testcases/network/stress/ns-tools/check_icmpv6_connectivity

#!/bin/sh

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## Copyright (c) International Business Machines  Corp., 2005                 ##
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#
# File:
#   check_icmpv6_connectivity
#
# Description:
#   Functions for the network stress tests 
#   Check the ICMPv6 connectivity from a interface to a IPv6 address
#
# Arguments:
#   $1: source interface name
#   $2: destination IPv6 address
#   
# Returns:
#   0: connectivity is good.
#   1: connectivity is something wrong.
#
# Author:
#   Mitsuru Chinen <mitch@jp.ibm.com>
#
# History:
#   Oct 19 2005 - Created (Mitsuru Chinen) 
#
#-----------------------------------------------------------------------
#Uncomment line below for debug output.
#trace_logic=${trace_logic:-"set -x"}
$trace_logic

# The max number of ICMP echo request
PING_MAX=10

# Check the arguments
if [ $# -ne 2 ]; then
    echo "Usage: $0 source_interface_name destionation_ipv6_address" >&2
    exit 1
fi
src_ifname=$1
dst_ipv6addr=$2

cnt=0
while [ $cnt -lt $PING_MAX ]; do
    cnt=`expr $cnt + 1`
    ping6 -I $src_ifname -c 1 $dst_ipv6addr -w 1 >/dev/null 2>&1
    if [ $? -eq 0 ]; then
	exit 0
    fi
    sleep 1
done

exit 1