[netperf-talk] Netperf compilation problems

[Rick Jones]

Tim Schneider wrote:
> Hello,
> 
> I'm currently working on my Bachelor's Thesis where I'm trying to compare
> different Transportprotocolls in a Wireless-Mesh-Network. When I searched for
> Testsoftware, I found Netperf to be suitable for my needs. But, when I tried
> to use it, it didn't work right away...
> 
> First I had some compilation problems. Compiling just standard Netperf works
> fine, but once I add SCTP, omni or DCCP, I get errors.
> 
> When I add --enable-omni or --enable-sctp, I get an error saying:
> 
> netlib.c: In function ‘inet_ptos’:
> netlib.c:518: error: ‘IPPROTO_SCTP’ undeclared (first use in this function)
> netlib.c:518: error: (Each undeclared identifier is reported only once
> netlib.c:518: error: for each function it appears in.)
> 

My top-of-trunk ntlib.c has this:

     break;
#if defined(IPPROTO_SCTP)
   case IPPROTO_SCTP:
     return("IPPROTO_SCTP");
     break;
#endif

the use of IPPROTO_SCTP is protected under an #if defined, so if it didn't 
really exist I would have expected that code to not be seen after pre-processing.

> When I add --enable-DCCP, I get the above error above and a warning
> 
> In file included from netlib.c:174:
> netsh.h:57:2: warning: #warning This platform is missing one of sock_dccp ipproto_dccp or sol_dccp
> 

That comes from there not being a "proper" define found for one or more of those:

/* include netinet/in.h to see if SOCK_DCCP and IPPROTO_DCCP are there */
#include <netinet/in.h>

#ifndef SOCK_DCCP
#define DCCP_WARNING
#define SOCK_DCCP 6
#endif

#ifndef IPPROTO_DCCP
#define DCCP_WARNING
#define IPPROTO_DCCP 33  /* defined by the IANA */
#endif

#ifndef SOL_DCCP
#define DCCP_WARNING
#define SOL_DCCP 269
#endif

#ifdef DCCP_WARNING
#warning This platform is missing one of sock_dccp ipproto_dccp or sol_dccp
#endif

and netperf warning that it is ass-u-me-ing about the values.

> I was able to work around this problem, by adding the line
> 
> #define IPPROTO_SCTP 132
> 
> to netlib.h, but this is a rather ugly workaround.
> 
> Am I doing anything wrong here? Is my system missing something?

Possibly, but then perhaps netperf has :)

Are you sure the "dev" environment for SCTP is installed on the system

> I am trying to compile on a x86 Laptop with Ubuntu 10.04 installed. The
> Kernelversion is 2.6.32-22.

During compilation, what netperf cares more about is what include files it 
finds.  FWIW, I happen to have a 10.04 laptop on which ./configure --enable-omni 
and/or --enable-sctp results in a clean compilation using the top-of-trunk. And 
I can confirm that the #if defined(IPPROTO_SCTP) code in netlib.c was being 
compiled-in.

happy benchmarking,

rick jones

> 
> I would be glad about any hints about what could be wrong.
> 
> I also have some testing Problems but I'll address those in another e-mail,
> since the topics aren't really related.

> 
> Thank you,
> 
> Tim Schneider
> 
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