register HID with SDP error

[Waitman Gobble]

On Tue, Mar 17, 2015 at 11:33 AM, Maksim Yevmenkin
<maksim.yevmenkin at gmail.com> wrote:
> On Tue, Mar 17, 2015 at 11:20 AM, Iain Hibbert <plunky at ogmig.net> wrote:
>> On Tue, 17 Mar 2015, Waitman Gobble wrote:
>>
>>> hcidump log https://gist.github.com/waitman/c3f8a3bc9b046e36dbb5
>>
>> Kind of unrelatedly, from that log, the Linux machine requests a search
>> for Protocol UUID 0x0100 (L2CAP) but gets nothing in return..
>>
>>> ACL data: handle 0x0048 flags 0x02 dlen 24
>>     L2CAP(d): cid 0x44 len 20 [psm 1]
>>       SDP SSA Req: tid 0x0 len 0xf
>>         pat uuid-16 0x0100 (L2CAP)
>>         max 0xffff
>>         aid(s) 0x0000 - 0xffff
>>         cont 00
>> < ACL data: handle 0x0048 flags 0x02 dlen 15
>>     L2CAP(d): cid 0x40 len 11 [psm 1]
>>       SDP SSA Rsp: tid 0x0 len 0x6
>>         cnt 0x3
>>         cont 00
>>
>> ..does the SDP server not return results for that, Max?
>
> well, i don't think i ever got around to adding a feature that looks
> for uuid inside records. it currently only matches service class
> uuid's. so, yes, query for l2cap uuid will return nothing currently.
> its trivial to add this though. i think i even have a patch somewhere.
>
> [...]
>
>> btw .. if you use sdpcontrol(1) to query the local SDP server (see -l)
>> then hcidump will not see anything of the interchange, since it does not
>> go through the Bluetooth stack.
>
> absolutely correct
>
> thanks,
> max


I'm tracking down a client connection problem, maybe this is causing
the issue... checking it out.

https://gist.github.com/waitman/c51ea08ebb6a2898f33f

client gives up and never opens PSM channel 17 or 19

I did notice some clients request 0x1200 'pnp info' so I added
SDP_SERVICE_CLASS_PNP_DEVICE handler to sdpd to see what would happen.
The code is here -> https://github.com/waitman/sdpd/blob/master/pnp.c
But the configuration parameters should be set by the request, not
hardcoded into pnp.c (also hid.c should be fixed)




-- 
Waitman Gobble
Los Altos California USA
510-830-7975