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/*
*
* 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
*/
/*
* File: rfapi_rib.h
* Purpose: per-nve rib
*/
#ifndef QUAGGA_HGP_RFAPI_RIB_H
#define QUAGGA_HGP_RFAPI_RIB_H
/*
* Key for indexing RIB and Pending RIB skiplists. For L3 RIBs,
* the VN address is sufficient because it represents the actual next hop.
*
* For L2 RIBs, it is possible to have multiple routes to a given L2
* prefix via a given VN address, but each route having a unique aux_prefix.
*/
struct rfapi_rib_key {
struct prefix vn;
struct prefix_rd rd;
/*
* for L2 routes: optional IP addr
* .family == 0 means "none"
*/
struct prefix aux_prefix;
};
#include "rfapi.h"
/*
* RFAPI Advertisement Data Block
*
* Holds NVE prefix advertisement information
*/
struct rfapi_adb {
union {
struct {
struct prefix prefix_ip;
struct prefix_rd prd;
struct prefix prefix_eth;
} s; /* mainly for legacy use */
struct rfapi_rib_key key;
} u;
uint32_t lifetime;
uint8_t cost;
struct rfapi_l2address_option l2o;
};
struct rfapi_info {
struct rfapi_rib_key rk; /* NVE VN addr + aux addr */
struct prefix un;
uint8_t cost;
uint32_t lifetime;
time_t last_sent_time;
uint32_t rsp_counter; /* dedup initial responses */
struct bgp_tea_options *tea_options;
struct rfapi_un_option *un_options;
struct rfapi_vn_option *vn_options;
struct thread *timer;
};
/*
* Work item for updated responses queue
*/
struct rfapi_updated_responses_queue {
struct rfapi_descriptor *rfd;
afi_t afi;
};
extern void rfapiRibClear(struct rfapi_descriptor *rfd);
extern void rfapiRibFree(struct rfapi_descriptor *rfd);
extern void rfapiRibUpdatePendingNode(struct bgp *bgp,
struct rfapi_descriptor *rfd,
struct rfapi_import_table *it,
struct agg_node *it_node,
uint32_t lifetime);
extern void rfapiRibUpdatePendingNodeSubtree(struct bgp *bgp,
struct rfapi_descriptor *rfd,
struct rfapi_import_table *it,
struct agg_node *it_node,
struct agg_node *omit_subtree,
uint32_t lifetime);
extern int rfapiRibPreloadBi(struct agg_node *rfd_rib_node,
struct prefix *pfx_vn, struct prefix *pfx_un,
uint32_t lifetime, struct bgp_path_info *bpi);
extern struct rfapi_next_hop_entry *
rfapiRibPreload(struct bgp *bgp, struct rfapi_descriptor *rfd,
struct rfapi_next_hop_entry *response, int use_eth_resolution);
extern void rfapiRibPendingDeleteRoute(struct bgp *bgp,
struct rfapi_import_table *it, afi_t afi,
struct agg_node *it_node);
extern void rfapiRibShowResponsesSummary(void *stream);
extern void rfapiRibShowResponsesSummaryClear(void);
extern void rfapiRibShowResponses(void *stream, struct prefix *pfx_match,
int show_removed);
extern int rfapiRibFTDFilterRecentPrefix(
struct rfapi_descriptor *rfd,
struct agg_node *it_rn, /* import table node */
struct prefix *pfx_target_original); /* query target */
extern void rfapiFreeRfapiUnOptionChain(struct rfapi_un_option *p);
extern void rfapiFreeRfapiVnOptionChain(struct rfapi_vn_option *p);
extern void
rfapiRibCheckCounts(int checkstats, /* validate rfd & global counts */
unsigned int offset); /* number of ri's held separately */
/* enable for debugging; disable for performance */
#if 0
#define RFAPI_RIB_CHECK_COUNTS(checkstats, offset) rfapiRibCheckCounts(checkstats, offset)
#else
#define RFAPI_RIB_CHECK_COUNTS(checkstats, offset)
#endif
extern void rfapi_rib_key_init(struct prefix *prefix, /* may be NULL */
struct prefix_rd *rd, /* may be NULL */
struct prefix *aux, /* may be NULL */
struct rfapi_rib_key *rk);
extern int rfapi_rib_key_cmp(const void *k1, const void *k2);
extern void rfapiAdbFree(struct rfapi_adb *adb);
#endif /* QUAGGA_HGP_RFAPI_RIB_H */
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