bgpd: fix bgp_node locking issues
* bgpd: Connected table locks were being locked but not unlocked, such that
eventually a lock would exceed 2^31 and become negative, thus triggering
an assert later on.
* bgp_main.c: (bgp_exit) delete connected elements along with ifp's.
* bgp_nexthop.c: (bgp_nexthop_lookup{,_ipv6}) add missing unlocks
(bgp_multiaccess_check_v4) ditto
(bgp_connected_{add,delete}) Use a distinct memtype for bgp_connected_ref.
(bgp_scan_finish) reset the nexthop cache to clean it up when bgpd exits
* bgp_route.c: fix missing bgp_node unlocks
* lib/memtype.c: (memory_list_bgp) add MTYPE_BGP_CONN
* testing: has been tested for almost 2 months now.
diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c
index 60e9610..ed98ac0 100644
--- a/bgpd/bgp_route.c
+++ b/bgpd/bgp_route.c
@@ -6561,7 +6561,10 @@
if ((rm = bgp_node_match (table, &match)) != NULL)
{
if (prefix_check && rm->p.prefixlen != match.prefixlen)
- continue;
+ {
+ bgp_unlock_node (rm);
+ continue;
+ }
for (ri = rm->info; ri; ri = ri->next)
{
@@ -6575,6 +6578,8 @@
display++;
route_vty_out_detail (vty, bgp, &rm->p, ri, AFI_IP, SAFI_MPLS_VPN);
}
+
+ bgp_unlock_node (rm);
}
}
}
@@ -6598,6 +6603,8 @@
route_vty_out_detail (vty, bgp, &rn->p, ri, afi, safi);
}
}
+
+ bgp_unlock_node (rn);
}
}
@@ -11355,41 +11362,49 @@
if ((table = rn->info) != NULL)
if ((rm = bgp_node_match (table, &match)) != NULL)
- if (! prefix_check || rm->p.prefixlen == match.prefixlen)
- {
- ri = rm->info;
- while (ri)
- {
- if (ri->extra && ri->extra->damp_info)
- {
- ri_temp = ri->next;
- bgp_damp_info_free (ri->extra->damp_info, 1);
- ri = ri_temp;
- }
- else
- ri = ri->next;
- }
- }
+ {
+ if (! prefix_check || rm->p.prefixlen == match.prefixlen)
+ {
+ ri = rm->info;
+ while (ri)
+ {
+ if (ri->extra && ri->extra->damp_info)
+ {
+ ri_temp = ri->next;
+ bgp_damp_info_free (ri->extra->damp_info, 1);
+ ri = ri_temp;
+ }
+ else
+ ri = ri->next;
+ }
+ }
+
+ bgp_unlock_node (rm);
+ }
}
}
else
{
if ((rn = bgp_node_match (bgp->rib[afi][safi], &match)) != NULL)
- if (! prefix_check || rn->p.prefixlen == match.prefixlen)
- {
- ri = rn->info;
- while (ri)
- {
- if (ri->extra && ri->extra->damp_info)
- {
- ri_temp = ri->next;
- bgp_damp_info_free (ri->extra->damp_info, 1);
- ri = ri_temp;
- }
- else
- ri = ri->next;
- }
- }
+ {
+ if (! prefix_check || rn->p.prefixlen == match.prefixlen)
+ {
+ ri = rn->info;
+ while (ri)
+ {
+ if (ri->extra && ri->extra->damp_info)
+ {
+ ri_temp = ri->next;
+ bgp_damp_info_free (ri->extra->damp_info, 1);
+ ri = ri_temp;
+ }
+ else
+ ri = ri->next;
+ }
+ }
+
+ bgp_unlock_node (rn);
+ }
}
return CMD_SUCCESS;