mirror of
https://github.com/Telecominfraproject/wlan-lanforge-scripts.git
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Scripts: portal-check does some basic evaluation on a station to see if it can resolve DNS, ping its gateway, and make a web request
This commit is contained in:
Jed Reynolds
224
portal-check.pl
Executable file
224
portal-check.pl
Executable file
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#!/usr/bin/perl -w
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=pod
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-------------------------------------------------------------------------------
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Use this script to survey a captive portal station:
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* check DNS settings via dig
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* check initial page redirect with curl
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## (C) 2017, Candela Technologies Inc. support@candelatech.com
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-------------------------------------------------------------------------------
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=cut
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package main;
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use strict;
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use warnings;
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use diagnostics;
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use Carp;
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#$SIG{ __DIE__ } = sub { Carp::confess( @_ ) };
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#$SIG{ __WARN__ } = sub { Carp::confess( @_ ) };
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use POSIX qw(ceil floor);
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use Scalar::Util; #::looks_like_number;
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use Getopt::Long;
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use Socket;
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# Un-buffer output
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$| = 1;
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use Cwd qw(getcwd);
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my $cwd = getcwd();
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# this is pedantic necessity for the following use statements
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if ( $cwd =~ q(.*LANforge-Server\scripts$)) {
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use lib '/home/lanforge/scripts'
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}
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else {
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use lib '/home/lanforge/scripts';
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}
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use List::Util qw(first);
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use LANforge::Endpoint;
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use LANforge::Port;
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use LANforge::Utils;
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use Net::Telnet ();
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my $usage = qq($0 [--mgr {host-name | IP}]
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[--mgr_port {ip port}] # use if on non-default management port
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[--resource {resource}] # use if multiple lanforge systems; defaults to 1
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[--quiet { yes | no }] # debug output; -q
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[--log_cli] # enables CLI command printing to STDOUT
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# same effect when setting env var LOG_CLI=STDOUT
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[--radio {name}] # radio parent of sta1000 e.g. wiphy0
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[--sta {name}] # station to use e.g. sta1000 or wlan0
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[--ssid {ssid}] # ssid to set station on
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[--upstream {dev}] # e.g. eth1 # attempt to ping upstream port from station
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[--verbose|v]
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);
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if (@ARGV < 2) {
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print $usage;
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exit 0;
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}
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my $help;
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our $lfmgr_host = "localhost";
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my $lfmgr_port = 4001;
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our $resource = 1;
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our $quiet = "yes";
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our $sta_wiphy = "wiphy0";
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our $ssid = "";
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our $sta;
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our $upstream_port = "";
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my $log_cli;
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our $verbose = 0;
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GetOptions
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(
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'mgr|m=s' => \$::lfmgr_host,
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'mgr_port|p=i' => \$lfmgr_port,
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'resource|r=i' => \$::resource,
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'quiet|q=s' => \$::quiet,
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'radio|o=s' => \$::sta_wiphy,
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'ssid|s=s' => \$::ssid,
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'upstream|t=s' => \$::upstream_port,
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'log_cli=s{0,1}' => \$log_cli, # use ENV{LOG_CLI} elsewhere
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'sta|w=s' => \$::sta,
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'verbose|v=i' => \$::verbose,
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'help|?' => \$help,
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) || (print($usage) && exit(1));
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if ($help) {
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print($usage) && exit(0);
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}
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$SIG{ __DIE__ } = sub { Carp::confess( @_ ) };
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if ($::quiet eq "0") {
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$::quiet = "no";
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}
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elsif ($::quiet eq "1") {
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$::quiet = "yes";
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}
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# Open connection to the LANforge server.
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if (defined $log_cli) {
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if ($log_cli ne "unset") {
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# here is how we reset the variable if it was used as a flag
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if ($log_cli eq "") {
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$ENV{'LOG_CLI'} = 1;
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}
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else {
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$ENV{'LOG_CLI'} = $log_cli;
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}
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}
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}
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our $t = new Net::Telnet(Prompt => '/default\@btbits\>\>/',
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Timeout => 20);
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$t->open(Host => $lfmgr_host,
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Port => $lfmgr_port,
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Timeout => 10);
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$t->waitfor("/btbits\>\>/");
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# Configure our utils.
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our $utils = new LANforge::Utils();
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$utils->telnet($t); # Set our telnet object.
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if ($utils->isQuiet()) {
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if (defined $ENV{'LOG_CLI'} && $ENV{'LOG_CLI'} ne "") {
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$utils->cli_send_silent(0);
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}
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else {
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$utils->cli_send_silent(1); # Do not show input to telnet
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}
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$utils->cli_rcv_silent(1); # Repress output from telnet
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}
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else {
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$utils->cli_send_silent(0); # Show input to telnet
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$utils->cli_rcv_silent(0); # Show output from telnet
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}
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$utils->log_cli("# $0 ".`date "+%Y-%m-%d %H:%M:%S"`);
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# this is the --show_port options ("")
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my @port_txt = ();
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my $port_mac = '';
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my $port_dev = '';
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my $port_ip = '';
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my $port_dns = '';
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my $port_gateway = '';
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if ((defined $::sta) && ("$sta" ne "")) {
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@port_txt = split("\n", $utils->doAsyncCmd("nc_show_port 1 $::resource $::sta"));
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}
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my @likely = ();
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if ($::verbose > 0) {
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print "--------------------------------------------\n";
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print join("\n", @port_txt);
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print "--------------------------------------------\n";
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}
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@likely = grep {/MAC: .* DEV: .*/} @port_txt;
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die("Unable to find port named $::sta")
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if (!@likely);
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if (@likely) {
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($port_mac) = $likely[0] =~ /MAC: ([^ ]+) /;
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$port_mac = ''
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if (!defined $port_ip);
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($port_dev) = $likely[0] =~ /DEV: ([^ ]+) /;
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$port_dev = ''
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if (!defined $port_ip);
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}
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@likely = grep {/IP: .* MASK:/} @port_txt;
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if (@likely) {
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($port_ip) = $likely[0] =~ /IP: ([^ ]+) /;
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$port_ip = ''
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if (!defined $port_ip);
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}
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@likely = grep {/DNS Servers:/} @port_txt;
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if (@likely) {
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if ($verbose) {
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print "LIKELY DNS SERVERS:\n";
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print join("\n", @likely)."\n";
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}
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($port_dns) = $likely[0] =~ /DNS Servers: (.*)$/;
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$port_dns =''
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if (!defined $port_dns)
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}
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@likely = grep {/GW: /} @port_txt;
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if (@likely) {
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($port_gateway) = $likely[0] =~ /GW: ([^ ]+) /;
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$port_gateway = ''
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if (!defined $port_gateway);
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}
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print qq(Port name: $sta IP: $port_ip; DNS: $port_dns; GW: $port_gateway;\n\n);
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if ($port_ip eq '') {
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print "\nNo tests possible, bye\n";
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exit(1);
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}
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if ($port_gateway ne '') {
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print "\nChecking gateway: $port_gateway\n";
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print("ping -c2 -w2 -t2 -I $port_ip $port_gateway \n");
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system("ping -c2 -w2 -t2 -I $port_ip $port_gateway");
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}
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else {
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print "Not checking gateway\n";
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}
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if ($port_dns ne '') {
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my @dns = split(',', $port_dns);
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if (@dns) {
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print "\nChecking DNS: $dns[0]\n";
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print("\nping -c2 -w2 -t2 -I $port_ip $dns[0]\n");
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system("ping -c2 -w2 -t2 -I $port_ip $dns[0]");
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print("\ndig -b $port_ip -q www.slashdot.org \@$dns[0]\n");
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system("dig -b $port_ip -q www.slashdot.org \@$dns[0]");
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}
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}
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else {
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print "Not checking DNS\n";
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}
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print "\nChecking redirect to http://1.1.1.1/ ...\n";
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print("\n/home/lanforge/local/bin/curl -svLki -4 -m30 --connect-timeout 15 --interface $port_dev --localaddr $port_ip --dns-interface $port_dev --dns-ipv4-addr $port_ip http://1.1.1.1/\n");
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system("/home/lanforge/local/bin/curl -svLki -4 -m30 --connect-timeout 15 --interface $port_dev --localaddr $port_ip --dns-interface $port_dev --dns-ipv4-addr $port_ip http://1.1.1.1/");
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print "\n\nChecking redirect to http://www.slashdot.org/ ...\n";
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print("\n/home/lanforge/local/bin/curl -svLki -4 -m30 --connect-timeout 15 --interface $port_dev --localaddr $port_ip --dns-interface $port_dev --dns-ipv4-addr $port_ip http://www.slashdot.org/\n");
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system("/home/lanforge/local/bin/curl -svLki -4 -m30 --connect-timeout 15 --interface $port_dev --localaddr $port_ip --dns-interface $port_dev --dns-ipv4-addr $port_ip http://www.slashdot.org/");
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print "\n\n";
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#
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