Added sample Confirmed Private Transfer implementation files and demo for same.

bacnet-stack/src/apdu.c

@@ -453,16 +453,33 @@ void apdu_handler(
                 invoke_id = apdu[1];
                 service_choice = apdu[2];
                 len = 3;
-                len +=
-                    decode_tag_number_and_value(&apdu[len], &tag_number,
-                    &len_value);
-                /* FIXME: we could validate that the tag is enumerated... */
-                len += decode_enumerated(&apdu[len], len_value, &error_class);
-                len +=
-                    decode_tag_number_and_value(&apdu[len], &tag_number,
-                    &len_value);
-                /* FIXME: we could validate that the tag is enumerated... */
-                len += decode_enumerated(&apdu[len], len_value, &error_code);
+
+				/* FIXME: Currently special case for C_P_T but there are others which may
+				   need consideration such as ChangeList-Error, CreateObject-Error,
+				   WritePropertyMultiple-Error and VTClose_Error but they may be left as
+				   is for now until support for these services is added */
+
+				if(service_choice = SERVICE_CONFIRMED_PRIVATE_TRANSFER) { /* skip over opening tag 0 */
+					if (decode_is_opening_tag_number(&apdu[len], 0)) {
+						len++; /* a tag number of 0 is not extended so only one octet */
+					}
+				}
+				len +=
+					decode_tag_number_and_value(&apdu[len], &tag_number,
+					&len_value);
+				/* FIXME: we could validate that the tag is enumerated... */
+				len += decode_enumerated(&apdu[len], len_value, &error_class);
+				len +=
+					decode_tag_number_and_value(&apdu[len], &tag_number,
+					&len_value);
+				/* FIXME: we could validate that the tag is enumerated... */
+				len += decode_enumerated(&apdu[len], len_value, &error_code);
+
+				if(service_choice = SERVICE_CONFIRMED_PRIVATE_TRANSFER) { /* skip over closing tag 0 */
+					if (decode_is_closing_tag_number(&apdu[len], 0)) {
+						len++; /* a tag number of 0 is not extended so only one octet */
+					}
+				}
                 if (service_choice < MAX_BACNET_CONFIRMED_SERVICE) {
                     if (Error_Function[service_choice])
                         Error_Function[service_choice] (src, invoke_id,

bacnet-stack/src/bacstr.c

@@ -35,6 +35,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <string.h>     /* for strlen */
+#include "config.h"
 #include "bacstr.h"
 #include "bits.h"