432 lines
11 KiB
Bash
Executable File
432 lines
11 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Various combinations of VRF with xfrms and qdisc.
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source lib.sh
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PAUSE_ON_FAIL=no
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VERBOSE=0
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ret=0
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HOST1_4=192.168.1.1
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HOST2_4=192.168.1.2
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HOST1_6=2001:db8:1::1
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HOST2_6=2001:db8:1::2
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XFRM1_4=10.0.1.1
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XFRM2_4=10.0.1.2
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XFRM1_6=fc00:1000::1
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XFRM2_6=fc00:1000::2
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IF_ID=123
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VRF=red
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TABLE=300
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AUTH_1=0xd94fcfea65fddf21dc6e0d24a0253508
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AUTH_2=0xdc6e0d24a0253508d94fcfea65fddf21
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ENC_1=0xfc46c20f8048be9725930ff3fb07ac2a91f0347dffeacf62
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ENC_2=0x3fb07ac2a91f0347dffeacf62fc46c20f8048be9725930ff
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SPI_1=0x02122b77
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SPI_2=0x2b770212
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which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
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################################################################################
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#
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log_test()
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{
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local rc=$1
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local expected=$2
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local msg="$3"
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if [ ${rc} -eq ${expected} ]; then
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printf "TEST: %-60s [ OK ]\n" "${msg}"
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nsuccess=$((nsuccess+1))
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else
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ret=1
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nfail=$((nfail+1))
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printf "TEST: %-60s [FAIL]\n" "${msg}"
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if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
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echo
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echo "hit enter to continue, 'q' to quit"
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read a
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[ "$a" = "q" ] && exit 1
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fi
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fi
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}
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run_cmd_host1()
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{
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local cmd="$*"
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local out
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local rc
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if [ "$VERBOSE" = "1" ]; then
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printf " COMMAND: $cmd\n"
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fi
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out=$(eval ip netns exec $host1 $cmd 2>&1)
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rc=$?
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if [ "$VERBOSE" = "1" ]; then
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if [ -n "$out" ]; then
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echo
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echo " $out"
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fi
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echo
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fi
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return $rc
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}
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################################################################################
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# create namespaces for hosts and sws
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create_vrf()
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{
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local ns=$1
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local vrf=$2
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local table=$3
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if [ -n "${ns}" ]; then
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ns="-netns ${ns}"
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fi
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ip ${ns} link add ${vrf} type vrf table ${table}
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ip ${ns} link set ${vrf} up
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ip ${ns} route add vrf ${vrf} unreachable default metric 8192
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ip ${ns} -6 route add vrf ${vrf} unreachable default metric 8192
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ip ${ns} addr add 127.0.0.1/8 dev ${vrf}
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ip ${ns} -6 addr add ::1 dev ${vrf} nodad
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ip ${ns} ru del pref 0
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ip ${ns} ru add pref 32765 from all lookup local
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ip ${ns} -6 ru del pref 0
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ip ${ns} -6 ru add pref 32765 from all lookup local
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}
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create_ns()
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{
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local ns=$1
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local addr=$2
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local addr6=$3
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[ -z "${addr}" ] && addr="-"
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[ -z "${addr6}" ] && addr6="-"
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if [ "${addr}" != "-" ]; then
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ip -netns ${ns} addr add dev lo ${addr}
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fi
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if [ "${addr6}" != "-" ]; then
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ip -netns ${ns} -6 addr add dev lo ${addr6}
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fi
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ip -netns ${ns} ro add unreachable default metric 8192
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ip -netns ${ns} -6 ro add unreachable default metric 8192
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ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
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ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
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ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
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ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
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ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
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}
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# create veth pair to connect namespaces and apply addresses.
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connect_ns()
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{
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local ns1=$1
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local ns1_dev=$2
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local ns1_addr=$3
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local ns1_addr6=$4
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local ns2=$5
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local ns2_dev=$6
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local ns2_addr=$7
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local ns2_addr6=$8
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local ns1arg
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local ns2arg
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if [ -n "${ns1}" ]; then
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ns1arg="-netns ${ns1}"
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fi
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if [ -n "${ns2}" ]; then
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ns2arg="-netns ${ns2}"
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fi
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ip ${ns1arg} li add ${ns1_dev} type veth peer name tmp
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ip ${ns1arg} li set ${ns1_dev} up
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ip ${ns1arg} li set tmp netns ${ns2} name ${ns2_dev}
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ip ${ns2arg} li set ${ns2_dev} up
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if [ "${ns1_addr}" != "-" ]; then
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ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr}
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ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr}
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fi
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if [ "${ns1_addr6}" != "-" ]; then
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ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr6} nodad
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ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr6} nodad
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fi
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}
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################################################################################
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cleanup()
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{
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cleanup_ns $host1 $host2
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}
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setup()
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{
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setup_ns host1 host2
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create_ns "$host1"
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create_ns "$host2"
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connect_ns "$host1" eth0 ${HOST1_4}/24 ${HOST1_6}/64 \
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"$host2" eth0 ${HOST2_4}/24 ${HOST2_6}/64
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create_vrf "$host1" ${VRF} ${TABLE}
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ip -netns $host1 link set dev eth0 master ${VRF}
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}
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cleanup_xfrm()
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{
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for ns in $host1 $host2
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do
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for x in state policy
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do
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ip -netns ${ns} xfrm ${x} flush
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ip -6 -netns ${ns} xfrm ${x} flush
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done
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done
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}
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setup_xfrm()
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{
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local h1_4=$1
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local h2_4=$2
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local h1_6=$3
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local h2_6=$4
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local devarg="$5"
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#
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# policy
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#
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# host1 - IPv4 out
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ip -netns $host1 xfrm policy add \
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src ${h1_4} dst ${h2_4} ${devarg} dir out \
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tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
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# host2 - IPv4 in
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ip -netns $host2 xfrm policy add \
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src ${h1_4} dst ${h2_4} dir in \
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tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
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# host1 - IPv4 in
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ip -netns $host1 xfrm policy add \
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src ${h2_4} dst ${h1_4} ${devarg} dir in \
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tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
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# host2 - IPv4 out
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ip -netns $host2 xfrm policy add \
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src ${h2_4} dst ${h1_4} dir out \
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tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
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# host1 - IPv6 out
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ip -6 -netns $host1 xfrm policy add \
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src ${h1_6} dst ${h2_6} ${devarg} dir out \
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tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
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# host2 - IPv6 in
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ip -6 -netns $host2 xfrm policy add \
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src ${h1_6} dst ${h2_6} dir in \
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tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
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# host1 - IPv6 in
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ip -6 -netns $host1 xfrm policy add \
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src ${h2_6} dst ${h1_6} ${devarg} dir in \
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tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
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# host2 - IPv6 out
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ip -6 -netns $host2 xfrm policy add \
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src ${h2_6} dst ${h1_6} dir out \
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tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
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#
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# state
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#
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ip -netns $host1 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
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proto esp spi ${SPI_1} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
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enc 'cbc(aes)' ${ENC_1} \
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sel src ${h1_4} dst ${h2_4} ${devarg}
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ip -netns $host2 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
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proto esp spi ${SPI_1} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
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enc 'cbc(aes)' ${ENC_1} \
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sel src ${h1_4} dst ${h2_4}
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ip -netns $host1 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
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proto esp spi ${SPI_2} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
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enc 'cbc(aes)' ${ENC_2} \
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sel src ${h2_4} dst ${h1_4} ${devarg}
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ip -netns $host2 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
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proto esp spi ${SPI_2} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
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enc 'cbc(aes)' ${ENC_2} \
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sel src ${h2_4} dst ${h1_4}
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ip -6 -netns $host1 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
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proto esp spi ${SPI_1} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
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enc 'cbc(aes)' ${ENC_1} \
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sel src ${h1_6} dst ${h2_6} ${devarg}
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ip -6 -netns $host2 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
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proto esp spi ${SPI_1} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
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enc 'cbc(aes)' ${ENC_1} \
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sel src ${h1_6} dst ${h2_6}
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ip -6 -netns $host1 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
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proto esp spi ${SPI_2} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
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enc 'cbc(aes)' ${ENC_2} \
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sel src ${h2_6} dst ${h1_6} ${devarg}
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ip -6 -netns $host2 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
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proto esp spi ${SPI_2} reqid 0 mode tunnel \
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replay-window 4 replay-oseq 0x4 \
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auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
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enc 'cbc(aes)' ${ENC_2} \
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sel src ${h2_6} dst ${h1_6}
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}
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cleanup_xfrm_dev()
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{
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ip -netns $host1 li del xfrm0
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ip -netns $host2 addr del ${XFRM2_4}/24 dev eth0
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ip -netns $host2 addr del ${XFRM2_6}/64 dev eth0
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}
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setup_xfrm_dev()
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{
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local vrfarg="vrf ${VRF}"
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ip -netns $host1 li add type xfrm dev eth0 if_id ${IF_ID}
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ip -netns $host1 li set xfrm0 ${vrfarg} up
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ip -netns $host1 addr add ${XFRM1_4}/24 dev xfrm0
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ip -netns $host1 addr add ${XFRM1_6}/64 dev xfrm0
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ip -netns $host2 addr add ${XFRM2_4}/24 dev eth0
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ip -netns $host2 addr add ${XFRM2_6}/64 dev eth0
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setup_xfrm ${XFRM1_4} ${XFRM2_4} ${XFRM1_6} ${XFRM2_6} "if_id ${IF_ID}"
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}
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run_tests()
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{
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cleanup_xfrm
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# no IPsec
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run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
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log_test $? 0 "IPv4 no xfrm policy"
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run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
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log_test $? 0 "IPv6 no xfrm policy"
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# xfrm without VRF in sel
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setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6}
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run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
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log_test $? 0 "IPv4 xfrm policy based on address"
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run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
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log_test $? 0 "IPv6 xfrm policy based on address"
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cleanup_xfrm
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# xfrm with VRF in sel
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# Known failure: ipv4 resets the flow oif after the lookup. Fix is
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# not straightforward.
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# setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev ${VRF}"
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# run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
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# log_test $? 0 "IPv4 xfrm policy with VRF in selector"
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run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
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log_test $? 0 "IPv6 xfrm policy with VRF in selector"
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cleanup_xfrm
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# xfrm with enslaved device in sel
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# Known failures: combined with the above, __xfrm{4,6}_selector_match
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# needs to consider both l3mdev and enslaved device index.
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# setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev eth0"
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# run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
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# log_test $? 0 "IPv4 xfrm policy with enslaved device in selector"
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# run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
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# log_test $? 0 "IPv6 xfrm policy with enslaved device in selector"
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# cleanup_xfrm
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# xfrm device
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setup_xfrm_dev
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run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${XFRM2_4}
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log_test $? 0 "IPv4 xfrm policy with xfrm device"
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run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${XFRM2_6}
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log_test $? 0 "IPv6 xfrm policy with xfrm device"
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cleanup_xfrm_dev
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}
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################################################################################
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# usage
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usage()
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{
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cat <<EOF
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usage: ${0##*/} OPTS
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-p Pause on fail
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-v verbose mode (show commands and output)
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done
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EOF
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}
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################################################################################
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# main
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while getopts :pv o
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do
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case $o in
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p) PAUSE_ON_FAIL=yes;;
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v) VERBOSE=$(($VERBOSE + 1));;
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h) usage; exit 0;;
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*) usage; exit 1;;
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esac
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done
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cleanup 2>/dev/null
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setup
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echo
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echo "No qdisc on VRF device"
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run_tests
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run_cmd_host1 tc qdisc add dev ${VRF} root netem delay 100ms
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echo
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echo "netem qdisc on VRF device"
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run_tests
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printf "\nTests passed: %3d\n" ${nsuccess}
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printf "Tests failed: %3d\n" ${nfail}
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exit $ret
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