Differences

This shows you the differences between two versions of the page.

@@ Line 1: / Line 1: @@
+====== iax2.sh ======
+^ Author | [[ etmsys@rit.edu | Eric Meddaugh ]] |
+^ Compatibility | Xymon 4.2 |
+^ Requirements | Perl |
+^ Download | None |
+^ Last Update | 2008-09-11 |
+===== Description =====
+Monitor IAX2 on an Asterisk server. Needs access to UDP port 4569.
+===== Installation =====
+=== Client configuration ===
+None.
+=== Server configuration ===
+Add following to the hobbitlaunch.cfg file
+<code>
+[iax2]
+        ENVFILE /home/hobbit/server/etc/hobbitserver.cfg
+        NEEDS hobbitd
+        CMD  $BBHOME/ext/iax2.sh
+        LOGFILE $BBSERVERLOGS/iax2.log
+        INTERVAL 1m
+</code>
+Add the "iax2" tag in bb-hosts.
+===== Source =====
+==== Monitor Code ====
+iax2.sh -- Place in ext directory, this is the main script hobbit calls.
+<hidden onHidden="Show Code ⇲" onVisible="Hide Code ⇱">
+<code>
+#!/bin/sh
+#
+COLUMN=iax2
+TIMEOUT=10
+$BBHOME/bin/bbhostgrep --no-down ${COLUMN} |
+while read L
+do
+     set $L
+     IP="$1"
+     HOSTNAME="$2"
+     COLOR=green
+# linux use "/usr/bin/time -p" instead of ptime
+     /bin/ptime $BBHOME/ext/iax2ping.pl $IP >$BBTMP/${COLUMN}.out 2>&1
+     SECONDS=`egrep "^real" $BBTMP/${COLUMN}.out | awk '{printf $2}'`
+     OK=`/bin/egrep -c "Response from" $BBTMP/${COLUMN}.out`
+     BAD=`/bin/egrep -c "Error" $BBTMP/${COLUMN}.out`
+     if [ ${OK} -eq 0 -a ${BAD} -ge 1 ] ; then
+        COLOR=red
+        MSG="IAX2 query failed
+`cat $BBTMP/${COLUMN}.out | egrep -vi user`
+Seconds: ${SECONDS}
+"
+     elif [ ${OK} -ge 1 -a ${BAD} -ge 1 ] ; then
+        COLOR=yellow
+        MSG="IAX2 query weird
+`cat $BBTMP/${COLUMN}.out | egrep -vi user`
+Seconds: ${SECONDS}
+"
+     else
+        COLOR=green
+        MSG="IAX2 query succeeded
+`cat $BBTMP/${COLUMN}.out | egrep -vi user`
+Seconds: ${SECONDS}
+"
+  fi
+  $BB $BBDISP "status $HOSTNAME.$COLUMN $COLOR `date`
+  $MSG"
+done
+exit 0
+</code>
+</hidden>
+\\
+iax2ping.pl -- Place in ext folder
+<hidden onHidden="Show Code ⇲" onVisible="Hide Code ⇱">
+<code perl>
+#!/usr/bin/perl -w
+#udp ping tool
+use IO::Socket;
+$target = shift; #"192.168.0.255";
+$target_port = 4569;
+socket(PING, PF_INET, SOCK_DGRAM, getprotobyname("udp"));
+# Build Packet ...
+# Names from ethereal filter of registration packet
+$src_call = "8000"; #8000 most siginificant bit is IAX packet type full ... required for a poke etc...
+$dst_call = "0000";
+$timestamp = "00000000";
+$outbound_seq = "00";
+$inbound_seq = "00";
+$type = "06"; #IAX_Control
+$iax_type = "1e"; #POKE
+$msg = pack "H24", $src_call . $dst_call . $timestamp . $outbound_seq . $inbound_seq . $type . $iax_type;
+# Send UDP packet
+$ipaddr = inet_aton($target);
+$sendto = sockaddr_in($target_port,$ipaddr);
+send(PING, $msg, 0, $sendto) == length($msg) or die "cannot send to $target : $target_port : $!\n";
+# Listen for responses... listen for TIMEOUT seconds and report all responders (works for broadcast pings)
+$MAXLEN = 1024;
+$TIMEOUT = 15;
+eval {
+local $SIG{ALRM} = sub { die "alarm time out"; };
+alarm $TIMEOUT;
+$total = 3;
+$count = 0;
+while ($count < $total) {
+  $recvfrom = recv(PING, $msg, $MAXLEN, 0) or die "recv: $!";
+  ($port, $ipaddr) = sockaddr_in($recvfrom);
+  $respaddr = inet_ntoa($ipaddr);
+  print "Response from $respaddr : $port\n";
+  $count++;
+}
+$type = "06"; #IAX_Control
+$iax_type = "04"; #ACK
+$msg = pack "H24", $src_call . $dst_call . $timestamp . $outbound_seq . $inbound_seq . $type . $iax_type;
+send(PING, $msg, 0, $sendto) == length($msg) or die "cannot send to $target : $target_port : $!\n";
+};
+if ($@) {
+       print "Error Timeout waiting for packet from: $target\r\n";
+       $type = "06"; #IAX_Control
+       $iax_type = "04"; #ACK
+       $msg = pack "H24", $src_call . $dst_call . $timestamp . $outbound_seq . $inbound_seq . $type . $iax_type;
+       send(PING, $msg, 0, $sendto) == length($msg) or die "cannot send to $target : $target_port : $!\n";
+}
+</code>
+</hidden>
+===== Known  Bugs and Issues =====
+===== To Do =====
+===== Credits =====
+===== Changelog =====
+  * **2008-09-11**
+    * Initial release