/**
* Updates the Kernel routing table. If activate is 1, the route
* is (re-)activated. If activate is false, the route is removed.
*/
int internUpdateKernelRoute(struct RouteTable *route, int activate)
{
struct MRouteDesc mrDesc;
struct IfDesc *Dp;
unsigned Ix;
struct IfDesc* upstrIf;
// Get the upstream VIF...
upstrIf = getIfByIx( upStreamVif );
if(upstrIf == NULL)
atlog(LOG_ERR, 0 ,"FATAL: Unable to get Upstream IF.");
if( IN6_ARE_ADDR_EQUAL( &(route->group), &allzero_addr ) )
return 1;
if( IN6_ARE_ADDR_EQUAL( &(route->originAddr), &allzero_addr ) )
return 1;
// Build route descriptor from table entry...
// Set the source address and group address...
mrDesc.McAdr.sin6_addr = route->group;
mrDesc.McAdr.sin6_family = AF_INET6;
mrDesc.McAdr.sin6_flowinfo = 0;
mrDesc.McAdr.sin6_port = 0;
mrDesc.McAdr.sin6_scope_id = upstrIf->index;
mrDesc.OriginAdr.sin6_addr = route->originAddr;
// clear output interfaces
memset( mrDesc.TtlVc, 0, sizeof( mrDesc.TtlVc ) );
IF_DEBUG atlog(LOG_DEBUG, 0, "Vif bits : 0x%08x", route->vifBits);
for( Ix = 0 ; Ix < MAXMIFS; Ix++ )
{
Dp = getIfDescFromMifByIx(Ix);
if (Dp == NULL)
break;
if ( Dp->state == IF_STATE_UPSTREAM )
mrDesc.InVif = Ix;
else if(BIT_TST(route->vifBits, Dp->index))
{
mrDesc.TtlVc[ Ix ] = Dp->threshold;
}
}
// Do the actual Kernel route update...
if(activate)
{
// Add route in kernel...
addMRoute( &mrDesc );
}
else
{
// Delete the route from Kernel...
delMRoute( &mrDesc );
}
return 1;
}
int igmp_del_mr( __u32 group, __u32 src )
{
struct MRouteDesc mrd;
int ret=0;
/* delete multicast routing entry */
if(src){
mrd.OriginAdr.s_addr = src;
}
else{
mrd.OriginAdr.s_addr =igmp_up_if_idx;
}
//mrd.OriginAdr.s_addr = src;
mrd.McAdr.s_addr = group;
mrd.InVif = igmp_up_if_idx;
memset(mrd.TtlVc, 0, sizeof(mrd.TtlVc));
IGMPV3LOG( "%s> group:%s", __FUNCTION__, inet_ntoa(mrd.McAdr) );
IGMPV3LOG( ", src:%s\n", inet_ntoa(mrd.OriginAdr) );
delMRoute(&mrd);
return ret;
}
/**
* Updates the Kernel routing table. If activate is 1, the route
* is (re-)activated. If activate is false, the route is removed.
*/
int internUpdateKernelRoute(struct RouteTable *route, int activate) {
struct MRouteDesc mrDesc;
struct IfDesc *Dp;
unsigned Ix;
int i;
for (int i = 0; i < MAX_ORIGINS; i++) {
if (route->originAddrs[i] == 0 || route->upstrVif == -1) {
continue;
}
// Build route descriptor from table entry...
// Set the source address and group address...
mrDesc.McAdr.s_addr = route->group;
mrDesc.OriginAdr.s_addr = route->originAddrs[i];
// clear output interfaces
memset( mrDesc.TtlVc, 0, sizeof( mrDesc.TtlVc ) );
my_log(LOG_DEBUG, 0, "Vif bits : 0x%08x", route->vifBits);
mrDesc.InVif = route->upstrVif;
// Set the TTL's for the route descriptor...
for ( Ix = 0; (Dp = getIfByIx(Ix)); Ix++ ) {
if(Dp->state == IF_STATE_UPSTREAM) {
continue;
}
else if(BIT_TST(route->vifBits, Dp->index)) {
my_log(LOG_DEBUG, 0, "Setting TTL for Vif %d to %d", Dp->index, Dp->threshold);
mrDesc.TtlVc[ Dp->index ] = Dp->threshold;
}
}
// Do the actual Kernel route update...
if(activate) {
// Add route in kernel...
addMRoute( &mrDesc );
} else {
// Delete the route from Kernel...
delMRoute( &mrDesc );
}
}
return 1;
}
