#!/bin/sh
DEBUG="0"
VERBOSE="0"
ELITE="0"
USERID=""
IFACE=""
MAC80211=0
IW_SOURCE="https://www.kernel.org/pub/software/network/iw/iw-3.11.tar.bz2"
IW_ERROR=""
UDEV_ISSUE=0
SYSFS=0
if [ -d /sys/ ]
then
	SYSFS=1
fi

if [ "${1}" = "--elite" ]
then
	shift
	ELITE="1"
fi

if [ "${1}" = "--verbose" ]
then
	shift
	VERBOSE="1"
fi

if [ "${1}" = "--debug" ]
then
	shift
	DEBUG="1"
	VERBOSE="1"
fi

#yes, I know this is in here twice
if [ "${1}" = "--elite" ]
then
	shift
	ELITE="1"
fi


CH=${3}; [ x${3} = "x" ] && CH=10

#TODO LIST

#cleanup getDriver()
#fix to not assume wifi drivers are modules

if [ x"$(command -v id 2> /dev/null)" != "x" ]
then
	USERID="$(id -u 2> /dev/null)"
fi

if [ x${USERID} = "x" -a x${UID} != "x" ]
then
	USERID=${UID}
fi

if [ x${USERID} != "x" -a x${USERID} != "x0" ]
then
	printf "Run it as root\n" ; exit 1;
fi

#check for all needed binaries
if [ ! -x "$(command -v uname 2>&1)" ]
then
	printf "How in the world do you not have uname installed?\n"
	printf "Please select a linux distro which has at least basic functionality (or install uname).\n"
	exit 1
#else
#	#write something in here to test uname for Darwin/Linux and set a variable
fi

if [ ! -x "$(command -v ip 2>&1)" ] && [ ! -x "$(command -v ifconfig 2>&1)" ]
then
	printf "You have neither ip (iproute2) nor ifconfig installed.\n"
	printf "Please install one of them from your distro's package manager.\n"
	exit 1
fi

if [ ! -x "$(command -v iw 2>&1)" ]
then
	printf "You don't have iw installed, please install it from your distro's package manager.\n"
	printf "If your distro doesn't have a recent version you can download it from this link:\n"
	printf "${IW_SOURCE}\n"
	exit 1
fi

if [ ! -x "$(command -v ethtool 2>&1)" ]
then
	printf "Please install the ethtool package for your distro.\n"
	exit 1
fi

if [ ! -x "$(command -v lsusb 2>&1)" ]
then
	printf "Please install lsusb from your distro's package manager.\n"
	exit 1
fi

if [ -d /proc/bus/pci ]
then
	if [ ! -x "$(command -v lspci 2>&1)" ]
	then
		printf "Please install lspci from your distro's package manager.\n"
		exit 1
	else
		LSPCI=1
	fi
else
	LSPCI=0
fi

if [ -f /proc/modules ]
then
	if [ ! -x "$(command -v modprobe 2>&1)" ]
	then
		printf "Your kernel has module support but you don't have modprobe installed.\n"
		printf "It is highly recommended to install modprobe (typically from kmod).\n"
		MODPROBE=0
	else
		MODPROBE=1
	fi
	if [ ! -x "$(command -v modinfo 2>&1)" ]
	then
		printf "Your kernel has module support but you don't have modinfo installed.\n"
		printf "It is highly recommended to install modinfo (typically from kmod).\n"
		printf "Warning: driver detection without modinfo may yield inaccurate results.\n"
		MODINFO=0
	else
		MODINFO=1
	fi
fi

if [ ! -x "$(command -v awk 2>&1)" ]
then
	printf "How in the world do you not have awk installed?\n"
	printf "Please select a linux distro which has at least basic functionality (or install awk).\n"
	exit 1
fi

if [ ! -x "$(command -v grep 2>&1)" ]
then
	printf "How in the world do you not have grep installed?\n"
	printf "Please select a linux distro which has at least basic functionality (or install grep).\n"
	exit 1
fi
#done checking for binaries

usage() {
	printf "usage: $(basename $0) <start|stop|check> <interface> [channel or frequency]\n\n"
	exit
}

setLink() {
	if [ -x "$(command -v ip 2>&1)" ]
	then
		ip link set dev ${1} ${2} || printf "Failed to set ${1} ${2} using ip"
	elif [ -x "$(command -v ifconfig 2>&1)" ]
	then
		ifconfig ${1} ${2} || printf "Failed to set ${1} ${2} using ifconfig"
	fi
	return
}

ifaceIsUp() {
	if [ -x "$(command -v ip 2>&1)" ]
	then
		ifaceIsUpCmd="ip link show dev"
	elif [ -x "$(command -v ifconfig 2>&1)" ]
	then
		ifaceIsUpCmd="ifconfig"
	fi
	if ${ifaceIsUpCmd} ${1} | grep -q UP
	then
		return
	else
		return 1
	fi
}

listIfaceUnspec() {
	if [ -x "$(command -v ip 2>&1)" ]
	then
		ip link 2>/dev/null | awk -F"[: ]+" '/UNSPEC/ {print $2}'
	elif [ -x "$(command -v ifconfig 2>&1)" ]
	then
		ifconfig -a 2>/dev/null | awk -F"[: ]+" '/UNSPEC/ {print $1}'
	fi
}

startDeprecatedIface() {
	iwconfig ${1} mode monitor > /dev/null 2>&1
	if [ ! -z ${2} ]
	then
		if [ ${2} -lt 1000 ]
		then
			iwconfig ${1} channel ${2} > /dev/null 2>&1
		else
			iwconfig ${1} freq ${2}000000 > /dev/null 2>&1
		fi
	else
		iwconfig ${1} channel ${CH} > /dev/null 2>&1
	fi
	iwconfig ${1} key off > /dev/null 2>&1
	setLink ${1} up
	printf " (monitor mode enabled)"
}

startMac80211Iface() {
	#check if $1 already has a mon interface on the same phy and bail if it does
	if [ -d /sys/class/ieee80211/${PHYDEV}/device/net ]
	then
		for i in $(ls /sys/class/ieee80211/${PHYDEV}/device/net/)
		do
			if [ "$(cat /sys/class/ieee80211/${PHYDEV}/device/net/${i}/type)" = "803" ]
			then
				setChannelMac80211 ${1}
				printf "\n\t\t(mac80211 monitor mode already enabled for [${PHYDEV}]${1} on [${PHYDEV}]${i})\n"
				exit
			fi
		done
	fi
	#we didn't bail means we need a monitor interface
	if [ -e /sys/class/net/${1}mon ]
	then
		printf "\nYou already have a ${1}mon device but it is NOT in monitor mode."
		printf "\nWhatever you did, don't do it again."
		printf "\nPlease run \"iw ${1}mon del\" before attempting to continue\n"
		exit 1
	fi
	#we didn't bail means our target interface is available
	setLink ${1} down
	IW_ERROR=$(iw phy ${PHYDEV} interface add ${1}mon type monitor 2>&1 | grep "nl80211 not found")
	if [ x${IW_ERROR} = "x" ]
	then
		sleep 1s
		setChannelMac80211 ${1}mon
		printf "\n\t\t(mac80211 monitor mode vif enabled for [${PHYDEV}]${1} on [${PHYDEV}]${1}mon)\n"
	else
		printf "\n\nERROR: something went wrong with iw."
	fi
	if [ ${ELITE} = "1" ]
	then
		#check if $1 is still down, warn if not
		if ifaceIsUp ${1}
		then
			printf "\nInterface ${1} is up, but it should be down. Something is interferring."
			printf "\nPlease run \"airmon-zc check kill\" and/or kill your network manager."
		fi
	else
		iw ${1} del
		printf "\t\t(mac80211 station mode vif disabled for [${PHYDEV}]${1})\n"
	fi
}

startDarwinIface() {
	if [ -x /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport ]
	then
		/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport $1 sniff
	fi
}

setChannelMac80211() {
	setLink ${1} up
	if [ ! -z ${3} ]
	then
		if [ ${3} -lt 1000 ]
		then
			iw dev ${1} set channel ${3}
		else
			iw dev ${1} set freq "${3}"
		fi
	else
		iw dev ${1} set channel ${CH}
	fi
}

stopDeprecatedIface() {
	setLink $1 down
	iwconfig $1 mode Managed > /dev/null 2>&1
	setLink $1 up
	printf " (monitor mode disabled)"
}

stopMac80211Iface() {
	if [ -f /sys/class/net/${1}/type ]
	then
		if [ "$(cat /sys/class/net/${1}/type)" != "803" ]
		then
			printf "\n\nYou are trying to stop a device that isn't in monitor mode.\n"
			printf "Doing so is a terrible idea, if you really want to do it then you\n"
			printf "need to type 'iw ${1} del' yourself since it is a terrible idea.\n"
			printf "Most likely you want to remove an interface called wlan[0-9]mon\n"
			printf "If you feel you have reached this warning in error,\n"
			printf "please report it."
			exit 1
		else
			if [ "${ELITE}" = "0" ]
			then
				#check if $1 already has a sta interface on the same phy and bail if it does
				if [ -d /sys/class/ieee80211/${PHYDEV}/device/net ]
				then
					for i in $(ls /sys/class/ieee80211/${PHYDEV}/device/net/)
					do
						if [ "$(cat /sys/class/ieee80211/${PHYDEV}/device/net/${i}/type)" = "1" ]
						then
							printf "\n\t\t(mac80211 station mode vif already available for [${PHYDEV}]${1} on [${PHYDEV}]${i})\n"
							exit
						fi
					done
				fi
				if [ -e /sys/class/net/${1%mon} ]
				then
					printf "\nYou already have a ${1%mon} device but it is NOT in station mode."
					printf "\nWhatever you did, don't do it again."
					printf "\nPlease run \"iw ${1%mon} del\" before attempting to continue\n"
					exit 1
				fi
				IW_ERROR=$(iw phy ${PHYDEV} interface add ${1%mon} type station 2>&1)
				if [ x${IW_ERROR} = "x" ]
				then
					printf "\n\t\t(mac80211 station mode vif enabled on [${PHYDEV}]${1%mon})"
					unset IW_ERROR
				else
					printf "\n\n ERROR: iw command error"
				fi
			fi
			IW_ERROR=$(iw dev "${1}" del 2>&1 | grep "nl80211 not found")
			if [ x$IW_ERROR = "x" ]
			then
				printf "\n\t\t(mac80211 monitor mode vif disabled for [${PHYDEV}]${1})"
			else
				if [ -f /sys/class/ieee80211/"${PHYDEV}"/remove_iface ]
				then
					printf "${1}" > /sys/class/ieee80211/"${PHYDEV}"/remove_iface
					printf "\n\t\t(mac80211 monitor mode vif disabled for [${PHYDEV}]${1})"
				else
					printf "\n\nERROR: Neither the sysfs interface links nor the iw command is available.\nPlease download and install iw from\n$IW_SOURCE\n"
				fi
			fi
		fi
	fi
}

getDriver() {
	#standard detection path, this is all that is needed for proper drivers
	#DRIVER=$(printf "$ethtool_output" | awk '/driver/ {print $2}')

	#if $(modinfo -n ${DRIVER} > /dev/null 2>&1)
	#then
	#	true
	#else
	#	unset DRIVER
	#fi

	#if [ "$DRIVER" = "" ]
	#then
		if [ -f /sys/class/net/$1/device/uevent ]
		then
			DRIVER="$(awk -F'=' '$1 == "DRIVER" {print $2}' /sys/class/net/$1/device/uevent)"
		else
			#DRIVER we put SOMETHING in DRIVER here if we are unable to find anything real
			DRIVER="??????"
		fi
	#fi

	#here we test for driver usb, ath9k_htc,rt2870, possibly others show this
	if [ "$DRIVER" = "usb" ]
	then
		echo "Warn ON: USB"
		BUSADDR="$(printf "$ethtool_output" | awk '/bus-info/ {print $2}'):1.0"

		if [ "$DEBUG" = "1" ]
		then
			printf "${BUSADDR}\n"

		fi

		if [ "$BUSADDR" != "" ]
		then
			if [ -f /sys/class/net/$1/device/$BUSADDR/uevent ]
			then
				DRIVER="$(awk -F'=' '$1 == "DRIVER" {print $2}' /sys/class/net/$1/device/$BUSADDR/uevent)"
			fi
		fi

		#here we can normalize driver names we don't like
		if [ "$DRIVER" = "rt2870" ]
		then
			DRIVER="rt2870sta"
		fi
		if [ -f /sys/class/net/$1/device/idProduct ]
		then
			if [ $(cat /sys/class/net/$1/device/idProduct) = "3070" ]
			then
				DRIVER="rt3070sta"
			fi
		fi
	fi
	if [ "$DRIVER" = "rtl8187L" ]
	then
		DRIVER="r8187l"
	fi
	if [ "$DRIVER" = "rtl8187" ] && [ "$STACK" = "ieee80211" ]
	then
		DRIVER="r8187"
	fi

	#Here we will catch the broken lying drivers not caught above
	#currently this only functions for pci devices and not usb since lsusb has no -k option
	if [ "${MODINFO}" = 1 ]
	then
		if $(modinfo -n $DRIVER  > /dev/null 2>&1)
		then
			true
		else
			if [ "${DEVICEID}" != "" ] && [ "$BUS" = "pci" ]
			then
				DRIVER="$(lspci -d $DEVICEID -k | awk '/modules/ {print $3}')"
			fi
			if [ "$DRIVER" = "" ]
			then
				DRIVER="??????"
			fi
		fi
	fi
	if [ "$DEBUG" = "1" ]
	then
		printf "getdriver() $DRIVER\n"
	fi
}

getFrom() {
	#from detection
	FROM="K"
	if [ "${MODINFO}" = 1 ] && [ -f /proc/modules ]
	then
		if [ $(modinfo -n $DRIVER 2>&1 | grep 'kernel/drivers') ]
		then
			FROM="K"
			#we add special handling here because we hate the vendor drivers AND they install in the wrong place
			if [ "$DRIVER" = "r8187" ]
			then
				FROM="V"
			elif [ "$DRIVER" = "r8187l" ]
			then
				FROM="V"
			elif [ "$DRIVER" = "rt5390sta" ]
			then
				FROM="V"
			fi
		elif [ $(modinfo -n $DRIVER 2>&1 | grep 'updates/drivers') ]
		then
			FROM="C"
		elif [ $(modinfo -n $DRIVER 2>&1 | grep misc) ]
		then
			FROM="V"
			#add a yell at the user in here
		else
			FROM="?"
		fi

		#check for staging drivers seperately
		if [ $(modinfo -n $DRIVER 2>&1 | grep staging) ]
		then
			FROM="S"
	        fi
	else
		FROM="K"
	fi
	if [ "$DEBUG" = "1" ]
	then
		printf "getFrom() $FROM\n"
	fi
}

getFirmware() {
	FIRMWARE=$(printf "$ethtool_output" | awk '/firmware-version/ {print $2}')
	#ath9k_htc firmware is a shorter version number than most so trap and make it pretty
	if [ "$DRIVER" = "ath9k_htc" ]
	then
		FIRMWARE="$FIRMWARE\t"
	fi

	if [ "$FIRMWARE" = "N/A" ]
	then
		FIRMWARE="$FIRMWARE\t"
	elif [ -z "$FIRMWARE" ]
	then
		FIRMWARE="unavailable"
	fi

	if [ "$DEBUG" = "1" ]
	then
		printf "getFirmware $FIRMWARE\n"
	fi

}

getChipset() {
	#this needs cleanup, we shouldn't have multiple lines assigning chipset per bus
	#fix this to be one line per bus
	if [ -f /sys/class/net/$1/device/modalias ]
	then
		BUS=$(cat /sys/class/net/$1/device/modalias | cut -d ":" -f 1)
		if [ "$BUS" = "usb" ]
		then
			BUSINFO=$(cat /sys/class/net/$1/device/modalias | cut -d ":" -f 2 | cut -b 1-10 | sed 's/^.//;s/p/:/')
			CHIPSET=$(lsusb | grep -i "$BUSINFO" | head -n1 - | cut -f3- -d ":" | sed 's/^....//;s/ Network Connection//g;s/ Wireless Adapter//g;s/^ //')
		#yes the below line looks insane, but broadcom appears to define all the internal buses so we have to detect them here
		elif [ "${BUS}" = "pci" -o "${BUS}" = "pcmcia" ] && [ "${LSPCI}" = "1" ]
		then
			if [ -f /sys/class/net/$1/device/vendor -a -f /sys/class/net/$1/device/device ]
			then
				DEVICEID=$(cat /sys/class/net/$1/device/vendor):$(cat /sys/class/net/$1/device/device)
				CHIPSET=$(lspci -d $DEVICEID | cut -f3- -d ":" | sed 's/Wireless LAN Controller //g;s/ Network Connection//g;s/ Wireless Adapter//;s/^ //')
			else
				BUSINFO=$(printf "$ethtool_output" | grep bus-info | cut -d ":" -f "3-" | sed 's/^ //')
				CHIPSET=$(lspci | grep "$BUSINFO" | head -n1 - | cut -f3- -d ":" | sed 's/Wireless LAN Controller //g;s/ Network Connection//g;s/ Wireless Adapter//;s/^ //')
				DEVICEID=$(lspci -nn | grep "$BUSINFO" | grep '[[0-9][0-9][0-9][0-9]:[0-9][0-9][0-9][0-9]' -o)
			fi
		elif [ "${BUS}" = "sdio" ]
		then
			if [ -f /sys/class/net/$1/device/vendor -a -f /sys/class/net/$1/device/device ]
			then
				DEVICEID=$(cat /sys/class/net/$1/device/vendor):$(cat /sys/class/net/$1/device/device)
			fi
			CHIPSET="unable to detect for sdio $DEVICEID"
		else
			CHIPSET="Not pci, usb, or sdio"
		fi
	#we don't do a check for usb here but it is obviously only going to work for usb
	elif [ -f /sys/class/net/$1/device/idVendor -a -f /sys/class/net/$1/device/idProduct ]
	then
		DEVICEID=$(cat /sys/class/net/$1/device/idVendor):$(cat /sys/class/net/$1/device/idProduct)
		CHIPSET=$(lsusb | grep -i "$DEVICEID" | head -n1 - | cut -f3- -d ":" | sed 's/^....//;s/ Network Connection//g;s/ Wireless Adapter//g;s/^ //')
	elif [ "${DRIVER}" = "mac80211_hwsim" ]
	then
		CHIPSET="Software simulator of 802.11 radio(s) for mac80211"
	elif $(printf "$ethtool_output" | awk '/bus-info/ {print $2}' | grep -q bcma)
	then
		BUS="bcma"

		if [ "${DRIVER}" = "brcmsmac" ] || [ "${DRIVER}" = "brcmfmac" ] || [ "${DRIVER}" = "b43" ]
		then
			CHIPSET="Broadcom on bcma bus, information limited"
		else
			CHIPSET="Unrecognized driver \"${DRIVER}\" on bcma bus"
		fi
	else
		CHIPSET="non-mac80211 device? (report this!)"
	fi

	if [ "$DEBUG" = "1" ]
	then
		printf "getchipset() $CHIPSET\n"
		printf "BUS = $BUS\n"
		printf "BUSINFO = $BUSINFO\n"
		printf "DEVICEID = $DEVICEID\n"
	fi
}

getStack() {
	if [ x"$1" = "x" ]
	then
		return
	fi

	if [ -d /sys/class/net/$1/phy80211/ ]
	then
		MAC80211=1
		STACK="mac80211"
	else
		MAC80211=0
		STACK="ieee80211"
	fi

	if [ -e /proc/sys/dev/$1/fftxqmin ]
	then
		MAC80211=0
		STACK="net80211"
	fi

	if [ "$DEBUG" = "1" ]
	then
		printf "getStack $STACK\n"
	fi

}

getExtendedInfo() {
	if [ "$DRIVER" = "??????" ]
	then
		EXTENDED="\t Failure detecting driver properly please report"
	fi

	#first we set all the real (useful) info we can find
	if [ -f /sys/class/net/$1/device/product ]
	then
		EXTENDED="\t$(cat /sys/class/net/$1/device/product)"
	fi

	#then we sweep for known broken drivers with no available better drivers
	if [ "$DRIVER" = "brcmsmac" ]
	then
		EXTENDED="Driver commonly referred to as brcm80211 (no injection yet)"
	fi
	if [ "$DRIVER" = "r8712u" ]
	then
		EXTENDED="\t\t\t\tNo monitor or injection support\n"
	fi

	#lastly we detect all the broken drivers which have working alturnatives
	KV=$(uname -r | awk -F'-' '{print $1}')
	KVMAJOR=$(printf ${KV} | awk -F'.' '{print $1$2}')
	KVMINOR=$(printf ${KV} | awk -F'.' '{print $3}')

	if [ $KVMAJOR -lt 26 ]
	then
		printf "You are running a kernel older than 2.6, I'm surprised it didn't error before now."
	        if [ "$DEBUG" = "1" ]
	        then
			printf ${KVMAJOR} ${KVMINOR}
		fi
		exit 1
	fi

	if [ "$DRIVER" = "rt2870sta" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "35" ]
		then
			EXTENDED="\tBlacklist rt2870sta and use rt2800usb"
		else
			EXTENDED="\tUpgrade to kernel 2.6.35 or install compat-wireless stable"
		fi
		#add in a flag for "did you tell use to do X" and emit instructions
	elif [ "$DRIVER" = "rt3070sta" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "35" ]
		then
			EXTENDED="\tBlacklist rt3070sta and use rt2800usb"
		else
			EXTENDED="\tUpgrade to kernel 2.6.35 or install compat-wireless stable"
		fi
	elif [ "$DRIVER" = "rt5390sta" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "39" ]
		then
			EXTENDED="\tBlacklist rt5390sta and use rt2800usb"
		else
			EXTENDED="\tUpgrade to kernel 2.6.39 or install compat-wireless stable"
		fi
	elif [ "$DRIVER" = "ar9170usb" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "37" ]
		then
			EXTENDED="\tBlacklist ar9170usb and use carl9170"
		else
			EXTENDED="\tUpgrade to kernel 2.6.37 or install compat-wireless stable"
		fi
	elif [ "$DRIVER" = "arusb_lnx" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "37" ]
		then
			EXTENDED="\tBlacklist arusb_lnx and use carl9170"
		else
			EXTENDED="\tUpgrade to kernel 2.6.37 or install compat-wireless stable"
		fi
	elif [ "$DRIVER" = "r8187" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "29" ]
		then
			EXTENDED="\t\tBlacklist r8187 and use rtl8187 from the kernel"
		else
			EXTENDED="\t\tUpgrade to kernel 2.6.29 or install compat-wireless stable"
		fi
	elif [ "$DRIVER" = "r8187l" ]
	then
		if [ "$KVMAJOR" = "26" ] && [ "$KVMINOR" -ge "29" ]
		then
			EXTENDED="\t\tBlacklist r8187l and use rtl8187 from the kernel"
		else
			EXTENDED="\t\tUpgrade to kernel 2.6.29 or install compat-wireless stable"
		fi
	fi
}

scanProcesses() {
	PROCESSES="wpa_action\|wpa_supplicant\|wpa_cli\|dhclient\|ifplugd\|dhcdbd\|dhcpcd\|NetworkManager\|knetworkmanager\|avahi-autoipd\|avahi-daemon\|wlassistant\|wifibox"
	PS_ERROR="invalid\|illegal"

	if [ -f "$(command -v service 2>&1)" ] && [ x"$1" = "xkill" ]
	then
		service network-manager stop 2> /dev/null > /dev/null
		service avahi-daemon stop 2> /dev/null > /dev/null
	fi

	unset match
	match=$(ps -A -o comm= | grep -c ${PROCESSES})
	if [ ${match} -gt 0 -a x"${1}" != "xkill" -a x"${1}" = "x" ]
	then
		printf "Found $match processes that could cause trouble.\n"
		printf "If airodump-ng, aireplay-ng or airtun-ng stops working after\n"
		printf "a short period of time, you may want to kill (some of) them!\n\n"
		#printf "\nPID\tName\n"
	else
		if [ x"${1}" != "xkill" -a x"${1}" = "x" ]
		then
			echo "No interfering processes found"
			return
		fi
	fi

	#if [ $match -gt 0 -a x"$1" = "xkill" ]
	#then
	#	printf "Killing processes..."
	#fi

	if [ ${match} -gt 0 ]
	then
		if [ x"${1}" = "xkill" ]
		then
			printf "Killing these processes:\n\n"
		fi
		ps -A -o pid=PID -o comm=Name | grep "${PROCESSES}\|PID"
		if [ x"${1}" = "xkill" ]
		then
			for pid in $(ps -A -o pid= -o comm= | grep ${PROCESSES} | awk '{print $1}')
			do
				#we have to use signal 9 because things like nm actually respawn wpa_supplicant too quickly
				kill -9 ${pid}
			done
		fi
	fi

	#i=1
	#while [ $i -le $match ]
	#do
	#	pid=$(ps -A -o pid= -o comm= | grep $PROCESSES | head -n $i | tail -n 1 | awk '{print $1}')
	#	pname=$(ps -A -o pid= -o comm= | grep $PROCESSES | head -n $i | tail -n 1 | awk '{print $2}')
	#	if [ x"$1" != "xkill" ]
	#	then
	#		printf "${pid}\t${pname}\n"
	#	else
	#		kill ${pid}
	#	fi
	#	i=$(($i+1))
	#done

	printf "\n"

	#this stub is for checking against the interface name, but since it almost never hits why bother?
	#if [ x"${1}" != "x" -a x"${1}" != "xkill" ]
	#then
	#	#the next line doesn't work on busybox ps because -p is unimplimented
	#	match2=$(ps -o comm= -p 1 2>&1 | grep $PS_ERROR -c)
	#	if [ ${match2} -gt 0 ]
	#	then
	#		return
	#	fi
	#
	#	for i in $(ps auxw | grep ${1} | grep -v "grep" | grep -v "airmon-zc" | awk '{print $2}')
	#	do
	#		pname=$(ps -o comm= -p ${i})
	#		printf "Process with PID ${i} ($pname) is running on interface ${1}\n"
	#	done
	#fi
}

listInterfaces() {
	unset iface_list
	for iface in $(ls -1 /sys/class/net)
	do
		if [ -f /sys/class/net/${iface}/uevent ]; then
			if $(grep -q DEVTYPE=wlan /sys/class/net/${iface}/uevent)
			then
				iface_list="${iface_list}\n ${iface}"
			fi
		fi
	done
	if [ -x "$(command -v iwconfig 2>&1)" ] && [ -x "$(command -v sort 2>&1)" ]
	then
		for iface in $(iwconfig 2> /dev/null | sed 's/^\([a-zA-Z0-9_.]*\) .*/\1/')
		do
			iface_list="${iface_list}\n ${iface}"
		done
		iface_list="$(printf "${iface_list}" | sort -bu)"
	fi
}

getPhy() {
	if [ x"$1" = "x" ]
	then
		return
	fi

	if [ $MAC80211 = "0" ]
	then
		PHYDEV="null"
		return
	fi

	if [ -d /sys/class/net/$1/phy80211/ ]
	then
		PHYDEV="$(ls -l "/sys/class/net/$1/phy80211" | sed 's/^.*\/\([a-zA-Z0-9_-]*\)$/\1/')"
	fi
}

checkvm() {
	#this entire section of code is completely stolen from Carlos Perez's work in checkvm.rb for metasploit and rewritten (poorly) in sh
	#Check dmi info
	if [ -x "$(command -v dmidecode 2>&1)" ]
	then
		dmi_info=$(dmidecode)
		if [ dmi_info ]
		then
			echo ${dmi_info} | grep -iq "microsoft corporation" 2> /dev/null && vm="MS Hyper-V"
			echo ${dmi_info} | grep -iq "vmware" 2> /dev/null && vm="VMware"
			echo ${dmi_info} | grep -iq "virtualbox" 2> /dev/null && vm="VirtualBox"
			echo ${dmi_info} | grep -iq "qemu" 2> /dev/null && vm="Qemu/KVM"
			echo ${dmi_info} | grep -iq "domu" 2> /dev/null && vm="Xen"
			vm_from="dmi_info"
		fi
	fi

	#check loaded modules
	if [ -z ${vm} ]
	then
		if [ -x "$(command -v lsmod 2>&1)" ]
		then
			lsmod_data=$(lsmod)
			if [ lsmod ]
			then
				echo ${lsmod_data} | grep -iqE "vboxsf|vboxguest" 2> /dev/null && vm="VirtualBox"
				echo ${lsmod_data} | grep -iqE "vmw_ballon|vmxnet|vmw" 2> /dev/null && vm="VMware"
				echo ${lsmod_data} | grep -iqE "xen-vbd|xen-vnif" 2> /dev/null && vm="Xen"
				echo ${lsmod_data} | grep -iqE "virtio_pci|virtio_net" 2> /dev/null && vm="Qemu/KVM"
				echo ${lsmod_data} | grep -iqE "hv_vmbus|hv_blkvsc|hv_netvsc|hv_utils|hv_storvsc" && vm="MS Hyper-V"
				vm_from="lsmod"
			fi
		fi
	fi

	#check scsi driver
	if [ -z ${vm} ]
	then
		if [ -f /proc/scsi/scsi ]
		then
			grep -iq "vmware" /proc/scsi/scsi 2> /dev/null && vm="VMware"
			grep -iq "vbox" /proc/scsi/scsi 2> /dev/null && vm="VirtualBox"
			vm_from="/pro/scsi/scsi"
		fi
	fi

	# Check IDE Devices
	if [ -z ${vm} ]
	then
		if [ -d /proc/ide ]
		then
			ide_model=$(cat /proc/ide/hd*/model)
			echo ${ide_model} | grep -iq "vbox" 2> /dev/null && vm="VirtualBox"
			echo ${ide_model} | grep -iq "vmware" 2> /dev/null && vm="VMware"
			echo ${ide_model} | grep -iq "qemu" 2> /dev/null && vm="Qemu/KVM"
			echo ${ide_model} | grep -iqE "virtual (hd|cd)" 2> /dev/null && vm="Hyper-V/Virtual PC"
			vm_from="ide_model"
		fi
	fi

	# Check using lspci
	if [ -z ${vm} ] && [ "${LSPCI}" = "1" ]
	then
			lspci_data=$(lspci)
			echo ${lspci_data} | grep -iq "vmware" 2> /dev/null && vm="VMware"
			echo ${lspci_data} | grep -iq "virtualbox" 2> /dev/null && vm="VirtualBox"
			vm_from="lspci"
	fi

	# Xen bus check
	## XXX: Removing unsafe check
	# this check triggers if CONFIG_XEN_PRIVILEGED_GUEST=y et al are set in kconfig (debian default) even in not actually a guest
	#if [ -z ${vm} ]
	#then
	#	ls -1 /sys/bus | grep -iq "xen" 2> /dev/null && vm="Xen"
	#	vm_from="/sys/bus/xen"
	#fi

	# Check using lscpu
	if [ !${vm} ]
	then
		if [ -x "$(command -v lscpu 2>&1)" ]
                then
                        lscpu_data=$(lscpu)
			echo ${lscpu_data} | grep -iq "Xen" 2> /dev/null && vm="Xen"
			echo ${lscpu_data} | grep -iq "KVM" 2> /dev/null && vm="KVM"
			echo ${lscpu_data} | grep -iq "Microsoft" 2> /dev/null && vm="MS Hyper-V"
			vm_from="lscpu"
		fi
	fi

	#Check vmnet
	if [ -z ${vm} ]
	then
		if [ -e /dev/vmnet ]
		then
			vm="VMware"
			vm_from="/dev/vmnet"
		fi
	fi

	# Check dmesg Output
	if [ -z ${vm} ]
	then
		if [ -x "$(command -v dmesg 2>&1)" ]
                then
			dmesg_output=$(dmesg)
			echo ${dmesg_output} | grep -iqE "vboxbios|vboxcput|vboxfacp|vboxxsdt|(vbox cd-rom)|(vbox harddisk)" && vm="VirtualBox"
			echo ${dmesg_output} | grep -iqE "(vmware virtual ide)|(vmware pvscsi)|(vmware virtual platform)" && vm="VMware"
			echo ${dmesg_output} | grep -iqE "(xen_mem)|(xen-vbd)" && vm="Xen"
			echo ${dmesg_output} | grep -iqE "(qemu virtual cpu version)" && vm="Qemu/KVM"
			vm_from="dmesg"
		fi
	fi
}

#end function definitions
#begin execution

listInterfaces

#this should only run for start in elite mode? or should we have different warnings?
if [ x"${1}" = "xcheck" ] || [ x"${1}" = "xstart" ]
then
	if [ x"${2}" = "xkill" ]
	then
		#if we are killing, tell scanProcesses that
		scanProcesses "${2}"
		return
	elif [ x"${1}" = "xstart" ]
	then
		#this stub can send scanProcesses the interface name
		#but this seems entirely unreliable so just run generic
		#scanProcesses "${2}"
		scanProcesses
	else
		scanProcesses
		exit
	fi
fi

if [ $# -ne "0" ]
then
	if [ x$1 != "xstart" ] && [ x$1 != "xstop" ]
	then
		usage
	fi

	if [ x$2 = "x" ]
	then
		usage
	fi
fi

#startup checks complete, headers then main

if [ "$VERBOSE" = "1" ]
then
	uname -a

	checkvm
	if [ ${vm} ]
	then
		printf "Detected VM using ${vm_from}\n"
		printf "This appears to be a ${vm} Virtual Machine\n"
		printf "If your system supports VT-d, it may be possible to use PCI devices\n"
		printf "If your system does not support VT-d, you can only use USB wifi cards\n"
	fi

	printf "\nK indicates driver is from $(uname -r)\n"
	if [ "${MODPROBE}" = 1 ]
	then
		modprobe compat > /dev/null 2>&1

		if [ -f /sys/module/compat/parameters/compat_version ]
		then
			printf "C indicates driver is from $(cat /sys/module/compat/parameters/compat_version)\n"
		fi
	fi
	printf "V indicates driver comes directly from the vendor, almost certainly a bad thing\n"
	printf "S indicates driver comes from the staging tree, these drivers are meant for reference not actual use, BEWARE\n"
	printf "? indicates we do not know where the driver comes from... report this\n\n"
fi

if [ ${VERBOSE} = "1" ]
then
	printf "\nX[PHY]Interface\t\tDriver[Stack]-FirmwareRev\t\tChipset\t\t\t\t\t\t\t\t\t\tExtended Info\n\n"
else
	printf "PHY\tInterface\tDriver\t\tChipset\n\n"
fi

#this whole block of code shouldn't be here, it makes no sense
for iface in listIfaceUnspec
do

	if [ -e "/proc/sys/dev/$iface/fftxqmin" ]
	then
		setLink ${iface} up
		printf "$iface\t\tAtheros\t\tmadwifi-ng"
		if [ x$1 = "xstart" ] && [ x$2 = x$iface ]
		then
			IFACE=$(wlanconfig ath create wlandev $iface wlanmode monitor -bssid | grep ath)
			setLink ${iface} up
			if [ $CH -lt 1000 ]
			then
				iwconfig $IFACE channel $CH 2> /dev/null > /dev/null
			else
				iwconfig $IFACE freq "$CH"000000 2> /dev/null > /dev/null
			fi
		setLink ${IFACE} up
		UDEV_ISSUE=$?
		fi

		if [ x$1 = "xstop" ] && [ x$2 = x$iface ]
		then
			printf "$iface does not support 'stop', do it on ath interface\n"
		fi

		#why, dear god why is there a random newline here?
		printf "\n"
		sleep 1s
		continue
	fi
done
#end random block of code that needs to die

for iface in $(printf "${iface_list}")
do
	unset ethtool_output DRIVER FROM FIRMWARE STACK MADWIFI MAC80211 BUS BUSADDR BUSINFO DEVICEID CHIPSET EXTENDED PHYDEV ifacet DRIVERt FIELD1 FIELD1t FIELD2 FIELD2t CHIPSETt
	#add a RUNNING check here and up the device if it isn't already
	ethtool_output="$(ethtool -i $iface 2>&1)"
	if [ "$ethtool_output" != "Cannot get driver information: Operation not supported" ]
	then
		getStack  ${iface}
		getDriver   ${iface}
		getChipset ${iface}
		if [ ${VERBOSE} = "1" ]
		then
			getFrom ${iface}
			getFirmware ${iface}
			getExtendedInfo ${iface}
		fi
		getPhy     ${iface}
	else
 		printf "\nethtool failed...\n"
		printf "Only mac80211 devices on kernel 2.6.33 or higher are officially supported by airmon-ng.\n"
		exit 1
	fi

	#yes this really is the main output loop
	if [ ${VERBOSE} = "1" ]
	then
		#beautify output spacing (within reason)
		FIELD1="${FROM}[${PHYDEV}]${iface}"
		if [ ${#FIELD1} -gt 15 ]
		then
			FIELD1t="\t"
		else
			FIELD1t="\t\t"
		fi
		FIELD2="${DRIVER}[${STACK}]-${FIRMWARE}"
		if [ ${#FIELD2} -gt 27 ]
		then
			FIELD2t="\t"
		else
			FIELD2t="\t\t"
		fi
		if [ -n "${EXTENDED}" ]
		then
			CHIPSETt="\t\t\t\t\t\t\t\t\t\t"
			if [ ${#CHIPSET} -gt 70 ]
			then
				CHIPSETt="\t"
			elif [ ${#CHIPSET} -gt 63 ]
			then
				CHIPSETt="\t\t"
			elif [ ${#CHIPSET} -gt 56 ]
			then
				CHIPSETt="\t\t\t"
			elif [ ${#CHIPSET} -gt 49 ]
			then
				CHIPSETt="\t\t\t\t"
			elif [ ${#CHIPSET} -gt 42 ]
			then
				CHIPSETt="\t\t\t\t\t"
			elif [ ${#CHIPSET} -gt 35 ]
			then
				CHIPSETt="\t\t\t\t\t\t"
			elif [ ${#CHIPSET} -gt 28 ]
			then
				CHIPSETt="\t\t\t\t\t\t\t"
			elif [ ${#CHIPSET} -gt 21 ]
			then
				CHIPSETt="\t\t\t\t\t\t\t\t"
			elif [ ${#CHIPSET} -gt 14 ]
			then
				CHIPSETt="\t\t\t\t\t\t\t\t\t"
			fi
		fi
		printf "${FROM}[${PHYDEV}]${iface}${FIELD1t}${DRIVER}[${STACK}]-${FIRMWARE}${FIELD2t}${CHIPSET}${CHIPSETt}${EXTENDED}"
	else
		#beautify output spacing (within reason, interface/driver max length is 15 and phy max length is 7))
		if [ ${#DRIVER} -gt 7 ]
		then
			DRIVERt="\t"
		else
			DRIVERt="\t\t"
		fi
		if [ ${#iface} -gt 7 ]
		then
			ifacet="\t"
		else
			ifacet="\t\t"
		fi
		printf "${PHYDEV}\t${iface}${ifacet}${DRIVER}${DRIVERt}${CHIPSET}"
	fi

	if [ x$MAC80211 = "x1" ]
	then
		if [ x$1 = "xstart" ] && [ x$2 = x$iface ]
		then
			startMac80211Iface $iface
		fi

		if [ x$1 = "xstop" ] && [ x$2 = x$iface ]
		then
			stopMac80211Iface $iface
		fi

		#why, dear god why is there a random newline here?
		printf "\n"
		continue
	fi
done

#why, dear god why is there a random newline here?
printf "\n"

if [ $UDEV_ISSUE != 0 ]
then
	printf "udev renamed the interface. Read the following for a solution:\n"
	printf "http://www.aircrack-ng.org/doku.php?id=airmon-ng#interface_athx_number_rising_ath0_ath1_ath2...._ath45\n\n"
fi