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SubjectRe: How to disable authentication when using bluetooth on Linux?
Hi, Pavan

Thanks for your reply. I had tried this before, and tried it again
just now, but it still doesn't work.

The following are my steps, pls help to check if I missed any steps, THX!

1. change "security user;" to "security none;" in /etc/bluetooth/hcid.conf
2. Restart the bluetooth service: # /etc/init.d/bluetooth restart
3. (Optional: I tried twice, once with this step, and the other without)
Start passkey-agent: # passkey-agent --default 1234
4. ussp-push --dev 0 --debug 00:01:02:03:04:05@11 desk.jpg desk.jpg &

root@debian:~/bluetooth#
pushing file desk.jpg
name=desk.jpg, size=24762
__obex_connect: client_context_t = 0x80540f0
Registered transport
Set user data
Created new objext
cobex_write
Local device 00:01:02:03:04:01
Remote device 00:01:02:03:04:05 (11)
Write error: Transport endpoint is not connected
obex_event: client_context_t = 0x80540f0
cobex_disconnect
Link broken!
Started a new request
cobex_close
__obex_connect: error=-2
Unable to connect to the server
Error


my /etc/bluetooth/hcid.conf configuration are as following:
-------------------------------------------------------------------------
# HCId options
options {
autoinit yes;
security none;
pairing multi;
passkey "1234";
}

# Default settings for HCI devices
device {
name "pass1234";
# Local device class
class 0x3e0100;
# Default packet type
#pkt_type DH1,DM1,HV1;
# Inquiry and Page scan
iscan enable; pscan enable;
# Default link mode
lm accept;
# Default link policy
lp rswitch,hold,sniff,park;
}
-------------------------------------------------------------------------

Is this configuration correct?

My Linux version is:
root@debian:~/bluetooth# uname -a
Linux debian 2.6.18-6-686 #1 SMP Sun Feb 10 22:11:31 UTC 2008 i686 GNU/Linux

Any more information needed?

THX


Kris
2008/10/7 <pavan_savoy@indiatimes.com>:
>
> Seems you are using BlueZ -3.37, look in the hcid.conf file in /etc/bluetooth, it should have a keyword "security", make the option to none.
> [I assume its says "user" currently.]
>
>
> Regards,
> Pavan
>
> ----- Original Message -----
> From: chen chong <byrbzdl@gmail.com>
> To: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org
> Sent: Tue, 7 Oct 2008 12:25:18 +0530 (IST)
> Subject: How to disable authentication when using bluetooth on Linux?
>
> Hi, all
>
> When pushing a file to bluetooth mobile phone from a Linux PC, how to
> disable bluetooth authentication mechanism (in kernel or user level ?
> ), so that the phone won't prompt a window ask for PIN code?
>
>
> I'm a freshman on bluez, now I'm trying to write an application on
> Linux PC, to send files to mobile phones with OBEX. The PC has a USB
> bluetooth stick to communication with the phone.
>
> Now I have successfully sent a file to phone using the following commands:
> 1. "hcitool scan" and "sdptool browse"
> 2. "passkey-agent --default 1234" and "ussp-push --dev 0
> BTADDR@CHANNEL desk.jpg desk.jpg"
>
> but the phone ask for a PIN code at the start.
>
> To get rid of this, I had tried to comment out
> "start_security_manager()" in bluez-utils-3.7/hcid/main.c, and
> recompile it, then restart the bluetooth service. But PIN code was
> still prompted, and after if I input some characters, the command
> "ussp-push --dev 0 --debug BTADDR@CHANNEL desk.jpg desk.jpg", failed
> with the following error:
>
> root@debian:~/bluetooth# pushing file desk.jpg
> name=desk.jpg, size=24762
> __obex_connect: client_context_t = 0x80540f0
> Registered transport
> Set user data
> Created new objext
> cobex_write
> Local device 00:01:02:03:04:01
> Remote device 00:01:02:03:04:05 (11)
> Write error: Transport endpoint is not connected
> obex_event: client_context_t = 0x80540f0
> cobex_disconnect
> Link broken!
> Started a new request
> cobex_close
> __obex_connect: error=-2
> Unable to connect to the server
> Error
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