/* Status goes to Established. Send keepalive packet then make first update information. */ int bgp_establish (struct peer *peer) { struct bgp_notify *notify; afi_t afi; safi_t safi; /* Reset capability open status flag. */ if (! CHECK_FLAG (peer->sflags, PEER_STATUS_CAPABILITY_OPEN)) SET_FLAG (peer->sflags, PEER_STATUS_CAPABILITY_OPEN); /* Clear last notification data. */ notify = &peer->notify; if (notify->data) XFREE (MTYPE_TMP, notify->data); memset (notify, 0, sizeof (struct bgp_notify)); /* Clear start timer value to default. */ peer->v_start = BGP_INIT_START_TIMER; /* Increment established count. */ peer->established++; bgp_fsm_change_status (peer, Established); #ifdef HAVE_SNMP bgpTrapEstablished (peer); #endif /* HAVE_SNMP */ /* Reset uptime, send keepalive, send current table. */ bgp_uptime_reset (peer); /* Send route-refresh when ORF is enabled */ for (afi = AFI_IP ; afi < AFI_MAX ; afi++) for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++) if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_ADV)) { if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_RCV)) bgp_route_refresh_send (peer, afi, safi, ORF_TYPE_PREFIX, REFRESH_IMMEDIATE, 0); else if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_OLD_RCV)) bgp_route_refresh_send (peer, afi, safi, ORF_TYPE_PREFIX_OLD, REFRESH_IMMEDIATE, 0); } if (peer->v_keepalive) bgp_keepalive_send (peer); /* First update is deferred until ORF or ROUTE-REFRESH is received */ for (afi = AFI_IP ; afi < AFI_MAX ; afi++) for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++) if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_ADV)) if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_RCV) || CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_OLD_RCV)) SET_FLAG (peer->af_sflags[afi][safi], PEER_STATUS_ORF_WAIT_REFRESH); bgp_announce_route_all (peer); BGP_TIMER_ON (peer->t_routeadv, bgp_routeadv_timer, 1); return 0; }
/* Status goes to Established. Send keepalive packet then make first update information. */ static int bgp_establish (struct peer *peer) { struct bgp_notify *notify; afi_t afi; safi_t safi; int nsf_af_count = 0; /* Reset capability open status flag. */ if (! CHECK_FLAG (peer->sflags, PEER_STATUS_CAPABILITY_OPEN)) SET_FLAG (peer->sflags, PEER_STATUS_CAPABILITY_OPEN); /* Clear last notification data. */ notify = &peer->notify; if (notify->data) XFREE (MTYPE_TMP, notify->data); memset (notify, 0, sizeof (struct bgp_notify)); /* Clear start timer value to default. */ peer->v_start = BGP_INIT_START_TIMER; /* Increment established count. */ peer->established++; bgp_fsm_change_status (peer, Established); /* bgp log-neighbor-changes of neighbor Up */ if (bgp_flag_check (peer->bgp, BGP_FLAG_LOG_NEIGHBOR_CHANGES)) zlog_info ("%%ADJCHANGE: neighbor %s Up", peer->host); /* graceful restart */ UNSET_FLAG (peer->sflags, PEER_STATUS_NSF_WAIT); for (afi = AFI_IP ; afi < AFI_MAX ; afi++) for (safi = SAFI_UNICAST ; safi < SAFI_RESERVED_3 ; safi++) { if (peer->afc_nego[afi][safi] && CHECK_FLAG (peer->cap, PEER_CAP_RESTART_ADV) && CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_RESTART_AF_RCV)) { if (peer->nsf[afi][safi] && ! CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_RESTART_AF_PRESERVE_RCV)) bgp_clear_stale_route (peer, afi, safi); peer->nsf[afi][safi] = 1; nsf_af_count++; } else { if (peer->nsf[afi][safi]) bgp_clear_stale_route (peer, afi, safi); peer->nsf[afi][safi] = 0; } } if (nsf_af_count) SET_FLAG (peer->sflags, PEER_STATUS_NSF_MODE); else { UNSET_FLAG (peer->sflags, PEER_STATUS_NSF_MODE); if (peer->t_gr_stale) { BGP_TIMER_OFF (peer->t_gr_stale); if (BGP_DEBUG (events, EVENTS)) zlog_debug ("%s graceful restart stalepath timer stopped", peer->host); } } if (peer->t_gr_restart) { BGP_TIMER_OFF (peer->t_gr_restart); if (BGP_DEBUG (events, EVENTS)) zlog_debug ("%s graceful restart timer stopped", peer->host); } #ifdef HAVE_SNMP bgpTrapEstablished (peer); #endif /* HAVE_SNMP */ /* Reset uptime, send keepalive, send current table. */ peer->uptime = bgp_clock (); /* Send route-refresh when ORF is enabled */ for (afi = AFI_IP ; afi < AFI_MAX ; afi++) for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++) if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_ADV)) { if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_RCV)) bgp_route_refresh_send (peer, afi, safi, ORF_TYPE_PREFIX, REFRESH_IMMEDIATE, 0); else if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_OLD_RCV)) bgp_route_refresh_send (peer, afi, safi, ORF_TYPE_PREFIX_OLD, REFRESH_IMMEDIATE, 0); } if (peer->v_keepalive) bgp_keepalive_send (peer); /* First update is deferred until ORF or ROUTE-REFRESH is received */ for (afi = AFI_IP ; afi < AFI_MAX ; afi++) for (safi = SAFI_UNICAST ; safi < SAFI_MAX ; safi++) if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_RM_ADV)) if (CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_RCV) || CHECK_FLAG (peer->af_cap[afi][safi], PEER_CAP_ORF_PREFIX_SM_OLD_RCV)) SET_FLAG (peer->af_sflags[afi][safi], PEER_STATUS_ORF_WAIT_REFRESH); bgp_announce_route_all (peer); BGP_TIMER_ON (peer->t_routeadv, bgp_routeadv_timer, 1); return 0; }