Commit c032dd8c authored by David Ahern's avatar David Ahern Committed by David S. Miller

selftests: Add ipv4 ping tests to fcnal-test

Add ping tests to fcnal-test.sh. Covers the permutations of directly
connected addresses, routed destinations, VRF and non-VRF, and expected
failures.

Setup includes unreachable routes and fib rules blocking traffic.
Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6f9d5cac
......@@ -447,6 +447,270 @@ setup()
sleep 1
}
################################################################################
# IPv4
ipv4_ping_novrf()
{
local a
#
# out
#
for a in ${NSB_IP} ${NSB_LO_IP}
do
log_start
run_cmd ping -c1 -w1 ${a}
log_test_addr ${a} $? 0 "ping out"
log_start
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 0 "ping out, device bind"
log_start
run_cmd ping -c1 -w1 -I ${NSA_LO_IP} ${a}
log_test_addr ${a} $? 0 "ping out, address bind"
done
#
# in
#
for a in ${NSA_IP} ${NSA_LO_IP}
do
log_start
run_cmd_nsb ping -c1 -w1 ${a}
log_test_addr ${a} $? 0 "ping in"
done
#
# local traffic
#
for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
do
log_start
run_cmd ping -c1 -w1 ${a}
log_test_addr ${a} $? 0 "ping local"
done
#
# local traffic, socket bound to device
#
# address on device
a=${NSA_IP}
log_start
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 0 "ping local, device bind"
# loopback addresses not reachable from device bind
# fails in a really weird way though because ipv4 special cases
# route lookups with oif set.
for a in ${NSA_LO_IP} 127.0.0.1
do
log_start
show_hint "Fails since address on loopback device is out of device scope"
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 1 "ping local, device bind"
done
#
# ip rule blocks reachability to remote address
#
log_start
setup_cmd ip rule add pref 32765 from all lookup local
setup_cmd ip rule del pref 0 from all lookup local
setup_cmd ip rule add pref 50 to ${NSB_LO_IP} prohibit
setup_cmd ip rule add pref 51 from ${NSB_IP} prohibit
a=${NSB_LO_IP}
run_cmd ping -c1 -w1 ${a}
log_test_addr ${a} $? 2 "ping out, blocked by rule"
# NOTE: ipv4 actually allows the lookup to fail and yet still create
# a viable rtable if the oif (e.g., bind to device) is set, so this
# case succeeds despite the rule
# run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
a=${NSA_LO_IP}
log_start
show_hint "Response generates ICMP (or arp request is ignored) due to ip rule"
run_cmd_nsb ping -c1 -w1 ${a}
log_test_addr ${a} $? 1 "ping in, blocked by rule"
[ "$VERBOSE" = "1" ] && echo
setup_cmd ip rule del pref 32765 from all lookup local
setup_cmd ip rule add pref 0 from all lookup local
setup_cmd ip rule del pref 50 to ${NSB_LO_IP} prohibit
setup_cmd ip rule del pref 51 from ${NSB_IP} prohibit
#
# route blocks reachability to remote address
#
log_start
setup_cmd ip route replace unreachable ${NSB_LO_IP}
setup_cmd ip route replace unreachable ${NSB_IP}
a=${NSB_LO_IP}
run_cmd ping -c1 -w1 ${a}
log_test_addr ${a} $? 2 "ping out, blocked by route"
# NOTE: ipv4 actually allows the lookup to fail and yet still create
# a viable rtable if the oif (e.g., bind to device) is set, so this
# case succeeds despite not having a route for the address
# run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
a=${NSA_LO_IP}
log_start
show_hint "Response is dropped (or arp request is ignored) due to ip route"
run_cmd_nsb ping -c1 -w1 ${a}
log_test_addr ${a} $? 1 "ping in, blocked by route"
#
# remove 'remote' routes; fallback to default
#
log_start
setup_cmd ip ro del ${NSB_LO_IP}
a=${NSB_LO_IP}
run_cmd ping -c1 -w1 ${a}
log_test_addr ${a} $? 2 "ping out, unreachable default route"
# NOTE: ipv4 actually allows the lookup to fail and yet still create
# a viable rtable if the oif (e.g., bind to device) is set, so this
# case succeeds despite not having a route for the address
# run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
}
ipv4_ping_vrf()
{
local a
# should default on; does not exist on older kernels
set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
#
# out
#
for a in ${NSB_IP} ${NSB_LO_IP}
do
log_start
run_cmd ping -c1 -w1 -I ${VRF} ${a}
log_test_addr ${a} $? 0 "ping out, VRF bind"
log_start
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 0 "ping out, device bind"
log_start
run_cmd ip vrf exec ${VRF} ping -c1 -w1 -I ${NSA_IP} ${a}
log_test_addr ${a} $? 0 "ping out, vrf device + dev address bind"
log_start
run_cmd ip vrf exec ${VRF} ping -c1 -w1 -I ${VRF_IP} ${a}
log_test_addr ${a} $? 0 "ping out, vrf device + vrf address bind"
done
#
# in
#
for a in ${NSA_IP} ${VRF_IP}
do
log_start
run_cmd_nsb ping -c1 -w1 ${a}
log_test_addr ${a} $? 0 "ping in"
done
#
# local traffic, local address
#
for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
do
log_start
show_hint "Source address should be ${a}"
run_cmd ping -c1 -w1 -I ${VRF} ${a}
log_test_addr ${a} $? 0 "ping local, VRF bind"
done
#
# local traffic, socket bound to device
#
# address on device
a=${NSA_IP}
log_start
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 0 "ping local, device bind"
# vrf device is out of scope
for a in ${VRF_IP} 127.0.0.1
do
log_start
show_hint "Fails since address on vrf device is out of device scope"
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 1 "ping local, device bind"
done
#
# ip rule blocks address
#
log_start
setup_cmd ip rule add pref 50 to ${NSB_LO_IP} prohibit
setup_cmd ip rule add pref 51 from ${NSB_IP} prohibit
a=${NSB_LO_IP}
run_cmd ping -c1 -w1 -I ${VRF} ${a}
log_test_addr ${a} $? 2 "ping out, vrf bind, blocked by rule"
log_start
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
a=${NSA_LO_IP}
log_start
show_hint "Response lost due to ip rule"
run_cmd_nsb ping -c1 -w1 ${a}
log_test_addr ${a} $? 1 "ping in, blocked by rule"
[ "$VERBOSE" = "1" ] && echo
setup_cmd ip rule del pref 50 to ${NSB_LO_IP} prohibit
setup_cmd ip rule del pref 51 from ${NSB_IP} prohibit
#
# remove 'remote' routes; fallback to default
#
log_start
setup_cmd ip ro del vrf ${VRF} ${NSB_LO_IP}
a=${NSB_LO_IP}
run_cmd ping -c1 -w1 -I ${VRF} ${a}
log_test_addr ${a} $? 2 "ping out, vrf bind, unreachable route"
log_start
run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
a=${NSA_LO_IP}
log_start
show_hint "Response lost by unreachable route"
run_cmd_nsb ping -c1 -w1 ${a}
log_test_addr ${a} $? 1 "ping in, unreachable route"
}
ipv4_ping()
{
log_section "IPv4 ping"
log_subsection "No VRF"
setup
set_sysctl net.ipv4.raw_l3mdev_accept=0 2>/dev/null
ipv4_ping_novrf
setup
set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
ipv4_ping_novrf
log_subsection "With VRF"
setup "yes"
ipv4_ping_vrf
}
################################################################################
# usage
......@@ -467,7 +731,7 @@ EOF
################################################################################
# main
TESTS_IPV4=""
TESTS_IPV4="ipv4_ping"
TESTS_IPV6=""
PAUSE_ON_FAIL=no
PAUSE=no
......@@ -506,6 +770,8 @@ declare -i nsuccess=0
for t in $TESTS
do
case $t in
ipv4_ping|ping) ipv4_ping;;
# setup namespaces and config, but do not run any tests
setup) setup; exit 0;;
vrf_setup) setup "yes"; exit 0;;
......
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