Cross Reference: igmp.h
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igmp.h
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#
ifndef
_IGMP_H
#
define
_IGMP_H
/* Max interval between IGMP packets */
#
define
IGMP_INTERVAL
(
10
*
TICKS_PER_SEC
)
#
define
IGMPv1_ROUTER_PRESENT_TIMEOUT
(
400
*
TICKS_PER_SEC
)
#
define
IGMP_QUERY
0x11
#
define
IGMPv1_REPORT
0x12
#
define
IGMPv2_REPORT
0x16
#
define
IGMP_LEAVE
0x17
#
define
GROUP_ALL_HOSTS
0xe0000001
/* 224.0.0.1 Host byte order */
struct
igmp
{
uint8_t
type
;
uint8_t
response_time
;
uint16_t
chksum
;
in_addr
group
;
};
struct
igmp_ip_t
{
/* Format of an igmp ip packet */
struct
iphdr
ip
;
uint8_t
router_alert
[
4
];
/* Router alert option */
struct
igmp
igmp
;
};
#
endif
/* _IGMP_H */