mirror of
https://github.com/freebsd/freebsd-src.git
synced 2026-10-28 11:25:21 +01:00
Pouria Mousavizadeh Tehrani
84f790e5b6
Packets decapsulated by a tunnel interface carry the NIC's flowid computed over the outer tunnel tuple, which is the same for every flow a peer carries. Therefore mpath nhop selection places all traffic on one path. Add encap_set_flowid() to ip_encap.c, which rehashes a decapsulated IP packet on its inner addresses. The feature is off by default and is enabled with the per-vnet net.route.hash_inbound sysctl. Reviewed by: gallatin Differential Revision: https://reviews.freebsd.org/D60552
89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
/* $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $ */
|
|
|
|
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
|
|
* Copyright (c) 2018 Andrey V. Elsukov <[email protected]>
|
|
* All rights reserved.
|
|
*
|
|
* 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 project 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 PROJECT 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 PROJECT 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.
|
|
*/
|
|
|
|
#ifndef _NETINET_IP_ENCAP_H_
|
|
#define _NETINET_IP_ENCAP_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <net/vnet.h>
|
|
|
|
int encap4_input(struct mbuf **, int *, int);
|
|
int encap6_input(struct mbuf **, int *, int);
|
|
|
|
typedef int (*encap_lookup_t)(const struct mbuf *, int, int, void **);
|
|
typedef int (*encap_check_t)(const struct mbuf *, int, int, void *);
|
|
typedef int (*encap_input_t)(struct mbuf *, int, int, void *);
|
|
typedef void (*encap_srcaddr_t)(void *, const struct sockaddr *, int);
|
|
|
|
struct encap_config {
|
|
int proto; /* protocol */
|
|
int min_length; /* minimum packet length */
|
|
int max_hdrsize; /* maximum header size */
|
|
int exact_match; /* a packet is exactly matched */
|
|
#define ENCAP_DRV_LOOKUP 0x7fffffff
|
|
|
|
encap_lookup_t lookup;
|
|
encap_check_t check;
|
|
encap_input_t input;
|
|
|
|
void *pad[3];
|
|
};
|
|
|
|
struct encaptab;
|
|
struct srcaddrtab;
|
|
|
|
const struct encaptab *ip_encap_attach(const struct encap_config *,
|
|
void *arg, int mflags);
|
|
const struct encaptab *ip6_encap_attach(const struct encap_config *,
|
|
void *arg, int mflags);
|
|
|
|
const struct srcaddrtab *ip_encap_register_srcaddr(encap_srcaddr_t,
|
|
void *arg, int mflags);
|
|
const struct srcaddrtab *ip6_encap_register_srcaddr(encap_srcaddr_t,
|
|
void *arg, int mflags);
|
|
|
|
int ip_encap_unregister_srcaddr(const struct srcaddrtab *);
|
|
int ip6_encap_unregister_srcaddr(const struct srcaddrtab *);
|
|
int ip_encap_detach(const struct encaptab *);
|
|
int ip6_encap_detach(const struct encaptab *);
|
|
|
|
VNET_DECLARE(bool, encap_hash_inbound);
|
|
#define V_encap_hash_inbound VNET(encap_hash_inbound)
|
|
|
|
bool encap_set_flowid(struct mbuf *, int);
|
|
#endif
|
|
|
|
#endif /*_NETINET_IP_ENCAP_H_*/
|