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selftests: openvswitch: add an initial flow programming case

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The openvswitch self-tests can test much of the control side of
the module (ie: what a vswitchd implementation would process),
but the actual packet forwarding cases aren't supported, making
the testing of limited value.

Add some flow parsing and an initial ARP based test case using
arping utility.  This lets us display flows, add some basic
output flows with simple matches, and test against a known good
forwarding case.

Signed-off-by: Aaron Conole <aconole@redhat.com>
Reviewed-by: Adrian Moreno <amorenoz@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Aaron Conole
2023-08-01 17:22:22 -04:00
committed by Paolo Abeni
parent ce650a1663
commit 918423fda9
2 changed files with 458 additions and 0 deletions
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51
tools/testing/selftests/net/openvswitch/openvswitch.sh
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@@ -11,6 +11,7 @@ VERBOSE=0
TRACING=0
tests="
arp_ping eth-arp: Basic arp ping between two NS
netlink_checks ovsnl: validate netlink attrs and settings
upcall_interfaces ovs: test the upcall interfaces"
@@ -127,6 +128,16 @@ ovs_add_netns_and_veths () {
return 0
}
ovs_add_flow () {
info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4"
ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4"
if [ $? -ne 0 ]; then
echo "Flow [ $3 : $4 ] failed" >> ${ovs_dir}/debug.log
return 1
fi
return 0
}
usage() {
echo
echo "$0 [OPTIONS] [TEST]..."
@@ -141,6 +152,46 @@ usage() {
exit 1
}
# arp_ping test
# - client has 1500 byte MTU
# - server has 1500 byte MTU
# - send ARP ping between two ns
test_arp_ping () {
which arping >/dev/null 2>&1 || return $ksft_skip
sbx_add "test_arp_ping" || return $?
ovs_add_dp "test_arp_ping" arpping || return 1
info "create namespaces"
for ns in client server; do
ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \
"${ns:0:1}0" "${ns:0:1}1" || return 1
done
# Setup client namespace
ip netns exec client ip addr add 172.31.110.10/24 dev c1
ip netns exec client ip link set c1 up
HW_CLIENT=`ip netns exec client ip link show dev c1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'`
info "Client hwaddr: $HW_CLIENT"
# Setup server namespace
ip netns exec server ip addr add 172.31.110.20/24 dev s1
ip netns exec server ip link set s1 up
HW_SERVER=`ip netns exec server ip link show dev s1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'`
info "Server hwaddr: $HW_SERVER"
ovs_add_flow "test_arp_ping" arpping \
"in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1
ovs_add_flow "test_arp_ping" arpping \
"in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1
ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1
return 0
}
# netlink_validation
# - Create a dp
# - check no warning with "old version" simulation