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From: Rainer Dorsch <rdorsch@web.de>
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Subject: [Bluez-users] pand seem to ignore any pin configurations
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Date: Sat, 7 May 2005 22:03:44 +0200

Hello,

I have setup a PAN network with a NAP (bluez-utils 2.15/kernel 2.6.7) and a 
PANU (bluez-utils/kernel-2.6.8). Each has an usb bt dongle and runs Debian 
sarge. Surprisingly, they seem to ignore any pin configuration. If there is 
good documentation on this somewhere, I would be happy with a pointer.


My assumption is that the PANU provides a PIN and NAP needs to confirm it.

My first problem is that I do not understand, where to provide a PIN on the 
PANU.

NAP has this configuration:

silverboxy:~# cat /etc/bluetooth/hcid.conf
#
# HCI daemon configuration file.
#
# $Id: hcid.conf,v 1.7 2004/12/13 14:16:03 holtmann Exp $
#

# HCId options
options {
        # Automatically initialize new devices
        autoinit yes;

        # Security Manager mode
        #   none - Security manager disabled
        #   auto - Use local PIN for incoming connections
        #   user - Always ask user for a PIN
        #
        security user;

        # Pairing mode
        #   none  - Pairing disabled
        #   multi - Allow pairing with already paired devices
        #   once  - Pair once and deny successive attempts
        pairing multi;

        # PIN helper
        # pin_helper /usr/bin/bluez-pin;
        pin_helper /usr/local/bin/pin-helper;
        # D-Bus PIN helper
        #dbus_pin_helper;
}

# Default settings for HCI devices
device {
        # Local device name
        #   %d - device id
        #   %h - host name
        name "%h-%d";

        # Local device class
        class 0x3e0100;

        # Default packet type
        #pkt_type DH1,DM1,HV1;

        # Inquiry and Page scan
        iscan enable; pscan enable;

        # Default link mode
        #   none   - no specific policy
        #   accept - always accept incoming connections
        #   master - become master on incoming connections,
        #            deny role switch on outgoing connections
        lm accept,master;

        # Default link policy
        #   none    - no specific policy
        #   rswitch - allow role switch
        #   hold    - allow hold mode
        #   sniff   - allow sniff mode
        #   park    - allow park mode
        lp rswitch,hold,sniff,park;

        # Authentication and Encryption (Security Mode 3)
        #auth enable;
        #encrypt enable;
}
silverboxy:~#

and the pin is provided by


silverboxy:~# cat  /usr/local/bin/pin-helper
#!/bin/sh

echo "PIN:1234"

silverboxy:~#

No mattter which pin is there the connection setup works.


What is strange here is that auth is commented out in hcid.conf. If I enable 
that, I get

May  7 21:48:36 topsi pand[9586]: Failed to connect to the SDP server. 
Function not implemented(38)

on the PANU side.

Any ideas are welcome.

Thanks,
Rainer


-- 
Rainer Dorsch
Alzentalstr. 28
D-71083 Herrenberg
07032-919495
Icq: 32550367


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