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|
#! /usr/bin/perl
use strict;
use warnings;
use DBI;
use Net::OpenSSH;
use Net::Telnet;
use Data::Dumper;
use FileHandle;
use JSON;
package nms;
use base 'Exporter';
our @EXPORT = qw(switch_disconnect switch_connect_ssh switch_connect_dlink switch_exec switch_exec_json switch_timeout db_connect);
BEGIN {
require "config.pm";
eval {
require "config.local.pm";
};
}
sub db_connect {
my $connstr = "dbi:Pg:dbname=" . $nms::config::db_name;
$connstr .= ";host=" . $nms::config::db_host unless (!defined($nms::config::db_host));
my $dbh = DBI->connect($connstr,
$nms::config::db_username,
$nms::config::db_password, {AutoCommit => 0})
or die "Couldn't connect to database";
return $dbh;
}
sub switch_connect_ssh($) {
my ($ip) = @_;
my $ssh = Net::OpenSSH->new($ip,
user => $nms::config::tacacs_user,
password => $nms::config::tacacs_pass,
master_opts => [ "-o", "StrictHostKeyChecking=no" ]);
my ($pty, $pid) = $ssh->open2pty({stderr_to_stdout => 1})
or die "unable to start remote shell: " . $ssh->error;
my $dumplog = FileHandle->new;
$dumplog->open(">>/tmp/dumplog-queue") or die "/tmp/dumplog-queue: $!";
#$dumplog->print("\n\nConnecting to " . $ip . "\n\n");
my $inputlog = FileHandle->new;
$inputlog->open(">>/tmp/inputlog-queue") or die "/tmp/inputlog-queue: $!";
#$inputlog->print("\n\nConnecting to " . $ip . "\n\n");
my $telnet = Net::Telnet->new(-fhopen => $pty,
-timeout => $nms::config::telnet_timeout,
-dump_log => $dumplog,
-input_log => $inputlog,
-prompt => '/.*\@[a-z0-9-]+[>#] /',
-telnetmode => 0,
-cmd_remove_mode => 1,
-output_record_separator => "\r");
$telnet->waitfor(-match => $telnet->prompt,
-errmode => "return")
or die "login failed: " . $telnet->lastline;
$telnet->cmd("set cli screen-length 0");
return { telnet => $telnet, ssh => $ssh, pid => $pid, pty => $pty };
}
sub switch_connect_dlink($) {
my ($ip) = @_;
my $dumplog = FileHandle->new;
$dumplog->open(">>/tmp/dumplog-queue") or die "/tmp/dumplog-queue: $!";
$dumplog->print("\n\nConnecting to " . $ip . "\n\n");
my $inputlog = FileHandle->new;
$inputlog->open(">>/tmp/inputlog-queue") or die "/tmp/inputlog-queue: $!";
$inputlog->print("\n\nConnecting to " . $ip . "\n\n");
my $conn = new Net::Telnet( Timeout => $nms::config::telnet_timeout,
Dump_Log => $dumplog,
Input_Log => $inputlog,
Errmode => 'return',
Prompt => '/[\S\-\_]+[#>]/');
my $ret = $conn->open( Host => $ip);
if (!$ret || $ret != 1) {
return (undef);
}
# Handle login with and without password
print "Logging in without password\n";
$conn->waitfor('/User ?Name:/');
$conn->print('admin');
my (undef, $match) = $conn->waitfor('/DGS-3100#|Password:/');
die 'Unexpected prompt after login attempt' if (not defined $match);
if ($match eq 'Password:') {
$conn->print('gurbagurba'); # Dette passordet skal feile
$conn->waitfor('/User ?Name:/');
$conn->print($nms::config::tacacs_user);
my (undef, $match) = $conn->waitfor('/DGS-3100#|Password:/');
if ($match eq 'Password:') {
$conn->cmd($nms::config::tacacs_pass);
}
}
return { telnet => $conn };
}
# Send a command to switch and return the data recvied from the switch
sub switch_exec {
my ($cmd, $conn, $print) = @_;
sleep 1; # don't overload the D-Link
# Send the command and get data from switch
my @data;
if (defined($print)) {
$conn->print($cmd);
return;
} else {
@data = $conn->cmd($cmd);
print "ERROR: " . $conn->errmsg . "\n" if $conn->errmsg;
}
return @data;
}
sub switch_exec_json($$) {
my ($cmd, $conn) = @_;
my @json = switch_exec("$cmd | display json", $conn);
pop @json; # Remove the banner at the end of the output
return ::decode_json(join("", @json));
}
sub switch_timeout {
my ($timeout, $conn) = @_;
$conn->timeout($timeout);
return ('Set timeout to ' . $timeout);
}
sub switch_disconnect($) {
my ($struct) = @_;
my $conn = $struct->{telnet};
$conn->close();
if ($struct->{pid}) {
waitpid($struct->{pid}, 0);
}
}
# A few utilities to convert from SNMP binary address format to human-readable.
sub convert_mac {
return join(':', map { sprintf "%02x", $_ } unpack('C*', shift));
}
sub convert_ipv4 {
return join('.', map { sprintf "%d", $_ } unpack('C*', shift));
}
sub convert_ipv6 {
return join(':', map { sprintf "%x", $_ } unpack('n*', shift));
}
sub convert_addr {
my ($data, $type) = @_;
if ($type == 1) {
return convert_ipv4($data);
} elsif ($type == 2) {
return convert_ipv6($data);
} else {
die "Unknown address type $type";
}
}
# Convert raw binary SNMP data to list of bits.
sub convert_bytelist {
return split //, unpack("B*", shift);
}
sub convert_lldp_caps {
my ($caps_data, $data) = @_;
my @caps = convert_bytelist($caps_data);
my @caps_names = qw(other repeater bridge ap router telephone docsis stationonly);
for (my $i = 0; $i < scalar @caps && $i < scalar @caps_names; ++$i) {
$data->{'cap_enabled_' . $caps_names[$i]} = $caps[$i];
}
}
1;
|
