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a2840d4e25
Extend the End.X behavior to accept an output interface as an optional attribute and make use of it when resolving a route. This is needed when user space wants to use a link-local address as the nexthop address. Before: # ip route add 2001:db8:1::/64 encap seg6local action End.X nh6 fe80::1 oif eth0 dev sr6 # ip route add 2001:db8:2::/64 encap seg6local action End.X nh6 2001:db8:10::1 dev sr6 $ ip -6 route show 2001:db8:1::/64 encap seg6local action End.X nh6 fe80::1 dev sr6 metric 1024 pref medium 2001:db8:2::/64 encap seg6local action End.X nh6 2001:db8:10::1 dev sr6 metric 1024 pref medium After: # ip route add 2001:db8:1::/64 encap seg6local action End.X nh6 fe80::1 oif eth0 dev sr6 # ip route add 2001:db8:2::/64 encap seg6local action End.X nh6 2001:db8:10::1 dev sr6 $ ip -6 route show 2001:db8:1::/64 encap seg6local action End.X nh6 fe80::1 oif eth0 dev sr6 metric 1024 pref medium 2001:db8:2::/64 encap seg6local action End.X nh6 2001:db8:10::1 dev sr6 metric 1024 pref medium Note that the oif attribute is not dumped to user space when it was not specified (as an oif of 0) since each entry keeps track of the optional attributes that it parsed during configuration (see struct seg6_local_lwt::parsed_optattrs). Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Andrea Mayer <andrea.mayer@uniroma2.it> Link: https://patch.msgid.link/20250612122323.584113-4-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@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 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.