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selftests: net: Add a selftest for externally validated neighbor entries

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Add test cases for externally validated neighbor entries, testing both
IPv4 and IPv6. Name the file "test_neigh.sh" so that it could be
possibly extended in the future with more neighbor test cases.

Example output:

 # ./test_neigh.sh
 TEST: IPv4 "extern_valid" flag: Add entry                           [ OK ]
 TEST: IPv4 "extern_valid" flag: Add with an invalid state           [ OK ]
 TEST: IPv4 "extern_valid" flag: Add with "use" flag                 [ OK ]
 TEST: IPv4 "extern_valid" flag: Replace entry                       [ OK ]
 TEST: IPv4 "extern_valid" flag: Replace entry with "managed" flag   [ OK ]
 TEST: IPv4 "extern_valid" flag: Replace with an invalid state       [ OK ]
 TEST: IPv4 "extern_valid" flag: Interface down                      [ OK ]
 TEST: IPv4 "extern_valid" flag: Carrier down                        [ OK ]
 TEST: IPv4 "extern_valid" flag: Transition to "reachable" state     [ OK ]
 TEST: IPv4 "extern_valid" flag: Transition back to "stale" state    [ OK ]
 TEST: IPv4 "extern_valid" flag: Forced garbage collection           [ OK ]
 TEST: IPv4 "extern_valid" flag: Periodic garbage collection         [ OK ]
 TEST: IPv6 "extern_valid" flag: Add entry                           [ OK ]
 TEST: IPv6 "extern_valid" flag: Add with an invalid state           [ OK ]
 TEST: IPv6 "extern_valid" flag: Add with "use" flag                 [ OK ]
 TEST: IPv6 "extern_valid" flag: Replace entry                       [ OK ]
 TEST: IPv6 "extern_valid" flag: Replace entry with "managed" flag   [ OK ]
 TEST: IPv6 "extern_valid" flag: Replace with an invalid state       [ OK ]
 TEST: IPv6 "extern_valid" flag: Interface down                      [ OK ]
 TEST: IPv6 "extern_valid" flag: Carrier down                        [ OK ]
 TEST: IPv6 "extern_valid" flag: Transition to "reachable" state     [ OK ]
 TEST: IPv6 "extern_valid" flag: Transition back to "stale" state    [ OK ]
 TEST: IPv6 "extern_valid" flag: Forced garbage collection           [ OK ]
 TEST: IPv6 "extern_valid" flag: Periodic garbage collection         [ OK ]

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250626073111.244534-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ido Schimmel
2025-06-26 10:31:11 +03:00
committed by Jakub Kicinski
parent 03dc03fa04
commit 171f2ee31a
2 changed files with 367 additions and 0 deletions
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1
tools/testing/selftests/net/Makefile
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@@ -100,6 +100,7 @@ TEST_PROGS += test_vxlan_mdb.sh
TEST_PROGS += test_bridge_neigh_suppress.sh
TEST_PROGS += test_vxlan_nolocalbypass.sh
TEST_PROGS += test_bridge_backup_port.sh
TEST_PROGS += test_neigh.sh
TEST_PROGS += fdb_flush.sh fdb_notify.sh
TEST_PROGS += fq_band_pktlimit.sh
TEST_PROGS += vlan_hw_filter.sh