Commit cfc1d91a authored by David S. Miller's avatar David S. Miller

Merge branch 'dsa-selftests'

Vladimir Oltean says:

====================
DSA selftests

When working on complex new features or reworks it becomes increasingly
difficult to ensure there aren't regressions being introduced, and
therefore it would be nice if we could go over the functionality we
already have and write some tests for it.

Verbally I know from Tobias Waldekranz that he has been working on some
selftests for DSA, yet I have never seen them, so here I am adding some
tests I have written which have been useful for me. The list is by no
means complete (it only covers elementary functionality), but it's still
good to have as a starting point. I also borrowed some refactoring
changes from Joachim Wiberg that he submitted for his "net: bridge:
forwarding of unknown IPv4/IPv6/MAC BUM traffic" series, but not the
entirety of his selftests. I now think that his selftests have some
overlap with bridge_vlan_unaware.sh and bridge_vlan_aware.sh and they
should be more tightly integrated with each other - yet I didn't do that
either :). Another issue I had with his selftests was that they jumped
straight ahead to configure brport flags on br0 (a radical new idea
still at RFC status) while we have bigger problems, and we don't have
nearly enough coverage for the *existing* functionality.

One idea introduced here which I haven't seen before is the symlinking
of relevant forwarding selftests to the selftests/drivers/net/<my-driver>/
folder, plus a forwarding.config file. I think there's some value in
having things structured this way, since the forwarding dir has so many
selftests that aren't relevant to DSA that it is a bit difficult to find
the ones that are.

While searching for applications that I could use for multicast testing
(not my domain of interest/knowledge really), I found Joachim Wiberg's
mtools, mcjoin and omping, and I tried them all with various degrees of
success. In particular, I was going to use mcjoin, but I faced some
issues getting IPv6 multicast traffic to work in a VRF, and I bothered
David Ahern about it here:
https://lore.kernel.org/netdev/97eaffb8-2125-834e-641f-c99c097b6ee2@gmail.com/t/
It seems that the problem is that this application should use
SO_BINDTODEVICE, yet it doesn't.

So I ended up patching the bare-bones mtools (msend, mreceive) forked by
Joachim from the University of Virginia's Multimedia Networks Group to
include IPv6 support, and to use SO_BINDTODEVICE. This is what I'm using
now for IPv6.

Note that mausezahn doesn't appear to do a particularly good job of
supporting IPv6 really, and I needed a program to emit the actual
IP_ADD_MEMBERSHIP calls, for dev_mc_add(), so I could test RX filtering.
Crafting the IGMP/MLD reports by hand doesn't really do the trick.
While extremely bare-bones, the mreceive application now seems to do
what I need it to.

Feedback appreciated, it is very likely that I could have done things in
a better way.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 988998ac 07c8a2dd
../../../net/forwarding/bridge_locked_port.sh
\ No newline at end of file
../../../net/forwarding/bridge_mdb.sh
\ No newline at end of file
../../../net/forwarding/bridge_mld.sh
\ No newline at end of file
../../../net/forwarding/bridge_vlan_aware.sh
\ No newline at end of file
../../../net/forwarding/bridge_vlan_mcast.sh
\ No newline at end of file
../../../net/forwarding/bridge_vlan_unaware.sh
\ No newline at end of file
../../../net/forwarding/lib.sh
\ No newline at end of file
../../../net/forwarding/local_termination.sh
\ No newline at end of file
../../../net/forwarding/no_forwarding.sh
\ No newline at end of file
...@@ -215,15 +215,15 @@ test_vlan_pop() ...@@ -215,15 +215,15 @@ test_vlan_pop()
sleep 1 sleep 1
tcpdump_stop tcpdump_stop $eth2
if tcpdump_show | grep -q "$eth3_mac > $eth2_mac, ethertype IPv4"; then if tcpdump_show $eth2 | grep -q "$eth3_mac > $eth2_mac, ethertype IPv4"; then
echo "OK" echo "OK"
else else
echo "FAIL" echo "FAIL"
fi fi
tcpdump_cleanup tcpdump_cleanup $eth2
} }
test_vlan_push() test_vlan_push()
...@@ -236,15 +236,15 @@ test_vlan_push() ...@@ -236,15 +236,15 @@ test_vlan_push()
sleep 1 sleep 1
tcpdump_stop tcpdump_stop $eth3.100
if tcpdump_show | grep -q "$eth2_mac > $eth3_mac"; then if tcpdump_show $eth3.100 | grep -q "$eth2_mac > $eth3_mac"; then
echo "OK" echo "OK"
else else
echo "FAIL" echo "FAIL"
fi fi
tcpdump_cleanup tcpdump_cleanup $eth3.100
} }
test_vlan_ingress_modify() test_vlan_ingress_modify()
...@@ -267,15 +267,15 @@ test_vlan_ingress_modify() ...@@ -267,15 +267,15 @@ test_vlan_ingress_modify()
sleep 1 sleep 1
tcpdump_stop tcpdump_stop $eth2
if tcpdump_show | grep -q "$eth3_mac > $eth2_mac, .* vlan 300"; then if tcpdump_show $eth2 | grep -q "$eth3_mac > $eth2_mac, .* vlan 300"; then
echo "OK" echo "OK"
else else
echo "FAIL" echo "FAIL"
fi fi
tcpdump_cleanup tcpdump_cleanup $eth2
tc filter del dev $eth0 ingress chain $(IS1 2) pref 3 tc filter del dev $eth0 ingress chain $(IS1 2) pref 3
...@@ -305,15 +305,15 @@ test_vlan_egress_modify() ...@@ -305,15 +305,15 @@ test_vlan_egress_modify()
sleep 1 sleep 1
tcpdump_stop tcpdump_stop $eth2
if tcpdump_show | grep -q "$eth3_mac > $eth2_mac, .* vlan 300"; then if tcpdump_show $eth2 | grep -q "$eth3_mac > $eth2_mac, .* vlan 300"; then
echo "OK" echo "OK"
else else
echo "FAIL" echo "FAIL"
fi fi
tcpdump_cleanup tcpdump_cleanup $eth2
tc filter del dev $eth1 egress chain $(ES0) pref 3 tc filter del dev $eth1 egress chain $(ES0) pref 3
tc qdisc del dev $eth1 clsact tc qdisc del dev $eth1 clsact
......
...@@ -27,6 +27,9 @@ INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600} ...@@ -27,6 +27,9 @@ INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600}
LOW_AGEING_TIME=${LOW_AGEING_TIME:=1000} LOW_AGEING_TIME=${LOW_AGEING_TIME:=1000}
REQUIRE_JQ=${REQUIRE_JQ:=yes} REQUIRE_JQ=${REQUIRE_JQ:=yes}
REQUIRE_MZ=${REQUIRE_MZ:=yes} REQUIRE_MZ=${REQUIRE_MZ:=yes}
REQUIRE_MTOOLS=${REQUIRE_MTOOLS:=no}
STABLE_MAC_ADDRS=${STABLE_MAC_ADDRS:=no}
TCPDUMP_EXTRA_FLAGS=${TCPDUMP_EXTRA_FLAGS:=}
relative_path="${BASH_SOURCE%/*}" relative_path="${BASH_SOURCE%/*}"
if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
...@@ -159,6 +162,12 @@ fi ...@@ -159,6 +162,12 @@ fi
if [[ "$REQUIRE_MZ" = "yes" ]]; then if [[ "$REQUIRE_MZ" = "yes" ]]; then
require_command $MZ require_command $MZ
fi fi
if [[ "$REQUIRE_MTOOLS" = "yes" ]]; then
# https://github.com/vladimiroltean/mtools/
# patched for IPv6 support
require_command msend
require_command mreceive
fi
if [[ ! -v NUM_NETIFS ]]; then if [[ ! -v NUM_NETIFS ]]; then
echo "SKIP: importer does not define \"NUM_NETIFS\"" echo "SKIP: importer does not define \"NUM_NETIFS\""
...@@ -214,10 +223,41 @@ create_netif() ...@@ -214,10 +223,41 @@ create_netif()
esac esac
} }
declare -A MAC_ADDR_ORIG
mac_addr_prepare()
{
local new_addr=
local dev=
for ((i = 1; i <= NUM_NETIFS; ++i)); do
dev=${NETIFS[p$i]}
new_addr=$(printf "00:01:02:03:04:%02x" $i)
MAC_ADDR_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].address')
# Strip quotes
MAC_ADDR_ORIG["$dev"]=${MAC_ADDR_ORIG["$dev"]//\"/}
ip link set dev $dev address $new_addr
done
}
mac_addr_restore()
{
local dev=
for ((i = 1; i <= NUM_NETIFS; ++i)); do
dev=${NETIFS[p$i]}
ip link set dev $dev address ${MAC_ADDR_ORIG["$dev"]}
done
}
if [[ "$NETIF_CREATE" = "yes" ]]; then if [[ "$NETIF_CREATE" = "yes" ]]; then
create_netif create_netif
fi fi
if [[ "$STABLE_MAC_ADDRS" = "yes" ]]; then
mac_addr_prepare
fi
for ((i = 1; i <= NUM_NETIFS; ++i)); do for ((i = 1; i <= NUM_NETIFS; ++i)); do
ip link show dev ${NETIFS[p$i]} &> /dev/null ip link show dev ${NETIFS[p$i]} &> /dev/null
if [[ $? -ne 0 ]]; then if [[ $? -ne 0 ]]; then
...@@ -503,6 +543,10 @@ pre_cleanup() ...@@ -503,6 +543,10 @@ pre_cleanup()
echo "Pausing before cleanup, hit any key to continue" echo "Pausing before cleanup, hit any key to continue"
read read
fi fi
if [[ "$STABLE_MAC_ADDRS" = "yes" ]]; then
mac_addr_restore
fi
} }
vrf_prepare() vrf_prepare()
...@@ -824,6 +868,15 @@ mac_get() ...@@ -824,6 +868,15 @@ mac_get()
ip -j link show dev $if_name | jq -r '.[]["address"]' ip -j link show dev $if_name | jq -r '.[]["address"]'
} }
ipv6_lladdr_get()
{
local if_name=$1
ip -j addr show dev $if_name | \
jq -r '.[]["addr_info"][] | select(.scope == "link").local' | \
head -1
}
bridge_ageing_time_get() bridge_ageing_time_get()
{ {
local bridge=$1 local bridge=$1
...@@ -1349,13 +1402,17 @@ stop_traffic() ...@@ -1349,13 +1402,17 @@ stop_traffic()
{ kill %% && wait %%; } 2>/dev/null { kill %% && wait %%; } 2>/dev/null
} }
declare -A cappid
declare -A capfile
declare -A capout
tcpdump_start() tcpdump_start()
{ {
local if_name=$1; shift local if_name=$1; shift
local ns=$1; shift local ns=$1; shift
capfile=$(mktemp) capfile[$if_name]=$(mktemp)
capout=$(mktemp) capout[$if_name]=$(mktemp)
if [ -z $ns ]; then if [ -z $ns ]; then
ns_cmd="" ns_cmd=""
...@@ -1369,27 +1426,35 @@ tcpdump_start() ...@@ -1369,27 +1426,35 @@ tcpdump_start()
capuser="-Z $SUDO_USER" capuser="-Z $SUDO_USER"
fi fi
$ns_cmd tcpdump -e -n -Q in -i $if_name \ $ns_cmd tcpdump $TCPDUMP_EXTRA_FLAGS -e -n -Q in -i $if_name \
-s 65535 -B 32768 $capuser -w $capfile > "$capout" 2>&1 & -s 65535 -B 32768 $capuser -w ${capfile[$if_name]} \
cappid=$! > "${capout[$if_name]}" 2>&1 &
cappid[$if_name]=$!
sleep 1 sleep 1
} }
tcpdump_stop() tcpdump_stop()
{ {
$ns_cmd kill $cappid local if_name=$1
local pid=${cappid[$if_name]}
$ns_cmd kill "$pid" && wait "$pid"
sleep 1 sleep 1
} }
tcpdump_cleanup() tcpdump_cleanup()
{ {
rm $capfile $capout local if_name=$1
rm ${capfile[$if_name]} ${capout[$if_name]}
} }
tcpdump_show() tcpdump_show()
{ {
tcpdump -e -n -r $capfile 2>&1 local if_name=$1
tcpdump -e -n -r ${capfile[$if_name]} 2>&1
} }
# return 0 if the packet wasn't seen on host2_if or 1 if it was # return 0 if the packet wasn't seen on host2_if or 1 if it was
...@@ -1499,6 +1564,37 @@ brmcast_check_sg_state() ...@@ -1499,6 +1564,37 @@ brmcast_check_sg_state()
done done
} }
mc_join()
{
local if_name=$1
local group=$2
local vrf_name=$(master_name_get $if_name)
# We don't care about actual reception, just about joining the
# IP multicast group and adding the L2 address to the device's
# MAC filtering table
ip vrf exec $vrf_name \
mreceive -g $group -I $if_name > /dev/null 2>&1 &
mreceive_pid=$!
sleep 1
}
mc_leave()
{
kill "$mreceive_pid" && wait "$mreceive_pid"
}
mc_send()
{
local if_name=$1
local groups=$2
local vrf_name=$(master_name_get $if_name)
ip vrf exec $vrf_name \
msend -g $groups -I $if_name -c 1 > /dev/null 2>&1
}
start_ip_monitor() start_ip_monitor()
{ {
local mtype=$1; shift local mtype=$1; shift
......
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="standalone bridge"
NUM_NETIFS=2
PING_COUNT=1
REQUIRE_MTOOLS=yes
REQUIRE_MZ=no
source lib.sh
H1_IPV4="192.0.2.1"
H2_IPV4="192.0.2.2"
H1_IPV6="2001:db8:1::1"
H2_IPV6="2001:db8:1::2"
BRIDGE_ADDR="00:00:de:ad:be:ee"
MACVLAN_ADDR="00:00:de:ad:be:ef"
UNKNOWN_UC_ADDR1="de:ad:be:ef:ee:03"
UNKNOWN_UC_ADDR2="de:ad:be:ef:ee:04"
UNKNOWN_UC_ADDR3="de:ad:be:ef:ee:05"
JOINED_IPV4_MC_ADDR="225.1.2.3"
UNKNOWN_IPV4_MC_ADDR1="225.1.2.4"
UNKNOWN_IPV4_MC_ADDR2="225.1.2.5"
UNKNOWN_IPV4_MC_ADDR3="225.1.2.6"
JOINED_IPV6_MC_ADDR="ff2e::0102:0304"
UNKNOWN_IPV6_MC_ADDR1="ff2e::0102:0305"
UNKNOWN_IPV6_MC_ADDR2="ff2e::0102:0306"
UNKNOWN_IPV6_MC_ADDR3="ff2e::0102:0307"
JOINED_MACV4_MC_ADDR="01:00:5e:01:02:03"
UNKNOWN_MACV4_MC_ADDR1="01:00:5e:01:02:04"
UNKNOWN_MACV4_MC_ADDR2="01:00:5e:01:02:05"
UNKNOWN_MACV4_MC_ADDR3="01:00:5e:01:02:06"
JOINED_MACV6_MC_ADDR="33:33:01:02:03:04"
UNKNOWN_MACV6_MC_ADDR1="33:33:01:02:03:05"
UNKNOWN_MACV6_MC_ADDR2="33:33:01:02:03:06"
UNKNOWN_MACV6_MC_ADDR3="33:33:01:02:03:07"
NON_IP_MC="01:02:03:04:05:06"
NON_IP_PKT="00:04 48:45:4c:4f"
BC="ff:ff:ff:ff:ff:ff"
# Disable promisc to ensure we don't receive unknown MAC DA packets
export TCPDUMP_EXTRA_FLAGS="-pl"
h1=${NETIFS[p1]}
h2=${NETIFS[p2]}
send_non_ip()
{
local if_name=$1
local smac=$2
local dmac=$3
$MZ -q $if_name "$dmac $smac $NON_IP_PKT"
}
send_uc_ipv4()
{
local if_name=$1
local dmac=$2
ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
ping_do $if_name $H2_IPV4
ip neigh del $H2_IPV4 dev $if_name
}
check_rcv()
{
local if_name=$1
local type=$2
local pattern=$3
local should_receive=$4
local should_fail=
[ $should_receive = true ] && should_fail=0 || should_fail=1
RET=0
tcpdump_show $if_name | grep -q "$pattern"
check_err_fail "$should_fail" "$?" "reception"
log_test "$if_name: $type"
}
mc_route_prepare()
{
local if_name=$1
local vrf_name=$(master_name_get $if_name)
ip route add 225.100.1.0/24 dev $if_name vrf $vrf_name
ip -6 route add ff2e::/64 dev $if_name vrf $vrf_name
}
mc_route_destroy()
{
local if_name=$1
local vrf_name=$(master_name_get $if_name)
ip route del 225.100.1.0/24 dev $if_name vrf $vrf_name
ip -6 route del ff2e::/64 dev $if_name vrf $vrf_name
}
run_test()
{
local rcv_if_name=$1
local smac=$(mac_get $h1)
local rcv_dmac=$(mac_get $rcv_if_name)
tcpdump_start $rcv_if_name
mc_route_prepare $h1
mc_route_prepare $rcv_if_name
send_uc_ipv4 $h1 $rcv_dmac
send_uc_ipv4 $h1 $MACVLAN_ADDR
send_uc_ipv4 $h1 $UNKNOWN_UC_ADDR1
ip link set dev $rcv_if_name promisc on
send_uc_ipv4 $h1 $UNKNOWN_UC_ADDR2
mc_send $h1 $UNKNOWN_IPV4_MC_ADDR2
mc_send $h1 $UNKNOWN_IPV6_MC_ADDR2
ip link set dev $rcv_if_name promisc off
mc_join $rcv_if_name $JOINED_IPV4_MC_ADDR
mc_send $h1 $JOINED_IPV4_MC_ADDR
mc_leave
mc_join $rcv_if_name $JOINED_IPV6_MC_ADDR
mc_send $h1 $JOINED_IPV6_MC_ADDR
mc_leave
mc_send $h1 $UNKNOWN_IPV4_MC_ADDR1
mc_send $h1 $UNKNOWN_IPV6_MC_ADDR1
ip link set dev $rcv_if_name allmulticast on
send_uc_ipv4 $h1 $UNKNOWN_UC_ADDR3
mc_send $h1 $UNKNOWN_IPV4_MC_ADDR3
mc_send $h1 $UNKNOWN_IPV6_MC_ADDR3
ip link set dev $rcv_if_name allmulticast off
mc_route_destroy $rcv_if_name
mc_route_destroy $h1
sleep 1
tcpdump_stop $rcv_if_name
check_rcv $rcv_if_name "Unicast IPv4 to primary MAC address" \
"$smac > $rcv_dmac, ethertype IPv4 (0x0800)" \
true
check_rcv $rcv_if_name "Unicast IPv4 to macvlan MAC address" \
"$smac > $MACVLAN_ADDR, ethertype IPv4 (0x0800)" \
true
check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address" \
"$smac > $UNKNOWN_UC_ADDR1, ethertype IPv4 (0x0800)" \
false
check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address, promisc" \
"$smac > $UNKNOWN_UC_ADDR2, ethertype IPv4 (0x0800)" \
true
check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address, allmulti" \
"$smac > $UNKNOWN_UC_ADDR3, ethertype IPv4 (0x0800)" \
false
check_rcv $rcv_if_name "Multicast IPv4 to joined group" \
"$smac > $JOINED_MACV4_MC_ADDR, ethertype IPv4 (0x0800)" \
true
check_rcv $rcv_if_name "Multicast IPv4 to unknown group" \
"$smac > $UNKNOWN_MACV4_MC_ADDR1, ethertype IPv4 (0x0800)" \
false
check_rcv $rcv_if_name "Multicast IPv4 to unknown group, promisc" \
"$smac > $UNKNOWN_MACV4_MC_ADDR2, ethertype IPv4 (0x0800)" \
true
check_rcv $rcv_if_name "Multicast IPv4 to unknown group, allmulti" \
"$smac > $UNKNOWN_MACV4_MC_ADDR3, ethertype IPv4 (0x0800)" \
true
check_rcv $rcv_if_name "Multicast IPv6 to joined group" \
"$smac > $JOINED_MACV6_MC_ADDR, ethertype IPv6 (0x86dd)" \
true
check_rcv $rcv_if_name "Multicast IPv6 to unknown group" \
"$smac > $UNKNOWN_MACV6_MC_ADDR1, ethertype IPv6 (0x86dd)" \
false
check_rcv $rcv_if_name "Multicast IPv6 to unknown group, promisc" \
"$smac > $UNKNOWN_MACV6_MC_ADDR2, ethertype IPv6 (0x86dd)" \
true
check_rcv $rcv_if_name "Multicast IPv6 to unknown group, allmulti" \
"$smac > $UNKNOWN_MACV6_MC_ADDR3, ethertype IPv6 (0x86dd)" \
true
tcpdump_cleanup $rcv_if_name
}
h1_create()
{
simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
}
h1_destroy()
{
simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
}
h2_create()
{
simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
}
h2_destroy()
{
simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
}
bridge_create()
{
ip link add br0 type bridge
ip link set br0 address $BRIDGE_ADDR
ip link set br0 up
ip link set $h2 master br0
ip link set $h2 up
simple_if_init br0 $H2_IPV4/24 $H2_IPV6/64
}
bridge_destroy()
{
simple_if_fini br0 $H2_IPV4/24 $H2_IPV6/64
ip link del br0
}
standalone()
{
h1_create
h2_create
ip link add link $h2 name macvlan0 type macvlan mode private
ip link set macvlan0 address $MACVLAN_ADDR
ip link set macvlan0 up
run_test $h2
ip link del macvlan0
h2_destroy
h1_destroy
}
bridge()
{
h1_create
bridge_create
ip link add link br0 name macvlan0 type macvlan mode private
ip link set macvlan0 address $MACVLAN_ADDR
ip link set macvlan0 up
run_test br0
ip link del macvlan0
bridge_destroy
h1_destroy
}
cleanup()
{
pre_cleanup
vrf_cleanup
}
setup_prepare()
{
vrf_prepare
# setup_wait() needs this
ip link set $h1 up
ip link set $h2 up
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="standalone two_bridges one_bridge_two_pvids"
NUM_NETIFS=4
source lib.sh
h1=${NETIFS[p1]}
h2=${NETIFS[p3]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p4]}
H1_IPV4="192.0.2.1"
H2_IPV4="192.0.2.2"
H1_IPV6="2001:db8:1::1"
H2_IPV6="2001:db8:1::2"
IPV4_ALLNODES="224.0.0.1"
IPV6_ALLNODES="ff02::1"
MACV4_ALLNODES="01:00:5e:00:00:01"
MACV6_ALLNODES="33:33:00:00:00:01"
NON_IP_MC="01:02:03:04:05:06"
NON_IP_PKT="00:04 48:45:4c:4f"
BC="ff:ff:ff:ff:ff:ff"
# The full 4K VLAN space is too much to check, so strategically pick some
# values which should provide reasonable coverage
vids=(0 1 2 5 10 20 50 100 200 500 1000 1000 2000 4000 4094)
send_non_ip()
{
local if_name=$1
local smac=$2
local dmac=$3
$MZ -q $if_name "$dmac $smac $NON_IP_PKT"
}
send_uc_ipv4()
{
local if_name=$1
local dmac=$2
ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
ping_do $if_name $H2_IPV4
ip neigh del $H2_IPV4 dev $if_name
}
send_mc_ipv4()
{
local if_name=$1
ping_do $if_name $IPV4_ALLNODES "-I $if_name"
}
send_uc_ipv6()
{
local if_name=$1
local dmac=$2
ip -6 neigh add $H2_IPV6 lladdr $dmac dev $if_name
ping6_do $if_name $H2_IPV6
ip -6 neigh del $H2_IPV6 dev $if_name
}
send_mc_ipv6()
{
local if_name=$1
ping6_do $if_name $IPV6_ALLNODES%$if_name
}
check_rcv()
{
local if_name=$1
local type=$2
local pattern=$3
local should_fail=1
RET=0
tcpdump_show $if_name | grep -q "$pattern"
check_err_fail "$should_fail" "$?" "reception"
log_test "$type"
}
run_test()
{
local test_name="$1"
local smac=$(mac_get $h1)
local dmac=$(mac_get $h2)
local h1_ipv6_lladdr=$(ipv6_lladdr_get $h1)
local vid=
echo "$test_name: Sending packets"
tcpdump_start $h2
send_non_ip $h1 $smac $dmac
send_non_ip $h1 $smac $NON_IP_MC
send_non_ip $h1 $smac $BC
send_uc_ipv4 $h1 $dmac
send_mc_ipv4 $h1
send_uc_ipv6 $h1 $dmac
send_mc_ipv6 $h1
for vid in "${vids[@]}"; do
vlan_create $h1 $vid
simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64
send_non_ip $h1.$vid $smac $dmac
send_non_ip $h1.$vid $smac $NON_IP_MC
send_non_ip $h1.$vid $smac $BC
send_uc_ipv4 $h1.$vid $dmac
send_mc_ipv4 $h1.$vid
send_uc_ipv6 $h1.$vid $dmac
send_mc_ipv6 $h1.$vid
simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
vlan_destroy $h1 $vid
done
sleep 1
echo "$test_name: Checking which packets were received"
tcpdump_stop $h2
check_rcv $h2 "$test_name: Unicast non-IP untagged" \
"$smac > $dmac, 802.3, length 4:"
check_rcv $h2 "$test_name: Multicast non-IP untagged" \
"$smac > $NON_IP_MC, 802.3, length 4:"
check_rcv $h2 "$test_name: Broadcast non-IP untagged" \
"$smac > $BC, 802.3, length 4:"
check_rcv $h2 "$test_name: Unicast IPv4 untagged" \
"$smac > $dmac, ethertype IPv4 (0x0800)"
check_rcv $h2 "$test_name: Multicast IPv4 untagged" \
"$smac > $MACV4_ALLNODES, ethertype IPv4 (0x0800).*: $H1_IPV4 > $IPV4_ALLNODES"
check_rcv $h2 "$test_name: Unicast IPv6 untagged" \
"$smac > $dmac, ethertype IPv6 (0x86dd).*8: $H1_IPV6 > $H2_IPV6"
check_rcv $h2 "$test_name: Multicast IPv6 untagged" \
"$smac > $MACV6_ALLNODES, ethertype IPv6 (0x86dd).*: $h1_ipv6_lladdr > $IPV6_ALLNODES"
for vid in "${vids[@]}"; do
check_rcv $h2 "$test_name: Unicast non-IP VID $vid" \
"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
check_rcv $h2 "$test_name: Multicast non-IP VID $vid" \
"$smac > $NON_IP_MC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
check_rcv $h2 "$test_name: Broadcast non-IP VID $vid" \
"$smac > $BC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
check_rcv $h2 "$test_name: Unicast IPv4 VID $vid" \
"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $H2_IPV4"
check_rcv $h2 "$test_name: Multicast IPv4 VID $vid" \
"$smac > $MACV4_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $IPV4_ALLNODES"
check_rcv $h2 "$test_name: Unicast IPv6 VID $vid" \
"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $H1_IPV6 > $H2_IPV6"
check_rcv $h2 "$test_name: Multicast IPv6 VID $vid" \
"$smac > $MACV6_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $h1_ipv6_lladdr > $IPV6_ALLNODES"
done
tcpdump_cleanup $h2
}
standalone()
{
run_test "Standalone switch ports"
}
two_bridges()
{
ip link add br0 type bridge && ip link set br0 up
ip link add br1 type bridge && ip link set br1 up
ip link set $swp1 master br0
ip link set $swp2 master br1
run_test "Switch ports in different bridges"
ip link del br1
ip link del br0
}
one_bridge_two_pvids()
{
ip link add br0 type bridge vlan_filtering 1 vlan_default_pvid 0
ip link set br0 up
ip link set $swp1 master br0
ip link set $swp2 master br0
bridge vlan add dev $swp1 vid 1 pvid untagged
bridge vlan add dev $swp1 vid 2 pvid untagged
run_test "Switch ports in VLAN-aware bridge with different PVIDs"
ip link del br0
}
h1_create()
{
simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
}
h1_destroy()
{
simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
}
h2_create()
{
simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
}
h2_destroy()
{
simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
}
cleanup()
{
pre_cleanup
h2_destroy
h1_destroy
vrf_cleanup
}
setup_prepare()
{
vrf_prepare
h1_create
h2_create
# we call simple_if_init from the test itself, but setup_wait expects
# that we call it from here, and waits until the interfaces are up
ip link set dev $swp1 up
ip link set dev $swp2 up
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
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