f0ea953e60
Bug: 205760652 Test: Build & flash Change-Id: I2709c5cc2ca859481aac6fecbc99fe30a52a668b Signed-off-by: Sandeep Dhavale <dhavale@google.com>
128 lines
5 KiB
Text
128 lines
5 KiB
Text
typeattribute init coredomain;
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tmpfs_domain(init)
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# Transitions to seclabel processes in init.rc
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domain_trans(init, rootfs, slideshow)
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domain_auto_trans(init, charger_exec, charger)
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domain_auto_trans(init, e2fs_exec, e2fs)
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domain_auto_trans(init, bpfloader_exec, bpfloader)
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recovery_only(`
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# Files in recovery image are labeled as rootfs.
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domain_trans(init, rootfs, adbd)
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domain_trans(init, rootfs, hal_bootctl_server)
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domain_trans(init, rootfs, charger)
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domain_trans(init, rootfs, fastbootd)
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domain_trans(init, rootfs, hal_fastboot_server)
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domain_trans(init, rootfs, hal_health_server)
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domain_trans(init, rootfs, recovery)
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domain_trans(init, rootfs, linkerconfig)
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domain_trans(init, rootfs, servicemanager)
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domain_trans(init, rootfs, snapuserd)
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')
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domain_trans(init, shell_exec, shell)
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domain_trans(init, init_exec, ueventd)
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domain_trans(init, init_exec, vendor_init)
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domain_trans(init, { rootfs toolbox_exec }, modprobe)
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userdebug_or_eng(`
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# case where logpersistd is actually logcat -f in logd context (nee: logcatd)
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domain_auto_trans(init, logcat_exec, logpersist)
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# allow init to execute services marked with seclabel u:r:su:s0 in userdebug/eng
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allow init su:process transition;
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dontaudit init su:process noatsecure;
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allow init su:process { siginh rlimitinh };
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')
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# Allow init to figure out name of dm-device from it's /dev/block/dm-XX path.
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# This is useful in case of remounting ext4 userdata into checkpointing mode,
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# since it potentially requires tearing down dm-devices (e.g. dm-bow, dm-crypto)
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# that userdata is mounted onto.
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allow init sysfs_dm:file read;
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# Allow init to modify the properties of loop devices.
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allow init sysfs_loop:dir r_dir_perms;
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allow init sysfs_loop:file rw_file_perms;
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# Allow init to examine the properties of block devices.
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allow init sysfs_type:file { getattr read };
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# Allow init get the attributes of block devices in /dev/block.
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allow init dev_type:dir r_dir_perms;
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allow init dev_type:blk_file getattr;
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# Allow init to write to the drop_caches file.
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allow init proc_drop_caches:file rw_file_perms;
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# Allow the BoringSSL self test to request a reboot upon failure
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set_prop(init, powerctl_prop)
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# Only init is allowed to set userspace reboot related properties.
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set_prop(init, userspace_reboot_exported_prop)
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neverallow { domain -init } userspace_reboot_exported_prop:property_service set;
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# Second-stage init performs a test for whether the kernel has SELinux hooks
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# for the perf_event_open() syscall. This is done by testing for the syscall
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# outcomes corresponding to this policy.
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# TODO(b/137092007): this can be removed once the platform stops supporting
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# kernels that precede the perf_event_open hooks (Android common kernels 4.4
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# and 4.9).
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allow init self:perf_event { open cpu };
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allow init self:global_capability2_class_set perfmon;
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neverallow init self:perf_event { kernel tracepoint read write };
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dontaudit init self:perf_event { kernel tracepoint read write };
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# Allow init to communicate with snapuserd to transition Virtual A/B devices
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# from the first-stage daemon to the second-stage.
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allow init snapuserd_socket:sock_file write;
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allow init snapuserd:unix_stream_socket connectto;
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# Allow for libsnapshot's use of flock() on /metadata/ota.
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allow init ota_metadata_file:dir lock;
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# Allow init to restore contexts of vd_device(/dev/block/vd[..]) when labeling
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# /dev/block.
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allow init vd_device:blk_file relabelto;
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# Only init is allowed to set the sysprop indicating whether perf_event_open()
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# SELinux hooks were detected.
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set_prop(init, init_perf_lsm_hooks_prop)
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neverallow { domain -init } init_perf_lsm_hooks_prop:property_service set;
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# Only init can write vts.native_server.on
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set_prop(init, vts_status_prop)
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neverallow { domain -init } vts_status_prop:property_service set;
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# Only init can write normal ro.boot. properties
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neverallow { domain -init } bootloader_prop:property_service set;
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# Only init can write ro.boot.hypervisor properties
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neverallow { domain -init } hypervisor_prop:property_service set;
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# Only init can write hal.instrumentation.enable
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neverallow { domain -init } hal_instrumentation_prop:property_service set;
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# Only init can write ro.property_service.version
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neverallow { domain -init } property_service_version_prop:property_service set;
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# Only init can set keystore.boot_level
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neverallow { domain -init } keystore_listen_prop:property_service set;
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# Allow accessing /sys/kernel/tracing/instances/bootreceiver to set up tracing.
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allow init debugfs_bootreceiver_tracing:file w_file_perms;
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# PRNG seeder daemon socket is created and listened on by init before forking.
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allow init prng_seeder:unix_stream_socket { create bind listen };
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# Devices with kernels where CONFIG_HIST_TRIGGERS isn't enabled will
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# attempt to write a non exisiting 'synthetic_events' file, when setting
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# up synthetic events. This is a no-op in tracefs.
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dontaudit init debugfs_tracing_debug:dir { write add_name };
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# chown/chmod on devices.
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allow init {
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dev_type
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-hw_random_device
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-keychord_device
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-kvm_device
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-port_device
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}:chr_file setattr;
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