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@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$trace_logic 45 46# Make sure the value of LTPROOT 47LTPROOT=${LTPROOT:-`(cd ../../ ; pwd)`} 48TMPDIR=${TMPDIR:-/tmp} 49export LTPROOT TMPDIR 50 51# Check the environment variable for the test 52. check_envval || exit 1 53 54# Arguments 55if [ $# -ne 2 ]; then 56 echo "Usage: $0 host_type link_num" >&2 57 exit 1 58fi 59host_type=$1 60link_num=$2 61 62# Check the host type 63case $host_type in 64 lhost) 65 hwaddrs="$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 ;; 76esac 77 78# Pick HWaddr from HWaddr list 79field=`expr $link_num + 1` 80hwaddr=`echo $hwaddrs | cut -d ' ' -f $field` 81if [ x${hwaddr} = x ]; then 82 echo "HWaddr list ($hwaddrs) is something wrong." >&2 83 exit 1 84fi 85 86ip_link_show_out=`mktemp $TMPDIR/tmp.XXXXXXXX` 87if [ $host_type = lhost ]; then 88 ip link show > $ip_link_show_out 2>&1 89else 90 $LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH ip link show' \ 91 > $ip_link_show_out 2>&1 92fi 93ifname=`grep -1 -i $hwaddr $ip_link_show_out | head -n 1 | awk '{ print $2 }' | sed "s/://"` 2>/dev/null 94rm -f $ip_link_show_out 95 96# Detect a interface name from the HWaddr 97if [ x$ifname = x ]; then 98 echo "Interface which has $hwaddr is not found." >&2 99 exit 1 100fi 101 102echo $ifname 103exit 0 104