Re: [Bluez-devel] can't establish more than two rfcomm connections

[Marcel Holtmann <marcel@holtmann.org>]

Hi David,

> i have built a rfcomm server, using bluez-stack. I created a service 
> record containing a service-id 0x1234 on rfcomm port 1.
> 
> A client can connect sdpd and establish a connection to my tcplike 
> rfcomm-server. rfcomm-server first gets a socket, binds it on 
> rfcommchannel 1 and listens on that, accepting incomming requests. 
> Incomming connections are handled by sysfunction select().
> 
> But only two clients can connect at the same time. It seems that sdpd 
> can not handle more than two clients.
> I tried to make a "sdptool browse", when two clients are connected, but 
> it fails with "Host is down"-msg.
> (But on the local machine, where rfcomm-server is running "sdptool 
> browse local" gives me the correct servicerecord including my 0x1234 
> serviceid)
> 
> It's weird, why there can connect two clients on one rfcomm-channel 1 
> and not only one client, or more than two???
> 
> Is there a secret option to tell sdpd how much clients have to be handled?
> 
> The first "solution" in my brain was to build another servicerecord with 
> same serviceid 0x1234 and let rfcomm-server bind and listen on more than 
> one rfcomm-channel. But clients can not communicate with sdpd when two 
> connections are established. On my J2ME client i get a "security block" 
> exception when trying to connect as third client.
> 
> Does somebody got same issues?
> Has anybody an idea why only two connections can be established?

Please sort out your actual question. You are mixing SDP and RFCOMM and
I can't tell what's actually your problem.

Regards

Marcel



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