platform_system_sepolicy/public/wificond.te
Roshan Pius 02ed21e851 hal_wifi: Allow system_server to access wifi HIDL services
We're going to be using Android framework directly to invoke Wifi HIDL
calls. So, change permissions appropriately.

Bug: 33398154
Test: Verfied that framework is able to make HIDL calls using
go/aog/310610.

Change-Id: I4d0d88961753ad73f3876aec58b26b89486cc02a
2016-12-12 10:40:14 -08:00

45 lines
1.7 KiB
Text

# wificond
type wificond, domain;
type wificond_exec, exec_type, file_type;
binder_use(wificond)
binder_call(wificond, system_server)
allow wificond wificond_service:service_manager { add find };
# wificond writes firmware paths to this file.
# wificond also changes the owership of this file on startup.
allow wificond sysfs_wlan_fwpath:file { w_file_perms setattr };
set_prop(wificond, wifi_prop)
set_prop(wificond, ctl_default_prop)
# create sockets to set interfaces up and down
allow wificond self:udp_socket create_socket_perms;
# setting interface state up/down is a privileged ioctl
allowxperm wificond self:udp_socket ioctl { SIOCSIFFLAGS };
allow wificond self:capability { net_admin net_raw };
# allow wificond to speak to nl80211 in the kernel
allow wificond 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 wificond self:netlink_generic_socket create_socket_perms_no_ioctl;
r_dir_file(wificond, proc_net)
# wificond writes out configuration files for wpa_supplicant/hostapd.
# wificond also reads pid files out of this directory
allow wificond wifi_data_file:dir rw_dir_perms;
allow wificond wifi_data_file:file create_file_perms;
# wificond drops root shortly after starting
# wificond changes the ownership of some files before dropping root
allow wificond self:capability { setuid setgid setpcap chown };
# wificond cleans up sockets created by wpa_supplicant and framework
allow wificond wpa_socket:dir rw_dir_perms;
allow wificond system_wpa_socket:sock_file unlink;
allow wificond wpa_socket:sock_file unlink;
# dumpstate support
allow wificond dumpstate:fd use;
allow wificond dumpstate:fifo_file write;