627 lines
14 KiB
Bash
627 lines
14 KiB
Bash
|
#!/bin/bash
|
||
|
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
#
|
||
|
|
# Copyright (c) 2019 David Ahern <dsahern@gmail.com>. All rights reserved.
|
||
|
|
# Copyright (c) 2020 Michael Jeanson <mjeanson@efficios.com>. All rights reserved.
|
||
|
|
#
|
||
|
|
# Requires CONFIG_NET_VRF, CONFIG_VETH, CONFIG_BRIDGE and CONFIG_NET_NS.
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Symmetric routing topology
|
||
|
|
#
|
||
|
|
# blue red
|
||
|
|
# +----+ .253 +----+ .253 +----+
|
||
|
|
# | h1 |-------------------| r1 |-------------------| h2 |
|
||
|
|
# +----+ .1 +----+ .2 +----+
|
||
|
|
# 172.16.1/24 172.16.2/24
|
||
|
|
# 2001:db8:16:1/64 2001:db8:16:2/64
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Route from h1 to h2 and back goes through r1, incoming vrf blue has a route
|
||
|
|
# to the outgoing vrf red for the n2 network and red has a route back to n1.
|
||
|
|
# The red VRF interface has a MTU of 1400.
|
||
|
|
#
|
||
|
|
# The first test sends a ping with a ttl of 1 from h1 to h2 and parses the
|
||
|
|
# output of the command to check that a ttl expired error is received.
|
||
|
|
#
|
||
|
|
# The second test runs traceroute from h1 to h2 and parses the output to check
|
||
|
|
# for a hop on r1.
|
||
|
|
#
|
||
|
|
# The third test sends a ping with a packet size of 1450 from h1 to h2 and
|
||
|
|
# parses the output of the command to check that a fragmentation error is
|
||
|
|
# received.
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Asymmetric routing topology
|
||
|
|
#
|
||
|
|
# This topology represents a customer setup where the issue with icmp errors
|
||
|
|
# and VRF route leaking was initialy reported. The MTU test isn't done here
|
||
|
|
# because of the lack of a return route in the red VRF.
|
||
|
|
#
|
||
|
|
# blue red
|
||
|
|
# .253 +----+ .253
|
||
|
|
# +----| r1 |----+
|
||
|
|
# | +----+ |
|
||
|
|
# +----+ | | +----+
|
||
|
|
# | h1 |--------------+ +--------------| h2 |
|
||
|
|
# +----+ .1 | | .2 +----+
|
||
|
|
# 172.16.1/24 | +----+ | 172.16.2/24
|
||
|
|
# 2001:db8:16:1/64 +----| r2 |----+ 2001:db8:16:2/64
|
||
|
|
# .254 +----+ .254
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Route from h1 to h2 goes through r1, incoming vrf blue has a route to the
|
||
|
|
# outgoing vrf red for the n2 network but red doesn't have a route back to n1.
|
||
|
|
# Route from h2 to h1 goes through r2.
|
||
|
|
#
|
||
|
|
# The objective is to check that the incoming vrf routing table is selected
|
||
|
|
# to send an ICMP error back to the source when the ttl of a packet reaches 1
|
||
|
|
# while it is forwarded between different vrfs.
|
||
|
|
|
||
|
|
VERBOSE=0
|
||
|
|
PAUSE_ON_FAIL=no
|
||
|
|
DEFAULT_TTYPE=sym
|
||
|
|
|
||
|
|
H1_N1=172.16.1.0/24
|
||
|
|
H1_N1_6=2001:db8:16:1::/64
|
||
|
|
|
||
|
|
H1_N1_IP=172.16.1.1
|
||
|
|
R1_N1_IP=172.16.1.253
|
||
|
|
R2_N1_IP=172.16.1.254
|
||
|
|
|
||
|
|
H1_N1_IP6=2001:db8:16:1::1
|
||
|
|
R1_N1_IP6=2001:db8:16:1::253
|
||
|
|
R2_N1_IP6=2001:db8:16:1::254
|
||
|
|
|
||
|
|
H2_N2=172.16.2.0/24
|
||
|
|
H2_N2_6=2001:db8:16:2::/64
|
||
|
|
|
||
|
|
H2_N2_IP=172.16.2.2
|
||
|
|
R1_N2_IP=172.16.2.253
|
||
|
|
R2_N2_IP=172.16.2.254
|
||
|
|
|
||
|
|
H2_N2_IP6=2001:db8:16:2::2
|
||
|
|
R1_N2_IP6=2001:db8:16:2::253
|
||
|
|
R2_N2_IP6=2001:db8:16:2::254
|
||
|
|
|
||
|
|
################################################################################
|
||
|
|
# helpers
|
||
|
|
|
||
|
|
log_section()
|
||
|
|
{
|
||
|
|
echo
|
||
|
|
echo "###########################################################################"
|
||
|
|
echo "$*"
|
||
|
|
echo "###########################################################################"
|
||
|
|
echo
|
||
|
|
}
|
||
|
|
|
||
|
|
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 -r a
|
||
|
|
[ "$a" = "q" ] && exit 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
run_cmd()
|
||
|
|
{
|
||
|
|
local cmd="$*"
|
||
|
|
local out
|
||
|
|
local rc
|
||
|
|
|
||
|
|
if [ "$VERBOSE" = "1" ]; then
|
||
|
|
echo "COMMAND: $cmd"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# shellcheck disable=SC2086
|
||
|
|
out=$(eval $cmd 2>&1)
|
||
|
|
rc=$?
|
||
|
|
if [ "$VERBOSE" = "1" ] && [ -n "$out" ]; then
|
||
|
|
echo "$out"
|
||
|
|
fi
|
||
|
|
|
||
|
|
[ "$VERBOSE" = "1" ] && echo
|
||
|
|
|
||
|
|
return $rc
|
||
|
|
}
|
||
|
|
|
||
|
|
run_cmd_grep()
|
||
|
|
{
|
||
|
|
local grep_pattern="$1"
|
||
|
|
shift
|
||
|
|
local cmd="$*"
|
||
|
|
local out
|
||
|
|
local rc
|
||
|
|
|
||
|
|
if [ "$VERBOSE" = "1" ]; then
|
||
|
|
echo "COMMAND: $cmd"
|
||
|
|
fi
|
||
|
|
|
||
|
|
# shellcheck disable=SC2086
|
||
|
|
out=$(eval $cmd 2>&1)
|
||
|
|
if [ "$VERBOSE" = "1" ] && [ -n "$out" ]; then
|
||
|
|
echo "$out"
|
||
|
|
fi
|
||
|
|
|
||
|
|
echo "$out" | grep -q "$grep_pattern"
|
||
|
|
rc=$?
|
||
|
|
|
||
|
|
[ "$VERBOSE" = "1" ] && echo
|
||
|
|
|
||
|
|
return $rc
|
||
|
|
}
|
||
|
|
|
||
|
|
################################################################################
|
||
|
|
# setup and teardown
|
||
|
|
|
||
|
|
cleanup()
|
||
|
|
{
|
||
|
|
local ns
|
||
|
|
|
||
|
|
for ns in h1 h2 r1 r2; do
|
||
|
|
ip netns del $ns 2>/dev/null
|
||
|
|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
setup_vrf()
|
||
|
|
{
|
||
|
|
local ns=$1
|
||
|
|
|
||
|
|
ip -netns "${ns}" rule del pref 0
|
||
|
|
ip -netns "${ns}" rule add pref 32765 from all lookup local
|
||
|
|
ip -netns "${ns}" -6 rule del pref 0
|
||
|
|
ip -netns "${ns}" -6 rule add pref 32765 from all lookup local
|
||
|
|
}
|
||
|
|
|
||
|
|
create_vrf()
|
||
|
|
{
|
||
|
|
local ns=$1
|
||
|
|
local vrf=$2
|
||
|
|
local table=$3
|
||
|
|
|
||
|
|
ip -netns "${ns}" link add "${vrf}" type vrf table "${table}"
|
||
|
|
ip -netns "${ns}" link set "${vrf}" up
|
||
|
|
ip -netns "${ns}" route add vrf "${vrf}" unreachable default metric 8192
|
||
|
|
ip -netns "${ns}" -6 route add vrf "${vrf}" unreachable default metric 8192
|
||
|
|
|
||
|
|
ip -netns "${ns}" addr add 127.0.0.1/8 dev "${vrf}"
|
||
|
|
ip -netns "${ns}" -6 addr add ::1 dev "${vrf}" nodad
|
||
|
|
}
|
||
|
|
|
||
|
|
setup_sym()
|
||
|
|
{
|
||
|
|
local ns
|
||
|
|
|
||
|
|
# make sure we are starting with a clean slate
|
||
|
|
cleanup
|
||
|
|
|
||
|
|
#
|
||
|
|
# create nodes as namespaces
|
||
|
|
#
|
||
|
|
for ns in h1 h2 r1; do
|
||
|
|
ip netns add $ns
|
||
|
|
ip -netns $ns link set lo up
|
||
|
|
|
||
|
|
case "${ns}" in
|
||
|
|
h[12]) ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
|
||
|
|
ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
|
||
|
|
;;
|
||
|
|
r1) 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
|
||
|
|
done
|
||
|
|
|
||
|
|
#
|
||
|
|
# create interconnects
|
||
|
|
#
|
||
|
|
ip -netns h1 link add eth0 type veth peer name r1h1
|
||
|
|
ip -netns h1 link set r1h1 netns r1 name eth0 up
|
||
|
|
|
||
|
|
ip -netns h2 link add eth0 type veth peer name r1h2
|
||
|
|
ip -netns h2 link set r1h2 netns r1 name eth1 up
|
||
|
|
|
||
|
|
#
|
||
|
|
# h1
|
||
|
|
#
|
||
|
|
ip -netns h1 addr add dev eth0 ${H1_N1_IP}/24
|
||
|
|
ip -netns h1 -6 addr add dev eth0 ${H1_N1_IP6}/64 nodad
|
||
|
|
ip -netns h1 link set eth0 up
|
||
|
|
|
||
|
|
# h1 to h2 via r1
|
||
|
|
ip -netns h1 route add ${H2_N2} via ${R1_N1_IP} dev eth0
|
||
|
|
ip -netns h1 -6 route add ${H2_N2_6} via "${R1_N1_IP6}" dev eth0
|
||
|
|
|
||
|
|
#
|
||
|
|
# h2
|
||
|
|
#
|
||
|
|
ip -netns h2 addr add dev eth0 ${H2_N2_IP}/24
|
||
|
|
ip -netns h2 -6 addr add dev eth0 ${H2_N2_IP6}/64 nodad
|
||
|
|
ip -netns h2 link set eth0 up
|
||
|
|
|
||
|
|
# h2 to h1 via r1
|
||
|
|
ip -netns h2 route add default via ${R1_N2_IP} dev eth0
|
||
|
|
ip -netns h2 -6 route add default via ${R1_N2_IP6} dev eth0
|
||
|
|
|
||
|
|
#
|
||
|
|
# r1
|
||
|
|
#
|
||
|
|
setup_vrf r1
|
||
|
|
create_vrf r1 blue 1101
|
||
|
|
create_vrf r1 red 1102
|
||
|
|
ip -netns r1 link set mtu 1400 dev eth1
|
||
|
|
ip -netns r1 link set eth0 vrf blue up
|
||
|
|
ip -netns r1 link set eth1 vrf red up
|
||
|
|
ip -netns r1 addr add dev eth0 ${R1_N1_IP}/24
|
||
|
|
ip -netns r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
|
||
|
|
ip -netns r1 addr add dev eth1 ${R1_N2_IP}/24
|
||
|
|
ip -netns r1 -6 addr add dev eth1 ${R1_N2_IP6}/64 nodad
|
||
|
|
|
||
|
|
# Route leak from blue to red
|
||
|
|
ip -netns r1 route add vrf blue ${H2_N2} dev red
|
||
|
|
ip -netns r1 -6 route add vrf blue ${H2_N2_6} dev red
|
||
|
|
|
||
|
|
# Route leak from red to blue
|
||
|
|
ip -netns r1 route add vrf red ${H1_N1} dev blue
|
||
|
|
ip -netns r1 -6 route add vrf red ${H1_N1_6} dev blue
|
||
|
|
|
||
|
|
|
||
|
|
# Wait for ip config to settle
|
||
|
|
sleep 2
|
||
|
|
}
|
||
|
|
|
||
|
|
setup_asym()
|
||
|
|
{
|
||
|
|
local ns
|
||
|
|
|
||
|
|
# make sure we are starting with a clean slate
|
||
|
|
cleanup
|
||
|
|
|
||
|
|
#
|
||
|
|
# create nodes as namespaces
|
||
|
|
#
|
||
|
|
for ns in h1 h2 r1 r2; do
|
||
|
|
ip netns add $ns
|
||
|
|
ip -netns $ns link set lo up
|
||
|
|
|
||
|
|
case "${ns}" in
|
||
|
|
h[12]) ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
|
||
|
|
ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
|
||
|
|
;;
|
||
|
|
r[12]) 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
|
||
|
|
done
|
||
|
|
|
||
|
|
#
|
||
|
|
# create interconnects
|
||
|
|
#
|
||
|
|
ip -netns h1 link add eth0 type veth peer name r1h1
|
||
|
|
ip -netns h1 link set r1h1 netns r1 name eth0 up
|
||
|
|
|
||
|
|
ip -netns h1 link add eth1 type veth peer name r2h1
|
||
|
|
ip -netns h1 link set r2h1 netns r2 name eth0 up
|
||
|
|
|
||
|
|
ip -netns h2 link add eth0 type veth peer name r1h2
|
||
|
|
ip -netns h2 link set r1h2 netns r1 name eth1 up
|
||
|
|
|
||
|
|
ip -netns h2 link add eth1 type veth peer name r2h2
|
||
|
|
ip -netns h2 link set r2h2 netns r2 name eth1 up
|
||
|
|
|
||
|
|
#
|
||
|
|
# h1
|
||
|
|
#
|
||
|
|
ip -netns h1 link add br0 type bridge
|
||
|
|
ip -netns h1 link set br0 up
|
||
|
|
ip -netns h1 addr add dev br0 ${H1_N1_IP}/24
|
||
|
|
ip -netns h1 -6 addr add dev br0 ${H1_N1_IP6}/64 nodad
|
||
|
|
ip -netns h1 link set eth0 master br0 up
|
||
|
|
ip -netns h1 link set eth1 master br0 up
|
||
|
|
|
||
|
|
# h1 to h2 via r1
|
||
|
|
ip -netns h1 route add ${H2_N2} via ${R1_N1_IP} dev br0
|
||
|
|
ip -netns h1 -6 route add ${H2_N2_6} via "${R1_N1_IP6}" dev br0
|
||
|
|
|
||
|
|
#
|
||
|
|
# h2
|
||
|
|
#
|
||
|
|
ip -netns h2 link add br0 type bridge
|
||
|
|
ip -netns h2 link set br0 up
|
||
|
|
ip -netns h2 addr add dev br0 ${H2_N2_IP}/24
|
||
|
|
ip -netns h2 -6 addr add dev br0 ${H2_N2_IP6}/64 nodad
|
||
|
|
ip -netns h2 link set eth0 master br0 up
|
||
|
|
ip -netns h2 link set eth1 master br0 up
|
||
|
|
|
||
|
|
# h2 to h1 via r2
|
||
|
|
ip -netns h2 route add default via ${R2_N2_IP} dev br0
|
||
|
|
ip -netns h2 -6 route add default via ${R2_N2_IP6} dev br0
|
||
|
|
|
||
|
|
#
|
||
|
|
# r1
|
||
|
|
#
|
||
|
|
setup_vrf r1
|
||
|
|
create_vrf r1 blue 1101
|
||
|
|
create_vrf r1 red 1102
|
||
|
|
ip -netns r1 link set mtu 1400 dev eth1
|
||
|
|
ip -netns r1 link set eth0 vrf blue up
|
||
|
|
ip -netns r1 link set eth1 vrf red up
|
||
|
|
ip -netns r1 addr add dev eth0 ${R1_N1_IP}/24
|
||
|
|
ip -netns r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
|
||
|
|
ip -netns r1 addr add dev eth1 ${R1_N2_IP}/24
|
||
|
|
ip -netns r1 -6 addr add dev eth1 ${R1_N2_IP6}/64 nodad
|
||
|
|
|
||
|
|
# Route leak from blue to red
|
||
|
|
ip -netns r1 route add vrf blue ${H2_N2} dev red
|
||
|
|
ip -netns r1 -6 route add vrf blue ${H2_N2_6} dev red
|
||
|
|
|
||
|
|
# No route leak from red to blue
|
||
|
|
|
||
|
|
#
|
||
|
|
# r2
|
||
|
|
#
|
||
|
|
ip -netns r2 addr add dev eth0 ${R2_N1_IP}/24
|
||
|
|
ip -netns r2 -6 addr add dev eth0 ${R2_N1_IP6}/64 nodad
|
||
|
|
ip -netns r2 addr add dev eth1 ${R2_N2_IP}/24
|
||
|
|
ip -netns r2 -6 addr add dev eth1 ${R2_N2_IP6}/64 nodad
|
||
|
|
|
||
|
|
# Wait for ip config to settle
|
||
|
|
sleep 2
|
||
|
|
}
|
||
|
|
|
||
|
|
check_connectivity()
|
||
|
|
{
|
||
|
|
ip netns exec h1 ping -c1 -w1 ${H2_N2_IP} >/dev/null 2>&1
|
||
|
|
log_test $? 0 "Basic IPv4 connectivity"
|
||
|
|
return $?
|
||
|
|
}
|
||
|
|
|
||
|
|
check_connectivity6()
|
||
|
|
{
|
||
|
|
ip netns exec h1 "${ping6}" -c1 -w1 ${H2_N2_IP6} >/dev/null 2>&1
|
||
|
|
log_test $? 0 "Basic IPv6 connectivity"
|
||
|
|
return $?
|
||
|
|
}
|
||
|
|
|
||
|
|
check_traceroute()
|
||
|
|
{
|
||
|
|
if [ ! -x "$(command -v traceroute)" ]; then
|
||
|
|
echo "SKIP: Could not run IPV4 test without traceroute"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
check_traceroute6()
|
||
|
|
{
|
||
|
|
if [ ! -x "$(command -v traceroute6)" ]; then
|
||
|
|
echo "SKIP: Could not run IPV6 test without traceroute6"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv4_traceroute()
|
||
|
|
{
|
||
|
|
local ttype="$1"
|
||
|
|
|
||
|
|
[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
|
||
|
|
|
||
|
|
log_section "IPv4 ($ttype route): VRF ICMP error route lookup traceroute"
|
||
|
|
|
||
|
|
check_traceroute || return
|
||
|
|
|
||
|
|
setup_"$ttype"
|
||
|
|
|
||
|
|
check_connectivity || return
|
||
|
|
|
||
|
|
run_cmd_grep "${R1_N1_IP}" ip netns exec h1 traceroute ${H2_N2_IP}
|
||
|
|
log_test $? 0 "Traceroute reports a hop on r1"
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv4_traceroute_asym()
|
||
|
|
{
|
||
|
|
ipv4_traceroute asym
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_traceroute()
|
||
|
|
{
|
||
|
|
local ttype="$1"
|
||
|
|
|
||
|
|
[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
|
||
|
|
|
||
|
|
log_section "IPv6 ($ttype route): VRF ICMP error route lookup traceroute"
|
||
|
|
|
||
|
|
check_traceroute6 || return
|
||
|
|
|
||
|
|
setup_"$ttype"
|
||
|
|
|
||
|
|
check_connectivity6 || return
|
||
|
|
|
||
|
|
run_cmd_grep "${R1_N1_IP6}" ip netns exec h1 traceroute6 ${H2_N2_IP6}
|
||
|
|
log_test $? 0 "Traceroute6 reports a hop on r1"
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_traceroute_asym()
|
||
|
|
{
|
||
|
|
ipv6_traceroute asym
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv4_ping_ttl()
|
||
|
|
{
|
||
|
|
local ttype="$1"
|
||
|
|
|
||
|
|
[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
|
||
|
|
|
||
|
|
log_section "IPv4 ($ttype route): VRF ICMP ttl error route lookup ping"
|
||
|
|
|
||
|
|
setup_"$ttype"
|
||
|
|
|
||
|
|
check_connectivity || return
|
||
|
|
|
||
|
|
run_cmd_grep "Time to live exceeded" ip netns exec h1 ping -t1 -c1 -W2 ${H2_N2_IP}
|
||
|
|
log_test $? 0 "Ping received ICMP ttl exceeded"
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv4_ping_ttl_asym()
|
||
|
|
{
|
||
|
|
ipv4_ping_ttl asym
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv4_ping_frag()
|
||
|
|
{
|
||
|
|
local ttype="$1"
|
||
|
|
|
||
|
|
[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
|
||
|
|
|
||
|
|
log_section "IPv4 ($ttype route): VRF ICMP fragmentation error route lookup ping"
|
||
|
|
|
||
|
|
setup_"$ttype"
|
||
|
|
|
||
|
|
check_connectivity || return
|
||
|
|
|
||
|
|
run_cmd_grep "Frag needed" ip netns exec h1 ping -s 1450 -Mdo -c1 -W2 ${H2_N2_IP}
|
||
|
|
log_test $? 0 "Ping received ICMP Frag needed"
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv4_ping_frag_asym()
|
||
|
|
{
|
||
|
|
ipv4_ping_frag asym
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_ping_ttl()
|
||
|
|
{
|
||
|
|
local ttype="$1"
|
||
|
|
|
||
|
|
[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
|
||
|
|
|
||
|
|
log_section "IPv6 ($ttype route): VRF ICMP ttl error route lookup ping"
|
||
|
|
|
||
|
|
setup_"$ttype"
|
||
|
|
|
||
|
|
check_connectivity6 || return
|
||
|
|
|
||
|
|
run_cmd_grep "Time exceeded: Hop limit" ip netns exec h1 "${ping6}" -t1 -c1 -W2 ${H2_N2_IP6}
|
||
|
|
log_test $? 0 "Ping received ICMP Hop limit"
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_ping_ttl_asym()
|
||
|
|
{
|
||
|
|
ipv6_ping_ttl asym
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_ping_frag()
|
||
|
|
{
|
||
|
|
local ttype="$1"
|
||
|
|
|
||
|
|
[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
|
||
|
|
|
||
|
|
log_section "IPv6 ($ttype route): VRF ICMP fragmentation error route lookup ping"
|
||
|
|
|
||
|
|
setup_"$ttype"
|
||
|
|
|
||
|
|
check_connectivity6 || return
|
||
|
|
|
||
|
|
run_cmd_grep "Packet too big" ip netns exec h1 "${ping6}" -s 1450 -Mdo -c1 -W2 ${H2_N2_IP6}
|
||
|
|
log_test $? 0 "Ping received ICMP Packet too big"
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_ping_frag_asym()
|
||
|
|
{
|
||
|
|
ipv6_ping_frag asym
|
||
|
|
}
|
||
|
|
|
||
|
|
################################################################################
|
||
|
|
# usage
|
||
|
|
|
||
|
|
usage()
|
||
|
|
{
|
||
|
|
cat <<EOF
|
||
|
|
usage: ${0##*/} OPTS
|
||
|
|
|
||
|
|
-4 Run IPv4 tests only
|
||
|
|
-6 Run IPv6 tests only
|
||
|
|
-t TEST Run only TEST
|
||
|
|
-p Pause on fail
|
||
|
|
-v verbose mode (show commands and output)
|
||
|
|
EOF
|
||
|
|
}
|
||
|
|
|
||
|
|
################################################################################
|
||
|
|
# main
|
||
|
|
|
||
|
|
# Some systems don't have a ping6 binary anymore
|
||
|
|
command -v ping6 > /dev/null 2>&1 && ping6=$(command -v ping6) || ping6=$(command -v ping)
|
||
|
|
|
||
|
|
TESTS_IPV4="ipv4_ping_ttl ipv4_traceroute ipv4_ping_frag ipv4_ping_ttl_asym ipv4_traceroute_asym"
|
||
|
|
TESTS_IPV6="ipv6_ping_ttl ipv6_traceroute ipv6_ping_frag ipv6_ping_ttl_asym ipv6_traceroute_asym"
|
||
|
|
|
||
|
|
ret=0
|
||
|
|
nsuccess=0
|
||
|
|
nfail=0
|
||
|
|
|
||
|
|
while getopts :46t:pvh o
|
||
|
|
do
|
||
|
|
case $o in
|
||
|
|
4) TESTS=ipv4;;
|
||
|
|
6) TESTS=ipv6;;
|
||
|
|
t) TESTS=$OPTARG;;
|
||
|
|
p) PAUSE_ON_FAIL=yes;;
|
||
|
|
v) VERBOSE=1;;
|
||
|
|
h) usage; exit 0;;
|
||
|
|
*) usage; exit 1;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
#
|
||
|
|
# show user test config
|
||
|
|
#
|
||
|
|
if [ -z "$TESTS" ]; then
|
||
|
|
TESTS="$TESTS_IPV4 $TESTS_IPV6"
|
||
|
|
elif [ "$TESTS" = "ipv4" ]; then
|
||
|
|
TESTS="$TESTS_IPV4"
|
||
|
|
elif [ "$TESTS" = "ipv6" ]; then
|
||
|
|
TESTS="$TESTS_IPV6"
|
||
|
|
fi
|
||
|
|
|
||
|
|
for t in $TESTS
|
||
|
|
do
|
||
|
|
case $t in
|
||
|
|
ipv4_ping_ttl|ping) ipv4_ping_ttl;;&
|
||
|
|
ipv4_ping_ttl_asym|ping) ipv4_ping_ttl_asym;;&
|
||
|
|
ipv4_traceroute|traceroute) ipv4_traceroute;;&
|
||
|
|
ipv4_traceroute_asym|traceroute) ipv4_traceroute_asym;;&
|
||
|
|
ipv4_ping_frag|ping) ipv4_ping_frag;;&
|
||
|
|
|
||
|
|
ipv6_ping_ttl|ping) ipv6_ping_ttl;;&
|
||
|
|
ipv6_ping_ttl_asym|ping) ipv6_ping_ttl_asym;;&
|
||
|
|
ipv6_traceroute|traceroute) ipv6_traceroute;;&
|
||
|
|
ipv6_traceroute_asym|traceroute) ipv6_traceroute_asym;;&
|
||
|
|
ipv6_ping_frag|ping) ipv6_ping_frag;;&
|
||
|
|
|
||
|
|
# setup namespaces and config, but do not run any tests
|
||
|
|
setup_sym|setup) setup_sym; exit 0;;
|
||
|
|
setup_asym) setup_asym; exit 0;;
|
||
|
|
|
||
|
|
help) echo "Test names: $TESTS"; exit 0;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
cleanup
|
||
|
|
|
||
|
|
printf "\nTests passed: %3d\n" ${nsuccess}
|
||
|
|
printf "Tests failed: %3d\n" ${nfail}
|
||
|
|
|
||
|
|
exit $ret
|