When OLSRd crashes, the old tunnels still exist. This can lead to unexpected behaviour.
The tunnels to be removed start with "tnl_"
See freifunk-berlin/firmware#522
Signed-off-by: pmelange <isprotejesvalkata@gmail.com>
if not wdgtime or ( systime - wdgtime ) > ( intv * 2 ) then
os.execute("logger -t 'OLSR watchdog' 'Process died - restarting!'")
+ local tnls = io.popen("ip tunnel show | cut -d : -f 1")
+ while true do
+ tnl = tnls:read("*line")
+ if tnl == nil then break end
+ if string.find(tnl, "tnl_") == 1 then
+ os.execute(string.format("logger -t 'OLSR watchdog' 'Deleting stale tunnel %s'", tnl))
+ os.execute(string.format("ip link del %s", tnl))
+ end
+ end
os.execute("/etc/init.d/olsrd restart")
end
end