android_system_sepolicy/public/keystore.te
dcashman cc39f63773 Split general policy into public and private components.
Divide policy into public and private components.  This is the first
step in splitting the policy creation for platform and non-platform
policies.  The policy in the public directory will be exported for use
in non-platform policy creation.  Backwards compatibility with it will
be achieved by converting the exported policy into attribute-based
policy when included as part of the non-platform policy and a mapping
file will be maintained to be included with the platform policy that
maps exported attributes of previous versions to the current platform
version.

Eventually we would like to create a clear interface between the
platform and non-platform device components so that the exported policy,
and the need for attributes is minimal.  For now, almost all types and
avrules are left in public.

Test: Tested by building policy and running on device.

Change-Id: Idef796c9ec169259787c3f9d8f423edf4ce27f8c
2016-10-06 13:09:06 -07:00

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type keystore, domain, domain_deprecated;
type keystore_exec, exec_type, file_type;
# keystore daemon
typeattribute keystore mlstrustedsubject;
binder_use(keystore)
binder_service(keystore)
binder_call(keystore, system_server)
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 };
allow keystore tee_device:chr_file rw_file_perms;
allow keystore tee:unix_stream_socket connectto;
allow keystore keystore_service:service_manager { add find };
allow keystore sec_key_att_app_id_provider_service:service_manager find;
# Check SELinux permissions.
selinux_check_access(keystore)
allow keystore ion_device:chr_file r_file_perms;
r_dir_file(keystore, cgroup)
###
### Neverallow rules
###
### Protect ourself from others
###
neverallow { domain -keystore } keystore_data_file:dir ~{ open create read getattr setattr search relabelto ioctl };
neverallow { domain -keystore } keystore_data_file:notdevfile_class_set ~{ relabelto getattr };
neverallow { domain -keystore -init } keystore_data_file:dir *;
neverallow { domain -keystore -init } keystore_data_file:notdevfile_class_set *;
neverallow * keystore:process ptrace;