Commit eae1e92a authored by Petr Machata's avatar Petr Machata Committed by Paolo Abeni
Browse files

selftests: test_vxlan_fdb_changelink: Add a test for MC remote change 



Changes to MC remote need to be reflected in actual group memberships.
Add a test to verify that it is the case.

Signed-off-by: default avatarPetr Machata <petrm@nvidia.com>
Reviewed-by: default avatarIdo Schimmel <idosch@nvidia.com>
Reviewed-by: default avatarNikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 24adf47e

tools/testing/selftests/net/test_vxlan_fdb_changelink.sh

+76 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 


ALL_TESTS="

	test_set_remote

	test_change_mc_remote

"

source lib.sh
@@ -31,6 +32,81 @@ test_set_remote() 
	log_test 'FDB default-remote handling across "ip link set"'

}



fmt_remote()

{

	local addr=$1; shift



	if [[ $addr == 224.* ]]; then

		echo "group $addr"

	else

		echo "remote $addr"

	fi

}



change_remote()

{

	local remote=$1; shift



	ip link set dev vx type vxlan $(fmt_remote $remote) dev v1

}



check_membership()

{

	local check_vec=("$@")



	local memberships

	memberships=$(

	    netstat -n --groups |

		sed -n '/^v1\b/p' |

		grep -o '[^ ]*$'

	)

	check_err $? "Couldn't obtain group memberships"



	local item

	for item in "${check_vec[@]}"; do

		eval "local $item"

		echo "$memberships" | grep -q "\b$group\b"

		check_err_fail $fail $? "$group is_ex reported in IGMP query response"

	done

}



test_change_mc_remote()

{

	check_command netstat || return



	ip_link_add v1 up type veth peer name v2

	ip_link_set_up v2



	RET=0



	ip_link_add vx up type vxlan dstport 4789 \

		local 192.0.2.1 $(fmt_remote 224.1.1.1) dev v1 vni 1000



	check_membership "group=224.1.1.1 fail=0" \

			 "group=224.1.1.2 fail=1" \

			 "group=224.1.1.3 fail=1"



	log_test "MC group report after VXLAN creation"



	RET=0



	change_remote 224.1.1.2

	check_membership "group=224.1.1.1 fail=1" \

			 "group=224.1.1.2 fail=0" \

			 "group=224.1.1.3 fail=1"



	log_test "MC group report after changing VXLAN remote MC->MC"



	RET=0



	change_remote 192.0.2.2

	check_membership "group=224.1.1.1 fail=1" \

			 "group=224.1.1.2 fail=1" \

			 "group=224.1.1.3 fail=1"



	log_test "MC group report after changing VXLAN remote MC->UC"

}



trap defer_scopes_cleanup EXIT



tests_run