Re: [OpenSIPS-Users] About obstacles to implement the matched Id in event

Vlad Patrascu Thu, 18 Aug 2022 08:31:17 -0700

Hi Li,

In 2.4 I think the only way is to use the same cachedb_local storage foreverything you need to pass around.


Regards,

--
Vlad Patrascu
OpenSIPS Core Developer
http://www.opensips-solutions.com

On 18.08.2022 16:59, Li Cai wrote:

Hi Vlad,

Thank you very much for the suggestion. Sorry that I didn't mention our 
OpenSIPs version, we're with 2.4 which doesn't provide exported pseudo 
variables. Can I ask if there is similar way to do so in V2.4?


Thanks,
Li

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Today's Topics:

    1. Re: About obstacles to implement the matched Id in event
       header of NOTIFY(REFER) (Vlad Patrascu)
    2. Re: Bug on TLS Management Interface (Bogdan-Andrei Iancu)


----------------------------------------------------------------------

Message: 1
Date: Tue, 16 Aug 2022 22:19:10 +0300
From: Vlad Patrascu <vl...@opensips.org>
To: users@lists.opensips.org
Subject: Re: [OpenSIPS-Users] About obstacles to implement the matched
         Id in event header of NOTIFY(REFER)
Message-ID: <91e7202d-ac0f-9ab3-252e-49640130a...@opensips.org>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Hi Li,

For passing around data between the b2b request route and local_route, in the 
context of an ongoing B2B session, you can use the $b2b_logic.ctx variable[1]. 
That would take care of transferring the Cseq from step 1 to step 2 and the id 
from step 3 to step 4.

As for your cseq map, you can use the cachedb_local module, and maybe the 
$b2b_logic.key variable alongside Cseq2 for building a proper key.

[1] 
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fopensips.org%2Fdocs%2Fmodules%2F3.3.x%2Fb2b_logic.html%23b2b_logic.key&amp;data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=6QxyCjy0NEZoKBkpyy2VYKakriwsEg6xrt%2FSV%2BisERk%3D&amp;reserved=0

Regards,

--
Vlad Patrascu
OpenSIPS Core Developer
https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.opensips-solutions.com%2F&amp;data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=dA%2Fa%2BWYy3xqc9qAGN3koDHWwBn5rWC1gRxG6PM5OebM%3D&amp;reserved=0

On 22.07.2022 23:02, Li Cai wrote:

Hi experts,

I'm working on the implementation for '2.4.6 Multiple REFER Requests
in a Dialog' of RFC3515 in a B2B SIP Proxy. Right now, I got stuck
with two problems in the solution. Please see the paragraph from RFC-

    A REFER creates an implicit subscription sharing the dialog

identifiers in the REFER request.  If more than one REFER is issued

    in the same dialog (a second attempt at transferring a call for

example), the dialog identifiers do not provide enough information to

associate the resulting NOTIFYs with the proper REFER.

    Thus, for the second and subsequent REFER requests a UA receives in
a

    given dialog, it MUST include an id parameter[2] in the Event
header

    field of each NOTIFY containing the sequence number (the number
from

    the CSeq header field value) of the REFER this NOTIFY is associated

    with. This id parameter MAY be included in NOTIFYs to the first

    REFER a UA receives in a given dialog.  A SUBSCRIBE sent to refresh

    or terminate this subscription MUST contain this id parameter.

Different from the definition in RFC, the NOTIFY forwarded by the
proxy contains the same Id in Event header as the other side. Please
see the below chart -

                    B2BProxy

                                            |

                 <- REFER 2 (Cseq=2) |                  <-REFER 1
  (Cseq=1003)

                            . . .                  | . . .

->NOTIFY 1 (event:*id=2*)         |  ->NOTIFY 2 (_event*:id=2*)_

The current problem is, the above NOTIFY on the right side should
_include 'id=1003' instead of 'id=2'_.

The solution I'm trying is as in the following flow -

       1.         get CSeq 1 of REFER 1 in route[b2b_request]{}  ->

       2.         get CSeq 2 of REFER 2 in local_route{},  then save
the pair(key=CSeq2, value=CSeq1) in a map set->

       3.         get Id  from NOTIFY 1 event in route[b2b_request]{}  ->

       4.         use Id  as key then get matched CSeq1 from the map
set, use remove_hf() and append_hf() to modify the event header in
local_route{}

My two questions are:

  1. To transfer Cseq 1 from step1 to step2, I tried a variable in the
     AVP type but it didn't work. The script variable can work but it
     doesn't fit because the processing is based on per request.  Can I
     ask if you have any suggest on how to transfer the value from
     route[b2b_request]{} to local_route{}?
  2. In the step2, I tried to create and operate a JSON map set to save
     the CSeq pairs. But the JSON data didn't work for me.

             My source :

                                     $json(csList) = "";       #
Initialize the data set, not sure if it's correct

$json(csList/"$cs") = "$avp(csNum)";

             The error I got:

ERROR:core:do_assign: setting PV failed

ERROR:core:do_assign: error at
/usr/local//et/opensips/opensips.cfg:531

Thank you very much for the help! Any your suggests are very welcomed.

Thanks,

Li

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------------------------------

Message: 2
Date: Wed, 17 Aug 2022 10:28:49 +0300
From: Bogdan-Andrei Iancu <bog...@opensips.org>
To: Francisco Neto <fn...@sothis.com.br>, "users@lists.opensips.org"
         <users@lists.opensips.org>
Subject: Re: [OpenSIPS-Users] Bug on TLS Management Interface
Message-ID: <7b5da8ab-346f-3231-f73f-95d0211f3...@opensips.org>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Hi Francisco,

Please check
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOpenSIPS%2Fopensips-cp%2Fcommit%2F1e738fd948fcc83004b0b99edb4f361c0a8b784c&amp;data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=WFKEe%2Bog0e8sGKwPrG23OpjmyZG3R8Er7VGDTqE9krY%3D&amp;reserved=0
- update again and give it a try by adding "*" for the match_domain

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
    
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips-solutions.com%2F&amp;data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=3rS5RxmkxjbV9hR2k5jJ%2F1ojvkqdYqw5FDKG54TJOcY%3D&amp;reserved=0
OpenSIPS Summit 27-30 Sept 2022, Athens
    
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On 8/16/22 11:32 PM, Francisco Neto wrote:

Hi Bogdan-Andrei!

Actually I've tried with using sip domain as blank, with * it didn't
let me press update on CP, and with the client certificate (fqdn and
domain part only) and in all scenarios the error is the same as
described below:

ERROR:proto_tls:proto_tls_conn_init: no TLS client domain found Aug 16
17:29:30 bowser /usr/sbin/opensips[1128]:
ERROR:core:tcp_conn_create: failed to do proto 3 specific init for
conn 0x7efe29a648a8 Aug 16 17:29:30 bowser /usr/sbin/opensips[1128]:
ERROR:core:tcp_sync_connect: tcp_conn_create failed, closing the
socket Aug 16 17:29:30 bowser /usr/sbin/opensips[1128]:
ERROR:proto_tls:proto_tls_send: connect failed Aug 16 17:29:30 bowser
/usr/sbin/opensips[1128]: ERROR:tm:msg_send:
send() to 52.114.132.46:5061 for proto tls/3 failed Aug 16 17:29:30
bowser /usr/sbin/opensips[1128]: ERROR:tm:t_uac:
attempt to send to 'sip:sip.pstnhub.microsoft.com:5061' failed Aug 16
17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:proto_tls:proto_tls_conn_init: no TLS client domain found Aug 16
17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:core:tcp_conn_create: failed to do proto 3 specific init for
conn 0x7efe29b341a8 Aug 16 17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:core:tcp_sync_connect: tcp_conn_create failed, closing the
socket Aug 16 17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:proto_tls:proto_tls_send: connect failed Aug 16 17:29:31 bowser
/usr/sbin/opensips[1128]: ERROR:tm:msg_send:
send() to 52.114.76.76:5061 for proto tls/3 failed Aug 16 17:29:31
bowser /usr/sbin/opensips[1128]: ERROR:tm:t_uac:
attempt to send to 'sip:sip2.pstnhub.microsoft.com:5061' failed Aug 16
17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:proto_tls:proto_tls_conn_init: no TLS client domain found Aug 16
17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:core:tcp_conn_create: failed to do proto 3 specific init for
conn 0x7efe29a17ec8 Aug 16 17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:core:tcp_sync_connect: tcp_conn_create failed, closing the
socket Aug 16 17:29:31 bowser /usr/sbin/opensips[1128]:
ERROR:proto_tls:proto_tls_send: connect failed Aug 16 17:29:31 bowser
/usr/sbin/opensips[1128]: ERROR:tm:msg_send:
send() to 52.114.14.70:5061 for proto tls/3 failed Aug 16 17:29:31
bowser /usr/sbin/opensips[1128]: ERROR:tm:t_uac:
attempt to send to 'sip:sip3.pstnhub.microsoft.com:5061' failed

Below is my actual config section about TLS

loadmodule "proto_tls.so"
modparam("proto_tls","tls_max_msg_chunks", 8)
modparam("proto_tls","tls_handshake_timeout", 600)
modparam("proto_tls", "tls_send_timeout", 2000)


loadmodule "tls_openssl.so"
loadmodule "tls_mgm.so"
modparam("tls_mgm",
"db_url","mysql://opensips:XXXXXXXXXX@localhost/opensips")
modparam("tls_mgm", "db_table", "tls_mgm") modparam("tls_mgm",
"client_sip_domain_avp", "tls_sip_dom")


Em 11 de ago. de 2022 12:59 -0300, Bogdan-Andrei Iancu
<bog...@opensips.org>, escreveu:

Hi Francisco,

So, if you use wildcard for match_sip_domain in the client TLS
domain, doesn't work for you ?

Regards.
Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww
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C0%7C0%7C637963181667269467%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp
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.opensips.org%2Fevents%2FSummit-2022Athens%2F&amp;data=05%7C01%7Cli.c
ai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c
1bd801ca6cc677828%7C0%7C0%7C637963181667269467%7CUnknown%7CTWFpbGZsb3
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CCVs%3D&amp;reserved=0 On 8/10/22 5:03 PM, Francisco Neto wrote:

Hi Bogdan-Andrei!

I've made the changes and now I can edit the TLS certificates
normally by control panel but I continue having a problem.

If I configure the certificate directly on the configuration file
the connection with Microsoft Teams is correctly established, if I
configure through control panel, I receive on log the following
messages:

ERROR:proto_tls:proto_tls_conn_init: no TLS client domain found Aug
10 11:00:04 bowser /usr/sbin/opensips[55047]:
ERROR:core:tcp_conn_create: failed to do proto 3 specific init for
conn 0x7f22a5f993d0 Aug 10 11:00:04 bowser
/usr/sbin/opensips[55047]:
ERROR:core:tcp_sync_connect: tcp_conn_create failed, closing the
socket Aug 10 11:00:04 bowser /usr/sbin/opensips[55047]:
ERROR:proto_tls:proto_tls_send: connect failed Aug 10 11:00:04
bowser /usr/sbin/opensips[55047]: ERROR:tm:msg_send:
send() to 52.114.132.46:5061 for proto tls/3 failed Aug 10 11:00:04
bowser /usr/sbin/opensips[55047]: ERROR:tm:t_uac:
attempt to send to 'sip:sip.pstnhub.microsoft.com' failed Aug 10
11:00:04 bowser /usr/sbin/opensips[55047]:
ERROR:proto_tls:proto_tls_conn_init: no TLS client domain found Aug
10 11:00:04 bowser /usr/sbin/opensips[55047]:
ERROR:core:tcp_conn_create: failed to do proto 3 specific init for
conn 0x7f22a5f91420 Aug 10 11:00:04 bowser
/usr/sbin/opensips[55047]:
ERROR:core:tcp_sync_connect: tcp_conn_create failed, closing the
socket Aug 10 11:00:04 bowser /usr/sbin/opensips[55047]:
ERROR:proto_tls:proto_tls_send: connect failed Aug 10 11:00:04
bowser /usr/sbin/opensips[55047]: ERROR:tm:msg_send:
send() to 52.114.76.76:5061 for proto tls/3 failed Aug 10 11:00:04
bowser /usr/sbin/opensips[55047]: ERROR:tm:t_uac:
attempt to send to 'sip:sip2.pstnhub.microsoft.com' failed Aug 10
11:00:05 bowser /usr/sbin/opensips[55047]:
ERROR:core:tcp_connect_blocking_timeout: connect timed out, 599667
us elapsed out of 600000 us Aug 10 11:00:05 bowser
/usr/sbin/opensips[55047]:
ERROR:core:tcp_sync_connect_fd: tcp_blocking_connect failed Aug 10
11:00:05 bowser /usr/sbin/opensips[55047]:
ERROR:proto_tls:proto_tls_send: connect failed Aug 10 11:00:05
bowser /usr/sbin/opensips[55047]: ERROR:tm:msg_send:
send() to 52.114.32.169:5061 for proto tls/3 failed Aug 10 11:00:05
bowser /usr/sbin/opensips[55047]: ERROR:tm:t_uac:
attempt to send to 'sip:sip3.pstnhub.microsoft.com' failed Aug 10
11:00:09 bowser /usr/sbin/opensips[55047]:
ERROR:proto_tls:proto_tls_conn_init: no TLS client domain found

I will send attached the screenshot of the control panel and below
the configuration that works.

If it isn't related to the same problem tell me and I send the
message to the open list ok!

Thanks!

# TLS CLIENT
#modparam("tls_mgm", "client_domain", "sbcsothis")
#modparam("tls_mgm", "match_sip_domain", "[sbcsothis]*")
#modparam("tls_mgm", "match_ip_address", "[sbcsothis]*")
#modparam("tls_mgm", "verify_cert", "[sbcsothis]1")
#modparam("tls_mgm", "require_cert", "[sbcsothis]1")
#modparam("tls_mgm", "tls_method", "[sbcsothis]TLSv1-")
#modparam("tls_mgm", "certificate",
"[sbcsothis]/etc/opensips/tls/user/sothistelecom.com.crt")
#modparam("tls_mgm", "private_key",
"[sbcsothis]/etc/opensips/tls/user/sothistelecom.com.key")
#modparam("tls_mgm", "ca_list",
"[sbcsothis]/etc/ssl/certs/ca-certificates.crt")
#modparam("tls_mgm", "ca_dir", "[sbcsothis]/etc/ssl/certs/")Config
file

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End of Users Digest, Vol 169, Issue 25
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Re: [OpenSIPS-Users] About obstacles to implement the matched Id in event

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