Diff: mbed-client/source/m2msecurity.cpp

Revision:

11:cada08fc8a70

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-client/source/m2msecurity.cpp	Thu Jun 09 17:08:36 2016 +0000
@@ -0,0 +1,358 @@
+/*
+ * 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 <cstdio>
+#include "mbed-client/m2msecurity.h"
+#include "mbed-client/m2mconstants.h"
+#include "mbed-client/m2mobject.h"
+#include "mbed-client/m2mobjectinstance.h"
+#include "mbed-client/m2mresource.h"
+
+
+M2MSecurity::M2MSecurity(ServerType ser_type)
+: M2MObject(M2M_SECURITY_ID),
+ _server_type(ser_type),
+ _server_instance(NULL)
+{
+     _server_instance  = M2MObject::create_object_instance();
+
+    if(_server_instance) {
+
+        M2MResource* res = _server_instance->create_dynamic_resource(SECURITY_M2M_SERVER_URI,
+                                                                     OMA_RESOURCE_TYPE,
+                                                                     M2MResourceInstance::STRING,
+                                                                     false);
+        if(res) {
+            res->set_operation(M2MBase::NOT_ALLOWED);
+        }
+        res = _server_instance->create_dynamic_resource(SECURITY_BOOTSTRAP_SERVER,
+                                                        OMA_RESOURCE_TYPE,
+                                                        M2MResourceInstance::BOOLEAN,
+                                                        false);
+        if(res) {
+            res->set_operation(M2MBase::NOT_ALLOWED);
+        }
+        res = _server_instance->create_dynamic_resource(SECURITY_SECURITY_MODE,
+                                                        OMA_RESOURCE_TYPE,
+                                                        M2MResourceInstance::INTEGER,
+                                                        false);
+        if(res) {
+            res->set_operation(M2MBase::NOT_ALLOWED);
+        }
+        res = _server_instance->create_dynamic_resource(SECURITY_PUBLIC_KEY,
+                                                        OMA_RESOURCE_TYPE,
+                                                        M2MResourceInstance::OPAQUE,
+                                                        false);
+        if(res) {
+            res->set_operation(M2MBase::NOT_ALLOWED);
+        }
+        res = _server_instance->create_dynamic_resource(SECURITY_SERVER_PUBLIC_KEY,
+                                                        OMA_RESOURCE_TYPE,
+                                                        M2MResourceInstance::OPAQUE,
+                                                        false);
+        if(res) {
+            res->set_operation(M2MBase::NOT_ALLOWED);
+        }
+        res = _server_instance->create_dynamic_resource(SECURITY_SECRET_KEY,
+                                                        OMA_RESOURCE_TYPE,
+                                                        M2MResourceInstance::OPAQUE,
+                                                        false);
+        if(res) {
+            res->set_operation(M2MBase::NOT_ALLOWED);
+        }
+        if(M2MSecurity::M2MServer == ser_type) {
+            res = _server_instance->create_dynamic_resource(SECURITY_SHORT_SERVER_ID,
+                                                            OMA_RESOURCE_TYPE,
+                                                            M2MResourceInstance::INTEGER,
+                                                            false);
+            if(res) {
+                res->set_operation(M2MBase::NOT_ALLOWED);
+            }
+        }
+    }
+}
+
+M2MSecurity::~M2MSecurity()
+{
+    _server_instance = NULL;
+}
+
+M2MResource* M2MSecurity::create_resource(SecurityResource resource, uint32_t value)
+{
+    M2MResource* res = NULL;
+    String security_id = "";
+    if(!is_resource_present(resource)) {
+        switch(resource) {
+            case SMSSecurityMode:
+               security_id = SECURITY_SMS_SECURITY_MODE;
+               break;
+            case M2MServerSMSNumber:
+                security_id = SECURITY_M2M_SERVER_SMS_NUMBER;
+                break;
+            case ShortServerID:
+                security_id = SECURITY_SHORT_SERVER_ID;
+                break;
+            case ClientHoldOffTime:
+                security_id = SECURITY_CLIENT_HOLD_OFF_TIME;
+                break;
+            default:
+                break;
+        }
+    }
+    if(!security_id.empty()) {
+        if(_server_instance) {
+
+            res = _server_instance->create_dynamic_resource(security_id,OMA_RESOURCE_TYPE,
+                                                            M2MResourceInstance::INTEGER,
+                                                            false);
+
+            if(res) {
+                char *buffer = (char*)malloc(20);
+                if(buffer) {
+                    int size = snprintf(buffer, 20,"%ld",(long int)value);
+                    res->set_operation(M2MBase::NOT_ALLOWED);
+                    res->set_value((const uint8_t*)buffer,
+                                   (uint32_t)size);
+                    free(buffer);
+                }
+            }
+        }
+    }
+    return res;
+}
+
+bool M2MSecurity::delete_resource(SecurityResource resource)
+{
+    bool success = false;
+    String security_id = "";
+    switch(resource) {
+        case SMSSecurityMode:
+           security_id = SECURITY_SMS_SECURITY_MODE;
+           break;
+        case M2MServerSMSNumber:
+            security_id = SECURITY_M2M_SERVER_SMS_NUMBER;
+            break;
+        case ShortServerID:
+            if(M2MSecurity::Bootstrap == _server_type) {
+                security_id = SECURITY_SHORT_SERVER_ID;
+            }
+            break;
+        case ClientHoldOffTime:
+            security_id = SECURITY_CLIENT_HOLD_OFF_TIME;
+            break;
+        default:
+            // Others are mandatory resources hence cannot be deleted.
+            break;
+    }
+    if(!security_id.empty()) {
+        if(_server_instance) {
+            success = _server_instance->remove_resource(security_id);
+        }
+    }
+    return success;
+}
+
+bool M2MSecurity::set_resource_value(SecurityResource resource,
+                                     const String &value)
+{
+    bool success = false;
+    if(M2MSecurity::M2MServerUri == resource) {
+        M2MResource* res = get_resource(resource);
+        if(res) {
+            success = res->set_value((const uint8_t*)value.c_str(),(uint32_t)value.length());
+        }
+    }
+    return success;
+}
+
+bool M2MSecurity::set_resource_value(SecurityResource resource,
+                                     uint32_t value)
+{
+    bool success = false;
+    M2MResource* res = get_resource(resource);
+    if(res) {
+        if(M2MSecurity::SecurityMode == resource        ||
+           M2MSecurity::SMSSecurityMode == resource     ||
+           M2MSecurity::M2MServerSMSNumber == resource  ||
+           M2MSecurity::ShortServerID == resource       ||
+           M2MSecurity::ClientHoldOffTime == resource) {
+            // If it is any of the above resource
+            // set the value of the resource.
+            char *buffer = (char*)malloc(20);
+            if(buffer) {
+                int size = snprintf(buffer, 20,"%ld",(long int)value);
+                success = res->set_value((const uint8_t*)buffer,
+                                         (uint32_t)size);
+                free(buffer);
+            }
+        }
+    }
+    return success;
+}
+
+bool M2MSecurity::set_resource_value(SecurityResource resource,
+                                     const uint8_t *value,
+                                     const uint16_t length)
+{
+    bool success = false;
+    M2MResource* res = get_resource(resource);
+    if(res) {
+        if(M2MSecurity::PublicKey == resource           ||
+           M2MSecurity::ServerPublicKey == resource     ||
+           M2MSecurity::Secretkey == resource) {
+            success = res->set_value(value,length);
+        }
+    }
+    return success;
+}
+
+String M2MSecurity::resource_value_string(SecurityResource resource) const
+{
+    String value = "";
+    M2MResource* res = get_resource(resource);
+    if(res) {
+        if(M2MSecurity::M2MServerUri == resource) {
+            uint8_t* buffer = NULL;
+            uint32_t length = 0;
+            res->get_value(buffer,length);
+
+            char *char_buffer = (char*)malloc(length+1);
+            if(char_buffer) {
+                memset(char_buffer,0,length+1);
+                if(buffer) {
+                    memcpy(char_buffer,(char*)buffer,length);                    
+                }
+                String s_name(char_buffer);
+                value = s_name;
+                free(char_buffer);
+            }
+            if(buffer) {
+                free(buffer);
+            }
+        }
+    }
+    return value;
+}
+
+uint32_t M2MSecurity::resource_value_buffer(SecurityResource resource,
+                               uint8_t *&data) const
+{
+    uint32_t size = 0;
+    M2MResource* res = get_resource(resource);
+    if(res) {
+        if(M2MSecurity::PublicKey == resource        ||
+           M2MSecurity::ServerPublicKey == resource  ||
+           M2MSecurity::Secretkey == resource) {
+            res->get_value(data,size);
+        }
+    }
+    return size;
+}
+
+
+uint32_t M2MSecurity::resource_value_int(SecurityResource resource) const
+{
+    uint32_t value = 0;
+    M2MResource* res = get_resource(resource);
+    if(res) {
+        if(M2MSecurity::SecurityMode == resource        ||
+           M2MSecurity::SMSSecurityMode == resource     ||
+           M2MSecurity::M2MServerSMSNumber == resource  ||
+           M2MSecurity::ShortServerID == resource       ||
+           M2MSecurity::ClientHoldOffTime == resource) {
+            // Get the value and convert it into integer
+            uint8_t* buffer = NULL;
+            uint32_t length = 0;
+            res->get_value(buffer,length);
+            if(buffer) {
+                value = atoi((const char*)buffer);
+                free(buffer);
+            }
+        }
+    }
+    return value;
+}
+
+bool M2MSecurity::is_resource_present(SecurityResource resource) const
+{
+    bool success = false;
+    M2MResource *res = get_resource(resource);
+    if(res) {
+        success = true;
+    }
+    return success;
+}
+
+uint16_t M2MSecurity::total_resource_count() const
+{
+    uint16_t count = 0;
+    if(_server_instance) {
+        count = _server_instance->resources().size();
+    }
+    return count;
+}
+
+M2MSecurity::ServerType M2MSecurity::server_type() const
+{
+    return _server_type;
+}
+
+M2MResource* M2MSecurity::get_resource(SecurityResource res) const
+{
+    M2MResource* res_object = NULL;
+    if(_server_instance) {
+        String res_name = "";
+        switch(res) {
+            case M2MServerUri:
+                res_name = SECURITY_M2M_SERVER_URI;
+                break;
+            case BootstrapServer:
+                res_name = SECURITY_BOOTSTRAP_SERVER;
+                break;
+            case SecurityMode:
+                res_name = SECURITY_SECURITY_MODE;
+                break;
+            case PublicKey:
+                res_name = SECURITY_PUBLIC_KEY;
+                break;
+            case ServerPublicKey:
+                res_name = SECURITY_SERVER_PUBLIC_KEY;
+                break;
+            case Secretkey:
+                res_name = SECURITY_SECRET_KEY;
+                break;
+            case SMSSecurityMode:
+                res_name = SECURITY_SMS_SECURITY_MODE;
+                break;
+            case SMSBindingKey:
+                res_name = SECURITY_SMS_BINDING_KEY;
+                break;
+            case SMSBindingSecretKey:
+                res_name = SECURITY_SMS_BINDING_SECRET_KEY;
+                break;
+            case M2MServerSMSNumber:
+                res_name = SECURITY_M2M_SERVER_SMS_NUMBER;
+                break;
+            case ShortServerID:
+                res_name = SECURITY_SHORT_SERVER_ID;
+                break;
+            case ClientHoldOffTime:
+                res_name = SECURITY_CLIENT_HOLD_OFF_TIME;
+                break;
+        }
+        res_object = _server_instance->resource(res_name);
+    }
+    return res_object;
+}