Fix the wlan-ng if-pre-up script to only act on devices which we know are managed by wlan-ng.

BKrev: 4197a58fiytlALC1VH2o-d_mUeLwNw

1 files changed, 226 insertions, 0 deletions

diff --git a/wlan-ng/files/pre-up b/wlan-ng/files/pre-up
index e69de29bb2..002ab37511 100644
--- a/wlan-ng/files/pre-up
+++ b/wlan-ng/files/pre-up
@@ -0,0 +1,226 @@
+#!/bin/sh
+#
+# This script takes care of bringing up wlan-ng device.
+# It is run by ifup, and gets information from the 
+# /etc/network/interfaces file. It is derived from the
+# init.d/wlan script in the wlan-ng distribution 
+
+WLANCTL=/sbin/wlanctl-ng
+PRIV_GENERATOR=/sbin/nwepgen
+
+if [ ! -x $WLANCTL ] ; then 
+	exit 0
+fi
+
+# Detect and act only on linux-wlan-ng interfaces
+if [ -x /sbin/wlancfg ]; then
+  if ! /sbin/wlancfg show $IFACE >/dev/null 2>&1; then
+    exit 0
+  fi
+fi
+
+# Create a lock file; remove on script exit. This is a fairly crummy lock,
+# but all it needs to do is prevent hotplug from calling this script,
+# which may happen when the module is loaded below. Since it should only
+# happen when the module is loaded, I don't need a proper lock.
+if [ -e /var/lock/wlan-$IFACE.lock ]; then
+	exit 0
+fi
+touch /var/lock/wlan-$IFACE.lock
+cleanup () {
+	rm -f /var/lock/wlan-$IFACE.lock
+}
+trap cleanup 0
+
+if [ -z "$IF_WIRELESS_MODE" ]; then
+	IF_WIRELESS_MODE="ad_hoc"
+fi
+
+if [ -z "$IF_WLAN_NG_HOSTWEP" ]; then
+	IF_WLAN_NG_HOSTWEP=false
+fi
+
+if [ -z "$IF_WLAN_NG_DEFAULT_KEY_ID" ]; then
+	IF_WLAN_NG_DEFAULT_KEY_ID=0
+fi
+
+if [ -z "$IF_WLAN_NG_EXCLUDE_UNENCRYPTED" ]; then
+	IF_WLAN_NG_EXCLUDE_UNENCRYPTED=true
+fi
+
+if [ -z "$IF_WLAN_NG_PRIV_KEY128" ]; then
+	IF_WLAN_NG_PRIV_KEY128=false
+fi
+
+if [ -z "$IF_WLAN_NG_BCINT" ]; then
+	IF_WLAN_NG_BCINT=100
+fi
+
+if [ -z "$IF_WLAN_NG_BASICRATES" ]; then
+	IF_WLAN_NG_BASICRATES="2 4"
+fi
+
+if [ -z "$IF_WLAN_NG_OPRATES" ]; then
+	IF_WLAN_NG_OPRATES="2 4 11 22"
+fi
+
+if [ -z "$IF_WLAN_NG_AUTHTYPE" ]; then
+	IF_WLAN_NG_AUTHTYPE="opensystem"
+fi
+
+if [ -z "$IF_WIRELESS_CHANNEL" ]; then
+	IF_WIRELESS_CHANNEL=1
+fi
+
+if ! modprobe p80211; then
+	echo "Failed to load p80211.o." >&2
+	exit 1
+fi
+
+# NOTE: We don't explicitly insmod the card driver here.  The
+#  best thing to do is to specify an alias in /etc/modules.conf.
+#  Then, the first time we call wlanctl with the named device,
+#  the kernel module autoload stuff will take over.
+#  But, if you prefer, you could modprobe it here.
+
+
+# Bring the card up into an operable state.
+result=`$WLANCTL $IFACE lnxreq_ifstate ifstate=enable`
+if [ $? = 0 ] ; then
+	eval $result
+	if [ $resultcode != "success" ]; then
+		echo "Failed to enable the device, resultcode=" $resultcode "." >&2
+		exit 1
+	fi
+else
+	echo "Failed to enable the device, exitcode=" $? "." >&2
+	exit 1
+fi
+
+# Set user-specified MIB items.
+for i in $IF_WLAN_NG_USER_MIBS; do
+	result=`$WLANCTL $IFACE dot11req_mibset "mibattribute=$i"`
+
+	if [ $? = 0 ] ; then
+		eval $result
+		if [ $resultcode != "success" ] ; then
+			echo "Failed to set user MIB $i." >&2
+			exit 1
+		fi
+	else
+		echo "Failed to set user MIB $i." >&2
+		exit 1
+	fi
+done
+
+if [ "$IF_WIRELESS_ENC" = "on" ]; then
+	# Set up WEP.
+	result=`$WLANCTL $IFACE dot11req_mibget mibattribute=dot11PrivacyOptionImplemented`
+	if [ $? = 0 ] ; then
+		eval $result
+		eval $mibattribute
+	else
+		echo "mibget failed." >&2
+		exit 1
+	fi
+	
+	if [ "$dot11PrivacyOptionImplemented" != "true" ]; then
+		echo "Cannot enable privacy, dot11PrivacyOptionImplemented=$dot11PrivacyOptionImplemented." >&2
+		exit 1
+	fi
+
+	$WLANCTL $IFACE lnxreq_hostwep decrypt=$IF_WLAN_NG_HOSTWEP encrypt=$IF_WLAN_NG_HOSTWEP >/dev/null
+	
+	$WLANCTL $IFACE dot11req_mibset \
+		mibattribute=dot11WEPDefaultKeyID=$IF_WLAN_NG_DEFAULT_KEY_ID \
+             >/dev/null
+	
+	$WLANCTL $IFACE dot11req_mibset \
+		mibattribute=dot11ExcludeUnencrypted=$IF_WLAN_NG_EXCLUDE_UNENCRYPTED \
+            >/dev/null
+
+	$WLANCTL $IFACE dot11req_mibset \
+		mibattribute=dot11PrivacyInvoked=true >/dev/null
+
+	if [ -e "$IF_WLAN_NG_KEYFILE" ]; then
+		IF_WLAN_NG_PRIV_GENSTR=`cat $IF_WLAN_NG_KEYFILE`
+	fi
+	if [ ! -z "$IF_WLAN_NG_PRIV_GENSTR" ]; then
+		if [ "$IF_WLAN_NG_PRIV_KEY128" = "false" ]; then
+			keys=`$PRIV_GENERATOR "$IF_WLAN_NG_PRIV_GENSTR" 5`
+		else
+			keys=`$PRIV_GENERATOR "$IF_WLAN_NG_PRIV_GENSTR" 13`
+		fi
+
+		knum=0
+		for i in $keys; do
+			$WLANCTL $IFACE dot11req_mibset \
+				mibattribute=dot11WEPDefaultKey$knum=$i \
+                             >/dev/null
+			knum=$(expr $knum + 1)
+		done
+	else
+		$WLANCTL $IFACE dot11req_mibset \
+			mibattribute=dot11WEPDefaultKey0=$IF_WLAN_NG_KEY0 \
+		     >/dev/null
+		$WLANCTL $IFACE dot11req_mibset \
+			mibattribute=dot11WEPDefaultKey1=$IF_WLAN_NG_KEY1 \
+		     >/dev/null
+		$WLANCTL $IFACE dot11req_mibset \
+			mibattribute=dot11WEPDefaultKey2=$IF_WLAN_NG_KEY2 \
+		     >/dev/null
+		$WLANCTL $IFACE dot11req_mibset \
+			mibattribute=dot11WEPDefaultKey3=$IF_WLAN_NG_KEY3 \
+		     >/dev/null
+	fi
+fi
+	
+# MAC startup
+if [ "$IF_WIRELESS_MODE" = "ad_hoc" ] || 
+   [ "$IF_WIRELESS_MODE" = "ad-hoc" ]; then
+	startcmd="$WLANCTL $IFACE dot11req_start "
+	startcmd="$startcmd ssid=$IF_WIRELESS_ESSID"
+	startcmd="$startcmd bsstype=independent"
+	startcmd="$startcmd beaconperiod=$IF_WLAN_NG_BCINT"
+	startcmd="$startcmd dtimperiod=3"
+	startcmd="$startcmd cfpollable=false"
+	startcmd="$startcmd cfpollreq=false"
+	startcmd="$startcmd cfpperiod=3"
+	startcmd="$startcmd cfpmaxduration=100"
+	startcmd="$startcmd probedelay=100"
+	startcmd="$startcmd dschannel=$IF_WIRELESS_CHANNEL"
+	j=1
+	for i in $IF_WLAN_NG_BASICRATES; do
+		startcmd="$startcmd basicrate$j=$i"
+		j=$(expr $j + 1)
+	done
+	j=1
+	for i in $IF_WLAN_NG_OPRATES; do
+		startcmd="$startcmd operationalrate$j=$i"
+		j=$(expr $j + 1)
+	done
+
+	results=`$startcmd`
+	if [ $? = 0 ]; then 
+		eval $results
+		if [ $resultcode != "success" ] ; then
+			echo "IBSS not started, resultcode=$resultcode" >&2
+			exit 1
+		fi
+	else
+		echo FAILED: $startcmd >&2
+		exit 1
+	fi
+else
+	# Infrastructure mode.
+	results=`$WLANCTL $IFACE lnxreq_autojoin \
+		"ssid=$IF_WIRELESS_ESSID" \
+		authtype=$IF_WLAN_NG_AUTHTYPE | sed 's/\([^=]*\)=\(.*\)/\1="\2"/'`
+	if [ $? = 0 ]; then
+		eval $results
+		if [ ${resultcode:-"failure"} != "success" ]; then
+			echo 'error: Autojoin indicated failure!' >&2
+			exit 1
+		fi
+	fi
+fi