Hi,

I have successfully configured Kamailio for WSS support using the below instructions. Everything works perfectly except, when call is hanged up from the receiving end, Kamailio sends BYE and the browser disconnects websocket connection right after getting response from Kamailio with the following error message:

Firefox: WebSocket connection to 'ws://localhost:3001/websocket' failed: Invalid frame header
Chrome: The connection to ws://localhost:3001/websocket was interrupted while the page was loading.

Everything works perfectly over plain websocket(WS). Kamailio is sending something with the websocket that the browsers do not like. But im not sure what it is. If somebody faced same issue before or can give any clue that would be really helpful.

Thanks in advanced!

Date: Fri, 17 Oct 2014 18:33:17 -0700
From: gascagonzalo@gmail.com
To: sr-users@lists.sip-router.org
CC: ben@langfeld.me
Subject: Re: [SR-Users] Configuring TLS and WSS with Kamailio

Hi Ben,

In regards your certificates, please double check the following:
a) CN field:
In your webrtc client check the URL used for wss. and verify it matches the CN field of the certificate installed in kamailio:
Example:
In my sipml5 client I configured wss://ramenlabs.io:5063 and my certificate in fact contains in the cn field ramenlabs.io
Subject: OU=Domain Control Validated, OU=PositiveSSL, CN=ramenlabs.io
openssl x509 -in /etc/certs/sip.192.168.146.133/cert.pem -noout -text

b) 
I have successfully configured Kamailio 4.1 with TLS and WSS using TLS port 5063
Topology:
1) sipml5 --wss--> ngnix -wss-> kamailio (sip registrar)
2) sipml5 --wss---> kamailio

Relevant configurations:
kamailio.cfg
tls.cfg
certificates

Kamailio:
loading modules under /usr/lib/x86_64-linux-gnu/kamailio/modules/

Listening on 
             udp: 172.31.27.85:5060
             tcp: 172.31.27.85:5060
             tcp: 172.31.27.85:5062
             tls: 172.31.27.85:5061
             tls: 172.31.27.85:5063
Aliases: 
             tls: ip-172-31-27-85.us-west-2.compute.internal:5063
             tls: ip-172-31-27-85.us-west-2.compute.internal:5061
             tcp: ip-172-31-27-85.us-west-2.compute.internal:5062
             tcp: ip-172-31-27-85.us-west-2.compute.internal:5060
             udp: ip-172-31-27-85.us-west-2.compute.internal:5060
             *: ramenlabs.io:*
             *: 172.31.27.85:*


kamailio.cfg
tls.cfg



openssl s_client -connect 172.31.27.85:5063 where this i my internal IP address I get presented the certificates.
HTH

-G

On Fri, Oct 17, 2014 at 5:10 PM, Kamrul Khan <dodul@live.com> wrote:
ok. I have made some changes. rather than getting the TLS configaration from a file I added this lines: 

#!ifdef WITH_TLS
# ----- tls params -----

modparam("tls", "private_key", "/etc/certs/sip.192.168.146.133/key.pem")
modparam("tls", "certificate", "/etc/certs/sip.192.168.146.133/cert.pem")
modparam("tls", "ca_list", "/etc/certs/demoCA/cert.pem")

now, Im getting different logs which looks good.  Getting positive results from openssl test,

openssl s_client -connect 192.168.146.133:5061 -tls1
CONNECTED(00000003)
^C

But when I try to connect using my webRTC client or even from web-browsers im getting timed out. I think im  close .. please help me fixing this issue.

Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:275]: fill_missing(): TLSs<default>: tls_method=9
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:287]: fill_missing(): TLSs<default>: certificate='/etc/certs/sip.192.168.146.133/cert.pem'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:294]: fill_missing(): TLSs<default>: ca_list='/etc/certs/demoCA/cert.pem'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:301]: fill_missing(): TLSs<default>: crl='(null)'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:305]: fill_missing(): TLSs<default>: require_certificate=0
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:312]: fill_missing(): TLSs<default>: cipher_list='(null)'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:319]: fill_missing(): TLSs<default>: private_key='/etc/certs/sip.192.168.146.133/key.pem'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:323]: fill_missing(): TLSs<default>: verify_certificate=0
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:326]: fill_missing(): TLSs<default>: verify_depth=9
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:670]: set_verification(): TLSs<default>: No client certificate required and no checks performed
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:275]: fill_missing(): TLSc<default>: tls_method=9
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:287]: fill_missing(): TLSc<default>: certificate='/etc/certs/sip.192.168.146.133/cert.pem'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:294]: fill_missing(): TLSc<default>: ca_list='/etc/certs/demoCA/cert.pem'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:301]: fill_missing(): TLSc<default>: crl='(null)'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:305]: fill_missing(): TLSc<default>: require_certificate=0
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:312]: fill_missing(): TLSc<default>: cipher_list='(null)'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:319]: fill_missing(): TLSc<default>: private_key='/etc/certs/sip.192.168.146.133/key.pem'
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:323]: fill_missing(): TLSc<default>: verify_certificate=0
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:326]: fill_missing(): TLSc<default>: verify_depth=9
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12123]: INFO: tls [tls_domain.c:673]: set_verification(): TLSc<default>: Server MAY present invalid certificate
Oct 17 16:35:38 ubuntu /usr/local/kamailio-devel//sbin/kamailio[12136]: INFO: ctl [io_listener.c:225]: io_listen_loop(): io_listen_loop:  using epoll_lt io watch method (config)