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selftests: rtnetlink: add neighbour update test

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Check that protocol and flags are updated correctly for
neighbour and pneigh entries.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/d28f72b5b4ff4c9ecbbbde06146a938dcc4c264a.1772894876.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Sabrina Dubroca 2026-03-10 22:59:17 +01:00 committed by Jakub Kicinski
parent cbada10488
commit 68e76fc12d
1 changed files with 55 additions and 0 deletions
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55
tools/testing/selftests/net/rtnetlink.sh
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@ -28,6 +28,7 @@ ALL_TESTS="
kci_test_fdb_get
kci_test_fdb_del
kci_test_neigh_get
kci_test_neigh_update
kci_test_bridge_parent_id
kci_test_address_proto
kci_test_enslave_bonding
@ -1160,6 +1161,60 @@ kci_test_neigh_get()
end_test "PASS: neigh get"
}
kci_test_neigh_update()
{
dstip=10.0.2.4
dstmac=de:ad:be:ef:13:37
local ret=0
for proxy in "" "proxy" ; do
# add a neighbour entry without any flags
run_cmd ip neigh add $proxy $dstip dev "$devdummy" lladdr $dstmac nud permanent
run_cmd_grep $dstip ip neigh show $proxy
run_cmd_grep_fail "$dstip dev $devdummy .*\(managed\|use\|router\|extern\)" ip neigh show $proxy
# set the extern_learn flag, but no other
run_cmd ip neigh change $proxy $dstip dev "$devdummy" extern_learn
run_cmd_grep "$dstip dev $devdummy .* extern_learn" ip neigh show $proxy
run_cmd_grep_fail "$dstip dev $devdummy .* \(managed\|use\|router\)" ip neigh show $proxy
# flags are reset when not provided
run_cmd ip neigh change $proxy $dstip dev "$devdummy"
run_cmd_grep $dstip ip neigh show $proxy
run_cmd_grep_fail "$dstip dev $devdummy .* extern_learn" ip neigh show $proxy
# add a protocol
run_cmd ip neigh change $proxy $dstip dev "$devdummy" protocol boot
run_cmd_grep "$dstip dev $devdummy .* proto boot" ip neigh show $proxy
# protocol is retained when not provided
run_cmd ip neigh change $proxy $dstip dev "$devdummy"
run_cmd_grep "$dstip dev $devdummy .* proto boot" ip neigh show $proxy
# change protocol
run_cmd ip neigh change $proxy $dstip dev "$devdummy" protocol static
run_cmd_grep "$dstip dev $devdummy .* proto static" ip neigh show $proxy
# also check an extended flag for non-proxy neighs
if [ "$proxy" = "" ]; then
run_cmd ip neigh change $proxy $dstip dev "$devdummy" managed
run_cmd_grep "$dstip dev $devdummy managed" ip neigh show $proxy
run_cmd ip neigh change $proxy $dstip dev "$devdummy" lladdr $dstmac
run_cmd_grep_fail "$dstip dev $devdummy managed" ip neigh show $proxy
fi
run_cmd ip neigh del $proxy $dstip dev "$devdummy"
done
if [ $ret -ne 0 ];then
end_test "FAIL: neigh update"
return 1
fi
end_test "PASS: neigh update"
}
kci_test_bridge_parent_id()
{
local ret=0