We previously introduced how to configure OpenWrt to operate in a one-armed routing mode (OpenWrt Configuration One-Armed Routing Mode), and later discussed iStoreOS based on OpenWrt (Deploying iStoreOS on VMware ESXi to Turn It into a Router), which we flashed onto the VMware Edge 620 (VMware Edge 620 Magic Operation: Flashing iStoreOS to Become a … Read more
The OpenWRT system achieves data transmission between Ethernet (wired) and WiFi (wireless) through a multi-layer network architecture design and inter-process communication (IPC) mechanisms. Its core design includes network interface bridging, inter-process communication framework (ubus), firewall and routing rules, and unified configuration management system. The following are the specific implementation principles and key components: 1. Network … Read more
Recently, while debugging a user-space program, I suddenly wanted to understand the relationship between a certain process and several child processes, similar to the output below: ruok@ruok-vm:~$ ps aux | grep smbdroot 1359 0.0 0.2 356712 20596 ? Ss 16:48 0:00 /usr/sbin/smbd –foreground –no-process-grouproot 1361 0.0 0.0 344968 6036 ? S 16:48 0:00 /usr/sbin/smbd –foreground … Read more
The Allwinner MR536 Tina 5.0 OpenWRT OTA upgrade can be achieved through two methods: AB backup and Recovery system. The AB backup method involves burning two copies of uboot, kernel, and rootfs into Flash, and then using uboot environment variables to decide which set to switch between. This method consumes too much Flash space and … Read more
This is the fourth article introducing the core component of OpenWrt, libubox. Here, we will discuss the ulog module, which is widely used in the OpenWrt software ecosystem. Almost all core modules in the system utilize it to save logs, so let’s get started.The ulog module is a wrapper for the syslog programming interface. If … Read more
The full name of DNS is “Domain Name System,” which is a fundamental service of the Internet that maps domain names to IP addresses, making it easier for people to access the Internet. However, sometimes custom DNS operations are needed to resolve certain network issues. This article demonstrates how to set up DNS optimization and … Read more
“Why can other people’s networks access the internet scientifically, filter ads, and control devices globally?” The answer may not lie in the speed of the internet itself, but in whether your router is smart enough. This article will guide you step by step on how to upgrade an ordinary home router into a smart soft … Read more
Follow our official account for discussions on Buildroot-related technical issues on the RK3568 platform.。 Porting OpenWRT RootFS on RK3568 Buildroot: Basic Network Function Verification Case This article mainly discusses compatibility issues encountered when using Buildroot kernel + OpenWRT rootfs, focusing on network functionalities such as VLAN, bridging, NAT, etc., and introduces how to perform basic … Read more
Hello everyone! Today, we won’t talk about anything else but a magical tool that can completely transform your router – OpenWrt! Some of you might find the name daunting, thinking it sounds like some high-tech jargon, but simply put, it is an operating system that makes your router incredibly powerful! 1. What is OpenWrt? What … Read more
1. Modify the kernel. In the directory openwrt/imx_openwrt/target/linux/imx/patches-5.15/, there are numerous patch files used to apply patches to the target image. Here, modify the kernel patch. Modify the device tree patch file 0002-add-dts-files.patch +&pcie0{+ pinctrl-names = "default";+ pinctrl-0 = <&pcie0_pinctrl>;+ disable-gpio = <&gpio1 5 GPIO_ACTIVE_LOW>;+ reset-gpio = <&gpio4 21 GPIO_ACTIVE_LOW>;+ clocks = <&clk IMX8MM_CLK_PCIE1_ROOT>,+ <&clk … Read more