[SR-Users] Integration with multiple MS Teams instances
Володимир Іванець
volodyaivanets at gmail.com
Thu Jul 29 18:48:12 CEST 2021
Hello Rob!
Yes, I'm using Letsencrypt while I'm testing. But I would like to be able
to use different certificates with different sockets.
I found this discussion https://github.com/kamailio/kamailio/issues/2413.
Looks like I need to use "tls_set_connect_server_id()" instead of setting
$xavp(tls=>server_name)" and "$xavp(tls[0]=>server_id)". Unfortunately I'm
currently using Kamailio v5.4 on my test system and this function is not
available. I will update Kamailio and give it another try. Then I will
update everyone in the hope it will be useful for someone :)
Thank you!
Regards, Volodymyr Ivanets
чт, 29 лип. 2021 о 19:07 Rob van den Bulk <rob.van.den.bulk at gmail.com> пише:
> Hello, are u using letsencrypt?
>
> U can use a multi domain.
>
> Muti domain names in one certificate
>
> Outlook voor Android <https://aka.ms/AAb9ysg> downloaden
> ------------------------------
> *From:* sr-users <sr-users-bounces at lists.kamailio.org> on behalf of
> Володимир Іванець <volodyaivanets at gmail.com>
> *Sent:* Thursday, July 29, 2021 4:44:16 PM
> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
> *Subject:* [SR-Users] Integration with multiple MS Teams instances
>
> Hello all!
>
> I was able to connect Kamailio with MS Teams and now trying to add one
> more Teams instance. It looks like I have some misconfiguration or there is
> a bug.
>
> My test server has 2 domain records pointing at it (kamailio.domain1.com
> and kamailio.domain2.com). My tls.cfg configuration file looks like this.
> As you can see the Default section is configured with a
> kamailio.domain1.com sertificate:
>
> *[server:default]*
> *method = TLSv1.0+*
> *require_certificate = no*
> *verify_certificate = no*
> *private_key =
> /var/kamailio/certificates/kamailio.domain1.com/server/key.pem
> <http://kamailio.domain1.com/server/key.pem>*
> *certificate =
> /var/kamailio/certificates/kamailio.domain1.com/server/cert.pem
> <http://kamailio.domain1.com/server/cert.pem>*
> *ca_list = /var/kamailio/certificates/kamailio.domain1.com/CA/cert.pem
> <http://kamailio.domain1.com/CA/cert.pem>*
>
>
> *[client:default]*
> *method = TLSv1.0+*
> *require_certificate = no*
> *verify_certificate = no*
> *private_key =
> /var/kamailio/certificates/kamailio.domain1.com/server/key.pem
> <http://kamailio.domain1.com/server/key.pem>*
> *certificate =
> /var/kamailio/certificates/kamailio.domain1.com/server/cert.pem
> <http://kamailio.domain1.com/server/cert.pem>*
> *ca_list = /var/kamailio/certificates/kamailio.domain1.com/CA/cert.pem
> <http://kamailio.domain1.com/CA/cert.pem>*
>
>
>
> *[server:172.16.30.206:5062 <http://172.16.30.206:5062>]*
> *method = TLSv1.0+*
> *require_certificate = no*
> *verify_certificate = no*
> *private_key =
> /var/kamailio/certificates/kamailio.domain1.com/server/key.pem
> <http://kamailio.domain1.com/server/key.pem>*
> *certificate =
> /var/kamailio/certificates/kamailio.domain1.com/server/cert.pem
> <http://kamailio.domain1.com/server/cert.pem>*
> *ca_list = /var/kamailio/certificates/kamailio.domain1.com/CA/cert.pem
> <http://kamailio.domain1.com/CA/cert.pem>*
> *server_name = "kamailio.domain1.com <http://kamailio.domain1.com>"*
> *server_id = "**"kamailio.domain1.com <http://kamailio.domain1.com>"*
>
>
> *[client:172.16.30.206:5062 <http://172.16.30.206:5062>]*
> *method = TLSv1.0+*
> *require_certificate = no*
> *verify_certificate = no*
> *private_key =
> /var/kamailio/certificates/kamailio.domain1.com/server/key.pem
> <http://kamailio.domain1.com/server/key.pem>*
> *certificate =
> /var/kamailio/certificates/kamailio.domain1.com/server/cert.pem
> <http://kamailio.domain1.com/server/cert.pem>*
> *ca_list = /var/kamailio/certificates/kamailio.domain1.com/CA/cert.pem
> <http://kamailio.domain1.com/CA/cert.pem>*
>
>
>
> *[server:172.16.30.206:5063 <http://172.16.30.206:5063>]*
> *method = TLSv1.0+*
> *require_certificate = no*
> *verify_certificate = no*
> *private_key =
> /var/kamailio/certificates/kamailio.domain2.com/server/key.pem
> <http://kamailio.domain2.com/server/key.pem>*
> *certificate =
> /var/kamailio/certificates/kamailio.domain2.com/server/cert.pem
> <http://kamailio.domain2.com/server/cert.pem>*
> *ca_list = /var/kamailio/certificates/kamailio.domain2.com/CA/cert.pem
> <http://kamailio.domain2.com/CA/cert.pem>*
> *server_name = "kamailio.domain2.com <http://kamailio.domain2.com>"*
>
> *server_id = "**"kamailio.domain2.com <http://kamailio.domain2.com>"*
>
>
> *[client:172.16.30.206:5063 <http://172.16.30.206:5063>]*
> *method = TLSv1.0+*
> *require_certificate = no*
> *verify_certificate = no*
> *private_key =
> /var/kamailio/certificates/kamailio.domain2.com/server/key.pem
> <http://kamailio.domain2.com/server/key.pem>*
> *certificate =
> /var/kamailio/certificates/kamailio.domain2.com/server/cert.pem
> <http://kamailio.domain2.com/server/cert.pem>*
> *ca_list = /var/kamailio/certificates/kamailio.domain2.com/CA/cert.pem
> <http://kamailio.domain2.com/CA/cert.pem>*
>
>
> The dispatcher configuration table looks like this:
>
>
> +----+-------+----------------------------------------------+-------+----------+--------------------------------------------------------------------+-------------+
> | id | setid | destination | flags |
> priority | attrs
> | description |
>
> +----+-------+----------------------------------------------+-------+----------+--------------------------------------------------------------------+-------------+
> | 1 | 1 | sip:sip.pstnhub.microsoft.com;transport=tls | 0 |
> 3 | socket=tls:172.16.30.206:5062;ping_from=sip:kamailio.domain1.com |
> MS Teams 1 |
> | 2 | 2 | sip:sip.pstnhub.microsoft.com;transport=tls | 0 |
> 3 | socket=tls:172.16.30.206:5063;ping_from=sip:kamailio.domain2.com |
> MS Teams 2 |
>
> +----+-------+----------------------------------------------+-------+----------+--------------------------------------------------------------------+-------------+
>
>
>
> When Kamailio is started only connection with the first trunk is
> established:
>
> *# kamcmd tls.list*
> *{*
> * id: 1*
> * timeout: 0*
> * src_ip: 52.114.75.24*
> * src_port: 5061*
> * dst_ip: 172.16.30.206*
> * dst_port: 0*
> * cipher: ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=RSA
> Enc=AESGCM(256) Mac=AEAD*
> * ct_wq_size: 0*
> * enc_rd_buf: 0*
> * flags: 2*
> * state: established*
> *}*
> *{*
> * id: 2*
> * timeout: 0*
> * src_ip: 52.114.75.24*
> * src_port: 7810*
> * dst_ip: 172.16.30.206*
> * dst_port: 5062*
> * cipher: AES256-GCM-SHA384 TLSv1.2 Kx=RSA Au=RSA
> Enc=AESGCM(256) Mac=AEAD*
> * ct_wq_size: 0*
> * enc_rd_buf: 0*
> * flags: 2*
> * state: established*
> *}*
> *{*
> * id: 3*
> * timeout: 596*
> * src_ip: 52.114.75.24*
> * src_port: 7811*
> * dst_ip: 172.16.30.206*
> * dst_port: 5062*
> * cipher: AES256-GCM-SHA384 TLSv1.2 Kx=RSA Au=RSA
> Enc=AESGCM(256) Mac=AEAD*
> * ct_wq_size: 0*
> * enc_rd_buf: 0*
> * flags: 2*
> * state: established*
> *}*
>
>
> Here is what I can see in Kamailio log file when it sends an OPTIONS
> request to the second trunk. Kamailio uses Default tls configuration and MS
> Teams don't accept it:
>
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: ALERT: <script>: ==
> TRACE. tm:local-request. fs is tls:172.16.30.206:5063
> <http://172.16.30.206:5063>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tm
> [uac.c:352]: t_run_local_req(): apply new updates without Via to sip msg*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/msg_translator.c:1796]: check_boundaries(): no multi-part body*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:610]: parse_msg(): SIP Request:*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:612]: parse_msg(): method: <OPTIONS>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:614]: parse_msg(): uri:
> <sip:sip.pstnhub.microsoft.com
> <http://sip.pstnhub.microsoft.com>;transport=tls>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:616]: parse_msg(): version: <SIP/2.0>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/parse_via.c:1303]: parse_via_param(): Found param type 232,
> <branch> = <z9hG4bK169b.6411b4c3000000000000000000000000.0>; state=16*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/parse_via.c:2639]: parse_via(): end of header reached, state=5*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:498]: parse_headers(): Via found, flags=2*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:500]: parse_headers(): this is the first via*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/parse_addr_spec.c:864]: parse_addr_spec(): end of header
> reached, state=10*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:171]: get_hdr_field(): <To> [47];
> uri=[sip:sip.pstnhub.microsoft.com
> <http://sip.pstnhub.microsoft.com>;transport=tls]*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:174]: get_hdr_field(): to body
> (47)[<sip:sip.pstnhub.microsoft.com
> <http://sip.pstnhub.microsoft.com>;transport=tls>^M*
> *], to tag (0)[]*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:152]: get_hdr_field(): cseq <CSeq>: <10>
> <OPTIONS>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:185]: get_hdr_field(): content_length=0*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:89]: get_hdr_field(): found end of header*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:610]: parse_msg(): SIP Request:*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:612]: parse_msg(): method: <OPTIONS>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:614]: parse_msg(): uri:
> <sip:sip.pstnhub.microsoft.com
> <http://sip.pstnhub.microsoft.com>;transport=tls>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:616]: parse_msg(): version: <SIP/2.0>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/parse_via.c:1303]: parse_via_param(): Found param type 232,
> <branch> = <z9hG4bK169b.6411b4c3000000000000000000000000.0>; state=16*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/parse_via.c:2639]: parse_via(): end of header reached, state=5*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:498]: parse_headers(): Via found, flags=2*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:500]: parse_headers(): this is the first via*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/parse_addr_spec.c:864]: parse_addr_spec(): end of header
> reached, state=10*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:171]: get_hdr_field(): <To> [47];
> uri=[sip:sip.pstnhub.microsoft.com
> <http://sip.pstnhub.microsoft.com>;transport=tls]*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:174]: get_hdr_field(): to body
> (47)[<sip:sip.pstnhub.microsoft.com
> <http://sip.pstnhub.microsoft.com>;transport=tls>^M*
> *], to tag (0)[]*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/parser/msg_parser.c:152]: get_hdr_field(): cseq <CSeq>: <10>
> <OPTIONS>*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tm
> [uac.c:189]: uac_refresh_hdr_shortcuts(): cseq: [CSeq: 10]*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/tcp_main.c:1993]: tcp_send(): no open tcp connection found, opening
> new one*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/ip_addr.c:229]: print_ip(): tcpconn_new: new tcp connection:
> 52.114.75.24*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/tcp_main.c:1175]: tcpconn_new(): on port 5061, type 3, socket -1*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: <core>
> [core/tcp_main.c:1498]: tcpconn_add(): hashes: 2831:67:0, 1*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tls
> [tls_server.c:199]: tls_complete_init(): completing tls connection
> initialization*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tls
> [tls_server.c:162]: tls_get_connect_server_name(): xavp with outbound
> server name not found*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tls
> [tls_server.c:142]: tls_get_connect_server_id(): xavp with outbound server
> id not found*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tls
> [tls_server.c:228]: tls_complete_init(): Using initial TLS domain
> TLSc<default> (dom 0x7f35509da688 ctx 0x7f3550b7a568 sn [])*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tls
> [tls_domain.c:1177]: tls_lookup_private_key(): Private key lookup for
> SSL_CTX-0x7f3550b7a568: (nil)*
> *Jul 29 16:46:14 kamailio /usr/sbin/kamailio[11809]: DEBUG: tls
> [tls_domain.c:747]: sr_ssl_ctx_info_callback(): SSL handshake started*
> *...*
>
>
> If I change the Default configuration to use kamailio.domain2.com
> certificate, the second trunk will connect but the first one will fail.
> I tried to set "$xavp(tls=>server_name)" and "$xavp(tls[0]=>server_id)"
> variables to the event_route[tm:local-request] section but log still stated
> that server Name and ID were not found.
>
> Can someone please point me in the right direction, how can I make
> Kamailio use the correct certificates when establishing multiple TLS
> connections?
>
> Thanks a lot!
>
> Regards, Volodymyr Ivanets
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