0,0 → 1,95 |
/*!\file net/if_dl.h |
* Link-level sockaddr_dl definition. |
*/ |
|
/* $NetBSD: if_dl.h,v 1.8 1995/03/26 20:30:13 jtc Exp $ */ |
|
/* |
* Copyright (c) 1990, 1993 |
* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software |
* must display the following acknowledgement: |
* This product includes software developed by the University of |
* California, Berkeley and its contributors. |
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. |
* |
* @(#)if_dl.h 8.1 (Berkeley) 6/10/93 |
*/ |
#ifndef __NET_IF_DL_H |
#define __NET_IF_DL_H |
|
#ifndef __SYS_W32API_H |
#include <sys/w32api.h> |
#endif |
|
#ifndef __SYS_CDEFS_H |
#include <sys/cdefs.h> |
#endif |
|
/* |
* A Link-Level Sockaddr may specify the interface in one of two |
* ways: either by means of a system-provided index number (computed |
* anew and possibly differently on every reboot), or by a human-readable |
* string such as "il0" (for managerial convenience). |
* |
* Census taking actions, such as something akin to SIOCGCONF would return |
* both the index and the human name. |
* |
* High volume transactions (such as giving a link-level ``from'' address |
* in a recvfrom or recvmsg call) may be likely only to provide the indexed |
* form, (which requires fewer copy operations and less space). |
* |
* The form and interpretation of the link-level address is purely a matter |
* of convention between the device driver and its consumers; however, it is |
* expected that all drivers for an interface of a given if_type will agree. |
*/ |
|
/* |
* Structure of a Link-Level sockaddr: |
*/ |
struct sockaddr_dl { |
u_char sdl_len; /* Total length of sockaddr */ |
u_char sdl_family; /* AF_DLI */ |
u_int16_t sdl_index; /* if != 0, system given index for interface */ |
u_char sdl_type; /* interface type */ |
u_char sdl_nlen; /* interface name length, no trailing 0 reqd. */ |
u_char sdl_alen; /* link level address length */ |
u_char sdl_slen; /* link layer selector length */ |
char sdl_data[12]; /* minimum work area, can be larger; |
contains both if name and ll address */ |
}; |
|
#define LLADDR(s) ((caddr_t)((s)->sdl_data + (s)->sdl_nlen)) |
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__BEGIN_DECLS |
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W32_FUNC void link_addr (const char *, struct sockaddr_dl *); |
W32_FUNC char *link_ntoa (const struct sockaddr_dl *); |
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__END_DECLS |
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#endif |