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platform_app.te

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    app: Allow all apps to read dropbox FDs
    Jeff Vander Stoep authored and Jeffrey Vander Stoep committed 
    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
    6026a4ad
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    user avatar 6026a4ad
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    platform_app.te 3.43 KiB 
    ###
### Apps signed with the platform key.
###

typeattribute platform_app coredomain;

app_domain(platform_app)

# Access the network.
net_domain(platform_app)
# Access bluetooth.
bluetooth_domain(platform_app)
# Read from /data/local/tmp or /data/data/com.android.shell.
allow platform_app shell_data_file:dir search;
allow platform_app shell_data_file:file { open getattr read };
allow platform_app icon_file:file { open getattr read };
# Populate /data/app/vmdl*.tmp, /data/app-private/vmdl*.tmp files
# created by system server.
allow platform_app { apk_tmp_file apk_private_tmp_file }:dir rw_dir_perms;
allow platform_app { apk_tmp_file apk_private_tmp_file }:file rw_file_perms;
allow platform_app apk_private_data_file:dir search;
# ASEC
allow platform_app asec_apk_file:dir create_dir_perms;
allow platform_app asec_apk_file:file create_file_perms;

# Access to /data/media.
allow platform_app media_rw_data_file:dir create_dir_perms;
allow platform_app media_rw_data_file:file create_file_perms;

# Write to /cache.
allow platform_app cache_file:dir create_dir_perms;
allow platform_app cache_file:file create_file_perms;

# Direct access to vold-mounted storage under /mnt/media_rw
# This is a performance optimization that allows platform apps to bypass the FUSE layer
allow platform_app mnt_media_rw_file:dir r_dir_perms;
allow platform_app sdcard_type:dir create_dir_perms;
allow platform_app sdcard_type:file create_file_perms;

# com.android.systemui
allow platform_app rootfs:dir getattr;

# com.android.captiveportallogin reads /proc/vmstat
allow platform_app {
  proc_vmstat
}:file r_file_perms;

# /proc/net access.
# TODO(b/9496886) Audit access for removal.
r_dir_file(platform_app, proc_net_type)
userdebug_or_eng(`
  auditallow platform_app proc_net_type:{ dir file lnk_file } { getattr open read };
')

allow platform_app audioserver_service:service_manager find;
allow platform_app cameraserver_service:service_manager find;
allow platform_app drmserver_service:service_manager find;
allow platform_app mediaserver_service:service_manager find;
allow platform_app mediametrics_service:service_manager find;
allow platform_app mediaextractor_service:service_manager find;
allow platform_app mediacodec_service:service_manager find;
allow platform_app mediadrmserver_service:service_manager find;
allow platform_app persistent_data_block_service:service_manager find;
allow platform_app radio_service:service_manager find;
allow platform_app thermal_service:service_manager find;
allow platform_app timezone_service:service_manager find;
allow platform_app app_api_service:service_manager find;
allow platform_app system_api_service:service_manager find;
allow platform_app vr_manager_service:service_manager find;

    # Access to /data/preloads
allow platform_app preloads_data_file:file r_file_perms;
allow platform_app preloads_data_file:dir r_dir_perms;
allow platform_app preloads_media_file:file r_file_perms;
allow platform_app preloads_media_file:dir r_dir_perms;

read_runtime_log_tags(platform_app)

# allow platform apps to use UDP sockets provided by the system server but not
# modify them other than to connect
allow platform_app system_server:udp_socket {
        connect getattr read recvfrom sendto write getopt setopt };

# allow platform apps to connect to the property service
set_prop(platform_app, test_boot_reason_prop)

###
### Neverallow rules
###

# app domains which access /dev/fuse should not run as platform_app
neverallow platform_app fuse_device:chr_file *;