From 6d76521656e91daa160bc8019828f1b68d7aa5dc Mon Sep 17 00:00:00 2001
From: Niko Tyni <ntyni@iki.fi>
Date: Sun, 13 Feb 2005 19:23:04 +0000
Subject: Moved probes, matchers and ciscoRttMonMIB modules to lib/Smokeping.

---
 lib/Smokeping/probes/AnotherSSH.pm | 238 +++++++++++++++++++++++++++++++++++++
 1 file changed, 238 insertions(+)
 create mode 100644 lib/Smokeping/probes/AnotherSSH.pm

(limited to 'lib/Smokeping/probes/AnotherSSH.pm')

diff --git a/lib/Smokeping/probes/AnotherSSH.pm b/lib/Smokeping/probes/AnotherSSH.pm
new file mode 100644
index 0000000..c708de9
--- /dev/null
+++ b/lib/Smokeping/probes/AnotherSSH.pm
@@ -0,0 +1,238 @@
+package Smokeping::probes::AnotherSSH;
+
+=head1 301 Moved Permanently
+
+This is a Smokeping probe module. Please use the command 
+
+C<smokeping -man Smokeping::probes::AnotherSSH>
+
+to view the documentation or the command
+
+C<smokeping -makepod Smokeping::probes::AnotherSSH>
+
+to generate the POD document.
+
+=cut
+
+use strict;
+use base qw(Smokeping::probes::basefork);
+use Carp;
+use Time::HiRes qw(sleep ualarm gettimeofday tv_interval);
+use IO::Select;
+use Socket;
+use Fcntl;
+
+sub pod_hash {
+	return {
+		name => <<DOC,
+Smokeping::probes::AnotherSSH - Another SSH probe
+DOC
+		description => <<DOC,
+Latency measurement using SSH. This generates Logfile messages on the other 
+Host, so get permission from the owner first! 
+DOC
+		authors => <<'DOC',
+Christoph Heine <Christoph.Heine@HaDiKo.DE>
+DOC
+	}
+}
+
+sub new($$$) {
+    my $proto = shift;
+    my $class = ref($proto) || $proto;
+    my $self  = $class->SUPER::new(@_);
+    return $self;
+}
+
+sub ProbeDesc($) {
+    my $self = shift;
+    return "SSH connections";
+}
+
+sub pingone ($) {
+    my $self   = shift;
+    my $target = shift;
+
+    my $host       = $target->{addr};
+    
+    # Time 
+    my $mininterval = $target->{vars}{mininterval};
+    
+    # Our greeting string.
+    my $greeting  = $target->{vars}{greeting};
+    
+    # Interval to measure
+    my $interval = $target->{vars}{interval};
+
+   # Connect to this port.
+    my $port = $target->{vars}{port};
+
+    #Timeout for the select() calls.
+    my $timeout = $target->{vars}{timeout};
+    
+    my @times; # Result times
+        
+    my $t0;
+    for ( my $run = 0 ; $run < $self->pings($target) ; $run++ ) {
+    	if (defined $t0) {
+		my $elapsed = tv_interval($t0, [gettimeofday]);
+		my $timeleft = $mininterval - $elapsed;
+		sleep $timeleft if $timeleft > 0;
+	}
+    	my ($t1,$t2,$t3); # Timestamps.
+	
+	#Temporary variables to play with.
+	my $ready;
+	my $buf;
+	my $nbytes;
+	
+    	my $proto = getprotobyname('tcp');
+	my $iaddr = gethostbyname($host);
+	my $sin = sockaddr_in( $port, $iaddr );
+	socket( Socket_Handle, PF_INET, SOCK_STREAM, $proto );
+	
+	# Make the Socket non-blocking
+    	my $flags = fcntl( Socket_Handle, F_GETFL, 0 ) or do {
+		$self->do_debug("Can't get flags for socket: $!");
+		close(Socket_Handle);
+		next;
+	 };
+	
+	fcntl( Socket_Handle, F_SETFL, $flags | O_NONBLOCK ) or do {
+		$self->do_debug("Can't make socket nonblocking: $!");
+		close(Socket_Handle); next;
+	};
+	
+	my $sel = IO::Select->new( \*Socket_Handle );
+
+	# connect () and measure the Time.
+	$t0 = [gettimeofday];
+	connect( Socket_Handle, $sin );
+	($ready) = $sel->can_read($timeout);
+	$t1 = [gettimeofday];
+	
+	if(not defined $ready) {
+		$self->do_debug("Timeout!");
+		close(Socket_Handle); next;
+	 }
+	$nbytes = sysread( Socket_Handle, $buf, 1500 );	
+	if (not defined $nbytes or $nbytes <= 0) {
+		$self->do_debug("Read nothing and Connection closed!");
+		close(Socket_Handle); next;
+	}
+	# $self->do_debug("Got '$buf' from remote Server");
+	if (not $buf =~ m/^SSH/) {
+		$self->do_debug("Not an SSH Server");
+		close(Socket_Handle); next;
+	}
+	
+	($ready) = $sel->can_write($timeout);
+	if (not defined($ready)) {
+		$self->do_debug("Huh? Can't write.");
+		close(Socket_Handle); next;
+	}
+	$t2 = [gettimeofday];
+	syswrite( Socket_Handle, $greeting . "\n" );
+	($ready) = $sel->can_read($timeout);
+	$t3 = [gettimeofday];
+	if(not defined $ready) {
+		$self->do_debug("Timeout!");
+		close(Socket_Handle); next;
+	 }
+	 close(Socket_Handle);
+
+	 # We made it! Yeah!
+
+	 if( $interval eq "connect") {
+	 	push @times, tv_interval( $t0, $t1 );
+	 } elsif ( $interval eq "established") {
+	 	push @times, tv_interval($t2,$t3);
+	} elsif ($interval eq "complete") {
+	 	push @times, tv_interval($t0,$t3);
+	} else {
+		$self->do_debug("You should never see this message.\n The universe will now collapse. Goodbye!\n");
+	}
+
+	
+    }
+    @times =
+      map { sprintf "%.10e", $_ } sort { $a <=> $b } grep { $_ ne "-" } @times;
+
+    return @times;
+}
+
+sub probevars {
+	my $class = shift;
+	my $h = $class->SUPER::probevars;
+	delete $h->{timeout};
+	return $h;
+}
+
+sub targetvars {
+	my $class = shift;
+	my $e = "=";
+	return $class->_makevars($class->SUPER::targetvars, {
+		greeting => {
+			_doc => <<DOC,
+Greeting string to send to the SSH Server. This will appear in the Logfile. 
+Use this to make clear, who you are and what you are doing to avoid confusion.
+
+Also, don't use something that is a valid version string. This probe assumes
+that the connection gets terminated because of protocol mismatch.
+DOC
+			_default => "SSH-Latency-Measurement-Sorry-for-this-logmessage" ,
+		},
+		mininterval => {
+			_doc => "Minimum interval between the start of two connection attempts in (possibly fractional) seconds.",
+			_default => 0.5,
+			_re => '(\d*\.)?\d+',
+		},
+		interval => {
+			_doc => <<DOC,
+The interval to be measured. One of:
+
+${e}over
+
+${e}item connect
+
+Interval between connect() and the greeting string from the host.
+
+${e}item established
+
+Interval between our greeting message and the end of the connection 
+because of Protocol mismatch. This is the default.
+
+${e}item complete
+
+From connect() to the end of the connection.
+
+${e}back
+
+DOC
+
+			_sub => sub {
+				my $interval = shift;
+    				if(not ( $interval eq "connect" 
+				      or $interval eq "established" 
+				      or $interval eq "complete")) {
+   					return "ERROR: Invalid interval parameter";
+				}
+				return undef;
+			},
+			_default => 'established',
+		},
+		timeout => {
+			_doc => 'Timeout for the connection.',
+			_re => '\d+',
+			_default => 5,
+		},
+		port => {
+			_doc => 'Connect to this port.',
+			_re => '\d+',
+			_default => 22,
+		},
+	});
+}
+
+1;
+
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