mirror of https://github.com/Qortal/Brooklyn
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.
292 lines
5.7 KiB
292 lines
5.7 KiB
#!/bin/bash |
|
# SPDX-License-Identifier: GPL-2.0 |
|
# |
|
# Validate cached routes in fib{6}_nh that is used by multiple prefixes. |
|
# Validate a different # exception is generated in h0 for each remote host. |
|
# |
|
# h1 |
|
# / |
|
# h0 - r1 - h2 |
|
# \ |
|
# h3 |
|
# |
|
# routing in h0 to hN is done with nexthop objects. |
|
|
|
PAUSE_ON_FAIL=no |
|
VERBOSE=0 |
|
|
|
which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping) |
|
|
|
################################################################################ |
|
# helpers |
|
|
|
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 |
|
[ "$a" = "q" ] && exit 1 |
|
fi |
|
fi |
|
|
|
[ "$VERBOSE" = "1" ] && echo |
|
} |
|
|
|
run_cmd() |
|
{ |
|
local cmd="$*" |
|
local out |
|
local rc |
|
|
|
if [ "$VERBOSE" = "1" ]; then |
|
echo "COMMAND: $cmd" |
|
fi |
|
|
|
out=$(eval $cmd 2>&1) |
|
rc=$? |
|
if [ "$VERBOSE" = "1" -a -n "$out" ]; then |
|
echo "$out" |
|
fi |
|
|
|
[ "$VERBOSE" = "1" ] && echo |
|
|
|
return $rc |
|
} |
|
|
|
################################################################################ |
|
# config |
|
|
|
create_ns() |
|
{ |
|
local ns=${1} |
|
|
|
ip netns del ${ns} 2>/dev/null |
|
|
|
ip netns add ${ns} |
|
ip -netns ${ns} addr add 127.0.0.1/8 dev lo |
|
ip -netns ${ns} link set lo up |
|
|
|
ip netns exec ${ns} sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1 |
|
case ${ns} in |
|
h*) |
|
ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0 |
|
;; |
|
r*) |
|
ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1 |
|
ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1 |
|
;; |
|
esac |
|
} |
|
|
|
setup() |
|
{ |
|
local ns |
|
local i |
|
|
|
#set -e |
|
|
|
for ns in h0 r1 h1 h2 h3 |
|
do |
|
create_ns ${ns} |
|
done |
|
|
|
# |
|
# create interconnects |
|
# |
|
|
|
for i in 0 1 2 3 |
|
do |
|
ip -netns h${i} li add eth0 type veth peer name r1h${i} |
|
ip -netns h${i} li set eth0 up |
|
ip -netns h${i} li set r1h${i} netns r1 name eth${i} up |
|
|
|
ip -netns h${i} addr add dev eth0 172.16.10${i}.1/24 |
|
ip -netns h${i} -6 addr add dev eth0 2001:db8:10${i}::1/64 |
|
ip -netns r1 addr add dev eth${i} 172.16.10${i}.254/24 |
|
ip -netns r1 -6 addr add dev eth${i} 2001:db8:10${i}::64/64 |
|
done |
|
|
|
ip -netns h0 nexthop add id 4 via 172.16.100.254 dev eth0 |
|
ip -netns h0 nexthop add id 6 via 2001:db8:100::64 dev eth0 |
|
|
|
# routing from h0 to h1-h3 and back |
|
for i in 1 2 3 |
|
do |
|
ip -netns h0 ro add 172.16.10${i}.0/24 nhid 4 |
|
ip -netns h${i} ro add 172.16.100.0/24 via 172.16.10${i}.254 |
|
|
|
ip -netns h0 -6 ro add 2001:db8:10${i}::/64 nhid 6 |
|
ip -netns h${i} -6 ro add 2001:db8:100::/64 via 2001:db8:10${i}::64 |
|
done |
|
|
|
if [ "$VERBOSE" = "1" ]; then |
|
echo |
|
echo "host 1 config" |
|
ip -netns h0 li sh |
|
ip -netns h0 ro sh |
|
ip -netns h0 -6 ro sh |
|
fi |
|
|
|
#set +e |
|
} |
|
|
|
cleanup() |
|
{ |
|
for n in h0 r1 h1 h2 h3 |
|
do |
|
ip netns del ${n} 2>/dev/null |
|
done |
|
} |
|
|
|
change_mtu() |
|
{ |
|
local hostid=$1 |
|
local mtu=$2 |
|
|
|
run_cmd ip -netns h${hostid} li set eth0 mtu ${mtu} |
|
run_cmd ip -netns r1 li set eth${hostid} mtu ${mtu} |
|
} |
|
|
|
################################################################################ |
|
# validate exceptions |
|
|
|
validate_v4_exception() |
|
{ |
|
local i=$1 |
|
local mtu=$2 |
|
local ping_sz=$3 |
|
local dst="172.16.10${i}.1" |
|
local h0=172.16.100.1 |
|
local r1=172.16.100.254 |
|
local rc |
|
|
|
if [ ${ping_sz} != "0" ]; then |
|
run_cmd ip netns exec h0 ping -s ${ping_sz} -c5 -w5 ${dst} |
|
fi |
|
|
|
if [ "$VERBOSE" = "1" ]; then |
|
echo "Route get" |
|
ip -netns h0 ro get ${dst} |
|
echo "Searching for:" |
|
echo " cache .* mtu ${mtu}" |
|
echo |
|
fi |
|
|
|
ip -netns h0 ro get ${dst} | \ |
|
grep -q "cache .* mtu ${mtu}" |
|
rc=$? |
|
|
|
log_test $rc 0 "IPv4: host 0 to host ${i}, mtu ${mtu}" |
|
} |
|
|
|
validate_v6_exception() |
|
{ |
|
local i=$1 |
|
local mtu=$2 |
|
local ping_sz=$3 |
|
local dst="2001:db8:10${i}::1" |
|
local h0=2001:db8:100::1 |
|
local r1=2001:db8:100::64 |
|
local rc |
|
|
|
if [ ${ping_sz} != "0" ]; then |
|
run_cmd ip netns exec h0 ${ping6} -s ${ping_sz} -c5 -w5 ${dst} |
|
fi |
|
|
|
if [ "$VERBOSE" = "1" ]; then |
|
echo "Route get" |
|
ip -netns h0 -6 ro get ${dst} |
|
echo "Searching for:" |
|
echo " ${dst} from :: via ${r1} dev eth0 src ${h0} .* mtu ${mtu}" |
|
echo |
|
fi |
|
|
|
ip -netns h0 -6 ro get ${dst} | \ |
|
grep -q "${dst} from :: via ${r1} dev eth0 src ${h0} .* mtu ${mtu}" |
|
rc=$? |
|
|
|
log_test $rc 0 "IPv6: host 0 to host ${i}, mtu ${mtu}" |
|
} |
|
|
|
################################################################################ |
|
# main |
|
|
|
while getopts :pv o |
|
do |
|
case $o in |
|
p) PAUSE_ON_FAIL=yes;; |
|
v) VERBOSE=1;; |
|
esac |
|
done |
|
|
|
cleanup |
|
setup |
|
sleep 2 |
|
|
|
cpus=$(cat /sys/devices/system/cpu/online) |
|
cpus="$(seq ${cpus/-/ })" |
|
ret=0 |
|
for i in 1 2 3 |
|
do |
|
# generate a cached route per-cpu |
|
for c in ${cpus}; do |
|
run_cmd taskset -c ${c} ip netns exec h0 ping -c1 -w1 172.16.10${i}.1 |
|
[ $? -ne 0 ] && printf "\nERROR: ping to h${i} failed\n" && ret=1 |
|
|
|
run_cmd taskset -c ${c} ip netns exec h0 ${ping6} -c1 -w1 2001:db8:10${i}::1 |
|
[ $? -ne 0 ] && printf "\nERROR: ping6 to h${i} failed\n" && ret=1 |
|
|
|
[ $ret -ne 0 ] && break |
|
done |
|
[ $ret -ne 0 ] && break |
|
done |
|
|
|
if [ $ret -eq 0 ]; then |
|
# generate different exceptions in h0 for h1, h2 and h3 |
|
change_mtu 1 1300 |
|
validate_v4_exception 1 1300 1350 |
|
validate_v6_exception 1 1300 1350 |
|
echo |
|
|
|
change_mtu 2 1350 |
|
validate_v4_exception 2 1350 1400 |
|
validate_v6_exception 2 1350 1400 |
|
echo |
|
|
|
change_mtu 3 1400 |
|
validate_v4_exception 3 1400 1450 |
|
validate_v6_exception 3 1400 1450 |
|
echo |
|
|
|
validate_v4_exception 1 1300 0 |
|
validate_v6_exception 1 1300 0 |
|
echo |
|
|
|
validate_v4_exception 2 1350 0 |
|
validate_v6_exception 2 1350 0 |
|
echo |
|
|
|
validate_v4_exception 3 1400 0 |
|
validate_v6_exception 3 1400 0 |
|
|
|
# targeted deletes to trigger cleanup paths in kernel |
|
ip -netns h0 ro del 172.16.102.0/24 nhid 4 |
|
ip -netns h0 -6 ro del 2001:db8:102::/64 nhid 6 |
|
|
|
ip -netns h0 nexthop del id 4 |
|
ip -netns h0 nexthop del id 6 |
|
fi |
|
|
|
cleanup
|
|
|