[ECOS] FreeBSD-Stack not responding

[ECOS] FreeBSD-Stack not responding

[Wolfgang Heppner]

Hello,

I recently switched from the Open- to the FreeBSD stack (latest CVS
version)
When i try to send Data to my target (e.g. ascii strings via a telnet
client on Linux and/or Windows), the data is lost in the stack (the
"read" call in my application never returns) - even when a connection
could be established and my application could send a "Prompt" to the
telnet client! With the OpenBSD Stack this works fine.

I figured out that packets are dropped in the cyg_tcp_input function
because of a bad checksum.

I got some warnings during the eCos-built:
implicit declarations of function 'cyg_in_cksum_hdr' in ip_input.c:332
implicit declarations of function 'cyg_in_cksum_hdr' and
'cyg_in_cksum_skip'
in ip_output and
implicit declarations of function 'cyg_in_pseudo' in tcp_input:405
(among some others)

Has anybode experienced similar problems with the FreeBSD stack?
Any ideas?

Thanks in advance
Wolfgang

PS: I built the eCos library with the new_net template and removed libm
and dns support.

-- 
Wolfgang Heppner

High Speed Kamerasysteme  - Abt. Bildsensorik (ESY-B)
High Speed Camera Systems - Dept. Electronic Imaging (ESY-B)

Fraunhofer                            
Institut Integrierte Schaltungen
Angewandte Elektronik

Am Wolfsmantel 33 
91058 Erlangen       
(Germany)

Tel:   +49 (0) 9131 776 528
Fax:   +49 (0) 9131 776 598

email: hep@iis.fhg.de
web:   http://www.iis.fhg.de

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

Re: [ECOS] FreeBSD-Stack not responding

[Gary Thomas]

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On Sat, 2002-07-27 at 15:03, Wolfgang Heppner wrote:
> Hello,
> 
> I recently switched from the Open- to the FreeBSD stack (latest CVS
> version)
> When i try to send Data to my target (e.g. ascii strings via a telnet
> client on Linux and/or Windows), the data is lost in the stack (the
> "read" call in my application never returns) - even when a connection
> could be established and my application could send a "Prompt" to the
> telnet client! With the OpenBSD Stack this works fine.
> 
> I figured out that packets are dropped in the cyg_tcp_input function
> because of a bad checksum.
> 
> I got some warnings during the eCos-built:
> implicit declarations of function 'cyg_in_cksum_hdr' in ip_input.c:332
> implicit declarations of function 'cyg_in_cksum_hdr' and
> 'cyg_in_cksum_skip'
> in ip_output and
> implicit declarations of function 'cyg_in_pseudo' in tcp_input:405
> (among some others)

These are just warnings and should be harmless.

> 
> Has anybode experienced similar problems with the FreeBSD stack?
> Any ideas?
> 
> Thanks in advance
> Wolfgang
> 
> PS: I built the eCos library with the new_net template and removed libm
> and dns support.

What's the target?


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Re: [ECOS] FreeBSD-Stack not responding

[Wolfgang Heppner]

Hello Gary,

I'm working on a PowerPC target (MPC8xx), its my own HAL, based on the
VIPER
I made some minor changes to the FEX driver (changing GPIOs), but the
Ethernet works fine. I configured with Windows Configtool 1.3.net and i
am using gcc 2.95.2 (powerpc-eabi).
I suspect the problem is target dependend.


Regards 
Wolfgang

Gary Thomas wrote:
> 
> On Sat, 2002-07-27 at 15:03, Wolfgang Heppner wrote:
> > Hello,
> >
> > I recently switched from the Open- to the FreeBSD stack (latest CVS
> > version)
> > When i try to send Data to my target (e.g. ascii strings via a telnet
> > client on Linux and/or Windows), the data is lost in the stack (the
> > "read" call in my application never returns) - even when a connection
> > could be established and my application could send a "Prompt" to the
> > telnet client! With the OpenBSD Stack this works fine.
> >
> > I figured out that packets are dropped in the cyg_tcp_input function
> > because of a bad checksum.
> >
> > I got some warnings during the eCos-built:
> > implicit declarations of function 'cyg_in_cksum_hdr' in ip_input.c:332
> > implicit declarations of function 'cyg_in_cksum_hdr' and
> > 'cyg_in_cksum_skip'
> > in ip_output and
> > implicit declarations of function 'cyg_in_pseudo' in tcp_input:405
> > (among some others)
> 
> These are just warnings and should be harmless.
> 
> >
> > Has anybode experienced similar problems with the FreeBSD stack?
> > Any ideas?
> >
> > Thanks in advance
> > Wolfgang
> >
> > PS: I built the eCos library with the new_net template and removed libm
> > and dns support.
> 
> What's the target?
> 
>   ------------------------------------------------------------------------
>                        Name: signature.asc
>    signature.asc       Type: application/pgp-signature
>                 Description: This is a digitally signed message part

-- 
Wolfgang Heppner

High Speed Kamerasysteme  - Abt. Bildsensorik (ESY-B)
High Speed Camera Systems - Dept. Electronic Imaging (ESY-B)

Fraunhofer                            
Institut Integrierte Schaltungen
Angewandte Elektronik

Am Wolfsmantel 33 
91058 Erlangen       
(Germany)

Tel:   +49 (0) 9131 776 528
Fax:   +49 (0) 9131 776 598

email: hep@iis.fhg.de
web:   http://www.iis.fhg.de

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss