[Bluez-users] Need help with PAND between 2 linux boxes

[Bluez-users] Need help with PAND between 2 linux boxes

[Paul Ionescu]

Hi,

I have two linux boxes with FedoraCore 2 installed on both.
Both of them have USB bluetooth adapters.
I have tried to connect them in a NAP - PANU config, as indicated in
http://bluez.sourceforge.net/contrib/HOWTO-PAN, but something is not
working and I can't figure out what.
Here are the details:
service bluetooth start
Then I check with hciconfig that both BT are UP.
Then, on both computers I modprobe bnep.
(one note here, ifconfig -a does not show any bnep0 at this moment)
On both of them launch
hcidump in separate windows to see what is going on. 

On one I launch 
pand --listen --role NAP -n --master
and on the other
pand -c 00:20:E0:73:EB:F7 -n --role PANU

and after some messages in hcidump on both sides, I receive:
pand[1431]: Bluetooth PAN daemon
pand[1431]: Connecting to 00:20:E0:73:EB:F7
pand[1431]: Connect to 00:20:E0:73:EB:F7 failed. Function not implemented(38)

I tried both ways, but the behavior is the same.
Then I tried on one side:
strace pand --listen --role NAP -n --master
but when I try to connect from the other side, nothing happens here.

Do I miss something here ?

Thanks,
Paul




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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Marcel Holtmann]

Hi Paul,

> I have two linux boxes with FedoraCore 2 installed on both.
> Both of them have USB bluetooth adapters.
> I have tried to connect them in a NAP - PANU config, as indicated in
> http://bluez.sourceforge.net/contrib/HOWTO-PAN, but something is not
> working and I can't figure out what.
> Here are the details:
> service bluetooth start
> Then I check with hciconfig that both BT are UP.
> Then, on both computers I modprobe bnep.
> (one note here, ifconfig -a does not show any bnep0 at this moment)
> On both of them launch
> hcidump in separate windows to see what is going on. 
> 
> On one I launch 
> pand --listen --role NAP -n --master
> and on the other
> pand -c 00:20:E0:73:EB:F7 -n --role PANU
> 
> and after some messages in hcidump on both sides, I receive:
> pand[1431]: Bluetooth PAN daemon
> pand[1431]: Connecting to 00:20:E0:73:EB:F7
> pand[1431]: Connect to 00:20:E0:73:EB:F7 failed. Function not implemented(38)

try it without the --master and --role parameters. I think you forgot to
enable the role switch (rswitch) on both sides.

Regards

Marcel




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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Wolfgang Mües]

Hello,

On Monday 16 August 2004 10:34, Marcel Holtmann wrote:
> Hi Paul,
>
> > I have two linux boxes with FedoraCore 2 installed on both.
> > Both of them have USB bluetooth adapters.
> > I have tried to connect them in a NAP - PANU config, as indicated
> > in http://bluez.sourceforge.net/contrib/HOWTO-PAN, but something is
> > not working and I can't figure out what.

> > pand[1431]: Connect to 00:20:E0:73:EB:F7 failed. Function not
> > implemented(38)

I have seen this too... Master = Suse 9.1, Slave = Zaurus C 750.
I have managed to get it working by disabling authentication on the 
master box....

best regards
Wolfgang


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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Paul Ionescu]

Hi Marcel,

I tried without --role and --master parameters and the
same result (pand -s -n on one side and pand -n -c
MAC)
And in /etc/bluetooth/hcid.conf I have
lp hold,sniff,park,rswitch;


--- Marcel Holtmann <marcel@holtmann.org> wrote:
> > On one I launch 
> > pand --listen --role NAP -n --master
> > and on the other
> > pand -c 00:20:E0:73:EB:F7 -n --role PANU
> > 
> > and after some messages in hcidump on both sides,
> I receive:
> > pand[1431]: Bluetooth PAN daemon
> > pand[1431]: Connecting to 00:20:E0:73:EB:F7
> > pand[1431]: Connect to 00:20:E0:73:EB:F7 failed.
> Function not implemented(38)
> 
> try it without the --master and --role parameters. I
> think you forgot to
> enable the role switch (rswitch) on both sides.
> 
> Regards
> 
> Marcel



		
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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Marcel Holtmann]

Hi Paul,

> I tried without --role and --master parameters and the
> same result (pand -s -n on one side and pand -n -c
> MAC)
> And in /etc/bluetooth/hcid.conf I have
> lp hold,sniff,park,rswitch;

show us the content of /etc/bluetooth/hcid.conf and the output of
"hciconfig -a".

Regards

Marcel




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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Paul Ionescu]

[-- Attachment #1: Type: text/plain, Size: 1030 bytes --]

--- Marcel Holtmann <marcel@holtmann.org> wrote:
> show us the content of /etc/bluetooth/hcid.conf and
> the output of
> "hciconfig -a".

Hi Marcel,

Here is the info:
 hciconfig -a
hci0:   Type: USB
        BD Address: 00:20:E0:75:21:DA ACL MTU: 192:8 
SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN 
        RX bytes:200 acl:0 sco:0 events:26 errors:0
        TX bytes:621 acl:0 sco:0 commands:22 errors:0
        Features: 0xff 0xff 0x0f 0x00 0x00 0x00 0x00
0x00
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2
HV3 
        Link policy: RSWITCH HOLD SNIFF PARK 
        Link mode: ACCEPT MASTER 
        Name: 't41-0'
        Class: 0x120104
        Service Classes: Networking, Object Transfer
        Device Class: Computer, Desktop workstation
        HCI Ver: 1.1 (0x1) HCI Rev: 0x222 LMP Ver: 1.1
(0x1) LMP Subver: 0x222
        Manufacturer: Cambridge Silicon Radio (10)




	
		
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[-- Attachment #2: hcid.conf --]
[-- Type: application/octet-stream, Size: 1537 bytes --]

#
# HCI daemon configuration file.
#
# $Id: hcid.conf,v 1.3 2002/07/18 18:12:46 maxk 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 auto;
	security none;
	# 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/bluepin;
	#dbus_pin_helper;

	# A dbus PIN daemon can be found at
	# ftp://ftp.handhelds.org/pub/projects/gpe/source/bluez-pin-0.20.tar.gz
}

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

	# Local device class
	class 0x120104;

	# 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;
	#
	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 hold,sniff;
	#
	lp hold,sniff,park,rswitch;

	# Authentication and Encryption
	auth disable;
	encrypt disable;
}

Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Marcel Holtmann]

Hi Paul,

> Here is the info:
>  hciconfig -a
> hci0:   Type: USB
>         BD Address: 00:20:E0:75:21:DA ACL MTU: 192:8 
> SCO MTU: 64:8
>         UP RUNNING PSCAN ISCAN 
>         RX bytes:200 acl:0 sco:0 events:26 errors:0
>         TX bytes:621 acl:0 sco:0 commands:22 errors:0
>         Features: 0xff 0xff 0x0f 0x00 0x00 0x00 0x00
> 0x00
>         Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2
> HV3 
>         Link policy: RSWITCH HOLD SNIFF PARK 
>         Link mode: ACCEPT MASTER 
>         Name: 't41-0'
>         Class: 0x120104
>         Service Classes: Networking, Object Transfer
>         Device Class: Computer, Desktop workstation
>         HCI Ver: 1.1 (0x1) HCI Rev: 0x222 LMP Ver: 1.1
> (0x1) LMP Subver: 0x222
>         Manufacturer: Cambridge Silicon Radio (10)

leave "security auto;" and use "lm accept;" in hcid.conf. After that you
should read the comment in hcid.conf:

        #   master - become master on incoming connections,
        #            deny role switch on outgoing connections

How can it work if you set "master" on both sides ;)

Regards

Marcel




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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Paul Ionescu]

[-- Attachment #1: Type: text/plain, Size: 1023 bytes --]

--- Marcel Holtmann <marcel@holtmann.org> wrote:
> show us the content of /etc/bluetooth/hcid.conf and
> the output of
> "hciconfig -a".
> 

And from the other side:
 hciconfig -a
hci0:   Type: USB
        BD Address: 00:20:E0:73:EB:F7 ACL MTU: 192:8 
SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN 
        RX bytes:224 acl:0 sco:0 events:28 errors:0
        TX bytes:609 acl:0 sco:0 commands:22 errors:0
        Features: 0xff 0xff 0x0f 0x00 0x00 0x00 0x00
0x00
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2
HV3 
        Link policy: RSWITCH HOLD SNIFF PARK 
        Link mode: ACCEPT MASTER 
        Name: 'r50p-0'
        Class: 0x120104
        Service Classes: Networking, Object Transfer
        Device Class: Computer, Desktop workstation
        HCI Ver: 1.1 (0x1) HCI Rev: 0x222 LMP Ver: 1.1
(0x1) LMP Subver: 0x222
        Manufacturer: Cambridge Silicon Radio (10)




		
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[-- Attachment #2: hcid.conf --]
[-- Type: application/octet-stream, Size: 1538 bytes --]

#
# HCI daemon configuration file.
#
# $Id: hcid.conf,v 1.3 2002/07/18 18:12:46 maxk 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 auto;
	security none;

	# 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/bluepin;
	#dbus_pin_helper;

	# A dbus PIN daemon can be found at
	# ftp://ftp.handhelds.org/pub/projects/gpe/source/bluez-pin-0.20.tar.gz
}

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

	# Local device class
	class 0x120104;

	# 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;
	#
	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 hold,sniff;
	#
	lp hold,sniff,park,rswitch;

	# Authentication and Encryption
	auth disable;
	encrypt disable;
}

Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Marcel Holtmann]

Hi Paul,

> Now it worked just fine.
> Many thanks for the quick help.

you are welcome.

> Now, regarding the docs, I have read the comment in
> hcid.conf, but "master - become master on incoming
> connections, and deny role switch on outgoing
> connections" seemed fine from my point of view.
> I interpreted like "I will be master for all incoming
> conections, and I will deny role switch for all
> outgoing connection" which seemed fine from my point
> of view.

And if both sides do it this way it can't work. Think about it and you
understand it. Remember that the connection initiator is the master in
the first place.

> I could not see what I was wrong from
> http://bluez.sourceforge.net/contrib/HOWTO-PAN.
> and not even from 
> http://fedoranews.org/contributors/muhammad_al_ismail/bluetooth/
> which claims to be a FC2 setup.

I don't wrote these two. Contact the authors.

> And now I have another question:
> After using the pand, I finished the transfers, I
> shutted down the bluetooth service, ifconfig bnep0
> down, and I wanted to "rmmod bnep".
> But rmmod bnep gives:
> ERROR: Module bnep is in use
> And indeed is in use by "ps xa|grep bnep" :
> 2660 ?        SW<    0:00 [kbnepd bnep0]
> 
> Is this normal ?

Yes, because "ifconfig bnep0 down" doesn't kill the BNEP connection
between these two devices. Try to run "pand -K".

Regards

Marcel




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Re: [Bluez-users] Need help with PAND between 2 linux boxes

[Paul Ionescu]

Hi Marcel,

--- Marcel Holtmann <marcel@holtmann.org> wrote:
> > ifconfig bnep0
> > down, and I wanted to "rmmod bnep".
> > But rmmod bnep gives:
> > ERROR: Module bnep is in use
> > And indeed is in use by "ps xa|grep bnep" :
> > 2660 ?        SW<    0:00 [kbnepd bnep0]
> > 
> > Is this normal ?
> 
> Yes, because "ifconfig bnep0 down" doesn't kill the
> BNEP connection
> between these two devices. Try to run "pand -K".

It worked flawlessly with "pand -K".
And thanks again, your answers were like instant.

Paul,
A happy now pan with bluez user.


		
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