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
16 along with this program; see the file COPYING; if not, write to the
17 Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
31 #define IGMP_V3_CHECKSUM_OFFSET (2)
32 #define IGMP_V3_REPORT_NUMGROUPS_OFFSET (6)
33 #define IGMP_V3_REPORT_GROUPPRECORD_OFFSET (8)
34 #define IGMP_V3_NUMSOURCES_OFFSET (10)
35 #define IGMP_V3_SOURCES_OFFSET (12)
37 #define IGMP_GRP_REC_TYPE_MODE_IS_INCLUDE (1)
38 #define IGMP_GRP_REC_TYPE_MODE_IS_EXCLUDE (2)
39 #define IGMP_GRP_REC_TYPE_CHANGE_TO_INCLUDE_MODE (3)
40 #define IGMP_GRP_REC_TYPE_CHANGE_TO_EXCLUDE_MODE (4)
41 #define IGMP_GRP_REC_TYPE_ALLOW_NEW_SOURCES (5)
42 #define IGMP_GRP_REC_TYPE_BLOCK_OLD_SOURCES (6)
44 /* GMI: Group Membership Interval */
45 #define PIM_IGMP_GMI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * (qri_dsec))
47 /* OQPI: Other Querier Present Interval */
48 #define PIM_IGMP_OQPI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * ((qri_dsec) >> 1))
50 /* SQI: Startup Query Interval */
51 #define PIM_IGMP_SQI(qi) (((qi) < 4) ? 1 : ((qi) >> 2))
53 /* LMQT: Last Member Query Time */
54 #define PIM_IGMP_LMQT_MSEC(lmqi_dsec, lmqc) ((lmqc) * (100 * (lmqi_dsec)))
56 /* OHPI: Older Host Present Interval */
57 #define PIM_IGMP_OHPI_DSEC(qrv,qqi,qri_dsec) ((qrv) * (10 * (qqi)) + (qri_dsec))
59 void igmp_group_reset_gmi(struct igmp_group
*group
);
60 void igmp_source_reset_gmi(struct igmp_sock
*igmp
,
61 struct igmp_group
*group
,
62 struct igmp_source
*source
);
64 void igmp_source_free(struct igmp_source
*source
);
65 void igmp_source_delete(struct igmp_source
*source
);
66 void igmp_source_delete_expired(struct list
*source_list
);
68 void igmpv3_report_isin(struct igmp_sock
*igmp
, struct in_addr from
,
69 struct in_addr group_addr
,
70 int num_sources
, struct in_addr
*sources
);
71 void igmpv3_report_isex(struct igmp_sock
*igmp
, struct in_addr from
,
72 struct in_addr group_addr
,
73 int num_sources
, struct in_addr
*sources
,
74 int from_igmp_v2_report
);
75 void igmpv3_report_toin(struct igmp_sock
*igmp
, struct in_addr from
,
76 struct in_addr group_addr
,
77 int num_sources
, struct in_addr
*sources
);
78 void igmpv3_report_toex(struct igmp_sock
*igmp
, struct in_addr from
,
79 struct in_addr group_addr
,
80 int num_sources
, struct in_addr
*sources
);
81 void igmpv3_report_allow(struct igmp_sock
*igmp
, struct in_addr from
,
82 struct in_addr group_addr
,
83 int num_sources
, struct in_addr
*sources
);
84 void igmpv3_report_block(struct igmp_sock
*igmp
, struct in_addr from
,
85 struct in_addr group_addr
,
86 int num_sources
, struct in_addr
*sources
);
88 void igmp_group_timer_lower_to_lmqt(struct igmp_group
*group
);
89 void igmp_source_timer_lower_to_lmqt(struct igmp_source
*source
);
91 struct igmp_source
*igmp_find_source_by_addr(struct igmp_group
*group
,
92 struct in_addr src_addr
);
94 void igmp_v3_send_query (struct igmp_group
*group
,
100 struct in_addr dst_addr
,
101 struct in_addr group_addr
,
102 int query_max_response_time_dsec
,
104 uint8_t querier_robustness_variable
,
105 uint16_t querier_query_interval
);
107 void igmp_v3_recv_query (struct igmp_sock
*igmp
, const char *from_str
,
110 int igmp_v3_recv_report (struct igmp_sock
*igmp
,
111 struct in_addr from
, const char *from_str
,
112 char *igmp_msg
, int igmp_msg_len
);
114 #endif /* PIM_IGMPV3_H */