So, an update...
I had captured a few packets with sngrep....
I then changed the IP address of the DNS records... In the first capture below, the DNS resolves to the IP address of the FreeSWITCH server and all is good.
I then changed the IP address of the DNS records again... In the second capture below, the DNS resolves to the IP address of the Kamailio server and BLFs fail....
The NOTIFY from Kamailio does not have the XML payload...AND, the contact does not have the username part (301 in this case)
THIS NOTIFY WORKS ------------------- 2021/09/30 20:59:29.433220 FREESWITCH_IP:PORT -> the.phone.ip.address:43368 NOTIFY sip:305@10.0.0.10:43368 SIP/2.0 Via: SIP/2.0/UDP FREESWITCH_IP:PORT;rport;branch=z9hG4bKXyXm7SvDt6caB Route: sip:the.phone.ip.address:43368;transport=udp Max-Forwards: 70 From: sip:301@DOMAIN.net:PORT;tag=GK4Tfhtm1Lxb To: sip:305@DOMAIN.net:PORT;tag=364451462 Call-ID: 1032455482-43368-6@BA.CEG.HG.GC CSeq: 1178818451 NOTIFY Contact: sip:301@FREESWITCH_IP:PORT User-Agent: FreeSWITCH-mod_sofia/1.10.6-release+git~20210325T131609Z~1ff9d0a60e~64bit Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE Supported: timer, path, replaces Event: dialog Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer Subscription-State: active;expires=60 Content-Type: application/dialog-info+xml Content-Length: 168
<?xml version="1.0"?> <dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="310" state="full" entity="sip:301@DOMAIN.net"> </dialog-info>
-------------------
THIS NOTIFY DOES NOT WORK ------------------- 2021/09/30 19:08:44.798682 KAMAILIO_IP:PORT -> the.phone.ip.address:45752 NOTIFY sip:305@10.0.0.10:45752 SIP/2.0 Via: SIP/2.0/UDP KAMAILIO_IP:PORT;branch=z9hG4bK5042.f8943dd4000000000000000000000000.0 To: sip:305@DOMAIN.net;tag=171346255 From: sip:301@DOMAIN.net;tag=5e1ee053cf7168b9d3ee9c05740f837c-d60bd478 CSeq: 2 NOTIFY Call-ID: 489946038-45752-6@BA.CEG.HG.GC Content-Length: 0 User-Agent: kamailio (5.4.4 (x86_64/linux)) Max-Forwards: 70 Event: dialog Contact: sip:KAMAILIO_IP:PORT Subscription-State: active;expires=60
-------------------
So, any ideas?????
On 2021-09-30 1:44 p.m., Jerry Kendall wrote:
So, a little change in status here:
The phones are setup to register as ext@domain.com
Kamailio has users defined as ext@domain.com
The users are registered AND can call each other without issues
I have a GXP2170 reg'd as 301@domain with BLF for 305@domain
I have a GXP1782 reg'd as 305@domain with BLF for 301@domain
I am running sngrep and see LOTS of SUBCRIBE from both phones with the following...
========================
SUBSCRIBE sip:301@test.example.com:port SIP/2.0 Via: SIP/2.0/UDP 10.0.0.62:53748;branch=z9hG4bK1748153224;rport From: sip:305@test.example.com:port;tag=1412038754 To: sip:301@test.example.com:port Call-ID: 1965507655-53748-9@BA.CEG.HG.GC CSeq: 20150 SUBSCRIBE Contact: sip:305@10.0.0.62:53748 X-Grandstream-PBX: true Max-Forwards: 70 User-Agent: Grandstream GXP1782 1.0.1.116 Expires: 60 Supported: replaces, path, timer, eventlist Event: dialog Accept: application/dialog-info+xml,multipart/related,application/rlmi+xml Accept-Encoding: zlib+base64 Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE Content-Length: 0
SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 10.0.0.62:53748;branch=z9hG4bK1748153224;rport=53748;received=184.148.140.29 From: sip:305@test.example.com:port;tag=1412038754 To: sip:301@test.example.com:port;tag=c814f383b05cbe6e319f0457961f79e4.13649c3f Call-ID: 1965507655-53748-9@BA.CEG.HG.GC CSeq: 20150 SUBSCRIBE Proxy-Authenticate: Digest realm="test.example.com", nonce="YVX2EmFV9OaLlg1aA240dgWcVgPq277p" Server: kamailio (5.4.4 (x86_64/linux)) Content-Length: 0
SUBSCRIBE sip:301@test.example.com:port SIP/2.0 Via: SIP/2.0/UDP 10.0.0.62:53748;branch=z9hG4bK1844436054;rport From: sip:305@test.example.com:port;tag=1412038754 To: sip:301@test.example.com:port Call-ID: 1965507655-53748-9@BA.CEG.HG.GC CSeq: 20151 SUBSCRIBE Contact: sip:305@10.0.0.62:53748 Proxy-Authorization: Digest username="305", realm="test.example.com", nonce="YVX2EmFV9OaLlg1aA240dgWcVgPq277p", uri="sip:301@test.example.com:port", response="177 b262785786c4b7c3aa68adf4246", algorithm=MD5 X-Grandstream-PBX: true Max-Forwards: 70 User-Agent: Grandstream GXP1782 1.0.1.116 Expires: 60 Supported: replaces, path, timer, eventlist Event: dialog Accept: application/dialog-info+xml,multipart/related,application/rlmi+xml Accept-Encoding: zlib+base64 Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE Content-Length: 0
SIP/2.0 202 OK Via: SIP/2.0/UDP 10.0.0.62:53748;branch=z9hG4bK1844436054;rport=53748;received=184.148.140.29 From: sip:305@test.example.com:port;tag=1412038754 To: sip:301@test.example.com:port;tag=5e1ee053cf7168b9d3ee9c05740f837c-13649c3f Call-ID: 1965507655-53748-9@BA.CEG.HG.GC CSeq: 20151 SUBSCRIBE Expires: 60 Contact: sip:a.b.c.d:port;transport=udp Server: kamailio (5.4.4 (x86_64/linux)) Content-Length: 0
NOTIFY sip:305@10.0.0.62:53748 SIP/2.0 Via: SIP/2.0/UDP a.b.c.d:port;branch=z9hG4bKd05f.da500673000000000000000000000000.0 To: sip:305@test.example.com;tag=190302571 From: sip:301@test.example.com;tag=5e1ee053cf7168b9d3ee9c05740f837c-13649c3f CSeq: 2 NOTIFY Call-ID: 1965507655-53748-9@BA.CEG.HG.GC Content-Length: 0 User-Agent: kamailio (5.4.4 (x86_64/linux)) Max-Forwards: 70 Event: dialog Contact: sip:a.b.c.d:port;transport=udp Subscription-State: terminated;reason=timeout
SIP/2.0 481 Subscription Does Not Exist Via: SIP/2.0/UDP a.b.c.d:port;branch=z9hG4bKd05f.da500673000000000000000000000000.0 From: sip:301@test.example.com;tag=5e1ee053cf7168b9d3ee9c05740f837c-13649c3f To: sip:305@test.example.com;tag=190302571 Call-ID: 1965507655-53748-9@BA.CEG.HG.GC CSeq: 2 NOTIFY Supported: replaces, path, timer User-Agent: Grandstream GXP1782 1.0.1.116 Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE Content-Length: 0
========================
On 2021-09-30 11:56 a.m., Jerry Kendall wrote:
Does anyone have some idea of what to look at ?
Jerry
On 9/29/2021 1:46 AM, Jerry Kendall wrote:
Forgot to add:
debian 11
Kamailio 5.4.4
Phones ARE behind NAT
Jerry
On 2021-09-29 1:35 a.m., Jerry Kendall wrote:
Hi there...
Trying to get the BLFs working... Not much luck
Registration works and device to device calls work but the BLFs dont....
Does anyone have a basic config where the BLFs work and calls work that I can try?
If not, can someone point me in the right direction?
I get LOTS of these types of NOTIFYs but never one with a body...
NOTIFY sip:305@10..10.10.223:34571 SIP/2.0 Via: SIP/2.0/UDP a.b.c.d:port;branch=z9hG4bKeb43.45649b07000000000000000000000000.0 To: sip:305@domain.net;tag=697604941 From: sip:301@domain.net;tag=5e1ee053cf7168b9d3ee9c05740f837c-998270a1 CSeq: 2 NOTIFY Call-ID: 1023132872-34571-5@BA.CEG.HG.GC Content-Length: 0 User-Agent: kamailio (5.4.4 (x86_64/linux)) Max-Forwards: 70 Event: dialog Contact: sip:a.b.c.d:port Subscription-State: terminated;reason=timeout
Below, this is my config taken from https://kb.asipto.com/kamailio:presence:k43-blf
============================
#!KAMAILIO
#!define WITH_MYSQL #!define WITH_AUTH #!define WITH_NAT #!define WITH_NATSIPPING #!define WITH_USRLOCDB #!define WITH_PRESENCE #!define WITH_MULTIDOMAIN
# # Kamailio (OpenSER) SIP Server v4.3 - default configuration script # - web: http://www.kamailio.org # - git: http://sip-router.org # # Direct your questions about this file to: sr-users@lists.sip-router.org # # Refer to the Core CookBook at http://www.kamailio.org/wiki/ # 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 # - option for NAT SIP OPTIONS keepalives: WITH_NATSIPPING # # *** 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
####### 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 #!trydef DBURL "mysql://user:passwd@127.0.0.1/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 FLT_DLG 9 #!define FLT_DLGINFO 10
#!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
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:a.b.c.d:port
/* port to listen to * - can be specified more than once if needed to listen on many ports */ port=8081
#!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
####### 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/x86_64-linux-gnu/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"
#!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" loadmodule "presence_dialoginfo.so" loadmodule "pua.so" loadmodule "pua_dialoginfo.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
loadmodule "dialog.so"
# ----------------- setting module-specific parameters ---------------
# ----- 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) modparam("presence", "server_address", "sip:a.b.c.d:port" ) modparam("presence", "send_fast_notify", 0) modparam("presence", "db_update_period", 20) modparam("presence", "clean_period", 40) modparam("presence", "subs_db_mode", 2) modparam("presence", "fetch_rows", 1000)
# ----- presence_xml params ----- modparam("presence_xml", "db_url", DBURL) modparam("presence_xml", "force_active", 1)
# ----- presence_dialoginfo params ----- modparam("presence_dialoginfo", "force_single_dialog", 0)
# ----- pua params ----- modparam("pua", "db_url", DBURL) modparam("pua", "db_mode", 2) modparam("pua", "update_period", 60) modparam("pua", "dlginfo_increase_version", 0) modparam("pua", "reginfo_increase_version", 0) modparam("pua", "check_remote_contact", 1) modparam("pua", "fetch_rows", 1000)
# ----- pua_dialoginfo params ----- modparam("pua_dialoginfo", "include_callid", 1) modparam("pua_dialoginfo", "send_publish_flag", FLT_DLGINFO) modparam("pua_dialoginfo", "caller_confirmed", 0) modparam("pua_dialoginfo", "include_tags", 1) modparam("pua_dialoginfo", "override_lifetime", 124)
#!endif
# ----- dialog params ----- modparam("dialog", "db_url", DBURL) modparam("dialog", "enable_stats", 1) modparam("dialog", "db_mode", 1) modparam("dialog", "dlg_flag", FLT_DLG)
#!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:pinger@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", "/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) 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 requests within SIP dialogs route(WITHINDLG);
### only initial requests (no To tag)
# handle retransmissions if(t_precheck_trans()) { t_check_trans(); 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); }
# 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(is_method("INVITE|BYE|UPDATE|CANCEL|ACK")) { setflag(FLT_DLGINFO); dlg_manage(); }
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; } } if($ua =~ "friendly-scanner") { sl_send_reply("200", "OK"); exit; } #!endif
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("1511", "7")) { xlog("Malformed SIP message 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 statelessy 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 uthentication 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; }
#!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 singaling 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;
rtpproxy_manage("co");
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(); } } #!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($sel(cfg_get.pstn.gw_ip))) { xlog("SCRIPT: PSTN rotuing enabled but pstn.gw_ip not defined\n"); return; }
# route to PSTN dialed numbers starting with '+' or '00' # (international format) # - update the condition to match your dialing rules for PSTN routing if(!($rU=~"^(+|00)[1-9][0-9]{3,20}$")) return;
# only local users allowed to call if(from_uri!=myself) { sl_send_reply("403", "Not Allowed"); exit; }
if (strempty($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($sel(cfg_get.voicemail.srv_ip))) { xlog("SCRIPT: VoiceMail rotuing enabled but IP not defined\n"); return; } if(is_method("INVITE")) { if($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 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")) { $du = $null; route(TOVOICEMAIL); exit; } #!endif }
======================
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Kamailio - Users Mailing List - Non Commercial Discussions * sr-users@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio - Users Mailing List - Non Commercial Discussions * sr-users@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users