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- #!/bin/sh
- ################################################################################
- ## ##
- ## Copyright (c) International Business Machines Corp., 2005 ##
- ## ##
- ## This program is free software; you can redistribute it and#or modify ##
- ## it under the terms of the GNU General Public License as published by ##
- ## the Free Software Foundation; either version 2 of the License, or ##
- ## (at your option) any later version. ##
- ## ##
- ## This program is distributed in the hope that it will be useful, but ##
- ## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
- ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
- ## for more details. ##
- ## ##
- ## You should have received a copy of the GNU General Public License ##
- ## along with this program; if not, write to the Free Software ##
- ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ##
- ## ##
- ## ##
- ################################################################################
- #
- # File:
- # get_ifname
- #
- # Description:
- # Get the interface name which belongs to the specified test link
- #
- # Author:
- # Mitsuru Chinen <mitch@jp.ibm.com>
- #
- # Arguments:
- # $1: Set the host type to set the IPv4 address
- # lhost - local host / rhost - remote host
- # $2: The number of the test link
- #
- # History:
- # Oct 19 2005 - Created (Mitsuru Chinen)
- #
- #-----------------------------------------------------------------------
- #Uncomment line below for debug output.
- #trace_logic=${trace_logic:-"set -x"}
- $trace_logic
- # Make sure the value of LTPROOT
- LTPROOT=${LTPROOT:-`(cd ../../ ; pwd)`}
- TMPDIR=${TMPDIR:-/tmp}
- export LTPROOT TMPDIR
- # Check the environment variable for the test
- . check_envval || exit 1
- # Arguments
- if [ $# -ne 2 ]; then
- echo "Usage: $0 host_type link_num" >&2
- exit 1
- fi
- host_type=$1
- link_num=$2
- # Check the host type
- case $host_type in
- lhost)
- hwaddrs="$LHOST_HWADDRS"
- ;;
- rhost)
- hwaddrs="$RHOST_HWADDRS"
- ;;
- *)
- echo "$0: 1st argument must be lhost or rhost" >&2
- exit 1
- ;;
- esac
- # Pick HWaddr from HWaddr list
- field=`expr $link_num + 1`
- hwaddr=`echo $hwaddrs | cut -d ' ' -f $field`
- if [ x${hwaddr} = x ]; then
- echo "HWaddr list ($hwaddrs) is something wrong." >&2
- exit 1
- fi
- ip_link_show_out=`mktemp $TMPDIR/tmp.XXXXXXXX`
- if [ $host_type = lhost ]; then
- ip link show > $ip_link_show_out 2>&1
- else
- $LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH ip link show' \
- > $ip_link_show_out 2>&1
- fi
- ifname=`grep -1 -i $hwaddr $ip_link_show_out | head -n 1 | awk '{ print $2 }' | sed "s/://"` 2>/dev/null
- rm -f $ip_link_show_out
- # Detect a interface name from the HWaddr
- if [ x$ifname = x ]; then
- echo "Interface which has $hwaddr is not found." >&2
- exit 1
- fi
- echo $ifname
- exit 0
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