| 1 | /* Modified for gcc/os2 by bird 2003
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| 2 | *
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| 3 | * Copyright (c) 1990, 1993
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| 4 | * The Regents of the University of California. All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * 3. All advertising materials mentioning features or use of this software
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| 15 | * must display the following acknowledgement:
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| 16 | * This product includes software developed by the University of
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| 17 | * California, Berkeley and its contributors.
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| 18 | * 4. Neither the name of the University nor the names of its contributors
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| 19 | * may be used to endorse or promote products derived from this software
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| 20 | * without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 32 | * SUCH DAMAGE.
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| 33 | *
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| 34 | * @(#)if_dl.h 8.1 (Berkeley) 6/10/93
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| 35 | * $FreeBSD: src/sys/net/if_dl.h,v 1.10 2000/03/01 02:46:25 archie Exp $
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| 36 | */
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| 37 |
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| 38 | #ifndef _NET_IF_DL_H_
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| 39 | #define _NET_IF_DL_H_
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| 40 |
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| 41 | #ifndef TCPV40HDRS
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| 42 | /*
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| 43 | * A Link-Level Sockaddr may specify the interface in one of two
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| 44 | * ways: either by means of a system-provided index number (computed
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| 45 | * anew and possibly differently on every reboot), or by a human-readable
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| 46 | * string such as "il0" (for managerial convenience).
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| 47 | *
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| 48 | * Census taking actions, such as something akin to SIOCGCONF would return
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| 49 | * both the index and the human name.
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| 50 | *
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| 51 | * High volume transactions (such as giving a link-level ``from'' address
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| 52 | * in a recvfrom or recvmsg call) may be likely only to provide the indexed
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| 53 | * form, (which requires fewer copy operations and less space).
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| 54 | *
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| 55 | * The form and interpretation of the link-level address is purely a matter
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| 56 | * of convention between the device driver and its consumers; however, it is
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| 57 | * expected that all drivers for an interface of a given if_type will agree.
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| 58 | */
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| 59 |
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| 60 | /*
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| 61 | * Structure of a Link-Level sockaddr:
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| 62 | */
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| 63 | struct sockaddr_dl {
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| 64 | u_char sdl_len; /* Total length of sockaddr */
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| 65 | u_char sdl_family; /* AF_LINK */
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| 66 | u_short sdl_index; /* if != 0, system given index for interface */
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| 67 | u_char sdl_type; /* interface type */
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| 68 | u_char sdl_nlen; /* interface name length, no trailing 0 reqd. */
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| 69 | u_char sdl_alen; /* link level address length */
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| 70 | u_char sdl_slen; /* link layer selector length */
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| 71 | char sdl_data[12]; /* minimum work area, can be larger;
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| 72 | contains both if name and ll address */
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| 73 | #if 0 /* not in the OS/2 toolkit */
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| 74 | u_short sdl_rcf; /* source routing control */
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| 75 | u_short sdl_route[16]; /* source routing information */
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| 76 | #endif
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| 77 | };
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| 78 |
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| 79 | #define LLADDR(s) ((caddr_t)((s)->sdl_data + (s)->sdl_nlen))
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| 80 |
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| 81 | #ifndef _KERNEL
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| 82 |
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| 83 | #include <sys/cdefs.h>
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| 84 |
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| 85 | #if 0 /* not in the OS/2 toolkit */
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| 86 | __BEGIN_DECLS
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| 87 | void link_addr __P((const char *, struct sockaddr_dl *));
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| 88 | char *link_ntoa __P((const struct sockaddr_dl *));
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| 89 | __END_DECLS
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| 90 | #endif
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| 91 |
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| 92 | #endif /* !_KERNEL */
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| 93 |
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| 94 | #endif /*!TCPV40HDR*/
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| 95 |
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| 96 | #endif
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