Tutorial 4: INET¶
This sections shows several examples how to use INET client and packet methods.
- connect: connect to server
- disconnect: disconnect from server
- send: send data to server
- receive: receive data from server
- ip2name: resolve IP address to DNS name
- name2ip: resolve DNS name to IP address
Packet: factory method to create packet for required protocol
compose_packet: compose complete packet from packets for partial protocols
dump: print packet dump
send_packet: send packet to server
send_recv_packet: send packet to server and receive answer
ping: ping server
traceroute: traceroute server
sniffer: sniff network traffic
API uses HydraTK core functionalities so it must be running.
# import library from hydratk.lib.network.inet.client import Client # initialize client client = inet.Client('IPv4', 'TCP') # connect to server # returns bool client.connect('lxbillppt402.ux.to2cz.cz', 22) # send data client.send('I am hydra') # receive data client.receive() # resolve IP address <-> DNS name print client.name2ip('lxbillppt402.ux.to2cz.cz') print client.ip2name('172.26.128.24') # disconnect from server # returns bool client.disconnect()
# import library from hydratk.lib.network.inet.client import Client # initialize client client = inet.Client('IPv4', 'UDP') # send data # server must be provided because UDP is connection-less protocol client.send('I am hydra', 'lxbillppt402.ux.to2cz.cz', 22) # receive data, wait 10 seconds client.receive(timeout=10)
# import library import hydratk.lib.network.inet.packet as inet # prepare compound packet from Ether, IP, TCP protocols packets = [inet.Packet('Ether'), inet.Packet('IP', dst='google.com'), inet.Packet('TCP', dport=80)] packet = inet.compose_packet(packets, '123456789123456789') # print packet inet.dump(packet) # send packet via eth0 interface inet.send_packet(packets, iface='eth0') # send packet and receive answer inet.send_recv_packet(packet, iface='eth0') # ping server via ICMP, TCP inet.ping('google.com', 'ICMP') inet.ping('google.com', 'TCP', 80) # traceroute server via ICMP, TCP inet.traceroute('google.com', 'ICMP') inet.traceroute('google.com', 'TCP', 80) # sniff network traffic and store it to pcap file inet.sniffer('./mine.pcap')
These methods must be executed with admin rights otherwise permission required error is raised. Library uses raw packets from module socket.