[LITE-43] Implement Cloud service

Provides API for connect a device to the Cloud Interface.

Cloud Sample apps/cloud_linux.c
Cloud API: service/cloud/include/cloud.h

Limitations:
 * Cloud always try to connect to the Cloud Interface
 * Delays are not configurable (ping, publish resources, ...)
 * Sid isn't verified

Change-Id: I3faf440f0fd00648cf0e01f50763d80c785cd734
Signed-off-by: Jozef Kralik <jojo.lwin@gmail.com>

.gitignore

@@ -13,9 +13,17 @@ port/linux/multi_device_server
 port/linux/onboarding_tool
 port/linux/server_multithread_linux
 port/linux/client_multithread_linux
+port/linux/cloud_linux
+port/linux/cloud_linux_creds/
 port/linux/libiotivity-constrained-client.*
 port/linux/libiotivity-constrained-server.*
 port/linux/libiotivity-constrained-client-server.*
+port/linux/iotivity-constrained-cloud.pc
+port/linux/iotivity-constrained-cloud.a
+port/linux/iotivity-constrained-cloud.so
+port/linux/iotivity-constrained-rd-client.pc
+port/linux/iotivity-constrained-rd-client.a
+port/linux/iotivity-constrained-rd-client.so
 port/linux/iotivity-constrained-server.pc
 port/linux/iotivity-constrained-client.pc
 port/linux/iotivity-constrained-client-server.pc
@@ -40,10 +48,19 @@ port/openthread/output
 *.o
 *.cmd
 *.tmp
+*.gcda
+*.gcno
 .clang-format
 _clang-format
 port/linux/platformtest
 port/linux/storage_test
+port/linux/apitest
+port/linux/cloudaccesstest
+port/linux/messagingtest
+port/linux/rdclienttest
+port/linux/securitytest
+port/linux/simpleserver_pki
+port/linux/stapptest
 
 #creds files
 port/linux/client_creds
@@ -59,5 +76,9 @@ port/linux/multi_device_server_creds
 port/linux/server_multithread_linux_creds
 port/linux/client_multithread_linux_creds
 
+#service
+service/cloud-access/unittest/obj
+service/resource-directory/client/unittest/obj
+
 #vscode setting files
 .vscode
\ No newline at end of file

README.rst

@@ -142,6 +142,9 @@ port/<OS>/*
 apps/*
   contains sample OCF applications.
 
+service/*
+  contains OCF services
+
 Setup source tree
 -----------------
 
@@ -168,6 +171,9 @@ Add ``TCP=1`` to include support for TCP endpoints and CoAP over TCP (RFC 8323).
 Add ``IPV4=1`` to include IPv4 support in the build. Excluding ``IPV4=1``
 produces an IPv6-only build.
 
+Add ``CLOUD=1`` to include OCF Cloud in the build. TCP and IPv4
+are included too.
+
 Building sample applications on Windows
 ---------------------------------------
 

apps/cloud_linux.c

+/****************************************************************************
+ *
+ * Copyright 2019 Jozef Kralik All Rights Reserved.
+ * Copyright 2018 Samsung Electronics All Rights Reserved.
+ *
+ * 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 "cloud.h"
+#include "oc_api.h"
+#include "oc_core_res.h"
+#include "port/oc_clock.h"
+#include "rd_client.h"
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+
+// define application specific values.
+static const char *spec_version = "ocf.1.0.0";
+static const char *data_model_version = "ocf.res.1.0.0";
+
+static const char *resource_rt = "core.light";
+static const char *device_rt = "oic.d.cloudDevice";
+static const char *device_name = "Cloud Device";
+
+static const char *manufacturer = "ocfcloud.com";
+
+pthread_mutex_t mutex;
+pthread_cond_t cv;
+
+oc_resource_t *res1;
+oc_resource_t *res2;
+
+int quit = 0;
+
+static void cloud_status_handler(cloud_status_t status, void *user_data) {
+  (void)user_data;
+  printf("cloud_status: %d\n", (int)status);
+}
+
+static int app_init(void) {
+  int ret = oc_init_platform(manufacturer, NULL, NULL);
+  ret |= oc_add_device("/oic/d", device_rt, device_name, spec_version,
+                       data_model_version, NULL, NULL);
+  ret |= cloud_init(0, cloud_status_handler, NULL);
+  return ret;
+}
+
+struct light_t {
+  bool state;
+  int power;
+};
+
+struct light_t light1 = {0};
+struct light_t light2 = {0};
+
+static void get_handler(oc_request_t *request, oc_interface_mask_t interface,
+                        void *user_data) {
+  struct light_t *light = (struct light_t *)user_data;
+
+  printf("get_handler:\n");
+
+  oc_rep_start_root_object();
+  switch (interface) {
+  case OC_IF_BASELINE:
+    oc_process_baseline_interface(request->resource);
+  /* fall through */
+  case OC_IF_RW:
+    oc_rep_set_boolean(root, state, light->state);
+    oc_rep_set_int(root, power, light->power);
+    oc_rep_set_text_string(root, name, "Light");
+    break;
+  default:
+    break;
+  }
+  oc_rep_end_root_object();
+  oc_send_response(request, OC_STATUS_OK);
+}
+
+static void post_handler(oc_request_t *request, oc_interface_mask_t iface_mask,
+                         void *user_data) {
+  struct light_t *light = (struct light_t *)user_data;
+  (void)iface_mask;
+  printf("post_handler:\n");
+  oc_rep_t *rep = request->request_payload;
+  while (rep != NULL) {
+    char *key = oc_string(rep->name);
+    printf("key: %s ", key);
+    if (key && !strcmp(key, "state")) {
+      switch (rep->type) {
+      case OC_REP_BOOL:
+        light->state = rep->value.boolean;
+        printf("value: %d\n", light->state);
+        break;
+      default:
+        oc_send_response(request, OC_STATUS_BAD_REQUEST);
+        return;
+      }
+    } else if (key && !strcmp(key, "power")) {
+      switch (rep->type) {
+      case OC_REP_INT:
+        light->power = rep->value.integer;
+        printf("value: %d\n", light->power);
+        break;
+      default:
+        oc_send_response(request, OC_STATUS_BAD_REQUEST);
+        return;
+      }
+    }
+    rep = rep->next;
+  }
+  oc_send_response(request, OC_STATUS_CHANGED);
+  oc_notify_observers(request->resource);
+}
+
+static void register_resources(void) {
+  res1 = oc_new_resource(NULL, "/light/1", 1, 0);
+  oc_resource_bind_resource_type(res1, resource_rt);
+  oc_resource_bind_resource_interface(res1, OC_IF_RW);
+  oc_resource_set_default_interface(res1, OC_IF_RW);
+  oc_resource_set_discoverable(res1, true);
+  oc_resource_set_observable(res1, true);
+  oc_resource_set_request_handler(res1, OC_GET, get_handler, &light1);
+  oc_resource_set_request_handler(res1, OC_POST, post_handler, &light1);
+  cloud_rd_publish(res1);
+  oc_add_resource(res1);
+
+  res2 = oc_new_resource(NULL, "/light/2", 1, 0);
+  oc_resource_bind_resource_type(res2, resource_rt);
+  oc_resource_bind_resource_interface(res2, OC_IF_RW);
+  oc_resource_set_default_interface(res2, OC_IF_RW);
+  oc_resource_set_discoverable(res2, true);
+  oc_resource_set_observable(res2, true);
+  oc_resource_set_request_handler(res2, OC_GET, get_handler, &light2);
+  oc_resource_set_request_handler(res2, OC_POST, post_handler, &light2);
+  cloud_rd_publish(res2);
+  oc_add_resource(res2);
+}
+
+static void signal_event_loop(void) {
+  pthread_mutex_lock(&mutex);
+  pthread_cond_signal(&cv);
+  pthread_mutex_unlock(&mutex);
+}
+
+void handle_signal(int signal) {
+  (void)signal;
+  signal_event_loop();
+  quit = 1;
+}
+
+int main(void) {
+  int init;
+  struct sigaction sa;
+  sigfillset(&sa.sa_mask);
+  sa.sa_flags = 0;
+  sa.sa_handler = handle_signal;
+  sigaction(SIGINT, &sa, NULL);
+
+  static const oc_handler_t handler = {.init = app_init,
+                                       .signal_event_loop = signal_event_loop,
+                                       .register_resources =
+                                           register_resources};
+
+  oc_storage_config("./cloud_linux_creds");
+
+  if (pthread_mutex_init(&mutex, NULL) < 0) {
+    printf("pthread_mutex_init failed!\n");
+    return -1;
+  }
+
+  init = oc_main_init(&handler);
+  if (init < 0)
+    return init;
+
+  while (quit != 1) {
+    oc_clock_time_t next_event = oc_main_poll();
+    pthread_mutex_lock(&mutex);
+    if (next_event == 0) {
+      pthread_cond_wait(&cv, &mutex);
+    } else {
+      struct timespec ts;
+      ts.tv_sec = (next_event / OC_CLOCK_SECOND);
+      ts.tv_nsec = (next_event % OC_CLOCK_SECOND) * 1.e09 / OC_CLOCK_SECOND;
+      pthread_cond_timedwait(&cv, &mutex, &ts);
+    }
+    pthread_mutex_unlock(&mutex);
+  }
+
+  cloud_shutdown(0);
+  oc_main_shutdown();
+  return 0;
+}

port/linux/Makefile

@@ -55,6 +55,17 @@ MESSAGING_TEST_DIR = $(ROOT_DIR)/messaging/coap/unittest
 MESSAGING_TEST_OBJ_DIR = $(MESSAGING_TEST_DIR)/obj
 MESSAGING_TEST_SRC_FILES := $(wildcard $(MESSAGING_TEST_DIR)/*.cpp)
 MESSAGING_TEST_OBJ_FILES := $(patsubst $(MESSAGING_TEST_DIR)/%.cpp,$(MESSAGING_TEST_OBJ_DIR)/%.o,$(MESSAGING_TEST_SRC_FILES))
+
+CLOUD_TEST_DIR = $(ROOT_DIR)/service/cloud/unittest
+CLOUD_TEST_OBJ_DIR = $(CLOUD_TEST_DIR)/obj
+CLOUD_TEST_SRC_FILES := $(wildcard $(CLOUD_TEST_DIR)/*.cpp)
+CLOUD_TEST_OBJ_FILES := $(patsubst $(CLOUD_TEST_DIR)/%.cpp,$(CLOUD_TEST_OBJ_DIR)/%.o,$(CLOUD_TEST_SRC_FILES))
+
+RD_CLIENT_TEST_DIR = $(ROOT_DIR)/service/resource-directory/client/unittest
+RD_CLIENT_TEST_OBJ_DIR = $(RD_CLIENT_TEST_DIR)/obj
+RD_CLIENT_TEST_SRC_FILES := $(wildcard $(RD_CLIENT_TEST_DIR)/*.cpp)
+RD_CLIENT_TEST_OBJ_FILES := $(patsubst $(RD_CLIENT_TEST_DIR)/%.cpp,$(RD_CLIENT_TEST_OBJ_DIR)/%.o,$(RD_CLIENT_TEST_SRC_FILES))
+
 UNIT_TESTS = apitest platformtest securitytest messagingtest
 
 DTLS= 	aes.c		aesni.c 	arc4.c  	asn1parse.c	asn1write.c	base64.c	\
@@ -78,6 +89,8 @@ CTIMESTAMP=../../api/c-timestamp/timestamp_format.c ../../api/c-timestamp/timest
 
 SRC_COMMON=$(wildcard ../../util/*.c) ${CBOR} ${CTIMESTAMP}
 SRC=$(wildcard ../../messaging/coap/*.c ../../api/*.c ../../port/linux/*.c)
+SRC_CLOUD=$(wildcard ../../service/cloud/src/*.c)
+SRC_RD_CLIENT=$(wildcard ../../service/resource-directory/client/src/*.c)
 
 HEADERS = $(wildcard ../../include/*.h)
 HEADERS += ../../port/linux/oc_config.h
@@ -88,17 +101,29 @@ HEADERS_UTIL_PT = $(wildcard ../../util/pt/*.h)
 HEADERS_PORT = $(wildcard ../../port/*.h)
 HEADERS_TINYCBOR = $(wildcard ../../deps/tinycbor/src/*.h)
 
+CFLAGS_CLOUD=-I../../service/cloud/include
+CFLAGS_RD_CLIENT=-I../../service/resource-directory/client/include
 CFLAGS=-fPIC -fno-asynchronous-unwind-tables -fno-omit-frame-pointer -ffreestanding -Os -fno-stack-protector -ffunction-sections -fdata-sections -fno-reorder-functions -fno-defer-pop -fno-strict-overflow -I./ -I../../include/ -I../../ -std=gnu99 -Wall -Wextra -Werror -pedantic #-Wl,-Map,client.map
 OBJ_COMMON=$(addprefix obj/,$(notdir $(SRC_COMMON:.c=.o)))
 OBJ_CLIENT=$(addprefix obj/client/,$(notdir $(SRC:.c=.o)))
 OBJ_SERVER=$(addprefix obj/server/,$(filter-out oc_obt.o oc_obt_otm_justworks.o oc_obt_otm_randompin.o,$(notdir $(SRC:.c=.o))))
 OBJ_CLIENT_SERVER=$(addprefix obj/client_server/,$(notdir $(SRC:.c=.o)))
-VPATH=../../messaging/coap/:../../util/:../../api/:../../deps/tinycbor/src/:../../deps/mbedtls/library:../../api/c-timestamp:
+OBJ_CLOUD=$(addprefix obj/cloud/,$(notdir $(SRC_CLOUD:.c=.o)))
+OBJ_RD_CLIENT=$(addprefix obj/rd_client/,$(notdir $(SRC_RD_CLIENT:.c=.o)))
+VPATH=../../messaging/coap/:../../util/:../../api/:../../deps/tinycbor/src/:../../deps/mbedtls/library:../../api/c-timestamp:../../service/cloud/src/:../../service/resource-directory/client/src/:
 LIBS?= -lm -pthread -lrt
 
 SAMPLES = server client temp_sensor simpleserver simpleserver_pki simpleclient client_collections_linux \
 	  server_collections_linux server_block_linux client_block_linux smart_home_server_linux multi_device_server multi_device_client smart_lock server_multithread_linux client_multithread_linux
 
+ifeq ($(CLOUD),1)
+	HEADERS += $(wildcard ../../service/cloud/include/*.h)
+	HEADERS += $(wildcard ../../service/resource-directory/client/include/*.h)
+    CFLAGS += -DOC_CLOUD
+	TCP=1
+	IPV4=1
+endif
+
 OBT = onboarding_tool
 
 ifeq ($(DEBUG),1)
@@ -141,6 +166,8 @@ ifeq ($(TCP),1)
 	EXTRA_CFLAGS += -DOC_TCP
 endif
 
+
+
 CFLAGS += $(EXTRA_CFLAGS)
 
 ifeq ($(MEMTRACE),1)
@@ -152,9 +179,18 @@ SAMPLES_CREDS = $(addsuffix _creds, ${SAMPLES} ${OBT})
 CONSTRAINED_LIBS = libiotivity-constrained-server.a libiotivity-constrained-client.a \
 		   libiotivity-constrained-server.so libiotivity-constrained-client.so \
 		   libiotivity-constrained-client-server.so libiotivity-constrained-client-server.a
+
 PC = iotivity-constrained-client.pc iotivity-constrained-server.pc \
      iotivity-constrained-client-server.pc
 
+ifeq ($(CLOUD),1)
+	CONSTRAINED_LIBS += libiotivity-constrained-cloud.a libiotivity-constrained-cloud.so \
+			libiotivity-constrained-rd-client.a libiotivity-constrained-rd-client.so
+	UNIT_TESTS += cloudtest rdclienttest
+	PC += iotivity-constrained-rd-client.pc iotivity-constrained-cloud.pc
+	SAMPLES += cloud_linux
+endif
+
 all: $(CONSTRAINED_LIBS) $(SAMPLES) $(PC)
 
 test: $(UNIT_TESTS)
@@ -186,6 +222,20 @@ $(PLATFORM_TEST_OBJ_DIR)/%.o: $(PLATFORM_TEST_DIR)/%.cpp
 platformtest: $(PLATFORM_TEST_OBJ_FILES) libiotivity-constrained-client-server.a | $(GTEST)
 	$(CXX) $(GTEST_CPPFLAGS) $(TEST_CXXFLAGS) $(EXTRA_CFLAGS) $(HEADER_DIR) -l:gtest_main.a -liotivity-constrained-client-server -L$(OUT_DIR) -L$(GTEST_DIR)/make -lpthread $^ -o $@
 
+$(CLOUD_TEST_OBJ_DIR)/%.o: $(CLOUD_TEST_DIR)/%.cpp
+	@mkdir -p ${@D}
+	$(CXX) $(GTEST_CPPFLAGS) $(TEST_CXXFLAGS) $(EXTRA_CFLAGS) $(HEADER_DIR) $(CFLAGS_CLOUD) -I$(ROOT_DIR)/service/cloud/src -I$(ROOT_DIR)/deps/tinycbor/src -c $< -o $@
+
+cloudtest: $(CLOUD_TEST_OBJ_FILES) libiotivity-constrained-cloud.a libiotivity-constrained-rd-client.a libiotivity-constrained-client-server.a | $(GTEST)
+	$(CXX) $(GTEST_CPPFLAGS) $(TEST_CXXFLAGS) $(EXTRA_CFLAGS) $(HEADER_DIR) $(CFLAGS_CLOUD) -l:gtest_main.a -liotivity-constrained-cloud -liotivity-constrained-rd-client -liotivity-constrained-client-server -L$(OUT_DIR) -L$(GTEST_DIR)/make -lpthread $^ -o $@
+
+$(RD_CLIENT_TEST_OBJ_DIR)/%.o: $(RD_CLIENT_TEST_DIR)/%.cpp
+	@mkdir -p ${@D}
+	$(CXX) $(GTEST_CPPFLAGS) $(TEST_CXXFLAGS) $(EXTRA_CFLAGS) $(HEADER_DIR) $(CFLAGS_RD_CLIENT) -I$(ROOT_DIR)/deps/tinycbor/src -c $< -o $@
+
+rdclienttest: $(RD_CLIENT_TEST_OBJ_FILES) libiotivity-constrained-rd-client.a libiotivity-constrained-client-server.a | $(GTEST)
+	$(CXX) $(GTEST_CPPFLAGS) $(TEST_CXXFLAGS) $(EXTRA_CFLAGS) $(HEADER_DIR) $(CFLAGS_RD_CLIENT) -l:gtest_main.a -liotivity-constrained-rd-client -liotivity-constrained-client-server -L$(OUT_DIR) -L$(GTEST_DIR)/make -lpthread $^ -o $@
+
 $(MESSAGING_TEST_OBJ_DIR)/%.o: $(MESSAGING_TEST_DIR)/%.cpp
 	@mkdir -p ${@D}
 	$(CXX) $(GTEST_CPPFLAGS) $(TEST_CXXFLAGS) $(EXTRA_CFLAGS) $(HEADER_DIR) $(MESSAGING_HEADERS) -c $< -o $@
@@ -211,6 +261,14 @@ obj/client_server/%.o: %.c
 	@mkdir -p ${@D}
 	${CC} -c -o $@ $< ${CFLAGS} -DOC_CLIENT -DOC_SERVER
 
+obj/cloud/%.o: %.c
+	@mkdir -p ${@D}
+	${CC} -c -o $@ $< ${CFLAGS} ${CFLAGS_CLOUD} ${CFLAGS_RD_CLIENT}
+
+obj/rd_client/%.o: %.c
+	@mkdir -p ${@D}
+	${CC} -c -o $@ $< ${CFLAGS} ${CFLAGS_RD_CLIENT}
+
 obj/server/oc_introspection.o: ../../include/server_introspection.dat.h
 obj/client/oc_introspection.o: ../../include/server_introspection.dat.h
 obj/client_server/oc_introspection.o: ../../include/server_introspection.dat.h
@@ -233,6 +291,18 @@ libiotivity-constrained-client-server.a: $(OBJ_COMMON) $(OBJ_CLIENT_SERVER)
 libiotivity-constrained-client-server.so: $(OBJ_COMMON) $(OBJ_CLIENT_SERVER)
 	$(CC) -shared -o $@ $(OBJ_COMMON) $(OBJ_CLIENT_SERVER) $(LIBS)
 
+libiotivity-constrained-cloud.a: $(OBJ_CLOUD)
+	$(AR) -rcs $@ $(OBJ_COMMON) $(OBJ_CLOUD)
+
+libiotivity-constrained-cloud.so: $(OBJ_CLOUD)
+	$(CC) -shared -o $@ $(OBJ_COMMON) $(OBJ_CLOUD) $(LIBS)
+
+libiotivity-constrained-rd-client.a: $(OBJ_RD_CLIENT)
+	$(AR) -rcs $@ $(OBJ_COMMON) $(OBJ_RD_CLIENT)
+
+libiotivity-constrained-rd-client.so: $(OBJ_RD_CLIENT)
+	$(CC) -shared -o $@ $(OBJ_COMMON) $(OBJ_RD_CLIENT) $(LIBS)
+
 server: libiotivity-constrained-server.a $(ROOT_DIR)/apps/server_linux.c
 	@mkdir -p $@_creds
 	${CC} -o $@ ../../apps/server_linux.c libiotivity-constrained-server.a -DOC_SERVER ${CFLAGS} ${LIBS}
@@ -287,6 +357,10 @@ multi_device_client: libiotivity-constrained-client.a $(ROOT_DIR)/apps/multi_dev
 	@mkdir -p $@_creds
 	${CC} -o $@ ../../apps/multi_device_client_linux.c libiotivity-constrained-client.a -DOC_CLIENT ${CFLAGS}  ${LIBS}
 
+cloud_linux: libiotivity-constrained-client-server.a libiotivity-constrained-cloud.a libiotivity-constrained-rd-client.a $(ROOT_DIR)/apps/cloud_linux.c
+	@mkdir -p $@_creds
+	${CC} -o $@ ../../apps/cloud_linux.c libiotivity-constrained-client-server.a libiotivity-constrained-cloud.a libiotivity-constrained-rd-client.a -DOC_CLIENT -DOC_SERVER ${CFLAGS} ${CFLAGS_CLOUD} ${CFLAGS_ST} ${CFLAGS_RD_CLIENT} ${LIBS}
+
 ${OBT}: libiotivity-constrained-client.a $(ROOT_DIR)/onboarding_tool/obtmain.c
 	@mkdir -p $@_creds
 	${CC} -o $@ ../../onboarding_tool/obtmain.c libiotivity-constrained-client.a -DOC_CLIENT ${CFLAGS}  ${LIBS}
@@ -326,6 +400,24 @@ iotivity-constrained-client-server.pc: iotivity-constrained-client-server.pc.in
 		-e 's,@version@,$(VERSION),' \
 		-e 's,@extra_cflags@,$(EXTRA_CFLAGS),'
 
+iotivity-constrained-rd-client.pc: iotivity-constrained-rd-client.pc.in
+	$(SED) > $@ < $< \
+		-e 's,@prefix@,$(prefix),' \
+		-e 's,@exec_prefix@,$(exec_prefix),' \
+		-e 's,@libdir@,$(libdir),' \
+		-e 's,@includedir@,$(includedir),' \
+		-e 's,@version@,$(VERSION),' \
+		-e 's,@extra_cflags@,$(EXTRA_CFLAGS),'
+
+iotivity-constrained-cloud.pc: iotivity-constrained-cloud.pc.in
+	$(SED) > $@ < $< \
+		-e 's,@prefix@,$(prefix),' \
+		-e 's,@exec_prefix@,$(exec_prefix),' \
+		-e 's,@libdir@,$(libdir),' \
+		-e 's,@includedir@,$(includedir),' \
+		-e 's,@version@,$(VERSION),' \
+		-e 's,@extra_cflags@,$(EXTRA_CFLAGS),'
+
 ifneq ($(SECURE),0)
 MBEDTLS_PATCHES ?= $(sort $(wildcard ../../patches/*.patch))
 ${MBEDTLS_DIR}/.git:
@@ -345,7 +437,7 @@ $(MBEDTLS_PATCH_FILE): ${MBEDTLS_DIR}/.git ${MBEDTLS_PATCHES}
 endif
 
 clean:
-	rm -rf obj $(PC) $(CONSTRAINED_LIBS) $(API_TEST_OBJ_FILES) $(SECURITY_TEST_OBJ_FILES) $(PLATFORM_TEST_OBJ_FILES) $(MESSAGING_TEST_OBJ_FILES) $(UNIT_TESTS) $(STORAGE_TEST_DIR)
+	rm -rf obj $(PC) $(CONSTRAINED_LIBS) $(API_TEST_OBJ_FILES) $(SECURITY_TEST_OBJ_FILES) $(PLATFORM_TEST_OBJ_FILES) $(MESSAGING_TEST_OBJ_FILES) $(UNIT_TESTS) $(STORAGE_TEST_DIR) $(CLOUD_TEST_OBJ_FILES) $(RD_CLIENT_TEST_OBJ_FILES)
 
 cleanall: clean
 	rm -rf ${all} $(SAMPLES) $(TESTS) ${OBT} ${SAMPLES_CREDS} $(MBEDTLS_PATCH_FILE)

port/linux/iotivity-constrained-cloud.pc.in

+# Copyright (c) 2019 Jozef Kralik
+# Copyright (c) 2018 Samsung Electronics All Rights Reserved.
+#
+# 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.
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libiotivity-constrained-cloud
+Description: Iotivity constrained resource directory client library
+Version: @version@
+Libs.private: -lm -pthread
+Cflags: -I${includedir}/iotivity-constrained @extra_cflags@
+Libs: -L${libdir} -liotivity-constrained-cloud

port/linux/iotivity-constrained-rd-client.pc.in

+# Copyright (c) 2019 Jozef Kralik
+# Copyright (c) 2018 Samsung Electronics All Rights Reserved.
+#
+# 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.
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libiotivity-constrained-rd-client
+Description: Iotivity constrained resource directory client library
+Version: @version@
+Libs.private: -lm -pthread
+Cflags: -I${includedir}/iotivity-constrained @extra_cflags@
+Libs: -L${libdir} -liotivity-constrained-rd-client

service/cloud/include/cloud.h

+/****************************************************************************
+ *
+ * Copyright 2019 Jozef Kralik All Rights Reserved.
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/**
+  @brief Cloud API for start cloud service.
+  @file
+*/
+
+#ifndef CLOUD_H
+#define CLOUD_H
+
+#include <oc_api.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+/**
+  @brief Cloud connection status.
+*/
+typedef enum {
+  CLOUD_INITIALIZED = 0,
+  CLOUD_SIGNED_UP = 1 << 0,
+  CLOUD_SIGNED_IN = 1 << 1,
+  CLOUD_REFRESHED_TOKEN = 1 << 2,
+  CLOUD_FAILED = 1 << 5,
+  CLOUD_RECONNECTING = 1 << 6,
+} cloud_status_t;
+
+/**
+  @brief A function pointer for handling the cloud status.
+  @param status Current status of the cloud.
+*/
+typedef void (*cloud_cb_t)(cloud_status_t status, void *user_data);
+
+#ifdef __cplusplus
+extern "C" {
+#endif