Re: [Bluez-users] simple relay scatternet and a question

[Marcel Holtmann <marcel@holtmann.org>]

Hi,

> I  am working on contrcuting a simple relay scatternet with CSR-based
> USB dongle.
> 
> Yesterday I made it that 4 dongle relay data from top to down and dwon
> to top, writing a utility code based on rfcomm program in bluez-util.
> 
> I works fine!
> 
>  
> 
>     A ------------------>B-----------------> C ------------------> D
> 
>        M                        S   M                      S     M
> S
> 
>  
> 
>  
> 
> But, while I am running it serveral time. I got a one difficult
> problem "Can't bind: Address already in Use!"
> 
> This is old problem in TCP/IP socket program, when the server clashes
> without close the socket, so that the well-kown (or fixed anyway)
> 
> cannot be resused again for a several minutes in typical TCP/IP socket
> program.   
> 
>  
> 
> But! what is the port in rfcomm socket? Is this channel numer? or
> board address?.
> 
> And Can I use socketopt system call for the rfcomm socket ?  for
> RESUSE option!
> 
> Also, the socket address is not freed for even 30 minutes, while
> usually TCP/IP port is can be resued after several minutes!
> 
> What part of kernel stack has something with this??? rfcomm.o ???? 

what kernel version do you use and what about showing us your code?

Regards

Marcel




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