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quagga 1.0.20160315

    1: /*
    2:   PIM for Quagga
    3:   Copyright (C) 2008  Everton da Silva Marques
    4: 
    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.
    9: 
   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.
   14:   
   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,
   18:   MA 02110-1301 USA
   19:   
   20:   $QuaggaId: $Format:%an, %ai, %h$ $
   21: */
   22: 
   23: #ifndef PIM_IGMPV3_H
   24: #define PIM_IGMPV3_H
   25: 
   26: #include <zebra.h>
   27: #include "if.h"
   28: 
   29: #define IGMP_V3_CHECKSUM_OFFSET            (2)
   30: #define IGMP_V3_REPORT_NUMGROUPS_OFFSET    (6)
   31: #define IGMP_V3_REPORT_GROUPPRECORD_OFFSET (8)
   32: #define IGMP_V3_NUMSOURCES_OFFSET          (10)
   33: #define IGMP_V3_SOURCES_OFFSET             (12)
   34: 
   35: /* GMI: Group Membership Interval */
   36: #define PIM_IGMP_GMI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * (qri_dsec))
   37: 
   38: /* OQPI: Other Querier Present Interval */
   39: #define PIM_IGMP_OQPI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * ((qri_dsec) >> 1))
   40: 
   41: /* SQI: Startup Query Interval */
   42: #define PIM_IGMP_SQI(qi) (((qi) < 4) ? 1 : ((qi) >> 2))
   43: 
   44: /* LMQT: Last Member Query Time */
   45: #define PIM_IGMP_LMQT_MSEC(lmqi_dsec, lmqc) ((lmqc) * (100 * (lmqi_dsec)))
   46: 
   47: /* OHPI: Older Host Present Interval */
   48: #define PIM_IGMP_OHPI_DSEC(qrv,qqi,qri_dsec) ((qrv) * (10 * (qqi)) + (qri_dsec))
   49: 
   50: void igmp_group_reset_gmi(struct igmp_group *group);
   51: void igmp_source_reset_gmi(struct igmp_sock *igmp,
   52: 			   struct igmp_group *group,
   53: 			   struct igmp_source *source);
   54: 
   55: void igmp_source_free(struct igmp_source *source);
   56: void igmp_source_delete(struct igmp_source *source);
   57: void igmp_source_delete_expired(struct list *source_list);
   58: 
   59: int igmp_group_compat_mode(const struct igmp_sock *igmp,
   60: 			   const struct igmp_group *group);
   61: 
   62: void igmpv3_report_isin(struct igmp_sock *igmp, struct in_addr from,
   63: 			struct in_addr group_addr,
   64: 			int num_sources, struct in_addr *sources);
   65: void igmpv3_report_isex(struct igmp_sock *igmp, struct in_addr from,
   66: 			struct in_addr group_addr,
   67: 			int num_sources, struct in_addr *sources);
   68: void igmpv3_report_toin(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_toex(struct igmp_sock *igmp, struct in_addr from,
   72: 			struct in_addr group_addr,
   73: 			int num_sources, struct in_addr *sources);
   74: void igmpv3_report_allow(struct igmp_sock *igmp, struct in_addr from,
   75: 			 struct in_addr group_addr,
   76: 			 int num_sources, struct in_addr *sources);
   77: void igmpv3_report_block(struct igmp_sock *igmp, struct in_addr from,
   78: 			 struct in_addr group_addr,
   79: 			 int num_sources, struct in_addr *sources);
   80: 
   81: void igmp_group_timer_lower_to_lmqt(struct igmp_group *group);
   82: void igmp_source_timer_lower_to_lmqt(struct igmp_source *source);
   83: 
   84: struct igmp_source *igmp_find_source_by_addr(struct igmp_group *group,
   85: 					     struct in_addr src_addr);
   86: 
   87: void pim_igmp_send_membership_query(struct igmp_group *group,
   88: 				    int fd,
   89: 				    const char *ifname,
   90: 				    char *query_buf,
   91: 				    int query_buf_size,
   92: 				    int num_sources,
   93: 				    struct in_addr dst_addr,
   94: 				    struct in_addr group_addr,
   95: 				    int query_max_response_time_dsec,
   96: 				    uint8_t s_flag,
   97: 				    uint8_t querier_robustness_variable,
   98: 				    uint16_t querier_query_interval);
   99: 
  100: #endif /* PIM_IGMPV3_H */