From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roberto Riggio Subject: Re: Sample parser for radiotap header Date: Fri, 25 Feb 2011 19:36:17 +0100 Message-ID: <4D67F6A1.6060301@create-net.org> References: <408dc500-c062-ede0-c040-d21a120a386c@me.com> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="------------030306050007070701050202" Return-path: In-Reply-To: <408dc500-c062-ede0-c040-d21a120a386c-BUHhN+a2lJ4@public.gmane.org> Sender: radiotap-owner-sUITvd46vNxg9hUCZPvPmw@public.gmane.org To: Bill Stafford Cc: radiotap-qavaossjCcEdnm+yROfE0A@public.gmane.org List-Id: radiotap@radiotap.org This is a multi-part message in MIME format. --------------030306050007070701050202 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Il 24/02/2011 07:16, Bill Stafford ha scritto: > > The radiotap.org site has a section for Parser Libraries where it lists: > http://git.sipsolutions.net/radiotap.git/ Is this supposed to know about extended present bitmask? I'm creating a packet with four chained present bitmask in order to specify a MRR chain. The problem is that when I'm trying to parse the header with the lib only the first "block" is parsed. In fact when I use the function: ieee80211_radiotap_iterator_next I get ENOENT as return code when the bit 31 is reached. Same result i I try to pass this packet to the linux kernel where the iterator implementation is the same. > > -Bill > -- -------------------------------------------------------- Roberto Riggio, Ph.D. CREATE-NET Network& Security Solutions for Pervasive Computing Systems (iNSPIRE) Senior Researcher Via alla Cascata 56/D - 38123 Povo Trento (Italy) e-mail: roberto.riggio-2TmCWn7/4sHOQU1ULcgDhA@public.gmane.org Tel: (+39) 0461 408400 - interno/extension 708 Fax: (+39) 0461 421157 www.create-net.org/~rriggio -------------------------------------------------------- The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited according to the Italian Law 196/2003 of the Legislature. If you received this in error, please contact the sender and delete the material from any computer. Le informazioni contenute in questo messaggio di posta elettronica e nei file allegati sono da considerarsi strettamente riservate. Il loro utilizzo e' consentito esclusivamente al destinatario del messaggio, per le finalita' indicate nel messaggio stesso. Qualora riceveste questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla cancellazione del messaggio stesso dal Vostro sistema. Trattenere il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalita' diverse, costituisce comportamento contrario ai principi dettati dal D. Lgs. 196/2003. --------------030306050007070701050202 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Il 24/02/2011 07:16, Bill Stafford ha scritto:

The radiotap.org site has a section for Parser Libraries where it lists:

http://git.sipsolutions.net/radiotap.git/

Is this supposed to know about extended present bitmask? I'm creating a
packet with four chained present bitmask in order to specify a MRR chain.

The problem is that when I'm trying to parse the header with the lib only
the first "block" is parsed. In fact when I use the function:

ieee80211_radiotap_iterator_next

I get ENOENT as return code when the bit 31 is reached. Same result
i I try to pass this packet to the linux kernel where the iterator implementation
is the same.

-Bill

-- 
--------------------------------------------------------
Roberto Riggio, Ph.D.
CREATE-NET
Network & Security Solutions for Pervasive Computing Systems (iNSPIRE)
Senior Researcher
Via alla Cascata 56/D - 38123 Povo Trento (Italy)
e-mail: roberto.riggio-2TmCWn7/4sHOQU1ULcgDhA@public.gmane.org
Tel: (+39) 0461 408400 - interno/extension 708
Fax: (+39) 0461 421157
www.create-net.org/~rriggio
--------------------------------------------------------

The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited according to 
the Italian Law 196/2003 of the Legislature. If you received this in 
error, please contact the sender and delete the material from any 
computer.

Le informazioni contenute in questo messaggio di posta elettronica e nei
file allegati sono da considerarsi strettamente riservate. Il loro 
utilizzo e' consentito esclusivamente al destinatario del messaggio, per 
le finalita' indicate nel messaggio stesso. Qualora riceveste questo 
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di 
darcene notizia via e-mail e di procedere alla cancellazione del 
messaggio stesso dal Vostro sistema. Trattenere il messaggio stesso, 
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, 
od utilizzarlo per finalita' diverse, costituisce comportamento 
contrario ai principi dettati dal D. Lgs. 196/2003.

--------------030306050007070701050202--