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d9f5b2f50f
Add the functionality to parse new nexthop group messages from the kernel and insert them into the appropriate hash tables. Parsing is done at startup between interface and interface address lookup. Add functionality to parse changes to nexthops we already have. Add functionality to parse delete nexthop messages from the kernel and remove them from our table. Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/* Zebra Nexthop Group header.
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* Copyright (C) 2019 Cumulus Networks, Inc.
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* Donald Sharp
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* Stephen Worley
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*
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* This file is part of FRR.
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*
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* FRR is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* FRR is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FRR; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef __ZEBRA_NHG_H__
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#define __ZEBRA_NHG_H__
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#include "zebra/rib.h"
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#include "lib/nexthop_group.h"
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struct nhg_hash_entry {
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uint32_t id;
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vrf_id_t vrf_id;
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bool is_kernel_nh;
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struct nexthop_group nhg;
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uint32_t refcnt;
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uint32_t dplane_ref;
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uint32_t flags;
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/*
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* Is this nexthop group valid, ie all nexthops are fully resolved.
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* What is fully resolved? It's a nexthop that is either self contained
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* and correct( ie no recursive pointer ) or a nexthop that is recursively
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* resolved and correct.
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*/
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#define NEXTHOP_GROUP_VALID 0x1
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/*
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* Has this nexthop group been installed? At this point in time, this
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* means that the data-plane has been told about this nexthop group
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* and it's possible usage by a route entry.
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*/
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#define NEXTHOP_GROUP_INSTALLED 0x2
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};
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void zebra_nhg_init(void);
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void zebra_nhg_terminate(void);
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extern struct nhg_hash_entry *zebra_nhg_lookup_id(uint32_t id);
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extern int zebra_nhg_insert_id(struct nhg_hash_entry *nhe);
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extern uint32_t zebra_nhg_hash_key(const void *arg);
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extern uint32_t zebra_nhg_id_key(const void *arg);
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extern bool zebra_nhg_hash_equal(const void *arg1, const void *arg2);
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extern bool zebra_nhg_hash_id_equal(const void *arg1, const void *arg2);
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extern struct nhg_hash_entry *zebra_nhg_find(struct nexthop_group *nhg,
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vrf_id_t vrf_id, uint32_t id);
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extern struct nhg_hash_entry *zebra_nhg_find_id(uint32_t id,
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struct nexthop_group *nhg);
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void zebra_nhg_free(void *arg);
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void zebra_nhg_release(struct nhg_hash_entry *nhe);
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void zebra_nhg_decrement_ref(struct nhg_hash_entry *nhe);
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extern int nexthop_active_update(struct route_node *rn, struct route_entry *re);
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#endif
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