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Nick Kralevich authoredOnly keystore itself should be reading / writing it's files. Remove keystore file access from other SELinux domains, including unconfined. Add neverallow rules to protect against regressions. Allow init limited access to recurse into keystore's directory. Change-Id: I0bb5de7804f4314997c16fac18507933014bcadf
Nick Kralevich authoredOnly keystore itself should be reading / writing it's files. Remove keystore file access from other SELinux domains, including unconfined. Add neverallow rules to protect against regressions. Allow init limited access to recurse into keystore's directory. Change-Id: I0bb5de7804f4314997c16fac18507933014bcadf
keystore.te 935 B
type keystore, domain;
type keystore_exec, exec_type, file_type;
# keystore daemon
init_daemon_domain(keystore)
typeattribute keystore mlstrustedsubject;
binder_use(keystore)
binder_service(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 };
allow keystore tee_device:chr_file rw_file_perms;
allow keystore tee:unix_stream_socket connectto;
###
### Neverallow rules
###
### Protect our files from others
###
neverallow { domain -keystore } keystore_data_file:dir ~{ open create read getattr setattr search relabelto };
neverallow { domain -keystore } keystore_data_file:notdevfile_class_set ~{ relabelto getattr };
neverallow { domain -keystore -init -kernel -recovery } keystore_data_file:dir *;
neverallow { domain -keystore -init -kernel -recovery } keystore_data_file:notdevfile_class_set *;