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<p>Hi David</p>
<p>thanks a lot for your feedback.</p>
<p><br>
</p>
<p>I have investigated more in depth and I found out that the
problem was caused by the format of the agent.pem certificate
generated by opensips.</p>
<p>I followed the following short tutorial to create the agent.pem
certificate</p>
<p><br>
</p>
<p>
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<p class="western" lang="en-US"><font style="font-size: 10pt"
size="+1"><a
href="https://freeswitch.org/stash/projects/FS/repos/freeswitch/browse/docs/how_to_make_your_own_ca_correctly.txt">htps://freeswitch.org/stash/projects/FS/repos/freeswitch/browse/docs/how_to_make_your_own_ca_correctly.txt</a><a
href="https://freeswitch.org/stash/projects/FS/repos/freeswitch/browse/docs/how_to_make_your_own_ca_correctly.txt">t</a></font></p>
<br>
and now I can manage also the inbound calls.<br>
I'm waiting for the customer's official certificates. Anyway at the
moment everything is working fine.<br>
In the meantime I'll move to 1.6.<br>
Thanks<br>
fabio<br>
<br>
<div class="moz-cite-prefix">On 07/06/2018 19:52, David Villasmil
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFGRPVr=X2XOhu8v2wqi4QjHK69sxqLgFAbU7r83QrukYkFmuw@mail.gmail.com">
<p dir="ltr">If the certs are self-signed you're going to have
many many problems. I followed that tutorial with a valid cert
and worked beautifully. Also i did it with 1.6.<br>
</p>
<br>
<div class="gmail_quote">
<div dir="ltr">On Thu, Jun 7, 2018, 18:40 fabio <<a
href="mailto:f.antonini@tiesse.com" moz-do-not-send="true">f.antonini@tiesse.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Hi all</p>
<p><br>
</p>
<p>I'm a Freeswitch newbie and I'm trying to setup SIP over
TLS in my FS version 1.5.15. </p>
<p>As first step I have configured a SIP Gateway that
successfully registers to a dedicated SIP Registrar/Proxy
(opensips) using SIP over UDP. With this configuration I
can successfully place outbound and inbound calls without
any problem. Everything works as a charm.<br>
</p>
<p>Further I have tried to switch to SIP over TLS and I
followed the steps described in <a
class="m_-4730216949600311473moz-txt-link-freetext"
href="https://freeswitch.org/confluence/display/FREESWITCH/SIP+TLS"
target="_blank" moz-do-not-send="true">https://freeswitch.org/confluence/display/FREESWITCH/SIP+TLS</a>.</p>
<p>I have installed the agent.pem and cafile.pem generated
by opensips (my SIP Registrar) and I configured FS to use
them. After restart the sofia gateway profile can
successfully register to the SIP Registrar by SIP over
TLS.</p>
<p>Further I can successfully place outbound call (from
internal channel through the SIP gateway). It sounds
great!<br>
</p>
<p>Unfortunately FS fails to handle inbound calls (SIP
INVITE from an external SIP UA registered to the same SIP
Registrar to the SIP UA extension of the FS SIP gateway).</p>
<p>I have tried to trace all the logs I can. Here below some
traces from the FS console when an inbound INVITE is
received:</p>
<p><br>
</p>
<p><tt>tport.c:2749 tport_wakeup_pri()
tport_wakeup_pri(0xb7f28): events IN</tt><tt><br>
</tt><tt>tport.c:862 tport_alloc_secondary()
tport_alloc_secondary(0xb7f28): new secondary tport
0x1398c0</tt><tt><br>
</tt><tt>tport_type_tcp.c:203 tport_tcp_init_secondary()
tport_tcp_init_secondary(0x1398c0): Setting TCP_KEEPIDLE
to 30</tt><tt><br>
</tt><tt>tport_type_tcp.c:209 tport_tcp_init_secondary()
tport_tcp_init_secondary(0x1398c0): Setting
TCP_KEEPINTVL to 30</tt><tt><br>
</tt><tt>tport_type_tls.c:610 tport_tls_accept()
tport_tls_accept(0x1398c0): new connection from tls/<a
href="http://10.3.10.110:38632/sips" target="_blank"
moz-do-not-send="true">10.3.10.110:38632/sips</a></tt><tt><br>
</tt><tt>tport_tls.c:919 tls_connect()
tls_connect(0x1398c0): events NEGOTIATING</tt><tt><br>
</tt><tt>tport_tls.c:1008 tls_connect()
tls_connect(0x1398c0): TLS setup failed
(error:00000001:lib(0):func(0):reason(1))</tt><tt><br>
</tt><tt>tport.c:2090 tport_close() tport_close(0x1398c0):
tls/<a href="http://10.3.10.110:38632/sips"
target="_blank" moz-do-not-send="true">10.3.10.110:38632/sips</a></tt><tt><br>
</tt><tt>tport.c:2263 tport_set_secondary_timer()
tport(0x1398c0): set timer at 0 ms because zap</tt></p>
<p><tt><br>
</tt></p>
<p>In order to simplify the test I have also tried to
connect to the 5061 TLS port by a simple openssl command
from a linux shell of the SIP Registrar box:</p>
<p><br>
</p>
<p><font face="Courier New, Courier, monospace">openssl
s_client -connect <a href="http://10.11.4.103:5061"
target="_blank" moz-do-not-send="true">10.11.4.103:5061</a>
-tls1_2 <br>
CONNECTED(00000003)<br>
3074304200:error:14094410:SSL
routines:SSL3_READ_BYTES:sslv3 alert handshake
failure:s3_pkt.c:1256:SSL alert number 40<br>
3074304200:error:1409E0E5:SSL
routines:SSL3_WRITE_BYTES:ssl handshake
failure:s3_pkt.c:596:<br>
---<br>
no peer certificate available<br>
---<br>
No client certificate CA names sent<br>
---<br>
SSL handshake has read 7 bytes and written 0 bytes<br>
---<br>
New, (NONE), Cipher is (NONE)<br>
Secure Renegotiation IS NOT supported<br>
Compression: NONE<br>
Expansion: NONE<br>
SSL-Session:<br>
Protocol : TLSv1.2<br>
Cipher : 0000<br>
Session-ID: <br>
Session-ID-ctx: <br>
Master-Key: <br>
Key-Arg : None<br>
PSK identity: None<br>
PSK identity hint: None<br>
SRP username: None<br>
Start Time: 1528361426<br>
Timeout : 7200 (sec)<br>
Verify return code: 0 (ok)<br>
---<br>
</font><br>
</p>
<p>In the FS console I read the same traces received in the
previous test with the inbound call.</p>
<p><br>
</p>
<p><tt>tport.c:2749 tport_wakeup_pri()
tport_wakeup_pri(0xb7f28): events IN</tt><tt><br>
</tt><tt>tport.c:862 tport_alloc_secondary()
tport_alloc_secondary(0xb7f28): new secondary tport
0x248210</tt><tt><br>
</tt><tt>tport_type_tcp.c:203 tport_tcp_init_secondary()
tport_tcp_init_secondary(0x248210): Setting TCP_KEEPIDLE
to 30</tt><tt><br>
</tt><tt>tport_type_tcp.c:209 tport_tcp_init_secondary()
tport_tcp_init_secondary(0x248210): Setting
TCP_KEEPINTVL to 30</tt><tt><br>
</tt><tt>tport_type_tls.c:610 tport_tls_accept()
tport_tls_accept(0x248210): new connection from tls/<a
href="http://10.11.4.103:33168/sips" target="_blank"
moz-do-not-send="true">10.11.4.103:33168/sips</a></tt><tt><br>
</tt><tt>tport_tls.c:919 tls_connect()
tls_connect(0x248210): events NEGOTIATING</tt><tt><br>
</tt><tt>tport_tls.c:1008 tls_connect()
tls_connect(0x248210): TLS setup failed
(error:00000001:lib(0):func(0):reason(1))</tt><tt><br>
</tt><tt>tport.c:2090 tport_close() tport_close(0x248210):
tls/<a href="http://10.11.4.103:33168/sips"
target="_blank" moz-do-not-send="true">10.11.4.103:33168/sips</a></tt><tt><br>
</tt><tt>tport.c:2263 tport_set_secondary_timer()
tport(0x248210): set timer at 0 ms because zap</tt><tt><br>
</tt><br>
</p>
<p>I have attached also a wireshark capture of the inbound
call. In this capture the SIP Registrar has IP
10.3.10.110. The FS device is 10.11.4.103. The Client
Hello is sent by the SIP Registrar, but the FS device
replies with an "Alert: Level: fatal, Description:
handshake failure (40).</p>
<p>I guess that there is some misconfiguration related to
the TLS version or proposed ciphers or any certifcates
but I cannot understand what.</p>
<p><br>
</p>
<p>For comparison I have tried to run the same openssl
command from FS to the external SIP Registrar (outbound).</p>
<p><br>
</p>
<p><font face="Courier New, Courier, monospace">openssl
s_client -connect <a href="http://10.3.10.110:5061"
target="_blank" moz-do-not-send="true">10.3.10.110:5061</a>
-tls1_2 <br>
CONNECTED(00000003)<br>
depth=1 CN = Your_NAME, ST = Your_STATE, C = CO,
emailAddress = YOUR_EMAIL, O = YOUR_ORG_NAME<br>
verify error:num=19:self signed certificate in
certificate chain<br>
verify return:0<br>
---<br>
Certificate chain<br>
0 s:/C=XY/ST=Some State/O=My Large Organization
Name/OU=My Subunit of Large
<a
class="m_-4730216949600311473moz-txt-link-abbreviated"
href="mailto:Organization/CN=somename.somewhere.com/emailAddress=root@somename.somewhere.com"
target="_blank" moz-do-not-send="true">Organization/CN=somename.somewhere.com/emailAddress=root@somename.somewhere.com</a><br>
i:/CN=Your_NAME/ST=Your_STATE/C=CO/emailAddress=YOUR_EMAIL/O=YOUR_ORG_NAME<br>
1
s:/CN=Your_NAME/ST=Your_STATE/C=CO/emailAddress=YOUR_EMAIL/O=YOUR_ORG_NAME<br>
i:/CN=Your_NAME/ST=Your_STATE/C=CO/emailAddress=YOUR_EMAIL/O=YOUR_ORG_NAME<br>
---<br>
Server certificate<br>
-----BEGIN CERTIFICATE-----<br>
MIIC6TCCAdGgAwIBAgIBATANBgkqhkiG9w0BAQUFADBpMRIwEAYDVQQDFAlZb3Vy<br>
X05BTUUxEzARBgNVBAgUCllvdXJfU1RBVEUxCzAJBgNVBAYTAkNPMRkwFwYJKoZI<br>
hvcNAQkBFgpZT1VSX0VNQUlMMRYwFAYDVQQKFA1ZT1VSX09SR19OQU1FMB4XDTE4<br>
MDUwODEyMzcyM1oXDTE5MDUwODEyMzcyM1owgb8xCzAJBgNVBAYTAlhZMRMwEQYD<br>
VQQIEwpTb21lIFN0YXRlMSMwIQYDVQQKExpNeSBMYXJnZSBPcmdhbml6YXRpb24g<br>
TmFtZTEpMCcGA1UECxMgTXkgU3VidW5pdCBvZiBMYXJnZSBPcmdhbml6YXRpb24x<br>
HzAdBgNVBAMTFnNvbWVuYW1lLnNvbWV3aGVyZS5jb20xKjAoBgkqhkiG9w0BCQEW<br>
G3Jvb3RAc29tZW5hbWUuc29tZXdoZXJlLmNvbTBcMA0GCSqGSIb3DQEBAQUAA0sA<br>
MEgCQQDL7uikSc1kVIvw5rhyQzk2dSJcmJ6EJ1LSmtAoafZH8bqfZ25cDQZQGi05<br>
YcuxGR0vSaW7xPnyhaWCLQlxQFx7AgMBAAGjDTALMAkGA1UdEwQCMAAwDQYJKoZI<br>
hvcNAQEFBQADggEBAHv4WzGdYhoEyHZmBQTVjdEKOVBMnNoOqum79uzWtSzSjG4E<br>
pP/9c331uT7fBZ/Z7XNhIV+PbDZXorLgUhwwT7zxYURNnV52Of2SWRmWtPBrgEX1<br>
+8S0IMtJFfJta8FAfTTaNqLpRDaiTQs3em1Maxls15cTyRQzMIjIJnY4eRrh5CNM<br>
YV/+kg/lpKAe0awiMu96cxpnMdz9h33g7RedBnh9wDi6k7pfYtvlC6o4snZO01AN<br>
8qRiQf54OPvKcVeseJFBPWLhdYns6g+/SXhq1Lek2us93ZpuKgIaBtzkyDm2+SFa<br>
QXF9f0a+UuEdPvrtvMjAijcDwcaXq0r2f2MA++M=<br>
-----END CERTIFICATE-----<br>
subject=/C=XY/ST=Some State/O=My Large Organization
Name/OU=My Subunit of Large
<a
class="m_-4730216949600311473moz-txt-link-abbreviated"
href="mailto:Organization/CN=somename.somewhere.com/emailAddress=root@somename.somewhere.com"
target="_blank" moz-do-not-send="true">Organization/CN=somename.somewhere.com/emailAddress=root@somename.somewhere.com</a><br>
issuer=/CN=Your_NAME/ST=Your_STATE/C=CO/emailAddress=YOUR_EMAIL/O=YOUR_ORG_NAME<br>
---<br>
No client certificate CA names sent<br>
---<br>
SSL handshake has read 1979 bytes and written 337 bytes<br>
---<br>
New, TLSv1/SSLv3, Cipher is AES256-GCM-SHA384<br>
Server public key is 512 bit<br>
Secure Renegotiation IS NOT supported<br>
Compression: NONE<br>
Expansion: NONE<br>
SSL-Session:<br>
Protocol : TLSv1.2<br>
Cipher : AES256-GCM-SHA384<br>
Session-ID:
EA8B17008E58F1D04CD1CEA53103CF477AA9DE0DC80A4FF4F0DD4814031E4C15<br>
Session-ID-ctx: <br>
Master-Key:
D28ED5C21D288944D2277AF86FE82A9BF3BEDABAA14DBCD5AE32B190EF0A0CA6AB99719E751E6DD4FECAA9DD1307A3C0<br>
Key-Arg : None<br>
PSK identity: None<br>
PSK identity hint: None<br>
SRP username: None<br>
TLS session ticket lifetime hint: 300 (seconds)<br>
TLS session ticket:<br>
0000 - 2f c5 82 ea bf 8b 66 49-bc bc ee 48 1a fb 8e
6c /.....fI...H...l<br>
0010 - de 42 d9 e0 6e 36 40 78-06 cc 68 c6 74 6d 6e
aa .B..n6@x..h.tmn.<br>
0020 - b6 53 8a ed b2 8d 5a c4-02 e1 88 8b d2 a9 56
5f .S....Z.......V_<br>
0030 - ee c6 b9 14 55 da 37 df-8f aa af 81 b4 22 4e
be ....U.7......"N.<br>
0040 - 9c c5 87 d6 46 22 47 03-4a 88 dd 1e 9d 05 81
09 ....F"G.J.......<br>
0050 - c3 8b 9f 44 29 90 4d 93-c9 f5 41 e2 4d 72 1b
de ...D).M...A.Mr..<br>
0060 - 8d c2 15 ab 49 ad da 26-0e 72 a9 01 02 3e 89
33 ....I..&.r...>.3<br>
0070 - 6e 6c 2f 20 1c 15 06 7a-8d c5 a6 6e ee 46 d2
76 nl/ ...z...n.F.v<br>
0080 - 63 c1 89 1e 9b 3c a1 10-d0 78 31 9e e6 8e 86
ab c....<...x1.....<br>
0090 - ff bc 3a 4c ab 3d 33 8f-e9 56 c5 f1 45 46 73
41 ..:L.=3..V..EFsA<br>
<br>
Start Time: 1528361487<br>
Timeout : 7200 (sec)<br>
Verify return code: 19 (self signed certificate in
certificate chain)<br>
---<br>
closed</font></p>
<p><br>
</p>
<p>In this case the command seems to have been successfully
executed. I remark that the outbound TLS transactions
seems to be working fine also from FS (SIP Registrar, SIP
INVITE in outbound don't have any problem).</p>
<p>If required I can provide also the FS configuration files
(vars.xml, sofia.conf.xml, etc etc).<br>
</p>
<p>Any help will be greatly appreciated.</p>
<p>Thanks in advance<br>
</p>
<p>Best regards</p>
<p><br>
</p>
<p>fabio<br>
</p>
<div class="m_-4730216949600311473moz-signature"> </div>
</div>
_________________________________________________________________________<br>
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<pre wrap="">_________________________________________________________________________
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<p class="nome">Fabio Antonini</p>
<p class="contact">
<i>Software Engineer (Ph.D)</i><br>
<a href="mailto:f.antonini@tiesse.com"
title="Clicca per inviarmi una e-mail">f.antonini@tiesse.com</a><br>
<b>Tel</b> +39.0863.455830<br>
<b>Mob</b> +39.393.9261941<br>
<b>Fax</b> +39.0863.455830<br>
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Via Asti 4, 10015 Ivrea (TO)<br>
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href="https://linkedin.com/company/tiesse-spa"
title="Visita la pagina di Tiesse su Linkedin"
style="margin-left:5px;"><img
style="border:none;width:18px;height:18px;"
src="http://www.tiesse.com/LinkedinTiesse.jpg" alt="Pagina Tiesse su
Linkedin, clicca e visitaci" height="18"
vspace="2" align="left" width="18"></a></p>
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<td colspan="2" class="disclaimer"> <b>Disclaimer:</b>
il contenuto di questa email è riservato e non
vincolante per Tiesse S.p.A.. Se lo avesse
ricevuto per errore, la preghiamo di segnalarlo
immediatamente al mittente, di non utilizzare e
divulgare il contenuto e di distruggere ogni copia
in suo possesso. Tiesse S.p.A. declina ogni
responsabilità da qualsiasi conseguenza derivante
da utilizzi non autorizzati, contraffazioni o
manomissioni di email recanti riferimenti
all'azienda. <br>
<b style="color:#336600">Rispetta l'ambiente. Non
stampare questa mail se non è necessario.</b>
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