3 * Copyright (C) 2008 Everton da Silva Marques
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #define IGMP_V3_CHECKSUM_OFFSET (2)
27 #define IGMP_V3_REPORT_NUMGROUPS_OFFSET (6)
28 #define IGMP_V3_REPORT_GROUPPRECORD_OFFSET (8)
29 #define IGMP_V3_NUMSOURCES_OFFSET (10)
30 #define IGMP_V3_SOURCES_OFFSET (12)
32 #define IGMP_GRP_REC_TYPE_MODE_IS_INCLUDE (1)
33 #define IGMP_GRP_REC_TYPE_MODE_IS_EXCLUDE (2)
34 #define IGMP_GRP_REC_TYPE_CHANGE_TO_INCLUDE_MODE (3)
35 #define IGMP_GRP_REC_TYPE_CHANGE_TO_EXCLUDE_MODE (4)
36 #define IGMP_GRP_REC_TYPE_ALLOW_NEW_SOURCES (5)
37 #define IGMP_GRP_REC_TYPE_BLOCK_OLD_SOURCES (6)
39 /* GMI: Group Membership Interval */
40 #define PIM_IGMP_GMI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * (qri_dsec))
42 /* OQPI: Other Querier Present Interval */
43 #define PIM_IGMP_OQPI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * ((qri_dsec) >> 1))
45 /* SQI: Startup Query Interval */
46 #define PIM_IGMP_SQI(qi) (((qi) < 4) ? 1 : ((qi) >> 2))
48 /* LMQT: Last Member Query Time */
49 #define PIM_IGMP_LMQT_MSEC(lmqi_dsec, lmqc) ((lmqc) * (100 * (lmqi_dsec)))
51 /* OHPI: Older Host Present Interval */
52 #define PIM_IGMP_OHPI_DSEC(qrv,qqi,qri_dsec) ((qrv) * (10 * (qqi)) + (qri_dsec))
54 void igmp_group_reset_gmi(struct igmp_group
*group
);
55 void igmp_source_reset_gmi(struct igmp_sock
*igmp
,
56 struct igmp_group
*group
,
57 struct igmp_source
*source
);
59 void igmp_source_free(struct igmp_source
*source
);
60 void igmp_source_delete(struct igmp_source
*source
);
61 void igmp_source_delete_expired(struct list
*source_list
);
63 void igmpv3_report_isin(struct igmp_sock
*igmp
, struct in_addr from
,
64 struct in_addr group_addr
,
65 int num_sources
, struct in_addr
*sources
);
66 void igmpv3_report_isex(struct igmp_sock
*igmp
, struct in_addr from
,
67 struct in_addr group_addr
,
68 int num_sources
, struct in_addr
*sources
,
69 int from_igmp_v2_report
);
70 void igmpv3_report_toin(struct igmp_sock
*igmp
, struct in_addr from
,
71 struct in_addr group_addr
,
72 int num_sources
, struct in_addr
*sources
);
73 void igmpv3_report_toex(struct igmp_sock
*igmp
, struct in_addr from
,
74 struct in_addr group_addr
,
75 int num_sources
, struct in_addr
*sources
);
76 void igmpv3_report_allow(struct igmp_sock
*igmp
, struct in_addr from
,
77 struct in_addr group_addr
,
78 int num_sources
, struct in_addr
*sources
);
79 void igmpv3_report_block(struct igmp_sock
*igmp
, struct in_addr from
,
80 struct in_addr group_addr
,
81 int num_sources
, struct in_addr
*sources
);
83 void igmp_group_timer_lower_to_lmqt(struct igmp_group
*group
);
84 void igmp_source_timer_lower_to_lmqt(struct igmp_source
*source
);
86 struct igmp_source
*igmp_find_source_by_addr(struct igmp_group
*group
,
87 struct in_addr src_addr
);
89 void igmp_v3_send_query (struct igmp_group
*group
,
95 struct in_addr dst_addr
,
96 struct in_addr group_addr
,
97 int query_max_response_time_dsec
,
99 uint8_t querier_robustness_variable
,
100 uint16_t querier_query_interval
);
102 void igmp_v3_recv_query (struct igmp_sock
*igmp
, const char *from_str
,
105 int igmp_v3_recv_report (struct igmp_sock
*igmp
,
106 struct in_addr from
, const char *from_str
,
107 char *igmp_msg
, int igmp_msg_len
);
109 #endif /* PIM_IGMPV3_H */