Recall that kernel events were not the thing we were actually interested in. We wanted udev's version of the events. Browsing through libudev's source code, we can see that udev events are also broadcast using netlink. Even though netlink is often used to communicate with the kernel, NETLINK_KOBJECT_UEVENT allows for userspace-to-userspace communication. We just have to change the multicast group in our sample program to MONITOR_GROUP_UDEV which is 2.
When debugging: "What would the agent need to see?"
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Opens in a new window。下载安装 谷歌浏览器 开启极速安全的 上网之旅。是该领域的重要参考