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selftests/bonding: add a test for bonding lladdr target

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This is a regression test for commit 592335a416 ("bonding: accept
unsolicited NA message") and commit b7f14132bf ("bonding: use unspecified
address if no available link local address"). When the bond interface
up and no available link local address, unspecified address(::) is used to
send the NS message. The unsolicited NA message should also be accepted
for validation.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jonathan Toppins <jtoppins@redhat.com>
Link: https://lore.kernel.org/r/20220920033047.173244-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Hangbin Liu 2022-09-20 11:30:47 +08:00 committed by Jakub Kicinski
parent 4633b39183
commit 152e8ec776
2 changed files with 66 additions and 0 deletions
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1
tools/testing/selftests/drivers/net/bonding/Makefile
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@ -2,5 +2,6 @@
# Makefile for net selftests
TEST_PROGS := bond-break-lacpdu-tx.sh
TEST_PROGS += bond-lladdr-target.sh
include ../../../lib.mk

65
tools/testing/selftests/drivers/net/bonding/bond-lladdr-target.sh Executable file
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@ -0,0 +1,65 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Regression Test:
# Verify bond interface could up when set IPv6 link local address target.
#
# +----------------+
# | br0 |
# | | | sw
# | veth0 veth1 |
# +---+-------+----+
# | |
# +---+-------+----+
# | veth0 veth1 |
# | | | host
# | bond0 |
# +----------------+
#
# We use veths instead of physical interfaces
sw="sw-$(mktemp -u XXXXXX)"
host="ns-$(mktemp -u XXXXXX)"
cleanup()
{
ip netns del $sw
ip netns del $host
}
trap cleanup 0 1 2
ip netns add $sw
ip netns add $host
ip -n $host link add veth0 type veth peer name veth0 netns $sw
ip -n $host link add veth1 type veth peer name veth1 netns $sw
ip -n $sw link add br0 type bridge
ip -n $sw link set br0 up
sw_lladdr=$(ip -n $sw addr show br0 | awk '/fe80/{print $2}' | cut -d'/' -f1)
# sleep some time to make sure bridge lladdr pass DAD
sleep 2
ip -n $host link add bond0 type bond mode 1 ns_ip6_target ${sw_lladdr} \
arp_validate 3 arp_interval 1000
# add a lladdr for bond to make sure there is a route to target
ip -n $host addr add fe80::beef/64 dev bond0
ip -n $host link set bond0 up
ip -n $host link set veth0 master bond0
ip -n $host link set veth1 master bond0
ip -n $sw link set veth0 master br0
ip -n $sw link set veth1 master br0
ip -n $sw link set veth0 up
ip -n $sw link set veth1 up
sleep 5
rc=0
if ip -n $host link show bond0 | grep -q LOWER_UP; then
echo "PASS"
else
echo "FAIL"
rc=1
fi
exit $rc