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
---------------------------------
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Hi,
> 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:
>
> > 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
> _________
> 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?
I might haven't fixed the parts in hcidump to deal with binary strings.
Add the 1284 ID with your tool and then run "sdptool browse --raw local"
to see what has been added to the SDP server.
Regards
Marcel
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Hi Marcel,
Just to add.. If I dont use 0x00 to my 1248 id, it
works. But If I put a 0x00 to the data it wont work.
So I guess it is a problem considering that the first
two bytes is the length of the id and for the first
byte not to be 0x00 I should give a data that the
length is more the 255. for the first to bytes not to
be 0x00, the lowest that i can to use is 0x01 and
0x01... this is equal to 257. Is there a way to
correct this problem?
Thanks for your time.
OJ
--- oj ravadilla <[email protected]> wrote:
> 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 <[email protected]> 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 <[email protected]> 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
> >
>
=== message truncated ===
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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 <[email protected]> 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 <[email protected]> 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
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam
> protection around
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>
>
>
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Hi Arch,
> 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?
last week ago or so, Collin ran into the same problem with the HID
report descriptor. It is also a binary string. With bluez-libs-2.23 you
can use sdp_data_alloc_with_length() to specify the length of the string
and then it should work fine.
Regards
Marcel
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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 <[email protected]> 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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