platform_system_sepolicy/public/hal_wifi_supplicant.te
Roshan Pius 9af7c95f86 sepolicy: Add new wifi keystore HAL
Moving the wpa_supplicant interaction from the binder keystore service
to the new wifi keystore HAL.

Denials addressed:
03-29 00:04:52.075   734   734 E SELinux : avc:  denied  { get } for
pid=638 uid=1010 scontext=u:r:hal_wifi_keystore_default:s0
tcontext=u:r:keystore:s0 tclass=keystore_key

Bug: 34603782
Test: Able to connect to wifi passpoint networks. Denials no longer
seen.
Change-Id: I97eb9a4aa9968056a2f1fcc7ce5509ceb62fd41e
2017-03-29 14:07:36 -07:00

38 lines
1.7 KiB
Text

# 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)
# 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)
allow hal_wifi_supplicant kernel:system module_request;
allow hal_wifi_supplicant self:capability { 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 };
allow hal_wifi_supplicant wifi_data_file:dir create_dir_perms;
allow hal_wifi_supplicant wifi_data_file:file create_file_perms;
# Create a socket for receiving info from wpa
allow hal_wifi_supplicant wpa_socket:dir create_dir_perms;
allow hal_wifi_supplicant wpa_socket:sock_file create_file_perms;
# Allow wpa_cli to work. wpa_cli creates a socket in
# /data/misc/wifi/sockets which hal_wifi_supplicant supplicant communicates with.
userdebug_or_eng(`
unix_socket_send(hal_wifi_supplicant, wpa, su)
')
###
### 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 *;