init.rc文件中执行shell命令

阳光穿透心脏的1/2处 2023-05-29 15:23 8阅读 0赞

device/fsl/imx8q/etc/reboot\_adb  
device/fsl/imx8q/mek\_8q/BoardConfig.mk  
device/fsl/imx8q/mek\_8q/init\_car.rc  
device/fsl/imx8q/sepolicy\_car/file\_contexts  
device/fsl/imx8q/sepolicy\_car/reboot\_adb.te  
system/core/init/init.cpp

shell文件中，执行的shell命令：  
device/fsl/imx8q/etc/reboot\_adb

#!/bin/sh
    #show log
    echo "init.rc adb reboot"
    am broadcast -a android.intent.action.REBOOT -n com.ad.carcontrol/com.ad.carcontrol.StaticBroadcastReceiver
    #chown system:system /sys/devices/platform/5b0d0000.usb/ci_hdrc.0/driver/ci_hdrc.0/role
    #setenforce 0
    #ip addr add 10.10.10.10/24 dev eth0
    #ip rule add from all lookup main pref 9999
    #chmod 0777 /vendor/etc/wifi/* -R #chmod 0777 /data/misc/wifi/* -R #chown wifi:wifi /vendor/etc/wifi/* #chown wifi:wifi /sys/module/bcmdhd/parameters #chown wifi:wifi /sys/module/bcmdhd/parameters/firmware_path #chown wifi:wifi /sys/module/bcmdhd/parameters/nvram_path #chown system:system /sys/class/backlight/lvds_backlight@1/brightness #chmod 777 /sys/class/backlight/lvds_backlight@1 #chown wifi:wifi /data/misc/wifi/* -R #sleep 1 #setenforce 1

将reboot\_adb的shell脚本拷贝到vendor/bin/目录下  
device/fsl/imx8q/mek\_8q/BoardConfig.mk

PRODUCT_COPY_FILES += \
    		hardware/gps/u-blox/gps.conf:system/etc/gps.conf        \
    		hardware/gps/u-blox/u-blox.conf:vendor/etc/u-blox.conf  \
    		device/fsl/imx8q/etc/busybox:system/bin/busybox         \
    		device/fsl/imx8q/etc/selinuxswitch:vendor/bin/selinuxswitch         \
    		device/fsl/imx8q/etc/reboot_adb:vendor/bin/reboot_adb

init.rc文件中添加一个service，用于执行/vendor/bin/reboot\_adb的shell脚本  
并且，添加vendor.reboot和vendor.reboot.adb.event属性值变化的监听  
device/fsl/imx8q/mek\_8q/init\_car.rc

#add by sunxiaolin start 20191031
    service reboot_adb /vendor/bin/reboot_adb
       class main
       user root
       group root shell
       disabled
       oneshot
    
    #add by sunxiaolin start 20191031
    on property:sys.powerctl=*
        start reboot_adb
    
    on property:vendor.reboot=*
        start reboot_adb
    
    on property:vendor.reboot.adb.event=1
        start reboot_adb
    #add by sunxiaolin start 20191031

添加脚本reboot\_adb的执行权限  
device/fsl/imx8q/sepolicy\_car/file\_contexts

# Persist STSensors calibration filesystem
    /persist/STCalibration(/.*)?            u:object_r:persist_STSensors_file:s0
    # STSensors_deamon
    /vendor/bin/evs_service                 u:object_r:evs_service_exec:s0
    /vendor/bin/selinuxswitch               u:object_r:selinuxswitch_exec:s0
    /system/bin/STSensors_daemon            u:object_r:STSensors_exec:s0
    /vendor/bin/reboot_adb               	u:object_r:reboot_adb_exec:s0

添加reboot\_adb脚本的SELinux权限  
device/fsl/imx8q/sepolicy\_car/reboot\_adb.te

type reboot_adb, domain;
    type reboot_adb_exec, exec_type, vendor_file_type, file_type;
    init_daemon_domain(reboot_adb)
    set_prop(reboot_adb, public_vendor_default_prop)
    allow reboot_adb vendor_shell_exec:file rx_file_perms;
    allow reboot_adb vendor_toolbox_exec:file rx_file_perms;
    # Allow insmod
    allow reboot_adb self:capability sys_module;
    allow reboot_adb system_file:file {  getattr setattr open read write create };
    allow reboot_adb vendor_file:file {  getattr setattr open read write create };
    allow reboot_adb wc_prop:property_service {  set };
    allow reboot_adb shell_exec:file {  map read execute getattr setattr create append };
    allow reboot_adb sysfs:file {  getattr setattr };
    allow reboot_adb sysfs:dir {  getattr setattr };
    allow reboot_adb reboot_adb:capability  {  dac_read_search chown fowner fsetid };
    allow reboot_adb toolbox_exec:file {  getattr setattr execute read open write execute_no_trans map };
    allow reboot_adb wifi_data_file:dir {  read getattr setattr open search };
    allow reboot_adb wifi_data_file:file {  read getattr setattr };
    allow reboot_adb wpa_socket:dir {  read getattr setattr open search };
    allow reboot_adb wpa_socket:file {  read getattr setattr };
    allow reboot_adb wpa_socket:sock_file {  read getattr setattr };
    allow reboot_adb selinuxfs:file {  read write open };
    allow reboot_adb system_wpa_socket:sock_file {  read getattr setattr  };
    allow reboot_adb kernel:security {  setenforce };

这样当属性vendor.reboot变化的时候或者vendor.reboot.adb.event=1的时候，就会执行reboot\_adb脚本中的shell命令。

adb shell setprop vendor.reboot reboot
    adb shell setprop vendor.reboot.adb.event 1