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sys/net/route/shared.h
- This file was added.
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/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
* | |||||
* Copyright (c) 2020 Alexander V. Chernikov | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
/* | |||||
* Contains various definitions shared between the parts of a routing subsystem. | |||||
* | |||||
* Header is not intended to be included by the code external to the | |||||
* routing subsystem. | |||||
*/ | |||||
#ifndef _NET_ROUTE_SHARED_H_ | |||||
#define _NET_ROUTE_SHARED_H_ | |||||
#ifdef INVARIANTS | |||||
#define NET_EPOCH_ASSERT_INVARIANTS() NET_EPOCH_ASSERT() | |||||
#else | |||||
#define NET_EPOCH_ASSERT_INVARIANTS() | |||||
#endif | |||||
#ifdef RTDEBUG | |||||
#define DPRINTF(_fmt, ...) printf("%s: " _fmt "\n", __func__ , ## __VA_ARGS__) | |||||
#else | |||||
#define DPRINTF(_fmt, ...) | |||||
#endif | |||||
struct rib_head; | |||||
/* Shared across nexthops and nexthop groups */ | |||||
MALLOC_DECLARE(M_NHOP); | |||||
/* Nexhops */ | |||||
int nhops_init(struct rib_head *rh); | |||||
void nhops_destroy(struct rib_head *rh); | |||||
struct nhop_object *nhop_get(struct rib_head *rh, const struct nhop_request *req); | |||||
int nhop_ref_object(struct nhop_object *nh); | |||||
int nhop_ref_any(struct nhop_object *nh); | |||||
void nhop_free_any(struct nhop_object *nh); | |||||
void nhops_update_ifmtu(struct rib_head *rh, struct ifnet *ifp, uint32_t mtu); | |||||
int nhops_dump_sysctl(struct rib_head *rh, struct sysctl_req *w); | |||||
/* multipath */ | |||||
#define MPF_MULTIPATH 0x08 /* need to be consistent with NHF_MULTIPATH */ | |||||
#define MPF_LINKED 0x10 /* mpath group is linked */ | |||||
struct nhgrp_object { | |||||
uint16_t mp_flags; /* mpath flags */ | |||||
uint8_t mp_size; /* size of mpath group used in selection */ | |||||
uint8_t spare; | |||||
struct nhop_object *nhops[0]; /* nhops */ | |||||
}; | |||||
struct weightened_nhop { | |||||
struct nhop_object *nh; | |||||
uint32_t weight; | |||||
}; | |||||
/* nhgrp.c */ | |||||
int nhgrp_ctl_init(struct nh_control *ctl); | |||||
void nhgrp_ctl_free(struct nh_control *ctl); | |||||
struct nhgrp_object; | |||||
/* nhgrp_ctl.c */ | |||||
struct weightened_nhop *nhgrp_get_nhops(struct nhgrp_object *mp, | |||||
uint32_t *pnum_nhops); | |||||
int nhgrp_dump_sysctl(struct rib_head *rh, struct sysctl_req *w); | |||||
struct nhgrp_object *nhgrp_get_group(struct rib_head *rh, | |||||
struct weightened_nhop *wn, int num_nhops, int *perror); | |||||
struct nhgrp_object *nhgrp_append_nhops(struct rib_head *rh, | |||||
const struct nhgrp_object *gr_orig, struct weightened_nhop *wn, | |||||
int num_nhops, uint64_t *paddmask, int *perror); | |||||
struct nhgrp_object *nhgrp_get_del_nhops(struct rib_head *rh, | |||||
const struct nhgrp_object *src, uint64_t *nhop_mask, int *perror); | |||||
struct nhgrp_object *nhgrp_get_replace_nhop(struct rib_head *rh, | |||||
const struct nhgrp_object *gr_orig, struct weightened_nhop *wn, | |||||
uint8_t replace_idx, uint64_t *pmodmask, int *perror); | |||||
void nhgrp_free_group(struct nhgrp_object *gr); | |||||
int nhgrp_ref_group(struct nhgrp_object *gr); | |||||
/* nhgrp*/ | |||||
/* route_ctl.c */ | |||||
int can_nh_multipath(const struct nhop_object *nh); | |||||
int create_rte_from_rte(struct rib_head *rnh, struct rtentry *rt_orig, | |||||
struct rtentry **ret_rt); | |||||
int del_route_one(struct rib_head *rnh, struct rtentry *rt, | |||||
struct rt_addrinfo *info); | |||||
int rib_match_nhop_gw(const struct nhop_object *nh, | |||||
const struct sockaddr *gw); | |||||
#endif | |||||