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 /system/etc/init/hw/init.usb.rc
9import /init.${ro.hardware}.rc
10import /vendor/etc/init/hw/init.${ro.hardware}.rc
11import /system/etc/init/hw/init.usb.configfs.rc
12import /system/etc/init/hw/init.${ro.zygote}.rc
13
14# Cgroups are mounted right before early-init using list from /etc/cgroups.json
15on early-init
16    # Disable sysrq from keyboard
17    write /proc/sys/kernel/sysrq 0
18
19    # Android doesn't need kernel module autoloading, and it causes SELinux
20    # denials.  So disable it by setting modprobe to the empty string.  Note: to
21    # explicitly set a sysctl to an empty string, a trailing newline is needed.
22    write /proc/sys/kernel/modprobe \n
23
24    # Set the security context of /adb_keys if present.
25    restorecon /adb_keys
26
27    # Set the security context of /postinstall if present.
28    restorecon /postinstall
29
30    mkdir /acct/uid
31
32    # memory.pressure_level used by lmkd
33    chown root system /dev/memcg/memory.pressure_level
34    chmod 0040 /dev/memcg/memory.pressure_level
35    # app mem cgroups, used by activity manager, lmkd and zygote
36    mkdir /dev/memcg/apps/ 0755 system system
37    # cgroup for system_server and surfaceflinger
38    mkdir /dev/memcg/system 0550 system system
39
40    # symlink the Android specific /dev/tun to Linux expected /dev/net/tun
41    mkdir /dev/net 0755 root root
42    symlink ../tun /dev/net/tun
43
44    # set RLIMIT_NICE to allow priorities from 19 to -20
45    setrlimit nice 40 40
46
47    # Allow up to 32K FDs per process
48    setrlimit nofile 32768 32768
49
50    # Set up linker config subdirectories based on mount namespaces
51    mkdir /linkerconfig/bootstrap 0755
52    mkdir /linkerconfig/default 0755
53
54    # Disable dm-verity hash prefetching, since it doesn't help performance
55    # Read more in b/136247322
56    write /sys/module/dm_verity/parameters/prefetch_cluster 0
57
58    # Generate ld.config.txt for early executed processes
59    exec -- /system/bin/bootstrap/linkerconfig --target /linkerconfig/bootstrap
60    chmod 644 /linkerconfig/bootstrap/ld.config.txt
61    copy /linkerconfig/bootstrap/ld.config.txt /linkerconfig/default/ld.config.txt
62    chmod 644 /linkerconfig/default/ld.config.txt
63
64    # Mount bootstrap linker configuration as current
65    mount none /linkerconfig/bootstrap /linkerconfig bind rec
66
67    start ueventd
68
69    # Run apexd-bootstrap so that APEXes that provide critical libraries
70    # become available. Note that this is executed as exec_start to ensure that
71    # the libraries are available to the processes started after this statement.
72    exec_start apexd-bootstrap
73
74    # Generate linker config based on apex mounted in bootstrap namespace
75    update_linker_config
76
77    # These must already exist by the time boringssl_self_test32 / boringssl_self_test64 run.
78    mkdir /dev/boringssl 0755 root root
79    mkdir /dev/boringssl/selftest 0755 root root
80
81    # Mount tracefs (with GID=AID_READTRACEFS)
82    mount tracefs tracefs /sys/kernel/tracing gid=3012
83
84    # create sys dirctory
85    mkdir /dev/sys 0755 system system
86    mkdir /dev/sys/fs 0755 system system
87    mkdir /dev/sys/block 0755 system system
88
89# Run boringssl self test for each ABI so that later processes can skip it. http://b/139348610
90on early-init && property:ro.product.cpu.abilist32=*
91    exec_start boringssl_self_test32
92on early-init && property:ro.product.cpu.abilist64=*
93    exec_start boringssl_self_test64
94on property:apexd.status=ready && property:ro.product.cpu.abilist32=*
95    exec_start boringssl_self_test_apex32
96on property:apexd.status=ready && property:ro.product.cpu.abilist64=*
97    exec_start boringssl_self_test_apex64
98
99service boringssl_self_test32 /system/bin/boringssl_self_test32
100    setenv BORINGSSL_SELF_TEST_CREATE_FLAG true # Any nonempty value counts as true
101    reboot_on_failure reboot,boringssl-self-check-failed
102    stdio_to_kmsg
103
104service boringssl_self_test64 /system/bin/boringssl_self_test64
105    setenv BORINGSSL_SELF_TEST_CREATE_FLAG true # Any nonempty value counts as true
106    reboot_on_failure reboot,boringssl-self-check-failed
107    stdio_to_kmsg
108
109service boringssl_self_test_apex32 /apex/com.android.conscrypt/bin/boringssl_self_test32
110    setenv BORINGSSL_SELF_TEST_CREATE_FLAG true # Any nonempty value counts as true
111    reboot_on_failure reboot,boringssl-self-check-failed
112    stdio_to_kmsg
113
114service boringssl_self_test_apex64 /apex/com.android.conscrypt/bin/boringssl_self_test64
115    setenv BORINGSSL_SELF_TEST_CREATE_FLAG true # Any nonempty value counts as true
116    reboot_on_failure reboot,boringssl-self-check-failed
117    stdio_to_kmsg
118
119on init
120    sysclktz 0
121
122    # Mix device-specific information into the entropy pool
123    copy /proc/cmdline /dev/urandom
124    copy /system/etc/prop.default /dev/urandom
125
126    symlink /proc/self/fd/0 /dev/stdin
127    symlink /proc/self/fd/1 /dev/stdout
128    symlink /proc/self/fd/2 /dev/stderr
129
130    # Create energy-aware scheduler tuning nodes
131    mkdir /dev/stune/foreground
132    mkdir /dev/stune/background
133    mkdir /dev/stune/top-app
134    mkdir /dev/stune/rt
135    chown system system /dev/stune
136    chown system system /dev/stune/foreground
137    chown system system /dev/stune/background
138    chown system system /dev/stune/top-app
139    chown system system /dev/stune/rt
140    chown system system /dev/stune/tasks
141    chown system system /dev/stune/foreground/tasks
142    chown system system /dev/stune/background/tasks
143    chown system system /dev/stune/top-app/tasks
144    chown system system /dev/stune/rt/tasks
145    chmod 0664 /dev/stune/tasks
146    chmod 0664 /dev/stune/foreground/tasks
147    chmod 0664 /dev/stune/background/tasks
148    chmod 0664 /dev/stune/top-app/tasks
149    chmod 0664 /dev/stune/rt/tasks
150
151    # cpuctl hierarchy for devices using utilclamp
152    mkdir /dev/cpuctl/foreground
153    mkdir /dev/cpuctl/background
154    mkdir /dev/cpuctl/top-app
155    mkdir /dev/cpuctl/rt
156    mkdir /dev/cpuctl/system
157    mkdir /dev/cpuctl/system-background
158    mkdir /dev/cpuctl/dex2oat
159    chown system system /dev/cpuctl
160    chown system system /dev/cpuctl/foreground
161    chown system system /dev/cpuctl/background
162    chown system system /dev/cpuctl/top-app
163    chown system system /dev/cpuctl/rt
164    chown system system /dev/cpuctl/system
165    chown system system /dev/cpuctl/system-background
166    chown system system /dev/cpuctl/dex2oat
167    chown system system /dev/cpuctl/tasks
168    chown system system /dev/cpuctl/foreground/tasks
169    chown system system /dev/cpuctl/background/tasks
170    chown system system /dev/cpuctl/top-app/tasks
171    chown system system /dev/cpuctl/rt/tasks
172    chown system system /dev/cpuctl/system/tasks
173    chown system system /dev/cpuctl/system-background/tasks
174    chown system system /dev/cpuctl/dex2oat/tasks
175    chmod 0664 /dev/cpuctl/tasks
176    chmod 0664 /dev/cpuctl/foreground/tasks
177    chmod 0664 /dev/cpuctl/background/tasks
178    chmod 0664 /dev/cpuctl/top-app/tasks
179    chmod 0664 /dev/cpuctl/rt/tasks
180    chmod 0664 /dev/cpuctl/system/tasks
181    chmod 0664 /dev/cpuctl/system-background/tasks
182    chmod 0664 /dev/cpuctl/dex2oat/tasks
183
184    # Create a cpu group for NNAPI HAL processes
185    mkdir /dev/cpuctl/nnapi-hal
186    chown system system /dev/cpuctl/nnapi-hal
187    chown system system /dev/cpuctl/nnapi-hal/tasks
188    chmod 0664 /dev/cpuctl/nnapi-hal/tasks
189    write /dev/cpuctl/nnapi-hal/cpu.uclamp.min 1
190    write /dev/cpuctl/nnapi-hal/cpu.uclamp.latency_sensitive 1
191
192    # Create a cpu group for camera daemon processes
193    mkdir /dev/cpuctl/camera-daemon
194    chown system system /dev/cpuctl/camera-daemon
195    chown system system /dev/cpuctl/camera-daemon/tasks
196    chmod 0664 /dev/cpuctl/camera-daemon/tasks
197
198    # Create an stune group for camera-specific processes
199    mkdir /dev/stune/camera-daemon
200    chown system system /dev/stune/camera-daemon
201    chown system system /dev/stune/camera-daemon/tasks
202    chmod 0664 /dev/stune/camera-daemon/tasks
203
204    # Create an stune group for NNAPI HAL processes
205    mkdir /dev/stune/nnapi-hal
206    chown system system /dev/stune/nnapi-hal
207    chown system system /dev/stune/nnapi-hal/tasks
208    chmod 0664 /dev/stune/nnapi-hal/tasks
209    write /dev/stune/nnapi-hal/schedtune.boost 1
210    write /dev/stune/nnapi-hal/schedtune.prefer_idle 1
211
212    # Create blkio group and apply initial settings.
213    # This feature needs kernel to support it, and the
214    # device's init.rc must actually set the correct values.
215    mkdir /dev/blkio/background
216    chown system system /dev/blkio
217    chown system system /dev/blkio/background
218    chown system system /dev/blkio/tasks
219    chown system system /dev/blkio/background/tasks
220    chmod 0664 /dev/blkio/tasks
221    chmod 0664 /dev/blkio/background/tasks
222    write /dev/blkio/blkio.weight 1000
223    write /dev/blkio/background/blkio.weight 200
224    write /dev/blkio/background/blkio.bfq.weight 10
225    write /dev/blkio/blkio.group_idle 0
226    write /dev/blkio/background/blkio.group_idle 0
227
228    restorecon_recursive /mnt
229
230    mount configfs none /config nodev noexec nosuid
231    chmod 0770 /config/sdcardfs
232    chown system package_info /config/sdcardfs
233
234    # Mount binderfs
235    mkdir /dev/binderfs
236    mount binder binder /dev/binderfs stats=global
237    chmod 0755 /dev/binderfs
238
239    # Mount fusectl
240    mount fusectl none /sys/fs/fuse/connections
241
242    symlink /dev/binderfs/binder /dev/binder
243    symlink /dev/binderfs/hwbinder /dev/hwbinder
244    symlink /dev/binderfs/vndbinder /dev/vndbinder
245
246    chmod 0666 /dev/binderfs/hwbinder
247    chmod 0666 /dev/binderfs/binder
248    chmod 0666 /dev/binderfs/vndbinder
249
250    mkdir /mnt/secure 0700 root root
251    mkdir /mnt/secure/asec 0700 root root
252    mkdir /mnt/asec 0755 root system
253    mkdir /mnt/obb 0755 root system
254    mkdir /mnt/media_rw 0750 root external_storage
255    mkdir /mnt/user 0755 root root
256    mkdir /mnt/user/0 0755 root root
257    mkdir /mnt/user/0/self 0755 root root
258    mkdir /mnt/user/0/emulated 0755 root root
259    mkdir /mnt/user/0/emulated/0 0755 root root
260
261    # Prepare directories for pass through processes
262    mkdir /mnt/pass_through 0700 root root
263    mkdir /mnt/pass_through/0 0710 root media_rw
264    mkdir /mnt/pass_through/0/self 0710 root media_rw
265    mkdir /mnt/pass_through/0/emulated 0710 root media_rw
266    mkdir /mnt/pass_through/0/emulated/0 0710 root media_rw
267
268    mkdir /mnt/expand 0771 system system
269    mkdir /mnt/appfuse 0711 root root
270
271    # Storage views to support runtime permissions
272    mkdir /mnt/runtime 0700 root root
273    mkdir /mnt/runtime/default 0755 root root
274    mkdir /mnt/runtime/default/self 0755 root root
275    mkdir /mnt/runtime/read 0755 root root
276    mkdir /mnt/runtime/read/self 0755 root root
277    mkdir /mnt/runtime/write 0755 root root
278    mkdir /mnt/runtime/write/self 0755 root root
279    mkdir /mnt/runtime/full 0755 root root
280    mkdir /mnt/runtime/full/self 0755 root root
281
282    # Symlink to keep legacy apps working in multi-user world
283    symlink /storage/self/primary /mnt/sdcard
284    symlink /mnt/user/0/primary /mnt/runtime/default/self/primary
285
286    write /proc/sys/kernel/panic_on_oops 1
287    write /proc/sys/kernel/hung_task_timeout_secs 0
288    write /proc/cpu/alignment 4
289
290    # scheduler tunables
291    # Disable auto-scaling of scheduler tunables with hotplug. The tunables
292    # will vary across devices in unpredictable ways if allowed to scale with
293    # cpu cores.
294    write /proc/sys/kernel/sched_tunable_scaling 0
295    write /proc/sys/kernel/sched_latency_ns 10000000
296    write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
297    write /proc/sys/kernel/sched_child_runs_first 0
298
299    write /proc/sys/kernel/randomize_va_space 2
300    write /proc/sys/vm/mmap_min_addr 32768
301    write /proc/sys/net/ipv4/ping_group_range "0 2147483647"
302    write /proc/sys/net/unix/max_dgram_qlen 600
303
304    # Assign reasonable ceiling values for socket rcv/snd buffers.
305    # These should almost always be overridden by the target per the
306    # the corresponding technology maximums.
307    write /proc/sys/net/core/rmem_max  262144
308    write /proc/sys/net/core/wmem_max  262144
309
310    # reflect fwmark from incoming packets onto generated replies
311    write /proc/sys/net/ipv4/fwmark_reflect 1
312    write /proc/sys/net/ipv6/fwmark_reflect 1
313
314    # set fwmark on accepted sockets
315    write /proc/sys/net/ipv4/tcp_fwmark_accept 1
316
317    # disable icmp redirects
318    write /proc/sys/net/ipv4/conf/all/accept_redirects 0
319    write /proc/sys/net/ipv6/conf/all/accept_redirects 0
320
321    # /proc/net/fib_trie leaks interface IP addresses
322    chmod 0400 /proc/net/fib_trie
323
324    # sets up initial cpusets for ActivityManager
325    # this ensures that the cpusets are present and usable, but the device's
326    # init.rc must actually set the correct cpus
327    mkdir /dev/cpuset/foreground
328    copy /dev/cpuset/cpus /dev/cpuset/foreground/cpus
329    copy /dev/cpuset/mems /dev/cpuset/foreground/mems
330    mkdir /dev/cpuset/background
331    copy /dev/cpuset/cpus /dev/cpuset/background/cpus
332    copy /dev/cpuset/mems /dev/cpuset/background/mems
333
334    # system-background is for system tasks that should only run on
335    # little cores, not on bigs
336    mkdir /dev/cpuset/system-background
337    copy /dev/cpuset/cpus /dev/cpuset/system-background/cpus
338    copy /dev/cpuset/mems /dev/cpuset/system-background/mems
339
340    # restricted is for system tasks that are being throttled
341    # due to screen off.
342    mkdir /dev/cpuset/restricted
343    copy /dev/cpuset/cpus /dev/cpuset/restricted/cpus
344    copy /dev/cpuset/mems /dev/cpuset/restricted/mems
345
346    mkdir /dev/cpuset/top-app
347    copy /dev/cpuset/cpus /dev/cpuset/top-app/cpus
348    copy /dev/cpuset/mems /dev/cpuset/top-app/mems
349
350    # create a cpuset for camera daemon processes
351    mkdir /dev/cpuset/camera-daemon
352    copy /dev/cpuset/cpus /dev/cpuset/camera-daemon/cpus
353    copy /dev/cpuset/mems /dev/cpuset/camera-daemon/mems
354
355    # change permissions for all cpusets we'll touch at runtime
356    chown system system /dev/cpuset
357    chown system system /dev/cpuset/foreground
358    chown system system /dev/cpuset/background
359    chown system system /dev/cpuset/system-background
360    chown system system /dev/cpuset/top-app
361    chown system system /dev/cpuset/restricted
362    chown system system /dev/cpuset/camera-daemon
363    chown system system /dev/cpuset/tasks
364    chown system system /dev/cpuset/foreground/tasks
365    chown system system /dev/cpuset/background/tasks
366    chown system system /dev/cpuset/system-background/tasks
367    chown system system /dev/cpuset/top-app/tasks
368    chown system system /dev/cpuset/restricted/tasks
369    chown system system /dev/cpuset/camera-daemon/tasks
370
371    # set system-background to 0775 so SurfaceFlinger can touch it
372    chmod 0775 /dev/cpuset/system-background
373
374    chmod 0664 /dev/cpuset/foreground/tasks
375    chmod 0664 /dev/cpuset/background/tasks
376    chmod 0664 /dev/cpuset/system-background/tasks
377    chmod 0664 /dev/cpuset/top-app/tasks
378    chmod 0664 /dev/cpuset/restricted/tasks
379    chmod 0664 /dev/cpuset/tasks
380    chmod 0664 /dev/cpuset/camera-daemon/tasks
381
382    # make the PSI monitor accessible to others
383    chown system system /proc/pressure/memory
384    chmod 0664 /proc/pressure/memory
385
386    # qtaguid will limit access to specific data based on group memberships.
387    #   net_bw_acct grants impersonation of socket owners.
388    #   net_bw_stats grants access to other apps' detailed tagged-socket stats.
389    chown root net_bw_acct /proc/net/xt_qtaguid/ctrl
390    chown root net_bw_stats /proc/net/xt_qtaguid/stats
391
392    # Allow everybody to read the xt_qtaguid resource tracking misc dev.
393    # This is needed by any process that uses socket tagging.
394    chmod 0644 /dev/xt_qtaguid
395
396    mount bpf bpf /sys/fs/bpf nodev noexec nosuid
397
398    # Create location for fs_mgr to store abbreviated output from filesystem
399    # checker programs.
400    mkdir /dev/fscklogs 0770 root system
401
402    # pstore/ramoops previous console log
403    mount pstore pstore /sys/fs/pstore nodev noexec nosuid
404    chown system log /sys/fs/pstore
405    chmod 0550 /sys/fs/pstore
406    chown system log /sys/fs/pstore/console-ramoops
407    chmod 0440 /sys/fs/pstore/console-ramoops
408    chown system log /sys/fs/pstore/console-ramoops-0
409    chmod 0440 /sys/fs/pstore/console-ramoops-0
410    chown system log /sys/fs/pstore/pmsg-ramoops-0
411    chmod 0440 /sys/fs/pstore/pmsg-ramoops-0
412
413    # enable armv8_deprecated instruction hooks
414    write /proc/sys/abi/swp 1
415
416    # Linux's execveat() syscall may construct paths containing /dev/fd
417    # expecting it to point to /proc/self/fd
418    symlink /proc/self/fd /dev/fd
419
420    export DOWNLOAD_CACHE /data/cache
421
422    # This allows the ledtrig-transient properties to be created here so
423    # that they can be chown'd to system:system later on boot
424    write /sys/class/leds/vibrator/trigger "transient"
425
426    # This is used by Bionic to select optimized routines.
427    write /dev/cpu_variant:${ro.bionic.arch} ${ro.bionic.cpu_variant}
428    chmod 0444 /dev/cpu_variant:${ro.bionic.arch}
429    write /dev/cpu_variant:${ro.bionic.2nd_arch} ${ro.bionic.2nd_cpu_variant}
430    chmod 0444 /dev/cpu_variant:${ro.bionic.2nd_arch}
431
432    # Allow system processes to read / write power state.
433    chown system system /sys/power/state
434    chown system system /sys/power/wakeup_count
435    chmod 0660 /sys/power/state
436
437    chown radio wakelock /sys/power/wake_lock
438    chown radio wakelock /sys/power/wake_unlock
439    chmod 0660 /sys/power/wake_lock
440    chmod 0660 /sys/power/wake_unlock
441
442    # Start logd before any other services run to ensure we capture all of their logs.
443    start logd
444    # Start lmkd before any other services run so that it can register them
445    chown root system /sys/module/lowmemorykiller/parameters/adj
446    chmod 0664 /sys/module/lowmemorykiller/parameters/adj
447    chown root system /sys/module/lowmemorykiller/parameters/minfree
448    chmod 0664 /sys/module/lowmemorykiller/parameters/minfree
449    start lmkd
450
451    # Start essential services.
452    start servicemanager
453    start hwservicemanager
454    start vndservicemanager
455
456# Healthd can trigger a full boot from charger mode by signaling this
457# property when the power button is held.
458on property:sys.boot_from_charger_mode=1
459    class_stop charger
460    trigger late-init
461
462on load_persist_props_action
463    load_persist_props
464    start logd
465    start logd-reinit
466
467# Indicate to fw loaders that the relevant mounts are up.
468on firmware_mounts_complete
469    rm /dev/.booting
470
471# Mount filesystems and start core system services.
472on late-init
473    trigger early-fs
474
475    # Mount fstab in init.{$device}.rc by mount_all command. Optional parameter
476    # '--early' can be specified to skip entries with 'latemount'.
477    # /system and /vendor must be mounted by the end of the fs stage,
478    # while /data is optional.
479    trigger fs
480    trigger post-fs
481
482    # Mount fstab in init.{$device}.rc by mount_all with '--late' parameter
483    # to only mount entries with 'latemount'. This is needed if '--early' is
484    # specified in the previous mount_all command on the fs stage.
485    # With /system mounted and properties form /system + /factory available,
486    # some services can be started.
487    trigger late-fs
488
489    # Now we can mount /data. File encryption requires keymaster to decrypt
490    # /data, which in turn can only be loaded when system properties are present.
491    trigger post-fs-data
492
493    # Load persist properties and override properties (if enabled) from /data.
494    trigger load_persist_props_action
495
496    # Should be before netd, but after apex, properties and logging is available.
497    trigger load_bpf_programs
498
499    # Now we can start zygote for devices with file based encryption
500    trigger zygote-start
501
502    # Remove a file to wake up anything waiting for firmware.
503    trigger firmware_mounts_complete
504
505    trigger early-boot
506    trigger boot
507
508on early-fs
509    # Once metadata has been mounted, we'll need vold to deal with userdata checkpointing
510    start vold
511
512on post-fs
513    exec - system system -- /system/bin/vdc checkpoint markBootAttempt
514
515    # Once everything is setup, no need to modify /.
516    # The bind+remount combination allows this to work in containers.
517    mount rootfs rootfs / remount bind ro nodev
518
519    # Mount default storage into root namespace
520    mount none /mnt/user/0 /storage bind rec
521    mount none none /storage slave rec
522
523    # Make sure /sys/kernel/debug (if present) is labeled properly
524    # Note that tracefs may be mounted under debug, so we need to cross filesystems
525    restorecon --recursive --cross-filesystems /sys/kernel/debug
526
527    # We chown/chmod /cache again so because mount is run as root + defaults
528    chown system cache /cache
529    chmod 0770 /cache
530    # We restorecon /cache in case the cache partition has been reset.
531    restorecon_recursive /cache
532
533    # Create /cache/recovery in case it's not there. It'll also fix the odd
534    # permissions if created by the recovery system.
535    mkdir /cache/recovery 0770 system cache
536
537    # Backup/restore mechanism uses the cache partition
538    mkdir /cache/backup_stage 0700 system system
539    mkdir /cache/backup 0700 system system
540
541    #change permissions on vmallocinfo so we can grab it from bugreports
542    chown root log /proc/vmallocinfo
543    chmod 0440 /proc/vmallocinfo
544
545    chown root log /proc/slabinfo
546    chmod 0440 /proc/slabinfo
547
548    chown root log /proc/pagetypeinfo
549    chmod 0440 /proc/pagetypeinfo
550
551    #change permissions on kmsg & sysrq-trigger so bugreports can grab kthread stacks
552    chown root system /proc/kmsg
553    chmod 0440 /proc/kmsg
554    chown root system /proc/sysrq-trigger
555    chmod 0220 /proc/sysrq-trigger
556    chown system log /proc/last_kmsg
557    chmod 0440 /proc/last_kmsg
558
559    # make the selinux kernel policy world-readable
560    chmod 0444 /sys/fs/selinux/policy
561
562    # create the lost+found directories, so as to enforce our permissions
563    mkdir /cache/lost+found 0770 root root
564
565    restorecon_recursive /metadata
566    mkdir /metadata/vold
567    chmod 0700 /metadata/vold
568    mkdir /metadata/password_slots 0771 root system
569    mkdir /metadata/bootstat 0750 system log
570    mkdir /metadata/ota 0700 root system
571    mkdir /metadata/ota/snapshots 0700 root system
572    mkdir /metadata/userspacereboot 0770 root system
573    mkdir /metadata/watchdog 0770 root system
574
575    mkdir /metadata/apex 0700 root system
576    mkdir /metadata/apex/sessions 0700 root system
577    # On some devices we see a weird behaviour in which /metadata/apex doesn't
578    # have a correct label. To workaround this bug, explicitly call restorecon
579    # on /metadata/apex. For most of the boot sequences /metadata/apex will
580    # already have a correct selinux label, meaning that this call will be a
581    # no-op.
582    restorecon_recursive /metadata/apex
583
584    mkdir /metadata/staged-install 0770 root system
585on late-fs
586    # Ensure that tracefs has the correct permissions.
587    # This does not work correctly if it is called in post-fs.
588    chmod 0755 /sys/kernel/tracing
589    chmod 0755 /sys/kernel/debug/tracing
590
591    # HALs required before storage encryption can get unlocked (FBE/FDE)
592    class_start early_hal
593
594    # Load trusted keys from dm-verity protected partitions
595    exec -- /system/bin/fsverity_init --load-verified-keys
596
597# Only enable the bootreceiver tracing instance for kernels 5.10 and above.
598on late-fs && property:ro.kernel.version=4.9
599    setprop bootreceiver.enable 0
600on late-fs && property:ro.kernel.version=4.14
601    setprop bootreceiver.enable 0
602on late-fs && property:ro.kernel.version=4.19
603    setprop bootreceiver.enable 0
604on late-fs && property:ro.kernel.version=5.4
605    setprop bootreceiver.enable 0
606on late-fs
607    # Bootreceiver tracing instance is enabled by default.
608    setprop bootreceiver.enable ${bootreceiver.enable:-1}
609
610on property:ro.product.cpu.abilist64=* && property:bootreceiver.enable=1
611    # Set up a tracing instance for system_server to monitor error_report_end events.
612    # These are sent by kernel tools like KASAN and KFENCE when a memory corruption
613    # is detected. This is only needed for 64-bit systems.
614    mkdir /sys/kernel/tracing/instances/bootreceiver 0700 system system
615    restorecon_recursive /sys/kernel/tracing/instances/bootreceiver
616    write /sys/kernel/tracing/instances/bootreceiver/buffer_size_kb 1
617    write /sys/kernel/tracing/instances/bootreceiver/trace_options disable_on_free
618    write /sys/kernel/tracing/instances/bootreceiver/events/error_report/error_report_end/enable 1
619
620on post-fs-data
621
622    mark_post_data
623
624    # Start checkpoint before we touch data
625    exec - system system -- /system/bin/vdc checkpoint prepareCheckpoint
626
627    # We chown/chmod /data again so because mount is run as root + defaults
628    chown system system /data
629    chmod 0771 /data
630    # We restorecon /data in case the userdata partition has been reset.
631    restorecon /data
632
633    # Make sure we have the device encryption key.
634    installkey /data
635
636    # Start bootcharting as soon as possible after the data partition is
637    # mounted to collect more data.
638    mkdir /data/bootchart 0755 shell shell encryption=Require
639    bootchart start
640
641    # Avoid predictable entropy pool. Carry over entropy from previous boot.
642    copy /data/system/entropy.dat /dev/urandom
643
644    mkdir /data/vendor 0771 root root encryption=Require
645    mkdir /data/vendor_ce 0771 root root encryption=None
646    mkdir /data/vendor_de 0771 root root encryption=None
647    mkdir /data/vendor/hardware 0771 root root
648
649    # Start tombstoned early to be able to store tombstones.
650    mkdir /data/anr 0775 system system encryption=Require
651    mkdir /data/tombstones 0771 system system encryption=Require
652    mkdir /data/vendor/tombstones 0771 root root
653    mkdir /data/vendor/tombstones/wifi 0771 wifi wifi
654    start tombstoned
655
656    # Make sure that apexd is started in the default namespace
657    enter_default_mount_ns
658
659    # set up keystore directory structure first so that we can end early boot
660    # and start apexd
661    mkdir /data/misc 01771 system misc encryption=Require
662    mkdir /data/misc/keystore 0700 keystore keystore
663    # work around b/183668221
664    restorecon /data/misc /data/misc/keystore
665
666    # Boot level 30
667    # odsign signing keys have MAX_BOOT_LEVEL=30
668    # This is currently the earliest boot level, but we start at 30
669    # to leave room for earlier levels.
670    setprop keystore.boot_level 30
671
672    # Now that /data is mounted and we have created /data/misc/keystore,
673    # we can tell keystore to stop allowing use of early-boot keys,
674    # and access its database for the first time to support creation and
675    # use of MAX_BOOT_LEVEL keys.
676    exec - system system -- /system/bin/vdc keymaster earlyBootEnded
677
678    # /data/apex is now available. Start apexd to scan and activate APEXes.
679    #
680    # To handle userspace reboots as well as devices that use FDE, make sure
681    # that apexd is started cleanly here (set apexd.status="") and that it is
682    # restarted if it's already running.
683    mkdir /data/apex 0755 root system encryption=None
684    mkdir /data/apex/active 0755 root system
685    mkdir /data/apex/backup 0700 root system
686    mkdir /data/apex/decompressed 0755 root system encryption=Require
687    mkdir /data/apex/hashtree 0700 root system
688    mkdir /data/apex/sessions 0700 root system
689    mkdir /data/app-staging 0751 system system encryption=DeleteIfNecessary
690    mkdir /data/apex/ota_reserved 0700 root system encryption=Require
691    setprop apexd.status ""
692    restart apexd
693
694    # create rest of basic filesystem structure
695    mkdir /data/misc/recovery 0770 system log
696    copy /data/misc/recovery/ro.build.fingerprint /data/misc/recovery/ro.build.fingerprint.1
697    chmod 0440 /data/misc/recovery/ro.build.fingerprint.1
698    chown system log /data/misc/recovery/ro.build.fingerprint.1
699    write /data/misc/recovery/ro.build.fingerprint ${ro.build.fingerprint}
700    chmod 0440 /data/misc/recovery/ro.build.fingerprint
701    chown system log /data/misc/recovery/ro.build.fingerprint
702    mkdir /data/misc/recovery/proc 0770 system log
703    copy /data/misc/recovery/proc/version /data/misc/recovery/proc/version.1
704    chmod 0440 /data/misc/recovery/proc/version.1
705    chown system log /data/misc/recovery/proc/version.1
706    copy /proc/version /data/misc/recovery/proc/version
707    chmod 0440 /data/misc/recovery/proc/version
708    chown system log /data/misc/recovery/proc/version
709    mkdir /data/misc/bluedroid 02770 bluetooth bluetooth
710    # Fix the access permissions and group ownership for 'bt_config.conf'
711    chmod 0660 /data/misc/bluedroid/bt_config.conf
712    chown bluetooth bluetooth /data/misc/bluedroid/bt_config.conf
713    mkdir /data/misc/bluetooth 0770 bluetooth bluetooth
714    mkdir /data/misc/bluetooth/logs 0770 bluetooth bluetooth
715    mkdir /data/misc/nfc 0770 nfc nfc
716    mkdir /data/misc/nfc/logs 0770 nfc nfc
717    mkdir /data/misc/credstore 0700 credstore credstore
718    mkdir /data/misc/gatekeeper 0700 system system
719    mkdir /data/misc/keychain 0771 system system
720    mkdir /data/misc/net 0750 root shell
721    mkdir /data/misc/radio 0770 system radio
722    mkdir /data/misc/sms 0770 system radio
723    mkdir /data/misc/carrierid 0770 system radio
724    mkdir /data/misc/apns 0770 system radio
725    mkdir /data/misc/emergencynumberdb 0770 system radio
726    mkdir /data/misc/zoneinfo 0775 system system
727    mkdir /data/misc/network_watchlist 0774 system system
728    mkdir /data/misc/textclassifier 0771 system system
729    mkdir /data/misc/vpn 0770 system vpn
730    mkdir /data/misc/shared_relro 0771 shared_relro shared_relro
731    mkdir /data/misc/systemkeys 0700 system system
732    mkdir /data/misc/wifi 0770 wifi wifi
733    mkdir /data/misc/wifi/sockets 0770 wifi wifi
734    mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi
735    mkdir /data/misc/ethernet 0770 system system
736    mkdir /data/misc/dhcp 0770 dhcp dhcp
737    mkdir /data/misc/user 0771 root root
738    # give system access to wpa_supplicant.conf for backup and restore
739    chmod 0660 /data/misc/wifi/wpa_supplicant.conf
740    mkdir /data/local 0751 root root encryption=Require
741    mkdir /data/misc/media 0700 media media
742    mkdir /data/misc/audioserver 0700 audioserver audioserver
743    mkdir /data/misc/cameraserver 0700 cameraserver cameraserver
744    mkdir /data/misc/vold 0700 root root
745    mkdir /data/misc/boottrace 0771 system shell
746    mkdir /data/misc/update_engine 0700 root root
747    mkdir /data/misc/update_engine_log 02750 root log
748    mkdir /data/misc/trace 0700 root root
749    # create location to store surface and window trace files
750    mkdir /data/misc/wmtrace 0700 system system
751    # create location to store accessibility trace files
752    mkdir /data/misc/a11ytrace 0700 system system
753    # profile file layout
754    mkdir /data/misc/profiles 0771 system system
755    mkdir /data/misc/profiles/cur 0771 system system
756    mkdir /data/misc/profiles/ref 0771 system system
757    mkdir /data/misc/profman 0770 system shell
758    mkdir /data/misc/gcov 0770 root root
759    mkdir /data/misc/installd 0700 root root
760    mkdir /data/misc/apexdata 0711 root root
761    mkdir /data/misc/apexrollback 0700 root root
762    mkdir /data/misc/appcompat/ 0700 system system
763    mkdir /data/misc/snapshotctl_log 0755 root root
764    # create location to store pre-reboot information
765    mkdir /data/misc/prereboot 0700 system system
766    # directory used for on-device refresh metrics file.
767    mkdir /data/misc/odrefresh 0777 system system
768    # directory used for on-device signing key blob
769    mkdir /data/misc/odsign 0700 root root
770
771    mkdir /data/preloads 0775 system system encryption=None
772
773    # For security reasons, /data/local/tmp should always be empty.
774    # Do not place files or directories in /data/local/tmp
775    mkdir /data/local/tmp 0771 shell shell
776    mkdir /data/local/traces 0777 shell shell
777    mkdir /data/data 0771 system system encryption=None
778    mkdir /data/app-private 0771 system system encryption=Require
779    mkdir /data/app-ephemeral 0771 system system encryption=Require
780    mkdir /data/app-asec 0700 root root encryption=Require
781    mkdir /data/app-lib 0771 system system encryption=Require
782    mkdir /data/app 0771 system system encryption=Require
783    mkdir /data/property 0700 root root encryption=Require
784
785    # create directory for updated font files.
786    mkdir /data/fonts/ 0771 root root encryption=Require
787    mkdir /data/fonts/files 0771 system system
788    mkdir /data/fonts/config 0770 system system
789
790    # Create directories to push tests to for each linker namespace.
791    # Create the subdirectories in case the first test is run as root
792    # so it doesn't end up owned by root.
793    mkdir /data/local/tests 0700 shell shell
794    mkdir /data/local/tests/product 0700 shell shell
795    mkdir /data/local/tests/system 0700 shell shell
796    mkdir /data/local/tests/unrestricted 0700 shell shell
797    mkdir /data/local/tests/vendor 0700 shell shell
798
799    # create dalvik-cache, so as to enforce our permissions
800    mkdir /data/dalvik-cache 0771 root root encryption=Require
801    # create the A/B OTA directory, so as to enforce our permissions
802    mkdir /data/ota 0771 root root encryption=Require
803
804    # create the OTA package directory. It will be accessed by GmsCore (cache
805    # group), update_engine and update_verifier.
806    mkdir /data/ota_package 0770 system cache encryption=Require
807
808    # create resource-cache and double-check the perms
809    mkdir /data/resource-cache 0771 system system encryption=Require
810    chown system system /data/resource-cache
811    chmod 0771 /data/resource-cache
812
813    # create the lost+found directories, so as to enforce our permissions
814    mkdir /data/lost+found 0770 root root encryption=None
815
816    # create directory for DRM plug-ins - give drm the read/write access to
817    # the following directory.
818    mkdir /data/drm 0770 drm drm encryption=Require
819
820    # create directory for MediaDrm plug-ins - give drm the read/write access to
821    # the following directory.
822    mkdir /data/mediadrm 0770 mediadrm mediadrm encryption=Require
823
824    # NFC: create data/nfc for nv storage
825    mkdir /data/nfc 0770 nfc nfc encryption=Require
826    mkdir /data/nfc/param 0770 nfc nfc
827
828    # Create all remaining /data root dirs so that they are made through init
829    # and get proper encryption policy installed
830    mkdir /data/backup 0700 system system encryption=Require
831    mkdir /data/ss 0700 system system encryption=Require
832
833    mkdir /data/system 0775 system system encryption=Require
834    mkdir /data/system/environ 0700 system system
835    # b/183861600 attempt to fix selinux label before running derive_classpath service
836    restorecon /data/system/environ
837    mkdir /data/system/dropbox 0700 system system
838    mkdir /data/system/heapdump 0700 system system
839    mkdir /data/system/users 0775 system system
840
841    mkdir /data/system_de 0770 system system encryption=None
842    mkdir /data/system_ce 0770 system system encryption=None
843
844    mkdir /data/misc_de 01771 system misc encryption=None
845    mkdir /data/misc_ce 01771 system misc encryption=None
846
847    mkdir /data/user 0711 system system encryption=None
848    mkdir /data/user_de 0711 system system encryption=None
849
850    # Unlink /data/user/0 if we previously symlink it to /data/data
851    rm /data/user/0
852
853    # Bind mount /data/user/0 to /data/data
854    mkdir /data/user/0 0700 system system encryption=None
855    mount none /data/data /data/user/0 bind rec
856
857    # A tmpfs directory, which will contain all apps CE DE data directory that
858    # bind mount from the original source.
859    mount tmpfs tmpfs /data_mirror nodev noexec nosuid mode=0700,uid=0,gid=1000
860    restorecon /data_mirror
861    mkdir /data_mirror/data_ce 0700 root root
862    mkdir /data_mirror/data_de 0700 root root
863
864    # Create CE and DE data directory for default volume
865    mkdir /data_mirror/data_ce/null 0700 root root
866    mkdir /data_mirror/data_de/null 0700 root root
867
868    # Bind mount CE and DE data directory to mirror's default volume directory
869    mount none /data/user /data_mirror/data_ce/null bind rec
870    mount none /data/user_de /data_mirror/data_de/null bind rec
871
872    # Create mirror directory for jit profiles
873    mkdir /data_mirror/cur_profiles 0700 root root
874    mount none /data/misc/profiles/cur /data_mirror/cur_profiles bind rec
875    mkdir /data_mirror/ref_profiles 0700 root root
876    mount none /data/misc/profiles/ref /data_mirror/ref_profiles bind rec
877
878    mkdir /data/cache 0770 system cache encryption=Require
879    mkdir /data/cache/recovery 0770 system cache
880    mkdir /data/cache/backup_stage 0700 system system
881    mkdir /data/cache/backup 0700 system system
882
883    # Delete these if need be, per b/139193659
884    mkdir /data/rollback 0700 system system encryption=DeleteIfNecessary
885    mkdir /data/rollback-observer 0700 system system encryption=DeleteIfNecessary
886    mkdir /data/rollback-history 0700 system system encryption=DeleteIfNecessary
887
888    # Create root dir for Incremental Service
889    mkdir /data/incremental 0771 system system encryption=Require
890
891    # Create directories for statsd
892    mkdir /data/misc/stats-active-metric/ 0770 statsd system
893    mkdir /data/misc/stats-data/ 0770 statsd system
894    mkdir /data/misc/stats-metadata/ 0770 statsd system
895    mkdir /data/misc/stats-service/ 0770 statsd system
896    mkdir /data/misc/train-info/ 0770 statsd system
897
898    # Wait for apexd to finish activating APEXes before starting more processes.
899    wait_for_prop apexd.status activated
900    perform_apex_config
901
902    # Special-case /data/media/obb per b/64566063
903    mkdir /data/media 0770 media_rw media_rw encryption=None
904    exec - media_rw media_rw -- /system/bin/chattr +F /data/media
905    mkdir /data/media/obb 0770 media_rw media_rw encryption=Attempt
906
907    exec_start derive_sdk
908
909    init_user0
910
911    # Set SELinux security contexts on upgrade or policy update.
912    restorecon --recursive --skip-ce /data
913
914    # Define and export *CLASSPATH variables
915    # Must start before 'odsign', as odsign depends on *CLASSPATH variables
916    exec_start derive_classpath
917    load_exports /data/system/environ/classpath
918
919    # Start the on-device signing daemon, and wait for it to finish, to ensure
920    # ART artifacts are generated if needed.
921    # Must start after 'derive_classpath' to have *CLASSPATH variables set.
922    start odsign
923
924    # Before we can lock keys and proceed to the next boot stage, wait for
925    # odsign to be done with the key
926    wait_for_prop odsign.key.done 1
927
928    # Lock the fs-verity keyring, so no more keys can be added
929    exec -- /system/bin/fsverity_init --lock
930
931    # Bump the boot level to 1000000000; this prevents further on-device signing.
932    # This is a special value that shuts down the thread which listens for
933    # further updates.
934    setprop keystore.boot_level 1000000000
935
936    # Allow apexd to snapshot and restore device encrypted apex data in the case
937    # of a rollback. This should be done immediately after DE_user data keys
938    # are loaded. APEXes should not access this data until this has been
939    # completed and apexd.status becomes "ready".
940    exec_start apexd-snapshotde
941
942    # Check any timezone data in /data is newer than the copy in the time zone data
943    # module, delete if not.
944    exec - system system -- /system/bin/tzdatacheck /apex/com.android.tzdata/etc/tz /data/misc/zoneinfo
945
946    # If there is no post-fs-data action in the init.<device>.rc file, you
947    # must uncomment this line, otherwise encrypted filesystems
948    # won't work.
949    # Set indication (checked by vold) that we have finished this action
950    #setprop vold.post_fs_data_done 1
951
952    # sys.memfd_use set to false by default, which keeps it disabled
953    # until it is confirmed that apps and vendor processes don't make
954    # IOCTLs on ashmem fds any more.
955    setprop sys.use_memfd false
956
957    # Set fscklog permission
958    chown root system /dev/fscklogs/log
959    chmod 0770 /dev/fscklogs/log
960
961    # Enable FUSE by default
962    setprop persist.sys.fuse true
963
964# It is recommended to put unnecessary data/ initialization from post-fs-data
965# to start-zygote in device's init.rc to unblock zygote start.
966on zygote-start && property:ro.crypto.state=unencrypted
967    wait_for_prop odsign.verification.done 1
968    # A/B update verifier that marks a successful boot.
969    exec_start update_verifier_nonencrypted
970    start statsd
971    start netd
972    start zygote
973    start zygote_secondary
974
975on zygote-start && property:ro.crypto.state=unsupported
976    wait_for_prop odsign.verification.done 1
977    # A/B update verifier that marks a successful boot.
978    exec_start update_verifier_nonencrypted
979    start statsd
980    start netd
981    start zygote
982    start zygote_secondary
983
984on zygote-start && property:ro.crypto.state=encrypted && property:ro.crypto.type=file
985    wait_for_prop odsign.verification.done 1
986    # A/B update verifier that marks a successful boot.
987    exec_start update_verifier_nonencrypted
988    start statsd
989    start netd
990    start zygote
991    start zygote_secondary
992
993on boot && property:ro.config.low_ram=true
994    # Tweak background writeout
995    write /proc/sys/vm/dirty_expire_centisecs 200
996    write /proc/sys/vm/dirty_background_ratio  5
997
998on boot
999    # basic network init
1000    ifup lo
1001    hostname localhost
1002    domainname localdomain
1003
1004    # IPsec SA default expiration length
1005    write /proc/sys/net/core/xfrm_acq_expires 3600
1006
1007    # Memory management.  Basic kernel parameters, and allow the high
1008    # level system server to be able to adjust the kernel OOM driver
1009    # parameters to match how it is managing things.
1010    write /proc/sys/vm/overcommit_memory 1
1011    write /proc/sys/vm/min_free_order_shift 4
1012
1013    # System server manages zram writeback
1014    chown root system /sys/block/zram0/idle
1015    chmod 0664 /sys/block/zram0/idle
1016    chown root system /sys/block/zram0/writeback
1017    chmod 0664 /sys/block/zram0/writeback
1018
1019    # to access F2FS sysfs on dm-<num> directly
1020    mkdir /dev/sys/fs/by-name 0755 system system
1021    symlink /sys/fs/f2fs/${dev.mnt.blk.data} /dev/sys/fs/by-name/userdata
1022
1023    # to access dm-<num> sysfs
1024    mkdir /dev/sys/block/by-name 0755 system system
1025    symlink /sys/devices/virtual/block/${dev.mnt.blk.data} /dev/sys/block/by-name/userdata
1026
1027    # F2FS tuning. Set cp_interval larger than dirty_expire_centisecs, 30 secs,
1028    # to avoid power consumption when system becomes mostly idle. Be careful
1029    # to make it too large, since it may bring userdata loss, if they
1030    # are not aware of using fsync()/sync() to prepare sudden power-cut.
1031    write /dev/sys/fs/by-name/userdata/cp_interval 200
1032    write /dev/sys/fs/by-name/userdata/gc_urgent_sleep_time 50
1033    write /dev/sys/fs/by-name/userdata/iostat_enable 1
1034
1035    # limit discard size to 128MB in order to avoid long IO latency
1036    # for filesystem tuning first (dm or sda)
1037    # Note that, if dm-<num> is used, sda/mmcblk0 should be tuned in vendor/init.rc
1038    write /dev/sys/block/by-name/userdata/queue/discard_max_bytes 134217728
1039
1040    # Permissions for System Server and daemons.
1041    chown system system /sys/power/autosleep
1042
1043    chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_rate
1044    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_rate
1045    chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_slack
1046    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_slack
1047    chown system system /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
1048    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
1049    chown system system /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
1050    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
1051    chown system system /sys/devices/system/cpu/cpufreq/interactive/target_loads
1052    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/target_loads
1053    chown system system /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
1054    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
1055    chown system system /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
1056    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay
1057    chown system system /sys/devices/system/cpu/cpufreq/interactive/boost
1058    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boost
1059    chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse
1060    chown system system /sys/devices/system/cpu/cpufreq/interactive/input_boost
1061    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/input_boost
1062    chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
1063    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration
1064    chown system system /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
1065    chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/io_is_busy
1066
1067    # Assume SMP uses shared cpufreq policy for all CPUs
1068    chown system system /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
1069    chmod 0660 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
1070
1071    chown system system /sys/class/leds/vibrator/trigger
1072    chown system system /sys/class/leds/vibrator/activate
1073    chown system system /sys/class/leds/vibrator/brightness
1074    chown system system /sys/class/leds/vibrator/duration
1075    chown system system /sys/class/leds/vibrator/state
1076    chown system system /sys/class/timed_output/vibrator/enable
1077    chown system system /sys/class/leds/keyboard-backlight/brightness
1078    chown system system /sys/class/leds/lcd-backlight/brightness
1079    chown system system /sys/class/leds/button-backlight/brightness
1080    chown system system /sys/class/leds/jogball-backlight/brightness
1081    chown system system /sys/class/leds/red/brightness
1082    chown system system /sys/class/leds/green/brightness
1083    chown system system /sys/class/leds/blue/brightness
1084    chown system system /sys/class/leds/red/device/grpfreq
1085    chown system system /sys/class/leds/red/device/grppwm
1086    chown system system /sys/class/leds/red/device/blink
1087    chown system system /sys/module/sco/parameters/disable_esco
1088    chown system system /sys/kernel/ipv4/tcp_wmem_min
1089    chown system system /sys/kernel/ipv4/tcp_wmem_def
1090    chown system system /sys/kernel/ipv4/tcp_wmem_max
1091    chown system system /sys/kernel/ipv4/tcp_rmem_min
1092    chown system system /sys/kernel/ipv4/tcp_rmem_def
1093    chown system system /sys/kernel/ipv4/tcp_rmem_max
1094    chown root radio /proc/cmdline
1095
1096    # Define default initial receive window size in segments.
1097    setprop net.tcp_def_init_rwnd 60
1098
1099    # Start standard binderized HAL daemons
1100    class_start hal
1101
1102    class_start core
1103
1104on nonencrypted
1105    class_start main
1106    class_start late_start
1107
1108on property:sys.init_log_level=*
1109    loglevel ${sys.init_log_level}
1110
1111on charger
1112    class_start charger
1113
1114on property:vold.decrypt=trigger_load_persist_props
1115    load_persist_props
1116    start logd
1117    start logd-reinit
1118
1119on property:vold.decrypt=trigger_post_fs_data
1120    trigger post-fs-data
1121    trigger zygote-start
1122
1123on property:vold.decrypt=trigger_restart_min_framework
1124    # A/B update verifier that marks a successful boot.
1125    exec_start update_verifier
1126    class_start main
1127
1128on property:vold.decrypt=trigger_restart_framework
1129    # A/B update verifier that marks a successful boot.
1130    exec_start update_verifier
1131    class_start_post_data hal
1132    class_start_post_data core
1133    class_start main
1134    class_start late_start
1135    setprop service.bootanim.exit 0
1136    setprop service.bootanim.progress 0
1137    start bootanim
1138
1139on property:vold.decrypt=trigger_shutdown_framework
1140    class_reset late_start
1141    class_reset main
1142    class_reset_post_data core
1143    class_reset_post_data hal
1144
1145on property:sys.boot_completed=1
1146    bootchart stop
1147    # Setup per_boot directory so other .rc could start to use it on boot_completed
1148    exec - system system -- /bin/rm -rf /data/per_boot
1149    mkdir /data/per_boot 0700 system system encryption=Require key=per_boot_ref
1150
1151# system server cannot write to /proc/sys files,
1152# and chown/chmod does not work for /proc/sys/ entries.
1153# So proxy writes through init.
1154on property:sys.sysctl.extra_free_kbytes=*
1155    write /proc/sys/vm/extra_free_kbytes ${sys.sysctl.extra_free_kbytes}
1156
1157# Allow users to drop caches
1158on property:perf.drop_caches=3
1159    write /proc/sys/vm/drop_caches 3
1160    setprop perf.drop_caches 0
1161
1162# "tcp_default_init_rwnd" Is too long!
1163on property:net.tcp_def_init_rwnd=*
1164    write /proc/sys/net/ipv4/tcp_default_init_rwnd ${net.tcp_def_init_rwnd}
1165
1166# perf_event_open syscall security:
1167# Newer kernels have the ability to control the use of the syscall via SELinux
1168# hooks. init tests for this, and sets sys_init.perf_lsm_hooks to 1 if the
1169# kernel has the hooks. In this case, the system-wide perf_event_paranoid
1170# sysctl is set to -1 (unrestricted use), and the SELinux policy is used for
1171# controlling access. On older kernels, the paranoid value is the only means of
1172# controlling access. It is normally 3 (allow only root), but the shell user
1173# can lower it to 1 (allowing thread-scoped pofiling) via security.perf_harden.
1174on property:sys.init.perf_lsm_hooks=1
1175    write /proc/sys/kernel/perf_event_paranoid -1
1176on property:security.perf_harden=0 && property:sys.init.perf_lsm_hooks=""
1177    write /proc/sys/kernel/perf_event_paranoid 1
1178on property:security.perf_harden=1 && property:sys.init.perf_lsm_hooks=""
1179    write /proc/sys/kernel/perf_event_paranoid 3
1180
1181# Additionally, simpleperf profiler uses debug.* and security.perf_harden
1182# sysprops to be able to indirectly set these sysctls.
1183on property:security.perf_harden=0
1184    write /proc/sys/kernel/perf_event_max_sample_rate ${debug.perf_event_max_sample_rate:-100000}
1185    write /proc/sys/kernel/perf_cpu_time_max_percent ${debug.perf_cpu_time_max_percent:-25}
1186    write /proc/sys/kernel/perf_event_mlock_kb ${debug.perf_event_mlock_kb:-516}
1187# Default values.
1188on property:security.perf_harden=1
1189    write /proc/sys/kernel/perf_event_max_sample_rate 100000
1190    write /proc/sys/kernel/perf_cpu_time_max_percent 25
1191    write /proc/sys/kernel/perf_event_mlock_kb 516
1192
1193# This property can be set only on userdebug/eng. See neverallow rule in
1194# /system/sepolicy/private/property.te .
1195on property:security.lower_kptr_restrict=1
1196    write /proc/sys/kernel/kptr_restrict 0
1197
1198on property:security.lower_kptr_restrict=0
1199    write /proc/sys/kernel/kptr_restrict 2
1200
1201
1202# on shutdown
1203# In device's init.rc, this trigger can be used to do device-specific actions
1204# before shutdown. e.g disable watchdog and mask error handling
1205
1206## Daemon processes to be run by init.
1207##
1208service ueventd /system/bin/ueventd
1209    class core
1210    critical
1211    seclabel u:r:ueventd:s0
1212    shutdown critical
1213
1214service console /system/bin/sh
1215    class core
1216    console
1217    disabled
1218    user shell
1219    group shell log readproc
1220    seclabel u:r:shell:s0
1221    setenv HOSTNAME console
1222
1223on property:ro.debuggable=1
1224    # Give writes to anyone for the trace folder on debug builds.
1225    # The folder is used to store method traces.
1226    chmod 0773 /data/misc/trace
1227    # Give reads to anyone for the window trace folder on debug builds.
1228    chmod 0775 /data/misc/wmtrace
1229    # Give reads to anyone for the accessibility trace folder on debug builds.
1230    chmod 0775 /data/misc/a11ytrace
1231
1232on init && property:ro.debuggable=1
1233    start console
1234
1235on userspace-reboot-requested
1236  # TODO(b/135984674): reset all necessary properties here.
1237  setprop sys.boot_completed ""
1238  setprop dev.bootcomplete ""
1239  setprop sys.init.updatable_crashing ""
1240  setprop sys.init.updatable_crashing_process_name ""
1241  setprop sys.user.0.ce_available ""
1242  setprop sys.shutdown.requested ""
1243  setprop service.bootanim.exit ""
1244  setprop service.bootanim.progress ""
1245
1246on userspace-reboot-fs-remount
1247  # Make sure that vold is running.
1248  # This is mostly a precaution measure in case vold for some reason wasn't running when
1249  # userspace reboot was initiated.
1250  start vold
1251  exec - system system -- /system/bin/vdc checkpoint resetCheckpoint
1252  exec - system system -- /system/bin/vdc checkpoint markBootAttempt
1253  # Unmount /data_mirror mounts in the reverse order of corresponding mounts.
1254  umount /data_mirror/data_ce/null/0
1255  umount /data_mirror/data_ce/null
1256  umount /data_mirror/data_de/null
1257  umount /data_mirror/cur_profiles
1258  umount /data_mirror/ref_profiles
1259  umount /data_mirror
1260  remount_userdata
1261  start bootanim
1262
1263on userspace-reboot-resume
1264  trigger userspace-reboot-fs-remount
1265  trigger post-fs-data
1266  trigger zygote-start
1267  trigger early-boot
1268  trigger boot
1269
1270on property:sys.boot_completed=1 && property:sys.init.userspace_reboot.in_progress=1
1271  setprop sys.init.userspace_reboot.in_progress ""
1272