moving former sanity tests into system/hooks + iterating

[tests.git] / system / hooks / slice / traceroutes.pl

diff --git a/system/hooks/slice/traceroutes.pl b/system/hooks/slice/traceroutes.pl
new file mode 100755 (executable)
index 0000000..fdb0406
--- /dev/null
+++ b/system/hooks/slice/traceroutes.pl
@@ -0,0 +1,126 @@
+#!/usr/bin/perl
+
+# Module: VNET+
+# Description:         Trace the route path to a node using two methods: TCP-related ICMP errors, and TTL expiry. 
+# Then match the two paths to see that they concord. If there's a slight difference, it's probably OK given that
+# some routers might support one type of error but not the other, and that the routes are not guaranteed to be the
+# same.
+# Dependencies: tcptraceroute, traceroute, which
+# Author: sapanb@cs.princeton.edu
+
+$|=1;
+use strict;
+
+# ********************************************************************************
+# CONFIGURATION
+
+
+# The node that we're going to trace route. It's probably a good idea to change it
+# periodically so that we don't harass the same host.
+my $guineapig="vini-veritas.net";
+
+# Location of traceroute, tcptraceroute
+my $ttraceroute=`which tcptraceroute 2>/dev/null`;
+my $traceroute=`which traceroute 2>/dev/null`;
+
+my %tr;
+
+chop($ttraceroute);
+chop($traceroute);
+
+if ($traceroute !~ /^\//) {
+       $traceroute=`which tracepath 2>/dev/null`;
+       chop($traceroute);
+}
+
+if (!-e "$ttraceroute") {
+       print $ttraceroute."\n";
+       print "[OOPS] TCPtraceroute not found. Installing... \n";
+    system("yum -y tcptraceroute");
+    if (!-e "$ttraceroute") {
+           print "[FAILED] TCPtraceroute could not be installed. Test failed.\n";
+    }
+}      
+else {
+       print "Found tcptraceroute. Good.\n";
+}
+
+if ($traceroute !~ /^\//) {
+       die("[FAILED] Please install traceroute in the slice before running this test\n");
+}      
+
+sub open_tcptraceroute {
+       my $cmdline="sudo $ttraceroute $guineapig 2>&1";
+       print $cmdline."\n";
+       my $out='';
+       open TT,"$cmdline|";
+
+       while (<TT>) {
+               if (/\((\d+\.\d+\.\d+\.\d+)\)/) {
+            glob %tr;
+            $tr{"IP$1"}++;
+            print ">>>$1\n";
+               }
+       }
+}
+
+sub open_traceroute {
+       my $ref=shift;
+       my $cmdline="$traceroute $guineapig 2>&1";
+       my $out='';
+       print $cmdline."\n";
+       open TT,"$cmdline|";
+
+       while (<TT>) {
+               if (/\((\d+\.\d+\.\d+\.\d+)\)/) {
+            glob %tr;
+            $tr{"IP$1"}++;
+            print ">>>$1\n";
+               }
+       }
+}
+
+sub compare {
+       my $ret=1;
+       my $double=0;
+       my $single=0;
+       glob %tr;
+       foreach (keys %tr) {
+               if ($tr{$_}==1) {
+                       $single++;
+               } elsif ($tr{$_}==2) {
+                       $double++;
+               }
+       }
+       return ($single,$double);
+}
+
+sub alhandler {
+       print "[FAILED] Timed out waiting.\n";
+       exit(-1);
+}
+
+if (fork==0) {
+       my %r1;
+       my $s;
+       my $d;
+    glob %tr;
+
+       open_tcptraceroute;
+       open_traceroute;
+
+    ($s,$d)=compare;
+
+    if ($d>4) {
+        print "[SUCCESS] traceroutes succeeded, singles: $s, doubles: $d\n";
+    }
+    else {
+        print "[FAILED] traceroutes returned different results: $s, $d\n";
+    }
+}
+else {
+       print "Generating connections...\n";
+       $SIG{ALRM}=\&alhandler;
+       alarm(60);
+       wait;
+}