11 Mar
2022
11 Mar
'22
10:55 a.m.
Indeed, the sipdump is not saving everything that comes in or goes out
of kamailio, only the traffic that uses the functions for handling or
sending sip traffic. http is mapped over sip internally, but ws pings
are using directly lower api for tcp send.
Cheers,
Daniel
On 11.03.22 10:34, Igor Olhovskiy wrote:
Xuo,
Can't say for Chrome Web Tools, but they most likely will filter these
packets out as they are not part of "real traffic". I'd suggest you to
do a capture directly on the wire with Wireshark or so.
Same for Kamailio, I also don't expect em to be saved there for the
same reason above.
пт, 11 мар. 2022 г. в 09:29, Xuo Guoto <xuoguoto(a)protonmail.com>om>:
Hi,
Yes, I understand that the SIP OPTIONS and websocket pings are
different.
I check the ping using two methods. One at the client side using
chrome developer tools. At the server side I use sipdump module to
capture all traffic.
modparam("sipdump", "enable", 1)
modparam("sipdump", "folder",
"/var/log/kamailio/sip/")
With this enabled, kamailio dumps all the traffic in a file for
analysis. For example:
tag: rcv
pid: 1553531
process: 16
time: 1646982958.357033
date: Fri Mar 11 12:45:58 2022
proto: tls ipv4
srcip: x9.xx.196.11
srcport: 54640
dstip: 1x8.xx.59.172
dstport: 443
~~~~~~~~~~~~~~~~~~~~
GET /ws HTTP/1.1
Host: myhost-q01.mydomain.net <http://myhost-q01.mydomain.net>
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51
Safari/537.3
6 Edg/99.0.1150.36
Upgrade: websocket
Origin: https://myhost-adm.mydomain.net
Sec-WebSocket-Version: 13
<snip>
I expect the ping websockets to be printed here, but this is not
the only place I am checking for. If pings are being sent, I
should get to see it at chrome websocket also. In my case neither
place shows any trace of websocket pings packets.
X.
Sent with ProtonMail <https://protonmail.com/> secure email.
------- Original Message -------
On Friday, March 11th, 2022 at 2:19 PM, Igor Olhovskiy
<igorolhovskiy(a)gmail.com> wrote:
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - Online
March 28-31, 2022 (Europe Timezone)
* https://www.asipto.com/sw/kamailio-advanced-training-online/
Xuo,
How do you capture this traffic? WebSocket pings is not an
ordinary "SIP-style OPTIONS" pings, It's packets described in
RFC6455 - https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.2
чт, 10 мар. 2022 г. в 16:57, Xuo Guoto <xuoguoto(a)protonmail.com>om>:
Hello list,
I have kamailio 5.5.3 (x86_64/linux) configured as an SBC in
front of asterisk to front end webrtc clients. Browser
clients running JsSIP 3.7.0 connect to kamailio via webrtc
and kamailio sends the traffic back to asterisk using SIP.
rtpengine is configured to relay the RTP packets.
I need to send websocket pings every 10 seconds to the
browser clients.
I have the following config in kamailio:
modparam("websocket", "keepalive_mechanism", 1)
modparam("websocket", "keepalive_timeout", 10)
modparam("websocket", "keepalive_interval", 2)
modparam("websocket", "keepalive_processes", 2)
modparam("websocket", "verbose_list", 1)
If my understanding of the documentation is correct, I do not
need to do any additional configuration.
But looking at the websocket traffic, I do not see any ping
packets in websocket. I am also using sipdump module to
capture all packets sent and received by kamailio and the
ping packets are not visible there either.
What could be wrong here? Do I need to do any additional config?
Thanks for every help!
X.
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