Commit 3edf5f66 authored by Roopa Prabhu's avatar Roopa Prabhu Committed by David S. Miller

selftests: add new tests for vxlan vnifiltering

This patch adds a new test script test_vxlan_vnifiltering.sh
with tests for vni filtering api, various datapath tests.
Also has a test with a mix of traditional, metadata and vni
filtering devices inuse at the same time.
Signed-off-by: default avatarRoopa Prabhu <roopa@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f9c4bb0b
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This test is for checking the VXLAN vni filtering api and
# datapath.
# It simulates two hypervisors running two VMs each using four network
# six namespaces: two for the HVs, four for the VMs. Each VM is
# connected to a separate bridge. The VM's use overlapping vlans and
# hence the separate bridge domain. Each vxlan device is a collect
# metadata device with vni filtering and hence has the ability to
# terminate configured vni's only.
# +--------------------------------+ +------------------------------------+
# | vm-11 netns | | vm-21 netns |
# | | | |
# |+------------+ +-------------+ | |+-------------+ +----------------+ |
# ||veth-11.10 | |veth-11.20 | | ||veth-21.10 | | veth-21.20 | |
# ||10.0.10.11/24 |10.0.20.11/24| | ||10.0.10.21/24| | 10.0.20.21/24 | |
# |+------|-----+ +|------------+ | |+-----------|-+ +---|------------+ |
# | | | | | | | |
# | | | | | +------------+ |
# | +------------+ | | | veth-21 | |
# | | veth-11 | | | | | |
# | | | | | +-----|------+ |
# | +-----|------+ | | | |
# | | | | | |
# +------------|-------------------+ +---------------|--------------------+
# +------------|-----------------------------------------|-------------------+
# | +-----|------+ +-----|------+ |
# | |vethhv-11 | |vethhv-21 | |
# | +----|-------+ +-----|------+ |
# | +---|---+ +---|--+ |
# | | br1 | | br2 | |
# | +---|---+ +---|--+ |
# | +---|----+ +---|--+ |
# | | vxlan1| |vxlan2| |
# | +--|-----+ +--|---+ |
# | | | |
# | | +---------------------+ | |
# | | |veth0 | | |
# | +---------|172.16.0.1/24 -----------+ |
# | |2002:fee1::1/64 | |
# | hv-1 netns +--------|------------+ |
# +-----------------------------|--------------------------------------------+
# |
# +-----------------------------|--------------------------------------------+
# | hv-2 netns +--------|-------------+ |
# | | veth0 | |
# | +------| 172.16.0.2/24 |---+ |
# | | | 2002:fee1::2/64 | | |
# | | | | | |
# | | +----------------------+ | - |
# | | | |
# | +-|-------+ +--------|-+ |
# | | vxlan1 | | vxlan2 | |
# | +----|----+ +---|------+ |
# | +--|--+ +-|---+ |
# | | br1 | | br2 | |
# | +--|--+ +--|--+ |
# | +-----|-------+ +----|-------+ |
# | | vethhv-12 | |vethhv-22 | |
# | +------|------+ +-------|----+ |
# +-----------------|----------------------------|---------------------------+
# | |
# +-----------------|-----------------+ +--------|---------------------------+
# | +-------|---+ | | +--|---------+ |
# | | veth-12 | | | |veth-22 | |
# | +-|--------|+ | | +--|--------|+ |
# | | | | | | | |
# |+----------|--+ +---|-----------+ | |+-------|-----+ +|---------------+ |
# ||veth-12.10 | |veth-12.20 | | ||veth-22.10 | |veth-22.20 | |
# ||10.0.10.12/24| |10.0.20.12/24 | | ||10.0.10.22/24| |10.0.20.22/24 | |
# |+-------------+ +---------------+ | |+-------------+ +----------------+ |
# | | | |
# | | | |
# | vm-12 netns | |vm-22 netns |
# +-----------------------------------+ +------------------------------------+
#
#
# This test tests the new vxlan vnifiltering api
ret=0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
# all tests in this script. Can be overridden with -t option
TESTS="
vxlan_vnifilter_api
vxlan_vnifilter_datapath
vxlan_vnifilter_datapath_pervni
vxlan_vnifilter_datapath_mgroup
vxlan_vnifilter_datapath_mgroup_pervni
vxlan_vnifilter_metadata_and_traditional_mix
"
VERBOSE=0
PAUSE_ON_FAIL=no
PAUSE=no
which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
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
[ "$a" = "q" ] && exit 1
fi
fi
if [ "${PAUSE}" = "yes" ]; then
echo
echo "hit enter to continue, 'q' to quit"
read a
[ "$a" = "q" ] && exit 1
fi
}
run_cmd()
{
local cmd="$1"
local out
local stderr="2>/dev/null"
if [ "$VERBOSE" = "1" ]; then
printf "COMMAND: $cmd\n"
stderr=
fi
out=$(eval $cmd $stderr)
rc=$?
if [ "$VERBOSE" = "1" -a -n "$out" ]; then
echo " $out"
fi
return $rc
}
check_hv_connectivity() {
ip netns exec hv-1 ping -c 1 -W 1 $1 &>/dev/null
sleep 1
ip netns exec hv-1 ping -c 1 -W 1 $2 &>/dev/null
return $?
}
check_vm_connectivity() {
run_cmd "ip netns exec vm-11 ping -c 1 -W 1 10.0.10.12"
log_test $? 0 "VM connectivity over $1 (ipv4 default rdst)"
run_cmd "ip netns exec vm-21 ping -c 1 -W 1 10.0.10.22"
log_test $? 0 "VM connectivity over $1 (ipv6 default rdst)"
}
cleanup() {
ip link del veth-hv-1 2>/dev/null || true
ip link del vethhv-11 vethhv-12 vethhv-21 vethhv-22 2>/dev/null || true
for ns in hv-1 hv-2 vm-11 vm-21 vm-12 vm-22 vm-31 vm-32; do
ip netns del $ns 2>/dev/null || true
done
}
trap cleanup EXIT
setup-hv-networking() {
hv=$1
local1=$2
mask1=$3
local2=$4
mask2=$5
ip netns add hv-$hv
ip link set veth-hv-$hv netns hv-$hv
ip -netns hv-$hv link set veth-hv-$hv name veth0
ip -netns hv-$hv addr add $local1/$mask1 dev veth0
ip -netns hv-$hv addr add $local2/$mask2 dev veth0
ip -netns hv-$hv link set veth0 up
}
# Setups a "VM" simulated by a netns an a veth pair
# example: setup-vm <hvid> <vmid> <brid> <VATTRS> <mcast_for_bum>
# VATTRS = comma separated "<vlan>-<v[46]>-<localip>-<remoteip>-<VTYPE>-<vxlandstport>"
# VTYPE = vxlan device type. "default = traditional device, metadata = metadata device
# vnifilter = vnifiltering device,
# vnifilterg = vnifiltering device with per vni group/remote"
# example:
# setup-vm 1 11 1 \
# 10-v4-172.16.0.1-239.1.1.100-vnifilterg,20-v4-172.16.0.1-239.1.1.100-vnifilterg 1
#
setup-vm() {
hvid=$1
vmid=$2
brid=$3
vattrs=$4
mcast=$5
lastvxlandev=""
# create bridge
ip -netns hv-$hvid link add br$brid type bridge vlan_filtering 1 vlan_default_pvid 0 \
mcast_snooping 0
ip -netns hv-$hvid link set br$brid up
# create vm namespace and interfaces and connect to hypervisor
# namespace
ip netns add vm-$vmid
hvvethif="vethhv-$vmid"
vmvethif="veth-$vmid"
ip link add $hvvethif type veth peer name $vmvethif
ip link set $hvvethif netns hv-$hvid
ip link set $vmvethif netns vm-$vmid
ip -netns hv-$hvid link set $hvvethif up
ip -netns vm-$vmid link set $vmvethif up
ip -netns hv-$hvid link set $hvvethif master br$brid
# configure VM vlan/vni filtering on hypervisor
for vmap in $(echo $vattrs | cut -d "," -f1- --output-delimiter=' ')
do
local vid=$(echo $vmap | awk -F'-' '{print ($1)}')
local family=$(echo $vmap | awk -F'-' '{print ($2)}')
local localip=$(echo $vmap | awk -F'-' '{print ($3)}')
local group=$(echo $vmap | awk -F'-' '{print ($4)}')
local vtype=$(echo $vmap | awk -F'-' '{print ($5)}')
local port=$(echo $vmap | awk -F'-' '{print ($6)}')
ip -netns vm-$vmid link add name $vmvethif.$vid link $vmvethif type vlan id $vid
ip -netns vm-$vmid addr add 10.0.$vid.$vmid/24 dev $vmvethif.$vid
ip -netns vm-$vmid link set $vmvethif.$vid up
tid=$vid
vxlandev="vxlan$brid"
vxlandevflags=""
if [[ -n $vtype && $vtype == "metadata" ]]; then
vxlandevflags="$vxlandevflags external"
elif [[ -n $vtype && $vtype == "vnifilter" || $vtype == "vnifilterg" ]]; then
vxlandevflags="$vxlandevflags external vnifilter"
tid=$((vid+brid))
else
vxlandevflags="$vxlandevflags id $tid"
vxlandev="vxlan$tid"
fi
if [[ -n $vtype && $vtype != "vnifilterg" ]]; then
if [[ -n "$group" && "$group" != "null" ]]; then
if [ $mcast -eq 1 ]; then
vxlandevflags="$vxlandevflags group $group"
else
vxlandevflags="$vxlandevflags remote $group"
fi
fi
fi
if [[ -n "$port" && "$port" != "default" ]]; then
vxlandevflags="$vxlandevflags dstport $port"
fi
# create vxlan device
if [ "$vxlandev" != "$lastvxlandev" ]; then
ip -netns hv-$hvid link add $vxlandev type vxlan local $localip $vxlandevflags dev veth0 2>/dev/null
ip -netns hv-$hvid link set $vxlandev master br$brid
ip -netns hv-$hvid link set $vxlandev up
lastvxlandev=$vxlandev
fi
# add vlan
bridge -netns hv-$hvid vlan add vid $vid dev $hvvethif
bridge -netns hv-$hvid vlan add vid $vid pvid dev $vxlandev
# Add bridge vni filter for tx
if [[ -n $vtype && $vtype == "metadata" || $vtype == "vnifilter" || $vtype == "vnifilterg" ]]; then
bridge -netns hv-$hvid link set dev $vxlandev vlan_tunnel on
bridge -netns hv-$hvid vlan add dev $vxlandev vid $vid tunnel_info id $tid
fi
if [[ -n $vtype && $vtype == "metadata" ]]; then
bridge -netns hv-$hvid fdb add 00:00:00:00:00:00 dev $vxlandev \
src_vni $tid vni $tid dst $group self
elif [[ -n $vtype && $vtype == "vnifilter" ]]; then
# Add per vni rx filter with 'bridge vni' api
bridge -netns hv-$hvid vni add dev $vxlandev vni $tid
elif [[ -n $vtype && $vtype == "vnifilterg" ]]; then
# Add per vni group config with 'bridge vni' api
if [ -n "$group" ]; then
if [ "$family" == "v4" ]; then
if [ $mcast -eq 1 ]; then
bridge -netns hv-$hvid vni add dev $vxlandev vni $tid group $group
else
bridge -netns hv-$hvid vni add dev $vxlandev vni $tid remote $group
fi
else
if [ $mcast -eq 1 ]; then
bridge -netns hv-$hvid vni add dev $vxlandev vni $tid group6 $group
else
bridge -netns hv-$hvid vni add dev $vxlandev vni $tid remote6 $group
fi
fi
fi
fi
done
}
setup_vnifilter_api()
{
ip link add veth-host type veth peer name veth-testns
ip netns add testns
ip link set veth-testns netns testns
}
cleanup_vnifilter_api()
{
ip link del veth-host 2>/dev/null || true
ip netns del testns 2>/dev/null || true
}
# tests vxlan filtering api
vxlan_vnifilter_api()
{
hv1addr1="172.16.0.1"
hv2addr1="172.16.0.2"
hv1addr2="2002:fee1::1"
hv2addr2="2002:fee1::2"
localip="172.16.0.1"
group="239.1.1.101"
cleanup_vnifilter_api &>/dev/null
setup_vnifilter_api
# Duplicate vni test
# create non-vnifiltering traditional vni device
run_cmd "ip -netns testns link add vxlan100 type vxlan id 100 local $localip dev veth-testns dstport 4789"
log_test $? 0 "Create traditional vxlan device"
# create vni filtering device
run_cmd "ip -netns testns link add vxlan-ext1 type vxlan vnifilter local $localip dev veth-testns dstport 4789"
log_test $? 1 "Cannot create vnifilter device without external flag"
run_cmd "ip -netns testns link add vxlan-ext1 type vxlan external vnifilter local $localip dev veth-testns dstport 4789"
log_test $? 0 "Creating external vxlan device with vnifilter flag"
run_cmd "bridge -netns testns vni add dev vxlan-ext1 vni 100"
log_test $? 0 "Cannot set in-use vni id on vnifiltering device"
run_cmd "bridge -netns testns vni add dev vxlan-ext1 vni 200"
log_test $? 0 "Set new vni id on vnifiltering device"
run_cmd "ip -netns testns link add vxlan-ext2 type vxlan external vnifilter local $localip dev veth-testns dstport 4789"
log_test $? 0 "Create second external vxlan device with vnifilter flag"
run_cmd "bridge -netns testns vni add dev vxlan-ext2 vni 200"
log_test $? 255 "Cannot set in-use vni id on vnifiltering device"
run_cmd "bridge -netns testns vni add dev vxlan-ext2 vni 300"
log_test $? 0 "Set new vni id on vnifiltering device"
# check in bridge vni show
run_cmd "bridge -netns testns vni add dev vxlan-ext2 vni 300"
log_test $? 0 "Update vni id on vnifiltering device"
run_cmd "bridge -netns testns vni add dev vxlan-ext2 vni 400"
log_test $? 0 "Add new vni id on vnifiltering device"
# add multicast group per vni
run_cmd "bridge -netns testns vni add dev vxlan-ext1 vni 200 group $group"
log_test $? 0 "Set multicast group on existing vni"
# add multicast group per vni
run_cmd "bridge -netns testns vni add dev vxlan-ext2 vni 300 group $group"
log_test $? 0 "Set multicast group on existing vni"
# set vnifilter on an existing external vxlan device
run_cmd "ip -netns testns link set dev vxlan-ext1 type vxlan external vnifilter"
log_test $? 2 "Cannot set vnifilter flag on a device"
# change vxlan vnifilter flag
run_cmd "ip -netns testns link set dev vxlan-ext1 type vxlan external novnifilter"
log_test $? 2 "Cannot unset vnifilter flag on a device"
}
# Sanity test vnifilter datapath
# vnifilter vnis inherit BUM group from
# vxlan device
vxlan_vnifilter_datapath()
{
hv1addr1="172.16.0.1"
hv2addr1="172.16.0.2"
hv1addr2="2002:fee1::1"
hv2addr2="2002:fee1::2"
ip link add veth-hv-1 type veth peer name veth-hv-2
setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64 $hv2addr1 $hv2addr2
setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64 $hv1addr1 $hv1addr2
check_hv_connectivity hv2addr1 hv2addr2
setup-vm 1 11 1 10-v4-$hv1addr1-$hv2addr1-vnifilter,20-v4-$hv1addr1-$hv2addr1-vnifilter 0
setup-vm 1 21 2 10-v6-$hv1addr2-$hv2addr2-vnifilter,20-v6-$hv1addr2-$hv2addr2-vnifilter 0
setup-vm 2 12 1 10-v4-$hv2addr1-$hv1addr1-vnifilter,20-v4-$hv2addr1-$hv1addr1-vnifilter 0
setup-vm 2 22 2 10-v6-$hv2addr2-$hv1addr2-vnifilter,20-v6-$hv2addr2-$hv1addr2-vnifilter 0
check_vm_connectivity "vnifiltering vxlan"
}
# Sanity test vnifilter datapath
# with vnifilter per vni configured BUM
# group/remote
vxlan_vnifilter_datapath_pervni()
{
hv1addr1="172.16.0.1"
hv2addr1="172.16.0.2"
hv1addr2="2002:fee1::1"
hv2addr2="2002:fee1::2"
ip link add veth-hv-1 type veth peer name veth-hv-2
setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
check_hv_connectivity hv2addr1 hv2addr2
setup-vm 1 11 1 10-v4-$hv1addr1-$hv2addr1-vnifilterg,20-v4-$hv1addr1-$hv2addr1-vnifilterg 0
setup-vm 1 21 2 10-v6-$hv1addr2-$hv2addr2-vnifilterg,20-v6-$hv1addr2-$hv2addr2-vnifilterg 0
setup-vm 2 12 1 10-v4-$hv2addr1-$hv1addr1-vnifilterg,20-v4-$hv2addr1-$hv1addr1-vnifilterg 0
setup-vm 2 22 2 10-v6-$hv2addr2-$hv1addr2-vnifilterg,20-v6-$hv2addr2-$hv1addr2-vnifilterg 0
check_vm_connectivity "vnifiltering vxlan pervni remote"
}
vxlan_vnifilter_datapath_mgroup()
{
hv1addr1="172.16.0.1"
hv2addr1="172.16.0.2"
hv1addr2="2002:fee1::1"
hv2addr2="2002:fee1::2"
group="239.1.1.100"
group6="ff07::1"
ip link add veth-hv-1 type veth peer name veth-hv-2
setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
check_hv_connectivity hv2addr1 hv2addr2
setup-vm 1 11 1 10-v4-$hv1addr1-$group-vnifilter,20-v4-$hv1addr1-$group-vnifilter 1
setup-vm 1 21 2 "10-v6-$hv1addr2-$group6-vnifilter,20-v6-$hv1addr2-$group6-vnifilter" 1
setup-vm 2 12 1 10-v4-$hv2addr1-$group-vnifilter,20-v4-$hv2addr1-$group-vnifilter 1
setup-vm 2 22 2 10-v6-$hv2addr2-$group6-vnifilter,20-v6-$hv2addr2-$group6-vnifilter 1
check_vm_connectivity "vnifiltering vxlan mgroup"
}
vxlan_vnifilter_datapath_mgroup_pervni()
{
hv1addr1="172.16.0.1"
hv2addr1="172.16.0.2"
hv1addr2="2002:fee1::1"
hv2addr2="2002:fee1::2"
group="239.1.1.100"
group6="ff07::1"
ip link add veth-hv-1 type veth peer name veth-hv-2
setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
check_hv_connectivity hv2addr1 hv2addr2
setup-vm 1 11 1 10-v4-$hv1addr1-$group-vnifilterg,20-v4-$hv1addr1-$group-vnifilterg 1
setup-vm 1 21 2 10-v6-$hv1addr2-$group6-vnifilterg,20-v6-$hv1addr2-$group6-vnifilterg 1
setup-vm 2 12 1 10-v4-$hv2addr1-$group-vnifilterg,20-v4-$hv2addr1-$group-vnifilterg 1
setup-vm 2 22 2 10-v6-$hv2addr2-$group6-vnifilterg,20-v6-$hv2addr2-$group6-vnifilterg 1
check_vm_connectivity "vnifiltering vxlan pervni mgroup"
}
vxlan_vnifilter_metadata_and_traditional_mix()
{
hv1addr1="172.16.0.1"
hv2addr1="172.16.0.2"
hv1addr2="2002:fee1::1"
hv2addr2="2002:fee1::2"
ip link add veth-hv-1 type veth peer name veth-hv-2
setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
check_hv_connectivity hv2addr1 hv2addr2
setup-vm 1 11 1 10-v4-$hv1addr1-$hv2addr1-vnifilter,20-v4-$hv1addr1-$hv2addr1-vnifilter 0
setup-vm 1 21 2 10-v6-$hv1addr2-$hv2addr2-vnifilter,20-v6-$hv1addr2-$hv2addr2-vnifilter 0
setup-vm 1 31 3 30-v4-$hv1addr1-$hv2addr1-default-4790,40-v6-$hv1addr2-$hv2addr2-default-4790,50-v4-$hv1addr1-$hv2addr1-metadata-4791 0
setup-vm 2 12 1 10-v4-$hv2addr1-$hv1addr1-vnifilter,20-v4-$hv2addr1-$hv1addr1-vnifilter 0
setup-vm 2 22 2 10-v6-$hv2addr2-$hv1addr2-vnifilter,20-v6-$hv2addr2-$hv1addr2-vnifilter 0
setup-vm 2 32 3 30-v4-$hv2addr1-$hv1addr1-default-4790,40-v6-$hv2addr2-$hv1addr2-default-4790,50-v4-$hv2addr1-$hv1addr1-metadata-4791 0
check_vm_connectivity "vnifiltering vxlan pervni remote mix"
# check VM connectivity over traditional/non-vxlan filtering vxlan devices
run_cmd "ip netns exec vm-31 ping -c 1 -W 1 10.0.30.32"
log_test $? 0 "VM connectivity over traditional vxlan (ipv4 default rdst)"
run_cmd "ip netns exec vm-31 ping -c 1 -W 1 10.0.40.32"
log_test $? 0 "VM connectivity over traditional vxlan (ipv6 default rdst)"
run_cmd "ip netns exec vm-31 ping -c 1 -W 1 10.0.50.32"
log_test $? 0 "VM connectivity over metadata nonfiltering vxlan (ipv4 default rdst)"
}
while getopts :t:pP46hv o
do
case $o in
t) TESTS=$OPTARG;;
p) PAUSE_ON_FAIL=yes;;
P) PAUSE=yes;;
v) VERBOSE=$(($VERBOSE + 1));;
h) usage; exit 0;;
*) usage; exit 1;;
esac
done
# make sure we don't pause twice
[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
if [ "$(id -u)" -ne 0 ];then
echo "SKIP: Need root privileges"
exit $ksft_skip;
fi
if [ ! -x "$(command -v ip)" ]; then
echo "SKIP: Could not run test without ip tool"
exit $ksft_skip
fi
ip link help vxlan 2>&1 | grep -q "vnifilter"
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing vxlan dev vnifilter setting"
sync
exit $ksft_skip
fi
bridge vni help 2>&1 | grep -q "Usage: bridge vni"
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 bridge lacks vxlan vnifiltering support"
exit $ksft_skip
fi
# start clean
cleanup &> /dev/null
for t in $TESTS
do
case $t in
none) setup; exit 0;;
*) $t; cleanup;;
esac
done
if [ "$TESTS" != "none" ]; then
printf "\nTests passed: %3d\n" ${nsuccess}
printf "Tests failed: %3d\n" ${nfail}
fi
exit $ret
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