![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to if_dl.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Apple XNU] / XNU / bsd / net|
Return to if_dl.h CVS log | Up to [Apple XNU] / XNU / bsd / net |
1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * Copyright (c) 1990, 1993
24: * The Regents of the University of California. All rights reserved.
25: *
26: * Redistribution and use in source and binary forms, with or without
27: * modification, are permitted provided that the following conditions
28: * are met:
29: * 1. Redistributions of source code must retain the above copyright
30: * notice, this list of conditions and the following disclaimer.
31: * 2. Redistributions in binary form must reproduce the above copyright
32: * notice, this list of conditions and the following disclaimer in the
33: * documentation and/or other materials provided with the distribution.
34: * 3. All advertising materials mentioning features or use of this software
35: * must display the following acknowledgement:
36: * This product includes software developed by the University of
37: * California, Berkeley and its contributors.
38: * 4. Neither the name of the University nor the names of its contributors
39: * may be used to endorse or promote products derived from this software
40: * without specific prior written permission.
41: *
42: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
43: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
46: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52: * SUCH DAMAGE.
53: *
54: * @(#)if_dl.h 8.1 (Berkeley) 6/10/93
55: */
56:
57: #ifndef _NET_IF_DL_H_
58: #define _NET_IF_DL_H_
59:
60: /*
61: * A Link-Level Sockaddr may specify the interface in one of two
62: * ways: either by means of a system-provided index number (computed
63: * anew and possibly differently on every reboot), or by a human-readable
64: * string such as "il0" (for managerial convenience).
65: *
66: * Census taking actions, such as something akin to SIOCGCONF would return
67: * both the index and the human name.
68: *
69: * High volume transactions (such as giving a link-level ``from'' address
70: * in a recvfrom or recvmsg call) may be likely only to provide the indexed
71: * form, (which requires fewer copy operations and less space).
72: *
73: * The form and interpretation of the link-level address is purely a matter
74: * of convention between the device driver and its consumers; however, it is
75: * expected that all drivers for an interface of a given if_type will agree.
76: */
77:
78: /*
79: * Structure of a Link-Level sockaddr:
80: */
81: struct sockaddr_dl {
82: u_char sdl_len; /* Total length of sockaddr */
83: u_char sdl_family; /* AF_DLI */
84: u_short sdl_index; /* if != 0, system given index for interface */
85: u_char sdl_type; /* interface type */
86: u_char sdl_nlen; /* interface name length, no trailing 0 reqd. */
87: u_char sdl_alen; /* link level address length */
88: u_char sdl_slen; /* link layer selector length */
89: char sdl_data[12]; /* minimum work area, can be larger;
90: contains both if name and ll address */
91: };
92:
93: #define LLADDR(s) ((caddr_t)((s)->sdl_data + (s)->sdl_nlen))
94:
95: #ifndef KERNEL
96:
97: #include <sys/cdefs.h>
98:
99: __BEGIN_DECLS
100: void link_addr __P((const char *, struct sockaddr_dl *));
101: char *link_ntoa __P((const struct sockaddr_dl *));
102: __END_DECLS
103:
104: #endif /* !KERNEL */
105:
106: #endif
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.