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lf_l4_auth.pl
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lf_l4_auth.pl
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#!/usr/bin/perl -w
#-----------------------------------------------------------------------#
# This program is used to create layer-4 connections with #
# IP4 addresses correlated to username/password combinations #
# and get some basic information from LANforge. #
# #
# Written by Candela Technologies Inc. #
#-----------------------------------------------------------------------#
package main;
use strict;
use warnings;
use Carp;
$| = 1;# Un-buffer output
# use lib prepends to @INC, so put lower priority first
# This is before run-time, so cannot condition this with normal 'if' logic.
use lib '/home/lanforge/scripts';
use lib "./";
use Getopt::Long;
use LANforge::Endpoint;
use LANforge::Port;
use LANforge::Utils;
use Net::Telnet ();
use POSIX;
use constant NA => "NA";
use constant NL => "\n";
use constant shelf_num => 1;
# Default values for ye ole cmd-line args.
our $quiet ="yes";
our $resource = 1;
our $lfmgr_host = "localhost";
our $lfmgr_port = 4001;
our $report_timer = 5000;
our $outfile_pref = "l4-out";
our $l4timeout = 1000 * 60 * 1; # minutes
our $url_rate = 600; # urls/10min
our $test_mgr = "l4_connections";
our $port_range = undef;
our $auth_pref = undef;
our $target_url = undef;
our $port_name = undef;
our $first_port = undef;
our $last_port = undef;
our $user_pref = undef;
our $pass_pref = undef;
#-----------------------------------------------------------------------#
# Nothing to configure below here, most likely. #
#-----------------------------------------------------------------------#
our $usage = "\nUsage: $0 --mgr {host-name | IP}
--mgr_port {ip port}
--resource {number}
--report_timer {milliseconds}
--quiet {yes|no}
--timeout {millis} # url timeout in milliseconds ($::l4timeout ms)
--url_rate {per 10 min) # requests per 10 minutes ($::url_rate)
--port_range {first-last} # eg rd0#0-rd0#99 < keep name short!
--auth_pref {1-4 chars,1-4 chars} # u,p appended with last octet: u101 p101
--target_url {http://hostname/path} # http(s) urls will be rewritten to
# http://hostname/path?user=u&pass=p
--outfile_pref {l4-out} # found in /home/lanforge/l4logs
Example:
$0 --port_range rd2#0-rd2#99 --auth_pref u,p \
--target_url 'http://10.99.0.2/index.html'
$0 --mgr 192.168.101.1 --mgr_port 4001 --resource 1 \\
--port_range rd0#0-rd0#25 --report_timer 1000 \\
--auth_pref bob,pas \\
--target_url 'https://10.99.0.2/index.html' \\
--outfile_pref 'req_log' \\
--url_rate 6000 \\
--timeout 120000
(*) first create macvlans with a gateway inside a virtual router
";
GetOptions
(
'quiet|q=s' => \$::quiet,
'mgr|m=s' => \$::lfmgr_host,
'mgr_port|p=i' => \$::lfmgr_port,
'resource|r=i' => \$::resource,
'port_range=s' => \$::port_range,
'report_timer=i' => \$::report_timer,
'auth_pref|ap=s' => \$::auth_pref,
'target_url|u=s' => \$::target_url,
'outfile_pref|op=s' => \$::outfile_pref,
'timeout|to=i' => \$::l4timeout,
'url_rate=i' => \$::url_rate,
) || die("$::usage");
if ( length($::port_range) < 1
|| length($::auth_pref) < 1
|| length($::target_url) < 1) {
die( "missing port_range, auth_pref, or target_url: $::usage");
}
#print "PortRange: $::port_range\n";
($::port_name, $::first_port, $::last_port) = $::port_range =~ /([[:alnum:]]+[^[:alnum:]])(\d+)-[[:alnum:]]+[^[:alnum:]](\d+)/;
#print "PortName[$::port_name] FirstPort[$::first_port] LastPort[$::last_port]\n";
#print "AuthPrefix: $::auth_pref\n";
($::user_pref, $::pass_pref) = $::auth_pref =~ /^\s*(\S+)\s*,\s*(\S+)\s*$/;
#print "UserPrefix[$::user_pref] PassPrefix[$::pass_pref]\n";
if ( !defined($::port_name) || length($::port_name) < 1
|| !defined($::first_port) || length($::first_port)< 1
|| !defined($::last_port) || length($::last_port) < 1
|| !defined($::user_pref) || length($::user_pref) < 1
|| !defined($::pass_pref) || length($::pass_pref) < 1) {
die( "missing port_name, first_port, last_port, user_pref, or pass_pref: $::usage");
}
our ($schema, $host, $path) = $::target_url =~ /\s*(https?):\/\/([^\/]+)(\/?.*?)\s*$/;
#print "schema[$schema] host[$host] path[$path]\n";
#----------------------------------------------------------------------#
# Wait up to 20 seconds when requesting info from LANforge.
our $t = new Net::Telnet(Prompt => '/default\@btbits\>\>/',
Timeout => 20);
$::t->open( Host => $::lfmgr_host,
Port => $::lfmgr_port,
Timeout => 10);
$::t->max_buffer_length(8 * 1024 * 1000); # 8 MB buffer
$::t->waitfor("/btbits\>\>/");
#-----------------------------------------------------------------------#
# compat #
#-----------------------------------------------------------------------#
if ( !defined *LANforge::Utils::fmt_cmd ) {
#*LANforge::Utils::fmt_cmd = sub {
sub LANforge::Utils::fmt_cmd {
my $self = shift;
my $rv;
for my $hunk (@_) {
$rv .= ( $hunk =~ / +/) ? "'$hunk' " : "$hunk ";
}
chomp $rv;
return $rv;
};
}
# Configure our utils.
our $utils = new LANforge::Utils();
$::utils->connect($lfmgr_host, $lfmgr_port);
#-----------------------------------------------------------------------#
# survey ports, complain if they are not present #
#-----------------------------------------------------------------------#
our %port_ips = ();
our %port_quads = ();
our %port_urls = ();
our %port_download= ();
our %port_file = ();
my $method = 1;
my $match = '(IP: \S+)\s';
my $tmp_quad;
my $tmp_ip;
for (my $i = $::first_port; $i <= $::last_port; $i++) {
my $tmp_name = $::port_name.$i;
my @txt = split(/\n/, $::utils->doAsyncCmd("nc_show_port 1 $::resource $tmp_name"));
if (my ($matched) = grep(/$match/, @txt)) {
#print "$::port_name$i: found it: $matched\n";
($tmp_ip) = $matched =~ /^\s+IP: ([0-9.]+)\s+MASK.*$/;
($tmp_quad) = $matched =~ /^\s+IP: [0-9.]+\.([^. ]+)\s+MASK.*$/;
#print "tmp_quad $tmp_quad tmp_ip:$tmp_ip\n";
}
$::port_quads{$i} = $tmp_quad;
$::port_ips{$i} = $tmp_ip;
#print "last_q[$tmp_quad]\n";
}
#-----------------------------------------------------------------------#
# M A I N #
#-----------------------------------------------------------------------#
# for every port, build the following items: #
# - url with user:pass #
# - input file url like "dl $url $outfile-$i #
# - create l4 connection with 'use url file' #
#-----------------------------------------------------------------------#
my $l4path="/home/lanforge/l4-urls";
if ( !-d $l4path ) {
mkdir $l4path || die "cannot make $l4path";
}
our $use_url_file = 1;
for (my $i = $::first_port; $i <= $::last_port; $i++) {
#print "port_quads:".$i."[".$::port_quads{$i}."]\n";
my $tmp_quad = $::port_quads{$i};
#print "tmp_quad[$tmp_quad]\n";
# style for basic/auth
#my $url = $::schema."://".$::user_pref.$tmp_quad.':'.$::pass_pref.$tmp_quad."@".$::host.$::path;
#get style
my $url = $::schema.'://'.$::host.$::path.'?username='.$::user_pref.$tmp_quad.'&password='.$::pass_pref.$tmp_quad;
print "url[$url]\n";
$::port_urls{$i} = $url;
$::port_download{$i} = "dl $url $l4path/$outfile_pref-$port_name$i.txt\n";
$::port_file{$i} = "$l4path/dl_$port_name$i.txt";
}
my $proxy_server = NA;
my $proxy_userpwd = NA;
my $ssl_cert_fname = "ca-bundle.crt";
my $user_agent = NA;
my $proxy_auth_type = "0";
my $http_auth = 3; # | 0x2; for digest
my $dns_cache_to = 60; #default
my $max_speed = 0;
my $block_size = NA;
my $smtp_from = NA;
# create test-mgr
my @testmgrs = split(/\n/, $::utils->doCmd("show_tm all"));
if( my($tmmatches) = grep /$::test_mgr/, @testmgrs) {
#print "test_mgr:$tmmatches\n";
}
else {
$::utils->doCmd("add_tm $::test_mgr");
}
for (my $i = $::first_port; $i <= $::last_port; $i++) {
# create dummy endpoint
my $tmp_ep1 = "L4_$port_name$i";
my $tmp_ep2 = "D_L4_$port_name$i";
my $cmd = $::utils->fmt_cmd( "add_l4_endp", $tmp_ep2,
shelf_num, $::resource, "$port_name$i",
"l4_generic", 0, 0, 0, ' ', ' ');
#print "cmd: $cmd\n";
$::utils->doCmd($cmd);
$cmd = $cmd = "set_endp_flag $tmp_ep2 unmanaged 1";
#print "cmd: $cmd\n";
$::utils->doCmd($cmd);
#sleep(0.2);
# create live endpoint
my $ip_addr = $::port_ips{$i};
open(my $fh, ">", $::port_file{$i} ) || die "unable to create file $::port_file{$i}";
print $fh $::port_download{$i};
close $fh;
# layer4 endpoint
my $url = ($::use_url_file)
? $::port_file{$i}
: $::port_download{$i}
;
$cmd = $::utils->fmt_cmd( "add_l4_endp", $tmp_ep1,
shelf_num, $::resource, "$port_name$i",
"l4_generic", 0, $::l4timeout, $::url_rate,
$url, $proxy_server, $proxy_userpwd,
$ssl_cert_fname, $user_agent, $proxy_auth_type,
$http_auth, $dns_cache_to, $max_speed, $block_size,
$smtp_from, "AUTO" );
#print "cmd: $cmd\n";
$::utils->doCmd($cmd);
#sleep(0.2);
if ($::use_url_file) {
$cmd = $::utils->fmt_cmd("set_endp_flag", "$tmp_ep1", "GetUrlsFromFile", 1);
$::utils->doCmd($cmd);
#sleep(0.2);
}
#$::utils->doCmd("set_cx_report_timer $::test_mgr $tmp_ep1 $report_timer");
#sleep(0.2);
my $cx_name = "CX_$tmp_ep1"; # was CX-L4-
$cmd = $::utils->fmt_cmd("add_cx", $cx_name, $test_mgr, $tmp_ep1, $tmp_ep2);
#print "cmd: $cmd\n";
$::utils->doCmd($cmd);
#sleep(0.2);
$::utils->doCmd("set_cx_report_timer $::test_mgr $cx_name $report_timer");
}
#