#!/bin/bash
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wpa_ret ( )
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{
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if [ $1 != "OK" ]
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then
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if [ $3 == 1 ]
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then
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wpa_cli remove_network $2>/dev/null
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echo "wpa_cli command failed on $2"
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fi
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exit 1
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fi
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}
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connect_ap ( )
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{
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#if [ $1 -eq 1 ]
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#then
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ssid=\""$2"\"
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pw=\""$3"\"
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declare -i scantimes=1
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nw_no=$(wpa_cli add_network | sed '1d')
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ret=$(wpa_cli set_network $nw_no ssid $ssid | sed '1d')
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echo "Set ssid for nw $nw_no: $ret"
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wpa_ret $ret $nw_no 1
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if [ $5 == "WPA" -o $5 == "WPA2" ]
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then
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ret=$(wpa_cli set_network $nw_no psk $pw | sed '1d')
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echo "Set PSK: $ret"
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wpa_ret $ret $nw_no 1
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elif [ $5 == "WEP40" -o $5 == "WEP128" -o $5 == "OPEN" ]
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then
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ret=$(wpa_cli set_network $nw_no key_mgmt NONE | sed '1d')
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echo "Set Key-mgmt: $ret"
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wpa_ret $ret $nw_no 1
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ret=$(wpa_cli set_network $nw_no auth_alg OPEN | sed '1d')
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echo "Set Aith-alg: $ret"
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wpa_ret $ret $nw_no 1
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if [ $5 != "OPEN" ]
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then
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ret=$(wpa_cli set_network $nw_no wep_key0 $pw | sed '1d')
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echo "Set wep key: $ret"
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wpa_ret $ret $nw_no 1
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fi
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fi
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#echo "Set proto"
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#ret=$(wpa_cli set_network $nw_no proto WPA | sed '1d')
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#wpa_cli status #echo $ret
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#wpa_ret $ret $nw_no 1
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#echo "Set key_mgmt"
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#ret=$(wpa_cli set_network $nw_no key_mgmt WPA-PSK | sed '1d')
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#wpa_cli status #echo $ret
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#wpa_ret $ret $nw_no 1
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#echo "Set pairwise"
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#ret=$(wpa_cli set_network $nw_no pairwise CCMP | sed '1d')
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#wpa_cli status #echo $ret
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#wpa_ret $ret $nw_no 1
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#echo "Set group"
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#ret=$(wpa_cli set_network $nw_no group CCMP | sed '1d')
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#wpa_cli status #echo $ret
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#wpa_ret $ret $nw_no 1
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ret=$(wpa_cli enable_network $nw_no | sed '1d')
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echo "Enable nw $nw_no: $ret"
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wpa_ret $ret $nw_no 1
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#echo "Connect"
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#ret=$(wpa_cli reconnect | sed '1d')
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#wpa_cli status #echo $ret
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#wpa_ret $ret $nw_no 1
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state=$(wpa_cli status -i $1 | grep wpa_state | sed 's/wpa_state=//g')
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form_st="INACTIVE"
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while [ $state != "COMPLETED" ]
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do
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if [ $form_st != $state ]
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then
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echo "Status: $state"
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fi
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if [ $state == "SCANNING" ]
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then
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sleep 1
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elif [ $state == "DISCONNECTED" ]
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then
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if [ $scantimes <= $4]
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then
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echo "Connect"
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ret=$(wpa_cli reconnect | sed '1d')
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wpa_ret $ret $nw_no 1
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$scantimes=$scantimes + 1
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else
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echo "exceed scan times=$scantimes"
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fi
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fi
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form_st=$state
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state=$(wpa_cli status -i $1 | grep wpa_state | sed 's/wpa_state=//g')
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done
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if [ $state == "COMPLETED" ]
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then
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echo "Connected and request for IP address"
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dhclient -4 $1 >/dev/null
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fi
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#fi
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}
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if [ $# -eq 5 ]
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then
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echo "Scanning"
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declare -i total_scantime=$4
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for((i=1; i<=$4; i=i+1))
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do
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echo "scan loop:$i"
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scan_st=$(wpa_cli scan -i $1)
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total_scantime=total_scantime-1
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sleep 2
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result=$(wpa_cli scan_results -i $1 | grep -c $2)
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if [ $result -eq 1 ]
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then
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echo "Target AP $2 is found."
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break;
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fi
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done
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if [ $result -eq 1 ]
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then
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connect_ap $1 $2 $3 $total_scantime $5
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else
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echo "Target ap is not found"
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fi
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elif [ $3 == "off" ]
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then
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echo "Disconnect AP"
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dhclient -r $1 >/dev/null
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dhclient -x >/dev/null
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nw_no=$(wpa_cli list_network | grep CURRENT | awk '{print $1}')
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echo "Disable network"
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ret=$(wpa_cli disable_network $nw_no | sed '1d')
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wpa_ret $ret $nw_no 1
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echo "Remove network"
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ret=$(wpa_cli remove_network $nw_no | sed '1d')
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wpa_ret $ret $nw_no 0
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else
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echo "====================================================================================="
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echo "manual scan & connect script"
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echo "./scan_conn.sh <interface> <BSSID> <PW> <scan_times>"
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echo "./scan_conn.sh <interface> <BSSID> off"
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echo "====================================================================================="
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fi
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