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