Commit 3920431d authored by Jakub Kicinski's avatar Jakub Kicinski Committed by Paolo Abeni
Browse files

selftests: net: add very basic test for netdev names and namespaces 



Add selftest for fixes around naming netdevs and namespaces.

Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Reviewed-by: default avatarPrzemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 8e15aee6

tools/testing/selftests/net/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ TEST_PROGS += gro.sh 
TEST_PROGS += gre_gso.sh

TEST_PROGS += cmsg_so_mark.sh

TEST_PROGS += cmsg_time.sh cmsg_ipv6.sh

TEST_PROGS += netns-name.sh

TEST_PROGS += srv6_end_dt46_l3vpn_test.sh

TEST_PROGS += srv6_end_dt4_l3vpn_test.sh

TEST_PROGS += srv6_end_dt6_l3vpn_test.sh

tools/testing/selftests/net/netns-name.sh

0 → 100755
+87 −0
Original line number Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



set -o pipefail



NS=netns-name-test

DEV=dummy-dev0

DEV2=dummy-dev1

ALT_NAME=some-alt-name



RET_CODE=0



cleanup() {

    ip netns del $NS

}



trap cleanup EXIT



fail() {

    echo "ERROR: ${1:-unexpected return code} (ret: $_)" >&2

    RET_CODE=1

}



ip netns add $NS



#

# Test basic move without a rename

#

ip -netns $NS link add name $DEV type dummy || fail

ip -netns $NS link set dev $DEV netns 1 ||

    fail "Can't perform a netns move"

ip link show dev $DEV >> /dev/null || fail "Device not found after move"

ip link del $DEV || fail



#

# Test move with a conflict

#

ip link add name $DEV type dummy

ip -netns $NS link add name $DEV type dummy || fail

ip -netns $NS link set dev $DEV netns 1 2> /dev/null &&

    fail "Performed a netns move with a name conflict"

ip link show dev $DEV >> /dev/null || fail "Device not found after move"

ip -netns $NS link del $DEV || fail

ip link del $DEV || fail



#

# Test move with a conflict and rename

#

ip link add name $DEV type dummy

ip -netns $NS link add name $DEV type dummy || fail

ip -netns $NS link set dev $DEV netns 1 name $DEV2 ||

    fail "Can't perform a netns move with rename"

ip link del $DEV2 || fail

ip link del $DEV || fail



#

# Test dup alt-name with netns move

#

ip link add name $DEV type dummy || fail

ip link property add dev $DEV altname $ALT_NAME || fail

ip -netns $NS link add name $DEV2 type dummy || fail

ip -netns $NS link property add dev $DEV2 altname $ALT_NAME || fail



ip -netns $NS link set dev $DEV2 netns 1 2> /dev/null &&

    fail "Moved with alt-name dup"



ip link del $DEV || fail

ip -netns $NS link del $DEV2 || fail



#

# Test creating alt-name in one net-ns and using in another

#

ip -netns $NS link add name $DEV type dummy || fail

ip -netns $NS link property add dev $DEV altname $ALT_NAME || fail

ip -netns $NS link set dev $DEV netns 1 || fail

ip link show dev $ALT_NAME >> /dev/null || fail "Can't find alt-name after move"

ip  -netns $NS link show dev $ALT_NAME 2> /dev/null &&

    fail "Can still find alt-name after move"

ip link del $DEV || fail



echo -ne "$(basename $0) \t\t\t\t"

if [ $RET_CODE -eq 0 ]; then

    echo "[  OK  ]"

else

    echo "[ FAIL ]"

fi

exit $RET_CODE