selftest: net: add some traceroute tests
Added the following traceroute tests.
IPV6:
Verify that in this scenario
------------------------ N2
| |
------ ------ N3 ----
| R1 | | R2 |------|H2|
------ ------ ----
| |
------------------------ N1
|
----
|H1|
----
where H1's default route goes through R1 and R1's default route goes
through R2 over N2, traceroute6 from H1 to H2 reports R2's address
on N2 and not N1.
IPV4:
Verify that traceroute from H1 to H2 shows 1.0.1.1 in this scenario
1.0.3.1/24
---- 1.0.1.3/24 1.0.1.1/24 ---- 1.0.2.1/24 1.0.2.4/24 ----
|H1|--------------------------|R1|--------------------------|H2|
---- N1 ---- N2 ----
where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and
1.0.3.1/24 and 1.0.1.1/24 are respectively R1's primary and secondary
address on N1.
v2: fixed some typos, and have bridge in R1 instead of R2 in IPV6 test.
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Francesco Ruggeri
David S. Miller
Родитель
3edcc56801
Коммит
3c28d99fc6
|
|
@ -10,7 +10,7 @@ TEST_PROGS += fib_tests.sh fib-onlink-tests.sh pmtu.sh udpgso.sh ip_defrag.sh
|
|||
TEST_PROGS += udpgso_bench.sh fib_rule_tests.sh msg_zerocopy.sh psock_snd.sh
|
||||
TEST_PROGS += udpgro_bench.sh udpgro.sh test_vxlan_under_vrf.sh reuseport_addr_any.sh
|
||||
TEST_PROGS += test_vxlan_fdb_changelink.sh so_txtime.sh ipv6_flowlabel.sh
|
||||
TEST_PROGS += tcp_fastopen_backup_key.sh fcnal-test.sh l2tp.sh
|
||||
TEST_PROGS += tcp_fastopen_backup_key.sh fcnal-test.sh l2tp.sh traceroute.sh
|
||||
TEST_PROGS_EXTENDED := in_netns.sh
|
||||
TEST_GEN_FILES = socket nettest
|
||||
TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any
|
||||
|
|
|
|||
|
|
@ -0,0 +1,322 @@
|
|||
#!/bin/bash
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
#
|
||||
# Run traceroute/traceroute6 tests
|
||||
#
|
||||
|
||||
VERBOSE=0
|
||||
PAUSE_ON_FAIL=no
|
||||
|
||||
################################################################################
|
||||
#
|
||||
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 exec ${ns} ip link set lo up
|
||||
if [ "${addr}" != "-" ]; then
|
||||
ip netns exec ${ns} ip addr add dev lo ${addr}
|
||||
fi
|
||||
if [ "${addr6}" != "-" ]; then
|
||||
ip netns exec ${ns} ip -6 addr add dev lo ${addr6}
|
||||
fi
|
||||
|
||||
ip netns exec ${ns} ip ro add unreachable default metric 8192
|
||||
ip netns exec ${ns} ip -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 exec ${ns1} ip li add ${ns1_dev} type veth peer name tmp
|
||||
ip netns exec ${ns1} ip li set ${ns1_dev} up
|
||||
ip netns exec ${ns1} ip li set tmp netns ${ns2} name ${ns2_dev}
|
||||
ip netns exec ${ns2} ip li set ${ns2_dev} up
|
||||
|
||||
if [ "${ns1_addr}" != "-" ]; then
|
||||
ip netns exec ${ns1} ip addr add dev ${ns1_dev} ${ns1_addr}
|
||||
fi
|
||||
|
||||
if [ "${ns2_addr}" != "-" ]; then
|
||||
ip netns exec ${ns2} ip addr add dev ${ns2_dev} ${ns2_addr}
|
||||
fi
|
||||
|
||||
if [ "${ns1_addr6}" != "-" ]; then
|
||||
ip netns exec ${ns1} ip addr add dev ${ns1_dev} ${ns1_addr6}
|
||||
fi
|
||||
|
||||
if [ "${ns2_addr6}" != "-" ]; then
|
||||
ip netns exec ${ns2} ip addr add dev ${ns2_dev} ${ns2_addr6}
|
||||
fi
|
||||
}
|
||||
|
||||
################################################################################
|
||||
# traceroute6 test
|
||||
#
|
||||
# Verify that in this scenario
|
||||
#
|
||||
# ------------------------ N2
|
||||
# | |
|
||||
# ------ ------ N3 ----
|
||||
# | R1 | | R2 |------|H2|
|
||||
# ------ ------ ----
|
||||
# | |
|
||||
# ------------------------ N1
|
||||
# |
|
||||
# ----
|
||||
# |H1|
|
||||
# ----
|
||||
#
|
||||
# where H1's default route goes through R1 and R1's default route goes
|
||||
# through R2 over N2, traceroute6 from H1 to H2 reports R2's address
|
||||
# on N2 and not N1.
|
||||
#
|
||||
# Addresses are assigned as follows:
|
||||
#
|
||||
# N1: 2000:101::/64
|
||||
# N2: 2000:102::/64
|
||||
# N3: 2000:103::/64
|
||||
#
|
||||
# R1's host part of address: 1
|
||||
# R2's host part of address: 2
|
||||
# H1's host part of address: 3
|
||||
# H2's host part of address: 4
|
||||
#
|
||||
# For example:
|
||||
# the IPv6 address of R1's interface on N2 is 2000:102::1/64
|
||||
|
||||
cleanup_traceroute6()
|
||||
{
|
||||
local ns
|
||||
|
||||
for ns in host-1 host-2 router-1 router-2
|
||||
do
|
||||
ip netns del ${ns} 2>/dev/null
|
||||
done
|
||||
}
|
||||
|
||||
setup_traceroute6()
|
||||
{
|
||||
brdev=br0
|
||||
|
||||
# start clean
|
||||
cleanup_traceroute6
|
||||
|
||||
set -e
|
||||
create_ns host-1
|
||||
create_ns host-2
|
||||
create_ns router-1
|
||||
create_ns router-2
|
||||
|
||||
# Setup N3
|
||||
connect_ns router-2 eth3 - 2000:103::2/64 host-2 eth3 - 2000:103::4/64
|
||||
ip netns exec host-2 ip route add default via 2000:103::2
|
||||
|
||||
# Setup N2
|
||||
connect_ns router-1 eth2 - 2000:102::1/64 router-2 eth2 - 2000:102::2/64
|
||||
ip netns exec router-1 ip route add default via 2000:102::2
|
||||
|
||||
# Setup N1. host-1 and router-2 connect to a bridge in router-1.
|
||||
ip netns exec router-1 ip link add name ${brdev} type bridge
|
||||
ip netns exec router-1 ip link set ${brdev} up
|
||||
ip netns exec router-1 ip addr add 2000:101::1/64 dev ${brdev}
|
||||
|
||||
connect_ns host-1 eth0 - 2000:101::3/64 router-1 eth0 - -
|
||||
ip netns exec router-1 ip link set dev eth0 master ${brdev}
|
||||
ip netns exec host-1 ip route add default via 2000:101::1
|
||||
|
||||
connect_ns router-2 eth1 - 2000:101::2/64 router-1 eth1 - -
|
||||
ip netns exec router-1 ip link set dev eth1 master ${brdev}
|
||||
|
||||
# Prime the network
|
||||
ip netns exec host-1 ping6 -c5 2000:103::4 >/dev/null 2>&1
|
||||
|
||||
set +e
|
||||
}
|
||||
|
||||
run_traceroute6()
|
||||
{
|
||||
if [ ! -x "$(command -v traceroute6)" ]; then
|
||||
echo "SKIP: Could not run IPV6 test without traceroute6"
|
||||
return
|
||||
fi
|
||||
|
||||
setup_traceroute6
|
||||
|
||||
# traceroute6 host-2 from host-1 (expects 2000:102::2)
|
||||
run_cmd host-1 "traceroute6 2000:103::4 | grep -q 2000:102::2"
|
||||
log_test $? 0 "IPV6 traceroute"
|
||||
|
||||
cleanup_traceroute6
|
||||
}
|
||||
|
||||
################################################################################
|
||||
# traceroute test
|
||||
#
|
||||
# Verify that traceroute from H1 to H2 shows 1.0.1.1 in this scenario
|
||||
#
|
||||
# 1.0.3.1/24
|
||||
# ---- 1.0.1.3/24 1.0.1.1/24 ---- 1.0.2.1/24 1.0.2.4/24 ----
|
||||
# |H1|--------------------------|R1|--------------------------|H2|
|
||||
# ---- N1 ---- N2 ----
|
||||
#
|
||||
# where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and
|
||||
# 1.0.3.1/24 and 1.0.1.1/24 are respectively R1's primary and secondary
|
||||
# address on N1.
|
||||
#
|
||||
|
||||
cleanup_traceroute()
|
||||
{
|
||||
local ns
|
||||
|
||||
for ns in host-1 host-2 router
|
||||
do
|
||||
ip netns del ${ns} 2>/dev/null
|
||||
done
|
||||
}
|
||||
|
||||
setup_traceroute()
|
||||
{
|
||||
# start clean
|
||||
cleanup_traceroute
|
||||
|
||||
set -e
|
||||
create_ns host-1
|
||||
create_ns host-2
|
||||
create_ns router
|
||||
|
||||
connect_ns host-1 eth0 1.0.1.3/24 - \
|
||||
router eth1 1.0.3.1/24 -
|
||||
ip netns exec host-1 ip route add default via 1.0.1.1
|
||||
|
||||
ip netns exec router ip addr add 1.0.1.1/24 dev eth1
|
||||
ip netns exec router sysctl -qw \
|
||||
net.ipv4.icmp_errors_use_inbound_ifaddr=1
|
||||
|
||||
connect_ns host-2 eth0 1.0.2.4/24 - \
|
||||
router eth2 1.0.2.1/24 -
|
||||
ip netns exec host-2 ip route add default via 1.0.2.1
|
||||
|
||||
# Prime the network
|
||||
ip netns exec host-1 ping -c5 1.0.2.4 >/dev/null 2>&1
|
||||
|
||||
set +e
|
||||
}
|
||||
|
||||
run_traceroute()
|
||||
{
|
||||
if [ ! -x "$(command -v traceroute)" ]; then
|
||||
echo "SKIP: Could not run IPV4 test without traceroute"
|
||||
return
|
||||
fi
|
||||
|
||||
setup_traceroute
|
||||
|
||||
# traceroute host-2 from host-1 (expects 1.0.1.1). Takes a while.
|
||||
run_cmd host-1 "traceroute 1.0.2.4 | grep -q 1.0.1.1"
|
||||
log_test $? 0 "IPV4 traceroute"
|
||||
|
||||
cleanup_traceroute
|
||||
}
|
||||
|
||||
################################################################################
|
||||
# Run tests
|
||||
|
||||
run_tests()
|
||||
{
|
||||
run_traceroute6
|
||||
run_traceroute
|
||||
}
|
||||
|
||||
################################################################################
|
||||
# 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
|
||||
|
||||
printf "\nTests passed: %3d\n" ${nsuccess}
|
||||
printf "Tests failed: %3d\n" ${nfail}
|
||||
Загрузка…
Ссылка в новой задаче