1 #!/bin/sh 2 3 ################################################################################ 4 ## ## 5 ## Copyright (c) International Business Machines Corp., 2005 ## 6 ## ## 7 ## This program is free software; you can redistribute it and#or modify ## 8 ## it under the terms of the GNU General Public License as published by ## 9 ## the Free Software Foundation; either version 2 of the License, or ## 10 ## (at your option) any later version. ## 11 ## ## 12 ## This program is distributed in the hope that it will be useful, but ## 13 ## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ## 14 ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ## 15 ## for more details. ## 16 ## ## 17 ## You should have received a copy of the GNU General Public License ## 18 ## along with this program; if not, write to the Free Software ## 19 ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ## 20 ## ## 21 ## ## 22 ################################################################################ 23 # 24 # File: 25 # get_ifname 26 # 27 # Description: 28 # Get the interface name which belongs to the specified test link 29 # 30 # Author: 31 # Mitsuru Chinen <mitch (at] jp.ibm.com> 32 # 33 # Arguments: 34 # $1: Set the host type to set the IPv4 address 35 # lhost - local host / rhost - remote host 36 # $2: The number of the test link 37 # 38 # History: 39 # Oct 19 2005 - Created (Mitsuru Chinen) 40 # 41 #----------------------------------------------------------------------- 42 #Uncomment line below for debug output. 43 #trace_logic=${trace_logic:-"set -x"} 44 $trace_logic 45 46 # Make sure the value of LTPROOT 47 LTPROOT=${LTPROOT:-`(cd ../../ ; pwd)`} 48 TMPDIR=${TMPDIR:-/tmp} 49 export LTPROOT TMPDIR 50 51 # Check the environment variable for the test 52 . check_envval || exit 1 53 54 # Arguments 55 if [ $# -ne 2 ]; then 56 echo "Usage: $0 host_type link_num" >&2 57 exit 1 58 fi 59 host_type=$1 60 link_num=$2 61 62 # Check the host type 63 case $host_type in 64 lhost) 65 hwaddrs="$LHOST_HWADDRS" 66 ;; 67 68 rhost) 69 hwaddrs="$RHOST_HWADDRS" 70 ;; 71 72 *) 73 echo "$0: 1st argument must be lhost or rhost" >&2 74 exit 1 75 ;; 76 esac 77 78 # Pick HWaddr from HWaddr list 79 field=`expr $link_num + 1` 80 hwaddr=`echo $hwaddrs | cut -d ' ' -f $field` 81 if [ x${hwaddr} = x ]; then 82 echo "HWaddr list ($hwaddrs) is something wrong." >&2 83 exit 1 84 fi 85 86 ip_link_show_out=`mktemp $TMPDIR/tmp.XXXXXXXX` 87 if [ $host_type = lhost ]; then 88 ip link show > $ip_link_show_out 2>&1 89 else 90 $LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH ip link show' \ 91 > $ip_link_show_out 2>&1 92 fi 93 ifname=`grep -1 -i $hwaddr $ip_link_show_out | head -n 1 | awk '{ print $2 }' | sed "s/://"` 2>/dev/null 94 rm -f $ip_link_show_out 95 96 # Detect a interface name from the HWaddr 97 if [ x$ifname = x ]; then 98 echo "Interface which has $hwaddr is not found." >&2 99 exit 1 100 fi 101 102 echo $ifname 103 exit 0 104
