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Message-Id: <20190601033618.27702-26-dsahern@kernel.org>
Date: Fri, 31 May 2019 20:36:16 -0700
From: David Ahern <dsahern@...nel.org>
To: davem@...emloft.net, netdev@...r.kernel.org
Cc: alexei.starovoitov@...il.com, David Ahern <dsahern@...il.com>
Subject: [PATCH RFC net-next 25/27] selftests: pmtu: Add support for routing via nexthop objects
From: David Ahern <dsahern@...il.com>
Add routing setup using nexthop objects and repeat tests with
old and new routing.
Signed-off-by: David Ahern <dsahern@...il.com>
---
tools/testing/selftests/net/pmtu.sh | 158 ++++++++++++++++++++++++++++--------
1 file changed, 126 insertions(+), 32 deletions(-)
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index 14ffcf490032..9e6d8b704186 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -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 ${i} sysctl -q net/ipv4/ip_forward=1
@@ -492,7 +547,13 @@ setup_routing() {
ns=""; peer=""; segment=""
done
- setup_routing_old
+ if [ "$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}
--
2.11.0
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