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/***
Copyright 2014 Cisco Systems Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package drivers
import (
"fmt"
"os/exec"
"strings"
"testing"
"time"
"github.com/contiv/netplugin/core"
"github.com/contiv/netplugin/netmaster/mastercfg"
"github.com/contiv/netplugin/state"
)
const (
createEpID = "testCreateEp"
createEpIDStateful = "testCreateEpStateful"
createEpIDStatefulMismatch = "testCreateEpStatefulMismatch"
deleteEpID = "testDeleteEp"
testOvsNwID = "testNetID"
testOvsNwIDStateful = "testNetIDStateful"
testOvsEpGroupID = "10"
testOvsEpGroupIDStateful = "11"
testOvsEpgHandle = 10
testOvsEpgHandleStateful = 11
testPktTag = 100
testPktTagStateful = 200
testExtPktTag = 10000
testIntfName = "testIntf"
testSubnetIP = "10.1.1.0"
testSubnetLen = 24
testEpAddress = "10.1.1.1"
testEpMacAddress = "02:02:0A:01:01:01"
testHostLabel = "testHost"
testHostLabelStateful = "testHostStateful"
testCurrPortNum = 10
testVlanUplinkPort = "eth2"
)
func createCommonState(stateDriver core.StateDriver) error {
//create all the common config state required by the tests
{
cfgNw := &mastercfg.CfgNetworkState{}
cfgNw.ID = testOvsNwID
cfgNw.PktTag = testPktTag
cfgNw.ExtPktTag = testExtPktTag
cfgNw.SubnetIP = testSubnetIP
cfgNw.SubnetLen = testSubnetLen
cfgNw.StateDriver = stateDriver
if err := cfgNw.Write(); err != nil {
return err
}
}
{
cfgNw := &mastercfg.CfgNetworkState{}
cfgNw.ID = testOvsNwIDStateful
cfgNw.PktTag = testPktTagStateful
cfgNw.ExtPktTag = testExtPktTag
cfgNw.SubnetIP = testSubnetIP
cfgNw.SubnetLen = testSubnetLen
cfgNw.StateDriver = stateDriver
if err := cfgNw.Write(); err != nil {
return err
}
}
{
cfgEpGroup := &mastercfg.EndpointGroupState{}
cfgEpGroup.StateDriver = stateDriver
cfgEpGroup.ID = testOvsEpGroupID
cfgEpGroup.PktTagType = "vlan"
cfgEpGroup.PktTag = testPktTag
if err := cfgEpGroup.Write(); err != nil {
return err
}
}
{
cfgEpGroup := &mastercfg.EndpointGroupState{}
cfgEpGroup.StateDriver = stateDriver
cfgEpGroup.ID = testOvsEpGroupIDStateful
cfgEpGroup.PktTagType = "vlan"
cfgEpGroup.PktTag = testPktTagStateful
if err := cfgEpGroup.Write(); err != nil {
return err
}
}
{
cfgEp := &mastercfg.CfgEndpointState{}
cfgEp.ID = createEpID
cfgEp.EndpointGroupID = testOvsEpgHandle
cfgEp.NetID = testOvsNwID
cfgEp.IntfName = ""
cfgEp.IPAddress = testEpAddress
cfgEp.MacAddress = testEpMacAddress
cfgEp.StateDriver = stateDriver
if err := cfgEp.Write(); err != nil {
return err
}
}
{
cfgEp := &mastercfg.CfgEndpointState{}
cfgEp.ID = createEpIDStateful
cfgEp.EndpointGroupID = testOvsEpgHandleStateful
cfgEp.NetID = testOvsNwID
cfgEp.IntfName = ""
cfgEp.IPAddress = testEpAddress
cfgEp.MacAddress = testEpMacAddress
cfgEp.StateDriver = stateDriver
if err := cfgEp.Write(); err != nil {
return err
}
}
{
cfgEp := &mastercfg.CfgEndpointState{}
cfgEp.ID = createEpIDStatefulMismatch
cfgEp.EndpointGroupID = testOvsEpgHandle
cfgEp.NetID = testOvsNwID
cfgEp.IntfName = ""
cfgEp.IPAddress = testEpAddress
cfgEp.MacAddress = testEpMacAddress
cfgEp.StateDriver = stateDriver
if err := cfgEp.Write(); err != nil {
return err
}
}
{
cfgEp := &mastercfg.CfgEndpointState{}
cfgEp.ID = deleteEpID
cfgEp.EndpointGroupID = testOvsEpgHandle
cfgEp.NetID = testOvsNwID
cfgEp.IPAddress = testEpAddress
cfgEp.MacAddress = testEpMacAddress
cfgEp.StateDriver = stateDriver
if err := cfgEp.Write(); err != nil {
return err
}
}
return nil
}
func initOvsDriver(t *testing.T) *OvsDriver {
driver := &OvsDriver{}
ovsConfig := &OvsDriverConfig{}
ovsConfig.Ovs.DbIP = ""
ovsConfig.Ovs.DbPort = 0
config := &core.Config{V: ovsConfig}
stateDriver := &state.FakeStateDriver{}
stateDriver.Init(nil)
instInfo := &core.InstanceInfo{HostLabel: testHostLabel,
StateDriver: stateDriver}
err := createCommonState(stateDriver)
if err != nil {
t.Fatalf("common state creation failed. Error: %s", err)
}
err = driver.Init(config, instInfo)
if err != nil {
t.Fatalf("driver init failed. Error: %s", err)
}
return driver
}
func TestOvsDriverInit(t *testing.T) {
driver := initOvsDriver(t)
defer func() { driver.Deinit() }()
}
func TestOvsDriverInitStatefulStart(t *testing.T) {
driver := &OvsDriver{}
ovsConfig := &OvsDriverConfig{}
ovsConfig.Ovs.DbIP = ""
ovsConfig.Ovs.DbPort = 0
config := &core.Config{V: ovsConfig}
stateDriver := &state.FakeStateDriver{}
stateDriver.Init(nil)
instInfo := &core.InstanceInfo{HostLabel: testHostLabelStateful,
StateDriver: stateDriver}
operOvs := &OvsDriverOperState{CurrPortNum: 10}
operOvs.StateDriver = stateDriver
operOvs.ID = testHostLabelStateful
err := operOvs.Write()
if err != nil {
t.Fatalf("writing driver oper state failed. Error: %s", err)
}
err = driver.Init(config, instInfo)
if err != nil {
t.Fatalf("driver init failed. Error: %s", err)
}
if driver.oper.CurrPortNum != testCurrPortNum {
t.Fatalf("Unexpected driver oper state. Expected port num: %d, rcvd port number: %d",
testCurrPortNum, driver.oper.CurrPortNum)
}
defer func() { driver.Deinit() }()
}
func TestOvsDriverInitInvalidConfig(t *testing.T) {
driver := &OvsDriver{}
config := &core.Config{V: nil}
stateDriver := &state.FakeStateDriver{}
stateDriver.Init(nil)
instInfo := &core.InstanceInfo{HostLabel: testHostLabel,
StateDriver: stateDriver}
err := driver.Init(config, instInfo)
if err == nil {
t.Fatalf("driver init succeeded. Should have failed!")
}
err = driver.Init(nil, instInfo)
if err == nil {
t.Fatalf("driver init succeeded. Should have failed!")
}
defer func() { driver.Deinit() }()
}
func TestOvsDriverInitInvalidState(t *testing.T) {
driver := &OvsDriver{}
ovsConfig := &OvsDriverConfig{}
ovsConfig.Ovs.DbIP = ""
ovsConfig.Ovs.DbPort = 0
config := &core.Config{V: ovsConfig}
instInfo := &core.InstanceInfo{HostLabel: testHostLabel, StateDriver: nil}
err := driver.Init(config, instInfo)
if err == nil {
t.Fatalf("driver init succeeded. Should have failed!")
}
defer func() { driver.Deinit() }()
}
func TestOvsDriverInitInvalidInstanceInfo(t *testing.T) {
driver := &OvsDriver{}
ovsConfig := &OvsDriverConfig{}
ovsConfig.Ovs.DbIP = ""
ovsConfig.Ovs.DbPort = 0
config := &core.Config{V: ovsConfig}
err := driver.Init(config, nil)
if err == nil {
t.Fatalf("driver init succeeded. Should have failed!")
}
defer func() { driver.Deinit() }()
}
func TestOvsDriverDeinit(t *testing.T) {
driver := initOvsDriver(t)
driver.Deinit()
output, err := exec.Command("ovs-vsctl", "list", "Bridge").CombinedOutput()
if err != nil || strings.Contains(string(output), vlanBridgeName) ||
strings.Contains(string(output), vxlanBridgeName) {
t.Fatalf("deinit failed. Error: %s Output: %s", err, output)
}
}
func TestOvsDriverCreateEndpoint(t *testing.T) {
driver := initOvsDriver(t)
defer func() { driver.Deinit() }()
id := createEpID
err := driver.CreateEndpoint(id)
if err != nil {
t.Fatalf("endpoint creation failed. Error: %s", err)
}
defer func() { driver.DeleteEndpoint(id) }()
output, err := exec.Command("ovs-vsctl", "list", "Port").CombinedOutput()
expectedPortName := fmt.Sprintf("port%d", driver.oper.CurrPortNum)
if err != nil || !strings.Contains(string(output), expectedPortName) {
t.Fatalf("port lookup failed. Error: %s expected port: %s Output: %s",
err, expectedPortName, output)
}
output, err = exec.Command("ovs-vsctl", "list", "Interface").CombinedOutput()
if err != nil || !strings.Contains(string(output), expectedPortName) {
t.Fatalf("interface lookup failed. Error: %s expected port: %s Output: %s",
err, expectedPortName, output)
}
}
func TestOvsDriverCreateEndpointStateful(t *testing.T) {
driver := initOvsDriver(t)
defer func() { driver.Deinit() }()
id := createEpIDStateful
err := driver.CreateEndpoint(id)
if err != nil {
t.Fatalf("endpoint creation failed. Error: %s", err)
}
defer func() { driver.DeleteEndpoint(id) }()
err = driver.CreateEndpoint(id)
if err != nil {
t.Fatalf("stateful endpoint creation failed. Error: %s", err)
}
output, err := exec.Command("ovs-vsctl", "list", "Port").CombinedOutput()
expectedPortName := fmt.Sprintf("port%d", driver.oper.CurrPortNum)
if err != nil || !strings.Contains(string(output), expectedPortName) {
t.Fatalf("port lookup failed. Error: %s expected port: %s Output: %s",
err, expectedPortName, output)
}
output, err = exec.Command("ovs-vsctl", "list", "Interface").CombinedOutput()
if err != nil || !strings.Contains(string(output), expectedPortName) {
t.Fatalf("interface lookup failed. Error: %s expected port: %s Output: %s",
err, expectedPortName, output)
}
}
func TestOvsDriverCreateEndpointStatefulStateMismatch(t *testing.T) {
driver := initOvsDriver(t)
defer func() { driver.Deinit() }()
id := createEpIDStatefulMismatch
err := driver.CreateEndpoint(id)
if err != nil {
t.Fatalf("endpoint creation failed. Error: %s", err)
}
cfgEp := mastercfg.CfgEndpointState{}
cfgEp.StateDriver = driver.oper.StateDriver
err = cfgEp.Read(id)
if err != nil {
t.Fatalf("failed to read ep config. Error: %s", err)
}
cfgEp.NetID = testOvsNwIDStateful
err = cfgEp.Write()
if err != nil {
t.Fatalf("failed to write ep config. Error: %s", err)
}
err = driver.CreateEndpoint(id)
if err != nil {
t.Fatalf("stateful endpoint creation failed. Error: %s", err)
}
defer func() { driver.DeleteEndpoint(id) }()
output, err := exec.Command("ovs-vsctl", "list", "Port").CombinedOutput()
expectedPortName := fmt.Sprintf("port%d", driver.oper.CurrPortNum)
if err != nil || !strings.Contains(string(output), expectedPortName) {
t.Fatalf("port lookup failed. Error: %s expected port: %s Output: %s",
err, expectedPortName, output)
}
output, err = exec.Command("ovs-vsctl", "list", "Interface").CombinedOutput()
if err != nil || !strings.Contains(string(output), expectedPortName) {
t.Fatalf("interface lookup failed. Error: %s expected port: %s Output: %s",
err, expectedPortName, output)
}
}
func TestOvsDriverDeleteEndpoint(t *testing.T) {
driver := initOvsDriver(t)
defer func() { driver.Deinit() }()
id := deleteEpID
err := driver.CreateEndpoint(id)
if err != nil {
t.Fatalf("endpoint Creation failed. Error: %s", err)
}
// XXX: DeleteEndpoint() depends on the ovsdb cache to have been updated
// once the port is created. The cache update happens asynchronously through
// a libovsdb callback. So there is a timing window where cache might not yet
// have been updated. Adding a delay to workaround.
// Also see contiv/netplugin/issues/78
time.Sleep(1 * time.Second)
err = driver.DeleteEndpoint(id)
if err != nil {
t.Fatalf("endpoint Deletion failed. Error: %s", err)
}
output, err := exec.Command("ovs-vsctl", "list", "Port").CombinedOutput()
expectedPortName := fmt.Sprintf(portNameFmt, driver.oper.CurrPortNum+1)
if err != nil || strings.Contains(string(output), expectedPortName) {
t.Fatalf("port lookup succeeded after delete. Error: %s Output: %s", err, output)
}
output, err = exec.Command("ovs-vsctl", "list", "Interface").CombinedOutput()
if err != nil || strings.Contains(string(output), testIntfName) {
t.Fatalf("interface lookup succeeded after delete. Error: %s Output: %s", err, output)
}
}
func TestOvsDriverAddUplink(t *testing.T) {
driver := initOvsDriver(t)
defer func() { driver.Deinit() }()
// Add uplink
err := driver.switchDb["vlan"].AddUplinkPort(testVlanUplinkPort)
if err != nil {
t.Fatalf("Could not add uplink %s to vlan OVS. Err: %v", testVlanUplinkPort, err)
}
time.Sleep(300 * time.Millisecond)
// verify uplink port
output, err := exec.Command("ovs-vsctl", "list", "Interface").CombinedOutput()
if err != nil || !strings.Contains(string(output), testVlanUplinkPort) {
t.Fatalf("interface lookup failed. Error: %s expected port: %s Output: %s",
err, testVlanUplinkPort, output)
}
}