[SOLVED] script to connect to network

raca · **Joined:** Thu May 03, 2007 3:44 pm **Posts:** 25

Hi I need some help to improve my network connection script.

Code:

#!/bin/sh
wpa_supplicant -B -i eth1 -w -D wext -c /etc/wpa_net.conf
sleep 3
dhcpcd eth1

You notice the sleep 3... I wanna know if there is a way to know if wpa_supplicant successfully coonnected to the network so then I do dhcpd eth1.

DodoFXP · **Posted:** Wed May 16, 2007 6:23 pm

Just connect them with like this:
wpa_supplicant (.........) -c /etc/wpa_supplicant.conf && dhcpcd

This way, dhcpcd is only called if wpa_supplicant was run succsessfully.

sweetnsourbkr · **Posted:** Wed May 16, 2007 6:45 pm

I wrote this for WEP. You might find it useful:

Code:

# Function to configure ath0 and obtain a DHCP IP address
dhcp_get() {
  echo "Configuring interface ...";
  iwconfig $device essid $essid key $key ;
  echo "Acquiring IP Address ... "; 
  dhcpcd -d -t 10 $device;
  # The following will check if there was an IP addr issued
  if [[ -f /etc/dhcpc/dhcpcd-ath0.pid ]]
  then
    echo "Connection ready!";
    echo ;
    iwconfig $device ;
    ifconfig $device ;
    exit 0 ;
  else
    echo "Connection attempt unsuccessful.";
    echo ;
    iwconfig $device ;    # dhcpcd will automatically bring ath0 down
    exit 101 ;
  fi
}

The whole script: http://www.mooworld.org/src/bash/getwifi1

rhys_rhaven · **Posted:** Fri May 18, 2007 2:30 am

#!/bin/bash
INTERFACE=eth0
/usr/sbin/wpa_supplicant -Bw -D wext -i ${INTERFACE} -c /etc/wpa_supplicant.conf
/sbin/dhcpcd -d ${INTERFACE}
exit 0

this is /usr/sbin/netcfg. ive added it to the sudoers file, and made an icon on my desktop. all wifi networks can be set in /etc/wpa_supplicant.conf, no matter WPA, WEP, or unsecure. As long as you understand how to edit your wpa_supplicant.conf file, it will automaticly choose whatever you like.

btw, the option -Bw (daemonize and wait) removes the need for the sleep, as it wont release control untill it finishes. logical AND (&&) is still a good idea though, incase the wpa_supplicant line fails.

you could do far fancier stuff than this, (reporting IP or the like) but since i normally run it from an icon, i dont care to.

_PN_boy · **Posted:** Fri May 18, 2007 7:53 am

Hi,
here's one of the one's I'm using:

Code:

#!/bin/bash
INTERFACE=wlan0
ESSID=e-U
pid=`pidof wpa_supplicant`
if [ -s $pid ]; then
        kill -9 $pid >/dev/null 2>&1
fi
if [ -f /etc/dhcpc/dhcpcd-${INTERFACE}.pid ]; then
        kill -9 $(cat /etc/dhcpc/dhcpcd-${INTERFACE}.pid) >/dev/null 2>&1
        rm /etc/dhcpc/dhcpcd-${INTERFACE}.pid
fi
iwconfig ${INTERFACE} essid $ESSID
/usr/sbin/wpa_supplicant -Dwext -i${INTERFACE} -c/etc/wpa_supplicant.conf -B
sleep 5
dhcpcd -d ${INTERFACE}

Regards,

raca · **Joined:** Thu May 03, 2007 3:44 pm **Posts:** 25

The '-Bw' option doesn't work with, I use wpa_supplicant that came with zenwalk and also I don't know how to edit the wpa_supplicant.conf because there is no manual page for that.

Others ways don't do I need also...

I'm doing a script that will parse the output from wpa_supplicant and see in some time if the autentication is successful but it might take a long time to do it.

thanks for the answer you are giving me ideas.

[SOLVED] script to connect to network

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