Example #1
0
func TestSFlowProbePathOvsInternalNetNS(t *testing.T) {
	hostname, err := os.Hostname()
	if err != nil {
		t.Fatal(err.Error())
	}

	ts := NewTestStorage()

	aa := helper.NewAgentAnalyzerWithConfig(t, confAgentAnalyzer, ts)
	aa.Start()
	defer aa.Stop()

	client := api.NewCrudClientFromConfig(&http.AuthenticationOpts{})
	capture := &api.Capture{ProbePath: "*/br-sflow[Type=ovsbridge]"}
	if err := client.Create("capture", &capture); err != nil {
		t.Fatal(err.Error())
	}

	time.Sleep(1 * time.Second)
	setupCmds := []helper.Cmd{
		{"ovs-vsctl add-br br-sflow", true},
		{"ovs-vsctl add-port br-sflow sflow-intf1 -- set interface sflow-intf1 type=internal", true},
		{"ip netns add sflow-vm1", true},
		{"ip link set sflow-intf1 netns sflow-vm1", true},
		{"ip netns exec sflow-vm1 ip address add 169.254.33.33/24 dev sflow-intf1", true},
		{"ip netns exec sflow-vm1 ip link set sflow-intf1 up", true},
		{"ip netns exec sflow-vm1 ping -c 15 -I sflow-intf1 169.254.33.34", false},
	}

	tearDownCmds := []helper.Cmd{
		{"ip netns del sflow-vm1", true},
		{"ovs-vsctl del-br br-sflow", true},
	}

	helper.ExecCmds(t, setupCmds...)
	defer helper.ExecCmds(t, tearDownCmds...)

	aa.Flush()

	ok := false
	for _, f := range ts.GetFlows() {
		if f.ProbeGraphPath == hostname+"[Type=host]/br-sflow[Type=ovsbridge]" && f.LayersPath == "Ethernet/ARP/Payload" {
			ok = true
			break
		}
	}

	if !ok {
		t.Error("Unable to find a flow with the expected probePath")
	}

	client.Delete("capture", "*/br-sflow[Type=ovsbridge]")
}
Example #2
0
func TestPCAPProbe(t *testing.T) {
	hostname, err := os.Hostname()
	if err != nil {
		t.Fatal(err.Error())
	}

	ts := NewTestStorage()

	aa := helper.NewAgentAnalyzerWithConfig(t, confAgentAnalyzer, ts)
	aa.Start()
	defer aa.Stop()

	client := api.NewCrudClientFromConfig(&http.AuthenticationOpts{})
	capture := &api.Capture{ProbePath: "*/br-pcap[Type=bridge]"}
	if err := client.Create("capture", &capture); err != nil {
		t.Fatal(err.Error())
	}
	time.Sleep(1 * time.Second)

	setupCmds := []helper.Cmd{
		{"brctl addbr br-pcap", true},
		{"ip link set br-pcap up", true},
		{"ip address add 169.254.66.66/24 dev br-pcap", true},
		{"ping -c 3 169.254.66.66", false},
	}

	tearDownCmds := []helper.Cmd{
		{"ip link set br-pcap down", true},
		{"brctl delbr br-pcap", true},
	}

	helper.ExecCmds(t, setupCmds...)
	defer helper.ExecCmds(t, tearDownCmds...)

	aa.Flush()

	ok := false
	flows := ts.GetFlows()
	for _, f := range flows {
		if f.ProbeGraphPath == hostname+"[Type=host]/br-pcap[Type=bridge]" {
			ok = true
			break
		}
	}

	if !ok {
		t.Error("Unable to find a flow with the expected probePath")
	}

	client.Delete("capture", "*/br-pcap[Type=bridge]")
}
Example #3
0
func TestSFlowWithPCAP(t *testing.T) {
	ts := NewTestStorage()

	aa := helper.NewAgentAnalyzerWithConfig(t, confAgentAnalyzer, ts)
	aa.Start()
	defer aa.Stop()

	client := api.NewCrudClientFromConfig(&http.AuthenticationOpts{})
	capture := &api.Capture{ProbePath: "*/br-sflow[Type=ovsbridge]"}
	if err := client.Create("capture", &capture); err != nil {
		t.Fatal(err.Error())
	}

	time.Sleep(1 * time.Second)
	setupCmds := []helper.Cmd{
		{"ovs-vsctl add-br br-sflow", true},
	}

	tearDownCmds := []helper.Cmd{
		{"ovs-vsctl del-br br-sflow", true},
	}

	helper.ExecCmds(t, setupCmds...)
	defer helper.ExecCmds(t, tearDownCmds...)

	time.Sleep(5 * time.Second)

	// FIX(safchain): need to be reworked as there is no more static sflow agent
	// running at a specific port and agent couldn't speak sflow at all
	for _, trace := range flowsTraces {
		fulltrace, _ := filepath.Abs(trace.filename)
		err := tools.PCAP2SFlowReplay("localhost", 55000, fulltrace, 1000, 5)
		if err != nil {
			t.Fatalf("Error during the replay: %s", err.Error())
		}

		aa.Flush()
		pcapTraceValidate(t, ts.GetFlows(), &trace)
	}

	client.Delete("capture", "*/br-sflow[Type=ovsbridge]")
}
Example #4
0
func TestSFlowSrcDstPath(t *testing.T) {
	hostname, err := os.Hostname()
	if err != nil {
		t.Fatal(err.Error())
	}

	ts := NewTestStorage()

	aa := helper.NewAgentAnalyzerWithConfig(t, confAgentAnalyzer, ts)
	aa.Start()
	defer aa.Stop()

	client := api.NewCrudClientFromConfig(&http.AuthenticationOpts{})
	capture := &api.Capture{ProbePath: "*/br-sflow[Type=ovsbridge]"}
	if err := client.Create("capture", &capture); err != nil {
		t.Fatal(err.Error())
	}

	time.Sleep(1 * time.Second)
	setupCmds := []helper.Cmd{
		{"ovs-vsctl add-br br-sflow", true},

		{"ovs-vsctl add-port br-sflow sflow-intf1 -- set interface sflow-intf1 type=internal", true},
		{"ip netns add sflow-vm1", true},
		{"ip link set sflow-intf1 netns sflow-vm1", true},
		{"ip netns exec sflow-vm1 ip address add 169.254.33.33/24 dev sflow-intf1", true},
		{"ip netns exec sflow-vm1 ip link set sflow-intf1 up", true},

		{"ovs-vsctl add-port br-sflow sflow-intf2 -- set interface sflow-intf2 type=internal", true},
		{"ip netns add sflow-vm2", true},
		{"ip link set sflow-intf2 netns sflow-vm2", true},
		{"ip netns exec sflow-vm2 ip address add 169.254.33.34/24 dev sflow-intf2", true},
		{"ip netns exec sflow-vm2 ip link set sflow-intf2 up", true},

		{"ip netns exec sflow-vm1 ping -c 25 -I sflow-intf1 169.254.33.34", false},
	}

	tearDownCmds := []helper.Cmd{
		{"ip netns del sflow-vm1", true},
		{"ip netns del sflow-vm2", true},
		{"ovs-vsctl del-br br-sflow", true},
	}

	helper.ExecCmds(t, setupCmds...)
	defer helper.ExecCmds(t, tearDownCmds...)

	aa.Flush()

	ok := false
	for _, f := range ts.GetFlows() {
		// we can have both way depending on which packet has been seen first
		if (f.IfSrcGraphPath == hostname+"[Type=host]/sflow-vm1[Type=netns]/sflow-intf1[Type=internal]" &&
			f.IfDstGraphPath == hostname+"[Type=host]/sflow-vm2[Type=netns]/sflow-intf2[Type=internal]") ||
			(f.IfSrcGraphPath == hostname+"[Type=host]/sflow-vm2[Type=netns]/sflow-intf2[Type=internal]" &&
				f.IfDstGraphPath == hostname+"[Type=host]/sflow-vm1[Type=netns]/sflow-intf1[Type=internal]") {
			ok = true
			break
		}
	}

	if !ok {
		t.Errorf("Unable to find flows with the expected path: %v\n %s", ts.GetFlows(), aa.Agent.Graph.String())
	}

	client.Delete("capture", "*/br-sflow[Type=ovsbridge]")
}
Example #5
0
func TestSFlowTwoProbePath(t *testing.T) {
	hostname, err := os.Hostname()
	if err != nil {
		t.Fatal(err.Error())
	}

	ts := NewTestStorage()

	aa := helper.NewAgentAnalyzerWithConfig(t, confAgentAnalyzer, ts)
	aa.Start()
	defer aa.Stop()

	client := api.NewCrudClientFromConfig(&http.AuthenticationOpts{})
	capture1 := &api.Capture{ProbePath: "*/br-sflow1[Type=ovsbridge]"}
	if err := client.Create("capture", &capture1); err != nil {
		t.Fatal(err.Error())
	}
	capture2 := &api.Capture{ProbePath: "*/br-sflow2[Type=ovsbridge]"}
	if err := client.Create("capture", &capture2); err != nil {
		t.Fatal(err.Error())
	}

	time.Sleep(5 * time.Second)
	setupCmds := []helper.Cmd{
		{"ovs-vsctl add-br br-sflow1", true},
		{"ovs-vsctl add-port br-sflow1 sflow-intf1 -- set interface sflow-intf1 type=internal", true},
		{"ip netns add sflow-vm1", true},
		{"ip link set sflow-intf1 netns sflow-vm1", true},
		{"ip netns exec sflow-vm1 ip address add 169.254.33.33/24 dev sflow-intf1", true},
		{"ip netns exec sflow-vm1 ip link set sflow-intf1 up", true},

		{"ovs-vsctl add-br br-sflow2", true},
		{"ovs-vsctl add-port br-sflow2 sflow-intf2 -- set interface sflow-intf2 type=internal", true},
		{"ip netns add sflow-vm2", true},
		{"ip link set sflow-intf2 netns sflow-vm2", true},
		{"ip netns exec sflow-vm2 ip address add 169.254.33.34/24 dev sflow-intf2", true},
		{"ip netns exec sflow-vm2 ip link set sflow-intf2 up", true},

		// interfaces used to link br-sflow1 and br-sflow2 without a patch
		{"ovs-vsctl add-port br-sflow1 sflow-link1 -- set interface sflow-link1 type=internal", true},
		{"ip link set sflow-link1 up", true},
		{"ovs-vsctl add-port br-sflow2 sflow-link2 -- set interface sflow-link2 type=internal", true},
		{"ip link set sflow-link2 up", true},

		{"brctl addbr br-link", true},
		{"ip link set br-link up", true},
		{"brctl addif br-link sflow-link1", true},
		{"brctl addif br-link sflow-link2", true},

		{"ip netns exec sflow-vm2 ping -c 15 -I sflow-intf2 169.254.33.33", false},
	}

	tearDownCmds := []helper.Cmd{
		{"ip netns del sflow-vm1", true},
		{"ip netns del sflow-vm2", true},
		{"ovs-vsctl del-br br-sflow1", true},
		{"ovs-vsctl del-br br-sflow2", true},
		{"ip link set br-link down", true},
		{"brctl delbr br-link", true},
	}

	helper.ExecCmds(t, setupCmds...)
	defer helper.ExecCmds(t, tearDownCmds...)

	aa.Flush()

	flows := []*flow.Flow{}
	for _, f := range ts.GetFlows() {
		if f.LayersPath == "Ethernet/IPv4/ICMPv4/Payload" {
			flows = append(flows, f)
		}
	}

	if len(flows) != 2 {
		t.Errorf("Should have 2 flow entries one per probepath got: %d", len(flows))
	}

	if flows[0].ProbeGraphPath != hostname+"[Type=host]/br-sflow1[Type=ovsbridge]" &&
		flows[0].ProbeGraphPath != hostname+"[Type=host]/br-sflow2[Type=ovsbridge]" {
		t.Errorf("Bad probepath for the first flow: %s", flows[0].ProbeGraphPath)
	}

	if flows[1].ProbeGraphPath != hostname+"[Type=host]/br-sflow1[Type=ovsbridge]" &&
		flows[1].ProbeGraphPath != hostname+"[Type=host]/br-sflow2[Type=ovsbridge]" {
		t.Errorf("Bad probepath for the second flow: %s", flows[1].ProbeGraphPath)
	}

	if flows[0].FlowUUID != flows[1].FlowUUID {
		t.Errorf("Both flows should have the same FlowUUID: %v", flows)
	}

	if flows[0].UUID == flows[1].UUID {
		t.Errorf("Both flows should have different UUID: %v", flows)
	}

	client.Delete("capture", "*/br-sflow1[Type=ovsbridge]")
	client.Delete("capture", "*/br-sflow2[Type=ovsbridge]")
}