-
-
Save KevinAtLeap/e2e93654511cc63489dc37d48a9eeea6 to your computer and use it in GitHub Desktop.
Kamailio SIP proxy for freeswitch with RTPEngine for RTP traffic (Kamailio+SIP+RTP+Freeswitch)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!KAMAILIO | |
| # | |
| # Kamailio (OpenSER) SIP Server v5.2 - default configuration script | |
| # - web: https://www.kamailio.org | |
| # - git: https://github.com/kamailio/kamailio | |
| # | |
| # Direct your questions about this file to: <[email protected]> | |
| # | |
| # Refer to the Core CookBook at https://www.kamailio.org/wiki/ | |
| # for an explanation of possible statements, functions and parameters. | |
| # | |
| ####### Defined Values ######### | |
| #!define MULTIDOMAIN 0 | |
| # - 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 | |
| debug=2 | |
| log_stderror=no | |
| memdbg=5 | |
| memlog=5 | |
| log_facility=LOG_LOCAL0 | |
| log_prefix="{$mt $hdr(CSeq) $ci} " | |
| /* number of SIP routing processes */ | |
| children=2 | |
| /* 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" | |
| /* listen addresses */ | |
| # listen=udp:127.0.0.1:5060 | |
| ####### 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 */ | |
| ####### Modules Section ######## | |
| /* set paths to location of modules */ | |
| 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 "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 "path.so" | |
| loadmodule "rtpengine.so" | |
| # ----------------- setting module-specific parameters --------------- | |
| # ----- jsonrpcs params ----- | |
| modparam("jsonrpcs", "pretty_format", 1) | |
| /* set the path to RPC fifo control file */ | |
| # modparam("jsonrpcs", "fifo_name", "/var/run/kamailio/kamailio_rpc.fifo") | |
| /* set the path to RPC unix socket control file */ | |
| # modparam("jsonrpcs", "dgram_socket", "/var/run/kamailio/kamailio_rpc.sock") | |
| # ----- ctl params ----- | |
| /* set the path to RPC unix socket control file */ | |
| # modparam("ctl", "binrpc", "unix:/var/run/kamailio/kamailio_ctl") | |
| # ----- 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", 1) | |
| # do not append from tag to the RR (no need for this script) | |
| modparam("rr", "append_fromtag", 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) | |
| modparam("rtpengine", "rtpengine_sock", "udp:localhost:2223") | |
| ####### 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 { | |
| # RTP route | |
| if (is_method("INVITE")) { | |
| if (has_body("application/sdp")) { | |
| if (rtpengine_offer()) | |
| t_on_reply("1"); | |
| } else { | |
| t_on_reply("2"); | |
| } | |
| } | |
| if (is_method("ACK") && has_body("application/sdp")) { | |
| rtpengine_answer(); | |
| } | |
| # per request initial checks | |
| route(REQINIT); | |
| # 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) | |
| # 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 | |
| } | |
| # Add path for REGISTER | |
| if ((is_method("REGISTER"))) { | |
| add_path(); | |
| } | |
| # update $du to set the destination address for proxying | |
| $du = "sip:" + $rd + ":5060"; | |
| route(RELAY); | |
| exit; | |
| } | |
| onreply_route[1] | |
| { | |
| if (has_body("application/sdp")) | |
| rtpengine_answer(); | |
| } | |
| onreply_route[2] | |
| { | |
| if (has_body("application/sdp")) | |
| rtpengine_offer(); | |
| } | |
| # Wrapper for relaying requests | |
| route[RELAY] { | |
| # enable additional event routes for forwarded requests | |
| # - serial forking, RTP relaying handling, a.s.o. | |
| if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) { | |
| if(!t_is_set("branch_route")) t_on_branch("MANAGE_BRANCH"); | |
| } | |
| if (is_method("INVITE|SUBSCRIBE|UPDATE")) { | |
| if(!t_is_set("onreply_route")) t_on_reply("MANAGE_REPLY"); | |
| } | |
| if (is_method("INVITE")) { | |
| if(!t_is_set("failure_route")) t_on_failure("MANAGE_FAILURE"); | |
| } | |
| if (!t_relay()) { | |
| sl_reply_error(); | |
| } | |
| exit; | |
| } | |
| # Per SIP request initial checks | |
| route[REQINIT] { | |
| if($ua =~ "friendly-scanner|sipcli|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("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()) { | |
| if (is_method("BYE")) { | |
| setflag(FLT_ACC); # do accounting ... | |
| setflag(FLT_ACCFAILED); # ... even if the transaction fails | |
| } else if ( is_method("NOTIFY") ) { | |
| # Add Record-Route for in-dialog NOTIFY as per RFC 6665. | |
| record_route(); | |
| } | |
| route(RELAY); | |
| 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; | |
| } | |
| # Manage outgoing branches | |
| branch_route[MANAGE_BRANCH] { | |
| xdbg("new branch [$T_branch_idx] to $ru\n"); | |
| } | |
| # Manage incoming replies | |
| onreply_route[MANAGE_REPLY] { | |
| xdbg("incoming reply\n"); | |
| } | |
| # Manage failure routing cases | |
| failure_route[MANAGE_FAILURE] { | |
| if (t_is_canceled()) exit; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
invite packets sent from freeswitch are sent back to the switch