modules/ims_usrloc_pcscf: added new parameter to contact match using only URI host and port

modules/ims_usrloc_pcscf/doc/ims_usrloc_pcscf_admin.xml

@@ -235,6 +235,34 @@ modparam("ims_usrloc_pcscf", "lookup_check_received", 0)
 </programlisting>
       </example>
     </section>
+    <section>
+      <title>match_contact_host_port (int)</title>
+
+      <para>If set to 1 (default), the contact is matched using only host
+	  and port in the contact URI.</para>
+
+      <itemizedlist>
+        <listitem>
+          <para>0 - When matching contact do full contact match procedure.</para>
+        </listitem>
+
+        <listitem>
+          <para>1 - When matching contact compare only host and port of the contact URI.</para>
+        </listitem>
+      </itemizedlist>
+
+      <para><emphasis>Default value is 1.</emphasis></para>
+
+      <example>
+        <title>Set match_contact_host_port parameter</title>
+
+        <programlisting format="linespecific">...
+modparam("ims_usrloc_pcscf", "match_contact_host_port", 0)
+...
+</programlisting>
+      </example>
+    </section>
+    
   </section>
 
   <section>

modules/ims_usrloc_pcscf/udomain.c

@@ -64,6 +64,7 @@
 extern int db_mode;
 extern unsigned int hashing_type;
 extern int lookup_check_received;
+extern int match_contact_host_port;
 
 #ifdef STATISTICS
 static char *build_stat_name( str* domain, char *var_name)
@@ -477,7 +478,21 @@ int get_pcontact(udomain_t* _d, str* _contact, struct pcontact** _c) {
 			*_c = c;
 			return 0;
 		}
-
+		
+		if(match_contact_host_port) {
+		    LM_DBG("Comparing needle user@host:port [%.*s@%.*s:%d] and contact_user@contact_host:port [%.*s@%.*s:%d]\n", needle_uri.user.len, needle_uri.user.s, 
+			    needle_uri.host.len, needle_uri.host.s, needle_uri.port_no,
+			    c->contact_user.len, c->contact_user.s, c->contact_host.len, c->contact_host.s, c->contact_port);
+
+		    if((needle_uri.user.len == c->contact_user.len && (memcmp(needle_uri.user.s, c->contact_user.s, needle_uri.user.len) ==0)) &&
+			    (needle_uri.host.len == c->contact_host.len && (memcmp(needle_uri.host.s, c->contact_host.s, needle_uri.host.len) ==0)) &&
+			    (needle_uri.port_no == c->contact_port)) {
+			LM_DBG("Match!!\n");
+			*_c = c;
+			return 0;
+		    }
+		}
+		
 		LM_DBG("Searching for [%.*s] and comparing to [%.*s]\n", _contact->len, _contact->s, c->aor.len, c->aor.s);
 
 		/* hosts HAVE to match */

modules/ims_usrloc_pcscf/ul_mod.c

@@ -86,6 +86,7 @@ int ul_fetch_rows 	= 2000;
 int hashing_type 	= 0;						/*!< has type for storing P-CSCF contacts - 0 - use full contact AOR, 1 - use IP:PORT only */
 
 int lookup_check_received = 1;						/*!< Should we check received on lookup? */
+int match_contact_host_port = 1;					/*!< Should we match contact just based on rui host and port*/
 
 db1_con_t* ul_dbh = 0;
 db_func_t ul_dbf; 
@@ -112,6 +113,7 @@ static param_export_t params[] = {
 	{"db_mode",             INT_PARAM, &db_mode         },
 	{"hashing_type",		INT_PARAM, &hashing_type	},
 	{"lookup_check_received",		INT_PARAM, &lookup_check_received	},
+	{"match_contact_host_port",		INT_PARAM, &match_contact_host_port	},
 
 	{0, 0, 0}
 };