WiFi script

• nainstalovat wpa_supplicant
• vygenerovat klíč
  

  wpa_passphrase your_ssid your_psk

• výsledek uložit do souboru /etc/wpa_supplicant.confa přidat další parametry např.

  network={
          ssid="okrnet54g"
          proto=WPA RSN
          key_mgmt=WPA-PSK
          pairwise=CCMP TKIP
          group=CCMP TKIP
          #psk="12345678"
          psk=34a9328fba7ba98ac310366c5240bec54c4bd4e349cb8a8b8fc79b08bcd27be1
  }

• upravit /etc/network/interface

  auto wlan1
  iface wlan1 inet static
      address     10.26.71.8
      netmask     255.255.255.240
      wireless-mode       managed
      wireless-essid      okrnet54g
      wireless-nickname   server
      pre-up wpa_supplicant -B -Dwext -iwlan1 -c/etc/wpa_supplicant.conf
      post-down killall -q wpa_supplicant

#!/bin/sh
if [ -z $1 ] ; then
  echo "Usage: rc.wireless <interface>"
  return 1 2> /dev/null || exit 1
fi
 
INTERFACE=$1
LOGGER=${LOGGER:-cat}
SLEEP=2
 
# Find the path where wireless tools are installed
for IWPATH in /usr/{bin,sbin} /usr/local/{bin,sbin} /sbin ; do
    if [ -x $IWPATH/iwconfig ] ; then break ; fi
done
 
# Set all desired settings via iwconfig
IWCOMMAND="$IWPATH/iwconfig ${INTERFACE}"
IWPCOMMAND="$IWPATH/iwpriv ${INTERFACE}"
IFCOMMAND="/sbin/ifconfig ${INTERFACE}"
 
is_wireless_device ()
{
    [ -x $IWPATH/iwconfig ] || return 1
    LC_ALL=C $IWPATH/iwconfig $1 2>&1 | \
        grep -q "no wireless extensions" || return 0
    return 1
}
 
# Is the device wireless?  If not, exit this script.
is_wireless_device ${INTERFACE} || return 0 2> /dev/null || exit 0
 
# Get the MAC address for the interface
HWADDR=`/sbin/ifconfig ${INTERFACE} | sed -ne 's/.*\(..:..:..:..:..:..\).*/\1/p'`
 
# Read the configuration information for the card with address $HWADDR from /etc/rc.d/rc.wireless.conf:
. /etc/rc.d/rc.wireless.conf
 
[ -n "$VERBOSE" -a -n "$INFO" ] && echo "$1 is '$INFO'"
 
if [ -n "$IP" ] ; then
	echo "$IFCOMMAND $IP netmask $MASK up" | $LOGGER
	$IFCOMMAND down
	$IFCOMMAND $IP netmask $MASK
fi
if [ -n "$DEFGW" ] ; then
	echo "route add default gw $DEFGW" | $LOGGER
	route del default > /dev/null 2> /dev/null
	route add default gw $DEFGW
	sleep $SLEEP
fi
if [ -n "$MODE" ] ; then
	echo "$IWCOMMAND mode $MODE" | $LOGGER
	$IWCOMMAND mode $MODE
	sleep $SLEEP
fi
if [ -n "$NICK" ] ; then
	echo "$IWCOMMAND nick $NICK" | $LOGGER
	$IWCOMMAND nick $NICK
fi
if [ -n "$NWID" ] ; then
	echo "$IWCOMMAND nwid $NWID" | $LOGGER
	$IWCOMMAND nwid $NWID
fi
if [ -n "$FREQ" ] ; then
	echo "$IWCOMMAND freq $FREQ" | $LOGGER
	$IWCOMMAND freq $FREQ
	sleep $SLEEP
elif [ -n "$CHANNEL" ] ; then
	echo "$IWCOMMAND channel $CHANNEL" | $LOGGER
	$IWCOMMAND channel $CHANNEL
	sleep $SLEEP
fi
if [ -n "$SENS" ] ; then
	echo "$IWCOMMAND sens $SENS" | $LOGGER
	$IWCOMMAND sens $SENS
	sleep $SLEEP
fi
if [ -n "$RATE" ] ; then
	echo "$IWCOMMAND rate $RATE" | $LOGGER
	$IWCOMMAND rate $RATE
fi
if [ -n "$RTS" ] ; then
	echo "$IWCOMMAND rts $RTS" | $LOGGER
	$IWCOMMAND rts $RTS
	sleep $SLEEP
fi
if [ -n "$FRAG" ] ; then
	echo "$IWCOMMAND frag $FRAG" | $LOGGER
	$IWCOMMAND frag $FRAG
	sleep $SLEEP
fi
if [ -n "$RETRY" ] ; then
	echo "$IWCOMMAND retry $RETRY" | $LOGGER
	$IWCOMMAND retry $RETRY
	sleep $SLEEP
fi
if [ -n "$TXPOWER" ] ; then
	for id in $TXPOWER; do
		a=`echo $TXPOWER | cut -d "|" -f 1`
		b=`echo $TXPOWER | cut -d "|" -f 2`		
		echo "$IWCOMMAND txpower $a $b" | $LOGGER
		$IWCOMMAND txpower $a $b
		sleep $SLEEP
	done
fi
if [ -n "$WRITEMIF" ] ; then
	for id in $WRITEMIF; do
		a=`echo $WRITEMIF | cut -d "|" -f 1`
		b=`echo $WRITEMIF | cut -d "|" -f 2`		
		echo "$IWCOMMAND writemif $a $b" | $LOGGER
		$IWPCOMMAND writemif $a $b
		sleep $SLEEP
	done
fi
if [ -n "$KEYS" ] ; then
	x=0
	for id in $KEYS; do
		x=$(($x+1))
		echo "$IWCOMMAND key $id [$x]" | $LOGGER
		$IWCOMMAND key $id [$x]
	done
fi
if [ -n "$KEY" ] ; then
	echo "$IWCOMMAND key $KEY" | $LOGGER
	$IWCOMMAND key $KEY
fi
if [ -n "$MACCTRL" ] ; then
	for id in $MACCTRL; do
		if [ -n "`echo $id | grep ':'`" ]; then
			echo "$IWPCOMMAND addmac $id" | $LOGGER
			$IWPCOMMAND addmac $id
		else
			echo "$IWPCOMMAND maccmd $id" | $LOGGER
			$IWPCOMMAND maccmd $id
		fi
	done
fi
# ESSID jako poslední
if [ -n "$ESSID" ] ; then
	echo "$IWCOMMAND essid $ESSID" | $LOGGER
	$IWCOMMAND essid $ESSID
fi
 
if [ -n "$IP" ] ; then
	echo "$IFCOMMAND up" | $LOGGER
	$IFCOMMAND up
fi

VERBOSE=1
SLEEP=2
case "$HWADDR" in
 
# WLAN0
xx:xx:xx:xx:*)
	IP="x.x.x.x"
	MASK="255.255.255.0"
	## Replace default gateway or empty
	DEFGW="x.x.x.x"
	MODE="managed"
	ESSID="net"
	RATE=auto
#	SENS=1
#	TXPOWER="0|fixed"
#	WRITEMIF="62|225"
	KEYS="s:1234567890123 s:3210987654321"
	KEY="off"
#	RTS="off"
#	FRAG="off"
	INFO="Karta do Internetu WLAN0"
#	RETRY=20
	NICK="wlan0"
	MACCTRL="0 3 11:22:33:44:55:66 11:22:33:44:55:77 0"
;;
esac