[OpenSIPS-Devel] PROTO numbers

[Ben Newlin]

You may not have any TLS in your network, but the error is about sending, not receiving. Have you checked the Request-URI, Route headers, and Contact headers to ensure there is no “transport=tls” parameters that would make OpenSIPS believe the request should be sent via TLS?

Proto 3 is TLS, unless I am very confused: https://github.com/OpenSIPS/opensips/blob/master/ip_addr.h#L52

Ben Newlin

From: Devel <devel-bounces at lists.opensips.org> on behalf of Donat Zenichev <donat.zenichev at gmail.com>
Reply-To: OpenSIPS devel mailling list <devel at lists.opensips.org>
Date: Monday, April 8, 2019 at 10:17 AM
To: OpenSIPS devel mailling list <devel at lists.opensips.org>
Subject: Re: [OpenSIPS-Devel] PROTO numbers

That's a good explanation, I believe they use socket.h for socket(), bind(), connect(), recv(), send() etc.
In this case it's definitely, that AF just sticks with numbers defined by the IANA.

" I think that proto 3 in OpenSIPS is TLS, but I don’t have a reference for that one." - I have doubts regarding this, since I don't have any TLS in my network.
To be honestly it's almost impossible that TLS would appear within it.
But that's a good thought, I hope some of OpenSIPS project developers will clear our this for me.

пн, 8 апр. 2019 г. в 16:46, Ben Newlin <Ben.Newlin at genesys.com<mailto:Ben.Newlin at genesys.com>>:
I believe Address Family (AF) 2 is IPv6 [1].

The protocol number is not the index of the listener, it refers to the actual protocol being used. I think that proto 3 in OpenSIPS is TLS, but I don’t have a reference for that one.

So the error is saying you are attempting to send a message to an IPv6 address using TLS, but you have no listener defined for that combination.

[1] - https://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml<https://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml>

Ben Newlin

From: Devel <devel-bounces at lists.opensips.org<mailto:devel-bounces at lists.opensips.org>> on behalf of Donat Zenichev <donat.zenichev at gmail.com<mailto:donat.zenichev at gmail.com>>
Reply-To: OpenSIPS devel mailling list <devel at lists.opensips.org<mailto:devel at lists.opensips.org>>
Date: Monday, April 8, 2019 at 8:39 AM
To: "devel at lists.opensips.org<mailto:devel at lists.opensips.org>" <devel at lists.opensips.org<mailto:devel at lists.opensips.org>>
Subject: [OpenSIPS-Devel] PROTO numbers

Hi there.
Lately I came across such messages in opensips logs:

"ERROR:tm:update_uac_dst: failed to fwd to af 2, proto 3 (no corresponding listening socket)"

The error is pretty descriptive and says that certain request is unable to be forwarded, since of absence of needed socket. But I cannot get what means:

"to af 2" - I found, that it's a member of this structure uac->request.dst.to.s.sa_family   ,
but still no wonder what means number "2".

And "proto 3" - does it correlate to a number of a listener defined in my openips configuration file? And if yes, does the count starts at 0 or at 1 ?

Thanks for help in advance!





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BR, Donat Zenichev
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