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160 lines
4.9 KiB
160 lines
4.9 KiB
# Copyright (C) 2021 The Android Open Source Project
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#
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# init.rc for microdroid. This contains a minimal script plus basic service definitions (e.g. apexd)
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# needed for microdroid to run.
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# TODO(b/179340780): support APEX init scripts
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#
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# IMPORTANT: Do not create world writable files or directories.
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# This is a common source of Android security bugs.
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#
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import /init.environ.rc
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# Cgroups are mounted right before early-init using list from /etc/cgroups.json
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on early-init
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# TODO(b/185991357) eliminate bootstrap mount namespace
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# Set up linker config subdirectories based on mount namespaces
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mkdir /linkerconfig/bootstrap 0755
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mkdir /linkerconfig/default 0755
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# Generate ld.config.txt for early executed processes
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exec -- /system/bin/bootstrap/linkerconfig --target /linkerconfig/bootstrap
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chmod 644 /linkerconfig/bootstrap/ld.config.txt
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copy /linkerconfig/bootstrap/ld.config.txt /linkerconfig/default/ld.config.txt
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chmod 644 /linkerconfig/default/ld.config.txt
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# Mount bootstrap linker configuration as current
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mount none /linkerconfig/bootstrap /linkerconfig bind rec
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start ueventd
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# Run apexd-bootstrap so that APEXes that provide critical libraries
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# become available. Note that this is executed as exec_start to ensure that
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# the libraries are available to the processes started after this statement.
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exec_start apexd-bootstrap
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# Generate linker config based on apex mounted in bootstrap namespace
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update_linker_config
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on init
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# Mount binderfs
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mkdir /dev/binderfs
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mount binder binder /dev/binderfs stats=global
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chmod 0755 /dev/binderfs
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symlink /dev/binderfs/binder /dev/binder
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symlink /dev/binderfs/hwbinder /dev/hwbinder
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symlink /dev/binderfs/vndbinder /dev/vndbinder
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chmod 0666 /dev/binderfs/hwbinder
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chmod 0666 /dev/binderfs/binder
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chmod 0666 /dev/binderfs/vndbinder
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# Start logd before any other services run to ensure we capture all of their logs.
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start logd
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start servicemanager
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on load_persist_props_action
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start logd
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start logd-reinit
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# Mount filesystems and start core system services.
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on late-init
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trigger early-fs
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# Mount fstab in init.{$device}.rc by mount_all command. Optional parameter
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# '--early' can be specified to skip entries with 'latemount'.
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# /system and /vendor must be mounted by the end of the fs stage,
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# while /data is optional.
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trigger fs
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trigger post-fs
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# Mount fstab in init.{$device}.rc by mount_all with '--late' parameter
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# to only mount entries with 'latemount'. This is needed if '--early' is
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# specified in the previous mount_all command on the fs stage.
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# With /system mounted and properties form /system + /factory available,
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# some services can be started.
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trigger late-fs
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trigger post-fs-data
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# Load persist properties and override properties (if enabled) from /data.
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trigger load_persist_props_action
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# Should be before netd, but after apex, properties and logging is available.
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trigger load_bpf_programs
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# Now we can start zygote for devices with file based encryption
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trigger zygote-start
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# Remove a file to wake up anything waiting for firmware.
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trigger firmware_mounts_complete
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trigger early-boot
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trigger boot
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on post-fs
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# Once everything is setup, no need to modify /.
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# The bind+remount combination allows this to work in containers.
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mount rootfs rootfs / remount bind ro nodev
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enter_default_mount_ns
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# Start apexd in the VM mode to avoid unnecessary overhead of session management.
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exec - root system -- /system/bin/apexd --vm
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perform_apex_config
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exec_start derive_sdk
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start adbd
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on post-fs-data
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mount_all /vendor/etc/fstab --late
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restorecon /data
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mkdir /data/vendor 0771 root root encryption=Require
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mkdir /data/vendor_ce 0771 root root encryption=None
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mkdir /data/vendor_de 0771 root root encryption=None
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mkdir /data/vendor/hardware 0771 root root
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# Start tombstoned early to be able to store tombstones.
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# microdroid doesn't have anr, but tombstoned requires it
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mkdir /data/anr 0775 system system encryption=Require
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mkdir /data/tombstones 0771 system system encryption=Require
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mkdir /data/vendor/tombstones 0771 root root
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start tombstoned
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# For security reasons, /data/local/tmp should always be empty.
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# Do not place files or directories in /data/local/tmp
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mkdir /data/local 0751 root root encryption=Require
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mkdir /data/local/tmp 0771 shell shell
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service ueventd /system/bin/ueventd
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class core
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critical
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seclabel u:r:ueventd:s0
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shutdown critical
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service console /system/bin/sh
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class core
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console
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disabled
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user shell
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group shell log readproc
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seclabel u:r:shell:s0
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setenv HOSTNAME console
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on fs
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write /dev/event-log-tags "# content owned by logd
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"
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chown logd logd /dev/event-log-tags
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chmod 0644 /dev/event-log-tags
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on property:sys.boot_completed=1
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start logd-auditctl
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