Re: [Bluez-users] Only one pand-daemon?

[Mats Erik Andersson <mats.andersson64@comhem.se>]

Dear Marcel and all other fellows,

tis 2007-07-03 klockan 05:33 +0200 skrev Marcel Holtmann:
> Hi Mats,
> 
> > I am facing the problem that I cannot start more than
> > one listening pand-daemon, in spite of using two usb-dongles.
> > The second call with 'pand --listen -e bdaddr ...' immediately
> > ends with return value zero and no traces in any log file.
> > I am running Bluez-utils 3.7 on Debiif test "$PAND_ENABLED" != "0"; then
  
> an Etch. Slowly I am 
> > beginning to think that it could be DBUS that haunts me, but I
> > have just begun studying the source code of pand to make sure.
> 
> I have no idea why you actually need two pand, but you can call pand
> with -i hciX to bind it to a specific adapter.


I need more than one Bluetooth radio, i.e. usb-dongle, each providing
a NAP service, since I am not content with only seven clients in one
piconet. Hence my belief was that I could simply start one pand-daemon
for each dongle and have my system up and running.

To that end I made an alteration to /etc/init.d/bluetooth to 
contain (within start_pand()) essentially

HCIDEVICES="0 1"
HCIBDADDR=(bdaddr0 bdaddr1)  # in numerical values!

if test "$PAND_ENABLED" != "0"; then
  for nr in $HCIDEVICES; do
    start-stop-daemon --start --quiet --exec $PAND_DAEMON -- \
         $PAND_OPTIONS --devup /etc/bluetooth/pan/dev-up \
         --ethernet "bnep$nr%d" --device ${HCIBDADDR[$nr]} \
         --pidfile /var/run/pand.${nr}.pid
    /usr/local/sbin/passkey-agent Buhh ${HCIBDADDR[$nr]} &
  done
  log_progress_msg "pand"
fi


The outcome is that only hci0 is serviced by pand and that it
configures bnep00 at first call. There is no trace of a service
for hci1, neither in the process list, in syslog, nor does it
respond to "pand --connect bdadd1" from a remote machine.

Do you disagree to a need of servicing more than one piconet
from a single machine, or is this not even implemented in the
present day BlueZ-stack? Again, my server runs kernel 2.6.18
with Debian Etch and hence Bluez-utils 3.7. Have the later
issues of Bluez-utils diversified in the above respect?

Best regards,   Mats E A

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