Ram Gandikota
FRDM K64F Metronome
Diff: mbed-client/source/m2minterfaceimpl.cpp
- Revision:
- 0:a2cb7295a1f7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-client/source/m2minterfaceimpl.cpp Sun May 14 18:35:07 2017 +0000
@@ -0,0 +1,1036 @@
+/*
+ * Copyright (c) 2015 ARM Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include "include/m2minterfaceimpl.h"
+#include "include/eventdata.h"
+#include "mbed-client/m2minterfaceobserver.h"
+#include "mbed-client/m2mconnectionhandler.h"
+#include "mbed-client/m2mconnectionsecurity.h"
+#include "include/m2mnsdlinterface.h"
+#include "include/nsdlaccesshelper.h"
+#include "mbed-client/m2msecurity.h"
+#include "mbed-client/m2mconstants.h"
+#include "mbed-client/m2mtimer.h"
+#include "mbed-trace/mbed_trace.h"
+
+#include <stdlib.h>
+
+#define TRACE_GROUP "mClt"
+
+#define RESOLVE_SEC_MODE(mode) ((mode == M2MInterface::TCP || mode == M2MInterface::TCP_QUEUE) ? M2MConnectionSecurity::TLS : M2MConnectionSecurity::DTLS)
+
+M2MInterfaceImpl::M2MInterfaceImpl(M2MInterfaceObserver& observer,
+ const String &ep_name,
+ const String &ep_type,
+ const int32_t l_time,
+ const uint16_t listen_port,
+ const String &dmn,
+ M2MInterface::BindingMode mode,
+ M2MInterface::NetworkStack stack,
+ const String &con_addr)
+: _event_data(NULL),
+ _bootstrap_timer(NULL),
+ _server_port(0),
+ _listen_port(listen_port),
+ _endpoint_type(ep_type),
+ _domain( dmn),
+ _life_time(l_time),
+ _context_address(con_addr),
+ _register_server(NULL),
+ _queue_sleep_timer(*this),
+ _retry_timer(*this),
+ _callback_handler(NULL),
+ _max_states( STATE_MAX_STATES ),
+ _event_ignored(false),
+ _event_generated(false),
+ _reconnecting(false),
+ _retry_timer_expired(false),
+ _bootstrapped(true), // True as default to get it working with connector only configuration
+ _current_state(0),
+ _retry_count(0),
+ _binding_mode(mode),
+ _observer(observer),
+ _security_connection( new M2MConnectionSecurity( RESOLVE_SEC_MODE(mode) )),
+ _connection_handler(*this, _security_connection, mode, stack),
+ _nsdl_interface(*this),
+ _security(NULL)
+{
+ tr_debug("M2MInterfaceImpl::M2MInterfaceImpl() -IN");
+ _nsdl_interface.create_endpoint(ep_name,
+ _endpoint_type,
+ _life_time,
+ _domain,
+ (uint8_t)_binding_mode & 0x07, // nsdl binding mode is only 3 least significant bits
+ _context_address);
+
+ //Here we must use TCP still
+ __connection_handler = &_connection_handler;
+ _connection_handler.bind_connection(_listen_port);
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ _bootstrap_timer = new M2MTimer(*this);
+#endif
+ tr_debug("M2MInterfaceImpl::M2MInterfaceImpl() -OUT");
+}
+
+
+M2MInterfaceImpl::~M2MInterfaceImpl()
+{
+ tr_debug("M2MInterfaceImpl::~M2MInterfaceImpl() - IN");
+ _connection_handler.stop_listening();
+ delete _bootstrap_timer;
+ _security_connection = NULL;
+ tr_debug("M2MInterfaceImpl::~M2MInterfaceImpl() - OUT");
+}
+
+void M2MInterfaceImpl::bootstrap(M2MSecurity *security)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::bootstrap(M2MSecurity *security) - IN");
+ if(!security) {
+ _observer.error(M2MInterface::InvalidParameters);
+ return;
+ }
+ // Transition to a new state based upon
+ // the current state of the state machine
+ M2MSecurityData* data = new M2MSecurityData();
+ data->_object = security;
+ BEGIN_TRANSITION_MAP // - Current State -
+ TRANSITION_MAP_ENTRY (STATE_BOOTSTRAP) // state_idle
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state__bootstrap_address_resolved
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_resource_created
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_wait
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrapped
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register_address_resolved
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_registered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_update_registration
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregister
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregistered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_sending_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_sent
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_received
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_processing_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_processed
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_waiting
+ END_TRANSITION_MAP(data)
+ if(_event_ignored) {
+ _event_ignored = false;
+ _observer.error(M2MInterface::NotAllowed);
+ }
+ tr_debug("M2MInterfaceImpl::bootstrap(M2MSecurity *security) - OUT");
+#else
+ _observer.error(M2MInterface::NotAllowed);
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::cancel_bootstrap()
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+//TODO: Do we need this ?
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::register_object(M2MSecurity *security, const M2MObjectList &object_list)
+{
+ tr_debug("M2MInterfaceImpl::register_object - IN");
+ if(!security) {
+ _observer.error(M2MInterface::InvalidParameters);
+ return;
+ }
+ // Transition to a new state based upon
+ // the current state of the state machine
+ //TODO: manage register object in a list.
+ _register_server = security;
+ M2MRegisterData *data = new M2MRegisterData();
+ data->_object = security;
+ data->_object_list = object_list;
+ BEGIN_TRANSITION_MAP // - Current State -
+ TRANSITION_MAP_ENTRY (STATE_REGISTER) // state_idle
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state__bootstrap_address_resolved
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_resource_created
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_wait
+ TRANSITION_MAP_ENTRY (STATE_REGISTER) // state_bootstrapped
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register_address_resolved
+ TRANSITION_MAP_ENTRY (STATE_REGISTER) // state_registered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_update_registration
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregister
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregistered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_sending_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_sent
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_received
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_processing_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_processed
+ TRANSITION_MAP_ENTRY (STATE_REGISTER) // state_waiting
+ END_TRANSITION_MAP(data)
+ if(_event_ignored) {
+ _event_ignored = false;
+ _observer.error(M2MInterface::NotAllowed);
+ }
+ tr_debug("M2MInterfaceImpl::register_object - OUT");
+}
+
+void M2MInterfaceImpl::update_registration(M2MSecurity *security_object, const uint32_t lifetime)
+{
+ tr_debug("M2MInterfaceImpl::update_registration(M2MSecurity *security_object, const uint32_t lifetime)");
+ M2MUpdateRegisterData *data = new M2MUpdateRegisterData();
+ data->_object = security_object;
+ data->_lifetime = lifetime;
+ start_register_update(data);
+}
+
+void M2MInterfaceImpl::update_registration(M2MSecurity *security_object,
+ const M2MObjectList &object_list,
+ const uint32_t lifetime)
+{
+ tr_debug("M2MInterfaceImpl::update_registration(M2MSecurity *security_object, const M2MObjectList &object_list, const uint32_t lifetime)");
+ M2MUpdateRegisterData *data = new M2MUpdateRegisterData();
+ data->_object = security_object;
+ data->_lifetime = lifetime;
+ data->_object_list = object_list;
+ start_register_update(data);
+}
+
+void M2MInterfaceImpl::unregister_object(M2MSecurity* /*security*/)
+{
+ tr_debug("M2MInterfaceImpl::unregister_object - IN");
+ tr_debug("M2MInterfaceImpl::unregister_object - current state %d", _current_state);
+ // Transition to a new state based upon
+ // the current state of the state machine
+ BEGIN_TRANSITION_MAP // - Current State -
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_idle
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state__bootstrap_address_resolved
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_resource_created
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_wait
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrapped
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register_address_resolved
+ TRANSITION_MAP_ENTRY (STATE_UNREGISTER) // state_registered
+ TRANSITION_MAP_ENTRY (STATE_UNREGISTER) // state_update_registration
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregister
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregistered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_sending_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_sent
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_received
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_processing_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_processed
+ TRANSITION_MAP_ENTRY (STATE_UNREGISTER) // state_waiting
+ END_TRANSITION_MAP(NULL)
+ if(_event_ignored) {
+ _event_ignored = false;
+ _observer.error(M2MInterface::NotAllowed);
+ }
+ tr_debug("M2MInterfaceImpl::unregister_object - OUT");
+}
+
+void M2MInterfaceImpl::set_queue_sleep_handler(callback_handler handler)
+{
+ tr_debug("M2MInterfaceImpl::set_queue_sleep_handler()");
+ _callback_handler = handler;
+}
+
+void M2MInterfaceImpl::set_random_number_callback(random_number_cb callback)
+{
+ if(_security_connection) {
+ _security_connection->set_random_number_callback(callback);
+ }
+}
+
+void M2MInterfaceImpl::set_entropy_callback(entropy_cb callback)
+{
+ if(_security_connection) {
+ _security_connection->set_entropy_callback(callback);
+ }
+}
+
+void M2MInterfaceImpl::set_platform_network_handler(void *handler)
+{
+ tr_debug("M2MInterfaceImpl::set_platform_network_handler()");
+ _connection_handler.set_platform_network_handler(handler);
+}
+
+void M2MInterfaceImpl::coap_message_ready(uint8_t *data_ptr,
+ uint16_t data_len,
+ sn_nsdl_addr_s *address_ptr)
+{
+ tr_debug("M2MInterfaceImpl::coap_message_ready");
+ if (_current_state != STATE_IDLE) {
+ internal_event(STATE_SENDING_COAP_DATA);
+ if(!_connection_handler.send_data(data_ptr,data_len,address_ptr)) {
+ internal_event( STATE_IDLE);
+ tr_error("M2MInterfaceImpl::coap_message_ready() - M2MInterface::NetworkError");
+ if (!_reconnecting) {
+ _observer.error(M2MInterface::NetworkError);
+ }
+ }
+ }
+}
+
+void M2MInterfaceImpl::client_registered(M2MServer *server_object)
+{
+ tr_debug("M2MInterfaceImpl::client_registered");
+ _retry_count = 0;
+ internal_event(STATE_REGISTERED);
+ //Inform client is registered.
+ //TODO: manage register object in a list.
+ _observer.object_registered(_register_server,*server_object);
+}
+
+void M2MInterfaceImpl::registration_updated(const M2MServer &server_object)
+{
+ tr_debug("M2MInterfaceImpl::registration_updated");
+ internal_event(STATE_REGISTERED);
+ _observer.registration_updated(_register_server,server_object);
+}
+
+void M2MInterfaceImpl::registration_error(uint8_t error_code, bool retry)
+{
+ tr_debug("M2MInterfaceImpl::registration_error code [%d]", error_code);
+ // Try to register again
+ if (retry) {
+ socket_error(M2MConnectionHandler::SOCKET_SEND_ERROR);
+ } else {
+ internal_event(STATE_IDLE);
+ _observer.error((M2MInterface::Error)error_code);
+ }
+}
+
+void M2MInterfaceImpl::client_unregistered()
+{
+ tr_debug("M2MInterfaceImpl::client_unregistered()");
+ internal_event(STATE_UNREGISTERED);
+ //TODO: manage register object in a list.
+ _observer.object_unregistered(_register_server);
+}
+
+void M2MInterfaceImpl::bootstrap_done(M2MSecurity *security_object)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::bootstrap_done");
+ _retry_count = 0;
+ _reconnecting = false;
+ _bootstrapped = true;
+ _bootstrap_timer->stop_timer();
+ internal_event(STATE_BOOTSTRAPPED);
+ _observer.bootstrap_done(security_object);
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::bootstrap_wait(M2MSecurity *security_object)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::bootstrap_wait");
+ _security = security_object;
+ internal_event(STATE_BOOTSTRAP_WAIT);
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::bootstrap_error()
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::bootstrap_error()");
+ _bootstrapped = false;
+ _bootstrap_timer->stop_timer();
+ internal_event(STATE_IDLE);
+ _observer.error(M2MInterface::BootstrapFailed);
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::coap_data_processed()
+{
+ tr_debug("M2MInterfaceImpl::coap_data_processed()");
+ internal_event(STATE_COAP_DATA_PROCESSED);
+}
+
+void M2MInterfaceImpl::value_updated(M2MBase *base)
+{
+ tr_debug("M2MInterfaceImpl::value_updated");
+ if(base) {
+ M2MBase::BaseType type = base->base_type();
+ _observer.value_updated(base, type);
+ }
+}
+
+void M2MInterfaceImpl::data_available(uint8_t* data,
+ uint16_t data_size,
+ const M2MConnectionObserver::SocketAddress &address)
+{
+ tr_debug("M2MInterfaceImpl::data_available");
+ ReceivedData *event = new ReceivedData();
+ event->_data = data;
+ event->_size = data_size;
+ event->_address = &address;
+ internal_event(STATE_COAP_DATA_RECEIVED, event);
+}
+
+void M2MInterfaceImpl::socket_error(uint8_t error_code, bool retry)
+{
+ tr_debug("M2MInterfaceImpl::socket_error: (%d), retry (%d), reconnecting (%d)", error_code, retry, _reconnecting);
+#if MBED_CLIENT_RECONNECTION_LOOP < 1
+ if (!_retry_timer_expired && _reconnecting) {
+ tr_debug("M2MInterfaceImpl::socket_error - retry timer running - return");
+ return;
+ }
+#endif
+
+ M2MInterface::Error error = M2MInterface::ErrorNone;
+ switch (error_code) {
+ case M2MConnectionHandler::SSL_CONNECTION_ERROR:
+ error = M2MInterface::SecureConnectionFailed;
+ break;
+ case M2MConnectionHandler::DNS_RESOLVING_ERROR:
+ error = M2MInterface::DnsResolvingFailed;
+ break;
+ case M2MConnectionHandler::SOCKET_READ_ERROR:
+ error = M2MInterface::NetworkError;
+ break;
+ case M2MConnectionHandler::SOCKET_SEND_ERROR:
+ error = M2MInterface::NetworkError;
+ break;
+ case M2MConnectionHandler::SSL_HANDSHAKE_ERROR:
+ error = M2MInterface::SecureConnectionFailed;
+ break;
+ case M2MConnectionHandler::SOCKET_ABORT:
+ error = M2MInterface::NetworkError;
+ break;
+ default:
+ break;
+ }
+
+ // Try to do reconnecting
+ if (retry) {
+ if (_retry_count < MBED_CLIENT_RECONNECTION_COUNT) {
+ _retry_count++;
+ }
+#if MBED_CLIENT_RECONNECTION_LOOP > 0
+ else {
+ tr_debug("M2MInterfaceImpl::socket_error - start again");
+ _retry_count = 1;
+ _observer.error(error);
+ }
+#else
+ else {
+ tr_debug("M2MInterfaceImpl::socket_error - no more retries");
+ _connection_handler.stop_listening();
+ _retry_timer.stop_timer();
+ retry = false;
+ }
+#endif
+ if (retry) {
+ internal_event(STATE_IDLE);
+ _reconnecting = true;
+ _connection_handler.stop_listening();
+ int retry_time = MBED_CLIENT_RECONNECTION_INTERVAL *
+ MBED_CLIENT_RECONNECTION_COUNT * _retry_count * 1000;
+ _retry_timer_expired = false;
+ _retry_timer.start_timer(retry_time,
+ M2MTimerObserver::RetryTimer);
+ tr_debug("M2MInterfaceImpl::socket_error - reconnecting in %d(s), count %d/%d", retry_time / 1000,
+ _retry_count, MBED_CLIENT_RECONNECTION_COUNT);
+ }
+ }
+ // Inform application
+ if (!retry && M2MInterface::ErrorNone != error) {
+ tr_debug("M2MInterfaceImpl::socket_error - send error to application");
+ _connection_handler.stop_listening();
+ _retry_timer.stop_timer();
+ _retry_count = 0;
+ _reconnecting = false;
+ _observer.error(error);
+ internal_event(STATE_IDLE);
+ }
+}
+
+void M2MInterfaceImpl::address_ready(const M2MConnectionObserver::SocketAddress &address,
+ M2MConnectionObserver::ServerType server_type,
+ const uint16_t server_port)
+{
+ tr_debug("M2MInterfaceImpl::address_ready");
+ ResolvedAddressData *data = new ResolvedAddressData();
+ data->_address = &address;
+ data->_port = server_port;
+ if( M2MConnectionObserver::Bootstrap == server_type) {
+ tr_debug("M2MInterfaceImpl::address_ready() Server Type Bootstrap");
+ internal_event(STATE_BOOTSTRAP_ADDRESS_RESOLVED, data);
+ } else {
+ tr_debug("M2MInterfaceImpl::address_ready() Server Type LWM2M");
+ internal_event(STATE_REGISTER_ADDRESS_RESOLVED, data);
+ }
+}
+
+void M2MInterfaceImpl::data_sent()
+{
+ tr_debug("M2MInterfaceImpl::data_sent()");
+ if(_binding_mode == M2MInterface::UDP_QUEUE ||
+ _binding_mode == M2MInterface::TCP_QUEUE ||
+ _binding_mode == M2MInterface::SMS_QUEUE ||
+ _binding_mode == M2MInterface::UDP_SMS_QUEUE) {
+ if(_callback_handler) {
+ _queue_sleep_timer.stop_timer();
+ _queue_sleep_timer.start_timer(MBED_CLIENT_RECONNECTION_COUNT*MBED_CLIENT_RECONNECTION_INTERVAL*1000,
+ M2MTimerObserver::QueueSleep);
+ }
+ }
+ if (_current_state == STATE_BOOTSTRAP_WAIT) {
+ // For bootstrap we need to call bootstrap_done callback ONLY after we have
+ // sent the last ACK and ended in STATE_BOOTSTRAP_WAIT
+ M2MSecurity *sec = _security;
+ _security = NULL;
+ bootstrap_done(sec);
+ }
+ else {
+ internal_event(STATE_COAP_DATA_SENT);
+ }
+}
+
+void M2MInterfaceImpl::timer_expired(M2MTimerObserver::Type type)
+{
+ tr_debug("M2MInterfaceImpl::timer_expired()");
+ if(M2MTimerObserver::QueueSleep == type) {
+ if(_callback_handler) {
+ _callback_handler();
+ }
+ }
+ else if (M2MTimerObserver::RetryTimer == type) {
+ _retry_timer_expired = true;
+ if (_bootstrapped) {
+ internal_event(STATE_REGISTER);
+ } else {
+ internal_event(STATE_BOOTSTRAP);
+ }
+ }
+ else if (M2MTimerObserver::BootstrapTimer == type) {
+ bootstrap_error();
+ }
+}
+
+// state machine sits here.
+void M2MInterfaceImpl::state_idle(EventData* /*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_idle");
+ _nsdl_interface.stop_timers();
+}
+
+void M2MInterfaceImpl::state_bootstrap(EventData *data)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::state_bootstrap");
+ // Start with bootstrapping preparation
+ _bootstrapped = false;
+ M2MSecurityData *event = static_cast<M2MSecurityData *> (data);
+ if(!_security) {
+ M2MInterface::Error error = M2MInterface::InvalidParameters;
+ if (event) {
+ _security = event->_object;
+ if(_security) {
+ if(M2MSecurity::Bootstrap == _security->server_type()) {
+ tr_debug("M2MInterfaceImpl::state_bootstrap - server_type : M2MSecurity::Bootstrap");
+ String server_address = _security->resource_value_string(M2MSecurity::M2MServerUri);
+ tr_debug("M2MInterfaceImpl::state_bootstrap - server_address %s", server_address.c_str());
+ _bootstrap_timer->start_timer(MBED_CLIENT_RECONNECTION_COUNT * MBED_CLIENT_RECONNECTION_INTERVAL * 8 * 1000,
+ M2MTimerObserver::BootstrapTimer);
+ String coap;
+ if(server_address.compare(0,sizeof(COAP)-1,COAP) == 0) {
+ coap = COAP;
+ }
+ else if(server_address.compare(0,sizeof(COAPS)-1,COAPS) == 0) {
+ _security->resource_value_int(M2MSecurity::SecurityMode) != M2MSecurity::NoSecurity ? coap = COAPS: coap = "";
+ }
+ if(!coap.empty()) {
+ server_address = server_address.substr(coap.size(),
+ server_address.size()-coap.size());
+
+ process_address(server_address, _server_ip_address, _server_port);
+
+ tr_debug("M2MInterfaceImpl::state_bootstrap - IP address %s , Port %d", _server_ip_address.c_str(), _server_port);
+ // If bind and resolving server address succeed then proceed else
+ // return error to the application and go to Idle state.
+ if(!_server_ip_address.empty()) {
+ error = M2MInterface::ErrorNone;
+ _connection_handler.resolve_server_address(_server_ip_address,
+ _server_port,
+ M2MConnectionObserver::Bootstrap,
+ _security);
+ }
+ }
+ }
+ }
+ }
+ if (error != M2MInterface::ErrorNone) {
+ tr_error("M2MInterfaceImpl::state_bootstrap - set error as M2MInterface::InvalidParameters");
+ internal_event(STATE_IDLE);
+ _observer.error(error);
+ }
+ } else {
+ _listen_port = rand() % 64511 + 1024;
+ _connection_handler.stop_listening();
+ _connection_handler.bind_connection(_listen_port);
+ _connection_handler.resolve_server_address(_server_ip_address,
+ _server_port,
+ M2MConnectionObserver::Bootstrap,
+ _security);
+ }
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::state_bootstrap_address_resolved( EventData *data)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::state_bootstrap_address_resolved");
+ if (data) {
+ ResolvedAddressData *event = static_cast<ResolvedAddressData *> (data);
+ sn_nsdl_addr_s address;
+
+ M2MInterface::NetworkStack stack = event->_address->_stack;
+
+ if(M2MInterface::LwIP_IPv4 == stack) {
+ tr_debug("M2MInterfaceImpl::state_bootstrap_address_resolved : IPv4 address");
+ address.type = SN_NSDL_ADDRESS_TYPE_IPV4;
+ } else if((M2MInterface::LwIP_IPv6 == stack) ||
+ (M2MInterface::Nanostack_IPv6 == stack)) {
+ tr_debug("M2MInterfaceImpl::state_bootstrap_address_resolved : IPv6 address");
+ address.type = SN_NSDL_ADDRESS_TYPE_IPV6;
+ }
+ address.port = event->_port;
+ address.addr_ptr = (uint8_t*)event->_address->_address;
+ address.addr_len = event->_address->_length;
+ _connection_handler.start_listening_for_data();
+
+ // Include domain id to be part of endpoint name
+ StringBuffer<M2MBase::MAX_PATH_SIZE> new_ep_name;
+
+ if(!new_ep_name.ensure_space(_nsdl_interface.endpoint_name().size() + 1))
+ {
+ tr_error("MM2MInterfaceImpl::state_bootstrap_address_resolved : name too long");
+ _observer.error(M2MInterface::InvalidParameters);
+ return;
+ }
+
+ new_ep_name.append(_nsdl_interface.endpoint_name().c_str());
+
+ if (!_domain.empty()) {
+
+ if(!new_ep_name.ensure_space(_nsdl_interface.endpoint_name().size() + 1 + _domain.size() + 1))
+ {
+ tr_error("MM2MInterfaceImpl::state_bootstrap_address_resolved : name + domain too long");
+ _observer.error(M2MInterface::InvalidParameters);
+ return;
+ }
+
+ new_ep_name.append('@');
+ new_ep_name.append(_domain.c_str());
+
+ }
+ if(_nsdl_interface.create_bootstrap_resource(&address, new_ep_name.c_str())) {
+ tr_debug("M2MInterfaceImpl::state_bootstrap_address_resolved : create_bootstrap_resource - success");
+ internal_event(STATE_BOOTSTRAP_RESOURCE_CREATED);
+ } else{
+ // If resource creation fails then inform error to application
+ tr_error("M2MInterfaceImpl::state_bootstrap_address_resolved : M2MInterface::InvalidParameters");
+ internal_event(STATE_IDLE);
+ _observer.error(M2MInterface::InvalidParameters);
+ }
+ }
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::state_bootstrap_resource_created( EventData */*data*/)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::state_bootstrap_resource_created");
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::state_bootstrapped( EventData */*data*/)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MInterfaceImpl::state_bootstrapped");
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+void M2MInterfaceImpl::state_register(EventData *data)
+{
+ tr_debug("M2MInterfaceImpl::state_register");
+ M2MRegisterData *event = static_cast<M2MRegisterData *> (data);
+ if (!_security) {
+ M2MInterface::Error error = M2MInterface::InvalidParameters;
+ // Start with registration preparation
+ if(event) {
+ _security = event->_object;
+ if(_security) {
+ if(M2MSecurity::M2MServer == _security->server_type()) {
+ tr_debug("M2MInterfaceImpl::state_register - server_type : M2MSecurity::M2MServer");
+ if(_nsdl_interface.create_nsdl_list_structure(event->_object_list)) {
+ tr_debug("M2MInterfaceImpl::state_register - create_nsdl_list_structure - success");
+ // If the nsdl resource structure is created successfully
+ String server_address = _security->resource_value_string(M2MSecurity::M2MServerUri);
+ tr_debug("M2MInterfaceImpl::state_register - server_address %s", server_address.c_str());
+ String coap;
+ if(server_address.compare(0,sizeof(COAP)-1,COAP) == 0) {
+ coap = COAP;
+ }
+ else if(server_address.compare(0,sizeof(COAPS)-1,COAPS) == 0) {
+ _security->resource_value_int(M2MSecurity::SecurityMode) != M2MSecurity::NoSecurity ? coap = COAPS: coap = "";
+ }
+ if(!coap.empty()) {
+ server_address = server_address.substr(coap.size(),
+ server_address.size() - coap.size());
+ process_address(server_address, _server_ip_address, _server_port);
+
+ tr_debug("M2MInterfaceImpl::state_register - IP address %s , Port %d", _server_ip_address.c_str(), _server_port);
+ if(!_server_ip_address.empty()) {
+ // Connection related errors are coming through callback
+ error = M2MInterface::ErrorNone;
+ _connection_handler.resolve_server_address(_server_ip_address,_server_port,
+ M2MConnectionObserver::LWM2MServer,
+ _security);
+ }
+ }
+ }
+ }
+ }
+ }
+ if (error != M2MInterface::ErrorNone) {
+ tr_error("M2MInterfaceImpl::state_register - set error as M2MInterface::InvalidParameters");
+ internal_event(STATE_IDLE);
+ _observer.error(error);
+ }
+ } else {
+ _listen_port = rand() % 64511 + 1024;
+ _connection_handler.stop_listening();
+ if (event) {
+ _nsdl_interface.create_nsdl_list_structure(event->_object_list);
+ }
+ _connection_handler.bind_connection(_listen_port);
+ _connection_handler.resolve_server_address(_server_ip_address,_server_port,
+ M2MConnectionObserver::LWM2MServer,
+ _security);
+ }
+}
+
+void M2MInterfaceImpl::process_address(const String& server_address, String& ip_address, uint16_t& port) {
+
+ int colonFound = server_address.find_last_of(':'); //10
+ if(colonFound != -1) {
+ ip_address = server_address.substr(0,colonFound);
+ port = atoi(server_address.substr(colonFound+1,
+ server_address.size()-ip_address.size()).c_str());
+ colonFound = ip_address.find_last_of(']');
+ if(ip_address.compare(0,1,"[") == 0) {
+ if(colonFound == -1) {
+ ip_address.clear();
+ } else {
+ ip_address = ip_address.substr(1,colonFound-1);
+ }
+ } else if(colonFound != -1) {
+ ip_address.clear();
+ }
+ }
+}
+
+void M2MInterfaceImpl::state_register_address_resolved( EventData *data)
+{
+ tr_debug("M2MInterfaceImpl::state_register_address_resolved");
+ if(data) {
+ ResolvedAddressData *event = static_cast<ResolvedAddressData *> (data);
+
+ sn_nsdl_addr_type_e address_type = SN_NSDL_ADDRESS_TYPE_IPV6;
+
+ M2MInterface::NetworkStack stack = event->_address->_stack;
+
+ if(M2MInterface::LwIP_IPv4 == stack) {
+ tr_debug("M2MInterfaceImpl::state_register_address_resolved : IPv4 address");
+ address_type = SN_NSDL_ADDRESS_TYPE_IPV4;
+ } else if((M2MInterface::LwIP_IPv6 == stack) ||
+ (M2MInterface::Nanostack_IPv6 == stack)) {
+ tr_debug("M2MInterfaceImpl::state_register_address_resolved : IPv6 address");
+ address_type = SN_NSDL_ADDRESS_TYPE_IPV6;
+ }
+ _connection_handler.start_listening_for_data();
+ if(!_nsdl_interface.send_register_message((uint8_t*)event->_address->_address,event->_address->_length,
+ event->_port, address_type)) {
+ // If resource creation fails then inform error to application
+ tr_error("M2MInterfaceImpl::state_register_address_resolved : M2MInterface::InvalidParameters");
+ internal_event(STATE_IDLE);
+ _observer.error(M2MInterface::InvalidParameters);
+ }
+ }
+}
+
+void M2MInterfaceImpl::state_registered( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_registered");
+ _retry_count = 0;
+ _reconnecting = false;
+}
+
+void M2MInterfaceImpl::state_update_registration(EventData *data)
+{
+ tr_debug("M2MInterfaceImpl::state_update_registration");
+ if(data) {
+ M2MUpdateRegisterData *event = static_cast<M2MUpdateRegisterData *> (data);
+ // Create new resources if any
+ if (!event->_object_list.empty()) {
+ _nsdl_interface.create_nsdl_list_structure(event->_object_list);
+ }
+ _nsdl_interface.send_update_registration(event->_lifetime);
+ }
+}
+
+void M2MInterfaceImpl::state_unregister( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_unregister");
+ internal_event(STATE_SENDING_COAP_DATA);
+ if(!_nsdl_interface.send_unregister_message()) {
+ tr_error("M2MInterfaceImpl::state_unregister : M2MInterface::NotRegistered");
+ internal_event(STATE_IDLE);
+ _observer.error(M2MInterface::NotRegistered);
+ }
+}
+
+void M2MInterfaceImpl::state_unregistered( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_unregistered");
+ internal_event(STATE_IDLE);
+}
+
+void M2MInterfaceImpl::state_sending_coap_data( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_sending_coap_data");
+ internal_event(STATE_WAITING);
+}
+
+void M2MInterfaceImpl::state_coap_data_sent( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_coap_data_sent");
+ internal_event(STATE_WAITING);
+}
+
+void M2MInterfaceImpl::state_coap_data_received( EventData *data)
+{
+ tr_debug("M2MInterfaceImpl::state_coap_data_received");
+ if(data) {
+ ReceivedData *event = static_cast<ReceivedData*> (data);
+ sn_nsdl_addr_s address;
+
+ M2MInterface::NetworkStack stack = event->_address->_stack;
+
+ if(M2MInterface::LwIP_IPv4 == stack) {
+ tr_debug("M2MInterfaceImpl::state_coap_data_received : IPv4 address");
+ address.type = SN_NSDL_ADDRESS_TYPE_IPV4;
+ address.addr_len = 4;
+ } else if((M2MInterface::LwIP_IPv6 == stack) ||
+ (M2MInterface::Nanostack_IPv6 == stack)) {
+ tr_debug("M2MInterfaceImpl::state_coap_data_received : IPv6 address");
+ address.type = SN_NSDL_ADDRESS_TYPE_IPV6;
+ address.addr_len = 16;
+ }
+ address.port = event->_address->_port;
+ address.addr_ptr = (uint8_t*)event->_address->_address;
+ address.addr_len = event->_address->_length;
+
+ // Process received data
+ internal_event(STATE_PROCESSING_COAP_DATA);
+ if(!_nsdl_interface.process_received_data(event->_data,
+ event->_size,
+ &address)) {
+ tr_error("M2MInterfaceImpl::state_coap_data_received : M2MInterface::ResponseParseFailed");
+ _observer.error(M2MInterface::ResponseParseFailed);
+ }
+ }
+}
+
+void M2MInterfaceImpl::state_processing_coap_data( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_processing_coap_data");
+ internal_event(STATE_WAITING);
+}
+
+void M2MInterfaceImpl::state_coap_data_processed( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_coap_data_processed");
+ internal_event(STATE_WAITING);
+}
+
+void M2MInterfaceImpl::state_waiting( EventData */*data*/)
+{
+ tr_debug("M2MInterfaceImpl::state_waiting");
+}
+
+// generates an external event. called once per external event
+// to start the state machine executing
+void M2MInterfaceImpl::external_event(uint8_t new_state,
+ EventData* p_data)
+{
+ tr_debug("M2MInterfaceImpl::external_event : new state %d", new_state);
+ // if we are supposed to ignore this event
+ if (new_state == EVENT_IGNORED) {
+ tr_debug("M2MInterfaceImpl::external_event : new state is EVENT_IGNORED");
+ // just delete the event data, if any
+ if (p_data) {
+ delete p_data;
+ p_data = NULL;
+ }
+ _event_ignored = true;
+ }
+ else {
+ tr_debug("M2MInterfaceImpl::external_event : handle new state");
+ // generate the event and execute the state engine
+ internal_event(new_state, p_data);
+ }
+}
+
+// generates an internal event. called from within a state
+// function to transition to a new state
+void M2MInterfaceImpl::internal_event(uint8_t new_state,
+ EventData* p_data)
+{
+ tr_debug("M2MInterfaceImpl::internal_event : new state %d", new_state);
+ _event_data = p_data;
+ _event_generated = true;
+ _current_state = new_state;
+ state_engine();
+}
+
+// the state engine executes the state machine states
+void M2MInterfaceImpl::state_engine (void)
+{
+ tr_debug("M2MInterfaceImpl::state_engine");
+ EventData* p_data_temp = NULL;
+
+ // while events are being generated keep executing states
+ while (_event_generated) {
+ p_data_temp = _event_data; // copy of event data pointer
+ _event_data = NULL; // event data used up, reset ptr
+ _event_generated = false; // event used up, reset flag
+
+ assert(_current_state < _max_states);
+
+ state_function( _current_state, p_data_temp );
+
+ // if event data was used, then delete it
+ if (p_data_temp) {
+ delete p_data_temp;
+ p_data_temp = NULL;
+ }
+ }
+}
+
+void M2MInterfaceImpl::state_function( uint8_t current_state, EventData* data )
+{
+ switch( current_state ) {
+ case STATE_IDLE:
+ M2MInterfaceImpl::state_idle(data);
+ break;
+ case STATE_BOOTSTRAP:
+ #ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ M2MInterfaceImpl::state_bootstrap(data);
+ #endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ break;
+ case STATE_BOOTSTRAP_ADDRESS_RESOLVED:
+ #ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ M2MInterfaceImpl::state_bootstrap_address_resolved(data);
+ #endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ break;
+ case STATE_BOOTSTRAP_RESOURCE_CREATED:
+ #ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ M2MInterfaceImpl::state_bootstrap_resource_created(data);
+ #endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ break;
+ case STATE_BOOTSTRAP_WAIT:
+ #ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ // Do nothing, we're just waiting for data_sent callback
+ #endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ break;
+ case STATE_BOOTSTRAPPED:
+ #ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ M2MInterfaceImpl::state_bootstrapped(data);
+ #endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ break;
+ case STATE_REGISTER:
+ M2MInterfaceImpl::state_register(data);
+ break;
+ case STATE_REGISTER_ADDRESS_RESOLVED:
+ M2MInterfaceImpl::state_register_address_resolved(data);
+ break;
+ case STATE_REGISTERED:
+ M2MInterfaceImpl::state_registered(data);
+ break;
+ case STATE_UPDATE_REGISTRATION:
+ M2MInterfaceImpl::state_update_registration(data);
+ break;
+ case STATE_UNREGISTER:
+ M2MInterfaceImpl::state_unregister(data);
+ break;
+ case STATE_UNREGISTERED:
+ M2MInterfaceImpl::state_unregistered(data);
+ break;
+ case STATE_SENDING_COAP_DATA:
+ M2MInterfaceImpl::state_sending_coap_data(data);
+ break;
+ case STATE_COAP_DATA_SENT:
+ M2MInterfaceImpl::state_coap_data_sent(data);
+ break;
+ case STATE_COAP_DATA_RECEIVED:
+ M2MInterfaceImpl::state_coap_data_received(data);
+ break;
+ case STATE_PROCESSING_COAP_DATA:
+ M2MInterfaceImpl::state_processing_coap_data(data);
+ break;
+ case STATE_COAP_DATA_PROCESSED:
+ M2MInterfaceImpl::state_coap_data_processed(data);
+ break;
+ case STATE_WAITING:
+ M2MInterfaceImpl::state_waiting(data);
+ break;
+ }
+}
+
+void M2MInterfaceImpl::start_register_update(M2MUpdateRegisterData *data) {
+ tr_debug("M2MInterfaceImpl::start_register_update - IN");
+ if(!data || (data->_lifetime != 0 && (data->_lifetime < MINIMUM_REGISTRATION_TIME))) {
+ _observer.error(M2MInterface::InvalidParameters);
+ }
+ BEGIN_TRANSITION_MAP // - Current State -
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_idle
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state__bootstrap_address_resolved
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_resource_created
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrap_wait
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_bootstrapped
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_register_address_resolved
+ TRANSITION_MAP_ENTRY (STATE_UPDATE_REGISTRATION) // state_registered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_update_registration
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregister
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_unregistered
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_sending_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_sent
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_received
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_processing_coap_data
+ TRANSITION_MAP_ENTRY (EVENT_IGNORED) // state_coap_data_processed
+ TRANSITION_MAP_ENTRY (STATE_UPDATE_REGISTRATION) // state_waiting
+ END_TRANSITION_MAP(data)
+ if(_event_ignored) {
+ _event_ignored = false;
+ if (!_reconnecting)
+ _observer.error(M2MInterface::NotAllowed);
+ }
+}