1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #define DEBUG false  // STOPSHIP if true
18 #include "Log.h"
19 
20 #include "StatsService.h"
21 #include "stats_log_util.h"
22 #include "android-base/stringprintf.h"
23 #include "config/ConfigKey.h"
24 #include "config/ConfigManager.h"
25 #include "guardrail/StatsdStats.h"
26 #include "storage/StorageManager.h"
27 #include "subscriber/SubscriberReporter.h"
28 
29 #include <android-base/file.h>
30 #include <android-base/stringprintf.h>
31 #include <android-base/strings.h>
32 #include <binder/IPCThreadState.h>
33 #include <binder/IServiceManager.h>
34 #include <binder/PermissionController.h>
35 #include <cutils/multiuser.h>
36 #include <dirent.h>
37 #include <frameworks/base/cmds/statsd/src/statsd_config.pb.h>
38 #include <frameworks/base/cmds/statsd/src/uid_data.pb.h>
39 #include <private/android_filesystem_config.h>
40 #include <statslog.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <sys/system_properties.h>
44 #include <unistd.h>
45 #include <utils/Looper.h>
46 #include <utils/String16.h>
47 #include <chrono>
48 
49 using namespace android;
50 
51 using android::base::StringPrintf;
52 using android::util::FIELD_COUNT_REPEATED;
53 using android::util::FIELD_TYPE_INT64;
54 using android::util::FIELD_TYPE_MESSAGE;
55 using android::util::ProtoReader;
56 
57 namespace android {
58 namespace os {
59 namespace statsd {
60 
61 constexpr const char* kPermissionDump = "android.permission.DUMP";
62 constexpr const char* kPermissionUsage = "android.permission.PACKAGE_USAGE_STATS";
63 
64 constexpr const char* kOpUsage = "android:get_usage_stats";
65 
66 #define STATS_SERVICE_DIR "/data/misc/stats-service"
67 
68 // for StatsDataDumpProto
69 const int FIELD_ID_REPORTS_LIST = 1;
70 
ok()71 static binder::Status ok() {
72     return binder::Status::ok();
73 }
74 
exception(uint32_t code,const std::string & msg)75 static binder::Status exception(uint32_t code, const std::string& msg) {
76     ALOGE("%s (%d)", msg.c_str(), code);
77     return binder::Status::fromExceptionCode(code, String8(msg.c_str()));
78 }
79 
checkUid(uid_t expectedUid)80 binder::Status checkUid(uid_t expectedUid) {
81     uid_t uid = IPCThreadState::self()->getCallingUid();
82     if (uid == expectedUid || uid == AID_ROOT) {
83         return ok();
84     } else {
85         return exception(binder::Status::EX_SECURITY,
86                 StringPrintf("UID %d is not expected UID %d", uid, expectedUid));
87     }
88 }
89 
checkDumpAndUsageStats(const String16 & packageName)90 binder::Status checkDumpAndUsageStats(const String16& packageName) {
91     pid_t pid = IPCThreadState::self()->getCallingPid();
92     uid_t uid = IPCThreadState::self()->getCallingUid();
93 
94     // Root, system, and shell always have access
95     if (uid == AID_ROOT || uid == AID_SYSTEM || uid == AID_SHELL) {
96         return ok();
97     }
98 
99     // Caller must be granted these permissions
100     if (!checkCallingPermission(String16(kPermissionDump))) {
101         return exception(binder::Status::EX_SECURITY,
102                 StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, kPermissionDump));
103     }
104     if (!checkCallingPermission(String16(kPermissionUsage))) {
105         return exception(binder::Status::EX_SECURITY,
106                 StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, kPermissionUsage));
107     }
108 
109     // Caller must also have usage stats op granted
110     PermissionController pc;
111     switch (pc.noteOp(String16(kOpUsage), uid, packageName)) {
112         case PermissionController::MODE_ALLOWED:
113         case PermissionController::MODE_DEFAULT:
114             return ok();
115         default:
116             return exception(binder::Status::EX_SECURITY,
117                     StringPrintf("UID %d / PID %d lacks app-op %s", uid, pid, kOpUsage));
118     }
119 }
120 
121 #define ENFORCE_UID(uid) {                                        \
122     binder::Status status = checkUid((uid));                      \
123     if (!status.isOk()) {                                         \
124         return status;                                            \
125     }                                                             \
126 }
127 
128 #define ENFORCE_DUMP_AND_USAGE_STATS(packageName) {               \
129     binder::Status status = checkDumpAndUsageStats(packageName);  \
130     if (!status.isOk()) {                                         \
131         return status;                                            \
132     }                                                             \
133 }
134 
StatsService(const sp<Looper> & handlerLooper,shared_ptr<LogEventQueue> queue)135 StatsService::StatsService(const sp<Looper>& handlerLooper, shared_ptr<LogEventQueue> queue)
136     : mAnomalyAlarmMonitor(new AlarmMonitor(
137               MIN_DIFF_TO_UPDATE_REGISTERED_ALARM_SECS,
138               [](const sp<IStatsCompanionService>& sc, int64_t timeMillis) {
139                   if (sc != nullptr) {
140                       sc->setAnomalyAlarm(timeMillis);
141                       StatsdStats::getInstance().noteRegisteredAnomalyAlarmChanged();
142                   }
143               },
__anon24fc2e590202(const sp<IStatsCompanionService>& sc) 144               [](const sp<IStatsCompanionService>& sc) {
145                   if (sc != nullptr) {
146                       sc->cancelAnomalyAlarm();
147                       StatsdStats::getInstance().noteRegisteredAnomalyAlarmChanged();
148                   }
149               })),
150       mPeriodicAlarmMonitor(new AlarmMonitor(
151               MIN_DIFF_TO_UPDATE_REGISTERED_ALARM_SECS,
__anon24fc2e590302(const sp<IStatsCompanionService>& sc, int64_t timeMillis) 152               [](const sp<IStatsCompanionService>& sc, int64_t timeMillis) {
153                   if (sc != nullptr) {
154                       sc->setAlarmForSubscriberTriggering(timeMillis);
155                       StatsdStats::getInstance().noteRegisteredPeriodicAlarmChanged();
156                   }
157               },
__anon24fc2e590402(const sp<IStatsCompanionService>& sc) 158               [](const sp<IStatsCompanionService>& sc) {
159                   if (sc != nullptr) {
160                       sc->cancelAlarmForSubscriberTriggering();
161                       StatsdStats::getInstance().noteRegisteredPeriodicAlarmChanged();
162                   }
163               })),
164       mEventQueue(queue) {
165     mUidMap = UidMap::getInstance();
166     mPullerManager = new StatsPullerManager();
167     StatsPuller::SetUidMap(mUidMap);
168     mConfigManager = new ConfigManager();
169     mProcessor = new StatsLogProcessor(
170             mUidMap, mPullerManager, mAnomalyAlarmMonitor, mPeriodicAlarmMonitor,
171             getElapsedRealtimeNs(),
__anon24fc2e590502(const ConfigKey& key) 172             [this](const ConfigKey& key) {
173                 sp<IStatsCompanionService> sc = getStatsCompanionService();
174                 auto receiver = mConfigManager->GetConfigReceiver(key);
175                 if (sc == nullptr) {
176                     VLOG("Could not find StatsCompanionService");
177                     return false;
178                 } else if (receiver == nullptr) {
179                     VLOG("Statscompanion could not find a broadcast receiver for %s",
180                          key.ToString().c_str());
181                     return false;
182                 } else {
183                     sc->sendDataBroadcast(receiver, mProcessor->getLastReportTimeNs(key));
184                     return true;
185                 }
186             },
__anon24fc2e590602(const int& uid, const vector<int64_t>& activeConfigs) 187             [this](const int& uid, const vector<int64_t>& activeConfigs) {
188                 auto receiver = mConfigManager->GetActiveConfigsChangedReceiver(uid);
189                 sp<IStatsCompanionService> sc = getStatsCompanionService();
190                 if (sc == nullptr) {
191                     VLOG("Could not access statsCompanion");
192                     return false;
193                 } else if (receiver == nullptr) {
194                     VLOG("Could not find receiver for uid %d", uid);
195                     return false;
196                 } else {
197                     sc->sendActiveConfigsChangedBroadcast(receiver, activeConfigs);
198                     VLOG("StatsService::active configs broadcast succeeded for uid %d" , uid);
199                     return true;
200                 }
201             });
202 
203     mConfigManager->AddListener(mProcessor);
204 
205     init_system_properties();
206 
207     if (mEventQueue != nullptr) {
__anon24fc2e590702null208         std::thread pushedEventThread([this] { readLogs(); });
209         pushedEventThread.detach();
210     }
211 }
212 
~StatsService()213 StatsService::~StatsService() {
214 }
215 
216 /* Runs on a dedicated thread to process pushed events. */
readLogs()217 void StatsService::readLogs() {
218     // Read forever..... long live statsd
219     while (1) {
220         // Block until an event is available.
221         auto event = mEventQueue->waitPop();
222         // Pass it to StatsLogProcess to all configs/metrics
223         // At this point, the LogEventQueue is not blocked, so that the socketListener
224         // can read events from the socket and write to buffer to avoid data drop.
225         mProcessor->OnLogEvent(event.get());
226         // The ShellSubscriber is only used by shell for local debugging.
227         if (mShellSubscriber != nullptr) {
228             mShellSubscriber->onLogEvent(*event);
229         }
230     }
231 }
232 
init_system_properties()233 void StatsService::init_system_properties() {
234     mEngBuild = false;
235     const prop_info* buildType = __system_property_find("ro.build.type");
236     if (buildType != NULL) {
237         __system_property_read_callback(buildType, init_build_type_callback, this);
238     }
239 }
240 
init_build_type_callback(void * cookie,const char *,const char * value,uint32_t serial)241 void StatsService::init_build_type_callback(void* cookie, const char* /*name*/, const char* value,
242                                             uint32_t serial) {
243     if (0 == strcmp("eng", value) || 0 == strcmp("userdebug", value)) {
244         reinterpret_cast<StatsService*>(cookie)->mEngBuild = true;
245     }
246 }
247 
248 /**
249  * Implement our own because the default binder implementation isn't
250  * properly handling SHELL_COMMAND_TRANSACTION.
251  */
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)252 status_t StatsService::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
253                                   uint32_t flags) {
254     switch (code) {
255         case SHELL_COMMAND_TRANSACTION: {
256             int in = data.readFileDescriptor();
257             int out = data.readFileDescriptor();
258             int err = data.readFileDescriptor();
259             int argc = data.readInt32();
260             Vector<String8> args;
261             for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
262                 args.add(String8(data.readString16()));
263             }
264             sp<IShellCallback> shellCallback = IShellCallback::asInterface(data.readStrongBinder());
265             sp<IResultReceiver> resultReceiver =
266                     IResultReceiver::asInterface(data.readStrongBinder());
267 
268             err = command(in, out, err, args, resultReceiver);
269             resultReceiver->send(err);
270             return NO_ERROR;
271         }
272         default: { return BnStatsManager::onTransact(code, data, reply, flags); }
273     }
274 }
275 
276 /**
277  * Write data from statsd.
278  * Format for statsdStats:  adb shell dumpsys stats --metadata [-v] [--proto]
279  * Format for data report:  adb shell dumpsys stats [anything other than --metadata] [--proto]
280  * Anything ending in --proto will be in proto format.
281  * Anything without --metadata as the first argument will be report information.
282  *     (bugreports call "adb shell dumpsys stats --dump-priority NORMAL -a --proto")
283  * TODO: Come up with a more robust method of enacting <serviceutils/PriorityDumper.h>.
284  */
dump(int fd,const Vector<String16> & args)285 status_t StatsService::dump(int fd, const Vector<String16>& args) {
286     if (!checkCallingPermission(String16(kPermissionDump))) {
287         return PERMISSION_DENIED;
288     }
289     int lastArg = args.size() - 1;
290     bool asProto = false;
291     if (lastArg >= 0 && !args[lastArg].compare(String16("--proto"))) { // last argument
292         asProto = true;
293         lastArg--;
294     }
295     if (args.size() > 0 && !args[0].compare(String16("--metadata"))) { // first argument
296         // Request is to dump statsd stats.
297         bool verbose = false;
298         if (lastArg >= 0 && !args[lastArg].compare(String16("-v"))) {
299             verbose = true;
300             lastArg--;
301         }
302         dumpStatsdStats(fd, verbose, asProto);
303     } else {
304         // Request is to dump statsd report data.
305         if (asProto) {
306             dumpIncidentSection(fd);
307         } else {
308             dprintf(fd, "Non-proto format of stats data dump not available; see proto version.\n");
309         }
310     }
311 
312     return NO_ERROR;
313 }
314 
315 /**
316  * Write debugging data about statsd in text or proto format.
317  */
dumpStatsdStats(int out,bool verbose,bool proto)318 void StatsService::dumpStatsdStats(int out, bool verbose, bool proto) {
319     if (proto) {
320         vector<uint8_t> data;
321         StatsdStats::getInstance().dumpStats(&data, false); // does not reset statsdStats.
322         for (size_t i = 0; i < data.size(); i ++) {
323             dprintf(out, "%c", data[i]);
324         }
325     } else {
326         StatsdStats::getInstance().dumpStats(out);
327         mProcessor->dumpStates(out, verbose);
328     }
329 }
330 
331 /**
332  * Write stats report data in StatsDataDumpProto incident section format.
333  */
dumpIncidentSection(int out)334 void StatsService::dumpIncidentSection(int out) {
335     ProtoOutputStream proto;
336     for (const ConfigKey& configKey : mConfigManager->GetAllConfigKeys()) {
337         uint64_t reportsListToken =
338                 proto.start(FIELD_TYPE_MESSAGE | FIELD_COUNT_REPEATED | FIELD_ID_REPORTS_LIST);
339         mProcessor->onDumpReport(configKey, getElapsedRealtimeNs(),
340                                  true /* includeCurrentBucket */, false /* erase_data */,
341                                  ADB_DUMP,
342                                  FAST,
343                                  &proto);
344         proto.end(reportsListToken);
345         proto.flush(out);
346         proto.clear();
347     }
348 }
349 
350 /**
351  * Implementation of the adb shell cmd stats command.
352  */
command(int in,int out,int err,Vector<String8> & args,sp<IResultReceiver> resultReceiver)353 status_t StatsService::command(int in, int out, int err, Vector<String8>& args,
354                                sp<IResultReceiver> resultReceiver) {
355     uid_t uid = IPCThreadState::self()->getCallingUid();
356     if (uid != AID_ROOT && uid != AID_SHELL) {
357         return PERMISSION_DENIED;
358     }
359 
360     const int argCount = args.size();
361     if (argCount >= 1) {
362         // adb shell cmd stats config ...
363         if (!args[0].compare(String8("config"))) {
364             return cmd_config(in, out, err, args);
365         }
366 
367         if (!args[0].compare(String8("print-uid-map"))) {
368             return cmd_print_uid_map(out, args);
369         }
370 
371         if (!args[0].compare(String8("dump-report"))) {
372             return cmd_dump_report(out, args);
373         }
374 
375         if (!args[0].compare(String8("pull-source")) && args.size() > 1) {
376             return cmd_print_pulled_metrics(out, args);
377         }
378 
379         if (!args[0].compare(String8("send-broadcast"))) {
380             return cmd_trigger_broadcast(out, args);
381         }
382 
383         if (!args[0].compare(String8("print-stats"))) {
384             return cmd_print_stats(out, args);
385         }
386 
387         if (!args[0].compare(String8("meminfo"))) {
388             return cmd_dump_memory_info(out);
389         }
390 
391         if (!args[0].compare(String8("write-to-disk"))) {
392             return cmd_write_data_to_disk(out);
393         }
394 
395         if (!args[0].compare(String8("log-app-breadcrumb"))) {
396             return cmd_log_app_breadcrumb(out, args);
397         }
398 
399         if (!args[0].compare(String8("log-binary-push"))) {
400             return cmd_log_binary_push(out, args);
401         }
402 
403         if (!args[0].compare(String8("clear-puller-cache"))) {
404             return cmd_clear_puller_cache(out);
405         }
406 
407         if (!args[0].compare(String8("print-logs"))) {
408             return cmd_print_logs(out, args);
409         }
410         if (!args[0].compare(String8("send-active-configs"))) {
411             return cmd_trigger_active_config_broadcast(out, args);
412         }
413         if (!args[0].compare(String8("data-subscribe"))) {
414             if (mShellSubscriber == nullptr) {
415                 mShellSubscriber = new ShellSubscriber(mUidMap, mPullerManager);
416             }
417             int timeoutSec = -1;
418             if (argCount >= 2) {
419                 timeoutSec = atoi(args[1].c_str());
420             }
421             mShellSubscriber->startNewSubscription(in, out, resultReceiver, timeoutSec);
422             return NO_ERROR;
423         }
424     }
425 
426     print_cmd_help(out);
427     return NO_ERROR;
428 }
429 
print_cmd_help(int out)430 void StatsService::print_cmd_help(int out) {
431     dprintf(out,
432             "usage: adb shell cmd stats print-stats-log [tag_required] "
433             "[timestamp_nsec_optional]\n");
434     dprintf(out, "\n");
435     dprintf(out, "\n");
436     dprintf(out, "usage: adb shell cmd stats meminfo\n");
437     dprintf(out, "\n");
438     dprintf(out, "  Prints the malloc debug information. You need to run the following first: \n");
439     dprintf(out, "   # adb shell stop\n");
440     dprintf(out, "   # adb shell setprop libc.debug.malloc.program statsd \n");
441     dprintf(out, "   # adb shell setprop libc.debug.malloc.options backtrace \n");
442     dprintf(out, "   # adb shell start\n");
443     dprintf(out, "\n");
444     dprintf(out, "\n");
445     dprintf(out, "usage: adb shell cmd stats print-uid-map [PKG]\n");
446     dprintf(out, "\n");
447     dprintf(out, "  Prints the UID, app name, version mapping.\n");
448     dprintf(out, "  PKG           Optional package name to print the uids of the package\n");
449     dprintf(out, "\n");
450     dprintf(out, "\n");
451     dprintf(out, "usage: adb shell cmd stats pull-source [int] \n");
452     dprintf(out, "\n");
453     dprintf(out, "  Prints the output of a pulled metrics source (int indicates source)\n");
454     dprintf(out, "\n");
455     dprintf(out, "\n");
456     dprintf(out, "usage: adb shell cmd stats write-to-disk \n");
457     dprintf(out, "\n");
458     dprintf(out, "  Flushes all data on memory to disk.\n");
459     dprintf(out, "\n");
460     dprintf(out, "\n");
461     dprintf(out, "usage: adb shell cmd stats log-app-breadcrumb [UID] LABEL STATE\n");
462     dprintf(out, "  Writes an AppBreadcrumbReported event to the statslog buffer.\n");
463     dprintf(out, "  UID           The uid to use. It is only possible to pass a UID\n");
464     dprintf(out, "                parameter on eng builds. If UID is omitted the calling\n");
465     dprintf(out, "                uid is used.\n");
466     dprintf(out, "  LABEL         Integer in [0, 15], as per atoms.proto.\n");
467     dprintf(out, "  STATE         Integer in [0, 3], as per atoms.proto.\n");
468     dprintf(out, "\n");
469     dprintf(out, "\n");
470     dprintf(out,
471             "usage: adb shell cmd stats log-binary-push NAME VERSION STAGING ROLLBACK_ENABLED "
472             "LOW_LATENCY STATE EXPERIMENT_IDS\n");
473     dprintf(out, "  Log a binary push state changed event.\n");
474     dprintf(out, "  NAME                The train name.\n");
475     dprintf(out, "  VERSION             The train version code.\n");
476     dprintf(out, "  STAGING             If this train requires a restart.\n");
477     dprintf(out, "  ROLLBACK_ENABLED    If rollback should be enabled for this install.\n");
478     dprintf(out, "  LOW_LATENCY         If the train requires low latency monitoring.\n");
479     dprintf(out, "  STATE               The status of the train push.\n");
480     dprintf(out, "                      Integer value of the enum in atoms.proto.\n");
481     dprintf(out, "  EXPERIMENT_IDS      Comma separated list of experiment ids.\n");
482     dprintf(out, "                      Leave blank for none.\n");
483     dprintf(out, "\n");
484     dprintf(out, "\n");
485     dprintf(out, "usage: adb shell cmd stats config remove [UID] [NAME]\n");
486     dprintf(out, "usage: adb shell cmd stats config update [UID] NAME\n");
487     dprintf(out, "\n");
488     dprintf(out, "  Adds, updates or removes a configuration. The proto should be in\n");
489     dprintf(out, "  wire-encoded protobuf format and passed via stdin. If no UID and name is\n");
490     dprintf(out, "  provided, then all configs will be removed from memory and disk.\n");
491     dprintf(out, "\n");
492     dprintf(out, "  UID           The uid to use. It is only possible to pass the UID\n");
493     dprintf(out, "                parameter on eng builds. If UID is omitted the calling\n");
494     dprintf(out, "                uid is used.\n");
495     dprintf(out, "  NAME          The per-uid name to use\n");
496     dprintf(out, "\n");
497     dprintf(out, "\n              *Note: If both UID and NAME are omitted then all configs will\n");
498     dprintf(out, "\n                     be removed from memory and disk!\n");
499     dprintf(out, "\n");
500     dprintf(out,
501             "usage: adb shell cmd stats dump-report [UID] NAME [--keep_data] "
502             "[--include_current_bucket] [--proto]\n");
503     dprintf(out, "  Dump all metric data for a configuration.\n");
504     dprintf(out, "  UID           The uid of the configuration. It is only possible to pass\n");
505     dprintf(out, "                the UID parameter on eng builds. If UID is omitted the\n");
506     dprintf(out, "                calling uid is used.\n");
507     dprintf(out, "  NAME          The name of the configuration\n");
508     dprintf(out, "  --keep_data   Do NOT erase the data upon dumping it.\n");
509     dprintf(out, "  --proto       Print proto binary.\n");
510     dprintf(out, "\n");
511     dprintf(out, "\n");
512     dprintf(out, "usage: adb shell cmd stats send-broadcast [UID] NAME\n");
513     dprintf(out, "  Send a broadcast that triggers the subscriber to fetch metrics.\n");
514     dprintf(out, "  UID           The uid of the configuration. It is only possible to pass\n");
515     dprintf(out, "                the UID parameter on eng builds. If UID is omitted the\n");
516     dprintf(out, "                calling uid is used.\n");
517     dprintf(out, "  NAME          The name of the configuration\n");
518     dprintf(out, "\n");
519     dprintf(out, "\n");
520     dprintf(out,
521             "usage: adb shell cmd stats send-active-configs [--uid=UID] [--configs] "
522             "[NAME1] [NAME2] [NAME3..]\n");
523     dprintf(out, "  Send a broadcast that informs the subscriber of the current active configs.\n");
524     dprintf(out, "  --uid=UID     The uid of the configurations. It is only possible to pass\n");
525     dprintf(out, "                the UID parameter on eng builds. If UID is omitted the\n");
526     dprintf(out, "                calling uid is used.\n");
527     dprintf(out, "  --configs     Send the list of configs in the name list instead of\n");
528     dprintf(out, "                the currently active configs\n");
529     dprintf(out, "  NAME LIST     List of configuration names to be included in the broadcast.\n");
530     dprintf(out, "\n");
531     dprintf(out, "\n");
532     dprintf(out, "usage: adb shell cmd stats print-stats\n");
533     dprintf(out, "  Prints some basic stats.\n");
534     dprintf(out, "  --proto       Print proto binary instead of string format.\n");
535     dprintf(out, "\n");
536     dprintf(out, "\n");
537     dprintf(out, "usage: adb shell cmd stats clear-puller-cache\n");
538     dprintf(out, "  Clear cached puller data.\n");
539     dprintf(out, "\n");
540     dprintf(out, "usage: adb shell cmd stats print-logs\n");
541     dprintf(out, "      Only works on eng build\n");
542 }
543 
cmd_trigger_broadcast(int out,Vector<String8> & args)544 status_t StatsService::cmd_trigger_broadcast(int out, Vector<String8>& args) {
545     string name;
546     bool good = false;
547     int uid;
548     const int argCount = args.size();
549     if (argCount == 2) {
550         // Automatically pick the UID
551         uid = IPCThreadState::self()->getCallingUid();
552         name.assign(args[1].c_str(), args[1].size());
553         good = true;
554     } else if (argCount == 3) {
555         good = getUidFromArgs(args, 1, uid);
556         if (!good) {
557             dprintf(out, "Invalid UID. Note that the metrics can only be dumped for "
558                          "other UIDs on eng or userdebug builds.\n");
559         }
560         name.assign(args[2].c_str(), args[2].size());
561     }
562     if (!good) {
563         print_cmd_help(out);
564         return UNKNOWN_ERROR;
565     }
566     ConfigKey key(uid, StrToInt64(name));
567     auto receiver = mConfigManager->GetConfigReceiver(key);
568     sp<IStatsCompanionService> sc = getStatsCompanionService();
569     if (sc == nullptr) {
570         VLOG("Could not access statsCompanion");
571     } else if (receiver == nullptr) {
572         VLOG("Could not find receiver for %s, %s", args[1].c_str(), args[2].c_str())
573     } else {
574         sc->sendDataBroadcast(receiver, mProcessor->getLastReportTimeNs(key));
575         VLOG("StatsService::trigger broadcast succeeded to %s, %s", args[1].c_str(),
576              args[2].c_str());
577     }
578 
579     return NO_ERROR;
580 }
581 
cmd_trigger_active_config_broadcast(int out,Vector<String8> & args)582 status_t StatsService::cmd_trigger_active_config_broadcast(int out, Vector<String8>& args) {
583     const int argCount = args.size();
584     int uid;
585     vector<int64_t> configIds;
586     if (argCount == 1) {
587         // Automatically pick the uid and send a broadcast that has no active configs.
588         uid = IPCThreadState::self()->getCallingUid();
589         mProcessor->GetActiveConfigs(uid, configIds);
590     } else {
591         int curArg = 1;
592         if(args[curArg].find("--uid=") == 0) {
593             string uidArgStr(args[curArg].c_str());
594             string uidStr = uidArgStr.substr(6);
595             if (!getUidFromString(uidStr.c_str(), uid)) {
596                 dprintf(out, "Invalid UID. Note that the config can only be set for "
597                              "other UIDs on eng or userdebug builds.\n");
598                 return UNKNOWN_ERROR;
599             }
600             curArg++;
601         } else {
602             uid = IPCThreadState::self()->getCallingUid();
603         }
604         if (curArg == argCount || args[curArg] != "--configs") {
605             VLOG("Reached end of args, or specify configs not set. Sending actual active configs,");
606             mProcessor->GetActiveConfigs(uid, configIds);
607         } else {
608             // Flag specified, use the given list of configs.
609             curArg++;
610             for (int i = curArg; i < argCount; i++) {
611                 char* endp;
612                 int64_t configID = strtoll(args[i].c_str(), &endp, 10);
613                 if (endp == args[i].c_str() || *endp != '\0') {
614                     dprintf(out, "Error parsing config ID.\n");
615                     return UNKNOWN_ERROR;
616                 }
617                 VLOG("Adding config id %ld", static_cast<long>(configID));
618                 configIds.push_back(configID);
619             }
620         }
621     }
622     auto receiver = mConfigManager->GetActiveConfigsChangedReceiver(uid);
623     sp<IStatsCompanionService> sc = getStatsCompanionService();
624     if (sc == nullptr) {
625         VLOG("Could not access statsCompanion");
626     } else if (receiver == nullptr) {
627         VLOG("Could not find receiver for uid %d", uid);
628     } else {
629         sc->sendActiveConfigsChangedBroadcast(receiver, configIds);
630         VLOG("StatsService::trigger active configs changed broadcast succeeded for uid %d" , uid);
631     }
632     return NO_ERROR;
633 }
634 
cmd_config(int in,int out,int err,Vector<String8> & args)635 status_t StatsService::cmd_config(int in, int out, int err, Vector<String8>& args) {
636     const int argCount = args.size();
637     if (argCount >= 2) {
638         if (args[1] == "update" || args[1] == "remove") {
639             bool good = false;
640             int uid = -1;
641             string name;
642 
643             if (argCount == 3) {
644                 // Automatically pick the UID
645                 uid = IPCThreadState::self()->getCallingUid();
646                 name.assign(args[2].c_str(), args[2].size());
647                 good = true;
648             } else if (argCount == 4) {
649                 good = getUidFromArgs(args, 2, uid);
650                 if (!good) {
651                     dprintf(err, "Invalid UID. Note that the config can only be set for "
652                                  "other UIDs on eng or userdebug builds.\n");
653                 }
654                 name.assign(args[3].c_str(), args[3].size());
655             } else if (argCount == 2 && args[1] == "remove") {
656                 good = true;
657             }
658 
659             if (!good) {
660                 // If arg parsing failed, print the help text and return an error.
661                 print_cmd_help(out);
662                 return UNKNOWN_ERROR;
663             }
664 
665             if (args[1] == "update") {
666                 char* endp;
667                 int64_t configID = strtoll(name.c_str(), &endp, 10);
668                 if (endp == name.c_str() || *endp != '\0') {
669                     dprintf(err, "Error parsing config ID.\n");
670                     return UNKNOWN_ERROR;
671                 }
672 
673                 // Read stream into buffer.
674                 string buffer;
675                 if (!android::base::ReadFdToString(in, &buffer)) {
676                     dprintf(err, "Error reading stream for StatsConfig.\n");
677                     return UNKNOWN_ERROR;
678                 }
679 
680                 // Parse buffer.
681                 StatsdConfig config;
682                 if (!config.ParseFromString(buffer)) {
683                     dprintf(err, "Error parsing proto stream for StatsConfig.\n");
684                     return UNKNOWN_ERROR;
685                 }
686 
687                 // Add / update the config.
688                 mConfigManager->UpdateConfig(ConfigKey(uid, configID), config);
689             } else {
690                 if (argCount == 2) {
691                     cmd_remove_all_configs(out);
692                 } else {
693                     // Remove the config.
694                     mConfigManager->RemoveConfig(ConfigKey(uid, StrToInt64(name)));
695                 }
696             }
697 
698             return NO_ERROR;
699         }
700     }
701     print_cmd_help(out);
702     return UNKNOWN_ERROR;
703 }
704 
cmd_dump_report(int out,const Vector<String8> & args)705 status_t StatsService::cmd_dump_report(int out, const Vector<String8>& args) {
706     if (mProcessor != nullptr) {
707         int argCount = args.size();
708         bool good = false;
709         bool proto = false;
710         bool includeCurrentBucket = false;
711         bool eraseData = true;
712         int uid;
713         string name;
714         if (!std::strcmp("--proto", args[argCount-1].c_str())) {
715             proto = true;
716             argCount -= 1;
717         }
718         if (!std::strcmp("--include_current_bucket", args[argCount-1].c_str())) {
719             includeCurrentBucket = true;
720             argCount -= 1;
721         }
722         if (!std::strcmp("--keep_data", args[argCount-1].c_str())) {
723             eraseData = false;
724             argCount -= 1;
725         }
726         if (argCount == 2) {
727             // Automatically pick the UID
728             uid = IPCThreadState::self()->getCallingUid();
729             name.assign(args[1].c_str(), args[1].size());
730             good = true;
731         } else if (argCount == 3) {
732             good = getUidFromArgs(args, 1, uid);
733             if (!good) {
734                 dprintf(out, "Invalid UID. Note that the metrics can only be dumped for "
735                              "other UIDs on eng or userdebug builds.\n");
736             }
737             name.assign(args[2].c_str(), args[2].size());
738         }
739         if (good) {
740             vector<uint8_t> data;
741             mProcessor->onDumpReport(ConfigKey(uid, StrToInt64(name)), getElapsedRealtimeNs(),
742                                      includeCurrentBucket, eraseData, ADB_DUMP,
743                                      NO_TIME_CONSTRAINTS,
744                                      &data);
745             if (proto) {
746                 for (size_t i = 0; i < data.size(); i ++) {
747                     dprintf(out, "%c", data[i]);
748                 }
749             } else {
750                 dprintf(out, "Non-proto stats data dump not currently supported.\n");
751             }
752             return android::OK;
753         } else {
754             // If arg parsing failed, print the help text and return an error.
755             print_cmd_help(out);
756             return UNKNOWN_ERROR;
757         }
758     } else {
759         dprintf(out, "Log processor does not exist...\n");
760         return UNKNOWN_ERROR;
761     }
762 }
763 
cmd_print_stats(int out,const Vector<String8> & args)764 status_t StatsService::cmd_print_stats(int out, const Vector<String8>& args) {
765     int argCount = args.size();
766     bool proto = false;
767     if (!std::strcmp("--proto", args[argCount-1].c_str())) {
768         proto = true;
769         argCount -= 1;
770     }
771     StatsdStats& statsdStats = StatsdStats::getInstance();
772     if (proto) {
773         vector<uint8_t> data;
774         statsdStats.dumpStats(&data, false); // does not reset statsdStats.
775         for (size_t i = 0; i < data.size(); i ++) {
776             dprintf(out, "%c", data[i]);
777         }
778 
779     } else {
780         vector<ConfigKey> configs = mConfigManager->GetAllConfigKeys();
781         for (const ConfigKey& key : configs) {
782             dprintf(out, "Config %s uses %zu bytes\n", key.ToString().c_str(),
783                     mProcessor->GetMetricsSize(key));
784         }
785         statsdStats.dumpStats(out);
786     }
787     return NO_ERROR;
788 }
789 
cmd_print_uid_map(int out,const Vector<String8> & args)790 status_t StatsService::cmd_print_uid_map(int out, const Vector<String8>& args) {
791     if (args.size() > 1) {
792         string pkg;
793         pkg.assign(args[1].c_str(), args[1].size());
794         auto uids = mUidMap->getAppUid(pkg);
795         dprintf(out, "%s -> [ ", pkg.c_str());
796         for (const auto& uid : uids) {
797             dprintf(out, "%d ", uid);
798         }
799         dprintf(out, "]\n");
800     } else {
801         mUidMap->printUidMap(out);
802     }
803     return NO_ERROR;
804 }
805 
cmd_write_data_to_disk(int out)806 status_t StatsService::cmd_write_data_to_disk(int out) {
807     dprintf(out, "Writing data to disk\n");
808     mProcessor->WriteDataToDisk(ADB_DUMP, NO_TIME_CONSTRAINTS);
809     return NO_ERROR;
810 }
811 
cmd_log_app_breadcrumb(int out,const Vector<String8> & args)812 status_t StatsService::cmd_log_app_breadcrumb(int out, const Vector<String8>& args) {
813     bool good = false;
814     int32_t uid;
815     int32_t label;
816     int32_t state;
817     const int argCount = args.size();
818     if (argCount == 3) {
819         // Automatically pick the UID
820         uid = IPCThreadState::self()->getCallingUid();
821         label = atoi(args[1].c_str());
822         state = atoi(args[2].c_str());
823         good = true;
824     } else if (argCount == 4) {
825         good = getUidFromArgs(args, 1, uid);
826         if (!good) {
827             dprintf(out,
828                     "Invalid UID. Note that selecting a UID for writing AppBreadcrumb can only be "
829                     "done for other UIDs on eng or userdebug builds.\n");
830         }
831         label = atoi(args[2].c_str());
832         state = atoi(args[3].c_str());
833     }
834     if (good) {
835         dprintf(out, "Logging AppBreadcrumbReported(%d, %d, %d) to statslog.\n", uid, label, state);
836         android::util::stats_write(android::util::APP_BREADCRUMB_REPORTED, uid, label, state);
837     } else {
838         print_cmd_help(out);
839         return UNKNOWN_ERROR;
840     }
841     return NO_ERROR;
842 }
843 
cmd_log_binary_push(int out,const Vector<String8> & args)844 status_t StatsService::cmd_log_binary_push(int out, const Vector<String8>& args) {
845     // Security checks are done in the sendBinaryPushStateChanged atom.
846     const int argCount = args.size();
847     if (argCount != 7 && argCount != 8) {
848         dprintf(out, "Incorrect number of argument supplied\n");
849         return UNKNOWN_ERROR;
850     }
851     android::String16 trainName = android::String16(args[1].c_str());
852     int64_t trainVersion = strtoll(args[2].c_str(), nullptr, 10);
853     int options = 0;
854     if (args[3] == "1") {
855         options = options | IStatsManager::FLAG_REQUIRE_STAGING;
856     }
857     if (args[4] == "1") {
858         options = options | IStatsManager::FLAG_ROLLBACK_ENABLED;
859     }
860     if (args[5] == "1") {
861         options = options | IStatsManager::FLAG_REQUIRE_LOW_LATENCY_MONITOR;
862     }
863     int32_t state = atoi(args[6].c_str());
864     vector<int64_t> experimentIds;
865     if (argCount == 8) {
866         vector<string> experimentIdsString = android::base::Split(string(args[7].c_str()), ",");
867         for (string experimentIdString : experimentIdsString) {
868             int64_t experimentId = strtoll(experimentIdString.c_str(), nullptr, 10);
869             experimentIds.push_back(experimentId);
870         }
871     }
872     dprintf(out, "Logging BinaryPushStateChanged\n");
873     sendBinaryPushStateChangedAtom(trainName, trainVersion, options, state, experimentIds);
874     return NO_ERROR;
875 }
876 
cmd_print_pulled_metrics(int out,const Vector<String8> & args)877 status_t StatsService::cmd_print_pulled_metrics(int out, const Vector<String8>& args) {
878     int s = atoi(args[1].c_str());
879     vector<shared_ptr<LogEvent> > stats;
880     if (mPullerManager->Pull(s, &stats)) {
881         for (const auto& it : stats) {
882             dprintf(out, "Pull from %d: %s\n", s, it->ToString().c_str());
883         }
884         dprintf(out, "Pull from %d: Received %zu elements\n", s, stats.size());
885         return NO_ERROR;
886     }
887     return UNKNOWN_ERROR;
888 }
889 
cmd_remove_all_configs(int out)890 status_t StatsService::cmd_remove_all_configs(int out) {
891     dprintf(out, "Removing all configs...\n");
892     VLOG("StatsService::cmd_remove_all_configs was called");
893     mConfigManager->RemoveAllConfigs();
894     StorageManager::deleteAllFiles(STATS_SERVICE_DIR);
895     return NO_ERROR;
896 }
897 
cmd_dump_memory_info(int out)898 status_t StatsService::cmd_dump_memory_info(int out) {
899     dprintf(out, "meminfo not available.\n");
900     return NO_ERROR;
901 }
902 
cmd_clear_puller_cache(int out)903 status_t StatsService::cmd_clear_puller_cache(int out) {
904     IPCThreadState* ipc = IPCThreadState::self();
905     VLOG("StatsService::cmd_clear_puller_cache with Pid %i, Uid %i",
906             ipc->getCallingPid(), ipc->getCallingUid());
907     if (checkCallingPermission(String16(kPermissionDump))) {
908         int cleared = mPullerManager->ForceClearPullerCache();
909         dprintf(out, "Puller removed %d cached data!\n", cleared);
910         return NO_ERROR;
911     } else {
912         return PERMISSION_DENIED;
913     }
914 }
915 
cmd_print_logs(int out,const Vector<String8> & args)916 status_t StatsService::cmd_print_logs(int out, const Vector<String8>& args) {
917     IPCThreadState* ipc = IPCThreadState::self();
918     VLOG("StatsService::cmd_print_logs with Pid %i, Uid %i", ipc->getCallingPid(),
919          ipc->getCallingUid());
920     if (checkCallingPermission(String16(kPermissionDump))) {
921         bool enabled = true;
922         if (args.size() >= 2) {
923             enabled = atoi(args[1].c_str()) != 0;
924         }
925         mProcessor->setPrintLogs(enabled);
926         return NO_ERROR;
927     } else {
928         return PERMISSION_DENIED;
929     }
930 }
931 
getUidFromArgs(const Vector<String8> & args,size_t uidArgIndex,int32_t & uid)932 bool StatsService::getUidFromArgs(const Vector<String8>& args, size_t uidArgIndex, int32_t& uid) {
933     return getUidFromString(args[uidArgIndex].c_str(), uid);
934 }
935 
getUidFromString(const char * s,int32_t & uid)936 bool StatsService::getUidFromString(const char* s, int32_t& uid) {
937     if (*s == '\0') {
938         return false;
939     }
940     char* endc = NULL;
941     int64_t longUid = strtol(s, &endc, 0);
942     if (*endc != '\0') {
943         return false;
944     }
945     int32_t goodUid = static_cast<int32_t>(longUid);
946     if (longUid < 0 || static_cast<uint64_t>(longUid) != static_cast<uid_t>(goodUid)) {
947         return false;  // It was not of uid_t type.
948     }
949     uid = goodUid;
950 
951     int32_t callingUid = IPCThreadState::self()->getCallingUid();
952     return mEngBuild // UserDebug/EngBuild are allowed to impersonate uids.
953             || (callingUid == goodUid) // Anyone can 'impersonate' themselves.
954             || (callingUid == AID_ROOT && goodUid == AID_SHELL); // ROOT can impersonate SHELL.
955 }
956 
informAllUidData(const ParcelFileDescriptor & fd)957 Status StatsService::informAllUidData(const ParcelFileDescriptor& fd) {
958     ENFORCE_UID(AID_SYSTEM);
959     // Read stream into buffer.
960     string buffer;
961     if (!android::base::ReadFdToString(fd.get(), &buffer)) {
962         return exception(Status::EX_ILLEGAL_ARGUMENT, "Failed to read all data from the pipe.");
963     }
964 
965     // Parse buffer.
966     UidData uidData;
967     if (!uidData.ParseFromString(buffer)) {
968         return exception(Status::EX_ILLEGAL_ARGUMENT, "Error parsing proto stream for UidData.");
969     }
970 
971     vector<String16> versionStrings;
972     vector<String16> installers;
973     vector<String16> packageNames;
974     vector<int32_t> uids;
975     vector<int64_t> versions;
976 
977     const auto numEntries = uidData.app_info_size();
978     versionStrings.reserve(numEntries);
979     installers.reserve(numEntries);
980     packageNames.reserve(numEntries);
981     uids.reserve(numEntries);
982     versions.reserve(numEntries);
983 
984     for (const auto& appInfo: uidData.app_info()) {
985         packageNames.emplace_back(String16(appInfo.package_name().c_str()));
986         uids.push_back(appInfo.uid());
987         versions.push_back(appInfo.version());
988         versionStrings.emplace_back(String16(appInfo.version_string().c_str()));
989         installers.emplace_back(String16(appInfo.installer().c_str()));
990     }
991 
992     mUidMap->updateMap(getElapsedRealtimeNs(),
993                        uids,
994                        versions,
995                        versionStrings,
996                        packageNames,
997                        installers);
998 
999     VLOG("StatsService::informAllUidData UidData proto parsed successfully.");
1000     return Status::ok();
1001 }
1002 
informOnePackage(const String16 & app,int32_t uid,int64_t version,const String16 & version_string,const String16 & installer)1003 Status StatsService::informOnePackage(const String16& app, int32_t uid, int64_t version,
1004                                       const String16& version_string, const String16& installer) {
1005     ENFORCE_UID(AID_SYSTEM);
1006 
1007     VLOG("StatsService::informOnePackage was called");
1008     mUidMap->updateApp(getElapsedRealtimeNs(), app, uid, version, version_string, installer);
1009     return Status::ok();
1010 }
1011 
informOnePackageRemoved(const String16 & app,int32_t uid)1012 Status StatsService::informOnePackageRemoved(const String16& app, int32_t uid) {
1013     ENFORCE_UID(AID_SYSTEM);
1014 
1015     VLOG("StatsService::informOnePackageRemoved was called");
1016     mUidMap->removeApp(getElapsedRealtimeNs(), app, uid);
1017     mConfigManager->RemoveConfigs(uid);
1018     return Status::ok();
1019 }
1020 
informAnomalyAlarmFired()1021 Status StatsService::informAnomalyAlarmFired() {
1022     ENFORCE_UID(AID_SYSTEM);
1023 
1024     VLOG("StatsService::informAnomalyAlarmFired was called");
1025     int64_t currentTimeSec = getElapsedRealtimeSec();
1026     std::unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet =
1027             mAnomalyAlarmMonitor->popSoonerThan(static_cast<uint32_t>(currentTimeSec));
1028     if (alarmSet.size() > 0) {
1029         VLOG("Found an anomaly alarm that fired.");
1030         mProcessor->onAnomalyAlarmFired(currentTimeSec * NS_PER_SEC, alarmSet);
1031     } else {
1032         VLOG("Cannot find an anomaly alarm that fired. Perhaps it was recently cancelled.");
1033     }
1034     return Status::ok();
1035 }
1036 
informAlarmForSubscriberTriggeringFired()1037 Status StatsService::informAlarmForSubscriberTriggeringFired() {
1038     ENFORCE_UID(AID_SYSTEM);
1039 
1040     VLOG("StatsService::informAlarmForSubscriberTriggeringFired was called");
1041     int64_t currentTimeSec = getElapsedRealtimeSec();
1042     std::unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet =
1043             mPeriodicAlarmMonitor->popSoonerThan(static_cast<uint32_t>(currentTimeSec));
1044     if (alarmSet.size() > 0) {
1045         VLOG("Found periodic alarm fired.");
1046         mProcessor->onPeriodicAlarmFired(currentTimeSec * NS_PER_SEC, alarmSet);
1047     } else {
1048         ALOGW("Cannot find an periodic alarm that fired. Perhaps it was recently cancelled.");
1049     }
1050     return Status::ok();
1051 }
1052 
informPollAlarmFired()1053 Status StatsService::informPollAlarmFired() {
1054     ENFORCE_UID(AID_SYSTEM);
1055 
1056     VLOG("StatsService::informPollAlarmFired was called");
1057     mProcessor->informPullAlarmFired(getElapsedRealtimeNs());
1058     VLOG("StatsService::informPollAlarmFired succeeded");
1059     return Status::ok();
1060 }
1061 
systemRunning()1062 Status StatsService::systemRunning() {
1063     ENFORCE_UID(AID_SYSTEM);
1064 
1065     // When system_server is up and running, schedule the dropbox task to run.
1066     VLOG("StatsService::systemRunning");
1067     sayHiToStatsCompanion();
1068     return Status::ok();
1069 }
1070 
informDeviceShutdown()1071 Status StatsService::informDeviceShutdown() {
1072     ENFORCE_UID(AID_SYSTEM);
1073     VLOG("StatsService::informDeviceShutdown");
1074     mProcessor->WriteDataToDisk(DEVICE_SHUTDOWN, FAST);
1075     mProcessor->SaveActiveConfigsToDisk(getElapsedRealtimeNs());
1076     return Status::ok();
1077 }
1078 
sayHiToStatsCompanion()1079 void StatsService::sayHiToStatsCompanion() {
1080     sp<IStatsCompanionService> statsCompanion = getStatsCompanionService();
1081     if (statsCompanion != nullptr) {
1082         VLOG("Telling statsCompanion that statsd is ready");
1083         statsCompanion->statsdReady();
1084     } else {
1085         VLOG("Could not access statsCompanion");
1086     }
1087 }
1088 
statsCompanionReady()1089 Status StatsService::statsCompanionReady() {
1090     ENFORCE_UID(AID_SYSTEM);
1091 
1092     VLOG("StatsService::statsCompanionReady was called");
1093     sp<IStatsCompanionService> statsCompanion = getStatsCompanionService();
1094     if (statsCompanion == nullptr) {
1095         return Status::fromExceptionCode(
1096                 Status::EX_NULL_POINTER,
1097                 "statscompanion unavailable despite it contacting statsd!");
1098     }
1099     VLOG("StatsService::statsCompanionReady linking to statsCompanion.");
1100     IInterface::asBinder(statsCompanion)->linkToDeath(this);
1101     mPullerManager->SetStatsCompanionService(statsCompanion);
1102     mAnomalyAlarmMonitor->setStatsCompanionService(statsCompanion);
1103     mPeriodicAlarmMonitor->setStatsCompanionService(statsCompanion);
1104     SubscriberReporter::getInstance().setStatsCompanionService(statsCompanion);
1105     return Status::ok();
1106 }
1107 
Startup()1108 void StatsService::Startup() {
1109     mConfigManager->Startup();
1110     mProcessor->LoadActiveConfigsFromDisk();
1111 }
1112 
Terminate()1113 void StatsService::Terminate() {
1114     ALOGI("StatsService::Terminating");
1115     if (mProcessor != nullptr) {
1116         mProcessor->WriteDataToDisk(TERMINATION_SIGNAL_RECEIVED, FAST);
1117         mProcessor->SaveActiveConfigsToDisk(getElapsedRealtimeNs());
1118     }
1119 }
1120 
1121 // Test only interface!!!
OnLogEvent(LogEvent * event)1122 void StatsService::OnLogEvent(LogEvent* event) {
1123     mProcessor->OnLogEvent(event);
1124     if (mShellSubscriber != nullptr) {
1125         mShellSubscriber->onLogEvent(*event);
1126     }
1127 }
1128 
getData(int64_t key,const String16 & packageName,vector<uint8_t> * output)1129 Status StatsService::getData(int64_t key, const String16& packageName, vector<uint8_t>* output) {
1130     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1131 
1132     IPCThreadState* ipc = IPCThreadState::self();
1133     VLOG("StatsService::getData with Pid %i, Uid %i", ipc->getCallingPid(), ipc->getCallingUid());
1134     ConfigKey configKey(ipc->getCallingUid(), key);
1135     // The dump latency does not matter here since we do not include the current bucket, we do not
1136     // need to pull any new data anyhow.
1137     mProcessor->onDumpReport(configKey, getElapsedRealtimeNs(), false /* include_current_bucket*/,
1138                              true /* erase_data */, GET_DATA_CALLED, FAST, output);
1139     return Status::ok();
1140 }
1141 
getMetadata(const String16 & packageName,vector<uint8_t> * output)1142 Status StatsService::getMetadata(const String16& packageName, vector<uint8_t>* output) {
1143     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1144 
1145     IPCThreadState* ipc = IPCThreadState::self();
1146     VLOG("StatsService::getMetadata with Pid %i, Uid %i", ipc->getCallingPid(),
1147          ipc->getCallingUid());
1148     StatsdStats::getInstance().dumpStats(output, false); // Don't reset the counters.
1149     return Status::ok();
1150 }
1151 
addConfiguration(int64_t key,const vector<uint8_t> & config,const String16 & packageName)1152 Status StatsService::addConfiguration(int64_t key, const vector <uint8_t>& config,
1153                                       const String16& packageName) {
1154     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1155 
1156     IPCThreadState* ipc = IPCThreadState::self();
1157     if (addConfigurationChecked(ipc->getCallingUid(), key, config)) {
1158         return Status::ok();
1159     } else {
1160         ALOGE("Could not parse malformatted StatsdConfig");
1161         return Status::fromExceptionCode(binder::Status::EX_ILLEGAL_ARGUMENT,
1162                                          "config does not correspond to a StatsdConfig proto");
1163     }
1164 }
1165 
addConfigurationChecked(int uid,int64_t key,const vector<uint8_t> & config)1166 bool StatsService::addConfigurationChecked(int uid, int64_t key, const vector<uint8_t>& config) {
1167     ConfigKey configKey(uid, key);
1168     StatsdConfig cfg;
1169     if (config.size() > 0) {  // If the config is empty, skip parsing.
1170         if (!cfg.ParseFromArray(&config[0], config.size())) {
1171             return false;
1172         }
1173     }
1174     mConfigManager->UpdateConfig(configKey, cfg);
1175     return true;
1176 }
1177 
removeDataFetchOperation(int64_t key,const String16 & packageName)1178 Status StatsService::removeDataFetchOperation(int64_t key, const String16& packageName) {
1179     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1180 
1181     IPCThreadState* ipc = IPCThreadState::self();
1182     ConfigKey configKey(ipc->getCallingUid(), key);
1183     mConfigManager->RemoveConfigReceiver(configKey);
1184     return Status::ok();
1185 }
1186 
setDataFetchOperation(int64_t key,const sp<android::IBinder> & intentSender,const String16 & packageName)1187 Status StatsService::setDataFetchOperation(int64_t key,
1188                                            const sp<android::IBinder>& intentSender,
1189                                            const String16& packageName) {
1190     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1191 
1192     IPCThreadState* ipc = IPCThreadState::self();
1193     ConfigKey configKey(ipc->getCallingUid(), key);
1194     mConfigManager->SetConfigReceiver(configKey, intentSender);
1195     if (StorageManager::hasConfigMetricsReport(configKey)) {
1196         VLOG("StatsService::setDataFetchOperation marking configKey %s to dump reports on disk",
1197              configKey.ToString().c_str());
1198         mProcessor->noteOnDiskData(configKey);
1199     }
1200     return Status::ok();
1201 }
1202 
setActiveConfigsChangedOperation(const sp<android::IBinder> & intentSender,const String16 & packageName,vector<int64_t> * output)1203 Status StatsService::setActiveConfigsChangedOperation(const sp<android::IBinder>& intentSender,
1204                                                       const String16& packageName,
1205                                                       vector<int64_t>* output) {
1206     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1207 
1208     IPCThreadState* ipc = IPCThreadState::self();
1209     int uid = ipc->getCallingUid();
1210     mConfigManager->SetActiveConfigsChangedReceiver(uid, intentSender);
1211     if (output != nullptr) {
1212         mProcessor->GetActiveConfigs(uid, *output);
1213     } else {
1214         ALOGW("StatsService::setActiveConfigsChanged output was nullptr");
1215     }
1216     return Status::ok();
1217 }
1218 
removeActiveConfigsChangedOperation(const String16 & packageName)1219 Status StatsService::removeActiveConfigsChangedOperation(const String16& packageName) {
1220     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1221 
1222     IPCThreadState* ipc = IPCThreadState::self();
1223     mConfigManager->RemoveActiveConfigsChangedReceiver(ipc->getCallingUid());
1224     return Status::ok();
1225 }
1226 
removeConfiguration(int64_t key,const String16 & packageName)1227 Status StatsService::removeConfiguration(int64_t key, const String16& packageName) {
1228     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1229 
1230     IPCThreadState* ipc = IPCThreadState::self();
1231     ConfigKey configKey(ipc->getCallingUid(), key);
1232     mConfigManager->RemoveConfig(configKey);
1233     SubscriberReporter::getInstance().removeConfig(configKey);
1234     return Status::ok();
1235 }
1236 
setBroadcastSubscriber(int64_t configId,int64_t subscriberId,const sp<android::IBinder> & intentSender,const String16 & packageName)1237 Status StatsService::setBroadcastSubscriber(int64_t configId,
1238                                             int64_t subscriberId,
1239                                             const sp<android::IBinder>& intentSender,
1240                                             const String16& packageName) {
1241     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1242 
1243     VLOG("StatsService::setBroadcastSubscriber called.");
1244     IPCThreadState* ipc = IPCThreadState::self();
1245     ConfigKey configKey(ipc->getCallingUid(), configId);
1246     SubscriberReporter::getInstance()
1247             .setBroadcastSubscriber(configKey, subscriberId, intentSender);
1248     return Status::ok();
1249 }
1250 
unsetBroadcastSubscriber(int64_t configId,int64_t subscriberId,const String16 & packageName)1251 Status StatsService::unsetBroadcastSubscriber(int64_t configId,
1252                                               int64_t subscriberId,
1253                                               const String16& packageName) {
1254     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1255 
1256     VLOG("StatsService::unsetBroadcastSubscriber called.");
1257     IPCThreadState* ipc = IPCThreadState::self();
1258     ConfigKey configKey(ipc->getCallingUid(), configId);
1259     SubscriberReporter::getInstance()
1260             .unsetBroadcastSubscriber(configKey, subscriberId);
1261     return Status::ok();
1262 }
1263 
sendAppBreadcrumbAtom(int32_t label,int32_t state)1264 Status StatsService::sendAppBreadcrumbAtom(int32_t label, int32_t state) {
1265     // Permission check not necessary as it's meant for applications to write to
1266     // statsd.
1267     android::util::stats_write(util::APP_BREADCRUMB_REPORTED,
1268                                IPCThreadState::self()->getCallingUid(), label,
1269                                state);
1270     return Status::ok();
1271 }
1272 
registerPullerCallback(int32_t atomTag,const sp<android::os::IStatsPullerCallback> & pullerCallback,const String16 & packageName)1273 Status StatsService::registerPullerCallback(int32_t atomTag,
1274         const sp<android::os::IStatsPullerCallback>& pullerCallback,
1275         const String16& packageName) {
1276     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1277 
1278     VLOG("StatsService::registerPullerCallback called.");
1279     mPullerManager->RegisterPullerCallback(atomTag, pullerCallback);
1280     return Status::ok();
1281 }
1282 
unregisterPullerCallback(int32_t atomTag,const String16 & packageName)1283 Status StatsService::unregisterPullerCallback(int32_t atomTag, const String16& packageName) {
1284     ENFORCE_DUMP_AND_USAGE_STATS(packageName);
1285 
1286     VLOG("StatsService::unregisterPullerCallback called.");
1287     mPullerManager->UnregisterPullerCallback(atomTag);
1288     return Status::ok();
1289 }
1290 
sendBinaryPushStateChangedAtom(const android::String16 & trainNameIn,const int64_t trainVersionCodeIn,const int options,const int32_t state,const std::vector<int64_t> & experimentIdsIn)1291 Status StatsService::sendBinaryPushStateChangedAtom(const android::String16& trainNameIn,
1292                                                     const int64_t trainVersionCodeIn,
1293                                                     const int options,
1294                                                     const int32_t state,
1295                                                     const std::vector<int64_t>& experimentIdsIn) {
1296     // Note: We skip the usage stats op check here since we do not have a package name.
1297     // This is ok since we are overloading the usage_stats permission.
1298     // This method only sends data, it does not receive it.
1299     pid_t pid = IPCThreadState::self()->getCallingPid();
1300     uid_t uid = IPCThreadState::self()->getCallingUid();
1301     // Root, system, and shell always have access
1302     if (uid != AID_ROOT && uid != AID_SYSTEM && uid != AID_SHELL) {
1303         // Caller must be granted these permissions
1304         if (!checkCallingPermission(String16(kPermissionDump))) {
1305             return exception(binder::Status::EX_SECURITY,
1306                              StringPrintf("UID %d / PID %d lacks permission %s", uid, pid,
1307                                           kPermissionDump));
1308         }
1309         if (!checkCallingPermission(String16(kPermissionUsage))) {
1310             return exception(binder::Status::EX_SECURITY,
1311                              StringPrintf("UID %d / PID %d lacks permission %s", uid, pid,
1312                                           kPermissionUsage));
1313         }
1314     }
1315 
1316     bool readTrainInfoSuccess = false;
1317     InstallTrainInfo trainInfoOnDisk;
1318     readTrainInfoSuccess = StorageManager::readTrainInfo(trainInfoOnDisk);
1319 
1320     bool resetExperimentIds = false;
1321     int64_t trainVersionCode = trainVersionCodeIn;
1322     std::string trainNameUtf8 = std::string(String8(trainNameIn).string());
1323     if (readTrainInfoSuccess) {
1324         // Keep the old train version if we received an empty version.
1325         if (trainVersionCodeIn == -1) {
1326             trainVersionCode = trainInfoOnDisk.trainVersionCode;
1327         } else if (trainVersionCodeIn != trainInfoOnDisk.trainVersionCode) {
1328         // Reset experiment ids if we receive a new non-empty train version.
1329             resetExperimentIds = true;
1330         }
1331 
1332         // Keep the old train name if we received an empty train name.
1333         if (trainNameUtf8.size() == 0) {
1334             trainNameUtf8 = trainInfoOnDisk.trainName;
1335         } else if (trainNameUtf8 != trainInfoOnDisk.trainName) {
1336             // Reset experiment ids if we received a new valid train name.
1337             resetExperimentIds = true;
1338         }
1339 
1340         // Reset if we received a different experiment id.
1341         if (!experimentIdsIn.empty() &&
1342                 (trainInfoOnDisk.experimentIds.empty() ||
1343                  experimentIdsIn[0] != trainInfoOnDisk.experimentIds[0])) {
1344             resetExperimentIds = true;
1345         }
1346     }
1347 
1348     // Find the right experiment IDs
1349     std::vector<int64_t> experimentIds;
1350     if (resetExperimentIds || !readTrainInfoSuccess) {
1351         experimentIds = experimentIdsIn;
1352     } else {
1353         experimentIds = trainInfoOnDisk.experimentIds;
1354     }
1355 
1356     if (!experimentIds.empty()) {
1357         int64_t firstId = experimentIds[0];
1358         switch (state) {
1359             case android::util::BINARY_PUSH_STATE_CHANGED__STATE__INSTALL_SUCCESS:
1360                 experimentIds.push_back(firstId + 1);
1361                 break;
1362             case android::util::BINARY_PUSH_STATE_CHANGED__STATE__INSTALLER_ROLLBACK_INITIATED:
1363                 experimentIds.push_back(firstId + 2);
1364                 break;
1365             case android::util::BINARY_PUSH_STATE_CHANGED__STATE__INSTALLER_ROLLBACK_SUCCESS:
1366                 experimentIds.push_back(firstId + 3);
1367                 break;
1368         }
1369     }
1370 
1371     // Flatten the experiment IDs to proto
1372     vector<uint8_t> experimentIdsProtoBuffer;
1373     writeExperimentIdsToProto(experimentIds, &experimentIdsProtoBuffer);
1374     StorageManager::writeTrainInfo(trainVersionCode, trainNameUtf8, state, experimentIds);
1375 
1376     userid_t userId = multiuser_get_user_id(uid);
1377     bool requiresStaging = options & IStatsManager::FLAG_REQUIRE_STAGING;
1378     bool rollbackEnabled = options & IStatsManager::FLAG_ROLLBACK_ENABLED;
1379     bool requiresLowLatencyMonitor = options & IStatsManager::FLAG_REQUIRE_LOW_LATENCY_MONITOR;
1380     LogEvent event(trainNameUtf8, trainVersionCode, requiresStaging, rollbackEnabled,
1381                    requiresLowLatencyMonitor, state, experimentIdsProtoBuffer, userId);
1382     mProcessor->OnLogEvent(&event);
1383     return Status::ok();
1384 }
1385 
sendWatchdogRollbackOccurredAtom(const int32_t rollbackTypeIn,const android::String16 & packageNameIn,const int64_t packageVersionCodeIn)1386 Status StatsService::sendWatchdogRollbackOccurredAtom(const int32_t rollbackTypeIn,
1387                                                       const android::String16& packageNameIn,
1388                                                       const int64_t packageVersionCodeIn) {
1389     // Note: We skip the usage stats op check here since we do not have a package name.
1390     // This is ok since we are overloading the usage_stats permission.
1391     // This method only sends data, it does not receive it.
1392     pid_t pid = IPCThreadState::self()->getCallingPid();
1393     uid_t uid = IPCThreadState::self()->getCallingUid();
1394     // Root, system, and shell always have access
1395     if (uid != AID_ROOT && uid != AID_SYSTEM && uid != AID_SHELL) {
1396         // Caller must be granted these permissions
1397         if (!checkCallingPermission(String16(kPermissionDump))) {
1398             return exception(binder::Status::EX_SECURITY,
1399                              StringPrintf("UID %d / PID %d lacks permission %s", uid, pid,
1400                                           kPermissionDump));
1401         }
1402         if (!checkCallingPermission(String16(kPermissionUsage))) {
1403             return exception(binder::Status::EX_SECURITY,
1404                              StringPrintf("UID %d / PID %d lacks permission %s", uid, pid,
1405                                           kPermissionUsage));
1406         }
1407     }
1408 
1409     android::util::stats_write(android::util::WATCHDOG_ROLLBACK_OCCURRED,
1410             rollbackTypeIn, String8(packageNameIn).string(), packageVersionCodeIn);
1411 
1412     // Fast return to save disk read.
1413     if (rollbackTypeIn != android::util::WATCHDOG_ROLLBACK_OCCURRED__ROLLBACK_TYPE__ROLLBACK_SUCCESS
1414             && rollbackTypeIn !=
1415                     android::util::WATCHDOG_ROLLBACK_OCCURRED__ROLLBACK_TYPE__ROLLBACK_INITIATE) {
1416         return Status::ok();
1417     }
1418 
1419     bool readTrainInfoSuccess = false;
1420     InstallTrainInfo trainInfoOnDisk;
1421     readTrainInfoSuccess = StorageManager::readTrainInfo(trainInfoOnDisk);
1422 
1423     if (!readTrainInfoSuccess) {
1424         return Status::ok();
1425     }
1426     std::vector<int64_t> experimentIds = trainInfoOnDisk.experimentIds;
1427     if (experimentIds.empty()) {
1428         return Status::ok();
1429     }
1430     switch (rollbackTypeIn) {
1431         case android::util::WATCHDOG_ROLLBACK_OCCURRED__ROLLBACK_TYPE__ROLLBACK_INITIATE:
1432             experimentIds.push_back(experimentIds[0] + 4);
1433             break;
1434         case android::util::WATCHDOG_ROLLBACK_OCCURRED__ROLLBACK_TYPE__ROLLBACK_SUCCESS:
1435             experimentIds.push_back(experimentIds[0] + 5);
1436             break;
1437     }
1438     StorageManager::writeTrainInfo(trainInfoOnDisk.trainVersionCode, trainInfoOnDisk.trainName,
1439             trainInfoOnDisk.status, experimentIds);
1440     return Status::ok();
1441 }
1442 
1443 
getRegisteredExperimentIds(std::vector<int64_t> * experimentIdsOut)1444 Status StatsService::getRegisteredExperimentIds(std::vector<int64_t>* experimentIdsOut) {
1445     uid_t uid = IPCThreadState::self()->getCallingUid();
1446 
1447     // Caller must be granted these permissions
1448     if (!checkCallingPermission(String16(kPermissionDump))) {
1449         return exception(binder::Status::EX_SECURITY,
1450                          StringPrintf("UID %d lacks permission %s", uid, kPermissionDump));
1451     }
1452     if (!checkCallingPermission(String16(kPermissionUsage))) {
1453         return exception(binder::Status::EX_SECURITY,
1454                          StringPrintf("UID %d lacks permission %s", uid, kPermissionUsage));
1455     }
1456     // TODO: add verifier permission
1457 
1458     // Read the latest train info
1459     InstallTrainInfo trainInfo;
1460     if (!StorageManager::readTrainInfo(trainInfo)) {
1461         // No train info means no experiment IDs, return an empty list
1462         experimentIdsOut->clear();
1463         return Status::ok();
1464     }
1465 
1466     // Copy the experiment IDs to the out vector
1467     experimentIdsOut->assign(trainInfo.experimentIds.begin(), trainInfo.experimentIds.end());
1468     return Status::ok();
1469 }
1470 
reportSpeakerImpedance(const SpeakerImpedance & speakerImpedance)1471 hardware::Return<void> StatsService::reportSpeakerImpedance(
1472         const SpeakerImpedance& speakerImpedance) {
1473     android::util::stats_write(android::util::SPEAKER_IMPEDANCE_REPORTED,
1474             speakerImpedance.speakerLocation, speakerImpedance.milliOhms);
1475 
1476     return hardware::Void();
1477 }
1478 
reportHardwareFailed(const HardwareFailed & hardwareFailed)1479 hardware::Return<void> StatsService::reportHardwareFailed(const HardwareFailed& hardwareFailed) {
1480     android::util::stats_write(android::util::HARDWARE_FAILED, int32_t(hardwareFailed.hardwareType),
1481             hardwareFailed.hardwareLocation, int32_t(hardwareFailed.errorCode));
1482 
1483     return hardware::Void();
1484 }
1485 
reportPhysicalDropDetected(const PhysicalDropDetected & physicalDropDetected)1486 hardware::Return<void> StatsService::reportPhysicalDropDetected(
1487         const PhysicalDropDetected& physicalDropDetected) {
1488     android::util::stats_write(android::util::PHYSICAL_DROP_DETECTED,
1489             int32_t(physicalDropDetected.confidencePctg), physicalDropDetected.accelPeak,
1490             physicalDropDetected.freefallDuration);
1491 
1492     return hardware::Void();
1493 }
1494 
reportChargeCycles(const ChargeCycles & chargeCycles)1495 hardware::Return<void> StatsService::reportChargeCycles(const ChargeCycles& chargeCycles) {
1496     std::vector<int32_t> buckets = chargeCycles.cycleBucket;
1497     int initialSize = buckets.size();
1498     for (int i = 0; i < 10 - initialSize; i++) {
1499         buckets.push_back(-1); // Push -1 for buckets that do not exist.
1500     }
1501     android::util::stats_write(android::util::CHARGE_CYCLES_REPORTED, buckets[0], buckets[1],
1502             buckets[2], buckets[3], buckets[4], buckets[5], buckets[6], buckets[7], buckets[8],
1503             buckets[9]);
1504 
1505     return hardware::Void();
1506 }
1507 
reportBatteryHealthSnapshot(const BatteryHealthSnapshotArgs & batteryHealthSnapshotArgs)1508 hardware::Return<void> StatsService::reportBatteryHealthSnapshot(
1509         const BatteryHealthSnapshotArgs& batteryHealthSnapshotArgs) {
1510     android::util::stats_write(android::util::BATTERY_HEALTH_SNAPSHOT,
1511             int32_t(batteryHealthSnapshotArgs.type), batteryHealthSnapshotArgs.temperatureDeciC,
1512             batteryHealthSnapshotArgs.voltageMicroV, batteryHealthSnapshotArgs.currentMicroA,
1513             batteryHealthSnapshotArgs.openCircuitVoltageMicroV,
1514             batteryHealthSnapshotArgs.resistanceMicroOhm, batteryHealthSnapshotArgs.levelPercent);
1515 
1516     return hardware::Void();
1517 }
1518 
reportSlowIo(const SlowIo & slowIo)1519 hardware::Return<void> StatsService::reportSlowIo(const SlowIo& slowIo) {
1520     android::util::stats_write(android::util::SLOW_IO, int32_t(slowIo.operation), slowIo.count);
1521 
1522     return hardware::Void();
1523 }
1524 
reportBatteryCausedShutdown(const BatteryCausedShutdown & batteryCausedShutdown)1525 hardware::Return<void> StatsService::reportBatteryCausedShutdown(
1526         const BatteryCausedShutdown& batteryCausedShutdown) {
1527     android::util::stats_write(android::util::BATTERY_CAUSED_SHUTDOWN,
1528             batteryCausedShutdown.voltageMicroV);
1529 
1530     return hardware::Void();
1531 }
1532 
reportUsbPortOverheatEvent(const UsbPortOverheatEvent & usbPortOverheatEvent)1533 hardware::Return<void> StatsService::reportUsbPortOverheatEvent(
1534         const UsbPortOverheatEvent& usbPortOverheatEvent) {
1535     android::util::stats_write(android::util::USB_PORT_OVERHEAT_EVENT_REPORTED,
1536             usbPortOverheatEvent.plugTemperatureDeciC, usbPortOverheatEvent.maxTemperatureDeciC,
1537             usbPortOverheatEvent.timeToOverheat, usbPortOverheatEvent.timeToHysteresis,
1538             usbPortOverheatEvent.timeToInactive);
1539 
1540     return hardware::Void();
1541 }
1542 
reportSpeechDspStat(const SpeechDspStat & speechDspStat)1543 hardware::Return<void> StatsService::reportSpeechDspStat(
1544         const SpeechDspStat& speechDspStat) {
1545     android::util::stats_write(android::util::SPEECH_DSP_STAT_REPORTED,
1546             speechDspStat.totalUptimeMillis, speechDspStat.totalDowntimeMillis,
1547             speechDspStat.totalCrashCount, speechDspStat.totalRecoverCount);
1548 
1549     return hardware::Void();
1550 }
1551 
reportVendorAtom(const VendorAtom & vendorAtom)1552 hardware::Return<void> StatsService::reportVendorAtom(const VendorAtom& vendorAtom) {
1553     std::string reverseDomainName = (std::string) vendorAtom.reverseDomainName;
1554     if (vendorAtom.atomId < 100000 || vendorAtom.atomId >= 200000) {
1555         ALOGE("Atom ID %ld is not a valid vendor atom ID", (long) vendorAtom.atomId);
1556         return hardware::Void();
1557     }
1558     if (reverseDomainName.length() > 50) {
1559         ALOGE("Vendor atom reverse domain name %s is too long.", reverseDomainName.c_str());
1560         return hardware::Void();
1561     }
1562     LogEvent event(getWallClockSec() * NS_PER_SEC, getElapsedRealtimeNs(), vendorAtom);
1563     mProcessor->OnLogEvent(&event);
1564 
1565     return hardware::Void();
1566 }
1567 
binderDied(const wp<IBinder> & who)1568 void StatsService::binderDied(const wp <IBinder>& who) {
1569     ALOGW("statscompanion service died");
1570     StatsdStats::getInstance().noteSystemServerRestart(getWallClockSec());
1571     if (mProcessor != nullptr) {
1572         ALOGW("Reset statsd upon system server restarts.");
1573         int64_t systemServerRestartNs = getElapsedRealtimeNs();
1574         ProtoOutputStream proto;
1575         mProcessor->WriteActiveConfigsToProtoOutputStream(systemServerRestartNs,
1576                 STATSCOMPANION_DIED, &proto);
1577 
1578         mProcessor->WriteDataToDisk(STATSCOMPANION_DIED, FAST);
1579         mProcessor->resetConfigs();
1580 
1581         std::string serializedActiveConfigs;
1582         if (proto.serializeToString(&serializedActiveConfigs)) {
1583             ActiveConfigList activeConfigs;
1584             if (activeConfigs.ParseFromString(serializedActiveConfigs)) {
1585                 mProcessor->SetConfigsActiveState(activeConfigs, systemServerRestartNs);
1586             }
1587         }
1588     }
1589     mAnomalyAlarmMonitor->setStatsCompanionService(nullptr);
1590     mPeriodicAlarmMonitor->setStatsCompanionService(nullptr);
1591     SubscriberReporter::getInstance().setStatsCompanionService(nullptr);
1592     mPullerManager->SetStatsCompanionService(nullptr);
1593 }
1594 
1595 }  // namespace statsd
1596 }  // namespace os
1597 }  // namespace android
1598