[164] | 1 | /*
|
---|
| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
|
---|
| 3 | * All rights reserved.
|
---|
| 4 | *
|
---|
| 5 | * Redistribution and use in source and binary forms, with or without modification,
|
---|
| 6 | * are permitted provided that the following conditions are met:
|
---|
| 7 | *
|
---|
| 8 | * 1. Redistributions of source code must retain the above copyright notice,
|
---|
| 9 | * this list of conditions and the following disclaimer.
|
---|
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
|
---|
| 11 | * this list of conditions and the following disclaimer in the documentation
|
---|
| 12 | * and/or other materials provided with the distribution.
|
---|
| 13 | * 3. The name of the author may not be used to endorse or promote products
|
---|
| 14 | * derived from this software without specific prior written permission.
|
---|
| 15 | *
|
---|
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
---|
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
---|
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
---|
| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
---|
| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
---|
| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
---|
| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
---|
| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
---|
| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
---|
| 25 | * OF SUCH DAMAGE.
|
---|
| 26 | *
|
---|
| 27 | * This file is part of the lwIP TCP/IP stack.
|
---|
| 28 | *
|
---|
| 29 | * Author: Jani Monoses <jani@iv.ro>
|
---|
| 30 | *
|
---|
| 31 | */
|
---|
| 32 |
|
---|
| 33 | #ifndef __LWIP_IP_FRAG_H__
|
---|
| 34 | #define __LWIP_IP_FRAG_H__
|
---|
| 35 |
|
---|
| 36 | #include "lwip/opt.h"
|
---|
| 37 | #include "lwip/err.h"
|
---|
| 38 | #include "lwip/pbuf.h"
|
---|
| 39 | #include "lwip/netif.h"
|
---|
| 40 | #include "lwip/ip_addr.h"
|
---|
| 41 | #include "lwip/ip.h"
|
---|
| 42 |
|
---|
| 43 | #ifdef __cplusplus
|
---|
| 44 | extern "C" {
|
---|
| 45 | #endif
|
---|
| 46 |
|
---|
| 47 | #if IP_REASSEMBLY
|
---|
| 48 | /* The IP reassembly timer interval in milliseconds. */
|
---|
| 49 | #define IP_TMR_INTERVAL 1000
|
---|
| 50 |
|
---|
| 51 | /* IP reassembly helper struct.
|
---|
| 52 | * This is exported because memp needs to know the size.
|
---|
| 53 | */
|
---|
| 54 | struct ip_reassdata {
|
---|
| 55 | struct ip_reassdata *next;
|
---|
| 56 | struct pbuf *p;
|
---|
| 57 | struct ip_hdr iphdr;
|
---|
| 58 | u16_t datagram_len;
|
---|
| 59 | u8_t flags;
|
---|
| 60 | u8_t timer;
|
---|
| 61 | };
|
---|
| 62 |
|
---|
| 63 | void ip_reass_init(void);
|
---|
| 64 | void ip_reass_tmr(void);
|
---|
| 65 | struct pbuf * ip_reass(struct pbuf *p);
|
---|
| 66 | #endif /* IP_REASSEMBLY */
|
---|
| 67 |
|
---|
| 68 | #if IP_FRAG
|
---|
| 69 | #if !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF
|
---|
| 70 | /** A custom pbuf that holds a reference to another pbuf, which is freed
|
---|
| 71 | * when this custom pbuf is freed. This is used to create a custom PBUF_REF
|
---|
| 72 | * that points into the original pbuf. */
|
---|
| 73 | struct pbuf_custom_ref {
|
---|
| 74 | /** 'base class' */
|
---|
| 75 | struct pbuf_custom pc;
|
---|
| 76 | /** pointer to the original pbuf that is referenced */
|
---|
| 77 | struct pbuf *original;
|
---|
| 78 | };
|
---|
| 79 | #endif /* !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */
|
---|
| 80 |
|
---|
| 81 | err_t ip_frag(struct pbuf *p, struct netif *netif, ip_addr_t *dest);
|
---|
| 82 | #endif /* IP_FRAG */
|
---|
| 83 |
|
---|
| 84 | #ifdef __cplusplus
|
---|
| 85 | }
|
---|
| 86 | #endif
|
---|
| 87 |
|
---|
| 88 | #endif /* __LWIP_IP_FRAG_H__ */
|
---|