Move RTF_ANNOUNCE flag so that it no longer conflicts with RTF_PROTO2.
RTF_ANNOUNCE was defined as RTF_PROTO2. The flag is used to indicated
that host should act as a proxy for a link level arp or ndp request.
(If RTF_PROTO2 is used as an experimental flag (as advertised),
various problems can occur.)
This commit provides a first-class definition with its own bit for
RTF_ANNOUNCE, removes the old aliasing definitions, and adds support
for the new RTF_ANNOUNCE flag to netstat(8) and route(8).,
Also, remove unused RTF_ flags that collide with RTF_PROTO1:
netinet/icmp6.h defined RTF_PROBEMTU as RTF_PROTO1
netinet/if_inarp.h defined RTF_USETRAILERS as RTF_PROTO1
(Neither of these flags are used anywhere. Both have been removed
to reduce chances of collision with RTF_PROTO1.)
Figuring this out and the diff are the work of Beverly Schwartz of
BBN.
(Passed release build, boot in VM, with no apparently related atf
failures.)
Approved for Public Release, Distribution Unlimited
This material is based upon work supported by the Defense Advanced
Research Projects Agency and Space and Naval Warfare Systems Center,
Pacific, under Contract No. N66001-09-C-2073.
2011-11-11 19:09:32 +04:00
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/* $NetBSD: if_inarp.h,v 1.43 2011/11/11 15:09:33 gdt 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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};
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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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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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2008-10-24 21:07:33 +04:00
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void arp_rtrequest(int, struct rtentry *, const struct rt_addrinfo *);
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2004-04-21 21:49:46 +04:00
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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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