0,0 → 1,105 |
/*!\file netinet/igmp.h |
* Internet Group Managment Protocol. |
*/ |
|
/* |
* Copyright (c) 1988 Stephen Deering. |
* Copyright (c) 1992, 1993 |
* The Regents of the University of California. All rights reserved. |
* |
* This code is derived from software contributed to Berkeley by |
* Stephen Deering of Stanford University. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* 1. Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* must display the following acknowledgement: |
* This product includes software developed by the University of |
* California, Berkeley and its contributors. |
* 4. Neither the name of the University nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* |
* @(#)igmp.h 8.1 (Berkeley) 6/10/93 |
* $Id: igmp.h,v 1.7 1996/03/14 16:59:17 fenner Exp $ |
*/ |
|
#ifndef __NETINET_IGMP_H |
#define __NETINET_IGMP_H |
|
/* |
* Internet Group Management Protocol (IGMP) definitions. |
* |
* Written by Steve Deering, Stanford, May 1988. |
* |
* MULTICAST Revision: 3.5.1.2 |
*/ |
|
/* |
* IGMP packet format. |
*/ |
|
#include <sys/packon.h> |
|
struct igmp { |
u_char igmp_type; /* version & type of IGMP message */ |
u_char igmp_code; /* subtype for routing msgs */ |
u_short igmp_cksum; /* IP-style checksum */ |
struct in_addr igmp_group; /* group address being reported */ |
}; /* (zero for queries) */ |
|
#include <sys/packoff.h> |
|
#define IGMP_MINLEN 8 |
|
/* |
* Message types, including version number. |
*/ |
#define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ |
#define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ |
#define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ |
#define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */ |
|
#define IGMP_DVMRP 0x13 /* DVMRP routing message */ |
#define IGMP_PIM 0x14 /* PIM routing message */ |
|
#define IGMP_MTRACE_RESP 0x1e /* traceroute resp.(to sender)*/ |
#define IGMP_MTRACE 0x1f /* mcast traceroute messages */ |
|
#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ |
/* query (in seconds) according */ |
/* to RFC1112 */ |
|
|
#define IGMP_TIMER_SCALE 10 /* denotes that the igmp code field */ |
/* specifies time in 10th of seconds*/ |
|
/* |
* The following four defininitions are for backwards compatibility. |
* They should be removed as soon as all applications are updated to |
* use the new constant names. |
*/ |
#define IGMP_HOST_MEMBERSHIP_QUERY IGMP_MEMBERSHIP_QUERY |
#define IGMP_HOST_MEMBERSHIP_REPORT IGMP_V1_MEMBERSHIP_REPORT |
#define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT |
#define IGMP_HOST_LEAVE_MESSAGE IGMP_V2_LEAVE_GROUP |
|
#endif |