edc37a66e3
Subscriptions are planned to be used by modules such as route lookup engines. In that case that's the module task to properly unsibscribe before detach. However, the in-kernel customer - inet6 wants to track default route changes. To avoid having inet6 store per-fib subscriptions, handle automatic destruction internally. Differential Revision: https://reviews.freebsd.org/D25614
83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2020 Alexander V. Chernikov
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Contains various definitions shared between the parts of a routing subsystem.
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*
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* Header is not intended to be included by the code external to the
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* routing subsystem.
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*/
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#ifndef _NET_ROUTE_SHARED_H_
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#define _NET_ROUTE_SHARED_H_
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#include <vm/uma.h>
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#ifdef RTDEBUG
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#define DPRINTF(_fmt, ...) printf("%s: " _fmt "\n", __func__ , ## __VA_ARGS__)
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#else
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#define DPRINTF(_fmt, ...)
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#endif
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struct rib_head;
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/* Nexhops */
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void nhops_init(void);
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int nhops_init_rib(struct rib_head *rh);
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void nhops_destroy_rib(struct rib_head *rh);
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void nhop_ref_object(struct nhop_object *nh);
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int nhop_try_ref_object(struct nhop_object *nh);
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int nhop_ref_any(struct nhop_object *nh);
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void nhop_free_any(struct nhop_object *nh);
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void nhop_set_type(struct nhop_object *nh, enum nhop_type nh_type);
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void nhop_set_rtflags(struct nhop_object *nh, int rt_flags);
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int nhop_create_from_info(struct rib_head *rnh, struct rt_addrinfo *info,
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struct nhop_object **nh_ret);
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int nhop_create_from_nhop(struct rib_head *rnh, const struct nhop_object *nh_orig,
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struct rt_addrinfo *info, struct nhop_object **pnh_priv);
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void nhops_update_ifmtu(struct rib_head *rh, struct ifnet *ifp, uint32_t mtu);
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int nhops_dump_sysctl(struct rib_head *rh, struct sysctl_req *w);
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/* subscriptions */
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void rib_init_subscriptions(struct rib_head *rnh);
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void rib_destroy_subscriptions(struct rib_head *rnh);
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/* route */
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VNET_DECLARE(uma_zone_t, rtzone); /* Routing table UMA zone. */
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#define V_rtzone VNET(rtzone)
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struct rtentry *rt_unlinkrte(struct rib_head *rnh, struct rt_addrinfo *info,
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int *perror);
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#endif
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