diff options
Diffstat (limited to 'pimd/pim_nht.c')
| -rw-r--r-- | pimd/pim_nht.c | 47 |
1 files changed, 40 insertions, 7 deletions
diff --git a/pimd/pim_nht.c b/pimd/pim_nht.c index 32cdf4bf82..57dcff3b47 100644 --- a/pimd/pim_nht.c +++ b/pimd/pim_nht.c @@ -161,18 +161,27 @@ void pim_nht_bsr_add(struct pim_instance *pim, pim_addr addr) pnc->bsr_count++; } +bool pim_nht_candrp_add(struct pim_instance *pim, pim_addr addr) +{ + struct pim_nexthop_cache *pnc; + + pnc = pim_nht_get(pim, addr); + + pnc->candrp_count++; + return CHECK_FLAG(pnc->flags, PIM_NEXTHOP_VALID); +} + static void pim_nht_drop_maybe(struct pim_instance *pim, struct pim_nexthop_cache *pnc) { if (PIM_DEBUG_PIM_NHT) - zlog_debug( - "%s: NHT %pPA(%s) rp_list count:%d upstream count:%ld BSR count:%u", - __func__, &pnc->rpf.rpf_addr, pim->vrf->name, - pnc->rp_list->count, pnc->upstream_hash->count, - pnc->bsr_count); + zlog_debug("%s: NHT %pPA(%s) rp_list count:%d upstream count:%ld BSR count:%u Cand-RP count:%u", + __func__, &pnc->rpf.rpf_addr, pim->vrf->name, + pnc->rp_list->count, pnc->upstream_hash->count, + pnc->bsr_count, pnc->candrp_count); - if (pnc->rp_list->count == 0 && pnc->upstream_hash->count == 0 - && pnc->bsr_count == 0) { + if (pnc->rp_list->count == 0 && pnc->upstream_hash->count == 0 && + pnc->bsr_count == 0 && pnc->candrp_count == 0) { struct zclient *zclient = pim_zebra_zclient_get(); pim_sendmsg_zebra_rnh(pim, zclient, pnc, @@ -258,6 +267,27 @@ void pim_nht_bsr_del(struct pim_instance *pim, pim_addr addr) pim_nht_drop_maybe(pim, pnc); } +void pim_nht_candrp_del(struct pim_instance *pim, pim_addr addr) +{ + struct pim_nexthop_cache *pnc = NULL; + struct pim_nexthop_cache lookup; + + lookup.rpf.rpf_addr = addr; + + pnc = hash_lookup(pim->rpf_hash, &lookup); + + if (!pnc) { + zlog_warn("attempting to delete nonexistent NHT C-RP entry %pPA", + &addr); + return; + } + + assertf(pnc->candrp_count > 0, "addr=%pPA", &addr); + pnc->candrp_count--; + + pim_nht_drop_maybe(pim, pnc); +} + bool pim_nht_bsr_rpf_check(struct pim_instance *pim, pim_addr bsr_addr, struct interface *src_ifp, pim_addr src_ip) { @@ -900,6 +930,9 @@ void pim_nexthop_update(struct vrf *vrf, struct prefix *match, pim_update_rp_nh(pim, pnc); if (pnc->upstream_hash->count) pim_update_upstream_nh(pim, pnc); + + if (pnc->candrp_count) + pim_crp_nht_update(pim, pnc); } int pim_ecmp_nexthop_lookup(struct pim_instance *pim, |