simple relay scatternet and a question

Dear Bluezers,

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 ????

Please kindly comment this.

Thanks.

Hi,

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

Regards

Marcel

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