These are the Funtoo network configuration scripts, called "corenetwork". You can view documentation for Funtoo Linux Network Configuration here.
Our official Bitbucket repository is located at https://code.funtoo.org/bitbucket/projects/CORE/repos/corenetwork/browse. Updates from this repository are periodically mirrored to the GitHub repository https://github.com/funtoo/corenetwork, which is used by the ebuild to download releases of corenetwork.
You can view all open bugs for corenetwork using this Jira query. Note that we use the label
corenetwork for these issues. Once an issue to be created and has been moved to the "Ready to fix" state, code.funtoo.org can be used to send in pull requests.