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Fernando Fernandez Mancera 33dd6711f0 netfilter: nft_tunnel: fix geneve_opt dump 
[ Upstream commit 22a9613de4 ]

When dumping a nft_tunnel with more than one geneve_opt configured the
netlink attribute hierarchy should be as follow:

 NFTA_TUNNEL_KEY_OPTS
 |
 |--NFTA_TUNNEL_KEY_OPTS_GENEVE
 |  |
 |  |--NFTA_TUNNEL_KEY_GENEVE_CLASS
 |  |--NFTA_TUNNEL_KEY_GENEVE_TYPE
 |  |--NFTA_TUNNEL_KEY_GENEVE_DATA
 |
 |--NFTA_TUNNEL_KEY_OPTS_GENEVE
 |  |
 |  |--NFTA_TUNNEL_KEY_GENEVE_CLASS
 |  |--NFTA_TUNNEL_KEY_GENEVE_TYPE
 |  |--NFTA_TUNNEL_KEY_GENEVE_DATA
 |
 |--NFTA_TUNNEL_KEY_OPTS_GENEVE
 ...

Otherwise, userspace tools won't be able to fetch the geneve options
configured correctly.

Fixes: 925d844696 ("netfilter: nft_tunnel: add support for geneve opts")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-06-27 11:07:12 +01:00
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README 

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 Restructured Text 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.