RE: Notice of issue in SMPP Driver

Hi Indrek,

I submitted a patch for this issue but have heard no feedback about it, 
you should be able to find it in the message archives.

Someone else has implemented a patch also but I do not know if they 
have made it available to kannel.

cheers,
Michael.

ANAM Wireless Internet Solutions
http://www.anam.com mailto:[email protected]
+353 1 284 7555 
Castle Yard, Saint Patrick's Road, Dalkey, County Dublin, Ireland 

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Indrek Mandre
> Sent: 21 January 2003 17:40
> To: [email protected]
> Cc: [email protected]
> Subject: Re: Notice of issue in SMPP Driver
> 
> 
> Is there a patch for this?  What is the status of this bug? 
> And the race 
> condition?
> I've had cases of similar behaviour where the driver fails to send 
> messages out
> and nothing else but a restart helps.
> 
> I understood from the following messages that this is a 
> fundamental problem
> with the smpp driver. How to fix this?
> 
> Regards,
> Indrek
> 
> 
> Michael Mulcahy wrote:
> 
> >Hi All,
> >
> >There is a bug in the current SMPP driver that stops the driver from
> >accepting messages to be submitted to the SMSC.
> >
> >Scenario:
> >SMPP SMSC configured as receiver and transmitter, transmitter and
> >receiver connected and bound successfully.
> >1) Receiver SMPP connection disconnects
> >2) SMPP SMSC status changed to SMSCCONN_RECONNECTING
> >3) Receiver SMPP connection reconnects to SMSC after reconnect delay
> >   and sends bind_receiver pdu
> >4) In handling of bind_receiver_resp the status is incorrectly set to
> >   SMSCCONN_ACTIVE_RECV as the previous status was 
> SMSCCONN_RECONNECTING
> >   (This does not take into account that the transmitter is still
> >successfully
> >   connected)
> >5) Now the driver cannot receive any messages for submission to SMSC
> >   as status is not SMSCCONN_ACTIVE.
> >
> >There also appears to be a potential race condition in the
> >handling of the bind_transmitter_resp and the 
> bind_receiver_resp pdus,
> >the status variable is modified in both places and is not protected.
> >
> >Regards,
> >Michael Mulcahy.
> >
> >ANAM Wireless Internet Solutions
> >http://www.anam.com mailto:[email protected]
> >+353 1 284 7555
> >Castle Yard, Saint Patrick's Road, Dalkey, County Dublin, Ireland
> >
> >
> >  
> >
>