83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
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#!/usr/local/bin/python2.sh
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# SECUREAUTH LABS. Copyright 2018 SecureAuth Corporation. All rights reserved.
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#
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# This software is provided under under a slightly modified version
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# of the Apache Software License. See the accompanying LICENSE file
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# for more information.
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#
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# Simple ICMP6 ping.
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#
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# This implementation of ping uses the ICMP echo and echo-reply packets
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# to check the status of a host. If the remote host is up, it should reply
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# to the echo probe with an echo-reply packet.
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# Note that this isn't a definite test, as in the case the remote host is up
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# but refuses to reply the probes.
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# Also note that the user must have special access to be able to open a raw
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# socket, which this program requires.
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#
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# Authors:
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# Alberto Solino (@agsolino)
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#
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# Reference for:
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# ImpactPacket: ICMP6
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# ImpactDecoder.
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import select
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import socket
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import time
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import sys
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from impacket import ImpactDecoder, IP6, ICMP6, version
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print(version.BANNER)
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if len(sys.argv) < 3:
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print("Use: %s <src ip> <dst ip>" % sys.argv[0])
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sys.exit(1)
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src = sys.argv[1]
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dst = sys.argv[2]
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# Create a new IP packet and set its source and destination addresses.
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ip = IP6.IP6()
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ip.set_ip_src(src)
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ip.set_ip_dst(dst)
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ip.set_traffic_class(0)
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ip.set_flow_label(0)
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ip.set_hop_limit(64)
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# Open a raw socket. Special permissions are usually required.
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s = socket.socket(socket.AF_INET6, socket.SOCK_RAW, socket.IPPROTO_ICMPV6)
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payload = "A"*156
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print("PING %s %d data bytes" % (dst, len(payload)))
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seq_id = 0
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while 1:
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# Give the ICMP packet the next ID in the sequence.
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seq_id += 1
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icmp = ICMP6.ICMP6.Echo_Request(1, seq_id, payload)
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# Have the IP packet contain the ICMP packet (along with its payload).
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ip.contains(icmp)
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ip.set_next_header(ip.child().get_ip_protocol_number())
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ip.set_payload_length(ip.child().get_size())
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icmp.calculate_checksum()
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# Send it to the target host.
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s.sendto(icmp.get_packet(), (dst, 0))
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# Wait for incoming replies.
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if s in select.select([s],[],[],1)[0]:
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reply = s.recvfrom(2000)[0]
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# Use ImpactDecoder to reconstruct the packet hierarchy.
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rip = ImpactDecoder.ICMP6Decoder().decode(reply)
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# If the packet matches, report it to the user.
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if ICMP6.ICMP6.ECHO_REPLY == rip.get_type():
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print("%d bytes from %s: icmp_seq=%d " % (rip.child().get_size()-4,dst,rip.get_echo_sequence_number()))
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time.sleep(1)
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