Hi Mohamed,

Thanks again for being patient and helpful in helping me to do the
integration between Kamailio and Asterisk ! but i have two questions for
you friend.

1.What is the $retcode variable and how to make use of it because i read
about it and can NOT get the exact idea about its function ?

2.If we need to insert the $retcode variable to get the error code
generated by the AUTH route to know the root cause of the problem so can i
ask you to do that for me ?! i know it might seem to be ridiculous from
your perspective but NOT from mine ! i do NOT have experience with
scripting.I've attached my configuration file and i will be thankful to you
Mohamed if you changed it by adding the variable so i can test again and
feedback.
Thanks in advance.


On Tue, Nov 18, 2014 at 3:26 PM, Muhammad Shahzad <[email protected]>
wrote:

> OK, there are two parts of the setup.
>
> 1. SIP user registers on Kamailio.
> 2. Kamailio registers on Asterisk (using SIP user credentials).
>
> As long as part 1 is not done, part 2 will not work. So lets break down
> the problem, first just forget part 2 and try to register SIP user on
> kamailio. Why it fails? There may be many reason, e.g.
>
> a). bad username,
> b). bad password,
> c). bad realm,
> d). expired or stale nonce
> and so on..
>
> The easiest way to identify what is causing this failure is edit your
> config, go to route[AUTH] block and in inside IF block of auth_check print
> the value of $retcode variable using xlog. After save, exit (config file),
> restart kamailio and attempt to register again, look at kamailio logs in
> syslog facility local0 (/var/log/syslog in debian / ubuntu or
> /var/log/message in centos / redhat). If the value of $retcode variable is
> printed, then compare it with this list of error codes,
>
> http://kamailio.org/docs/modules/4.2.x/modules/auth_db.html#idp89440
>
> This should tell you what is wrong where? Fix that and only after that you
> need to worry about asterisk side.
>
> Thank you.
>
>
> On Tue, Nov 18, 2014 at 3:20 AM, Mahmoud Ramadan Ali <
> [email protected]> wrote:
>
>> Hi Mohamed,
>> Thank you for your interest in helping me,I've configured the the
>> auth_db module with the Asterisk DB URL and the SIP username and password
>> table name and verified the MYSQL remote connection from Kamailio to the
>> Asterisk DB and get connected as predicted.
>>
>> I tried to register a phone after applying the changes and Kamailio
>> forwarded the register request to Asterisk only once and without successful
>> authentication ! now i didn't change anything in the configuration file and
>> can NOT get any registration requests forwarded from Kamailio to Asterisk
>> and get only events on Kamailio that it can NOT register the incoming
>> registration request like this.
>>
>> root@debian:/usr/local/etc/kamailio# ngrep -W byline -d eth1 port 5060
>> U 192.168.50.2:50886 -> 192.168.50.1:5060
>> REGISTER sip:192.168.50.1 SIP/2.0.
>> Via: SIP/2.0/UDP 192.168.50.2:50886
>> ;branch=z9hG4bK-d8754z-cb65023b979d0a36-1---d8754z-;rport.
>> Max-Forwards: 70.
>> Contact: <sip:[email protected]:50886;rinstance=8000799665fa4b54>.
>> To: "Mahmoud Ramadan Ali"<sip:[email protected]>.
>> From: "Mahmoud Ramadan Ali"<sip:[email protected]>;tag=9f381b5f.
>> Call-ID: MzcxNzYwMmUyN2E0M2FkMWRmOTI0ZjNkMjJmNWNhYTc.
>> CSeq: 2 REGISTER.
>> Expires: 3600.
>> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,
>> SUBSCRIBE, INFO.
>> User-Agent: X-Lite 4.7.1 74247--W6.1.
>> Authorization: Digest
>> username="1001",realm="192.168.50.1",nonce="VGqbxVRqmpngschsiE6AuMiOfCS/MIp7",uri="sip:192.168.50.1",response="1788f6b9cfc322b863a93c91f3b623dc",algorithm=MD5.
>> Content-Length: 0.
>> #
>> U 192.168.50.1:5060 -> 192.168.50.2:50886
>> SIP/2.0 401 Unauthorized.
>> Via: SIP/2.0/UDP 192.168.50.2:50886
>> ;branch=z9hG4bK-d8754z-cb65023b979d0a36-1---d8754z-;rport=50886.
>> To: "Mahmoud Ramadan Ali"<sip:[email protected]
>> >;tag=b27e1a1d33761e85846fc98f5f3a7e58.0bcb.
>> From: "Mahmoud Ramadan Ali"<sip:[email protected]>;tag=9f381b5f.
>> Call-ID: MzcxNzYwMmUyN2E0M2FkMWRmOTI0ZjNkMjJmNWNhYTc.
>> CSeq: 2 REGISTER.
>> WWW-Authenticate: Digest realm="192.168.50.1",
>> nonce="VGqbxVRqmpngschsiE6AuMiOfCS/MIp7".
>> Server: kamailio (4.1.6 (i386/linux)).
>> Content-Length: 0.
>>
>> But when using the Ngrep command on Asterisk to capture traffic on port
>> 5050 or even 5060 i get no thing ! other troubleshooting steps i followed
>> including :
>> 1.Verfiying the Mysql connection from Kamailio and the account tabe name
>> and SIP username / password column.
>>
>> root@debian:/usr/local/etc/kamailio# mysql -u sipuser -h 192.168.100.10
>> -p
>> Enter password:
>> Welcome to the MySQL monitor.  Commands end with ; or \g.
>> Your MySQL connection id is 149
>> Server version: 5.1.73 Source distribution
>>
>> Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights
>> reserved.
>>
>> Oracle is a registered trademark of Oracle Corporation and/or its
>> affiliates. Other names may be trademarks of their respective
>> owners.
>>
>> Type 'help;' or '\h' for help. Type '\c' to clear the current input
>> statement.
>>
>> mysql> use asterisk;
>> Reading table information for completion of table and column names
>> You can turn off this feature to get a quicker startup with -A
>>
>> Database changed
>> mysql> SELECT * FROM sip;
>> +------+------------------+---------------------------------+-------+
>> | id   | keyword          | data                            | flags |
>> +------+------------------+---------------------------------+-------+
>> | 1001 | pickupgroup      |                                 |    22 |
>> | 1001 | callgroup        |                                 |    21 |
>> | 1001 | encryption       | no                              |    20 |
>> | 1001 | icesupport       | no                              |    19 |
>> | 1001 | force_avp        | no                              |    18 |
>> | 1001 | avpf             | no                              |    17 |
>> | 1001 | transport        | udp,tcp,tls                     |    16 |
>> | 1001 | qualifyfreq      | 60                              |    15 |
>> | 1001 | qualify          | yes                             |    14 |
>> | 1001 | port             | 5050                            |    13 |
>> | 1001 | nat              | no                              |    12 |
>> | 1001 | type             | friend                          |    11 |
>> | 1001 | sendrpid         | no                              |    10 |
>> | 1001 | trustrpid        | yes                             |     9 |
>> | 1001 | host             | dynamic                         |     8 |
>> | 1001 | context          | from-internal                   |     7 |
>> | 1001 | canreinvite      | no                              |     6 |
>> | 1001 | dtmfmode         | rfc2833                         |     5 |
>> | 1001 | secret           | 1001secret                      |     4 |
>> | 1001 | secret_origional | 1001secret                      |     3 |
>> | 1001 | sipdriver        | chan_sip                        |     2 |
>> | 1001 | dial             | SIP/1001                        |    25 |
>> | 1002 | pickupgroup      |                                 |    22 |
>> | 1002 | callgroup        |                                 |    21 |
>> | 1002 | encryption       | no                              |    20 |
>> | 1002 | icesupport       | no                              |    19 |
>> | 1002 | force_avp        | no                              |    18 |
>> | 1002 | avpf             | no                              |    17 |
>> | 1002 | transport        | udp,tcp,tls                     |    16 |
>> | 1002 | qualifyfreq      | 60                              |    15 |
>> | 1002 | qualify          | yes                             |    14 |
>> | 1002 | port             | 5060                            |    13 |
>> | 1002 | nat              | no                              |    12 |
>> | 1002 | type             | friend                          |    11 |
>> | 1002 | sendrpid         | no                              |    10 |
>> | 1002 | trustrpid        | yes                             |     9 |
>> | 1002 | host             | dynamic                         |     8 |
>> | 1002 | context          | from-internal                   |     7 |
>> | 1002 | canreinvite      | no                              |     6 |
>> | 1002 | dtmfmode         | rfc2833                         |     5 |
>> | 1002 | secret           | 1002secret                      |     4 |
>> | 1002 | secret_origional | 1002secret                      |     3 |
>> | 1002 | sipdriver        | chan_sip                        |     2 |
>> | 1002 | dial             | SIP/1002                        |    25 |
>> | 1002 | disallow         |                                 |    23 |
>> | 1002 | allow            |                                 |    24 |
>> | 1002 | accountcode      |                                 |    26 |
>> | 1002 | mailbox          | 1002@device                     |    27 |
>> | 1002 | deny             | 0.0.0.0/0.0.0.0                 |    28 |
>> | 1002 | permit           | 0.0.0.0/0.0.0.0                 |    29 |
>> | 1002 | account          | 1002                            |    30 |
>> | 1002 | callerid         | Ahmed Ramadan's Device <1002>   |    31 |
>> | 1001 | disallow         |                                 |    23 |
>> | 1001 | allow            |                                 |    24 |
>> | 1001 | accountcode      |                                 |    26 |
>> | 1001 | mailbox          | 1001@device                     |    27 |
>> | 1001 | deny             | 0.0.0.0/0.0.0.0                 |    28 |
>> | 1001 | permit           | 0.0.0.0/0.0.0.0                 |    29 |
>> | 1001 | account          | 1001                            |    30 |
>> | 1001 | callerid         | Mahmoud Ramadan's Device <1001> |    31 |
>> +------+------------------+---------------------------------+-------+
>> 60 rows in set (0.00 sec)
>>
>> 2.Verifying that Asterisk can listen at 5050 which is the same Asterisk
>> port configured on Kamailio.
>>
>> [root@Asterisk VM 01 ~]# asterisk -r
>> Asterisk 11.13.1, Copyright (C) 1999 - 2013 Digium, Inc. and others.
>> Created by Mark Spencer <[email protected]>
>> Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for
>> details.
>> This is free software, with components licensed under the GNU General
>> Public
>> License version 2 and other licenses; you are welcome to redistribute it
>> under
>> certain conditions. Type 'core show license' for details.
>> =========================================================================
>> Connected to Asterisk 11.13.1 currently running on Asterisk VM 01 (pid =
>> 2456)
>> Asterisk VM 01*CLI> sip show settings
>>
>>
>> Global Settings:
>> ----------------
>>   UDP Bindaddress:        0.0.0.0:5050
>>
>> I know it is a long message but i wanted to give you all the INFO you
>> might need also I've attached my configuration file so you can check
>> it.Thank you Mohamed for your assistance.
>>
>> On Sun, Nov 16, 2014 at 8:25 PM, Muhammad Shahzad <[email protected]>
>> wrote:
>>
>>> Because both kamailio and asterisk use the same db table for
>>> authentication, see the auth_db module parameters in kamailio config.
>>>
>>> The REGISTER request from sip user is authenticated by kamailio using
>>> auth_db module and upon success kamailio generates REGISTER request back to
>>> asterisk (using the credentials sent by sip user for authentication with
>>> kamailio), this request is now authenticated by asterisk using realtime sip
>>> users interface.
>>>
>>> Thank you.
>>>
>>>
>>>
>>> On Sun, Nov 16, 2014 at 2:53 PM, Mahmoud Ramadan Ali <
>>> [email protected]> wrote:
>>>
>>>> Hi Muhammad,
>>>> If the users MUST authenticate to Kamailio first,This means that
>>>> Kamailio should be aware of the SIP users exist in the Asterisk DB to be
>>>> able to authenticate them and NOT receive 401 Unauthorized error message
>>>> from Kamailio.
>>>> My question now might be simple but it a point of confusion to me and
>>>> it is how to tell Kamailio about the SIP users in the Asterisk DB ?!
>>>>
>>>> Best Regards,
>>>>
>>>>
>>>> On Sun, Nov 16, 2014 at 3:01 PM, Muhammad Shahzad <
>>>> [email protected]> wrote:
>>>>
>>>>> This seems to be fine. The user MUST authenticate to Kamailio, only
>>>>> then Kamailio will create REGISTER request that is send to asterisk. 
>>>>> That's
>>>>> the key security feature behind the idea.
>>>>>
>>>>> Look at the register architecture diagram,
>>>>>
>>>>>
>>>>> http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb#registration
>>>>>
>>>>> Thank you.
>>>>>
>>>>>
>>>>>
>>>>> On Sat, Nov 15, 2014 at 10:31 PM, Mahmoud Ramadan Ali <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> Hi Dears,
>>>>>> I'm trying to configure Kamailio as SBC in multi home mode for
>>>>>> Asterisk by authenticating the inbound SIP registration requests,i'm
>>>>>> following this tutorial
>>>>>> http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb
>>>>>> to achieve this goal. i have modified the necessary changes like the
>>>>>> Asterisk DB URL and the SIP table name and Username and password column 
>>>>>> and
>>>>>> verified the connection.
>>>>>>
>>>>>> My topology like this *Asterisk (192.168.100.10)
>>>>>> <----Internal:192.168.100.1---->Kamailio<---External:192.168.50.1-----> 
>>>>>> SIP
>>>>>> Phone (192.168.50.2)*
>>>>>> But when trying to register a SIP phone Kamailio does NOT forward the
>>>>>> authentication request to Asterisk and sends 401 Unauthorized error
>>>>>> message.I've attached my config file if any one wants to check it and
>>>>>> thanks in advance.
>>>>>> Best Regards
>>>>>>
>>>>>>
>>>>>> U 192.168.50.2:37297 -> 192.168.50.1:5060
>>>>>> REGISTER sip:192.168.50.1;transport=UDP SIP/2.0.
>>>>>> Via: SIP/2.0/UDP 192.168.50.2:37297
>>>>>> ;branch=z9hG4bK-d8754z-a46e0c7c9d98fe52-1---d8754z-;rport;transport=UDP.
>>>>>> Max-Forwards: 70.
>>>>>> Contact: <sip:[email protected]:37297
>>>>>> ;rinstance=1d7c44dbcb8a7a2f;transport=UDP>.
>>>>>> To: <sip:[email protected];transport=UDP>.
>>>>>> From: <sip:[email protected];transport=UDP>;tag=1d222e19.
>>>>>> Call-ID: NTc2NDBjMGQ2YWFmZjdmNWI0MzVmN2Y4NzYyODJlMTc..
>>>>>> CSeq: 2 REGISTER.
>>>>>> Expires: 70.
>>>>>> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS,
>>>>>> INFO, SUBSCRIBE.
>>>>>> Supported: replaces, norefersub, extended-refer, timer,
>>>>>> X-cisco-serviceuri.
>>>>>> User-Agent: Z 3.2.21357 r21367.
>>>>>> Authorization: Digest
>>>>>> username="1001",realm="192.168.50.1",nonce="VGfAuFRnv4wMvoTG7wA9tqYD9fgZDe3D",uri="sip:192.168.50.1;transport=UDP",response="8bbd01d879250585eafee4f510689f73",algorithm=MD5.
>>>>>> Allow-Events: presence, kpml.
>>>>>> Content-Length: 0.
>>>>>> #
>>>>>> U 192.168.50.1:5060 -> 192.168.50.2:37297
>>>>>> SIP/2.0 401 Unauthorized.
>>>>>> Via: SIP/2.0/UDP 192.168.50.2:37297
>>>>>> ;branch=z9hG4bK-d8754z-a46e0c7c9d98fe52-1---d8754z-;rport=37297;transport=UDP.
>>>>>> To: <sip:[email protected]
>>>>>> ;transport=UDP>;tag=b27e1a1d33761e85846fc98f5f3a7e58.fe8b.
>>>>>> From: <sip:[email protected];transport=UDP>;tag=1d222e19.
>>>>>> Call-ID: NTc2NDBjMGQ2YWFmZjdmNWI0MzVmN2Y4NzYyODJlMTc..
>>>>>> CSeq: 2 REGISTER.
>>>>>> WWW-Authenticate: Digest realm="192.168.50.1",
>>>>>> nonce="VGfAuFRnv4wMvoTG7wA9tqYD9fgZDe3D".
>>>>>> Server: kamailio (4.1.6 (i386/linux)).
>>>>>> Content-Length: 0.
>>>>>>
>>>>>> _______________________________________________
>>>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
>>>>>> list
>>>>>> [email protected]
>>>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>>> [email protected]
>>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>> [email protected]
>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> [email protected]
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>>
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> [email protected]
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> [email protected]
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
#!KAMAILIO
 
#!define WITH_MYSQL
#!define WITH_AUTH
#!define WITH_USRLOCDB
#!define WITH_ASTERISK
 
#
# Kamailio (OpenSER) SIP Server v4.0 - default configuration script
#     - web: http://www.kamailio.org
#     - git: http://sip-router.org
#
# Direct your questions about this file to: <[email protected]>
#
# Refer to the Core CookBook at http://www.kamailio.org/dokuwiki/doku.php
# for an explanation of possible statements, functions and parameters.
#
# Several features can be enabled using '#!define WITH_FEATURE' directives:
#
# *** To run in debug mode: 
#     - define WITH_DEBUG
#
# *** To enable mysql: 
#     - define WITH_MYSQL
#
# *** To enable authentication execute:
#     - enable mysql
#     - define WITH_AUTH
#     - add users using 'kamctl'
#
# *** To enable IP authentication execute:
#     - enable mysql
#     - enable authentication
#     - define WITH_IPAUTH
#     - add IP addresses with group id '1' to 'address' table
#
# *** To enable persistent user location execute:
#     - enable mysql
#     - define WITH_USRLOCDB
#
# *** To enable presence server execute:
#     - enable mysql
#     - define WITH_PRESENCE
#
# *** To enable nat traversal execute:
#     - define WITH_NAT
#     - install RTPProxy: http://www.rtpproxy.org
#     - start RTPProxy:
#        rtpproxy -l _your_public_ip_ -s udp:localhost:7722
#
# *** To enable PSTN gateway routing execute:
#     - define WITH_PSTN
#     - set the value of pstn.gw_ip
#     - check route[PSTN] for regexp routing condition
#
# *** To enable database aliases lookup execute:
#     - enable mysql
#     - define WITH_ALIASDB
#
# *** To enable speed dial lookup execute:
#     - enable mysql
#     - define WITH_SPEEDDIAL
#
# *** To enable multi-domain support execute:
#     - enable mysql
#     - define WITH_MULTIDOMAIN
#
# *** To enable TLS support execute:
#     - adjust CFGDIR/tls.cfg as needed
#     - define WITH_TLS
#
# *** To enable XMLRPC support execute:
#     - define WITH_XMLRPC
#     - adjust route[XMLRPC] for access policy
#
# *** To enable anti-flood detection execute:
#     - adjust pike and htable=>ipban settings as needed (default is
#       block if more than 16 requests in 2 seconds and ban for 300 seconds)
#     - define WITH_ANTIFLOOD
#
# *** To block 3XX redirect replies execute:
#     - define WITH_BLOCK3XX
#
# *** To enable VoiceMail routing execute:
#     - define WITH_VOICEMAIL
#     - set the value of voicemail.srv_ip
#     - adjust the value of voicemail.srv_port
#
# *** To enhance accounting execute:
#     - enable mysql
#     - define WITH_ACCDB
#     - add following columns to database
#!ifdef ACCDB_COMMENT
  ALTER TABLE acc ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN src_ip varchar(64) NOT NULL default '';
  ALTER TABLE acc ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT 
'';
  ALTER TABLE missed_calls ADD COLUMN src_ip varchar(64) NOT NULL default '';
  ALTER TABLE missed_calls ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT 
'';
#!endif
 
####### Defined Values #########
 
# *** Value defines - IDs used later in config
#!ifdef WITH_MYSQL
# - database URL - used to connect to database server by modules such
#       as: auth_db, acc, usrloc, a.s.o.
#!define DBURL "mysql://kamailio:kamailiorw@localhost/kamailio"
#!ifdef WITH_ASTERISK
#!define DBASTURL "mysql://sipuser:[email protected]/asterisk"
#!endif
#!endif
#!ifdef WITH_MULTIDOMAIN
# - the value for 'use_domain' parameters
#!define MULTIDOMAIN 1
#!else
#!define MULTIDOMAIN 0
#!endif
 
# - flags
#   FLT_ - per transaction (message) flags
#       FLB_ - per branch flags
#!define FLT_ACC 1
#!define FLT_ACCMISSED 2
#!define FLT_ACCFAILED 3
#!define FLT_NATS 5
 
#!define FLB_NATB 6
#!define FLB_NATSIPPING 7
 
####### Global Parameters #########
 
#!ifdef WITH_DEBUG
debug=4
log_stderror=yes
#!else
debug=2
log_stderror=no
#!endif
 
memdbg=5
memlog=5
 
log_facility=LOG_LOCAL0
 
fork=yes
children=4
 
/* uncomment the next line to disable TCP (default on) */
#disable_tcp=yes
 
/* uncomment the next line to disable the auto discovery of local aliases
   based on reverse DNS on IPs (default on) */
#auto_aliases=no
 
/* add local domain aliases */
#alias="sip.mydomain.com"
 
/* uncomment and configure the following line if you want Kamailio to 
   bind on a specific interface/port/proto (default bind on all available) */
#listen=udp:10.0.0.10:5060
 
/* port to listen to
 * - can be specified more than once if needed to listen on many ports */
port=5060
 
#!ifdef WITH_TLS
enable_tls=yes
#!endif
 
# life time of TCP connection when there is no traffic
# - a bit higher than registration expires to cope with UA behind NAT
tcp_connection_lifetime=3605
mhomed=1 
####### Custom Parameters #########
 
# These parameters can be modified runtime via RPC interface
# - see the documentation of 'cfg_rpc' module.
#
# Format: group.id = value 'desc' description
# Access: $sel(cfg_get.group.id) or @cfg_get.group.id
#
 
#!ifdef WITH_PSTN
# PSTN GW Routing
#
# - pstn.gw_ip: valid IP or hostname as string value, example:
# pstn.gw_ip = "10.0.0.101" desc "My PSTN GW Address"
#
# - by default is empty to avoid misrouting
pstn.gw_ip = "" desc "PSTN GW Address"
#!endif
 
#!ifdef WITH_VOICEMAIL
# VoiceMail Routing on offline, busy or no answer
#
# - by default Voicemail server IP is empty to avoid misrouting
voicemail.srv_ip = "192.168.100.10" desc "VoiceMail IP Address"
voicemail.srv_port = "5050" desc "VoiceMail Port"
#!endif
 
 
#!ifdef WITH_ASTERISK
asterisk.bindip = "192.168.100.10" desc "Asterisk IP Address"
asterisk.bindport = "5050" desc "Asterisk Port"
kamailio.bindip = "192.168.100.1" desc "Kamailio IP Address"
kamailio.bindport = "5060" desc "Kamailio Port"
#!endif
 
####### Modules Section ########
 
# set paths to location of modules (to sources or installation folders)
#!ifdef WITH_SRCPATH
mpath="modules_k:modules"
#!else
mpath="/usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/"
#!endif
 
#!ifdef WITH_MYSQL
loadmodule "db_mysql.so"
#!endif
 
loadmodule "mi_fifo.so"
loadmodule "kex.so"
loadmodule "tm.so"
loadmodule "tmx.so"
loadmodule "sl.so"
loadmodule "rr.so"
loadmodule "pv.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "siputils.so"
loadmodule "xlog.so"
loadmodule "sanity.so"
loadmodule "ctl.so"
loadmodule "cfg_rpc.so"
loadmodule "mi_rpc.so"
loadmodule "acc.so"
 
#!ifdef WITH_AUTH
loadmodule "auth.so"
loadmodule "auth_db.so"
#!ifdef WITH_IPAUTH
loadmodule "permissions.so"
#!endif
#!endif
 
#!ifdef WITH_ALIASDB
loadmodule "alias_db.so"
#!endif
 
#!ifdef WITH_SPEEDDIAL
loadmodule "speeddial.so"
#!endif
 
#!ifdef WITH_MULTIDOMAIN
loadmodule "domain.so"
#!endif
 
#!ifdef WITH_PRESENCE
loadmodule "presence.so"
loadmodule "presence_xml.so"
#!endif
 
#!ifdef WITH_NAT
loadmodule "nathelper.so"
loadmodule "rtpproxy.so"
#!endif
 
#!ifdef WITH_TLS
loadmodule "tls.so"
#!endif
 
#!ifdef WITH_ANTIFLOOD
loadmodule "htable.so"
loadmodule "pike.so"
#!endif
 
#!ifdef WITH_XMLRPC
loadmodule "xmlrpc.so"
#!endif
 
#!ifdef WITH_DEBUG
loadmodule "debugger.so"
#!endif
 
#!ifdef WITH_ASTERISK
loadmodule "uac.so"
#!endif
 
# ----------------- setting module-specific parameters ---------------
 
 
# ----- mi_fifo params -----
modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")
 
 
# ----- tm params -----
# auto-discard branches from previous serial forking leg
modparam("tm", "failure_reply_mode", 3)
# default retransmission timeout: 30sec
modparam("tm", "fr_timer", 30000)
# default invite retransmission timeout after 1xx: 120sec
modparam("tm", "fr_inv_timer", 120000)
 
 
# ----- rr params -----
# add value to ;lr param to cope with most of the UAs
modparam("rr", "enable_full_lr", 1)
# do not append from tag to the RR (no need for this script)
#!ifdef WITH_ASTERISK
modparam("rr", "append_fromtag", 1)
#!else
modparam("rr", "append_fromtag", 0)
#!endif
 
# ----- registrar params -----
modparam("registrar", "method_filtering", 1)
/* uncomment the next line to disable parallel forking via location */
# modparam("registrar", "append_branches", 0)
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)
# max value for expires of registrations
modparam("registrar", "max_expires", 3600)
# set it to 1 to enable GRUU
modparam("registrar", "gruu_enabled", 0)
 
 
# ----- acc params -----
/* what special events should be accounted ? */
modparam("acc", "early_media", 0)
modparam("acc", "report_ack", 0)
modparam("acc", "report_cancels", 0)
/* by default ww do not adjust the direct of the sequential requests.
   if you enable this parameter, be sure the enable "append_fromtag"
   in "rr" module */
modparam("acc", "detect_direction", 0)
/* account triggers (flags) */
modparam("acc", "log_flag", FLT_ACC)
modparam("acc", "log_missed_flag", FLT_ACCMISSED)
modparam("acc", "log_extra", 
        "src_user=$fU;src_domain=$fd;src_ip=$si;"
        "dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")
modparam("acc", "failed_transaction_flag", FLT_ACCFAILED)
/* enhanced DB accounting */
#!ifdef WITH_ACCDB
modparam("acc", "db_flag", FLT_ACC)
modparam("acc", "db_missed_flag", FLT_ACCMISSED)
modparam("acc", "db_url", DBURL)
modparam("acc", "db_extra",
        "src_user=$fU;src_domain=$fd;src_ip=$si;"
        "dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")
#!endif
 
 
# ----- usrloc params -----
/* enable DB persistency for location entries */
#!ifdef WITH_USRLOCDB
modparam("usrloc", "db_url", DBURL)
modparam("usrloc", "db_mode", 2)
modparam("usrloc", "use_domain", MULTIDOMAIN)
#!endif
 
 
# ----- auth_db params -----
#!ifdef WITH_AUTH
modparam("auth_db", "user_column", "account")
modparam("auth_db", "password_column", "secret")
modparam("auth_db", "db_url", 
"mysql://sipuser:[email protected]/asterisk")
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "load_credentials", "")
 
#!ifdef WITH_ASTERISK
modparam("auth_db", "user_column", "account")
modparam("auth_db", "password_column", "secret")
modparam("auth_db", "db_url", 
"mysql://sipuser:[email protected]/asterisk")
modparam("auth_db", "version_table", 0)
#!else
modparam("auth_db", "db_url", 
"db_url","mysql://sipuser:[email protected]/asterisk")
modparam("auth_db", "password_column", "secret")
modparam("auth_db", "user_column", "account")
modparam("auth_db", "use_domain", MULTIDOMAIN)
#!endif
 
# ----- permissions params -----
#!ifdef WITH_IPAUTH
modparam("permissions", "db_url", DBURL)
modparam("permissions", "db_mode", 1)
#!endif
 
#!endif
 
 
# ----- alias_db params -----
#!ifdef WITH_ALIASDB
modparam("alias_db", "db_url", DBURL)
modparam("alias_db", "use_domain", MULTIDOMAIN)
#!endif
 
 
# ----- speedial params -----
#!ifdef WITH_SPEEDDIAL
modparam("speeddial", "db_url", DBURL)
modparam("speeddial", "use_domain", MULTIDOMAIN)
#!endif
 
 
# ----- domain params -----
#!ifdef WITH_MULTIDOMAIN
modparam("domain", "db_url", DBURL)
# register callback to match myself condition with domains list
modparam("domain", "register_myself", 1)
#!endif
 
 
#!ifdef WITH_PRESENCE
# ----- presence params -----
modparam("presence", "db_url", DBURL)
 
# ----- presence_xml params -----
modparam("presence_xml", "db_url", DBURL)
modparam("presence_xml", "force_active", 1)
#!endif
 
 
#!ifdef WITH_NAT
# ----- rtpproxy params -----
modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")
 
# ----- nathelper params -----
modparam("nathelper", "natping_interval", 30)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
modparam("nathelper", "sipping_from", "sip:[email protected]")
 
# params needed for NAT traversal in other modules
modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")
modparam("usrloc", "nat_bflag", FLB_NATB)
#!endif
 
 
#!ifdef WITH_TLS
# ----- tls params -----
modparam("tls", "config", "/usr/local/etc/kamailio/tls.cfg")
#!endif
 
#!ifdef WITH_ANTIFLOOD
# ----- pike params -----
modparam("pike", "sampling_time_unit", 2)
modparam("pike", "reqs_density_per_unit", 16)
modparam("pike", "remove_latency", 4)
 
# ----- htable params -----
# ip ban htable with autoexpire after 5 minutes
modparam("htable", "htable", "ipban=>size=8;autoexpire=300;")
#!endif
 
#!ifdef WITH_XMLRPC
# ----- xmlrpc params -----
modparam("xmlrpc", "route", "XMLRPC");
modparam("xmlrpc", "url_match", "^/RPC")
#!endif
 
#!ifdef WITH_DEBUG
# ----- debugger params -----
modparam("debugger", "cfgtrace", 1)
#!endif
 
####### Routing Logic ########
 
 
# Main SIP request routing logic
# - processing of any incoming SIP request starts with this route
# - note: this is the same as route { ... }
request_route {
 
        # per request initial checks
        route(REQINIT);
 
        # NAT detection
        route(NATDETECT);
 
        # handle requests within SIP dialogs
        route(WITHINDLG);
 
        ### only initial requests (no To tag)
 
        # CANCEL processing
        if (is_method("CANCEL"))
        {
                if (t_check_trans())
                        t_relay();
                exit;
        }
 
        t_check_trans();
 
        # authentication
        route(AUTH);
 
        # record routing for dialog forming requests (in case they are routed)
        # - remove preloaded route headers
        remove_hf("Route");
        if (is_method("INVITE|SUBSCRIBE"))
                record_route();
 
        # account only INVITEs
        if (is_method("INVITE"))
        {
                setflag(FLT_ACC); # do accounting
        }
 
        # dispatch requests to foreign domains
        route(SIPOUT);
 
        ### requests for my local domains
 
        # handle presence related requests
        route(PRESENCE);
 
        # handle registrations
        route(REGISTRAR);
 
        if ($rU==$null)
        {
                # request with no Username in RURI
                sl_send_reply("484","Address Incomplete");
                exit;
        }
 
        # dispatch destinations to PSTN
        route(PSTN);
 
        # user location service
        route(LOCATION);
 
        route(RELAY);
}
 
 
route[RELAY] {
 
        # enable additional event routes for forwarded requests
        # - serial forking, RTP relaying handling, a.s.o.
        if (is_method("INVITE|SUBSCRIBE")) {
                t_on_branch("MANAGE_BRANCH");
                t_on_reply("MANAGE_REPLY");
        }
        if (is_method("INVITE")) {
                t_on_failure("MANAGE_FAILURE");
        }
 
        if (!t_relay()) {
                sl_reply_error();
        }
        exit;
}
 
# Per SIP request initial checks
route[REQINIT] {
#!ifdef WITH_ANTIFLOOD
        # flood dection from same IP and traffic ban for a while
        # be sure you exclude checking trusted peers, such as pstn gateways
        # - local host excluded (e.g., loop to self)
        if(src_ip!=myself)
        {
                if($sht(ipban=>$si)!=$null)
                {
                        # ip is already blocked
                        xdbg("request from blocked IP - $rm from $fu 
(IP:$si:$sp)\n");
                        exit;
                }
                if (!pike_check_req())
                {
                        xlog("L_ALERT","ALERT: pike blocking $rm from $fu 
(IP:$si:$sp)\n");
                        $sht(ipban=>$si) = 1;
                        exit;
                }
        }
#!endif
 
        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                exit;
        }
 
        if(!sanity_check("1511", "7"))
        {
                xlog("Malformed SIP message from $si:$sp\n");
                exit;
        }
}
 
# Handle requests within SIP dialogs
route[WITHINDLG] {
        if (has_totag()) {
                # sequential request withing a dialog should
                # take the path determined by record-routing
                if (loose_route()) {
                        if (is_method("BYE")) {
                                setflag(FLT_ACC); # do accounting ...
                                setflag(FLT_ACCFAILED); # ... even if the 
transaction fails
                        }
                        if ( is_method("ACK") ) {
                                # ACK is forwarded statelessy
                                route(NATMANAGE);
                        }
                        route(RELAY);
                } else {
                        if (is_method("SUBSCRIBE") && uri == myself) {
                                # in-dialog subscribe requests
                                route(PRESENCE);
                                exit;
                        }
                        if ( is_method("ACK") ) {
                                if ( t_check_trans() ) {
                                        # no loose-route, but stateful ACK;
                                        # must be an ACK after a 487
                                        # or e.g. 404 from upstream server
                                        t_relay();
                                        exit;
                                } else {
                                        # ACK without matching transaction ... 
ignore and discard
                                        exit;
                                }
                        }
                        sl_send_reply("404","Not here");
                }
                exit;
        }
}
 
# Handle SIP registrations
route[REGISTRAR] {
        if (is_method("REGISTER"))
        {
                if(isflagset(FLT_NATS))
                {
                        setbflag(FLB_NATB);
                        # uncomment next line to do SIP NAT pinging 
                        ## setbflag(FLB_NATSIPPING);
                }
                if (!save("location"))
                        sl_reply_error();
 
#!ifdef WITH_ASTERISK
                route(REGFWD);
#!endif
 
                exit;
        }
}
 
# USER location service
route[LOCATION] {
 
#!ifdef WITH_SPEEDIAL
        # search for short dialing - 2-digit extension
        if($rU=~"^[0-9][0-9]$")
                if(sd_lookup("speed_dial"))
                        route(SIPOUT);
#!endif
 
#!ifdef WITH_ALIASDB
        # search in DB-based aliases
        if(alias_db_lookup("dbaliases"))
                route(SIPOUT);
#!endif
 
#!ifdef WITH_ASTERISK
        if(is_method("INVITE") && (!route(FROMASTERISK))) {
                # if new call from out there - send to Asterisk
                # - non-INVITE request are routed directly by Kamailio
                # - traffic from Asterisk is routed also directy by Kamailio
                route(TOASTERISK);
                exit;
        }
#!endif
 
        $avp(oexten) = $rU;
        if (!lookup("location")) {
                $var(rc) = $rc;
                route(TOVOICEMAIL);
                t_newtran();
                switch ($var(rc)) {
                        case -1:
                        case -3:
                                send_reply("404", "Not Found");
                                exit;
                        case -2:
                                send_reply("405", "Method Not Allowed");
                                exit;
                }
        }
 
        # when routing via usrloc, log the missed calls also
        if (is_method("INVITE"))
        {
                setflag(FLT_ACCMISSED);
        }
}
 
# Presence server route
route[PRESENCE] {
        if(!is_method("PUBLISH|SUBSCRIBE"))
                return;
 
#!ifdef WITH_PRESENCE
        if (!t_newtran())
        {
                sl_reply_error();
                exit;
        };
 
        if(is_method("PUBLISH"))
        {
                handle_publish();
                t_release();
        }
        else
        if( is_method("SUBSCRIBE"))
        {
                handle_subscribe();
                t_release();
        }
        exit;
#!endif
 
        # if presence enabled, this part will not be executed
        if (is_method("PUBLISH") || $rU==$null)
        {
                sl_send_reply("404", "Not here");
                exit;
        }
        return;
}
 
# Authentication route
route[AUTH] {
 
        # if caller is not local subscriber, then check if it calls
        # a local destination, otherwise deny, not an open relay here
        if (from_uri!=myself && uri!=myself)
        {
                sl_send_reply("403","Not relaying");
                exit;
        }
 
#!ifdef WITH_AUTH
 
#!ifdef WITH_ASTERISK
        # do not auth traffic from Asterisk - trusted!
        if(route(FROMASTERISK))
                return;
#!endif
 
#!ifdef WITH_IPAUTH
        if((!is_method("REGISTER")) && allow_source_address())
        {
                # source IP allowed
                return;
        }
#!endif
 
        if (is_method("REGISTER") || from_uri==myself)
        {
                # authenticate requests
#!ifdef WITH_ASTERISK
                if (!auth_check("$fd", "sip", "1")) {
#!else
                if (!auth_check("$fd", "sip", "1")) {
#!endif
                        auth_challenge("$fd", "0");
                        exit;
                }
                # user authenticated - remove auth header
                if(!is_method("REGISTER|PUBLISH"))
                        consume_credentials();
        }
#!endif
        return;
}
 
# Caller NAT detection route
route[NATDETECT] {
#!ifdef WITH_NAT
        force_rport();
        if (nat_uac_test("19")) {
                if (is_method("REGISTER")) {
                        fix_nated_register();
                } else {
                        fix_nated_contact();
                }
                setflag(FLT_NATS);
        }
#!endif
        return;
}
 
# RTPProxy control
route[NATMANAGE] {
#!ifdef WITH_NAT
        if (is_request()) {
                if(has_totag()) {
                        if(check_route_param("nat=yes")) {
                                setbflag(FLB_NATB);
                        }
                }
        }
        if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
                return;
 
        rtpproxy_manage();
 
        if (is_request()) {
                if (!has_totag()) {
                        add_rr_param(";nat=yes");
                }
        }
        if (is_reply()) {
                if(isbflagset(FLB_NATB)) {
                        fix_nated_contact();
                }
        }
#!endif
        return;
}
 
# Routing to foreign domains
route[SIPOUT] {
        if (!uri==myself)
        {
                append_hf("P-hint: outbound\r\n");
                route(RELAY);
        }
}
 
# PSTN GW routing
route[PSTN] {
#!ifdef WITH_PSTN
        # check if PSTN GW IP is defined
        if (strempty($sel(cfg_get.pstn.gw_ip))) {
                xlog("SCRIPT: PSTN rotuing enabled but pstn.gw_ip not 
defined\n");
                return;
        }
 
        # route to PSTN dialed numbers starting with '+' or '00'
        #     (international format)
        # - update the condition to match your dialing rules for PSTN routing
        if(!($rU=~"^(\+|00)[1-9][0-9]{3,20}$"))
                return;
 
        # only local users allowed to call
        if(from_uri!=myself) {
                sl_send_reply("403", "Not Allowed");
                exit;
        }
 
        $ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);
 
        route(RELAY);
        exit;
#!endif
 
        return;
}
 
# XMLRPC routing
#!ifdef WITH_XMLRPC
route[XMLRPC] {
        # allow XMLRPC from localhost
        if ((method=="POST" || method=="GET")
                        && (src_ip==127.0.0.1)) {
                # close connection only for xmlrpclib user agents (there is a 
bug in
                # xmlrpclib: it waits for EOF before interpreting the response).
                if ($hdr(User-Agent) =~ "xmlrpclib")
                        set_reply_close();
                set_reply_no_connect();
                dispatch_rpc();
                exit;
        }
        send_reply("403", "Forbidden");
        exit;
}
#!endif
 
# route to voicemail server
route[TOVOICEMAIL] {
#!ifdef WITH_VOICEMAIL
        if(!is_method("INVITE"))
                return;
 
        # check if VoiceMail server IP is defined
        if (strempty($sel(cfg_get.voicemail.srv_ip))) {
                xlog("SCRIPT: VoiceMail rotuing enabled but IP not defined\n");
                return;
        }
        if($avp(oexten)==$null)
                return;
 
        $ru = "sip:" + $avp(oexten) + "@" + $sel(cfg_get.voicemail.srv_ip)
                                + ":" + $sel(cfg_get.voicemail.srv_port);
        route(RELAY);
        exit;
#!endif
 
        return;
}
 
# manage outgoing branches
branch_route[MANAGE_BRANCH] {
        xdbg("new branch [$T_branch_idx] to $ru\n");
        route(NATMANAGE);
}
 
# manage incoming replies
onreply_route[MANAGE_REPLY] {
        xdbg("incoming reply\n");
        if(status=~"[12][0-9][0-9]")
                route(NATMANAGE);
}
 
# manage failure routing cases
failure_route[MANAGE_FAILURE] {
        route(NATMANAGE);
 
        if (t_is_canceled()) {
                exit;
        }
 
#!ifdef WITH_BLOCK3XX
        # block call redirect based on 3xx replies.
        if (t_check_status("3[0-9][0-9]")) {
                t_reply("404","Not found");
                exit;
        }
#!endif
 
#!ifdef WITH_VOICEMAIL
        # serial forking
        # - route to voicemail on busy or no answer (timeout)
        if (t_check_status("486|408")) {
                route(TOVOICEMAIL);
                exit;
        }
#!endif
}
 
#!ifdef WITH_ASTERISK
# Test if coming from Asterisk
route[FROMASTERISK] {
        if($si==$sel(cfg_get.asterisk.bindip)
                        && $sp==$sel(cfg_get.asterisk.bindport))
                return 1;
        return -1;
}
 
# Send to Asterisk
route[TOASTERISK] {
        $du = "sip:" + $sel(cfg_get.asterisk.bindip) + ":"
                        + $sel(cfg_get.asterisk.bindport);
        route(RELAY);
        exit;
}
 
# Forward REGISTER to Asterisk
route[REGFWD] {
        if(!is_method("REGISTER"))
        {
                return;
        }
        $var(rip) = $sel(cfg_get.asterisk.bindip);
        $uac_req(method)="REGISTER";
        $uac_req(ruri)="sip:" + $var(rip) + ":" + 
$sel(cfg_get.asterisk.bindport);
        $uac_req(furi)="sip:" + $au + "@" + $var(rip);
        $uac_req(turi)="sip:" + $au + "@" + $var(rip);
        $uac_req(hdrs)="Contact: <sip:" + $au + "@"
                                + $sel(cfg_get.kamailio.bindip)
                                + ":" + $sel(cfg_get.kamailio.bindport) + 
">\r\n";
        if($sel(contact.expires) != $null)
                $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + 
$sel(contact.expires) + "\r\n";
        else
                $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + 
"\r\n";
        uac_req_send();
}
#!endif
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