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94 lines
2.6 KiB
94 lines
2.6 KiB
7 months ago
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#!/bin/sh
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#==============================================================================
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# Copyright (c) 2015 Red Hat, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of version 2 the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Written by Matus Marhefka <mmarhefk@redhat.com>
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#
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#==============================================================================
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#
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# Tests that a separate network namespace cannot affect sysfs contents
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# of the main namespace.
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#==============================================================================
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TCID="netns_sysfs"
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TST_TOTAL=3
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NS_TYPE="net,mnt"
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DUMMYDEV_HOST="dummy_test0"
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DUMMYDEV="dummy_test1"
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. test.sh
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if tst_kvcmp -lt "2.6.35"; then
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tst_brkm TCONF "sysfs is not mount namespace aware for kernels older than 2.6.35"
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fi
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setns_check
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if [ $? -eq 32 ]; then
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tst_brkm TCONF "setns not supported"
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fi
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cleanup()
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{
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tst_rmdir
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ip link del $DUMMYDEV_HOST 2>/dev/null
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ip link del $DUMMYDEV 2>/dev/null
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kill -9 $NS_HANDLE 2>/dev/null
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}
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tst_tmpdir
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NS_HANDLE=$(ns_create $NS_TYPE)
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if [ $? -eq 1 ]; then
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tst_resm TINFO "$NS_HANDLE"
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tst_brkm TBROK "unable to create a new network namespace"
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fi
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TST_CLEANUP=cleanup
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ip link add $DUMMYDEV_HOST type dummy || \
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tst_brkm TBROK "failed to add a new (host) dummy device"
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ns_exec $NS_HANDLE $NS_TYPE mount --make-rprivate /sys
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ns_exec $NS_HANDLE $NS_TYPE ip link add $DUMMYDEV type dummy || \
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tst_brkm TBROK "failed to add a new dummy device"
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ns_exec $NS_HANDLE $NS_TYPE mount -t sysfs none /sys 2>/dev/null
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# TEST CASE #1
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ns_exec $NS_HANDLE $NS_TYPE test -e /sys/class/net/$DUMMYDEV
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if [ $? -eq 0 ]; then
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tst_resm TPASS "sysfs in new namespace has $DUMMYDEV interface"
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else
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tst_resm TFAIL "sysfs in new namespace does not have $DUMMYDEV interface"
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fi
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# TEST CASE #2
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ns_exec $NS_HANDLE $NS_TYPE test -e /sys/class/net/$DUMMYDEV_HOST
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if [ $? -ne 0 ]; then
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tst_resm TPASS "sysfs in new namespace does not have $DUMMYDEV_HOST interface"
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else
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tst_resm TFAIL "sysfs in new namespace contains $DUMMYDEV_HOST interface"
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fi
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# TEST CASE #3
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test -e /sys/class/net/$DUMMYDEV
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if [ $? -ne 0 ]; then
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tst_resm TPASS "sysfs not affected by a separate namespace"
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else
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tst_resm TFAIL "sysfs affected by a separate namespace"
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fi
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tst_exit
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