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      1 #!/bin/sh
      2 # Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved.
      3 # Copyright (c) International Business Machines  Corp., 2005
      4 #
      5 # This program is free software; you can redistribute it and/or
      6 # modify it under the terms of the GNU General Public License as
      7 # published by the Free Software Foundation; either version 2 of
      8 # the License, or (at your option) any later version.
      9 #
     10 # This program is distributed in the hope that it would be useful,
     11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 # GNU General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU General Public License
     16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
     17 #
     18 # Author: Mitsuru Chinen <mitch (at] jp.ibm.com>
     19 
     20 TST_TOTAL=1
     21 TCID=if4-addr-change
     22 TST_CLEANUP="tst_restore_ipaddr"
     23 
     24 . test_net.sh
     25 
     26 # Broadcast address of the tested network
     27 CHECK_INTERVAL=${CHECK_INTERVAL:-$(($NS_TIMES / 100))}
     28 # Maximum host portion of the IPv4 address on the local host
     29 LHOST_IPV4_HOST_MAX="254"
     30 
     31 trap "tst_brkm TBROK 'test interrupted'" INT
     32 
     33 tst_check_cmds ifconfig
     34 
     35 tst_resm TINFO "ifconfig changes IPv4 address $NS_TIMES times"
     36 
     37 tst_restore_ipaddr
     38 
     39 check_icmpv4_connectivity $(tst_iface) $(tst_ipaddr rhost) || \
     40 	tst_brkm TBROK "Failed to ping to $(tst_ipaddr rhost)"
     41 
     42 local cnt=0
     43 num=1
     44 while [ $cnt -lt $NS_TIMES ]; do
     45 	# Define the network portion
     46 	num=$(($num + 1))
     47 	[ $num -gt $LHOST_IPV4_HOST_MAX ] && num=1
     48 
     49 	[ $num -eq $RHOST_IPV4_HOST ] && continue
     50 
     51 	# Change IPv4 address
     52 	lhost_ipv4addr="${IPV4_NETWORK}.${num}"
     53 
     54 	ifconfig $(tst_iface) $lhost_ipv4addr netmask 255.255.255.0 \
     55 		broadcast 255.255.255.255 || \
     56 		tst_brkm TFAIL "Failed to change into ${lhost_ipv4addr}"
     57 
     58 	cnt=$(($cnt + 1))
     59 
     60 	[ $CHECK_INTERVAL -eq 0 ] && continue
     61 	[ $(($cnt % $CHECK_INTERVAL)) -ne 0 ] && continue
     62 
     63 	tst_resm TINFO "ping from $lhost_ipv4addr to $(tst_ipaddr rhost)"
     64 	check_icmpv4_connectivity $(tst_iface) $(tst_ipaddr rhost) || \
     65 		tst_brkm TFAIL "$(tst_iface) link broken after ${cnt} times"
     66 done
     67 
     68 tst_resm TINFO "ping from $lhost_ipv4addr to $(tst_ipaddr rhost)"
     69 check_icmpv4_connectivity $(tst_iface) $(tst_ipaddr rhost) || \
     70 	tst_brkm TFAIL "$(tst_iface) is broken"
     71 
     72 tst_resm TPASS "Test is finished successfully"
     73 
     74 tst_exit
     75