forked from Mirror/frr
1629c05924
While here, also make "VPN SAFI clear" test wait for clear result
(tests/topotests/bgp_rfapi_basic_sanity{,_config2})
Original RFAPI code relied on the frr timer system to remember
various allocations that were supposed to be freed at future times
rather than manage a parallel database. However, if bgpd is terminated
before the times expire, those pending allocations are marked as
memory leaks, even though they wouldn't be leaks under normal operation.
This change adds some hash tables to track these outstanding
allocations that are associated with pending timers, and uses
those tables to free the allocations when bgpd exits.
Signed-off-by: G. Paul Ziemba <paulz@labn.net>
145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*
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* Copyright 2009-2016, LabN Consulting, L.L.C.
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*
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*/
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/*
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* File: rfapi_rib.h
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* Purpose: per-nve rib
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*/
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#ifndef QUAGGA_HGP_RFAPI_RIB_H
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#define QUAGGA_HGP_RFAPI_RIB_H
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/*
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* Key for indexing RIB and Pending RIB skiplists. For L3 RIBs,
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* the VN address is sufficient because it represents the actual next hop.
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*
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* For L2 RIBs, it is possible to have multiple routes to a given L2
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* prefix via a given VN address, but each route having a unique aux_prefix.
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*/
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struct rfapi_rib_key {
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struct prefix vn;
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struct prefix_rd rd;
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/*
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* for L2 routes: optional IP addr
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* .family == 0 means "none"
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*/
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struct prefix aux_prefix;
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};
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#include "rfapi.h"
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/*
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* RFAPI Advertisement Data Block
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*
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* Holds NVE prefix advertisement information
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*/
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struct rfapi_adb {
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union {
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struct {
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struct prefix prefix_ip;
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struct prefix_rd prd;
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struct prefix prefix_eth;
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} s; /* mainly for legacy use */
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struct rfapi_rib_key key;
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} u;
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uint32_t lifetime;
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uint8_t cost;
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struct rfapi_l2address_option l2o;
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};
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struct rfapi_info {
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struct rfapi_rib_key rk; /* NVE VN addr + aux addr */
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struct prefix un;
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uint8_t cost;
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uint32_t lifetime;
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time_t last_sent_time;
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uint32_t rsp_counter; /* dedup initial responses */
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struct bgp_tea_options *tea_options;
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struct rfapi_un_option *un_options;
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struct rfapi_vn_option *vn_options;
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struct event *timer;
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};
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/*
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* Work item for updated responses queue
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*/
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struct rfapi_updated_responses_queue {
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struct rfapi_descriptor *rfd;
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afi_t afi;
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};
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extern void rfapiRibClear(struct rfapi_descriptor *rfd);
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extern void rfapiRibFree(struct rfapi_descriptor *rfd);
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extern void rfapiRibUpdatePendingNode(struct bgp *bgp,
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struct rfapi_descriptor *rfd,
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struct rfapi_import_table *it,
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struct agg_node *it_node,
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uint32_t lifetime);
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extern void rfapiRibUpdatePendingNodeSubtree(struct bgp *bgp,
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struct rfapi_descriptor *rfd,
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struct rfapi_import_table *it,
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struct agg_node *it_node,
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struct agg_node *omit_subtree,
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uint32_t lifetime);
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extern int rfapiRibPreloadBi(struct agg_node *rfd_rib_node,
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struct prefix *pfx_vn, struct prefix *pfx_un,
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uint32_t lifetime, struct bgp_path_info *bpi);
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extern struct rfapi_next_hop_entry *
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rfapiRibPreload(struct bgp *bgp, struct rfapi_descriptor *rfd,
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struct rfapi_next_hop_entry *response, int use_eth_resolution);
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extern void rfapiRibPendingDeleteRoute(struct bgp *bgp,
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struct rfapi_import_table *it, afi_t afi,
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struct agg_node *it_node);
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extern void rfapiRibShowResponsesSummary(void *stream);
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extern void rfapiRibShowResponsesSummaryClear(void);
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extern void rfapiRibShowResponses(void *stream, struct prefix *pfx_match,
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int show_removed);
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extern int rfapiRibFTDFilterRecentPrefix(
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struct rfapi_descriptor *rfd,
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struct agg_node *it_rn, /* import table node */
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struct prefix *pfx_target_original); /* query target */
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extern void rfapiFreeRfapiUnOptionChain(struct rfapi_un_option *p);
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extern void rfapiFreeRfapiVnOptionChain(struct rfapi_vn_option *p);
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extern void
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rfapiRibCheckCounts(int checkstats, /* validate rfd & global counts */
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unsigned int offset); /* number of ri's held separately */
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/* enable for debugging; disable for performance */
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#if 0
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#define RFAPI_RIB_CHECK_COUNTS(checkstats, offset) rfapiRibCheckCounts(checkstats, offset)
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#else
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#define RFAPI_RIB_CHECK_COUNTS(checkstats, offset)
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#endif
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extern void rfapi_rib_key_init(struct prefix *prefix, /* may be NULL */
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struct prefix_rd *rd, /* may be NULL */
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struct prefix *aux, /* may be NULL */
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struct rfapi_rib_key *rk);
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extern int rfapi_rib_key_cmp(const void *k1, const void *k2);
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extern void rfapiAdbFree(struct rfapi_adb *adb);
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extern void rfapi_rib_init(void);
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extern void rfapi_rib_terminate(void);
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#endif /* QUAGGA_HGP_RFAPI_RIB_H */
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