I checked out some of the openwrt components, and noticed, that at least 2 of them do not have any license information in them that I could find. The components I am talking about are udebug, and firewall4.
I then also checked https://openwrt.org/license, which does mention the following:
If not otherwise stated in the source files, the OpenWrt build environment is provided under the terms of the GNU General Public License Version 2. The exact GPLv2 license text can be found in the file LICENSE in the source repository.
My interpretation is, that this statement only concerns the build environment, so it might not apply to the component source code itself?
Does anyone know if these two components are actually provided under a license?