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51369649b0
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
135 lines
4.6 KiB
C
135 lines
4.6 KiB
C
/* $FreeBSD$ */
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/* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _NET_IF_GIF_H_
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#define _NET_IF_GIF_H_
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#ifdef _KERNEL
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include <netinet/in.h>
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struct ip;
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struct ip6_hdr;
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struct encaptab;
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extern void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp,
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int af);
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extern void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m,
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int af);
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extern int (*ng_gif_output_p)(struct ifnet *ifp, struct mbuf **mp);
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extern void (*ng_gif_attach_p)(struct ifnet *ifp);
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extern void (*ng_gif_detach_p)(struct ifnet *ifp);
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struct gif_softc {
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struct ifnet *gif_ifp;
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struct rmlock gif_lock;
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const struct encaptab *gif_ecookie;
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int gif_family;
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int gif_flags;
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u_int gif_fibnum;
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u_int gif_options;
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void *gif_netgraph; /* netgraph node info */
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union {
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void *hdr;
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struct ip *iphdr;
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#ifdef INET6
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struct ip6_hdr *ip6hdr;
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#endif
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} gif_uhdr;
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LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
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};
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#define GIF2IFP(sc) ((sc)->gif_ifp)
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#define GIF_LOCK_INIT(sc) rm_init(&(sc)->gif_lock, "gif softc")
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#define GIF_LOCK_DESTROY(sc) rm_destroy(&(sc)->gif_lock)
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#define GIF_RLOCK_TRACKER struct rm_priotracker gif_tracker
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#define GIF_RLOCK(sc) rm_rlock(&(sc)->gif_lock, &gif_tracker)
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#define GIF_RUNLOCK(sc) rm_runlock(&(sc)->gif_lock, &gif_tracker)
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#define GIF_RLOCK_ASSERT(sc) rm_assert(&(sc)->gif_lock, RA_RLOCKED)
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#define GIF_WLOCK(sc) rm_wlock(&(sc)->gif_lock)
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#define GIF_WUNLOCK(sc) rm_wunlock(&(sc)->gif_lock)
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#define GIF_WLOCK_ASSERT(sc) rm_assert(&(sc)->gif_lock, RA_WLOCKED)
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#define gif_iphdr gif_uhdr.iphdr
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#define gif_hdr gif_uhdr.hdr
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#ifdef INET6
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#define gif_ip6hdr gif_uhdr.ip6hdr
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#endif
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#define GIF_MTU (1280) /* Default MTU */
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#define GIF_MTU_MIN (1280) /* Minimum MTU */
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#define GIF_MTU_MAX (8192) /* Maximum MTU */
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struct etherip_header {
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#if BYTE_ORDER == LITTLE_ENDIAN
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u_int eip_resvl:4, /* reserved */
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eip_ver:4; /* version */
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#endif
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#if BYTE_ORDER == BIG_ENDIAN
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u_int eip_ver:4, /* version */
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eip_resvl:4; /* reserved */
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#endif
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u_int8_t eip_resvh; /* reserved */
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} __packed;
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#define ETHERIP_VERSION 0x3
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/* mbuf adjust factor to force 32-bit alignment of IP header */
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#define ETHERIP_ALIGN 2
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/* Prototypes */
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void gif_input(struct mbuf *, struct ifnet *, int, uint8_t);
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int gif_output(struct ifnet *, struct mbuf *, const struct sockaddr *,
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struct route *);
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int gif_encapcheck(const struct mbuf *, int, int, void *);
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#ifdef INET
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int in_gif_output(struct ifnet *, struct mbuf *, int, uint8_t);
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int in_gif_encapcheck(const struct mbuf *, int, int, void *);
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int in_gif_attach(struct gif_softc *);
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#endif
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#ifdef INET6
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int in6_gif_output(struct ifnet *, struct mbuf *, int, uint8_t);
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int in6_gif_encapcheck(const struct mbuf *, int, int, void *);
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int in6_gif_attach(struct gif_softc *);
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#endif
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#endif /* _KERNEL */
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#define GIFGOPTS _IOWR('i', 150, struct ifreq)
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#define GIFSOPTS _IOW('i', 151, struct ifreq)
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#define GIF_IGNORE_SOURCE 0x0002
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#define GIF_OPTMASK (GIF_IGNORE_SOURCE)
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#endif /* _NET_IF_GIF_H_ */
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