This page has links to all the pages of OpenWrt development documentation. Use the Search facility to find more information.

• Overview
• The OpenWrt source code
  • The OpenWrt source code
  • Fetching from GitHub
  • Revision number calculation
• Build system
  • Build System essentials
  • System setup
    • Linux
    • MacOS
    • Windows (WSL)
  • Setting up a build server in VirtualBox
  • Testing OpenWrt in a virtual machine
    • Docker OpenWrt Image Generation
    • Metarouter Virtualization on Mikrotik RouterBoard
    • OpenWrt as a Docker Image
    • OpenWrt as a Xen DomU guest
    • OpenWrt as Docker container host
    • OpenWrt as DomU in Debian Xen4 in a private network
    • OpenWrt as QEMU/KVM host server
    • OpenWrt in LXC containers
    • OpenWrt in QEMU
    • OpenWrt on UTM on Apple Silicon HowTo
    • OpenWrt on VirtualBox HowTo
    • OpenWrt on VMware Fusion on Apple Silicon HowTo
    • OpenWrt on VMware HowTo
    • OpenWrt running as metarouter on mikrotik routerOS
    • VirtualBox Advanced
• Build system usage
  • Quick image building guide
  • Using build environments
  • Overriding Build Options
  • Building OpenWrt ON OpenWrt
  • Using the SDK
  • Cross Compiling your application
  • Building a single package
  • Using External Toolchain
  • Image Builder frontends
  • Using the Image Builder
  • OpenWrt Feeds
• Adding new packages to OpenWrt
  • "Hello, world!" package for OpenWrt
    • Preparing your OpenWrt build system for use
    • Creating a simple “Hello, world!” application
    • Creating a package from your application
    • Including your package feed into OpenWrt build system
    • Building, deploying and testing your application
    • Migrating to use GNU make in your application
    • Patching your application: Adding new files
    • Patching your application: Editing existing files
  • Create a sample procd init script
• Adding existing packages to OpenWrt
  • Autotools packages
  • Cmake packages
  • Meson packages
  • Patching a package
  • Using Dependencies
  • Package creation reference manual
    • BuildPackage variables
    • Testing a package Makefile
    • PKG_FIXUP
    • Package Sourcecode
    • BuildPackage defines
    • Building in a subdirectory of the source
    • Dependency Types
    • Configure a package source
    • Adding configuration options
    • Working on local application source
    • Creating packages for kernel modules
    • File installation macros
    • Packaging a service
• Debugging
  • GNU Debugger
• Device management in OpenWrt
  • Adding a new device
  • Adding new device support
  • Adding new platform support
  • Device support policies / best practices
  • Device Tree Usage in OpenWrt (DTS)
  • Mounting Block Devices
• Contribution guidelines
  • Working with patches
    • Prepare quilt configuration
    • Adding a new patch
    • Edit an existing patch
    • Adding or editing kernel patches
    • Adding or editing toolchain patches
    • Naming patches
    • Refreshing patches
    • Iteratively modify patches without cleaning the source tree
  • Submitting patches
  • Reporting bugs
  • Sending patches by git send-email
  • Working with GitHub
• Security
  • OpenWrt SELinux policy development, customization, and testing

• Networking
  • Theory
  • Datagram Structures
  • Linux network interfaces
  • Networking in the Linux Kernel
  • Device Support: MAC address setup
  • Multicast DNS Daemon
  • Netifid
  • Network scripts
  • Wireless Modes
  • Network Filesystems
• Coding in OpenWrt
  • Write shell scripts in OpenWrt
  • Init Scripts
    • procd init scripts
  • UCI (Unified Configuration Interface)
  • Ubox
    • libubox
  • Ubus (OpenWrt micro bus architecture)
    • uBus IPC/RPC System
    • ubus file
    • ubus iwinfo
    • ubus network
    • ubus service
    • ubus session
    • ubus system
    • ubus uci
  • OpenWrt release management
    • Making OpenWrt releases
      • High-level release process
      • How to create a major release
      • How to create a service release
      • How to prepare buildbot for major release
      • Prepare Nitrokey 3A Mini for build artifact signing
      • Update package lists
      • Update wikidata
    • Release goals
      • Release goals for 23.XX
      • Release goals for 22.03
      • Release goals for 21.XX
      • Release Goals for 21.02
      • Release goals for 20.XX
      • Release goals for 19.07.4