diff options
Diffstat (limited to 'bgpd/rfapi/vnc_export_table.c')
| -rw-r--r-- | bgpd/rfapi/vnc_export_table.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/bgpd/rfapi/vnc_export_table.c b/bgpd/rfapi/vnc_export_table.c new file mode 100644 index 0000000..743576d --- /dev/null +++ b/bgpd/rfapi/vnc_export_table.c @@ -0,0 +1,192 @@ +/* + * + * Copyright 2009-2016, LabN Consulting, L.L.C. + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#include "lib/zebra.h" +#include "lib/prefix.h" +#include "lib/agg_table.h" +#include "lib/memory.h" +#include "lib/vty.h" + +#include "bgpd/bgpd.h" +#include "bgpd/bgp_route.h" + +#include "bgpd/rfapi/vnc_export_table.h" +#include "bgpd/rfapi/rfapi_private.h" +#include "bgpd/rfapi/rfapi_import.h" +#include "bgpd/rfapi/vnc_debug.h" + +struct agg_node *vnc_etn_get(struct bgp *bgp, vnc_export_type_t type, + const struct prefix *p) +{ + struct agg_table *t = NULL; + struct agg_node *rn = NULL; + afi_t afi; + + if (!bgp || !bgp->rfapi) + return NULL; + + afi = family2afi(p->family); + assert(afi == AFI_IP || afi == AFI_IP6); + + switch (type) { + case EXPORT_TYPE_BGP: + if (!bgp->rfapi->rt_export_bgp[afi]) + bgp->rfapi->rt_export_bgp[afi] = agg_table_init(); + t = bgp->rfapi->rt_export_bgp[afi]; + break; + + case EXPORT_TYPE_ZEBRA: + if (!bgp->rfapi->rt_export_zebra[afi]) + bgp->rfapi->rt_export_zebra[afi] = agg_table_init(); + t = bgp->rfapi->rt_export_zebra[afi]; + break; + } + + if (t) + rn = agg_node_get(t, p); + return rn; +} + +struct agg_node *vnc_etn_lookup(struct bgp *bgp, vnc_export_type_t type, + const struct prefix *p) +{ + struct agg_table *t = NULL; + struct agg_node *rn = NULL; + afi_t afi; + + if (!bgp || !bgp->rfapi) + return NULL; + + afi = family2afi(p->family); + assert(afi == AFI_IP || afi == AFI_IP6); + + switch (type) { + case EXPORT_TYPE_BGP: + if (!bgp->rfapi->rt_export_bgp[afi]) + bgp->rfapi->rt_export_bgp[afi] = agg_table_init(); + t = bgp->rfapi->rt_export_bgp[afi]; + break; + + case EXPORT_TYPE_ZEBRA: + if (!bgp->rfapi->rt_export_zebra[afi]) + bgp->rfapi->rt_export_zebra[afi] = agg_table_init(); + t = bgp->rfapi->rt_export_zebra[afi]; + break; + } + + if (t) + rn = agg_node_lookup(t, p); + return rn; +} + +struct vnc_export_info *vnc_eti_get(struct bgp *bgp, vnc_export_type_t etype, + const struct prefix *p, struct peer *peer, + uint8_t type, uint8_t subtype) +{ + struct agg_node *etn; + struct vnc_export_info *eti; + + etn = vnc_etn_get(bgp, etype, p); + assert(etn); + + for (eti = etn->info; eti; eti = eti->next) { + if (peer == eti->peer && type == eti->type + && subtype == eti->subtype) { + + break; + } + } + + if (eti) { + agg_unlock_node(etn); + } else { + eti = XCALLOC(MTYPE_RFAPI_ETI, sizeof(struct vnc_export_info)); + eti->node = etn; + eti->peer = peer; + peer_lock(peer); + eti->type = type; + eti->subtype = subtype; + eti->next = etn->info; + etn->info = eti; + } + + return eti; +} + +void vnc_eti_delete(struct vnc_export_info *goner) +{ + struct agg_node *etn; + struct vnc_export_info *eti; + struct vnc_export_info *eti_prev = NULL; + + etn = goner->node; + + for (eti = etn->info; eti; eti_prev = eti, eti = eti->next) { + if (eti == goner) + break; + } + + if (!eti) { + vnc_zlog_debug_verbose("%s: COULDN'T FIND ETI", __func__); + return; + } + + if (eti_prev) { + eti_prev->next = goner->next; + } else { + etn->info = goner->next; + } + + peer_unlock(eti->peer); + goner->node = NULL; + XFREE(MTYPE_RFAPI_ETI, goner); + + agg_unlock_node(etn); +} + +struct vnc_export_info *vnc_eti_checktimer(struct bgp *bgp, + vnc_export_type_t etype, + const struct prefix *p, + struct peer *peer, uint8_t type, + uint8_t subtype) +{ + struct agg_node *etn; + struct vnc_export_info *eti; + + etn = vnc_etn_lookup(bgp, etype, p); + if (!etn) + return NULL; + + for (eti = etn->info; eti; eti = eti->next) { + if (peer == eti->peer && type == eti->type + && subtype == eti->subtype) { + + break; + } + } + + agg_unlock_node(etn); + + if (eti && eti->timer) + return eti; + + return NULL; +} |