[OpenSER-Devel] [ openser-Bugs-1764906 ] failure route not called when TM/473 filtered

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Bugs item #1764906, was opened at 2007-07-31 23:57
Message generated for change (Comment added) made by bogdan_iancu
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Category: modules
Group: ver 1.2.x
Status: Open
Resolution: Invalid
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Bogdan-Andrei Iancu (bogdan_iancu)
Summary: failure route not called when TM/473 filtered

Initial Comment:
Failure route is not called when destination IP is on the blacklist.  A 473/filtered message is relayed back to the phone immediately.

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>Comment By: Bogdan-Andrei Iancu (bogdan_iancu)
Date: 2007-11-14 19:42

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Hi Phil,

So, the issue is actually to have a mechanism to get the error code in
script. Let me see what I can find....

Regards,
Bogdan

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Comment By: Phil D'Amore (ptdamore)
Date: 2007-11-14 18:06

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The main problem with that mechanism is that when t_relay fails, it
doesn't seem to propogate that 473 back to the script in any way that I can
see.  That makes the blacklist not as useful as it could be in that case. 
The internal ser_error gets the E_IP_BLOCKED value assigned to it.  So, in
my playspace here I tried adding a $ser_error PV to make that thing visible
from the script.  Unfortunately, by the time the script gets it, it's just
got the generic -1 in there.  So, one can't distinguish between "this
destination is filtered, maybe try another one", vs an "abandon all
hope"-type error, whatever that might be.

Is there some way to get that error code from the script?

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Comment By: Bogdan-Andrei Iancu (bogdan_iancu)
Date: 2007-11-14 14:26

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Hi,

The failure route is triggered only if a SIP failure was received (like
negative reply). So, first you need to send out a requests.

The BL filtering is done whenyou try to send out the requests and if it is
filtered, no request will be send, so no failure route.

If a requests is filtered by BL, you will see:
   1) a negative reply automatically being sent out
   2) t_relay() will return with error in script, but only if you set the
0x02 flag for the function (see the documentation).

Please let me know if there are still unclear things.

regards,
bogdan


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Comment By: Lincoln Nogueira (lincolnogueira)
Date: 2007-09-20 21:10

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Yes, I'm having this problem too. Did you find any solution, or is it
really a bug?

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