2017-01-13 13:27 GMT-03:00 Sergey Basov <sergey.v.basov@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@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@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 -> 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@172.16.213.38>;tag=95E7E4A4-23F2.
To: xxx <sip:xxx@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 -> 172.16.50.41:5060
BYE 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@172.16.213.38>;tag=95E7E4A4-23F2.
To: xxx <sip:xxx@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 -> 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@172.16.213.38>;tag=95E7E4A4-23F2.
To: xxx <sip:xxx@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 -> 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@172.16.213.38>;tag=95E7E4A4-23F2.
To: xxx <sip:xxx@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@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

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 -> 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@172.16.50.41>;tag=SD7b10b01-as5ba5e269.

To: <sip:xxx@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
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_______________________________________________
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