MAC functional updates and fix's:

Fixed possible null pointer use when mac extension is not enabled and
handled frame version 2 packet.

Enabled MCPS confirmation extension use when extension is enabled.

Accept to send and receive MAC packet where is no Destination address.

Enabled sequence number suppression when send MAC packet without
destination address.

Improved unit test coverage and tested MAC packet with no destinaton
address.

Author: Juha Heiskanen

source/MAC/IEEE802_15_4/mac_header_helper_functions.c

@@ -683,38 +683,6 @@ void mac_header_information_elements_preparation(mac_pre_build_frame_t *buffer)
     }
 }
 
-bool mac_ie_vector_length_validate(ns_ie_iovec_t *ie_vector, uint16_t iov_length,  uint16_t *length_out)
-{
-    *length_out = 0;
-    if (!iov_length) {
-        return true;
-    }
-
-    if (iov_length != 0 && !ie_vector) {
-        return false;
-    }
-
-    uint16_t msg_length = 0;
-    ns_ie_iovec_t *msg_iov = ie_vector;
-    for (uint_fast16_t i = 0; i < iov_length; i++) {
-        if (msg_iov->iovLen != 0 && !msg_iov->ieBase) {
-            return false;
-        }
-        msg_length += msg_iov->iovLen;
-        if (msg_length < msg_iov->iovLen) {
-            return false;
-        }
-        msg_iov++;
-    }
-
-    if (length_out) {
-        *length_out = msg_length;
-    }
-
-    return true;
-
-}
-
 uint16_t mac_buffer_total_payload_length(mac_pre_build_frame_t *buffer)
 {
     return mac_payload_length_calc_with_ie(buffer->mac_payload_length, buffer->payloadsIeLength);

source/MAC/IEEE802_15_4/mac_header_helper_functions.h

@@ -51,8 +51,6 @@ void mac_header_information_elements_preparation(struct mac_pre_build_frame *buf
 
 uint16_t mac_buffer_total_payload_length(struct mac_pre_build_frame *buffer);
 
-bool mac_ie_vector_length_validate(struct ns_ie_iovec *ie_vector, uint16_t iov_length, uint16_t *length_out);
-
 /**
  *  Next function should only call when address mode is not MAC_ADDR_MODE_NONE and parsed proper header!
  */

source/MAC/IEEE802_15_4/mac_indirect_data.c

@@ -93,7 +93,13 @@ void mac_indirect_data_ttl_handle(protocol_interface_rf_mac_setup_s *cur, uint16
             confirm.status = MLME_TRANSACTION_EXPIRED;
 
             mcps_sap_prebuild_frame_buffer_free(buf_temp);
-            if( api->data_conf_cb ) {
+
+            if (cur->mac_extension_enabled) {
+                mcps_data_conf_payload_t data_conf;
+                memset(&data_conf, 0, sizeof(mcps_data_conf_payload_t));
+                //Check Payload Here
+                api->data_conf_ext_cb(api, &confirm, &data_conf);
+            } else {
                 api->data_conf_cb(api, &confirm);
             }
         }

source/MAC/IEEE802_15_4/mac_mcps_sap.c

@@ -87,7 +87,14 @@ static void mcps_data_confirm_cb(protocol_interface_rf_mac_setup_s *rf_mac_setup
     mac_data_poll_radio_disable_check(rf_mac_setup);
 
     if( get_sw_mac_api(rf_mac_setup) ) {
-        get_sw_mac_api(rf_mac_setup)->data_conf_cb(get_sw_mac_api(rf_mac_setup), confirm);
+        if (rf_mac_setup->mac_extension_enabled) {
+            mcps_data_conf_payload_t data_conf;
+            memset(&data_conf, 0, sizeof(mcps_data_conf_payload_t));
+            //Check Payload Here
+            get_sw_mac_api(rf_mac_setup)->data_conf_ext_cb(get_sw_mac_api(rf_mac_setup), confirm, &data_conf);
+        } else {
+            get_sw_mac_api(rf_mac_setup)->data_conf_cb(get_sw_mac_api(rf_mac_setup), confirm);
+        }
     }
 }
 
@@ -98,13 +105,43 @@ void mcps_sap_data_req_handler(protocol_interface_rf_mac_setup_s *rf_mac_setup ,
     mcps_sap_data_req_handler_ext(rf_mac_setup, data_req, &ie_list, NULL);
 }
 
+static bool mac_ie_vector_length_validate(ns_ie_iovec_t *ie_vector, uint16_t iov_length,  uint16_t *length_out)
+{
+    *length_out = 0;
+    if (!iov_length) {
+        return true;
+    }
+
+    if (iov_length != 0 && !ie_vector) {
+        return false;
+    }
+
+    uint16_t msg_length = 0;
+    ns_ie_iovec_t *msg_iov = ie_vector;
+    for (uint_fast16_t i = 0; i < iov_length; i++) {
+        if (msg_iov->iovLen != 0 && !msg_iov->ieBase) {
+            return false;
+        }
+        msg_length += msg_iov->iovLen;
+        if (msg_length < msg_iov->iovLen) {
+            return false;
+        }
+        msg_iov++;
+    }
+
+    if (length_out) {
+        *length_out = msg_length;
+    }
+
+    return true;
+
+}
+
 
 void mcps_sap_data_req_handler_ext(protocol_interface_rf_mac_setup_s *rf_mac_setup , const mcps_data_req_t *data_req , const mcps_data_req_ie_list_t *ie_list, const channel_list_s *asynch_channel_list) {
     uint8_t status = MLME_SUCCESS;
     mac_pre_build_frame_t *buffer = NULL;
 
-    //Asynch Data request will be enabled seperately lare API is defined
-
 
     if (!rf_mac_setup->mac_security_enabled) {
         if (data_req->Key.SecurityLevel) {
@@ -206,7 +243,7 @@ void mcps_sap_data_req_handler_ext(protocol_interface_rf_mac_setup_s *rf_mac_set
         buffer->fcf_dsn.informationElementsPresets = true;
     }
 
-    if (buffer->DstPANId == buffer->SrcPANId) {
+    if (buffer->fcf_dsn.DstAddrMode && buffer->DstPANId == buffer->SrcPANId) {
         if (buffer->fcf_dsn.frameVersion == MAC_FRAME_VERSION_2015) {
 
             if (buffer->fcf_dsn.DstAddrMode && buffer->fcf_dsn.SrcAddrMode) {
@@ -218,6 +255,10 @@ void mcps_sap_data_req_handler_ext(protocol_interface_rf_mac_setup_s *rf_mac_set
         } else {
             buffer->fcf_dsn.intraPan = true;
         }
+    } else if (buffer->fcf_dsn.DstAddrMode == MAC_ADDR_MODE_NONE && buffer->fcf_dsn.frameVersion == MAC_FRAME_VERSION_2015) {
+        //Suppress sequence number
+        buffer->fcf_dsn.sequenceNumberSuppress = true;
+        buffer->mac_header_length_with_security--;
     }
 
     //Check PanID presents at header
@@ -625,7 +666,7 @@ static int8_t mac_data_sap_rx_handler(mac_pre_parsed_frame_t *buf, protocol_inte
     if (mac) {
 
         if (buf->fcf_dsn.frameVersion == MAC_FRAME_VERSION_2015) {
-            if (!mac->data_ind_ext_cb) {
+            if (!rf_mac_setup->mac_extension_enabled) {
                 tr_debug("No Ext reg");
                 goto DROP_PACKET;
             }

source/MAC/IEEE802_15_4/mac_pd_sap.c

@@ -460,7 +460,9 @@ int8_t mac_pd_sap_data_cb(void *identifier, arm_phy_sap_msg_t *message)
 
             switch (buffer->fcf_dsn.frametype) {
                 case FC_DATA_FRAME:
-                    if (buffer->fcf_dsn.SrcAddrMode == MAC_ADDR_MODE_NONE || buffer->fcf_dsn.DstAddrMode == MAC_ADDR_MODE_NONE) {
+                    if (buffer->fcf_dsn.SrcAddrMode == MAC_ADDR_MODE_NONE) {
+                        goto ERROR_HANDLER;
+                    } else if (buffer->fcf_dsn.DstAddrMode == MAC_ADDR_MODE_NONE && buffer->fcf_dsn.frameVersion != MAC_FRAME_VERSION_2015) {
                         goto ERROR_HANDLER;
                     }
                     break;

test/nanostack/unittest/mac/mac_header_helper_functions/mac_header_helper_functionstest.cpp

@@ -134,12 +134,6 @@ TEST(mac_header_helper_functions, test_mac_header_information_elements_preparati
     CHECK(test_mac_header_information_elements_preparation());
 }
 
-
-TEST(mac_header_helper_functions, test_mac_ie_vector_length_validate)
-{
-    CHECK(test_mac_ie_vector_length_validate());
-}
-
 TEST(mac_header_helper_functions, test_mac_buffer_total_payload_length)
 {
     CHECK(test_mac_buffer_total_payload_length());

test/nanostack/unittest/mac/mac_header_helper_functions/test_mac_header_helper_functions.c

@@ -920,44 +920,44 @@ bool test_mac_header_information_elements_preparation()
 return true;
 }
 
-bool test_mac_ie_vector_length_validate()
-{
-    uint16_t length;
-    if (!mac_ie_vector_length_validate(NULL, 0,  &length) || length) {
-        return false;
-    }
-
-    if (mac_ie_vector_length_validate(NULL, 2,  &length) || length) {
-        return false;
-    }
-
-    uint8_t temp[8];
-    ns_ie_iovec_t vector_list[3];
-    ns_ie_iovec_t *vector = vector_list;
-    vector->ieBase = NULL;
-    vector->iovLen = 100;
-    if (mac_ie_vector_length_validate(vector_list, 3,  &length)) {
-        return false;
-    }
-
-    vector->ieBase = temp;
-    vector++;
-    vector->ieBase = temp;
-    vector->iovLen = 0xfffe;
-    if (mac_ie_vector_length_validate(vector_list, 3,  &length)) {
-        return false;
-    }
-    vector->iovLen = 100;
-
-    vector++;
-    vector->ieBase = temp;
-    vector->iovLen = 200;
-
-    if (!mac_ie_vector_length_validate(vector_list, 3,  &length) || length != 400) {
-            return false;
-        }
-    return true;
-}
+//bool test_mac_ie_vector_length_validate()
+//{
+//    uint16_t length;
+//    if (!mac_ie_vector_length_validate(NULL, 0,  &length) || length) {
+//        return false;
+//    }
+//
+//    if (mac_ie_vector_length_validate(NULL, 2,  &length) || length) {
+//        return false;
+//    }
+//
+//    uint8_t temp[8];
+//    ns_ie_iovec_t vector_list[3];
+//    ns_ie_iovec_t *vector = vector_list;
+//    vector->ieBase = NULL;
+//    vector->iovLen = 100;
+//    if (mac_ie_vector_length_validate(vector_list, 3,  &length)) {
+//        return false;
+//    }
+//
+//    vector->ieBase = temp;
+//    vector++;
+//    vector->ieBase = temp;
+//    vector->iovLen = 0xfffe;
+//    if (mac_ie_vector_length_validate(vector_list, 3,  &length)) {
+//        return false;
+//    }
+//    vector->iovLen = 100;
+//
+//    vector++;
+//    vector->ieBase = temp;
+//    vector->iovLen = 200;
+//
+//    if (!mac_ie_vector_length_validate(vector_list, 3,  &length) || length != 400) {
+//            return false;
+//        }
+//    return true;
+//}
 
 bool test_mac_buffer_total_payload_length()
 {

test/nanostack/unittest/mac/mac_header_helper_functions/test_mac_header_helper_functions.h

@@ -65,8 +65,6 @@ bool test_mac_payload_information_elements_parse();
 
 bool test_mac_header_information_elements_preparation();
 
-bool test_mac_ie_vector_length_validate();
-
 bool test_mac_buffer_total_payload_length();
 
 #ifdef __cplusplus

test/nanostack/unittest/mac/mac_mcps_sap/mac_mcps_saptest.cpp

@@ -113,3 +113,9 @@ TEST(mac_mcps_sap, test_mac_mcps_buffer_queue_free)
 {
     CHECK(test_mac_mcps_buffer_queue_free());
 }
+
+TEST(mac_mcps_sap, test_mcps_sap_data_req_handler_ext)
+{
+    CHECK(test_mcps_sap_data_req_handler_ext());
+}
+