diff options
Diffstat (limited to 'proto/ospf/rt.c')
| -rw-r--r-- | proto/ospf/rt.c | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c index c4340ee5..9d146ce2 100644 --- a/proto/ospf/rt.c +++ b/proto/ospf/rt.c @@ -557,7 +557,7 @@ spfa_process_rt(struct ospf_proto *p, struct ospf_area *oa, struct top_hash_entr /* Errata 2078 to RFC 5340 4.8.1 - skip links from non-routing nodes */ if (ospf_is_v3(p) && (act != oa->rt) && !(rt->options & OPT_R)) - break; + return; /* Now process Rt links */ for (lsa_walk_rt_init(p, act, &rtl), i = 0; lsa_walk_rt(&rtl); i++) @@ -688,6 +688,8 @@ ospf_rt_spfa(struct ospf_area *oa) if (oa->rt == NULL) return; + if (oa->rt->lsa.age == LSA_MAXAGE) + return; OSPF_TRACE(D_EVENTS, "Starting routing table calculation for area %R", oa->areaid); @@ -1087,8 +1089,7 @@ check_sum_net_lsa(struct ospf_proto *p, ort *nf) struct area_net *anet = NULL; struct ospf_area *anet_oa = NULL; - /* RT entry marked as area network */ - if (nf->fn.flags & OSPF_RT_PERSISTENT) + if (nf->area_net) { /* It is a default route for stub areas, handled entirely in ospf_rt_abr() */ if (nf->fn.pxlen == 0) @@ -1162,8 +1163,7 @@ check_nssa_lsa(struct ospf_proto *p, ort *nf) if (nf->external_rte) return; - /* RT entry marked as area network */ - if (nf->fn.flags & OSPF_RT_PERSISTENT) + if (nf->area_net) { /* Find that area network */ WALK_LIST(oa, p->area_list) @@ -1176,12 +1176,12 @@ check_nssa_lsa(struct ospf_proto *p, ort *nf) /* RFC 3103 3.2 (3) - originate the aggregated address range */ if (anet && anet->active && !anet->hidden && oa->translate) - ospf_originate_ext_lsa(p, NULL, nf, LSA_RTCALC, anet->metric, + ospf_originate_ext_lsa(p, NULL, nf, LSA_M_RTCALC, anet->metric, (anet->metric & LSA_EXT3_EBIT), IPA_NONE, anet->tag, 0); /* RFC 3103 3.2 (2) - originate the same network */ else if (decide_nssa_lsa(p, nf, &rt)) - ospf_originate_ext_lsa(p, NULL, nf, LSA_RTCALC, rt.metric, rt.ebit, rt.fwaddr, rt.tag, 0); + ospf_originate_ext_lsa(p, NULL, nf, LSA_M_RTCALC, rt.metric, rt.ebit, rt.fwaddr, rt.tag, 0); } /* RFC 2328 16.7. p2 - find new/lost vlink endpoints */ @@ -1273,7 +1273,7 @@ ospf_rt_abr1(struct ospf_proto *p) /* Get a RT entry and mark it to know that it is an area network */ ort *nfi = (ort *) fib_get(&p->rtf, &anet->fn.prefix, anet->fn.pxlen); - nfi->fn.flags |= OSPF_RT_PERSISTENT; /* mark persistent, to have stable UID */ + nfi->area_net = 1; /* 16.2. (3) */ if (nfi->n.type == RTS_OSPF_IA) @@ -1289,7 +1289,7 @@ ospf_rt_abr1(struct ospf_proto *p) ip_addr addr = IPA_NONE; default_nf = (ort *) fib_get(&p->rtf, &addr, 0); - default_nf->fn.flags |= OSPF_RT_PERSISTENT; /* keep persistent */ + default_nf->area_net = 1; struct ospf_area *oa; WALK_LIST(oa, p->area_list) @@ -1309,7 +1309,7 @@ ospf_rt_abr1(struct ospf_proto *p) */ if (oa_is_nssa(oa) && oa->ac->default_nssa) - ospf_originate_ext_lsa(p, oa, default_nf, LSA_RTCALC, oa->ac->default_cost, + ospf_originate_ext_lsa(p, oa, default_nf, LSA_M_RTCALC, oa->ac->default_cost, (oa->ac->default_cost & LSA_EXT3_EBIT), IPA_NONE, 0, 0); /* RFC 2328 16.4. (3) - precompute preferred ASBR entries */ @@ -1348,7 +1348,7 @@ translator_timer_hook(timer *timer) return; oa->translate = TRANS_OFF; - schedule_rtcalc(oa->po); + ospf_schedule_rtcalc(oa->po); } static void @@ -1431,7 +1431,7 @@ ospf_rt_abr2(struct ospf_proto *p) /* Get a RT entry and mark it to know that it is an area network */ nf2 = (ort *) fib_get(&p->rtf, &anet->fn.prefix, anet->fn.pxlen); - nf2->fn.flags |= OSPF_RT_PERSISTENT; /* keep persistent */ + nf2->area_net = 1; } u32 metric = (nf->n.type == RTS_OSPF_EXT1) ? @@ -1634,7 +1634,7 @@ ospf_rt_reset(struct ospf_proto *p) FIB_WALK(&p->rtf, nftmp) { ri = (ort *) nftmp; - ri->fn.flags &= ~OSPF_RT_PERSISTENT; + ri->area_net = 0; reset_ri(ri); } FIB_WALK_END; @@ -1647,8 +1647,8 @@ ospf_rt_reset(struct ospf_proto *p) en->nhs = NULL; en->lb = IPA_NONE; - if (en->rtcalc == LSA_RTCALC) - en->rtcalc = LSA_STALE; + if (en->mode == LSA_M_RTCALC) + en->mode = LSA_M_STALE; } WALK_LIST(oa, p->area_list) @@ -1683,14 +1683,9 @@ ospf_rt_reset(struct ospf_proto *p) } } -static void -ospf_flush_stale(struct ospf_proto *p) -{ -} - /** * ospf_rt_spf - calculate internal routes - * @p: OSPF protocol + * @p: OSPF protocol instance * * Calculation of internal paths in an area is described in 16.1 of RFC 2328. * It's based on Dijkstra's shortest path tree algorithms. @@ -2064,8 +2059,8 @@ again1: rte_update(&p->p, ne, NULL); } - /* Remove unused rt entry. Entries with any flags are persistent. */ - if (!nf->n.type && !nf->external_rte) // XXXX + /* Remove unused rt entry, some special entries are persistent */ + if (!nf->n.type && !nf->external_rte && !nf->area_net) { FIB_ITERATE_PUT(&fit, nftmp); fib_delete(fib, nftmp); @@ -2096,6 +2091,6 @@ again2: /* Cleanup stale LSAs */ WALK_SLIST(en, p->lsal) - if (en->rtcalc == LSA_STALE) + if (en->mode == LSA_M_STALE) ospf_flush_lsa(p, en); } |