Re: SMPP reconnection on invalid username/password

Peter Christensen <[email protected]>
Newsgroups gmane.comp.mobile.kannel.devel,gmane.spam.detected
Message-ID <[email protected]>
Hi,

Yes, I agree that the behavior is the ideal one. But I think it is 
confusing to the user that the log says "Re-connecting" and bearerbox 
reports the state of the gateway as "reconnecting" (When requesting 
status/status.xml/status.html), while it should actually be dead.

Alexander Malysh wrote:
> Hi,
> 
> yes it really intentional. if SMSC returns such error and your 
> system_id/password are correct then it's SMSC bug! Imagine SMSC could 
> not retrieve your login data for some reason it should never claim your 
> system_id or password is wrong (for this purpose exists Bind Failed)!
> 
> Why kannel has such behavior: because some SMSCs suspend (security 
> issue) your account when you unintentionally supplied wrong system_id or 
> password. And then you have to contact support and explain something 
> etc. etc. It's just good behavior to not to abuse SMSC...
> 
> 
> Thanks,
> Alex
> 
> 
> Peter Christensen schrieb:
>> Hi,
>>
>> I've been experiencing problems where kannel at some time no longer 
>> attempts to reconnect a gateway, which is down. Here's what basically 
>> happens (gateway name and address is replaced with fake name/address):
>>
>> ERROR: System error 111: Connection refused
>> ERROR: error connecting to server `1.2.3.4' at port `2775'
>> ERROR: SMPP[gateway]: Couldn't connect to server.
>> ERROR: SMPP[gateway]: Couldn't connect to SMS center (retrying in 10 
>> seconds).
>> ERROR: connect failed
>> ERROR: System error 111: Connection refused
>> ERROR: error connecting to server `1.2.3.4' at port `2775'
>> ERROR: SMPP[gateway]: Couldn't connect to server.
>> ERROR: SMPP[gateway]: Couldn't connect to SMS center (retrying in 10 
>> seconds).
>> WARNING: SMPP: PDU NULL terminated string has no NULL.
>> ERROR: SMPP[gateway]: SMSC rejected login to transmit, code 0x0000000f 
>> (Invalid System ID).
>> ERROR: SMPP[gateway]: I/O error or other error. Re-connecting.
>>
>> Although kannel claim to be reconnect when the login was invalid, this 
>> never occurs. The thread terminates, but bearerbox still report the 
>> state of the gateway as "reconnecting".
>>
>> When examining the code, it is very obvious that the SMPP gateway code 
>> is meant to terminate when login is rejected:
>>
>>
>> gateway/gw/smsc/smsc_smpp.c:1468
>>                 if (pdu->u.bind_transmitter_resp.command_status == 
>> SMPP_ESME_RINVSYSID ||
>>                     pdu->u.bind_transmitter_resp.command_status == 
>> SMPP_ESME_RINVPASWD)
>>                     smpp->quitting = 1;
>>
>>
>> gateway/gw/smsc/smsc_smpp.c:1488
>>                 if (pdu->u.bind_transceiver_resp.command_status == 
>> SMPP_ESME_RINVSYSID ||
>>                     pdu->u.bind_transceiver_resp.command_status == 
>> SMPP_ESME_RINVPASWD)
>>                     smpp->quitting = 1;
>>
>>
>> Is this really intentional? And if so, isn't it then wrong to say 
>> claim that kannel will reconnect?
>>
>>
>> Med venlig hilsen / Best regards
>>
>> Peter Christensen
>>
>> Developer
>> ------------------
>> Cool Systems ApS
>>
>> Tel: +45 2888 1600
>>  @ : [email protected]
>> www: www.coolsystems.dk
>>
>>
> 
>
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