Re: [Barry-devel] Making tethered modem support easy

[Chris F. <cd...@fo...>]

On Thu, May 29, 2008 at 12:22:50AM -0500, Andy Herkey wrote:
> My barry is a Sprint 8703e using BES connected to my corporate network.  
> 12 days ago I saw that you updated pppob.cc and associated programs, so 
> I uploaded the CVS and compiled.  Wow, big changes since 0.12. Nice code 
> btw.

Thanks very much for testing this!


> I couldn't get the ipmodem to work, probably because the device is 
> password protected, but I did get the serial modem working by adding the 
> password support to ppppb.cc and adding my password to the pty command.
> 
> pty "/home/aherkey/src/barry/tools/pppob -vsP passwd"
> 
> $ diff pppob.cc pppob.cc.cvs

Your patch didn't apply, but it was simple enough to do myself.  In the
future, you'll want to create your patch like this:

	# if just changes
	diff -ru barry-old-dir barry-new-dir

	# if there are new files (make sure your tree is clean)
	diff -ruN barry-old-dir barry-new-dir

Or, since you're already using CVS:

	cd barry-workdir
	cvs diff -u > patch


I've added code to enable the desktop mode on the device, even in ipmodem
mode, if there is a password provided.  Could you checkout the latest
CVS and test whether this works for you?  You're the first person to
report that a password controls ipmodem.

I haven't tested password support in detail yet, so thanks for your report.


> Last week I saw that Michael Stokes was also using a 8703e, but he 
> didn't say if he was using BES or what mode his modem was using.  Just 
> curious if his is also password protected.  Anyway I did a few usbsnoops 
> at work using XP and Sprint's connection manager (CM).  Each time the CM 
> asked twice for my password (maybe for each modem mode), but I never saw 
> the BB request a password challenge.  If I canceled entering the 
> password the CM said that it couldn't find any devices. I did manage to 
> wipe my BB by playing back a snoop dump. Thank goodness for backups. :) 
> Oh well, I'll keep digging though.

I'm surprised you could wipe a BES'd device!  Usually the databases
become read-only, in my experience.

Can you tell from the snoop logs which endpoint is being used for the
modem.  I'm curious how it handles the password if it is using ipmodem
mode.

Also, since you're using Sprint (I assume), which ppp options file and
chatscript did you use?

Thanks,
- Chris