| #ifndef _IGMP_H | |
| #define _IGMP_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 */ | |
| struct igmp { | |
| uint8_t type; | |
| uint8_t response_time; | |
| uint16_t chksum; | |
| 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; | |
| #endif /* _IGMP_H */ |