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L2CAP: ECONNRESET

Bluez-devel Lukas Szemla 2 participants 2 messages Dec 12, 2006 Bluetooth drivers

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Lukas Szemla

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Hi *,
I have a problem with BlueZ when used with openOBEX. I've implemented application for vCard receiving and every time the vCard is received, the error on L2CAP level is signalled. This error takes place after the vCard is sucessfully received (and no error on OBEX level is signaled to me).

The error is ECONNRESET and is a result of l2cap_chan_del(sk, ECONNRESET) call
in
l2cap_disconnect_req
This is called from l2cap_sig_channel after device sent L2CAP_DISCONN_REQ on 0x001 CID channel.

My question is why is the l2cap_chan_del(sk, ECONNRESET) is hard-wired in L2CAP_DISCONN_REQ request handling? Where is the problem and how can I get rid of it (on the OBEX level)? Should I never get L2CAP_DISCONN_REQ in normal operation mode?
I've tried several devices with the same result. My openOBEX is of 1.3, kernel 2.4.31 official one. I run the application on MIPS.

I've added some traces in the kernel and I can post it here if somebody finds this useful. I haven't done it now since this is a lot of bloody stuff that is not the official one.

Any hint is greatly welcomed.
Thanks in advance!

Signature · 14 lines
Best regards.

LS.


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#1 lore raw

Hi Lukas,

Quoted 13 lines

I have a problem with BlueZ when used with openOBEX. I've implemented application for vCard receiving and every time the vCard is received, the error on L2CAP level is signalled. This error takes place after the vCard is sucessfully received (and no error on OBEX level is signaled to me).

The error is ECONNRESET and is a result of l2cap_chan_del(sk, ECONNRESET) call
in
l2cap_disconnect_req
This is called from l2cap_sig_channel after device sent L2CAP_DISCONN_REQ on 0x001 CID channel.

Quoted 6 lines

My question is why is the l2cap_chan_del(sk, ECONNRESET) is hard-wired in L2CAP_DISCONN_REQ request handling? Where is the problem and how can I get rid of it (on the OBEX level)? Should I never get L2CAP_DISCONN_REQ in normal operation mode?
I've tried several devices with the same result. My openOBEX is of 1.3, kernel 2.4.31 official one. I run the application on MIPS.

you should start using a 2.6 kernel. The 2.4 series is not really supported anymore.

And run "hcidump -X -V" to see what actually happens.

Regards

Marcel

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