[SR-Users] Problems establishing SIP signaling between MsTeams and Kamailio

Sat Jan 9 15:46:40 CET 2021

Hallo, warning from Microsoft is "normal" till the first calls are established.

Sent from mobile, with due apologies for brevity and errors.   Rob van den Bulk

________________________________
From: Carlos Mestanza T. <mestacart at gmail.com>
Sent: Thursday, January 7, 2021 9:41:44 PM
To: rob.van.den.bulk at gmail.com <rob.van.den.bulk at gmail.com>
Cc: miconda at gmail.com <miconda at gmail.com>; Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: Re: [SR-Users] Problems establishing SIP signaling between MsTeams and Kamailio

I am a friend of Willy and we are doing this integration, today I create wildcard certificates in letsencrypt, for this use acme.sh and integrate it with the DNS CLOUDNS provider, the certificates were generated successfully, we replace the old ones, in the LOGs it gives us understanding q accept the certificates.

[image.png]

[image.png]

But he has the same messages.

Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24810]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24810]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24810]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.132.46
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24810]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24810]: ERROR: <core> [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7fdfc14a8cf8 r: 0x7fdfc14a8e20 (-1)
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24811]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24811]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24811]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.7.24
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24811]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66
Jan  7 15:32:57 Kamailio-Server /usr/sbin/kamailio[24811]: ERROR: <core> [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7fdfc1424528 r: 0x7fdfc1424650 (-1)
Jan  7 15:33:06 Kamailio-Server /usr/sbin/kamailio[24804]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error
Jan  7 15:33:06 Kamailio-Server /usr/sbin/kamailio[24804]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Jan  7 15:33:06 Kamailio-Server /usr/sbin/kamailio[24804]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.75.24
Jan  7 15:33:06 Kamailio-Server /usr/sbin/kamailio[24804]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66
Jan  7 15:33:06 Kamailio-Server /usr/sbin/kamailio[24804]: ERROR: <core> [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7fdfc1424528 r: 0x7fdfc1424650 (-1)
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24805]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24805]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24805]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.132.46
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24805]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24805]: ERROR: <core> [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7fdfc1494d20 r: 0x7fdfc1494e48 (-1)
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24806]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24806]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24806]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.14.70
Jan  7 15:33:07 Kamailio-Server /usr/sbin/kamailio[24806]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66

Atentamente

Adalberto Carlos Mestanza T.

El jue, 7 ene 2021 a las 8:08, <rob.van.den.bulk at gmail.com<mailto:rob.van.den.bulk at gmail.com>> escribió:

I Used this tls.cfg

Use bc2025.pem as extra, Microsoft needs this…

And works fine on different Kamailio-msteams sbcs

[server:default]

method = TLSv1.2+

verify_certificate = yes

require_certificate = yes

private_key = /etc/letsencrypt/live/sbc.combivoipdom.nl-0001/privkey.pem

certificate = /etc/letsencrypt/live/sbc.combivoipdom.nl-0001/fullchain.pem

ca_list = /etc/letsencrypt/live/sbc.combivoipdom.nl-0001/bc2025.pem

server_name = sbc.combivoipdom.nl<http://sbc.combivoipdom.nl>

[client:default]

method = TLSv1.2+

verify_certificate = yes

require_certificate = yes

private_key = /etc/letsencrypt/live/sbc.combivoipdom.nl-0001/privkey.pem

certificate = /etc/letsencrypt/live/sbc.combivoipdom.nl-0001/fullchain.pem

ca_list = /etc/letsencrypt/live/sbc.combivoipdom.nl-0001/bc2025.pem

Cheers Rob

Van: sr-users <sr-users-bounces at lists.kamailio.org<mailto:sr-users-bounces at lists.kamailio.org>> Namens Daniel-Constantin Mierla
Verzonden: donderdag 7 januari 2021 08:53
Aan: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>>; Willy Valles Rios <willyvalles17 at gmail.com<mailto:willyvalles17 at gmail.com>>
CC: Carlos Mestanza T. <mestacart at gmail.com<mailto:mestacart at gmail.com>>
Onderwerp: Re: [SR-Users] Problems establishing SIP signaling between MsTeams and Kamailio

Does this happen when Kamailio connects to MS Teams? The logs indicate the received TLS certificate is not trusted:

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed

You can set debug=3 in kamailio.cfg and see if the DEBUG messages provide more hints. For me it worked fine with Letsencrypt certs in Kamailio and accepting what ever MS sent back. I used Debian 10 and libssl 1.1.

Cheers,
Daniel

On 06.01.21 21:47, Willy Valles Rios wrote:

Hello community,

I am having trouble establishing SIP signaling between MsTeams and Kamailio. I currently have this configuration in my tls.cfg file

[server: default]

method = TLSv1.2 +

verify_certificate = yes

require_certificate = yes

private_key = /etc/kamailio/certificates/private-key.pem

certificate = /etc/kamailio/certificates/certificate.pem

[client: default]

method = TLSv1.2 +

verify_certificate = yes

require_certificate = yes

private_key = /etc/kamailio/certificates/private-key.pem

certificate = /etc/kamailio/certificates/certificate.pem

My domain was certified with ssl through an authoritative certifier (GoDaddy), however I see these errors in the / var / log / messages of the Kamailio server.

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_mod.c:389]: mod_init(): With ECDH-Support!

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_mod.c:392]: mod_init(): With Diffie Hellman

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_init.c:722]: tls_h_mod_init_f(): compiled with openssl version "OpenSSL 1.0.2k-fips 26 Jan 2017" (0x100020bf), kerberos support: on, compression: on

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_init.c:730]: tls_h_mod_init_f(): installed openssl library version "OpenSSL 1.0.2k-fips 26 Jan 2017" (0x100020bf), kerberos support: on, zlib compression: on#012 compiler: gcc -I. -I.. -I../include -fPIC -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DKRB5_MIT -m64 -DL_ENDIAN -Wall -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -Wa,--noexecstack -DPURIFY -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DRC4_ASM -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM -DECP_NISTZ256_ASM

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: WARNING: tls [tls_init.c:787]: tls_h_mod_init_f(): openssl bug #1491 (crash/mem leaks on low memory) workaround enabled (on low memory tls operations will fail preemptively) with free memory thresholds 13107200 and 6553600 bytes

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: [core/cfg/cfg_ctx.c:598]: cfg_set_now(): tls.low_mem_threshold1 has been changed to 13107200

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: [core/cfg/cfg_ctx.c:598]: cfg_set_now(): tls.low_mem_threshold2 has been changed to 6553600

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: [main.c:2834]: main(): processes (at least): 25 - shm size: 67108864 - pkg size: 4194304

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: [core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: [core/udp_server.c:206]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:305]: ksr_tls_fill_missing(): TLSs: tls_method=22

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:317]: ksr_tls_fill_missing(): TLSs: certificate='/etc/kamailio/certificados/certificate.pem'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:324]: ksr_tls_fill_missing(): TLSs: ca_list='(null)'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:331]: ksr_tls_fill_missing(): TLSs: crl='(null)'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:335]: ksr_tls_fill_missing(): TLSs: require_certificate=1

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:342]: ksr_tls_fill_missing(): TLSs: cipher_list='(null)'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:349]: ksr_tls_fill_missing(): TLSs: private_key='/etc/kamailio/certificados/private-key.pem'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:353]: ksr_tls_fill_missing(): TLSs: verify_certificate=1

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:356]: ksr_tls_fill_missing(): TLSs: verify_depth=9

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:359]: ksr_tls_fill_missing(): TLSs: verify_client=0

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: NOTICE: tls [tls_domain.c:1107]: ksr_tls_fix_domain(): registered server_name callback handler for socket [:0], server_name='' ...

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:697]: set_verification(): TLSs: Client MUST present valid certificate

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:305]: ksr_tls_fill_missing(): TLSc: tls_method=22

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:317]: ksr_tls_fill_missing(): TLSc: certificate='/etc/kamailio/certificados/certificate.pem'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:324]: ksr_tls_fill_missing(): TLSc: ca_list='(null)'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:331]: ksr_tls_fill_missing(): TLSc: crl='(null)'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:335]: ksr_tls_fill_missing(): TLSc: require_certificate=1

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:342]: ksr_tls_fill_missing(): TLSc: cipher_list='(null)'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:349]: ksr_tls_fill_missing(): TLSc: private_key='/etc/kamailio/certificados/private-key.pem'

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:353]: ksr_tls_fill_missing(): TLSc: verify_certificate=1

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:356]: ksr_tls_fill_missing(): TLSc: verify_depth=9

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:359]: ksr_tls_fill_missing(): TLSc: verify_client=0

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32409]: INFO: tls [tls_domain.c:697]: set_verification(): TLSc: Server MUST present valid certificate

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32422]: INFO: jsonrpcs [jsonrpcs_sock.c:443]: jsonrpc_dgram_process(): a new child 0/32422

Jan 6 15:13:45 Kamailio-Server /usr/sbin/kamailio[32424]: INFO: ctl [io_listener.c:214]: io_listen_loop(): io_listen_loop: using epoll_lt io watch method (config)

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.75.24

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32425]: ERROR: [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f45242be028 r: 0x7f45242be150 (-1)

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.132.46

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32426]: ERROR: [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f45242d9278 r: 0x7f45242d93a0 (-1)

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls [tls_server.c:1283]: tls_h_read_f(): protocol level error

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS write:error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls [tls_server.c:1287]: tls_h_read_f(): source IP: 52.114.14.70

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: tls [tls_server.c:1290]: tls_h_read_f(): destination IP: 161.35.44.66

Jan 6 15:13:55 Kamailio-Server /usr/sbin/kamailio[32427]: ERROR: [core/tcp_read.c:1493]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f45242be028 r: 0x7f45242be150 (-1)

Could you help me identify the problem please.

Cheers

Saludos Cordiales

--

Willy Valles Rios

Unified Communications Specialist

phone: +51955747343

em at il: willyvalles17 at gmail.com<mailto:willyvalles17 at gmail.com>

_______________________________________________

Kamailio (SER) - Users Mailing List

sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>

https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

--

Daniel-Constantin Mierla -- www.asipto.com<http://www.asipto.com>

www.twitter.com/miconda<http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda<http://www.linkedin.com/in/miconda>

Funding: https://www.paypal.me/dcmierla
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