Commit b7092165 authored Apr 14, 2016 by Sridhar Ancha Committed by Mohammed Javid Nov 03, 2017

net: core: To send ARP probe when neighbor state is NUD_STALE



Featurizing to send an ARP probe to the connected client when
the neighbor state moves to NUD_STALE. This triggers the
neighbor state to move back to NUD_REACHABLE if the ARP request
is resolved and prevents a RTM_DELNEIGH from being triggered

Change-Id: I27aba004a180dfbff5b1fcee2d04047c8523fb8a
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>
Acked-by: Sudhanshu Singh <sudhsing@qti.qualcomm.com>

parent f797d13b

net/core/neighbour.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -941,7 +941,11 @@ static void neigh_timer_handler(unsigned long arg)
		if (!mod_timer(&neigh->timer, next))
		neigh_hold(neigh);
		}
		if (neigh->nud_state & (NUD_INCOMPLETE \| NUD_PROBE \| NUD_STALE)) {

		if (neigh_probe_enable) {
		if (neigh->nud_state & (NUD_INCOMPLETE \| NUD_PROBE \| NUD_STALE))
		neigh_probe(neigh);
		} else if (neigh->nud_state & (NUD_INCOMPLETE \| NUD_PROBE)) {
		neigh_probe(neigh);
		} else {
		out: