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Nicolas Dichtel d43b75fbc2 vrf: don't run conntrack on vrf with !dflt qdisc 
After the below patch, the conntrack attached to skb is set to "notrack" in
the context of vrf device, for locally generated packets.
But this is true only when the default qdisc is set to the vrf device. When
changing the qdisc, notrack is not set anymore.
In fact, there is a shortcut in the vrf driver, when the default qdisc is
set, see commit dcdd43c41e ("net: vrf: performance improvements for
IPv4") for more details.

This patch ensures that the behavior is always the same, whatever the qdisc
is.

To demonstrate the difference, a new test is added in conntrack_vrf.sh.

Fixes: 8c9c296adf ("vrf: run conntrack only in context of lower/physdev for locally generated packets")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Florian Westphal <fw@strlen.de>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-12-08 01:05:55 +01:00
arch xen: branch for v5.16-rc3 2021-11-26 09:54:13 -08:00
block
certs
crypto
Documentation Networking fixes for 5.16-rc3, including fixes from netfilter. 2021-11-26 12:58:53 -08:00
drivers vrf: don't run conntrack on vrf with !dflt qdisc 2021-12-08 01:05:55 +01:00
fs fuse fixes for 5.16-rc3 2021-11-26 12:01:31 -08:00
include siphash: use _unaligned version by default 2021-11-29 19:50:50 -08:00
init
ipc
kernel Power management fixes for 5.16-rc3 2021-11-26 12:14:50 -08:00
lib siphash: use _unaligned version by default 2021-11-29 19:50:50 -08:00
LICENSES
mm
net netfilter: nfnetlink_queue: silence bogus compiler warning 2021-11-30 23:15:11 +01:00
samples
scripts
security
sound xen: branch for v5.16-rc3 2021-11-26 09:54:13 -08:00
tools vrf: don't run conntrack on vrf with !dflt qdisc 2021-12-08 01:05:55 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
CREDITS
Kbuild
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MAINTAINERS MAINTAINERS: s390/net: add Alexandra and Wenjia as maintainer 2021-11-30 12:20:07 +00:00
Makefile drm fixes for 5.16-rc3 2021-11-25 18:21:20 -08:00
README

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.