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lib/Smokeping/probes/OpenSSHJunOSPing.pm Normal file
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package Smokeping::probes::OpenSSHJunOSPing;
=head1 301 Moved Permanently
This is a Smokeping probe module. Please use the command
C<smokeping -man Smokeping::probes::OpenSSHJunOSPing>
to view the documentation or the command
C<smokeping -makepod Smokeping::probes::OpenSSHJunOSPing>
to generate the POD document.
=cut
use strict;
use base qw(Smokeping::probes::basefork);
use Net::OpenSSH;
use Carp;
my $e = "=";
sub pod_hash {
return {
name => <<DOC,
Smokeping::probes::OpenSSHJunOSPing - Juniper SSH JunOS Probe for SmokePing
DOC
description => <<DOC,
Connect to Juniper JunOS via OpenSSH to run ping commands.
This probe uses the "extended ping" of the Juniper JunOS. You have
the option to specify which interface the ping is sourced from as well.
DOC
notes => <<DOC,
${e}head2 JunOS configuration
The JunOS device should have a username/password configured, as well as
the ability to connect to the VTY(s).
Make sure to connect to the remote host once from the command line as the
user who is running smokeping. On the first connect ssh will ask to add the
new host to its known_hosts file. This will not happen automatically so the
script will fail to login until the ssh key of your juniper box is in the
known_hosts file.
Some JunOS devices have a maximum of 5 VTYs available, so be careful not
to hit a limit with the 'forks' variable.
${e}head2 Requirements
This module requires the L<Net::OpenSSH> and L<IO::Pty>.
DOC
authors => <<'DOC',
Tobias Oetiker E<lt>tobi@oetiker.chE<gt>
based on L<Smokeping::probes::TelnetJunOSPing> by S H A N E<lt>shanali@yahoo.comE<gt>.
DOC
}
}
sub new($$$)
{
my $proto = shift;
my $class = ref($proto) || $proto;
my $self = $class->SUPER::new(@_);
# no need for this if we run as a cgi
unless ( $ENV{SERVER_SOFTWARE} ) {
$self->{pingfactor} = 1000; # Gives us a good-guess default
print "### assuming you are using an JunOS reporting in milliseconds\n";
};
return $self;
}
sub ProbeDesc($){
my $self = shift;
my $bytes = $self->{properties}{packetsize};
my $ret = "Juniper JunOS - ICMP Echo Pings ($bytes Bytes";
if (defined (my $tos = $self->{properties}{tos})){
$ret = " tos $tos";
}
return $ret.")";
}
sub pingone ($$){
my $self = shift;
my $target = shift;
my $source = $target->{vars}{source};
my $dest = $target->{vars}{host};
my $psource = $target->{vars}{psource};
my @output = ();
my $login = $target->{vars}{junosuser};
my $password = $target->{vars}{junospass};
my $bytes = $self->{properties}{packetsize};
my $tos = $self->{properties}{tos};
my $pings = $self->pings($target);
# do NOT call superclass ... the ping method MUST be overridden
my %upd;
my @args = ();
my $ssh = Net::OpenSSH->new(
$source,
$login ? ( user => $login ) : (),
$password ? ( password => $password ) : (),
timeout => 60
);
if ($ssh->error) {
warn "OpenSSHJunOSPing connecting $source: ".$ssh->error."\n";
return undef;
};
my $tosadd = '';
if ( defined $tos){
$tosadd = " tos $tos";
}
if ( $psource ) {
@output = $ssh->capture("ping $dest count $pings size $bytes source $psource$tosadd");
} else {
@output = $ssh->capture("ping $dest count $pings size $bytes$tosadd");
}
$ssh->system("quit");
my @times = ();
for (@output){
chomp;
/^\d+ bytes from \S+[:,] icmp_seq=\d+ (?:ttl|hlim)=\d+ time=(\d+\.\d+) ms$/ and push @times,$1;
}
@times = map {sprintf "%.10e", $_ / $self->{pingfactor}} sort {$a <=> $b} @times;
return @times;
}
sub probevars {
my $class = shift;
return $class->_makevars($class->SUPER::probevars, {
packetsize => {
_doc => <<DOC,
The (optional) packetsize option lets you configure the packetsize for
the pings sent.
DOC
_default => 100,
_re => '\d+',
_sub => sub {
my $val = shift;
return "ERROR: packetsize must be between 12 and 64000"
unless $val >= 12 and $val <= 64000;
return undef;
},
},
tos => {
_doc => <<DOC,
The (optional) type of service for the pings sent.
DOC
_sub => sub {
my $val = shift;
return "ERROR: tos must be 0-255"
if $val and not ( $val =~ /^\d+$/ and int($val) <= 255);
return undef;
},
},
});
}
sub targetvars {
my $class = shift;
return $class->_makevars($class->SUPER::targetvars, {
_mandatory => [ 'junosuser', 'junospass', 'source' ],
source => {
_doc => <<DOC,
The source option specifies the JunOS device that is going to run the ping commands. This
address will be used for the ssh connection.
DOC
_example => "192.168.2.1",
},
psource => {
_doc => <<DOC,
The (optional) psource option specifies an alternate IP address or
Interface from which you wish to source your pings from. Routers
can have many many IP addresses, and interfaces. When you ping from a
router you have the ability to choose which interface and/or which IP
address the ping is sourced from. Specifying an IP/interface does not
necessarily specify the interface from which the ping will leave, but
will specify which address the packet(s) appear to come from. If this
option is left out the JunOS Device will source the packet automatically
based on routing and/or metrics. If this doesn't make sense to you
then just leave it out.
DOC
_example => "192.168.2.129",
},
junosuser => {
_doc => <<DOC,
The junosuser option allows you to specify a username that has ping
capability on the JunOS Device.
DOC
_example => 'user',
},
junospass => {
_doc => <<DOC,
The junospass option allows you to specify the password for the username
specified with the option junosuser.
DOC
_example => 'password',
},
});
}
1;