platform_system_sepolicy/public/wificond.te
Eric Biggers cc5cb431ee Stop granting permissions on keystore_key class
When keystore was replaced with keystore2 in Android 12, the SELinux
class of keystore keys was changed from keystore_key to keystore2_key.
However, the rules that granted access to keystore_key were never
removed.  This CL removes them, as they are no longer needed.

Don't actually remove the class and its permissions from
private/security_classes and private/access_vectors.  That would break
the build because they're referenced by rules in prebuilts/.

Bug: 171305684
Test: atest CtsKeystoreTestCases
Flag: exempt, removing obsolete code
Change-Id: I35d9ea22c0d069049a892def15a18696c4f287a3
2023-10-16 22:22:54 +00:00

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# wificond
type wificond, domain;
type wificond_exec, system_file_type, exec_type, file_type;
binder_use(wificond)
binder_call(wificond, system_server)
binder_call(wificond, keystore)
add_service(wificond, wifinl80211_service)
hal_client_domain(wificond, hal_nlinterceptor)
# create sockets to set interfaces up and down
allow wificond self:udp_socket create_socket_perms;
# setting interface state up/down is a privileged ioctl
allowxperm wificond self:udp_socket ioctl { SIOCSIFFLAGS SIOCSIFHWADDR };
allow wificond self:global_capability_class_set { net_admin net_raw };
# allow wificond to speak to nl80211 in the kernel
allow wificond self:netlink_socket create_socket_perms_no_ioctl;
# newer kernels (e.g. 4.4 but not 4.1) have a new class for sockets
allow wificond self:netlink_generic_socket create_socket_perms_no_ioctl;
r_dir_file(wificond, proc_net_type)
# allow wificond to check permission for dumping logs
allow wificond permission_service:service_manager find;
# dumpstate support
allow wificond dumpstate:fd use;
allow wificond dumpstate:fifo_file write;
#### Offer the Wifi Keystore HwBinder service ###
hwbinder_use(wificond)
typeattribute wificond wifi_keystore_service_server;
add_hwservice(wificond, system_wifi_keystore_hwservice)
# Allow keystore2 binder access to serve the HwBinder service.
allow wificond keystore_service:service_manager find;
allow wificond wifi_key:keystore2_key {
get_info
use
};