bgp_link_bw_ip/r2/bgp-route-3.json
#	tests/topotests/bgp_link_bw_ip/r2/ip-route-2.json
#	tests/topotests/bgp_link_bw_ip/r5/bgpd.conf
#	tests/topotests/bgp_link_bw_ip/test_bgp_linkbw_ip.py
#	tests/topotests/bgp_llgr/test_bgp_llgr.py
#	tests/topotests/bgp_local_as/test_bgp_local_as.py
#	tests/topotests/bgp_local_as_dotplus_private_remove/test_bgp_local_as_dotplus_private_remove.py
#	tests/topotests/bgp_local_as_private_remove/test_bgp_local_as_private_remove.py
#	tests/topotests/bgp_local_asn/test_bgp_local_asn_agg.py
#	tests/topotests/bgp_local_asn/test_bgp_local_asn_ecmp.py
#	tests/topotests/bgp_local_asn/test_bgp_local_asn_topo1.py
#	tests/topotests/bgp_local_asn/test_bgp_local_asn_topo2.py
#	tests/topotests/bgp_local_asn/test_bgp_local_asn_vrf_topo1.py
#	tests/topotests/bgp_local_asn/test_bgp_local_asn_vrf_topo2.py
#	tests/topotests/bgp_local_asn_dot/test_bgp_local_asn_dot_agg.py
#	tests/topotests/bgp_local_asn_dot/test_bgp_local_asn_dot_ecmp.py
#	tests/topotests/bgp_local_asn_dot/test_bgp_local_asn_dot_topo1.py
#	tests/topotests/bgp_lu_explicitnull/test_bgp_lu_explicitnull.py
#	tests/topotests/bgp_lu_topo1/R3/bgpd.conf
#	tests/topotests/bgp_lu_topo1/R3/zebra.conf
#	tests/topotests/bgp_lu_topo2/R3/bgpd.conf
#	tests/topotests/bgp_lu_topo2/R3/staticd.conf
#	tests/topotests/bgp_lu_topo2/R3/zebra.conf
#	tests/topotests/bgp_max_med_on_startup/r1/bgpd.conf
#	tests/topotests/bgp_max_med_on_startup/test_bgp_max_med_on_startup.py
#	tests/topotests/bgp_maximum_prefix_invalid_update/test_bgp_maximum_prefix_invalid_update.py
#	tests/topotests/bgp_maximum_prefix_out/test_bgp_maximum_prefix_out.py
#	tests/topotests/bgp_minimum_holdtime/test_bgp_minimum_holdtime.py
#	tests/topotests/bgp_multi_vrf_topo2/test_bgp_multi_vrf_topo2.py
#	tests/topotests/bgp_multiview_topo1/r1/bgpd.conf
#	tests/topotests/bgp_node_target_extcommunities/test_bgp_node_target_extcommunities.py
#	tests/topotests/bgp_oad/test_bgp_oad.py
#	tests/topotests/bgp_orf/test_bgp_orf.py
#	tests/topotests/bgp_path_attribute_discard/r1/frr.conf
#	tests/topotests/bgp_path_attribute_discard/r2/frr.conf
#	tests/topotests/bgp_path_attribute_discard/test_bgp_path_attribute_discard.py
#	tests/topotests/bgp_path_attributes_topo1/test_bgp_path_attributes.py
#	tests/topotests/bgp_path_selection/test_bgp_path_selection.py
#	tests/topotests/bgp_peer_graceful_shutdown/test_bgp_peer_graceful_shutdown.py
#	tests/topotests/bgp_peer_group/test_bgp_peer-group.py
#	tests/topotests/bgp_peer_type_multipath_relax/r1/bgpd.conf
#	tests/topotests/bgp_peer_type_multipath_relax/r1/prefix1-eBGP-confed.json
#	tests/topotests/bgp_peer_type_multipath_relax/r1/prefix1-eBGP-iBGP.json
#	tests/topotests/bgp_peer_type_multipath_relax/r2/bgpd.conf
#	tests/topotests/bgp_peer_type_multipath_relax/test_bgp_peer-type_multipath-relax.py
#	tests/topotests/bgp_prefix_list_any/r1/bgpd.conf
#	tests/topotests/bgp_prefix_list_any/r2/bgpd.conf
#	tests/topotests/bgp_prefix_list_any/test_bgp_prefix_list_any.py
#	tests/topotests/bgp_prefix_sid/r1/bgpd.conf
#	tests/topotests/bgp_prefix_sid/test_bgp_prefix_sid.py
#	tests/topotests/bgp_prefix_sid2/r1/bgpd.conf
#	tests/topotests/bgp_prefix_sid2/test_bgp_prefix_sid2.py
#	tests/topotests/bgp_redistribute_table/test_bgp_redistribute_table.py
#	tests/topotests/bgp_reject_as_sets/test_bgp_reject_as_sets.py
#	tests/topotests/bgp_remove_private_as/test_bgp_remove_private_as.py
#	tests/topotests/bgp_remove_private_as_route_map/test_bgp_remove_private_as_route_map.py
#	tests/topotests/bgp_rmap_extcommunity_none/test_bgp_rmap_extcommunity_none.py
#	tests/topotests/bgp_roles_capability/test_bgp_roles_capability.py
#	tests/topotests/bgp_roles_filtering/test_bgp_roles_filtering.py
#	tests/topotests/bgp_route_aggregation/test_bgp_aggregation.py
#	tests/topotests/bgp_route_map_delay_timer/test_bgp_route_map_delay_timer.py
#	tests/topotests/bgp_route_map_match_ipv6_nexthop/r1/bgpd.conf
#	tests/topotests/bgp_route_map_match_ipv6_nexthop/r2/bgpd.conf
#	tests/topotests/bgp_route_map_match_ipv6_nexthop/test_bgp_route_map_match_ipv6_nexthop.py
#	tests/topotests/bgp_route_map_match_source_protocol/test_bgp_route_map_match_source_protocol.py
#	tests/topotests/bgp_route_map_on_match_next/test_bgp_route_map_on_match_next.py
#	tests/topotests/bgp_route_map_vpn_import/test_bgp_route_map_vpn_import.py
#	tests/topotests/bgp_route_origin_parser/test_bgp_route_origin_parser.py
#	tests/topotests/bgp_route_server_client/r1/bgpd.conf
#	tests/topotests/bgp_route_server_client/r2/bgpd.conf
#	tests/topotests/bgp_route_server_client/r3/bgpd.conf
#	tests/topotests/bgp_route_server_client/test_bgp_route_server_client.py
#	tests/topotests/bgp_rpki_topo1/r2/bgpd.conf
#	tests/topotests/bgp_rpki_topo1/test_bgp_rpki_topo1.py
#	tests/topotests/bgp_rr_ibgp/test_bgp_rr_ibgp_topo1.py
#	tests/topotests/bgp_sender_as_path_loop_detection/test_bgp_sender-as-path-loop-detection.py
#	tests/topotests/bgp_set_aspath_exclude/test_bgp_set_aspath_exclude.py
#	tests/topotests/bgp_set_aspath_replace/test_bgp_set_aspath_replace.py
#	tests/topotests/bgp_set_local_preference_add_subtract/test_bgp_set_local-preference_add_subtract.py
#	tests/topotests/bgp_snmp_mplsl3vpn/ce1/bgpd.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce1/zebra.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce2/bgpd.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce2/zebra.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce3/bgpd.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce3/zebra.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce4/bgpd.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/ce4/zebra.conf
#	tests/topotests/bgp_snmp_mplsl3vpn/r1/bgpd.conf
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#	tests/topotests/bgp_srv6l3vpn_to_bgp_vrf2/test_bgp_srv6l3vpn_to_bgp_vrf2.py
#	tests/topotests/bgp_srv6l3vpn_to_bgp_vrf3/test_bgp_srv6l3vpn_to_bgp_vrf3.py
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#	tests/topotests/isis_tilfa_topo1/rt1/step1/show_mpls_table.ref
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#	tests/topotests/isis_tilfa_topo1/rt2/step1/show_ipv6_route.ref
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#	tests/topotests/ospf6_ecmp_inter_area/r7/zebra.conf
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#	tests/topotests/ospf6_ecmp_inter_area/r8/zebra.conf
#	tests/topotests/ospf6_ecmp_inter_area/test_ospf6_ecmp_inter_area.py
#	tests/topotests/ospf6_gr_topo1/test_ospf6_gr_topo1.py
#	tests/topotests/ospf6_loopback_cost/test_ospf6_loopback_cost.py
#	tests/topotests/ospf6_point_to_multipoint/test_ospf6_point_to_multipoint.py
#	tests/topotests/ospf6_topo1/test_ospf6_topo1.py
#	tests/topotests/ospf6_topo1_vrf/test_ospf6_topo1_vrf.py
#	tests/topotests/ospf_basic_functionality/test_ospf_asbr_summary_topo1.py
#	tests/topotests/ospf_basic_functionality/test_ospf_asbr_summary_type7_lsa.py
#	tests/topotests/ospf_basic_functionality/test_ospf_authentication.py
#	tests/topotests/ospf_basic_functionality/test_ospf_chaos.py
#	tests/topotests/ospf_basic_functionality/test_ospf_ecmp.py
#	tests/topotests/ospf_basic_functionality/test_ospf_flood_reduction.py
#	tests/topotests/ospf_basic_functionality/test_ospf_nssa.py
#	tests/topotests/ospf_basic_functionality/test_ospf_p2mp.py
#	tests/topotests/ospf_basic_functionality/test_ospf_routemaps.py
#	tests/topotests/ospf_basic_functionality/test_ospf_rte_calc.py
#	tests/topotests/ospf_basic_functionality/test_ospf_single_area.py
#	tests/topotests/ospf_dual_stack/test_ospf_dual_stack.py
#	tests/topotests/ospf_gr_helper/test_ospf_gr_helper1.py
#	tests/topotests/ospf_gr_helper/test_ospf_gr_helper2.py
#	tests/topotests/ospf_gr_helper/test_ospf_gr_helper3.py
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#	tests/topotests/ospf_instance_redistribute/test_ospf_instance_redistribute.py
#	tests/topotests/ospf_metric_propagation/h1/frr.conf
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#	tests/topotests/ospf_metric_propagation/r1/frr.conf
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#	tests/topotests/ospf_metric_propagation/r4/frr.conf
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#	tests/topotests/ospf_metric_propagation/test_ospf_metric_propagation.py
#	tests/topotests/ospf_multi_vrf_bgp_route_leak/r1/frr.conf
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#	tests/topotests/ospf_multi_vrf_bgp_route_leak/r1/zebra-vrf-neno.txt
#	tests/topotests/ospf_multi_vrf_bgp_route_leak/r2/frr.conf
#	tests/topotests/ospf_multi_vrf_bgp_route_leak/r2/zebra-vrf-default.txt
#	tests/topotests/ospf_multi_vrf_bgp_route_leak/r2/zebra-vrf-ray.txt
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#	tests/topotests/ospf_multi_vrf_bgp_route_leak/test_ospf_multi_vrf_bgp_route_leak.py
#	tests/topotests/ospf_netns_vrf/r1/ospfd.conf
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#	tests/topotests/ospf_netns_vrf/r2/ospfd.conf
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#	tests/topotests/ospf_netns_vrf/r2/zebraroutedown.txt
#	tests/topotests/ospf_netns_vrf/r3/ospfd.conf
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#	tests/topotests/ospf_netns_vrf/test_ospf_netns_vrf.py
#	tests/topotests/ospf_nssa_topo1/test_ospf_nssa_topo1.py
#	tests/topotests/ospf_prefix_suppression/r1/frr.conf
#	tests/topotests/ospf_prefix_suppression/r2/frr.conf
#	tests/topotests/ospf_prefix_suppression/r3/frr.conf
#	tests/topotests/ospf_prefix_suppression/test_ospf_prefix_suppression.py
#	tests/topotests/ospf_sr_te_topo1/test_ospf_sr_te_topo1.py
#	tests/topotests/ospf_sr_topo1/test_ospf_sr_topo1.py
#	tests/topotests/ospf_suppress_fa/r2/ospfd.conf
#	tests/topotests/ospf_suppress_fa/test_ospf_suppress_fa.py
#	tests/topotests/ospf_tilfa_topo1/test_ospf_tilfa_topo1.py
#	tests/topotests/ospf_topo1/test_ospf_topo1.py
#	tests/topotests/ospf_topo2/test_ospf_topo2.py
#	tests/topotests/ospf_unnumbered/test_ospf_unnumbered.py
#	tests/topotests/ospf_unnumbered_point_to_multipoint/test_ospf_unnumbered_point_to_multipoint.py
#	tests/topotests/ospfapi/test_ospf_clientapi.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_asbr_summary_topo1.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_authentication.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_ecmp.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_ecmp_lan.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_nssa.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_nssa2.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_routemaps.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_rte_calc.py
#	tests/topotests/ospfv3_basic_functionality/test_ospfv3_single_area.py
#	tests/topotests/pim_acl/test_pim_acl.py
#	tests/topotests/pim_basic/test_pim.py
#	tests/topotests/pim_igmp_vrf/r1/ospfd.conf
#	tests/topotests/pim_igmp_vrf/r1/pimd.conf
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#	tests/topotests/pim_igmp_vrf/test_pim_vrf.py
#	tests/topotests/pytest.ini
#	tests/topotests/rip_allow_ecmp/test_rip_allow_ecmp.py
#	tests/topotests/rip_bfd_topo1/test_rip_bfd_topo1.py
#	tests/topotests/rip_passive_interface/test_rip_passive_interface.py
#	tests/topotests/rip_topo1/r1/show_ip_rip.ref
#	tests/topotests/rip_topo1/r2/show_ip_rip.ref
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#	tests/topotests/ripng_allow_ecmp/test_ripng_allow_ecmp.py
#	tests/topotests/ripng_route_map/test_ripng_route_map.py
#	tests/topotests/ripng_topo1/r1/show_ipv6_ripng.ref
#	tests/topotests/ripng_topo1/r2/show_ipv6_ripng.ref
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#	tests/topotests/route_scale/scale_test_common.py
#	tests/topotests/route_scale/test_route_scale1.py
#	tests/topotests/route_scale/test_route_scale2.py
#	tests/topotests/simple_snmp_test/r1/bgpd.conf
#	tests/topotests/simple_snmp_test/r1/isisd.conf
#	tests/topotests/simple_snmp_test/r1/zebra.conf
#	tests/topotests/simple_snmp_test/test_simple_snmp.py
#	tests/topotests/srv6_encap_src_addr/r1/zebra.conf
#	tests/topotests/srv6_encap_src_addr/test_srv6_encap_src_addr.py
#	tests/topotests/srv6_locator/test_srv6_locator.py
#	tests/topotests/srv6_locator_custom_bits_length/test_srv6_locator_custom_bits_length.py
#	tests/topotests/srv6_locator_usid/test_srv6_locator_usid.py
#	tests/topotests/srv6_static_route/test_srv6_route.py
#	tests/topotests/static_routing_mpls/test_static_routing_mpls.py
#	tests/topotests/static_routing_with_ebgp/test_static_routes_topo2_ebgp.py
#	tests/topotests/static_routing_with_ebgp/test_static_routes_topo3_ebgp.py
#	tests/topotests/static_routing_with_ebgp/test_static_routes_topo4_ebgp.py
#	tests/topotests/static_routing_with_ibgp/test_static_routes_topo1_ibgp.py
#	tests/topotests/static_routing_with_ibgp/test_static_routes_topo2_ibgp.py
#	tests/topotests/static_routing_with_ibgp/test_static_routes_topo3_ibgp.py
#	tests/topotests/static_routing_with_ibgp/test_static_routes_topo4_ibgp.py
#	tests/topotests/static_simple/test_static_simple.py
#	tests/topotests/tc_basic/test_tc_basic.py
#	tests/topotests/zebra_multiple_connected/test_zebra_multiple_connected.py
#	tests/topotests/zebra_netlink/test_zebra_netlink.py
#	tests/topotests/zebra_nht_resolution/test_verify_nh_resolution.py
#	tests/topotests/zebra_opaque/test_zebra_opaque.py
#	tests/topotests/zebra_rib/r1/sharp_rmap.ref
#	tests/topotests/zebra_rib/r1/static_rmap.ref
#	tests/topotests/zebra_rib/test_zebra_rib.py
#	tests/topotests/zebra_seg6_route/test_zebra_seg6_route.py
#	tests/topotests/zebra_seg6local_route/r1/routes.json
#	tests/topotests/zebra_seg6local_route/test_zebra_seg6local_route.py
#	tools/checkpatch.pl
#	tools/cocci.h
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#	tools/etc/logrotate.d/frr
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#	vrrpd/vrrp_debug.c
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#	vtysh/.gitignore
#	vtysh/subdir.am
#	vtysh/vtysh.c
#	vtysh/vtysh.h
#	vtysh/vtysh_config.c
#	vtysh/vtysh_main.c
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#	zebra/zserv.c
#	zebra/zserv.h
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@raja-rajasekar @mergify
raja-rajasekar authored and mergify[bot] committed Dec 11, 2024
1 parent e11efcd commit f84dc9c
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28 changes: 28 additions & 0 deletions .clang-format
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@@ -1,5 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
# clang-format configuration file. Intended for clang-format >= 11.
<<<<<<< HEAD
=======
# If the version is changed also check that CI tool frrbot is updated.
>>>>>>> 9b0b9282d (bgpd: Fix bgp core with a possible Intf delete)
#
# For more information, see:
#
Expand Down Expand Up @@ -206,4 +210,28 @@ SpacesInSquareBrackets: false
Standard: Cpp03
TabWidth: 8
UseTab: Always
<<<<<<< HEAD
=======
WhitespaceSensitiveMacros:
- "DEFPY"
- "DEFPY_HIDDEN"
- "DEFPY_NOSH"
- "DEFPY_YANG"
- "DEFPY_YANG_HIDDEN"
- "DEFPY_YANG_NOSH"
- "DEFSH"
- "DEFSH_HIDDEN"
- "DEFUN"
- "DEFUN_HIDDEN"
- "DEFUN_NOSH"
- "DEFUN_YANG"
- "DEFUN_YANG_HIDDEN"
- "DEFUN_YANG_NOSH"
- "DEFUNSH"
- "DEFUNSH_HIDDEN"
- "ALIAS"
- "ALIAS_HIDDEN"
- "ALIAS_YANG"
- "ALIAS_DEPRECATED"
>>>>>>> 9b0b9282d (bgpd: Fix bgp core with a possible Intf delete)
...
5 changes: 5 additions & 0 deletions .git-blame-ignore-revs
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Expand Up @@ -20,3 +20,8 @@ c14777c6bfd0a446c85243d3a9835054a259c276
8451921b70044a2c1075e7ba391f095fabee2550
bf8d3d6aca3f20255a621ed1c148fd05b3a8ae5c
96941f80927ce31a41f7d1905717f099187be723
<<<<<<< HEAD
=======
# apply `black` python formatting for all tests/topotests
1a1c2a9f84d0ad1bdadc0cb47d6175d4ccc32544
>>>>>>> 9b0b9282d (bgpd: Fix bgp core with a possible Intf delete)
78 changes: 78 additions & 0 deletions .github/ISSUE_TEMPLATE/bug_report.yml
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name: Bug report
description: Report a bug in the FRRouting software
labels: triage
body:
- type: markdown
attributes:
value: >
**This form is only for reporting a bug in the FRRouting software.**
If you need help troubleshooting your configuration, have a problem
building or installing the software, or want to ask a question or
discuss the project, learn how to [connect with the FRRouting
community](https://frrouting.org/community/).
**Do not include sensitive information in this report.** IP addresses
should be masked (example: 192.XXX.XXX.32/24).
- type: textarea
id: description
attributes:
label: Description
description: Provide a clear and concise description of the bug.
validations:
required: true
- type: textarea
id: version
attributes:
label: Version
description: >
Run the `show version` command in the VTY shell, and provide the output
here. (If possible, test the current development version of FRRouting
for this bug.)
render: text
validations:
required: true
- type: textarea
id: how-to-reproduce
attributes:
label: How to reproduce
description: >
Give a list of steps that someone else can follow to observe
the bug. Be as descriptive as possible, including any relevant
configuration files and commands used. Topology diagrams are
helpful when the bug involves more than one router.
validations:
required: true
- type: textarea
id: expected-behavior
attributes:
label: Expected behavior
description: >
What do you expect to happen when following the steps above?
validations:
required: true
- type: textarea
id: actual-behavior
attributes:
label: Actual behavior
description: >
What actually happens when following the steps above? Include
screenshots, log file snippets, and/or platform routing tables
as appropriate. If a crash occurs, provide a backtrace.
validations:
required: true
- type: textarea
id: additional-context
attributes:
label: Additional context
description: >
Include any other relevant information about this bug here.
- type: checkboxes
id: checklist
attributes:
label: Checklist
options:
- label: I have searched the open issues for this bug.
required: true
- label: I have not included sensitive information in this report.
required: true
163 changes: 163 additions & 0 deletions .github/workflows/build-test-docker.yml
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name: build-test

on:
pull_request:
push:
branches:
- 'master'
- 'stable/**'

defaults:
run:
shell: bash

jobs:
build-docker:
name: Build the ubuntu 22.04 docker image
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 1
- name: Build docker image
run: |
docker build -t frr-ubuntu22 -f docker/ubuntu-ci/Dockerfile .
docker save --output /tmp/frr-ubuntu22.tar frr-ubuntu22
- name: Upload docker image artifact
uses: actions/upload-artifact@v4
with:
name: ubuntu-image
path: /tmp/frr-ubuntu22.tar
- name: Clear any previous results
# So if all jobs are re-run then all tests will be re-run
run: |
rm -rf test-results*
mkdir -p test-results
touch test-results/cleared-results.txt
- name: Save cleared previous results
uses: actions/upload-artifact@v4
with:
name: test-results
path: test-results
overwrite: true
- name: Cleanup
if: ${{ always() }}
run: rm -rf test-results* /tmp/frr-ubuntu22.tar

test-docker:
name: Test ubuntu docker image
needs: build-docker
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 1
- name: Fetch docker image artifact
uses: actions/download-artifact@v4
with:
name: ubuntu-image
path: /tmp
- name: Fetch previous results
if: ${{ github.run_attempt > 1 }}
uses: actions/download-artifact@v4
with:
name: test-results
path: test-results
- name: Run topotests
run: |
uname -a
MODPKGVER=$(uname -r)
sudo apt-get update -y
# Github is running old kernels but installing newer packages :(
sudo apt-get install -y linux-modules-extra-azure linux-modules-${MODPKGVER} linux-modules-extra-${MODPKGVER} python3-xmltodict
sudo modprobe vrf || true
sudo modprobe mpls-iptunnel
sudo modprobe mpls-router
docker load --input /tmp/frr-ubuntu22.tar
if ! grep CONFIG_IP_MROUTE_MULTIPLE_TABLES=y /boot/config*; then
ADD_DOCKER_ENV+="-e MROUTE_VRF_MISSING=1"
fi
echo "ADD_DOCKER_ENV: ${ADD_DOCKER_ENV}"
if [ -f test-results/topotests.xml ]; then
./tests/topotests/analyze.py -r test-results
ls -l test-results/topotests.xml
run_tests=$(./tests/topotests/analyze.py -r test-results | cut -f1 -d: | sort -u)
else
echo "No test results dir"
run_tests=""
fi
rm -rf test-results* /tmp/topotests
echo RUN_TESTS: $run_tests
if docker run --init -i --privileged --name frr-ubuntu-cont ${ADD_DOCKER_ENV} -v /lib/modules:/lib/modules frr-ubuntu22 \
bash -c 'cd ~/frr/tests/topotests ; sudo -E pytest -n$(($(nproc) * 5 / 2)) --dist=loadfile '$run_tests; then
echo "All tests passed."
exit 0
fi
# Grab the results from the container
if ! ./tests/topotests/analyze.py -Ar test-results -C frr-ubuntu-cont; then
if [ ! -d test-results ]; then
echo "ERROR: Basic failure in docker run, no test results directory available." >&2
exit 1;
fi
if [ ! -f test-results/topotests.xml ]; then
# In this case we may be missing topotests.xml
echo "ERROR: No topotests.xml available perhaps docker run aborted?" >&2
exit 1;
fi
echo "WARNING: analyyze.py returned error but grabbed results anyway." >&2
fi
# Save some information useful for debugging
cp /boot/config* test-results/
sysctl -a > test-results/sysctl.out 2> /dev/null
# Now get the failed tests (if any) from the archived results directory.
rerun_tests=$(./tests/topotests/analyze.py -r test-results | cut -f1 -d: | sort -u)
if [ -z "$rerun_tests" ]; then
echo "All tests passed during parallel run."
exit 0
fi
echo "ERROR: Some tests failed during parallel run, rerunning serially." >&2
echo RERUN_TESTS: $rerun_tests >&2
docker stop frr-ubuntu-cont
docker rm frr-ubuntu-cont
mv test-results test-results-initial
if docker run --init -i --privileged --name frr-ubuntu-cont ${ADD_DOCKER_ENV} -v /lib/modules:/lib/modules frr-ubuntu22 \
bash -c 'cd ~/frr/tests/topotests ; sudo -E pytest '$rerun_tests; then
echo "All rerun tests passed."
exit 0
fi
echo "Some rerun tests still failed."
exit 1
- name: Gather results
if: ${{ always() }}
run: |
if [ ! -d test-results ]; then
if ! ./tests/topotests/analyze.py -Ar test-results -C frr-ubuntu-cont; then
echo "ERROR: gathering results produced an error, perhaps due earlier run cancellation." >&2
fi
fi
- name: Upload test results
if: ${{ always() }}
uses: actions/upload-artifact@v4
with:
name: test-results
path: |
test-results
test-results-initial
overwrite: true
- name: Cleanup
if: ${{ always() }}
run: |
rm -rf test-results* /tmp/frr-ubuntu22.tar
docker stop frr-ubuntu-cont || true
docker rm frr-ubuntu-cont || true
5 changes: 5 additions & 0 deletions .github/workflows/conflicts.yml
View file
Original file line number Diff line number Diff line change
@@ -1,9 +1,14 @@
name: Add a conflict label if PR needs to rebase

on:
<<<<<<< HEAD
push:
pull_request_target:
types: [synchronize]
=======
pull_request_target:
types: [opened, reopened, synchronize]
>>>>>>> 9b0b9282d (bgpd: Fix bgp core with a possible Intf delete)

jobs:
conflicts:
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4 changes: 4 additions & 0 deletions .gitignore
View file
Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,10 @@
*.cg.dot
*.cg.svg
*.xref
<<<<<<< HEAD
=======
*_tsexpand.h
>>>>>>> 9b0b9282d (bgpd: Fix bgp core with a possible Intf delete)

### gcov outputs

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