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[ Upstream commit68ac0f3810] xfrm ineterface does not allow xfrm if_id = 0 fail to create or update xfrm state and policy. With this commit: ip xfrm policy add src 192.0.2.1 dst 192.0.2.2 dir out if_id 0 RTNETLINK answers: Invalid argument ip xfrm state add src 192.0.2.1 dst 192.0.2.2 proto esp spi 1 \ reqid 1 mode tunnel aead 'rfc4106(gcm(aes))' \ 0x1111111111111111111111111111111111111111 96 if_id 0 RTNETLINK answers: Invalid argument v1->v2 change: - add Fixes: tag Fixes:9f8550e4bd("xfrm: fix disable_xfrm sysctl when used on xfrm interfaces") Signed-off-by: Antony Antony <antony.antony@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Sasha Levin <sashal@kernel.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 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.