Annotation of sys/netinet/igmp.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: igmp.h,v 1.6 2003/06/02 23:28:13 millert Exp $ */
! 2: /* $NetBSD: igmp.h,v 1.6 1995/05/31 06:08:21 mycroft Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1988 Stephen Deering.
! 6: * Copyright (c) 1992, 1993
! 7: * The Regents of the University of California. All rights reserved.
! 8: *
! 9: * This code is derived from software contributed to Berkeley by
! 10: * Stephen Deering of Stanford University.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. Neither the name of the University nor the names of its contributors
! 21: * may be used to endorse or promote products derived from this software
! 22: * without specific prior written permission.
! 23: *
! 24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 34: * SUCH DAMAGE.
! 35: *
! 36: * @(#)igmp.h 8.1 (Berkeley) 6/10/93
! 37: */
! 38:
! 39: #ifndef _NETINET_IGMP_H_
! 40: #define _NETINET_IGMP_H_
! 41:
! 42: /*
! 43: * Internet Group Management Protocol (IGMP) definitions.
! 44: *
! 45: * MULTICAST 1.3
! 46: */
! 47:
! 48: /*
! 49: * IGMP packet format.
! 50: */
! 51: struct igmp {
! 52: u_int8_t igmp_type; /* version & type of IGMP message */
! 53: u_int8_t igmp_code; /* code for routing sub-messages */
! 54: u_int16_t igmp_cksum; /* IP-style checksum */
! 55: struct in_addr igmp_group; /* group address being reported */
! 56: }; /* (zero for queries) */
! 57:
! 58: #define IGMP_MINLEN 8
! 59:
! 60: #define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* membership query */
! 61: #define IGMP_v1_HOST_MEMBERSHIP_REPORT 0x12 /* v1 membership report */
! 62: #define IGMP_DVMRP 0x13 /* DVMRP routing message */
! 63: #define IGMP_PIM 0x14 /* PIM routing message */
! 64: #define IGMP_v2_HOST_MEMBERSHIP_REPORT 0x16 /* v2 membership report */
! 65: #define IGMP_HOST_LEAVE_MESSAGE 0x17 /* leave-group message */
! 66: #define IGMP_MTRACE_REPLY 0x1e /* traceroute reply */
! 67: #define IGMP_MTRACE_QUERY 0x1f /* traceroute query */
! 68:
! 69: #define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */
! 70: /* query (in seconds) */
! 71:
! 72: #define IGMP_TIMER_SCALE 10 /* denominator for igmp_timer */
! 73:
! 74: /*
! 75: * States for the IGMP v2 state table.
! 76: */
! 77: #define IGMP_DELAYING_MEMBER 1
! 78: #define IGMP_IDLE_MEMBER 2
! 79: #define IGMP_LAZY_MEMBER 3
! 80: #define IGMP_SLEEPING_MEMBER 4
! 81: #define IGMP_AWAKENING_MEMBER 5
! 82:
! 83: /*
! 84: * States for IGMP router version cache.
! 85: */
! 86: #define IGMP_v1_ROUTER 1
! 87: #define IGMP_v2_ROUTER 2
! 88:
! 89: /*
! 90: * Revert to v2 if we haven't heard from the router in this amount of time.
! 91: */
! 92: #define IGMP_AGE_THRESHOLD 540
! 93:
! 94: #ifdef _KERNEL
! 95: void rti_delete(struct ifnet *);
! 96: #endif /* _KERNEL */
! 97: #endif /* _NETINET_IGMP_H_ */
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