sepolicy: Add rules for non-init namespaces
In kernel 4.7, the capability and capability2 classes were split apart
from cap_userns and cap2_userns (see kernel commit
8e4ff6f228e4722cac74db716e308d1da33d744f). Since then, Android cannot be
run in a container with SELinux in enforcing mode.
This change applies the existing capability rules to user namespaces as
well as the root namespace so that Android running in a container
behaves the same on pre- and post-4.7 kernels.
This is essentially:
1. New global_capability_class_set and global_capability2_class_set
that match capability+cap_userns and capability2+cap2_userns,
respectively.
2. s/self:capability/self:global_capability_class_set/g
3. s/self:capability2/self:global_capability2_class_set/g
4. Add cap_userns and cap2_userns to the existing capability_class_set
so that it covers all capabilities. This set was used by several
neverallow and dontaudit rules, and I confirmed that the new
classes are still appropriate.
Test: diff new policy against old and confirm that all new rules add
only cap_userns or cap2_userns;
Boot ARC++ on a device with the 4.12 kernel.
Bug: crbug.com/754831
Change-Id: I4007eb3a2ecd01b062c4c78d9afee71c530df95f
diff --git a/private/bluetooth.te b/private/bluetooth.te
index 41867ae..86a7a2a 100644
--- a/private/bluetooth.te
+++ b/private/bluetooth.te
@@ -22,12 +22,12 @@
# Socket creation under /data/misc/bluedroid.
allow bluetooth bluetooth_socket:sock_file create_file_perms;
-allow bluetooth self:capability net_admin;
-allow bluetooth self:capability2 wake_alarm;
+allow bluetooth self:global_capability_class_set net_admin;
+allow bluetooth self:global_capability2_class_set wake_alarm;
# tethering
allow bluetooth self:packet_socket create_socket_perms_no_ioctl;
-allow bluetooth self:capability { net_admin net_raw net_bind_service };
+allow bluetooth self:global_capability_class_set { net_admin net_raw net_bind_service };
allow bluetooth self:tun_socket create_socket_perms_no_ioctl;
allow bluetooth tun_device:chr_file rw_file_perms;
allow bluetooth efs_file:dir search;
@@ -56,7 +56,7 @@
allow bluetooth shell_data_file:file read;
# Bluetooth audio needs RT scheduling to meet deadlines, allow sys_nice
-allow bluetooth self:capability sys_nice;
+allow bluetooth self:global_capability_class_set sys_nice;
hal_client_domain(bluetooth, hal_bluetooth)
hal_client_domain(bluetooth, hal_telephony)
@@ -71,5 +71,5 @@
# Superuser capabilities.
# Bluetooth requires net_{admin,raw,bind_service} and wake_alarm and block_suspend and sys_nice.
-neverallow bluetooth self:capability ~{ net_admin net_raw net_bind_service sys_nice};
-neverallow bluetooth self:capability2 ~{ wake_alarm block_suspend };
+neverallow bluetooth self:global_capability_class_set ~{ net_admin net_raw net_bind_service sys_nice};
+neverallow bluetooth self:global_capability2_class_set ~{ wake_alarm block_suspend };