Merge latest fixes in from upstream (Apr through June)

.github/workflows/basic_checks.yml

@@ -1,4 +1,4 @@
- This workflow performs the checks like license check,
+# This workflow performs the checks like license check,
 # doxygen, unit tests etc.
 name: Basic Checks
 

connectivity/FEATURE_BLE/README.md

@@ -8,3 +8,19 @@ This is the Github repository for the `BLE_API`. Please see the [Mbed OS Example
 * [Mbed OS example BLE GitHub repo](https://github.com/ARMmbed/mbed-os-example-ble) for all Mbed OS BLE examples.
 * [Mbed OS BLE introduction](https://os.mbed.com/docs/latest/apis/ble.html) for an introduction to Mbed BLE.
 * [Mbed OS BLE API page](https://os.mbed.com/docs/latest/apis/bluetooth.html) for the Mbed BLE API documentation.
+
+## Privacy notice
+
+The Cordio Bluetooth stack only stores one single signing key. This key is then 
+shared across all bonded devices. If a malicious device bonds with the Mbed OS 
+application it then gains knowledge of the shared signing key of the Mbed OS device. 
+The malicious device can then track the Mbed OS device whenever a signing write 
+is issued from it. 
+
+To overcome this privacy issue do not issue signed writes from the Mbed OS device.
+A signed write occurs when the member function `write` of `GattClient` is called 
+with its `cmd` argument set to `GATT_OP_SIGNED_WRITE_CMD`.
+
+Instead of using signed writes, enable encryption on the connection. This is achieved
+ by calling the function `setLinkEncryption` of the `SecurityManager`. Set the encryption 
+to at least `ENCRYPTED`. 

connectivity/cellular/include/cellular/framework/AT/AT_CellularDevice.h

@@ -67,7 +67,7 @@ class AT_CellularDevice : public CellularDevice {
     };
 
 public:
-    AT_CellularDevice(FileHandle *fh);
+    AT_CellularDevice(FileHandle *fh, char *delim = "\r");
     virtual ~AT_CellularDevice();
 
     virtual nsapi_error_t clear();

connectivity/cellular/source/framework/AT/AT_CellularDevice.cpp

@@ -39,9 +39,9 @@ using namespace std::chrono_literals;
 #define DEFAULT_AT_TIMEOUT 1s // at default timeout
 const int MAX_SIM_RESPONSE_LENGTH = 16;
 
-AT_CellularDevice::AT_CellularDevice(FileHandle *fh) :
+AT_CellularDevice::AT_CellularDevice(FileHandle *fh, char *delim):
     CellularDevice(),
-    _at(fh, _queue, DEFAULT_AT_TIMEOUT, "\r"),
+    _at(fh, _queue, DEFAULT_AT_TIMEOUT, delim),
 #if MBED_CONF_CELLULAR_USE_SMS
     _sms(0),
 #endif // MBED_CONF_CELLULAR_USE_SMS

connectivity/cellular/tests/UNITTESTS/doubles/AT_CellularDevice_stub.cpp

@@ -33,9 +33,9 @@ bool AT_CellularDevice_stub::pin_needed = false;
 bool AT_CellularDevice_stub::supported_bool = false;
 int AT_CellularDevice_stub::max_sock_value = 1;
 
-AT_CellularDevice::AT_CellularDevice(FileHandle *fh) :
+AT_CellularDevice::AT_CellularDevice(FileHandle *fh, char *delim) :
     CellularDevice(),
-    _at(fh, _queue, get_property(AT_CellularDevice::PROPERTY_AT_SEND_DELAY), "\r"),
+    _at(fh, _queue, get_property(AT_CellularDevice::PROPERTY_AT_SEND_DELAY), delim),
 #if MBED_CONF_CELLULAR_USE_SMS
     _sms(0),
 #endif // MBED_CONF_CELLULAR_USE_SMS

connectivity/drivers/emac/TARGET_ARM_SSG/COMPONENT_SMSC9220/smsc9220_emac.cpp

@@ -89,14 +89,13 @@ emac_mem_buf_t *SMSC9220_EMAC::low_level_input()
         message_length -= CRC_LENGTH_BYTES;
     }
 
-    p = _memory_manager->alloc_heap(SMSC9220_ETH_MAX_FRAME_SIZE,
+    p = _memory_manager->alloc_heap(message_length,
                                     SMSC9220_BUFF_ALIGNMENT);
 
     if (p != NULL) {
         _RXLockMutex.lock();
-        received_bytes = smsc9220_receive_by_chunks(dev,
-                                  (char*)_memory_manager->get_ptr(p),
-                                  _memory_manager->get_len(p));
+        received_bytes = smsc9220_receive_packet(dev,
+                                  _memory_manager->get_ptr(p));
         if(received_bytes == 0){
             _memory_manager->free(p);
             p = nullptr;
@@ -148,7 +147,6 @@ bool SMSC9220_EMAC::link_out(emac_mem_buf_t *buf)
     if(buf == NULL) {
         return false;
     } else {
-        uint32_t buffer_chain_length = 0;
         enum smsc9220_error_t error = SMSC9220_ERROR_NONE;
         /* If buffer is chained or not aligned then
          * make a contiguous aligned copy of it */
@@ -170,16 +168,12 @@ bool SMSC9220_EMAC::link_out(emac_mem_buf_t *buf)
             buf = copy_buf;
         }
 
-        buffer_chain_length = _memory_manager->get_total_len(buf);
-
         _TXLockMutex.lock();
-        error = smsc9220_send_by_chunks(dev,
-                                      buffer_chain_length,
-                                      true,
-                                      (const char*)_memory_manager->get_ptr(buf),
+        error = smsc9220_send_packet(dev,
+                                      _memory_manager->get_ptr(buf),
                                       _memory_manager->get_len(buf));
         _memory_manager->free(buf);
-        _TXLockMutex.unlock();
+        _TXLockMutex.unlock();        
         return (error == SMSC9220_ERROR_NONE);
     }
 }
@@ -211,7 +205,7 @@ bool SMSC9220_EMAC::power_up()
                                    this));
 
     /* Initialize the hardware */
-    enum smsc9220_error_t init_successful = smsc9220_init(dev, &ThisThread::sleep_for);
+    enum smsc9220_error_t init_successful = smsc9220_init(dev, &thread_sleep_for);
     if (init_successful != SMSC9220_ERROR_NONE) {
         return false;
     }
@@ -237,7 +231,7 @@ bool SMSC9220_EMAC::power_up()
                                              &SMSC9220_EMAC::link_status_task));
 
     /* Allow the Link Status task to detect the initial link state */
-    ThisThread::sleep_for(10);
+    ThisThread::sleep_for(10ms);
     _link_status_task_handle = mbed::mbed_event_queue()->call_every(
                               LINK_STATUS_TASK_PERIOD_MS,
                               mbed::callback(this,

connectivity/drivers/emac/TARGET_ARM_SSG/COMPONENT_SMSC9220/smsc9220_emac_config.h

@@ -36,7 +36,7 @@
 #define FLAG_RX                              1U
 #define LINK_STATUS_THREAD_PRIORITY          (osPriorityNormal)
 #define LINK_STATUS_THREAD_STACKSIZE         512U
-#define LINK_STATUS_TASK_PERIOD_MS           200U
+#define LINK_STATUS_TASK_PERIOD_MS           200ms
 #define PHY_STATE_LINK_DOWN                  false
 #define PHY_STATE_LINK_UP                    true
 #define CRC_LENGTH_BYTES                     4U

connectivity/drivers/mbedtls/TARGET_NUVOTON/TARGET_M480/des/des_alt.c

@@ -375,7 +375,7 @@ static int mbedtls_des_docrypt(uint16_t keyopt, uint8_t key[3][MBEDTLS_DES_KEY_S
      * 1. BE for byte sequence in word
      * 2. BE for word sequence in double-word
      */
-    TDES_Open(CRPT
+    TDES_Open(CRPT,
             0,                                                // Channel number (0~4) 
             enc,                                                // 0: decode, 1: encode
             (tdes_opmode & CRPT_TDES_CTL_TMODE_Msk) ? 1 : 0,    // 0: DES, 1: TDES 

connectivity/drivers/mbedtls/TARGET_NUVOTON/TARGET_M480/ecp/ecp_internal_alt.c

@@ -502,6 +502,11 @@ NU_STATIC int internal_run_eccop(const mbedtls_ecp_group *grp,
         return MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED;
     }
 
+    /* NOTE: Engine doesn't support P + Q when P and Q are the same. Workaround by 2*P */
+    if (mbedtls_ecp_point_cmp(P, Q) == 0) {
+        return internal_run_eccop(grp, R, NULL, P, NULL, NULL, ECCOP_POINT_DOUBLE);
+    }
+
     int ret;
     bool ecc_done;
 

connectivity/lwipstack/lwip/src/apps/lwiperf/lwip_lwiperf.c

@@ -263,7 +263,7 @@ lwiperf_tcp_close(lwiperf_state_tcp_t *conn, enum lwiperf_report_type report_typ
       /* don't want to wait for free memory here... */
       tcp_abort(conn->conn_pcb);
     }
-  } else {
+  } else if (conn->server_pcb != NULL) {
     /* no conn pcb, this is the listener pcb */
     err = tcp_close(conn->server_pcb);
     LWIP_ASSERT("error", err == ERR_OK);
@@ -565,6 +565,11 @@ lwiperf_tcp_err(void *arg, err_t err)
 {
   lwiperf_state_tcp_t *conn = (lwiperf_state_tcp_t *)arg;
   LWIP_UNUSED_ARG(err);
+
+  /* pcb is already deallocated, prevent double-free */
+  conn->conn_pcb = NULL;
+  conn->server_pcb = NULL;
+
   lwiperf_tcp_close(conn, LWIPERF_TCP_ABORTED_REMOTE);
 }
 

connectivity/mbedtls/source/ecp_curves.c

@@ -770,6 +770,8 @@ int mbedtls_ecp_group_load( mbedtls_ecp_group *grp, mbedtls_ecp_group_id id )
     ECP_VALIDATE_RET( grp != NULL );
     mbedtls_ecp_group_free( grp );
 
+    mbedtls_ecp_group_init( grp );
+
     grp->id = id;
 
     switch( id )

drivers/include/drivers/PwmOut.h

@@ -133,8 +133,15 @@ class PwmOut {
 
     /** Read the PWM pulsewidth
      *  @returns
-     *   The PWM pulsewith, specified in microseconds (int)
+     *   The PWM pulsewidth, specified in microseconds (int)
      */
+    int read_pulsewidth_us();
+
+    /** Read the PWM pulsewidth
+     *  @returns
+     *   The PWM pulsewidth, specified in microseconds (int)
+     */
+    MBED_DEPRECATED("use read_pulsewidth_us() instead")
     int read_pulsewitdth_us();
 
     /** Suspend PWM operation

drivers/source/PwmOut.cpp

@@ -113,14 +113,19 @@ void PwmOut::pulsewidth_us(int us)
     core_util_critical_section_exit();
 }
 
-int PwmOut::read_pulsewitdth_us()
+int PwmOut::read_pulsewidth_us()
 {
     core_util_critical_section_enter();
     auto val = pwmout_read_pulsewidth_us(&_pwm);
     core_util_critical_section_exit();
     return val;
 }
 
+int PwmOut::read_pulsewitdth_us()
+{
+    return read_pulsewidth_us();
+}
+
 void PwmOut::suspend()
 {
     core_util_critical_section_enter();

hal/include/hal/pwmout_api.h

@@ -158,7 +158,7 @@ void pwmout_pulsewidth_us(pwmout_t *obj, int us);
 /** Read the PWM pulsewidth specified in microseconds
  *
  * @param obj The pwmout object
- * @return A int output pulsewitdth
+ * @return A int output pulsewidth
  */
 int pwmout_read_pulsewidth_us(pwmout_t *obj);
 

platform/tests/UNITTESTS/doubles/CMakeLists.txt

@@ -32,6 +32,7 @@ target_sources(mbed-stubs-platform
         nvic_wrapper_stub.c
         randLIB_stub.c
         randLIB_stub.cpp
+        ../../../source/SingletonPtr.cpp
 )
 target_include_directories(mbed-stubs-platform
     PUBLIC

storage/filesystem/fat/source/FATFileSystem.cpp

@@ -755,6 +755,7 @@ int FATFileSystem::file_truncate(fs_file_t file, off_t length)
         return fat_error_remap(res);
     }
 
+    unlock();
     return 0;
 }