l0rdnic0 Posted January 13, 2010 Share Posted January 13, 2010 EDIT: read my last comment, this is working now and if you want to do the same look at my last post. Can anyone help... I am a complete noob when it comes to scripting but if I can't get an answer from the community I'm not afraid of busting out good old Google and giving it a crack and then sharing it back to the community... So here's today's question. Has anyone used the GPIO pins for the reset button (or just the reset button for that matter) to control the wifi of the Fon? I found this LINK where it shows you how to do just that, but as always I'm looking for more. So from what I understand you can control the LED and the wifi gpio's by pressing the reset button. However I want it to do more. What I would like it to do is run a script that would do the following.. 1.) Not change the state of the wifi at all 2.) killall hostapd 3.) Start karma 4.) Start tcpdump and log all packets to my SDCard Anyone feel like helping out (I hate to say it a LAZY) noob? Quote Link to comment Share on other sites More sharing options...
nmaas87 Posted January 14, 2010 Share Posted January 14, 2010 I don't know, but I really want to do something similar on the Fon2100, too... Sadly I didn't came up with any answer 'till now. So if anyone knows, I would be happy aswell ;-). Quote Link to comment Share on other sites More sharing options...
DELETE ME Posted January 14, 2010 Share Posted January 14, 2010 I'm no linux guru, but after looking around I came up with this, I have no idea if it works but it might point you in the right area. Generic Toggle Script Create a file called wogglein /sbin and paste this into it: #!/bin/sh KARMA_STATE = `get_karma` Case "$KARMA_STATE" in 1) # Karma is on karma_cli -s off hostapd 0) # karma is off killall -9 hostapd karma_cli -s on tcpdump -i ath0 -w /mnt/tcpdump esac Then set chmod +x /sbin/woggle Hotplugging Now to get hotplugging working, create a directory in /etc/hotplug.d called button and then create a file in /etc/hotplug.d/button called 01-radio-toggle as in the original wifi toggle script (above). Paste this into that file: if [ "$BUTTON" = "ses" ]; then if [ "$ACTION" = "pressed" ]; then /sbin/woggle fi fi and set chmod +x 01-radio-toggle Ref: http://wiki.openwrt.org/oldwiki/openwrtdoc...ware/wifitoggle Quote Link to comment Share on other sites More sharing options...
l0rdnic0 Posted January 14, 2010 Author Share Posted January 14, 2010 I'm at work now so I"ll try that as soon as I get home and let you all know... Thanks again!!! EDIT: OK so I tried this and had a lot of problems, but I was dead set on making it work so this is what I have so far... Note its still not 100% but its getting there... Mind you I am running Piranha 2.0 so the hostapd line may be different for you, but I'm not sure. Also right now I'm just focused on the script part and not so much the button part. When I execute the script it does everything 100% correctly. However when I run the script a second time to kill Karma, tcpdump and re-enable hostapd everything works except for the hostapd part. I'll provide the error that I'm getting in a little bit.. I know there is a fix for it but I didn't have time to work with it any more. root@Jasager:/sbin# vi woggle #!/bin/sh KARMA_STATE=`iwpriv ath0 get_karma | cut -d ":" -f2` echo "KARMA_STATE=$KARMA_STATE" case "$KARMA_STATE" in # KARMA IS ON... 1* ) echo "Turning off Karma"; killall tcpdump; karma_cli -s off; hostapd -P /var/run/wifi-ath0.pid -B /var/run/hostapd-ath0.conf; ;; # KARMA IS OFF... 0* ) echo "Turning on Karma"; killall -9 hostapd; karma_cli -s on; tcpdump -i ath0 -s 0 -U -w /mnt/mmc/tasty.tcpdump&; ;; *) echo "Umm do you have Karma installed?" esac ~ Quote Link to comment Share on other sites More sharing options...
l0rdnic0 Posted January 15, 2010 Author Share Posted January 15, 2010 OK so like I mentioned the first time I run the script everything is fine. However the Second time I get an error (in bold). Now if I run the line "hostapd -P /var/run/wifi-ath0.pid -B /var/run/hostapd-ath0.conf" again it looks like it works fine... How should I restart the hostapd correctly? root@Jasager:/# woggle KARMA_STATE=0 Turning on Karma Turning Karma On root@Jasager:/# tcpdump: WARNING: ath0: no IPv4 address assigned tcpdump: listening on ath0, link-type EN10MB (Ethernet), capture size 96 bytes root@Jasager:/# woggle KARMA_STATE=1 Turning off Karma 45 packets captured 45 packets received by filter 0 packets dropped by kernel Turning Karma Off Configuration file: /var/run/hostapd-ath0.conf Using interface ath0 with hwaddr 00:18:84:27:86:11 and ssid 'default' bind(PF_UNIX): Address already in use Failed to setup control interface root@Jasager:/# Note the BOLD text above. Now if I run this part of the script a second time, as you can see below it works the way its intended. Can someone tell me why? root@Jasager:/# hostapd -P /var/run/wifi-ath0.pid -B /var/run/hostapd-ath0.conf Configuration file: /var/run/hostapd-ath0.conf Using interface ath0 with hwaddr 00:18:84:27:86:11 and ssid 'default' root@Jasager:/# Thanks again for the help.. Quote Link to comment Share on other sites More sharing options...
digininja Posted January 16, 2010 Share Posted January 16, 2010 From some googling it looks like that error is because of an unclean shutdown of hostapd. Try taking out the -9 on the kill and let it shutdown normally, see if that fixes it. Quote Link to comment Share on other sites More sharing options...
l0rdnic0 Posted January 16, 2010 Author Share Posted January 16, 2010 From some googling it looks like that error is because of an unclean shutdown of hostapd. Try taking out the -9 on the kill and let it shutdown normally, see if that fixes it. That did it.... w00t! Quote Link to comment Share on other sites More sharing options...
l0rdnic0 Posted January 17, 2010 Author Share Posted January 17, 2010 OK to get this to work when you press the reset button this is what you need to do. First you need to install the "hotplug2" package if its not installed...... Then create a file called /etc/hotplug.d/button/30-button-trigger in that file past this #!/bin/sh if [ "${ACTION}" == "released" ] then /sbin/woggle fi Now create a file called /sbin/woggle and paste the following... !/bin/sh KARMA_STATE=`iwpriv ath0 get_karma | cut -d ":" -f2` echo "KARMA_STATE=$KARMA_STATE" case "$KARMA_STATE" in # KARMA IS ON... 1* ) echo "Turning off Karma"; killall tcpdump; karma_cli -s off; hostapd -P /var/run/wifi-ath0.pid -B /var/run/hostapd-ath0.conf; ;; # KARMA IS OFF... 0* ) echo "Turning on Karma"; mv /mnt/mmc/tasty.tcpdump /mnt/mmc/tasty.tcpdump.old killall hostapd; karma_cli -s on; tcpdump -i ath0 -w /mnt/mmc/tasty.tcpdump & ;; *) echo "Umm do you have Karma installed?" esac OK to finish up lets make sure that the woggle script is executable. chmod +x /sbin/woggle SPECIAL THANKS TO 01706 and digininja!!!!! I have learned a bunch about this so if you have questions maybe I can help. Hope someone out there finds use in this.... Quote Link to comment Share on other sites More sharing options...
digininja Posted January 17, 2010 Share Posted January 17, 2010 Nice work. Quote Link to comment Share on other sites More sharing options...
nmaas87 Posted February 24, 2010 Share Posted February 24, 2010 Excellent, thank you for posting! ^-^ Quote Link to comment Share on other sites More sharing options...
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