Diff: mbed-cloud-client/mbed-coap/source/sn_coap_header_check.c

Revision:

0:276e7a263c35

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-cloud-client/mbed-coap/source/sn_coap_header_check.c	Mon Jul 02 06:30:39 2018 +0000
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2011-2015 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.
+ */
+
+/**
+ * \file sn_coap_header_check.c
+ *
+ * \brief CoAP Header validity checker
+ *
+ * Functionality: Checks validity of CoAP Header
+ *
+ */
+
+/* * * * INCLUDE FILES * * * */
+#include "ns_types.h"
+#include "mbed-coap/sn_coap_header.h"
+#include "mbed-coap/sn_coap_protocol.h"
+#include "sn_coap_header_internal.h"
+#include "sn_coap_protocol_internal.h"
+#include "mbed-trace/mbed_trace.h"
+
+#define TRACE_GROUP "coap"
+
+/**
+ * \fn int8_t sn_coap_header_validity_check(sn_coap_hdr_s *src_coap_msg_ptr, coap_version_e coap_version)
+ *
+ * \brief Checks validity of given Header
+ *
+ * \param *src_coap_msg_ptr is source for building Packet data
+ * \param coap_version is version of used CoAP specification
+ *
+ * \return Return value is status of validity check. In ok cases 0 and in
+ *         failure cases -1
+ */
+int8_t sn_coap_header_validity_check(sn_coap_hdr_s *src_coap_msg_ptr, coap_version_e coap_version)
+{
+    /* * Check validity of CoAP Version * */
+    if (coap_version != COAP_VERSION_1) {
+        return -1;
+    }
+
+    /* * Check validity of Message type * */
+    switch (src_coap_msg_ptr->msg_type) {
+        case COAP_MSG_TYPE_CONFIRMABLE:
+        case COAP_MSG_TYPE_NON_CONFIRMABLE:
+        case COAP_MSG_TYPE_ACKNOWLEDGEMENT:
+        case COAP_MSG_TYPE_RESET:
+            break;      /* Ok cases */
+        default:
+            tr_error("sn_coap_header_validity_check - unknown message type!");
+            return -1;      /* Failed case */
+    }
+
+    /* * Check validity of Message code * */
+    switch (src_coap_msg_ptr->msg_code) {
+        case COAP_MSG_CODE_EMPTY:
+        case COAP_MSG_CODE_REQUEST_GET:
+        case COAP_MSG_CODE_REQUEST_POST:
+        case COAP_MSG_CODE_REQUEST_PUT:
+        case COAP_MSG_CODE_REQUEST_DELETE:
+        case COAP_MSG_CODE_RESPONSE_CREATED:
+        case COAP_MSG_CODE_RESPONSE_DELETED:
+        case COAP_MSG_CODE_RESPONSE_VALID:
+        case COAP_MSG_CODE_RESPONSE_CHANGED:
+        case COAP_MSG_CODE_RESPONSE_CONTENT:
+        case COAP_MSG_CODE_RESPONSE_BAD_REQUEST:
+        case COAP_MSG_CODE_RESPONSE_UNAUTHORIZED:
+        case COAP_MSG_CODE_RESPONSE_BAD_OPTION:
+        case COAP_MSG_CODE_RESPONSE_FORBIDDEN:
+        case COAP_MSG_CODE_RESPONSE_NOT_FOUND:
+        case COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED:
+        case COAP_MSG_CODE_RESPONSE_NOT_ACCEPTABLE:
+        case COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_INCOMPLETE:
+        case COAP_MSG_CODE_RESPONSE_PRECONDITION_FAILED:
+        case COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_TOO_LARGE:
+        case COAP_MSG_CODE_RESPONSE_UNSUPPORTED_CONTENT_FORMAT:
+        case COAP_MSG_CODE_RESPONSE_INTERNAL_SERVER_ERROR:
+        case COAP_MSG_CODE_RESPONSE_NOT_IMPLEMENTED:
+        case COAP_MSG_CODE_RESPONSE_BAD_GATEWAY:
+        case COAP_MSG_CODE_RESPONSE_SERVICE_UNAVAILABLE:
+        case COAP_MSG_CODE_RESPONSE_GATEWAY_TIMEOUT:
+        case COAP_MSG_CODE_RESPONSE_PROXYING_NOT_SUPPORTED:
+        case COAP_MSG_CODE_RESPONSE_CONTINUE:
+            break;      /* Ok cases */
+        default:
+            tr_error("sn_coap_header_validity_check - unknown message code!");
+            return -1;      /* Failed case */
+    }
+
+    /* Success */
+    return 0;
+}