Commit 438a9a85 authored by David Ahern's avatar David Ahern Committed by David S. Miller
Browse files

selftests: pmtu: Add support for routing via nexthop objects 



Add routing setup using nexthop objects and repeat tests with
old and new routing.

Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Reviewed-by: default avatarStefano Brivio <sbrivio@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f4ca0c34

tools/testing/selftests/net/pmtu.sh

+126 −32
Original line number Diff line number Diff line
@@ -123,34 +123,35 @@ TRACING=0 
# Some systems don't have a ping6 binary anymore

which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)



#               Name                          Description                  re-run with nh

tests="

	pmtu_ipv4_exception		ipv4: PMTU exceptions

	pmtu_ipv6_exception		ipv6: PMTU exceptions

	pmtu_ipv4_vxlan4_exception	IPv4 over vxlan4: PMTU exceptions

	pmtu_ipv6_vxlan4_exception	IPv6 over vxlan4: PMTU exceptions

	pmtu_ipv4_vxlan6_exception	IPv4 over vxlan6: PMTU exceptions

	pmtu_ipv6_vxlan6_exception	IPv6 over vxlan6: PMTU exceptions

	pmtu_ipv4_geneve4_exception	IPv4 over geneve4: PMTU exceptions

	pmtu_ipv6_geneve4_exception	IPv6 over geneve4: PMTU exceptions

	pmtu_ipv4_geneve6_exception	IPv4 over geneve6: PMTU exceptions

	pmtu_ipv6_geneve6_exception	IPv6 over geneve6: PMTU exceptions

	pmtu_ipv4_fou4_exception	IPv4 over fou4: PMTU exceptions

	pmtu_ipv6_fou4_exception	IPv6 over fou4: PMTU exceptions

	pmtu_ipv4_fou6_exception	IPv4 over fou6: PMTU exceptions

	pmtu_ipv6_fou6_exception	IPv6 over fou6: PMTU exceptions

	pmtu_ipv4_gue4_exception	IPv4 over gue4: PMTU exceptions

	pmtu_ipv6_gue4_exception	IPv6 over gue4: PMTU exceptions

	pmtu_ipv4_gue6_exception	IPv4 over gue6: PMTU exceptions

	pmtu_ipv6_gue6_exception	IPv6 over gue6: PMTU exceptions

	pmtu_vti6_exception		vti6: PMTU exceptions

	pmtu_vti4_exception		vti4: PMTU exceptions

	pmtu_vti4_default_mtu		vti4: default MTU assignment

	pmtu_vti6_default_mtu		vti6: default MTU assignment

	pmtu_vti4_link_add_mtu		vti4: MTU setting on link creation

	pmtu_vti6_link_add_mtu		vti6: MTU setting on link creation

	pmtu_vti6_link_change_mtu	vti6: MTU changes on link changes

	cleanup_ipv4_exception		ipv4: cleanup of cached exceptions

	cleanup_ipv6_exception		ipv6: cleanup of cached exceptions"

	pmtu_ipv4_exception		ipv4: PMTU exceptions			1

	pmtu_ipv6_exception		ipv6: PMTU exceptions			1

	pmtu_ipv4_vxlan4_exception	IPv4 over vxlan4: PMTU exceptions	1

	pmtu_ipv6_vxlan4_exception	IPv6 over vxlan4: PMTU exceptions	1

	pmtu_ipv4_vxlan6_exception	IPv4 over vxlan6: PMTU exceptions	1

	pmtu_ipv6_vxlan6_exception	IPv6 over vxlan6: PMTU exceptions	1

	pmtu_ipv4_geneve4_exception	IPv4 over geneve4: PMTU exceptions	1

	pmtu_ipv6_geneve4_exception	IPv6 over geneve4: PMTU exceptions	1

	pmtu_ipv4_geneve6_exception	IPv4 over geneve6: PMTU exceptions	1

	pmtu_ipv6_geneve6_exception	IPv6 over geneve6: PMTU exceptions	1

	pmtu_ipv4_fou4_exception	IPv4 over fou4: PMTU exceptions		1

	pmtu_ipv6_fou4_exception	IPv6 over fou4: PMTU exceptions		1

	pmtu_ipv4_fou6_exception	IPv4 over fou6: PMTU exceptions		1

	pmtu_ipv6_fou6_exception	IPv6 over fou6: PMTU exceptions		1

	pmtu_ipv4_gue4_exception	IPv4 over gue4: PMTU exceptions		1

	pmtu_ipv6_gue4_exception	IPv6 over gue4: PMTU exceptions		1

	pmtu_ipv4_gue6_exception	IPv4 over gue6: PMTU exceptions		1

	pmtu_ipv6_gue6_exception	IPv6 over gue6: PMTU exceptions		1

	pmtu_vti6_exception		vti6: PMTU exceptions			0

	pmtu_vti4_exception		vti4: PMTU exceptions			0

	pmtu_vti4_default_mtu		vti4: default MTU assignment		0

	pmtu_vti6_default_mtu		vti6: default MTU assignment		0

	pmtu_vti4_link_add_mtu		vti4: MTU setting on link creation	0

	pmtu_vti6_link_add_mtu		vti6: MTU setting on link creation	0

	pmtu_vti6_link_change_mtu	vti6: MTU changes on link changes	0

	cleanup_ipv4_exception		ipv4: cleanup of cached exceptions	1

	cleanup_ipv6_exception		ipv6: cleanup of cached exceptions	1"



NS_A="ns-A"

NS_B="ns-B"
@@ -194,6 +195,30 @@ routes=" 
	B	default			${prefix6}:${b_r1}::2

"



USE_NH="no"

#	ns	family	nh id	   destination		gateway

nexthops="

	A	4	41	${prefix4}.${a_r1}.2	veth_A-R1

	A	4	42	${prefix4}.${a_r2}.2	veth_A-R2

	B	4	41	${prefix4}.${b_r1}.2	veth_B-R1



	A	6	61	${prefix6}:${a_r1}::2	veth_A-R1

	A	6	62	${prefix6}:${a_r2}::2	veth_A-R2

	B	6	61	${prefix6}:${b_r1}::2	veth_B-R1

"



# nexthop id correlates to id in nexthops config above

#	ns    family	prefix			nh id

routes_nh="

	A	4	default			41

	A	4	${prefix4}.${b_r2}.1	42

	B	4	default			41



	A	6	default			61

	A	6	${prefix6}:${b_r2}::1	62

	B	6	default			61

"



veth4_a_addr="192.168.1.1"

veth4_b_addr="192.168.1.2"

veth4_mask="24"
@@ -462,6 +487,36 @@ setup_routing_old() { 
	done

}



setup_routing_new() {

	for i in ${nexthops}; do

		[ "${ns}" = "" ]	&& ns="${i}"		&& continue

		[ "${fam}" = "" ]	&& fam="${i}"		&& continue

		[ "${nhid}" = "" ]	&& nhid="${i}"		&& continue

		[ "${gw}" = "" ]	&& gw="${i}"		&& continue

		[ "${dev}" = "" ]	&& dev="${i}"



		ns_name="$(nsname ${ns})"



		ip -n ${ns_name} -${fam} nexthop add id ${nhid} via ${gw} dev ${dev}



		ns=""; fam=""; nhid=""; gw=""; dev=""



	done



	for i in ${routes_nh}; do

		[ "${ns}" = "" ]	&& ns="${i}"		&& continue

		[ "${fam}" = "" ]	&& fam="${i}"		&& continue

		[ "${addr}" = "" ]	&& addr="${i}"		&& continue

		[ "${nhid}" = "" ]	&& nhid="${i}"



		ns_name="$(nsname ${ns})"



		ip -n ${ns_name} -${fam} route add ${addr} nhid ${nhid}



		ns=""; fam=""; addr=""; nhid=""

	done

}



setup_routing() {

	for i in ${NS_R1} ${NS_R2}; do

		ip netns exec ${i} sysctl -q net/ipv4/ip_forward=1
@@ -492,7 +547,13 @@ setup_routing() { 
		ns=""; peer=""; segment=""

	done



	if [ "$USE_NH" = "yes" ]; then

		setup_routing_new

	else

		setup_routing_old

	fi



	return 0

}



setup() {
@@ -1126,7 +1187,19 @@ run_test() { 


	return $ret

	)

	[ $? -ne 0 ] && exitcode=1

	ret=$?

	[ $ret -ne 0 ] && exitcode=1



	return $ret

}



run_test_nh() {

	tname="$1"

	tdesc="$2"



	USE_NH=yes

	run_test "${tname}" "${tdesc} - nexthop objects"

	USE_NH=no

}



usage() {
@@ -1175,8 +1248,20 @@ trap cleanup EXIT 
# start clean

cleanup



HAVE_NH=no

ip nexthop ls >/dev/null 2>&1

[ $? -eq 0 ] && HAVE_NH=yes



name=""

desc=""

rerun_nh=0

for t in ${tests}; do

	[ $desc -eq 0 ] && name="${t}" && desc=1 && continue || desc=0

	[ "${name}" = "" ]	&& name="${t}"	&& continue

	[ "${desc}" = "" ]	&& desc="${t}"	&& continue



	if [ "${HAVE_NH}" = "yes" ]; then

		rerun_nh="${t}"

	fi



	run_this=1

	for arg do
@@ -1184,9 +1269,18 @@ for t in ${tests}; do 
		[ "${arg}" = "${name}" ] && run_this=1 && break

		run_this=0

	done

	[ $run_this -eq 0 ] && continue

	if [ $run_this -eq 1 ]; then

		run_test "${name}" "${desc}"

		# if test was skipped no need to retry with nexthop objects

		[ $? -eq 2 ] && rerun_nh=0



	run_test "${name}" "${t}"

		if [ "${rerun_nh}" = "1" ]; then

			run_test_nh "${name}" "${desc}"

		fi

	fi

	name=""

	desc=""

	rerun_nh=0

done



exit ${exitcode}