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Degrade link score to zero within 20 seconds

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This commit is contained in:
Jeremy Lakeman 2012-11-16 15:54:01 +10:30
parent 1df18ae43d
commit 3dc831481e
2 changed files with 31 additions and 28 deletions
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57
overlay_address.c
View File

@ -168,38 +168,41 @@ int subscriber_is_reachable(struct subscriber *subscriber){
if (!subscriber)
return REACHABLE_NONE;
// is there a default route?
if (subscriber->reachable==REACHABLE_NONE &&
int ret = subscriber->reachable;
if (ret==REACHABLE_INDIRECT){
if (!subscriber->next_hop)
ret = REACHABLE_NONE;
// avoid infinite recursion...
else if (subscriber->next_hop->reachable!=REACHABLE_DIRECT &&
subscriber->next_hop->reachable!=REACHABLE_UNICAST)
ret = REACHABLE_NONE;
else{
int r = subscriber_is_reachable(subscriber->next_hop);
if (r!=REACHABLE_DIRECT && r!= REACHABLE_UNICAST)
ret = REACHABLE_NONE;
}
}
if (ret==REACHABLE_DIRECT ||
ret==REACHABLE_UNICAST){
// make sure the interface is still up
if (!subscriber->interface)
ret=REACHABLE_NONE;
else if (subscriber->interface->state!=INTERFACE_STATE_UP)
ret=REACHABLE_NONE;
}
// after all of that, should we use a default route?
if (ret==REACHABLE_NONE &&
directory_service &&
subscriber!=directory_service &&
subscriber_is_reachable(directory_service)!=REACHABLE_NONE){
return REACHABLE_DEFAULT_ROUTE;
ret = REACHABLE_DEFAULT_ROUTE;
}
if (subscriber->reachable==REACHABLE_INDIRECT){
if (!subscriber->next_hop)
return REACHABLE_NONE;
// avoid infinite recursion...
if (subscriber->next_hop->reachable!=REACHABLE_DIRECT &&
subscriber->next_hop->reachable!=REACHABLE_UNICAST)
return REACHABLE_NONE;
int r = subscriber_is_reachable(subscriber->next_hop);
if (r!=REACHABLE_DIRECT && r!= REACHABLE_UNICAST)
return REACHABLE_NONE;
}
if (subscriber->reachable==REACHABLE_DIRECT ||
subscriber->reachable==REACHABLE_UNICAST){
// make sure the interface is still up
if (!subscriber->interface)
return REACHABLE_NONE;
if (subscriber->interface->state!=INTERFACE_STATE_UP)
return REACHABLE_NONE;
}
return subscriber->reachable;
return ret;
}
int set_reachable(struct subscriber *subscriber, int reachable){

2
overlay_route.c
View File

@ -625,7 +625,7 @@ int overlay_route_recalc_neighbour_metrics(struct overlay_neighbour *n, time_ms_
50KB per 12 hours, which is the minimum traffic charge rate
on an expensive BGAN satellite link.
*/
if (interval>=3600000 || obs_age>200000)
if (interval>=3600000 || obs_age>20000)
continue;
if (debug&DEBUG_OVERLAYROUTING)