platform_system_sepolicy/public/hal_wifi_hostapd.te
Thiébaud Weksteen 9ec532752d Add fusefs_type for FUSE filesystems
Any FUSE filesystem will receive the 'fuse' type when mounted. It is
possible to change this behaviour by specifying the "context=" or
"fscontext=" option in mount().

Because 'fuse' has historically been used only for the emulated storage,
it also received the 'sdcard_type' attribute. Replace the 'sdcard_type'
attribute from 'fuse' with the new 'fusefs_type'. This attribute can be
attached on derived types (such as app_fusefs).

This change:
- Remove the neverallow restriction on this new type. This means any
  custom FUSE implementation can be mounted/unmounted (if the correct
  allow rule is added). See domain.te.
- Change the attribute of 'fuse' from 'sdcard_type' to 'fusefs_type'.
  See file.te.
- Modify all references to 'sdcard_type' to explicitly include 'fuse'
  for compatibility reason.

Bug: 177481425
Bug: 190804537
Test: Build and boot aosp_cf_x86_64_phone-userdebug
Change-Id: Id4e410a049f72647accd4c3cf43eaa55e94c318f
2021-06-28 13:18:46 +02:00

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# HwBinder IPC from client to server
binder_call(hal_wifi_hostapd_client, hal_wifi_hostapd_server)
binder_call(hal_wifi_hostapd_server, hal_wifi_hostapd_client)
hal_attribute_hwservice(hal_wifi_hostapd, hal_wifi_hostapd_hwservice)
allow hal_wifi_hostapd_server self:global_capability_class_set { net_admin net_raw };
allow hal_wifi_hostapd_server sysfs_net:dir search;
# Allow hal_wifi_hostapd to access /proc/net/psched
allow hal_wifi_hostapd_server proc_net_type:file { getattr open read };
# Various socket permissions.
allowxperm hal_wifi_hostapd_server self:udp_socket ioctl priv_sock_ioctls;
allow hal_wifi_hostapd_server self:netlink_socket create_socket_perms_no_ioctl;
allow hal_wifi_hostapd_server self:netlink_generic_socket create_socket_perms_no_ioctl;
allow hal_wifi_hostapd_server self:packet_socket create_socket_perms_no_ioctl;
allow hal_wifi_hostapd_server self:netlink_route_socket nlmsg_write;
###
### neverallow rules
###
# hal_wifi_hostapd should not trust any data from sdcards
neverallow hal_wifi_hostapd_server { sdcard_type fuse }:dir ~getattr;
neverallow hal_wifi_hostapd_server { sdcard_type fuse }:file *;