Re: [Bluez-users] Something strange with minicom

Attila Zsigmond

author

2005-04-29 22:03 UTC #0 lore raw

Quoted 2 lines

are you sure that you wanna be in security mode 3. Using auth and
encrypt is not advisable.

I turned off but it makes no difference...

Quoted 3 lines

Make sure that you grep the initial HCI and L2CAP connection setup,
because otherwise hcidump is not able to decode RFCOMM. Or specific
the --psm=3 option on the command line.

Here is a new dump with --psm=3:

HCI sniffer - Bluetooth packet analyzer ver 1.20
device: hci0 snap_len: 1028 filter: 0xffffffff
< ACL data: handle 42 flags 0x02 dlen 9

    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      61

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

01 2A 00 01 00

Quoted 1 line

ACL data: handle 42 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 42 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      74

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

01 2A 00 01 00

Quoted 1 line

ACL data: handle 42 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 42 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      7A

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

01 2A 00 01 00

Quoted 1 line

ACL data: handle 42 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 42 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0D

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

01 2A 00 01 00

Quoted 1 line

ACL data: handle 42 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 42 flags 0x02 dlen 17

    L2CAP(d): cid 0x0040 len 13 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 0 ilen 9 fcs 0x40
      0D 0A 45 52 52 4F 52 0D 0A

I don't see any echoed characters at the end, only the "ERROR" message. But ATZ is a very common modem command and as I wrote earlier, it works with windows hyperterminal. I noticed that I enter only "AT", I got an OK. But any other AT commands don't work.

I'm sorry but I'm a newbe and don't know how to "grep the initial HCI and L2CAP connection setup". Here is my hcid.conf file:

options {
        autoinit yes;
        security auto;
        pairing multi;
        pin_helper /bin/bluepin;
}
device {
        name "Cornflower";
        class 0x3e0100;
        iscan enable; pscan enable;
        lm master;
        lp rswitch,hold,sniff,park;
}

My mobile is a sharp gx15. Here is its "hcitool info" output, maybe it can help:

Requesting information ...
BD Address: 08:00:1F:51:D1:E9
Device Name: Wildrose
LMP Version: 1.1 (0x1) LMP Subversion: 0x460
Manufacturer: Cambridge Silicon Radio (10)
Features: 0xef 0xff 0x0b 0x00 0x00 0x00 0x00 0x00 <3-slot packets> <5-slot packets> <encryption> <slot offset> <role switch> <hold mode> <sniff mode> <park state> <RSSI> <channel quality> <SCO link> <HV2 packets> <HV3 packets> <u-law log> <A-law log> <CVSD> <paging scheme> <transparent SCO>

Please tell me if you need any other info...

Attila

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Marcel Holtmann

maintainer

2005-04-29 23:56 UTC #1 lore raw

Hi Attila,

Quoted 5 lines

Quoted 3 lines
Make sure that you grep the initial HCI and L2CAP connection setup,
because otherwise hcidump is not able to decode RFCOMM. Or specific
the --psm=3 option on the command line.
Here is a new dump with --psm=3:

use "hcidump -X -V --psm=3" so I don't have to decode everything by myself.

Quoted 4 lines

I don't see any echoed characters at the end, only the "ERROR" message. But ATZ is a very common modem command and as I wrote earlier, it works with windows hyperterminal. I noticed that I enter only "AT", I got an OK. But any other AT commands don't work.

The echoing must not be on by default. Enter "ATE1" and see happens.

Quoted 2 lines

I'm sorry but I'm a newbe and don't know how to "grep the initial HCI and L2CAP connection setup".

Start hcidump earlier so it can decode the whole connection setup.

Regards

Marcel

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Attila Zsigmond

author

2005-04-30 18:29 UTC #2 lore raw

Quoted 9 lines · Marcel Holtmann

Hi Attila,
use "hcidump -X -V --psm=3" so I don't have to decode everything by myself.
Start hcidump earlier so it can decode the whole connection setup.
Regards
Marcel

Here is a dump with the parameters suggested. It seems normal for me. I begin to think that this problem is in relation to my sharp gx15 phone configuration and not to bluez. But I'm not sure. What do you think?

HCI sniffer - Bluetooth packet analyzer ver 1.20
device: hci0 snap_len: 1028 filter: 0xffffffff
< ACL data: handle 41 flags 0x02 dlen 12

    L2CAP(d): cid 0x0041 len 8 [psm 3]
      RFCOMM(s): MSC CMD: cr 1 dlci 0 pf 0 ilen 4 fcs 0x70 mcc_len 2
      dlci 2 fc 0 rtc 1 rtr 1 ic 0 dv 0 b1 0 b2 0 b3 0 len 0

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 12

    L2CAP(d): cid 0x0040 len 8 [psm 3]
      RFCOMM(s): MSC RSP: cr 0 dlci 0 pf 0 ilen 4 fcs 0xaa mcc_len 2
      dlci 2 fc 0 rtc 1 rtr 1 ic 0 dv 0 b1 0 b2 0 b3 0 len 0
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 0d                                                .

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 41                                                A
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 54                                                T
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 5a                                                Z
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 0d                                                .

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 17

    L2CAP(d): cid 0x0040 len 13 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 0 ilen 9 fcs 0x40
      0000: 0d 0a 45 52 52 4f 52 0d  0a                       ..ERROR..
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 61                                                a

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 74                                                t

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 0d                                                .

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 14

    L2CAP(d): cid 0x0040 len 10 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 0 ilen 6 fcs 0x40
      0000: 0d 0a 4f 4b 0d 0a                                 ..OK..
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 61                                                a

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 74                                                t

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 2 pf 0 ilen 1 fcs 0x9a
      0000: 0d                                                .

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0040 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 1 ilen 0 fcs 0x5c credits 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 17

    L2CAP(d): cid 0x0040 len 13 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 2 pf 0 ilen 9 fcs 0x40
      0000: 0d 0a 45 52 52 4f 52 0d  0a                       ..ERROR..

Attila

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Marcel Holtmann

maintainer

2005-04-30 19:38 UTC #3 lore raw

Hi Attila,

Quoted 3 lines

Here is a dump with the parameters suggested. It seems normal for me. I begin to think that this problem is in relation to my sharp gx15 phone configuration and not to bluez. But I'm not sure. What do you think?

it looks fine to me, too. Maybe you should try the attest program from the bluez-utils source package.

Regards

Marcel

-------------------------------------------------------
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Attila Zsigmond

author

2005-05-02 10:22 UTC #4 lore raw

Quoted 17 lines · Marcel Holtmann

Hi Attila,
Quoted 4 lines
Here is a dump with the parameters suggested. It seems normal for me. I begin to think that this problem is in relation to my sharp gx15 phone configuration and not to bluez. But I'm not sure. What do you think?
it looks fine to me, too. Maybe you should try the attest program from the bluez-utils source package.
Regards
Marcel

Quoted 10 lines

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Marcel,

Is it possible that this error is caused by a kernel error? You knows it better... I have an old 2.4.24 kernel version. (Old kernel on an old
PC: 700 MHz duron. :-( ) I know I should upgrade both.

Attila

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Marcel Holtmann

maintainer

2005-05-02 10:37 UTC #5 lore raw

Hi Attila,

Quoted 3 lines

Is it possible that this error is caused by a kernel error? You knows it better... I have an old 2.4.24 kernel version. (Old kernel on an old
PC: 700 MHz duron. :-( ) I know I should upgrade both.

I never tried a Samsung phone and maybe they are a little bit buggy, but it can also be a problem of the kernel. The 2.4 series is no longer actively maintained and you should really update to a 2.6 kernel.

Regards

Marcel

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Attila Zsigmond

author

2005-05-02 12:02 UTC #6 lore raw

Quoted 18 lines · Marcel Holtmann

Hi Attila,
Quoted 3 lines
Is it possible that this error is caused by a kernel error? You knows it better... I have an old 2.4.24 kernel version. (Old kernel on an old PC: 700 MHz duron. :-( ) I know I should upgrade both.
I never tried a Samsung phone and maybe they are a little bit buggy, but it can also be a problem of the kernel. The 2.4 series is no longer actively maintained and you should really update to a 2.6 kernel.
Regards
Marcel

Quoted 10 lines

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It isn't a Samsung, it's a Sharp. But that makes no diference, I think. I will get and try a new kernel.

Attila

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Attila Zsigmond

author

2005-06-28 16:16 UTC #7 lore raw

In reply to Marcel Holtmann

It cleared finally. I write this only to help to others. There was no hardware error, no kernel error, no bluez error, no error in the phone. I didn't know about rfcomm channels and I used the default 1 instead of 5, which is for serial port service on sharp GX15 phone.

Attila

Quoted 17 lines · Marcel Holtmann

Hi Attila,
Quoted 1 line
Is it possible that this error is caused by a kernel error? You knows it better... I have an old 2.4.24 kernel version. (Old kernel on an old PC: 700 MHz duron. :-( ) I know I should upgrade both.
I never tried a Samsung phone and maybe they are a little bit buggy, but it can also be a problem of the kernel. The 2.4 series is no longer actively maintained and you should really update to a 2.6 kernel.
Regards
Marcel

Quoted 10 lines

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