Yes, i investigated the functions being called and some of them were named
with Multicast. Please find the functions being called for SLPFindSrvs.
SLPFindSrvs -> ProcessSrvRqst
-> NetworkMcastRqstRply,-> NetworkMcastRqstRply
-> CollateToSLPSrvURLCallback
*MI_NOT_SUPPORTED is not defined anywhere in the code. But conditional
macros are using it as "not defined then adds logic & if defined does
nothing".*
**
Please help me to discover slp services using UA.
Cheers,
Janakiram
On Thu, Sep 22, 2011 at 12:12 AM, Nick Wagner <ne...@wingedbeast.org> wrote:
> For user agent functionality, libslp does first look for directory agents
> to connect to and query. But in the absence of a DA, libslp attempts
> multicast requests. Do you see such multicast requests on the wire? Is
> MI_NOT_SUPPORTED undefined (If defined, multicast is not compiled in)?
>
> --Nick
>
>
> On Wed, Sep 21, 2011 at 12:17 PM, JanakiRam Palepu <
> palepujanaki...@gmail.com> wrote:
>
>> Hi Nick,
>>
>> My Requirement is to have a iOS Application to discover the enter devices
>> without using Slpd ( as iOS cannot run processes such as Slpd due to its
>> Sanbox nature ).
>>
>> In our environment we have a configured Mac ( having iOS Simulator ) and
>> Entertainment Devices only in our LAN.
>>
>> After compiling the code , make install produced a static library as well
>> as header file and couple of resources ( slp.conf & slp.spi ) .
>>
>> We have created a Sample iOS application which uses libslp.a ( static
>> library ) , resources ( slp.conf & slp.spi ) and header file ( slp.h ).
>> Using the functions exposed in slp.h , we are making calls to SLPFindSrvs
>> function.
>>
>> *Steps :*
>> 1. Created a SLP Handle using SLPOpen.
>> 2, After successful creation , calling SLPFindSrvs function with following
>> Parameters.
>>
>> a) srvType : service:acn.esta
>> b) scopelist : ACN-DEFAULT OR NULL
>> c) filter : NULL
>>
>> 3. SLPFindSrvs Callback function gets called always but with varied
>> results.
>>
>> a) When Slpd Co-existed in Mac OS , Callback function discovered the
>> services available.
>> b) In the absence of Slpd , Callback function gets called only once with
>> "errorCode" value SLP_LAST_CALL whic does not discover the service at all.
>>
>>
>> I suspect the libslp functions are heavily depend on Slpd existence. Am i
>> wrong ??.
>>
>> Please help me to analyze the behavior of this function based on slpd
>> existence.
>>
>> Thanks,
>> Janakiram
>>
>> On Tue, Sep 20, 2011 at 8:31 PM, Nick Wagner <ne...@wingedbeast.org>wrote:
>>
>>> Hmm.. Could you get a wireshark trace of this? I'm curious to see if
>>> any multicast is happening.
>>>
>>> Oh, and I'm glad to see the "service:acn.esta" in the example. I work at
>>> ETC. :)
>>>
>>> --Nick
>>>
>>>
>>>
>>> On Tue, Sep 20, 2011 at 9:31 AM, sudheer dantuluri <
>>> dantuluri.sudh...@gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> We have successfully compiled the openSLP2.0beta2 source code for iOS
>>>> and with your instruction written a sample application to find out list of
>>>> services available on the local network -- to do this we have used slp.h
>>>> and
>>>> libslp.a files created by GNU Make process.
>>>>
>>>> PFA Example file for the sample code.
>>>>
>>>> My Environment Setup has an iPhone Simulator and one Entertainment
>>>> Device ( Wireless Audio Receiver exposing SLP service ), only these two are
>>>> connected in LAN.
>>>>
>>>> The Same code (SLPFindSrvs callback function ) behaves differently when
>>>> its executed along with/without slpd tool.
>>>>
>>>> Output when *SLPD is running* when Sample Code is Executed.
>>>>
>>>> -----------------------------------------------------------------------------------------
>>>>
>>>> *2011-09-20 17:29:49.739 openSLPExample[6105:207] Service Type =
>>>> service:acn.esta*
>>>>
>>>> *2011-09-20 17:29:49.739 openSLPExample[6105:207] Host Identification
>>>> = *
>>>>
>>>> *2011-09-20 17:29:49.740 openSLPExample[6105:207] Port Number = 0*
>>>>
>>>> *2011-09-20 17:29:49.740 openSLPExample[6105:207] Family = IP*
>>>>
>>>> *2011-09-20 17:29:49.740 openSLPExample[6105:207] URL Remainder =
>>>> DD200C02-0000-11DD-A000-000EDDCCCCCC*
>>>>
>>>> *
>>>> *
>>>>
>>>> Output when *SLPD is NOT RUNNING* when Sample Code is Executed.
>>>>
>>>> -----------------------------------------------------------------------------------------
>>>>
>>>> *2011-09-20 17:31:13.968 openSLPExample[6137:207]
>>>> ***********************************************
>>>>
>>>> *2011-09-20 17:31:13.969 openSLPExample[6137:207] MySLPSrvURLCallback
>>>> Error Code is = 1*
>>>>
>>>> *2011-09-20 17:31:13.970 openSLPExample[6137:207]
>>>> ***********************************************
>>>> *
>>>> *
>>>> ********************
>>>>
>>>> I suspect my sample code is internally taking the help of SLPD ( meaning
>>>> DA) to discover the slp service exposed by the entertainment device. So
>>>> thats why its showing the output only when the slpd is running.
>>>>
>>>> Problem with my environment is in iOS we cannot run the process such as
>>>> slpd as its sanboxed. I can only use the static library and header file to
>>>> discover the slp services.
>>>>
>>>> Please help me to resolve the issues.
>>>>
>>>>
>>>> Thanks
>>>> Sudheer
>>>>
>>>
>>>
>>>
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>>
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