diff options
Diffstat (limited to 'sys/netinet/igmp.h')
| -rw-r--r-- | sys/netinet/igmp.h | 57 |
1 files changed, 35 insertions, 22 deletions
diff --git a/sys/netinet/igmp.h b/sys/netinet/igmp.h index 4011b4c..a7038f3 100644 --- a/sys/netinet/igmp.h +++ b/sys/netinet/igmp.h @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * @(#)igmp.h 8.1 (Berkeley) 6/10/93 - * $Id: igmp.h,v 1.4 1994/09/06 22:42:17 wollman Exp $ + * $Id: igmp.h,v 1.4 1994/09/06 22:42:17 wollman Exp $ */ #ifndef _NETINET_IGMP_H_ @@ -46,7 +46,7 @@ * * Written by Steve Deering, Stanford, May 1988. * - * MULTICAST 1.2 + * MULTICAST Revision: 3.3.1.2 */ /* @@ -54,40 +54,53 @@ */ struct igmp { u_char igmp_type; /* version & type of IGMP message */ - u_char igmp_code; /* unused, should be zero */ + 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) */ #define IGMP_MINLEN 8 -#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* message types, incl. version */ -#define IGMP_HOST_MEMBERSHIP_REPORT 0x12 -#define IGMP_DVMRP 0x13 /* for experimental multicast */ - /* routing protocol */ -#define IGMP_HOST_NEW_MEMBERSHIP_REPORT 0x16 -#define IGMP_HOST_LEAVE_MESSAGE 0x17 -#define IGMP_MTRACE 0x1f /* mcast traceroute messages */ -#define IGMP_MTRACE_RESP 0x1e /* traceroute resp. (to sender) */ +/* + * Message types, including version number. + */ +#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* Host membership query */ +#define IGMP_HOST_MEMBERSHIP_REPORT 0x12 /* Old membership report */ +#define IGMP_DVMRP 0x13 /* DVMRP routing message */ +#define IGMP_PIM 0x14 /* PIM routing message */ + +#define IGMP_HOST_NEW_MEMBERSHIP_REPORT 0x16 /* New membership report */ + +#define IGMP_HOST_LEAVE_MESSAGE 0x17 /* Leave-group 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) */ -#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ #define IGMP_TIMER_SCALE 10 /* denotes that the igmp->timer filed */ - /*specifies time in 10th os seconds */ + /*specifies time in tenths of seconds */ +/* + * States for the IGMPv2 state table + */ #define IGMP_DELAYING_MEMBER 1 #define IGMP_IDLE_MEMBER 2 -#define IGMP_LAZY_MEMBER 3 -#define IGMP_SLEEPING_MEMBER 4 -#define IGMP_AWAKENING_MEMBER 5 - +#define IGMP_LAZY_MEMBER 3 +#define IGMP_SLEEPING_MEMBER 4 +#define IGMP_AWAKENING_MEMBER 5 +/* + * We must remember whether the querier is an old or a new router. + */ #define IGMP_OLD_ROUTER 0 #define IGMP_NEW_ROUTER 1 -#define IGMP_AGE_THRESHOLD 540 +/* + * Revert to new router if we haven't heard from an old router in + * this amount of time. + */ +#define IGMP_AGE_THRESHOLD 540 -#ifdef IGMP_STATES -static char *tostate[]={"","DELAYING_MEMBER","IDLE","LAZY","SLEEPING", - "AWAKENING" }; -#endif /* IGMP_STATES */ #endif /* _NETINET_IGMP_H_ */ |
