/* | |
* 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 | |
* $Id: if_dl.h,v 1.1.1.1 2006/05/30 06:12:42 hhzhou Exp $ | |
*/ | |
#ifndef _NET_IF_DL_H_ | |
#define _NET_IF_DL_H_ | |
/* | |
* 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_short 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)) | |
#ifndef KERNEL | |
#include <sys/EfiCdefs.h> | |
__BEGIN_DECLS | |
void link_addr (const char *, struct sockaddr_dl *); | |
char *link_ntoa (const struct sockaddr_dl *); | |
__END_DECLS | |
#endif /* !KERNEL */ | |
#endif |