nclient

ntop网络监控软件,使用方面

#!/usr/bin/perl
#
# Copyright (C) 2001 Luca Deri <[e-mail]>
#
#   	        http://www.ntop.org/
#
#
# LWP module can be downloaded from www.cpan.org
#
use LWP::Simple;

# $debug = 1;

$ntopUser    = "";
$ntopHost    = "";
$ntopPort    = "";
$passwdFile  = "";
$homeNtopURL = "";

$passwdFile = $ENV{HOME}."/.ntopasswd";


##############################

if($debug) {
    for($i=0; $i<10; $i++) {
	if($ARGV[$i] ne "") {
	    print $i."\t".$ARGV[$i]."\n";
	} else {
	    last;
	}
    }
}

###############################

if($ARGV[0]    =~ /attach/)    { attach();    }
elsif($ARGV[0] =~ /lsdev/)     { lsdev();     }
elsif($ARGV[0] =~ /devinfo/)   { devinfo();   }
elsif($ARGV[0] =~ /lshost/)    { lshost();    }
elsif($ARGV[0] =~ /hostinfo/)  { hostinfo();  }
elsif($ARGV[0] =~ /arp/)       { arp();       }
elsif($ARGV[0] =~ /nbt/)       { nbt();       }
else                           { usage();     }


##############################

sub attach {
# attach  [user:pw@]host:port

    if($ENV{NTOP_ROOT} eq "") {
	print "ERROR: NTOP_ROOT is empty. Set it to user\@ntopHost:ntopPort\n\n";
	usage();
    }

    if($ENV{NTOP_ROOT} =~ /(\S*)@(\S*):(\d*)/) {
	$ntopUser = $1;
	$ntopHost = $2;
	$ntopPort = $3;

	if($debug) {
	    print "user: $ntopUser\n";
	    print "host: $ntopHost\n";
	    print "port: $ntopPort\n";
	}

	if(($1 eq "") || ($2 eq "") ||  ($3 eq "")) {
	    print "ERROR: NTOP_ROOT is not properly defined. Set it to user\@ntopHost:ntopPort\n\n";
	    usage();
	}

	print "Password: ";
	$ntopPwd = <STDIN>; chop($ntopPwd);

	if($debug) { print "Password: '".$ntopPwd."'\n"; }

	$URL = "http://$ntopUser:$ntopPwd\@".$ntopHost.":".$ntopPort."/";

	if($debug) { print "URL: '".$URL."'\n"; }

	$content = get($URL);

	if($content eq "") {
	    print "ERROR: unable to connect to ntop. Please check host:port/user/pw\n";
	    exit(-1);
	} else {
	    print "User $ntopUser successfully connected to $ntopHost:$ntopPort\n";
	}

	umask((umask() & 077) | 077); # -rw-------

	if(open(OUT, "> ".$passwdFile)) {
	    print OUT "http://$ntopUser:$ntopPwd\@".$ntopHost.":".$ntopPort."/\n";
	    close(OUT);
	} else {
	    print "ERROR: unable to create/update file $passwdFile\n";
	    exit(-1);
	}
    } else {
	usage();
    }
}

##############################

sub lsdev {
    getNtopHomeURL();

    $content = get($homeNtopURL."dumpTrafficData.html?language=perl&filter=ifAddr");

    if($debug) { print "Received: $content\n"; }

    if($content eq "") {
	print "ERROR: unable to talk with ntop.\n";
	exit(-1);
    } else {
	%hash = eval($content);

	while (($key, $value) = each %hash) {
	    print $key."\n";
	}
    }
}

##############################

sub unbundle {
    my(%elems) = @_;
    my(@unbundled) = ();
    my($index)= 0;
    while (($key, $value) = each %elems) {
	if($value =~ /^HASH/) {
	     while (($key1, $value1) = each %$value) {
		 if($value1 =~ /^HASH/) {
		     while (($key2, $value2) = each %$value1) {
			 $unbundled[$index][0] = $key.":".$key.":".$key2;
			 $unbundled[$index][1] = $value2;	
			 $index++;
		     }
		 } else {
		     $unbundled[$index][0] = $key.":".$key1;
		     $unbundled[$index][1] = $value1;
		     $index++;
		 }
	     }
	} else {
	    $unbundled[$index][0] = $key;
	    $unbundled[$index][1]= $value;
	    $index++;
	}
    }

    return(@unbundled);
}

##############################

sub devinfo {
    if($ARGV[1] eq "") { usage(); }

    getNtopHomeURL();

    $content = get($homeNtopURL."dumpTrafficData.html?language=perl&key=$ARGV[1]");

    if($debug) { print "Received: $content\n"; }

    if($content eq "") {
	print "ERROR: unable to talk with ntop.\n";
	exit(-1);
    } else {
	%hash = eval($content);

	if(!$hash{$ARGV[1]}) {
	    print "ERROR: unknown device $ARGV[1].\n";
	    exit(-1);
	}

	$elems = $hash{$ARGV[1]};
	%elems = %$elems;
	@allelems = unbundle(%elems);

	foreach $i (0 .. $#allelems) {
	    printf("%-30s\t%s\n", $allelems[$i][0], $allelems[$i][1]);
	}
    }
}

##############################

sub lshost {
    getNtopHomeURL();

    $content = get($homeNtopURL."dumpData.html?language=perl&filter=ethAddressString");

    if($debug) { print "Received: $content\n"; }

    if($content eq "") {
	print "ERROR: unable to talk with ntop.\n";
	exit(-1);
    } else {
	%hash = eval($content);

	while (($key, $value) = each %hash) {
	    print $key."\n";
	}
    }
}

##############################

sub hostinfo {
    if($ARGV[1] eq "") { usage(); }

    getNtopHomeURL();

    $content = get($homeNtopURL."dumpData.html?language=perl&key=$ARGV[1]");

    if($debug) { print "Received: $content\n"; }

    if($content eq "") {
	print "ERROR: unable to talk with ntop.\n";
	exit(-1);
    } else {
	%hash = eval($content);

	if(!$hash{$ARGV[1]}) {
	    print "ERROR: unknown device $ARGV[1].\n";
	    exit(-1);
	}

	$elems = $hash{$ARGV[1]};
	%elems = %$elems;
	@allelems = unbundle(%elems);

	foreach $i (0 .. $#allelems) {
	    printf("%-30s\t%s\n", $allelems[$i][0], $allelems[$i][1]);
	}
    }
}

##############################

sub arp {
    getNtopHomeURL();

    $content = get($homeNtopURL."dumpData.html?language=perl&filter=ethAddressString");

    if($debug) { print "Received: $content\n"; }

    if($content eq "") {
	print "ERROR: unable to talk with ntop.\n";
	exit(-1);
    } else {
	%hash = eval($content);

	while (($key, $dummy) = each %hash) {
	    my($macAddress) = $hash{$key}{ethAddressString};

	    if(($key ne "")
	       && ($macAddress ne "")
	       && (!($key =~ /:/))) {
		printf("%-20s\t%-20s\n", $key, $macAddress);
	    }
	}
    }

}


##############################

sub nbt {
    getNtopHomeURL();

    $content = get($homeNtopURL."dumpData.html?language=perl&filter=nbHostName");

    if($debug) { print "Received: $content\n"; }

    if($content eq "") {
	print "ERROR: unable to talk with ntop.\n";
	exit(-1);
    } else {
	%hash = eval($content);

	while (($key, $dummy) = each %hash) {
	    my($nbHostName) = $hash{$key}{nbHostName};

	    if(($key ne "") && ($nbHostName ne "")) {
		printf("%-20s\t%-20s\n", $key, $nbHostName);
	    }
	}
    }
}


##############################

sub getNtopHomeURL {
    if(open(IN, $passwdFile)) {
	$homeNtopURL = <IN>;
	chop($homeNtopURL);
	close(IN);
	if($homeNtopURL eq "") {
	    print "ERROR: problems while reading $passwdFile. Did you attach to a running ntop?\n";
	    exit(-1);
	}
    } else {
	print "ERROR: unable to read file $passwdFile. Did you attach to a running ntop?\n";
	exit(-1);
    }
}


##############################

sub usage {

print "
    nClient <command> [ <parameters> ]

    Available commands:
       attach            attach to a running ntop
       lsdev             show ntop available network devices
       devinfo <device>  show info about the specified device
       lshost <host>     show ntop's known host
       hostinfo          show info about the specified host
       arp               show ntop's ARP table
       nbt               show ntop's NetBIOS hosts


    How to use nClient:
    1) start a copy of ntop at ntopHost:ntopPort
    2) Set the environment variable NTOP_ROOT to
       user\@ntopHost:ntopPort
       
       For instance (on tcsh):
       setenv NTOP_ROOT luca\@dummy.ntop.org:3000
    3) nClient attach
    4) nClient <insert your command here>
    5) Have fun!

    ======================================

    (C) 2001 - Luca Deri <deri\@ntop.org>\n";

    exit(0);
}