android crypto implementation android 4.3

Question

我指的是「Android crypto implementation」文件。 w.r.t Android 4.3源碼。

在第2點，它說The framework starts up, and sees that vold.decrypt is set to "1"

但我無法找到確實點中提到的東西2.是否有人能找到它的代碼？它是否與類BackupRestoreConfirmation有關？

Answer 1

只是一個簡單的git的grep將得到所有引用此屬性：

cmds/bootanimation/BootAnimation.cpp:276: property_get("vold.decrypt", decrypt, ""); 
services/java/com/android/server/DevicePolicyManagerService.java:1869:  String state = SystemProperties.get("vold.decrypt"); 
services/java/com/android/server/SystemServer.java:239:   String cryptState = SystemProperties.get("vold.decrypt"); 
services/java/com/android/server/usb/UsbDeviceManager.java:173:  boolean dataEncrypted = "1".equals(SystemProperties.get("vold.decrypt")); 

而且我認爲你需要的是DevicePolicyManagerService.java或SystemServer.java