init.rc revision 89c9c9b18bec440f1507e686f98af61e9b611cb7 
1# Copyright (C) 2012 The Android Open Source Project
2#
3# IMPORTANT: Do not create world writable files or directories.
4# This is a common source of Android security bugs.
5#
6
7import /init.environ.rc
8import /init.usb.rc
9import /init.${ro.hardware}.rc
10import /vendor/etc/init/hw/init.${ro.hardware}.rc
11import /init.usb.configfs.rc
12import /init.${ro.zygote}.rc
13
14on early-init
15    # Set init and its forked children's oom_adj.
16    write /proc/1/oom_score_adj -1000
17
18    # Disable sysrq from keyboard
19    write /proc/sys/kernel/sysrq 0
20
21    # Set the security context of /adb_keys if present.
22    restorecon /adb_keys
23
24    # Shouldn't be necessary, but sdcard won't start without it. http://b/22568628.
25    mkdir /mnt 0775 root system
26
27    # Set the security context of /postinstall if present.
28    restorecon /postinstall
29
30    # Mount cgroup mount point for cpu accounting
31    mount cgroup none /acct nodev noexec nosuid cpuacct
32    mkdir /acct/uid
33
34    # root memory control cgroup, used by lmkd
35    mkdir /dev/memcg 0700 root system
36    mount cgroup none /dev/memcg nodev noexec nosuid memory
37    # app mem cgroups, used by activity manager, lmkd and zygote
38    mkdir /dev/memcg/apps/ 0755 system system
39    # cgroup for system_server and surfaceflinger
40    mkdir /dev/memcg/system 0550 system system
41
42    start ueventd
43
44on init
45    sysclktz 0
46
47    # Mix device-specific information into the entropy pool
48    copy /proc/cmdline /dev/urandom
49    copy /default.prop /dev/urandom
50
51    symlink /system/bin /bin
52    symlink /system/etc /etc
53
54    # Backward compatibility.
55    symlink /sys/kernel/debug /d
56
57    # Link /vendor to /system/vendor for devices without a vendor partition.
58    symlink /system/vendor /vendor
59
60    # Create energy-aware scheduler tuning nodes
61    mkdir /dev/stune
62    mount cgroup none /dev/stune nodev noexec nosuid schedtune
63    mkdir /dev/stune/foreground
64    mkdir /dev/stune/background
65    mkdir /dev/stune/top-app
66    mkdir /dev/stune/rt
67    chown system system /dev/stune
68    chown system system /dev/stune/foreground
69    chown system system /dev/stune/background
70    chown system system /dev/stune/top-app
71    chown system system /dev/stune/rt
72    chown system system /dev/stune/tasks
73    chown system system /dev/stune/foreground/tasks
74    chown system system /dev/stune/background/tasks
75    chown system system /dev/stune/top-app/tasks
76    chown system system /dev/stune/rt/tasks
77    chmod 0664 /dev/stune/tasks
78    chmod 0664 /dev/stune/foreground/tasks
79    chmod 0664 /dev/stune/background/tasks
80    chmod 0664 /dev/stune/top-app/tasks
81    chmod 0664 /dev/stune/rt/tasks
82
83    # Mount staging areas for devices managed by vold
84    # See storage config details at http://source.android.com/tech/storage/
85    mount tmpfs tmpfs /mnt nodev noexec nosuid mode=0755,uid=0,gid=1000
86    restorecon_recursive /mnt
87
88    mount configfs none /config nodev noexec nosuid
89    chmod 0770 /config/sdcardfs
90    chown system package_info /config/sdcardfs
91
92    mkdir /mnt/secure 0700 root root
93    mkdir /mnt/secure/asec 0700 root root
94    mkdir /mnt/asec 0755 root system
95    mkdir /mnt/obb 0755 root system
96    mkdir /mnt/media_rw 0750 root media_rw
97    mkdir /mnt/user 0755 root root
98    mkdir /mnt/user/0 0755 root root
99    mkdir /mnt/expand 0771 system system
100    mkdir /mnt/appfuse 0711 root root
101
102    # Storage views to support runtime permissions
103    mkdir /mnt/runtime 0700 root root
104    mkdir /mnt/runtime/default 0755 root root
105    mkdir /mnt/runtime/default/self 0755 root root
106    mkdir /mnt/runtime/read 0755 root root
107    mkdir /mnt/runtime/read/self 0755 root root
108    mkdir /mnt/runtime/write 0755 root root
109    mkdir /mnt/runtime/write/self 0755 root root
110
111    # Symlink to keep legacy apps working in multi-user world
112    symlink /storage/self/primary /sdcard
113    symlink /storage/self/primary /mnt/sdcard
114    symlink /mnt/user/0/primary /mnt/runtime/default/self/primary
115
116    write /proc/sys/kernel/panic_on_oops 1
117    write /proc/sys/kernel/hung_task_timeout_secs 0
118    write /proc/cpu/alignment 4
119
120    # scheduler tunables
121    # Disable auto-scaling of scheduler tunables with hotplug. The tunables
122    # will vary across devices in unpredictable ways if allowed to scale with
123    # cpu cores.
124    write /proc/sys/kernel/sched_tunable_scaling 0
125    write /proc/sys/kernel/sched_latency_ns 10000000
126    write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
127    write /proc/sys/kernel/sched_child_runs_first 0
128
129    write /proc/sys/kernel/randomize_va_space 2
130    write /proc/sys/vm/mmap_min_addr 32768
131    write /proc/sys/net/ipv4/ping_group_range "0 2147483647"
132    write /proc/sys/net/unix/max_dgram_qlen 600
133    write /proc/sys/kernel/sched_rt_runtime_us 950000
134    write /proc/sys/kernel/sched_rt_period_us 1000000
135
136    # Assign reasonable ceiling values for socket rcv/snd buffers.
137    # These should almost always be overridden by the target per the
138    # the corresponding technology maximums.
139    write /proc/sys/net/core/rmem_max  262144
140    write /proc/sys/net/core/wmem_max  262144
141
142    # reflect fwmark from incoming packets onto generated replies
143    write /proc/sys/net/ipv4/fwmark_reflect 1
144    write /proc/sys/net/ipv6/fwmark_reflect 1
145
146    # set fwmark on accepted sockets
147    write /proc/sys/net/ipv4/tcp_fwmark_accept 1
148
149    # disable icmp redirects
150    write /proc/sys/net/ipv4/conf/all/accept_redirects 0
151    write /proc/sys/net/ipv6/conf/all/accept_redirects 0
152
153    # /proc/net/fib_trie leaks interface IP addresses
154    chmod 0400 /proc/net/fib_trie
155
156    # Create cgroup mount points for process groups
157    mkdir /dev/cpuctl
158    mount cgroup none /dev/cpuctl nodev noexec nosuid cpu
159    chown system system /dev/cpuctl
160    chown system system /dev/cpuctl/tasks
161    chmod 0666 /dev/cpuctl/tasks
162    write /dev/cpuctl/cpu.rt_period_us 1000000
163    write /dev/cpuctl/cpu.rt_runtime_us 950000
164
165    # sets up initial cpusets for ActivityManager
166    mkdir /dev/cpuset
167    mount cpuset none /dev/cpuset nodev noexec nosuid
168
169    # this ensures that the cpusets are present and usable, but the device's
170    # init.rc must actually set the correct cpus
171    mkdir /dev/cpuset/foreground
172    copy /dev/cpuset/cpus /dev/cpuset/foreground/cpus
173    copy /dev/cpuset/mems /dev/cpuset/foreground/mems
174    mkdir /dev/cpuset/background
175    copy /dev/cpuset/cpus /dev/cpuset/background/cpus
176    copy /dev/cpuset/mems /dev/cpuset/background/mems
177
178    # system-background is for system tasks that should only run on
179    # little cores, not on bigs
180    # to be used only by init, so don't change system-bg permissions
181    mkdir /dev/cpuset/system-background
182    copy /dev/cpuset/cpus /dev/cpuset/system-background/cpus
183    copy /dev/cpuset/mems /dev/cpuset/system-background/mems
184
185    mkdir /dev/cpuset/top-app
186    copy /dev/cpuset/cpus /dev/cpuset/top-app/cpus
187    copy /dev/cpuset/mems /dev/cpuset/top-app/mems
188
189    # change permissions for all cpusets we'll touch at runtime
190    chown system system /dev/cpuset
191    chown system system /dev/cpuset/foreground
192    chown system system /dev/cpuset/background
193    chown system system /dev/cpuset/system-background
194    chown system system /dev/cpuset/top-app
195    chown system system /dev/cpuset/tasks
196    chown system system /dev/cpuset/foreground/tasks
197    chown system system /dev/cpuset/background/tasks
198    chown system system /dev/cpuset/system-background/tasks
199    chown system system /dev/cpuset/top-app/tasks
200
201    # set system-background to 0775 so SurfaceFlinger can touch it
202    chmod 0775 /dev/cpuset/system-background
203
204    chmod 0664 /dev/cpuset/foreground/tasks
205    chmod 0664 /dev/cpuset/background/tasks
206    chmod 0664 /dev/cpuset/system-background/tasks
207    chmod 0664 /dev/cpuset/top-app/tasks
208    chmod 0664 /dev/cpuset/tasks
209
210
211    # qtaguid will limit access to specific data based on group memberships.
212    #   net_bw_acct grants impersonation of socket owners.
213    #   net_bw_stats grants access to other apps' detailed tagged-socket stats.
214    chown root net_bw_acct /proc/net/xt_qtaguid/ctrl
215    chown root net_bw_stats /proc/net/xt_qtaguid/stats
216
217    # Allow everybody to read the xt_qtaguid resource tracking misc dev.
218    # This is needed by any process that uses socket tagging.
219    chmod 0644 /dev/xt_qtaguid
220
221    mkdir /dev/cg2_bpf
222    mount cgroup2 cg2_bpf /dev/cg2_bpf nodev noexec nosuid
223    chown root root /dev/cg2_bpf
224    chmod 0600 /dev/cg2_bpf
225    mount bpf bpf /sys/fs/bpf nodev noexec nosuid
226
227    # Create location for fs_mgr to store abbreviated output from filesystem
228    # checker programs.
229    mkdir /dev/fscklogs 0770 root system
230
231    # pstore/ramoops previous console log
232    mount pstore pstore /sys/fs/pstore nodev noexec nosuid
233    chown system log /sys/fs/pstore/console-ramoops
234    chmod 0440 /sys/fs/pstore/console-ramoops
235    chown system log /sys/fs/pstore/console-ramoops-0
236    chmod 0440 /sys/fs/pstore/console-ramoops-0
237    chown system log /sys/fs/pstore/pmsg-ramoops-0
238    chmod 0440 /sys/fs/pstore/pmsg-ramoops-0
239
240    # enable armv8_deprecated instruction hooks
241    write /proc/sys/abi/swp 1
242
243    # Linux's execveat() syscall may construct paths containing /dev/fd
244    # expecting it to point to /proc/self/fd
245    symlink /proc/self/fd /dev/fd
246
247    export DOWNLOAD_CACHE /data/cache
248
249    # set RLIMIT_NICE to allow priorities from 19 to -20
250    setrlimit nice 40 40
251
252    # Allow up to 32K FDs per process
253    setrlimit nofile 32768 32768
254
255    # This allows the ledtrig-transient properties to be created here so
256    # that they can be chown'd to system:system later on boot
257    write /sys/class/leds/vibrator/trigger "transient"
258
259# Healthd can trigger a full boot from charger mode by signaling this
260# property when the power button is held.
261on property:sys.boot_from_charger_mode=1
262    class_stop charger
263    trigger late-init
264
265on load_persist_props_action
266    load_persist_props
267    start logd
268    start logd-reinit
269
270# Indicate to fw loaders that the relevant mounts are up.
271on firmware_mounts_complete
272    rm /dev/.booting
273
274# Mount filesystems and start core system services.
275on late-init
276    trigger early-fs
277
278    # Mount fstab in init.{$device}.rc by mount_all command. Optional parameter
279    # '--early' can be specified to skip entries with 'latemount'.
280    # /system and /vendor must be mounted by the end of the fs stage,
281    # while /data is optional.
282    trigger fs
283    trigger post-fs
284
285    # Mount fstab in init.{$device}.rc by mount_all with '--late' parameter
286    # to only mount entries with 'latemount'. This is needed if '--early' is
287    # specified in the previous mount_all command on the fs stage.
288    # With /system mounted and properties form /system + /factory available,
289    # some services can be started.
290    trigger late-fs
291
292    # Now we can mount /data. File encryption requires keymaster to decrypt
293    # /data, which in turn can only be loaded when system properties are present.
294    trigger post-fs-data
295
296    # Now we can start zygote for devices with file based encryption
297    trigger zygote-start
298
299    # Load persist properties and override properties (if enabled) from /data.
300    trigger load_persist_props_action
301
302    # Remove a file to wake up anything waiting for firmware.
303    trigger firmware_mounts_complete
304
305    trigger early-boot
306    trigger boot
307
308on post-fs
309    # Load properties from
310    #     /system/build.prop,
311    #     /odm/build.prop,
312    #     /vendor/build.prop and
313    #     /factory/factory.prop
314    load_system_props
315    # start essential services
316    start logd
317    start servicemanager
318    start hwservicemanager
319    start vndservicemanager
320
321    # Once everything is setup, no need to modify /.
322    # The bind+ro combination avoids modifying any other mount flags.
323    mount rootfs rootfs / remount bind ro
324    # Mount shared so changes propagate into child namespaces
325    mount rootfs rootfs / shared rec
326    # Mount default storage into root namespace
327    mount none /mnt/runtime/default /storage bind rec
328    mount none none /storage slave rec
329
330    # Make sure /sys/kernel/debug (if present) is labeled properly
331    # Note that tracefs may be mounted under debug, so we need to cross filesystems
332    restorecon --recursive --cross-filesystems /sys/kernel/debug
333
334    # We chown/chmod /cache again so because mount is run as root + defaults
335    chown system cache /cache
336    chmod 0770 /cache
337    # We restorecon /cache in case the cache partition has been reset.
338    restorecon_recursive /cache
339
340    # Create /cache/recovery in case it's not there. It'll also fix the odd
341    # permissions if created by the recovery system.
342    mkdir /cache/recovery 0770 system cache
343
344    # Backup/restore mechanism uses the cache partition
345    mkdir /cache/backup_stage 0700 system system
346    mkdir /cache/backup 0700 system system
347
348    #change permissions on vmallocinfo so we can grab it from bugreports
349    chown root log /proc/vmallocinfo
350    chmod 0440 /proc/vmallocinfo
351
352    chown root log /proc/slabinfo
353    chmod 0440 /proc/slabinfo
354
355    #change permissions on kmsg & sysrq-trigger so bugreports can grab kthread stacks
356    chown root system /proc/kmsg
357    chmod 0440 /proc/kmsg
358    chown root system /proc/sysrq-trigger
359    chmod 0220 /proc/sysrq-trigger
360    chown system log /proc/last_kmsg
361    chmod 0440 /proc/last_kmsg
362
363    # make the selinux kernel policy world-readable
364    chmod 0444 /sys/fs/selinux/policy
365
366    # create the lost+found directories, so as to enforce our permissions
367    mkdir /cache/lost+found 0770 root root
368
369on late-fs
370    # Ensure that tracefs has the correct permissions.
371    # This does not work correctly if it is called in post-fs.
372    chmod 0755 /sys/kernel/debug/tracing
373
374    # HALs required before storage encryption can get unlocked (FBE/FDE)
375    class_start early_hal
376
377on post-fs-data
378    # We chown/chmod /data again so because mount is run as root + defaults
379    chown system system /data
380    chmod 0771 /data
381    # We restorecon /data in case the userdata partition has been reset.
382    restorecon /data
383
384    # Make sure we have the device encryption key.
385    start vold
386    installkey /data
387
388    # Start bootcharting as soon as possible after the data partition is
389    # mounted to collect more data.
390    mkdir /data/bootchart 0755 shell shell
391    bootchart start
392
393    # Avoid predictable entropy pool. Carry over entropy from previous boot.
394    copy /data/system/entropy.dat /dev/urandom
395
396    # create basic filesystem structure
397    mkdir /data/misc 01771 system misc
398    mkdir /data/misc/recovery 0770 system log
399    copy /data/misc/recovery/ro.build.fingerprint /data/misc/recovery/ro.build.fingerprint.1
400    chmod 0440 /data/misc/recovery/ro.build.fingerprint.1
401    chown system log /data/misc/recovery/ro.build.fingerprint.1
402    write /data/misc/recovery/ro.build.fingerprint ${ro.build.fingerprint}
403    chmod 0440 /data/misc/recovery/ro.build.fingerprint
404    chown system log /data/misc/recovery/ro.build.fingerprint
405    mkdir /data/misc/recovery/proc 0770 system log
406    copy /data/misc/recovery/proc/version /data/misc/recovery/proc/version.1
407    chmod 0440 /data/misc/recovery/proc/version.1
408    chown system log /data/misc/recovery/proc/version.1
409    copy /proc/version /data/misc/recovery/proc/version
410    chmod 0440 /data/misc/recovery/proc/version
411    chown system log /data/misc/recovery/proc/version
412    mkdir /data/misc/bluedroid 02770 bluetooth bluetooth
413    # Fix the access permissions and group ownership for 'bt_config.conf'
414    chmod 0660 /data/misc/bluedroid/bt_config.conf
415    chown bluetooth bluetooth /data/misc/bluedroid/bt_config.conf
416    mkdir /data/misc/bluetooth 0770 bluetooth bluetooth
417    mkdir /data/misc/bluetooth/logs 0770 bluetooth bluetooth
418    mkdir /data/misc/keystore 0700 keystore keystore
419    mkdir /data/misc/gatekeeper 0700 system system
420    mkdir /data/misc/keychain 0771 system system
421    mkdir /data/misc/net 0750 root shell
422    mkdir /data/misc/radio 0770 system radio
423    mkdir /data/misc/sms 0770 system radio
424    mkdir /data/misc/carrierid 0770 system radio
425    mkdir /data/misc/zoneinfo 0775 system system
426    mkdir /data/misc/network_watchlist 0774 system system
427    mkdir /data/misc/textclassifier 0771 system system
428    mkdir /data/misc/vpn 0770 system vpn
429    mkdir /data/misc/shared_relro 0771 shared_relro shared_relro
430    mkdir /data/misc/systemkeys 0700 system system
431    mkdir /data/misc/wifi 0770 wifi wifi
432    mkdir /data/misc/wifi/sockets 0770 wifi wifi
433    mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi
434    mkdir /data/misc/ethernet 0770 system system
435    mkdir /data/misc/dhcp 0770 dhcp dhcp
436    mkdir /data/misc/user 0771 root root
437    mkdir /data/misc/perfprofd 0775 root root
438    # give system access to wpa_supplicant.conf for backup and restore
439    chmod 0660 /data/misc/wifi/wpa_supplicant.conf
440    mkdir /data/local 0751 root root
441    mkdir /data/misc/media 0700 media media
442    mkdir /data/misc/audioserver 0700 audioserver audioserver
443    mkdir /data/misc/cameraserver 0700 cameraserver cameraserver
444    mkdir /data/misc/vold 0700 root root
445    mkdir /data/misc/boottrace 0771 system shell
446    mkdir /data/misc/update_engine 0700 root root
447    mkdir /data/misc/update_engine_log 02750 root log
448    mkdir /data/misc/trace 0700 root root
449    # create location to store surface and window trace files
450    mkdir /data/misc/wmtrace 0700 system system
451    # profile file layout
452    mkdir /data/misc/profiles 0771 system system
453    mkdir /data/misc/profiles/cur 0771 system system
454    mkdir /data/misc/profiles/ref 0771 system system
455    mkdir /data/misc/profman 0770 system shell
456    mkdir /data/misc/gcov 0770 root root
457
458    mkdir /data/vendor 0771 root root
459    mkdir /data/vendor_ce 0771 root root
460    mkdir /data/vendor_de 0771 root root
461    mkdir /data/vendor/hardware 0771 root root
462
463    # For security reasons, /data/local/tmp should always be empty.
464    # Do not place files or directories in /data/local/tmp
465    mkdir /data/local/tmp 0771 shell shell
466    mkdir /data/local/traces 0777 shell shell
467    mkdir /data/data 0771 system system
468    mkdir /data/app-private 0771 system system
469    mkdir /data/app-ephemeral 0771 system system
470    mkdir /data/app-asec 0700 root root
471    mkdir /data/app-lib 0771 system system
472    mkdir /data/app 0771 system system
473    mkdir /data/property 0700 root root
474    mkdir /data/tombstones 0771 system system
475    mkdir /data/vendor/tombstones 0771 root root
476    mkdir /data/vendor/tombstones/wifi 0771 wifi wifi
477
478    # create dalvik-cache, so as to enforce our permissions
479    mkdir /data/dalvik-cache 0771 root root
480    # create the A/B OTA directory, so as to enforce our permissions
481    mkdir /data/ota 0771 root root
482
483    # create the OTA package directory. It will be accessed by GmsCore (cache
484    # group), update_engine and update_verifier.
485    mkdir /data/ota_package 0770 system cache
486
487    # create resource-cache and double-check the perms
488    mkdir /data/resource-cache 0771 system system
489    chown system system /data/resource-cache
490    chmod 0771 /data/resource-cache
491
492    # create the lost+found directories, so as to enforce our permissions
493    mkdir /data/lost+found 0770 root root
494
495    # create directory for DRM plug-ins - give drm the read/write access to
496    # the following directory.
497    mkdir /data/drm 0770 drm drm
498
499    # create directory for MediaDrm plug-ins - give drm the read/write access to
500    # the following directory.
501    mkdir /data/mediadrm 0770 mediadrm mediadrm
502
503    mkdir /data/anr 0775 system system
504
505    # NFC: create data/nfc for nv storage
506    mkdir /data/nfc 0770 nfc nfc
507    mkdir /data/nfc/param 0770 nfc nfc
508
509    # Create all remaining /data root dirs so that they are made through init
510    # and get proper encryption policy installed
511    mkdir /data/backup 0700 system system
512    mkdir /data/ss 0700 system system
513
514    mkdir /data/system 0775 system system
515    mkdir /data/system/heapdump 0700 system system
516    mkdir /data/system/users 0775 system system
517
518    mkdir /data/system_de 0770 system system
519    mkdir /data/system_ce 0770 system system
520
521    mkdir /data/misc_de 01771 system misc
522    mkdir /data/misc_ce 01771 system misc
523
524    mkdir /data/user 0711 system system
525    mkdir /data/user_de 0711 system system
526    symlink /data/data /data/user/0
527
528    mkdir /data/media 0770 media_rw media_rw
529    mkdir /data/media/obb 0770 media_rw media_rw
530
531    mkdir /data/cache 0770 system cache
532    mkdir /data/cache/recovery 0770 system cache
533    mkdir /data/cache/backup_stage 0700 system system
534    mkdir /data/cache/backup 0700 system system
535
536    init_user0
537
538    # Set SELinux security contexts on upgrade or policy update.
539    restorecon --recursive --skip-ce /data
540
541    # Check any timezone data in /data is newer than the copy in /system, delete if not.
542    exec - system system -- /system/bin/tzdatacheck /system/usr/share/zoneinfo /data/misc/zoneinfo
543
544    # If there is no post-fs-data action in the init.<device>.rc file, you
545    # must uncomment this line, otherwise encrypted filesystems
546    # won't work.
547    # Set indication (checked by vold) that we have finished this action
548    #setprop vold.post_fs_data_done 1
549
550# It is recommended to put unnecessary data/ initialization from post-fs-data
551# to start-zygote in device's init.rc to unblock zygote start.
552on zygote-start && property:ro.crypto.state=unencrypted
553    # A/B update verifier that marks a successful boot.
554    exec_start update_verifier_nonencrypted
555    start netd
556    start zygote
557    start zygote_secondary
558
559on zygote-start && property:ro.crypto.state=unsupported
560    # A/B update verifier that marks a successful boot.
561    exec_start update_verifier_nonencrypted
562    start netd
563    start zygote
564    start zygote_secondary
565
566on zygote-start && property:ro.crypto.state=encrypted && property:ro.crypto.type=file
567    # A/B update verifier that marks a successful boot.
568    exec_start update_verifier_nonencrypted
569    start netd
570    start zygote
571    start zygote_secondary
572
573on boot
574    # basic network init
575    ifup lo
576    hostname localhost
577    domainname localdomain
578
579    # IPsec SA default expiration length
580    write /proc/sys/net/core/xfrm_acq_expires 3600
581
582    # Memory management.  Basic kernel parameters, and allow the high
583    # level system server to be able to adjust the kernel OOM driver
584    # parameters to match how it is managing things.
585    write /proc/sys/vm/overcommit_memory 1
586    write /proc/sys/vm/min_free_order_shift 4
587    chown root system /sys/module/lowmemorykiller/parameters/adj
588    chmod 0664 /sys/module/lowmemorykiller/parameters/adj
589    chown root system /sys/module/lowmemorykiller/parameters/minfree
590    chmod 0664 /sys/module/lowmemorykiller/parameters/minfree
591
592    # Tweak background writeout
593    write /proc/sys/vm/dirty_expire_centisecs 200
594    write /proc/sys/vm/dirty_background_ratio  5
595
596    # Permissions for System Server and daemons.
597    chown radio system /sys/android_power/state
598    chown radio system /sys/android_power/request_state
599    chown radio system /sys/android_power/acquire_full_wake_lock
600    chown radio system /sys/android_power/acquire_partial_wake_lock
601    chown radio system /sys/android_power/release_wake_lock
602    chown system system /sys/power/autosleep
603    chown system system /sys/power/state
604    chown system system /sys/power/wakeup_count
605    chown radio wakelock /sys/power/wake_lock
606    chown radio wakelock /sys/power/wake_unlock
607    chmod 0660 /sys/power/state
608    chmod 0660 /sys/power/wake_lock
609    chmod 0660 /sys/power/wake_unlock
610
611    chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_rate
612    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_rate
613    chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_slack
614    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_slack
615    chown system system /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
616    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
617    chown system system /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
618    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
619    chown system system /sys/devices/system/cpu/cpufreq/interactive/target_loads
620    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/target_loads
621    chown system system /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
622    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
623    chown system system /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
624    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
625    chown system system /sys/devices/system/cpu/cpufreq/interactive/boost
626    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boost
627    chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse
628    chown system system /sys/devices/system/cpu/cpufreq/interactive/input_boost
629    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/input_boost
630    chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
631    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
632    chown system system /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
633    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
634
635    # Assume SMP uses shared cpufreq policy for all CPUs
636    chown system system /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
637    chmod 0660 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
638
639    chown system system /sys/class/leds/vibrator/trigger
640    chown system system /sys/class/leds/vibrator/activate
641    chown system system /sys/class/leds/vibrator/brightness
642    chown system system /sys/class/leds/vibrator/duration
643    chown system system /sys/class/leds/vibrator/state
644    chown system system /sys/class/timed_output/vibrator/enable
645    chown system system /sys/class/leds/keyboard-backlight/brightness
646    chown system system /sys/class/leds/lcd-backlight/brightness
647    chown system system /sys/class/leds/button-backlight/brightness
648    chown system system /sys/class/leds/jogball-backlight/brightness
649    chown system system /sys/class/leds/red/brightness
650    chown system system /sys/class/leds/green/brightness
651    chown system system /sys/class/leds/blue/brightness
652    chown system system /sys/class/leds/red/device/grpfreq
653    chown system system /sys/class/leds/red/device/grppwm
654    chown system system /sys/class/leds/red/device/blink
655    chown system system /sys/module/sco/parameters/disable_esco
656    chown system system /sys/kernel/ipv4/tcp_wmem_min
657    chown system system /sys/kernel/ipv4/tcp_wmem_def
658    chown system system /sys/kernel/ipv4/tcp_wmem_max
659    chown system system /sys/kernel/ipv4/tcp_rmem_min
660    chown system system /sys/kernel/ipv4/tcp_rmem_def
661    chown system system /sys/kernel/ipv4/tcp_rmem_max
662    chown root radio /proc/cmdline
663
664    # Define default initial receive window size in segments.
665    setprop net.tcp.default_init_rwnd 60
666
667    # Start standard binderized HAL daemons
668    class_start hal
669
670    class_start core
671
672on nonencrypted
673    class_start main
674    class_start late_start
675
676on property:sys.init_log_level=*
677    loglevel ${sys.init_log_level}
678
679on charger
680    class_start charger
681
682on property:vold.decrypt=trigger_reset_main
683    class_reset main
684
685on property:vold.decrypt=trigger_load_persist_props
686    load_persist_props
687    start logd
688    start logd-reinit
689
690on property:vold.decrypt=trigger_post_fs_data
691    trigger post-fs-data
692
693on property:vold.decrypt=trigger_restart_min_framework
694    # A/B update verifier that marks a successful boot.
695    exec_start update_verifier
696    class_start main
697
698on property:vold.decrypt=trigger_restart_framework
699    # A/B update verifier that marks a successful boot.
700    exec_start update_verifier
701    class_start main
702    class_start late_start
703
704on property:vold.decrypt=trigger_shutdown_framework
705    class_reset late_start
706    class_reset main
707
708on property:sys.boot_completed=1
709    bootchart stop
710
711# system server cannot write to /proc/sys files,
712# and chown/chmod does not work for /proc/sys/ entries.
713# So proxy writes through init.
714on property:sys.sysctl.extra_free_kbytes=*
715    write /proc/sys/vm/extra_free_kbytes ${sys.sysctl.extra_free_kbytes}
716
717# "tcp_default_init_rwnd" Is too long!
718on property:sys.sysctl.tcp_def_init_rwnd=*
719    write /proc/sys/net/ipv4/tcp_default_init_rwnd ${sys.sysctl.tcp_def_init_rwnd}
720
721on property:security.perf_harden=0
722    write /proc/sys/kernel/perf_event_paranoid 1
723
724on property:security.perf_harden=1
725    write /proc/sys/kernel/perf_event_paranoid 3
726
727# on shutdown
728# In device's init.rc, this trigger can be used to do device-specific actions
729# before shutdown. e.g disable watchdog and mask error handling
730
731## Daemon processes to be run by init.
732##
733service ueventd /sbin/ueventd
734    class core
735    critical
736    seclabel u:r:ueventd:s0
737    shutdown critical
738
739service healthd /system/bin/healthd
740    class hal
741    critical
742    group root system wakelock
743
744service console /system/bin/sh
745    class core
746    console
747    disabled
748    user shell
749    group shell log readproc
750    seclabel u:r:shell:s0
751    setenv HOSTNAME console
752
753on property:ro.debuggable=1
754    # Give writes to anyone for the trace folder on debug builds.
755    # The folder is used to store method traces.
756    chmod 0773 /data/misc/trace
757    # Give reads to anyone for the window trace folder on debug builds.
758    chmod 0775 /data/misc/wmtrace
759    start console
760
761service flash_recovery /system/bin/install-recovery.sh
762    class main
763    oneshot
764