dispatcher: add state to mode in ds_list_exists

adds Bit 3 to allow the check of active/inactive entries in ds_list

src/modules/dispatcher/dispatch.c

@@ -2998,7 +2998,9 @@ int ds_is_addr_from_set(sip_msg_t *_m, struct ip_addr *pipaddr,
 				&& ((mode & DS_MATCH_NOPORT) || node->dlist[j].port == 0
 						   || tport == node->dlist[j].port)
 				&& ((mode & DS_MATCH_NOPROTO)
-						   || tproto == node->dlist[j].proto)) {
+						   || tproto == node->dlist[j].proto)
+				&& (((mode & DS_MATCH_ACTIVE) && !ds_skip_dst(node->dlist[j].flags))
+						   || !(mode & DS_MATCH_ACTIVE))) {
 			if(export_set_pv && ds_setid_pvname.s != 0) {
 				memset(&val, 0, sizeof(pv_value_t));
 				val.flags = PV_VAL_INT | PV_TYPE_INT;

src/modules/dispatcher/dispatch.h

@@ -57,6 +57,7 @@
 #define DS_MATCH_ALL		0
 #define DS_MATCH_NOPORT		1
 #define DS_MATCH_NOPROTO	2
+#define DS_MATCH_ACTIVE 	4
 
 #define DS_SETOP_DSTURI		0
 #define DS_SETOP_RURI		1

src/modules/dispatcher/doc/dispatcher_admin.xml

@@ -1569,8 +1569,10 @@ if(ds_list_exists("10")) {
 		<listitem>
 			<para><emphasis>mode</emphasis> - (optional) - a bitmask to specify
 				how the matching should be done. If is 0, all ip, port and
-				proto are matched. If bit one is set, then port is ignored.
-				If bit two is set, then protocol is ignored. The parameter
+				proto are matched and active status is ignored.
+				If bit one is set, then port is ignored.
+				If bit two is set, then protocol is ignored.
+				If bit three is set, then state must be active.	The parameter
 				can be an integer or a variable holding an integer value.
 				It must be provided if the uri parameter is provided.
 			</para>