arduino-esp32/tools/sdk/include/lwip/lwip/ip4_frag.h
Me No Dev 96822d783f
Update IDF to 3.2-3276a13 and esptool.py to 2.5.0 (#1878)
* TX Flow Control and Code cleanup

* Use semaphore instead of delay

TX functionality is done.

* Use single buffer and empty queue on exit

* Fix compile issues because of LwIP code relocation

* Add temporary header to fix Azure not compiling

* Fix AsyncUDP early init

* AsyncUDP Multicast fixes

* Add source mac address and rework multicast

* Allow redefinition of default pins for Serials 1 and 2

* Update IDF to 3276a13

* Update esptool.py to 2.5.0

* Fix sketches

* Fix log level in BluetoothSetial
2018-09-21 08:39:36 +02:00

101 lines
3.0 KiB
C

/**
* @file
* IP fragmentation/reassembly
*/
/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* 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: Jani Monoses <jani@iv.ro>
*
*/
#ifndef LWIP_HDR_IP4_FRAG_H
#define LWIP_HDR_IP4_FRAG_H
#include "lwip/opt.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/ip_addr.h"
#include "lwip/ip.h"
#if LWIP_IPV4
#ifdef __cplusplus
extern "C" {
#endif
#if IP_REASSEMBLY
/* The IP reassembly timer interval in milliseconds. */
#define IP_TMR_INTERVAL 1000
/** IP reassembly helper struct.
* This is exported because memp needs to know the size.
*/
struct ip_reassdata {
struct ip_reassdata *next;
struct pbuf *p;
struct ip_hdr iphdr;
u16_t datagram_len;
u8_t flags;
u8_t timer;
};
void ip_reass_init(void);
void ip_reass_tmr(void);
struct pbuf * ip4_reass(struct pbuf *p);
#endif /* IP_REASSEMBLY */
#if IP_FRAG
#if !LWIP_NETIF_TX_SINGLE_PBUF
#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED
#define LWIP_PBUF_CUSTOM_REF_DEFINED
/** 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. */
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_DEFINED */
#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */
err_t ip4_frag(struct pbuf *p, struct netif *netif, const ip4_addr_t *dest);
#endif /* IP_FRAG */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV4 */
#endif /* LWIP_HDR_IP4_FRAG_H */