git:master:7f9547ae: misc/examples/kemi: native config upated - sr-dev

7 Dec 2022

Module: kamailio
Branch: master
Commit: 7f9547ae2b5a5848f693544124f199f4082be22c
URL: https://github.com/kamailio/kamailio/commit/7f9547ae2b5a5848f693544124f199f4...
Author: Daniel-Constantin Mierla miconda@gmail.com
Committer: Daniel-Constantin Mierla miconda@gmail.com
Date: 2022-12-07T11:44:56+01:00
misc/examples/kemi: native config upated
---
Modified: misc/examples/kemi/kamailio-basic-kemi-native.cfg
---
Diff:  https://github.com/kamailio/kamailio/commit/7f9547ae2b5a5848f693544124f199f4...
Patch: https://github.com/kamailio/kamailio/commit/7f9547ae2b5a5848f693544124f199f4...
---

diff --git a/misc/examples/kemi/kamailio-basic-kemi-native.cfg b/misc/examples/kemi/kamailio-basic-kemi-native.cfg
index c95517cc9e..984c45b877 100644
--- a/misc/examples/kemi/kamailio-basic-kemi-native.cfg
+++ b/misc/examples/kemi/kamailio-basic-kemi-native.cfg
@@ -20,18 +20,20 @@ request_route {
    	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)
-	# handle retransmissions
-	if(t_precheck_trans()) {
-		t_check_trans();
-		exit;
-	}
-	t_check_trans();
-
    # authentication
    route(AUTH);
@@ -86,8 +88,14 @@ route[RELAY] {
# Per SIP request initial checks
 route[REQINIT] {
+	# no connect for sending replies
+	set_reply_no_connect();
+	# enforce symmetric signaling
+	# - send back replies to the source address of request
+	force_rport();
+
 #!ifdef WITH_ANTIFLOOD
-	# flood dection from same IP and traffic ban for a while
+	# 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) {
@@ -102,11 +110,12 @@ route[REQINIT] {
    		exit;
    	}
    }
-	if($ua =~ "friendly-scanner") {
-		sl_send_reply("200", "OK");
+#!endif
+	if($ua =~ "friendly|scanner|sipcli|sipvicious|VaxSIPUserAgent|pplsip") {
+		# silent drop for scanners - uncomment next line if want to reply
+		# sl_send_reply("200", "OK");
    	exit;
    }
-#!endif
if (!mf_process_maxfwd_header("10")) {
    	sl_send_reply("483","Too Many Hops");
@@ -118,8 +127,8 @@ route[REQINIT] {
    	exit;
    }
-	if(!sanity_check("1511", "7")) {
-		xlog("Malformed SIP message from $si:$sp\n");
+	if(!sanity_check("17895", "7")) {
+		xlog("Malformed SIP request from $si:$sp\n");
    	exit;
    }
 }

    