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#!/bin/bash
#
# test-wireless-ap
#
# Usage:
# test-wireless-ap [--timeout=TIMEOUT] IFACE [AP_MAC_ADDRESS] [IWCONFIG_ARG]...
#
# This tests whether the wireless card can associate to an access
# point using the given iwconfig argument pairs
# essid ESSID
# key 123456
# and so on.
#
# Licensed under the GNU GPL. See /usr/share/common-licenses/GPL.
#
# History
# Nov 2003: Modified by Thomas Hood and Klaus Wacker
# July 2003: Modified by Thomas Hood to support Aironet cards
# June 2003: Modified by John Fettig <jfettig@uiuc.edu>
# Jan 2003: Derived from testssid by Andrew McMillan <awm@debian.org>
# Written by Thomas Hood <jdthood@yahoo.co.uk>
set -o errexit # -e
set -o noglob # -f
MYNAME="$(basename $0)"
PATH=/sbin:/bin
report_err() { echo "${MYNAME}: Error: $*" >&2 ; }
do_sleep() { LANG=C sleep "$@" ; }
is_ethernet_mac()
{
[ "$1" ] && [ ! "${1/[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]/}" ]
}
extract_ESSID()
{
while [ "$1" ] ; do
[ "$1" != "essid" ] || { ESSID="$2" ; return ; }
shift
done
}
TIMEOUT=3
case "$1" in
--timeout) TIMEOUT="$2" ; shift 2 ;;
--timeout=*) TIMEOUT="${1#--timeout=}" ; shift ;;
esac
IFACE="$1"
shift
[ "$IFACE" ] || { report_err "Interface not specified. Exiting." ; exit 1 ; }
if is_ethernet_mac "$1" ; then
MAC_ADDRESS="$1"
shift
fi
extract_ESSID "$@"
iwconfig "$IFACE" "$@"
ifconfig "$IFACE" up
for (( TIMELEFT="$TIMEOUT" ; TIMELEFT > 0 ; TIMELEFT-- )) ; do
( # Notice that we are in a subshell here so exiting takes us to the end of it
if [ "$ESSID" ] ; then
# Check to see if interface ESSID is what we are looking for
ESSID_OF_INTERFACE="$(iwgetid $IFACE)"
ESSID_OF_INTERFACE="${ESSID_OF_INTERFACE#*ESSID:}"
ESSID_OF_INTERFACE="${ESSID_OF_INTERFACE# }"
ESSID_OF_INTERFACE="${ESSID_OF_INTERFACE#\"}"
ESSID_OF_INTERFACE="${ESSID_OF_INTERFACE%\"}"
[ "$ESSID_OF_INTERFACE" = "$ESSID" ] || exit 1
fi
# Check for a valid AP MAC address
APMAC="$(iwgetid $IFACE --ap --scheme)"
[ "$APMAC" ] || exit 1
[ "$APMAC" != "FF:FF:FF:FF:FF:FF" ] || exit 1
[ "$APMAC" != "ff:ff:ff:ff:ff:ff" ] || exit 1
[ "$APMAC" != "44:44:44:44:44:44" ] || exit 1
[ "$APMAC" != "00:00:00:00:00:00" ] || exit 1
exit 0
)
if [ "$?" = 0 ] ; then
ifconfig "$IFACE" down
[ ! "$MAC_ADDRESS" ] || [ "$APMAC" = "$MAC_ADDRESS" ] || exit 1
exit 0
fi
do_sleep 1
done
ifconfig "$IFACE" down
exit 1
|
