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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/selftests/net/l2tp.sh | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/net/l2tp.sh')
-rwxr-xr-x | tools/testing/selftests/net/l2tp.sh | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/l2tp.sh b/tools/testing/selftests/net/l2tp.sh new file mode 100755 index 000000000..578243388 --- /dev/null +++ b/tools/testing/selftests/net/l2tp.sh @@ -0,0 +1,382 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# L2TPv3 tunnel between 2 hosts +# +# host-1 | router | host-2 +# | | +# lo l2tp | | l2tp lo +# 172.16.101.1 172.16.1.1 | | 172.16.1.2 172.16.101.2 +# fc00:101::1 fc00:1::1 | | fc00:1::2 fc00:101::2 +# | | +# eth0 | | eth0 +# 10.1.1.1 | | 10.1.2.1 +# 2001:db8:1::1 | | 2001:db8:2::1 + +VERBOSE=0 +PAUSE_ON_FAIL=no + +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() +{ + local ns + local cmd + local out + local rc + + ns="$1" + shift + cmd="$*" + + if [ "$VERBOSE" = "1" ]; then + printf " COMMAND: $cmd\n" + fi + + out=$(eval ip netns exec ${ns} ${cmd} 2>&1) + rc=$? + if [ "$VERBOSE" = "1" -a -n "$out" ]; then + echo " $out" + fi + + [ "$VERBOSE" = "1" ] && echo + + return $rc +} + +################################################################################ +# create namespaces and interconnects + +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 + + ip -netns ${ns1} li add ${ns1_dev} type veth peer name tmp + ip -netns ${ns1} li set ${ns1_dev} up + ip -netns ${ns1} li set tmp netns ${ns2} name ${ns2_dev} + ip -netns ${ns2} li set ${ns2_dev} up + + if [ "${ns1_addr}" != "-" ]; then + ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr} + ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr} + fi + + if [ "${ns1_addr6}" != "-" ]; then + ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr6} + ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr6} + fi +} + +################################################################################ +# test setup + +cleanup() +{ + local ns + + for ns in host-1 host-2 router + do + ip netns del ${ns} 2>/dev/null + done +} + +setup_l2tp_ipv4() +{ + # + # configure l2tpv3 tunnel on host-1 + # + ip -netns host-1 l2tp add tunnel tunnel_id 1041 peer_tunnel_id 1042 \ + encap ip local 10.1.1.1 remote 10.1.2.1 + ip -netns host-1 l2tp add session name l2tp4 tunnel_id 1041 \ + session_id 1041 peer_session_id 1042 + ip -netns host-1 link set dev l2tp4 up + ip -netns host-1 addr add dev l2tp4 172.16.1.1 peer 172.16.1.2 + + # + # configure l2tpv3 tunnel on host-2 + # + ip -netns host-2 l2tp add tunnel tunnel_id 1042 peer_tunnel_id 1041 \ + encap ip local 10.1.2.1 remote 10.1.1.1 + ip -netns host-2 l2tp add session name l2tp4 tunnel_id 1042 \ + session_id 1042 peer_session_id 1041 + ip -netns host-2 link set dev l2tp4 up + ip -netns host-2 addr add dev l2tp4 172.16.1.2 peer 172.16.1.1 + + # + # add routes to loopback addresses + # + ip -netns host-1 ro add 172.16.101.2/32 via 172.16.1.2 + ip -netns host-2 ro add 172.16.101.1/32 via 172.16.1.1 +} + +setup_l2tp_ipv6() +{ + # + # configure l2tpv3 tunnel on host-1 + # + ip -netns host-1 l2tp add tunnel tunnel_id 1061 peer_tunnel_id 1062 \ + encap ip local 2001:db8:1::1 remote 2001:db8:2::1 + ip -netns host-1 l2tp add session name l2tp6 tunnel_id 1061 \ + session_id 1061 peer_session_id 1062 + ip -netns host-1 link set dev l2tp6 up + ip -netns host-1 addr add dev l2tp6 fc00:1::1 peer fc00:1::2 + + # + # configure l2tpv3 tunnel on host-2 + # + ip -netns host-2 l2tp add tunnel tunnel_id 1062 peer_tunnel_id 1061 \ + encap ip local 2001:db8:2::1 remote 2001:db8:1::1 + ip -netns host-2 l2tp add session name l2tp6 tunnel_id 1062 \ + session_id 1062 peer_session_id 1061 + ip -netns host-2 link set dev l2tp6 up + ip -netns host-2 addr add dev l2tp6 fc00:1::2 peer fc00:1::1 + + # + # add routes to loopback addresses + # + ip -netns host-1 -6 ro add fc00:101::2/128 via fc00:1::2 + ip -netns host-2 -6 ro add fc00:101::1/128 via fc00:1::1 +} + +setup() +{ + # start clean + cleanup + + set -e + create_ns host-1 172.16.101.1/32 fc00:101::1/128 + create_ns host-2 172.16.101.2/32 fc00:101::2/128 + create_ns router + + connect_ns host-1 eth0 10.1.1.1/24 2001:db8:1::1/64 \ + router eth1 10.1.1.2/24 2001:db8:1::2/64 + + connect_ns host-2 eth0 10.1.2.1/24 2001:db8:2::1/64 \ + router eth2 10.1.2.2/24 2001:db8:2::2/64 + + ip -netns host-1 ro add 10.1.2.0/24 via 10.1.1.2 + ip -netns host-1 -6 ro add 2001:db8:2::/64 via 2001:db8:1::2 + + ip -netns host-2 ro add 10.1.1.0/24 via 10.1.2.2 + ip -netns host-2 -6 ro add 2001:db8:1::/64 via 2001:db8:2::2 + + setup_l2tp_ipv4 + setup_l2tp_ipv6 + set +e +} + +setup_ipsec() +{ + # + # IPv4 + # + run_cmd host-1 ip xfrm policy add \ + src 10.1.1.1 dst 10.1.2.1 dir out \ + tmpl proto esp mode transport + + run_cmd host-1 ip xfrm policy add \ + src 10.1.2.1 dst 10.1.1.1 dir in \ + tmpl proto esp mode transport + + run_cmd host-2 ip xfrm policy add \ + src 10.1.1.1 dst 10.1.2.1 dir in \ + tmpl proto esp mode transport + + run_cmd host-2 ip xfrm policy add \ + src 10.1.2.1 dst 10.1.1.1 dir out \ + tmpl proto esp mode transport + + ip -netns host-1 xfrm state add \ + src 10.1.1.1 dst 10.1.2.1 \ + spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + ip -netns host-1 xfrm state add \ + src 10.1.2.1 dst 10.1.1.1 \ + spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + ip -netns host-2 xfrm state add \ + src 10.1.1.1 dst 10.1.2.1 \ + spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + ip -netns host-2 xfrm state add \ + src 10.1.2.1 dst 10.1.1.1 \ + spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + # + # IPV6 + # + run_cmd host-1 ip -6 xfrm policy add \ + src 2001:db8:1::1 dst 2001:db8:2::1 dir out \ + tmpl proto esp mode transport + + run_cmd host-1 ip -6 xfrm policy add \ + src 2001:db8:2::1 dst 2001:db8:1::1 dir in \ + tmpl proto esp mode transport + + run_cmd host-2 ip -6 xfrm policy add \ + src 2001:db8:1::1 dst 2001:db8:2::1 dir in \ + tmpl proto esp mode transport + + run_cmd host-2 ip -6 xfrm policy add \ + src 2001:db8:2::1 dst 2001:db8:1::1 dir out \ + tmpl proto esp mode transport + + ip -netns host-1 -6 xfrm state add \ + src 2001:db8:1::1 dst 2001:db8:2::1 \ + spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + ip -netns host-1 -6 xfrm state add \ + src 2001:db8:2::1 dst 2001:db8:1::1 \ + spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + ip -netns host-2 -6 xfrm state add \ + src 2001:db8:1::1 dst 2001:db8:2::1 \ + spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport + + ip -netns host-2 -6 xfrm state add \ + src 2001:db8:2::1 dst 2001:db8:1::1 \ + spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \ + 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport +} + +teardown_ipsec() +{ + run_cmd host-1 ip xfrm state flush + run_cmd host-1 ip xfrm policy flush + run_cmd host-2 ip xfrm state flush + run_cmd host-2 ip xfrm policy flush +} + +################################################################################ +# generate traffic through tunnel for various cases + +run_ping() +{ + local desc="$1" + + run_cmd host-1 ping -c1 -w1 172.16.1.2 + log_test $? 0 "IPv4 basic L2TP tunnel ${desc}" + + run_cmd host-1 ping -c1 -w1 -I 172.16.101.1 172.16.101.2 + log_test $? 0 "IPv4 route through L2TP tunnel ${desc}" + + run_cmd host-1 ${ping6} -c1 -w1 fc00:1::2 + log_test $? 0 "IPv6 basic L2TP tunnel ${desc}" + + run_cmd host-1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2 + log_test $? 0 "IPv6 route through L2TP tunnel ${desc}" +} + +run_tests() +{ + local desc + + setup + run_ping + + setup_ipsec + run_ping "- with IPsec" + run_cmd host-1 ping -c1 -w1 172.16.1.2 + log_test $? 0 "IPv4 basic L2TP tunnel ${desc}" + + run_cmd host-1 ping -c1 -w1 -I 172.16.101.1 172.16.101.2 + log_test $? 0 "IPv4 route through L2TP tunnel ${desc}" + + run_cmd host-1 ${ping6} -c1 -w1 fc00:1::2 + log_test $? 0 "IPv6 basic L2TP tunnel - with IPsec" + + run_cmd host-1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2 + log_test $? 0 "IPv6 route through L2TP tunnel - with IPsec" + + teardown_ipsec + run_ping "- after IPsec teardown" +} + +################################################################################ +# main + +declare -i nfail=0 +declare -i nsuccess=0 + +while getopts :pv o +do + case $o in + p) PAUSE_ON_FAIL=yes;; + v) VERBOSE=$(($VERBOSE + 1));; + *) exit 1;; + esac +done + +run_tests +cleanup + +printf "\nTests passed: %3d\n" ${nsuccess} +printf "Tests failed: %3d\n" ${nfail} |