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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 */
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