wlan-ng

对于无线网卡采用prism芯片的linux的开源驱动.

#! /bin/sh
#
# etc/pcmcia/wlan-ng
#
# Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
# --------------------------------------------------------------------
#
# linux-wlan
#
#   The contents of this file are subject to the Mozilla Public
#   License Version 1.1 (the "License"); you may not use this file
#   except in compliance with the License. You may obtain a copy of
#   the License at http://www.mozilla.org/MPL/
#
#   Software distributed under the License is distributed on an "AS
#   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
#   implied. See the License for the specific language governing
#   rights and limitations under the License.
#
#   Alternatively, the contents of this file may be used under the
#   terms of the GNU Public License version 2 (the "GPL"), in which
#   case the provisions of the GPL are applicable instead of the
#   above.  If you wish to allow the use of your version of this file
#   only under the terms of the GPL and not to allow others to use
#   your version of this file under the MPL, indicate your decision
#   by deleting the provisions above and replace them with the notice
#   and other provisions required by the GPL.  If you do not delete
#   the provisions above, a recipient may use your version of this
#   file under either the MPL or the GPL.
#
# --------------------------------------------------------------------
#
# Inquiries regarding the linux-wlan Open Source project can be
# made directly to:
#
# AbsoluteValue Systems Inc.
# [e-mail]
# http://www.linux-wlan.com
#
# --------------------------------------------------------------------
#
# Portions of the development of this software were funded by 
# Intersil Corporation as part of PRISM(R) chipset product development.
#
# --------------------------------------------------------------------


# [MSM]: Moved here because wlan/shared may is intended to be used by 
#  other scripts
wlan_usage ()
{
    echo "usage: wlan-ng [action] [device name] [debug]"
    echo "  actions: start|resume, stop|suspend, check|cksum|restart"
    echo "  debug  : enables shell debug"
    exit 1
}

if [ "$3" = "debug" ]; then set -x ; fi

# Note: this 'shared' comes with the WLAN package
if [ ! -f /etc/wlan/shared ] ; then
    echo "/etc/wlan/shared not present"
    exit 0
fi

. /etc/wlan/shared

# [MSM]: This test supplied by rlazarev, it's commented out due to pcmcia
#   stab file movement.  This test needs to be 'functionized' and made a
#   little more robust.
#if [ ! -f /var/run/stab ] ; then
#	echo "Error: Possibly PCMCIA CS is not started";
#	wlan_usage;
#	exit 1;
#fi

# If number of args is less than 2 display usage
if [ $# -lt 2 ]; then wlan_usage ; fi

# Note: this 'shared' comes with the PCMCIA package
# ACTION=$1 and DEVICE=$2 are assigned in pcmcia/shared
if [ -f /etc/pcmcia/shared ] ; then . /etc/pcmcia/shared ; fi

# XXXX we can do stuff with $SCHEME still..?
case "$ACTION" in

'start'|'resume')
	#=======ENABLE========================================
	# Do we want to init the card at all?
	eval 'WLAN_ENABLE=$ENABLE_'$DEVICE

	if ! is_true $WLAN_ENABLE ; then
		exit 0
	fi

	if is_true $WLAN_DOWNLOAD; then
	    wlan_download $DEVICE
        fi

	wlan_enable $DEVICE

	#=======MAC STARTUP=========================================
	wlan_supports_scan $DEVICE
	if [ $? = 0 ] ; then
	    wlan_scan $DEVICE 
	    if [ $? = 0 ] ; then
		wlan_source_config_for_ssid "$ssid" "$bssid"

		wlan_user_mibs $DEVICE
		wlan_wep $DEVICE

		grep 'autojoin' /proc/net/p80211/$DEVICE/wlandev > /dev/null
		if [ $? = 0 ]; then
		    wlan_infra $DEVICE
		else
		    wlan_dot11_join $DEVICE
		fi
	    else
		echo "network not found.  maybe start IBSS?"
	    fi
	else
	    wlan_source_config $DEVICE

	    wlan_user_mibs $DEVICE
	    wlan_wep $DEVICE

	    if is_true $IS_ADHOC ; then	
		wlan_adhoc $DEVICE
	    else
		wlan_infra $DEVICE
	    fi
	fi

	# ==========PCMCIA NETDEVICE=============================
	# Append the SSID to the pcmcia scheme name
	wlan_set_ssid_schemefile "$WLAN_SCHEMESSID"

	# Call the normal network initialization
	./network $1 $2
	if [ $? = 1 ] ; then
#		echo "/etc/pcmcia/network $1 $2 failed."
		wlan_restore_schemefile
		exit 1
	fi
	
	# Restore scheme file to it's prior contents
	wlan_restore_schemefile
	;;

'stop'|'suspend')

	# ==========PCMCIA NETDEVICE=============================
	# Append the SSID to the pcmcia scheme name
	wlan_set_ssid_schemefile "$DesiredSSID"

	# Call the normal network initialization
	./network $1 $2
	if [ $? = 1 ] ; then
#		echo "/etc/pcmcia/network $1 $2 failed."
		wlan_restore_schemefile
		exit 1
	fi
	
	#=======DISABLE IFSTATE=============================
	# Take the device down to a quiescent state.
	wlan_disable $DEVICE

	# Restore scheme file to it's prior contents
	wlan_restore_schemefile
	;;

'check'|'cksum'|'restart')
	# ==========STA ====================================
	# Just passes through for normal network device
	# behavior.
	if is_true $IS_ADHOC; then
		WLAN_SCHEMESSID="$SSID"
	else
		WLAN_SCHEMESSID="$DesiredSSID"
	fi

	# ==========PCMCIA NETDEVICE=============================
	# Append the SSID to the pcmcia scheme name
	wlan_set_ssid_schemefile "$WLAN_SCHEMESSID"
	
	# Call the normal network initialization
	./network $1 $2 $3:$WLAN_SCHEMESSID
	if [ $? = 1 ] ; then
#		echo "/etc/pcmcia/network $1 $2 $3 failed."
		wlan_restore_schemefile
		exit 1
	fi

	# Restore scheme file to it's prior contents
	wlan_restore_schemefile
	;;

*)
    usage
    ;;

esac

exit 0