| 1 |
1254 |
phoenix |
//==========================================================================
|
| 2 |
|
|
//
|
| 3 |
|
|
// include/net/if_dl.h
|
| 4 |
|
|
//
|
| 5 |
|
|
//
|
| 6 |
|
|
//
|
| 7 |
|
|
//==========================================================================
|
| 8 |
|
|
//####BSDCOPYRIGHTBEGIN####
|
| 9 |
|
|
//
|
| 10 |
|
|
// -------------------------------------------
|
| 11 |
|
|
//
|
| 12 |
|
|
// Portions of this software may have been derived from OpenBSD or other sources,
|
| 13 |
|
|
// and are covered by the appropriate copyright disclaimers included herein.
|
| 14 |
|
|
//
|
| 15 |
|
|
// -------------------------------------------
|
| 16 |
|
|
//
|
| 17 |
|
|
//####BSDCOPYRIGHTEND####
|
| 18 |
|
|
//==========================================================================
|
| 19 |
|
|
//#####DESCRIPTIONBEGIN####
|
| 20 |
|
|
//
|
| 21 |
|
|
// Author(s): gthomas
|
| 22 |
|
|
// Contributors: gthomas
|
| 23 |
|
|
// Date: 2000-01-10
|
| 24 |
|
|
// Purpose:
|
| 25 |
|
|
// Description:
|
| 26 |
|
|
//
|
| 27 |
|
|
//
|
| 28 |
|
|
//####DESCRIPTIONEND####
|
| 29 |
|
|
//
|
| 30 |
|
|
//==========================================================================
|
| 31 |
|
|
|
| 32 |
|
|
|
| 33 |
|
|
/* $OpenBSD: if_dl.h,v 1.2 1997/02/24 13:33:58 niklas Exp $ */
|
| 34 |
|
|
/* $NetBSD: if_dl.h,v 1.8 1995/03/26 20:30:13 jtc Exp $ */
|
| 35 |
|
|
|
| 36 |
|
|
/*
|
| 37 |
|
|
* Copyright (c) 1990, 1993
|
| 38 |
|
|
* The Regents of the University of California. All rights reserved.
|
| 39 |
|
|
*
|
| 40 |
|
|
* Redistribution and use in source and binary forms, with or without
|
| 41 |
|
|
* modification, are permitted provided that the following conditions
|
| 42 |
|
|
* are met:
|
| 43 |
|
|
* 1. Redistributions of source code must retain the above copyright
|
| 44 |
|
|
* notice, this list of conditions and the following disclaimer.
|
| 45 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
| 46 |
|
|
* notice, this list of conditions and the following disclaimer in the
|
| 47 |
|
|
* documentation and/or other materials provided with the distribution.
|
| 48 |
|
|
* 3. All advertising materials mentioning features or use of this software
|
| 49 |
|
|
* must display the following acknowledgement:
|
| 50 |
|
|
* This product includes software developed by the University of
|
| 51 |
|
|
* California, Berkeley and its contributors.
|
| 52 |
|
|
* 4. Neither the name of the University nor the names of its contributors
|
| 53 |
|
|
* may be used to endorse or promote products derived from this software
|
| 54 |
|
|
* without specific prior written permission.
|
| 55 |
|
|
*
|
| 56 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
| 57 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 58 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 59 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
| 60 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 61 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
| 62 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| 63 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
| 64 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
| 65 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 66 |
|
|
* SUCH DAMAGE.
|
| 67 |
|
|
*
|
| 68 |
|
|
* @(#)if_dl.h 8.1 (Berkeley) 6/10/93
|
| 69 |
|
|
*/
|
| 70 |
|
|
|
| 71 |
|
|
#ifndef _NET_IF_DL_H_
|
| 72 |
|
|
#define _NET_IF_DL_H_
|
| 73 |
|
|
|
| 74 |
|
|
/*
|
| 75 |
|
|
* A Link-Level Sockaddr may specify the interface in one of two
|
| 76 |
|
|
* ways: either by means of a system-provided index number (computed
|
| 77 |
|
|
* anew and possibly differently on every reboot), or by a human-readable
|
| 78 |
|
|
* string such as "il0" (for managerial convenience).
|
| 79 |
|
|
*
|
| 80 |
|
|
* Census taking actions, such as something akin to SIOCGCONF would return
|
| 81 |
|
|
* both the index and the human name.
|
| 82 |
|
|
*
|
| 83 |
|
|
* High volume transactions (such as giving a link-level ``from'' address
|
| 84 |
|
|
* in a recvfrom or recvmsg call) may be likely only to provide the indexed
|
| 85 |
|
|
* form, (which requires fewer copy operations and less space).
|
| 86 |
|
|
*
|
| 87 |
|
|
* The form and interpretation of the link-level address is purely a matter
|
| 88 |
|
|
* of convention between the device driver and its consumers; however, it is
|
| 89 |
|
|
* expected that all drivers for an interface of a given if_type will agree.
|
| 90 |
|
|
*/
|
| 91 |
|
|
|
| 92 |
|
|
/*
|
| 93 |
|
|
* Structure of a Link-Level sockaddr:
|
| 94 |
|
|
*/
|
| 95 |
|
|
struct sockaddr_dl {
|
| 96 |
|
|
u_char sdl_len; /* Total length of sockaddr */
|
| 97 |
|
|
u_char sdl_family; /* AF_DLI */
|
| 98 |
|
|
u_int16_t sdl_index; /* if != 0, system given index for interface */
|
| 99 |
|
|
u_char sdl_type; /* interface type */
|
| 100 |
|
|
u_char sdl_nlen; /* interface name length, no trailing 0 reqd. */
|
| 101 |
|
|
u_char sdl_alen; /* link level address length */
|
| 102 |
|
|
u_char sdl_slen; /* link layer selector length */
|
| 103 |
|
|
char sdl_data[12]; /* minimum work area, can be larger;
|
| 104 |
|
|
contains both if name and ll address */
|
| 105 |
|
|
};
|
| 106 |
|
|
|
| 107 |
|
|
#define LLADDR(s) ((caddr_t)((s)->sdl_data + (s)->sdl_nlen))
|
| 108 |
|
|
|
| 109 |
|
|
#ifndef _KERNEL
|
| 110 |
|
|
|
| 111 |
|
|
#include <sys/cdefs.h>
|
| 112 |
|
|
|
| 113 |
|
|
__BEGIN_DECLS
|
| 114 |
|
|
void link_addr __P((const char *, struct sockaddr_dl *));
|
| 115 |
|
|
char *link_ntoa __P((const struct sockaddr_dl *));
|
| 116 |
|
|
__END_DECLS
|
| 117 |
|
|
|
| 118 |
|
|
#endif /* !_KERNEL */
|
| 119 |
|
|
|
| 120 |
|
|
#endif // _NET_IF_DL_H_
|
