bluetooth.te

# bluetooth subsystem
type bluetooth, domain;
app_domain(bluetooth)
net_domain(bluetooth)

# Data file accesses.
allow bluetooth bluetooth_data_file:dir create_dir_perms;
allow bluetooth bluetooth_data_file:notdevfile_class_set create_file_perms;

# Socket creation under /data/misc/bluedroid.
type_transition bluetooth bluetooth_data_file:sock_file bluetooth_socket;
allow bluetooth bluetooth_socket:sock_file create_file_perms;

# bluetooth factory file accesses.
r_dir_file(bluetooth, bluetooth_efs_file)

# Device accesses.
allow bluetooth { tun_device uhid_device hci_attach_dev }:chr_file rw_file_perms;

# Other domains that can create and use bluetooth sockets.
# SELinux does not presently define a specific socket class for
# bluetooth sockets, nor does it distinguish among the bluetooth protocols.
# TODO: This should no longer be needed with bluedroid for bluetooth
# but may be getting used for other non-bluetooth sockets that has no
# specific class defined.  Consider taking to specific domains.
allow bluetoothdomain self:socket create_socket_perms;

# sysfs access.
allow bluetooth sysfs_bluetooth_writable:file rw_file_perms;
allow bluetooth self:capability net_admin;
allow bluetooth self:capability2 wake_alarm;

# Allow clients to use a socket provided by the bluetooth app.
# TODO:  See if this is still required under bluedroid.
allow bluetoothdomain bluetooth:unix_stream_socket { getopt setopt getattr read write ioctl shutdown };

# tethering
allow bluetooth self:tun_socket create_socket_perms;
allow bluetooth efs_file:dir search;

# Talk to init over the property socket.
unix_socket_connect(bluetooth, property, init)

# proc access.
allow bluetooth proc_bluetooth_writable:file rw_file_perms;

# Allow write access to bluetooth specific properties
allow bluetooth bluetooth_prop:property_service set;
allow bluetooth pan_result_prop:property_service set;
allow bluetooth ctl_dhcp_pan_prop:property_service set;

allow bluetooth bluetooth_service:service_manager find;
allow bluetooth mediaserver_service:service_manager find;
allow bluetooth radio_service:service_manager find;
allow bluetooth surfaceflinger_service:service_manager find;
allow bluetooth system_server_service:service_manager find;
allow bluetooth tmp_system_server_service:service_manager find;

service_manager_local_audit_domain(bluetooth)
auditallow bluetooth {
    tmp_system_server_service
    -activity_service
    -appops_service
    -audio_service
    -bluetooth_manager_service
    -connectivity_service
    -display_service
    -dropbox_service
    -media_session_service
    -network_management_service
    -power_service
    -registry_service
    -user_service
}:service_manager find;

# already open bugreport file descriptors may be shared with
# the bluetooth process, from a file in
# /data/data/com.android.shell/files/bugreports/bugreport-*.
allow bluetooth shell_data_file:file read;

###
### Neverallow rules
###
### These are things that the bluetooth app should NEVER be able to do
###

# Superuser capabilities.
# bluetooth requires net_admin and wake_alarm.
neverallow bluetooth self:capability ~net_admin;
neverallow bluetooth self:capability2 ~wake_alarm;