平台:
RK3288 + Android7.12
问题:
无法启动init.rc中新增的服务.
步骤:
新增服务
|–system/extras/info-service/Android.mk
LOCAL_PATH:= $(call my-dir) include $(CLEAR_VARS) LOCAL_CFLAGS := -std=c11 -Wall #-Wmacro-redefined -Wunused-parameter -Wunused-variable LOCAL_SRC_FILES:= infoservice.cpp LOCAL_MODULE:= infoservice LOCAL_SHARED_LIBRARIES := \ libcutils \ liblog \ libc \ libm LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) LOCAL_MODULE_TAGS := debug include $(BUILD_EXECUTABLE)
|–system/extras/info-service/infoservice.cpp
#define LOG_TAG "InfoService" #include <errno.h> #include <error.h> #include <getopt.h> #include <paths.h> #include <pwd.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <utils/Log.h> char configFile[] = "/data/system/device.cfg"; char profile[] = "/data/profile"; int main(int argc, char** argv) { ALOGI("start Info Service"); }
在init.rc中添服务
|–device/rockchip/rk3288/init.rk3288.rc
on verity-logging exec u:r:slideshow:s0 -- /sbin/slideshow warning/verity_red_1 warning/verity_red_2 + +service infoservice /system/xbin/infoservice + class core + user root + group root system + disabled + oneshot
尝试启动服务:
setprop ctl.start infoservice
服务无法启动!
查看LOG:
[ 58.364922] init: ALog Starting 'infoservice'... [ 58.365266] init: Service infoservice does not have a SELinux domain defined.
SELinux无法找到自定义服务的域定义.
解决:
参考bootanimation的源码:
新增文件:
|–system/sepolicy/infoservice.te
type infoservice, domain; type infoservice_exec, exec_type, file_type; init_daemon_domain(infoservice)
修改文件如下:
|–system/sepolicy/file_contexts
/system/bin/sh -- u:object_r:shell_exec:s0 /system/bin/run-as -- u:object_r:runas_exec:s0 /system/bin/bootanimation u:object_r:bootanim_exec:s0 +/system/xbin/infoservice u:object_r:infoservice_exec:s0 /system/bin/bootstat u:object_r:bootstat_exec:s0 /system/bin/app_process32 u:object_r:zygote_exec:s0 /system/bin/app_process64 u:object_r:zygote_exec:s0
|–system/sepolicy/property.te
type vold_prop, property_type, core_property_type; type wifi_log_prop, property_type, log_property_type; type ctl_bootanim_prop, property_type; +type ctl_infoservice_prop, property_type; type ctl_default_prop, property_type; type ctl_dumpstate_prop, property_type; type ctl_fuse_prop, property_type;
|–system/sepolicy/property_contexts
# ctl properties ctl.bootanim u:object_r:ctl_bootanim_prop:s0 +ctl.infoservice u:object_r:ctl_infoservice_prop:s0 ctl.dumpstate u:object_r:ctl_dumpstate_prop:s0 ctl.fuse_ u:object_r:ctl_fuse_prop:s0 ctl.mdnsd u:object_r:ctl_mdnsd_prop:s0
编译system/sepolicy, 打包烧录, 问题解决!
