On 7/28/23 13:59, Aaron Conole wrote:
Forwarding via ct() action is an important use case for openvswitch, but generally would require using a full ovs-vswitchd to get working. Add a ct action parser for basic ct test case.
Signed-off-by: Aaron Conole aconole@redhat.com
Reviewed-by: Adrian Moreno amorenoz@redhat.com
NOTE: 3 lines flag the line-length checkpatch warning, but there didnt seem to be a really good way of breaking the lines smaller.
.../selftests/net/openvswitch/openvswitch.sh | 68 +++++++++++++++++++ .../selftests/net/openvswitch/ovs-dpctl.py | 39 +++++++++++ 2 files changed, 107 insertions(+)
diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index 5d60a9466dab..40a66c72af0f 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -12,6 +12,7 @@ TRACING=0 tests=" arp_ping eth-arp: Basic arp ping between two NS
- ct_connect_v4 ip4-ct-xon: Basic ipv4 tcp connection using ct connect_v4 ip4-xon: Basic ipv4 ping between two NS netlink_checks ovsnl: validate netlink attrs and settings upcall_interfaces ovs: test the upcall interfaces"
@@ -193,6 +194,73 @@ test_arp_ping () { return 0 } +# ct_connect_v4 test +# - client has 1500 byte MTU +# - server has 1500 byte MTU +# - use ICMP to ping in each direction +# - only allow CT state stuff to pass through new in c -> s +test_ct_connect_v4 () {
- which nc >/dev/null 2>/dev/null || return $ksft_skip
- sbx_add "test_ct_connect_v4" || return $?
- ovs_add_dp "test_ct_connect_v4" ct4 || return 1
- info "create namespaces"
- for ns in client server; do
ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \"${ns:0:1}0" "${ns:0:1}1" || return 1- done
- ip netns exec client ip addr add 172.31.110.10/24 dev c1
- ip netns exec client ip link set c1 up
- ip netns exec server ip addr add 172.31.110.20/24 dev s1
- ip netns exec server ip link set s1 up
- # Add forwarding for ARP and ip packets - completely wildcarded
- ovs_add_flow "test_ct_connect_v4" ct4 \
'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1- ovs_add_flow "test_ct_connect_v4" ct4 \
'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1- ovs_add_flow "test_ct_connect_v4" ct4 \
'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \'ct(commit),recirc(0x1)' || return 1- ovs_add_flow "test_ct_connect_v4" ct4 \
'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \'2' || return 1- ovs_add_flow "test_ct_connect_v4" ct4 \
'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \'2' || return 1- ovs_add_flow "test_ct_connect_v4" ct4 \
'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \'1' || return 1- ovs_add_flow "test_ct_connect_v4" ct4 \
'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \return 1- # do a ping
- ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1
- # create an echo server in 'server'
- echo "server" | \
ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \nc -lvnp 4443- ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1
- # Now test in the other direction (should fail)
- echo "client" | \
ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \nc -lvnp 4443- ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443
- if [ $? == 0 ]; then
info "ct connect to client was successful"return 1- fi
- info "done..."
- return 0
+}
- # connect_v4 test # - client has 1500 byte MTU # - server has 1500 byte MTU
diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index 2b869e89c51d..6e258ab9e635 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -62,6 +62,15 @@ def macstr(mac): return outstr +def strcspn(str1, str2):
- tot = 0
- for char in str1:
if str2.find(char) != -1:return tottot += 1- return tot
- def strspn(str1, str2): tot = 0 for char in str1:
@@ -496,6 +505,36 @@ class ovsactions(nla): actstr = actstr[strspn(actstr, ", ") :] parsed = True
if parse_starts_block(actstr, "ct(", False):actstr = actstr[len("ct(") :]ctact = ovsactions.ctact()for scan in (("commit", "OVS_CT_ATTR_COMMIT", None),("force_commit", "OVS_CT_ATTR_FORCE_COMMIT", None),("zone", "OVS_CT_ATTR_ZONE", int),("mark", "OVS_CT_ATTR_MARK", int),("helper", "OVS_CT_ATTR_HELPER", lambda x, y: str(x)),("timeout", "OVS_CT_ATTR_TIMEOUT", lambda x, y: str(x)),):if actstr.startswith(scan[0]):actstr = actstr[len(scan[0]) :]if scan[2] is not None:if actstr[0] != "=":raise ValueError("Invalid ct attr")actstr = actstr[1:]pos = strcspn(actstr, ",)")datum = scan[2](actstr[:pos], 0)ctact["attrs"].append([scan[1], datum])actstr = actstr[pos:]else:ctact["attrs"].append([scan[1], None])actstr = actstr[strspn(actstr, ", ") :]self["attrs"].append(["OVS_ACTION_ATTR_CT", ctact])parsed = Trueactstr = actstr[strspn(actstr, "), ") :] if not parsed: raise ValueError("Action str: '%s' not supported" % actstr)