Topic: Captive portal configuration

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Post #1

zerog

17 Aug 2017, 17:06

Hello!

I'm using this firmware:

Firmware Version OpenWRTYun Attitude Adjustment 1 / LuCI 0.11 Branch (0.11+svn10537)
Kernel Version 3.3.8

I want to configure it as captive portal, with an html page with some php scripts. I can configure the captive portal, and i can install php, but separately. If i try to do both things the board stops working and it resets itself completely. I show you the commands i used:
Note: i wrote w w w, h t t p, u h t t p d because the forum doesn't allow me to post link. Sorry for the inconvenience!

1) Install PHP:

opkg update
opkg install php5 php5-cgi php5-cli

vi /etc/config/u h t t p d
# Edit to uncomment the list interpreter php

/etc/init.d/u h t t p d restart

# PHP test
cd /mnt/sda1/arduino/w w w
echo "<?=phpinfo(); ?>" >phpinfo.php

Using the browser i can see the php page correctly.

2) Captive portal configuration:

uci set wireless.@wifi-iface[0].ssid='ArduinoWiFi'

uci add_list dhcp.@dnsmasq[0].address='/#/1.1.1.1'

uci add firewall redirect  
uci set firewall.@redirect[-1].name=capture H T T P
uci set firewall.@redirect[-1].src=lan
uci set firewall.@redirect[-1].proto=tcp
uci set firewall.@redirect[-1].src_dip=!$(uci get network.lan.ipaddr)
uci set firewall.@redirect[-1].src_dport=80"
uci set firewall.@redirect[-1].dest_port=8080"
uci set firewall.@redirect[-1].dest_ip=$(uci get network.lan.ipaddr)
uci set firewall.@redirect[-1].target=DNAT

uci add firewall redirect  
uci set firewall.@redirect[-1].name=captureDNS
uci set firewall.@redirect[-1].src=lan
uci set firewall.@redirect[-1].src_dip=!$(uci get network.lan.ipaddr)
uci set firewall.@redirect[-1].src_dport=53
uci set firewall.@redirect[-1].dest_port=53
uci set firewall.@redirect[-1].dest_ip=$(uci get network.lan.ipaddr)
uci set firewall.@redirect[-1].target=DNAT

echo >/etc/h t t p d_redirect.conf 'A:/:/cgi-bin/redirect.cgi'

cat >/w w w/cgi-bin/redirect.cgi <<EOM
#!/bin/sh
echo Status: 302 found
echo Location: h t t p://$(uci get network.lan.ipaddr)
echo Cache-Control: no-cache
echo
echo You are headed for h t t p ://$(uci get network.lan.ipaddr)
EOM

chmod +x /w w w/cgi-bin/redirect.cgi

uci set u h t t p d.redirect='u h t t p d'
uci set u h t t p d.redirect.listen_h t t p='0.0.0.0:8080'
uci set u h t t p d.redirect.cgi_prefix='/cgi-bin'
uci set u h t t p d.redirect.config='/etc/h t t p d_redirect.conf'
uci set u h t t p d.redirect.home='/w w w'

cat >/w w w/cgi-bin/control.cgi <<'EOM' 
   #!/bin/sh
   echo $QUERY_STRING >/dev/ttyATH0
   echo Cache-Control: no-cache
   echo Content-type: text/plain
   echo 
   echo Command sent
   EOM

chmod +x /w w w/cgi-bin/control.cgi

uci commit

reboot -d 1 &

The page path is "/w w w/index.html". As i already said above, after reboot the board resets itself. Maybe there's some conflict between the two configurations. Can somebody help me?

Thanks.

Post #2

mk24

17 Aug 2017, 17:18

Maybe you're running out of RAM? PHP is pretty big.

Post #3

zerog

17 Aug 2017, 17:49

mk24 wrote:

Maybe you're running out of RAM? PHP is pretty big.

Thanks for you reply, how can i check that?

Post #4

mk24

17 Aug 2017, 21:46

Run free or top from the command line.

What model is your router? How much RAM does it have?

Post #5

zerog

20 Aug 2017, 10:52

I'm using the Arduino Yùn board: h t t p s://w w w.arduino.cc/en/Guide/ArduinoYun

Processor: Atheros AR9331
Firmware Version: OpenWRTYun Attitude Adjustment 1 / LuCI 0.11 Branch (0.11+svn10537)
Kernel Version: 3.3.8

Here's the result of top and free after reset (before installing php and configuring captive portal):

root@Arduino:~# free
             total         used         free       shared      buffers
Mem:         61116        26784        34332            0         3464
-/+ buffers:              23320        37796
Swap:            0            0            0

root@Arduino:~# top
Mem: 26832K used, 34284K free, 0K shrd, 3464K buff, 9976K cached
CPU:   0% usr   1% sys   0% nic  97% idle   0% io   0% irq   0% sirq
Load average: 0.31 0.27 0.12 1/53 1858
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 1848  1761 root     R     1492   2%   0% top
 1526     1 root     S     1492   2%   0% /usr/sbin/ntpd -n -p 0.openwrt.pool.n
 1745  1618 root     S     1220   2%   0% /usr/sbin/dropbear -P /var/run/dropbe
 1500     1 nobody   S     2168   4%   0% avahi-daemon: running [Arduino.local]
 1463     1 root     S     1696   3%   0% /usr/sbin/dbus-daemon --system
 1187     1 root     S     1624   3%   0% hostapd -P /var/run/wifi-phy0.pid -B
 1451     1 root     S     1564   3%   0% /usr/sbin/u h t t p d -f -h /w w w -r Arduin
  572     1 root     S     1524   2%   0% {rcS} /bin/sh /etc/init.d/rcS S boot
  766     1 root     S     1500   2%   0% /sbin/syslogd -C16
    1     0 root     S     1496   2%   0% init
 1533     1 root     S N   1496   2%   0% {uSDaemon} /bin/sh /sbin/uSDaemon
 1761  1745 root     S     1496   2%   0% -ash
  701     1 root     S     1496   2%   0% init
  876   809 root     S     1492   2%   0% udhcpc -p /var/run/udhcpc-eth1.pid -s
 1328     1 root     S     1492   2%   0% /sbin/watchdog -t 5 /dev/watchdog
  574   572 root     S     1488   2%   0% logger -s -p 6 -t sysinit
  768     1 root     S     1480   2%   0% /sbin/klogd
 1858  1533 root     S N   1480   2%   0% sleep 2
  809     1 root     S     1476   2%   0% /sbin/netifd
 1618     1 root     S     1152   2%   0% /usr/sbin/dropbear -P /var/run/dropbe

Post #6

zerog

20 Aug 2017, 11:21

After php installation:

root@Arduino:~# free
             total         used         free       shared      buffers
Mem:         61116        39324        21792            0         5172
-/+ buffers:              34152        26964
Swap:            0            0            0

root@Arduino:~# top
Mem: 39360K used, 21756K free, 0K shrd, 5172K buff, 20088K cached
CPU:   0% usr   1% sys   1% nic  96% idle   0% io   0% irq   0% sirq
Load average: 0.18 0.34 0.21 1/55 2909
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 1486     1 root     S N   1496   2%   0% {uSDaemon} /bin/sh /sbin/uSDaemon
 2789  1780 root     R     1492   2%   0% top
 1744  1383 root     S     1216   2%   0% /usr/sbin/dropbear -P /var/run/dropbe
    3     2 root     SW       0   0%   0% [ksoftirqd/0]
 1452     1 nobody   S     2168   4%   0% avahi-daemon: running [Arduino.local]
 1425     1 root     S     1696   3%   0% /usr/sbin/dbus-daemon --system
 1229     1 root     S     1624   3%   0% wpa_supplicant -B -P /var/run/wifi-wl
 2277     1 root     S     1584   3%   0% /usr/sbin/u h t t p d -f -h /w w w -r Arduin
  573     1 root     S     1524   2%   0% {rcS} /bin/sh /etc/init.d/rcS S boot
  699     1 root     S     1500   2%   0% /sbin/syslogd -C16
 1312   733 root     S     1500   2%   0% udhcpc -p /var/run/udhcpc-wlan0.pid -
    1     0 root     S     1496   2%   0% init
 1479     1 root     S     1496   2%   0% /usr/sbin/ntpd -n -p 0.openwrt.pool.n
 1780  1744 root     S     1496   2%   0% -ash
  574     1 root     S     1496   2%   0% init
  799   733 root     S     1492   2%   0% udhcpc -p /var/run/udhcpc-eth1.pid -s
 1264     1 root     S     1492   2%   0% /sbin/watchdog -t 5 /dev/watchdog
  576   573 root     S     1488   2%   0% logger -s -p 6 -t sysinit
  733     1 root     S     1480   2%   0% /sbin/netifd
  701     1 root     S     1480   2%   0% /sbin/klogd

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