netdev - [PATCH net-next 0/2] Add support for externally validated neighbor entries

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Message-ID: <20250611141551.462569-1-idosch@nvidia.com>
Date: Wed, 11 Jun 2025 17:15:49 +0300
From: Ido Schimmel <idosch@...dia.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<edumazet@...gle.com>, <horms@...nel.org>, <donald.hunter@...il.com>,
	<petrm@...dia.com>, <razor@...ckwall.org>, <daniel@...earbox.net>, "Ido
 Schimmel" <idosch@...dia.com>
Subject: [PATCH net-next 0/2] Add support for externally validated neighbor entries

Patch #1 adds a new neighbor flag ("extern_valid") that prevents the
kernel from invalidating or removing a neighbor entry, while allowing
the kernel to notify user space when the entry becomes reachable. See
motivation and implementation details in the commit message.

Patch #2 adds a selftest.

Ido Schimmel (2):
  neighbor: Add NTF_EXT_VALIDATED flag for externally validated entries
  selftests: net: Add a selftest for externally validated neighbor
    entries

 Documentation/netlink/specs/rt-neigh.yaml |   1 +
 include/net/neighbour.h                   |   4 +-
 include/uapi/linux/neighbour.h            |   5 +
 net/core/neighbour.c                      |  75 ++++-
 tools/testing/selftests/net/Makefile      |   1 +
 tools/testing/selftests/net/test_neigh.sh | 337 ++++++++++++++++++++++
 6 files changed, 413 insertions(+), 10 deletions(-)
 create mode 100755 tools/testing/selftests/net/test_neigh.sh

-- 
2.49.0