diff options
Diffstat (limited to 'zebra/zebra_rib.c')
| -rw-r--r-- | zebra/zebra_rib.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c index d7f8bdab..fe29e816 100644 --- a/zebra/zebra_rib.c +++ b/zebra/zebra_rib.c @@ -305,6 +305,21 @@ nexthop_ipv6_ifindex_add (struct rib *rib, struct in6_addr *ipv6, } #endif /* HAVE_IPV6 */ +struct nexthop * +nexthop_blackhole_add (struct rib *rib) +{ + struct nexthop *nexthop; + + nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop)); + memset (nexthop, 0, sizeof (struct nexthop)); + nexthop->type = NEXTHOP_TYPE_BLACKHOLE; + SET_FLAG (rib->flags, ZEBRA_FLAG_BLACKHOLE); + + nexthop_add (rib, nexthop); + + return nexthop; +} + /* If force flag is not set, do not modify falgs at all for uninstall the route from FIB. */ int @@ -723,6 +738,9 @@ nexthop_active_check (struct route_node *rn, struct rib *rib, } break; #endif /* HAVE_IPV6 */ + case NEXTHOP_TYPE_BLACKHOLE: + SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE); + break; default: break; } @@ -1270,6 +1288,9 @@ static_install_ipv4 (struct prefix *p, struct static_ipv4 *si) case STATIC_IPV4_IFNAME: nexthop_ifname_add (rib, si->gate.ifname); break; + case STATIC_IPV4_BLACKHOLE: + nexthop_blackhole_add (rib); + break; } rib_process (rn, NULL); } @@ -1292,6 +1313,9 @@ static_install_ipv4 (struct prefix *p, struct static_ipv4 *si) case STATIC_IPV4_IFNAME: nexthop_ifname_add (rib, si->gate.ifname); break; + case STATIC_IPV4_BLACKHOLE: + nexthop_blackhole_add (rib); + break; } /* Save the flags of this static routes (reject, blackhole) */ @@ -1316,6 +1340,9 @@ static_ipv4_nexthop_same (struct nexthop *nexthop, struct static_ipv4 *si) && si->type == STATIC_IPV4_IFNAME && strcmp (nexthop->ifname, si->gate.ifname) == 0) return 1; + if (nexthop->type == NEXTHOP_TYPE_BLACKHOLE + && si->type == STATIC_IPV4_BLACKHOLE) + return 1; return 0;; } @@ -1406,6 +1433,8 @@ static_add_ipv4 (struct prefix *p, struct in_addr *gate, char *ifname, type = STATIC_IPV4_GATEWAY; if (ifname) type = STATIC_IPV4_IFNAME; + else + type = STATIC_IPV4_BLACKHOLE; /* Do nothing if there is a same static route. */ for (si = rn->info; si; si = si->next) @@ -1499,6 +1528,8 @@ static_delete_ipv4 (struct prefix *p, struct in_addr *gate, char *ifname, type = STATIC_IPV4_GATEWAY; else if (ifname) type = STATIC_IPV4_IFNAME; + else + type = STATIC_IPV4_BLACKHOLE; /* Find same static route is the tree */ for (si = rn->info; si; si = si->next) |