Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #37319

Re: Sending a broadcast message using raw sockets

Path csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder2.hal-mli.net!news.swapon.de!easy.in-chemnitz.de!feeder.erje.net!eu.feeder.erje.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <pwsteele@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.004
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'python,': 0.02; 'socket': 0.05; '22,': 0.09; 'sockets': 0.09; 'subject:using': 0.09; 'to:addr:comp.lang.python': 0.09; 'cc:addr:python-list': 0.10; 'easier.': 0.16; 'expected,': 0.16; 'subject:raw': 0.16; 'wrote:': 0.17; 'library,': 0.17; 'jan': 0.18; 'tests': 0.18; 'code,': 0.18; 'do.': 0.21; "i've": 0.23; 'cc:no real name:2**0': 0.24; 'cc:2**1': 0.24; 'tried': 0.25; 'cc:addr:python.org': 0.25; 'header:In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; 'am,': 0.27; 'cc:addr:gmail.com': 0.27; 'done.': 0.27; 'raw': 0.27; 'actual': 0.28; 'environment': 0.29; 'restricted': 0.29; 'subject:Sending': 0.29; 'url:mailman': 0.29; 'code': 0.31; 'asking': 0.32; 'url:python': 0.32; 'running': 0.32; 'url:listinfo': 0.32; "can't": 0.34; 'received:google.com': 0.34; 'received:209.85': 0.35; 'really': 0.36; 'but': 0.36; 'url:org': 0.36; 'available.': 0.37; 'why': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'some': 0.38; 'things': 0.38; 'little': 0.39; 'url:mail': 0.40; 'skip:u 10': 0.60; 'more': 0.63; 'reverse': 0.65; 'fact,': 0.69; '2013': 0.84; 'construct': 0.84; 'hard.': 0.84
X-Received by 10.50.135.33 with SMTP id pp1mr4322907igb.14.1358877480105; Tue, 22 Jan 2013 09:58:00 -0800 (PST)
Newsgroups comp.lang.python
Date Tue, 22 Jan 2013 09:57:59 -0800 (PST)
In-Reply-To <mailman.809.1358874138.2939.python-list@python.org>
Complaints-To groups-abuse@google.com
Injection-Info glegroupsg2000goo.googlegroups.com; posting-host=204.11.231.122; posting-account=U-VKXwoAAABBNTXwSeRIKs11KMikvPUN
References <f37ccb35-8439-42cd-a063-962249b44903@googlegroups.com> <XnsA14F5D5D4670FrtwfreenetREMOVEcouk@88.198.244.100> <0c2b3482-df46-4324-8bf9-2c45d3f6b516@googlegroups.com> <XnsA1505CBA6AF48rtwfreenetREMOVEcouk@88.198.244.100> <96947c45-f16b-4e97-b055-edc1241ee4a1@googlegroups.com> <mailman.809.1358874138.2939.python-list@python.org>
User-Agent G2/1.0
X-Google-Web-Client true
X-Google-IP 204.11.231.122
MIME-Version 1.0
Subject Re: Sending a broadcast message using raw sockets
From Peter Steele <pwsteele@gmail.com>
To comp.lang.python@googlegroups.com
Content-Type text/plain; charset=ISO-8859-1
Content-Transfer-Encoding quoted-printable
Cc Peter Steele <pwsteele@gmail.com>, python-list@python.org
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.15
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list/>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Message-ID <mailman.816.1358878129.2939.python-list@python.org> (permalink)
Lines 29
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1358878129 news.xs4all.nl 6940 [2001:888:2000:d::a6]:50152
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:37319

Show key headers only | View raw


In fact, I have used scapy in the past, but I am working in a restricted environment and don't have this package available. It provides tones more than I really need anyway, and I figured a simple raw socket send/receive can't be *that* hard. I may have to reverse engineer some C code, such as dhclient...

On Tuesday, January 22, 2013 8:07:12 AM UTC-8, Corey LeBleu wrote:
> If you don't *have* to use the actual socket library, you might want to have a look at scapy.  It's a packet manipulation program/library. It might make things a little easier.
> 
> http://www.secdev.org/projects/scapy/
> 
>  
> 
> On Jan 22, 2013 9:17 AM, "Peter Steele" <pwst...@gmail.com> wrote:
> 
> I just tried running you code, and the "sendto" call fails with "Network is unreachable". That's what I expected, based on other tests I've done. That's why I was asking about how to do raw sockets, since tools like dhclient use raw sockets to do what they do. It can clearly be duplicated in Python, I just need to find some code samples on how to construct a raw packet.
> 
> 
> 
> 
> --
> 
> http://mail.python.org/mailman/listinfo/python-list

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-18 23:32 -0800
  Re: Sending a broadcast message using raw sockets Rob Williscroft <rtw@rtw.me.uk> - 2013-01-21 09:10 +0000
    Re: Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-21 17:06 -0800
      Re: Sending a broadcast message using raw sockets Rob Williscroft <rtw@rtw.me.uk> - 2013-01-22 09:06 +0000
        Re: Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-22 07:11 -0800
          Re: Sending a broadcast message using raw sockets Corey LeBleu <coreylebleu@gmail.com> - 2013-01-22 10:07 -0600
            Re: Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-22 09:57 -0800
              Re: Sending a broadcast message using raw sockets Chris Angelico <rosuav@gmail.com> - 2013-01-23 08:19 +1100
                Re: Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-22 13:36 -0800
                Re: Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-22 13:36 -0800
            Re: Sending a broadcast message using raw sockets Peter Steele <pwsteele@gmail.com> - 2013-01-22 09:57 -0800
          Re: Sending a broadcast message using raw sockets Rob Williscroft <rtw@rtw.me.uk> - 2013-01-22 21:58 +0000
            Re: Sending a broadcast message using raw sockets peter@peaxy.net - 2013-01-22 17:21 -0800

csiph-web