python_vpn_audit/vpn_audit/vpn_cisco.bak.py

894 lines
39 KiB
Python

import os
from functools import partial
from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor
from scrapli import Scrapli
# from scrapli.driver import GenericDriver
# from scrapli.driver.core import IOSXEDriver
from pymongo import InsertOne, DeleteMany, ReplaceOne, UpdateOne, UpdateMany
import re
import json
def cisco_version(collection, command_output, device_record, connection):
print('run cisco_version')
def device_audit():
return {'os_flavour': operating_system, 'image': image, 'os_version': version, 'chassis': chassis, 'serial': serial}
id = device_record['_id']
output = command_output['output']
if not output == 'error':
if len(output.genie_parse_output()) >0:
print(f'genie parser method')
parsed = output.genie_parse_output()
operating_system = parsed['version']['os']
image = parsed['version']['system_image'].split(':')[1].replace('/', '')
version = parsed['version']['version']
chassis = parsed['version']['chassis']
serial = parsed['version']['chassis_sn']
record = device_audit()
# print(record)
filter = {'_id': id}
result = collection.update_one(filter, {'$set': record}, upsert=True)
return result
else:
print(f'manual parse method not written for this command')
#### scrape 1)
# 'show isakmp sa detail'
# {'c_id': '20681', 'local_ip': '10.227.184.157', 'p1_ivrf': 'none', 'peer_ip': '10.229.4.74', 'p1_dh_group': '14', 'p1_encr_algo': 'aes', 'p1_hash_algo': 'sha', 'p1_auth_type': 'psk', 'p1_status': 'ACTIVE'}
def cisco_vpn_phase1(collection, command_output, device_record, connection):
print('\ncisco_vpn_phase1')
def process_p1(p1_dict, idx):
global peer_count
global p1_records
c_id = str(p1_dict['isakmp_stats']['IPv4'][idx]['c_id'])
local_ip = p1_dict['isakmp_stats']['IPv4'][idx]['local_ip']
peer_ip = p1_dict['isakmp_stats']['IPv4'][idx]['remote_ip']
encr_algo = p1_dict['isakmp_stats']['IPv4'][idx]['encr_algo']
hash_algo = p1_dict['isakmp_stats']['IPv4'][idx]['hash_algo']
auth_type = p1_dict['isakmp_stats']['IPv4'][idx]['auth_type']
dh_group = str(p1_dict['isakmp_stats']['IPv4'][idx]['dh_group'])
status = p1_dict['isakmp_stats']['IPv4'][idx]['status']
ivrf = p1_dict['isakmp_stats']['IPv4'][idx]['ivrf'] if 'ivrf' in p1_dict['isakmp_stats']['IPv4'][idx] else 'none'
p1_record = {'c_id': c_id, 'local_ip': local_ip, 'p1_ivrf': ivrf, 'peer_ip': peer_ip, 'p1_dh_group': dh_group, 'p1_encr_algo': encr_algo, 'p1_hash_algo': hash_algo, 'p1_auth_type': auth_type, 'p1_status': status }
# print(f'genie p1 {p1_records}')
p1_records.append(p1_record)
peer_count += 1
print('phase1 processed %d\r'%peer_count, end="")
device_name = device_record['DeviceName']
output = command_output['output']
device_table = collection['temp'][device_name] # create/use-existing temp subcollection
if not output == 'error':
p1_dict = output.genie_parse_output()
# print(json.dumps(p1_dict, indent=4))
if len(p1_dict) >0:
global peer_count
peer_count = 0
global p1_records
p1_records = []
p1_scrape_idx = [t for t in p1_dict['isakmp_stats']['IPv4']]
n_cores = os.cpu_count()
partial_function = partial(process_p1, p1_dict)
# with ThreadPoolExecutor(max_workers=1) as executor: # debug
with ThreadPoolExecutor(max_workers=n_cores) as executor:
executor.map(partial_function, p1_scrape_idx)
print(f'phase1 processed {peer_count}')
# write to db
if len(p1_records) >0:
requests = []
for i in p1_records:
record = i
# requests.append(InsertOne(record))
filter = {'c_id': record['c_id']}
requests.append(UpdateMany(filter, {'$set': record}, upsert=True))
result = device_table.bulk_write(requests)
# print(result.bulk_api_result)
return result
else:
print('phase1 no tunnel records')
else:
print('error returning command, check network connectivity')
#### scrape 2)
# 'show crypto session remote {ip} detail'
# {'local_ip': '10.225.112.42', 'local_port': '500', 'c_id': '11907', 'ipsec_flow': ['permit 47 host 10.225.112.42 host 10.227.36.18'], 'crypto_session_interface': 'Tunnel6', 'session_status': 'UP-ACTIVE', 'peer_ip': '10.227.36.18', 'peer_port': '500', 'p2_fvrf': 'none', 'peer_vpn_id': '10.227.36.18'}
# correlate to scrape 1) with key 'c_id'
def cisco_crypto_session(collection, command_output, device_record, connection):
print('\ncisco_crypto_session')
def process_session(session):
# debug with single thread
# print('\n##########')
# print(session)
if not 'Invalid input detected at' in session: # occurs with no match on peer ip
# wipe all lines before first match of 'Interface: ', this match is used to delimit lines of text into subsequent interface scrapes
scrape = ""
tag_found = False
for line in session.split('\n'):
if not tag_found:
if 'Interface: ' in line:
scrape += f'{line}\n'
tag_found = True
else:
scrape += f'{line}\n'
# split scrapes into multiple interfaces, each interface entry may have many sessions
interfaces = []
try:
if len(scrape) >0:
for line in scrape.split('\n'): # this can fail but only on a huge scrape and hard to see, mep-shared-rri-agg09
if 'Interface: ' in line:
interfaces.append(f'{line}\n')
else:
interfaces[-1] += f'{line}\n'
except Exception as e:
print(f'failed to process scrape: {e}')
#print(scrape)
pass
# print(f'retrieved crypto session interface entries {len(interfaces)}')
# loop interfaces, loop session attributes
global task_count
global session_records
for i in interfaces:
#print(i)
peer_record_dict = {}
session_record_dict = {}
#global task_count
all_sess = ""
all_sess_found = False
for line in i.split('\n'):
if 'Interface: ' in line:
crypto_session_interface = line.split(' ')[1]
peer_record_dict.update({'crypto_session_interface': crypto_session_interface})
if 'Profile: ' in line:
p1_profile = line.split(' ')[1]
peer_record_dict.update({'p1_profile': p1_profile})
if 'Session status: ' in line:
session_status = line.split('Session status: ')[1]
peer_record_dict.update({'session_status': session_status})
if 'Peer: ' in line:
peer_ip = line.split(' ')[1]
peer_port = line.split(' ')[3]
p2_fvrf = line.split(' ')[5].replace('(', '').replace(')', '')
# p1_vrf = line.split(' ')[7]
peer_record_dict.update({'peer_ip': peer_ip, 'peer_port': peer_port, 'p2_fvrf': p2_fvrf})
if 'Phase1_id: ' in line:
peer_vpn_id = line.lstrip().split(' ')[1].replace('(', '').replace(')', '')
peer_record_dict.update({'peer_vpn_id': peer_vpn_id})
# split all lines from 'IKEv1 SA: ' to end
if not all_sess_found:
if any(ike in line for ike in ['IKEv1 SA: ', 'IKE SA: ']):
all_sess += f'{line}\n'
all_sess_found = True
elif 'Session ID: ' in line:
pass
else:
all_sess += f'{line}\n'
# breakout each session, this can be P1 only with 'IKEv1 SA: ' or P1 + P2 with 'IKEv1 SA: ' and 'IPSEC FLOW: '
all_sess_pairs = []
for line in all_sess.split('\n'):
if any(ike in line for ike in ['IKEv1 SA: ', 'IKE SA: ']):
all_sess_pairs.append(f'{line}\n')
else:
all_sess_pairs[-1] += f'{line}\n'
for asp in all_sess_pairs:
#print(asp)
ipsec_flow =[]
for line in asp.split('\n'):
# if 'IKEv1 SA: ' in line: # fails for older cisco
if any(ike in line for ike in ['IKEv1 SA: ', 'IKE SA: ']):
local_ip = line.lstrip().split(' ')[3].split('/')[0]
local_port = line.lstrip().split(' ')[3].split('/')[1]
session_record_dict.update({'local_ip': local_ip, 'local_port': local_port})
if 'connid:' in line:
c_id = line.lstrip().split(' ')[1].split(':')[1]
session_record_dict.update({'c_id': c_id})
if 'IPSEC FLOW: ' in line:
acl = line.lstrip().split('FLOW: ')[1]
ipsec_flow.append(acl)
if len(ipsec_flow) >0:
session_record_dict.update({'ipsec_flow': ipsec_flow})
# merge peer record component with each session record
session_record_dict.update(peer_record_dict)
# print(session_record_dict)
# check for required fields for complete/valid session record
if all(m in session_record_dict for m in ['local_ip', 'peer_ip', 'c_id']):
task_count += 1
print('session interface entries processed %d\r'%task_count, end="")
session_records.append(session_record_dict)
# init vars, start
device_name = device_record['DeviceName']
device_table = collection['temp'][device_name] # create/use-existing temp subcollection
peer_ips = []
sessions = []
session_count = 0
global session_records
session_records = []
global task_count
task_count = 0
# get scrapes
with Scrapli(**connection) as conn:
peers = conn.send_command('show crypto session brief')
for line in peers.result.split('\n'):
if len(line) >0 and not any(exclude in line for exclude in ['ivrf = ', 'Peer ', 'Status: ', 'No IKE']):
# print(line)
format_line = ' '.join(line.split())
ip = format_line.split(' ')[0]
# print(ip)
peer_ips.append(format_line.split(' ')[0])
if len(peer_ips) >0:
print(f'crypto session count {len(peer_ips)}')
for ip in peer_ips:
session_count += 1
print('lookup crypto sessions %d\r'%session_count, end="")
session = conn.send_command(f'show crypto session remote {ip} detail')
# print(session.result)
sessions.append(session.result)
# process scrapes
print(f'lookup crypto sessions {len(sessions)}')
if len(sessions) >0:
n_cores = os.cpu_count()
partial_function = partial(process_session)
#with ThreadPoolExecutor(max_workers=1) as executor: # debug
with ThreadPoolExecutor(max_workers=n_cores) as executor:
executor.map(partial_function, sessions)
print(f'session interface entries processed {task_count}')
# write to db
if len(session_records) >0:
requests = []
for i in session_records:
record = i
filter = {'c_id': record['c_id']}
requests.append(UpdateMany(filter, {'$set': record}, upsert=True))
result = device_table.bulk_write(requests)
print(result.bulk_api_result)
return result
#### scrape 3)
# 'show crypto ipsec sa peer {p}'
# {'p2_interface': 'Tunnel6', 'local_ip': '10.225.112.42', 'peer_ip': '10.225.56.110', 'peer_port': '500', 'protected_vrf': 'none', 'pfs': 'N', 'p2_encr_algo': 'esp-256-aes', 'p2_hash_algo': 'esp-sha-hmac', 'p2_status': 'ACTIVE', 'crypto_map': 'Tunnel6-head-0'}
# correlate to (scrape 1) + scrape 2)) with keys 'local_ip' 'peer_ip' 'peer_port'
def cisco_vpn_phase2(collection, command_output, device_record, connection):
print('\ncisco_vpn_phase2')
def process_p2_scrapes(record):
global p2_scrapes
global empty_p2_scrapes
global p2_records
interfaces = []
if not len(record) >0:
empty_p2_scrapes += 1
else:
for line in record.split('\n'):
if 'interface: ' in line:
interfaces.append(f'{line}\n')
else:
interfaces[-1] += f'{line}\n'
# print(f'manual scrape tunnel interface count {len(interfaces)}')
for int in interfaces:
# reset interface vars
for va in ['p2_interface', 'local_ip']:
if va in locals():
del va
# get interface vars
for line in int.split('\n'):
if 'interface' in line:
p2_interface = line.split(' ')[1]
if 'local addr' in line:
local_ip = line.split('addr ')[1]
# strip up to 'protected vrf:' for ivrf loop
intf = ""
tag_found = False
for line in int.split('\n'):
if not tag_found:
if 'protected vrf:' in line:
intf += f'{line}\n'
tag_found = True
else:
intf += f'{line}\n'
# loop vrfs
vrfs = []
for line in intf.split('\n'):
if 'protected vrf:' in line:
vrfs.append(f'{line}\n')
else:
vrfs[-1] += f'{line}\n'
for v in vrfs:
# reset ivrf vars
for va in ['peer_ip', 'peer_port', 'vrf', 'pfs', 'transform', 'p2_encr_algo', 'p2_hash_algo', 'status', 'crypto_map']:
if va in locals():
del va
peer_ip_l = []
peer_port_l = []
vrf_l = []
pfs_l = []
transform_l = []
status_l = []
crypto_map_l = []
p2_record_dict = {}
# get vrf vars
for line in v.split('\n'):
if 'current_peer' in line:
peer_ip_l.append(line.lstrip(' ').split(' ')[1])
peer_port_l.append(line.lstrip(' ').split(' ')[3])
if 'PFS' in line:
pfs_l.append(line.lstrip(' ').split(' ')[2].split(',')[0].lower())
if 'transform' in line:
transform_l.append(line.lstrip(' ').split('transform: ')[1].split(' ,')[0])
if 'crypto map: ' in line:
crypto_map_l.append(line.lstrip(' ').split('crypto map: ')[1])
if 'Status' in line:
status_l.append(line.split('Status: ')[1].split('(')[0])
if 'protected vrf' in line:
vrf_l.append(line.split('protected vrf: ')[1].replace('(', '').replace(')', ''))
# write vrf vars to record dict
p2_record_dict.update({'p2_interface': p2_interface})
p2_record_dict.update({'local_ip': local_ip})
if len(peer_ip_l) >0:
#peer_ip = peer_ip_l[0]
p2_record_dict.update({'peer_ip': peer_ip_l[0]})
if len(peer_port_l) >0:
#peer_port = peer_port_l[0]
p2_record_dict.update({'peer_port': peer_port_l[0]})
if len(vrf_l) >0:
#vrf = vrf_l[0]
p2_record_dict.update({'protected_vrf': vrf_l[0]})
if len(pfs_l) >0:
#pfs = pfs_l[0].upper()
p2_record_dict.update({'pfs': pfs_l[0].upper()})
# else:
# pfs = 'N'
if len(transform_l) >0:
transform = transform_l[0]
#p2_encr_algo = transform.split(' ')[0]
p2_record_dict.update({'p2_encr_algo': transform.split(' ')[0]})
#p2_hash_algo = transform.split(' ')[1]
p2_record_dict.update({'p2_hash_algo': transform.split(' ')[1]})
if len(status_l) >0:
#status = status_l[0]
p2_record_dict.update({'p2_status': status_l[0]})
if len(crypto_map_l) >0:
#crypto_map = crypto_map_l[0]
p2_record_dict.update({'crypto_map': crypto_map_l[0]})
# print(p2_record_dict)
# check for required fields for complete/valid p2 record
if all(include in p2_record_dict for include in ['local_ip', 'peer_ip', 'peer_port']):
# print(p2_record_dict)
p2_records.append(p2_record_dict)
p2_scrapes += 1
print('phase2 scrape processed %d\r'%p2_scrapes, end="")
def get_p2_scrapes(peers, connection):
global scrape_count
peer_commands = [f'show crypto ipsec sa peer {p}' for p in set(peers)]
print(f'phase2 peer commands prepared {len(peer_commands)}')
p2scrapes = []
if len(peers) >0:
try:
with Scrapli(**connection) as conn:
for c in peer_commands:
p2scrape = conn.send_command(c)
p2scrapes.append(p2scrape)
scrape_count += 1
print('lookup phase2 peers %d\r'%scrape_count, end="")
return p2scrapes
except Exception as e:
print(f'exception_type: {type(e).__name__}')
# pass
print('phase2 failback parser method error collecting scrapes, possible incomplete records for this device')
return p2scrapes
else:
print('phase2 failback parser method error, no phase1 peers/tunnels')
return p2scrapes
# init vars
device_name = device_record['DeviceName']
device_table = collection['temp'][device_name] # create/use-existing temp subcollection
global scrape_count
scrape_count = 0
global p2_scrapes
p2_scrapes = 0
global empty_p2_scrapes
empty_p2_scrapes = 0
global p2_records
p2_records = []
# lookup all peer_ip
peer_ip_query = device_table.find({"peer_ip": { "$exists": True }}, {"peer_ip":1, "_id":0})
peers = [r['peer_ip'] for r in peer_ip_query]
# get p2 scrapes
result = get_p2_scrapes(peers, connection)
print(f'lookup phase2 peers {scrape_count}')
# process p2 scrapes
if len(result) >0:
scrape_results = [s.result for s in result]
n_cores = os.cpu_count()
partial_function = partial(process_p2_scrapes)
# with ThreadPoolExecutor(max_workers=1) as executor: # debug
with ThreadPoolExecutor(max_workers=n_cores) as executor:
executor.map(partial_function, scrape_results)
print(f'phase2 scrape processed {p2_scrapes}')
print(f'empty phase2 scrapes {empty_p2_scrapes}')
# write to db
if len(p2_records) >0:
requests = []
for i in p2_records:
record = i
filter = {'local_ip': record['local_ip'], 'peer_ip': record['peer_ip'], 'peer_port': record['peer_port']}
requests.append(UpdateMany(filter, {'$set': record}, upsert=True))
result = device_table.bulk_write(requests)
print(result.bulk_api_result)
return result
#### scrape 4)
# {'crypto_map': 'Tunnel6-head-0', 'peer_ip': '10.227.112.50', 'pfs': 'N', 'transform_sets': [{'name': 'TS-AES256-SHA', 'p2_encr_algo': 'esp-256-aes', 'p2_hash_algo': 'esp-sha-hmac'}, {'name': 'TS-3DES-SHA', 'p2_encr_algo': 'esp-3des', 'p2_hash_algo': 'esp-sha-hmac'}], 'crypto_map_interface': ['Tunnel6'], 'RRI_enabled': False, 'default_p2_3des': False}
# correlate to (scrape 1) + scrape 2) + scrape 3)) with keys 'peer_ip' 'crypto_map'
def cisco_crypto_map(collection, command_output, device_record, connection):
print('\ncisco_crypto_map')
def process_cryptomaps(cryptomap):
# print(cryptomap)
# loop lines in cryptomap entry
global crypto_map_count
global cryptomap_records
tfs_found = False
int_found = False
tfset = []
crypto_map_interface = []
cryptomap_record_dict = {}
for line in cryptomap.split('\n'):
if 'Crypto Map "' in line: # older variant of ios
crypto_map = line.split(' ')[2].replace('"', '')
cryptomap_record_dict.update({'crypto_map': crypto_map})
if 'Crypto Map IPv4 "' in line: # newer variant of ios
crypto_map = line.split(' ')[3].replace('"', '')
cryptomap_record_dict.update({'crypto_map': crypto_map})
if 'ISAKMP Profile: ' in line:
p1_profile = line.split(' ')[2]
cryptomap_record_dict.update({'p1_profile': p1_profile})
if 'Current peer: ' in line:
peer_ip = line.split(' ')[2]
cryptomap_record_dict.update({'peer_ip': peer_ip})
# RRI devices use dynamic crypto map templates, the name of the crypto map may not match the template name CM-BML-RRI != CDM-BML-RRI
if 'dynamic (created from dynamic map ' in line:
# dynamic (created from dynamic map CDM-BML-RRI/200)
crypto_map_template = line.split('dynamic map ')[1].split('/')[0]
cryptomap_record_dict.update({'crypto_map_template': crypto_map_template})
if 'PFS (Y/N): ' in line:
pfs = line.split(' ')[2].upper()
cryptomap_record_dict.update({'pfs': pfs})
if not tfs_found:
if 'Transform sets=' in line:
tfs_found = True
pass
elif ' } ,' in line:
tfs_name = line.split(' ')[0].split(':')[0]
tfs_encr_algo = line.replace(' ', ' ').split(' ')[2]
tfs_hash_algo = line.replace(' ', ' ').split(' ')[3]
tfset.append({'name': tfs_name, 'p2_encr_algo': tfs_encr_algo, 'p2_hash_algo': tfs_hash_algo})
else:
tfs_found = False
if 'Reverse Route Injection Enabled' in line:
cryptomap_record_dict.update({'RRI_enabled': True})
if not int_found:
if 'Interfaces using crypto map ' in line:
int_found = True
pass
else:
if len(line) >0:
crypto_map_interface.append(line)
# add possible list items to cryptomap record
if len(tfset) >0:
cryptomap_record_dict.update({'transform_sets': tfset})
if len(crypto_map_interface) >0:
cryptomap_record_dict.update({'crypto_map_interface' : crypto_map_interface})
# catch absence of RRI
if 'RRI_enabled' not in cryptomap_record_dict:
cryptomap_record_dict.update({'RRI_enabled': False})
# # DISABLE - transform_sets is dynamic, not the best source of truth
# # determine if 1st/default P2 transform set is 3des
# if 'transform_sets' in cryptomap_record_dict:
# if '3des' in cryptomap_record_dict['transform_sets'][0]['p2_encr_algo'].lower():
# cryptomap_record_dict.update({'default_p2_3des': True})
# else:
# cryptomap_record_dict.update({'default_p2_3des': False})
# # print(cryptomap_record_dict)
# check for required fields for complete/valid cryptomap record (if the cryptomap has no peer_ip it has no use)
if all(include in cryptomap_record_dict for include in ['peer_ip', 'crypto_map']):
# print(cryptomap_record_dict)
cryptomap_records.append(cryptomap_record_dict)
crypto_map_count += 1
print('cryptomaps processed %d\r'%crypto_map_count, end="")
# start, init vars
global crypto_map_count
crypto_map_count = 0
global cryptomap_records
cryptomap_records = []
device_name = device_record['DeviceName']
device_table = collection['temp'][device_name] # create/use-existing temp subcollection
output = command_output['output']
# print(output.result)
if output == 'error':
print('parse failure, output too large for screen scrape, consider a command targetted by peer')
elif output == 'compound':
print('cisco_crypto_map is not a compound command')
else:
# strip everything up to first 'Crypto Map IPv4 '
scrape = ""
tag_found = False
for line in output.result.split('\n'):
if not tag_found:
#if 'Crypto Map IPv4 ' in line:
if 'Crypto Map ' in line:
scrape += f'{line}\n'
tag_found = True
else:
scrape += f'{line}\n'
# print(scrape)
# split document into cryptomap entries
cryptomaps = []
crypto_map_found_count = 0
try:
if len(scrape) >0:
for line in scrape.split('\n'): # this can fail but only on a huge scrape which is hard to see - mep-shared-rri-agg09
# if 'Crypto Map IPv4 ' in line: # will not work on older cisco
if 'Crypto Map ' in line:
cryptomaps.append(f'{line}\n')
crypto_map_found_count += 1
print('lookup crypto maps %d\r'%crypto_map_found_count, end="")
elif 'Crypto Map: ' in line: # these lines list the isakmp profile for the ipsec cryptomap profile, shorthand output that is not required
pass
else:
cryptomaps[-1] += f'{line.lstrip()}\n'
print(f'lookup crypto maps {crypto_map_found_count}')
except Exception as e:
print(f'failed to process cryptomap scrape: {e}')
# print(scrape)
pass
# process cryptomap scrapes
n_cores = os.cpu_count()
partial_function = partial(process_cryptomaps)
# with ThreadPoolExecutor(max_workers=1) as executor: # debug
with ThreadPoolExecutor(max_workers=n_cores) as executor:
executor.map(partial_function, cryptomaps)
print(f'cryptomaps processed {crypto_map_count}')
# write to db
if len(cryptomap_records) >0:
requests = []
for i in cryptomap_records:
record = i
filter = {'peer_ip': record['peer_ip'], 'crypto_map': record['crypto_map']}
requests.append(UpdateMany(filter, {'$set': record}, upsert=True))
result = device_table.bulk_write(requests)
print(result.bulk_api_result)
return result
def cisco_isakmp_policy(collection, command_output, device_record, connection):
print('\ncisco_isakmp_policy')
device_name = device_record['DeviceName']
ip = device_record['IPAddress']
output = command_output['output']
if not output == 'error':
scrape = ""
tag_found = False
isakmp_policy = []
# split scrape by policies
for line in output.result.split('\n'):
# print(line)
if not tag_found:
if 'Global IKE policy' in line:
tag_found = True
else:
scrape += f'{line}\n'
# print(scrape)
# split policies by suite
suite = []
if len(scrape) >0:
for line in scrape.split('\n'):
if 'Protection suite of priority ' in line:
suite.append(f'{line}\n')
else:
suite[-1] += f'{line}\n'
# get suite attributes
for s in suite:
suite_dict = {}
# print(s)
for line in s.split('\n'):
#print(line)
sline = line.lstrip()
if 'Protection suite of priority' in sline:
priority = sline.split(' ')[4]
# print(priority)
suite_dict.update({'priority': priority})
if 'encryption algorithm:' in sline:
if 'Advanced Encryption Standard' in sline:
enc_algo = 'aes'
elif 'Three key triple DE' in sline:
enc_algo = '3des'
elif 'Data Encryption Standard' in sline:
enc_algo = 'des'
else:
enc_algo = 'no_match'
if enc_algo != 'no_match':
enc_kb = [int(x) for x in sline[sline.find("(")+1:sline.find(")")].split() if x.isdigit()]
enc_kb = str(enc_kb[0]) if len(enc_kb) >0 else ''
if len(enc_kb) >0:
enc_algo = enc_algo + '_' + str(enc_kb)
# print(enc_algo)
suite_dict.update({'enc_algo': enc_algo})
if 'hash algorithm:' in sline:
if 'Secure Hash Standard 2' in sline:
hash_algo = 'sha2'
elif 'Secure Hash Standard' in sline:
hash_algo = 'sha'
elif 'Message Digest 5' in sline:
hash_algo = 'md5'
else:
hash_algo = 'no_match'
if hash_algo != 'no_match':
hash_kb = [int(x) for x in sline[sline.find("(")+1:sline.find(")")].split() if x.isdigit()]
hash_kb = str(hash_kb[0]) if len(hash_kb) >0 else ''
if len(hash_kb) >0:
hash_algo = hash_algo + '_' + str(hash_kb)
# print(hash_algo)
suite_dict.update({'hash_algo': hash_algo})
if 'authentication method:' in sline:
if 'Pre-Shared Key' in sline:
auth_type = 'psk'
else:
auth_type = 'no_match'
if 'Diffie-Hellman group:' in sline:
dh_group = sline.split('Diffie-Hellman group:')[1].split(' ')[0].lstrip().replace('#', '')
dh_group_kb = [int(x) for x in sline[sline.find("(")+1:sline.find(")")].split() if x.isdigit()]
dh_group_kb = str(dh_group_kb[0]) if len(dh_group_kb) >0 else ''
if len(dh_group_kb) >0:
dh_group = dh_group + '_' + str(dh_group_kb)
# print(dh_group)
suite_dict.update({'dh_group': dh_group})
# print(suite_dict)
isakmp_policy.append(suite_dict)
# get isakmp policy precedence
if len(isakmp_policy) >0:
# print(isakmp_policy)
print(f'isakmp policy entry count {len(isakmp_policy)}')
update = {'isakmp_policy': isakmp_policy}
# isakmp_policy.append({'priority': '0', 'enc_algo': '3des', 'hash_algo': 'sha', 'dh_group': '14_2048'}) # debug
# find highest priority isakmp policy enc_algo
highest_priority_policy = sorted([int(x['priority']) for x in isakmp_policy])[0]
highest_priority_policy_algo = [x['enc_algo'] for x in isakmp_policy if x['priority'] == str(highest_priority_policy)]
if 'des' in highest_priority_policy_algo[0]:
# print(highest_priority_policy_algo[0])
update.update({'isakmp_policy_default_p1_3des': True})
else:
update.update({'isakmp_policy_default_p1_3des': False})
# update _default table with device isakmp policy result
# for i in update['isakmp_policy']:
# print(i)
# print(update['isakmp_policy_default_p1_3des'])
filter = {'DeviceName': device_name}
result = collection.update_one(filter, {'$set': update}, upsert=True)
# print(dir(result))
# print(result.acknowledged) # need to print the full insert update upsert stuff
return result
else:
print(f'isakmp policy entry count {len(isakmp_policy)}')
def cisco_transform_set(collection, command_output, device_record, connection):
print('\ncisco_transform_set')
def process_transform_set(scrape):
# print(scrape)
tfs_found = False
tfset = []
for line in scrape.split('\n'):
sline = line.lstrip()
if not tfs_found:
if 'Transform sets=' in sline:
tfs_found = True
pass
elif ' } ,' in sline:
tfs_name = sline.split(' ')[0].split(':')[0]
tfs_encr_algo = sline.replace(' ', ' ').split(' ')[2]
tfs_hash_algo = sline.replace(' ', ' ').split(' ')[3]
tfset.append({'name': tfs_name, 'p2_encr_algo': tfs_encr_algo, 'p2_hash_algo': tfs_hash_algo})
else:
tfs_found = False
return tfset
## init vars
update_src = []
device_name = device_record['DeviceName']
device_type = device_record['DeviceType']
device_table = collection['temp'][device_name]
requests = []
## dmvpn lookup ordered transform set
# print('dmvpn')
if device_type in ["IP-VPNHUB", "IP-VCSR-HUB"]:
tunnel_interfaces = device_table.distinct('p2_interface')
print(f'tunnel interfaces {tunnel_interfaces}')
if len(tunnel_interfaces) >0:
for t in tunnel_interfaces:
interface_name = t
with Scrapli(**connection) as conn:
interface = conn.send_command(f'show interface {interface_name}')
parsed = interface.genie_parse_output()
# print(json.dumps(parsed, indent=4))
if 'tunnel_profile' in parsed[interface_name]:
ipsec_profile_name = parsed[interface_name]['tunnel_profile']
elif 'Tunnel protection via IPSec' in interface.result:
# some ios genie outputs are not fully parsed, failback to manual parse
for line in interface.result.split('\n'):
if 'Tunnel protection via IPSec' in line:
ipsec_profile_name = [a for a in line[line.find("(")+1:line.find(")")].split()][1]
# print(ipsec_profile_name)
if 'ipsec_profile_name' in locals():
with Scrapli(**connection) as conn:
ipsec_profile = conn.send_command(f'show crypto ipsec profile {ipsec_profile_name}')
# print(ipsec_profile.result)
transform_set = process_transform_set(ipsec_profile.result)
match_field = 'p2_interface'
match_field_value = t
update_src.append({'match_field': match_field, 'match_field_value': match_field_value, 'transform_set': transform_set})
## rri lookup ordered transform set
# print('rri')
if device_type in ["IP-VPNAGG", "IP-P2PAGG"]:
crypto_map_templates = device_table.distinct('crypto_map_template')
# print(crypto_map_templates)
if len(crypto_map_templates) >0:
for t in crypto_map_templates:
with Scrapli(**connection) as conn:
crypto_map = conn.send_command(f'show crypto dynamic-map tag {t}')
# print(crypto_map.result)
transform_set = process_transform_set(crypto_map.result)
match_field = 'crypto_map_template'
match_field_value = t
update_src.append({'match_field': match_field, 'match_field_value': match_field_value, 'transform_set': transform_set})
## build db update requests
# print(json.dumps(update_src, indent=4))
if len(update_src) >0:
for r in update_src:
query = {r['match_field']: r['match_field_value']}
# print(query)
object_ids = [d for d in device_table.distinct('_id', query)]
# print(object_ids)
query = { "_id" : { "$in" : object_ids } }
update = {'ordered_transform_set': r['transform_set']}
requests.append(UpdateMany(query, {'$set': update}, upsert=True))
# print(requests)
## bulk update collection documents with ordered_transform_sets
if len(requests) >0:
dst_result = device_table.bulk_write(requests)
print(dst_result.bulk_api_result)
return dst_result
def triple_des_check(collection, command_output, device_record, connection):
print('\ntriple_des_check')
## owing to the age of mongodb 3.0.15 some filters/operators are not available, the following queries could otherwise be merged and done in bulk in the query language with a huge performance uptick
# "$arrayElemAt" "$first" "$slice", "$regex" also does not honour read ahead negative match (?!3des)
# https://stackoverflow.com/questions/29664097/what-is-the-syntax-for-mongodb-query-for-boolean-values
# https://www.tutorialspoint.com/get-the-first-element-in-an-array-and-return-using-mongodb-aggregate
def p2_encr_algo_check(collection, triple_des_match = True):
if triple_des_match:
#regex_statement = {'$regex': '.*3des.*', '$options': 'i'}
regex_statement = re.compile('(?i).*3DES.*')
else:
regex_statement = {'$not': re.compile('(?i).*3DES.*')}
result = collection.aggregate([
{"$match": {"ordered_transform_set": {"$exists": True}}},
{"$match": {'p2_encr_algo': regex_statement }},
{"$project": {"_id": 1}}
])
matched_doc_ids = [d['_id'] for d in result]
# print(dumps(matched_doc_ids, indent=4))
return matched_doc_ids
def first_ordered_transform_set_check(collection, doc_ids, triple_des_match = True):
matched_doc_ids = []
if triple_des_match:
regex_statement = re.compile('(?i).*3DES.*')
else:
regex_statement = {'$not': re.compile('(?i).*3DES.*')}
for doc_id in doc_ids:
result = collection.aggregate([
{"$match": { "_id" : doc_id }},
{"$unwind": "$ordered_transform_set"},
{"$limit": 1 },
{"$match": {'ordered_transform_set.p2_encr_algo': regex_statement}},
{"$project": {"_id": 1}}
])
for result_id in [d['_id'] for d in result]:
matched_doc_ids.append(result_id)
# print(dumps(matched_doc_ids, indent=4))
return matched_doc_ids
def tdes_requests_builder(requests, doc_ids, p2_default_3des, spoke_p2_default_3des, spoke_p2_algo_preference):
if len(doc_ids) >0:
update = {}
update.update({'p2_default_3des': p2_default_3des})
if spoke_p2_default_3des != 'unset':
update.update({'spoke_p2_default_3des': spoke_p2_default_3des})
update.update({'spoke_p2_algo_preference': spoke_p2_algo_preference})
# print(json.dumps(update, indent=4))
query = { "_id" : { "$in" : doc_ids } }
requests.append(UpdateMany(query, {'$set': update}, upsert=True))
return requests
## init vars
device_name = device_record['DeviceName']
device_table = collection['temp'][device_name]
requests = []
#### p2_encr_algo 3des
triple_des_match = True
tdes_doc_ids = p2_encr_algo_check(device_table, triple_des_match)
## 1st ordered_transform_set 3des
triple_des_match = True
tdes_tdes_ids = first_ordered_transform_set_check(device_table, tdes_doc_ids, triple_des_match)
# p2_default_3des = True / spoke_p2_default_3des = unset / spoke_p2_algo_preference = unknown
requests = tdes_requests_builder(requests, tdes_tdes_ids, True, 'unset', 'unknown')
## 1st ordered_transform_set NOT 3des
triple_des_match = False
tdes_ntdes_ids = first_ordered_transform_set_check(device_table, tdes_doc_ids, triple_des_match)
# p2_default_3des False / spoke_p2_default_3des True / spoke_p2_algo_preference = 3des
requests = tdes_requests_builder(requests, tdes_ntdes_ids, False, True, '3des')
#### p2_encr_algo NOT 3des
triple_des_match = False
ntdes_doc_ids = p2_encr_algo_check(device_table, triple_des_match)
## 1st ordered_transform_set 3des
triple_des_match = True
ntdes_tdes_ids = first_ordered_transform_set_check(device_table, ntdes_doc_ids, triple_des_match)
# p2_default_3des True / spoke_p2_default_3des False / spoke_p2_algo_preference = not 3des
requests = tdes_requests_builder(requests, ntdes_tdes_ids, True, False, 'not 3des')
## 1st ordered_transform_set NOT 3des
triple_des_match = False
ntdes_ntdes_ids = first_ordered_transform_set_check(device_table, ntdes_doc_ids, triple_des_match)
# p2_default_3des False / spoke_p2_default_3des unset / spoke_p2_algo_preference = unknown
requests = tdes_requests_builder(requests, ntdes_ntdes_ids, False, 'unset', 'unknown')
## bulk update collection documents with ordered_transform_sets
if len(requests) >0:
result = device_table.bulk_write(requests)
print(result.bulk_api_result)
return result