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files under frameworks/native/data/etc/ defined various feature
adb shell dumpsys package android.content.cts
adb shell cat /data/system/packages.xml
aapt d permissions out/host/linux-x86/cts/android-cts/testcases/CtsContentTestCases.apk
./frameworks/base/core/java/android/content/pm/PackageParser.java
frameworks/base/core/java/android/content/pm/PackageManager.java:3245: public abstract @PermissionResult int checkPermission(String permName, String pkgName);
------> frameworks/base/core/java/android/app/ApplicationPackageManager.java nublic int checkPermission(String permName, String pkgName) {
try {
return mPM.checkPermission(permName, pkgName, mContext.getUserId());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
frameworks/base/core/java/android/app/ContextImpl.java
frameworks/base/core/java/android/app/ActivityThread.java
18:57:19 liu: oreo$ grep -rn 'int checkPermission(' frameworks/base/core/
frameworks/base/core/java/android/app/IActivityManager.aidl:169: int checkPermission(in String permission, int pid, int uid);
frameworks/base/core/java/android/app/ApplicationPackageManager.java:557: public int checkPermission(String permName, String pkgName) {
frameworks/base/core/java/android/app/ContextImpl.java:1660: public int checkPermission(String permission, int pid, int uid) {
frameworks/base/core/java/android/app/ContextImpl.java:1686: public int checkPermission(String permission, int pid, int uid, IBinder callerToken) {
frameworks/base/core/java/android/content/pm/IPackageManager.aidl:95: int checkPermission(String permName, String pkgName, int userId);
frameworks/base/core/java/android/content/pm/PackageManager.java:3245: public abstract @PermissionResult int checkPermission(String permName, String pkgName);
frameworks/base/core/java/android/content/Context.java:3998: public abstract int checkPermission(@NonNull String permission, int pid, int uid);
frameworks/base/core/java/android/content/Context.java:4002: public abstract int checkPermission(@NonNull String permission, int pid, int uid,
frameworks/base/core/java/android/content/ContextWrapper.java:717: public int checkPermission(String permission, int pid, int uid) {
frameworks/base/core/java/android/content/ContextWrapper.java:723: public int checkPermission(String permission, int pid, int uid, IBinder callerToken) {
18:57:33 liu: oreo$
frameworks/base/core/java/android/app/ContextImpl.java
@Override
public int checkPermission(String permission, int pid, int uid) {
if (permission == null) {
throw new IllegalArgumentException("permission is null");
}
final IActivityManager am = ActivityManager.getService();
if (am == null) {
// Well this is super awkward; we somehow don't have an active
// ActivityManager instance. If we're testing a root or system
// UID, then they totally have whatever permission this is.
final int appId = UserHandle.getAppId(uid);
if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) {
Slog.w(TAG, "Missing ActivityManager; assuming " + uid + " holds " + permission);
return PackageManager.PERMISSION_GRANTED;
}
}
try {
return am.checkPermission(permission, pid, uid);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
frameworks/base/services/core/java/com/android/server/pm/PackageManagerService.java:4986:
frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java:8212:
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