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gre_ip_encap.h
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gre_ip_encap.h
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//
// gre_ip_encap.h
// gre
//
// Created by Zhenlei Huang on 10/7/15.
//
//
/* $FreeBSD$ */
/* $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $ */
/*-
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* 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 _GRE_IP_ENCAP_H
#define _GRE_IP_ENCAP_H
#include <sys/appleapiopts.h>
#include <sys/socket.h>
#include <sys/queue.h>
struct gre_encaptab {
LIST_ENTRY(gre_encaptab) chain;
int af;
int proto; /* -1: don't care, I'll check myself */
struct sockaddr_storage src; /* my addr */
struct sockaddr_storage srcmask;
struct sockaddr_storage dst; /* remote addr */
struct sockaddr_storage dstmask;
int (*func)(const mbuf_t, int, int, void *);
//const struct protosw *psw; /* only pr_input will be used */
void (*pr_input)(mbuf_t *, int *, int, void *);
void *arg; /* passed via m->m_pkthdr.aux */
};
int gre_encap_init(void);
int gre_encap_dispose(void);
int gre_encap4_input(mbuf_t, int);
int gre_encap6_input(mbuf_t *, int *, int);
const struct gre_encaptab *gre_encap_attach(int, int, const struct sockaddr *,
const struct sockaddr *, const struct sockaddr *,
const struct sockaddr *, void (*pr_input)(mbuf_t *, int *, int, void *), void *);
const struct gre_encaptab *gre_encap_attach_func(int, int,
int (*)(const mbuf_t , int, int, void *),
void (*pr_input)(mbuf_t *, int *, int, void *),
void *);
int gre_encap_detach(const struct gre_encaptab *);
void * gre_encap_getarg(mbuf_t);
#endif