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e30ea48b5e
Add new protocol field to PDP context that determines the transmit path IP protocol to encapsulate the original packets, either IPv4 or IPv6. Relax existing netlink attribute checks to allow to specify different family in MS and peer attributes from the control plane. Use build helpers to tx path to encapsulate IPv4-in-IPv6-GTP and IPv6-in-IPv4-GTP according to the user-specified configuration. From rx path, snoop for the inner protocol header since outer skb->protocol might differ and use this to validate for valid PDP context and to restore skb->protocol after decapsulation. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.