1321 lines
55 KiB
Text
1321 lines
55 KiB
Text
# Copyright (C) 2012 The Android Open Source Project
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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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import /system/etc/init/hw/init.usb.rc
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import /init.${ro.hardware}.rc
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import /vendor/etc/init/hw/init.${ro.hardware}.rc
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import /system/etc/init/hw/init.usb.configfs.rc
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import /system/etc/init/hw/init.${ro.zygote}.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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# Disable sysrq from keyboard
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write /proc/sys/kernel/sysrq 0
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# Android doesn't need kernel module autoloading, and it causes SELinux
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# denials. So disable it by setting modprobe to the empty string. Note: to
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# explicitly set a sysctl to an empty string, a trailing newline is needed.
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write /proc/sys/kernel/modprobe \n
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# Set the security context of /adb_keys if present.
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restorecon /adb_keys
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# Set the security context of /postinstall if present.
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restorecon /postinstall
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mkdir /acct/uid
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# memory.pressure_level used by lmkd
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chown root system /dev/memcg/memory.pressure_level
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chmod 0040 /dev/memcg/memory.pressure_level
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# app mem cgroups, used by activity manager, lmkd and zygote
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mkdir /dev/memcg/apps/ 0755 system system
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# cgroup for system_server and surfaceflinger
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mkdir /dev/memcg/system 0550 system system
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# symlink the Android specific /dev/tun to Linux expected /dev/net/tun
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mkdir /dev/net 0755 root root
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symlink ../tun /dev/net/tun
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# set RLIMIT_NICE to allow priorities from 19 to -20
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setrlimit nice 40 40
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# Allow up to 32K FDs per process
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setrlimit nofile 32768 32768
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# set RLIMIT_MEMLOCK to 64KB
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setrlimit memlock 65536 65536
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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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# Disable dm-verity hash prefetching, since it doesn't help performance
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# Read more in b/136247322
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write /sys/module/dm_verity/parameters/prefetch_cluster 0
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# Generate empty ld.config.txt for early executed processes which rely on
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# /system/lib libraries.
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write /linkerconfig/bootstrap/ld.config.txt \#
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write /linkerconfig/default/ld.config.txt \#
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chmod 644 /linkerconfig/bootstrap/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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perform_apex_config --bootstrap
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# These must already exist by the time boringssl_self_test32 / boringssl_self_test64 run.
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mkdir /dev/boringssl 0755 root root
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mkdir /dev/boringssl/selftest 0755 root root
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# Mount tracefs (with GID=AID_READTRACEFS)
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mount tracefs tracefs /sys/kernel/tracing gid=3012
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# create sys dirctory
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mkdir /dev/sys 0755 system system
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mkdir /dev/sys/fs 0755 system system
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mkdir /dev/sys/block 0755 system system
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# Create location for fs_mgr to store abbreviated output from filesystem
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# checker programs.
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mkdir /dev/fscklogs 0770 root system
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on init
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sysclktz 0
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# Mix device-specific information into the entropy pool
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copy /proc/cmdline /dev/urandom
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copy /system/etc/prop.default /dev/urandom
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symlink /proc/self/fd/0 /dev/stdin
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symlink /proc/self/fd/1 /dev/stdout
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symlink /proc/self/fd/2 /dev/stderr
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# Create energy-aware scheduler tuning nodes
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mkdir /dev/stune/foreground
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mkdir /dev/stune/background
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mkdir /dev/stune/top-app
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mkdir /dev/stune/rt
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chown system system /dev/stune
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chown system system /dev/stune/foreground
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chown system system /dev/stune/background
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chown system system /dev/stune/top-app
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chown system system /dev/stune/rt
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chown system system /dev/stune/tasks
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chown system system /dev/stune/foreground/tasks
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chown system system /dev/stune/background/tasks
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chown system system /dev/stune/top-app/tasks
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chown system system /dev/stune/rt/tasks
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chown system system /dev/stune/cgroup.procs
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chown system system /dev/stune/foreground/cgroup.procs
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chown system system /dev/stune/background/cgroup.procs
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chown system system /dev/stune/top-app/cgroup.procs
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chown system system /dev/stune/rt/cgroup.procs
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chmod 0664 /dev/stune/tasks
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chmod 0664 /dev/stune/foreground/tasks
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chmod 0664 /dev/stune/background/tasks
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chmod 0664 /dev/stune/top-app/tasks
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chmod 0664 /dev/stune/rt/tasks
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chmod 0664 /dev/stune/cgroup.procs
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chmod 0664 /dev/stune/foreground/cgroup.procs
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chmod 0664 /dev/stune/background/cgroup.procs
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chmod 0664 /dev/stune/top-app/cgroup.procs
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chmod 0664 /dev/stune/rt/cgroup.procs
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# cpuctl hierarchy for devices using utilclamp
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mkdir /dev/cpuctl/foreground
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mkdir /dev/cpuctl/background
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mkdir /dev/cpuctl/top-app
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mkdir /dev/cpuctl/rt
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mkdir /dev/cpuctl/system
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mkdir /dev/cpuctl/system-background
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mkdir /dev/cpuctl/dex2oat
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chown system system /dev/cpuctl
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chown system system /dev/cpuctl/foreground
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chown system system /dev/cpuctl/background
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chown system system /dev/cpuctl/top-app
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chown system system /dev/cpuctl/rt
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chown system system /dev/cpuctl/system
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chown system system /dev/cpuctl/system-background
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chown system system /dev/cpuctl/dex2oat
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chown system system /dev/cpuctl/tasks
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chown system system /dev/cpuctl/foreground/tasks
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chown system system /dev/cpuctl/background/tasks
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chown system system /dev/cpuctl/top-app/tasks
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chown system system /dev/cpuctl/rt/tasks
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chown system system /dev/cpuctl/system/tasks
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chown system system /dev/cpuctl/system-background/tasks
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chown system system /dev/cpuctl/dex2oat/tasks
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chown system system /dev/cpuctl/cgroup.procs
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chown system system /dev/cpuctl/foreground/cgroup.procs
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chown system system /dev/cpuctl/background/cgroup.procs
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chown system system /dev/cpuctl/top-app/cgroup.procs
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chown system system /dev/cpuctl/rt/cgroup.procs
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chown system system /dev/cpuctl/system/cgroup.procs
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chown system system /dev/cpuctl/system-background/cgroup.procs
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chown system system /dev/cpuctl/dex2oat/cgroup.procs
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chmod 0664 /dev/cpuctl/tasks
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chmod 0664 /dev/cpuctl/foreground/tasks
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chmod 0664 /dev/cpuctl/background/tasks
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chmod 0664 /dev/cpuctl/top-app/tasks
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chmod 0664 /dev/cpuctl/rt/tasks
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chmod 0664 /dev/cpuctl/system/tasks
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chmod 0664 /dev/cpuctl/system-background/tasks
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chmod 0664 /dev/cpuctl/dex2oat/tasks
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chmod 0664 /dev/cpuctl/cgroup.procs
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chmod 0664 /dev/cpuctl/foreground/cgroup.procs
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chmod 0664 /dev/cpuctl/background/cgroup.procs
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chmod 0664 /dev/cpuctl/top-app/cgroup.procs
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chmod 0664 /dev/cpuctl/rt/cgroup.procs
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chmod 0664 /dev/cpuctl/system/cgroup.procs
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chmod 0664 /dev/cpuctl/system-background/cgroup.procs
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chmod 0664 /dev/cpuctl/dex2oat/cgroup.procs
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# Create a cpu group for NNAPI HAL processes
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mkdir /dev/cpuctl/nnapi-hal
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chown system system /dev/cpuctl/nnapi-hal
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chown system system /dev/cpuctl/nnapi-hal/tasks
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chown system system /dev/cpuctl/nnapi-hal/cgroup.procs
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chmod 0664 /dev/cpuctl/nnapi-hal/tasks
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chmod 0664 /dev/cpuctl/nnapi-hal/cgroup.procs
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write /dev/cpuctl/nnapi-hal/cpu.uclamp.min 1
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write /dev/cpuctl/nnapi-hal/cpu.uclamp.latency_sensitive 1
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# Create a cpu group for camera daemon processes
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mkdir /dev/cpuctl/camera-daemon
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chown system system /dev/cpuctl/camera-daemon
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chown system system /dev/cpuctl/camera-daemon/tasks
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chown system system /dev/cpuctl/camera-daemon/cgroup.procs
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chmod 0664 /dev/cpuctl/camera-daemon/tasks
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chmod 0664 /dev/cpuctl/camera-daemon/cgroup.procs
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# Create an stune group for camera-specific processes
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mkdir /dev/stune/camera-daemon
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chown system system /dev/stune/camera-daemon
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chown system system /dev/stune/camera-daemon/tasks
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chown system system /dev/stune/camera-daemon/cgroup.procs
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chmod 0664 /dev/stune/camera-daemon/tasks
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chmod 0664 /dev/stune/camera-daemon/cgroup.procs
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# Create an stune group for NNAPI HAL processes
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mkdir /dev/stune/nnapi-hal
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chown system system /dev/stune/nnapi-hal
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chown system system /dev/stune/nnapi-hal/tasks
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chown system system /dev/stune/nnapi-hal/cgroup.procs
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chmod 0664 /dev/stune/nnapi-hal/tasks
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chmod 0664 /dev/stune/nnapi-hal/cgroup.procs
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write /dev/stune/nnapi-hal/schedtune.boost 1
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write /dev/stune/nnapi-hal/schedtune.prefer_idle 1
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restorecon_recursive /mnt
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mount configfs none /config nodev noexec nosuid
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chmod 0770 /config/sdcardfs
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chown system package_info /config/sdcardfs
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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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# Mount fusectl
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mount fusectl none /sys/fs/fuse/connections
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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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mkdir /mnt/secure 0700 root root
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mkdir /mnt/secure/asec 0700 root root
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mkdir /mnt/asec 0755 root system
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mkdir /mnt/obb 0755 root system
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mkdir /mnt/media_rw 0750 root external_storage
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mkdir /mnt/user 0755 root root
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mkdir /mnt/user/0 0755 root root
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mkdir /mnt/user/0/self 0755 root root
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mkdir /mnt/user/0/emulated 0755 root root
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mkdir /mnt/user/0/emulated/0 0755 root root
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# Prepare directories for pass through processes
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mkdir /mnt/pass_through 0700 root root
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mkdir /mnt/pass_through/0 0710 root media_rw
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mkdir /mnt/pass_through/0/self 0710 root media_rw
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mkdir /mnt/pass_through/0/emulated 0710 root media_rw
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mkdir /mnt/pass_through/0/emulated/0 0710 root media_rw
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mkdir /mnt/expand 0771 system system
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mkdir /mnt/appfuse 0711 root root
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# Storage views to support runtime permissions
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mkdir /mnt/runtime 0700 root root
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mkdir /mnt/runtime/default 0755 root root
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mkdir /mnt/runtime/default/self 0755 root root
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mkdir /mnt/runtime/read 0755 root root
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mkdir /mnt/runtime/read/self 0755 root root
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mkdir /mnt/runtime/write 0755 root root
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mkdir /mnt/runtime/write/self 0755 root root
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mkdir /mnt/runtime/full 0755 root root
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mkdir /mnt/runtime/full/self 0755 root root
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# Symlink to keep legacy apps working in multi-user world
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symlink /storage/self/primary /mnt/sdcard
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symlink /mnt/user/0/primary /mnt/runtime/default/self/primary
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write /proc/sys/kernel/panic_on_oops 1
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write /proc/sys/kernel/hung_task_timeout_secs 0
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write /proc/cpu/alignment 4
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# scheduler tunables
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# Disable auto-scaling of scheduler tunables with hotplug. The tunables
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# will vary across devices in unpredictable ways if allowed to scale with
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# cpu cores.
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write /proc/sys/kernel/sched_tunable_scaling 0
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write /proc/sys/kernel/sched_latency_ns 10000000
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write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
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write /proc/sys/kernel/sched_child_runs_first 0
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write /proc/sys/kernel/randomize_va_space 2
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write /proc/sys/vm/mmap_min_addr 32768
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write /proc/sys/net/ipv4/ping_group_range "0 2147483647"
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write /proc/sys/net/unix/max_dgram_qlen 2400
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# Assign reasonable ceiling values for socket rcv/snd buffers.
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# These should almost always be overridden by the target per the
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# the corresponding technology maximums.
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write /proc/sys/net/core/rmem_max 262144
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write /proc/sys/net/core/wmem_max 262144
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# reflect fwmark from incoming packets onto generated replies
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write /proc/sys/net/ipv4/fwmark_reflect 1
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write /proc/sys/net/ipv6/fwmark_reflect 1
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# set fwmark on accepted sockets
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write /proc/sys/net/ipv4/tcp_fwmark_accept 1
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# disable icmp redirects
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write /proc/sys/net/ipv4/conf/all/accept_redirects 0
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write /proc/sys/net/ipv6/conf/all/accept_redirects 0
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# /proc/net/fib_trie leaks interface IP addresses
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chmod 0400 /proc/net/fib_trie
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# sets up initial cpusets for ActivityManager
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# this ensures that the cpusets are present and usable, but the device's
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# init.rc must actually set the correct cpus
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mkdir /dev/cpuset/foreground
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copy /dev/cpuset/cpus /dev/cpuset/foreground/cpus
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copy /dev/cpuset/mems /dev/cpuset/foreground/mems
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mkdir /dev/cpuset/background
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copy /dev/cpuset/cpus /dev/cpuset/background/cpus
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copy /dev/cpuset/mems /dev/cpuset/background/mems
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# system-background is for system tasks that should only run on
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# little cores, not on bigs
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mkdir /dev/cpuset/system-background
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copy /dev/cpuset/cpus /dev/cpuset/system-background/cpus
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copy /dev/cpuset/mems /dev/cpuset/system-background/mems
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# restricted is for system tasks that are being throttled
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# due to screen off.
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mkdir /dev/cpuset/restricted
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copy /dev/cpuset/cpus /dev/cpuset/restricted/cpus
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copy /dev/cpuset/mems /dev/cpuset/restricted/mems
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mkdir /dev/cpuset/top-app
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copy /dev/cpuset/cpus /dev/cpuset/top-app/cpus
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copy /dev/cpuset/mems /dev/cpuset/top-app/mems
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# create a cpuset for camera daemon processes
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mkdir /dev/cpuset/camera-daemon
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copy /dev/cpuset/cpus /dev/cpuset/camera-daemon/cpus
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copy /dev/cpuset/mems /dev/cpuset/camera-daemon/mems
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# change permissions for all cpusets we'll touch at runtime
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chown system system /dev/cpuset
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chown system system /dev/cpuset/foreground
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chown system system /dev/cpuset/background
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chown system system /dev/cpuset/system-background
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chown system system /dev/cpuset/top-app
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chown system system /dev/cpuset/restricted
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chown system system /dev/cpuset/camera-daemon
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chown system system /dev/cpuset/tasks
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chown system system /dev/cpuset/foreground/tasks
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chown system system /dev/cpuset/background/tasks
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chown system system /dev/cpuset/system-background/tasks
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chown system system /dev/cpuset/top-app/tasks
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chown system system /dev/cpuset/restricted/tasks
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chown system system /dev/cpuset/camera-daemon/tasks
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chown system system /dev/cpuset/cgroup.procs
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chown system system /dev/cpuset/foreground/cgroup.procs
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chown system system /dev/cpuset/background/cgroup.procs
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chown system system /dev/cpuset/system-background/cgroup.procs
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chown system system /dev/cpuset/top-app/cgroup.procs
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chown system system /dev/cpuset/restricted/cgroup.procs
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chown system system /dev/cpuset/camera-daemon/cgroup.procs
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# set system-background to 0775 so SurfaceFlinger can touch it
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chmod 0775 /dev/cpuset/system-background
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chmod 0664 /dev/cpuset/foreground/tasks
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chmod 0664 /dev/cpuset/background/tasks
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chmod 0664 /dev/cpuset/system-background/tasks
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chmod 0664 /dev/cpuset/top-app/tasks
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chmod 0664 /dev/cpuset/restricted/tasks
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chmod 0664 /dev/cpuset/tasks
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chmod 0664 /dev/cpuset/camera-daemon/tasks
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chmod 0664 /dev/cpuset/foreground/cgroup.procs
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chmod 0664 /dev/cpuset/background/cgroup.procs
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chmod 0664 /dev/cpuset/system-background/cgroup.procs
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chmod 0664 /dev/cpuset/top-app/cgroup.procs
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chmod 0664 /dev/cpuset/restricted/cgroup.procs
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chmod 0664 /dev/cpuset/cgroup.procs
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chmod 0664 /dev/cpuset/camera-daemon/cgroup.procs
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# make the PSI monitor accessible to others
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chown system system /proc/pressure/memory
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chmod 0664 /proc/pressure/memory
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# qtaguid will limit access to specific data based on group memberships.
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# net_bw_acct grants impersonation of socket owners.
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# net_bw_stats grants access to other apps' detailed tagged-socket stats.
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chown root net_bw_acct /proc/net/xt_qtaguid/ctrl
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chown root net_bw_stats /proc/net/xt_qtaguid/stats
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# Allow everybody to read the xt_qtaguid resource tracking misc dev.
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# This is needed by any process that uses socket tagging.
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chmod 0644 /dev/xt_qtaguid
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mount bpf bpf /sys/fs/bpf nodev noexec nosuid
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# pstore/ramoops previous console log
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mount pstore pstore /sys/fs/pstore nodev noexec nosuid
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chown system log /sys/fs/pstore
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chmod 0550 /sys/fs/pstore
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chown system log /sys/fs/pstore/console-ramoops
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chmod 0440 /sys/fs/pstore/console-ramoops
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chown system log /sys/fs/pstore/console-ramoops-0
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chmod 0440 /sys/fs/pstore/console-ramoops-0
|
|
chown system log /sys/fs/pstore/pmsg-ramoops-0
|
|
chmod 0440 /sys/fs/pstore/pmsg-ramoops-0
|
|
|
|
# enable armv8_deprecated instruction hooks
|
|
write /proc/sys/abi/swp 1
|
|
|
|
# Linux's execveat() syscall may construct paths containing /dev/fd
|
|
# expecting it to point to /proc/self/fd
|
|
symlink /proc/self/fd /dev/fd
|
|
|
|
export DOWNLOAD_CACHE /data/cache
|
|
|
|
# This allows the ledtrig-transient properties to be created here so
|
|
# that they can be chown'd to system:system later on boot
|
|
write /sys/class/leds/vibrator/trigger "transient"
|
|
|
|
# This is used by Bionic to select optimized routines.
|
|
write /dev/cpu_variant:${ro.bionic.arch} ${ro.bionic.cpu_variant}
|
|
chmod 0444 /dev/cpu_variant:${ro.bionic.arch}
|
|
write /dev/cpu_variant:${ro.bionic.2nd_arch} ${ro.bionic.2nd_cpu_variant}
|
|
chmod 0444 /dev/cpu_variant:${ro.bionic.2nd_arch}
|
|
|
|
# Allow system processes to read / write power state.
|
|
chown system system /sys/power/state
|
|
chown system system /sys/power/wakeup_count
|
|
chmod 0660 /sys/power/state
|
|
|
|
chown radio wakelock /sys/power/wake_lock
|
|
chown radio wakelock /sys/power/wake_unlock
|
|
chmod 0660 /sys/power/wake_lock
|
|
chmod 0660 /sys/power/wake_unlock
|
|
|
|
# Start logd before any other services run to ensure we capture all of their logs.
|
|
start logd
|
|
# Start lmkd before any other services run so that it can register them
|
|
write /proc/sys/vm/watermark_boost_factor 0
|
|
chown root system /sys/module/lowmemorykiller/parameters/adj
|
|
chmod 0664 /sys/module/lowmemorykiller/parameters/adj
|
|
chown root system /sys/module/lowmemorykiller/parameters/minfree
|
|
chmod 0664 /sys/module/lowmemorykiller/parameters/minfree
|
|
start lmkd
|
|
|
|
# Start essential services.
|
|
start servicemanager
|
|
start hwservicemanager
|
|
start vndservicemanager
|
|
|
|
# Run boringssl self test for each ABI. Any failures trigger reboot to firmware.
|
|
import /system/etc/init/hw/init.boringssl.${ro.zygote}.rc
|
|
|
|
service boringssl_self_test32 /system/bin/boringssl_self_test32
|
|
reboot_on_failure reboot,boringssl-self-check-failed
|
|
stdio_to_kmsg
|
|
# Explicitly specify that boringssl_self_test32 doesn't require any capabilities
|
|
capabilities
|
|
user nobody
|
|
|
|
service boringssl_self_test64 /system/bin/boringssl_self_test64
|
|
reboot_on_failure reboot,boringssl-self-check-failed
|
|
stdio_to_kmsg
|
|
# Explicitly specify that boringssl_self_test64 doesn't require any capabilities
|
|
capabilities
|
|
user nobody
|
|
|
|
service boringssl_self_test_apex32 /apex/com.android.conscrypt/bin/boringssl_self_test32
|
|
reboot_on_failure reboot,boringssl-self-check-failed
|
|
stdio_to_kmsg
|
|
# Explicitly specify that boringssl_self_test_apex32 doesn't require any capabilities
|
|
capabilities
|
|
user nobody
|
|
|
|
service boringssl_self_test_apex64 /apex/com.android.conscrypt/bin/boringssl_self_test64
|
|
reboot_on_failure reboot,boringssl-self-check-failed
|
|
stdio_to_kmsg
|
|
# Explicitly specify that boringssl_self_test_apex64 doesn't require any capabilities
|
|
capabilities
|
|
user nobody
|
|
|
|
# Healthd can trigger a full boot from charger mode by signaling this
|
|
# property when the power button is held.
|
|
on property:sys.boot_from_charger_mode=1
|
|
class_stop charger
|
|
trigger late-init
|
|
|
|
# Indicate to fw loaders that the relevant mounts are up.
|
|
on firmware_mounts_complete
|
|
rm /dev/.booting
|
|
|
|
# Mount filesystems and start core system services.
|
|
on late-init
|
|
trigger early-fs
|
|
|
|
# Mount fstab in init.{$device}.rc by mount_all command. Optional parameter
|
|
# '--early' can be specified to skip entries with 'latemount'.
|
|
# /system and /vendor must be mounted by the end of the fs stage,
|
|
# while /data is optional.
|
|
trigger fs
|
|
trigger post-fs
|
|
|
|
# Mount fstab in init.{$device}.rc by mount_all with '--late' parameter
|
|
# to only mount entries with 'latemount'. This is needed if '--early' is
|
|
# specified in the previous mount_all command on the fs stage.
|
|
# With /system mounted and properties form /system + /factory available,
|
|
# some services can be started.
|
|
trigger late-fs
|
|
|
|
# Now we can mount /data. File encryption requires keymaster to decrypt
|
|
# /data, which in turn can only be loaded when system properties are present.
|
|
trigger post-fs-data
|
|
|
|
# Should be before netd, but after apex, properties and logging is available.
|
|
trigger load_bpf_programs
|
|
|
|
# Now we can start zygote.
|
|
trigger zygote-start
|
|
|
|
# Remove a file to wake up anything waiting for firmware.
|
|
trigger firmware_mounts_complete
|
|
|
|
trigger early-boot
|
|
trigger boot
|
|
|
|
on early-fs
|
|
# Once metadata has been mounted, we'll need vold to deal with userdata checkpointing
|
|
start vold
|
|
|
|
on post-fs
|
|
exec - system system -- /system/bin/vdc checkpoint markBootAttempt
|
|
|
|
# Once everything is setup, no need to modify /.
|
|
# The bind+remount combination allows this to work in containers.
|
|
mount rootfs rootfs / remount bind ro nodev
|
|
|
|
# Mount default storage into root namespace
|
|
mount none /mnt/user/0 /storage bind rec
|
|
mount none none /storage slave rec
|
|
|
|
# Make sure /sys/kernel/debug (if present) is labeled properly
|
|
# Note that tracefs may be mounted under debug, so we need to cross filesystems
|
|
restorecon --recursive --cross-filesystems /sys/kernel/debug
|
|
|
|
# We chown/chmod /cache again so because mount is run as root + defaults
|
|
chown system cache /cache
|
|
chmod 0770 /cache
|
|
# We restorecon /cache in case the cache partition has been reset.
|
|
restorecon_recursive /cache
|
|
|
|
# Create /cache/recovery in case it's not there. It'll also fix the odd
|
|
# permissions if created by the recovery system.
|
|
mkdir /cache/recovery 0770 system cache
|
|
|
|
# Backup/restore mechanism uses the cache partition
|
|
mkdir /cache/backup_stage 0700 system system
|
|
mkdir /cache/backup 0700 system system
|
|
|
|
#change permissions on vmallocinfo so we can grab it from bugreports
|
|
chown root log /proc/vmallocinfo
|
|
chmod 0440 /proc/vmallocinfo
|
|
|
|
chown root log /proc/slabinfo
|
|
chmod 0440 /proc/slabinfo
|
|
|
|
chown root log /proc/pagetypeinfo
|
|
chmod 0440 /proc/pagetypeinfo
|
|
|
|
#change permissions on kmsg & sysrq-trigger so bugreports can grab kthread stacks
|
|
chown root system /proc/kmsg
|
|
chmod 0440 /proc/kmsg
|
|
chown root system /proc/sysrq-trigger
|
|
chmod 0220 /proc/sysrq-trigger
|
|
chown system log /proc/last_kmsg
|
|
chmod 0440 /proc/last_kmsg
|
|
|
|
# make the selinux kernel policy world-readable
|
|
chmod 0444 /sys/fs/selinux/policy
|
|
|
|
# create the lost+found directories, so as to enforce our permissions
|
|
mkdir /cache/lost+found 0770 root root
|
|
|
|
restorecon_recursive /metadata
|
|
mkdir /metadata/vold
|
|
chmod 0700 /metadata/vold
|
|
mkdir /metadata/password_slots 0771 root system
|
|
mkdir /metadata/bootstat 0750 system log
|
|
mkdir /metadata/ota 0750 root system
|
|
mkdir /metadata/ota/snapshots 0750 root system
|
|
mkdir /metadata/userspacereboot 0770 root system
|
|
mkdir /metadata/watchdog 0770 root system
|
|
|
|
mkdir /metadata/apex 0700 root system
|
|
mkdir /metadata/apex/sessions 0700 root system
|
|
# On some devices we see a weird behaviour in which /metadata/apex doesn't
|
|
# have a correct label. To workaround this bug, explicitly call restorecon
|
|
# on /metadata/apex. For most of the boot sequences /metadata/apex will
|
|
# already have a correct selinux label, meaning that this call will be a
|
|
# no-op.
|
|
restorecon_recursive /metadata/apex
|
|
|
|
mkdir /metadata/staged-install 0770 root system
|
|
on late-fs
|
|
# Ensure that tracefs has the correct permissions.
|
|
# This does not work correctly if it is called in post-fs.
|
|
chmod 0755 /sys/kernel/tracing
|
|
chmod 0755 /sys/kernel/debug/tracing
|
|
|
|
# HALs required before storage encryption can get unlocked (FBE)
|
|
class_start early_hal
|
|
|
|
# Load trusted keys from dm-verity protected partitions
|
|
exec -- /system/bin/fsverity_init --load-verified-keys
|
|
|
|
# Only enable the bootreceiver tracing instance for kernels 5.10 and above.
|
|
on late-fs && property:ro.kernel.version=4.9
|
|
setprop bootreceiver.enable 0
|
|
on late-fs && property:ro.kernel.version=4.14
|
|
setprop bootreceiver.enable 0
|
|
on late-fs && property:ro.kernel.version=4.19
|
|
setprop bootreceiver.enable 0
|
|
on late-fs && property:ro.kernel.version=5.4
|
|
setprop bootreceiver.enable 0
|
|
on late-fs
|
|
# Bootreceiver tracing instance is enabled by default.
|
|
setprop bootreceiver.enable ${bootreceiver.enable:-1}
|
|
|
|
on property:ro.product.cpu.abilist64=* && property:bootreceiver.enable=1
|
|
# Set up a tracing instance for system_server to monitor error_report_end events.
|
|
# These are sent by kernel tools like KASAN and KFENCE when a memory corruption
|
|
# is detected. This is only needed for 64-bit systems.
|
|
mkdir /sys/kernel/tracing/instances/bootreceiver 0700 system system
|
|
restorecon_recursive /sys/kernel/tracing/instances/bootreceiver
|
|
write /sys/kernel/tracing/instances/bootreceiver/buffer_size_kb 1
|
|
write /sys/kernel/tracing/instances/bootreceiver/trace_options disable_on_free
|
|
write /sys/kernel/tracing/instances/bootreceiver/events/error_report/error_report_end/enable 1
|
|
|
|
on post-fs-data
|
|
|
|
mark_post_data
|
|
|
|
# Start checkpoint before we touch data
|
|
exec - system system -- /system/bin/vdc checkpoint prepareCheckpoint
|
|
|
|
# We chown/chmod /data again so because mount is run as root + defaults
|
|
chown system system /data
|
|
chmod 0771 /data
|
|
# We restorecon /data in case the userdata partition has been reset.
|
|
restorecon /data
|
|
|
|
# Make sure we have the device encryption key.
|
|
installkey /data
|
|
|
|
# Start bootcharting as soon as possible after the data partition is
|
|
# mounted to collect more data.
|
|
mkdir /data/bootchart 0755 shell shell encryption=Require
|
|
bootchart start
|
|
|
|
# Avoid predictable entropy pool. Carry over entropy from previous boot.
|
|
copy /data/system/entropy.dat /dev/urandom
|
|
|
|
mkdir /data/vendor 0771 root root encryption=Require
|
|
mkdir /data/vendor/hardware 0771 root root
|
|
|
|
# Start tombstoned early to be able to store tombstones.
|
|
mkdir /data/anr 0775 system system encryption=Require
|
|
mkdir /data/tombstones 0771 system system encryption=Require
|
|
mkdir /data/vendor/tombstones 0771 root root
|
|
mkdir /data/vendor/tombstones/wifi 0771 wifi wifi
|
|
start tombstoned
|
|
|
|
# Make sure that apexd is started in the default namespace
|
|
enter_default_mount_ns
|
|
|
|
# set up keystore directory structure first so that we can end early boot
|
|
# and start apexd
|
|
mkdir /data/misc 01771 system misc encryption=Require
|
|
mkdir /data/misc/keystore 0700 keystore keystore
|
|
# work around b/183668221
|
|
restorecon /data/misc /data/misc/keystore
|
|
|
|
# Boot level 30
|
|
# odsign signing keys have MAX_BOOT_LEVEL=30
|
|
# This is currently the earliest boot level, but we start at 30
|
|
# to leave room for earlier levels.
|
|
setprop keystore.boot_level 30
|
|
|
|
# Now that /data is mounted and we have created /data/misc/keystore,
|
|
# we can tell keystore to stop allowing use of early-boot keys,
|
|
# and access its database for the first time to support creation and
|
|
# use of MAX_BOOT_LEVEL keys.
|
|
exec - system system -- /system/bin/vdc keymaster earlyBootEnded
|
|
|
|
# Multi-installed APEXes are selected using persist props.
|
|
# Load persist properties and override properties (if enabled) from /data,
|
|
# before starting apexd.
|
|
# /data/property should be created before `load_persist_props`
|
|
mkdir /data/property 0700 root root encryption=Require
|
|
load_persist_props
|
|
|
|
start logd
|
|
start logd-reinit
|
|
|
|
# Some existing vendor rc files use 'on load_persist_props_action' to know
|
|
# when persist props are ready. These are difficult to change due to GRF,
|
|
# so continue triggering this action here even though props are already loaded
|
|
# by the 'load_persist_props' call above.
|
|
trigger load_persist_props_action
|
|
|
|
# /data/apex is now available. Start apexd to scan and activate APEXes.
|
|
#
|
|
# To handle userspace reboots, make sure that apexd is started cleanly here
|
|
# (set apexd.status="") and that it is restarted if it's already running.
|
|
#
|
|
# /data/apex uses encryption=None because direct I/O support is needed on
|
|
# APEX files, but some devices don't support direct I/O on encrypted files.
|
|
# Also, APEXes are public information, similar to the system image.
|
|
# /data/apex/decompressed and /data/apex/ota_reserved override this setting;
|
|
# they are encrypted so that files in them can be hard-linked into
|
|
# /data/rollback which is encrypted.
|
|
mkdir /data/apex 0755 root system encryption=None
|
|
mkdir /data/apex/active 0755 root system
|
|
mkdir /data/apex/backup 0700 root system
|
|
mkdir /data/apex/decompressed 0755 root system encryption=Require
|
|
mkdir /data/apex/hashtree 0700 root system
|
|
mkdir /data/apex/sessions 0700 root system
|
|
mkdir /data/app-staging 0751 system system encryption=DeleteIfNecessary
|
|
mkdir /data/apex/ota_reserved 0700 root system encryption=Require
|
|
setprop apexd.status ""
|
|
restart apexd
|
|
|
|
# create rest of basic filesystem structure
|
|
mkdir /data/misc/recovery 0770 system log
|
|
copy /data/misc/recovery/ro.build.fingerprint /data/misc/recovery/ro.build.fingerprint.1
|
|
chmod 0440 /data/misc/recovery/ro.build.fingerprint.1
|
|
chown system log /data/misc/recovery/ro.build.fingerprint.1
|
|
write /data/misc/recovery/ro.build.fingerprint ${ro.build.fingerprint}
|
|
chmod 0440 /data/misc/recovery/ro.build.fingerprint
|
|
chown system log /data/misc/recovery/ro.build.fingerprint
|
|
mkdir /data/misc/recovery/proc 0770 system log
|
|
copy /data/misc/recovery/proc/version /data/misc/recovery/proc/version.1
|
|
chmod 0440 /data/misc/recovery/proc/version.1
|
|
chown system log /data/misc/recovery/proc/version.1
|
|
copy /proc/version /data/misc/recovery/proc/version
|
|
chmod 0440 /data/misc/recovery/proc/version
|
|
chown system log /data/misc/recovery/proc/version
|
|
mkdir /data/misc/bluedroid 02770 bluetooth bluetooth
|
|
# Fix the access permissions and group ownership for 'bt_config.conf'
|
|
chmod 0660 /data/misc/bluedroid/bt_config.conf
|
|
chown bluetooth bluetooth /data/misc/bluedroid/bt_config.conf
|
|
mkdir /data/misc/bluetooth 0770 bluetooth bluetooth
|
|
mkdir /data/misc/bluetooth/logs 0770 bluetooth bluetooth
|
|
mkdir /data/misc/nfc 0770 nfc nfc
|
|
mkdir /data/misc/nfc/logs 0770 nfc nfc
|
|
mkdir /data/misc/credstore 0700 credstore credstore
|
|
mkdir /data/misc/gatekeeper 0700 system system
|
|
mkdir /data/misc/keychain 0771 system system
|
|
mkdir /data/misc/net 0750 root shell
|
|
mkdir /data/misc/radio 0770 system radio
|
|
mkdir /data/misc/sms 0770 system radio
|
|
mkdir /data/misc/carrierid 0770 system radio
|
|
mkdir /data/misc/apns 0770 system radio
|
|
mkdir /data/misc/emergencynumberdb 0770 system radio
|
|
mkdir /data/misc/network_watchlist 0774 system system
|
|
mkdir /data/misc/textclassifier 0771 system system
|
|
mkdir /data/misc/vpn 0770 system vpn
|
|
mkdir /data/misc/shared_relro 0771 shared_relro shared_relro
|
|
mkdir /data/misc/systemkeys 0700 system system
|
|
mkdir /data/misc/threadnetwork 0770 thread_network thread_network
|
|
mkdir /data/misc/wifi 0770 wifi wifi
|
|
mkdir /data/misc/wifi/sockets 0770 wifi wifi
|
|
mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi
|
|
mkdir /data/misc/ethernet 0770 system system
|
|
mkdir /data/misc/dhcp 0770 dhcp dhcp
|
|
mkdir /data/misc/user 0771 root root
|
|
# give system access to wpa_supplicant.conf for backup and restore
|
|
chmod 0660 /data/misc/wifi/wpa_supplicant.conf
|
|
mkdir /data/local 0751 root root encryption=Require
|
|
mkdir /data/misc/media 0700 media media
|
|
mkdir /data/misc/audioserver 0700 audioserver audioserver
|
|
mkdir /data/misc/cameraserver 0700 cameraserver cameraserver
|
|
mkdir /data/misc/vold 0700 root root
|
|
mkdir /data/misc/boottrace 0771 system shell
|
|
mkdir /data/misc/update_engine 0700 root root
|
|
mkdir /data/misc/update_engine_log 02750 root log
|
|
mkdir /data/misc/trace 0700 root root
|
|
# create location to store surface and window trace files
|
|
mkdir /data/misc/wmtrace 0700 system system
|
|
# create location to store accessibility trace files
|
|
mkdir /data/misc/a11ytrace 0700 system system
|
|
# profile file layout
|
|
mkdir /data/misc/profiles 0771 system system
|
|
mkdir /data/misc/profiles/cur 0771 system system
|
|
mkdir /data/misc/profiles/ref 0771 system system
|
|
mkdir /data/misc/profman 0770 system shell
|
|
mkdir /data/misc/gcov 0770 root root
|
|
mkdir /data/misc/installd 0700 root root
|
|
mkdir /data/misc/apexdata 0711 root root
|
|
mkdir /data/misc/apexrollback 0700 root root
|
|
mkdir /data/misc/appcompat/ 0700 system system
|
|
mkdir /data/misc/snapshotctl_log 0755 root root
|
|
# create location to store pre-reboot information
|
|
mkdir /data/misc/prereboot 0700 system system
|
|
# directory used for on-device refresh metrics file.
|
|
mkdir /data/misc/odrefresh 0777 system system
|
|
# directory used for on-device signing key blob
|
|
mkdir /data/misc/odsign 0710 root system
|
|
# directory used for odsign metrics
|
|
mkdir /data/misc/odsign/metrics 0770 root system
|
|
|
|
# Directory for VirtualizationService temporary image files.
|
|
# Delete any stale files owned by the old virtualizationservice uid (b/230056726).
|
|
chmod 0770 /data/misc/virtualizationservice
|
|
exec - virtualizationservice system -- /bin/rm -rf /data/misc/virtualizationservice
|
|
mkdir /data/misc/virtualizationservice 0771 system system
|
|
|
|
# /data/preloads uses encryption=None because it only contains preloaded
|
|
# files that are public information, similar to the system image.
|
|
mkdir /data/preloads 0775 system system encryption=None
|
|
|
|
# For security reasons, /data/local/tmp should always be empty.
|
|
# Do not place files or directories in /data/local/tmp
|
|
mkdir /data/local/tmp 0771 shell shell
|
|
mkdir /data/local/traces 0777 shell shell
|
|
mkdir /data/app-private 0771 system system encryption=Require
|
|
mkdir /data/app-ephemeral 0771 system system encryption=Require
|
|
mkdir /data/app-asec 0700 root root encryption=Require
|
|
mkdir /data/app-lib 0771 system system encryption=Require
|
|
mkdir /data/app 0771 system system encryption=Require
|
|
|
|
# create directory for updated font files.
|
|
mkdir /data/fonts/ 0771 root root encryption=Require
|
|
mkdir /data/fonts/files 0771 system system
|
|
mkdir /data/fonts/config 0770 system system
|
|
|
|
# Create directories to push tests to for each linker namespace.
|
|
# Create the subdirectories in case the first test is run as root
|
|
# so it doesn't end up owned by root.
|
|
# Set directories to be executable by any process so that debuggerd,
|
|
# aka crash_dump, can read any executables/shared libraries.
|
|
mkdir /data/local/tests 0701 shell shell
|
|
mkdir /data/local/tests/product 0701 shell shell
|
|
mkdir /data/local/tests/system 0701 shell shell
|
|
mkdir /data/local/tests/unrestricted 0701 shell shell
|
|
mkdir /data/local/tests/vendor 0701 shell shell
|
|
|
|
# create dalvik-cache, so as to enforce our permissions
|
|
mkdir /data/dalvik-cache 0771 root root encryption=Require
|
|
# create the A/B OTA directory, so as to enforce our permissions
|
|
mkdir /data/ota 0771 root root encryption=Require
|
|
|
|
# create the OTA package directory. It will be accessed by GmsCore (cache
|
|
# group), update_engine and update_verifier.
|
|
mkdir /data/ota_package 0770 system cache encryption=Require
|
|
|
|
# create resource-cache and double-check the perms
|
|
mkdir /data/resource-cache 0771 system system encryption=Require
|
|
chown system system /data/resource-cache
|
|
chmod 0771 /data/resource-cache
|
|
|
|
# Ensure that lost+found exists and has the correct permissions. Linux
|
|
# filesystems expect this directory to exist; it's where the fsck tool puts
|
|
# any recovered files that weren't present in any directory. It must be
|
|
# unencrypted, as fsck must be able to write to it.
|
|
mkdir /data/lost+found 0770 root root encryption=None
|
|
|
|
# create directory for DRM plug-ins - give drm the read/write access to
|
|
# the following directory.
|
|
mkdir /data/drm 0770 drm drm encryption=Require
|
|
|
|
# create directory for MediaDrm plug-ins - give drm the read/write access to
|
|
# the following directory.
|
|
mkdir /data/mediadrm 0770 mediadrm mediadrm encryption=Require
|
|
|
|
# NFC: create data/nfc for nv storage
|
|
mkdir /data/nfc 0770 nfc nfc encryption=Require
|
|
mkdir /data/nfc/param 0770 nfc nfc
|
|
|
|
# Create all remaining /data root dirs so that they are made through init
|
|
# and get proper encryption policy installed
|
|
mkdir /data/backup 0700 system system encryption=Require
|
|
mkdir /data/ss 0700 system system encryption=Require
|
|
|
|
mkdir /data/system 0775 system system encryption=Require
|
|
mkdir /data/system/environ 0700 system system
|
|
# b/183861600 attempt to fix selinux label before running derive_classpath service
|
|
restorecon /data/system/environ
|
|
mkdir /data/system/dropbox 0700 system system
|
|
mkdir /data/system/heapdump 0700 system system
|
|
mkdir /data/system/users 0775 system system
|
|
# Mkdir and set SELinux security contexts for shutdown-checkpoints.
|
|
# TODO(b/270286197): remove these after couple releases.
|
|
mkdir /data/system/shutdown-checkpoints 0700 system system
|
|
restorecon_recursive /data/system/shutdown-checkpoints
|
|
|
|
# Create the parent directories of the user CE and DE storage directories.
|
|
# These parent directories must use encryption=None, since each of their
|
|
# subdirectories uses a different encryption policy (a per-user one), and
|
|
# encryption policies apply recursively. These directories should never
|
|
# contain any subdirectories other than the per-user ones. /data/media/obb
|
|
# is an exception that exists for legacy reasons.
|
|
#
|
|
# Don't use any write mode bits (0222) for any of these directories, since
|
|
# the only process that should write to them directly is vold (since it
|
|
# needs to set up file-based encryption on the subdirectories), which runs
|
|
# as root with CAP_DAC_OVERRIDE. This is also fully enforced via the
|
|
# SELinux policy. But we also set the DAC file modes accordingly, to try to
|
|
# minimize differences in behavior if SELinux is set to permissive mode.
|
|
mkdir /data/media 0550 media_rw media_rw encryption=None
|
|
mkdir /data/misc_ce 0551 system misc encryption=None
|
|
mkdir /data/misc_de 0551 system misc encryption=None
|
|
mkdir /data/system_ce 0550 system system encryption=None
|
|
mkdir /data/system_de 0550 system system encryption=None
|
|
mkdir /data/user 0511 system system encryption=None
|
|
mkdir /data/user_de 0511 system system encryption=None
|
|
mkdir /data/vendor_ce 0551 root root encryption=None
|
|
mkdir /data/vendor_de 0551 root root encryption=None
|
|
|
|
# Set the casefold flag on /data/media. For upgrades, a restorecon can be
|
|
# needed first to relabel the directory from media_rw_data_file.
|
|
restorecon /data/media
|
|
exec - media_rw media_rw -- /system/bin/chattr +F /data/media
|
|
|
|
# A tmpfs directory, which will contain all apps and sdk sandbox CE and DE
|
|
# data directory that bind mount from the original source.
|
|
mount tmpfs tmpfs /data_mirror nodev noexec nosuid mode=0700,uid=0,gid=1000
|
|
restorecon /data_mirror
|
|
mkdir /data_mirror/data_ce 0700 root root
|
|
mkdir /data_mirror/data_de 0700 root root
|
|
mkdir /data_mirror/misc_ce 0700 root root
|
|
mkdir /data_mirror/misc_de 0700 root root
|
|
|
|
# Create CE and DE data directory for default volume
|
|
mkdir /data_mirror/data_ce/null 0700 root root
|
|
mkdir /data_mirror/data_de/null 0700 root root
|
|
mkdir /data_mirror/misc_ce/null 0700 root root
|
|
mkdir /data_mirror/misc_de/null 0700 root root
|
|
|
|
# Bind mount CE and DE data directory to mirror's default volume directory.
|
|
# Note that because the /data mount has the "shared" propagation type, the
|
|
# later bind mount of /data/data onto /data/user/0 will automatically
|
|
# propagate to /data_mirror/data_ce/null/0 as well.
|
|
mount none /data/user /data_mirror/data_ce/null bind rec
|
|
mount none /data/user_de /data_mirror/data_de/null bind rec
|
|
mount none /data/misc_ce /data_mirror/misc_ce/null bind rec
|
|
mount none /data/misc_de /data_mirror/misc_de/null bind rec
|
|
|
|
# Create mirror directory for jit profiles
|
|
mkdir /data_mirror/cur_profiles 0700 root root
|
|
mount none /data/misc/profiles/cur /data_mirror/cur_profiles bind rec
|
|
mkdir /data_mirror/ref_profiles 0700 root root
|
|
mount none /data/misc/profiles/ref /data_mirror/ref_profiles bind rec
|
|
|
|
mkdir /data/cache 0770 system cache encryption=Require
|
|
mkdir /data/cache/recovery 0770 system cache
|
|
mkdir /data/cache/backup_stage 0700 system system
|
|
mkdir /data/cache/backup 0700 system system
|
|
|
|
# Delete these if need be, per b/139193659
|
|
mkdir /data/rollback 0700 system system encryption=DeleteIfNecessary
|
|
mkdir /data/rollback-observer 0700 system system encryption=DeleteIfNecessary
|
|
mkdir /data/rollback-history 0700 system system encryption=DeleteIfNecessary
|
|
|
|
# Create root dir for Incremental Service
|
|
mkdir /data/incremental 0771 system system encryption=Require
|
|
|
|
# Create directories for statsd
|
|
mkdir /data/misc/stats-active-metric/ 0770 statsd system
|
|
mkdir /data/misc/stats-data/ 0770 statsd system
|
|
mkdir /data/misc/stats-data/restricted-data 0770 statsd system
|
|
mkdir /data/misc/stats-metadata/ 0770 statsd system
|
|
mkdir /data/misc/stats-service/ 0770 statsd system
|
|
mkdir /data/misc/train-info/ 0770 statsd system
|
|
|
|
# Wait for apexd to finish activating APEXes before starting more processes.
|
|
wait_for_prop apexd.status activated
|
|
perform_apex_config
|
|
|
|
# Create directories for boot animation.
|
|
mkdir /data/misc/bootanim 0755 system system encryption=DeleteIfNecessary
|
|
|
|
exec_start derive_sdk
|
|
|
|
init_user0
|
|
|
|
# Set SELinux security contexts on upgrade or policy update.
|
|
restorecon --recursive --skip-ce /data
|
|
|
|
# Define and export *CLASSPATH variables
|
|
# Must start before 'odsign', as odsign depends on *CLASSPATH variables
|
|
exec_start derive_classpath
|
|
load_exports /data/system/environ/classpath
|
|
|
|
# Start ART's oneshot boot service to propagate boot experiment flags to
|
|
# dalvik.vm.*. This needs to be done before odsign since odrefresh uses and
|
|
# validates those properties against the signed cache-info.xml.
|
|
exec_start art_boot
|
|
|
|
# Start the on-device signing daemon, and wait for it to finish, to ensure
|
|
# ART artifacts are generated if needed.
|
|
# Must start after 'derive_classpath' to have *CLASSPATH variables set.
|
|
start odsign
|
|
|
|
# Wait for odsign to be done with the key.
|
|
wait_for_prop odsign.key.done 1
|
|
|
|
# Bump the boot level to 1000000000; this prevents further on-device signing.
|
|
# This is a special value that shuts down the thread which listens for
|
|
# further updates.
|
|
setprop keystore.boot_level 1000000000
|
|
|
|
# Allow apexd to snapshot and restore device encrypted apex data in the case
|
|
# of a rollback. This should be done immediately after DE_user data keys
|
|
# are loaded. APEXes should not access this data until this has been
|
|
# completed and apexd.status becomes "ready".
|
|
exec_start apexd-snapshotde
|
|
|
|
# sys.memfd_use set to false by default, which keeps it disabled
|
|
# until it is confirmed that apps and vendor processes don't make
|
|
# IOCTLs on ashmem fds any more.
|
|
setprop sys.use_memfd false
|
|
|
|
# Set fscklog permission
|
|
chown root system /dev/fscklogs/log
|
|
chmod 0770 /dev/fscklogs/log
|
|
|
|
# Enable FUSE by default
|
|
setprop persist.sys.fuse true
|
|
|
|
# Update dm-verity state and set partition.*.verified properties.
|
|
verity_update_state
|
|
|
|
# It is recommended to put unnecessary data/ initialization from post-fs-data
|
|
# to start-zygote in device's init.rc to unblock zygote start.
|
|
on zygote-start
|
|
wait_for_prop odsign.verification.done 1
|
|
# A/B update verifier that marks a successful boot.
|
|
exec_start update_verifier
|
|
start statsd
|
|
start netd
|
|
start zygote
|
|
start zygote_secondary
|
|
|
|
on boot && property:ro.config.low_ram=true
|
|
# Tweak background writeout
|
|
write /proc/sys/vm/dirty_expire_centisecs 200
|
|
write /proc/sys/vm/dirty_background_ratio 5
|
|
|
|
on boot
|
|
# basic network init
|
|
ifup lo
|
|
hostname localhost
|
|
domainname localdomain
|
|
|
|
# IPsec SA default expiration length
|
|
write /proc/sys/net/core/xfrm_acq_expires 3600
|
|
|
|
# Memory management. Basic kernel parameters, and allow the high
|
|
# level system server to be able to adjust the kernel OOM driver
|
|
# parameters to match how it is managing things.
|
|
write /proc/sys/vm/overcommit_memory 1
|
|
write /proc/sys/vm/min_free_order_shift 4
|
|
|
|
# System server manages zram writeback
|
|
chown root system /sys/block/zram0/idle
|
|
chmod 0664 /sys/block/zram0/idle
|
|
chown root system /sys/block/zram0/writeback
|
|
chmod 0664 /sys/block/zram0/writeback
|
|
|
|
# to access F2FS sysfs on dm-<num> directly
|
|
mkdir /dev/sys/fs/by-name 0755 system system
|
|
symlink /sys/fs/f2fs/${dev.mnt.dev.data} /dev/sys/fs/by-name/userdata
|
|
|
|
# dev.mnt.dev.data=dm-N, dev.mnt.blk.data=sdaN/mmcblk0pN, dev.mnt.rootdisk.data=sda/mmcblk0, or
|
|
# dev.mnt.dev.data=sdaN/mmcblk0pN, dev.mnt.blk.data=sdaN/mmcblk0pN, dev.mnt.rootdisk.data=sda/mmcblk0
|
|
mkdir /dev/sys/block/by-name 0755 system system
|
|
symlink /sys/class/block/${dev.mnt.dev.data} /dev/sys/block/by-name/userdata
|
|
symlink /sys/class/block/${dev.mnt.rootdisk.data} /dev/sys/block/by-name/rootdisk
|
|
|
|
# F2FS tuning. Set cp_interval larger than dirty_expire_centisecs, 30 secs,
|
|
# to avoid power consumption when system becomes mostly idle. Be careful
|
|
# to make it too large, since it may bring userdata loss, if they
|
|
# are not aware of using fsync()/sync() to prepare sudden power-cut.
|
|
write /dev/sys/fs/by-name/userdata/cp_interval 200
|
|
write /dev/sys/fs/by-name/userdata/gc_urgent_sleep_time 50
|
|
write /dev/sys/fs/by-name/userdata/iostat_period_ms 1000
|
|
write /dev/sys/fs/by-name/userdata/iostat_enable 1
|
|
|
|
# set readahead multiplier for POSIX_FADV_SEQUENTIAL files
|
|
write /dev/sys/fs/by-name/userdata/seq_file_ra_mul 128
|
|
|
|
# limit discard size to 128MB in order to avoid long IO latency
|
|
# for filesystem tuning first (dm or sda)
|
|
# this requires enabling selinux entry for sda/mmcblk0 in vendor side
|
|
write /dev/sys/block/by-name/userdata/queue/discard_max_bytes 134217728
|
|
write /dev/sys/block/by-name/rootdisk/queue/discard_max_bytes 134217728
|
|
|
|
# Permissions for System Server and daemons.
|
|
chown system system /sys/power/autosleep
|
|
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_rate
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_rate
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_slack
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_slack
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/target_loads
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/target_loads
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/boost
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boost
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/input_boost
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/input_boost
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
|
|
chown system system /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
|
|
chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
|
|
|
|
chown system system /sys/class/leds/vibrator/trigger
|
|
chown system system /sys/class/leds/vibrator/activate
|
|
chown system system /sys/class/leds/vibrator/brightness
|
|
chown system system /sys/class/leds/vibrator/duration
|
|
chown system system /sys/class/leds/vibrator/state
|
|
chown system system /sys/class/timed_output/vibrator/enable
|
|
chown system system /sys/class/leds/keyboard-backlight/brightness
|
|
chown system system /sys/class/leds/lcd-backlight/brightness
|
|
chown system system /sys/class/leds/button-backlight/brightness
|
|
chown system system /sys/class/leds/jogball-backlight/brightness
|
|
chown system system /sys/class/leds/red/brightness
|
|
chown system system /sys/class/leds/green/brightness
|
|
chown system system /sys/class/leds/blue/brightness
|
|
chown system system /sys/class/leds/red/device/grpfreq
|
|
chown system system /sys/class/leds/red/device/grppwm
|
|
chown system system /sys/class/leds/red/device/blink
|
|
chown system system /sys/module/sco/parameters/disable_esco
|
|
chown system system /sys/kernel/ipv4/tcp_wmem_min
|
|
chown system system /sys/kernel/ipv4/tcp_wmem_def
|
|
chown system system /sys/kernel/ipv4/tcp_wmem_max
|
|
chown system system /sys/kernel/ipv4/tcp_rmem_min
|
|
chown system system /sys/kernel/ipv4/tcp_rmem_def
|
|
chown system system /sys/kernel/ipv4/tcp_rmem_max
|
|
chown root radio /proc/cmdline
|
|
chown root system /proc/bootconfig
|
|
|
|
# Define default initial receive window size in segments.
|
|
setprop net.tcp_def_init_rwnd 60
|
|
|
|
# Start standard binderized HAL daemons
|
|
class_start hal
|
|
|
|
class_start core
|
|
|
|
on nonencrypted
|
|
class_start main
|
|
class_start late_start
|
|
|
|
on property:sys.init_log_level=*
|
|
loglevel ${sys.init_log_level}
|
|
|
|
on charger
|
|
class_start charger
|
|
|
|
on property:sys.boot_completed=1
|
|
bootchart stop
|
|
# Setup per_boot directory so other .rc could start to use it on boot_completed
|
|
exec - system system -- /bin/rm -rf /data/per_boot
|
|
mkdir /data/per_boot 0700 system system encryption=Require key=per_boot_ref
|
|
|
|
# system server cannot write to /proc/sys files,
|
|
# and chown/chmod does not work for /proc/sys/ entries.
|
|
# So proxy writes through init.
|
|
on property:sys.sysctl.extra_free_kbytes=*
|
|
exec -- /system/bin/extra_free_kbytes.sh ${sys.sysctl.extra_free_kbytes}
|
|
|
|
# Allow users to drop caches
|
|
on property:perf.drop_caches=3
|
|
write /proc/sys/vm/drop_caches 3
|
|
setprop perf.drop_caches 0
|
|
|
|
# "tcp_default_init_rwnd" Is too long!
|
|
on property:net.tcp_def_init_rwnd=*
|
|
write /proc/sys/net/ipv4/tcp_default_init_rwnd ${net.tcp_def_init_rwnd}
|
|
|
|
# perf_event_open syscall security:
|
|
# Newer kernels have the ability to control the use of the syscall via SELinux
|
|
# hooks. init tests for this, and sets sys_init.perf_lsm_hooks to 1 if the
|
|
# kernel has the hooks. In this case, the system-wide perf_event_paranoid
|
|
# sysctl is set to -1 (unrestricted use), and the SELinux policy is used for
|
|
# controlling access. On older kernels, the paranoid value is the only means of
|
|
# controlling access. It is normally 3 (allow only root), but the shell user
|
|
# can lower it to 1 (allowing thread-scoped pofiling) via security.perf_harden.
|
|
on load_bpf_programs && property:sys.init.perf_lsm_hooks=1
|
|
write /proc/sys/kernel/perf_event_paranoid -1
|
|
on property:security.perf_harden=0 && property:sys.init.perf_lsm_hooks=""
|
|
write /proc/sys/kernel/perf_event_paranoid 1
|
|
on property:security.perf_harden=1 && property:sys.init.perf_lsm_hooks=""
|
|
write /proc/sys/kernel/perf_event_paranoid 3
|
|
|
|
# Additionally, simpleperf profiler uses debug.* and security.perf_harden
|
|
# sysprops to be able to indirectly set these sysctls.
|
|
on property:security.perf_harden=0
|
|
write /proc/sys/kernel/perf_event_max_sample_rate ${debug.perf_event_max_sample_rate:-100000}
|
|
write /proc/sys/kernel/perf_cpu_time_max_percent ${debug.perf_cpu_time_max_percent:-25}
|
|
write /proc/sys/kernel/perf_event_mlock_kb ${debug.perf_event_mlock_kb:-516}
|
|
# Default values.
|
|
on property:security.perf_harden=1
|
|
write /proc/sys/kernel/perf_event_max_sample_rate 100000
|
|
write /proc/sys/kernel/perf_cpu_time_max_percent 25
|
|
write /proc/sys/kernel/perf_event_mlock_kb 516
|
|
|
|
# This property can be set only on userdebug/eng. See neverallow rule in
|
|
# /system/sepolicy/private/property.te .
|
|
on property:security.lower_kptr_restrict=1
|
|
write /proc/sys/kernel/kptr_restrict 0
|
|
|
|
on property:security.lower_kptr_restrict=0
|
|
write /proc/sys/kernel/kptr_restrict 2
|
|
|
|
|
|
# on shutdown
|
|
# In device's init.rc, this trigger can be used to do device-specific actions
|
|
# before shutdown. e.g disable watchdog and mask error handling
|
|
|
|
## Daemon processes to be run by init.
|
|
##
|
|
service ueventd /system/bin/ueventd
|
|
class core
|
|
critical
|
|
seclabel u:r:ueventd:s0
|
|
user root
|
|
shutdown critical
|
|
|
|
service console /system/bin/sh
|
|
class core
|
|
console
|
|
disabled
|
|
user shell
|
|
group shell log readproc
|
|
seclabel u:r:shell:s0
|
|
setenv HOSTNAME console
|
|
shutdown critical
|
|
|
|
on property:ro.debuggable=1
|
|
# Give writes to the same group for the trace folder on debug builds,
|
|
# it's further protected by selinux policy.
|
|
# The folder is used to store method traces.
|
|
chmod 0773 /data/misc/trace
|
|
# Give writes and reads to anyone for the window trace folder on debug builds,
|
|
# it's further protected by selinux policy.
|
|
chmod 0777 /data/misc/wmtrace
|
|
# Give reads to anyone for the accessibility trace folder on debug builds.
|
|
chmod 0775 /data/misc/a11ytrace
|
|
|
|
on init && property:ro.debuggable=1
|
|
start console
|
|
|
|
on userspace-reboot-requested
|
|
# TODO(b/135984674): reset all necessary properties here.
|
|
setprop sys.boot_completed ""
|
|
setprop dev.bootcomplete ""
|
|
setprop sys.init.updatable_crashing ""
|
|
setprop sys.init.updatable_crashing_process_name ""
|
|
setprop sys.user.0.ce_available ""
|
|
setprop sys.shutdown.requested ""
|
|
setprop service.bootanim.exit ""
|
|
setprop service.bootanim.progress ""
|
|
|
|
on userspace-reboot-fs-remount
|
|
# Make sure that vold is running.
|
|
# This is mostly a precaution measure in case vold for some reason wasn't running when
|
|
# userspace reboot was initiated.
|
|
start vold
|
|
exec - system system -- /system/bin/vdc checkpoint resetCheckpoint
|
|
exec - system system -- /system/bin/vdc checkpoint markBootAttempt
|
|
# Unmount /data_mirror mounts in the reverse order of corresponding mounts.
|
|
umount /data_mirror/data_ce/null/0
|
|
umount /data_mirror/data_ce/null
|
|
umount /data_mirror/data_de/null
|
|
umount /data_mirror/cur_profiles
|
|
umount /data_mirror/ref_profiles
|
|
umount /data_mirror
|
|
remount_userdata
|
|
start bootanim
|
|
|
|
on userspace-reboot-resume
|
|
trigger userspace-reboot-fs-remount
|
|
trigger post-fs-data
|
|
trigger zygote-start
|
|
trigger early-boot
|
|
trigger boot
|
|
|
|
on property:sys.boot_completed=1 && property:sys.init.userspace_reboot.in_progress=1
|
|
setprop sys.init.userspace_reboot.in_progress ""
|
|
|
|
# Multi-Gen LRU Experiment
|
|
on property:persist.device_config.mglru_native.lru_gen_config=none
|
|
write /sys/kernel/mm/lru_gen/enabled 0
|
|
on property:persist.device_config.mglru_native.lru_gen_config=core
|
|
write /sys/kernel/mm/lru_gen/enabled 1
|
|
on property:persist.device_config.mglru_native.lru_gen_config=core_and_mm_walk
|
|
write /sys/kernel/mm/lru_gen/enabled 3
|
|
on property:persist.device_config.mglru_native.lru_gen_config=core_and_nonleaf_young
|
|
write /sys/kernel/mm/lru_gen/enabled 5
|
|
on property:persist.device_config.mglru_native.lru_gen_config=all
|
|
write /sys/kernel/mm/lru_gen/enabled 7
|