platform_system_sepolicy/public/hal_wifi.te
xshu 6ad3c891bc Wifi hal - Firmware dump permissions
we are aiming to improve logging performance by having wifi hal
directly write to the flash.

Wifi hal need to be able to create, write, and delete files in
a directory. This will be restricted to userdebug and eng builds only.

Bug: 70170285
Test: compile, run on device
Change-Id: Id0cd317411f4c393d7529aa31b501046d7350edb
2017-12-18 13:11:02 -08:00

31 lines
1.3 KiB
Text

# HwBinder IPC from client to server, and callbacks
binder_call(hal_wifi_client, hal_wifi_server)
binder_call(hal_wifi_server, hal_wifi_client)
add_hwservice(hal_wifi_server, hal_wifi_hwservice)
allow hal_wifi_client hal_wifi_hwservice:hwservice_manager find;
r_dir_file(hal_wifi, proc_net)
r_dir_file(hal_wifi, sysfs_type)
set_prop(hal_wifi, wifi_prop)
# allow hal wifi set interfaces up and down
allow hal_wifi self:udp_socket create_socket_perms;
allowxperm hal_wifi self:udp_socket ioctl { SIOCSIFFLAGS };
allow hal_wifi self:global_capability_class_set { net_admin net_raw };
# allow hal_wifi to speak to nl80211 in the kernel
allow hal_wifi self:netlink_socket create_socket_perms_no_ioctl;
# newer kernels (e.g. 4.4 but not 4.1) have a new class for sockets
allow hal_wifi self:netlink_generic_socket create_socket_perms_no_ioctl;
# hal_wifi writes firmware paths to this file.
allow hal_wifi sysfs_wlan_fwpath:file { w_file_perms };
# allow hal_wifi to access /proc/modules to check if Wi-Fi driver is loaded
allow hal_wifi proc_modules:file { getattr open read };
# allow hal_wifi to write into /data/vendor/tombstones/wifi
userdebug_or_eng(`
allow hal_wifi_server tombstone_wifi_data_file:dir rw_dir_perms;
allow hal_wifi_server tombstone_wifi_data_file:file create_file_perms;
')