/** * Sends a group specific member report query until the * group times out... */ static void sendGroupSpecificMemberQuery(void *argument) { struct Config *conf = getCommonConfig(); // Cast argument to correct type... GroupVifDesc *gvDesc = (GroupVifDesc*) argument; if(gvDesc->started) { // If aging returns false, we don't do any further action... if(!lastMemberGroupAge(gvDesc->group)) { return; } } else { gvDesc->started = 1; } // Send a group specific membership query... sendIgmp(gvDesc->vifAddr, gvDesc->group, IGMP_MEMBERSHIP_QUERY, conf->lastMemberQueryInterval * IGMP_TIMER_SCALE, gvDesc->group, 0); my_log(LOG_DEBUG, 0, "Sent membership query from %s to %s. Delay: %d", inetFmt(gvDesc->vifAddr,s1), inetFmt(gvDesc->group,s2), conf->lastMemberQueryInterval); // Set timeout for next round... timer_setTimer(conf->lastMemberQueryInterval, sendGroupSpecificMemberQuery, gvDesc); }
/** * Sends a general membership query on downstream VIFs */ void sendGeneralMembershipQuery() { struct Config *conf = getCommonConfig(); struct IfDesc *Dp; unsigned Ix; #ifdef RALINK_ESW_SUPPORT clear_all_entries_report(); #endif // Loop through all downstream vifs... for ( Ix = 0; (Dp = getIfByIx(Ix)); Ix++ ) { if ( Dp->InAdr.s_addr && ! (Dp->Flags & IFF_LOOPBACK) ) { if(Dp->state == IF_STATE_DOWNSTREAM) { // Send the membership query... sendIgmp(Dp->InAdr.s_addr, allhosts_group, IGMP_MEMBERSHIP_QUERY, conf->queryResponseInterval * IGMP_TIMER_SCALE, 0, 0); my_log(LOG_DEBUG, 0, "Sent membership query from %s to %s. Delay: %d", inetFmt(Dp->InAdr.s_addr,s1), inetFmt(allhosts_group,s2), conf->queryResponseInterval); } } } // Install timer for aging active routes. timer_setTimer(conf->queryResponseInterval, ageActiveRoutes, NULL); // Install timer for next general query... if(conf->startupQueryCount>0) { // Use quick timer... timer_setTimer(conf->startupQueryInterval, sendGeneralMembershipQuery, NULL); // Decrease startup counter... conf->startupQueryCount--; } else { // Use slow timer... timer_setTimer(conf->queryInterval, sendGeneralMembershipQuery, NULL); } }