home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
AmigActive 10
/
AACD 10.iso
/
AACD
/
Resources
/
Online
/
Miami
/
MiamiSDK
/
netinclude
/
netinet
/
igmp.h
< prev
next >
Wrap
C/C++ Source or Header
|
1997-12-04
|
2KB
|
67 lines
#ifndef _NETINET_IGMP_H_
#define _NETINET_IGMP_H_
#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif
#ifndef _NETINET_IN_H_
#include <netinet/in.h>
#endif
/*
* IGMP packet format.
*/
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) */
#define IGMP_MINLEN 8
/*
* 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_TIMER_SCALE 10 /* denotes that the igmp->timer filed */
/*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
/*
* We must remember whether the querier is an old or a new router.
*/
#define IGMP_OLD_ROUTER 0
#define IGMP_NEW_ROUTER 1
/*
* Revert to new router if we haven't heard from an old router in
* this amount of time.
*/
#define IGMP_AGE_THRESHOLD 540
#endif /* _NETINET_IGMP_H_ */