507 lines
18 KiB
Plaintext
507 lines
18 KiB
Plaintext
# 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 /init.usb.rc
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import /init.${ro.hardware}.rc
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import /init.${ro.zygote}.rc
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import /init.trace.rc
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on early-init
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# Set init and its forked children's oom_adj.
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write /proc/1/oom_score_adj -1000
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# Set the security context of /adb_keys if present.
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restorecon /adb_keys
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# Shouldn't be necessary, but sdcard won't start without it. http://b/22568628.
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mkdir /mnt 0775 root system
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start ueventd
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on init
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sysclktz 0
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# Backward compatibility.
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symlink /system/etc /etc
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symlink /sys/kernel/debug /d
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# Link /vendor to /system/vendor for devices without a vendor partition.
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symlink /system/vendor /vendor
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# Mount cgroup mount point for cpu accounting
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mount cgroup none /acct cpuacct
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mkdir /acct/uid
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# Create cgroup mount point for memory
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mount tmpfs none /sys/fs/cgroup mode=0750,uid=0,gid=1000
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mkdir /sys/fs/cgroup/memory 0750 root system
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mount cgroup none /sys/fs/cgroup/memory memory
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write /sys/fs/cgroup/memory/memory.move_charge_at_immigrate 1
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chown root system /sys/fs/cgroup/memory/tasks
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chmod 0660 /sys/fs/cgroup/memory/tasks
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mkdir /sys/fs/cgroup/memory/sw 0750 root system
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write /sys/fs/cgroup/memory/sw/memory.swappiness 100
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write /sys/fs/cgroup/memory/sw/memory.move_charge_at_immigrate 1
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chown root system /sys/fs/cgroup/memory/sw/tasks
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chmod 0660 /sys/fs/cgroup/memory/sw/tasks
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# See storage config details at http://source.android.com/tech/storage/
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mkdir /mnt/shell 0700 shell shell
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mkdir /mnt/media_rw 0700 media_rw media_rw
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mkdir /storage 0751 root sdcard_r
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# Directory for putting things only root should see.
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mkdir /mnt/secure 0700 root root
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# Directory for staging bindmounts
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mkdir /mnt/secure/staging 0700 root root
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# Directory-target for where the secure container
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# imagefile directory will be bind-mounted
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mkdir /mnt/secure/asec 0700 root root
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# Secure container public mount points.
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mkdir /mnt/asec 0700 root system
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mount tmpfs tmpfs /mnt/asec mode=0755,gid=1000
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# Filesystem image public mount points.
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mkdir /mnt/obb 0700 root system
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mount tmpfs tmpfs /mnt/obb mode=0755,gid=1000
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# memory control cgroup
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mkdir /dev/memcg 0700 root system
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mount cgroup none /dev/memcg memory
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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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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_compat_yield 1
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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/kernel/kptr_restrict 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 300
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write /proc/sys/kernel/sched_rt_runtime_us 950000
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write /proc/sys/kernel/sched_rt_period_us 1000000
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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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# Create cgroup mount points for process groups
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mkdir /dev/cpuctl
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mount cgroup none /dev/cpuctl cpu
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chown system system /dev/cpuctl
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chown system system /dev/cpuctl/tasks
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chmod 0666 /dev/cpuctl/tasks
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write /dev/cpuctl/cpu.shares 1024
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write /dev/cpuctl/cpu.rt_runtime_us 800000
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write /dev/cpuctl/cpu.rt_period_us 1000000
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mkdir /dev/cpuctl/bg_non_interactive
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chown system system /dev/cpuctl/bg_non_interactive/tasks
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chmod 0666 /dev/cpuctl/bg_non_interactive/tasks
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# 5.0 %
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write /dev/cpuctl/bg_non_interactive/cpu.shares 52
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write /dev/cpuctl/bg_non_interactive/cpu.rt_runtime_us 700000
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write /dev/cpuctl/bg_non_interactive/cpu.rt_period_us 1000000
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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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# 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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# pstore/ramoops previous console log
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mount pstore pstore /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/pmsg-ramoops-0
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chmod 0440 /sys/fs/pstore/pmsg-ramoops-0
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# enable armv8_deprecated instruction hooks
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write /proc/sys/abi/swp 1
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# Healthd can trigger a full boot from charger mode by signaling this
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# property when the power button is held.
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on property:sys.boot_from_charger_mode=1
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class_stop charger
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trigger late-init
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# Load properties from /system/ + /factory after fs mount.
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on load_all_props_action
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load_all_props
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start logd
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start logd-reinit
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# Indicate to fw loaders that the relevant mounts are up.
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on firmware_mounts_complete
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rm /dev/.booting
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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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trigger fs
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trigger post-fs
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trigger post-fs-data
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# Load properties from /system/ + /factory after fs mount. Place
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# this in another action so that the load will be scheduled after the prior
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# issued fs triggers have completed.
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trigger load_all_props_action
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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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start logd
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# once everything is setup, no need to modify /
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mount rootfs rootfs / ro remount
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# mount shared so changes propagate into child namespaces
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mount rootfs rootfs / shared rec
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# We chown/chmod /cache again so because mount is run as root + defaults
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chown system cache /cache
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chmod 0770 /cache
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# We restorecon /cache in case the cache partition has been reset.
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restorecon_recursive /cache
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# Create /cache/recovery in case it's not there. It'll also fix the odd
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# permissions if created by the recovery system.
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mkdir /cache/recovery 0770 system cache
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#change permissions on vmallocinfo so we can grab it from bugreports
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chown root log /proc/vmallocinfo
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chmod 0440 /proc/vmallocinfo
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chown root log /proc/slabinfo
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chmod 0440 /proc/slabinfo
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#change permissions on kmsg & sysrq-trigger so bugreports can grab kthread stacks
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chown root system /proc/kmsg
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chmod 0440 /proc/kmsg
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chown root system /proc/sysrq-trigger
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chmod 0220 /proc/sysrq-trigger
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chown system log /proc/last_kmsg
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chmod 0440 /proc/last_kmsg
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# make the selinux kernel policy world-readable
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chmod 0444 /sys/fs/selinux/policy
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# create the lost+found directories, so as to enforce our permissions
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mkdir /cache/lost+found 0770 root root
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on post-fs-data
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# We chown/chmod /data again so because mount is run as root + defaults
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chown system system /data
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chmod 0771 /data
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# We restorecon /data in case the userdata partition has been reset.
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restorecon /data
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# Make sure we have the device encryption key
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start logd
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start vold
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installkey /data
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# Start bootcharting as soon as possible after the data partition is
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# mounted to collect more data.
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mkdir /data/bootchart 0755 shell shell
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bootchart_init
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# Avoid predictable entropy pool. Carry over entropy from previous boot.
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copy /data/system/entropy.dat /dev/urandom
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# create basic filesystem structure
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mkdir /data/misc 01771 system misc
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mkdir /data/misc/bluedroid 0770 bluetooth net_bt_stack
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mkdir /data/misc/bluetooth 0770 system system
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mkdir /data/misc/keystore 0700 keystore keystore
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mkdir /data/misc/gatekeeper 0700 system system
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mkdir /data/misc/keychain 0771 system system
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mkdir /data/misc/net 0750 root shell
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mkdir /data/misc/radio 0770 system radio
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mkdir /data/misc/sms 0770 system radio
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mkdir /data/misc/zoneinfo 0775 system system
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mkdir /data/misc/vpn 0770 system vpn
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mkdir /data/misc/shared_relro 0771 shared_relro shared_relro
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mkdir /data/misc/systemkeys 0700 system system
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mkdir /data/misc/wifi 0770 wifi wifi
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mkdir /data/misc/wifi/sockets 0770 wifi wifi
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mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi
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mkdir /data/misc/ethernet 0770 system system
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mkdir /data/misc/dhcp 0770 dhcp dhcp
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mkdir /data/misc/user 0771 root root
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mkdir /data/misc/perfprofd 0775 root root
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# give system access to wpa_supplicant.conf for backup and restore
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chmod 0660 /data/misc/wifi/wpa_supplicant.conf
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mkdir /data/local 0751 root root
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mkdir /data/misc/media 0700 media media
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mkdir /data/misc/boottrace 0771 system shell
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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/tmp 0771 shell shell
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mkdir /data/data 0771 system system
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mkdir /data/app-private 0771 system system
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mkdir /data/app-asec 0700 root root
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mkdir /data/app-lib 0771 system system
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mkdir /data/app 0771 system system
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mkdir /data/property 0700 root root
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mkdir /data/tombstones 0771 system system
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# create dalvik-cache, so as to enforce our permissions
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mkdir /data/dalvik-cache 0771 root root
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mkdir /data/dalvik-cache/profiles 0711 system system
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# create resource-cache and double-check the perms
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mkdir /data/resource-cache 0771 system system
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chown system system /data/resource-cache
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chmod 0771 /data/resource-cache
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# create the lost+found directories, so as to enforce our permissions
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mkdir /data/lost+found 0770 root root
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# create directory for DRM plug-ins - give drm the read/write access to
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# the following directory.
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mkdir /data/drm 0770 drm drm
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# create directory for MediaDrm plug-ins - give drm the read/write access to
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# the following directory.
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mkdir /data/mediadrm 0770 mediadrm mediadrm
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mkdir /data/anr 0775 system system
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# symlink to bugreport storage location
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symlink /data/data/com.android.shell/files/bugreports /data/bugreports
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# Separate location for storing security policy files on data
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mkdir /data/security 0711 system system
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# Create all remaining /data root dirs so that they are made through init
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# and get proper encryption policy installed
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mkdir /data/backup 0700 system system
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mkdir /data/media 0770 media_rw media_rw
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mkdir /data/ss 0700 system system
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mkdir /data/system 0775 system system
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mkdir /data/system/heapdump 0700 system system
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mkdir /data/user 0711 system system
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# Reload policy from /data/security if present.
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setprop selinux.reload_policy 1
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# Set SELinux security contexts on upgrade or policy update.
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restorecon_recursive /data
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# Check any timezone data in /data is newer than the copy in /system, delete if not.
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exec - system system -- /system/bin/tzdatacheck /system/usr/share/zoneinfo /data/misc/zoneinfo
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# If there is no fs-post-data action in the init.<device>.rc file, you
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# must uncomment this line, otherwise encrypted filesystems
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# won't work.
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# Set indication (checked by vold) that we have finished this action
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#setprop vold.post_fs_data_done 1
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on boot
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# basic network init
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ifup lo
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hostname localhost
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domainname localdomain
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# set RLIMIT_NICE to allow priorities from 19 to -20
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setrlimit 13 40 40
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# Memory management. Basic kernel parameters, and allow the high
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# level system server to be able to adjust the kernel OOM driver
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# parameters to match how it is managing things.
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write /proc/sys/vm/overcommit_memory 1
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write /proc/sys/vm/min_free_order_shift 4
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chown root system /sys/module/lowmemorykiller/parameters/adj
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chmod 0220 /sys/module/lowmemorykiller/parameters/adj
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chown root system /sys/module/lowmemorykiller/parameters/minfree
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chmod 0220 /sys/module/lowmemorykiller/parameters/minfree
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# Tweak background writeout
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write /proc/sys/vm/dirty_expire_centisecs 200
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write /proc/sys/vm/dirty_background_ratio 5
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# Permissions for System Server and daemons.
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chown radio system /sys/android_power/state
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chown radio system /sys/android_power/request_state
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chown radio system /sys/android_power/acquire_full_wake_lock
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chown radio system /sys/android_power/acquire_partial_wake_lock
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chown radio system /sys/android_power/release_wake_lock
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chown system system /sys/power/autosleep
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chown system system /sys/power/state
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chown system system /sys/power/wakeup_count
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chown radio system /sys/power/wake_lock
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chown radio system /sys/power/wake_unlock
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chmod 0660 /sys/power/state
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chmod 0660 /sys/power/wake_lock
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chmod 0660 /sys/power/wake_unlock
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chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_rate
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_rate
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chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_slack
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_slack
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chown system system /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
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chown system system /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
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chown system system /sys/devices/system/cpu/cpufreq/interactive/target_loads
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/target_loads
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chown system system /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
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chown system system /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
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chown system system /sys/devices/system/cpu/cpufreq/interactive/boost
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boost
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chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse
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chown system system /sys/devices/system/cpu/cpufreq/interactive/input_boost
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/input_boost
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chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
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chown system system /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
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chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
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# Assume SMP uses shared cpufreq policy for all CPUs
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chown system system /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
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chmod 0660 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
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chown system system /sys/class/timed_output/vibrator/enable
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chown system system /sys/class/leds/keyboard-backlight/brightness
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chown system system /sys/class/leds/lcd-backlight/brightness
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chown system system /sys/class/leds/button-backlight/brightness
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chown system system /sys/class/leds/jogball-backlight/brightness
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chown system system /sys/class/leds/red/brightness
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chown system system /sys/class/leds/green/brightness
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chown system system /sys/class/leds/blue/brightness
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chown system system /sys/class/leds/red/device/grpfreq
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chown system system /sys/class/leds/red/device/grppwm
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chown system system /sys/class/leds/red/device/blink
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chown system system /sys/class/timed_output/vibrator/enable
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chown system system /sys/module/sco/parameters/disable_esco
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chown system system /sys/kernel/ipv4/tcp_wmem_min
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chown system system /sys/kernel/ipv4/tcp_wmem_def
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chown system system /sys/kernel/ipv4/tcp_wmem_max
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chown system system /sys/kernel/ipv4/tcp_rmem_min
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chown system system /sys/kernel/ipv4/tcp_rmem_def
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chown system system /sys/kernel/ipv4/tcp_rmem_max
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chown root radio /proc/cmdline
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# Define default initial receive window size in segments.
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setprop net.tcp.default_init_rwnd 60
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class_start core
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on nonencrypted
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class_start main
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class_start late_start
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on property:vold.decrypt=trigger_default_encryption
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start defaultcrypto
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on property:vold.decrypt=trigger_encryption
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start surfaceflinger
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start encrypt
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on property:sys.init_log_level=*
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loglevel ${sys.init_log_level}
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on charger
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class_start charger
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on property:vold.decrypt=trigger_reset_main
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class_reset main
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on property:vold.decrypt=trigger_load_persist_props
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load_persist_props
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start logd
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start logd-reinit
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on property:vold.decrypt=trigger_post_fs_data
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trigger post-fs-data
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on property:vold.decrypt=trigger_restart_min_framework
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class_start main
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on property:vold.decrypt=trigger_restart_framework
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class_start main
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class_start late_start
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|
|
on property:vold.decrypt=trigger_shutdown_framework
|
|
class_reset late_start
|
|
class_reset main
|
|
|
|
on property:sys.powerctl=*
|
|
powerctl ${sys.powerctl}
|
|
|
|
# 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=*
|
|
write /proc/sys/vm/extra_free_kbytes ${sys.sysctl.extra_free_kbytes}
|
|
|
|
# "tcp_default_init_rwnd" Is too long!
|
|
on property:sys.sysctl.tcp_def_init_rwnd=*
|
|
write /proc/sys/net/ipv4/tcp_default_init_rwnd ${sys.sysctl.tcp_def_init_rwnd}
|
|
|
|
|
|
## Daemon processes to be run by init.
|
|
##
|
|
service ueventd /sbin/ueventd
|
|
class core
|
|
critical
|
|
seclabel u:r:ueventd:s0
|
|
|
|
service healthd /sbin/healthd
|
|
class core
|
|
critical
|
|
seclabel u:r:healthd:s0
|
|
|
|
service console /system/bin/sh
|
|
class core
|
|
console
|
|
disabled
|
|
user shell
|
|
group shell log
|
|
seclabel u:r:shell:s0
|
|
|
|
on property:ro.debuggable=1
|
|
start console
|
|
|
|
service flash_recovery /system/bin/install-recovery.sh
|
|
class main
|
|
oneshot
|
|
|
|
service uncrypt /system/bin/uncrypt
|
|
class main
|
|
disabled
|
|
oneshot
|
|
|
|
service pre-recovery /system/bin/uncrypt --reboot
|
|
class main
|
|
disabled
|
|
oneshot
|