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// +build ignore
// Copyright 2015-2018 CNI authors
//
// 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 main
import (
"fmt"
"net"
"os"
"os/exec"
"sync"
"time"
"github.com/containernetworking/cni/pkg/skel"
current "github.com/containernetworking/cni/pkg/types/100"
"github.com/containernetworking/plugins/pkg/ns"
"github.com/containernetworking/plugins/pkg/testutils"
"github.com/vishvananda/netlink"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("DHCP Multiple Lease Operations", func() {
var originalNS, targetNS ns.NetNS
var dhcpServerStopCh chan bool
var dhcpServerDone *sync.WaitGroup
var clientCmd *exec.Cmd
var socketPath string
var tmpDir string
var serverIP net.IPNet
var err error
BeforeEach(func() {
dhcpServerStopCh, serverIP, socketPath, originalNS, targetNS, err = dhcpSetupOriginalNS()
Expect(err).NotTo(HaveOccurred())
// Move the container side to the container's NS
err = targetNS.Do(func(_ ns.NetNS) error {
defer GinkgoRecover()
link, err := netlink.LinkByName(contVethName0)
Expect(err).NotTo(HaveOccurred())
err = netlink.LinkSetUp(link)
Expect(err).NotTo(HaveOccurred())
link1, err := netlink.LinkByName(contVethName1)
Expect(err).NotTo(HaveOccurred())
err = netlink.LinkSetUp(link1)
Expect(err).NotTo(HaveOccurred())
return nil
})
// Start the DHCP server
dhcpServerDone, err = dhcpServerStart(originalNS, net.IPv4(192, 168, 1, 5), serverIP.IP, 2, dhcpServerStopCh)
Expect(err).NotTo(HaveOccurred())
// Start the DHCP client daemon
dhcpPluginPath, err := exec.LookPath("dhcp")
Expect(err).NotTo(HaveOccurred())
clientCmd = exec.Command(dhcpPluginPath, "daemon", "-socketpath", socketPath)
err = clientCmd.Start()
Expect(err).NotTo(HaveOccurred())
Expect(clientCmd.Process).NotTo(BeNil())
// Wait up to 15 seconds for the client socket
Eventually(func() bool {
_, err := os.Stat(socketPath)
return err == nil
}, time.Second*15, time.Second/4).Should(BeTrue())
})
AfterEach(func() {
dhcpServerStopCh <- true
dhcpServerDone.Wait()
clientCmd.Process.Kill()
clientCmd.Wait()
Expect(originalNS.Close()).To(Succeed())
Expect(targetNS.Close()).To(Succeed())
defer os.RemoveAll(tmpDir)
})
It("configures multiple links with multiple ADD/DEL", func() {
conf := fmt.Sprintf(`{
"cniVersion": "0.3.1",
"name": "mynet",
"type": "bridge",
"bridge": "%s",
"ipam": {
"type": "dhcp",
"daemonSocketPath": "%s"
}
}`, hostBridgeName, socketPath)
args := &skel.CmdArgs{
ContainerID: "dummy",
Netns: targetNS.Path(),
IfName: contVethName0,
StdinData: []byte(conf),
}
var addResult *current.Result
err := originalNS.Do(func(ns.NetNS) error {
defer GinkgoRecover()
r, _, err := testutils.CmdAddWithArgs(args, func() error {
return cmdAdd(args)
})
Expect(err).NotTo(HaveOccurred())
addResult, err = current.GetResult(r)
Expect(err).NotTo(HaveOccurred())
Expect(len(addResult.IPs)).To(Equal(1))
Expect(addResult.IPs[0].Address.String()).To(Equal("192.168.1.5/24"))
return nil
})
Expect(err).NotTo(HaveOccurred())
args = &skel.CmdArgs{
ContainerID: "dummy",
Netns: targetNS.Path(),
IfName: contVethName1,
StdinData: []byte(conf),
}
err = originalNS.Do(func(ns.NetNS) error {
defer GinkgoRecover()
r, _, err := testutils.CmdAddWithArgs(args, func() error {
return cmdAdd(args)
})
Expect(err).NotTo(HaveOccurred())
addResult, err = current.GetResult(r)
Expect(err).NotTo(HaveOccurred())
Expect(len(addResult.IPs)).To(Equal(1))
Expect(addResult.IPs[0].Address.String()).To(Equal("192.168.1.6/24"))
return nil
})
Expect(err).NotTo(HaveOccurred())
args = &skel.CmdArgs{
ContainerID: "dummy",
Netns: targetNS.Path(),
IfName: contVethName1,
StdinData: []byte(conf),
}
err = originalNS.Do(func(ns.NetNS) error {
return testutils.CmdDelWithArgs(args, func() error {
return cmdDel(args)
})
})
Expect(err).NotTo(HaveOccurred())
args = &skel.CmdArgs{
ContainerID: "dummy",
Netns: targetNS.Path(),
IfName: contVethName0,
StdinData: []byte(conf),
}
err = originalNS.Do(func(ns.NetNS) error {
return testutils.CmdDelWithArgs(args, func() error {
return cmdDel(args)
})
})
Expect(err).NotTo(HaveOccurred())
})
})
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