[SR-Users] '302 Moved temporarily' contact parsing error

[David VILLAUME]

Hi,

Sorry for the noise and thanks for your help, i forgot to exclude the 302 from the relaying in my reply_route.

Regards,
David

From: Daniel-Constantin Mierla <miconda at gmail.com>
Sent: Wednesday, October 14, 2020 9:54 AM
To: David VILLAUME <david.villaume at sewan.fr>; Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: Re: [SR-Users] '302 Moved temporarily' contact parsing error


Hello,

but do you have reply_route or onreply_route[x] where you access the contact with a transformation? Can you give here those lines from your config accessing the contact header?

parse_to_param() is not used by core Contact header parser, thus that can happen only on some config operations...

Cheers,
Daniel
On 14.10.20 09:41, David VILLAUME wrote:
Hi Daniel,

I already use the select for getting the contact, but I still got the error as it happens before the fist line of my failure_route :

Oct 14 09:32:53 fr-kam-misc-lab-vma-1 kamailio[21633]: ERROR: { 2  udp 172.18.0.15 17 REGISTER # 8_466109112 at 10.244.3.114<mailto:8_466109112 at 10.244.3.114> * } <core> [core/parser/parse_addr_spec.c:479]: parse_to_param(): invalid character ',' in status 27: [;q=0.5]
Oct 14 09:32:53 fr-kam-misc-lab-vma-1 kamailio[21633]: INFO: { 1  tcp 65.39.65.250 17 REGISTER # 8_466109112 at 10.244.3.114<mailto:8_466109112 at 10.244.3.114> * } <script>: first line of failure route



Regards,
David

From: sr-users <sr-users-bounces at lists.kamailio.org><mailto:sr-users-bounces at lists.kamailio.org> On Behalf Of Daniel-Constantin Mierla
Sent: Wednesday, October 14, 2020 8:44 AM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org><mailto:sr-users at lists.kamailio.org>
Subject: Re: [SR-Users] '302 Moved temporarily' contact parsing error


Hello,

the Contact header body looks ok, using comma to separate many contact values is ok.

My guess is that {to.body} transformation is used in this case, it is not coming from core or a module. The To header cannot appear many times, thus the transformation is throwing error in this case. If I am right with my guess, a solution is to plug {s.select,0,,} transformation before use of {to.body}. The index of s.select can be a variable, in case one needs to get all contact values, a while loop can be used.

Cheers,
Daniel
On 13.10.20 22:07, Sergiu Pojoga wrote:
Hmm, it's a tricky one, not sure actually.

https://tools.ietf.org/html/rfc3261#page-167

The answer might be in:



Even if the "display-name" is empty, the "name-addr" form MUST be used if the "addr-spec" contains a comma, semicolon, or question mark.

On Tue, Oct 13, 2020 at 3:39 PM Sergiu Pojoga <pojogas at gmail.com<mailto:pojogas at gmail.com>> wrote:
Aren't the Contact params supposed to be delimited by semicolon?

On Tue, Oct 13, 2020 at 1:06 PM David VILLAUME <david.villaume at sewan.fr<mailto:david.villaume at sewan.fr>> wrote:
Hello,

I see parsing errors on 302 contact header that seems compliant to RFC :

Contact:<sip:172.16.0.21:5060>;q=0.5,<sip:172.16.0.22:5060>;q=0.25

<core> [core/parser/parse_addr_spec.c:479]: parse_to_param(): invalid character ',' in status 27: [;q=0.5]

Is there an error in my contact or is it truly a parsing error ?

Regards,
David

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Daniel-Constantin Mierla -- www.asipto.com<http://www.asipto.com>

www.twitter.com/miconda<http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda<http://www.linkedin.com/in/miconda>

Funding: https://www.paypal.me/dcmierla
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