[SR-Users] Remove/Append headers in 200 canceling and 200 ok to BYE

Daniel-Constantin Mierla miconda at gmail.com
Mon Jan 16 15:31:19 CET 2017


Hello,

ok -- good that you could get what you need.

As extra details that might be useful for you or others.

Removing headers from received requests or replies can be done in two
places:

  - inside request_route { ... } for requests

  - inside reply_route { ... } for replies

The replies generated by Kamailio should have only required headers by
SIP, if you want to add more, you have to use append_to_reply() function
from textops module.

Cheers,
Daniel

On 16/01/2017 13:56, Diego Nadares wrote:
> Hi Daniel,
>
> With the minimal it's great. The headers are the ones that we can
> show. Now we are using the server_header and with this it's complete.
>
> Thanks!
>
> Diego.
>
> 2017-01-16 5:31 GMT-03:00 Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>:
>
>     The 200ok for CANCEL generated by Kamailio doesn't get inside the
>     onreply_route -- this block is only for SIP replies received by
>     kamailio.
>
>     However, the 200ok for CANCEL should have limited (minimal) number
>     of headers. Which ones besides the Server do you want to remove?
>
>     Cheers,
>     Daniel
>
>     On 13/01/2017 19:00, Diego Nadares wrote:
>>     Thanks Sergey! It works like a charm for BYEs.
>>
>>     Is it working for you on 200cancelling generated by Kamailio?
>>
>>     I tried the same work around with no success. 
>>
>>      if (is_method("CANCEL")) {
>>                     if (t_check_trans()) {
>>                             if(!t_is_set("onreply_route"))
>>                                                
>>     t_on_reply("MANAGE_REPLY_ON_CANCEL");
>>                             route(RELAY);
>>                     }
>>                     exit;
>>             }
>>
>>
>>     Thanks again,
>>
>>     Diego
>>
>>
>>
>>     2017-01-13 13:27 GMT-03:00 Sergey Basov <sergey.v.basov at gmail.com
>>     <mailto:sergey.v.basov at gmail.com>>:
>>
>>         Hi All. 
>>
>>         I have similar task. But i have to remove server and
>>         user-agent headers from all request an replyes. 
>>
>>         You can try:
>>
>>
>>         I have added route:
>>         # Fix user-agent and server
>>         route[RemoveHeader] {
>>                 remove_hf("server");
>>                 remove_hf("user-agent");
>>                 return;
>>         }
>>
>>
>>         I use it form
>>         request_route {
>>         ....
>>         route(RemoveHeader);
>>         .....
>>         }
>>
>>         failure_route[--- all what i have ---] {
>>         ....
>>         route(RemoveHeader);
>>         .....
>>         }
>>
>>         branch_route[MANAGE_BRANCH]{
>>         ....
>>         route(RemoveHeader);
>>         .....
>>         }
>>
>>         onreply_route[MANAGE_REPLY] {
>>         ....
>>         route(RemoveHeader);
>>         .....
>>         }
>>
>>         failure_route[MANAGE_FAILURE] {
>>         ....
>>         route(RemoveHeader);
>>         .....
>>         }
>>
>>         Seems all is fine It removes headers in all packets except
>>         200 OK on BYE....
>>         After debugging script I does not seen in which route this
>>         200 Ok goes..
>>         But if I adding next to
>>         route[RELAY] {
>>         ....
>>                 if (is_method("BYE")) {
>>                         xlog("L_INFO","route RELAY method BYE \n");
>>                         if(!t_is_set("onreply_route"))
>>         t_on_reply("MANAGE_REPLY_ON_BYE");
>>                 }
>>         .......
>>         }
>>
>>         and adding route
>>         onreply_route[MANAGE_REPLY_ON_BYE] {
>>                 route(RemoveHeader);
>>                 xlog("L_INFO","route MANAGE_REPLY_ON_BYE entered \n");
>>         }
>>
>>         this 200 Ok successfully goes to MANAGE_REPLY_ON_BYE route
>>         and headers
>>         are removed.
>>
>>
>>
>>         13 янв. 2017 г. 4:59 PM пользователь "Diego Nadares"
>>         <dnadares at gmail.com <mailto:dnadares at gmail.com>> написал:
>>
>>             If you need any additional data please let me know.
>>
>>             Cheers,
>>
>>             Diego
>>
>>             2017-01-12 15:04 GMT-03:00 Diego Nadares
>>             <dnadares at gmail.com <mailto:dnadares at gmail.com>>:
>>
>>                 Hi Daniel!
>>
>>                 Thanks for your answer.  The idea is to show only a
>>                 few headers. In BYE works great. I'm removing and
>>                 adding the following hdrs:
>>                 *
>>                 *
>>                 *User-Agent: Kamailio. <---I will try what you said*
>>                 *Supported:.*
>>                 *Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, NOTIFY, INFO.*
>>                 *Accept: application/sdp, application/gtd.*
>>
>>                 For example in following messages ( Kamailio is
>>                 172.16.213.38)
>>
>>                 #
>>                 U 2017/01/12 14:51:10.593782 172.16.200.159:57270
>>                 <http://172.16.200.159:57270> -> 172.16.213.38:5060
>>                 <http://172.16.213.38:5060>
>>                 BYE sip:127.0.0.8:5060;line=sr-9879879879798** SIP/2.0.
>>                 Via: SIP/2.0/UDP
>>                  172.16.200.159:5060;branch=z9hG4bK12B9605ED.
>>                 From: xx <sip:xx at 172.16.213.38
>>                 <mailto:sip%3Axx at 172.16.213.38>>;tag=95E7E4A4-23F2.
>>                 To: xxx <sip:xxx at 172.16.213.38
>>                 <mailto:sip%3Axxx at 172.16.213.38>>;tag=SDmmb7201-as0518eb07.
>>                 Date: Thu, 12 Jan 2017 17:51:05 GMT.
>>                 Call-ID:
>>                 SDmmb7201-f5ded6cf4cd5d84736b088e39277e8db-c540dl1.
>>                 User-Agent: Cisco-SIPGateway/IOS-12.x.
>>                 Max-Forwards: 15.
>>                 Route:
>>                 <sip:172.16.213.38;lr;ftag=SDmmb7201-as0518eb07;did=bf.cab>.
>>                 Timestamp: 1484243470.
>>                 CSeq: 101 BYE.
>>                 Reason: Q.850;cause=16.
>>                 Content-Disposition: signal;handling=optional.
>>                 Content-Type: application/gtd.
>>                 Content-Length: 26.
>>                 .
>>                 .....
>>                 .
>>
>>                 #
>>                 U 2017/01/12 14:51:10.647164 172.16.213.38:5060
>>                 <http://172.16.213.38:5060> -> 172.16.50.41:5060
>>                 <http://172.16.50.41:5060>
>>                 BYE sip:xxx at 172.16.50.41:5060
>>                 <http://sip:xxx@172.16.50.41:5060>;transport=udp SIP/2.0.
>>                 Via: SIP/2.0/UDP
>>                 172.16.213.38;branch=z9hG4bKdcf6.f898feef02d601e36a22d26bf3ae5e4a.0.
>>                 Via: SIP/2.0/UDP 127.0.0.8;branch=z9hG4bKsr-asdfasdfF.
>>                 From: xx <sip:xx at 172.16.213.38
>>                 <mailto:sip%3Axx at 172.16.213.38>>;tag=95E7E4A4-23F2.
>>                 To: xxx <sip:xxx at 172.16.50.41
>>                 <mailto:sip%3Axxx at 172.16.50.41>>;tag=SDmmb7201-as0518eb07.
>>                 Call-ID:
>>                 SDmmb7201-f5ded6cf4cd5d84736b088e39277e8db-c540dl1.
>>                 Max-Forwards: 14.
>>                 CSeq: 101 BYE.
>>                 Content-Type: application/gtd.
>>                 Content-Length: 26.
>>                 *User-Agent: Kamailio.*
>>                 *Supported:.*
>>                 *Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, NOTIFY, INFO.*
>>                 *Accept: application/sdp, application/gtd.*
>>                 .
>>                 ......
>>
>>                 But in ok I can't
>>
>>                 #
>>                 U 2017/01/12 14:51:10.653701 172.16.50.41:5060
>>                 <http://172.16.50.41:5060> -> 172.16.213.38:5060
>>                 <http://172.16.213.38:5060>
>>                 SIP/2.0 200 OK.
>>                 Via: SIP/2.0/UDP
>>                 172.16.213.38;branch=z9hG4bKdcf6.f898feef02d601e36a22d26bf3ae5e4a.0.
>>                 Via: SIP/2.0/UDP 127.0.0.8;branch=z9hG4bKsr-sadfasdf.
>>                 From: xx <sip:xx at 172.16.213.38
>>                 <mailto:sip%3Axx at 172.16.213.38>>;tag=95E7E4A4-23F2.
>>                 To: xxx <sip:xxx at 172.16.50.41
>>                 <mailto:sip%3Axxx at 172.16.50.41>>;tag=SDmmb7201-as0518eb07.
>>                 Call-ID:
>>                 SDmmb7201-f5ded6cf4cd5d84736b088e39277e8db-c540dl1.
>>                 CSeq: 101 BYE.
>>                 Server: Asterisk PBX 11.17.0.
>>                 Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER,
>>                 SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE.
>>                 Supported: replaces, timer.
>>                 Content-Length: 0.
>>                 .
>>                 FY, INFO.
>>                 Accept
>>                 #
>>                 U 2017/01/12 14:51:10.669460 172.16.213.38:5060
>>                 <http://172.16.213.38:5060> -> 172.16.200.159:5060
>>                 <http://172.16.200.159:5060>
>>                 SIP/2.0 200 OK.
>>                 Via: SIP/2.0/UDP
>>                  172.16.200.159:5060;branch=z9hG4bK12B9605ED.
>>                 From: xx <sip:xx at 172.16.213.38
>>                 <mailto:sip%3Axx at 172.16.213.38>>;tag=95E7E4A4-23F2.
>>                 To: xxx <sip:xxx at 172.16.213.38
>>                 <mailto:sip%3Axxx at 172.16.213.38>>;tag=SDmmb7201-as0518eb07.
>>                 Call-ID:
>>                 SDmmb7201-f5ded6cf4cd5d84736b088e39277e8db-c540dl1.
>>                 CSeq: 101 BYE.
>>                 *Server: Asterisk PBX 11.17.0.*
>>                 *Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER,
>>                 SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE.*
>>                 *Supported: replaces, timer.*
>>                 Content-Length: 0.
>>                 .
>>
>>
>>
>>                 2017-01-12 13:23 GMT-03:00 Daniel-Constantin Mierla
>>                 <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>
>>                     Hello,
>>
>>                     if you are looking to remove the server header
>>                     (server signature), that can be controlled via
>>                     global parameters:
>>
>>                       -
>>                     https://www.kamailio.org/wiki/cookbooks/4.4.x/core#server_header
>>                     <https://www.kamailio.org/wiki/cookbooks/4.4.x/core#server_header>
>>
>>                     Note that there is another header, User-Agent,
>>                     that may be added by Kamailio in local generate
>>                     request. There is a global parameter to control
>>                     it as well.
>>
>>                     If you want more than that, can you add a bit
>>                     more details, because CANCEL and BYE are
>>                     processed differently. With which one you get issues?
>>
>>                     Cheers,
>>                     Daniel
>>
>>
>>                     On 12/01/2017 17:00, Diego Nadares wrote:
>>>                     Hi List,
>>>
>>>                     I'm trying to add and remove some headers in 200
>>>                     canceling and 200 ok to BYEs with no success.
>>>
>>>                     I don't know in which route to add my remove_hf
>>>                     and append_hf. It seems that I can't catch it on
>>>                     reply either on request route.
>>>
>>>                     I tried adding it in 
>>>
>>>                     event_route[tm:local-response] {
>>>                             xlog("L_ERR", "TM LOCAL REPONSE!");
>>>                             route(MANAGE_HEADERS);
>>>                     }
>>>
>>>                     This is my route to manage hdrs:
>>>
>>>                     route[MANAGE_HEADERS]{
>>>
>>>                             xlog("L_ERR", "MANAGE HDRS !");
>>>
>>>                             keep_hf("TH"); # for topoh
>>>
>>>                             append("AHDR1:asdf\r\n");
>>>
>>>                             return;
>>>                     }
>>>
>>>                     I suppose SERVER HDR should be removed but:
>>>
>>>                     U 2017/01/12 12:45:41.566733 172.16.213.38:5060
>>>                     <http://172.16.213.38:5060> -> 172.16.50.41:5060
>>>                     <http://172.16.50.41:5060>
>>>                     SIP/2.0 200 canceling.
>>>                     Via: SIP/2.0/UDP
>>>                     172.16.50.41:5060;branch=z9hG4bKgg8ekd3080braugkm700.1.
>>>                     CSeq: 102 CANCEL.
>>>                     From: <sip:xx at 172.16.50.41
>>>                     <mailto:sip%3Axx at 172.16.50.41>>;tag=SD7b10b01-as5ba5e269.
>>>                     To: <sip:xxx at 172.16.213.38
>>>                     <mailto:sip%3Axxx at 172.16.213.38>>;tag=4a86e96addfb27a943bc86e1872032b6-0a8b.
>>>                     Call-ID:
>>>                     SD7b10b01-6a7d1089793bda79481f25cf88c023ed-c540dl1.
>>>                     Server: kamailio (4.4.4 (x86_64/linux)).
>>>                     Content-Length: 0.
>>>
>>>
>>>                     Any help will be very appreciated.
>>>
>>>                     Thanks in advance!
>>>
>>>                     Diego
>>>
>>>
>>>                     _______________________________________________
>>>                     SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>                     sr-users at lists.sip-router.org
>>>                     <mailto:sr-users at lists.sip-router.org>
>>>                     http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>                     <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
>>
>>                     -- 
>>                     Daniel-Constantin Mierla
>>                     www.twitter.com/miconda
>>                     <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda
>>                     <http://www.linkedin.com/in/miconda>
>>                     Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com <http://www.kamailioworld.com>
>>
>>                     _______________________________________________
>>                     SIP Express Router (SER) and Kamailio (OpenSER) -
>>                     sr-users mailing list
>>                     sr-users at lists.sip-router.org
>>                     <mailto:sr-users at lists.sip-router.org>
>>                     http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>                     <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
>>
>>
>>             _______________________________________________ SIP
>>             Express Router (SER) and Kamailio (OpenSER) - sr-users
>>             mailing list sr-users at lists.sip-router.org
>>             <mailto:sr-users at lists.sip-router.org>
>>             http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>             <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
>>
>>
>>         _______________________________________________ SIP Express
>>         Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>         sr-users at lists.sip-router.org
>>         <mailto:sr-users at lists.sip-router.org>
>>         http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>         <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> 
>>
>>     _______________________________________________
>>     SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>     sr-users at lists.sip-router.org <mailto:sr-users at lists.sip-router.org>
>>     http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>     <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users>
>     -- 
>     Daniel-Constantin Mierla
>     www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>     Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com <http://www.kamailioworld.com>
>
>     _______________________________________________ SIP Express Router
>     (SER) and Kamailio (OpenSER) - sr-users mailing list
>     sr-users at lists.sip-router.org
>     <mailto:sr-users at lists.sip-router.org>
>     http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>     <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> 
>
-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
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