1 /*
2  * FreeRTOS+TCP <DEVELOPMENT BRANCH>
3  * Copyright (C) 2022 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
4  *
5  * SPDX-License-Identifier: MIT
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy of
8  * this software and associated documentation files (the "Software"), to deal in
9  * the Software without restriction, including without limitation the rights to
10  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
11  * the Software, and to permit persons to whom the Software is furnished to do so,
12  * subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in all
15  * copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
19  * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
20  * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * http://aws.amazon.com/freertos
25  * http://www.FreeRTOS.org
26  */
27 
28 #ifndef FREERTOS_IPV6_UTILS_H
29 #define FREERTOS_IPV6_UTILS_H
30 
31 /**
32  * @file FreeRTOS_IPv6_Utils.h
33  * @brief Implements the utility functions for FreeRTOS_IP.c
34  */
35 
36 /* Standard includes. */
37 #include <stdint.h>
38 #include <stdio.h>
39 
40 /* FreeRTOS includes. */
41 #include "FreeRTOS.h"
42 
43 /* FreeRTOS+TCP includes. */
44 #include "FreeRTOS_IP.h"
45 
46 
47 /* *INDENT-OFF* */
48 #ifdef __cplusplus
49     extern "C" {
50 #endif
51 /* *INDENT-ON* */
52 
53 /* Set the MAC-address that belongs to a given IPv6 multi-cast address. */
54 void vSetMultiCastIPv6MacAddress( const IPv6_Address_t * pxAddress,
55                                   MACAddress_t * pxMACAddress );
56 
57 extern BaseType_t prvChecksumIPv6Checks( uint8_t * pucEthernetBuffer,
58                                          size_t uxBufferLength,
59                                          struct xPacketSummary * pxSet );
60 
61 extern BaseType_t prvChecksumICMPv6Checks( size_t uxBufferLength,
62                                            struct xPacketSummary * pxSet );
63 
64 /* Get total length of all extension headers in IPv6 packet. */
65 size_t usGetExtensionHeaderLength( const uint8_t * pucEthernetBuffer,
66                                    size_t uxBufferLength,
67                                    uint8_t * pucProtocol );
68 
69 /* *INDENT-OFF* */
70 #ifdef __cplusplus
71     } /* extern "C" */
72 #endif
73 /* *INDENT-ON* */
74 
75 #endif /* FREERTOS_IP_UTILS_H */
76