[PATCHv2 net-next 11/14] selftests/net: convert l2tp.sh to run it in unique namespace

Hangbin Liu
2023-11-30T04:02:08Z

]# ./l2tp.sh
TEST: IPv4 basic L2TP tunnel [ OK ]
TEST: IPv4 route through L2TP tunnel [ OK ]
TEST: IPv6 basic L2TP tunnel [ OK ]
TEST: IPv6 route through L2TP tunnel [ OK ]
TEST: IPv4 basic L2TP tunnel - with IPsec [ OK ]
TEST: IPv4 route through L2TP tunnel - with IPsec [ OK ]
TEST: IPv6 basic L2TP tunnel - with IPsec [ OK ]
TEST: IPv6 route through L2TP tunnel - with IPsec [ OK ]
TEST: IPv4 basic L2TP tunnel [ OK ]
TEST: IPv4 route through L2TP tunnel [ OK ]
TEST: IPv6 basic L2TP tunnel - with IPsec [ OK ]
TEST: IPv6 route through L2TP tunnel - with IPsec [ OK ]
TEST: IPv4 basic L2TP tunnel - after IPsec teardown [ OK ]
TEST: IPv4 route through L2TP tunnel - after IPsec teardown [ OK ]
TEST: IPv6 basic L2TP tunnel - after IPsec teardown [ OK ]
TEST: IPv6 route through L2TP tunnel - after IPsec teardown [ OK ]

Tests passed: 16
Tests failed: 0

Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
tools/testing/selftests/net/l2tp.sh | 130 +++++++++++++---------------
1 file changed, 62 insertions(+), 68 deletions(-)

diff --git a/tools/testing/selftests/net/l2tp.sh b/tools/testing/selftests/net/l2tp.sh
index 5782433886fc..88de7166c8ae 100755
--- a/tools/testing/selftests/net/l2tp.sh
+++ b/tools/testing/selftests/net/l2tp.sh
@@ -13,6 +13,7 @@
# 10.1.1.1 | | 10.1.2.1
# 2001:db8:1::1 | | 2001:db8:2::1

+source lib.sh
VERBOSE=0
PAUSE_ON_FAIL=no

@@ -80,9 +81,6 @@ create_ns()
[ -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
@@ -133,12 +131,7 @@ connect_ns()

cleanup()
{
- local ns
-
- for ns in host-1 host-2 router
- do
- ip netns del ${ns} 2>/dev/null
- done
+ cleanup_ns $host_1 $host_2 $router
}

setup_l2tp_ipv4()
@@ -146,28 +139,28 @@ setup_l2tp_ipv4()
#
# configure l2tpv3 tunnel on host-1
#
- ip -netns host-1 l2tp add tunnel tunnel_id 1041 peer_tunnel_id 1042 \
+ 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 \
+ 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
+ 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 \
+ 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 \
+ 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
+ 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
+ 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()
@@ -175,28 +168,28 @@ setup_l2tp_ipv6()
#
# configure l2tpv3 tunnel on host-1
#
- ip -netns host-1 l2tp add tunnel tunnel_id 1061 peer_tunnel_id 1062 \
+ 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 \
+ 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
+ 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 \
+ 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 \
+ 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
+ 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
+ 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()
@@ -205,21 +198,22 @@ setup()
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
+ setup_ns host_1 host_2 router
+ 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_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
+ 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_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
+ 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
@@ -231,38 +225,38 @@ setup_ipsec()
#
# IPv4
#
- run_cmd host-1 ip xfrm policy add \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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
@@ -270,38 +264,38 @@ setup_ipsec()
#
# IPV6
#
- run_cmd host-1 ip -6 xfrm policy add \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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 \
+ 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
@@ -309,10 +303,10 @@ setup_ipsec()

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
+ 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
}

################################################################################
@@ -322,16 +316,16 @@ run_ping()
{
local desc="$1"

- run_cmd host-1 ping -c1 -w1 172.16.1.2
+ 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
+ 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
+ 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
+ run_cmd $host_1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2
log_test $? 0 "IPv6 route through L2TP tunnel ${desc}"
}

@@ -344,16 +338,16 @@ run_tests()

setup_ipsec
run_ping "- with IPsec"
- run_cmd host-1 ping -c1 -w1 172.16.1.2
+ 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
+ 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
+ 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
+ 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
--
2.41.0