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#ifndef IGMP_H
#define IGMP_H
#include "stdint.h"
#include <gpxe/in.h>
#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 */
#define MULTICAST_MASK 0xf0000000
#define MULTICAST_NETWORK 0xe0000000
enum {
IGMP_SERVER,
MAX_IGMP
};
struct igmp {
uint8_t type;
uint8_t response_time;
uint16_t chksum;
struct in_addr group;
} PACKED;
struct igmp_ip_t { /* Format of an igmp ip packet */
struct iphdr ip;
uint8_t router_alert[4]; /* Router alert option */
struct igmp igmp;
} PACKED;
struct igmptable_t {
struct in_addr group;
unsigned long time;
} PACKED;
extern void join_group ( int slot, unsigned long group );
extern void leave_group ( int slot );
#endif /* IGMP_H */
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