freebsd-dev/sys/netinet/in_fib.h
Alexander V. Chernikov b712e3e343 Refactor fib4/fib6 functions.
No functional changes.

* Make lookup path of fib<4|6>_lookup_debugnet() separate functions
 (fib<46>_lookup_rt()). These will be used in the control plane code
 requiring unlocked radix operations and actual prefix pointer.
* Make lookup part of fib<4|6>_check_urpf() separate functions.
 This change simplifies the switch to alternative lookup implementations,
 which helps algorithmic lookups introduction.
* While here, use static initializers for IPv4/IPv6 keys

Differential Revision:	https://reviews.freebsd.org/D27405
2020-11-29 13:41:49 +00:00

63 lines
2.6 KiB
C

/*-
* Copyright (c) 2015
* Alexander V. Chernikov <melifaro@FreeBSD.org>
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* $FreeBSD$
*/
#ifndef _NETINET_IN_FIB_H_
#define _NETINET_IN_FIB_H_
struct route_in {
/* common fields shared among all 'struct route' */
struct nhop_object *ro_nh;
struct llentry *ro_lle;
char *ro_prepend;
uint16_t ro_plen;
uint16_t ro_flags;
uint16_t ro_mtu; /* saved ro_rt mtu */
uint16_t spare;
/* custom sockaddr */
struct sockaddr_in ro_dst4;
};
struct rtentry;
struct route_nhop_data;
struct nhop_object *fib4_lookup(uint32_t fibnum, struct in_addr dst,
uint32_t scopeid, uint32_t flags, uint32_t flowid);
int fib4_check_urpf(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
uint32_t flags, const struct ifnet *src_if);
struct rtentry *fib4_lookup_rt(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
uint32_t flags, struct route_nhop_data *nrd);
struct nhop_object *fib4_lookup_debugnet(uint32_t fibnum, struct in_addr dst,
uint32_t scopeid, uint32_t flags);
uint32_t fib4_calc_software_hash(struct in_addr src, struct in_addr dst,
unsigned short src_port, unsigned short dst_port, char proto,
uint32_t *phashtype);
#endif