1 | /* |
2 | * Copyright (c) 2000-2011 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * Copyright (c) 1990, 1993 |
30 | * The Regents of the University of California. All rights reserved. |
31 | * |
32 | * Redistribution and use in source and binary forms, with or without |
33 | * modification, are permitted provided that the following conditions |
34 | * are met: |
35 | * 1. Redistributions of source code must retain the above copyright |
36 | * notice, this list of conditions and the following disclaimer. |
37 | * 2. Redistributions in binary form must reproduce the above copyright |
38 | * notice, this list of conditions and the following disclaimer in the |
39 | * documentation and/or other materials provided with the distribution. |
40 | * 3. All advertising materials mentioning features or use of this software |
41 | * must display the following acknowledgement: |
42 | * This product includes software developed by the University of |
43 | * California, Berkeley and its contributors. |
44 | * 4. Neither the name of the University nor the names of its contributors |
45 | * may be used to endorse or promote products derived from this software |
46 | * without specific prior written permission. |
47 | * |
48 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
58 | * SUCH DAMAGE. |
59 | * |
60 | * @(#)if_dl.h 8.1 (Berkeley) 6/10/93 |
61 | * $FreeBSD: src/sys/net/if_dl.h,v 1.10 2000/03/01 02:46:25 archie Exp $ |
62 | */ |
63 | |
64 | #ifndef _NET_IF_DL_H_ |
65 | #define _NET_IF_DL_H_ |
66 | #include <sys/appleapiopts.h> |
67 | |
68 | #include <sys/types.h> |
69 | |
70 | #ifdef BSD_KERNEL_PRIVATE |
71 | #define DLIL_SDLMAXLEN 64 |
72 | #endif /* BSD_KERNEL_PRIVATE */ |
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_LINK */ |
98 | u_short 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]; |
104 | /* minimum work area, can be larger; |
105 | * contains both if name and ll address */ |
106 | #ifndef __APPLE__ |
107 | /* For TokenRing */ |
108 | u_short sdl_rcf; /* source routing control */ |
109 | u_short sdl_route[16]; /* source routing information */ |
110 | #endif |
111 | }; |
112 | |
113 | #define LLADDR(s) ((caddr_t)((s)->sdl_data + (s)->sdl_nlen)) |
114 | #ifdef KERNEL_PRIVATE |
115 | #define CONST_LLADDR(s) ((const u_char*)((s)->sdl_data + (s)->sdl_nlen)) |
116 | #endif |
117 | |
118 | #ifdef BSD_KERNEL_PRIVATE |
119 | #define SDL(s) ((struct sockaddr_dl *)(void *)s) |
120 | #endif |
121 | |
122 | #ifndef KERNEL |
123 | |
124 | #include <sys/cdefs.h> |
125 | |
126 | __BEGIN_DECLS |
127 | void link_addr(const char *, struct sockaddr_dl *); |
128 | char *link_ntoa(const struct sockaddr_dl *); |
129 | __END_DECLS |
130 | |
131 | #endif /* !KERNEL */ |
132 | |
133 | #endif |
134 | |