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bgpd: fix segfault with '[no] bgp network import-check'

Browse Source 
These commands were causing bgpd to crash if a static VPN route was
configured.

While here, fix a bug in bgp_static_add() and bgp_static_delete().

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2017-05-12 11:01:02 -03:00
parent 92a8bd6e7a
commit 7c7f4284cf
1 changed files with 19 additions and 4 deletions
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23
bgpd/bgp_route.c
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@ -4314,7 +4314,7 @@ bgp_static_add (struct bgp *bgp)
for (rm = bgp_table_top (table); rm; rm = bgp_route_next (rm))
{
bgp_static = rn->info;
bgp_static = rm->info;
bgp_static_update_safi (bgp, &rm->p, bgp_static, afi, safi);
}
}
@ -4348,7 +4348,7 @@ bgp_static_delete (struct bgp *bgp)
for (rm = bgp_table_top (table); rm; rm = bgp_route_next (rm))
{
bgp_static = rn->info;
bgp_static = rm->info;
bgp_static_withdraw_safi (bgp, &rm->p,
AFI_IP, safi,
(struct prefix_rd *)&rn->p,
@ -4375,6 +4375,8 @@ bgp_static_redo_import_check (struct bgp *bgp)
afi_t afi;
safi_t safi;
struct bgp_node *rn;
struct bgp_node *rm;
struct bgp_table *table;
struct bgp_static *bgp_static;
/* Use this flag to force reprocessing of the route */
@ -4384,8 +4386,21 @@ bgp_static_redo_import_check (struct bgp *bgp)
for (rn = bgp_table_top (bgp->route[afi][safi]); rn; rn = bgp_route_next (rn))
if (rn->info != NULL)
{
bgp_static = rn->info;
bgp_static_update (bgp, &rn->p, bgp_static, afi, safi);
if ((safi == SAFI_MPLS_VPN) || (safi == SAFI_ENCAP) || (safi == SAFI_EVPN))
{
table = rn->info;
for (rm = bgp_table_top (table); rm; rm = bgp_route_next (rm))
{
bgp_static = rm->info;
bgp_static_update_safi (bgp, &rm->p, bgp_static, afi, safi);
}
}
else
{
bgp_static = rn->info;
bgp_static_update (bgp, &rn->p, bgp_static, afi, safi);
}
}
bgp_flag_unset(bgp, BGP_FLAG_FORCE_STATIC_PROCESS);
}