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

[Ido Schimmel <idosch@nvidia.com>]

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

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2.49.0