103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
|
/**
|
||
|
|
* @file
|
||
|
|
*
|
||
|
|
* IPv6 fragmentation and reassembly.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2010 Inico Technologies Ltd.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
* are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
|
* and/or other materials provided with the distribution.
|
||
|
|
* 3. The name of the author may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||
|
|
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||
|
|
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||
|
|
* OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* This file is part of the lwIP TCP/IP stack.
|
||
|
|
*
|
||
|
|
* Author: Ivan Delamer <delamer@inicotech.com>
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* Please coordinate changes and requests with Ivan Delamer
|
||
|
|
* <delamer@inicotech.com>
|
||
|
|
*/
|
||
|
|
#ifndef __LWIP_IP6_FRAG_H__
|
||
|
|
#define __LWIP_IP6_FRAG_H__
|
||
|
|
|
||
|
|
#include "lwip/opt.h"
|
||
|
|
#include "lwip/pbuf.h"
|
||
|
|
#include "lwip/ip6_addr.h"
|
||
|
|
#include "lwip/netif.h"
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */
|
||
|
|
|
||
|
|
/* The IPv6 reassembly timer interval in milliseconds. */
|
||
|
|
#define IP6_REASS_TMR_INTERVAL 1000
|
||
|
|
|
||
|
|
/* IPv6 reassembly helper struct.
|
||
|
|
* This is exported because memp needs to know the size.
|
||
|
|
*/
|
||
|
|
struct ip6_reassdata {
|
||
|
|
struct ip6_reassdata *next;
|
||
|
|
struct pbuf *p;
|
||
|
|
struct ip6_hdr * iphdr;
|
||
|
|
u32_t identification;
|
||
|
|
u16_t datagram_len;
|
||
|
|
u8_t nexth;
|
||
|
|
u8_t timer;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define ip6_reass_init() /* Compatibility define */
|
||
|
|
void ip6_reass_tmr(void);
|
||
|
|
struct pbuf * ip6_reass(struct pbuf *p);
|
||
|
|
|
||
|
|
#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */
|
||
|
|
|
||
|
|
#if LWIP_IPV6 && LWIP_IPV6_FRAG /* don't build if not configured for use in lwipopts.h */
|
||
|
|
|
||
|
|
/** A custom pbuf that holds a reference to another pbuf, which is freed
|
||
|
|
* when this custom pbuf is freed. This is used to create a custom PBUF_REF
|
||
|
|
* that points into the original pbuf. */
|
||
|
|
#ifndef __LWIP_PBUF_CUSTOM_REF__
|
||
|
|
#define __LWIP_PBUF_CUSTOM_REF__
|
||
|
|
struct pbuf_custom_ref {
|
||
|
|
/** 'base class' */
|
||
|
|
struct pbuf_custom pc;
|
||
|
|
/** pointer to the original pbuf that is referenced */
|
||
|
|
struct pbuf *original;
|
||
|
|
};
|
||
|
|
#endif /* __LWIP_PBUF_CUSTOM_REF__ */
|
||
|
|
|
||
|
|
err_t ip6_frag(struct pbuf *p, struct netif *netif, ip6_addr_t *dest);
|
||
|
|
|
||
|
|
#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __LWIP_IP6_FRAG_H__ */
|