typeattribute init coredomain; tmpfs_domain(init) # Transitions to seclabel processes in init.rc domain_trans(init, rootfs, healthd) domain_trans(init, rootfs, slideshow) domain_auto_trans(init, charger_exec, charger) domain_auto_trans(init, e2fs_exec, e2fs) domain_auto_trans(init, bpfloader_exec, bpfloader) recovery_only(` # Files in recovery image are labeled as rootfs. domain_trans(init, rootfs, adbd) domain_trans(init, rootfs, charger) domain_trans(init, rootfs, fastbootd) domain_trans(init, rootfs, recovery) domain_trans(init, rootfs, linkerconfig) ') domain_trans(init, shell_exec, shell) domain_trans(init, init_exec, ueventd) domain_trans(init, init_exec, vendor_init) domain_trans(init, { rootfs toolbox_exec }, modprobe) userdebug_or_eng(` # case where logpersistd is actually logcat -f in logd context (nee: logcatd) domain_auto_trans(init, logcat_exec, logpersist) # allow init to execute services marked with seclabel u:r:su:s0 in userdebug/eng allow init su:process transition; dontaudit init su:process noatsecure; allow init su:process { siginh rlimitinh }; ') # Allow init to figure out name of dm-device from it's /dev/block/dm-XX path. # This is useful in case of remounting ext4 userdata into checkpointing mode, # since it potentially requires tearing down dm-devices (e.g. dm-bow, dm-crypto) # that userdata is mounted onto. allow init sysfs_dm:file read; # Allow the BoringSSL self test to request a reboot upon failure set_prop(init, powerctl_prop) # Only init is allowed to set userspace reboot related properties. set_prop(init, userspace_reboot_prop) set_prop(init, userspace_reboot_exported_prop) neverallow { domain -init } userspace_reboot_prop:property_service set; neverallow { domain -init } userspace_reboot_exported_prop:property_service set; # Second-stage init performs a test for whether the kernel has SELinux hooks # for the perf_event_open() syscall. This is done by testing for the syscall # outcomes corresponding to this policy. # TODO(b/137092007): this can be removed once the platform stops supporting # kernels that precede the perf_event_open hooks (Android common kernels 4.4 # and 4.9). allow init self:perf_event { open cpu }; neverallow init self:perf_event { kernel tracepoint read write }; dontaudit init self:perf_event { kernel tracepoint read write }; # Only init is allowed to set the sysprop indicating whether perf_event_open() # SELinux hooks were detected. set_prop(init, init_perf_lsm_hooks_prop) neverallow { domain -init } init_perf_lsm_hooks_prop:property_service set;