Added write BDT application (#170)

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

src/bacnet/basic/bbmd/h_bbmd.c

@@ -66,9 +66,9 @@
 /** enable debugging */
 static bool BVLC_Debug = false;
 /** result from a client request */
-static uint16_t BVLC_Result_Code = BVLC_RESULT_SUCCESSFUL_COMPLETION;
+static uint16_t BVLC_Result_Code = BVLC_RESULT_INVALID;
 /** incoming function */
-static uint8_t BVLC_Function_Code = BVLC_RESULT;
+static uint8_t BVLC_Function_Code = BVLC_INVALID;
 /** Global IP address for NAT handling */
 static BACNET_IP_ADDRESS BVLC_Global_Address;
 /** Flag to indicate if NAT handling is enabled/disabled */
@@ -1183,6 +1183,20 @@ int bvlc_bbmd_read_bdt(BACNET_IP_ADDRESS *bbmd_addr)
     return bip_send_mpdu(bbmd_addr, &BVLC_Buffer[0], BVLC_Buffer_Len);
 }
 
+/**
+ * Write the BDT to the indicated BBMD
+ * @param bbmd_addr - IPv4 address of BBMD with which to read
+ * @return Positive number (of bytes sent) on success
+ */
+int bvlc_bbmd_write_bdt(BACNET_IP_ADDRESS *bbmd_addr,
+    BACNET_IP_BROADCAST_DISTRIBUTION_TABLE_ENTRY *bdt_list)
+{
+    BVLC_Buffer_Len = bvlc_encode_write_broadcast_distribution_table(
+        &BVLC_Buffer[0], sizeof(BVLC_Buffer), bdt_list);
+
+    return bip_send_mpdu(bbmd_addr, &BVLC_Buffer[0], BVLC_Buffer_Len);
+}
+
 /**
  * Read the FDT from the indicated BBMD
  * @param bbmd_addr - IPv4 address of BBMD with which to read
@@ -1211,6 +1225,15 @@ uint16_t bvlc_get_last_result(void)
     return BVLC_Result_Code;
 }
 
+/**
+ * Sets the last BVLL Result we received
+ * @param result code
+ */
+void bvlc_set_last_result(uint16_t result_code)
+{
+    BVLC_Result_Code = result_code;
+}
+
 /**
  * Returns the current BVLL Function Code we are processing.
  * We have to store this higher layer code for when the lower layers
@@ -1224,6 +1247,15 @@ uint8_t bvlc_get_function_code(void)
     return BVLC_Function_Code;
 }
 
+/**
+ * Sets the current BVLL Function Code
+ * @param A BVLC_ code, such as BVLC_ORIGINAL_UNICAST_NPDU.
+ */
+void bvlc_set_function_code(uint8_t function_code)
+{
+    BVLC_Function_Code = function_code;
+}
+
 #if BBMD_ENABLED
 /**
  * @brief Get handle to broadcast distribution table (BDT).

src/bacnet/basic/bbmd/h_bbmd.h

@@ -68,9 +68,13 @@ int bvlc_send_pdu(BACNET_ADDRESS *dest,
 
 BACNET_STACK_EXPORT
 uint16_t bvlc_get_last_result(void);
+BACNET_STACK_EXPORT
+void bvlc_set_last_result(uint16_t result_code);
 
 BACNET_STACK_EXPORT
 uint8_t bvlc_get_function_code(void);
+BACNET_STACK_EXPORT
+void bvlc_set_function_code(uint8_t function_code);
 
 BACNET_STACK_EXPORT
 void bvlc_maintenance_timer(uint16_t seconds);
@@ -84,6 +88,9 @@ void bvlc_debug_enable(void);
 /* send a Read BDT request */
 BACNET_STACK_EXPORT
 int bvlc_bbmd_read_bdt(BACNET_IP_ADDRESS *bbmd_addr);
+BACNET_STACK_EXPORT
+int bvlc_bbmd_write_bdt(BACNET_IP_ADDRESS *bbmd_addr,
+    BACNET_IP_BROADCAST_DISTRIBUTION_TABLE_ENTRY *bdt_list);
 /* send a Read FDT request */
 BACNET_STACK_EXPORT
 int bvlc_bbmd_read_fdt(BACNET_IP_ADDRESS *bbmd_addr);