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[ Upstream commit025c65e119] If an xfrmi is associated to a vrf layer 3 master device, xfrm_policy_check() fails after traffic decapsulation. The input interface is replaced by the layer 3 master device, and hence xfrmi_decode_session() can't match the xfrmi anymore to satisfy policy checking. Extend ingress xfrmi lookup to honor the original layer 3 slave device, allowing xfrm interfaces to operate within a vrf domain. Fixes:f203b76d78("xfrm: Add virtual xfrm interfaces") Signed-off-by: Martin Willi <martin@strongswan.org> 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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.