1#!/bin/sh 2#============================================================================== 3# Copyright (c) 2015 Red Hat, Inc. 4# 5# This program is free software: you can redistribute it and/or modify 6# it under the terms of version 2 the GNU General Public License as 7# published by the Free Software Foundation. 8# 9# This program is distributed in the hope that it will be useful, 10# but WITHOUT ANY WARRANTY; without even the implied warranty of 11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12# GNU General Public License for more details. 13# 14# You should have received a copy of the GNU General Public License 15# along with this program. If not, see <http://www.gnu.org/licenses/>. 16# 17# Written by Matus Marhefka <mmarhefk@redhat.com> 18# 19#============================================================================== 20# 21# Tests that a separate network namespace cannot affect sysfs contents 22# of the main namespace. 23#============================================================================== 24 25TCID="netns_sysfs" 26TST_TOTAL=3 27NS_TYPE="net,mnt" 28DUMMYDEV_HOST="dummy_test0" 29DUMMYDEV="dummy_test1" 30. test.sh 31 32if tst_kvcmp -lt "2.6.35"; then 33 tst_brkm TCONF "sysfs is not mount namespace aware for kernels older than 2.6.35" 34fi 35 36setns_check 37if [ $? -eq 32 ]; then 38 tst_brkm TCONF "setns not supported" 39fi 40 41cleanup() 42{ 43 tst_rmdir 44 ip link del $DUMMYDEV_HOST 2>/dev/null 45 ip link del $DUMMYDEV 2>/dev/null 46 kill -9 $NS_HANDLE 2>/dev/null 47} 48 49tst_tmpdir 50NS_HANDLE=$(ns_create $NS_TYPE) 51if [ $? -eq 1 ]; then 52 tst_resm TINFO "$NS_HANDLE" 53 tst_brkm TBROK "unable to create a new network namespace" 54fi 55TST_CLEANUP=cleanup 56 57ip link add $DUMMYDEV_HOST type dummy || \ 58 tst_brkm TBROK "failed to add a new (host) dummy device" 59 60ns_exec $NS_HANDLE $NS_TYPE mount --make-rprivate /sys 61ns_exec $NS_HANDLE $NS_TYPE ip link add $DUMMYDEV type dummy || \ 62 tst_brkm TBROK "failed to add a new dummy device" 63ns_exec $NS_HANDLE $NS_TYPE mount -t sysfs none /sys 2>/dev/null 64 65 66# TEST CASE #1 67ns_exec $NS_HANDLE $NS_TYPE test -e /sys/class/net/$DUMMYDEV 68if [ $? -eq 0 ]; then 69 tst_resm TPASS "sysfs in new namespace has $DUMMYDEV interface" 70else 71 tst_resm TFAIL "sysfs in new namespace does not have $DUMMYDEV interface" 72fi 73 74 75# TEST CASE #2 76ns_exec $NS_HANDLE $NS_TYPE test -e /sys/class/net/$DUMMYDEV_HOST 77if [ $? -ne 0 ]; then 78 tst_resm TPASS "sysfs in new namespace does not have $DUMMYDEV_HOST interface" 79else 80 tst_resm TFAIL "sysfs in new namespace contains $DUMMYDEV_HOST interface" 81fi 82 83 84# TEST CASE #3 85test -e /sys/class/net/$DUMMYDEV 86if [ $? -ne 0 ]; then 87 tst_resm TPASS "sysfs not affected by a separate namespace" 88else 89 tst_resm TFAIL "sysfs affected by a separate namespace" 90fi 91 92 93tst_exit 94