path: root/Monitoring/nagios/plugins/nmap_discovery_runner.py

#!/usr/bin/env python
#Copyright (C) 2009-2010 :
#    Gabes Jean, naparuba@gmail.com
#    Gerhard Lausser, Gerhard.Lausser@consol.de
#    Gregory Starck, g.starck@gmail.com
#
#This file is part of Shinken.
#
#Shinken is free software: you can redistribute it and/or modify
#it under the terms of the GNU Affero General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.
#
#Shinken is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU Affero General Public License for more details.
#
#You should have received a copy of the GNU Affero General Public License
#along with Shinken.  If not, see <http://www.gnu.org/licenses/>.

#sudo nmap 192.168.0.1 -T4 -O --traceroute -oX toto.xml

import optparse
import sys
import os
import tempfile
import subprocess

try:
    # xml.etree.ElementTree is new in Python 2.5
    from xml.etree.ElementTree import ElementTree
except ImportError:
    sys.exit("This script needs the Python ElementTree module. Please install it")

VERSION = '0.1'

parser = optparse.OptionParser(
    "%prog [options] -t nmap scanning targets",
    version="%prog " + VERSION)

parser.add_option('-t', '--targets', dest="targets", 
                  help="NMap scanning targets.")
parser.add_option('-v', '--verbose', dest="verbose", action='store_true',
                  help="Verbose output.")

targets = []
opts, args = parser.parse_args()
if not opts.targets:
    parser.error("Requires at least one nmap target for scanning (option -t/--targets")
else:
    targets.append(opts.targets)

if not opts.verbose:
    verbose = False
else:
    verbose = True

if args:
    targets.extend(args)

print "Got our target", targets

def debug(txt):
    if verbose:
        print txt

# Says if a host is up or not
def is_up(h):
    status = h.find('status')
    state = status.attrib['state']
    return state == 'up'



class DetectedHost:
    def __init__(self):
        self.ip = ''
        self.mac_vendor = ''
        self.host_name = ''

        self.os_possibilities = []
        self.os = ('', '')
        self.open_ports = []

        self.parent = ''


    # Keep the first name we've got
    def set_host_name(self, name):
        if self.host_name == '':
            self.host_name = name


    # Get a identifier for this host
    def get_name(self):
        if self.host_name != '':
            return self.host_name
        if self.ip != '':
            return self.ip
        return None

    # We look for the host VMWare
    def is_vmware_esx(self):
        # If it's not a virtual machine bail out
        if self.mac_vendor != 'VMware':
            return False
        # If we got all theses ports, we are quite ok for
        # a VMWare host
        needed_ports = [22, 80, 443, 902, 903, 5989]
        for p in needed_ports:
            if p not in self.open_ports:
                # find one missing port, not a VMWare host
                return False
        # Ok all ports are found, we are a ESX :)
        return True

    # Says if we are a virtual machine or not
    def is_vmware_vm(self):
        # special case : the esx host itself
        if self.is_vmware_esx():
            return False
        # Else, look at the mac vendor
        return self.mac_vendor == 'VMware'


    # Fill the different os possibilities
    def add_os_possibility(self, os, osgen, accuracy):
        self.os_possibilities.append( (os, osgen, accuracy) )


    # We search if our potential parent is present in the
    # other detected hosts. If so, set it as my parent
    def look_for_parent(self, all_hosts):
        self.parents = []
        parent = self.parent
        debug("Look for my parent %s -> %s" % (self.get_name(), parent))
        # Ok, we didn't find any parent
        # we bail out
        if parent == '':
            return
        for h in all_hosts:
            debug("Is it you? %s" % h.get_name())
            if h.get_name() == parent:
                debug("Houray, we find our parent %s -> %s" % (self.get_name(), h.get_name()))
                self.parents.append(h.get_name())




    # Look at ours oses and see which one is the better
    def compute_os(self):
        self.os_name = 'Unknown OS'
        self.os_version = 'Unknown Version'

        # bailout if we got no os :(
        if len(self.os_possibilities) == 0:
            return

        max_accuracy = 0
        for (os, osgen, accuracy) in self.os_possibilities:
            if accuracy > max_accuracy:
                max_accuracy = accuracy

        # now get the entry with the max value
        for (os, osgen, accuracy) in self.os_possibilities:
            print "Can be", (os, osgen, accuracy)
            if accuracy == max_accuracy:
                self.os = (os, osgen)

        print "Try to match", self.os

        #Ok, unknown os... not good
        if self.os == ('', ''):
            return

        map = {('Windows', '2000') : 'windows',
               ('Windows', '2003') : 'windows',
               ('Windows', '7') : 'windows',
               ('Windows', 'XP') : 'windows',
               # ME? you are a stupid moron!
               ('Windows', 'Me') : 'windows',
               ('Windows', '2008') : 'windows',
               # that's a good boy :)
               ('Linux', '2.6.X') : 'linux',
               ('Linux', '2.4.X') : 'linux',
               # HPUX? I think you didn't choose...
               ('HP-UX', '11.X') : 'hpux',
               ('HP-UX', '10.X') : 'hpux',
               }

        if self.os not in map:
            return
        
        self.os_name = map[self.os]
        self.os_version = self.os[1]
#        self.templates.append(t)
#
#        # Look for VMWare VM or hosts
#        if self.h.is_vmware_vm():
#            self.templates.append('vmware-vm')
#        # Now is an host?
#        if self.h.is_vmware_esx():
#            self.templates.append('vmware-host')


    # Return the string of the 'discovery' items
    def get_discovery_output(self):
        r = []
        r.append('%s::isup=1' % self.get_name())
        r.append(self.get_discovery_system())
        r.append(self.get_discovery_macvendor())
        op = self.get_discovery_ports()
        if op != '':
            r.append(op)
        par = self.get_discovery_parents()
        if par != '':
            r.append(par)
        fqdn = self.get_dicovery_fqdn()
        if fqdn != '':
            r.append(fqdn)
        ip = self.get_discovery_ip()
        if ip != '':
            r.append(ip)
        return r
        

    # for system output
    def get_discovery_system(self):
        r = '%s::os=%s' % (self.get_name(), self.os_name)+'\n'
        r += '%s::osversion=%s' % (self.get_name(), self.os_version)
        return r
        
    def get_discovery_macvendor(self):
        return '%s::macvendor=%s' % (self.get_name(), self.mac_vendor)

    def get_discovery_ports(self):
        if self.open_ports == []:
            return ''
        return '%s::openports=%s' % (self.get_name(), ','.join([str(p) for p in self.open_ports]))

    def get_discovery_parents(self):
        if self.parents == []:
            return ''
        return '%s::parents=%s' % (self.get_name(), ','.join(self.parents))

    def get_dicovery_fqdn(self):
        if self.host_name == '':
            return ''
        return '%s::fqdn=%s' % (self.get_name(), self.host_name)

    def get_discovery_ip(self):
        if self.ip == '':
            return ''
        return '%s::ip=%s' % (self.get_name(), self.ip)


(_, tmppath) = tempfile.mkstemp()

print "propose a tmppath", tmppath

cmd = "sudo nmap %s -T4 -O --traceroute -oX %s" % (' '.join(targets) , tmppath)
print "Launching command,", cmd
try:
    nmap_process = subprocess.Popen(
        cmd,
        stdout=subprocess.PIPE, stderr=subprocess.PIPE,
        close_fds=True, shell=True)
except OSError , exp:
    print "Debug : Error in launching command:", cmd, exp
    sys.exit(2)
    
print "Try to communicate"
(stdoutdata, stderrdata) = nmap_process.communicate()

if nmap_process.returncode != 0:
    print "Error : the nmap return an error : '%s'" % stderrdata
    sys.exit(2)

print "Got it", (stdoutdata, stderrdata)

xml_input = tmppath

tree = ElementTree()
try:
    tree.parse(xml_input)
except IOError, exp:
    print "Error opening file '%s' : %s" % (xml_input, exp)
    sys.exit(2)

hosts = tree.findall('host')
debug("Number of hosts : %d" % len(hosts))


all_hosts = []

for h in hosts:
    # Bypass non up hosts
    if not is_up(h):
        continue
    
    dh = DetectedHost()

    # Now we get the ipaddr and the mac vendor
    # for future VMWare matching
    #print h.__dict__
    addrs = h.findall('address')
    for addr in addrs:
        #print "Address", addr.__dict__
        addrtype = addr.attrib['addrtype']
        if addrtype == 'ipv4':
            dh.ip = addr.attrib['addr']
        if addrtype == "mac":
            if 'vendor' in addr.attrib:
                dh.mac_vendor = addr.attrib['vendor']


    # Now we've got the hostnames
    host_names = h.findall('hostnames')
    for h_name in host_names:
        h_names = h_name.findall('hostname')
        for h_n in h_names:
            #print 'hname', h_n.__dict__
            #print 'Host name', h_n.attrib['name']
            dh.set_host_name(h_n.attrib['name'])


    # Now print the traceroute
    traces = h.findall('trace')
    for trace in traces:
        #print trace.__dict__
        hops = trace.findall('hop')
        #print "Number of hops", len(hops)
        distance = len(hops)
        if distance >= 2:
            for hop in hops:
                ttl = int(hop.attrib['ttl'])
                #We search for the direct father
                if ttl == distance-1:
                    #print ttl
                    #print "Super hop", hop.__dict__
                    # Get the host name if possible, if not
                    # take the IP
                    if 'host' in hop.attrib:
                        dh.parent = hop.attrib['host']
                    else:
                        dh.parent = hop.attrib['ipaddr']


    # Now the OS detection
    ios = h.find('os')
    #print os.__dict__
    cls = ios.findall('osclass')
    for c in cls:
        #print "Class", c.__dict__
        family = c.attrib['osfamily']
        accuracy = c.attrib['accuracy']
        if 'osgen' in c.attrib:
            osgen = c.attrib['osgen']
        else:
            osgen = None
        #print "Type:", family, osgen, accuracy
        dh.add_os_possibility(family, osgen, accuracy)
    # Ok we can compute our OS now :)
    dh.compute_os()


    # Now the ports :)
    allports = h.findall('ports')
    for ap in allports:
        ports = ap.findall('port')
        for p in ports:
            #print "Port", p.__dict__
            p_id = p.attrib['portid']
            s = p.find('state')
            #print s.__dict__
            state = s.attrib['state']
            if state == 'open':
                dh.open_ports.append(int(p_id))

    #print dh.__dict__
    all_hosts.append(dh)
    #print "\n\n"
    


for h in all_hosts:
    name = h.get_name()
    if not name:
        continue
    
    debug("Doing name %s" % name)
    #path = os.path.join(output_dir, name+'.discover')
    #print "Want path", path
    #f = open(path, 'wb')
    #cPickle.dump(h, f)
    #f.close()
    debug(str(h.__dict__))
    # And generate the configuration too
    h.look_for_parent(all_hosts)
    #c.fill_system_conf()
    #c.fill_ports_services()
    #c.fill_system_services()
#    c.write_host_configuration()
    #print "Host config", c.get_cfg_for_host()
#    c.write_services_configuration()
    #print "Service config"
    #print c.get_cfg_for_services()
    #print c.__dict__
    print '\n'.join(h.get_discovery_output())
    #print "\n\n\n"
    

# Try to remove the temppath
try:
    os.unlink(tmppath)
except Exception:
    pass