OSDN Git Service

Add UID and Service for Secure Element Application
[android-x86/frameworks-base.git] / services / core / java / com / android / server / am / ActivityManagerService.java
index dce0c38..e944326 100644 (file)
@@ -63,6 +63,7 @@ import static android.os.Process.ROOT_UID;
 import static android.os.Process.SCHED_FIFO;
 import static android.os.Process.SCHED_OTHER;
 import static android.os.Process.SCHED_RESET_ON_FORK;
+import static android.os.Process.SE_UID;
 import static android.os.Process.SHELL_UID;
 import static android.os.Process.SIGNAL_QUIT;
 import static android.os.Process.SIGNAL_USR1;
@@ -200,6 +201,7 @@ import android.app.ActivityManager.StackInfo;
 import android.app.ActivityManager.TaskSnapshot;
 import android.app.ActivityManager.TaskThumbnailInfo;
 import android.app.ActivityManagerInternal;
+import android.app.ActivityManagerInternal.ScreenObserver;
 import android.app.ActivityManagerInternal.SleepToken;
 import android.app.ActivityOptions;
 import android.app.ActivityThread;
@@ -1492,6 +1494,14 @@ public class ActivityManagerService extends IActivityManager.Stub
     String mProfileApp = null;
     ProcessRecord mProfileProc = null;
     ProfilerInfo mProfilerInfo = null;
+
+    /**
+     * Stores a map of process name -> agent string. When a process is started and mAgentAppMap
+     * is not null, this map is checked and the mapped agent installed during bind-time. Note:
+     * A non-null agent in mProfileInfo overrides this.
+     */
+    private @Nullable Map<String, String> mAppAgentMap = null;
+
     int mProfileType = 0;
     final ProcessMap<Pair<Long, String>> mMemWatchProcesses = new ProcessMap<>();
     String mMemWatchDumpProcName;
@@ -1548,6 +1558,8 @@ public class ActivityManagerService extends IActivityManager.Stub
         }
     }
 
+    final List<ScreenObserver> mScreenObservers = new ArrayList<>();
+
     final RemoteCallbackList<IProcessObserver> mProcessObservers = new RemoteCallbackList<>();
     ProcessChangeItem[] mActiveProcessChanges = new ProcessChangeItem[5];
 
@@ -1689,6 +1701,8 @@ public class ActivityManagerService extends IActivityManager.Stub
     static final int PUSH_TEMP_WHITELIST_UI_MSG = 68;
     static final int SERVICE_FOREGROUND_CRASH_MSG = 69;
     static final int DISPATCH_OOM_ADJ_OBSERVER_MSG = 70;
+    static final int DISPATCH_SCREEN_AWAKE_MSG = 71;
+    static final int DISPATCH_SCREEN_KEYGUARD_MSG = 72;
     static final int START_USER_SWITCH_FG_MSG = 712;
     static final int NOTIFY_VR_KEYGUARD_MSG = 74;
 
@@ -2412,11 +2426,17 @@ public class ActivityManagerService extends IActivityManager.Stub
                     }
                 }
             } break;
-            case NOTIFY_VR_SLEEPING_MSG: {
-                notifyVrManagerOfSleepState(msg.arg1 != 0);
+            case DISPATCH_SCREEN_AWAKE_MSG: {
+                final boolean isAwake = msg.arg1 != 0;
+                for (int i = mScreenObservers.size() - 1; i >= 0; i--) {
+                    mScreenObservers.get(i).onAwakeStateChanged(isAwake);
+                }
             } break;
-            case NOTIFY_VR_KEYGUARD_MSG: {
-                notifyVrManagerOfKeyguardState(msg.arg1 != 0);
+            case DISPATCH_SCREEN_KEYGUARD_MSG: {
+                final boolean isShowing = msg.arg1 != 0;
+                for (int i = mScreenObservers.size() - 1; i >= 0; i--) {
+                    mScreenObservers.get(i).onKeyguardStateChanged(isShowing);
+                }
             } break;
             case HANDLE_TRUST_STORAGE_UPDATE_MSG: {
                 synchronized (ActivityManagerService.this) {
@@ -3260,32 +3280,6 @@ public class ActivityManagerService extends IActivityManager.Stub
                 mHandler.obtainMessage(VR_MODE_CHANGE_MSG, 0, 0, r));
     }
 
-    private void sendNotifyVrManagerOfSleepState(boolean isSleeping) {
-        mHandler.sendMessage(
-                mHandler.obtainMessage(NOTIFY_VR_SLEEPING_MSG, isSleeping ? 1 : 0, 0));
-    }
-
-    private void notifyVrManagerOfSleepState(boolean isSleeping) {
-        final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);
-        if (vrService == null) {
-            return;
-        }
-        vrService.onSleepStateChanged(isSleeping);
-    }
-
-    private void sendNotifyVrManagerOfKeyguardState(boolean isShowing) {
-        mHandler.sendMessage(
-                mHandler.obtainMessage(NOTIFY_VR_KEYGUARD_MSG, isShowing ? 1 : 0, 0));
-    }
-
-    private void notifyVrManagerOfKeyguardState(boolean isShowing) {
-        final VrManagerInternal vrService = LocalServices.getService(VrManagerInternal.class);
-        if (vrService == null) {
-            return;
-        }
-        vrService.onKeyguardStateChanged(isShowing);
-    }
-
     final void showAskCompatModeDialogLocked(ActivityRecord r) {
         Message msg = Message.obtain();
         msg.what = SHOW_COMPAT_MODE_DIALOG_UI_MSG;
@@ -3892,6 +3886,12 @@ public class ActivityManagerService extends IActivityManager.Stub
                 runtimeFlags |= Zygote.ONLY_USE_SYSTEM_OAT_FILES;
             }
 
+            if (app.info.isAllowedToUseHiddenApi()) {
+                // This app is allowed to use undocumented and private APIs. Set
+                // up its runtime with the appropriate flag.
+                runtimeFlags |= Zygote.DISABLE_HIDDEN_API_CHECKS;
+            }
+
             String invokeWith = null;
             if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
                 // Debuggable apps may include a wrapper script with their library directory.
@@ -7026,18 +7026,6 @@ public class ActivityManagerService extends IActivityManager.Stub
                 }
             }
 
-            ProfilerInfo profilerInfo = null;
-            String agent = null;
-            if (mProfileApp != null && mProfileApp.equals(processName)) {
-                mProfileProc = app;
-                profilerInfo = (mProfilerInfo != null && mProfilerInfo.profileFile != null) ?
-                        new ProfilerInfo(mProfilerInfo) : null;
-                agent = mProfilerInfo != null ? mProfilerInfo.agent : null;
-            } else if (app.instr != null && app.instr.mProfileFile != null) {
-                profilerInfo = new ProfilerInfo(app.instr.mProfileFile, null, 0, false, false,
-                        null);
-            }
-
             boolean enableTrackAllocation = false;
             if (mTrackAllocationApp != null && mTrackAllocationApp.equals(processName)) {
                 enableTrackAllocation = true;
@@ -7062,6 +7050,39 @@ public class ActivityManagerService extends IActivityManager.Stub
             ApplicationInfo appInfo = app.instr != null ? app.instr.mTargetInfo : app.info;
             app.compat = compatibilityInfoForPackageLocked(appInfo);
 
+            ProfilerInfo profilerInfo = null;
+            String preBindAgent = null;
+            if (mProfileApp != null && mProfileApp.equals(processName)) {
+                mProfileProc = app;
+                if (mProfilerInfo != null) {
+                    // Send a profiler info object to the app if either a file is given, or
+                    // an agent should be loaded at bind-time.
+                    boolean needsInfo = mProfilerInfo.profileFile != null
+                            || mProfilerInfo.attachAgentDuringBind;
+                    profilerInfo = needsInfo ? new ProfilerInfo(mProfilerInfo) : null;
+                    if (mProfilerInfo.agent != null) {
+                        preBindAgent = mProfilerInfo.agent;
+                    }
+                }
+            } else if (app.instr != null && app.instr.mProfileFile != null) {
+                profilerInfo = new ProfilerInfo(app.instr.mProfileFile, null, 0, false, false,
+                        null, false);
+            }
+            if (mAppAgentMap != null && mAppAgentMap.containsKey(processName)) {
+                // We need to do a debuggable check here. See setAgentApp for why the check is
+                // postponed to here.
+                if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
+                    String agent = mAppAgentMap.get(processName);
+                    // Do not overwrite already requested agent.
+                    if (profilerInfo == null) {
+                        profilerInfo = new ProfilerInfo(null, null, 0, false, false,
+                                mAppAgentMap.get(processName), true);
+                    } else if (profilerInfo.agent == null) {
+                        profilerInfo = profilerInfo.setAgent(mAppAgentMap.get(processName), true);
+                    }
+                }
+            }
+
             if (profilerInfo != null && profilerInfo.profileFd != null) {
                 profilerInfo.profileFd = profilerInfo.profileFd.dup();
             }
@@ -7102,8 +7123,8 @@ public class ActivityManagerService extends IActivityManager.Stub
 
             // If we were asked to attach an agent on startup, do so now, before we're binding
             // application code.
-            if (agent != null) {
-                thread.attachAgent(agent);
+            if (preBindAgent != null) {
+                thread.attachAgent(preBindAgent);
             }
 
             checkTime(startTime, "attachApplicationLocked: immediately before bindApplication");
@@ -12497,7 +12518,8 @@ public class ActivityManagerService extends IActivityManager.Stub
             if (wasAwake != isAwake) {
                 // Also update state in a special way for running foreground services UI.
                 mServices.updateScreenStateLocked(isAwake);
-                sendNotifyVrManagerOfSleepState(!isAwake);
+                mHandler.obtainMessage(DISPATCH_SCREEN_AWAKE_MSG, isAwake ? 1 : 0, 0)
+                        .sendToTarget();
             }
         }
     }
@@ -12650,7 +12672,9 @@ public class ActivityManagerService extends IActivityManager.Stub
                 Binder.restoreCallingIdentity(ident);
             }
         }
-        sendNotifyVrManagerOfKeyguardState(showing);
+
+        mHandler.obtainMessage(DISPATCH_SCREEN_KEYGUARD_MSG, showing ? 1 : 0, 0)
+                .sendToTarget();
     }
 
     @Override
@@ -12792,6 +12816,52 @@ public class ActivityManagerService extends IActivityManager.Stub
         }
     }
 
+    /**
+     * Set or remove an agent to be run whenever an app with the given process name starts.
+     *
+     * This method will not check whether the given process name matches a debuggable app. That
+     * would require scanning all current packages, and a rescan when new packages are installed
+     * or updated.
+     *
+     * Instead, do the check when an application is started and matched to a stored agent.
+     *
+     * @param packageName the process name of the app.
+     * @param agent the agent string to be used, or null to remove any previously set agent.
+     */
+    @Override
+    public void setAgentApp(@NonNull String packageName, @Nullable String agent) {
+        synchronized (this) {
+            // note: hijacking SET_ACTIVITY_WATCHER, but should be changed to
+            // its own permission.
+            if (checkCallingPermission(
+                    android.Manifest.permission.SET_ACTIVITY_WATCHER) !=
+                        PackageManager.PERMISSION_GRANTED) {
+                throw new SecurityException(
+                        "Requires permission " + android.Manifest.permission.SET_ACTIVITY_WATCHER);
+            }
+
+            if (agent == null) {
+                if (mAppAgentMap != null) {
+                    mAppAgentMap.remove(packageName);
+                    if (mAppAgentMap.isEmpty()) {
+                        mAppAgentMap = null;
+                    }
+                }
+            } else {
+                if (mAppAgentMap == null) {
+                    mAppAgentMap = new HashMap<>();
+                }
+                if (mAppAgentMap.size() >= 100) {
+                    // Limit the size of the map, to avoid OOMEs.
+                    Slog.e(TAG, "App agent map has too many entries, cannot add " + packageName
+                            + "/" + agent);
+                    return;
+                }
+                mAppAgentMap.put(packageName, agent);
+            }
+        }
+    }
+
     void setTrackAllocationApp(ApplicationInfo app, String processName) {
         synchronized (this) {
             boolean isDebuggable = "1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"));
@@ -19189,6 +19259,7 @@ public class ActivityManagerService extends IActivityManager.Stub
             case PHONE_UID:
             case BLUETOOTH_UID:
             case NFC_UID:
+            case SE_UID:
                 isCallerSystem = true;
                 break;
             default:
@@ -24258,6 +24329,11 @@ public class ActivityManagerService extends IActivityManager.Stub
                 }
             }
         }
+
+        @Override
+        public void registerScreenObserver(ScreenObserver observer) {
+            mScreenObservers.add(observer);
+        }
     }
 
     /**