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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# TODO: dokoncaj!
# kpov_random_helpers should be imported by add_assignment.py
instructions = {
'si':u"""
Postavi štiri navidezne računalnike - simpleArbiter, DHCP_server,
BootableClientA ter BootableClientB. Na simpleArbiter preberi naslove IP_GW, IP_DHCP,
IP_B ter ime datoteke BOOT_FNAME.
Na DHCP_server postavi DHCP strežnik s pomočjo ISC dhcp 3 na naslovu IP_DHCP.
SimpleArbiter naj dobi IP_GW. DHCP_server naj ga uporabi kot gateway.
Če se zaganja BootableClientB, naj se sistem zažene z live ISO in dobi svoj IP. ISO je priklopljen na DHCP_server.
Če se zaganja katerikoli drug, naj se sistem zažene v datoteko z imenom BOOT_FNAME.
Tako BootableClientA kot BootableClientB naj bosta brez diskov.
""", 'en': """Set up 4 virtual computers - simpleArbiter, DHCP_server, BootableClientA and
BootableClientB. The simpleArbiter reads the address IP_GW, IP_DHCP and finds
the file BOOT_FNAME.
On the DHCP_server set up a DHCP server with the help of ISC dhcp 3 on the address IP_DHCP.
Get SimpleArbiter to find IP_GW. Make the DHCP_server use it as a gateway.
If there is BootableClientB loading, make the system start-up with a live ISO and make it get hit own IP.
If there is anyone else loading, make the system load the file with the name BOOT_FNAME.
Make BootableClientA and BootableClientB be without discs. """
}
computers = {
'DHCPServer': {
'disks': [
{ 'name': 'DHCPServer',
},
{ 'name': 'bootable_iso',
'options':{'readonly': True},
# for testing purposes only
'parts': [ {} ],
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'BootableClientA': {
'disks': [
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'BootableClientB': {
'disks': [
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'SimpleArbiter': {
'disks': [
{ 'name': 'simpleArbiterDhcp',
},
#{ '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_DHCP': {'descriptions': {'si': 'IP DHCP streznika'}, 'w': False, 'public': True, 'type':'IP', 'generated': True},
'IP_GW': {'descriptions': {'si': 'IP SimpleArbiterja'}, 'w': False, 'public': True, 'type':'IP', 'generated': True},
'MAC_BOOT': {'descriptions': {'si': 'MAC racunalnika, ki se zazene z ISO'}, 'w': True, 'public': True, 'type':'MAC', 'generated': False},
'IP_BOOT': {'descriptions': {'si': 'IP racunalnika, ki se zazene z ISO'}, 'w': True, 'public': True, 'type':'IP', 'generated': False},
'BOOT_FNAME': {'descriptions': {'si': 'Ime datoteke'}, 'w': False, 'public': True, 'type': 'filename', 'generated': True},
}
def task(IP_DHCP, IP_GW, MAC_BOOT, BOOT_FNAME):
# check the IP
# TODO (polz): Do not use tabs instead of spaces!
import socket
import os
results={}
try:
# TODO (polz): What purpose does this check serve?
if IP_DHCP.count('.')!=3 or IP_GW.count('.')!=3:
results['IPcheck']=False
socket.inet_pton(socket.AF_INET,IP_DHCP)
socket.inet_pton(socket.AF_INET,IP_GW)
results['IPcheck']=True
# ping the DHCP server
# TODO (polz): Please use pexpect instead of os.system, it's much nicer.
# Also, test your functions. This function was obviously never run.
#
if os.system("ping "+IP_DHCP)==0:
results[PingDHCP]=True
print("Povezava z DHCP strežnikom je OK")
# check whether the fname served by the dhcp server is
# correct
# you should check the DHCP response from the server.
# You can use dhcpdump to get some packets, dhcping to create a
# DHCP Request. You may also use any other tool.
# If you choose to use dhcping, do not forget to set the hw address
# and ip arguments. You can simply feed it MAC_BOOT and IP_BOOT.
# dhcping -h MAC_BOOT -c IP_BOOT -V -r
# could work (but you should test it)
datoteka=open(BOOT_FNAME,"r")
array=[]
for line in datoteka:
array.append(line)
datoteka.close()
#greš skozi array preverit ce je vse ok
else:
print("Povezava s strežnikom ni OK")
results['PingDHCP']=False
except FileNotFoundError:
results['BootFname']=False
return "Datoteka ne obstaja"
except IOError:
results['BootFname']=False
return "I/O napaka"
except OSError:
results['IPcheck']=False
# check whether the fname served by the dhcp server is correct
# connect to the service in the special ISO
# check the MAC of the server on IP_BOOT
return results
def gen_params(user_id, params_meta):
params = dict()
r = random.Random(user_id)
net = kpov_random_helpers.IPv4_subnet_gen(r, '10.64.0.0/10', 24)
params['IP_DHCP'], params['IP_GW'] = kpov_random_helpers.IPv4_addr_gen(r, net, 2)
params['BOOT_FNAME'] = kpov_random_helpers.fname_gen(r)
# IP_NM, DNS_NM, IP_static, DNS_static)
return params
def task_check(results, params):
import re
score = 0
#TO FINISH SCORING WE REQUIRE DICT KEYS AND FUNCTIONS gen_params AND task TO BE FINISHED
#POINTS FOR EACH TASK MAY BE ADJUSTED IN THE FUTURE
#TASK1: all computers up
if results['NM_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_NM'])) > -1:
score += 3
#TASK2: SimpleArbeiter IP_GW
if results['static_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_static'])) > -1:
score += 3
#TASK3: SimpleArbeiter IP_DHCP
if re.search(r'eth0 +802-.*connected', results['NM_nmcli']):
score += 2
#TASK4: SimpleArbaiter IP_B
if re.search(r'eth0 +802-.*connected', results['static_nmcli']):
score += 2
if results['NoNameATM'].find('NoFormatATM'.format(params['NoNameAtm'])) > -1:
score +=2
#Same pattern for other tasks
return score
def prepare_disks(templates, params):
# d = templates['simpleArbiterDhcp']
pass
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