app: Allow all apps to read dropbox FDs

DropboxManager may pass FDs to any app with the READ_LOGS
permission which is available to all apps as a development
permission.

Test: atest CtsIncidentHostTestCases
Fixes: 111856304
Change-Id: I329e3125dab83de948b860061df9d232e31cb23e

private/app_neverallows.te

@@ -265,8 +265,3 @@ full_treble_only(`
 
 # Untrusted apps are not allowed to find mediaextractor update service.
 neverallow all_untrusted_apps mediaextractor_update_service:service_manager find;
-
-# Untrusted apps are not allowed to use the signature|privileged|development
-# android.permission.READ_LOGS permission, so they may not read dropbox files.
-# Access to the the dropbox directory is covered by a neverallow for domain.
-neverallow all_untrusted_apps dropbox_data_file:file *;

private/platform_app.te

@@ -27,9 +27,6 @@ allow platform_app asec_apk_file:file create_file_perms;
 allow platform_app media_rw_data_file:dir create_dir_perms;
 allow platform_app media_rw_data_file:file create_file_perms;
 
-# Read access to FDs from the DropboxManagerService.
-allow platform_app dropbox_data_file:file { getattr read };
-
 # Write to /cache.
 allow platform_app cache_file:dir create_dir_perms;
 allow platform_app cache_file:file create_file_perms;

private/priv_app.te

@@ -54,9 +54,6 @@ allow priv_app ota_package_file:file create_file_perms;
 allow priv_app media_rw_data_file:dir create_dir_perms;
 allow priv_app media_rw_data_file:file create_file_perms;
 
-# Read access to FDs from the DropboxManagerService.
-allow priv_app dropbox_data_file:file { getattr read };
-
 # Used by Finsky / Android "Verify Apps" functionality when
 # running "adb install foo.apk".
 allow priv_app shell_data_file:file r_file_perms;

private/system_app.te

@@ -24,9 +24,6 @@ allow system_app misc_user_data_file:file create_file_perms;
 # Access to vold-mounted storage for measuring free space
 allow system_app mnt_media_rw_file:dir search;
 
-# Read access to FDs from the DropboxManagerService.
-allow system_app dropbox_data_file:file { getattr read };
-
 # Read wallpaper file.
 allow system_app wallpaper_file:file r_file_perms;
 

public/app.te

@@ -350,6 +350,9 @@ allow appdomain cache_file:dir getattr;
 # Allow apps to run with asanwrapper.
 with_asan(`allow appdomain asanwrapper_exec:file rx_file_perms;')
 
+# Read access to FDs from the DropboxManagerService.
+allow appdomain dropbox_data_file:file { getattr read };
+
 ###
 ### Neverallow rules
 ###