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112 lines
4.3 KiB
C
112 lines
4.3 KiB
C
/*
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PIM for Quagga
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Copyright (C) 2008 Everton da Silva Marques
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING; if not, write to the
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Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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MA 02110-1301 USA
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*/
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#ifndef PIM_IGMPV3_H
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#define PIM_IGMPV3_H
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#include <zebra.h>
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#include "if.h"
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#define IGMP_V3_CHECKSUM_OFFSET (2)
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#define IGMP_V3_REPORT_NUMGROUPS_OFFSET (6)
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#define IGMP_V3_REPORT_GROUPPRECORD_OFFSET (8)
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#define IGMP_V3_NUMSOURCES_OFFSET (10)
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#define IGMP_V3_SOURCES_OFFSET (12)
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#define IGMP_GRP_REC_TYPE_MODE_IS_INCLUDE (1)
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#define IGMP_GRP_REC_TYPE_MODE_IS_EXCLUDE (2)
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#define IGMP_GRP_REC_TYPE_CHANGE_TO_INCLUDE_MODE (3)
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#define IGMP_GRP_REC_TYPE_CHANGE_TO_EXCLUDE_MODE (4)
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#define IGMP_GRP_REC_TYPE_ALLOW_NEW_SOURCES (5)
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#define IGMP_GRP_REC_TYPE_BLOCK_OLD_SOURCES (6)
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/* GMI: Group Membership Interval */
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#define PIM_IGMP_GMI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * (qri_dsec))
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/* OQPI: Other Querier Present Interval */
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#define PIM_IGMP_OQPI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * ((qri_dsec) >> 1))
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/* SQI: Startup Query Interval */
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#define PIM_IGMP_SQI(qi) (((qi) < 4) ? 1 : ((qi) >> 2))
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/* LMQT: Last Member Query Time */
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#define PIM_IGMP_LMQT_MSEC(lmqi_dsec, lmqc) ((lmqc) * (100 * (lmqi_dsec)))
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/* OHPI: Older Host Present Interval */
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#define PIM_IGMP_OHPI_DSEC(qrv,qqi,qri_dsec) ((qrv) * (10 * (qqi)) + (qri_dsec))
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void igmp_group_reset_gmi(struct igmp_group *group);
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void igmp_source_reset_gmi(struct igmp_sock *igmp,
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struct igmp_group *group,
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struct igmp_source *source);
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void igmp_source_free(struct igmp_source *source);
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void igmp_source_delete(struct igmp_source *source);
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void igmp_source_delete_expired(struct list *source_list);
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void igmpv3_report_isin(struct igmp_sock *igmp, struct in_addr from,
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struct in_addr group_addr,
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int num_sources, struct in_addr *sources);
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void igmpv3_report_isex(struct igmp_sock *igmp, struct in_addr from,
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struct in_addr group_addr,
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int num_sources, struct in_addr *sources,
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int from_igmp_v2_report);
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void igmpv3_report_toin(struct igmp_sock *igmp, struct in_addr from,
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struct in_addr group_addr,
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int num_sources, struct in_addr *sources);
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void igmpv3_report_toex(struct igmp_sock *igmp, struct in_addr from,
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struct in_addr group_addr,
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int num_sources, struct in_addr *sources);
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void igmpv3_report_allow(struct igmp_sock *igmp, struct in_addr from,
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struct in_addr group_addr,
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int num_sources, struct in_addr *sources);
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void igmpv3_report_block(struct igmp_sock *igmp, struct in_addr from,
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struct in_addr group_addr,
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int num_sources, struct in_addr *sources);
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void igmp_group_timer_lower_to_lmqt(struct igmp_group *group);
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void igmp_source_timer_lower_to_lmqt(struct igmp_source *source);
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struct igmp_source *igmp_find_source_by_addr(struct igmp_group *group,
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struct in_addr src_addr);
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void igmp_v3_send_query (struct igmp_group *group,
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int fd,
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const char *ifname,
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char *query_buf,
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int query_buf_size,
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int num_sources,
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struct in_addr dst_addr,
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struct in_addr group_addr,
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int query_max_response_time_dsec,
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uint8_t s_flag,
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uint8_t querier_robustness_variable,
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uint16_t querier_query_interval);
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void igmp_v3_recv_query (struct igmp_sock *igmp, const char *from_str,
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char *igmp_msg);
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int igmp_v3_recv_report (struct igmp_sock *igmp,
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struct in_addr from, const char *from_str,
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char *igmp_msg, int igmp_msg_len);
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#endif /* PIM_IGMPV3_H */
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