| 1 | /* Modified for emx by hv 1996
|
|---|
| 2 | * Modified for gcc/os2 by bird 2003
|
|---|
| 3 | *
|
|---|
| 4 | * Copyright (c) 1988 Stephen Deering.
|
|---|
| 5 | * Copyright (c) 1992 Regents of the University of California.
|
|---|
| 6 | * All rights reserved.
|
|---|
| 7 | *
|
|---|
| 8 | * This code is derived from software contributed to Berkeley by
|
|---|
| 9 | * Stephen Deering of Stanford University.
|
|---|
| 10 | *
|
|---|
| 11 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 12 | * modification, are permitted provided that the following conditions
|
|---|
| 13 | * are met:
|
|---|
| 14 | * 1. Redistributions of source code must retain the above copyright
|
|---|
| 15 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 16 | * 2. Redistributions in binary form must reproduce the above copyright
|
|---|
| 17 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 18 | * documentation and/or other materials provided with the distribution.
|
|---|
| 19 | * 3. All advertising materials mentioning features or use of this software
|
|---|
| 20 | * must display the following acknowledgement:
|
|---|
| 21 | * This product includes software developed by the University of
|
|---|
| 22 | * California, Berkeley and its contributors.
|
|---|
| 23 | * 4. Neither the name of the University nor the names of its contributors
|
|---|
| 24 | * may be used to endorse or promote products derived from this software
|
|---|
| 25 | * without specific prior written permission.
|
|---|
| 26 | *
|
|---|
| 27 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|---|
| 28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|---|
| 29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|---|
| 30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|---|
| 31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|---|
| 32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|---|
| 33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|---|
| 34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|---|
| 35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|---|
| 36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|---|
| 37 | * SUCH DAMAGE.
|
|---|
| 38 | *
|
|---|
| 39 | * @(#)igmp.h 7.1 (Berkeley) 7/8/92
|
|---|
| 40 | */
|
|---|
| 41 |
|
|---|
| 42 | /* Internet Group Management Protocol (IGMP) definitions. */
|
|---|
| 43 |
|
|---|
| 44 | #ifndef _NETINET_IGMP_H_
|
|---|
| 45 | #define _NETINET_IGMP_H_
|
|---|
| 46 |
|
|---|
| 47 | /*
|
|---|
| 48 | * IGMP packet format.
|
|---|
| 49 | */
|
|---|
| 50 | #ifndef TCPV40HDRS
|
|---|
| 51 | #pragma pack(1)
|
|---|
| 52 | #endif
|
|---|
| 53 | struct igmp {
|
|---|
| 54 | u_char igmp_type; /* version & type of IGMP message */
|
|---|
| 55 | u_char igmp_code; /* unused, should be zero */
|
|---|
| 56 | u_short igmp_cksum; /* IP-style checksum */
|
|---|
| 57 | struct in_addr igmp_group; /* group address being reported */
|
|---|
| 58 | }; /* (zero for queries) */
|
|---|
| 59 | #ifndef TCPV40HDRS
|
|---|
| 60 | #pragma pack()
|
|---|
| 61 | #endif
|
|---|
| 62 |
|
|---|
| 63 | #define IGMP_MINLEN 8
|
|---|
| 64 |
|
|---|
| 65 | #define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* message types, incl. version */
|
|---|
| 66 | #define IGMP_HOST_MEMBERSHIP_REPORT 0x12
|
|---|
| 67 | #define IGMP_DVMRP 0x13 /* for experimental multicast */
|
|---|
| 68 | /* routing protocol */
|
|---|
| 69 |
|
|---|
| 70 | #define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */
|
|---|
| 71 | /* query (in seconds) */
|
|---|
| 72 |
|
|---|
| 73 | #endif
|
|---|
