1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 1993-2003 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate /* 6*0Sstevel@tonic-gate * Copyright (c) 1990, 1993 7*0Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 10*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 11*0Sstevel@tonic-gate * are met: 12*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 13*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 14*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 15*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 16*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 17*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 18*0Sstevel@tonic-gate * must display the following acknowledgement: 19*0Sstevel@tonic-gate * This product includes software developed by the University of 20*0Sstevel@tonic-gate * California, Berkeley and its contributors. 21*0Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 22*0Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 23*0Sstevel@tonic-gate * without specific prior written permission. 24*0Sstevel@tonic-gate * 25*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35*0Sstevel@tonic-gate * SUCH DAMAGE. 36*0Sstevel@tonic-gate */ 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #ifndef _NET_IF_DL_H 39*0Sstevel@tonic-gate #define _NET_IF_DL_H 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 42*0Sstevel@tonic-gate /* from UCB 8.1 (Berkeley) 6/10/93 */ 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #ifdef __cplusplus 45*0Sstevel@tonic-gate extern "C" { 46*0Sstevel@tonic-gate #endif 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* 49*0Sstevel@tonic-gate * A Link-Level Sockaddr may specify the interface in one of two 50*0Sstevel@tonic-gate * ways: either by means of a system-provided index number (computed 51*0Sstevel@tonic-gate * anew and possibly differently on every reboot), or by a human-readable 52*0Sstevel@tonic-gate * string such as "il0" (for managerial convenience). 53*0Sstevel@tonic-gate * 54*0Sstevel@tonic-gate * Census taking actions, such as something akin to SIOCGCONF would return 55*0Sstevel@tonic-gate * both the index and the human name. 56*0Sstevel@tonic-gate * 57*0Sstevel@tonic-gate * High volume transactions (such as giving a link-level ``from'' address 58*0Sstevel@tonic-gate * in a recvfrom or recvmsg call) may be likely only to provide the indexed 59*0Sstevel@tonic-gate * form, (which requires fewer copy operations and less space). 60*0Sstevel@tonic-gate * 61*0Sstevel@tonic-gate * The form and interpretation of the link-level address is purely a matter 62*0Sstevel@tonic-gate * of convention between the device driver and its consumers; however, it is 63*0Sstevel@tonic-gate * expected that all drivers for an interface of a given if_type will agree. 64*0Sstevel@tonic-gate */ 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * Structure of a Link-Level sockaddr: 68*0Sstevel@tonic-gate */ 69*0Sstevel@tonic-gate struct sockaddr_dl { 70*0Sstevel@tonic-gate ushort_t sdl_family; /* AF_LINK */ 71*0Sstevel@tonic-gate ushort_t sdl_index; /* if != 0, system given index for interface */ 72*0Sstevel@tonic-gate uchar_t sdl_type; /* interface type */ 73*0Sstevel@tonic-gate uchar_t sdl_nlen; /* interface name length, no trailing 0 reqd. */ 74*0Sstevel@tonic-gate uchar_t sdl_alen; /* link level address length */ 75*0Sstevel@tonic-gate uchar_t sdl_slen; /* link layer selector length */ 76*0Sstevel@tonic-gate char sdl_data[244]; /* contains both if name and ll address */ 77*0Sstevel@tonic-gate }; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate #define LLADDR(s) ((caddr_t)((s)->sdl_data + (s)->sdl_nlen)) 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate #ifdef __STDC__ 82*0Sstevel@tonic-gate extern char *_link_ntoa(const unsigned char *, char *, int, int); 83*0Sstevel@tonic-gate extern unsigned char *_link_aton(const char *, int *); 84*0Sstevel@tonic-gate #else /* __STDC__ */ 85*0Sstevel@tonic-gate extern char *_link_ntoa(); 86*0Sstevel@tonic-gate extern unsigned char *_link_aton(); 87*0Sstevel@tonic-gate #endif /* __STDC__ */ 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate #ifdef __cplusplus 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate #endif 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate #endif /* _NET_IF_DL_H */ 94