118 lines
3.6 KiB
Python
118 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# 2020 Nico Schottelius (nico-cdist at schottelius.org)
|
|
#
|
|
# This file is part of cdist.
|
|
#
|
|
# cdist is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# cdist 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
#
|
|
|
|
import logging
|
|
import sys
|
|
from datetime import datetime
|
|
|
|
log = logging.getLogger("scan")
|
|
|
|
|
|
def run(scan, args):
|
|
# We run each component in a separate process since they
|
|
# must not block on each other.
|
|
processes = []
|
|
|
|
if 'trigger' in args.mode:
|
|
t = scan.Trigger(interfaces=args.interface,
|
|
sleeptime=args.trigger_delay)
|
|
t.start()
|
|
processes.append(t)
|
|
log.debug("Trigger started")
|
|
|
|
if 'scan' in args.mode:
|
|
s = scan.Scanner(
|
|
autoconfigure='config' in args.mode,
|
|
interfaces=args.interface,
|
|
name_mapper=args.name_mapper)
|
|
s.start()
|
|
processes.append(s)
|
|
log.debug("Scanner started")
|
|
|
|
for process in processes:
|
|
process.join()
|
|
|
|
|
|
def list(scan, args):
|
|
s = scan.Scanner(interfaces=args.interface, name_mapper=args.name_mapper)
|
|
hosts = s.list()
|
|
|
|
# A full IPv6 addresses id composed of 8 blocks of 4 hexa chars +
|
|
# 6 colons.
|
|
ipv6_max_size = 8 * 4 + 10
|
|
date_max_size = len(datetime.now().strftime(scan.datetime_format))
|
|
name_max_size = 25
|
|
|
|
print("{} | {} | {} | {}".format(
|
|
'name'.ljust(name_max_size),
|
|
'address'.ljust(ipv6_max_size),
|
|
'last seen'.ljust(date_max_size),
|
|
'last configured'.ljust(date_max_size)))
|
|
print('=' * (name_max_size + 3 + ipv6_max_size + 2 * (3 + date_max_size)))
|
|
for host in hosts:
|
|
last_seen = host.last_seen()
|
|
if last_seen:
|
|
last_seen = last_seen.strftime(scan.datetime_format)
|
|
else:
|
|
last_seen = '-'
|
|
|
|
last_configured = host.last_configured()
|
|
if last_configured is not None:
|
|
last_configured = last_configured.strftime(scan.datetime_format)
|
|
else:
|
|
last_configured = '-'
|
|
|
|
print("{} | {} | {} | {}".format(
|
|
host.name(default='-').ljust(name_max_size),
|
|
host.address().ljust(ipv6_max_size),
|
|
last_seen.ljust(date_max_size),
|
|
last_configured.ljust(date_max_size)))
|
|
|
|
|
|
# CLI processing is defined outside of the main scan class to handle
|
|
# non-available optional scapy dependency (instead of crashing mid-flight).
|
|
def commandline(args):
|
|
log.debug(args)
|
|
|
|
# Check if we have the optional scapy dependency available.
|
|
try:
|
|
import cdist.scan.scan as scan
|
|
except ModuleNotFoundError:
|
|
log.error('cdist scan requires scapy to be installed. Exiting.')
|
|
sys.exit(1)
|
|
|
|
# Set default operation mode.
|
|
if not args.mode:
|
|
# By default scan and trigger, but do not call any action.
|
|
args.mode = ['scan', 'trigger', ]
|
|
|
|
if 'config' in args.mode and args.name_mapper is None:
|
|
print('--name-mapper must be specified for scanner config mode.',
|
|
file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
# Print known hosts and exit is --list is specified - do not start
|
|
# the scanner.
|
|
if args.list:
|
|
list(scan, args)
|
|
else:
|
|
run(scan, args)
|