Donald Hunter bf2ac490d2 netfilter: nfnetlink: Handle ACK flags for batch messages
The NLM_F_ACK flag is ignored for nfnetlink batch begin and end
messages. This is a problem for ynl which wants to receive an ack for
every message it sends, not just the commands in between the begin/end
messages.

Add processing for ACKs for begin/end messages and provide responses
when requested.

I have checked that iproute2, pyroute2 and systemd are unaffected by
this change since none of them use NLM_F_ACK for batch begin/end.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20240418104737.77914-5-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-22 17:20:42 -07:00
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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.
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