Re: [Bluez-users] problem adding 1284 ID SDP attribute

[oj ravadilla <ojravadilla@yahoo.com>]

Hi Marcel,

I'm still having problems with the 1248 id. I already
used the bluez-lib-2.23 function
sdp_data_alloc_with_length for this. Im seeing nothing
still in my 1248 id. 

Her is the hcidump:

/root # hcidump -X -V
HCI sniffer - Bluetooth packet analyzer ver 1.23
device: hci0 snap_len: 1028 filter: 0xffffffff
> HCI Event: Connect Request (0x04) plen 10
    bdaddr 00:02:EE:3C:B0:9A class 0x502204 type ACL
< HCI Command: Accept Connection Request (0x01|0x0009)
plen 7
    bdaddr 00:02:EE:3C:B0:9A role 0x01
    Role: Slave
> HCI Event: Command Status (0x0f) plen 4
    Accept Connection Request (0x01|0x0009) status
0x00 ncmd 1
> HCI Event: Connect Complete (0x03) plen 11
    status 0x00 handle 41 bdaddr 00:02:EE:3C:B0:9A
type ACL encrypt 0x00
< HCI Command: Change Connection Packet Type
(0x01|0x000f) plen 4
    handle 41 ptype 0xcc18
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
> HCI Event: Page Scan Repetition Mode Change (0x20)
plen 7
    bdaddr 00:02:EE:3C:B0:9A mode 1
> HCI Event: Command Status (0x0f) plen 4
    Change Connection Packet Type (0x01|0x000f) status
0x00 ncmd 1
> HCI Event: Connection Packet Type Changed (0x1d)
plen 5
    status 0x00 handle 41 ptype 0xcc18
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5
> ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 1 scid 0x0072
< ACL data: handle 41 flags 0x02 dlen 16
    L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0072
result 0 status 0
      Connection successful
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 41 packets 1
> ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen
0
< ACL data: handle 41 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0072 flags 0x00
result 0 clen 0
      Success
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Config req: dcid 0x0072 flags 0x00 clen
0
> HCI Event: Max Slots Change (0x1b) plen 3
    handle 41 slots 5
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 41 packets 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 41 packets 1
> ACL data: handle 41 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x0040 flags 0x00
result 0 clen 0
      Success
> ACL data: handle 41 flags 0x02 dlen 17
    L2CAP(d): cid 0x0040 len 13 [psm 1]
        SDP SS Req: tid 0x1 len 0x8
          pat uuid-16 0x1118
          max 65535
          cont 00
< ACL data: handle 41 flags 0x02 dlen 18
    L2CAP(d): cid 0x0072 len 14 [psm 1]
        SDP SS Rsp: tid 0x1 len 0x9
          count 1
          handle 0x10001
          cont 00
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 41 packets 1
> ACL data: handle 41 flags 0x02 dlen 33
    L2CAP(d): cid 0x0040 len 29 [psm 1]
        SDP SA Req: tid 0x2 len 0x18
          handle 0x10001
          max 1024
          aid(s) 0x0004 (ProtocolDescList) 0x000d
(IconURL) 0x0350 (unknown) 0x0358 (unknown) 0x035a
(unknown)
          cont 00
< ACL data: handle 41 flags 0x02 dlen 192
< ACL data: handle 41 flags 0x01 dlen 45
    L2CAP(d): cid 0x0072 len 233 [psm 1]
        SDP SA Rsp: tid 0x2 len 0xe4
          count 225
          aid 0x0004 (ProtocolDescList)
             < < uuid-16 0x0100 (L2CAP) > <
             uuid-16 0x0003 (RFCOMM) uint 0x2 > <
             uuid-16 0x0008 (OBEX) > >
          aid 0x000d (IconURL)
             < < uuid-16 0x0100 (L2CAP) > < uuid-16
0x0003 (RFCOMM) uint 0x3 > < uuid-16 0x0008 (OBEX) > >
          aid 0x0350 (unknown)
             str
"application/vnd.pwg-xhtml-print+xml:0.95,application/vnd.pwg-multiplexed"
          aid 0x0358 (unknown)
             str ""
          aid 0x035a (unknown)
             str "My-Bluetooth"
          cont 00
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 41 packets 2
> ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Disconn req: dcid 0x0040 scid 0x0072
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Disconn rsp: dcid 0x0040 scid 0x0072
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 41 packets 1
> HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 41 reason 0x13
    Reason: Remote User Terminated Connection


_________
As seen in the trace --  aid 0x0358 (unknown) is blank
or data is nothing. Do you have any idea whats the
problem? How do I solve this problem? 

Thanks for your time.

OJ


 

--- oj ravadilla <ojravadilla@yahoo.com> wrote:

> Hi Marcel,
> 
> I'm having problems like this too. I cant add a 1248
> id because of 0x00 that I assume is interpreted by
> the
> bluezstack as a null terminator. 
> 
> Thanks!
> 
> --- Arch Sayo <a12chi@yahoo.com> wrote:
> 
> > Hi Marcel,
> >    
> >   I am having a problem adding the 1284ID
> attribute.
> > The 1284ID is of type String. (So I use
> > SDP_TEXT_STR8) However, the first 2 characters of
> > this string are to be interpreted as a 2-byte
> length
> > field. The length of my string is 80 which is
> 0x0050
> > in HEXADECIMAL. So when I add it as a string, the
> > SDP function interprets the 1st byte as a null
> > terminator and sends an empty string.
> >    
> >   I tried increasing the length of my string to
> > 0x0101 to avoid a 0x00 byte. However, this cannot
> be
> > done since the maximum length for an SDP_TEXT_STR8
> > is only 255 which is 0x00FF.
> >    
> >   In this case, how will I be able to add a 1284ID
> > string attribute whose length field contains a
> 0x00
> > byte?
> >    
> >   Thanks,
> >   Arch Sayo
> > 
> > 			
> > ---------------------------------
> > Yahoo! Shopping
> >  Find Great Deals on Holiday Gifts at Yahoo!
> > Shopping 
> 
> 
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