You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
323 lines
7.1 KiB
323 lines
7.1 KiB
#!/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}
|