diff options
Diffstat (limited to 'ospf6d/ospf6_flood.c')
| -rw-r--r-- | ospf6d/ospf6_flood.c | 80 |
1 files changed, 79 insertions, 1 deletions
diff --git a/ospf6d/ospf6_flood.c b/ospf6d/ospf6_flood.c index 3d52597161..f13ed3e3bb 100644 --- a/ospf6d/ospf6_flood.c +++ b/ospf6d/ospf6_flood.c @@ -41,6 +41,7 @@ #include "ospf6_flood.h" #include "ospf6_nssa.h" +#include "ospf6_gr.h" unsigned char conf_debug_ospf6_flooding; @@ -169,9 +170,26 @@ void ospf6_remove_id_from_external_id_table(struct ospf6 *ospf6, void ospf6_external_lsa_purge(struct ospf6 *ospf6, struct ospf6_lsa *lsa) { + uint32_t id = lsa->header->id; + struct ospf6_area *oa; + struct listnode *lnode; + ospf6_lsa_purge(lsa); - ospf6_remove_id_from_external_id_table(ospf6, lsa->header->id); + ospf6_remove_id_from_external_id_table(ospf6, id); + + /* Delete the corresponding NSSA LSA */ + for (ALL_LIST_ELEMENTS_RO(ospf6->area_list, lnode, oa)) { + lsa = ospf6_lsdb_lookup(htons(OSPF6_LSTYPE_TYPE_7), id, + ospf6->router_id, oa->lsdb); + if (lsa) { + if (IS_OSPF6_DEBUG_NSSA) + zlog_debug("withdraw type 7 lsa, LS ID: %u", + htonl(id)); + + ospf6_lsa_purge(lsa); + } + } } void ospf6_lsa_purge(struct ospf6_lsa *lsa) @@ -306,6 +324,22 @@ void ospf6_install_lsa(struct ospf6_lsa *lsa) /* actually install */ lsa->installed = now; + + /* Topo change handling */ + if (CHECK_LSA_TOPO_CHG_ELIGIBLE(ntohs(lsa->header->type))) { + + /* check if it is new lsa ? or existing lsa got modified ?*/ + if (!old || OSPF6_LSA_IS_CHANGED(old, lsa)) { + struct ospf6 *ospf6; + + ospf6 = ospf6_get_by_lsdb(lsa); + + assert(ospf6); + + ospf6_helper_handle_topo_chg(ospf6, lsa); + } + } + ospf6_lsdb_add(lsa, lsa->lsdb); if (ntohs(lsa->header->type) == OSPF6_LSTYPE_TYPE_7) { @@ -999,6 +1033,50 @@ void ospf6_receive_lsa(struct ospf6_neighbor *from, != from->ospf6_if->area->ospf6->router_id) ospf6_flood(from, new); + /* Received Grace-LSA */ + if (IS_GRACE_LSA(new)) { + struct ospf6 *ospf6; + + ospf6 = ospf6_get_by_lsdb(new); + + assert(ospf6); + + if (OSPF6_LSA_IS_MAXAGE(new)) { + + if (IS_DEBUG_OSPF6_GR) + zlog_debug( + "%s, Received a maxage GraceLSA from router %pI4", + __func__, + &new->header->adv_router); + if (old) { + ospf6_process_maxage_grace_lsa( + ospf6, new, from); + } else { + if (IS_DEBUG_OSPF6_GR) + zlog_debug( + "%s, GraceLSA doesn't exist in lsdb, so discarding GraceLSA", + __func__); + return; + } + } else { + + if (IS_DEBUG_OSPF6_GR) + zlog_debug( + "%s, Received a GraceLSA from router %pI4", + __func__, + &new->header->adv_router); + + if (ospf6_process_grace_lsa(ospf6, new, from) + == OSPF6_GR_NOT_HELPER) { + if (IS_DEBUG_OSPF6_GR) + zlog_debug( + "%s, Not moving to HELPER role, So dicarding GraceLSA", + __func__); + return; + } + } + } + /* (d), installing lsdb, which may cause routing table calculation (replacing database copy) */ ospf6_install_lsa(new); |