ipv6_pmtu.h
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1 /**
2  * @file ipv6_pmtu.h
3  * @brief Path MTU Discovery for IPv6
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2010-2019 Oryx Embedded SARL. All rights reserved.
10  *
11  * This file is part of CycloneTCP Open.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License
15  * as published by the Free Software Foundation; either version 2
16  * of the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software Foundation,
25  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26  *
27  * @author Oryx Embedded SARL (www.oryx-embedded.com)
28  * @version 1.9.6
29  **/
30 
31 #ifndef _IPV6_PMTU_H
32 #define _IPV6_PMTU_H
33 
34 //Dependencies
35 #include "core/net.h"
36 
37 //Path MTU discovery support
38 #ifndef IPV6_PMTU_SUPPORT
39  #define IPV6_PMTU_SUPPORT ENABLED
40 #elif (IPV6_PMTU_SUPPORT != ENABLED && IPV6_PMTU_SUPPORT != DISABLED)
41  #error IPV6_PMTU_SUPPORT parameter is not valid
42 #endif
43 
44 //C++ guard
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48 
49 //Path MTU discovery related functions
50 size_t ipv6GetPathMtu(NetInterface *interface, const Ipv6Addr *destAddr);
51 
52 void ipv6UpdatePathMtu(NetInterface *interface,
53  const Ipv6Addr *destAddr, size_t tentativePathMtu);
54 
55 //C++ guard
56 #ifdef __cplusplus
57 }
58 #endif
59 
60 #endif
void ipv6UpdatePathMtu(NetInterface *interface, const Ipv6Addr *destAddr, size_t tentativePathMtu)
Update the PMTU for the specified path.
Definition: ipv6_pmtu.c:93
MacAddr destAddr
Definition: ethernet.h:192
#define NetInterface
Definition: net.h:36
__start_packed struct @179 Ipv6Addr
IPv6 network address.
size_t ipv6GetPathMtu(NetInterface *interface, const Ipv6Addr *destAddr)
Retrieve the PMTU for the specified path.
Definition: ipv6_pmtu.c:54
TCP/IP stack core.