/**
* 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);
}
}
