• J
    ipv4: fix the reusing of routing cache entries · d547f727
    Julian Anastasov 提交于
    	compare_keys and ip_route_input_common rely on
    rt_oif for distinguishing of input and output routes
    with same keys values. But sometimes the input route has
    also same hash chain (keyed by iif != 0) with the output
    routes (keyed by orig_oif=0). Problem visible if running
    with small number of rhash_entries.
    
    	Fix them to use rt_route_iif instead. By this way
    input route can not be returned to users that request
    output route.
    
    	The patch fixes the ip_rt_bug errors that were
    reported in ip_local_out context, mostly for 255.255.255.255
    destinations.
    Signed-off-by: NJulian Anastasov <ja@ssi.bg>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    d547f727
route.c 82.2 KB