net/nodogsplash/files/nodogsplash.init

   1 #!/bin/sh /etc/rc.common
   2 #
   3 # description: Startup/shutdown script for nodogsplash captive portal
   4 #
   5 # P. Kube 2007
   6 #
   7 # (Based on wifidog startup script
   8 # Date    : 2004-08-25
   9 # Version : 1.0
  10 # Comment by that author: Could be better, but it's working as expected)
  11 #
  12
  13
  14 IPT=/usr/sbin/iptables
  15 WD_DIR=/usr/bin
  16 OPTIONS=""
  17 START=65
  18 STOP=65
  19 # -s -d 5 runs in background, with level 5 (not so verbose) messages to syslog
  20 # -f -d 7 runs in foreground, with level 7 (verbose) debug messages to terminal
  21 # N.B.: -f will fail if starting at boot from rcS
  22 #OPTIONS="-s -d 5"
  23
  24 start() {
  25         echo "Starting nodogsplash ... "
  26         if $WD_DIR/ndsctl status 2> /dev/null; then
  27                 echo "FAILED:  nodogsplash already running"
  28         else
  29                 if $0 test_module && $WD_DIR/nodogsplash $OPTIONS; then
  30                         echo "OK: nodogsplash started"
  31                 else
  32                         echo "FAILED:  nodogsplash exited with non 0 status"
  33                 fi
  34         fi
  35 }
  36
  37 stop() {
  38         echo "Stopping nodogsplash ... "
  39         if $WD_DIR/ndsctl status 2> /dev/null; then
  40                 if $WD_DIR/ndsctl stop; then
  41                         echo "OK: nodogsplash stopped"
  42                 else
  43                         echo "FAILED:  ndsctl stop exited with non 0 status"
  44                 fi
  45         else
  46                 echo "FAILED:  nodogsplash was not running"
  47         fi
  48 status() {
  49         $WD_DIR/ndsctl status
  50 }
  51
  52 test_module() {
  53
  54     ### Test ipt_mark with iptables
  55     test_ipt_mark () {
  56         ($IPT -A FORWARD -m mark --mark 2 -j ACCEPT 2>&1) > /dev/null
  57         IPTABLES_OK=$?
  58         if [ "$IPTABLES_OK" -eq 0 ]; then
  59             ($IPT -D FORWARD -m mark --mark 2 -j ACCEPT 2>&1) > /dev/null
  60             return 0
  61         else
  62             return 1
  63         fi
  64     }
  65     ### Test ipt_mac with iptables
  66     test_ipt_mac () {
  67         ($IPT -A INPUT -m mac --mac-source 00:00:00:00:00:00 -j ACCEPT 2>&1) > /dev/null
  68         IPTABLES_OK=$?
  69         if [ "$IPTABLES_OK" -eq 0 ]; then
  70             ($IPT -D INPUT -m mac --mac-source 00:00:00:00:00:00 -j ACCEPT 2>&1) > /dev/null
  71             return 0
  72         else
  73             return 1
  74         fi
  75     }
  76
  77     ### Test ipt_IMQ with iptables
  78     test_ipt_IMQ () {
  79         ($IPT -t mangle -A PREROUTING -j IMQ --todev 0 2>&1) > /dev/null
  80         IPTABLES_OK=$?
  81         if [ "$IPTABLES_OK" -eq 0 ]; then
  82             ($IPT -t mangle -D PREROUTING -j IMQ --todev 0 2>&1) > /dev/null
  83             return 0
  84         else
  85             return 1
  86         fi
  87     }
  88
  89     ### Test imq with ip
  90     test_imq () {
  91         (ip link set imq0 up 2>&1) > /dev/null
  92         IMQ0_OK=$?
  93         (ip link set imq1 up 2>&1) > /dev/null
  94         IMQ1_OK=$?
  95         if [ "$IMQ0_OK" -eq 0 -a "$IMQ1_OK" -eq 0 ]; then
  96             (ip link set imq0 down 2>&1) > /dev/null
  97             (ip link set imq1 down 2>&1) > /dev/null
  98             return 0
  99         else
 100             return 1
 101         fi
 102     }
 103
 104     ### Test sch_htb with tc; requires imq0
 105     test_sch_htb () {
 106         (tc qdisc del dev imq0 root 2>&1) > /dev/null
 107         (tc qdisc add dev imq0 root htb 2>&1) > /dev/null
 108         TC_OK=$?
 109         if [ "$TC_OK" -eq 0 ]; then
 110             (tc qdisc del dev imq0 root 2>&1) > /dev/null
 111             return 0
 112         else
 113             return 1
 114         fi
 115     }
 116
 117
 118     ### Find a module on disk
 119     module_exists () {
 120       EXIST=$(find /lib/modules/`uname -r` -name $1.*o 2> /dev/null)
 121       if [ -n "$EXIST" ]; then
 122         return 0
 123       else
 124         return 1
 125       fi
 126     }
 127
 128     ### Test if a module is in memory
 129     module_in_memory () {
 130       MODULE=$(lsmod | grep $1 | awk '{print $1}')
 131       if [ "$MODULE" = "$1" ]; then
 132         return 0
 133       else
 134         return 1
 135       fi
 136     }
 137
 138     ### Test functionality of a module; load if necessary
 139     do_module_tests () {
 140         echo "  Testing module $1 $2"
 141         "test_$1"
 142         if [ $? -ne 0 ]; then
 143             echo "   Module $1 $2 needed"
 144             echo "   Scanning disk for $1 module"
 145             module_exists $1
 146             if [ $? -ne 0 ]; then
 147                 echo "   $1 module missing: please install it"
 148                 exit 1
 149             else
 150                 echo "   $1 exists, trying to load"
 151                 insmod $1 $2 > /dev/null
 152                 if [ $? -ne 0 ]; then
 153                     echo "   Error: insmod $1 $2 failed"
 154                     exit 1
 155                 else
 156                     echo "   $1 $2 loaded successfully"
 157                 fi
 158             fi
 159         else
 160             echo "   $1 is working"
 161         fi
 162
 163     }
 164
 165     echo " Testing required modules"
 166
 167     do_module_tests "ipt_mac"
 168     do_module_tests "ipt_mark"
 169     # if not using traffic control,
 170     # you can comment out the following 3 lines:
 171     do_module_tests "imq" "numdevs=2"
 172     do_module_tests "ipt_IMQ"
 173     do_module_tests "sch_htb"
 174 }