CODEWITHSUNDEEP
androidpermissionsandroid-source
Ivan Metla
Ivan Metla

Reputation: 103

How I can set file permissions in a custom project added to Android AOSP

I add to AOSP device-owner APP.

  1. Create directory at packages/apps/myapp
  2. Copy myapp.apk , device-owner.xml to packages/apps/myapp
  3. Create Android.mk:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
$(shell mkdir -p $(TARGET_OUT_DATA)/system)
$(shell cp $(LOCAL_PATH)/device_owner.xml $(TARGET_OUT_DATA)/system)
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE := myapp
LOCAL_CERTIFICATE := PRESIGNED
LOCAL_PRIVILEGED_MODULE := true
LOCAL_SRC_FILES :=  $(LOCAL_MODULE).apk
LOCAL_MODULE_CLASS := APPS
LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
LOCAL_POST_INSTALL_CMD := chown system:system $(TARGET_OUT_DATA)/system/device_owner.xml
include $(BUILD_PREBUILT)
  1. device-owner.xml
<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<device-owner package="com.test.test.myapp" />
  1. After flash userdata.img to device I will have permissions:

-rw-r--r-- root root 112 2016-09-22 06:29 device_owner.xml

but must have such as after dpm set-device-owner com.test.test.myapp/.DeviceAdminReceiver

-rw------- system system 112 2016-09-22 06:29 device_owner.xml

How can I set permissions for /data/system/device-owner.xml via Android.xml or another way?

Upvotes: 3

Views: 3149

Answers (2)

Ivan Metla
Ivan Metla

Reputation: 103

Thanks, I found another solution. Edit "system/core/rootdir/init.rc". Add permissions to section "on post-fs-data".

chown system system /data/system/device_owner.xml
chmod 0600 /data/system/device_owner.xml

Upvotes: 4

Mixaz
Mixaz

Reputation: 4178

Sorry if I was unclear - I mean that you can modify permission of your file in system/core/include/private/android_filesystem_config.h as described here: http://paldan.altervista.org/dir-and-files-permissions-in-the-aosp-filesystem/?doing_wp_cron=1474724093.3321709632873535156250 or place device-owner.xml to a folder with proper permissions

Upvotes: 1

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