xref: /freebsd/sys/netinet/in_fib.h (revision 95ee2897)
1 /*-
2  * Copyright (c) 2015
3  * 	Alexander V. Chernikov <melifaro@FreeBSD.org>
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #ifndef _NETINET_IN_FIB_H_
31 #define	_NETINET_IN_FIB_H_
32 
33 struct route_in {
34 	/* common fields shared among all 'struct route' */
35 	struct nhop_object *ro_nh;
36 	struct	llentry *ro_lle;
37 	char		*ro_prepend;
38 	uint16_t	ro_plen;
39 	uint16_t	ro_flags;
40 	uint16_t	ro_mtu;	/* saved ro_rt mtu */
41 	uint16_t	spare;
42 	/* custom sockaddr */
43 	struct sockaddr_in ro_dst4;
44 };
45 
46 struct rtentry;
47 struct route_nhop_data;
48 
49 struct nhop_object *fib4_lookup(uint32_t fibnum, struct in_addr dst,
50     uint32_t scopeid, uint32_t flags, uint32_t flowid);
51 int fib4_check_urpf(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
52     uint32_t flags, const struct ifnet *src_if);
53 struct rtentry *fib4_lookup_rt(uint32_t fibnum, struct in_addr dst, uint32_t scopeid,
54     uint32_t flags, struct route_nhop_data *nrd);
55 struct nhop_object *fib4_lookup_debugnet(uint32_t fibnum, struct in_addr dst,
56     uint32_t scopeid, uint32_t flags);
57 uint32_t fib4_calc_software_hash(struct in_addr src, struct in_addr dst,
58     unsigned short src_port, unsigned short dst_port, char proto,
59     uint32_t *phashtype);
60 #endif
61