--- /dev/null
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Various combinations of VRF with xfrms and qdisc.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+ret=0
+
+HOST1_4=192.168.1.1
+HOST2_4=192.168.1.2
+HOST1_6=2001:db8:1::1
+HOST2_6=2001:db8:1::2
+
+XFRM1_4=10.0.1.1
+XFRM2_4=10.0.1.2
+XFRM1_6=fc00:1000::1
+XFRM2_6=fc00:1000::2
+IF_ID=123
+
+VRF=red
+TABLE=300
+
+AUTH_1=0xd94fcfea65fddf21dc6e0d24a0253508
+AUTH_2=0xdc6e0d24a0253508d94fcfea65fddf21
+ENC_1=0xfc46c20f8048be9725930ff3fb07ac2a91f0347dffeacf62
+ENC_2=0x3fb07ac2a91f0347dffeacf62fc46c20f8048be9725930ff
+SPI_1=0x02122b77
+SPI_2=0x2b770212
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+#
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ printf "TEST: %-60s [ OK ]\n" "${msg}"
+ nsuccess=$((nsuccess+1))
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf "TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+run_cmd_host1()
+{
+ local cmd="$*"
+ local out
+ local rc
+
+ if [ "$VERBOSE" = "1" ]; then
+ printf " COMMAND: $cmd\n"
+ fi
+
+ out=$(eval ip netns exec host1 $cmd 2>&1)
+ rc=$?
+ if [ "$VERBOSE" = "1" ]; then
+ if [ -n "$out" ]; then
+ echo
+ echo " $out"
+ fi
+ echo
+ fi
+
+ return $rc
+}
+
+################################################################################
+# create namespaces for hosts and sws
+
+create_vrf()
+{
+ local ns=$1
+ local vrf=$2
+ local table=$3
+
+ if [ -n "${ns}" ]; then
+ ns="-netns ${ns}"
+ fi
+
+ ip ${ns} link add ${vrf} type vrf table ${table}
+ ip ${ns} link set ${vrf} up
+ ip ${ns} route add vrf ${vrf} unreachable default metric 8192
+ ip ${ns} -6 route add vrf ${vrf} unreachable default metric 8192
+
+ ip ${ns} addr add 127.0.0.1/8 dev ${vrf}
+ ip ${ns} -6 addr add ::1 dev ${vrf} nodad
+
+ ip ${ns} ru del pref 0
+ ip ${ns} ru add pref 32765 from all lookup local
+ ip ${ns} -6 ru del pref 0
+ ip ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+create_ns()
+{
+ local ns=$1
+ local addr=$2
+ local addr6=$3
+
+ [ -z "${addr}" ] && addr="-"
+ [ -z "${addr6}" ] && addr6="-"
+
+ ip netns add ${ns}
+
+ ip -netns ${ns} link set lo up
+ if [ "${addr}" != "-" ]; then
+ ip -netns ${ns} addr add dev lo ${addr}
+ fi
+ if [ "${addr6}" != "-" ]; then
+ ip -netns ${ns} -6 addr add dev lo ${addr6}
+ fi
+
+ ip -netns ${ns} ro add unreachable default metric 8192
+ ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+ ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+ ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+ local ns1=$1
+ local ns1_dev=$2
+ local ns1_addr=$3
+ local ns1_addr6=$4
+ local ns2=$5
+ local ns2_dev=$6
+ local ns2_addr=$7
+ local ns2_addr6=$8
+ local ns1arg
+ local ns2arg
+
+ if [ -n "${ns1}" ]; then
+ ns1arg="-netns ${ns1}"
+ fi
+ if [ -n "${ns2}" ]; then
+ ns2arg="-netns ${ns2}"
+ fi
+
+ ip ${ns1arg} li add ${ns1_dev} type veth peer name tmp
+ ip ${ns1arg} li set ${ns1_dev} up
+ ip ${ns1arg} li set tmp netns ${ns2} name ${ns2_dev}
+ ip ${ns2arg} li set ${ns2_dev} up
+
+ if [ "${ns1_addr}" != "-" ]; then
+ ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr}
+ ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr}
+ fi
+
+ if [ "${ns1_addr6}" != "-" ]; then
+ ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr6} nodad
+ ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr6} nodad
+ fi
+}
+
+################################################################################
+
+cleanup()
+{
+ ip netns del host1
+ ip netns del host2
+}
+
+setup()
+{
+ create_ns "host1"
+ create_ns "host2"
+
+ connect_ns "host1" eth0 ${HOST1_4}/24 ${HOST1_6}/64 \
+ "host2" eth0 ${HOST2_4}/24 ${HOST2_6}/64
+
+ create_vrf "host1" ${VRF} ${TABLE}
+ ip -netns host1 link set dev eth0 master ${VRF}
+}
+
+cleanup_xfrm()
+{
+ for ns in host1 host2
+ do
+ for x in state policy
+ do
+ ip -netns ${ns} xfrm ${x} flush
+ ip -6 -netns ${ns} xfrm ${x} flush
+ done
+ done
+}
+
+setup_xfrm()
+{
+ local h1_4=$1
+ local h2_4=$2
+ local h1_6=$3
+ local h2_6=$4
+ local devarg="$5"
+
+ #
+ # policy
+ #
+
+ # host1 - IPv4 out
+ ip -netns host1 xfrm policy add \
+ src ${h1_4} dst ${h2_4} ${devarg} dir out \
+ tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
+
+ # host2 - IPv4 in
+ ip -netns host2 xfrm policy add \
+ src ${h1_4} dst ${h2_4} dir in \
+ tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
+
+ # host1 - IPv4 in
+ ip -netns host1 xfrm policy add \
+ src ${h2_4} dst ${h1_4} ${devarg} dir in \
+ tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
+
+ # host2 - IPv4 out
+ ip -netns host2 xfrm policy add \
+ src ${h2_4} dst ${h1_4} dir out \
+ tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
+
+
+ # host1 - IPv6 out
+ ip -6 -netns host1 xfrm policy add \
+ src ${h1_6} dst ${h2_6} ${devarg} dir out \
+ tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
+
+ # host2 - IPv6 in
+ ip -6 -netns host2 xfrm policy add \
+ src ${h1_6} dst ${h2_6} dir in \
+ tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
+
+ # host1 - IPv6 in
+ ip -6 -netns host1 xfrm policy add \
+ src ${h2_6} dst ${h1_6} ${devarg} dir in \
+ tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
+
+ # host2 - IPv6 out
+ ip -6 -netns host2 xfrm policy add \
+ src ${h2_6} dst ${h1_6} dir out \
+ tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
+
+ #
+ # state
+ #
+ ip -netns host1 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_1} 96 \
+ enc 'cbc(des3_ede)' ${ENC_1} \
+ sel src ${h1_4} dst ${h2_4} ${devarg}
+
+ ip -netns host2 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_1} 96 \
+ enc 'cbc(des3_ede)' ${ENC_1} \
+ sel src ${h1_4} dst ${h2_4}
+
+
+ ip -netns host1 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_2} 96 \
+ enc 'cbc(des3_ede)' ${ENC_2} \
+ sel src ${h2_4} dst ${h1_4} ${devarg}
+
+ ip -netns host2 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_2} 96 \
+ enc 'cbc(des3_ede)' ${ENC_2} \
+ sel src ${h2_4} dst ${h1_4}
+
+
+ ip -6 -netns host1 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_1} 96 \
+ enc 'cbc(des3_ede)' ${ENC_1} \
+ sel src ${h1_6} dst ${h2_6} ${devarg}
+
+ ip -6 -netns host2 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
+ proto esp spi ${SPI_1} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_1} 96 \
+ enc 'cbc(des3_ede)' ${ENC_1} \
+ sel src ${h1_6} dst ${h2_6}
+
+
+ ip -6 -netns host1 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_2} 96 \
+ enc 'cbc(des3_ede)' ${ENC_2} \
+ sel src ${h2_6} dst ${h1_6} ${devarg}
+
+ ip -6 -netns host2 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
+ proto esp spi ${SPI_2} reqid 0 mode tunnel \
+ replay-window 4 replay-oseq 0x4 \
+ auth-trunc 'hmac(md5)' ${AUTH_2} 96 \
+ enc 'cbc(des3_ede)' ${ENC_2} \
+ sel src ${h2_6} dst ${h1_6}
+}
+
+cleanup_xfrm_dev()
+{
+ ip -netns host1 li del xfrm0
+ ip -netns host2 addr del ${XFRM2_4}/24 dev eth0
+ ip -netns host2 addr del ${XFRM2_6}/64 dev eth0
+}
+
+setup_xfrm_dev()
+{
+ local vrfarg="vrf ${VRF}"
+
+ ip -netns host1 li add type xfrm dev eth0 if_id ${IF_ID}
+ ip -netns host1 li set xfrm0 ${vrfarg} up
+ ip -netns host1 addr add ${XFRM1_4}/24 dev xfrm0
+ ip -netns host1 addr add ${XFRM1_6}/64 dev xfrm0
+
+ ip -netns host2 addr add ${XFRM2_4}/24 dev eth0
+ ip -netns host2 addr add ${XFRM2_6}/64 dev eth0
+
+ setup_xfrm ${XFRM1_4} ${XFRM2_4} ${XFRM1_6} ${XFRM2_6} "if_id ${IF_ID}"
+}
+
+run_tests()
+{
+ cleanup_xfrm
+
+ # no IPsec
+ run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ log_test $? 0 "IPv4 no xfrm policy"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ log_test $? 0 "IPv6 no xfrm policy"
+
+ # xfrm without VRF in sel
+ setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6}
+ run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ log_test $? 0 "IPv4 xfrm policy based on address"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ log_test $? 0 "IPv6 xfrm policy based on address"
+ cleanup_xfrm
+
+ # xfrm with VRF in sel
+ # Known failure: ipv4 resets the flow oif after the lookup. Fix is
+ # not straightforward.
+ # setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev ${VRF}"
+ # run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ # log_test $? 0 "IPv4 xfrm policy with VRF in selector"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ log_test $? 0 "IPv6 xfrm policy with VRF in selector"
+ cleanup_xfrm
+
+ # xfrm with enslaved device in sel
+ # Known failures: combined with the above, __xfrm{4,6}_selector_match
+ # needs to consider both l3mdev and enslaved device index.
+ # setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev eth0"
+ # run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+ # log_test $? 0 "IPv4 xfrm policy with enslaved device in selector"
+ # run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+ # log_test $? 0 "IPv6 xfrm policy with enslaved device in selector"
+ # cleanup_xfrm
+
+ # xfrm device
+ setup_xfrm_dev
+ run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${XFRM2_4}
+ log_test $? 0 "IPv4 xfrm policy with xfrm device"
+ run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${XFRM2_6}
+ log_test $? 0 "IPv6 xfrm policy with xfrm device"
+ cleanup_xfrm_dev
+}
+
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -p Pause on fail
+ -v verbose mode (show commands and output)
+
+done
+EOF
+}
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+ case $o in
+ p) PAUSE_ON_FAIL=yes;;
+ v) VERBOSE=$(($VERBOSE + 1));;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+cleanup 2>/dev/null
+setup
+
+echo
+echo "No qdisc on VRF device"
+run_tests
+
+run_cmd_host1 tc qdisc add dev ${VRF} root netem delay 100ms
+echo
+echo "netem qdisc on VRF device"
+run_tests
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n" ${nfail}
+
+exit $ret
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