Mark Abe
d6933d6aed
*_pie_verify_template() rejected a template that lacked the SIP, DIP, SMAC or DMAC field a rule needs, but silently accepted one missing the L4 source/destination port or inner-VLAN fields. When such a template was picked the corresponding match was simply dropped: a "flower ip_proto udp dst_port 5353" offload installed against an L2-only template matched every UDP frame instead of just mDNS. The same gap exists identically in all four PIE-based SoCs (rtl838x, rtl839x, rtl930x, rtl931x): each verify_template() stops at the SMAC/DMAC check and never looks at the L4 port or VLAN fields. Reject a template that does not carry the port/VLAN field the rule masks, so the block search falls through to one that does. The failure was observed on an RTL9302C (Zyxel XGS1210-12, rtl930x): a dst_port 5353 drop rule also counted UDP sent to other ports. rtl838x/ 839x/931x share the same verify_template() structure and template layout, so the fix is applied there too, though only rtl930x hardware was available to reproduce and verify it. Assisted-by: Claude Code (Anthropic Claude Sonnet 5) Signed-off-by: Mark Abe <github@mab.wien> Link: https://github.com/openwrt/openwrt/pull/25024 Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Download
Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.
If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.
An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:
Development
To build your own firmware you need a GNU/Linux, BSD or macOS system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.8+ rsync subversion unzip which
Quickstart
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Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
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LuCI Web Interface: Modern and modular interface to control the device via a web browser.
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OpenWrt Packages: Community repository of ported packages.
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OpenWrt Routing: Packages specifically focused on (mesh) routing.
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OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0