Import Mbed OS hard-float snapshot

connectivity/nanostack/sal-stack-nanostack/source/Security/PANA/pana_header.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2017, Arm Limited and affiliates.
+ * 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.
+ */
+
+#ifndef PANA_HEADER_H_
+#define PANA_HEADER_H_
+
+/****************************************
+ * Pana Header Base
+ * Reserved     Length  FlaGS   Type    Session ID  Sequncy Numb
+ * 0x00 0x00    16-bit  16-bit  16-bit  32-bit      32-bit
+ *
+ */
+
+#define PANA_HEADER_LENGTH 16
+
+/**
+ * Pana Message types
+ */
+#define PANA_MSG_PCI 0x0001
+#define PANA_MSG_PA 0x0002
+#define PANA_MSG_PNA 0x0004
+#define PANA_MSG_RELAY 0x0005
+
+/**
+ * Pana Message flags
+ */
+#define PANA_FLAGS_REQUEST          0x8000
+#define PANA_FLAGS_RESPONSE         0x0000
+#define PANA_FLAGS_START            0x4000
+#define PANA_FLAGS_COMPLETE         0x2000
+#define PANA_FLAG_START_REQ_MASK    (PANA_FLAGS_REQUEST | PANA_FLAGS_START)
+#define PANA_FLAGS_PING_RESPONSE    0x0000
+#define PANA_FLAGS_PING             0x0800
+
+typedef struct {
+    uint16_t flags;
+    uint16_t type;
+    uint16_t payload_len;
+    uint32_t session_id;
+    uint32_t seq;
+    bool agent_retry;
+} pana_header_t;
+
+bool pana_header_parse(uint8_t *ptr, uint16_t data_length, pana_header_t *header);
+uint8_t *pana_header_write(uint8_t *ptr, const pana_header_t *header);
+
+#endif /* PANA_HEADER_H_ */