tequilaOS/platform_system_sepolicy
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

sepolicy: Add new wifi keystore HAL

Browse source 
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
This commit is contained in:
Roshan Pius 2017-03-28 15:45:42 -07:00
parent ad2e6166c8
commit 9af7c95f86
5 changed files with 10 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
public/attributes
View file

@ -223,6 +223,9 @@ attribute hal_vr_server;
attribute hal_wifi;
attribute hal_wifi_client;
attribute hal_wifi_server;
attribute hal_wifi_keystore;
attribute hal_wifi_keystore_client;
attribute hal_wifi_keystore_server;
attribute hal_wifi_supplicant;
attribute hal_wifi_supplicant_client;
attribute hal_wifi_supplicant_server;

2
public/hal_wifi_keystore.te Normal file
View file

@ -0,0 +1,2 @@
# HwBinder IPC from client to server.
binder_call(hal_wifi_keystore_client, hal_wifi_keystore_server)

11
public/hal_wifi_supplicant.te
View file

@ -23,17 +23,6 @@ allow hal_wifi_supplicant wifi_data_file:file create_file_perms;
allow hal_wifi_supplicant wpa_socket:dir create_dir_perms;
allow hal_wifi_supplicant wpa_socket:sock_file create_file_perms;
# TODO(b/34131400): Use hwbinder to access keystore.
use_keystore(hal_wifi_supplicant)
binder_use(hal_wifi_supplicant)
# WPA (wifi) has a restricted set of permissions from the default.
allow hal_wifi_supplicant keystore:keystore_key {
get
sign
verify
};
# 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(`

3
public/keystore.te
View file

@ -10,6 +10,9 @@ binder_call(keystore, system_server)
# talk to keymaster
hal_client_domain(keystore, hal_keymaster)
# Implement the wifi keystore hal.
hal_server_domain(keystore, hal_wifi_keystore)
allow keystore keystore_data_file:dir create_dir_perms;
allow keystore keystore_data_file:notdevfile_class_set create_file_perms;
allow keystore keystore_exec:file { getattr };

4
vendor/hal_wifi_supplicant_default.te vendored
View file

@ -8,8 +8,8 @@ net_domain(hal_wifi_supplicant_default)
# Create a socket for receiving info from wpa
type_transition hal_wifi_supplicant_default wifi_data_file:dir wpa_socket "sockets";
# TODO(b/34603782): Remove this once Wi-Fi Supplicant HAL stops using Binder
typeattribute hal_wifi_supplicant_default binder_in_vendor_violators;
# Allow wpa_supplicant to talk to Wifi Keystore HAL.
hal_client_domain(hal_wifi_supplicant_default, hal_wifi_keystore)
# TODO (b/36645291) Move hal_wifi_supplicant's data access to /data/vendor
# Remove coredata_in_vendor_violators attribute.
# wpa supplicant or equivalent