Hi, Răzvan. Thanks for your reply. According to your advice, I try to do something like this:
$var(aline) = $(rb{sdp.line,a,9}); subst_body("/(a=crypto:1)+(.*)$/$var(aline)/" ); But I don't know, how to add changed SDP as a result of "subst_body" execution into certain pvar. I could get only execution code, not an SDP. If I add the string "rtpengine_offer("RTP/SAVP ICE=remove", ,"$var(body)");" next to the script above, I get a crypto string what I need, but everything else SDP strings takes from UA's original SDP (IPs, media ports etc). What do I do wrong? Best Regards, Sergey Pysanko. [image: Mailtrack] <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> Sender notified by Mailtrack <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> 01/21/22, 11:32:02 AM ср, 19 янв. 2022 г. в 13:29, Răzvan Crainea <raz...@opensips.org>: > Hi, Sergey! > > Rtpengine uses by default the SDP received in the message, it does not > take into account any "local" changes you make. > What you can try is to replace the body and get the result in a pvar, > and then pass that pvar to the rtpengine_offer function[1], 3rd parameter. > > [1] > https://opensips.org/html/docs/modules/3.2.x/rtpengine#func_rtpengine_offer > > Best regards, > > Răzvan Crainea > OpenSIPS Core Developer > http://www.opensips-solutions.com > > On 1/18/22 19:37, Sergey Pisanko wrote: > > > > I tried to remove crypto strings that's not needed with "replace_body()" > > function before rtpengine execution.. And I got the string what I need. > > But despite this, when rtpengine is applied and proxy relays message to > > UA2, rtpengine adds a string what I got rid from SDP on the previous > > step. And I don't have any idea, from where rtpengine get crypto string > > in a changed body. Here is what the script in this part looks like: > > > > branch_route[invite_to_pbx] { > > xlog("outgoing to pbx"); > > if(has_body("application/sdp")) { > > if (replace_body_all("a=crypto:([1-9])+( AES_CM_256)+(.*)$", > > "")) { > > xlog("Replaced"); > > } > > rtpengine_offer("RTP/SAVP ICE=remove")); > > } > > } > > > > I also tried to execute this in a request route, but without changing. > > > > Can you help me to understand why rtpengine ignores changed SDP? Is my > > script logic correct? > > > > Best regards, > > Sergey Pysanko. > > Mailtrack > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> > > > Sender notified by > > Mailtrack > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11&> > > > 01/18/22, 07:13:23 PM > > > > > > пт, 14 янв. 2022 г. в 17:30, Sergey Pisanko <ser...@yandex.ru > > <mailto:ser...@yandex.ru>>: > > > > Hello. > > > > I've faced an issue when using rtpengine module with tls transport. > > When UA originates a call it pointed set of crypto > > parameters in SDP, like that: > > > > a=crypto:1 AES_CM_256_HMAC_SHA1_80 > > > inline:PZASLY5HoxVo6Ljz2niwxqNJ+3A2mW71SgfL75cRFtShKQIvcKVF2Y39zGd1fQ== > > a=crypto:2 AES_CM_256_HMAC_SHA1_32 > > > inline:LRjGKIj8wvfxDP68+5XOEmlvO2ufqxDkhJ3hUQRWzjFulFr2kBztgSjrPSSACw== > > a=crypto:3 AES_CM_128_HMAC_SHA1_80 > > inline:Nup7cVUaHGb+oQPf8gg1wDmjVJOZ5K+HZdhyovzz > > a=crypto:4 AES_CM_128_HMAC_SHA1_32 > > inline:rjLdKaMyQ7+YQWCcIFKkVRLd+GZxkUogGK/4i1L0 > > > > But when Opensips relays original message to UA2, rtpengine removes > > all the crypto suite strings except the first one. > > Unfortunately, there is no way to configure client's behaivior to > > send certain crypto suite. > > In other side, UA2, that is PBX, doesn't support all crypto suites > > except AES_CM_128_HMAC_SHA1_80 > > Is there a way to configure Opensips/rtpengine to choose specific > > crypto string or to leave crypto set without changing at all? > > > > Best Regards, > > Sergey Pysanko. > > > > > > > > Mailtrack > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11& > > > > Sender notified by > > Mailtrack > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality11& > > > > 01/14/22, 05:28:49 PM > > > > > > _______________________________________________ > > Users mailing list > > Users@lists.opensips.org > > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > > _______________________________________________ > Users mailing list > Users@lists.opensips.org > http://lists.opensips.org/cgi-bin/mailman/listinfo/users >
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