mirror of
https://github.com/sploutchy/impacket
synced 2026-06-08 17:32:01 +00:00
Martin Gallo
cd4fe47cfc
This was a pending change to: - Use the same tagline, copyright and license notice across files. - Remove authors' contacts that are no longer valid (due to affiliation changes). - Update repository location. - Update license file with missing licenses (althought those were already in source files). This doesn't include any change on the source code, nor any change on current copyright or licenses. Just formatting and phrasing to make our and distro's maintainers life easier.
92 lines
2.6 KiB
Python
Executable File
92 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python
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# Impacket - Collection of Python classes for working with network protocols.
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#
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# SECUREAUTH LABS. Copyright (C) 2021 SecureAuth Corporation. All rights reserved.
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#
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# This software is provided 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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# Description:
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# Simple ICMP 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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# Gerardo Richarte (@gerasdf)
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# Javier Kohen
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#
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# Reference for:
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# ImpactPacket: IP, ICMP, DATA
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# ImpactDecoder
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#
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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, ImpactPacket
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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 = ImpactPacket.IP()
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ip.set_ip_src(src)
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ip.set_ip_dst(dst)
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# Create a new ICMP packet of type ECHO.
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icmp = ImpactPacket.ICMP()
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icmp.set_icmp_type(icmp.ICMP_ECHO)
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# Include a 156-character long payload inside the ICMP packet.
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icmp.contains(ImpactPacket.Data(b"A"*156))
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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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# Open a raw socket. Special permissions are usually required.
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s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
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s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
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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.set_icmp_id(seq_id)
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# Calculate its checksum.
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icmp.set_icmp_cksum(0)
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icmp.auto_checksum = 1
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# Send it to the target host.
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s.sendto(ip.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.IPDecoder().decode(reply)
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# Extract the ICMP packet from its container (the IP packet).
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ricmp = rip.child()
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# If the packet matches, report it to the user.
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if rip.get_ip_dst() == src and rip.get_ip_src() == dst and icmp.ICMP_ECHOREPLY == ricmp.get_icmp_type():
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print("Ping reply for sequence #%d" % ricmp.get_icmp_id())
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time.sleep(1)
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