Re: [SR-Users] Retrieving cert details from tls peer

On 3 Jul 2020, at 09:09, Daniel-Constantin Mierla &lt;miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: Hello, the client has to be configured to present a certificate, and it doesn't do it based on kamailio log message: INFO: tls [tls_server.c:445]: tls_accept(): tls_accept: client did not present a certificate Check the phone config to see if you can set such option. Kamailio can just see if a certificate is sent and if not reject the connection, if you have require_certificate = yes in the server profile of tls.cfg You can eventually test with 'openssl s_client ...' to see details of client side certs in kamailio -- iirc, it has the options to specify client side certificate with -cert ... -key ... Cheers, Daniel On 03.07.20 09:52, Mark Boyce wrote: > Hi Daniel > > I’m testing with a Yealink T57W. It comes with a factory install certificate which will probably fail validation as the common name is the MAC. > > I'm not trying validate the client device’s certificate just get it to offer what it has so I can check the details. > > Thanks > Mark > >> On 3 Jul 2020, at 08:38, Daniel-Constantin Mierla &lt;miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: >> >> Hello, >> >> what is the SIP client app you used? Is it configured to use its own tls certificate when connecting to the SIP server? >> >> Cheers, >> Daniel >> >> On 02.07.20 18:51, Mark Boyce wrote: >>> Hi all >>> >>> Been trying to grab the TLS cert details from incoming connections, but failing :-( >>> >>> So with lines just before AUTH is called like this; >>> >>> if (proto == TLS) { >>> xlog("L_INFO", "TLSDUMP $ci peer_subject : $tls_peer_subject\n"); >>> >>> Gets met with a log line line this; >>> >>> INFO: tls [tls_server.c:431]: tls_accept(): tls_accept: new connection from 1.2.3.4:11797 using TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256 >>> INFO: tls [tls_server.c:434]: tls_accept(): tls_accept: local socket: 5.6.7.8:5061 >>> INFO: tls [tls_server.c:445]: tls_accept(): tls_accept: client did not present a certificate >>> ... >>> INFO: tls [tls_select.c:168]: get_cert(): Unable to retrieve peer TLS certificate from SSL structure >>> >>> This is with verify_certificate and require_certificate set to no in tls.cfg >>> >>> If I try and set the following in tls.cfg >>> >>> [server:default] >>> method = TLSv1.2+ >>> verify_certificate = no >>> require_certificate = yes >>> >>> I see in the logs; >>> >>> INFO: tls [tls_domain.c:303]: ksr_tls_fill_missing(): TLSs<default>: tls_method=22 >>> INFO: tls [tls_domain.c:315]: ksr_tls_fill_missing(): TLSs<default>: certificate='/etc/kamailio/tls-certs/cert.pem' >>> INFO: tls [tls_domain.c:322]: ksr_tls_fill_missing(): TLSs<default>: ca_list='(null)' >>> INFO: tls [tls_domain.c:329]: ksr_tls_fill_missing(): TLSs<default>: crl='(null)' >>> INFO: tls [tls_domain.c:333]: ksr_tls_fill_missing(): TLSs<default>: require_certificate=1 >>> INFO: tls [tls_domain.c:340]: ksr_tls_fill_missing(): TLSs<default>: cipher_list='(null)' >>> INFO: tls [tls_domain.c:347]: ksr_tls_fill_missing(): TLSs<default>: private_key='/etc/kamailio/tls-certs/privkey.pem' >>> INFO: tls [tls_domain.c:351]: ksr_tls_fill_missing(): TLSs<default>: verify_certificate=0 >>> INFO: tls [tls_domain.c:354]: ksr_tls_fill_missing(): TLSs<default>: verify_depth=9 >>> NOTICE: tls [tls_domain.c:1095]: ksr_tls_fix_domain(): registered server_name callback handler for socket [:0], server_name='<default>' ... >>> INFO: tls [tls_domain.c:692]: set_verification(): TLSs<default>: Client MUST present valid certificate >>> INFO: tls [tls_domain.c:303]: ksr_tls_fill_missing(): TLSc<default>: tls_method=20 >>> INFO: tls [tls_domain.c:315]: ksr_tls_fill_missing(): TLSc<default>: certificate='(null)' >>> INFO: tls [tls_domain.c:322]: ksr_tls_fill_missing(): TLSc<default>: ca_list='(null)' >>> INFO: tls [tls_domain.c:329]: ksr_tls_fill_missing(): TLSc<default>: crl='(null)' >>> INFO: tls [tls_domain.c:333]: ksr_tls_fill_missing(): TLSc<default>: require_certificate=1 >>> INFO: tls [tls_domain.c:340]: ksr_tls_fill_missing(): TLSc<default>: cipher_list='(null)' >>> INFO: tls [tls_domain.c:347]: ksr_tls_fill_missing(): TLSc<default>: private_key='(null)' >>> INFO: tls [tls_domain.c:351]: ksr_tls_fill_missing(): TLSc<default>: verify_certificate=1 >>> INFO: tls [tls_domain.c:354]: ksr_tls_fill_missing(): TLSc<default>: verify_depth=9 >>> INFO: tls [tls_domain.c:692]: set_verification(): TLSc<default>: Server MUST present valid certificate >>> ... >>> ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS accept:error:1417C086:SSL routines:tls_process_client_certificate:certificate verify failed >>> >>> Which looks like verification is being enabled when I add require? >>> >>> >>> >>> Would someone be kind enough to point out what I am missing please? (Assuming it’s not a bug :-) >>> >>>