2008-04-15 19:17:54 +04:00
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/* $NetBSD: if_inarp.h,v 1.40 2008/04/15 15:17:54 thorpej Exp $ */
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1994-06-29 10:29:24 +04:00
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1993-03-21 12:45:37 +03:00
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/*
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1994-05-13 10:02:48 +04:00
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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1993-03-21 12:45:37 +03:00
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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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2003-08-07 20:26:28 +04:00
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* 3. Neither the name of the University nor the names of its contributors
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1993-03-21 12:45:37 +03:00
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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 REGENTS 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 REGENTS 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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1994-06-29 10:29:24 +04:00
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* @(#)if_ether.h 8.1 (Berkeley) 6/10/93
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1993-03-21 12:45:37 +03:00
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*/
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1998-02-10 04:26:19 +03:00
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#ifndef _NETINET_IF_INARP_H_
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#define _NETINET_IF_INARP_H_
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1994-05-13 10:02:48 +04:00
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struct llinfo_arp {
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1995-06-12 04:46:47 +04:00
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LIST_ENTRY(llinfo_arp) la_list;
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1994-05-13 10:02:48 +04:00
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struct rtentry *la_rt;
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struct mbuf *la_hold; /* last packet until resolved/timeout */
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long la_asked; /* last time we QUERIED for this addr */
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#define la_timer la_rt->rt_rmx.rmx_expire /* deletion time in seconds */
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};
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struct sockaddr_inarp {
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1995-04-13 10:25:36 +04:00
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u_int8_t sin_len;
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u_int8_t sin_family;
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u_int16_t sin_port;
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struct in_addr sin_addr;
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struct in_addr sin_srcaddr;
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u_int16_t sin_tos;
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u_int16_t sin_other;
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1994-05-13 10:02:48 +04:00
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#define SIN_PROXY 1
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1993-03-21 12:45:37 +03:00
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};
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/*
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1994-05-13 10:02:48 +04:00
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* IP and ethernet specific routing flags
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1993-03-21 12:45:37 +03:00
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*/
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1994-05-13 10:02:48 +04:00
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#define RTF_USETRAILERS RTF_PROTO1 /* use trailers */
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#define RTF_ANNOUNCE RTF_PROTO2 /* announce new arp entry */
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1993-03-21 12:45:37 +03:00
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1996-02-14 02:40:59 +03:00
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#ifdef _KERNEL
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2000-03-30 06:32:57 +04:00
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extern struct ifqueue arpintrq;
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2004-04-21 21:49:46 +04:00
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void arp_ifinit(struct ifnet *, struct ifaddr *);
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void arp_rtrequest(int, struct rtentry *, struct rt_addrinfo *);
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int arpresolve(struct ifnet *, struct rtentry *, struct mbuf *,
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KNF: de-__P, bzero -> memset, bcmp -> memcmp. Remove extraneous
parentheses in return statements.
Cosmetic: don't open-code TAILQ_FOREACH().
Cosmetic: change types of variables to avoid oodles of casts: in
in6_src.c, avoid casts by changing several route_in6 pointers
to struct route pointers. Remove unnecessary casts to caddr_t
elsewhere.
Pave the way for eliminating address family-specific route caches:
soon, struct route will not embed a sockaddr, but it will hold
a reference to an external sockaddr, instead. We will set the
destination sockaddr using rtcache_setdst(). (I created a stub
for it, but it isn't used anywhere, yet.) rtcache_free() will
free the sockaddr. I have extracted from rtcache_free() a helper
subroutine, rtcache_clear(). rtcache_clear() will "forget" a
cached route, but it will not forget the destination by releasing
the sockaddr. I use rtcache_clear() instead of rtcache_free()
in rtcache_update(), because rtcache_update() is not supposed
to forget the destination.
Constify:
1 Introduce const accessor for route->ro_dst, rtcache_getdst().
2 Constify the 'dst' argument to ifnet->if_output(). This
led me to constify a lot of code called by output routines.
3 Constify the sockaddr argument to protosw->pr_ctlinput. This
led me to constify a lot of code called by ctlinput routines.
4 Introduce const macros for converting from a generic sockaddr
to family-specific sockaddrs, e.g., sockaddr_in: satocsin6,
satocsin, et cetera.
2007-02-18 01:34:07 +03:00
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const struct sockaddr *, u_char *);
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2004-04-21 21:49:46 +04:00
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void arpintr(void);
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KNF: de-__P, bzero -> memset, bcmp -> memcmp. Remove extraneous
parentheses in return statements.
Cosmetic: don't open-code TAILQ_FOREACH().
Cosmetic: change types of variables to avoid oodles of casts: in
in6_src.c, avoid casts by changing several route_in6 pointers
to struct route pointers. Remove unnecessary casts to caddr_t
elsewhere.
Pave the way for eliminating address family-specific route caches:
soon, struct route will not embed a sockaddr, but it will hold
a reference to an external sockaddr, instead. We will set the
destination sockaddr using rtcache_setdst(). (I created a stub
for it, but it isn't used anywhere, yet.) rtcache_free() will
free the sockaddr. I have extracted from rtcache_free() a helper
subroutine, rtcache_clear(). rtcache_clear() will "forget" a
cached route, but it will not forget the destination by releasing
the sockaddr. I use rtcache_clear() instead of rtcache_free()
in rtcache_update(), because rtcache_update() is not supposed
to forget the destination.
Constify:
1 Introduce const accessor for route->ro_dst, rtcache_getdst().
2 Constify the 'dst' argument to ifnet->if_output(). This
led me to constify a lot of code called by output routines.
3 Constify the sockaddr argument to protosw->pr_ctlinput. This
led me to constify a lot of code called by ctlinput routines.
4 Introduce const macros for converting from a generic sockaddr
to family-specific sockaddrs, e.g., sockaddr_in: satocsin6,
satocsin, et cetera.
2007-02-18 01:34:07 +03:00
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void arprequest(struct ifnet *, const struct in_addr *, const struct in_addr *,
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const u_int8_t *);
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2008-04-15 19:17:54 +04:00
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void arp_init(void);
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2004-04-21 21:49:46 +04:00
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void arp_drain(void);
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2007-03-04 08:59:00 +03:00
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int arpioctl(u_long, void *);
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2004-04-21 21:49:46 +04:00
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void arpwhohas(struct ifnet *, struct in_addr *);
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1997-03-15 21:09:08 +03:00
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2004-04-21 21:49:46 +04:00
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void revarpinput(struct mbuf *);
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void in_revarpinput(struct mbuf *);
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void revarprequest(struct ifnet *);
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int revarpwhoarewe(struct ifnet *, struct in_addr *, struct in_addr *);
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1997-01-17 11:17:57 +03:00
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#endif
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1998-02-10 04:26:19 +03:00
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2005-12-11 02:31:41 +03:00
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#endif /* !_NETINET_IF_INARP_H_ */
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