android10/system/sepolicy/public/hal_wifi_supplicant.te

# HwBinder IPC from client to server
binder_call(hal_wifi_supplicant_client, hal_wifi_supplicant_server)
binder_call(hal_wifi_supplicant_server, hal_wifi_supplicant_client)

hal_attribute_hwservice(hal_wifi_supplicant, hal_wifi_supplicant_hwservice)

# in addition to ioctls whitelisted for all domains, grant hal_wifi_supplicant priv_sock_ioctls.
allowxperm hal_wifi_supplicant self:udp_socket ioctl priv_sock_ioctls;

r_dir_file(hal_wifi_supplicant, sysfs_type)
r_dir_file(hal_wifi_supplicant, proc_net_type)

allow hal_wifi_supplicant kernel:system module_request;
allow hal_wifi_supplicant self:global_capability_class_set { setuid net_admin setgid net_raw };
allow hal_wifi_supplicant cgroup:dir create_dir_perms;
allow hal_wifi_supplicant self:netlink_route_socket nlmsg_write;
allow hal_wifi_supplicant self:netlink_socket create_socket_perms_no_ioctl;
allow hal_wifi_supplicant self:netlink_generic_socket create_socket_perms_no_ioctl;
allow hal_wifi_supplicant self:packet_socket create_socket_perms;
allowxperm hal_wifi_supplicant self:packet_socket ioctl { unpriv_sock_ioctls priv_sock_ioctls unpriv_tty_ioctls };

###
### neverallow rules
###

# wpa_supplicant should not trust any data from sdcards
neverallow hal_wifi_supplicant_server sdcard_type:dir ~getattr;
neverallow hal_wifi_supplicant_server sdcard_type:file *;