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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# kpov_random_helpers should be imported by add_assignment.py
instructions = {
'si':u"""
Postavi dva navidezna računalnika - SimpleArbiter z diska SimpleArbiterVPN ter
VPNClient, ki jima nastavite pravilne mrežne nastavitve (medsebojna povezava in povezava na splet).
Na oba računalnika namestite OpenVPN in program za nadzor nad virtualnimi napravami (s katerim kreirate napravo tap).
Strežnik SimpleArbiterVPN naj generira skupno skrivnost (*.key), ki jo na VPNCLient uporabite skupaj z konfiguracijsko
datoteko za OpenVPN povezavo. Nato poskrbite, da bo VPNClient na navideznem omrežju prek NFS omogočil
dostop do imenika /home/test/IME_IMENIKA, pri čemer IME_IMENIKA preberite na SimpleArbiter.
V ta imenik skopirajte datoteke, ki so prek SMB dostopne na SimpleArbiter.
"""
}
computers = {
'maliNetworkManager': {
'disks': [
{ 'name': 'maliNetworkManager',
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'maliBrezNetworkManager': {
'disks': [
{ 'name': 'maliBrezNetworkManager',
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'SimpleArbiter': {
'disks': [
{ 'name': 'simpleArbiterDhcp',
# attempt automount
},
#{ 'name': 'CDROM',
# 'options': {'readonly': True},
# 'parts': [{'dev': 'b1', 'path': '/cdrom'}],
#},
],
'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}],
'flavor': 'm1.tiny',
'config_drive': False
}
}
networks = {
'net1': {
'public': False
},
'test-net': {
'public': True
}
}
params_meta = {
'IP_NM': {
'descriptions': {
'si': 'Naslov maliNetworkManager'
},
'w': False,
'public': True,
'type': 'IP',
'generated': True
},
'DNS_NM': {
'descriptions': {
'si': 'DNS za maliNetworkManager'
},
'w': False,
'public': True,
'type': 'IP',
'generated': True
},
'IP_static': {
'descriptions': {
'si': 'Naslov maliBrezNetworkManager'
},
'w': False,
'public': True,
'type': 'IP',
'generated': True
},
'DNS_static': {
'descriptions': {
'si': 'DNS za maliBrezNetworkManager'
},
'w': False,
'public': True,
'type': 'IP',
'generated': True
},
}
def task(IP_NM, DNS_NM, IP_static, DNS_static):
import pxssh # Used to set up an SSH connection to a remote machine
import pexpect # Allows the script to spawn a child application and control it as if a human were typing commands
# the necessary things we need to check if the task was performed correctly
results = dict()
# The login params (these must be used on the machines!)
peer_user = 'student'
peer_passwd = 'vaje'
# Sets up the SSH connections to the machines
sA = pxssh.pxssh()
sB = pxssh.pxssh()
# Logs in to the machines with the default login params
sA.login(IP_NM, peer_user, peer_passwd)
sB.login(IP_static, peer_user, peer_passwd)
# sA
# make sure NM is not handling eth0
results['NM_nmcli'] = sA.run('nmcli d')
results['NM_nslookup'] = sA.run('nslookup www.arnes.si')
# sB
# check whether NM is handling eth0
results['static_nmcli'] = sB.run('nmcli d')
results['static_nslookup'] = sB.run('nslookup www.arnes.si')
# Check if the tap exists
# Must return a non-empty string
results['is_tap_exists'] = sA.run('ls /sys/class/net | grep "tap0"');
# Check if the VPN server is running
# Must return a non-empty string
results['is_VPN_running'] = sA.run('ls /sys/class/net | grep "tun0"');
# Check if both clients are connected
#
#
sA.logout()
sB.logout()
return results
def gen_params(user_id, params_meta):
alpha = "abcdefghijklmnoprstuvzxyqw"
alphaupp = "ABCDEFGHIJKLMNOPRSTUVZQWXY"
alpha2 = ['$','?','!',"%","&"]
alpha3 = ['IT','DH','JF','PO','LZ']
temp = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
hash = ""
for x in temp:
for i in x:
if int(i)<5:
hash+=random.choice(alpha)+alpha2[int(i)]
else:
hash+=random.choice(alphaupp)+alpha3[int(i)-5]
hash+=":"+temp
params = dict()
r = random.Random(user_id)
# IP_NM, DNS_NM, IP_static, DNS_static)
dns_servers = ['193.2.1.66', '193.2.1.72', '8.8.8.8', '8.8.4.4', '208.67.222.222', '208.67.220.220']
net = kpov_random_helpers.IPv4_subnet_gen(r, '172.23.128.0/18', 24)
params['DNS_NM'] = r.choice(dns_servers)
params['IP_NM'], params['IP_static'] = kpov_random_helpers.IPv4_addr_gen(r, net, 2)
params['DNS_static'] = r.choice(dns_servers)
params[user_id] = hash
return params
def task_check(results, params):
import re
score = -9
if results['NM_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_NM'])) > -1:
score += 3
if results['static_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_static'])) > -1:
score += 3
if re.search(r'eth0 +802-.*connected', results['NM_nmcli']):
score += 2
if not re.search(r'eth0 +802-.*connected', results['static_nmcli']):
score += 2
score = 0
return score
def prepare_disks(templates, params):
d = templates['simpleArbiterDhcp']
guestmount -a d -m /dev/VG/LV -m /dev/sda1:/boot --ro /mnt
pass
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