Commit a431327c authored by Guillaume Nault's avatar Guillaume Nault Committed by David S. Miller
Browse files

selftests: fcnal: Test SO_DONTROUTE on UDP sockets. 



Use nettest --client-dontroute to test the kernel behaviour with UDP
sockets having the SO_DONTROUTE option. Sending packets to a neighbour
(on link) host, should work. When the host is behind a router, sending
should fail.

Signed-off-by: default avatarGuillaume Nault <gnault@redhat.com>
Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dd017c72

tools/testing/selftests/net/fcnal-test.sh

+17 −0
Original line number Diff line number Diff line
@@ -1641,6 +1641,23 @@ ipv4_udp_novrf() 
	log_start

	run_cmd nettest -D -d ${NSA_DEV} -r ${a}

	log_test_addr ${a} $? 2 "No server, device client, local conn"



	#

	# Link local connection tests (SO_DONTROUTE).

	# Connections should succeed only when the remote IP address is

	# on link (doesn't need to be routed through a gateway).

	#



	a=${NSB_IP}

	log_start

	do_run_cmd nettest -B -D -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute

	log_test_addr ${a} $? 0 "SO_DONTROUTE client"



	a=${NSB_LO_IP}

	log_start

	show_hint "Should fail 'Network is unreachable' since server is not on link"

	do_run_cmd nettest -B -D -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute

	log_test_addr ${a} $? 1 "SO_DONTROUTE client"

}



ipv4_udp_vrf()