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

Vlad Patrascu vladp at opensips.org
Thu Aug 18 15:28:13 UTC 2022


Hi Li,

In 2.4 I think the only way is to use the same cachedb_local storage for 
everything 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
>
> -----Original Message-----
> From: Users <users-bounces at lists.opensips.org> On Behalf Of users-request at lists.opensips.org
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> Subject: Users Digest, Vol 169, Issue 25
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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 <vladp at opensips.org>
> To: users at 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-49640130aae4 at 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&data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6QxyCjy0NEZoKBkpyy2VYKakriwsEg6xrt%2FSV%2BisERk%3D&reserved=0
>
> Regards,
>
> --
> Vlad Patrascu
> OpenSIPS Core Developer
> https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.opensips-solutions.com%2F&data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=dA%2Fa%2BWYy3xqc9qAGN3koDHWwBn5rWC1gRxG6PM5OebM%3D&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 <bogdan at opensips.org>
> To: Francisco Neto <fneto at sothis.com.br>, "users at lists.opensips.org"
>          <users at lists.opensips.org>
> Subject: Re: [OpenSIPS-Users] Bug on TLS Management Interface
> Message-ID: <7b5da8ab-346f-3231-f73f-95d0211f3a4a at 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&data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=WFKEe%2Bog0e8sGKwPrG23OpjmyZG3R8Er7VGDTqE9krY%3D&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&data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181666956869%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3rS5RxmkxjbV9hR2k5jJ%2F1ojvkqdYqw5FDKG54TJOcY%3D&reserved=0
> OpenSIPS Summit 27-30 Sept 2022, Athens
>     https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.opensips.org%2Fevents%2FSummit-2022Athens%2F&data=05%7C01%7Cli.cai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7C0%7C0%7C637963181667269467%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=7HvX9ki%2Bj7QuwBkT%2FuX2upmCyCxHkm9bR26YsIyCCVs%3D&reserved=0
>
> 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
>> <bogdan at 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
>>> .opensips-solutions.com%2F&data=05%7C01%7Cli.cai%40comtech.com%7C
>>> 502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c1bd801ca6cc677828%7
>>> C0%7C0%7C637963181667269467%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
>>> DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp
>>> ;sdata=yp8rIlD05HWeQxkUb1ecaQtQLEdzoqz10UmhgzBTC7A%3D&reserved=0
>>> OpenSIPS Summit 27-30 Sept 2022, Athens
>>>
>>> https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww
>>> .opensips.org%2Fevents%2FSummit-2022Athens%2F&data=05%7C01%7Cli.c
>>> ai%40comtech.com%7C502ac1e5f328416b934908da80223535%7Ca9a26e696ae040c
>>> 1bd801ca6cc677828%7C0%7C0%7C637963181667269467%7CUnknown%7CTWFpbGZsb3
>>> d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%
>>> 7C3000%7C%7C%7C&sdata=7HvX9ki%2Bj7QuwBkT%2FuX2upmCyCxHkm9bR26YsIy
>>> CCVs%3D&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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