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193 lines
7.1 KiB
193 lines
7.1 KiB
######## Generic Hash Table container in shared memory ########
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modparam("htable", "htable", "auth_cache=>size=16;autoexpire=7200")
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modparam("htable", "htable", "failed_auth_hash=>size=14;autoexpire=180;")
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####### Authentication Interface module ##########
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loadmodule "auth.so"
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####### User Location Implementation module ##########
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loadmodule "usrloc.so"
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modparam("usrloc", "db_mode", 0)
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modparam("usrloc", "db_update_as_insert", 1)
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modparam("usrloc", "use_domain", 1)
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modparam("usrloc", "nat_bflag", FLB_NATB)
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######## NAT Traversal module - signaling functions ########
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#!ifdef NAT-TRAVERSAL-ROLE
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#!trydef NATHELPER-LOADED
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loadmodule "nathelper.so"
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modparam("nathelper", "natping_interval", 30)
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modparam("nathelper", "ping_nated_only", 1)
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modparam("nathelper", "natping_processes", 5)
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modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
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#!endif
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####### SIP Registrar implementation module ##########
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loadmodule "registrar.so"
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modparam("registrar", "received_avp", "$avp(AVP_RECV_PARAM)")
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modparam("registrar", "min_expires", 300)
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modparam("registrar", "max_expires", 3600)
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####### Registrar Logic ########
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route[HANDLE_REGISTER]
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{
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if (is_method("REGISTER")) {
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#!ifdef TRAFFIC-FILTER-ROLE
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route(DOMAIN_FORMAT_CHECK);
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#!endif
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#!ifdef NAT-TRAVERSAL-ROLE
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if (nat_uac_test("3")) {
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xlog("L_INFO", "$ci|log|correcting NATed contact in registration");
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force_rport();
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fix_nated_register();
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}
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## KAZOO-1846: Cisco SPA8000 freaks out on options pings
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if (!($ua =~ "Linksys/SPA8000")) {
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setbflag(FLB_NATB);
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setbflag(FLB_NATSIPPING);
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}
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#!endif
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if (is_present_hf("Authorization")) {
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#!ifdef TRAFFIC-FILTER-ROLE
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if (!route(PREVENT_BRUTEFORCE)) {
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auth_challenge("$fd", "0");
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exit;
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}
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#!endif
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if ($sht(auth_cache=>$Au) != $null && pv_auth_check("$fd", "$sht(auth_cache=>$Au)", "0", "0")) {
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xlog("L_INFO", "$ci|log|authenticated $Au via cached SIP creds");
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} else {
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## RABBITMQ - Credentials fetch
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$var(amqp_payload_request) = "{'Event-Category' : 'directory' , 'Event-Name' : 'authn_req', 'Method' : 'REGISTER', 'Auth-Realm' : '" + $fd + "', 'Auth-User' : '" + $fU + "', 'From' : '" + $fu + "', 'To' : '" + $tu +"' }";
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$var(amqp_routing_key) = "authn.req." + $(fd{kz.encode});
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if(kazoo_query("callmgr", $var(amqp_routing_key), $var(amqp_payload_request))) {
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$var(password) = $(kzR{kz.json,Auth-Password});
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if($var(password) != $null) {
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if (!pv_auth_check("$fd", "$var(password)", "0", "0")) {
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#!ifdef TRAFFIC-FILTER-ROLE
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route(FAILED_AUTH_COUNT);
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#!endif
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auth_challenge("$fd", "0");
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xlog("L_INFO", "$ci|end|failed registration attempt from $si:$sp for $Au");
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exit;
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} else {
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xlog("L_DBG", "$ci|log|caching SIP credentials for $Au");
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$sht(auth_cache=>$Au) = $var(password);
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}
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} else {
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auth_challenge("$fd", "0");
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xlog("L_INFO", "$ci|log|error getting password from kazoo response");
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exit;
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}
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} else {
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auth_challenge("$fd", "0");
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xlog("L_INFO", "$ci|log|error query kazoo for credentials");
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exit;
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}
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}
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} else {
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auth_challenge("$fd", "0");
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xlog("L_INFO", "$ci|end|issued new auth challenge to registration attempt from $Au $si:$sp");
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exit;
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}
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# user authenticated - remove auth header
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consume_credentials();
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save("location");
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$var(expires) = @contact.expires;
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if($var(expires) == $null) {
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$var(expires) = $hdr(Expires);
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}
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if($var(expires) == $null) {
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$var(expires) = 190;
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}
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$var(params) = "fs_path=<sip:MY_IP_ADDRESS:5060;lr;received='" + $rz + ":" + $si + ":" + $sp + ";transport=" + $proto + "'>";
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if($(ct{tobody.params}) != $null) {
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$var(params) = $(ct{tobody.params}{s.escape.common}) + ";" + $var(params);
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}
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if ($avp(AVP_RECV_PARAM) == $null) {
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$var(fs_contact) = "<" + $(ct{tobody.uri}) + ";" + $var(params) + ">";
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} else {
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$var(fs_contact) = "<sip:" + $(ct{tobody.user}) + "@" + $si + ":" + $sp + ";transport=" + $proto + ";" + $var(params) + ">";
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}
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xlog("L_INFO", "$ci|end|successful registration with contact $var(fs_contact)");
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$var(register_contants) = ' "Presence-Hosts" : "n/a", "Profile-Name" : "sipinterface_1", "Status" : "Registered", "Event-Timestamp" : "' + $TS + '"';
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if($var(expires) != $null) {
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$var(register_contants) = $var(register_contants) + ', "Expires" : ' + $var(expires);
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}
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$var(amqp_payload_request) = '{"Event-Category" : "directory", "Event-Name" : "reg_success", "Contact" : "' + $var(fs_contact) + '", "Call-ID" : "' + $ci + '", "Realm" : "' + $fd + '", "Username" : "' + $fU + '", "From-User" : "' + $fU + '", "From-Host" : "' + $fd + '", "To-User" : "' + $tU + '", "To-Host" : "' + $td + '", "User-Agent" : "' + $ua + '" ,' + $var(register_contants) + ' }';
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$var(amqp_routing_key) = "registration.success." + $(fd{kz.encode}) + "." + $fU;
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kazoo_publish("callmgr", $var(amqp_routing_key), $var(amqp_payload_request));
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exit;
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}
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}
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# AUTH: check to see if user if present in failed_auth_hash
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route[PREVENT_BRUTEFORCE]
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{
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if (isflagset(FLAG_TRUSTED_SOURCE)) {
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return(1);
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}
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if($sht(failed_auth_hash=>$Au::count) >= 2) {
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$var(exp) = $Ts - 120;
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if($sht(failed_auth_hash=>$Au::last) > $var(exp)){
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xlog("L_WARN", "$ci|log|possible password brute force, from $ct on user $Au");
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return(-1);
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} else {
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$sht(failed_auth_hash=>$Au::count) = 0;
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}
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}
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return(1);
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}
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#AUTH: add to failed_auth_hash in case of authentication password error
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route[FAILED_AUTH_COUNT]
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{
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if (isflagset(FLAG_TRUSTED_SOURCE)) {
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return;
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}
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if ($rc == -2) {
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if($sht(failed_auth_hash=>$Au::count) == $null) {
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$sht(failed_auth_hash=>$Au::count) = 0;
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}
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$sht(failed_auth_hash=>$Au::count) = $sht(failed_auth_hash=>$Au::count) + 1;
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$sht(failed_auth_hash=>$Au::last) = $Ts;
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}
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}
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route[DOMAIN_FORMAT_CHECK]
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{
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if (isflagset(FLAG_TRUSTED_SOURCE)) {
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return;
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}
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if ($rd =~ "([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})" ||
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$td =~ "([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})" ) {
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xlog("L_WARN", "$ci|end|denying request with IP domain in From or To header");
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send_reply("403", "Forbidden");
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exit;
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}
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}
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# vim: tabstop=4 softtabstop=4 shiftwidth=4 expandtab
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