| // Copyright 2021 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package wifi |
| |
| import ( |
| "context" |
| "strconv" |
| "time" |
| |
| "chromiumos/tast/common/network/ping" |
| "chromiumos/tast/common/wifi/security/wpa" |
| "chromiumos/tast/common/wifi/security/wpaeap" |
| "chromiumos/tast/ctxutil" |
| "chromiumos/tast/remote/bundles/cros/wifi/wifiutil" |
| remoteping "chromiumos/tast/remote/network/ping" |
| "chromiumos/tast/remote/wificell" |
| "chromiumos/tast/remote/wificell/hostapd" |
| "chromiumos/tast/remote/wificell/verifier" |
| "chromiumos/tast/testing" |
| "chromiumos/tast/testing/hwdep" |
| ) |
| |
| type pingParam struct { |
| opts []ping.Option |
| // Max packets lost per roaming round. |
| maxLoss int |
| } |
| |
| func init() { |
| testing.AddTest(&testing.Test{ |
| Func: RoamContPing, |
| Desc: "Send ping every 10ms and check how many packets are lost on average during roaming", |
| Contacts: []string{ |
| "jck@semihalf.com", // Test author |
| "chromeos-wifi-champs@google.com", // WiFi oncall rotation; or http://b/new?component=893827 |
| }, |
| Attr: []string{"group:wificell", "wificell_perf", "wificell_unstable"}, |
| ServiceDeps: []string{wificell.TFServiceName}, |
| HardwareDeps: hwdep.D(hwdep.Wifi80211ac()), |
| Fixture: "wificellFixtWithCapture", |
| Timeout: time.Minute * 5, // The average test time doubled. |
| Vars: []string{"wifi.RoamContPing.rounds"}, |
| Params: []testing.Param{{ |
| Name: "none", |
| Val: wifiutil.ContParam{ |
| Rounds: 50, |
| ApOpts: [2][]hostapd.Option{{hostapd.Channel(1), hostapd.Mode(hostapd.Mode80211g)}, |
| {hostapd.Channel(157), hostapd.Mode(hostapd.Mode80211acPure), hostapd.HTCaps(hostapd.HTCapHT40Plus), hostapd.VHTCaps(hostapd.VHTCapSGI80), |
| hostapd.VHTChWidth(hostapd.VHTChWidth80), hostapd.VHTCenterChannel(155)}}, |
| Param: pingParam{ |
| opts: []ping.Option{ping.Count(1000), ping.Interval(0.01)}, |
| // With 10ms ping interval, abnormal time without service would be 25 packets = 250ms. |
| maxLoss: 25, |
| }, |
| }, |
| }, { |
| Name: "psk", |
| Val: wifiutil.ContParam{ |
| Rounds: 50, |
| ApOpts: [2][]hostapd.Option{{hostapd.Channel(1), hostapd.Mode(hostapd.Mode80211g)}, |
| {hostapd.Channel(157), hostapd.Mode(hostapd.Mode80211acPure), hostapd.HTCaps(hostapd.HTCapHT40Plus), hostapd.VHTCaps(hostapd.VHTCapSGI80), |
| hostapd.VHTChWidth(hostapd.VHTChWidth80), hostapd.VHTCenterChannel(155)}}, |
| SecConfFac: wpa.NewConfigFactory("chromeos", wpa.Mode(wpa.ModePureWPA2), wpa.Ciphers2(wpa.CipherCCMP)), |
| Param: pingParam{ |
| opts: []ping.Option{ping.Count(1000), ping.Interval(0.01)}, |
| maxLoss: 25, |
| }, |
| }, |
| }, { |
| Name: "ft_psk", |
| Val: wifiutil.ContParam{ |
| Rounds: 50, |
| ApOpts: [2][]hostapd.Option{{hostapd.Channel(1), hostapd.Mode(hostapd.Mode80211g)}, |
| {hostapd.Channel(157), hostapd.Mode(hostapd.Mode80211acPure), hostapd.HTCaps(hostapd.HTCapHT40Plus), hostapd.VHTCaps(hostapd.VHTCapSGI80), |
| hostapd.VHTChWidth(hostapd.VHTChWidth80), hostapd.VHTCenterChannel(155)}}, |
| SecConfFac: wpa.NewConfigFactory("chromeos", wpa.Mode(wpa.ModePureWPA2), wpa.Ciphers2(wpa.CipherCCMP), wpa.FTMode(wpa.FTModePure)), |
| EnableFT: true, |
| Param: pingParam{ |
| opts: []ping.Option{ping.Count(1000), ping.Interval(0.01)}, |
| maxLoss: 25, |
| }, |
| }, |
| }, { |
| Name: "eap", |
| Val: wifiutil.ContParam{ |
| Rounds: 50, |
| ApOpts: [2][]hostapd.Option{{hostapd.Channel(1), hostapd.Mode(hostapd.Mode80211g)}, |
| {hostapd.Channel(157), hostapd.Mode(hostapd.Mode80211acPure), hostapd.HTCaps(hostapd.HTCapHT40Plus), hostapd.VHTCaps(hostapd.VHTCapSGI80), |
| hostapd.VHTChWidth(hostapd.VHTChWidth80), hostapd.VHTCenterChannel(155)}}, |
| SecConfFac: wpaeap.NewConfigFactory( |
| wifiutil.Cert1.CACred.Cert, wifiutil.Cert1.ServerCred, |
| wpaeap.ClientCACert(wifiutil.Cert1.CACred.Cert), wpaeap.ClientCred(wifiutil.Cert1.ClientCred), |
| wpaeap.Mode(wpa.ModePureWPA2), |
| ), |
| Param: pingParam{ |
| opts: []ping.Option{ping.Count(1000), ping.Interval(0.01)}, |
| maxLoss: 25, |
| }, |
| }, |
| }, { |
| Name: "ft_eap", |
| Val: wifiutil.ContParam{ |
| Rounds: 50, |
| ApOpts: [2][]hostapd.Option{{hostapd.Channel(1), hostapd.Mode(hostapd.Mode80211g)}, |
| {hostapd.Channel(157), hostapd.Mode(hostapd.Mode80211acPure), hostapd.HTCaps(hostapd.HTCapHT40Plus), hostapd.VHTCaps(hostapd.VHTCapSGI80), |
| hostapd.VHTChWidth(hostapd.VHTChWidth80), hostapd.VHTCenterChannel(155)}}, |
| SecConfFac: wpaeap.NewConfigFactory( |
| wifiutil.Cert1.CACred.Cert, wifiutil.Cert1.ServerCred, |
| wpaeap.ClientCACert(wifiutil.Cert1.CACred.Cert), wpaeap.ClientCred(wifiutil.Cert1.ClientCred), |
| wpaeap.Mode(wpa.ModePureWPA2), wpaeap.FTMode(wpa.FTModePure), |
| ), |
| EnableFT: true, |
| Param: pingParam{ |
| opts: []ping.Option{ping.Count(1000), ping.Interval(0.01)}, |
| maxLoss: 25, |
| }, |
| }, |
| }}, |
| }) |
| } |
| |
| func RoamContPing(ctx context.Context, s *testing.State) { |
| tf := s.FixtValue().(*wificell.TestFixture) |
| |
| param := s.Param().(wifiutil.ContParam) |
| |
| // Allow override |
| var rounds int |
| roundsStr, ok := s.Var("wifi.RoamContPing.rounds") |
| if !ok { |
| rounds = param.Rounds |
| } else { |
| var err error |
| rounds, err = strconv.Atoi(roundsStr) |
| if err != nil { |
| s.Fatal("Failed to convert value, err: ", err) |
| } |
| } |
| |
| ctx, ct, finish := wifiutil.ContinuityTestInitialSetup(ctx, s, tf) |
| defer finish() |
| ctx, cancel := ctxutil.Shorten(ctx, 10*time.Second) |
| defer cancel() |
| |
| var vf *verifier.Verifier |
| var resultAssertF func(context.Context, []verifier.ResultType) |
| pingF := func(ctx context.Context) (verifier.ResultType, error) { |
| iface, err := tf.ClientInterface(ctx) |
| if err != nil { |
| s.Fatal("DUT: failed to get the client WiFi interface: ", err) |
| } |
| |
| opts := param.Param.(pingParam).opts |
| // Bind ping used in all WiFi Tests to WiFiInterface. Otherwise if the |
| // WiFi interface is not up yet they will be routed through the Ethernet |
| // interface. Also see b/225205611 for details. |
| opts = append(opts, ping.BindAddress(true), ping.SourceIface(iface)) |
| |
| // We need more result data than a simple tf.PingFromDUT(), so we use a separate runner. |
| pr := remoteping.NewRemoteRunner(s.DUT().Conn()) |
| res, err := pr.Ping(ctx, wifiutil.ServerIP(), opts...) |
| if err != nil { |
| testing.ContextLog(ctx, "ping error: ", err) |
| return verifier.ResultType{}, err |
| } |
| testing.ContextLogf(ctx, "Continuity: ping statistics=%+v", res) |
| return verifier.ResultType{Data: res, Timestamp: time.Now()}, nil |
| } |
| resultAssertF = func(ctx context.Context, results []verifier.ResultType) { |
| var sent, received int |
| for i, ret := range results { |
| pingData := ret.Data.(*ping.Result) |
| testing.ContextLogf(ctx, "Iteration %d: End Time=%s, Packets lost=%d", |
| i+1, ret.Timestamp.Format("15:04:05.000"), pingData.Sent-pingData.Received) |
| sent += pingData.Sent |
| received += pingData.Received |
| } |
| loss := sent - received |
| testing.ContextLogf(ctx, "Total packets lost=%d/%d (%d per round)", |
| loss, sent, loss/rounds) |
| |
| if loss > rounds*param.Param.(pingParam).maxLoss { |
| s.Fatal("Loss threshold exceeded") |
| } |
| } |
| vf = verifier.NewVerifier(ctx, pingF) |
| defer vf.Finish() |
| ctx, cancel = ctxutil.Shorten(ctx, time.Second) |
| defer cancel() |
| |
| ctx, destroy := ct.ContinuityTestSetupFinalize(ctx, s) |
| defer destroy() |
| ctx, cancel = ctxutil.Shorten(ctx, time.Second) |
| defer cancel() |
| |
| vf.StartJob() |
| |
| for i := 0; i < rounds; i++ { |
| ct.ContinuityRound(ctx, s, i) |
| } |
| results, err := vf.StopJob() |
| if err != nil { |
| s.Fatal("Error while receiving verification results, err: ", err) |
| return |
| } |
| resultAssertF(ctx, results) |
| } |
