Merge pull request #11359 from anttiylitokola/update-mbed-coap-to-5.0.0

Update mbed-coap to version 5.1.0

Author: 0xc0170

features/frameworks/mbed-coap/CHANGELOG.md

@@ -1,6 +1,23 @@
 # Change Log
 
-## [v4.8.1(https://github.com/ARMmbed/mbed-coap/releases/tag/v4.8.1)
+## [v5.1.0](https://github.com/ARMmbed/mbed-coap/releases/tag/v5.1.0)
+
+- Introduce SN_COAP_REDUCE_BLOCKWISE_HEAP_FOOTPRINT configuration flag. 
+  Flag is disabled by default to keep the backward compatibility in place.
+  If flag is enabled, application must NOT free the payload when it gets the COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED status.
+  And application must call sn_coap_protocol_block_remove() instead.
+
+-[Full Changelog](https://github.com/ARMmbed/mbed-coap/compare/v5.0.0...v5.1.0)
+
+## [v5.0.0](https://github.com/ARMmbed/mbed-coap/releases/tag/v5.0.0)
+
+- Reduce heap footprint by storing only single block when receiving a blockwise message.
+    * User is now responsible of freeing the data by calling sn_coap_protocol_block_remove() and must not free the payload separately.
+- Bug fix: Request blockwise transfer if incoming payload length is too large and when it comes without block indication. 
+
+-[Full Changelog](https://github.com/ARMmbed/mbed-coap/compare/v4.8.1...v5.0.0)
+
+## [v4.8.1](https://github.com/ARMmbed/mbed-coap/releases/tag/v4.8.1)
 - Store ACK's also into duplicate info list.
 - ROM size optimization. Flash size has gone down ~1100 bytes.
 

features/frameworks/mbed-coap/mbed-coap/sn_coap_header.h

@@ -157,7 +157,7 @@ typedef enum sn_coap_status_ {
     COAP_STATUS_PARSER_BLOCKWISE_ACK           = 4, /**< Acknowledgement for sent Blockwise message received */
     COAP_STATUS_PARSER_BLOCKWISE_MSG_REJECTED  = 5, /**< Blockwise message received but not supported by compiling switch */
     COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED  = 6, /**< Blockwise message fully received and returned to app.
-                                                         User must take care of releasing whole payload of the blockwise messages */
+                                                         User is responsible of freeing the data by calling sn_coap_protocol_block_remove() */
     COAP_STATUS_BUILDER_MESSAGE_SENDING_FAILED = 7, /**< When re-transmissions have been done and ACK not received, CoAP library calls
                                                          RX callback with this status */
 

features/frameworks/mbed-coap/mbed-coap/sn_config.h

@@ -260,4 +260,14 @@
 #define SN_COAP_BLOCKWISE_INTERNAL_BLOCK_2_HANDLING_ENABLED  1
 #endif
 
+/**
+ * \def SN_COAP_REDUCE_BLOCKWISE_HEAP_FOOTPRINT
+ * \brief A heap optimization switch, which removes unnecessary copy of the blockwise data.
+ * If enabled, application must NOT free the payload when it gets the COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVED status.
+ * Application must call sn_coap_protocol_block_remove() instead.
+ */
+#ifndef SN_COAP_REDUCE_BLOCKWISE_HEAP_FOOTPRINT
+#define SN_COAP_REDUCE_BLOCKWISE_HEAP_FOOTPRINT              0   /**< Disabled by default */
+#endif
+
 #endif // SN_CONFIG_H

features/frameworks/mbed-coap/source/include/sn_coap_protocol_internal.h

@@ -97,6 +97,7 @@ typedef struct coap_blockwise_payload_ {
 
     uint16_t            payload_len;
     uint8_t             *payload_ptr;
+    unsigned int        use_size1:1;
 
     ns_list_link_t     link;
 } coap_blockwise_payload_s;