[SR-Users] call not going to end point
David Villasmil
david.villasmil.work at gmail.com
Sun Nov 24 23:36:59 CET 2019
I'd do it with the permissions module:
something like this:
#!define WITH_IPAUTH
Then add your fs ip like:
kamctl address add 100 [YOUR-FS-IP]
Then use it like this:
if ( is_method("INVITE") {
$var(group) = allow_source_address_group();
if ( $var(group)==100 ) {
#... This INVITE is coming from freeSWITCH
} else {
#... This INVITE is NOT coming from FS
}
}
Regards,
David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
On Sun, Nov 24, 2019 at 11:58 AM Gaurav Bmotra <saigauravmehra91 at gmail.com>
wrote:
> hi
> i m using kamailio 5.4 dev Docker image
> when i try to call form calientA to clientB i got (Temporarily
> Unavailable (code: 480))
> i m using freeswitch as media server
> so the flow and structure should be like this
> ClientA---->Kamailio------>FS---->Kamailio>---->ClientB
>
> but issue is (what i m getting )
>
> ClientA---->Kamailio------>FS---->Kamailio>-------->FS-------->kamailio--------->FS
> IT CREATE THE CALL LOOP b/w KAMAILIO AND FREESWITCH
> *MY CONFIG FILE IS ATACHED *
> in logs i m getting
> --------------------------------------------------------
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:create_twinlistener: can't bind to the IPv4 port 38902: Address
> not available (99)
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:rtpp_command_ul_handle: can't create listener
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:rtpc_doreply: sending reply "E72\n"
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:get_command: received command "18_4 Uc0,8,101
> 9857c00a-8947-1238-c6a7-12590b724429 3.82.96.70 22082 jKrKymKNg480p;1"
> Nov 24 10:25:36 ip-172-20-61-37 local0.info rtpproxy[6]:
> INFO:GLOBAL:rtpp_command_ul_handle: new IPv4/IPv4 session
> 9857c00a-8947-1238-c6a7-12590b724429, tag jKrKymKNg480p;1 requested, type
> strong
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:create_twinlistener: can't bind to the IPv4 port 35888: Address
> not available (99)
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:rtpp_command_ul_handle: can't create listener
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:rtpc_doreply: sending reply "E72\n"
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:get_command: received command "20_4 Uc0,8,101
> 98589959-8947-1238-c6a7-12590b724429 3.82.96.70 29846 m5a51aNvapN6D;1"
> Nov 24 10:25:36 ip-172-20-61-37 local0.info rtpproxy[6]:
> INFO:GLOBAL:rtpp_command_ul_handle: new IPv4/IPv4 session
> 98589959-8947-1238-c6a7-12590b724429, tag m5a51aNvapN6D;1 requested, type
> strong
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:create_twinlistener: can't bind to the IPv4 port 37706: Address
> not available (99)
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:rtpp_command_ul_handle: can't create listener
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:rtpc_doreply: sending reply "E72\n"
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:get_command: received command "13_4 Uc0,8,101
> 985962c1-8947-1238-c6a7-12590b724429 3.82.96.70 29432 pQXp50p3471BN;1"
> Nov 24 10:25:36 ip-172-20-61-37 local0.info rtpproxy[6]:
> INFO:GLOBAL:rtpp_command_ul_handle: new IPv4/IPv4 session
> 985962c1-8947-1238-c6a7-12590b724429, tag pQXp50p3471BN;1 requested, type
> strong
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:create_twinlistener: can't bind to the IPv4 port 45078: Address
> not available (99)
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:rtpp_command_ul_handle: can't create listener
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:rtpc_doreply: sending reply "E72\n"
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:get_command: received command "16_5 Uc0,8,101
> 985a3ce3-8947-1238-c6a7-12590b724429 3.82.96.70 25096 r9F88praZSeHc;1"
> Nov 24 10:25:36 ip-172-20-61-37 local0.info rtpproxy[6]:
> INFO:GLOBAL:rtpp_command_ul_handle: new IPv4/IPv4 session
> 985a3ce3-8947-1238-c6a7-12590b724429, tag r9F88praZSeHc;1 requested, type
> strong
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:create_twinlistener: can't bind to the IPv4 port 58376: Address
> not available (99)
> Nov 24 10:25:36 ip-172-20-61-37 local0.err rtpproxy[6]:
> ERR:GLOBAL:rtpp_command_ul_handle: can't create listener
> Nov 24 10:25:36 ip-172-20-61-37 local0.debug rtpproxy[6]:
> DBUG:GLOBAL:rtpc_doreply: sending reply "E72\n"
>
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>
> *here is my config file *
> #!KAMAILIO
> #!define WITH_MYSQL
> #!define WITH_AUTH
> #!define WITH_USRLOCDB
> #!define WITH_ACCDB
> #!define WITH_NAT
>
> #
> # Kamailio (OpenSER) SIP Server v5.4 - default configuration script
> # - web: https://www.kamailio.org
> # - git: https://github.com/kamailio/kamailio
> #
> # Direct your questions about this file to: <sr-users at lists.kamailio.org>
> #
> # Refer to the Core CookBook at https://www.kamailio.org/wiki/
> # for an explanation of possible statements, functions and parameters.
> #
> # Note: the comments can be:
> # - lines starting with #, but not the pre-processor directives,
> # which start with #!, like #!define, #!ifdef, #!endif, #!else,
> #!trydef,
> # #!subst, #!substdef, ...
> # - lines starting with //
> # - blocks enclosed in between /* */
> #
> # 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
> # - option for NAT SIP OPTIONS keepalives: WITH_NATSIPPING
> # - install RTPProxy: http://www.rtpproxy.org
> # - start RTPProxy:
> # rtpproxy -l _your_public_ip_ -s udp:localhost:7722
> #
> # *** To use RTPEngine (instead of RTPProxy) for nat traversal execute:
> # - define WITH_RTPENGINE
> # - install RTPEngine: https://github.com/sipwise/rtpengine
> # - start RTPEngine:
> # rtpengine --listen-ng=127.0.0.1:2223 ...
> #
> # *** 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 block 401 and 407 authentication replies execute:
> # - define WITH_BLOCK401407
> #
> # *** 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
>
> ####### Include Local Config If Exists #########
> import_file "kamailio-local.cfg"
>
> ####### 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.
> #!ifndef DBURL
> #!define DBURL "mysql://kamailio:kamailiorw@localhost/kamailio"
> #!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 #########
>
> ### LOG Levels: 3=DBG, 2=INFO, 1=NOTICE, 0=WARN, -1=ERR
> #!ifdef WITH_DEBUG
> debug=4
> log_stderror=yes
> #!else
> debug=2
> log_stderror=no
> #!endif
>
> memdbg=5
> memlog=5
>
> log_facility=LOG_LOCAL0
> log_prefix="{$mt $hdr(CSeq) $ci} "
>
> /* number of SIP routing processes for each UDP socket
> * - value inherited by tcp_children and sctp_children when not set
> explicitely */
> children=8
>
> /* uncomment the next line to disable TCP (default on) */
> # disable_tcp=yes
>
> /* number of SIP routing processes for all TCP/TLS sockets */
> # tcp_children=8
>
> /* 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
> listen=udp:LOCAL_IP:5091 advertise PUBLIC_IP:5091
>
> /* 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
>
> /* upper limit for TCP connections (it includes the TLS connections) */
> tcp_max_connections=2048
>
> #!ifdef WITH_TLS
> enable_tls=yes
>
> /* upper limit for TLS connections */
> tls_max_connections=2048
> #!endif
>
> ####### 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"
> pstn.gw_port = "" desc "PSTN GW Port"
> #!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 = "" desc "VoiceMail IP Address"
> voicemail.srv_port = "5060" desc "VoiceMail Port"
> #!endif
>
> ####### Modules Section ########
>
> /* set paths to location of modules */
> # mpath="/usr/lib/kamailio/modules/"
>
> #!ifdef WITH_MYSQL
> loadmodule "db_mysql.so"
> #!endif
>
> loadmodule "jsonrpcs.so"
> loadmodule "kex.so"
> loadmodule "corex.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 "acc.so"
> loadmodule "counters.so"
> loadmodule "dispatcher.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"
> #!ifdef WITH_RTPENGINE
> loadmodule "rtpengine.so"
> #!else
> loadmodule "rtpproxy.so"
> #!endif
> #!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
>
> # ----------------- setting module-specific parameters ---------------
>
> #-------------------dispatcher params-------------
>
> modparam("dispatcher", "db_url", DBURL)
> modparam("dispatcher", "table_name", "dispatcher")
> modparam("dispatcher", "flags", 2)
> modparam("dispatcher", "xavp_dst", "_dsdst_")
> modparam("dispatcher", "xavp_ctx", "_dsctx_")
>
> # ----- jsonrpcs params -----
> modparam("jsonrpcs", "pretty_format", 1)
> /* set the path to RPC fifo control file */
> # modparam("jsonrpcs", "fifo_name", "/run/kamailio/kamailio_rpc.fifo")
> /* set the path to RPC unix socket control file */
> # modparam("jsonrpcs", "dgram_socket", "/run/kamailio/kamailio_rpc.sock")
>
> # ----- ctl params -----
> /* set the path to RPC unix socket control file */
> # modparam("ctl", "binrpc", "unix:/run/kamailio/kamailio_ctl")
>
> # ----- sanity params -----
> modparam("sanity", "autodrop", 0)
>
> # ----- 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 -----
> # set next param to 1 to add value to ;lr param (helps with some UAs)
> modparam("rr", "enable_full_lr", 0)
> # do not append from tag to the RR (no need for this script)
> modparam("rr", "append_fromtag", 0)
>
> # ----- 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", "db_url", DBURL)
> modparam("auth_db", "calculate_ha1", yes)
> modparam("auth_db", "password_column", "password")
> modparam("auth_db", "load_credentials", "")
> modparam("auth_db", "use_domain", MULTIDOMAIN)
>
> # ----- 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
>
> # ----- speeddial 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
> #!ifdef WITH_RTPENGINE
> # ----- rtpengine params -----
> modparam("rtpengine", "rtpengine_sock", "udp:127.0.0.1:2223")
> #!else
> # ----- rtpproxy params -----
> modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")
> #!endif
> # ----- nathelper params -----
> modparam("nathelper", "natping_interval", 30)
> modparam("nathelper", "ping_nated_only", 1)
> modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
> modparam("nathelper", "sipping_from", "sip:pinger at kamailio.org")
>
> # 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", "/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)
> modparam("debugger", "log_level_name", "exec")
> #!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);
>
> # CANCEL processing
> if (is_method("CANCEL")) {
> if (t_check_trans()) {
> route(RELAY);
> }
> exit;
> }
>
> # handle retransmissions
> if (!is_method("ACK")) {
> if(t_precheck_trans()) {
> t_check_trans();
> exit;
> }
> t_check_trans();
> }
>
> # handle requests within SIP dialogs
> route(WITHINDLG);
>
> ### only initial requests (no To tag)
>
> # 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);
>
> route(DISPATCH);
>
> # user location service
> }
>
> # Wrapper for relaying requests
> route[RELAY] {
>
> # enable additional event routes for forwarded requests
> # - serial forking, RTP relaying handling, a.s.o.
> if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) {
> if(!t_is_set("branch_route")) t_on_branch("MANAGE_BRANCH");
> }
> if (is_method("INVITE|SUBSCRIBE|UPDATE")) {
> if(!t_is_set("onreply_route")) t_on_reply("MANAGE_REPLY");
> }
> if (is_method("INVITE")) {
> if(!t_is_set("failure_route")) t_on_failure("MANAGE_FAILURE");
> }
>
> if (!t_relay()) {
> sl_reply_error();
> }
> exit;
> }
>
> Dispatch requests
>
> route[DISPATCH] {
>
> # round robin dispatching on gateways group '1'
>
> if(!ds_select_dst("1", "4")) {
>
> send_reply("404", "No destination");
>
> exit;
>
> }
>
> xdbg("--- SCRIPT: going to <$ru> via <$du> (attrs:
> $xavp(_dsdst_=>attrs))\n");
> t_on_failure("RTF_DISPATCH");
> $rcv_addr="sip:"+$si+":"+$sp;
>
> if(starts_with("$rcv_addr","$du"))
> {
> route(LOCATION);
> }
> else
> {
> route(RELAY);
> }
> exit;
>
> }
>
>
> # Try next destionations in failure route
>
> failure_route[RTF_DISPATCH] {
>
> xnotice("RTF_DISPATCH: $rm $rU [$ci]");
>
> if (t_is_canceled()) {
>
> exit;
> }
>
> # next DST - only for 500 or local timeout
>
> if (t_check_status("(^5)")
>
> or (t_branch_timeout() and !t_branch_replied())) {
> xnotice("RTF_DISPATCH: WARNING $du is broken and marked as inactive");
> # ds_mark_dst("ip");
> if(ds_next_dst()) {
> #xdbg("--- SCRIPT: retrying to <$ru> via <$du> (attrs:
> $xavp(_dsdst_=>attrs))\n");
> t_on_failure("RTF_DISPATCH");
>
> route(RELAY);
>
> exit;
>
> }
>
> }
>
> }
>
>
>
> # Per SIP request initial checks
> route[REQINIT] {
> # no connect for sending replies
> set_reply_no_connect();
>
> #!ifdef WITH_ANTIFLOOD
> # flood detection from same IP and traffic ban for a while
> # be sure you exclude checking trusted peers, such as pstn gateways
> # - local host excluded (e.g., loop to self)
> if(src_ip!=myself) {
> if($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($ua =~ "friendly-scanner|sipcli|sipvicious|VaxSIPUserAgent") {
> # silent drop for scanners - uncomment next line if want to reply
> # sl_send_reply("200", "OK");
> exit;
> }
>
> if (!mf_process_maxfwd_header("10")) {
> sl_send_reply("483","Too Many Hops");
> exit;
> }
>
> if(is_method("OPTIONS") && uri==myself && $rU==$null) {
> sl_send_reply("200","Keepalive");
> exit;
> }
>
> if(!sanity_check("17895", "7")) {
> xlog("Malformed SIP request from $si:$sp\n");
> exit;
> }
> }
>
> # Handle requests within SIP dialogs
> route[WITHINDLG] {
> if (!has_totag()) return;
>
> # sequential request withing a dialog should
> # take the path determined by record-routing
> if (loose_route()) {
> route(DLGURI);
> if (is_method("BYE")) {
> setflag(FLT_ACC); # do accounting ...
> setflag(FLT_ACCFAILED); # ... even if the transaction fails
> } else if ( is_method("ACK") ) {
> # ACK is forwarded statelessly
> route(NATMANAGE);
> } else if ( is_method("NOTIFY") ) {
> # Add Record-Route for in-dialog NOTIFY as per RFC 6665.
> record_route();
> }
> route(RELAY);
> exit;
> }
>
> 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
> route(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")) return;
>
> if(isflagset(FLT_NATS)) {
> setbflag(FLB_NATB);
> #!ifdef WITH_NATSIPPING
> # do SIP NAT pinging
> setbflag(FLB_NATSIPPING);
> #!endif
> }
> if (!save("location")) {
> sl_reply_error();
> }
> exit;
> }
>
> # User location service
> route[LOCATION] {
>
> #!ifdef WITH_SPEEDDIAL
> # 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
>
> $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);
> }
>
> route(RELAY);
> exit;
> }
>
> # Presence server processing
> route[PRESENCE] {
> if(!is_method("PUBLISH|SUBSCRIBE")) return;
>
> if(is_method("SUBSCRIBE") && $hdr(Event)=="message-summary") {
> route(TOVOICEMAIL);
> # returns here if no voicemail server is configured
> sl_send_reply("404", "No voicemail service");
> exit;
> }
>
> #!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;
> }
>
> # IP authorization and user authentication
> route[AUTH] {
> #!ifdef WITH_AUTH
>
> #!ifdef WITH_IPAUTH
> if((!is_method("REGISTER")) && allow_source_address()) {
> # source IP allowed
> return;
> }
> #!endif
>
> if (is_method("REGISTER") || from_uri==myself) {
> # authenticate requests
> if (!auth_check("$fd", "subscriber", "1")) {
> auth_challenge("$fd", "0");
> exit;
> }
> # user authenticated - remove auth header
> if(!is_method("REGISTER|PUBLISH"))
> consume_credentials();
> }
> # 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;
> }
>
> #!else
>
> # authentication not enabled - do not relay at all to foreign networks
> if(uri!=myself) {
> sl_send_reply("403","Not relaying");
> exit;
> }
>
> #!endif
> return;
> }
>
> # Caller NAT detection
> route[NATDETECT] {
> #!ifdef WITH_NAT
> force_rport();
> if (nat_uac_test("19")) {
> if (is_method("REGISTER")) {
> fix_nated_register();
> } else {
> if(is_first_hop()) {
> set_contact_alias();
> }
> }
> setflag(FLT_NATS);
> }
> #!endif
> return;
> }
>
> # RTPProxy control and signaling updates for NAT traversal
> 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;
>
> #!ifdef WITH_RTPENGINE
> if(nat_uac_test("8")) {
> rtpengine_manage("replace-origin replace-session-connection");
> } else {
> rtpengine_manage("trust-address replace-origin
> replace-session-connection");
> }
> #!else
> if(nat_uac_test("8")) {
> rtpproxy_manage("co");
> } else {
> rtpproxy_manage("cor");
> }
> #!endif
>
> if (is_request()) {
> if (!has_totag()) {
> if(t_is_branch_route()) {
> add_rr_param(";nat=yes");
> }
> }
> }
> if (is_reply()) {
> if(isbflagset(FLB_NATB)) {
> if(is_first_hop())
> set_contact_alias();
> }
> }
>
> if(isbflagset(FLB_NATB)) {
> # no connect message in a dialog involving NAT traversal
> if (is_request()) {
> if(has_totag()) {
> set_forward_no_connect();
> }
> }
> }
> #!endif
> return;
> }
>
> # URI update for dialog requests
> route[DLGURI] {
> #!ifdef WITH_NAT
> if(!isdsturiset()) {
> handle_ruri_alias();
> }
> #!endif
> return;
> }
>
> # Routing to foreign domains
> route[SIPOUT] {
> if (uri==myself) return;
>
> append_hf("P-hint: outbound\r\n");
> route(RELAY);
> exit;
> }
>
> # PSTN GW routing
> route[PSTN] {
> #!ifdef WITH_PSTN
> # check if PSTN GW IP is defined
> if (strempty($sel(cfg_get.pstn.gw_ip))) {
> xlog("SCRIPT: PSTN routing enabled but pstn.gw_ip not defined\n");
> return;
> }
>
> # route to PSTN dialed numbers starting with '+' or '00'
> # (international format)
> # - update the condition to match your dialing rules for PSTN routing
> if(!($rU=~"^(\+|00)[1-9][0-9]{3,20}$")) return;
>
> # only local users allowed to call
> if(from_uri!=myself) {
> sl_send_reply("403", "Not Allowed");
> exit;
> }
>
> # normalize target number for pstn gateway
> # - convert leading 00 to +
> if (starts_with("$rU", "00")) {
> strip(2);
> prefix("+");
> }
>
> if (strempty($sel(cfg_get.pstn.gw_port))) {
> $ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);
> } else {
> $ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip) + ":"
> + $sel(cfg_get.pstn.gw_port);
> }
>
> route(RELAY);
> exit;
> #!endif
>
> return;
> }
>
> # XMLRPC routing
> #!ifdef WITH_XMLRPC
> route[XMLRPC] {
> # allow XMLRPC from localhost
> if ((method=="POST" || method=="GET")
> && (src_ip==127.0.0.1)) {
> # close connection only for xmlrpclib user agents (there is a bug in
> # xmlrpclib: it waits for EOF before interpreting the response).
> if ($hdr(User-Agent) =~ "xmlrpclib")
> set_reply_close();
> set_reply_no_connect();
> dispatch_rpc();
> exit;
> }
> send_reply("403", "Forbidden");
> exit;
> }
> #!endif
>
> # Routing to voicemail server
> route[TOVOICEMAIL] {
> #!ifdef WITH_VOICEMAIL
> if(!is_method("INVITE|SUBSCRIBE")) return;
>
> # check if VoiceMail server IP is defined
> if (strempty($sel(cfg_get.voicemail.srv_ip))) {
> xlog("SCRIPT: VoiceMail routing enabled but IP not defined\n");
> return;
> }
> if(is_method("INVITE")) {
> if($avp(oexten)==$null) return;
>
> $ru = "sip:" + $avp(oexten) + "@" + $sel(cfg_get.voicemail.srv_ip)
> + ":" + $sel(cfg_get.voicemail.srv_port);
> } else {
> if($rU==$null) return;
>
> $ru = "sip:" + $rU + "@" + $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
> reply_route {
> if(!sanity_check("17604", "6")) {
> xlog("Malformed SIP response from $si:$sp\n");
> drop;
> }
> }
>
> # Manage incoming replies in transaction context
> 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_BLOCK401407
> # block call redirect based on 401, 407 replies.
> if (t_check_status("401|407")) {
> 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")) {
> $du = $null;
> route(TOVOICEMAIL);
> exit;
> }
> #!endif
> }
>
>
>
>
> --
>
>
>
>
>
>
>
>
> *Regards:*
> Gaurav Kumar
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
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