啟動和停止init.rc中的服務

實例演示

關閉和啟動init.rc中的console 服務

service console /system/bin/sh
    class core
    console
    disabled
    user shell
    group log

 

 

 

代碼實現

shell ：

setprop ctl.start service_name

setprop ctl.stop service_name

JNI:

property_set("ctl.start", service_name);

property_set("ctl.stop", service_name);

 code位置：

system\core\init\Property_service.cpp

uint32_t HandlePropertySet(const std::string& name, const std::string& value,
                           const std::string& source_context, const ucred& cr, std::string* error) {
    if (auto ret = CheckPermissions(name, value, source_context, cr, error); ret != PROP_SUCCESS) {
        return ret;
    }
    if (StartsWith(name, "ctl.")) {
        HandleControlMessage(name.c_str() + 4, value, cr.pid);
        return PROP_SUCCESS;
    }

 

權限

uid == AID_SYSTEM || uid == AID_ROOT

參見 system/core/init/property_service.c中check_control_perms函數

 

原文鏈接：https://blog.csdn.net/aeolia_zhang/article/details/20126031