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348 lines
8.7 KiB
348 lines
8.7 KiB
#!KAMAILIO
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#
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# Kamailio SIP Server v5.2 - default configuration script
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# - web: https://www.kamailio.org
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# - git: https://github.com/kamailio/kamailio
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#
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# Direct your questions about this file to: <sr-users@lists.kamailio.org>
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#
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# Refer to the Core CookBook at https://www.kamailio.org/wikidocs/
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# for an explanation of possible statements, functions and parameters.
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#
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####### Defined Values #########
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# the specific address for this node
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#!define IPADDR_THISNODE "192.168.178.75"
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#!subst "/IPADDR_THISNODE/192.168.178.75/"
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# the specific address of the pair node in the anycast deployment
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#!define IPADDR_PAIRNODE "192.168.178.74"
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#!subst "/IPADDR_PAIRNODE/192.168.178.74/"
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# the anycast address
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#!define IPADDR_ANYCAST "192.168.178.80"
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#!subst "/IPADDR_ANYCAST/192.168.178.80/"
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# the address of the main sip server where to route requests to
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# [UA1] <===> [ANYCASTNODE] <===> [MAINSRV] <===> [ANYCASTNODE] <===> [UA2]
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#!define IPADDR_MAINSRV "192.168.178.40"
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#!subst "/IPADDR_MAINSRV/192.168.178.40/"
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#!define MULTIDOMAIN 0
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# - flags
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# FLT_ - per transaction (message) flags
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# FLB_ - per branch flags
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#!define FLT_ACC 1
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#!define FLT_ACCMISSED 2
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#!define FLT_ACCFAILED 3
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#!define FLT_NATS 5
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#!define FLB_NATB 6
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#!define FLB_NATSIPPING 7
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####### Global Parameters #########
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### LOG Levels: 3=DBG, 2=INFO, 1=NOTICE, 0=WARN, -1=ERR
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#!ifdef WITH_DEBUG
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debug=4
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log_stderror=yes
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#!else
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debug=2
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log_stderror=no
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#!endif
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memdbg=5
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memlog=5
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log_facility=LOG_LOCAL0
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log_prefix="{$mt $hdr(CSeq) $ci} "
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/* number of SIP routing processes */
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children=8
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server_id = 10
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xavp_via_params = "via"
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/* uncomment the next line to disable TCP (default on) */
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# disable_tcp=yes
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/* uncomment the next line to disable the auto discovery of local aliases
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* based on reverse DNS on IPs (default on) */
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# auto_aliases=no
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/* add local domain aliases */
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# alias="sip.mydomain.com"
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/* listen on local and anycast addresses */
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listen=udp:IPADDR_THISNODE:5060
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# listen=udp:IPADDR_ANYCAST:5060
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####### Custom Parameters #########
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/* These parameters can be modified at runtime via RPC interface
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* - see the documentation of 'cfg_rpc' module.
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*
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* Format: group.id = value 'desc' description
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* Access: $sel(cfg_get.group.id) or @cfg_get.group.id */
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####### Modules Section ########
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/* set paths to location of modules */
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loadmodule "jsonrpcs.so"
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loadmodule "kex.so"
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loadmodule "corex.so"
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loadmodule "tm.so"
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loadmodule "tmx.so"
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loadmodule "sl.so"
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loadmodule "rr.so"
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loadmodule "pv.so"
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loadmodule "maxfwd.so"
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loadmodule "textops.so"
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loadmodule "siputils.so"
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loadmodule "xlog.so"
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loadmodule "sanity.so"
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loadmodule "ctl.so"
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loadmodule "cfg_rpc.so"
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loadmodule "acc.so"
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loadmodule "counters.so"
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# ----------------- setting module-specific parameters ---------------
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# ----- jsonrpcs params -----
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modparam("jsonrpcs", "pretty_format", 1)
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/* set the path to RPC fifo control file */
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# modparam("jsonrpcs", "fifo_name", "/run/kamailio/kamailio_rpc.fifo")
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/* set the path to RPC unix socket control file */
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# modparam("jsonrpcs", "dgram_socket", "/run/kamailio/kamailio_rpc.sock")
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# ----- ctl params -----
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/* set the path to RPC unix socket control file */
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# modparam("ctl", "binrpc", "unix:/run/kamailio/kamailio_ctl")
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# ----- tm params -----
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# auto-discard branches from previous serial forking leg
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modparam("tm", "failure_reply_mode", 3)
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# default retransmission timeout: 30sec
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modparam("tm", "fr_timer", 30000)
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# default invite retransmission timeout after 1xx: 120sec
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modparam("tm", "fr_inv_timer", 120000)
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# ----- rr params -----
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# set next param to 1 to add value to ;lr param (helps with some UAs)
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modparam("rr", "enable_full_lr", 0)
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# do not append from tag to the RR (no need for this script)
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modparam("rr", "append_fromtag", 0)
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# ----- acc params -----
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/* what special events should be accounted ? */
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modparam("acc", "early_media", 0)
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modparam("acc", "report_ack", 0)
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modparam("acc", "report_cancels", 0)
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/* by default we do not adjust the direct of the sequential requests.
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* if you enable this parameter, be sure the enable "append_fromtag"
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* in "rr" module */
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modparam("acc", "detect_direction", 0)
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/* account triggers (flags) */
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modparam("acc", "log_flag", FLT_ACC)
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modparam("acc", "log_missed_flag", FLT_ACCMISSED)
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modparam("acc", "log_extra",
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"src_user=$fU;src_domain=$fd;src_ip=$si;"
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"dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")
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modparam("acc", "failed_transaction_flag", FLT_ACCFAILED)
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####### Routing Logic ########
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/* Main SIP request routing logic
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* - processing of any incoming SIP request starts with this route
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* - note: this is the same as route { ... } */
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request_route {
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# per request initial checks
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route(REQINIT);
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# CANCEL processing
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if (is_method("CANCEL")) {
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if (t_check_trans()) {
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route(RELAY);
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}
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exit;
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}
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# handle retransmissions
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if (!is_method("ACK")) {
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if(t_precheck_trans()) {
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t_check_trans();
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exit;
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}
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t_check_trans();
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}
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# handle requests within SIP dialogs
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route(WITHINDLG);
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### only initial requests (no To tag)
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# record routing for dialog forming requests (in case they are routed)
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# - remove preloaded route headers
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remove_hf("Route");
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if (is_method("INVITE|SUBSCRIBE")) {
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record_route();
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}
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# account only INVITEs
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if (is_method("INVITE")) {
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setflag(FLT_ACC); # do accounting
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}
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if ($rU==$null) {
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# request with no Username in RURI
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sl_send_reply("484", "Address Incomplete");
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exit;
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}
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if($si != IPADDR_MAINSRV) {
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# received from client - send to main sip server
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$du = "sip:" + IPADDR_MAINSRV;
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route(RELAY);
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exit;
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}
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# received from main server - send to client
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# add via tokens for anycast handling
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via_add_srvid("1");
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$xavp(via=>node) = IPADDR_THISNODE;
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via_add_xavp_params("1");
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route(RELAY);
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exit;
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}
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# Wrapper for relaying requests
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route[RELAY] {
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# enable additional event routes for forwarded requests
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# - serial forking, RTP relaying handling, a.s.o.
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if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) {
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if(!t_is_set("branch_route")) t_on_branch("MANAGE_BRANCH");
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}
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if (is_method("INVITE|SUBSCRIBE|UPDATE")) {
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if(!t_is_set("onreply_route")) t_on_reply("MANAGE_REPLY");
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}
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if (is_method("INVITE")) {
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if(!t_is_set("failure_route")) t_on_failure("MANAGE_FAILURE");
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}
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if (!t_relay()) {
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sl_reply_error();
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}
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exit;
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}
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# Per SIP request initial checks
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route[REQINIT] {
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if($ua =~ "friendly-scanner|sipcli|VaxSIPUserAgent") {
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# silent drop for scanners - uncomment next line if want to reply
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# sl_send_reply("200", "OK");
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exit;
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}
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if (!mf_process_maxfwd_header("10")) {
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sl_send_reply("483", "Too Many Hops");
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exit;
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}
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if(is_method("OPTIONS") && uri==myself && $rU==$null) {
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sl_send_reply("200", "Keepalive");
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exit;
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}
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if(!sanity_check("1511", "7")) {
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xlog("Malformed SIP message from $si:$sp\n");
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exit;
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}
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}
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# Handle requests within SIP dialogs
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route[WITHINDLG] {
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if (!has_totag()) return;
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# sequential request within a dialog should
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# take the path determined by record-routing
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if (loose_route()) {
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if (is_method("BYE")) {
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setflag(FLT_ACC); # do accounting ...
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setflag(FLT_ACCFAILED); # ... even if the transaction fails
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} else if ( is_method("NOTIFY") ) {
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# Add Record-Route for in-dialog NOTIFY as per RFC 6665.
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record_route();
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}
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route(RELAY);
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exit;
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}
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if ( is_method("ACK") ) {
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if ( t_check_trans() ) {
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# no loose-route, but stateful ACK;
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# must be an ACK after a 487
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# or e.g. 404 from upstream server
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route(RELAY);
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exit;
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} else {
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# ACK without matching transaction ... ignore and discard
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exit;
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}
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}
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sl_send_reply("404", "Not here");
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exit;
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}
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# TM manage for outgoing branches
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branch_route[MANAGE_BRANCH] {
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xdbg("new branch [$T_branch_idx] to $ru\n");
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}
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# TM manage for incoming replies
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onreply_route[MANAGE_REPLY] {
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xdbg("incoming reply\n");
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}
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# TM manage for failure routing cases
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failure_route[MANAGE_FAILURE] {
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if (t_is_canceled()) exit;
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}
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# Core handling for incoming replies
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reply_route {
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if($si != IPADDR_MAINSRV) {
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if($si == IPADDR_PAIRNODE) {
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# receiving a transparent proxied request from pair server
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if(is_present_hf("X-Src-Addr")) {
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# set the original source IP address
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xinfo("setting source address: $hdr(X-Src-Addr)\n");
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set_source_address("$hdr(X-Src-Addr)");
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remove_hf("X-Src-Addr");
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}
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# switch received socket to anycast address
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set_recv_socket("udp:IPADDR_ANYCAST:5060");
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} else {
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# receiving response from client
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# response belongs to a transaction?
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# - yes: route it, request was handled here
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# - no: send to pair server
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if(!t_check_trans()) {
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append_hf("X-Src-Addr: $su\r\n");
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# $var(vd) = $(hdr(Via){s.select, ,-1}{param.value,node});
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$var(vd) = $sel(via.params["node"]);
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xinfo("via param domain: $var(vd)\n");
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sendx("sip:$var(vd)", "udp:IPADDR_THISNODE:5060", "$mbu");
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drop();
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}
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}
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}
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# from now on, the usual sip response processing
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}
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